Relay

Abstract

The utility model relates to the technical field of electronic technology and electrical engineering, and discloses a relay, which comprises a shell, a driving mechanism and a plurality of groups of contact mechanisms, the driving mechanism comprises a first driving assembly and a rotating part; a plurality of bosses are convexly arranged on the rotating piece; the multiple bosses are sequentially arranged at intervals in the axial direction of the rotating piece and arranged in the circumferential direction in a surrounding mode. The rotating piece has a first rotating position and a second rotating position; the plurality of groups of contact mechanisms are in one-to-one correspondence with the plurality of bosses; the contact mechanism comprises a static contact structure and a movable contact structure, and a first end of the movable contact structure is provided with a closed position abutting against the static contact structure and an open position separated from the static contact structure; when the rotating part is located at the first rotating position, the second ends of the at least one group of movable contact structures abut against the corresponding bosses, and the first ends are located at the closed position; when the rotating member is in the second rotating position, the second ends of the at least one group of movable contact structures are separated from the corresponding bosses, and the first ends are in the disconnected positions, so that the instant response capability of the system is improved, and the energy consumption is reduced.

Description

Technical Field

[0001] This utility model relates to the fields of electronic technology and electrical engineering technology, specifically to relays. Background Technology

[0002] Relays, as important control components in electrical control systems, have a wide range of applications. Traditional relays mainly use electromagnetic coils to achieve the closing and opening of circuits. This requires the electromagnetic coils to be continuously energized to maintain the current closed or open state of the circuit, resulting in significant energy consumption. This is not conducive to electric vehicles to meet the growing requirements of energy conservation, environmental protection, and long driving range. Furthermore, traditional relays have certain limitations in terms of switching speed, operational reliability, and control accuracy. In some systems requiring extremely fast response times, traditional relays cannot complete signal switching in a timely and accurate manner, thus limiting system performance. Utility Model Content

[0003] In view of this, the present invention provides a relay to solve the problems of high energy consumption and slow response speed of traditional relays.

[0004] This utility model provides a relay, including a housing, a drive mechanism, and multiple sets of contact mechanisms. The housing includes a base and a top cover connected to each other. The drive mechanism is located inside the base. The drive mechanism includes a first drive assembly and a rotating member. The rotating member is rotatably disposed inside the base and has multiple protrusions on its outer periphery. The multiple protrusions are arranged sequentially at intervals along the axial direction of the rotating member and are arranged around the circumference of the rotating member. Under the drive of the first drive assembly, the rotating member has a first rotational position and a second rotational position around the circumference. The multiple sets of contact mechanisms are arranged sequentially at intervals along the axial direction of the rotating member. The multiple protrusions correspond one-to-one; the contact mechanism includes a stationary contact structure and a moving contact structure, the stationary contact structure being fixed on the upper cover; the moving contact structure is slidably disposed within the housing, with its first end having a closed position abutting against the stationary contact structure and an open position separating from the stationary contact structure; when the rotating member is in the first rotational position, the second end of at least one set of the moving contact structures abuts against the corresponding protrusion, and the first end is in the closed position; when the rotating member is in the second rotational position, the second end of at least one set of the moving contact structures separates from the corresponding protrusion, and the first end is in the open position.

[0005] Beneficial effects: When the rotating component is in the first rotational position, the moving contact structure is in the closed position; when the rotating component is in the second rotational position, the moving contact structure is in the open position. Therefore, the switching between the closed and open states of the contact mechanism can be achieved simply by driving the rotating component to rotate through the first driving component. That is, during the transition between the closed and open states, only a single action is required to stably maintain the current state. In systems with extremely high response speed requirements, the signal switching action can be completed quickly and accurately, greatly improving the system's instantaneous response capability. Furthermore, it does not rely on continuous power consumption to maintain the contact state, thereby significantly reducing the overall energy consumption level and achieving efficient energy utilization and saving effects. Since the maintenance of the contact state does not depend on continuous power input, it effectively avoids state changes that may be caused by power fluctuations or faults, ensuring the high stability of the contact mechanism during long-term operation, reducing maintenance needs caused by equipment failure or performance degradation, reducing the inconvenience and cost caused by frequent maintenance or replacement of parts, and effectively extending the service life of the equipment. Because multiple bosses are arranged sequentially and at intervals along the axial direction of the rotating component, each boss controls the closing or opening of a set of contact mechanisms when the component rotates. Since multiple bosses are arranged circumferentially around the rotating component, as the component rotates to different angular positions, different bosses will sequentially engage with the contact mechanisms, thereby triggering the closing or opening of different contact mechanisms. This allows for flexible and precise control of the relay's closing and opening states under different timing and logic conditions, according to actual needs. It enables precise control of multiple different timing and logic closing and opening states of the relay, providing strong support for the optimized design and efficient operation of electrical control systems.

[0006] In one optional embodiment, the driving mechanism further includes a second driving component. Under the drive of the second driving component, the rotating member has a first fixed position and a second fixed position that translate along the axial direction. When the rotating member is in the first fixed position, the first end of the moving contact structure has a closed position that abuts against the stationary contact structure and a disconnected position that separates from the stationary contact structure. When the rotating member is in the second fixed position, the second end of the moving contact structure and the corresponding boss are axially spaced apart, and the first end of the moving contact structure has a powered-down position that separates from the stationary contact structure.

[0007] Beneficial effects: When the rotating component is in the first fixed position, it can rotate under the drive of the first driving component, enabling the second end of the moving contact structure to abut or separate from the boss. The first end of the moving contact structure has a closed position abutting against the stationary contact structure and an open position separating from the stationary contact structure, thereby realizing the closing or opening of the contact mechanism and ensuring the normal operation of the relay. In an emergency, the rotating component can translate along the axial direction and stop at the second fixed position, enabling the second end of the moving contact to directly and quickly disengage from the boss. The first end of the moving contact structure is separated from the stationary contact structure and is in the energized position, thereby realizing the rapid disconnection function of the relay in an emergency. This not only ensures the rapid response of the relay in an emergency but also greatly improves the safety and reliability of the system.

[0008] In one optional embodiment, the base is provided with first bearings on both side plates along the axial direction of the rotating member; the rotating member includes a key shaft and a cam shaft, the two ends of the key shaft are respectively connected to the two first bearings, and are rotatably connected to the side plates through the first bearings; the cam shaft is sleeved on the outer periphery of the key shaft, slides relative to the key shaft in the axial direction, and rotates synchronously with the key shaft, and the boss is provided on the outer periphery of the cam shaft.

[0009] Beneficial effects: The first bearing enables a rotatable connection between the key shaft and the base; the key shaft and cam shaft enable the key shaft to drive the cam shaft to rotate synchronously, thus enabling the first drive assembly to drive the cam shaft to rotate, and also enable the cam shaft and key shaft to slide relative to each other in the axial direction, facilitating the cam shaft to translate along the axial direction under the action of the second drive assembly.

[0010] In one optional embodiment, the first drive assembly includes a first drive member and a gear assembly; the first drive member is fixed inside the base; the gear assembly includes a driving gear, an intermediate gear, and a driven gear, the driving gear being fixed on the drive shaft of the first drive member; the intermediate gear is rotatably connected inside the base and is drive-driven to the driving gear; the driven gear is fixed on the key shaft and is drive-driven to the intermediate gear.

[0011] Beneficial effects: The intermediate gear in the gear assembly compensates for the spatial gap between the driving and driven gears, ensuring the continuity and efficiency of the power transmission path; under the drive of the first driving member, the driving gear drives the intermediate gear to rotate, which in turn drives the driven gear to rotate, thereby realizing the rotation of the key shaft; since the camshaft rotates synchronously with the key shaft, when the key shaft is driven to rotate, the camshaft also rotates synchronously. During this process, the rotating component can achieve smooth and rapid switching between the first and second rotation positions.

[0012] In one optional embodiment, the second drive assembly includes a second drive member, a linkage assembly, and a shift fork assembly; the second drive member is fixed inside the base; the linkage assembly includes a rocker arm and a connecting rod, one end of the rocker arm being fixed to the output shaft of the second drive member; one end of the connecting rod being fixedly connected to the other end of the rocker arm; the shift fork assembly is sleeved on the outer periphery of the camshaft and rotatably connected to the camshaft; and is fixedly connected to the other end of the connecting rod; under the drive of the second drive member, the shift fork assembly is adapted to drive the camshaft to move away from the gear assembly.

[0013] Beneficial effects: By setting up the rocker arm, when the output shaft of the second drive unit rotates, the rotational power is converted into the swing motion of the rocker arm. The swing of the rocker arm then drives the connecting rod to move away from the gear assembly along a preset trajectory, thereby driving the movement of the shift fork assembly. Since the shift fork assembly is connected to the camshaft, as the shift fork assembly moves, the camshaft is also driven, moving smoothly in the same direction away from the gear assembly, ultimately achieving the emergency disconnection of the relay.

[0014] In one optional embodiment, the camshaft has a keyway on its outer periphery, and the second drive assembly further includes a first snap ring and a second bearing; the first snap ring is disposed in the keyway; the second bearing is disposed on the side of the first snap ring away from the gear assembly and is sleeved on the outer periphery of the camshaft; the shift fork assembly is connected to the camshaft through the second bearing.

[0015] Beneficial effects: By setting a second bearing, a rotatable connection can be achieved between the camshaft and the shift fork assembly, ensuring that the camshaft can rotate freely under the drive of the first drive assembly. At the same time, the shift fork assembly can also drive the camshaft to slide smoothly in the axial direction under the drive of the second drive assembly. This ensures that these two action modes can operate independently and in coordination, greatly improving the flexibility and functionality of the system. Furthermore, the setting of the second snap ring effectively limits the second bearing in the axial direction, preventing unnecessary axial movement during operation. This not only ensures the precise positioning of the second bearing but also effectively extends its service life, providing a guarantee for the long-term stable operation of the entire system.

[0016] In one optional embodiment, the shift fork assembly has two sets of limiting members protruding from the side of the base plate near the base. The two sets of limiting members are arranged on both sides of the shift fork assembly along the circumference of the shift fork assembly and abut against the base plate of the base.

[0017] Beneficial effects: By setting two sets of limiting components, any unexpected rotation of the shift fork assembly in the circumferential direction is prevented, effectively avoiding transmission errors or system failures caused by accidental rotation of the shift fork assembly. This not only improves the circumferential stability of the shift fork assembly, but also further consolidates the overall structural stability and reliability of the second drive assembly.

[0018] In one alternative embodiment, the shift fork assembly includes a first shift fork and a second shift fork, the first shift fork and the second shift fork being arranged sequentially along the axial direction, the first shift fork being connected to the connecting rod, and the second shift fork being detachably connected to the first shift fork.

[0019] Beneficial effects: The configuration of the first and second shift forks enhances the stability of the connection between the shift fork assembly and the second bearing. This not only effectively fixes and limits the second bearing, ensuring its precise position and stable movement during operation, but also significantly improves the reliability and durability of the entire transmission system. Furthermore, the configuration of the first and second shift forks facilitates the installation and disassembly of the shift fork assembly and the second bearing, thereby improving work efficiency.

[0020] In one alternative embodiment, the upper cover is provided with a baffle, which is disposed between two adjacent stationary contact structures.

[0021] Beneficial effects: By setting a baffle between two adjacent stationary contact structures, it is possible not only to isolate adjacent stationary contacts during electrical connection and prevent electric arcs from jumping directly between them, but also to reduce the generation and duration of electric arcs. This ensures that while not interfering with normal current conduction, it can block potential arc paths to the maximum extent and improve the anti-arc resistance between contacts.

[0022] In one optional embodiment, the upper cover has an insulating cover on the side near the base, and the insulating cover has a mounting hole. The moving contact structure includes a bushing, a push rod, a moving contact, a first elastic element, and a second elastic element. The bushing is fixed in the mounting hole. The push rod is slidably inserted into the bushing, and the top of the push rod has a second retaining spring, and the bottom of the push rod has a third retaining spring. The moving contact is sleeved on the push rod and located between the second retaining spring and the bushing. The first elastic element is disposed on the side of the bushing near the moving contact, with one end connected to the moving contact and the other end connected to the bushing. The second elastic element is disposed on the side of the bushing near the third retaining spring, with one end connected to the bushing and the other end connected to the third retaining spring.

[0023] Beneficial effects: The push rod enables the sliding installation of the moving contact on the insulating cover, ensuring its flexible movement along a predetermined path and improving the dynamic response performance of the entire contact mechanism. The second snap ring effectively secures the moving contact, preventing it from accidentally detaching from the push rod under external force, thus ensuring the continuity and safety of the contact mechanism during operation. The first elastic element ensures the contact area between the moving and stationary contacts, improving the reliability and conductivity of the electrical connection. The second elastic element provides the necessary return force to the moving contact, allowing it to smoothly return to its initial position after completing the contact action, ensuring efficient and accurate closing and opening of the contact mechanism. Through the synergistic action of the push rod, the second snap ring, the first elastic element, and the second elastic element, we not only achieve stable sliding and reliable fixation of the moving contact but also optimize the contact performance and return mechanism between contacts, ensuring the safe and efficient operation of the electrical connection system. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of this utility model, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is an exploded view of the overall structure of the relay according to an embodiment of the present utility model;

[0026] Figure 2 This is a schematic diagram of the internal structure of the relay according to an embodiment of the present utility model;

[0027] Figure 3 This is a schematic diagram of the rotating component, driven wheel, and shift fork assembly according to an embodiment of the present utility model;

[0028] Figure 4 This is a schematic diagram of the rotating component in the first fixed position according to an embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of the rotating component in the second fixed position according to an embodiment of the present invention.

[0030] Explanation of reference numerals in the attached figures:

[0031] 11. Base; 111. Side plate; 112. First bearing; 113. Connecting block; 12. Top cover; 121. Baffle; 13. Insulating cover; 211. First driving component; 212. Gear assembly; 2121. Driving wheel; 2122. Intermediate gear; 2123. Driven wheel; 21231. Second locking groove; 22. Rotating component; 221. Boss; 222. Key shaft; 2221. Locking block; 223. Camshaft; 23. Second driving assembly; 231. Second Drive component; 232, Linkage assembly; 2321, Rocker arm; 2322, Connecting rod; 233, Shift fork assembly; 2331, Limiting component; 2332, First shift fork; 2333, Second shift fork; 2334, First protrusion; 2335, Second protrusion; 234, First snap ring; 235, Second bearing; 31, Stationary contact structure; 32, Moving contact structure; 321, Bushing; 322, Push rod; 323, Second snap ring; 324, Third snap ring; 325, Moving contact. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] The following is combined with Figures 1 to 5 The following describes embodiments of the present invention.

[0034] According to an embodiment of the present invention, a relay is provided, including a housing, a drive mechanism, and multiple sets of contact mechanisms; the housing includes a base 11 and a top cover 12 connected to each other; the drive mechanism is located inside the base 11; the drive mechanism includes a first drive assembly and a rotating member 22; the rotating member 22 is rotatably disposed inside the base 11, and has multiple protrusions 221 protruding from its outer periphery; the multiple protrusions 221 are sequentially spaced along the axial direction of the rotating member 22 and are arranged around the circumference of the rotating member 22; under the drive of the first drive assembly, the rotating member 22 has a first rotational position and a second rotational position around the circumference; the multiple sets of contact mechanisms are sequentially spaced along the axial direction of the rotating member 22; and the multiple sets of contact mechanisms Each of the plurality of protrusions 221 corresponds one-to-one; the contact mechanism includes a stationary contact structure 31 and a moving contact structure 32, the stationary contact structure 31 being fixed on the upper cover 12; the moving contact structure 32 being slidably disposed within the housing, the first end having a closed position abutting against the stationary contact structure 31 and an open position separating from the stationary contact structure 31; when the rotating member 22 is in the first rotational position, the second end of at least one set of the moving contact structures 32 abuts against the corresponding protrusion 221, and the first end is in the closed position; when the rotating member 22 is in the second rotational position, the second end of at least one set of the moving contact structures 32 is separated from the corresponding protrusion 221, and the first end is in the open position.

[0035] For a set of contact mechanisms and corresponding bosses 221, when the rotating member 22 is in the first rotational position, the moving contact structure 32 is in the closed position; when the rotating member 22 is in the second rotational position, the moving contact structure 32 is in the open position. Therefore, the switching between the closed and open states of the contact mechanism can be achieved simply by driving the rotating member 22 to rotate through the first driving component. That is, during the transition between the closed and open states, only a single action is needed to stably maintain the current state. In systems with extremely high response speed requirements, the signal switching action can be completed quickly and accurately, greatly improving the system's instantaneous response capability. Furthermore, it does not rely on continuous power consumption to maintain the contact state, thereby significantly reducing the overall energy consumption level and achieving efficient energy utilization and saving effects. Since the maintenance of the contact state does not depend on continuous power input, it effectively avoids state changes that may be caused by power fluctuations or faults, ensuring the high stability of the contact mechanism during long-term operation, reducing maintenance needs caused by equipment failure or performance degradation, reducing the inconvenience and cost caused by frequent maintenance or replacement of parts, and effectively extending the service life of the equipment.

[0036] In a specific implementation, the boss 221 is provided with guide slopes on both sides along the circumferential direction. When the rotating member 22 rotates, the guide slopes enable the moving contact structure 32 to slide smoothly up or down from the boss 221, effectively reducing the frictional resistance between the moving contact structure 32 and the boss 221, thereby reducing the wear and energy loss that may occur during the sliding process, and ensuring that the moving contact structure 32 can maintain a stable motion trajectory and contact pressure during the sliding process.

[0037] Since multiple bosses 221 are arranged sequentially and at intervals along the axial direction of the rotating member 22, each boss 221 controls the closing or opening of a set of contact mechanisms when the rotating member 22 rotates. Because multiple bosses 221 are arranged circumferentially around the rotating member 22, as the rotating member 22 rotates to different angular positions, different bosses 221 will sequentially engage with the contact mechanisms, thereby triggering the closing or opening of different contact mechanisms. This allows for flexible and precise control of the relay's closing and opening states under different timing and logic conditions according to actual needs. It enables precise control of multiple different timing and logic closing and opening states of the relay, providing strong support for the optimized design and efficient operation of electrical control systems.

[0038] In one embodiment, the driving mechanism further includes a second driving component 23. Under the drive of the second driving component 23, the rotating member 22 has a first fixed position and a second fixed position that translates axially. When the rotating member 22 is in the first fixed position, the first end of the moving contact structure 32 has a closed position that abuts against the stationary contact structure 31 and a disconnected position that separates from the stationary contact structure 31. When the rotating member 22 is in the second fixed position, the second end of the moving contact structure 32 and the corresponding boss 221 are axially spaced apart, and the first end of the moving contact structure 32 has a powered-down position that separates from the stationary contact structure 31.

[0039] When the rotating member 22 is in the first fixed position, it can rotate under the drive of the first driving component, so that the second end of the moving contact structure 32 abuts or separates from the boss 221. The first end of the moving contact structure 32 has a closed position abutting against the stationary contact structure 31 and an open position separating from the stationary contact structure 31, thereby realizing the closing or opening of the contact mechanism and ensuring the normal operation of the relay. In an emergency, the rotating member 22 can be translated along the axial direction and stop in the second fixed position, so that the second end of the moving contact 325 can directly and quickly disengage from the boss 221, and the first end of the moving contact structure 32 is separated from the stationary contact structure 31 and is in the energized position, thereby realizing the rapid disconnection function of the relay in an emergency. This not only ensures the rapid response of the relay in an emergency, but also greatly improves the safety and reliability of the system.

[0040] In one embodiment, the base 11 has two side plates 111 along the axial direction of the rotating member 22, each provided with a first bearing 112; the rotating member 22 includes a key shaft 222 and a cam shaft 223, the two ends of the key shaft 222 are respectively connected to the two first bearings 112, and are rotatably connected to the side plates 111 through the first bearings 112; the cam shaft 223 is sleeved on the outer periphery of the key shaft 222, slides relative to the key shaft 222 along the axial direction, and rotates synchronously with the key shaft 222, and the boss 221 is provided on the outer periphery of the cam shaft 223.

[0041] The first bearing 112 enables a rotatable connection between the key shaft 222 and the base 11. The key shaft 222 and the cam shaft 223 enable the key shaft 222 to drive the cam shaft 223 to rotate synchronously, allowing the first drive assembly to drive the cam shaft 223 to rotate. At the same time, the cam shaft 223 and the key shaft 222 can slide relative to each other in the axial direction, facilitating the cam shaft 223 to translate along the axial direction under the action of the second drive assembly 23.

[0042] In a specific embodiment, a locking block 2221 protrudes from the outer periphery of the key shaft 222, and the locking block 2221 extends axially; a first locking groove is provided on the inner wall of the cam shaft 223, and the first locking groove extends axially; when the key shaft 222 and the cam shaft 223 are assembled, the first locking block 2221 and the first locking groove form a sliding fit along the axial direction of the key shaft 222, which not only ensures that the cam shaft 223 and the key shaft 222 can rotate synchronously, that is, the two always maintain a consistent angular velocity during rotation, thereby ensuring the accuracy and continuity of power transmission; at the same time, it also enables the cam shaft 223 and the key shaft 222 to slide relative to each other in the axial direction, thereby realizing the functional requirement that the cam shaft 223 and the key shaft 222 can both rotate synchronously and slide relative to each other.

[0043] In a specific embodiment, the two side plates 111 of the base 11 along the axial direction of the rotating member 22 are detachably connected to the base 11 by fasteners such as screws.

[0044] In one embodiment, the first drive assembly includes a first drive member 211 and a gear assembly 212; the first drive member 211 is fixed inside the base 11; the gear assembly 212 includes a drive wheel 2121, an intermediate gear 2122 and a driven wheel 2123, the drive wheel 2121 is fixed on the drive shaft of the first drive member 211; the intermediate gear 2122 is rotatably connected inside the base 11 and is drive-connected to the drive wheel 2121; the driven wheel 2123 is fixed on the key shaft 222 and is drive-connected to the intermediate gear 2122.

[0045] The intermediate gear 2122 of the gear assembly 212 compensates for the spatial gap between the driving wheel 2121 and the driven wheel 2123, ensuring the continuity and efficiency of the power transmission path. Driven by the first driving member 211, the driving wheel 2121 drives the intermediate gear 2122 to rotate, which in turn drives the driven wheel 2123 to rotate, thereby realizing the rotation of the key shaft 222. Since the camshaft 223 rotates synchronously with the key shaft 222, when the key shaft 222 is driven to rotate, the camshaft 223 also rotates synchronously. During this process, the rotating member 22 can achieve smooth and rapid switching between the first rotation position and the second rotation position.

[0046] In a specific implementation, the inner wall of the driven wheel 2123 is provided with a second locking groove 21231, which extends axially. When the key shaft 222 is assembled with the cam shaft 223, the first locking block 2221 engages with the first locking groove, ensuring that the driven wheel 2123 and the key shaft 222 can rotate synchronously, that is, the two always maintain the same angular velocity during rotation, thereby ensuring the accuracy and continuity of power transmission.

[0047] In a specific embodiment, a connecting block 113 protrudes from the inner wall of the base 11 on one side of the gear assembly 212. The connecting block 113 and the side plate 111 near the gear assembly 212 are spaced apart and form a receiving cavity. The intermediate gear 2122 is disposed in the receiving cavity and is rotatably connected to the connecting block 113, thereby realizing the installation of the intermediate gear 2122.

[0048] Specifically, the first driving component 211 is a servo motor.

[0049] In one embodiment, the second drive assembly 23 includes a second drive member 231, a connecting rod assembly 232, and a shift fork assembly 233; the second drive member 231 is fixed inside the base 11; the connecting rod assembly 232 includes a rocker arm 2321 and a connecting rod 2322, one end of the rocker arm 2321 is fixed to the output shaft of the second drive member 231; one end of the connecting rod 2322 is fixedly connected to the other end of the rocker arm 2321; the shift fork assembly 233 is sleeved on the outer periphery of the camshaft 223 and rotatably connected to the camshaft 223; and is fixedly connected to the other end of the connecting rod 2322; under the drive of the second drive member 231, the shift fork assembly 233 is adapted to drive the camshaft 223 to move away from the gear assembly 212.

[0050] With the rocker arm 2321 in place, when the output shaft of the second drive unit 231 rotates, the rotational power is converted into the swing motion of the rocker arm 2321. The swing of the rocker arm 2321 then drives the connecting rod 2322 to move away from the gear assembly 212 along a preset trajectory, thereby driving the shift fork assembly 233 to move. Since the shift fork assembly 233 is connected to the camshaft 223, as the shift fork assembly 233 moves, the camshaft 223 is also driven, moving smoothly in the same direction away from the gear assembly 212, ultimately achieving the emergency disconnection of the relay.

[0051] In a specific embodiment, the second driving member 231 and the first driving member 211 are spaced apart along the axial direction of the key shaft 222 and are located on the side away from the gear assembly 212.

[0052] Specifically, the second driving component 231 is a servo motor.

[0053] In one embodiment, the outer periphery of the camshaft 223 is provided with a keyway, and the second drive assembly 23 further includes a first snap ring 234 and a second bearing 235; the first snap ring 234 is disposed in the keyway; the second bearing 235 is disposed on the side of the first snap ring 234 away from the gear assembly 212 and is sleeved on the outer periphery of the camshaft 223; the shift fork assembly 233 is connected to the camshaft 223 through the second bearing 235.

[0054] By setting the second bearing 235, a rotatable connection can be achieved between the camshaft 223 and the shift fork assembly 233, ensuring that the camshaft 223 can rotate freely under the drive of the first drive assembly. At the same time, the shift fork assembly 233 can also drive the camshaft 223 to perform smooth sliding motion in the axial direction under the drive of the second drive member 231. This ensures that the two action modes can operate in coordination without interference, greatly improving the flexibility and functionality of the system. Furthermore, by setting the second snap ring 323, the second bearing 235 is effectively limited in the axial direction, preventing unnecessary axial movement during operation. This not only ensures the precise positioning of the second bearing 235 but also effectively extends its service life, providing a guarantee for the long-term stable operation of the entire system.

[0055] In one embodiment, the shift fork assembly 233 has two sets of limiting members 2331 protruding from one side of the base plate near the base 11. The two sets of limiting members 2331 are arranged on both sides of the shift fork assembly 233 along the circumference of the shift fork assembly 233 and abut against the base plate of the base 11.

[0056] By setting two sets of limiting members 2331, any unexpected rotation of the shift fork assembly 233 in the circumferential direction is prevented, effectively avoiding transmission errors or system failures caused by accidental rotation of the shift fork assembly 233. This not only improves the circumferential stability of the shift fork assembly 233, but also further consolidates the overall structural stability and reliability of the second drive assembly 23.

[0057] In one embodiment, the shift fork assembly 233 includes a first shift fork 2332 and a second shift fork 2333, which are arranged sequentially along the axial direction. The first shift fork 2332 is connected to the connecting rod 2322, and the second shift fork 2333 is detachably connected to the first shift fork 2332.

[0058] The arrangement of the first shift fork 2332 and the second shift fork 2333 enhances the stability of the connection between the shift fork assembly 233 and the second bearing 235. This not only effectively fixes and limits the second bearing 235, ensuring its precise position and stable movement during operation, but also significantly improves the reliability and durability of the entire transmission system. The arrangement of the first shift fork 2332 and the second shift fork 2333 also facilitates the installation and disassembly of the shift fork assembly 233 and the second bearing 235, thereby improving work efficiency.

[0059] In a specific implementation, the first shift fork 2332 has three protruding first protrusions 2334, which are spaced apart circumferentially, and each first protrusion 2334 has a first through hole; the second shift fork 2333 has three protruding second protrusions 2335, which are spaced apart circumferentially, and each second protrusion 2335 has a second through hole; the three first protrusions 2334 and the three second protrusions 2335 are arranged in a one-to-one correspondence, and fasteners such as studs pass through the second through holes and connect with the first through holes. The first shift fork 2332 and the second shift fork 2333 are detachably connected; the first protrusion 2334 and the second protrusion 2335 set near the base plate of the base 11 are combined to form a limiting member 2331; the connecting rod 2322 is connected to the first protrusion 2334 near the upper cover 12 of the first shift fork 2332, and the radial dimension of the first protrusion 2334 is larger than the radial dimension of the boss 221, which effectively prevents the connecting rod 2322 from interfering with the boss 221 on the camshaft 223 and ensures the smooth operation of the overall structure.

[0060] In one embodiment, the upper cover 12 is provided with a baffle 121, which is disposed between two adjacent stationary contact structures 31.

[0061] By setting a baffle 121 between two adjacent stationary contact structures 31, it is possible not only to isolate adjacent stationary contacts during electrical connection and prevent electric arcs from jumping directly between them, but also to reduce the generation and duration of electric arcs. This ensures that while not interfering with normal current conduction, it can block potential electric arc paths to the maximum extent, thereby improving the anti-arc resistance between contacts.

[0062] In a specific embodiment, the upper cover 12 is provided with a through hole, and the stationary contact structure 31 includes a stationary contact, a fastener and a fixing rod. The stationary contact is located on the side of the upper cover 12 near the base 11. One end of the fixing rod is fixed to the stationary contact, and the other end passes through the through hole and is fixed to the fastener. The specific fastener can be a nut.

[0063] In a specific implementation, the baffle 121 is a cross-shaped barrier.

[0064] In one embodiment, the upper cover 12 is provided with an insulating cover 13 on the side near the base 11. The insulating cover 13 has a mounting hole. The moving contact structure 32 includes a bushing 321, a push rod 322, a moving contact 325, a first elastic element, and a second elastic element. The bushing 321 is fixed in the mounting hole. The push rod 322 is slidably inserted into the bushing 321, and the top of the push rod 322 is provided with a second retaining spring 323, and the bottom of the push rod 322 is provided with a third retaining spring 324. The moving contact 325 is sleeved on the push rod 322 and is located between the second retaining spring 323 and the bushing 321. The first elastic element is provided on the side of the bushing 321 near the moving contact 325, with one end connected to the moving contact 325 and the other end connected to the bushing 321. The second elastic element is provided on the side of the bushing 321 near the third retaining spring 324, with one end connected to the bushing 321 and the other end connected to the third retaining spring 324.

[0065] The push rod 322 enables the movable contact 325 to slide on the insulating cover 13, ensuring that the movable contact 325 can move flexibly along a predetermined path and improving the dynamic response performance of the entire contact mechanism. The second snap ring 323 effectively secures the movable contact 325, preventing it from accidentally detaching from the push rod 322 under external force, thus ensuring the continuity and safety of the contact mechanism during operation. The first elastic element ensures the contact area between the movable contact 325 and the stationary contact structure 31, thereby... The reliability and conductivity of the electrical connection are improved. By setting the second elastic element, the necessary return force is provided for the moving contact 325, so that the moving contact 325 can smoothly return to its initial position after completing the contact action, thereby ensuring that the contact mechanism can complete each closing and opening action efficiently and accurately. Through the coordinated action of the push rod 322, the second snap ring 323, the first elastic element and the second elastic element, we not only achieve stable sliding and reliable fixing of the moving contact 325, but also optimize the contact performance and return mechanism between contacts, ensuring the safe and efficient operation of the electrical connection system.

[0066] Specifically, the insulating cover 13 may be made of ceramic.

[0067] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A relay, characterized in that, include: The housing includes a base (11) and a top cover (12) that are connected to each other; A driving mechanism is located inside the base (11); the driving mechanism includes a first driving component and a rotating component (22); the rotating component (22) is rotatably disposed inside the base (11), and a plurality of protrusions (221) are provided on its outer periphery; the plurality of protrusions (221) are arranged sequentially at intervals along the axial direction of the rotating component (22) and are arranged around the circumference of the rotating component (22); under the drive of the first driving component, the rotating component (22) has a first rotational position and a second rotational position that rotates around the circumference; Multiple sets of contact mechanisms are arranged sequentially at intervals along the axial direction of the rotating member (22); and the multiple sets of contact mechanisms correspond one-to-one with the multiple bosses (221); the contact mechanism includes a stationary contact structure (31) and a moving contact structure (32), the stationary contact structure (31) is fixed on the upper cover (12); the moving contact structure (32) is slidably arranged in the housing, and the first end has a closed position that abuts against the stationary contact structure (31) and a disconnected position that separates from the stationary contact structure (31); When the rotating member (22) is in the first rotational position, the second end of at least one set of moving contact structures (32) abuts against the corresponding boss (221), and the first end is in the closed position; when the rotating member (22) is in the second rotational position, the second end of at least one set of moving contact structures (32) separates from the corresponding boss (221), and the first end is in the open position.

2. The relay according to claim 1, characterized in that, The driving mechanism further includes a second driving component (23), under the drive of the second driving component (23), the rotating member (22) has a first fixed position and a second fixed position that translates axially; When the rotating member (22) is in the first fixed position, the first end of the moving contact structure (32) has a closed position that abuts against the stationary contact structure (31) and a disconnected position that separates from the stationary contact structure (31); When the rotating member (22) is in the second fixed position, the second end of the moving contact structure (32) and the corresponding boss (221) are spaced apart along the axial direction, and the first end of the moving contact structure (32) has a power-down position that is separated from the stationary contact structure (31).

3. The relay according to claim 2, characterized in that, The base (11) has two side plates (111) along the axial direction of the rotating member (22) with first bearings (112) on each side plate (111); the rotating member (22) includes a key shaft (222) and a cam shaft (223). The two ends of the key shaft (222) are respectively connected to the two first bearings (112) and are rotatably connected to the side plate (111) through the first bearings (112); the cam shaft (223) is sleeved on the outer periphery of the key shaft (222), slides relative to the key shaft (222) along the axial direction, and rotates synchronously with the key shaft (222); the boss (221) is provided on the outer periphery of the cam shaft (223).

4. The relay according to claim 3, characterized in that, The first driving component includes: The first driving component (211) is fixed inside the base (11); The gear assembly (212) includes a driving gear (2121), an intermediate gear (2122), and a driven gear (2123). The driving gear (2121) is fixed on the drive shaft of the first driving member (211). The intermediate gear (2122) is rotatably connected in the base (11) and is driven by the driving gear (2121). The driven gear (2123) is fixed on the key shaft (222) and is driven by the intermediate gear (2122).

5. The relay according to claim 4, characterized in that, The second driving component (23) includes: The second driving component (231) is fixed inside the base (11); The linkage assembly (232) includes a rocker arm (2321) and a connecting rod (2322), one end of the rocker arm (2321) being fixed to the output shaft of the second drive member (231); one end of the connecting rod (2322) being fixedly connected to the other end of the rocker arm (2321); The shift fork assembly (233) is sleeved on the outer periphery of the camshaft (223) and rotatably connected to the camshaft (223); and is fixedly connected to the other end of the connecting rod (2322); under the drive of the second drive member (231), the shift fork assembly (233) is adapted to drive the camshaft (223) to move away from the gear assembly (212).

6. The relay according to claim 5, characterized in that, The outer periphery of the camshaft (223) is provided with a keyway, and the second drive assembly (23) further includes: A first retaining ring (234) is disposed within the keyway; The second bearing (235) is disposed on the side of the first snap ring (234) away from the gear assembly (212) and sleeved on the outer periphery of the camshaft (223); the shift fork assembly (233) is connected to the camshaft (223) through the second bearing (235).

7. The relay according to claim 5, characterized in that, The shift fork assembly (233) has two sets of limiting members (2331) protruding from one side of the base plate of the base (11). The two sets of limiting members (2331) are arranged on both sides of the shift fork assembly (233) along the circumference of the shift fork assembly (233) and both abut against the base plate of the base (11).

8. The relay according to claim 5, characterized in that, The shift fork assembly (233) includes a first shift fork (2332) and a second shift fork (2333), which are arranged sequentially along the axial direction. The first shift fork (2332) is connected to the connecting rod (2322), and the second shift fork (2333) is detachably connected to the first shift fork (2332).

9. The relay according to any one of claims 1 to 8, characterized in that, The upper cover (12) is provided with a baffle (121), which is disposed between two adjacent stationary contact structures (31).

10. The relay according to any one of claims 1 to 8, characterized in that, An insulating cover (13) is provided on the side of the upper cover (12) near the base (11), and the insulating cover (13) has a mounting hole. The moving contact structure (32) includes: A bushing (321) is fixed inside the mounting hole; The push rod (322) is slidably inserted into the bushing (321), and the top of the push rod (322) is provided with a second retaining ring (323) and the bottom is provided with a third retaining ring (324); The moving contact (325) is sleeved on the top rod (322) and located between the second snap ring (323) and the bushing (321); The first elastic element is disposed on the side of the bushing (321) near the moving contact (325), with one end connected to the moving contact (325) and the other end connected to the bushing (321); The second elastic element is disposed on the side of the bushing (321) near the third retaining ring (324), with one end connected to the bushing (321) and the other end connected to the third retaining ring (324).

Images