Transmission device of a double power transfer switch and double power transfer switch

Abstract

A kind of transmission of double power transfer switch, including motion conversion mechanism and automatic driving mechanism;Motion conversion mechanism includes power input piece, transmission disc and power output piece connected in turn and opposite fixed, the front and rear ends of transmission disc are equipped with first sliding groove and second sliding groove respectively;Automatic driving mechanism includes first drive assembly and second drive assembly, the side of first sliding groove is equipped with first transmission shaft, first sliding groove is equipped with second transmission shaft slidably, the front end of transmission disc is equipped with the first transmission part that is coaxial with transmission disc rotation, first transmission part is connected with second transmission shaft;The side of second sliding groove is equipped with third transmission shaft, second sliding groove is equipped with fourth transmission shaft slidably;The rear end of transmission disc is equipped with the second transmission part that is coaxial with transmission disc rotation, second transmission part is connected with fourth transmission shaft.Compared with prior art, the overall structure of transmission of the application is compact, has stronger use stability when using.

Description

Technical Field

[0001] This invention relates to the field of dual power supply switch technology, and more specifically to a transmission device for a dual power supply transfer switch and a dual power supply transfer switch itself. Background Technology

[0002] Dual-power switching devices employ a primary and backup dual-power supply system to ensure that if one power source fails and loses power, the other power source can be immediately put into use, thus guaranteeing power continuity. Existing dual-power transfer switches have a drive mechanism and a motion switching mechanism, which work together to form the transmission device of the dual-power transfer switch.

[0003] Existing transmission devices have complex structures and numerous components, resulting in a non-compact overall structure for dual-power transfer switches. Furthermore, their operational stability is relatively poor. For example, Chinese patent "CN 113241268 A" discloses a dual-power transmission mechanism and its dual-power switch, which includes an electromagnet drive disc, a drive spring disc, a compression spring, a sliding rod, and a main body disc. When switching power, if the left electromagnet is energized, the drive electromagnet drive disc rotates to the left, thereby causing the drive spring disc to rotate synchronously. The rotation of the drive spring disc compresses the left compression spring, shortening the length of the sliding rod. The compression spring stores energy before passing the dead point; after passing the dead point, the energy is released. When the stored energy is released, it drives the drive body disc to rotate to the left. The drive body disc, through a rotating shaft, drives the dual-power switch body to rotate to the left, thus achieving closing. When the right electromagnet is energized, the principle is the same. In the above structure, during the initial stage of spring energy release, the sliding end of the sliding rod needs to slide a certain distance in the arc-shaped groove before it can drive the drive body turntable to rotate. This not only reduces the elastic potential energy of the spring, but also, because the sliding end of the sliding rod needs to slide a certain distance in the arc-shaped groove before driving the drive body turntable to rotate, the rotation angle of the drive body turntable becomes smaller, i.e., the rotation angle of the dual power switch becomes smaller, which is detrimental to power switching. Furthermore, the power switching process described above relies on the spring; when the performance of the spring is substandard, it will affect its operational stability and power switching effect. Summary of the Invention

[0004] To address the problems of non-compact overall structure and unstable operation of existing dual-power transfer switches, this invention provides a transmission device for a dual-power transfer switch. This transmission device for the dual-power transfer switch has a compact overall structure and exhibits strong operational stability.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows.

[0006] A transmission device for a dual power supply changeover switch includes a motion switching mechanism and an automatic drive mechanism;

[0007] The motion conversion mechanism includes a power input component, a transmission disk, and a power output component connected in sequence and relatively fixed. The front and rear ends of the transmission disk are respectively provided with a first sliding groove and a second sliding groove. The automatic drive mechanism includes a first drive assembly for driving the transmission disk to rotate clockwise and a second drive assembly for driving the transmission disk to rotate counterclockwise.

[0008] A first drive shaft is provided on the side of the first slide groove, and a second drive shaft is provided in the first slide groove. A first transmission component is provided at the front end of the transmission disk and rotates coaxially with the transmission disk. The first transmission component is connected to the second drive shaft.

[0009] A third drive shaft is provided on the side of the second slide groove, and a fourth drive shaft is provided in the second slide groove; a second drive component is provided at the rear end of the drive disc and rotates coaxially with the drive disc, and the second drive component is connected to the fourth drive shaft;

[0010] The transmission disk can achieve a first state, a second state, and a third state by rotation. The first driving component cooperates with the first or second transmission shaft to drive the rotating disk to rotate clockwise from the third state to the first state or from the first state to the second state. The second driving component cooperates with the third or fourth transmission shaft to drive the rotating disk to rotate counterclockwise from the second state to the first state or from the first state to the third state.

[0011] Furthermore, one end of the first slide groove is positioned opposite to the third drive shaft, and one end of the second slide groove is positioned opposite to the first drive shaft.

[0012] Furthermore, the first slide groove and the first drive shaft are located near the outer wall of the drive disc, and the end of the first slide groove near the first drive shaft is symmetrically arranged with the first drive shaft.

[0013] Furthermore, the first drive assembly includes a first drive member and a first drive device for driving the first drive member to move. The first drive member is provided with a first hook groove, which cooperates with a first transmission shaft and a second transmission shaft respectively. The second drive assembly includes a second drive member and a second drive device for driving the second drive member to move. The second drive member is provided with a second hook groove, which cooperates with a third transmission shaft and a fourth transmission shaft respectively.

[0014] Furthermore, in the first state, both the first drive shaft and the second drive shaft are located in the first hook groove, with the first drive shaft being farther away from the hook portion of the first hook groove than the second drive shaft; both the third drive shaft and the fourth drive shaft are located in the second hook groove, with the third drive shaft being farther away from the hook portion of the second hook groove than the fourth drive shaft; one end of the first slide groove and the second slide groove are located in the first hook groove, and the other end is located above the top surface of the first drive member.

[0015] Furthermore, in the second state, the third drive shaft is located in the second hook groove, and the second slide groove is located above the top surface of the second drive member.

[0016] Furthermore, in the third state, the first drive shaft is located in the first hook groove, and the first slide is located above the top surface of the first drive member.

[0017] Furthermore, the top surface of the first driving member relative to the end of the first driving device is a first support surface, and the top surface of the second driving member relative to the end of the second driving device is a second support surface. Both the first support surface and the second support surface are planes. During the process of the transmission disk rotating from the second state to the first state, the fourth transmission shaft abuts against the second support surface, or during the process of the transmission disk rotating from the third state to the first state, the second transmission shaft abuts against the first support surface.

[0018] Furthermore, the front end of the transmission disc is provided with a first connecting hole, one end of the first transmission shaft is fixed to the first connecting hole, and the other end is exposed; the rear end of the transmission disc is provided with a second connecting hole, one end of the third transmission shaft is fixed to the second connecting hole, and the other end is exposed.

[0019] Furthermore, the end face of the power output component is provided with a third slide groove opposite to the first slide groove and a third connecting hole opposite to the first drive shaft. The third slide groove cooperates with the second drive shaft, and the third connecting hole cooperates with the first drive shaft.

[0020] Furthermore, the power output component is provided with a limiting cam, and the motion conversion mechanism includes a fourth limiting block and a second elastic reset component. One end of the fourth limiting block is limited to the limiting cam, and the other end is connected to the second elastic reset component. The second elastic reset component is used to drive the fourth limiting block to maintain the limiting engagement with the limiting cam.

[0021] Furthermore, the motion conversion mechanism also includes a support, with an inner cavity at the middle position of the support, and the power input component is located in the inner cavity and can rotate relative to the inner cavity.

[0022] Furthermore, the outer wall of the power input component is provided with a first limiting block, and the two sides of the support are respectively provided with a second limiting block and a third limiting block, and the second limiting block and the third limiting block are both limited and engaged with the first limiting block.

[0023] Furthermore, a first elastic reset member is provided between the second drive shaft and the fourth drive shaft to give them a tendency to move closer to each other.

[0024] Furthermore, the first elastic reset element is a torsion spring.

[0025] Furthermore, a fifth connecting hole is provided in the middle of the transmission disk, which passes through the front and rear ends of the transmission disk, and the first elastic reset member is disposed in the fifth connecting hole; the two ends of the first elastic reset member are respectively connected to the first transmission member and the second transmission member.

[0026] Furthermore, the end face of the power input component is provided with a fourth slide groove opposite to the second slide groove and a fourth connecting hole opposite to the third drive shaft. The fourth slide groove cooperates with the fourth drive shaft, and the fourth connecting hole cooperates with the third drive shaft.

[0027] Furthermore, the first and second slides are arc-shaped and are arranged concentrically with the transmission disk.

[0028] Furthermore, the first and second slides are inclined linear shapes.

[0029] A dual-power transfer switch includes a housing and a manual drive mechanism and a locking mechanism disposed within the housing. The manual drive mechanism includes a driving gear and a driven gear that mesh with each other, and also includes a transmission device disposed within the housing, the transmission device being the aforementioned transmission device. The driven gear is connected to and rotates coaxially with a power input component. The locking mechanism is used to cooperate with the power input component to control its rotation. The circuit switching device is connected to and rotates coaxially with a power output component.

[0030] Compared with the prior art, the beneficial effects of the present invention are as follows: The transmission device of the dual power transfer switch is provided with a transmission disk and a power output component connected by a first transmission shaft and a second transmission shaft, and cooperating with a first drive assembly; a third transmission shaft and a fourth transmission shaft connect the transmission disk and a power input component, and cooperate with a second drive assembly, thereby realizing the switching of the transmission disk between the first, second, and third states, that is, the switching of the motion conversion mechanism between the three states, ultimately realizing the power switching of the dual power transfer switch. In the above structure, the four transmission shafts not only connect the components of the motion conversion mechanism, but also play a transmission role, which makes the overall structure of the motion conversion mechanism compact and has strong operational stability. Attached Figure Description

[0031] Figure 1 Exploded perspective view of a dual power supply transfer switch;

[0032] Figure 2 A perspective view of the disassembled structure of the transmission device;

[0033] Figure 3 This is a perspective view of the transmission disc near the power output component.

[0034] Figure 4 A perspective view of the power output component near the transmission disc;

[0035] Figure 5 This is a perspective view of the transmission disc on the side closest to the power input component;

[0036] Figure 6 A perspective view of the power output component near the transmission disc;

[0037] Figure 7 This is a schematic diagram of the transmission device in the zero position (including the schematic diagram of the corresponding transmission components);

[0038] Figure 8 This is a schematic diagram of the transmission device in position I (including schematic diagrams of the corresponding transmission components);

[0039] Figure 9 This is a schematic diagram of the transmission device in position II (including a schematic diagram of the corresponding transmission components).

[0040] Figure 10 This is a schematic diagram of the state of the transmission device after it rotates from position I to position 0 (including the state diagram of the corresponding transmission components);

[0041] Figure 11 This is a schematic diagram of the state of the transmission device after it rotates from position I to position 0 (including the state diagram of the corresponding transmission components);

[0042] 1. Housing; 11. Bracket; 12. Fourth limiting block; 13. Second elastic reset component;

[0043] 2. Manual drive mechanism; 21. Drive gear; 22. Driven gear;

[0044] 3. Motion conversion mechanism; 31. Power input component; 311. Rotating shaft; 312. Fourth connecting hole; 313. Fourth slide groove; 314. First limiting block; 32. Transmission disc; 321. First connecting hole; 322. First slide groove; 323. Second connecting hole; 324. Second slide groove; 325. Fifth connecting hole; 33. Power output component; 331. Third connecting hole; 332. Third slide groove; 333. Limiting cam; 34. First transmission component; 341. Seventh connecting hole; 35. Second transmission component; 351. Eighth connecting hole; 36. First elastic reset component; 37. Transmission shaft; 371. First transmission shaft; 372. Second transmission shaft; 373. Third transmission shaft; 374. Fourth transmission shaft; 38. Support; 381. Inner cavity; 382. Second limiting block; 383. Third limiting block;

[0045] 3a. Shaft hole; 3b. Blind hole; 3c. Fixed shaft; 3d. Sixth connecting hole;

[0046] 4. Automatic drive mechanism; 41. First drive assembly; 411. First electromagnet; 412. First moving iron core; 413. First drive component; 4131. First hook groove; 4132. First support surface; 42. Second drive assembly; 421. Second electromagnet; 422. Second moving iron core; 423. Second drive component; 4231. Second hook groove; 4232. Second support surface;

[0047] 5. Locking mechanism. Detailed Implementation

[0048] In the description of this invention, it should be understood that the terms "inner" and "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this invention 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 invention.

[0049] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "fixation," 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 explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0050] Furthermore, those skilled in the art can combine and integrate the different embodiments or examples described herein, as well as the features of the different embodiments or examples, without contradiction.

[0051] The following is in conjunction with the appendix Figure 1-11 The technical solution of the present invention will be further described below.

[0052] A dual power supply transfer switch, such as Figure 1As shown, the enclosure 1 includes a manual drive mechanism 2, a motion conversion mechanism 3, an automatic drive mechanism 4, a locking mechanism 5, and a circuit switching device (not shown) disposed within the enclosure 1. A bracket 11 is provided on the inner wall of the enclosure 1. The motion conversion mechanism 3 is connected to the bracket 11 and can rotate around the bracket 11. The manual drive mechanism 2 and the automatic drive mechanism 4 drive the motion conversion mechanism 3 to rotate on the bracket 11, thereby realizing the power switching of the dual power switch. The locking mechanism 5 can restrict or unlock the rotation of the motion conversion mechanism 3. In the above mechanism, the manual drive mechanism 2 includes a meshing drive gear 21 and a driven gear 22 coaxially arranged with the power input / output component 31. The drive gear 21 is used to input power in manual mode, and the driven gear 22 is used to transmit power to the power input component 31. Their connection is a common connection method in the art. The locking mechanism 5 can adopt a common structure in the art, which will not be described in detail here.

[0053] like Figure 2 As shown, the automatic drive mechanism 4 includes a first drive assembly 41 and a second drive assembly 42. The first drive assembly 41 includes a first electromagnet 411, a first moving iron core 412, and a first drive member 413 connected in sequence (the first moving iron core 412 and the first drive member 413 constitute the first drive device). One end of the first moving iron core 412 is slidably connected to the first electromagnet 411, and the other end is connected to the first drive member 413 so that the two are relatively fixed. The first drive member 413 is provided with a first hook groove 4131. The end of the first drive member 413 relative to the first moving iron core 412 is... The top surface of the component is the first support surface 4132; the second drive assembly 42 includes a second electromagnet 421, a second moving iron core 422, and a second drive member 423 connected in sequence (the second moving iron core 422 and the second drive member 423 constitute the second drive device). One end of the second moving iron core 422 is slidably connected to the second electromagnet 421, and the other end is connected to the second drive member 423 so that the two are relatively fixed. The second drive member 423 is provided with a second hook groove 4231, and the top surface of the end of the second drive member 423 relative to the second moving iron core 422 is the second support surface 4232. In use, the first electromagnet 411 and the second electromagnet 421 can drive the corresponding moving iron core to slide, thereby driving the corresponding drive member to move. The drive member pulls the transmission shaft 37 on the motion conversion mechanism 3 to rotate through the hook part of its corresponding hook groove, thereby realizing power switching.

[0054] like Figure 2As shown, the motion conversion mechanism 3 includes a power input component 31, a transmission disk 32, and a power output component 33, which are connected sequentially and relatively fixed. The power input component 31 has a rotating shaft 311, the transmission disk 32 has a shaft hole 3a that connects to the rotating shaft 311, and the power output component 33 also has a shaft hole 3a that connects to the rotating shaft 311. The transmission disk 32 and the power output component 33 are connected to the rotating shaft 311 of the power input component 31 through the shaft hole 3a. The outer side wall at the end of the rotating shaft 311 has a flat surface that engages with the shaft hole 3a of the power output component 33, thereby allowing the power input component 31 to drive the power output component 33 to rotate in the same direction via the rotating shaft 311. Figure 2-6 As shown, the transmission disc 32 has a blind hole 3b at both its front and rear ends. Both the power output component 33 and the power input component 31 have a fixed shaft 3c corresponding to the blind hole 3b. During assembly, the fixed shaft 3c is engaged in the blind hole 3b, thus fixing the power input component 31, transmission disc 32, and power output component 33 relatively, making the assembly more stable. The end face of the power input component 31 relative to the transmission disc 32 is connected to the manual drive mechanism 2. When the manual mechanism moves, it drives the power input component 31 to move in the same direction, thereby causing the transmission disc 32 and power output component 33 to rotate to achieve power switching. The connection between the power input component 31 and the manual drive mechanism 2 is a common method in the art and will not be described again.

[0055] like Figure 3 , 5 As shown, the front end of the transmission disk 32 is provided with a first connecting hole 321 and a first sliding groove 322, and the rear end is provided with a second connecting hole 323 and a second sliding groove 324. The first sliding groove 322 and the second sliding groove 324 are arc-shaped and concentric with the transmission disk 32. The first connecting hole 321 is located beside the first sliding groove 322, and is offset from the fan-shaped area formed by the two ends of the first sliding groove 322 and the center of the transmission disk 32. The end of the first sliding groove 322 near the first connecting hole 321 is opposite to the second connecting hole 323, and the end of the second sliding groove 324 near the second connecting hole 323 is opposite to the first connecting hole 321. That is, the first connecting hole 321, the first sliding groove 322 and the second connecting hole 323, the second sliding groove 324 are symmetrically arranged about the center plane of the transmission disk 32. Figure 4 , 6 As shown, the power output component 33 is provided with a third connecting hole 331 and a third sliding groove 332 corresponding to the first connecting hole 321 and the first sliding groove 322, and the power input component 31 is provided with a fourth connecting hole 312 and a fourth sliding groove 313 corresponding to the second connecting hole 323 and the second sliding groove 324. Figure 2As shown, a first drive shaft 371 and a second drive shaft 372 are provided between the transmission disc 32 and the power output component 33. The two ends of the first drive shaft 371 are respectively fixed in the first connecting hole 321 and the third connecting hole 331. The two ends of the second drive shaft 372 are respectively connected in the first sliding groove 322 and the third sliding groove 332 and can slide along the first sliding groove 322 and the second sliding groove 324. The middle position of the first drive shaft 371 and the second drive shaft 372 is exposed outside the hole groove. The first drive component 41 is provided at the bottom of the first drive shaft 371 and the second drive shaft 372, and the first hook groove 4131 of the first drive component 413 faces the middle position of the first drive shaft 371 and the second drive shaft 372. In use, by driving the first drive component 413 to move, the first drive shaft 371 or the second drive shaft 372 is pulled to rotate, thereby driving the transmission disc 32 to rotate clockwise. A third drive shaft 373 and a fourth drive shaft 374 are provided between the transmission disc 32 and the power input component 31. The two ends of the third drive shaft 373 are respectively fixed in the second connecting hole 323 and the fourth connecting hole 312. The two ends of the fourth drive shaft 374 are respectively connected in the second sliding groove 324 and the fourth sliding groove 313 and can slide along the second sliding groove 324 and the fourth sliding groove 313. The middle position of the third drive shaft 373 and the fourth drive shaft 374 is exposed outside the hole groove. The second drive component 42 is provided at the bottom of the third drive shaft 373 and the fourth drive shaft 374, and the second hook groove 4231 of the second drive component 423 faces the middle position of the third drive shaft 373 and the fourth drive shaft 374. In use, by driving the second drive component 423 to move, the third drive shaft 373 or the fourth drive shaft 374 is pulled to rotate, thereby driving the transmission disc 32 to rotate counterclockwise.

[0056] In the above structure, it should be noted that the first connecting hole 321 and the second connecting hole 323 do not need to be provided at both ends of the transmission disk 32. The first transmission shaft 371 and the third transmission shaft 373 can extend directly from the end face of the transmission disk 32, that is, the first transmission shaft 371 and the third transmission shaft 373 are integrally formed. The positional relationship between the first connecting hole 321, the first sliding groove 322 and the second connecting hole 323, the second sliding groove 324 is not limited to the above positional relationship. It can be adjusted as needed. Ultimately, as long as the first hook groove 4131 of the first driving member 413 can hook out the first transmission shaft 371 and the second transmission shaft 372, or the second hook groove 4231 of the second driving member 423 can hook out the third transmission shaft 373 and the fourth transmission shaft 374, the transmission disk 32 can be driven to rotate. In addition, the driving method of the first driving member 413 and the second driving member 423 described above can also adopt other methods, such as using a telescopic cylinder.

[0057] In the above structure, when the first electromagnet 411 and the second electromagnet 421 are not driving the corresponding driving components, the transmission disk 32 is in the first state (i.e., position 0). In this state, the first transmission shaft 371 and the second transmission shaft 372 are both located in the groove space of the first hook groove 4131, and the first transmission shaft 371 is farther away from the hook part of the first hook groove 4131 than the second transmission shaft 372. The end of the first slide groove 322 away from the first hook groove 4131 is located above the top surface of the first driving component 413, and the end of the second slide groove 324 away from the second hook groove 4231 is located above the top surface of the second driving component 423. At this time, the dual power supply switch is not connected to the power supply.

[0058] In the zero position state (as shown in the state diagram) Figure 7 As shown), when the first electromagnet 411 drives the first driving member 413 to move, the first hook groove 4131 of the first transmission member 34 pulls the second transmission shaft 372 to rotate clockwise, thereby driving the transmission disk 32 to rotate clockwise to the second state (position I, state diagram as shown). Figure 8 As shown), at this time, the dual power supply switch connects to the first power supply. In this state, the third drive shaft 373 is located in the second hook groove 4231, the second slide groove 324 is located above the top surface of the second drive member 423, and the fourth drive shaft 374 is located at the end of the second slide groove 324 near the second hook groove 4231, which is located above the top surface of the second drive member 423.

[0059] In the zero position, when the second electromagnet 421 drives the second transmission component 35 to move, the second hook groove 4231 of the second transmission component 35 pulls the fourth transmission shaft 374 to rotate counterclockwise, thereby driving the transmission disk 32 to rotate counterclockwise to the third position (position II, as shown in the state diagram). Figure 9 As shown), at this time, the dual power supply switch connects the second power supply. In this state, the third drive shaft 373 is located in the first hook groove 4131, the first slide groove 322 is located above the top surface of the first drive member 413, and the second drive shaft 372 is located at the end of the first slide groove 322 near the first hook groove 4131, which is located above the top surface of the first drive member 413.

[0060] The first electromagnet 411 drives the first driving element 413 to move, and the second electromagnet 421 drives the second driving element 423 to move, thereby realizing the mutual conversion between position 0, position 1, and position 2, specifically as follows:

[0061] 1. Power supply switches from position 0 to position 1.

[0062] When the first electromagnet 411 is energized, the first driving member 413 moves to the left. During this movement, the hook of the first hook groove 4131 pulls the second transmission shaft 372 to rotate clockwise, causing the transmission disk 32 to rotate counterclockwise. This, in turn, drives the motion conversion mechanism 3 to rotate clockwise, thereby switching the power supply to position I. When the power supply is switched to position I, the first electromagnet 411 is de-energized, and the first driving member 413 returns to its initial position.

[0063] 2. Power supply switches from position 1 to position 0.

[0064] When the second electromagnet 421 is energized, the second driving member 423 moves to the right. During this movement, because the fourth transmission shaft 374 is located above the top surface of the second driving member 423, the hook of the second hook groove 4231 pulls the third transmission shaft 373 to rotate counterclockwise, thereby causing the transmission disk 32 to rotate counterclockwise. This, in turn, drives the motion conversion mechanism 3 to rotate counterclockwise, thus switching the power supply to the zero position. When the power supply is switched to the zero position, the second electromagnet 421 is de-energized, and the second driving member 423 returns to its initial position.

[0065] It should be noted that during the power supply switching from position 1 to position 0, the second slide 324 rotates into the hook space of the second hook groove 4231. Additionally, the fourth drive shaft 374 contacts and slides relative to the second support surface 4232 of the second drive member 423. Under the action of the second support surface 4232, the fourth drive shaft 374 moves to the end of the second slide 324 away from the second hook groove 4231 (as shown in the schematic diagram). Figure 10 (As shown); when the second drive member 423 returns to the initial position, the fourth drive shaft 374 no longer contacts the second support surface 4232. Under the action of gravity, the fourth drive shaft 374 moves towards the end of the second groove 324 and closes to the end of the second hook groove 4231, that is, the second drive shaft 372 moves to the position of the 0 position.

[0066] 3. The power supply is switched from position 0 to position 2.

[0067] When the second electromagnet 421 is energized, the second driving member 423 moves to the right. During this movement, the hook of the second hook groove 4231 pulls the fourth transmission shaft 374 to rotate counterclockwise, thereby causing the transmission disk 32 to rotate counterclockwise. This, in turn, drives the motion conversion mechanism 3 to rotate counterclockwise, thus switching the power supply to position II. When the power supply is switched to position II, the second electromagnet 421 is de-energized, and the second driving member 423 returns to its initial position.

[0068] 4. Switch the power supply from position II to position 0.

[0069] When the first electromagnet 411 is energized, the first driving member 413 moves to the left. During this movement, because the second transmission shaft 372 is located above the top surface of the first driving member 413, the hook of the first hook groove 4131 pulls the first transmission shaft 371 to rotate clockwise, thereby causing the transmission disk 32 to rotate clockwise. This, in turn, drives the motion conversion mechanism 3 to rotate clockwise, ultimately switching the power supply to the zero position. When the power supply is switched to the zero position, the first electromagnet 411 is de-energized, and the first driving member 413 returns to its initial position.

[0070] It should be noted that during the power supply switching from position II to position 0, the first slide groove 322 rotates towards the hook groove space of the first hook groove 4131. Additionally, the second drive shaft 372 rotates and contacts the first support surface 4132 of the first drive member 413, resulting in relative sliding. Under the action of the first support surface 4132, the second drive shaft 372 moves to the end of the first slide groove 322 away from the first hook groove 4131 (as shown in the schematic diagram). Figure 11 (As shown); when the first driving member 413 returns to the initial position, the second drive shaft 372 no longer contacts the first support surface 4132. Under the action of gravity, the second drive shaft 372 moves towards the end of the first hook groove 4131 in the first slide groove 322, that is, the second drive shaft 372 moves to the position of the 0 position.

[0071] 5. Switch the power supply from position I to position II or from position II to position I.

[0072] The steps for switching the power supply from position I to position II are as follows: first perform the second step mentioned above, then perform the third step mentioned above; the steps for switching the power supply from position II to position I are as follows: first perform the fourth step mentioned above, then perform the first step mentioned above. The specific process will not be repeated here.

[0073] In the above structure, to ensure that the first driving member 413 and the second driving member 423 can return to their initial positions during the power switch from position I to position 0 or from position II to position 0, the first support surface 4132 and the second support surface 4232 are planar, and their lengths are just sufficient to allow the second drive shaft 372 and the fourth drive shaft 374 to slide along the corresponding support surfaces during the power switch from position I to position 0 or from position II to position 0. Furthermore, when the first driving member 413 and the second driving member 423 return to their initial positions, the second drive shaft 372 and the fourth drive shaft 374 can move into their corresponding slot spaces. By setting the first support surface 4132 and the second support surface 4232 as described above, the first driving member 413 and the second driving member 423 can smoothly return to their initial positions without interference from the second drive shaft 372 and the fourth drive shaft 374. Alternatively, the first slide 322 and the second slide 324 can also be linear grooves, as long as they can provide space for the second drive shaft 372 and the fourth drive shaft 374 to move, so that after the power supply switches from position I to position 0 or from position II to position 0, the second drive shaft 372 and the fourth drive shaft 374 can return to the corresponding hook groove space under the action of gravity.

[0074] In the above structure, as an improvement, the first slide groove 322 and the first drive shaft 371 are located near the outer wall of the transmission disc 32, so that the driving of the first drive member 413 and the second drive member 423 requires less effort. In addition, the end of the first slide groove 322 near the first drive shaft 371 is symmetrically arranged with the first drive shaft 371.

[0075] like Figure 2 As shown, the motion conversion mechanism 3 also includes a support 38, with an inner cavity 381 at its center. The power input component 31 is located within the inner cavity 381 and can rotate relative to it. A first limiting block 314 is provided on the outer wall of the power input component 31. A second limiting block 382 and a third limiting block 383 are respectively provided on both sides of the support 38, and both limit blocks 382 and 383 engage with the first limiting block 314. When the first driving component 413 drives the second transmission shaft 372 to rotate clockwise to a certain angle, the first limiting block 314 engages with the third limiting block 383, thereby stopping the power input component 31 from rotating, and thus stopping the motion conversion mechanism 3 from rotating. When the second driving component 423 drives the fourth transmission shaft 374 to rotate counterclockwise to a certain angle, the first limiting block 314 engages with the second limiting block 382, ​​thereby stopping the power input component 31 from rotating, and thus stopping the motion conversion mechanism 3 from rotating.

[0076] like Figure 2As shown, in order to ensure that the second drive shaft 372 and the fourth drive shaft 374 can be stably connected in the first slide groove 322 and the second slide groove 324, a first drive member 34 and a second drive member 35 are provided between the drive disc 32 and the power output member 33, and between the drive disc 32 and the power input member 31. The first drive member 34 and the second drive member 35 are provided with a sixth connecting hole 3d that is axially connected to the rotating shaft 311. The first drive member 34 is provided with a seventh connecting hole 341 that is connected to the second drive shaft 372, and the second drive member 35 is provided with an eighth connecting hole 351 that is connected to the fourth drive shaft 374. In this way, the second drive shaft 372 and the fourth drive shaft 374 can be stably connected in the first slide groove 322 and the second slide groove 324 without jamming.

[0077] like Figure 2 and Figure 6 As shown, the outer wall of the shaft hole 3a is provided with a fifth connecting hole 325 that passes through the front and rear ends of the transmission disk 32. The fifth connecting hole 325 passes through the front and rear end faces of the transmission disk 32. A first elastic return member 36 is provided in the fifth connecting hole 325 to bring the first transmission member 34 and the second transmission member 35 closer together. The first elastic return member 36 is preferably a torsion spring. The two ends of the first elastic return member 36 are respectively connected to the first transmission member 34 and the second transmission member 35. Figure 2 As shown, a limiting cam 333 is provided on the end face of the power output component 33. Two fourth limiting blocks 12 and a second elastic reset member 13 are also provided on the housing 1 to drive the fourth limiting blocks 12 to maintain the limiting cam 333 in a limiting position. The second elastic reset member 13 is preferably a compression spring. One end of the fourth limiting block 12 is limited by the limiting cam 333, and the other end is connected to the second elastic reset member 13. When the power supply is switched from position 1 to position 0, the fourth transmission shaft 374 is located at the end of the second slide groove 324 away from the second hook groove 4231. At this time, the first elastic reset member 36 is stretched (as shown in the schematic diagram). Figure 10 As shown in the diagram, during the process of the second driving member 423 moving to the initial position, the fourth transmission shaft 374 slides relative to the second support surface 4232 of the second driving member 423. When the second driving member 423 returns to the initial position, the fourth transmission shaft 374 enters the space of the second hook groove 4231. Under the action of the torsion spring, the fourth transmission shaft 374 moves towards the end of the second slide groove 324 near the end of the second hook groove 4231, that is, the fourth transmission shaft 374 moves to the position of the 0 position. Similarly, when the power supply is switched from position II to position 0, the second transmission shaft 372 is located at the end of the first slide groove 322 away from the first hook groove 4131. At this time, the first elastic reset member 36 is stretched (as shown in the state diagram). Figure 11As shown, during the process of the first driving member 413 moving to the initial position, the second transmission shaft 372 slides relative to the first support surface 4132 of the first driving member 413. When the first driving member 413 returns to the initial position, the second transmission shaft 372 enters the space of the first hook groove 4131. Under the action of the torsion spring, the second transmission shaft 372 moves towards the end of the first sliding groove 322 near the first hook groove 4131, that is, the second transmission shaft 372 moves to the position of the 0 position. It should be noted that when the first elastic reset member 36 is stretched, the two fourth limit blocks 12 jam the limit cam 333, thereby preventing the limit cam 333 from rotating, that is, the motion conversion mechanism 3 cannot rotate.

[0078] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A transmission device of a dual power transfer switch, comprising a motion conversion mechanism and an automatic driving mechanism; the motion conversion mechanism comprises a power input, a transmission disc and a power output connected in sequence and fixed oppositely, the transmission disc is provided with a first sliding groove and a second sliding groove at its front end and rear end respectively; the automatic driving mechanism comprises a first driving assembly for driving the transmission disc to rotate clockwise and a second driving assembly for driving the transmission disc to rotate counterclockwise, characterized in that: a first transmission shaft is arranged beside the first sliding groove, a second transmission shaft is arranged in the first sliding groove in a slidable manner, the front end of the transmission disc is provided with a first transmission member coaxially rotating with the transmission disc, and the first transmission member is connected with the second transmission shaft; a third transmission shaft is arranged beside the second sliding groove, a fourth transmission shaft is arranged in the second sliding groove in a slidable manner, the rear end of the transmission disc is provided with a second transmission member coaxially rotating with the transmission disc, and the second transmission member is connected with the fourth transmission shaft; the transmission disc can realize a first state, a second state and a third state by rotating, the first driving assembly cooperates with the first transmission shaft or the second transmission shaft, thereby driving the transmission disc to rotate clockwise from the third state to the first state or from the first state to the second state, and the second driving assembly cooperates with the third transmission shaft or the fourth transmission shaft, thereby driving the transmission disc to rotate counterclockwise from the second state to the first state or from the first state to the third state.

2. The transmission of claim 1, wherein: one end of the first sliding groove is arranged opposite to the third transmission shaft, and one end of the second sliding groove is arranged opposite to the first transmission shaft.

3. The transmission of claim 2, wherein: the first sliding groove and the first transmission shaft are arranged at a position close to the outer side wall of the transmission disc, and the end of the first sliding groove close to the first transmission shaft is arranged symmetrically with the first transmission shaft.

4. The transmission of claim 1, wherein: the first driving assembly comprises a first driving member and a first driving device for driving the first driving member to move, the first driving member is provided with a first hook groove, and the first hook groove cooperates with the first transmission shaft and the second transmission shaft respectively; the second driving assembly comprises a second driving member and a second driving device for driving the second driving member to move, the second driving member is provided with a second hook groove, and the second hook groove cooperates with the third transmission shaft and the fourth transmission shaft respectively.

5. The transmission of claim 4, wherein: in the first state, the first transmission shaft and the second transmission shaft are located in the first hook groove, the first transmission shaft is farther away from the hook part of the first hook groove than the second transmission shaft, the third transmission shaft and the fourth transmission shaft are located in the second hook groove, the third transmission shaft is farther away from the hook part of the second hook groove than the fourth transmission shaft, and one end of the first sliding groove and the second sliding groove is located in the first hook groove, and the other end is located above the top surface of the first driving member.

6. The transmission of claim 5, wherein: in the second state, the third transmission shaft is located in the second hook groove, and the second sliding groove is located above the top surface of the second driving member.

7. The transmission of claim 6, wherein: in the third state, the first transmission shaft is located in the first hook groove, and the first sliding groove is located above the top surface of the first driving member.

8. The transmission of claim 7, wherein: The top surface of the end of the first driving device is a first supporting surface, and the top surface of the end of the second driving device is a second supporting surface; the first supporting surface and the second supporting surface are both planes; the fourth transmission shaft is in abutment with the second supporting surface when the transmission disc rotates from the second state to the first state, or the second transmission shaft is in abutment with the first supporting surface when the transmission disc rotates from the third state to the first state.

9. The transmission of claim 1, wherein: The front end of the transmission disc is provided with a first connecting hole, one end of the first transmission shaft is fixed with the first connecting hole, and the other end is exposed outside; the rear end of the transmission disc is provided with a second connecting hole, one end of the third transmission shaft is fixed with the second connecting hole, and the other end is exposed outside.

10. A transmission according to any one of claims 1 to 9, characterised in that: The end surface of the power output member is provided with a third sliding groove opposite to the first sliding groove and a third connecting hole opposite to the first transmission shaft; the third sliding groove is matched with the second transmission shaft; and the third connecting hole is matched with the first transmission shaft.

11. A transmission according to any one of claims 1 to 9, characterised in that: The power output member is provided with a limiting cam; the motion conversion mechanism comprises a fourth limiting block and a second elastic return member; one end of the fourth limiting block is in limiting cooperation with the limiting cam, and the other end is connected with the second elastic return member; and the second elastic return member is used to drive the fourth limiting block to keep limiting cooperation with the limiting cam.

12. A transmission according to any one of claims 1 to 9, characterised in that: The motion conversion mechanism further comprises a support, and the support is provided with an inner cavity at the middle position; and the power input member is arranged in the inner cavity and can rotate relative to the inner cavity.

13. The transmission of claim 12, wherein: The outer side wall of the power input member is provided with a first limiting block; and the two sides of the support are respectively provided with a second limiting block and a third limiting block; and the second limiting block and the third limiting block are both in limiting cooperation with the first limiting block.

14. A transmission according to any one of claims 1-9, characterised in that: The first elastic return member is arranged between the second transmission shaft and the fourth transmission shaft and has a mutual approaching tendency.

15. The transmission of claim 14, wherein: The first elastic return member is a torsion spring.

16. The transmission of claim 15, wherein: The middle position of the transmission disc is provided with a fifth connecting hole penetrating through the front end and the rear end of the transmission disc; the first elastic return member is arranged in the fifth connecting hole; and the two ends of the first elastic return member are respectively connected with a first transmission member and a second transmission member.

17. A transmission according to any one of claims 1-9, characterised in that: The end surface of the power input member is provided with a fourth sliding groove opposite to the second sliding groove and a fourth connecting hole opposite to the third transmission shaft; the fourth sliding groove is matched with the fourth transmission shaft; and the fourth connecting hole is matched with the third transmission shaft.

18. A transmission according to any one of claims 1-9, characterised in that: The first sliding groove and the second sliding groove are in arc shape and are arranged with the same center as the transmission disc.

19. A transmission according to any one of claims 1-9, characterised in that: The first sliding groove and the second sliding groove are in linear shape arranged in an inclined manner.

20. A dual power transfer switch comprising a housing and a manual drive mechanism and a locking mechanism disposed within the housing, the manual drive mechanism comprising a driving gear and a driven gear that are intermeshed, characterized in that: The transmission device is arranged in the shell, and the transmission device is the transmission device according to any one of claims 1-19; the driven gear is connected with the power input member and rotates coaxially; and the locking mechanism is used to cooperate with the power input member to control the rotation of the power input member.

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