Transmission structure of change-over switch and change-over switch

Abstract

The utility model relates to the technical field of low-voltage circuit breakers, in particular to a transmission structure of a change-over switch and the change-over switch. The transmission structure comprises a second side plate; the overturning lever is rotatably arranged on the second side plate; the elastic energy storage assembly is used for being in transmission connection with the overturning lever and a driving mechanism of the change-over switch; the first gear can be synchronously and rotatably connected to the overturning lever; the second gear is rotatably arranged on the second side plate and meshed with the first gear, the reference circle of the first gear is larger than that of the second gear, and the second gear is in transmission connection with a moving contact of the change-over switch; wherein the elastic energy storage assembly is configured to store and release elastic potential energy, and the turnover lever is configured to rotate when the elastic energy storage assembly releases the elastic potential energy so as to drive the moving contact to rotate through the first gear and the second gear to switch the switch state. The torque, the speed and the rotation angle output by the driving mechanism can be amplified, so that the change-over switch is safer, the service life is longer, and the structure is more compact.

Description

Technical Field

[0001] The present application relates to the technical field of low-voltage circuit breakers, and in particular to a transmission structure of a transfer switch and a transfer switch. Background Art

[0002] As an important support for the development of modern social economy and people's livelihood, the power transmission and distribution line system plays an irreplaceable role. As an important component carrier in the power transmission and distribution line system, the automatic transfer switch plays an important function, especially in hospitals, smart buildings, data centers, power plants, banks, important infrastructure and other occasions that require uninterrupted, reliable, stable and continuous power output.

[0003] The contact system of the transfer switch includes a moving contact, which is connected to different power sources or electrical equipment by rotating the moving contact. During the opening and closing process, the electrons that can be freed in the moving contact itself and the medium around the contact (such as air medium, etc.) are easy to generate arcs under the action of voltage or current, resulting in safety hazards. One way to reduce the probability of arc generation is to speed up the opening and closing speed of the moving contact. However, this has high requirements for the electric mechanism that drives the moving contact. The power of the electric mechanism is required to be large enough and the speed is fast enough. This type of electric mechanism has high performance, large volume and high cost. In addition, when the power of the electric mechanism is too large, the force borne by the internal components of the transfer switch is large, and the components are prone to fatigue damage, which will lead to a decrease in the force of the transfer switch. In addition, the static contacts associated with different power sources or electrical equipment often need to be set relatively far away in order to improve safety and meet the requirements of setting a double-open position. This also requires the output component of the electric mechanism to have a larger movement stroke, resulting in an increase in the volume of the transfer switch, which is not conducive to the miniaturization development trend of the transfer switch.

[0004] Therefore, how to improve the durability of the transfer switch while improving the safety of the transfer switch and taking into account the miniaturization development requirements of the transfer switch is one of the important research directions in this field. Utility Model Content

[0005] The present application aims to provide a transmission structure of a transfer switch and a transfer switch, so as to improve the safety and durability of the transfer switch and have a compact structure.

[0006] The embodiment of the present application is implemented as follows:

[0007] In a first aspect, an embodiment of the present application provides a transmission structure of a transfer switch, which includes:

[0008] Second side panel;

[0009] A flip lever, rotatably disposed on the second side plate;

[0010] An elastic energy storage component, used for driving a driving mechanism connecting a flip lever and the conversion switch;

[0011] A first gear, synchronously rotatably connected to the flip lever;

[0012] A second gear is rotatably disposed on the second side plate and meshes with the first gear, the pitch circle of the first gear is larger than the pitch circle of the second gear, and the second gear is drivingly connected to the moving contact of the conversion switch;

[0013] Wherein, the elastic energy storage component is configured to store and release elastic potential energy, and the flip lever is configured to rotate when the elastic energy storage component releases elastic potential energy, so as to drive the moving contact to rotate through the first gear and the second gear to switch the switch state.

[0014] In one embodiment of the present application, the second side plate is provided with a second notch, the flip lever is provided with a flip lever protrusion, and the first gear is provided with a first gear linkage portion;

[0015] The flip lever and the first gear are respectively arranged on both sides of the second side plate and have corresponding positions. The protruding portion of the flip lever can be slidably inserted into the second notch and connected with the first gear linkage portion.

[0016] In one embodiment of the present application, the transmission structure further includes:

[0017] A central shaft is passed through the second side plate, the flip lever and the first gear are coaxially rotatably arranged on the central shaft, and the second notch is constructed as an arc groove extending circumferentially around the central shaft.

[0018] In one embodiment of the present application, the first gear is provided with at least two first gear linkage parts, one of the at least two first gear linkage parts is located on a side of the central axis close to the second gear, and the other is located on a side of the central axis away from the second gear;

[0019] The flip lever is correspondingly provided with at least two flip lever protrusions, and the second side plate is correspondingly provided with at least two second notches.

[0020] In one embodiment of the present application, the second gear has a first position, a second position and a third position. When the second gear is in the first position, the conversion switch is in a state of closing the power supply on the common side. When the second gear is in the second position, the conversion switch is in a state of double opening. When the second gear is in the third position, the conversion switch is in a state of closing the power supply on the standby side.

[0021] The first gear is configured to reciprocate under the driving of the flip lever, so that the second gear switches among the first position, the second position and the third position.

[0022] In one embodiment of the present application, the second gear includes a first step portion and a second step portion arranged along its own axial direction, the first step portion is provided with a second tooth, the second step portion is provided with a notch, and both ends of the notch form a first stop portion and a second stop portion;

[0023] The transmission structure of the conversion switch also includes:

[0024] a sixth lever, evasibly disposed on a rotation path of the first stopper to position the second gear at a first position;

[0025] The seventh lever is evasively arranged on the rotation path of the second stopper to position the second gear at the third position.

[0026] In an embodiment of the present application, the notch is staggered from a projection of the second tooth along the rotation axis of the second gear.

[0027] In one embodiment of the present application, the first gear includes a first sector-shaped portion, the arc surface of the first sector-shaped portion is provided with first teeth, the second gear is provided with second teeth, and the first teeth are meshed with the second teeth.

[0028] In one embodiment of the present application, the first gear includes a second sector-shaped portion, the second sector-shaped portion is located on a side of the central axis away from the first sector-shaped portion, and the second sector-shaped portion is used to display the position of the second gear.

[0029] In one embodiment of the present application, the elastic energy storage component includes a flip spring and a first transmission member, the first transmission member is coaxially arranged with the flip lever and can rotate relatively, the first transmission member is provided with a flip spring fixing portion, the flip lever is provided with a flip spring mounting portion, and the two ends of the flip spring are respectively connected to the flip spring fixing portion and the flip spring mounting portion;

[0030] The first transmission member and the flip lever rotate around a central axis, the flip spring mounting portion has a first connecting line with the central axis, the flip spring fixing portion reciprocates along the central axis from one side of the first connecting line to the other side, and the flip spring is configured to store energy when the flip spring fixing portion is located on the first connecting line, and to drive the flip lever to rotate in the opposite direction relative to the first transmission member when the flip spring fixing portion deviates from the first connecting line.

[0031] In one embodiment of the present application, the transmission structure of the conversion switch further includes:

[0032] A first lever is coaxially fixed with the first transmission member and is provided with a third slide groove, and two ends of the third slide groove are provided with a first force-bearing portion and a second force-bearing portion;

[0033] A connecting rod, comprising a first linkage portion and a second linkage portion, wherein the second linkage portion is connected to a driving mechanism of the conversion switch, and the first linkage portion is slidably connected to the third sliding groove;

[0034] The first linkage portion selectively applies a force to the first force-bearing portion and the second force-bearing portion to drive the flip lever to rotate in two opposite directions.

[0035] In a second aspect, an embodiment of the present application provides a transfer switch, comprising:

[0036] Moving contact;

[0037] The transmission structure of the conversion switch according to any one of the first aspects.

[0038] Beneficial effects:

[0039] The transmission structure of the conversion switch provided in the embodiment of the present application cooperates with an elastic energy storage component, a flip lever, a first gear and a second gear. The elastic energy storage component is used to first store energy, and then the elastic potential energy is released to drive the flip lever to achieve a first speed-up, and then the first gear with a larger pitch circle and the second gear with a smaller pitch circle are used to cooperate to achieve a second speed-up, which can greatly improve the opening and closing speed; at the same time, the first gear and the second gear can amplify the rotation angle of the flip lever to make the rotation angle of the moving contact larger, and the final opening and closing angles of the contact system of the conversion switch are larger, which is beneficial to improving the power switching process and the safety of the opening; and, when the torque required by the moving contact is constant, the torque that the second gear needs to apply to the moving contact is constant. Since the pitch circle of the first gear is larger than that of the second gear, the torque required to be output by the flip lever is smaller, and the force value requirement of the flip spring is smaller, which can reduce the force on each part of the conversion switch during the three-state conversion process, thereby improving the product life. Therefore, the present application can increase the rotation speed and rotation angle of the moving contact, making the switching switch safer, and can also amplify the torque of the driving mechanism so that a driving mechanism with a smaller volume and lower performance can also meet the use requirements, and each component is subjected to less force, has a longer service life, and the overall structure can be arranged more compactly. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0041] Figure 1 A driving mechanism for a transfer switch provided in an embodiment of the present application;

[0042] Figure 2 A schematic diagram of a flip lever and an elastic energy storage assembly provided in an embodiment of the present application;

[0043] Figure 3 A schematic diagram of a first gear and a second gear provided in an embodiment of the present application;

[0044] Figure 4 A diagram of the energy storage process of the elastic energy storage assembly provided in an embodiment of the present application;

[0045] Figure 5 A diagram of the process of the elastic energy storage component releasing energy to drive the flip lever provided in the embodiment of the present application;

[0046] Figure 6 A schematic diagram of a flip lever provided in an embodiment of the present application in a second rotation position;

[0047] Figure 7 A schematic diagram of a first side panel and a second side panel provided in an embodiment of the present application;

[0048] Figure 8 A schematic diagram of a flip lever provided in an embodiment of the present application;

[0049] Fig. 9 A schematic diagram of a first gear provided in an embodiment of the present application;

[0050] Fig.10 A schematic diagram of a central axis provided in an embodiment of the present application;

[0051] Fig.11 A schematic diagram of a second gear provided in an embodiment of the present application;

[0052] Fig.12 A schematic diagram of a transmission structure in a state where the common side power supply is closed provided in an embodiment of the present application (the second gear is in the first position);

[0053] Fig.13 A schematic diagram of a transmission structure in a state where the common side power supply is disconnected provided in an embodiment of the present application (the second gear is in the second position);

[0054] Fig.14A schematic diagram of a transmission structure in a state where the backup side power supply is switched on provided in an embodiment of the present application (the second gear is in the third position);

[0055] Fig.15 A schematic diagram of a sixth lever provided in an embodiment of the present application;

[0056] Fig.16 A schematic diagram of a seventh lever provided in an embodiment of the present application;

[0057] Fig.17 A schematic diagram of a second transmission member provided in an embodiment of the present application;

[0058] Fig.18 A schematic diagram of the transmission structure in the standby side power supply disconnected state provided in an embodiment of the present application (the second gear is in the second position). DETAILED DESCRIPTION

[0059] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0060] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0061] An embodiment of the present application provides a transmission structure of a switching switch and a switching switch. The transmission structure is arranged between a driving mechanism and a moving contact of the switching switch, and can amplify the torque, speed and rotation angle output by the driving mechanism, so that the switching switch is safer, has a longer service life and a more compact structure.

[0062] The closing position locking device in the embodiment of the present application is applied in a transfer switch device. The transfer switch device can be connected to the common side power supply or the standby side power supply, and has a first closing state, a second closing state, and a double opening state. Optionally, when the transfer switch device is in the first closing state, the moving contact contacts the static contact of the common side power supply end; when it is in the second closing state, the moving contact contacts the static contact of the standby side power supply end; when it is in the double opening state, the moving contact is separated from both static contacts.

[0063] like Figure 1 As shown, the transfer switch includes a driving mechanism CT1 and a transmission structure.

[0064] The transmission structure includes a first side plate ZCB and a second side plate YCB. The first side plate ZCB and the second side plate YCB are arranged at intervals. The second side plate YCB faces the moving contact of the switching switch (not shown in the figure). The driving mechanism CT1 is arranged on the first side plate ZCB. The various components of the transmission structure are installed on the first side plate ZCB and the second side plate YCB, and transmit power to the moving contact.

[0065] In other embodiments, the first side plate ZCB and the second side plate YCB may be an integrated structure, or may serve as a housing of a transfer switch, etc.

[0066] Combination Figure 2 and Figure 3 As shown, the transmission structure includes a flip lever GG01, an elastic energy storage component TXCN, a first gear CL1 and a second gear CL2.

[0067] The flip lever GG01 and the elastic energy storage assembly TXCN are arranged between the first side plate ZCB and the second side plate YCB, the first gear CL1 and the second gear CL2 are arranged on the side of the second side plate YCB away from the first side plate ZCB, and the second gear CL2 is linked to the moving contact through a square shaft.

[0068] The flip lever GG01 is rotatably arranged on the second side plate YCB, and the elastic energy storage component TXCN is used for transmission connection between the flip lever GG01 and the driving mechanism CT1 of the conversion switch.

[0069] In some embodiments, Figure 2 As shown, the elastic energy storage assembly TXCN includes a flip spring TH01 and a first transmission member B02. The first transmission member B02 is provided with a flip spring fixing portion B02.2. The flip lever GG01 is provided with a flip spring mounting portion GG01.2. The two ends of the flip spring TH01 are respectively connected to the flip spring fixing portion B02.2 and the flip spring mounting portion GG01.2.

[0070] The first transmission member B02 is coaxially arranged with the flip lever GG01 and can rotate relatively around the central axis ZXZ.

[0071] The flip spring mounting part GG01.2 has a first connecting line BnB with the center axis ZXZ, and the flip spring fixing part B02.2 reciprocates from one side of the first connecting line BnB to the other side along the center axis ZXZ. The flip spring TH01 is configured to store energy when the flip spring fixing part B02.2 is located on the first connecting line BnB, and to drive the flip lever GG01 to rotate in the opposite direction relative to the first transmission member B02 when the flip spring fixing part B02.2 deviates from the first connecting line BnB.

[0072] For example, Figure 4As shown, when the flip lever GG01 is in the first rotation position Figure 4 In the figure, the side of the second side plate YCB facing the first side plate ZCB is taken as the front view. When the flip lever GG01 is at the maximum counterclockwise rotation angle, the first rotating member rotates counterclockwise, so that the flip spring fixing part B02.2 gradually approaches the first connecting line BnB, and the flip spring TH01 is compressed to accumulate elastic force. When the flip spring fixing part B02.2 is located on the first connecting line BnB, the accumulated elastic force of the flip spring TH01 is the largest, and at this time, the direction of the elastic force is along the first connecting line BnB and is at a dead point position; Figure 5 As shown, the first transmission member B02 continues to rotate counterclockwise, and the flip spring fixing portion B02.2 leaves the first connecting line BnB and passes the dead point. At this time, the flip spring TH01 releases elastic potential energy, prompting the flip lever GG01 to quickly rotate clockwise to the second rotation position. Figure 6 As shown, the flip lever GG01 reaches the second rotation position, at the maximum clockwise rotation angle, and the first transmission member B02 is at the maximum counterclockwise rotation angle. The principle of causing the flip lever GG01 to rotate counterclockwise from the second rotation position to the first rotation position is the same, and only the first rotation member needs to rotate clockwise.

[0073] The first gear CL1 can be synchronously rotatably connected to the flip lever GG01. There are many ways to synchronously rotate the first gear CL1 and the flip lever GG01, for example, the first gear CL1 and the flip lever GG01 are fixed on the same rotating shaft; another example is to open a notch on the second side plate YCB, and the first gear CL1 and the flip lever GG01 are linked through a connecting piece passing through the notch. At this time, the first gear CL1 and the flip lever GG01 can be coaxially rotated or non-coaxially rotated.

[0074] For example, Figure 7 As shown, the second side plate YCB is provided with a second notch YCB.2, such as Figure 8 As shown, the flip lever GG01 is provided with a flip lever protrusion Z12, as shown in FIG. Fig. 9 As shown, the first gear CL1 is provided with a first gear linkage part CL1.2.

[0075] The flip lever GG01 and the first gear CL1 are respectively arranged on both sides of the second side plate YCB and have corresponding positions. The flip lever protrusion Z12 can be slidably passed through the second slot YCB.2 and connected to the first gear linkage part CL1.2. This makes the rotation space required for the flip lever GG01 overlap with the rotation space required for the first gear CL1 and the second gear CL2 along the thickness direction of the second side plate YCB, making the structure more compact.

[0076] Combination Figure 1As shown, the transmission structure also includes a central axis ZXZ, the central axis ZXZ is passed through the second side plate YCB, the flip lever GG01 and the first gear CL1 are coaxially rotatably arranged on the central axis ZXZ, and the second notch YCB.2 is constructed as an arc groove extending circumferentially around the central axis ZXZ. Therefore, when the flip lever GG01 rotates around the central axis ZXZ, it drives the first gear CL1 to rotate synchronously.

[0077] Optionally, the first gear CL1 is provided with two first gear linkage parts CL1.2, one of the two first gear linkage parts CL1.2 is located on the side of the central axis ZXZ close to the second gear CL2, and the other is located on the side of the central axis ZXZ away from the second gear CL2, the flip lever GG01 is correspondingly provided with two flip lever protrusions Z12, and the second side plate YCB is correspondingly provided with two second notches YCB.2. Through such an arrangement, the rotation of the flip lever GG01 and the first gear CL1 is more stable, and it is not easy to have problems such as offset and jamming, and it is not easy to be damaged in long-term use. Of course, the number of the first gear linkage part CL1.2, the flip lever protrusion Z12, and the second notch YCB.2 can also be more than two.

[0078] Optionally, the first gear CL1 includes a first sector portion CL2a, the arc surface of the first sector portion CL2a is provided with a first tooth CL1.3, the second gear CL2 is provided with a second tooth CL2.2, and the first tooth CL1.3 is meshed with the second tooth CL2.2.

[0079] Optionally, on the basis of the first sector portion CL2a, the first gear CL1 includes a second sector portion CL1 b, the second sector portion CL1 b is located on the side of the central axis ZXZ away from the first sector portion CL2a, and when there are two first gear linkage portions CL1.2, the two first gear linkage portions CL1.2 are respectively arranged on the first sector portion CL2a and the second sector portion CL1 b. The second sector portion CL1 b is used to display the position of the second gear CL2, and the position of the second gear CL2 corresponds to the opening and closing state of the moving contact, so as to display the opening and closing state of the moving contact.

[0080] There are many ways for the second sector CL1b to display the position of the second gear CL2. For example, three trigger switches are arranged on the second side plate YCB, and the three trigger switches are arranged along the rotation path of the second sector CL1b. When the first gear CL1 drives the second gear CL2 to rotate to the first position, the second position or the third position, the second sector CL1b of the first gear CL1 triggers a trigger switch correspondingly, and the trigger switch is configured to emit a signal, control the opening and closing of the signal light, etc. when triggered. For another example, a display window is arranged on the housing of the conversion switch, so that the position of the second gear CL2 can be known by observing the position of the second sector CL1b. For another example, a display window is arranged on the housing of the conversion switch, and three marks are arranged on the second sector CL1b. The three marks correspond to the display window when the second sector CL1b rotates to the first position, the second position, and the third position, respectively, so that the position of the second gear CL2 can be known by observing the marks currently corresponding to the display window, wherein the three marks can be text marks, or can be color or pattern marks.

[0081] The central axis ZXZ serves as a mounting component for the flip lever GG01 and the first gear CL1, and can also serve as a power transmission component between the drive mechanism CT1 and the first transmission member B02. Figure 7 As shown, the first side plate ZCB is provided with a first through hole ZCB.1, the second side plate YCB is provided with a second through hole YCB.1, and the central axis ZXZ passes through the first side plate ZCB and the second side plate YCB; Fig.10 As shown, the central axis ZXZ includes the first section ZXZ.1, the second section ZXZ.2, the third end, the fourth section ZXZ.4 and the fifth section ZXZ.5. The first section ZXZ.1, the fifth section ZXZ.5, the fourth section ZXZ.4, the second section ZXZ.2 and the third section ZXZ.3 are arranged along the central axis ZXZ line. The fourth section ZXZ.4 has the largest cross-sectional area. The fifth section ZXZ.5 has a cross-sectional area smaller than the fourth section ZXZ.4 and larger than the first section ZXZ.1. The second section ZXZ.2 has a cross-sectional area smaller than the fourth section ZXZ.4 and larger than the third section ZXZ.3, thereby forming a shoulder between two adjacent sections. The first section ZXZ.1 is connected from the first through hole ZCB. 1, the second section ZXZ.2 and the third section ZXZ.3 extend from the second through hole YCB.1, the fourth section ZXZ.4 and the fifth section ZXZ.5 are located between the first side plate ZCB and the second side plate YCB; the third section ZXZ.3 is used to install the flip lever GG01, the fourth section ZXZ.4 is used to install the first gear CL1, and the third section ZXZ.3 and the fourth section ZXZ.4 are constructed as cylinders so that the flip lever GG01 and the first gear CL1 can rotate circumferentially relative to the central axis ZXZ; the fifth section ZXZ.5 is used to install the first transmission member B02, and the fifth section ZXZ.5 is constructed as a special-shaped column so that the first transmission member B02 can rotate synchronously with the central axis ZXZ.

[0082] The second gear CL2 is rotatably disposed on the second side plate YCB. Figure 7 As shown, the second side plate YCB is provided with a second gear mounting shaft Z09, as shown in FIG. Fig.11 As shown, the second gear CL2 is provided with a second gear mounting portion CL2.1 and a second gear linkage portion CL2.3, and the second gear mounting portion CL2.1 cooperates with the second gear mounting shaft Z09, so that the second gear CL2 is mounted on the second side plate YCB and can rotate around the second gear mounting shaft Z09. The second gear linkage portion CL2.3 is connected to the transmission component (such as Figure 3 The moving contact of the square shaft) linked transfer switch device shown in FIG.

[0083] The first gear CL1 is provided with a first tooth CL1.3, the second gear CL2 is provided with a second tooth CL2.2, the first tooth CL1.3 is meshed with the second tooth CL2.2, the pitch circle of the first gear CL1 is larger than the pitch circle of the second gear CL2, and the transmission ratio of the first gear CL1 to the second gear CL2 is greater than 1.

[0084] When the first gear CL1 rotates under the action of the flip lever GG01, it drives the second gear CL2 to rotate, and then drives the moving contact to rotate to switch between the first closing state, the second closing state, and the double opening state.

[0085] Specifically, the second gear CL2 has a first position, a second position, and a third position.

[0086] like Fig.12 As shown, when the second gear CL2 is in the first position, the transfer switch is in the state of closing the power supply on the common side; Fig.13 As shown, the second gear CL2 is in a double split state when in the second position; Fig.14 As shown, when the second gear CL2 is in the third position, the transfer switch is in the standby power supply closing state. The first gear CL1 is configured to reciprocate under the driving of the flip lever GG01, so that the second gear CL2 switches among the first position, the second position and the third position.

[0087] The technical solution provided in the embodiment of the present application cooperates with the elastic energy storage component TXCN, the flip lever GG01, the first gear CL1 and the second gear CL2, uses the elastic energy storage component TXCN to first store energy, then releases the elastic potential energy to drive the flip lever GG01 to achieve a first speed-up, and then uses the first gear CL1 with a larger pitch circle and the second gear CL2 with a smaller pitch circle to achieve a second speed-up, which can greatly improve the opening and closing speed; at the same time, the first gear CL1 and the second gear CL2 can amplify the rotation angle of the flip lever GG01, so that the rotation angle of the moving contact is larger, and the final opening and closing angles of the contact system of the conversion switch are larger, which is beneficial to improving the power switching process and the safety of the opening; and, when the torque required by the moving contact is constant, the torque that the second gear CL2 needs to apply to the moving contact is constant. Since the pitch circle of the first gear CL1 is larger than that of the second gear CL2, the torque that needs to be output by the flip lever GG01 is smaller, and the force value requirement of the flip spring TH01 is smaller, which can reduce the force on each part of the conversion switch during the three-state conversion process, thereby improving the product life. Therefore, the present application can improve the rotation speed and rotation angle of the moving contact, making the switching switch safer, and can also amplify the torque of the driving mechanism CT1, so that a driving mechanism CT1 with a smaller volume and lower performance can also meet the use requirements, and each component is subjected to less force, has a longer service life, and the overall structure can be arranged more compactly.

[0088] In some embodiments, Fig.11 As shown, the second gear CL2 includes a first step portion CL1a and a second step portion CL1b arranged along its own axial direction, the second tooth CL2.2 is arranged on the first step portion CL1a, and a notch is arranged on the second step portion CL1b, and the two ends of the notch form a first stop portion CL2.4 and a second stop portion CL2.5.

[0089] Since the second tooth CL2.2 and the notch are respectively arranged on two different steps, that is, the second tooth CL2.2 and the notch are staggered along the axial direction of the second gear CL2, it plays a role in preventing the first stopper CL2.4 and the second stopper CL2.5 from interfering with the first gear CL1, and also preventing other structures cooperating with the first stopper CL2.4 and the second stopper CL2.5 from interfering with the first gear CL1 or the second tooth CL2.2. Furthermore, the notch and the projection of the second tooth CL2.2 along the rotation axis direction of the second gear CL2 are staggered, so as to better utilize the space on the surface of the second side plate YCB and avoid interference.

[0090] The transmission structure of the conversion switch also includes a sixth lever GG08 and a seventh lever B03. Fig.12As shown, the sixth lever GG08 can be arranged in a circumventive manner on the rotation path of the first stopper CL2.4 to position the second gear CL2 in the first position. Fig.14 As shown, the seventh lever B03 can be evasively arranged on the rotation path of the second stopper CL2.5 to position the second gear CL2 at the third position.

[0091] like Fig.15 As shown, the sixth lever GG08 includes a sixth lever mounting portion GG08.1, a sixth lever limiting portion GG08.2, a fifth notch GG08.3, a sixth lever resetting portion GG08.4, and a sixth lever linkage portion GG08.5. Figure 7 As shown, the second side plate YCB is provided with a sixth lever mounting axis Z01 a, a sixth lever limiting axis Z01 a′, and a seventh spring mounting axis Z02a. The sixth lever mounting portion GG08.1 is sleeved on the sixth lever mounting axis Z01 a, so that the sixth lever GG08 can rotate around the sixth lever mounting axis Z01 a. The sixth lever limiting axis Z01 a′ on the second side plate YCB is located in the fifth notch GG08.3 of the sixth lever GG08, so that the sixth lever GG08 can be limited in rotation range by the sixth lever limiting axis Z01 a′ during the rotation process. One end of the seventh spring TH05 is fixed on the seventh spring mounting axis Z02a, and the other end is fixed on the sixth lever reset portion GG08.4, so that the sixth lever GG08 has a tendency to reset to the rotation path of the first stop portion CL2.4 after rotating to avoid the first stop portion CL2.4. Among them, the sixth lever limit portion GG08.2 is a protruding structure on the sixth lever GG08. The sixth lever limit portion GG08.2 is used to enter the gap and cooperate with the first stop portion CL2.4 to position the second gear CL2 to the first position; when the sixth lever GG08 avoids the first stop portion CL2.4, the sixth lever limit portion GG08.2 leaves the gap.

[0092] like Fig.16 As shown, the seventh lever B03 includes a seventh lever mounting portion B03.1, a seventh lever limiting portion B03.2, a sixth notch B03.3, a seventh lever resetting portion B03.4, and a seventh lever linkage portion B03.5. Figure 7As shown, the second side plate YCB is provided with a seventh lever mounting axis Z01 b, a seventh lever limiting axis Z01 b′, and an eighth spring mounting axis Z02b. The seventh lever mounting portion B03.1 is sleeved on the seventh lever mounting axis Z01 b, so that the seventh lever B03 can rotate around the seventh lever mounting axis Z01 b. The seventh lever limiting axis Z01 b′ on the second side plate YCB is located in the sixth notch B03.3 of the seventh lever B03, so that the seventh lever B03 can be limited in rotation range by the seventh lever limiting axis Z01 b′ during the rotation process. One end of the eighth spring TH05′ is fixed on the eighth spring mounting axis Z02b, and the other end is fixed on the seventh lever reset portion B03.4, so that the seventh lever B03 has a tendency to reset to the rotation path of the second stop portion CL2.5 after rotating to avoid the second stop portion CL2.5. Among them, the seventh lever limit portion B03.2 is a protruding structure on the seventh lever B03, and the seventh lever limit portion B03.2 is used to enter the gap and cooperate with the second stop portion CL2.5 to position the second gear CL2 to the third position; when the seventh lever B03 avoids the second stop portion CL2.5, the seventh lever limit portion B03.2 leaves the gap.

[0093] In some embodiments, a power mechanism may be provided to drive the sixth lever GG08 and the seventh lever B03 to rotate to achieve the avoidance effect. In the embodiment of the present application, the transmission structure further includes a second transmission member B04, such as Fig.17 As shown, the second transmission member B04 is configured to drive the sixth lever GG08 to avoid the first stopper CL2.4 or drive the seventh lever B03 to avoid the second stopper CL2.5 as the elastic energy storage assembly TXCN moves during the process of storing elastic potential energy in the elastic energy storage assembly TXCN.

[0094] Specifically, the second transmission member B04 is arranged on the central axis ZXZ, and the second transmission member B04 rotates synchronously with the first transmission member B02. Optionally, the second transmission member B04 is arranged on the second section ZXZ.2 of the central axis ZXZ, the second section ZXZ.2 is a special-shaped column, and the second transmission member B04 has a special-shaped hole adapted to the second section ZXZ.2, so that the second transmission member B04 can be circumferentially fixed to the central axis ZXZ, and the first transmission member B02 and the second transmission member B04 rotate synchronously through the central axis ZXZ.

[0095] The second transmission member B04 has a first flip linkage part B04.4 and a second flip linkage part B04.5. The first flip linkage part B04.4 is configured to contact the sixth lever linkage part GG08.5 to push the sixth lever GG08 to rotate, so that the sixth lever limit part GG08.2 leaves the gap to avoid the first stop part CL2.4. The second flip linkage part B04.5 is configured to contact the seventh lever linkage part B03.5 to push the seventh lever B03 to rotate, so that the seventh lever limit part B03.2 leaves the gap to avoid the second stop part CL2.5.

[0096] By utilizing the rotational hysteresis of the flip lever GG01 relative to the first transmission member B02, the second gear CL2 also has a rotational hysteresis relative to the second transmission member B04, thereby first driving the sixth lever GG08 or the seventh lever B03 through the second transmission member B04 to release the restriction on the second gear CL2, and then smoothly driving the second gear CL2 to rotate through the flip lever GG01 and the first gear CL1.

[0097] When the moving contact of the transfer switch is in the state of closing the power supply on the common side, from the front view of the side of the second side plate YCB facing away from the first side plate ZCB, when the flip lever GG01 is in the first rotation position, it is at the maximum angle position of its clockwise rotation, and the central axis ZXZ and the second transmission member B04 are at their respective maximum angle positions of their counterclockwise rotation. Figure 2 and Fig.12 As shown, the flip lever GG01 links the first gear CL1 through the flip lever protrusion Z12, so that the first gear CL1 is located at the maximum angle position of its own clockwise rotation, and the first gear CL1 pulls the second gear CL2 through the first tooth CL1.3, so that the second gear CL2 is located at the maximum angle position of its counterclockwise rotation. The first flip linkage part B04.4 of the second transmission member B04 is not in contact with the sixth lever linkage part GG08.5 of the sixth lever GG08, and the second flip linkage part B04.5 of the second transmission member B04 contacts the seventh lever linkage part B03.5 of the seventh lever B03 and overcomes the elastic force of the eighth spring TH05', thereby rotating the seventh lever B03. At this time, the sixth lever limit part GG08.2 of the sixth lever GG08 abuts against the first stop part CL2.4 of the second gear CL2 to lock the common side power switch position. It can be understood that even if the contact between the moving contact and the static contact tends to be repelled due to the electromagnetic repulsion force when closing the circuit breaker, the sixth lever limit part GG08.2 can also prevent the second gear CL2 from rotating clockwise in the direction of closing the backup side power supply, thereby ensuring the stability of closing the normal side power supply.

[0098] like Fig.13 As shown in Fig.12On the basis of the rotation of the central axis ZXZ clockwise, the second transmission member B04 also rotates clockwise with the central axis ZXZ. During the rotation process, the first flip linkage part B04.4 of the second transmission member B04 gradually approaches and abuts against the sixth lever linkage part GG08.5 of the sixth lever GG08, so that the sixth lever GG08 begins to overcome the elastic force of the seventh spring TH05 and rotates. Continue to rotate the central axis ZXZ clockwise to its maximum clockwise angle position. At this time, the sixth lever GG08 rotates to the maximum angle position relative to the initial position, and the sixth lever limit part GG08.2 separates from the first stop part CL2.4 of the second gear CL2, thereby releasing the lock on the second gear CL2. At the same time, the flip lever GG01 drives the first gear CL1 to rotate counterclockwise. Driven by the first gear CL1, the second gear CL2 rotates clockwise, and the conversion switch device completes the common side power disconnection. At this time, the sixth lever GG08 and the seventh lever B03 are both in the avoidance position, that is, the sixth lever limiting portion GG08.2 is separated from the first stop portion CL2.4, and the seventh lever limiting portion B03.2 is separated from the second stop limiting portion.

[0099] When the transfer switch device is in the standby side power supply closed state, from the front view of the second side plate YCB, the flip lever GG01 is at its maximum counterclockwise rotation angle position, and the central axis ZXZ and the second transmission member B04 are at their respective maximum clockwise rotation angle positions. Fig.14 As shown, the flip lever GG01 links the first gear CL1 through the flip lever protrusion Z12, so that the first gear CL1 is located at the maximum angle position of its own counterclockwise rotation, and the first gear CL1 pulls the second gear CL2 through the first tooth CL1.3, so that the second gear CL2 is located at the maximum angle position of its clockwise rotation. The second flip linkage part B04.5 of the second transmission member B04 is not in contact with the seventh lever linkage part B03.5 of the seventh lever B03, and the first flip linkage part B04.4 of the second transmission member B04 contacts the sixth lever linkage part GG08.5 of the sixth lever GG08 and overcomes the elastic force of the seventh spring TH05, thereby rotating the sixth lever GG08. At this time, the seventh lever limit part B03.2 of the seventh lever B03 abuts against the second stop part CL2.5 of the second gear CL2 to lock the standby side power supply closing position. It can be understood that even if the contact between the moving contact and the static contact tends to be repelled due to the electromagnetic repulsion force when closing the circuit breaker, the seventh lever limit part B03.2 can also prevent the second gear CL2 from rotating counterclockwise in the direction of closing the normal side power supply, thereby ensuring the stability of closing the backup side power supply.

[0100] like Fig.18 As shown, in Fig.14On the basis of the rotation of the central axis ZXZ counterclockwise, the second transmission member B04 also rotates counterclockwise with the central axis ZXZ. During the rotation process, the second flip linkage part B04.5 of the second transmission member B04 gradually approaches and abuts against the seventh lever linkage part B03.5 of the seventh lever B03, so that the seventh lever B03 begins to overcome the elastic force of the eighth spring TH05′ and rotate. Continue to rotate the central axis ZXZ counterclockwise to its maximum counterclockwise angle position. At this time, the seventh lever B03 rotates to the maximum angle position relative to the initial position, and the seventh lever limit part B03.2 separates from the second stop part CL2.5 of the second gear CL2, thereby releasing the lock on the second gear CL2. At the same time, the flip lever GG01 drives the first gear CL1 to rotate clockwise. Driven by the first gear CL1, the second gear CL2 rotates counterclockwise, and the switching device completes the standby side power supply disconnection. At this time, the sixth lever GG08 and the seventh lever B03 are both in the avoidance position, that is, the sixth lever limiting portion GG08.2 is separated from the first stop portion CL2.4, and the seventh lever limiting portion B03.2 is separated from the second stop limiting portion.

[0101] In addition, if Figure 1 As shown, the transmission structure also includes a first lever GG05 and a connecting rod LG01.

[0102] The first lever GG05 is coaxially fixed with the first transmission member B02. Specifically, the first section ZXZ.1 of the central axis ZXZ extending out of the first side plate ZCB is a special-shaped column, and the first lever GG05 has a special-shaped hole adapted to the first section ZXZ.1, so that the first lever GG05 can be circumferentially fixed with the central axis ZXZ to achieve synchronous rotation. The first lever GG05 is provided with a third slide groove GG05.2, and the two ends of the third slide groove GG05.2 extend to both sides of the central axis ZXZ, and a first force-bearing portion and a second force-bearing portion are formed at the two ends of the third slide groove GG05.2.

[0103] The connecting rod LG01 includes a first linkage part LG01.1 and a second linkage part LG01.2. The second linkage part LG01.2 is connected to the driving mechanism CT1 of the conversion switch. The first linkage part LG01.1 is slidably connected to the third slide groove GG05.2 so that the first linkage part LG01.1 can be selectively matched with the first force-bearing part and the second force-bearing part.

[0104] The power generated by the driving mechanism CT1 is applied to the connecting rod LG01, and applies a force to the first force-bearing part and the second force-bearing part alternatively through the first linkage part LG01.1, so as to drive the flip lever GG01 to rotate in two opposite directions.

[0105] With the cooperation of the first lever GG05, the connecting rod LG01 and the central axis ZXZ, the reciprocating power along the linear direction can be converted into the power to make the central axis ZXZ reciprocate, thereby driving the first transmission member B02 and the flip lever GG01 to reciprocate.

[0106] Optionally, the driving mechanism CT1 is configured as a first electromagnet. Figure 1 As shown, the first electromagnet includes a first iron core CT1.2, a first magnetic yoke CT1.1 and a first reset spring CT1.3. The first magnetic yoke CT1.1 is fixedly arranged on the first side plate ZCB, the first iron core CT1.2 is telescopically arranged on the first magnetic yoke CT1.1, the telescopic direction of the first iron core CT1.2 is perpendicular to the central axis ZXZ line, the first iron core CT1.2 extends out of the first magnetic yoke CT1.1 and approaches the central axis ZXZ in the initial position, the first iron core CT1.2 contracts to the actuation position and moves away from the central axis ZXZ when the first magnetic yoke CT1.1 is energized, and the first reset spring CT1.3 is arranged between the first magnetic yoke CT1.1 and the first iron core CT1.2 to provide the first iron core CT1.2 with an elastic force to reset toward the initial position.

[0107] The second linkage part LG01.2 of the connecting rod LG01 is swingably connected to the first iron core CT1.2.

[0108] Figure 1 The state of the driving mechanism CT1 when the power supply of the common side is closed, the first electromagnet is powered off, the connecting rod LG01 swings upward relative to the first iron core CT1.2, and the first linkage part LG01.1 cooperates with the first force-bearing part. At this time, if the first electromagnet is powered on, the first iron core CT1.2 will drive the connecting rod LG01 to move to the left, and pull the first lever GG05 and the central axis ZXZ to rotate in the positive direction (the positive direction here is Figure 1 counterclockwise from the perspective of ), drives the flip lever GG01 to rotate clockwise to the second rotation position, so that the transfer switch switches to the standby side power supply closing state; when the first electromagnet is powered off, the first reset spring CT1.3 drives the first iron core CT1.2 to move right, and makes the first linkage part LG01.1 of the connecting rod LG01 slide to the second force-bearing part, so as to prepare for the next reverse pulling of the first lever GG05 and the center axis ZXZ. In this way, when the first electromagnet is energized again, the first iron core CT1.2 will drive the connecting rod LG01 to move to the right, and pull the first lever GG05 and the center axis ZXZ to rotate in the opposite direction, driving the flip lever GG01 to rotate counterclockwise to the first rotation position, so that the conversion switch is switched to the common side power closing state; when the first electromagnet is powered off, the first return spring CT1.3 drives the first iron core CT1.2 to move to the right, and makes the first linkage part LG01.1 of the connecting rod LG01 slide to the first force-bearing part, so as to prepare for the next positive pulling of the first lever GG05 and the center axis ZXZ.

[0109] In addition, an avoidable blocking mechanism can be provided on the rotation path of the flip lever GG01 to limit the flip lever GG01 from rotating to a maximum angle, thereby limiting the first gear CL1, the second gear CL2, and the moving contact to the double-open state, so that the switching switch can achieve: switching between the normal side power closed state and the double-open state, switching between the standby side power closed state and the double-open state, and switching between the standby side power closed state and the normal side power closed state after the blocking mechanism is avoided.

[0110] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0111] In the description of this application, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, if the terms "first", "second", etc. appear in the description of this application, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0112] In addition, if the terms "horizontal" or "vertical" appear in the description of this application, it does not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0113] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0114] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A transmission structure of a transfer switch, characterized in that: include: Second side board (YCB); A turning lever (GG01) is rotatably arranged on the second side plate (YCB); An elastic energy storage component (TXCN) is used for transmission connection between the flip lever (GG01) and the driving mechanism (CT1) of the conversion switch; A first gear (CL1) is synchronously rotatably connected to the flip lever (GG01); A second gear (CL2) is rotatably disposed on the second side plate (YCB) and meshes with the first gear (CL1), the pitch circle of the first gear (CL1) is larger than the pitch circle of the second gear (CL2), and the second gear (CL2) is drivingly connected to the moving contact of the conversion switch; Wherein, the elastic energy storage component (TXCN) is configured to store and release elastic potential energy, and the flip lever (GG01) is configured to rotate when the elastic energy storage component (TXCN) releases the elastic potential energy, so as to drive the moving contact to rotate through the first gear (CL1) and the second gear (CL2) to switch the switch state.

2. The transmission structure of the transfer switch according to claim 1, characterized in that: The second side plate (YCB) is provided with a second notch (YCB.2), the flip lever (GG01) is provided with a flip lever protrusion (Z12), and the first gear (CL1) is provided with a first gear linkage part (CL1.2); The flip lever (GG01) and the first gear (CL1) are respectively arranged on both sides of the second side plate (YCB) and have corresponding positions. The flip lever protrusion (Z12) can be slidably inserted into the second slot (YCB.2) and connected to the first gear linkage part (CL1.2).

3. The transmission structure of the transfer switch according to claim 2, characterized in that: The transmission structure also includes: The central axis (ZXZ) is passed through the second side plate (YCB), the flip lever (GG01) and the first gear (CL1) are coaxially rotatably arranged on the central axis (ZXZ), and the second slot (YCB.2) is constructed as an arc slot extending circumferentially around the central axis (ZXZ).

4. The transmission structure of the transfer switch according to claim 3, characterized in that: The first gear (CL1) is provided with at least two first gear linkage parts (CL1.2), one of the at least two first gear linkage parts (CL1.2) is located on a side of the central axis (ZXZ) close to the second gear (CL2), and the other is located on a side of the central axis (ZXZ) far from the second gear (CL2); The flip lever (GG01) is correspondingly provided with at least two flip lever protrusions (Z12), and the second side plate (YCB) is correspondingly provided with at least two second notches (YCB.2).

5. The transmission structure of the transfer switch according to claim 1, characterized in that: The second gear (CL2) has a first position, a second position and a third position. When the second gear (CL2) is in the first position, the conversion switch is in a state where the power supply on the common side is closed. When the second gear (CL2) is in the second position, the conversion switch is in a double-open state. When the second gear (CL2) is in the third position, the conversion switch is in a state where the power supply on the standby side is closed. The first gear (CL1) is configured to reciprocate under the driving of the flip lever (GG01) so that the second gear (CL2) switches among the first position, the second position and the third position.

6. The transmission structure of the transfer switch according to claim 5, characterized in that: The second gear (CL2) comprises a first step portion (CL1 a) and a second step portion (CL1 b) arranged along its own axial direction, the first step portion (CL1 a) is provided with a second tooth (CL2.2), the second step portion (CL1 b) is provided with a notch, and two ends of the notch form a first stop portion (CL2.4) and a second stop portion (CL2.5); The transmission structure of the conversion switch also includes: a sixth lever (GG08) which is evasibly arranged on the rotation path of the first stopper (CL2.4) to position the second gear (CL2) at a first position; The seventh lever (B03) can be evasively arranged on the rotation path of the second stopper (CL2.5) to position the second gear (CL2) at the third position.

7. The transmission structure of the transfer switch according to claim 6, characterized in that: The notch is offset from a projection of the second tooth (CL2.2) along the rotation axis direction of the second gear (CL2).

8. The transmission structure of the transfer switch according to claim 1, characterized in that: The first gear (CL1) includes a first sector-shaped portion (CL2a), the arc surface of the first sector-shaped portion (CL2a) is provided with a first tooth (CL1.3), the second gear (CL2) is provided with a second tooth (CL2.2), and the first tooth (CL1.3) is meshed with the second tooth (CL2.2).

9. The transmission structure of the transfer switch according to claim 8, characterized in that: The first gear (CL1) includes a second sector portion (CL1b), the second sector portion (CL1b) is connected to a side of the first sector portion (CL2a) away from the second gear (CL2), and the second sector portion (CL1b) is used to display the position of the second gear (CL2).

10. The transmission structure of the transfer switch according to claim 1, characterized in that: The elastic energy storage component (TXCN) comprises a flip spring (TH01) and a first transmission member (B02), wherein the first transmission member (B02) and the flip lever (GG01) are coaxially arranged and can rotate relative to each other, the first transmission member (B02) is provided with a flip spring fixing portion (B02.2), the flip lever (GG01) is provided with a flip spring mounting portion (GG01.2), and the two ends of the flip spring (TH01) are respectively connected to the flip spring fixing portion (B02.2) and the flip spring mounting portion (GG01.2); The first transmission member (B02) and the flip lever (GG01) rotate around the central axis (ZXZ), the flip spring mounting portion (GG01.2) has a first connecting line (BnB) with the central axis (ZXZ), the flip spring fixing portion (B02.2) reciprocates along the central axis (ZXZ) from one side to the other side of the first connecting line (BnB), and the flip spring (TH01) is configured to store energy when the flip spring fixing portion (B02.2) is located on the first connecting line (BnB), and to drive the flip lever (GG01) to rotate in the opposite direction relative to the first transmission member (B02) when the flip spring fixing portion (B02.2) deviates from the first connecting line (BnB).

11. The transmission structure of the transfer switch according to claim 10, characterized in that: The transmission structure of the conversion switch also includes: A first lever (GG05) is coaxially fixed with the first transmission member (B02) and is provided with a third slide groove (GG05.2), and two ends of the third slide groove (GG05.2) are provided with a first force-bearing portion and a second force-bearing portion; A connecting rod (LG01), comprising a first linkage part (LG01.1) and a second linkage part (LG01.2), wherein the second linkage part (LG01.2) is connected to a driving mechanism (CT1) of the conversion switch, and the first linkage part (LG01.1) is slidably connected to the third sliding groove (GG05.2); The first linkage part (LG01.1) selectively applies a force to the first force-bearing part and the second force-bearing part to drive the flip lever (GG01) to rotate in two opposite directions.

12. A transfer switch, characterized in that: include: Moving contact; The transmission structure of the conversion switch according to any one of claims 1 to 11.

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