Closing position locking device

Abstract

The embodiment of the utility model discloses a closing position locking device, which is used in a change-over switch and comprises a second side plate, the second gear is connected with a moving contact of the change-over switch and can rotate in a reciprocating manner to enable the change-over switch to be at least switched between a first switching-on state and a second switching-on state; the sixth lever is configured to abut against the second gear in the first closing state so as to limit the second gear to rotate in the direction of the second closing state; the seventh lever is configured to abut against the second gear in the second closing state so as to limit the second gear to rotate in the direction of the first closing state; the second turnover plate is configured to abut against the seventh lever in the first closing state so that the seventh lever can be separated from the second gear, and abut against the sixth lever in the second closing state so that the sixth lever can be separated from the second gear. The beneficial effects of the utility model are that when the product is switched on, the switching-on position can be locked; meanwhile, locking is released when opening is needed.

Description

Technical Field

[0001] The present application relates to the technical field of low-voltage electrical appliances, and in particular to a closing position locking device. 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] When the automatic transfer switch is in the closed state, if a large current suddenly flows through the contact system, the contact between the moving contact and the static contact tends to be reversed and repelled due to the electromagnetic repulsion, causing instantaneous opening. To prevent this from happening, it is necessary to lock the closing position when the product is closed; at the same time, release the lock on the contact system when opening is required. Utility Model Content

[0004] The main purpose of the utility model is to provide a closing position locking device, aiming to solve the above-mentioned problems existing in the prior art.

[0005] To achieve the above object, the utility model provides a closing position locking device, which is characterized in that it is used in a transfer switch and includes:

[0006] Second side panel;

[0007] A second gear, disposed on the second side plate, connected to the moving contact of the conversion switch, and capable of reciprocating rotation to switch the conversion switch at least between a first closing state and a second closing state;

[0008] a sixth lever rotatably disposed on the second side plate; the sixth lever being configured to abut against the second gear in the first closing state to limit the second gear from rotating in the direction of the second closing state;

[0009] a seventh lever rotatably disposed on the second side plate; the seventh lever being configured to abut against the second gear in the second closing state to limit the second gear from rotating in the direction of the first closing state;

[0010] A second flip plate is movably arranged on the second side plate; the second flip plate is configured to abut against the seventh lever in the first closing state to separate the seventh lever from the second gear, and to abut against the sixth lever in the second closing state to separate the sixth lever from the second gear.

[0011] In some embodiments,

[0012] The closing position locking device also includes:

[0013] The energy storage mechanism is connected to the second gear and the second flip plate, and when the second flip plate switches positions, the energy is first stored and then released to drive the second gear to rotate.

[0014] In some embodiments,

[0015] The closing position locking device also includes:

[0016] A first gear connected to the energy storage mechanism and meshing with the second gear; a pitch circle radius of the first gear is greater than a pitch circle radius of the second gear;

[0017] The energy storage mechanism drives the first gear to rotate so as to drive the second gear to rotate.

[0018] In some embodiments,

[0019] The closing position locking device also includes:

[0020] A central axis passes through the second side plate; the second flip plate is synchronously rotatably sleeved on the central axis;

[0021] The energy storage mechanism comprises:

[0022] A flip lever is rotatably sleeved on the central shaft and fixedly connected to the first gear;

[0023] A first flip plate is synchronously rotatably sleeved on the central axis and has a first flip position and a second flip position;

[0024] A flip spring connecting the first flip plate and the flip lever;

[0025] When the first flip plate is located at the first flip position, the flip spring has a tendency to make the flip lever drive the second gear to rotate in the direction of the first closing state;

[0026] When the first flip plate is located at the second flip position, the flip spring has a tendency to cause the flip lever to drive the second gear to rotate in the direction of the second closing state.

[0027] In some embodiments,

[0028] The closing position locking device also includes:

[0029] The driving mechanism is connected to the central shaft and is configured to drive the first flip plate to reciprocate between the first flip position and the second flip position.

[0030] In some embodiments,

[0031] The second gear also includes:

[0032] Second tooth;

[0033] The fan-shaped protrusion is coaxial with the second tooth and axially offset; the first stopper and the second stopper are formed at two circumferential ends of the fan-shaped protrusion;

[0034] The sixth lever comprises a sixth lever limiting portion; the sixth lever limiting portion is configured to abut against the first stop portion in the first closing state to limit the second gear from rotating in the direction of the second closing state;

[0035] The seventh lever includes a seventh lever limiting portion; the seventh lever limiting portion is configured to abut against the second stop portion in the second closing state to limit the second gear from rotating in the direction of the first closing state.

[0036] In some embodiments,

[0037] The sixth lever and the seventh lever are arranged on the second side plate so as to be resettable and rotatable;

[0038] The conversion switch also has a double open state; the rotation position of the second gear in the double open state is between its two rotation positions in the first closed state and the second closed state;

[0039] When switching from the first closing state to the double opening state, the second flip plate abuts against the sixth lever to separate the sixth lever limiting portion from the first stop portion, and the seventh lever limiting portion returns and rotates to abut against the arc surface of the fan-shaped protrusion;

[0040] When switching from the second closing state to the double opening state, the second flip plate abuts against the seventh lever to separate the seventh lever limiting portion from the second stop portion, and the sixth lever limiting portion returns and rotates to abut against the arc surface of the fan-shaped protrusion.

[0041] In some embodiments,

[0042] The second flip plate includes a first flip linkage portion and a second flip linkage portion;

[0043] In the first closing state, the first flip linkage part avoids the sixth lever, and the second flip linkage part abuts against and rotates the seventh lever;

[0044] In the second closing state, the second flip linkage part avoids the seventh lever, and the first flip linkage part abuts against and rotates the sixth lever.

[0045] In some embodiments,

[0046] The second gear also includes a second gear linkage portion; the second gear linkage portion is used to link the moving contact.

[0047] In some embodiments,

[0048] The second side plate is provided with a sixth lever limiting shaft and a seventh lever limiting shaft;

[0049] The sixth lever comprises a fifth notch; the sixth lever limiting shaft cooperates with the fifth notch to limit the rotation range of the sixth lever;

[0050] The seventh lever comprises a sixth notch, and the seventh lever limiting shaft cooperates with the sixth notch to limit the rotation range of the seventh lever.

[0051] The closing position locking device proposed in the present application locks the second gear through the sixth lever and the seventh lever respectively in the two closing positions to prevent the second gear from reversing due to the electromagnetic repulsion during closing and causing the opening of the switch. When the switch needs to be opened, the second flip plate rotates the sixth lever or the seventh lever to release the lock on the second gear.

[0052] The second flip plate and the second gear are linked through an energy storage mechanism, so that the rotation of the second gear lags behind that of the second flip plate. The second flip plate is unlocked first and then the second gear rotates, and the whole process is smoother.

[0053] The staggered design of the second teeth and the fan-shaped protrusion of the second gear, together with the limiting parts of the sixth lever and the seventh lever, enables the closing position locking device to smoothly switch to any closing state when in the double-open state. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] 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.

[0055] The methods, systems and / or programs in the accompanying drawings will be further described according to exemplary embodiments. These exemplary embodiments will be described in detail with reference to the drawings. These exemplary embodiments are non-limiting exemplary embodiments, wherein reference numerals represent similar mechanisms in the various views of the accompanying drawings.

[0056] Figure 1 This is a schematic diagram of the structure of a closing position locking device involved in some embodiments of the present application;

[0057] Figure 2 A schematic structural diagram of a closing position locking device according to some embodiments of the present application from another perspective;

[0058] Figure 3 This is a schematic structural diagram of the front side of a first side panel involved in some embodiments of the present application;

[0059] Figure 4 This is a schematic structural diagram of the back side of the first side plate involved in some embodiments of the present application;

[0060] Figure 5 This is a schematic structural diagram of the front side of the second side plate involved in some embodiments of the present application;

[0061] Figure 6 This is a schematic diagram of the structure of a first electromagnet involved in some embodiments of the present application;

[0062] Figure 7 This is a schematic diagram of the structure of the connecting rod involved in some embodiments of the present application;

[0063] Figure 8 This is a schematic diagram of the structure of a first lever involved in some embodiments of the present application;

[0064] Fig. 9 This is a schematic diagram of the structure of the central axis involved in some embodiments of the present application;

[0065] Fig.10 It is a structural schematic diagram of the closing position locking device involved in some embodiments of the present application when the common side power supply is closed;

[0066] Fig.11 For Fig.10 Based on the above, a schematic diagram of the structure of the closing position locking device during the power-on process of the first electromagnet;

[0067] Fig.12 For Fig.11 Based on the above, a schematic diagram of the structure of the closing position locking device after the first electromagnet continues to be energized;

[0068] Fig.13 For Fig.12 Based on the above, a schematic diagram of the structure of the closing position locking device during the power-off process of the first electromagnet;

[0069] Fig.14 for Fig.13 Enlarged view of the middle link and the first lever;

[0070] Fig.15 For Fig.13Based on the above, a schematic diagram of the structure of the closing position locking device after the first electromagnet continues to be powered off;

[0071] Fig.16 For Fig.15 Based on the above, a schematic diagram of the structure of the closing position locking device during the power-on process of the first electromagnet;

[0072] Fig.17 For Fig.16 Based on the above, a schematic diagram of the structure of the closing position locking device when the first electromagnet continues to be energized;

[0073] Fig.18 For Fig.17 Based on the above, a schematic diagram of the structure of the closing position locking device during the power-off process of the first electromagnet;

[0074] Fig.19 for Fig.18 Enlarged view of the middle link and the first lever;

[0075] Fig. 20 This is a schematic diagram of the structure of the first flip plate involved in some embodiments of the present application;

[0076] Fig.21 This is a schematic diagram of the structure of a flip lever involved in some embodiments of the present application;

[0077] Fig. 22 This is a schematic diagram of the structure of the second flip plate involved in some embodiments of the present application;

[0078] Fig.23 It is a schematic diagram of the positions of the flip lever, the first flip plate, and the second flip plate in the closing position locking device when the common side power supply involved in some embodiments of the present application is closed;

[0079] Fig.24 For Fig.23 A schematic diagram of the structure of the energy storage mechanism moving to the dead point position;

[0080] Fig.25 For Fig.24 A schematic diagram of the structure after the energy storage mechanism moves past the dead point position;

[0081] Fig.26 It is a schematic diagram of the positions of the flip lever, the first flip plate, and the second flip plate in the closing position locking device when the backup side power supply is closed in some embodiments of the present application;

[0082] Fig. 27 For Fig.26 A schematic diagram of the structure of the energy storage mechanism moving to the dead point position;

[0083] Fig.28This is a schematic diagram of the structure of the first gear involved in some embodiments of the present application;

[0084] Fig.29 This is a schematic diagram of the structure of the second gear involved in some embodiments of the present application;

[0085] Fig.30 This is a structural schematic diagram of the front side of the second side panel when the common side power supply involved in some embodiments of the present application is closed;

[0086] Fig.31 For Fig.30 A schematic diagram of the structure of the front side of the second side panel when the second side panel is operated to the double split state;

[0087] Fig.32 This is a structural schematic diagram of the front side of the second side panel when the backup side power supply involved in some embodiments of the present application is closed;

[0088] Fig.33 This is a schematic diagram of the structure of a sixth lever involved in some embodiments of the present application;

[0089] Fig.34 This is a schematic diagram of the structure of the seventh lever involved in some embodiments of the present application;

[0090] Fig.35 For Fig.32 A schematic structural diagram of the front side of the second side panel when the base runs to the double-split state. DETAILED DESCRIPTION

[0091] 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.

[0092] 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.

[0093] 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.

[0094] 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.

[0095] 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.

[0096] 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.

[0097] Example

[0098] The closing position locking device in the embodiment of the present application is applied in a transfer switch. The transfer switch can be connected to the common side power supply or the standby side power supply to have a first closing state, a second closing state, and a double opening state. Optionally, when the transfer switch is in the first closing state, the moving contact contacts the static contact at the common side power supply end, and the common side power supply is closed; when it is in the second closing state, the moving contact contacts the static contact at the standby side power supply end, and the standby side power supply is closed; when it is in the double opening state, the moving contact is separated from both static contacts, and the common side power supply and the standby side power supply are opened.

[0099] Figure 1 and Figure 2 It is a structural diagram of the closing position locking device in the embodiment of the present application. The closing position locking device includes a first side plate ZCB, a second side plate YCB, a central axis ZXZ, a first electromagnet CT1, a connecting rod LG01, a first lever GG05, an energy storage mechanism, a second flip plate B04, a first gear CL1, a second gear CL2, a sixth lever GG08, a seventh lever B03, etc.

[0100] [Electromagnetic drive structure]

[0101] Figure 3 : is a structural schematic diagram of the front side of the first side plate ZCB in the embodiment of the present application (i.e., the side of the first side plate ZCB facing away from the second side plate YCB), Figure 4 It is a structural schematic diagram of the back side of the first side panel ZCB (ie, the side of the first side panel ZCB facing the second side panel YCB) in the embodiment of the present application.

[0102] Figure 5 2 is a schematic structural diagram of the front side of the second side plate YCB (i.e., the side of the second side plate YCB facing away from the first side plate ZCB) in the embodiment of the present application. Figure 4 and Figure 5 As shown, the back side of the first side plate ZCB (i.e., the side of the first side plate ZCB facing the second side plate YCB) is fixedly provided with a first flip limit axis Z03 and a second flip limit axis Z03', etc., and a through hole is provided at a corresponding position on the second side plate YCB. The first side plate ZCB and the second side plate YCB are fixed together back to back by the aforementioned axis and through hole. Figure 3 As shown, a mounting plate ZCB.3 is also provided on the first side plate ZCB, and the mounting plate ZCB.3 extends vertically from the surface of the first side plate ZCB.

[0103] Figure 6It is a schematic diagram of the structure of the first electromagnet CT1 in the embodiment of the present application. The first electromagnet CT1 includes a first magnetic yoke CT1.1, a first iron core CT1.2, and a first return spring CT1.3. The first electromagnet CT1 is fixed to the mounting plate ZCB.3 through the first magnetic yoke CT1.1. The first return spring CT1.3 is located inside the first magnetic yoke CT1.1, the first iron core CT1.2 is connected to the first return spring CT1.3, and the first iron core CT1.2 partially passes through the first magnetic yoke CT1.1. When the first electromagnet CT1 is powered off, the first iron core CT1.2 is relatively pushed out under the elastic force of the first return spring CT1.3. When the first electromagnet CT1 is powered on, the first iron core CT1.2 overcomes the elastic force of the first return spring CT1.3 under the action of the magnetic force, thereby relatively retracting. The first iron core CT1.2 has a first magnet linkage position CT1.2.1 and a first spring installation position CT1.2.2 at one end away from the first return spring CT1.3, wherein the first magnet linkage position CT1.2.1 is on the side of the first spring installation position CT1.2.2 away from the first return spring CT1.3. It can be understood that in other optional embodiments, the first electromagnet CT1 can be replaced by a first drive mechanism, and the first drive mechanism can be other mechanisms that realize the linear reciprocating movement function, such as an electric telescopic rod, etc. The telescopic end of the first drive mechanism has a linkage position and an installation position to respectively play the same role as the first magnet linkage position CT1.2.1 and the first spring installation position CT1.2.2.

[0104] Figure 7It is a structural schematic diagram of the connecting rod LG01 in the embodiment of the present application. The connecting rod LG01 includes a first linkage part LG01.1, a second linkage part LG01.2, and a first spring mounting axis Z18. The first linkage part LG01.1 and the second linkage part LG01.2 are respectively located at the two ends of the connecting rod LG01. The first spring mounting axis Z18 is located between the first linkage part LG01.1 and the second linkage part LG01.2 and is closer to the first linkage part LG01.1. The second linkage part LG01.2 is rotatably connected to the first magnet linkage position CT1.2.1 so that the connecting rod LG01 can rotate around the first magnet linkage position CT1.2.1. As an optional rotation connection method, the second linkage part LG01.2 and the first magnet linkage position CT1.2.1 are both through holes, and the two through holes are aligned with each other and then passed through by the shaft. One end of the first spring TH04 is fixed on the first spring mounting position CT1.2.2, and the other end is fixed on the first spring mounting axis Z18, and the first spring TH04 is in a stretched state. It should be noted that, except for the reset spring in the driving components such as the electromagnet, when the other springs are fixed on the first side plate ZCB and the second side plate YCB, one end of the spring is fixed with the shaft sleeve on the first side plate ZCB and the second side plate YCB; when the other springs are fixed on other structures such as the lever, the connecting rod LG01 and the iron core end of the electromagnet, one end of the spring can be fixed with the shaft sleeve on the other structure, or one end of the spring can be fixed with the hole or gap on the other structure, etc. For example, the first spring mounting position CT1.2.2 can be a shaft or a hole. In some optional embodiments, the first spring mounting shaft Z18 can also be replaced by a hole. The subsequent spring fixing methods are similar and will not be repeated.

[0105] Figure 8It is a schematic diagram of the structure of the first lever GG05 in the embodiment of the present application. The first lever GG05 includes a first lever mounting portion GG05.1 and a third slot GG05.2. The third slot GG05.2 includes a first slot section GG05.2.1, a second slot section GG05.2.2 and a third slot section GG05.2.3 connected in sequence. The first slot section GG05.2.1 is deflected at a certain angle relative to the second slot section GG05.2.2, and the third slot section GG05.2.3 is deflected at a certain angle relative to the second slot section GG05.2.2. Specifically, the first slot section GG05.2.1 has a first limit end GG05.2.1a and a second limit end GG05.2.1b, the first limit end GG05.2.1a is connected to one end of the second slot section GG05.2.2, and the first slot section GG05.2.1 extends from the first limit end GG05.2.1a to the side of the second slot section GG05.2.2; the third slot section GG05.2.3 has a third limit end GG05.2.3a and the first limit end GG05.2.3b. The fourth limit end GG05.2.3b, the third limit end GG05.2.3a is connected to the other end of the second slot section GG05.2.2, and the third slot section GG05.2.3 extends from the third limit end GG05.2.3a to the same side of the second slot section GG05.2.2; the second limit end GG05.2.1b and the fourth limit end GG05.2.3b are both located on the side close to the first electromagnet CT1 relative to the second slot section GG05.2.2. The first linkage part LG01.1 of the connecting rod LG01 moves in the third notch GG05.2 to realize the linkage between the connecting rod LG01 and the first lever GG05.

[0106] Fig. 9 : is a schematic diagram of the structure of the central axis ZXZ in the embodiment of the present application. The central axis ZXZ is a stepped axis, which includes 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 in the axial direction. The cross-sectional dimensions between two adjacent sections change to form a shaft shoulder. Figure 3-Figure 5As shown, a first through hole ZCB.1 is provided on the first side plate ZCB, and a second through hole YCB.1 is provided on the second side plate YCB. The central axis ZXZ is located between the first side plate ZCB and the second side plate YCB. Specifically, the first section ZXZ.1 of the central axis ZXZ passes through the first through hole ZCB.1, and the second section ZXZ.2 passes through the second through hole YCB.1. The first lever GG05 is fixed to the first section ZXZ.1 of the central axis ZXZ through the first lever mounting portion GG05.1, so that the first lever GG05 can rotate synchronously with the central axis ZXZ. Optionally, the cross section of the first section ZXZ.1 of the central axis ZXZ is non-circular, and the first lever mounting portion GG05.1 is a through hole of the same shape as the cross section of the first section ZXZ.1, so that the first section ZXZ.1 can pass through the first lever mounting portion GG05.1 and drive the first lever GG05 to rotate synchronously when rotating.

[0107] Please refer to Fig.10 , when the transfer switch is in the common side power supply closed, the first lever GG05 is in Fig.10 The first electromagnet CT1 is powered off when the first electromagnet CT1 is at the maximum clockwise rotation angle position. At this time, the first iron core CT1.2 is at the maximum position of its ejection stroke under the action of the first return spring CT1.3. The first iron core CT1.2 links the connecting rod LG01 and makes the first linkage part LG01.1 of the connecting rod LG01 located in the first slot section GG05.2.1 of the third notch GG05.2. Under the combined force of the first spring TH04 and the first return spring CT1.3, the first linkage part LG01.1 is located at the first limit end GG05.2.1a of the first slot section GG05.2.1.

[0108] like Fig.11 As shown, in Fig.10 On the basis of , the first electromagnet CT1 is energized, and the first iron core CT1.2 overcomes the thrust of the first return spring CT1.3 and retracts to the left. The first iron core CT1.2 drives the connecting rod LG01 to move, so that the first linkage part LG01.1 moves from the first limit end GG05.2.1a to the second limit end GG05.2.1b. Fig.12 As shown, the first electromagnet CT1 remains energized, and the first iron core CT1.2 continues to pull the connecting rod LG01; at the same time, the first linkage part LG01.1 abuts against the first pull rod at the second limit end GG05.2.1b, and the connecting rod LG01 pulls the first lever GG05 Fig.12 The first lever GG05 is rotated counterclockwise to a maximum angle position. At this time, the first lever GG05 is locked at the maximum angle position by other structures.

[0109] like Fig.13 As shown, in Fig.12On the basis of this, the first electromagnet CT1 is de-energized, and the first iron core CT1.2 is pushed out to the right and reset under the action of the first reset spring CT1.3. Under the combined force of the first spring TH04 and the first reset spring CT1.3, the first linkage part LG01.1 moves from the second limit end GG05.2.1b to the first limit end GG05.2.1a. At this time, the angle between the center connecting line AA of the first linkage part LG01.1 and the second linkage part LG01.2 of the connecting rod LG01 and the second groove section GG05.2.2 is greater than 90 degrees and less than 180 degrees. Please refer to Fig.14 , the elastic force Fj acting on the first linkage part LG01.1 is also much greater than the elastic force Ft of the first spring TH04. Fj and Ft are decomposed along the direction of the second slot section GG05.2.2. The component F of Fj downward along the second slot section GG05.2.2 (i.e., toward the third limit end GG05.2.3a of the third slot section GG05.2.3) is much greater than the component F′ of Ft upward along the second slot section GG05.2.2. Therefore, Fig.15 As shown, the first linkage portion LG01.1 will slide downward along the second groove section GG05.2.2 until it contacts the third limit end GG05.2.3a.

[0110] like Fig.16 As shown, in Fig.15 On the basis of , the first electromagnet CT1 is energized, and the first iron core CT1.2 overcomes the thrust of the first return spring CT1.3 and retracts to the left. The first iron core CT1.2 drives the connecting rod LG01 to move, so that the first linkage part LG01.1 moves from the third limit end GG05.2.3a to the fourth limit end GG05.2.3b. Fig.17 As shown, the first electromagnet CT1 remains energized, and the first iron core CT1.2 continues to pull the connecting rod LG01; at the same time, the connecting rod LG01 pulls the first lever GG05 at the fourth limit end GG05.2.3b by the first linkage part LG01.1 abutting against the first pull rod. Fig.17 The first lever GG05 is rotated clockwise to a maximum angle position. At this time, the first lever GG05 is locked at the maximum angle position by other structures.

[0111] like Fig.18 As shown, in Fig.17On the basis of this, the first electromagnet CT1 is de-energized, and the first iron core CT1.2 is pushed out to the right and reset under the action of the first reset spring CT1.3. Under the combined force of the first spring TH04 and the first reset spring CT1.3, the first linkage part LG01.1 moves from the fourth limit end GG05.2.3b to the third limit end GG05.2.3a. At this time, the angle between the center connecting line AA of the first linkage part LG01.1 and the second linkage part LG01.2 of the connecting rod LG01 and the second groove section GG05.2.2 is greater than 90 degrees and less than 180 degrees. Please refer to Fig.19 , the elastic force Fj acting on the first linkage part LG01.1 is also much greater than the elastic force Ft of the first spring TH04. Fj and Ft are decomposed along the direction of the second slot section GG05.2.2. The upward component F of Fj along the second slot section GG05.2.2 (i.e., the direction toward the first limit end GG05.2.1a of the third slot section GG05.2.3) is much greater than the downward component F′ of Ft along the second slot section GG05.2.2. Therefore, Fig.10 As shown, the first linkage portion LG01.1 will slide upward along the second groove section GG05.2.2 until it contacts the first limit end GG05.2.1a.

[0112] Figure 10-Figure 18 The process in the process is repeated and circulated, and the first iron core CT1.2 that completes the unidirectional movement makes the first lever GG05 rotate back and forth clockwise and counterclockwise, thereby driving the central axis ZXZ to rotate back and forth.

[0113] [Energy storage flip structure]

[0114] The energy storage mechanism includes a flip lever GG01, a first flip plate B02, and a flip spring. The flip spring connects the first flip plate B02 and the flip lever GG01. In this embodiment, there are two flip springs, namely, a first flip spring TH01 and a second flip spring TH01′. It can be understood that on the basis of ensuring that the functions of the first flip plate B02 and the flip lever GG01 remain unchanged, the number of flip springs in some optional embodiments can be less or more.

[0115] like Fig. 20As shown, the first flip plate B02 includes a first flip plate mounting portion B02.1 in the middle position. The first flip plate B02 is fixed to the fifth section ZXZ.5 of the central axis ZXZ through the first flip plate mounting portion B02.1, so that the first flip plate B02 can rotate synchronously with the central axis ZXZ. Optionally, the cross section of the fifth section ZXZ.5 of the central axis ZXZ is non-circular, and the first flip plate mounting portion B02.1 is a through hole with the same shape as the cross section of the fifth section ZXZ.5, so that the fifth section ZXZ.5 can pass through the first flip mounting portion and drive the first flip plate B02 to rotate synchronously when rotating. The first flip plate B02 is provided with a first flip spring fixing portion B02.2 and a second flip spring fixing portion B02.3 on opposite sides of the first flip plate mounting portion B02.1.

[0116] like Fig.21 As shown, the flip lever GG01 includes a flip lever mounting hole GG01.1 in the middle position. The flip lever GG01 is installed on the fourth section ZXZ.4 of the central axis ZXZ located between the first side plate ZCB and the second side plate YCB through the flip lever mounting hole GG01.1, so that the flip lever GG01 can rotate around the central axis ZXZ, and the rotation of the flip lever GG01 and the central axis ZXZ is relatively independent. The flip lever GG01 has two arms extending outward from opposite sides of the flip lever mounting hole GG01.1. The ends of the two arms are respectively provided with a first flip spring mounting portion GG01.2 and a second flip spring mounting portion GG01.3. The first flip spring mounting portion GG01.2 corresponds to the first flip spring fixing portion B02.2 of the first flip plate B02, and is respectively used to fix the two ends of the first flip spring TH01. The second flip spring mounting portion GG01.3 corresponds to the second flip spring fixing portion B02.3 of the first flip plate B02, and is used to fix the two ends of the second flip spring TH01'. The flip lever GG01 is provided with a flip lever limiting axis Z13 on the side facing the first side plate ZCB. Figure 3 As shown, the first side plate ZCB is provided with a first notch ZCB.2 to accommodate the flip lever limit axis Z13. When the flip lever GG01 rotates, the flip lever limit axis Z13 passes through the first notch ZCB.2 and moves in the first notch ZCB.2. The flip lever GG01 is provided with a flip lever protrusion Z12 on the side facing the second side plate YCB. Figure 5As shown, a second notch YCB.2 is provided on the second side plate YCB to accommodate the development lever protrusion. When the flip lever GG01 rotates, the flip lever protrusion Z12 passes through the second notch YCB.2 and moves in the second notch YCB.2. Optionally, the number of the flip lever protrusion Z12 and the second notch YCB.2 are both two, the two flip lever protrusions Z12 are symmetrically arranged relative to the flip lever mounting hole GG01.1, and the two second notches YCB.2 are symmetrically arranged relative to the second through hole YCB.1.

[0117] like Fig. 22 As shown, the second flip plate B04 includes a second flip plate mounting portion B04.1 in the middle position. The second flip plate B04 is fixed to the second section ZXZ.2 of the center axis ZXZ by the second flip plate mounting portion B04.1, so that the second flip plate B04 can rotate synchronously with the center axis ZXZ. Optionally, the cross-section of the second section ZXZ.2 of the center axis ZXZ is non-circular, and the second flip plate mounting portion B04.1 is a through hole of the same shape as the cross-section of the second section ZXZ.2, so that the second section ZXZ.2 can pass through the second flip plate mounting portion B04.1 and drive the second flip plate B04 to rotate synchronously when rotating. The second flip plate B04 is provided with a first flip limit portion B04.2 and a second flip limit portion B04.3 along the circumferential direction on the outer side of the second flip plate mounting portion B04.1. The first flip limit portion B04.2 and the second flip limit portion B04.3 are radial protrusions. As shown Figure 5 As shown, a second flip plate limiting axis Z10 is provided on the front of the second side plate YCB. The second flip plate limiting axis Z10 is located between the first flip limiting portion B04.2 and the second flip limiting portion B04.3 in the circumferential direction. When the second flip plate B04 rotates with the central axis ZXZ, the second flip plate limiting axis Z10 limits the maximum counterclockwise and clockwise rotation positions of the second flip plate B04 and the central axis ZXZ by abutting against the first flip limiting portion B04.2 and the second flip limiting portion B04.3. Optionally, the number of the second flip plate limiting axis Z10 is two and they are symmetrically arranged relative to the second through hole YCB.1; the number of the first flip limiting portion B04.2 and the second flip limiting portion B04.3 are also two respectively, the two first flip limiting portions B04.2 are symmetrically arranged relative to the second flip plate mounting portion B04.1, and the two second flip limiting portions B04.3 are symmetrically arranged relative to the second flip plate mounting portion B04.1.

[0118] Please refer to Fig.23 , from the perspective of the back side of the second side plate YCB, the flip lever GG01 is located between the first flip limit axis Z03 and the second flip limit axis Z03' in the circumferential direction. Fig.23The switching switch in (a) is in the state of closing the power supply on the common side. Since there is an angle between the line connecting the first flip spring fixing part B02.2 and the second flip spring fixing part B02.3 and the line connecting the first flip spring mounting part GG01.2 and the second flip spring mounting part GG01.3, and the first flip spring TH01 and the second flip spring TH01′ are in a compressed state, the first flip spring TH01 and the second flip spring TH01′ both exert elastic force on the first flip plate B02 and the flip lever GG01, and this elastic force makes the first flip plate B02 and the flip lever GG01 tend to rotate in the opposite clockwise direction. Fig.23 From the perspective of (a), the flip lever GG01 is against the first flip limit axis Z03 on the back of the second side plate YCB under the action of elastic force, and the flip lever GG01 is in the maximum position of counterclockwise rotation, that is, the first rotation position. At the same time, the first flip plate B02 has a tendency to rotate clockwise, such as Fig.23 As shown in (b), the first flip plate B02 is connected to the second flip plate B04 through the central axis ZXZ, so that the second flip plate B04 also has a tendency to rotate clockwise, and the first flip limit portion B04.2 of the second flip plate B04 abuts against the second flip plate limit axis Z10 on the front side of the second side plate YCB, and the first flip plate B02 and the second flip plate B04 are at the maximum position of clockwise rotation (with Fig.23 From the perspective of the front of the second side plate YCB in (c), the first flip plate B02 and the second flip plate B04 are in the maximum position of counterclockwise rotation), that is, the first flip plate B02 and the second flip plate B04 are in the first flip position and the third flip position, respectively.

[0119] exist Fig.23 (a), if the first lever GG05 and the central axis ZXZ are linked to rotate counterclockwise (such as Figure 10-12 The first flip plate B02 and the second flip plate B04 also rotate counterclockwise at the same time. During the rotation of the first flip plate B02, the first flip plate B02 gradually compresses the first flip spring TH01 and the second flip spring TH01′, and the first flip spring TH01 and the second flip spring TH01′ begin to store energy. Fig.24As shown, when the line B-Bn connecting the contact point between the first flip plate B02 and the first flip spring TH01 (i.e., the first flip spring fixing part B02.2) and the contact point between the first flip spring TH01 and the flip lever GG01 (i.e., the first flip spring mounting part GG01.2) coincides with the center line CC of the flip lever GG01, the first flip spring TH01 is compressed to the maximum position, and at the same time, the line B'-B'n connecting the contact point between the first flip plate B02 and the second flip spring TH01' (i.e., the second flip spring fixing part B02.3) and the contact point between the second flip spring TH01' and the flip lever GG01 (i.e., the second flip spring mounting part GG01.3) coincides with the center line CC of the flip lever GG01, and the second flip spring TH01' is compressed to the maximum position. At this time, the first flip spring TH01 and the second flip spring TH01' will not apply a rotational force to the first flip plate B02 and the flip lever GG01, and the energy storage mechanism is in a dead point position.

[0120] like Fig.25 As shown, in Fig.24 On the basis of the counterclockwise rotation of the central axis ZXZ, the first flip spring TH01 and the second flip spring TH01′ rotate past the dead point and begin to release the stored energy, prompting the flip lever GG01 to rotate clockwise, thereby disconnecting the power supply on the common side. It can be understood that the first flip spring TH01 and the second flip spring TH01′ also make the first flip plate B02 have a tendency to rotate counterclockwise. Fig.26 As shown, the central axis ZXZ continues to rotate counterclockwise until the second flip limit portion B04.3 of the second flip plate B04 abuts against the second flip plate limit axis Z10, and the first flip plate B02 and the second flip plate B04 are at the maximum position of counterclockwise rotation (if Fig.26 (b) From the perspective of the front of the second side plate YCB, the second flip plate B04 is at the maximum position of clockwise rotation), that is, the first flip plate B02 and the second flip plate B04 are respectively at the second flip position and the fourth flip position; if the flip lever GG01 continues to rotate clockwise until it abuts against the second flip limit axis Z03', the backup side power supply is closed. At this time, the flip lever GG01 is at the maximum position of clockwise rotation, that is, at the second rotation position.

[0121] exist Fig.26 On the basis that the switching switch of the backup side power supply is closed, if the first lever GG05 and the central axis ZXZ are linked to rotate clockwise (such as Figure 15-17The first flip plate B02 and the second flip plate B04 also rotate clockwise at the same time. During the rotation of the first flip plate B02, the first flip plate B02 gradually compresses the first flip spring TH01 and the second flip spring TH01′, and the first flip spring TH01 and the second flip spring TH01′ begin to store energy. Fig. 27 As shown, when the line B-Bn connecting the contact point between the first flip plate B02 and the first flip spring TH01 (i.e., the first flip spring fixing part B02.2) and the contact point between the first flip spring TH01 and the flip lever GG01 (i.e., the first flip spring mounting part GG01.2) coincides with the center line CC of the flip lever GG01, the first flip spring TH01 is compressed to the maximum position, and at the same time, the line B'-B'n connecting the contact point between the first flip plate B02 and the second flip spring TH01' (i.e., the second flip spring fixing part B02.3) and the contact point between the second flip spring TH01' and the flip lever GG01 (i.e., the second flip spring mounting part GG01.3) coincides with the center line CC of the flip lever GG01, and the second flip spring TH01' is compressed to the maximum position. At this time, the first flip spring TH01 and the second flip spring TH01' will not apply a rotational force to the first flip plate B02 and the flip lever GG01, and the energy storage mechanism is in a dead point position.

[0122] exist Fig. 27 On the basis of the central axis ZXZ continues to rotate clockwise, the first flip spring TH01 and the second flip spring TH01′ rotate past the dead point and begin to release the stored energy, prompting the flip lever GG01 to rotate counterclockwise, thereby disconnecting the backup side power supply. It can be understood that the first flip spring TH01 and the second flip spring TH01′ also make the first flip plate B02 have a tendency to rotate clockwise. Fig.23 As shown, the central axis ZXZ continues to rotate clockwise until the first flip limit portion B04.2 of the second flip plate B04 abuts against the second flip plate limit axis Z10, and the first flip plate B02 and the second flip plate B04 are at the maximum position of clockwise rotation (if Fig.23 (b) From the perspective of the front of the second side plate YCB, the second flip plate B04 is at the maximum position of counterclockwise rotation), that is, the first flip plate B02 and the second flip plate B04 are at the first flip position and the third flip position respectively; if the flip lever GG01 continues to rotate counterclockwise until it abuts against the first flip limit axis Z03, the power supply on the common side is closed. At this time, the flip lever GG01 is at the maximum position of counterclockwise rotation, that is, at the first rotation position.

[0123] In this embodiment, the reciprocating rotation of the flip lever GG01 between the first rotation position and the third rotation position is achieved by the reciprocating rotation of the first flip plate B02 between the first flip position and the second flip position and the reciprocating rotation of the second flip plate B04 between the third flip position and the fourth flip position.

[0124] [Gear transmission]

[0125] Fig.28 It is a schematic diagram of the structure of the first gear CL1 in the embodiment of the present application. The first gear CL1 includes a first gear mounting portion CL1.1, a first gear linkage portion CL1.2, and a first tooth CL1.3. The first gear CL1 is mounted on the third section ZXZ.3 of the center axis ZXZ through the first gear mounting portion CL1.1, so that the first gear CL1 can rotate around the center axis ZXZ, and the rotation of the first gear CL1 and the center axis ZXZ is relatively independent. The first gear linkage portion CL1.2 has a plurality of through holes. Optionally, the number of through holes is two and they are respectively located on both sides of the first gear mounting portion CL1.1. Accordingly, as Fig.21 As shown, the flip lever protrusion Z12 has the same number of shafts as the through holes of the first gear linkage part CL1.2, as shown in FIG. Figure 5 As shown, the number of the second notches YCB.2 on the second side plate YCB is the same as the number of through holes of the first gear linkage part CL1.2. The first gear linkage part CL1.2 is fixed to the end of the flip lever protrusion Z12 passing through the second notch YCB.2, so that the first gear CL1 is located on the front of the second side plate YCB and can rotate synchronously with the flip lever GG01.

[0126] Fig.29 2 is a schematic diagram of the structure of the second gear CL2 in the embodiment of the present application. The second gear CL2 includes a second gear mounting portion CL2.1, a second tooth CL2.2, and a second gear linkage portion CL2.3. Figure 5As shown, a second gear mounting shaft Z09 is provided on the second side plate YCB. 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 CL2 realizes linkage with the first gear CL1 by meshing the second tooth CL2.2 with the first tooth CL1.3. The second gear linkage portion CL2.3 links the contact system of the conversion switch through the transmission component to realize the connection and disconnection of the contact system. Optionally, the contact system includes a moving contact, a static contact at the power supply end of the common side, and a static contact at the power supply end of the standby side. The second gear CL2 controls the movement of the moving contact by rotation. Specifically, the second gear CL2 has a first closing position, a second closing position, and a double opening position. The double opening position is located between the first closing position and the second closing position, and the second gear CL2 can reciprocate between the first closing position and the second closing position. When the second gear CL2 is in the first closing position, the second gear CL2 drives the moving contact to contact with the static contact at the power supply end of the common side, realizing the closing state of the power supply on the common side. When the second gear CL2 is in the second closing position, the second gear CL2 drives the moving contact to contact with the static contact at the power supply end of the standby side, realizing the closing state of the power supply on the standby side. When the second gear CL2 is in the double opening position, the second gear CL2 drives the moving contact to separate from both static contacts, realizing the opening state of the power supply on the standby side and the power supply on the common side at the same time.

[0127] like Fig.30 As shown, when the transfer switch is in the state of closing the power supply on the common side, from the front view of the second side plate YCB, flip the lever GG01 ( Fig.30 The first gear CL1 is in the maximum angular position of its clockwise rotation (not shown). Accordingly, the flip lever GG01 links the first gear CL1 through the flip lever protrusion Z12, so that the first gear CL1 is also in the maximum angular position of its clockwise rotation. The first gear CL1 pulls the second gear CL2 through the first tooth CL1.3, so that the second gear CL2 is in the maximum angular position of its counterclockwise rotation and is fixed. The second gear CL2 activates the contact system of the transfer switch through the second gear linkage part CL2.3, and the moving contact contacts the static contact of the common side power supply end, and the common side power supply is closed.

[0128] like Fig.31 As shown, when the switch is in the double split state, flip lever GG01 ( Fig.31The first gear CL1 is in the middle position between the two maximum angle positions of counterclockwise and clockwise rotation (not shown). Accordingly, the flip lever GG01 links the first gear CL1 through the flip lever protrusion Z12, so that the first gear CL1 is also in the middle position between the two maximum angle positions of counterclockwise and clockwise rotation. The first gear CL1 pulls the second gear CL2 through the first tooth CL1.3, so that the second gear CL2 is located in the middle position between the two maximum angle positions of counterclockwise and clockwise rotation and is fixed. The second gear CL2 activates the contact system of the transfer switch through the second gear linkage part CL2.3, and the moving contact is separated from the two static contacts to achieve the double-split state.

[0129] like Fig.32 As shown, when the transfer switch is in the standby side power supply closed state, from the front view of the second side plate YCB, flip lever GG01 ( Fig.32 The first gear CL1 is in the maximum angular position of its counterclockwise rotation (not shown). Accordingly, the flip lever GG01 links the first gear CL1 through the flip lever protrusion Z12, so that the first gear CL1 is also in the maximum angular position of its counterclockwise rotation. The first gear CL1 pulls the second gear CL2 through the first tooth CL1.3, so that the second gear CL2 is in the maximum angular position of its clockwise rotation and is fixed. The second gear CL2 activates the contact system of the transfer switch through the second gear linkage CL2.3, and the moving contact contacts the static contact of the common side power supply end, and the common side power supply is closed.

[0130] In this embodiment, after the rotation angle of the flip lever GG01 is amplified by the first gear CL1 and the second gear CL2, the closing and opening angles of the contact system of the conversion switch are finally obtained to be larger, which is beneficial to improve the safety during the power switching process. At the same time, the pitch circle radius of the first gear CL1 is larger than the pitch circle radius of the second gear CL2. When the conversion switch is in the switching state, the rotation speed of the second gear CL2 is higher than the rotation speed of the first gear CL1, which can improve the speed of the switching state. In addition, when the torque applied to the contact system by the second gear CL2 is constant, since the pitch circle radius of the first gear CL1 is larger, the torque output by the flip lever GG01 is smaller, and the force value requirement of the flip spring (the first flip spring TH01 and the second 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.

[0131] [Closed position lock]

[0132] like Figure 2 and Fig.29As shown, with the rotation axis of the second gear CL2 as a reference, the second gear CL2 also includes a circumferentially arranged fan-shaped protrusion. The fan-shaped protrusion is coaxial with the second tooth CL2.2 and is axially offset, wherein the fan-shaped protrusion is closer to the second side plate YCB relative to the second tooth CL2.2. The circumferential ends of the fan-shaped protrusion fall toward the axis to form a step portion, and the two step portions are respectively the first stop portion CL2.4 and the second stop portion CL2.5.

[0133] like Fig. 22 As shown, the second flip plate B04 also includes two outward protruding parts, namely the first flip linkage part B04.4 and the second flip linkage part B04.5.

[0134] Fig.33 : is a structural diagram of the sixth lever GG08 in the embodiment of the present application. The sixth lever GG08 is arranged on the front of the second side surface so as to be resettable and rotatable. Specifically, 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 reset portion GG08.4, and a sixth lever linkage portion GG08.5. Figure 5 As shown, the second side plate YCB is provided with a sixth lever mounting axis Z01a, a sixth lever limiting axis Z01a′, and a seventh spring mounting axis Z02a. The sixth lever mounting portion GG08.1 is sleeved on the sixth lever mounting axis Z01a, so that the sixth lever GG08 can rotate around the sixth lever mounting axis Z01a. The sixth lever limiting axis Z01a′ 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 Z01a′ 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 resetting portion GG08.4, so that the sixth lever GG08 has a tendency to return to the initial position after rotation.

[0135] Fig.34 : is a schematic diagram of the structure of the seventh lever B03 in the embodiment of the present application. The seventh lever B03 is arranged on the front side of the second side surface so as to be resettable and rotatable. Specifically, 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 reset portion B03.4, and a seventh lever linkage portion B03.5. Figure 5As shown, the second side plate YCB is provided with a seventh lever mounting axis Z01b, a seventh lever limiting axis Z01b′, and an eighth spring mounting axis Z02b. The seventh lever mounting portion B03.1 is sleeved on the seventh lever mounting axis Z01b, so that the seventh lever B03 can rotate around the seventh lever mounting axis Z01b. The seventh lever limiting axis Z01b′ 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 its rotation range by the seventh lever limiting axis Z01b′ 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 resetting portion B03.4, so that the seventh lever B03 has a tendency to return to the initial position after rotation.

[0136] like Fig.30 As shown, when the transfer switch is in the state of closing the power supply on the common side, from the front view of the second side plate YCB, flip the lever GG01 ( Fig.30 (not shown) is at its maximum clockwise rotation angle, the central axis ZXZ, the first flip plate B02 ( Fig.30 The second flip plate B04 is located at the maximum angle position of its respective counterclockwise rotation. The first flip plate B02 is located at the first flip position, and the flip spring has a tendency to make the flip lever GG01 drive the second gear CL2 to rotate in the direction of closing the power supply on the common side. Fig.23 As shown in (c), the first flip limiter B04.2 of the second flip plate B04 contacts and is limited by the second flip plate limiter axis Z10, that is, the second flip plate B04 is located at the third flip position. Fig.30As shown, the first flip linkage part B04.4 of the second flip plate B04 avoids the sixth lever GG08, the first flip linkage part B04.4 does not contact the sixth lever linkage part GG08.5 of the sixth lever GG08, the second flip linkage part B04.5 of the second flip plate 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 to separate the seventh lever limit part B03.2 from the second stop part CL2.5 of the second gear CL2. The flip lever GG01 links the first gear CL1 through the flip lever protrusion Z12, so that the first gear CL1 is at its maximum clockwise rotation angle position, and the first gear CL1 pulls the second gear CL2 through the first tooth CL1.3, so that the rotation position of the second gear CL2 when the power supply of the common side is closed is the maximum counterclockwise rotation angle position. At this time, the sixth lever limiter GG08.2 of the sixth lever GG08 abuts against the first stopper CL2.4 of the second gear CL2 to lock the closing position of the common side power supply. It can be understood that even if the contact between the moving contact and the static contact has a tendency to be repelled due to the electromagnetic repulsion when closing, the sixth lever limiter GG08.2 can also prevent the second gear CL2 from rotating clockwise in the direction of closing the standby side power supply, thereby ensuring the stability of closing the common side power supply.

[0137] like Fig.31 As shown, in Fig.30 On the basis of the rotation of the central axis ZXZ clockwise, the second flip plate B04 also rotates clockwise with the central axis ZXZ. During the rotation process, the first flip linkage part B04.4 of the second flip plate 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. When the second flip plate B04 rotates clockwise to switch the flip position, the first flip plate B02 of the energy storage mechanism rotates clockwise and compresses the flip spring to store energy in the energy storage mechanism. The energy storage mechanism begins to release energy after crossing the dead point, so that 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 transfer switch completes the disconnection of the common side power supply.

[0138] exist Fig.31In the process, the backup side power supply of the transfer switch is also disconnected, that is, the transfer switch is in the double disconnected state, and the rotation position of the second gear CL2 in the double disconnected state is between the two rotation positions when the common side power supply is closed and the backup side power supply is closed. The second flip linkage part B04.5 is separated from the seventh lever linkage part B03.5, and the seventh lever limit part B03.2 is reset and rotated to abut the arc surface of the fan-shaped protrusion of the second gear CL2. Fig.31 When the double-split state is switched back to the standby side power supply closing state, the flip lever GG01 drives the second gear CL2 to rotate clockwise through the first gear CL1, and the seventh lever limit part B03.2 slides on the arc surface of the fan-shaped protrusion relative to the second gear CL2 until the seventh lever limit part B03.2 is completely reset and abuts against the second stop part CL2.5 when passing the second stop part CL2.5.

[0139] like Fig.32 As shown, when the transfer switch is in the standby side power supply closed state, from the front view of the second side plate YCB, flip lever GG01 ( Fig.32 (not shown) is at its maximum counterclockwise rotation angle, the central axis ZXZ, the first flip plate B02 ( Fig.32 The second flip plate B04 is located at the maximum angle position of its respective clockwise rotation. The first flip plate B02 is located at the second flip position, and the flip spring has a tendency to make the flip lever GG01 drive the second gear CL2 to rotate in the direction of closing the backup side power supply. Fig.26 As shown in (b), the second flip limiter B04.3 of the second flip plate B04 contacts the second flip plate limiter axis Z10 and is limited by the second flip plate limiter axis Z10, that is, the second flip plate B04 is located at the fourth flip position. Fig.32As shown, the second flip linkage part B04.5 of the second flip plate B04 avoids the seventh lever B03, and the second flip linkage part B04.5 does not contact the seventh lever linkage part B03.5 of the seventh lever B03. The first flip linkage part B04.4 of the second flip plate 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 to separate the sixth lever limit part GG08.2 from the first stop part CL2.4 of the second gear CL2. The flip lever GG01 links the first gear CL1 through the flip lever protrusion Z12, so that the first gear CL1 is located at its maximum angle position of counterclockwise rotation, and the first gear CL1 pulls the second gear CL2 through the first tooth CL1.3, so that the rotation position of the second gear CL2 when the backup side power supply is closed is located at its maximum angle position of clockwise rotation. At this time, the seventh lever limiter B03.2 of the seventh lever B03 abuts against the second stopper 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 has a tendency to be repelled due to the electromagnetic repulsion when closing, the seventh lever limiter B03.2 can also prevent the second gear CL2 from rotating counterclockwise in the direction of closing the common side power supply, thereby ensuring the stability of closing the standby side power supply.

[0140] like Fig.35 As shown, in Fig.32 The central axis ZXZ is rotated counterclockwise on the basis of the first and second flip plates B04, and the second flip plate B04 also rotates counterclockwise with the central axis ZXZ. During the rotation process, the second flip linkage part B04.5 of the second flip plate 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 rotates. The central axis ZXZ continues to be rotated 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. When the second flip plate B04 rotates counterclockwise to switch the flip position, the first flip plate B02 of the energy storage mechanism rotates counterclockwise and compresses the flip spring to store energy in the energy storage mechanism. The energy storage mechanism begins to release energy after passing the dead point, so that 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 transfer switch completes the disconnection of the standby side power supply.

[0141] exist Fig.35In the process, the power supply of the common side of the transfer switch is also disconnected, that is, the transfer switch is in the double disconnected state, and the rotation position of the second gear CL2 in the double disconnected state is between the two rotation positions when the common side power supply is closed and the standby side power supply is closed. The first flip linkage part B04.4 is separated from the sixth lever linkage part GG08.5, and the sixth lever limit part GG08.2 is reset and rotated to abut the arc surface of the fan-shaped protrusion of the second gear CL2. Fig.35 When the double-split state is switched back to the standby side power supply closing state, the flip lever GG01 drives the second gear CL2 to rotate counterclockwise through the first gear CL1, and the sixth lever limit part GG08.2 slides on the arc surface of the fan-shaped protrusion relative to the second gear CL2 until it passes the first stop part CL2.4, and the sixth lever limit part GG08.2 is completely reset and abuts against the first stop part CL2.4.

[0142] 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 closing position locking device, characterized in that: Used in transfer switches, including: Second side board (YCB); a second gear (CL2), arranged on the second side plate (YCB), connected to the moving contact of the conversion switch, and capable of reciprocating rotation to switch the conversion switch at least between a first closing state and a second closing state; a sixth lever (GG08) rotatably disposed on the second side plate (YCB); the sixth lever (GG08) being configured to abut against the second gear (CL2) in the first closing state to limit the second gear (CL2) from rotating in the direction of the second closing state; a seventh lever (B03) rotatably disposed on the second side plate (YCB); the seventh lever (B03) being configured to abut against the second gear (CL2) in the second closing state to limit the second gear (CL2) from rotating in the direction of the first closing state; A second flip plate (B04) is movably arranged on the second side plate (YCB); the second flip plate (B04) is configured to abut against the seventh lever (B03) in the first closing state so that the seventh lever (B03) is separated from the second gear (CL2), and to abut against the sixth lever (GG08) in the second closing state so that the sixth lever (GG08) is separated from the second gear (CL2).

2. The closing position locking device according to claim 1, characterized in that: The closing position locking device also includes: An energy storage mechanism is connected to the second gear (CL2) and the second flip plate (B04), and when the second flip plate (B04) switches positions, it first stores energy and then releases the energy to drive the second gear (CL2) to rotate.

3. The closing position locking device according to claim 2, characterized in that: The closing position locking device also includes: A first gear (CL1) is connected to the energy storage mechanism and meshes with the second gear (CL2); a pitch circle radius of the first gear (CL1) is greater than a pitch circle radius of the second gear (CL2); The energy storage mechanism drives the first gear (CL1) to rotate so as to drive the second gear (CL2) to rotate.

4. The closing position locking device according to claim 3, characterized in that: The closing position locking device also includes: The central axis (ZXZ) passes through the second side plate (YCB); the second flip plate (B04) is synchronously rotatably sleeved on the central axis (ZXZ); The energy storage mechanism comprises: A flip lever (GG01) is rotatably sleeved on the central axis (ZXZ) and fixedly connected to the first gear (CL1); A first flip plate (B02) is synchronously rotatably sleeved on the central axis (ZXZ) and has a first flip position and a second flip position; A flip spring connecting the first flip plate (B02) and the flip lever (GG01); When the first flip plate (B02) is located at the first flip position, the flip spring has a tendency to cause the flip lever (GG01) to drive the second gear (CL2) to rotate in the direction of the first closing state; When the first flip plate (B02) is located at the second flip position, the flip spring has a tendency to cause the flip lever (GG01) to drive the second gear (CL2) to rotate in the direction of the second closing state.

5. The closing position locking device according to claim 4, characterized in that: The closing position locking device also includes: The driving mechanism is connected to the central axis (ZXZ) and is configured to drive the first flip plate (B02) to reciprocate between the first flip position and the second flip position.

6. The closing position locking device according to claim 1, characterized in that: The second gear (CL2) also includes: Second tooth (CL2.2); A fan-shaped protrusion is coaxial with the second tooth (CL2.2) and is axially offset; two circumferential ends of the fan-shaped protrusion form a first stopper (CL2.4) and a second stopper (CL2.5); The sixth lever (GG08) comprises a sixth lever limiting portion (GG08.2); the sixth lever limiting portion (GG08.2) is configured to abut against the first stop portion (CL2.4) in the first closing state to limit the second gear (CL2) from rotating in the direction of the second closing state; The seventh lever (B03) includes a seventh lever limiting portion (B03.2); the seventh lever limiting portion (B03.2) is configured to abut against the second stop portion (CL2.5) in the second closing state to limit the second gear (CL2) from rotating in the direction of the first closing state.

7. The closing position locking device according to claim 6, characterized in that: The sixth lever (GG08) and the seventh lever (B03) are arranged on the second side plate (YCB) in a resetting and rotatable manner; The conversion switch also has a double open state; the rotation position of the second gear (CL2) in the double open state is between its two rotation positions in the first closed state and the second closed state; When switching from the first closing state to the double opening state, the second flip plate (B04) abuts against the sixth lever (GG08) to separate the sixth lever limiting portion (GG08.2) from the first stop portion (CL2.4), and the seventh lever limiting portion (B03.2) is reset and rotated to abut against the arc surface of the fan-shaped protrusion; When switching from the second closing state to the double opening state, the second flip plate (B04) abuts against the seventh lever (B03) to separate the seventh lever limiting portion (B03.2) from the second stop portion (CL2.5), and the sixth lever limiting portion (GG08.2) is reset and rotated to abut against the arc surface of the fan-shaped protrusion.

8. The closing position locking device according to claim 1, characterized in that: The second flip plate (B04) comprises a first flip linkage part (B04.4) and a second flip linkage part (B04.5); In the first closing state, the first flip linkage part (B04.4) avoids the sixth lever (GG08), and the second flip linkage part (B04.5) abuts against and rotates the seventh lever (B03); In the second closing state, the second flip linkage part (B04.5) avoids the seventh lever (B03), and the first flip linkage part (B04.4) abuts against and rotates the sixth lever (GG08).

9. The closing position locking device according to claim 1, characterized in that: The second gear (CL2) further includes a second gear linkage portion (CL2.3); the second gear linkage portion (CL2.3) is used to link the moving contact.

10. The closing position locking device according to claim 1, characterized in that: The second side plate (YCB) is provided with a sixth lever limiting shaft (Z01a′) and a seventh lever limiting shaft (Z01b′); The sixth lever (GG08) comprises a fifth notch (GG08.3); the sixth lever limiting shaft (Z01a′) cooperates with the fifth notch (GG08.3) to limit the rotation range of the sixth lever (GG08); The seventh lever (B03) comprises a sixth slot (B03.3), and the seventh lever limiting shaft (Z01b′) cooperates with the sixth slot (B03.3) to limit the rotation range of the seventh lever (B03).

Images