Tripping device

Abstract

The invention provides a tripping device. The tripping device comprises an energy storage mechanism, a driving mechanism and a locking mechanism, the driving mechanism comprises a driving disc; and a drive attachment mounted to the drive disk for rotation about a drive attachment axis of rotation between a first abutment position and a second abutment position. When the driving disc rotates from the reset opening position to the closing driving position in the first rotating direction, the driving disc pushes the moving support of the energy storage mechanism to move from the energy releasing position to the energy storage position through the driving accessory. When the driving disc moves from the reset opening position to the closing driving position and after the moving support moves from the energy release position to the energy storage position, the driving accessory crosses the driving guide component. And under the condition that the movable support is locked at the energy storage position by the lock catch mechanism, the driving disc can move from the closing driving position to the reset opening position in the second rotating direction without driving the movable support to move, and the second rotating direction is opposite to the first rotating direction.

Description

Technical Field

[0001] The present disclosure relates to a tripping device. Background Art

[0002] In recent years, new energy power generation has been vigorously developed. However, the disadvantages of new energy power generation include instability, time mismatch, and energy waste. To ensure the stability of new energy power generation and not waste the hard-won electricity, energy storage, as an important supporting technology, is more and more widely used. Among them, electrochemical energy storage mainly based on batteries has broad development prospects.

[0003] In current energy storage power stations, batteries are connected in series to form battery packs, and then the battery packs are connected in series to form battery clusters. For each battery cluster, a high-voltage box (for example, a fusion switch) is used to control the charging and discharging of the batteries. The high-voltage box can include a manual disconnect switch, two main circuit contactors, and a pre-charge circuit contactor in series with a resistor. The positive and negative poles are short-circuit protected by fuses.

[0004] When the customer's application scenario requires energy storage of the battery pack, the operation steps are as follows: 1. Close the pre-charge circuit; 2. Close the main circuit; 3. Open the pre-charge circuit. After that, the battery pack is in the charging state. If charging needs to be stopped, step 4 is required: Open the main circuit. When the control circuit is abnormal (power failure or voltage drop) or the charging circuit is abnormal (such as overcurrent less than the fuse protection), the main circuit needs to be quickly disconnected to disconnect the charging process of the battery. Summary of the Invention

[0005] At least some embodiments of the present disclosure provide a tripping device that can quickly trip when a switching device fails. The tripping device has a simple structure and reliable operation.

[0006] At least some embodiments of the present disclosure provide a tripping device, including: a housing, an energy storage mechanism, a locking mechanism, and a driving mechanism. The energy storage mechanism includes: a helical compression spring for storing energy for the tripping operation; and a moving bracket configured to move relative to the housing in a translational direction between an energy storage position and an energy release position to compress and release the helical compression spring respectively. The locking mechanism is configured to lock the moving bracket in the energy storage position after the moving bracket moves to the energy storage position and can release the locking of the moving bracket. The driving mechanism includes: a driving disk configured to rotate relative to the housing about a driving disk rotation axis between a closing driving position and a reset opening position; and a first closing-opening lever connected to the driving disk. When the driving disk rotates from the reset opening position to the closing driving position in a second rotation direction, the driving disk drives the moving bracket to move from the energy release position to the energy storage position. When the locking mechanism releases the locking of the moving bracket and the driving disk is in the closing driving position, the moving bracket moves from the energy storage position to the energy release position and drives the driving disk to rotate in a first rotation direction via a first opening lever. Brief Description of the Drawings

[0007] Figure 1A A schematic diagram showing a trip device according to an embodiment of the present disclosure, wherein Figure 1A A cross-sectional view showing a cross-section of the trip device, Figure 1B A cross-sectional view showing another cross-section of the trip device, and Figure 1C A cross-sectional view showing a cross-section of the trip device;

[0008] Figures 2 - 5 A schematic diagram showing the energy storage closing process of the trip device according to an embodiment of the present disclosure;

[0009] Figures 6 - 7 A schematic diagram showing the energy storage opening process of the trip device according to an embodiment of the present disclosure;

[0010] Figures 8 - 10 A schematic diagram showing the energy release opening process of the trip device according to an embodiment of the present disclosure, wherein Figures 2 - 10 The locking mechanism is not shown;

[0011] Figure 11 and Figure 12 A schematic diagram showing the energy storage mechanism of the trip device according to an embodiment of the present disclosure, Figure 13 A schematic diagram of the moving bracket of the energy storage mechanism of the trip device according to an embodiment of the present disclosure;

[0012] Figure 14 A schematic diagram showing the drive disk and drive accessories of the trip device according to an embodiment of the present disclosure;

[0013] Figure 15 Schematically shows an embodiment of the drive mechanism according to the present invention;

[0014] Figure 16 Schematically shows Figure 15 A view of the drive mechanism shown from another angle;

[0015] Figure 17 Schematically shows Figure 15 The drive mechanism shown, however, the drive disk is removed in this view;

[0016] Figure 18 Schematically shows the drive mechanism when the fusion switch device is in the open position;

[0017] Figure 19 Schematically shows Figure 18 A subsequent state of the drive mechanism shown, wherein the pre-charge bias device is at the pre-charge closing dead point;

[0018] Figure 20Schematically shows the drive mechanism when the fusion switch device is in the pre-charging closed position;

[0019] Figure 21 Schematically shows Figure 20 The subsequent state of the shown drive mechanism, wherein the main charging bias device is at the main charging closed dead point;

[0020] Figure 22 Schematically shows the drive mechanism when the fusion switch device is in the closed position;

[0021] Figure 23 Schematically shows Figure 22 The subsequent state of the shown drive mechanism, wherein the main charging bias device is at the main charging full dead point;

[0022] Figure 24 Schematically shows the drive mechanism when the fusion switch device is in the pre-charging full position;

[0023] Figure 25 Schematically shows Figure 24 The subsequent state of the shown drive mechanism, wherein the main charging bias device is at the main charging full dead point;

[0024] Figure 26 Schematically shows the drive mechanism when the fusion switch device is in the open position;

[0025] Figures 27A - 33B Shows a schematic diagram of a tripping mechanism according to an embodiment of the present disclosure, wherein Figure 27A 、 Figure 28A 、 Figure 29A 、 Figure 30A 、 Figure 31A 、 Figure 32A 、 Figure 33A Respectively show cross-sectional views in one cross-section, Figure 27B 、 Figure 28B 、 Figure 29B 、 Figure 30B 、 Figure 31B 、 Figure 32B 、 Figure 33B Respectively show cross-sectional views in another cross-section, wherein, Figure 27A and Figure 27B Show the tripping mechanism in the initial position, Figure 31A and Figure 31B Show the tripping mechanism in the latched position, Figure 29A and Figure 29B Show the tripping mechanism in the first intermediate position, Figure 32A and Figure 32B Show the tripping mechanism in the second intermediate position;

[0026] Figure 34A and Figure 34BShows a three-dimensional schematic diagram of a energy storage lever according to an embodiment of the present disclosure;

[0027] Figure 35A and Figure 35B Shows a three-dimensional schematic diagram of a latch lever according to an embodiment of the present disclosure;

[0028] Figure 36A and Figure 36B Shows a three-dimensional schematic diagram of a toggle assembly according to an embodiment of the present disclosure;

[0029] Figure 37 Shows a three-dimensional schematic diagram of a tripping member and a cooperating toggle according to an embodiment of the present disclosure. Detailed Description of the Embodiment

[0030] Next, a tripping device according to an embodiment of the present disclosure will be described in detail with reference to the accompanying drawings.

[0031] The tripping device according to an embodiment of the present disclosure includes an energy storage mechanism that employs a helical compression spring (direct compression spring) that moves only in the translational direction. Therefore, it occupies a small volume, is convenient to arrange, and is easy to cooperate with various forms of drive mechanisms for installation.

[0032] Figures 1A - 1C Shows a schematic diagram of a tripping device according to an embodiment of the present disclosure, where Figure 1A Shows a cross-sectional view of a section of the tripping device, Figure 1B Shows a cross-sectional view of another section of the tripping device, and Figure 1C Shows a cross-sectional view of a section of the tripping device.

[0033] As Figures 1A - 1C shown, the tripping device includes a housing 1, a latching mechanism 4, an energy storage mechanism 5, and a drive mechanism 6. The latching mechanism 4, the energy storage mechanism 5, and the drive mechanism 6 are installed in the housing 1. The tripping device is included, for example, in a fusion switch, but the present disclosure is not limited thereto.

[0034] The tripping device can achieve an energy storage closing process. In this process, the drive mechanism 6 drives the fusion switch to switch from a tripped state where both the main charging circuit and the pre-charging circuit are disconnected to a closed state where both the main charging circuit and the pre-charging circuit are closed, and drives the energy storage mechanism 5 to switch from an energy release state to an energy storage state to store energy. The latching mechanism 4 locks the energy storage mechanism 5 in the energy storage state.

[0035] The tripping device can also implement the energy release and opening process. When a fault occurs, the locking mechanism 4 releases the locking of the energy storage mechanism 5. For example, when the control loop is abnormal (power failure or voltage drop) or the charging loop is abnormal (such as overcurrent less than the fuse protection). The energy stored in the energy storage mechanism 5 is used to drive the fusion switch to switch from the closed state to the open state via the driving mechanism 6. Therefore, when a fault occurs, the main circuit can be quickly disconnected, and the charging process of the battery can be interrupted.

[0036] In addition, the tripping device can also implement the energy storage and opening process. During this process, the locking mechanism 4 maintains the locking of the energy storage mechanism 5, so that the energy storage mechanism 5 remains in the energy storage state. And the driving mechanism 6 drives the fusion switch to switch from the open state to the closed state. During this process, the energy storage mechanism 5 does not affect the normal closing and opening operations of the driving mechanism 6. Therefore, the energy storage mechanism 5 only needs to store energy once. As long as no fault occurs, the energy storage mechanism 5 can remain in the energy storage state. Only when a fault occurs, the energy storage mechanism 5 switches to the energy release state.

[0037] Figure 11 and Figure 12 shows a schematic diagram of the energy storage mechanism of the tripping device according to an embodiment of the present disclosure, Figure 13 shows a schematic diagram of the moving bracket of the energy storage mechanism of the tripping device according to an embodiment of the present disclosure.

[0038] As Figures 11 - 12 shown, the energy storage mechanism 5 includes an energy storage mechanism mounting bracket 53, a helical compression spring 52, and a moving bracket 51. The energy storage mechanism mounting bracket 53 is fixed to the housing. As Figure 13As shown, the moving bracket 51 includes a first bracket side portion 516, a second bracket side portion 512, and a moving bracket bottom portion 513 connecting the first bracket side portion 516 and the second bracket side portion 512. In addition, the moving bracket 51 further includes a spring guide post 514 extending from the moving bracket bottom portion 513 towards the top. The helical compression spring 51 is mounted around the spring guide post 514 to the moving bracket 51. The upper end of the helical compression spring 52 is connected to the energy storage mechanism mounting bracket 53, and the lower end of the helical compression spring 52 is connected to the moving bracket bottom portion 513 of the moving bracket 51. Additionally, the moving bracket 51 further includes at least one guiding protrusion 515 for cooperating with the linear guiding groove 531 in the energy storage mechanism mounting bracket 53 to guide the moving bracket 51 to move in the translational direction (the up-and-down direction in the figure). In this example, there are three guiding protrusions 515, one of which is fixed to the first bracket side portion 516 near the latching mechanism 4, and two guiding protrusions 515 are fixed to the second bracket side portion 512. When the integrated switchgear is in the closing state, the driving mechanism 6 drives the moving bracket 51 to translate upward to compress the helical compression spring 52, thereby causing energy to be stored in the helical compression spring 52. Thus, the moving bracket 51 is in the energy storage position, the energy storage mechanism 5 is in the energy storage state, and then the latching mechanism 4 locks the energy storage mechanism 5 in the energy storage state. When a fault occurs, the latching mechanism 4 is triggered to release the locking of the energy storage mechanism 5. At this time, the energy storage mechanism 5 moves from the energy storage position to the energy release position, and drives the driving mechanism 6 to drive the integrated switchgear to switch to the opening state. When the energy storage mechanism 5 moves from the energy storage position to the energy release position, the moving bracket 51 translates downward to release the helical compression spring 52, thereby causing the energy stored in the helical compression spring 52 to be used to drive the integrated switchgear to open. One guiding protrusion 515 fixed to the first bracket side portion 516 near the latching mechanism 4 can be used as a latching cooperation portion 511 for cooperating with the latching mechanism 4. The latching mechanism 4 locks and releases the energy storage mechanism 5 by cooperating with the latching cooperation portion 511.

[0039] As Figures 11 - 12 shown, the driving and guiding member 54 is mounted to the moving bracket 51 to be able to rotate relative to the moving bracket 51 about the driving and guiding axis. The driving and guiding biasing member 55 is used to bias the driving and guiding member 54 towards the counterclockwise direction. The driving and guiding member 54 can be a torsion spring, one end of which abuts against the moving bracket 51, and the other end abuts against the driving and guiding member 54. The moving bracket 51 has an arc-shaped guiding opening 517, and the driving limit portion of the driving and guiding member 54 is disposed in the arc-shaped guiding opening 517 to be blocked by the moving bracket 51. The driving and guiding member 54 has a curved guiding surface 542 on one side in the counterclockwise direction (the second rotation direction) and a flat driving surface 541 on one side in the clockwise direction (the first rotation direction), and the curved guiding surface 542 extends radially outwardly in the clockwise direction relative to the driving and guiding axis.

[0040] Figures 2 - 5 Shows a schematic diagram of the energy storage closing process of a tripping device according to an embodiment of the present disclosure, where the latching mechanism 4 is not shown, and where Figure 2 corresponds to Figure 1C

[0041] As Figures 2 - 5 shown, the driving mechanism includes a first closing and opening mechanism 2 and a second closing and opening mechanism 3. The first closing and opening mechanism 2 includes a driving disc 22, a first closing and opening lever 28, and a pre-charging main disc 24 fixedly connected to the first closing and opening lever 28 (see Figures 15 - 26 ). The second closing and opening mechanism 3 includes a second driving disc 33 power-connected to the driving disc 22 (see Figures 15 - 26 ), a second closing and opening lever 38, and a main charging main disc 34 fixedly connected to the second closing and opening lever 38. The driving disc 22 is configured to rotate between a closing driving position and a reset opening position relative to the housing 1 about a driving disc rotation axis parallel to the driving accessory rotation axis. The first closing and opening lever 28 and the pre-charging main disc 24 are connected to the driving disc 22 and are configured to rotate about the driving disc rotation axis. The second driving disc 33, the second closing and opening lever 38, and the main charging main disc 34 are configured to rotate about a second driving disc rotation axis parallel to the driving disc rotation axis.

[0042] The first closing and opening mechanism 2 further includes a driving accessory 29, which is mounted on the driving disc 22 to rotate between a first abutting position and a second abutting position about a driving accessory rotation axis parallel to the driving disc guiding axis. The driving accessory 29 moves from the first abutting position to the second abutting position by rotating in the clockwise direction.

[0043] The helical compression spring 52 extends along an extension axis, which is disposed between the first closing and opening mechanism 2 and the second closing and opening mechanism 3, such that the energy storage mechanism 5 cooperates with the first closing and opening mechanism 2 in the driving mechanism 6 via the driving guiding member 54, and cooperates with both the first closing and opening lever 28 of the first closing and opening mechanism 2 and the second closing and opening lever 38 of the second closing and opening mechanism 3 in the driving mechanism via the moving bracket bottom 513.

[0044] The energy storage mechanism according to the embodiment of the present disclosure employs a helical compression spring (direct pressure spring) that moves only in the translational direction. Therefore, it occupies a small volume and is convenient to arrange. This energy storage mechanism is particularly suitable for integrated switchgear. For example, it can be installed between the first closing and opening mechanism 2 and the second closing and opening mechanism 3 of the integrated switchgear. It can be applied to the integrated switch without changing the basic principles and structures of the existing first closing and opening mechanism 2 and second closing and opening mechanism 3, and does not significantly increase the volume of the driving mechanism 6.

[0045] ​It should be noted that the drive mechanism is not limited to the above drive mechanism having the first closing and opening mechanism 2 and the second closing and opening mechanism 3. For example, the drive mechanism may include only one closing and opening mechanism. For example, the closing and opening mechanism may include only the drive disk 22 and the first closing and opening lever 28, without including the pre-charged main disk 24, and the first closing and opening lever 28 may be fixed to the drive disk 22.

[0046] Figure 14 A schematic diagram of the drive disk 22 and the drive attachment 29 of the trip device according to an embodiment of the present disclosure is shown.

[0047] As Figure 14 shown, the drive attachment 29 is rotatably mounted to the drive disk 22, and a drive attachment biasing member 291 is mounted between the drive attachment 29 and the drive disk 22 to bias the drive attachment 29 in the clockwise direction. The drive attachment biasing member 291 is, for example, a torsion spring, one end of which abuts against the drive attachment 29 and the other end abuts against the drive disk 22. In addition, the drive attachment 29 further includes a drive bushing 292 for cooperating with the drive guide member 54.

[0048] The energy storage closing process of the trip device is described below. During the energy storage closing process, the drive disk 22 rotates in the clockwise direction from the reset opening position to the closing drive position to drive the first closing and opening mechanism 2 and the second closing and opening mechanism 3 to switch from the opening state to the closing state, respectively.

[0049] As Figure 2 shown, the drive disk 22 is in the reset opening position, and both the first closing and opening mechanism 2 and the second closing and opening mechanism 3 are in the opening state. At this time, the drive attachment 29 is biased by the drive attachment biasing member 291 to the second abutting position in the clockwise direction, and the drive guide member 54 is biased by the drive guide biasing member 55 to the third abutting position in the counterclockwise direction.

[0050] As Figures 2 - 12 shown, the drive disk 22 rotates in the clockwise direction and pushes the moving bracket 51 from the energy release position to the energy storage position via the drive attachment 29 and the drive guide member 54. During this process, the drive bushing 292 of the drive attachment 29 abuts against the flat drive surface 541 ( Figure 3 ) of the drive guide member 54, crosses over the drive guide member 54 from one side (i.e., the clockwise side) of the flat drive surface 541 of the drive guide member 54 to the other side (i.e., the counterclockwise side) of the curved guide surface 542 of the drive guide member 54 ( Figure 4 ), and after the drive attachment 29 crosses over the drive guide member 54, the drive disk 22 drives the drive attachment 29 to continue moving in the clockwise direction to the closing drive position ( Figure 5 ).

[0051] AsFigure 3 and Figure 4 As shown, when the drive shaft sleeve 292 of the drive accessory 29 abuts against the flat drive surface 541 of the drive guide member 54, the drive accessory 29 rotates counterclockwise to the first abutting position against the biasing force of the drive accessory biasing member 291. The drive accessory 29 includes a first drive accessory arm 293 and a second drive accessory arm 294 extending from the drive accessory rotation axis (see Figure 4 ). The drive shaft sleeve 292 is provided at the end of the first drive accessory arm 293. When the drive accessory 29 is in the first abutting position, the second drive accessory arm 294 abuts against the drive disk 22 to be blocked by the drive disk 22; when the drive accessory 29 is in the second abutting position, the first drive accessory arm 293 abuts against the drive disk 22 to be blocked by the drive disk 22. In the first abutting position, the distance between the drive shaft sleeve 292 and the drive disk rotation axis is a first distance, and in the second abutting position, the distance between the drive shaft sleeve 292 and the drive disk rotation axis is a second distance less than the first distance. As Figure 5 shown, after the drive accessory 29 passes over the drive guide member 54, the drive accessory 29 returns to the second abutting position.

[0052] As Figure 4 shown, when the drive accessory 29 passes over the drive guide member 54, the moving bracket 51 (i.e., the latch engaging portion) translates upward to the extreme position. Thus, the moving bracket 51 moves to the energy storage position. After the moving bracket 51 moves to the energy storage position, the latch mechanism locks the moving bracket 51 in the energy storage position.

[0053] As Figure 5 shown, after the drive accessory 29 passes over the drive guide member 54, the drive disk 22 continues to rotate in the clockwise direction to drive the first closing and opening mechanism 2 and the second closing and opening mechanism 3 to be respectively switched to the closing state.

[0054] When the moving bracket 51 is in the energy storage position and the first closing mechanism and the second closing mechanism are in the closing state, the first closing and opening lever 28 and the second closing and opening lever 38 are positioned to be spaced apart from the bottom 513 of the moving bracket.

[0055] In the tripping device according to an embodiment of the present disclosure, as long as the drive mechanism 6 drives the first closing and opening mechanism 2 and / or the second closing and opening mechanism 3 to be switched from the opening state to the closing state, the energy storage mechanism will be switched or maintained in the energy storage state. As long as the energy storage mechanism is in the energy release state, the first closing and opening mechanism 2 and the second closing and opening mechanism 3 must be in the opening state. Therefore, the reliability of the tripping function is ensured.

[0056] Figures 6 - 7 Shows a schematic diagram of the energy storage and opening process of a tripping device according to an embodiment of the present disclosure, in which the latch mechanism is not shown.

[0057] The energy storage and opening process of the trip device is introduced below. During the energy storage and opening process, the locking mechanism 4 maintains the locking of the energy storage mechanism 5, so that the energy storage mechanism 5 remains in the energy storage state, and the driving mechanism 6 drives the fusion switch to switch from the opening state to the closing state.

[0058] As Figures 6 - 7 shown, the driving disk 22 rotates in the counterclockwise direction. The driving accessory 29 is biased by the driving accessory biasing member 291 to the second abutting position. At this second abutting position, the distance between the driving shaft sleeve 292 and the rotation axis of the driving disk is a second distance less than the first distance at the first abutting position. The second distance can be configured such that when the moving bracket 51 is locked in the energy storage position by the locking mechanism and the driving disk 22 moves back from the closing driving position to the reset opening position in the counterclockwise direction, the driving shaft sleeve 292 of the driving accessory 29 does not contact the driving guide member 54. Therefore, when the energy storage mechanism is in the energy storage state, the driving disk 22 can be freely rotated without being affected by the energy storage mechanism, so that the first closing and opening mechanism 2 and / or the second closing and opening mechanism 3 are switched between the closing state and the opening state.

[0059] The energy storage and opening process of the trip device is introduced below. During the energy storage and opening process, the locking mechanism 4 releases the locking of the energy storage mechanism 5, and the energy stored in the energy storage mechanism 5 drives the fusion switch to switch from the closing state to the opening state via the driving mechanism 6. For example, the locking mechanism 4 can be paired with an under-voltage release, so as to release the locking of the energy storage mechanism 5 when the voltage of the control circuit drops or decreases. For example, the locking mechanism 4 can be paired with a shunt release, so as to remotely control the trip device to quickly trip and open. For example, the locking mechanism 4 can be paired with a short-circuit trip unit, so as to quickly trip when a short-circuit current in the main circuit is detected.

[0060] Figures 8 - 10 A schematic diagram of the energy release and opening process of the trip device according to an embodiment of the present disclosure is shown, in which the locking mechanism is not shown.

[0061] As Figures 8 - 10 shown, since the locking mechanism 4 releases the locking of the energy storage mechanism 5, the moving bracket 51 moves downward from the energy storage position to the energy release position. The bottom 513 of the moving bracket 51 of the moving bracket pushes the first closing and opening lever 28 and the second closing and opening lever 38, and drives the driving disk 22 (and the pre-charged main disk 24) and the second driving disk 33 (and the main-charged main disk 34) to rotate in the counterclockwise direction and the clockwise direction respectively via the first closing and opening lever 28 and the second closing and opening lever 38, so as to switch from the closing state to the opening state. Therefore, the driving disk 22 rotates from the closing driving position in the counterclockwise direction to the tripping and opening position.

[0062] As Figures 8 - 10As shown, the moving bracket 51 drives the drive guiding member 54 to move downward, and the drive disk 22 drives the drive accessory 29 to rotate in the counterclockwise direction. As Figure 10 shown, the drive disk 22 is in the tripping and opening position. In the tripping and opening position, the drive accessory 29 is located at the second abutting position and on one side (i.e., the counterclockwise side) of the curved guiding surface 542 of the drive guiding member 54. The drive accessory 29 abuts against the drive guiding member 54 to rotate the drive guiding member 54 in the clockwise direction from the third abutting position against the biasing force of the drive guiding biasing member 55.

[0063] After troubleshooting, the drive disk 22 is driven to move from the tripping and opening position to the reset and opening position (as Figure 2 shown). When the drive disk 22 moves from the tripping and opening position to the reset and opening position, the drive accessory 29 is located at the second abutting position and pushes the drive guiding member 54 to continue rotating in the clockwise direction. Therefore, the drive accessory 29 moves from one side of the drive guiding member 54 on the curved guiding surface 542 across the drive guiding member 54 to the other side of the drive guiding member 54 on the flat drive surface 541. The curved guiding surface 542 is designed such that the drive bushing 292 of the drive accessory 29 smoothly moves along the curved guiding surface 542 to move from one side of the drive guiding member 54 on the curved guiding surface 542 across the drive guiding member 54 to the other side of the drive guiding member 54 on the flat drive surface 541.

[0064] By designing the biasing force of the biasing member, etc., the drive disk 22 can be held in the tripping and opening position when the drive disk 22 is not subjected to a driving torque. When in the tripping and opening position, the drive mechanism cannot drive the first switching mechanism 2 and / or the second switching mechanism 3 to switch to the closing state anymore. Therefore, it is possible to prevent the first switching mechanism 2 and / or the second switching mechanism 3 from switching to the closing state when the fault has not been eliminated.

[0065] The drive mechanism 6 will be described below. It should be noted that the present disclosure does not limit the configuration of the drive mechanism 6. The configuration of the drive mechanism 6 can be modified according to application requirements.

[0066] The driving mechanism 6 is suitable for a fusion switch, and the driving mechanism includes a first closing and opening mechanism 2 for a pre-charging circuit and a second closing and opening mechanism 3 for a main charging circuit. The first closing and opening mechanism 2 includes a driving disk and a pre-charging main disk. The pre-charging main disk drives the pre-charging moving contact to move relative to the pre-charging static contact, so that it can switch between the pre-charging closing position and the pre-full position. The second closing and opening mechanism 3 includes a second driving disk and a main charging main disk that are power-connected to the driving disk 22. The main charging main disk drives the main charging moving contact to move relative to the main charging static contact, so that it can switch between the main charging closing position and the main full position. A pre-charging idle stroke is set between the driving disk and the pre-charging main disk, and a main charging idle stroke is set between the second driving disk and the main charging main disk, wherein the pre-charging idle stroke cooperates with the main charging idle stroke, so that the driving disk completes the active idle stroke only after completing the pre-charging idle stroke, so that the driving torque is first transmitted to the pre-charging main disk, and then to the main charging main disk.

[0067] Figures 15 to 26 The driving mechanism according to one embodiment of the present disclosure is shown. For the sake of simplicity, the pre-charge moving contact, the pre-charge static contact, the main charge moving contact and the main charge static contact are not specifically indicated in the figure.

[0068] like Figure 15 As shown, the drive mechanism 1 includes a first closing and opening mechanism 2 for the pre-charging circuit and a second closing and opening mechanism 3 for the main charging circuit. The first closing and opening mechanism 2 is connected to the pre-charging moving contact not shown in the figure, drives the pre-charging moving contact to rotate, and makes it move relative to the pre-charging static contact, thereby realizing the pre-charging position and the pre-sufficient position of the pre-charging circuit. In the pre-charging position, the pre-charging moving contact is closed with the pre-charging static contact, and in the pre-sufficient position, the pre-charging moving contact is disconnected from the pre-charging static contact. The second closing and opening mechanism 3 is connected to the main charging moving contact not shown in the figure, drives the main charging moving contact to rotate, and makes it move relative to the main charging static contact, thereby realizing the main charging position and the main sufficient position of the main charging circuit. In the main charging position, the main charging moving contact is closed with the main charging static contact, and in the main sufficient position, the main charging moving contact is disconnected from the main charging static contact.

[0069] Figures 15 to 17 The structural details of the drive mechanism 1 according to the invention are shown.

[0070] The first closing and opening mechanism 2 includes a pre-filling support shaft 21, a driving disk 22 rotatably inserted on the pre-filling support shaft 21, a main charging driving gear 23 and a pre-filling main disk 24 that are connected to the driving disk 22 on both sides of the driving disk 22 along the axial direction of the pre-filling support shaft 21, and a pre-filling main shaft connecting disk 25 that is connected to the pre-filling main disk 24 on the side of the pre-filling main disk 24 away from the driving disk 22, and the pre-filling main shaft connecting disk 25 is connected to the pre-filling main disk 24 through a spline, and is connected to the pre-filling moving contact not shown in the figure in a torsion-resistant and fixed manner. In addition, the first closing and opening mechanism 2 also includes a pre-filling biasing device 26 that is connected to the pre-filling main disk 24.

[0071] The second closing and opening mechanism 3 includes a main charging support shaft 31, a main charging drive disk 33 (i.e., a second drive disk) rotatably arranged on the main charging support shaft 31, a main charging main disk 34 matched with the main charging drive disk 33, and a main charging main shaft connecting disk 35 matched with the main charging main disk 34 on the side of the main charging main disk 34 away from the main charging drive disk 33, the main charging main shaft connecting disk 35 is connected to the main charging main disk 34 through a spline, and is connected to the main charging moving contact not shown in the figure in a torsion-resistant fixed manner. In addition, the second closing and opening mechanism 3 also includes a main charging biasing device 36 matched with the main charging main disk 34.

[0072] The driving disk 22 can be driven by a motor or other power source, such as manual drive, to rotate, thereby generating a driving torque, which is orderly transmitted to the first closing and opening mechanism 2 and the second closing and opening mechanism 3, thereby driving the first closing and opening mechanism 2 and the second closing and opening mechanism 3, so that the pre-charge moving contact and the main charging moving contact rotate successively. The driving disk 22 has an annular main body 221 and at least one first arc groove 221a arranged on the main body 221. A pre-charge driving pin 26 that axially penetrates the pre-charge main disk 24 is fixedly connected to the pre-charge main disk 24, one end of the pre-charge driving pin is matched and connected with the pre-charge main shaft connecting disk 25, and the other end is inserted into the first arc groove 221a, and can slide along the direction of the first arc groove 221a, thereby realizing the relative rotation between the driving disk 22 and the pre-charge main disk 24, wherein the two ends of each first arc groove 221a cooperate with the pre-charge driving pin 26 to form a stop for the rotation of the driving disk 22. Here, the pre-fill idle distance a between the drive disk 22 and the pre-fill main disk 24 is set by the slidability of the pre-fill drive pin 26 in the first arc-shaped groove 221 a.

[0073] exist Figures 15 to 17 In the illustrated embodiment, a protrusion 222 protrudes axially from the central region of the drive disk 22 surrounding the pre-fill support shaft 21 and two lugs 223 are arranged opposite to the protrusion 222. As shown in the figure, a main charge driving gear 23 is arranged on the side of the main body 221 facing the protrusion 222. The main charge driving gear 23 is generally annular in structure, has teeth on at least part of its outer circumference, and has a concave portion 231 in the center for the protrusion 222 and the lug 223 to pass through. Figure 15In the illustrated embodiment, the recess 231 is configured with a central circular section 231a that mates with the shape of the protrusion 222. The protrusion 222 is rotatably supported in the circular section 231a. The recess 231 is further configured with an arcuate section 231b adjacent to the circular section 231a. The lug 223 is slidably inserted into the arcuate section 231b. Thus, the entire drive disk 22 can be passed through the main charge drive gear 23 and can rotate relative to the main charge drive gear 23 about the precharge support shaft 21. Herein, the cooperation between the two ends of each arcuate section 231b and the lug 223 constitutes a stop for the rotation of the drive disk 22. Here, a first main charge dead band b1 between the drive disk 22 and the main charge drive gear 23 is set through the cooperation between the lug 223 and the arcuate section 231b.

[0074] In another alternative embodiment not shown in the figures, the main charge drive gear 23 is configured to rotate synchronously with the drive disk 22. Herein, the main charge drive gear 23 is torsionally fixed to the drive disk 22 or integrally formed with the drive disk 22, so that there is no relative rotation between the main charge drive gear 23 and the drive disk 22. In this embodiment, no dead band is provided between the drive disk 22 and the main charge drive gear 23.

[0075] The main charge drive disk 33 is annularly configured and has teeth formed on at least a part of its outer periphery. In addition, at least one second arcuate groove 33a is formed in the main charge drive disk 33. A main charge drive pin 36 axially passing through the main charge main disk 34 is fixedly connected to the main charge main disk 34. One end of the main charge drive pin is cooperatively connected to the main charge main shaft connection disk 35, and the other end is inserted into the second arcuate groove 33a and can slide along the trend of the second arcuate groove 33a, thereby realizing the relative rotation between the main charge drive gear 33 and the main charge main disk 34. Herein, the cooperation between the two ends of each second arcuate groove 33a and the main charge drive pin 36 constitutes a stop for the rotation of the main charge drive gear 33. Here, a second main charge dead band b2 between the main charge drive gear 33 and the main charge main disk 34 is set through the slidability of the main charge drive pin 36 in the second arcuate groove 33a.

[0076] When the drive disk 22 is configured to be rotatable relative to the main charge drive gear 23, the main charge dead band b is the sum of the first main charge dead band b1 and the second main charge dead band b2; when the drive disk 22 is configured to rotate synchronously with the main charge drive gear 23, the main charge dead band b is the second main charge dead band b2.

[0077] The main charging drive gear 23 meshes with the main charging drive disk 33, so that the driving torque can be transmitted to both the pre-charging main disk 24 and the main charging main disk 24. Due to the setting of the pre-charging idle stroke a and the main charging idle stroke b, the orderliness of the driving torque is achieved. Among them, the drive disk 22 rotates the main charging idle stroke b only after rotating the pre-charging idle stroke a, which makes the rotation of the pre-charging main disk 24 always prior to that of the main charging main disk 34.

[0078] In addition, as Figures 15 to 17 shown, the drive mechanism 1 further includes a pre-charging biasing device 27 for the first closing and opening mechanism 2 and a main charging biasing device 37 for the second closing and opening mechanism 3. In this embodiment, these two biasing devices are structurally identical, and the following will explain their structures with the pre-charging biasing device 27 for the first closing and opening mechanism 2.

[0079] The pre-charging biasing device 27 includes a pre-charging biasing bracket 271, a pre-charging biasing base 272, and a pre-charging biasing spring 273. One end of the pre-charging biasing bracket 271 is constructed with a fork-shaped portion, and the other end is constructed with a long hole extending longitudinally. The pre-charging biasing base 272 is pivotally mounted on the base around the pre-charging biasing pivot pin 274, and a perforation is constructed on the pre-charging biasing base 272 for the end of the pre-charging biasing bracket 271 with the long hole to pass through. Among them, the pre-charging biasing pivot pin 274 passes through the long hole of the pre-charging biasing bracket 271 and moves longitudinally along the long hole. The fork-shaped portion of the pre-charging biasing bracket 271 is supported on the pre-charging drive pin 26, and a pre-charging biasing spring 273 is sleeved between the fork-shaped portion and the pre-charging biasing base 272. When the pre-charging main disk 24 rotates driven by the drive disk 22, the pre-charging biasing spring 273 compresses and expands, prompting the pre-charging biasing bracket 271 to move. When the pre-charging biasing spring 273 is compressed to the maximum extent, that is, when it reaches its dead point, the pre-charging drive shaft 26, the pre-charging biasing pivot pin 274, and the pre-charging support shaft 21 are substantially in a straight line.

[0080] Correspondingly, the main charging biasing device 37 includes a main charging biasing bracket 371, a main charging biasing base 372, and a main charging biasing spring 373. The fork-shaped portion of the main charging biasing bracket 371 is supported on the main charging drive pin 36, and a main charging biasing spring 373 is sleeved between the fork-shaped portion and the main charging biasing base 372. When the main charging main disk 34 rotates driven by the main charging drive disk 33, the main biasing spring 373 compresses and expands, prompting the main charging biasing bracket 371 to move. When the main charging biasing spring 373 is compressed to the maximum extent, that is, when it reaches its dead point, the main charging drive shaft 36, the main charging biasing pivot pin 374, and the main charging support shaft 31 are substantially in a straight line.

[0081] The following will explain the working principle of the drive mechanism 1 with the help of Figures 18 to 26 to illustrate.

[0082] When Figure 18In the state shown, the switching device is in the open state. Among them, the pre-charging moving contact (not shown) is disconnected from the pre-charging fixed contact, and the main charging moving contact is disconnected from the main charging fixed contact. The lug 222 of the drive disk 22 abuts against the starting end of the arc section 231b, that is, it has not yet turned through the first main charging idle stroke b1; the pre-charging drive pin 26 abuts against the starting end of the first arc groove 221a under the action of the pre-charging biasing device 27, that is, it has not yet turned through the pre-charging idle stroke a; the main charging drive pin 36 is located in the middle of the second main charging idle stroke b2 under the action of the main charging biasing device 37.

[0083] When it is necessary to switch the switching device from Figure 18 the open state shown to Figure 22 the closed state shown, the drive disk 22 is rotated counterclockwise by means of a motor or a manually operated handle. As Figure 19 shown, the drive disk 22 has turned through the pre-charging idle stroke a, and the pre-charging drive pin 26 abuts against the end of the first arc groove 221a, thereby driving the pre-charging main disk 24 to rotate counterclockwise, so that the pre-charging biasing device 27 is compressed; in addition, the drive disk 22 has also completed the first main charging idle stroke b1, and the lug 222 abuts against the end of the arc section 231b, thereby driving the main charging drive gear 23 to rotate counterclockwise, and further driving the main charging drive disk 33 to rotate clockwise, so as to turn through the second main charging idle stroke b2. In Figure 19 the state described above, the drive disk 22 has just turned through the second main charging idle stroke b2, and the main charging drive pin 36 abuts against the end of the second arc groove 33a, and has not yet driven the main charging main disk 34 to rotate. The pre-charging biasing device 27 is at the pre-charging fully closed point. At this time, the pre-charging drive shaft 26, the pre-charging biasing pivot pin 274 and the pre-charging support shaft 21 are substantially in a straight line.

[0084] As Figure 20 shown, when the pre-charging biasing device 27 passes through the pre-charging fully closed point, it drives the pre-charging drive pin 26 to continue to move counterclockwise to the starting end of the first arc groove 221a, thereby driving the pre-charging main disk 24 to continue to rotate, and further driving the pre-charging moving contact (not shown) to move relative to the pre-charging fixed contact, realizing the pre-charging closed position of the pre-charging circuit.

[0085] As Figure 21 shown, when the drive disk 22 continues to rotate counterclockwise, the main charging drive gear 23 drives the main charging drive disk 33 to continue to rotate clockwise, and further drives the main charging main disk 34 to rotate clockwise, so that the main charging biasing device 37 is compressed. When it reaches the main charging fully closed point, the main charging drive shaft 36, the main charging biasing pivot pin 374 and the main charging support shaft 31 are substantially in a straight line.

[0086] As Figure 22As shown, when the main charging bias device 37 passes the main charging closing dead point, it drives the main charging drive pin 36 to continue moving clockwise to the middle of the second arc-shaped groove 33a, thereby driving the main charging main disk 34 to continue rotating clockwise, and further driving the main charging moving contact (not shown) to move relative to the main charging static contact, achieving the main charging closing position of the main charging circuit.

[0087] Thus, the closing operation of the switch device is realized by means of the driving mechanism 1.

[0088] When it is necessary to switch the switch device from Figure 22 the closing state shown to Figure 26 the opening state shown, the driving disk 22 is rotated clockwise by means of a motor or a manually operated handle. As Figure 23 shown, the driving disk 22 has rotated through the pre-charging idle stroke a, thereby driving the pre-charging main disk 24 to rotate clockwise, compressing the pre-charging bias device 27; in addition, the driving disk 22 has also completed the first main charging idle stroke b1, and further drives the main charging drive disk 33 to rotate counterclockwise, thereby rotating through the second main charging idle stroke b2. In Figure 23 the state described above, the pre-charging bias device 27 is at the pre-charging full dead point, at this time, the pre-charging drive shaft 26, the pre-charging bias pivot pin 274 and the pre-charging support shaft 21 are approximately in a straight line.

[0089] As Figure 24 shown, when the pre-charging bias device 27 passes the pre-charging full dead point, it drives the pre-charging drive pin 26 to continue moving clockwise, thereby driving the pre-charging main disk 24 to continue rotating, and further driving the pre-charging moving contact (not shown) to move relative to the pre-charging static contact, achieving the pre-charging full position of the pre-charging circuit.

[0090] As Figure 25 shown, when the driving disk 22 continues to rotate clockwise, the main charging drive gear 23 drives the main charging drive disk 33 to continue rotating counterclockwise, and further drives the main charging main disk 34 to continue rotating counterclockwise, so that the main charging bias device 37 is compressed. When it reaches the main charging full dead point, the main charging drive shaft 36, the main charging bias pivot pin 374 and the main charging support shaft 31 are approximately in a straight line.

[0091] As Figure 26 shown, when the main charging bias device 37 passes the main charging closing dead point, it drives the main charging drive pin 36 to continue moving counterclockwise to the middle of the second arc-shaped groove 33a, thereby driving the main charging main disk 34 to continue rotating counterclockwise, and further driving the main charging moving contact (not shown) to move relative to the main charging static contact, achieving the main charging full position of the main charging circuit.

[0092] Thus, the opening operation of the switch device is realized by means of the driving mechanism 1.

[0093] Figures 15 - 26The driving mechanism 6 shown is not equipped with the first closing and opening lever 28 and the second closing and opening lever 38. The first closing and opening lever 28 and the second closing and opening lever 38 can be fixed to the pre-filling main disk 24 and the main filling main disk 34, respectively. When the locking mechanism 4 releases the lock on the movable bracket 51 and the pre-filling main disk 24 is located in the pre-filling position, the movable bracket 51 can drive the first closing and opening lever 28, and drive the pre-filling main disk 24 and the driving disk 22 to rotate in the counterclockwise direction via the first closing and opening lever 28, so that the pre-filling main disk 24 moves from the pre-filling position to the pre-fulfilling position. When the locking mechanism releases the lock on the movable bracket and the main filling main disk 34 is located in the main filling position, the movable bracket 51 can drive the second closing and opening lever 38, and drive the main filling main disk 34 and the second driving disk 33 to rotate in the clockwise direction via the second closing and opening lever 38, so that the main filling main disk 34 moves from the main filling position to the main full position.

[0094] The following describes the locking mechanism 4. It should be noted that the present disclosure does not limit the configuration of the locking mechanism 4, as long as the locking mechanism can lock the mobile bracket in the energy storage position and release the locking of the mobile bracket after the mobile bracket moves to the energy storage position.

[0095] Figures 27A - 33B A schematic diagram of a locking mechanism 4 according to an embodiment of the present disclosure is shown. Figure 27A , Figure 28A , Figure 29A , Figure 30A , Figure 31A , Figure 32A , Figure 33A A cross-sectional view is shown in FIG. Figure 27B , Figure 28B , Figure 29B , Figure 30B , Figure 31B , Figure 32B , Figure 33B A sectional view at another cross section is respectively shown. Figure 27A and Figure 27B can correspond to Figure 1B and Figure 1C .

[0096] The locking mechanism 4 is particularly suitable for an energy storage mechanism 5 having a direct compression spring.

[0097] like Figures 27A - 33BAs shown, the locking mechanism 4 includes an energy storage lever 41, a locking lever 42, a toggle assembly, a release member 46 and a matching toggle member 45. The energy storage lever 41 is rotatably connected to the housing 1 around the energy storage rotation axis. The locking lever 42 is rotatably connected to the housing 1 around the locking rotation axis. The release member 46 and the matching toggle member 45 are fixedly connected to each other and are rotatably connected to the housing 1 around the release rotation axis. The toggle assembly includes a first toggle lever 43 and a second toggle lever 44. The first toggle lever 43 is rotatably mounted to the housing 1 around the first toggle lever axis. The second toggle lever 44 is rotatably mounted to the first toggle lever 43 around the second toggle lever axis. The energy storage rotation axis is parallel, the locking rotation axis, the release rotation axis, the first toggle lever axis and the second toggle lever axis are parallel to each other, and are all perpendicular to the paper plane ( Figures 27A - 33B ) direction.

[0098] In addition, the lock mechanism 4 further includes an energy storage biasing member (not shown), a lock biasing member (not shown), a matching toggle biasing member (not shown), a first toggle biasing member (not shown) and a second toggle biasing member (not shown). These biasing members may be torsion springs.

[0099] The energy storage biasing member biases the energy storage lever 41 in the counterclockwise direction. The lock biasing member biases the lock lever 42 in the clockwise direction. The mating toggle biasing member biases the trip member 46 and the mating toggle member 45 in the clockwise direction. The first toggle biasing member biases the first toggle lever 43 in the counterclockwise direction. The second toggle biasing member biases the second toggle lever 44 in the counterclockwise direction relative to the first toggle lever 43.

[0100] The locking mechanism 4 includes an initial position and a locking position. In the locking position, the locking mechanism 4 locks the locking engagement portion 511 of the energy storage mechanism 5 in the energy storage position. In the initial position, the locking mechanism 4 releases the locking of the locking engagement portion 511 of the energy storage mechanism 5 to allow the locking engagement portion 511 to move to the energy release position. When the locking engagement portion 511 moves from the energy release position to the energy storage position, the locking engagement portion 511 pushes the energy storage lever 41 to rotate in the clockwise direction against the biasing force of the energy storage biasing member, and passes over one end of the energy storage lever 41, so that the locking mechanism 4 moves from the initial position to the locking position. The release member 46 includes an avoidance position and a stop position. When the locking mechanism 4 is in the locking position, the release member 46 is in the stop position and stops the locking lever 42 from rotating in the counterclockwise direction. The locking lever 42 stops the energy storage lever 41 from rotating in the clockwise direction, thereby locking the locking mechanism 4 to the locking position. When the locking mechanism 4 is in the locking position, the energy storage lever 41 stops the locking engagement portion 511 from moving from the energy storage position to the energy release position. When the release member 46 is triggered to rotate to the avoidance position, the release member 46 releases the stop on the locking lever 42, so that the locking mechanism 4 moves from the locking position to the initial position. Therefore, the energy storage lever 41 releases the stop on the locking engagement portion 511, so that the locking engagement portion moves from the energy storage position to the energy release position.

[0101] Figure 34A and Figure 34B shows a perspective schematic view of the energy storage lever 41 according to an embodiment of the present disclosure. As Figure 34A and Figure 34B shown, the energy storage lever 41 includes a first energy storage lever arm 416 extending from the energy storage rotation axis toward the locking engagement portion 511 and a second energy storage lever arm 417 extending from the energy storage rotation axis toward the locking lever 42. In this example, the first energy storage lever arm 416 and the second energy storage lever arm 417 extend substantially in opposite directions. The free end of the first energy storage lever arm 416 is used to cooperate with the locking engagement portion 511 and has a first energy storage lever surface 411 and a second energy storage lever surface 412 (to be described in detail below). In this example, the first energy storage lever surface 411 and the second energy storage lever surface 412 are joined at an angle to each other to facilitate the locking engagement portion 511 to cross from one side of the second energy storage lever surface 412 over the first energy storage lever arm 416 to one side of the first energy storage lever surface 411, and to cross from one side of the first energy storage lever surface 411 over the first energy storage lever arm 416 to one side of the second energy storage lever surface 412 (to be described in detail below). The second energy storage lever arm 417 has a third energy storage lever surface 413 on one side in the counterclockwise direction and a fourth energy storage lever surface 414 on one side in the clockwise direction. In addition, the second energy storage lever 41 also includes a fifth energy storage lever surface 415 on one side in the clockwise direction between the energy storage rotation axis and its free end (to be described in detail below).

[0102] Figure 35A and Figure 35B shows a perspective view of the latch lever 42 according to an embodiment of the present disclosure. As Figure 35A and Figure 35B shown, the latch lever 42 includes a latch lever arm 426 extending from a latch rotation axis. The latch rotation axis is disposed at one end in the longitudinal direction of the latch lever arm 426. The latch lever 42 further includes a first protrusion 427 extending in a lateral direction toward the energy storage lever 41 at the other end in the longitudinal direction of the latch lever arm 426, a second protrusion 428 extending in a lateral direction toward the energy storage lever 41 at an intermediate position in the longitudinal direction of the latch lever arm 426, and a third protrusion 429 extending in a lateral direction toward the energy storage lever 41 at one end of the latch lever arm 426. The latch lever 42 further includes a first latch lever surface 421, a second latch lever surface 422, a third latch lever surface 423, a fourth latch lever surface 424, and a fifth latch lever surface 425 (to be described in detail below). The first latch lever surface 421 is disposed on one side of the second protrusion 428 in the clockwise direction. The second latch lever surface 422 is disposed on the other side of the second protrusion 428 in the counterclockwise direction. The third latch lever surface 423 is disposed at the end of the first protrusion 427, and in the latched position, the release member 46 abuts against the third latch lever surface 423 to stop the latch lever 42. The fourth latch lever surface 424 is disposed on one side of the third protrusion 429 in the clockwise direction for cooperation with the fourth energy storage lever surface 414 of the energy storage lever 41. The fifth latch lever surface 425 is disposed on the latch lever arm 426 between the first protrusion 427 and the second protrusion 428.

[0103] Figure 36A and Figure 36B shows a perspective view of a toggle assembly according to an embodiment of the present disclosure. As Figure 36A and Figure 36BAs shown, the toggle assembly includes a first toggle lever 43 and a second toggle lever 44 rotatably connected to the first toggle lever 43. The first toggle lever 43 includes a first toggle lever arm 431, a second toggle lever arm 432, and a fifth toggle lever arm 433 extending from the first toggle lever axis. The second toggle lever arm 432 includes two second toggle lever arms 432 that are parallel to each other and spaced apart. The second toggle lever 44 is mounted to the first toggle lever 43 between the two second toggle lever arms 432 so that its second toggle lever axis is disposed at the free end of the second toggle lever arm 432. The second toggle lever 44 includes a third toggle lever arm 441 and a fourth toggle lever arm 442 extending from the second toggle lever axis. The toggle portion 443 is disposed at the free end of the fourth toggle lever arm 442. The second toggle biasing member biases the second toggle lever 44 counterclockwise relative to the first toggle lever 43 so that one side of the third toggle lever arm 441 of the second toggle lever 44 in the counterclockwise direction abuts against a portion between the first toggle lever arm 431 and the second toggle lever arm 432 of the first toggle lever 43 .

[0104] Figure 37 FIG. 4 shows a three-dimensional schematic diagram of a release member 46 and a mating toggle member 45 according to an embodiment of the present disclosure. Figure 37 As shown, the trip member 46 and the mating toggle 45 are fixedly connected to each other. The trip member 46 is generally cylindrical, and includes a trip stop portion 461 and an escape cutout 462 in the trip stop portion 461. The mating toggle 45 includes a mating toggle arm 451 extending from the trip rotation axis and a mating toggle portion 452. A cylindrical mating toggle stop portion 453 is fixed to the free end of the mating toggle arm 451.

[0105] Figures 27A - 27B FIG. 4 shows a locking mechanism 4 in an initial position according to an embodiment of the present disclosure. Figures 27A - 27B As shown, in the initial position, the first locking lever surface 421 of the locking lever 42 abuts against the first stop portion 11 provided on the housing 1. The locking lever 42 is stopped by the first stop portion 11 to overcome the biasing force of the locking biasing member. In addition, the third energy storage lever surface 413 of the energy storage lever 41 abuts against the second locking lever surface 422 of the locking lever 42. The locking lever 42 stops the energy storage lever 41 to overcome the biasing force of the energy storage biasing member. Therefore, the locking lever 42 and the energy storage lever 41 are maintained in the initial position, wherein the free end of the first energy storage lever arm 416 of the energy storage lever 41 is on the moving path of the locking mating portion 511.

[0106] like Figures 27A - 27BAs shown, in the initial position, the fifth toggle lever arm 433 of the first toggle lever 43 is set to be stopped by the second stop portion 12 of the housing 1 to overcome the biasing force of the first toggle biasing member. In addition, the third toggle lever arm 441 of the second toggle lever 44 abuts against the first toggle lever 43 to overcome the biasing force of the second toggle biasing member. Therefore, the toggle assembly is held in the initial position, where the free end of the first toggle lever arm 431 of the first toggle lever 43 is on the movement path of the latching engagement portion 511.

[0107] As Figures 27A - 27B shown, in the initial position, the mating toggle stop portion 453 is stopped by the housing 1 to overcome the biasing force of the mating toggle biasing member. The release stop portion 461 of the release member 46 is in the stop position, where the release stop portion 461 is on the rotational movement path of the first protrusion 427 of the latching member.

[0108] Figures 31A - 31B Fig. shows the latching mechanism 4 in the initial position according to an embodiment of the present disclosure. As Figures 31A - 31B shown, in the latching position, the latching engagement portion 511 abuts against the second energy storage lever surface 412 of the energy storage lever 41 to apply a force to the energy storage lever 41 to rotate it in the clockwise direction, and this force is used to overcome the biasing force of the energy storage biasing member. The fourth energy storage lever surface 414 of the second energy storage lever arm 417 of the energy storage lever 41 abuts against the fourth latching lever surface 424 of the third protrusion 429 of the latching lever 42 to apply a force to the latching lever 42 to rotate it in the counterclockwise direction, and this force overcomes the biasing force of the latching biasing member. The third latching lever surface 423 of the first protrusion 427 of the latching lever 42 abuts against the release stop portion 461 in the stop position and is stopped from rotating in the counterclockwise direction by the release stop portion 461. Therefore, the energy storage lever 41 and the latching lever 42 are held in the latching position.

[0109] As Figures 31A - 31B shown, in the latching position, the latching engagement portion 511 abuts against the first toggle lever arm 431 of the first toggle lever 43 to apply a force to the first toggle lever 43 to rotate it in the counterclockwise direction, thereby overcoming the biasing force of the first toggle biasing member. In addition, the third toggle lever arm 441 of the second toggle lever 44 abuts against the first toggle lever 43. Therefore, the toggle assembly is held in the latching position.

[0110] Figures 27A - 31B Fig. shows the process of the latching mechanism 4 moving from the initial position to the latching position according to an embodiment of the present disclosure.

[0111] As Figures 27A - 31BAs shown, when the lock fitting portion 511 moves from the energy release position to the energy storage position from bottom to top, the lock fitting portion 511 overcomes the biasing force of the energy storage biasing member and drives the energy storage lever 41 to rotate in the clockwise direction by abutting against the second energy storage lever surface 412 of the energy storage lever 41. Therefore, the lock fitting portion 511 passes over the free end of the first energy storage lever arm 416 of the energy storage lever 41, so that the lock mechanism 4 moves from the initial position to the lock position.

[0112] Figure 29A and Figure 29B The locking mechanism 4 is shown in a first intermediate position. Figure 29A and Figure 29B As shown, the locking mechanism 4 also includes a first intermediate position in the process from the initial position to the locking position.

[0113] In the process of the lock fitting portion 511 moving from the energy release position to the energy storage position from bottom to top, the lock fitting portion 511 drives the first toggle lever 43 and the second toggle lever 44 to rotate in the clockwise direction by overcoming the biasing force of the first toggle biasing member. Figures 27A - 29B As shown, the toggle portion 443 on the fourth toggle lever arm 442 of the second toggle lever 44 passes over the mating toggle portion 452 of the mating toggle member 45, and in the process of passing over, overcomes the biasing force of the mating toggle biasing member to drive the mating toggle member 45 and the release member 46 to rotate in the counterclockwise direction, so that the release member 46 rotates from the stop position to the avoidance position in the counterclockwise direction. The energy storage lever 41 rotates in the clockwise direction, so that the free end of the first energy storage lever arm 416 leaves the moving path of the mating lock portion between the energy storage position and the energy release position, so as to allow the lock fitting portion 511 to pass over the free end of the first energy storage lever arm 416. At this time, the lock fitting portion 511 passing over the free end of the first energy storage lever arm 416 means that the lock fitting portion 511 passes over the first energy storage lever arm 416 from one side of the first energy storage lever surface 411 to one side of the second energy storage lever surface 412. As shown in FIG. Figure 28A and Figure 28B As shown, when the energy storage lever 41 rotates in the clockwise direction, the energy storage lever 41 drives the locking lever 42 to rotate in the counterclockwise direction via the fourth energy storage lever surface 414 and the fourth locking lever surface 424. Figures 28A - 29B As shown, since the tripping member 46 is in the avoidance position, the first protrusion 427 of the locking lever 42 enters the avoidance cutout 462. Figures 29A - 29B As shown, the counterclockwise rotation of the lock lever 42 can be stopped by the first stopper 11 via the fifth lock lever surface 425, the clockwise rotation of the energy storage lever 41 can be stopped by the second stopper 12 via the fifth energy storage lever surface 415, and the second protrusion 428 can abut against the second energy storage lever arm 417. Figures 29A - 31BAs shown, after the lock fitting portion 511 passes over the free end of the first energy storage lever arm 416, due to the biasing force of the energy storage biasing member, the energy storage lever 41 rotates counterclockwise back to the moving path of the lock fitting portion 511, and abuts against the lock fitting portion 511 via the second energy storage lever surface 412. Due to the biasing force of the lock biasing member and the push of the energy storage lever 41, the lock lever 42 rotates clockwise so that the first protrusion 427 leaves the avoidance cutout 462. After the toggle portion 443 of the second toggle lever 44 passes over the mating toggle portion 452 of the mating toggle member 45, and after the first protrusion 427 of the lock lever 42 leaves the avoidance cutout 462, due to the biasing force of the mating toggle biasing member, the release member 46 rotates clockwise from the avoidance position to the stop position. Therefore, as described above, the third locking lever surface 423 of the first protrusion 427 of the locking lever 42 abuts against the tripping stop portion 461 to maintain the locking position of the locking mechanism 4 .

[0114] Figures 31A - 33B The process of the locking mechanism 4 moving from the locking position to the initial position according to the embodiment of the present disclosure is shown. Figure 32A and Figure 32B The locking mechanism 4 is shown in the second intermediate position. Figure 32A and Figure 32B As shown, the locking mechanism 4 also includes a second intermediate position in the process from the locking position to the initial position.

[0115] like Figures 31A - 33B as well as Figure 27A and Figure 27B As shown, the tripping member 46 is triggered and rotates in a counterclockwise direction under the action of an external force to switch from the stop position to the avoidance position. Therefore, the tripping member 46 releases the stop on the lock lever 42, thereby moving the lock mechanism 4 from the energy storage position to the initial position.

[0116] like Figures 31A - 33B As shown, when the tripping member 46 is triggered and the tripping member 46 is switched to the avoidance position, the lock lever 42 is driven by the energy storage lever 41 to overcome the biasing force of the lock biasing member and rotate counterclockwise, so that the first protrusion 427 enters the avoidance cutout 462. As the lock lever 42 rotates in the counterclockwise direction, the stop on the energy storage lever 41 is released, and the energy storage lever 41 rotates in the clockwise direction to leave the movement path of the lock fitting part 511 between the energy storage position and the energy release position, so as to allow the lock fitting part 511 to move downward from the side of the second energy storage lever surface 412 over the first energy storage lever arm 416 to the side of the first energy storage lever surface 411, and move from the energy storage position to the energy release position. Therefore, the movable bracket 51 to which the lock fitting part 511 is installed can drive the drive mechanism to open the fusion switch. As shown in FIG. Figure 32A and Figure 32BAs shown, the first protrusion 427 of the latch lever 42 enters the avoidance notch 462, the second energy storage lever arm 417 of the energy storage lever 41 is stopped by the second stop portion 12 of the housing 1, and the latch lever arm 426 of the latch lever 42 is stopped by the first stop portion 11 of the housing 1. Then, as Figure 33A and Figure 33B as well as Figure 27A and Figure 27B shown, the energy storage lever 41 rotates counterclockwise back to the initial position under the biasing force of the energy storage biasing member, the latch lever 42 rotates clockwise back to the initial position under the biasing force of the latch biasing member, and the first protrusion 427 of the latch lever 42 leaves the avoidance notch 462.

[0117] As Figures 31A - 33B as well as Figure 27A and Figure 27B shown, when the latch engaging portion 511 moves from the energy storage position to the energy release position, the latch engaging portion 511 releases the stop on the first toggle lever 43, causing the first toggle lever 43 to rotate counterclockwise. The first toggle lever 43 drives the toggle portion 443 of the second toggle lever 44 mounted thereon to cross over the mating toggle portion 452 of the mating toggle member 45 to return to the initial position. As Figure 33A and Figure 33B shown, when the toggle portion 443 of the second toggle lever 44 crosses over the mating toggle portion 452 of the mating toggle member 45, due to the interference between the toggle portion 44 and the mating toggle portion 452, the second toggle lever 44 can rotate clockwise relative to the first toggle lever 43 to reduce the distance of the toggle portion 443 from the first toggle axis. Therefore, the toggle portion 443 can smoothly cross over the mating toggle portion 452, and the mating toggle member 45 and the release member 46 do not have to move back to the stop position at this time. Therefore, the latch mechanism can operate reliably.

[0118] The latch device according to an embodiment of the present disclosure has a simple structure, reliable operation, and a small occupied volume.

[0119] The latch device according to an embodiment of the present disclosure can be applied to various switch devices, such as disconnector switches, isolating switches, etc., and is particularly suitable for cooperating with various direct-acting energy storage spring mechanisms. The application range is relatively wide. The latch device according to an embodiment of the present disclosure adopts a three-link structure of a latch lever arm, a first energy storage lever arm, and a second energy storage lever arm during latching, and can convert a large spring force into a small release force, which is convenient for matching with various release devices.

[0120] The scope of the present disclosure is not limited by the embodiments described above, but is defined by the appended claims and their equivalent scope.

Claims

1. A tripping device, comprising: A housing; An energy storage mechanism, comprising: A helical compression spring for storing energy for a tripping operation; A moving bracket configured to move relative to the housing between an energy storage position and an energy release position in a translation direction to compress and release the helical compression spring respectively; A locking mechanism configured to lock the moving bracket in the energy storage position after the moving bracket moves to the energy storage position and to be able to release the locking of the moving bracket; and A driving mechanism, comprising: A driving disc configured to rotate relative to the housing between a closing driving position and a reset opening position about a driving disc rotation axis, A first closing-opening lever connected to the driving disc, When the driving disc rotates from the reset opening position to the closing driving position in the second rotation direction, the driving disc drives the moving bracket to move from the energy release position to the energy storage position, When the locking mechanism releases the locking of the moving bracket and the driving disc is in the closing driving position, the moving bracket moves from the energy storage position to the energy release position and drives the driving disc to rotate in the first rotation direction via the first opening lever.

2. The tripping device according to claim 1, wherein One end of the helical compression spring is fixed to the housing and the other end is fixed to the moving bracket.

3. The tripping device according to claim 1, wherein The energy storage mechanism includes at least one guiding protrusion fixed to the moving bracket, The housing includes a linear guiding groove, The at least one guiding protrusion is disposed in the linear guiding groove to guide the moving bracket to translate in the translation direction.

4. The tripping device according to claim 1, wherein The locking mechanism includes an initial position and a locking position. In the locking position, the locking mechanism locks the locking engagement portion in the energy storage position. In the initial position, the locking mechanism releases the locking of the locking engagement portion to allow the locking engagement portion to move to the energy release position, wherein, The locking mechanism includes: An energy storage lever rotatably connected to the housing about an energy storage rotation axis; A locking lever rotatably connected to the housing about a locking rotation axis parallel to the energy storage rotation axis; A tripping member mounted to the housing to rotate between an avoidance position and a stop position about a tripping rotation axis parallel to the energy storage rotation axis, When the locking engagement portion moves from the energy release position to the energy storage position, the locking engagement portion can overcome and push the energy storage lever to rotate in the first rotation direction and pass over the first end of the energy storage lever close to the locking engagement portion, so that the locking mechanism moves from the initial position to the locking position, When the lock mechanism is in the lock position, the energy storage lever stops the lock fitting part from moving from the energy storage position toward the energy release position, the release member is in the stop position and stops the lock lever from rotating in the second rotation direction, and the lock lever stops the energy storage lever from rotating in the first rotation direction. The tripping member can be triggered to rotate to the avoidance position to release the stopper on the lock lever, thereby moving the lock mechanism from the energy storage position to the initial position.

5. The latch device according to claim 4, wherein, The locking mechanism also includes: an energy storage biasing member that biases the energy storage lever toward the second rotational direction; A lock biasing member biases the lock lever toward the first rotational direction.

6. The locking device according to claim 12, wherein: The housing comprises a first stopper, In the initial position, the lock lever is stopped by the first stopper to overcome the biasing force of the lock biasing member, and the lock lever stops the energy storage lever to overcome the biasing force of the energy storage biasing member.

7. The locking device according to claim 4, wherein: The energy storage lever comprises a first energy storage lever arm extending from the energy storage rotation axis, the free end of the first energy storage lever arm is the first end and the first energy storage lever arm has a first energy storage lever surface and a second energy storage lever surface, When the lock-fitting portion moves from the energy-releasing position to the energy-storing position, the lock-fitting portion abuts against the first energy-storing lever surface of the energy-storing lever to push the energy-storing lever. When the locking mechanism is in the locking position, the locking mating portion abuts against the second energy storage lever surface of the energy storage lever to apply a force to the energy storage lever to rotate the energy storage lever in the first rotation direction.

8. The locking device according to claim 7, wherein: The first energy storage lever surface and the second energy storage lever surface are connected to form an angle with each other, When the lock-fitting portion passes over the first end of the energy storage lever, the lock-fitting portion is converted from a state of abutting against the first energy storage lever surface to a state of abutting against the second energy storage lever surface.

9. The locking device according to claim 7, wherein: The locking mechanism further includes a first intermediate position during the process from the initial position to the locking position, and a second intermediate position during the process from the locking position to the initial position. In the first intermediate position and the second intermediate position, the first end of the energy storage lever leaves the moving path of the mating lock portion between the energy storage position and the energy release position to allow the mating lock portion to pass over the first end of the energy storage lever, The tripping member includes a tripping stop portion and an escape cutout in the tripping stop portion, In the locking position, the locking lever is stopped by the tripping stop portion of the tripping member. In the first intermediate position and the second intermediate position, the latch lever rotates in the second rotational direction to pass through the escape notch when the trip member moves to the escape position.

10. The latch device according to claim 9, wherein, the latch lever includes a latch lever arm extending in a longitudinal direction, the latch rotation axis is provided at one end of the latch lever arm in the longitudinal direction, the latch lever further includes a first protrusion extending in a lateral direction toward the energy storage lever at the other end of the latch lever arm in the longitudinal direction, and a second protrusion extending in the lateral direction toward the energy storage lever at an intermediate position of the latch lever arm, the latch lever further includes a first latch lever surface, a second latch lever surface, and a third latch lever surface, the first latch lever surface is provided on one side of the second protrusion in the first rotation direction, and in the initial position, the first stopper abuts against the first latch lever surface to stop the latch lever, the second latch lever surface is provided on one side of the second protrusion in the second rotation direction, and in the initial position, the latch lever stops the energy storage lever via the second latch lever surface, the third latch lever surface is provided at the end of the first protrusion, and in the latched position, the latching stop portion of the release member abuts against the third latch lever surface to stop the latch lever.

11. The latch device according to claim 10, wherein, when the latch mechanism moves from the initial position to the first intermediate position, the latch engagement portion pushes the energy storage lever to rotate in the first rotation direction via the second energy storage lever surface and pushes the latch lever to rotate in the second rotation direction via the energy storage lever, when the latch mechanism moves from the latched position to the second intermediate position, the latch engagement portion pushes the energy storage lever to rotate in the first rotation direction via the first energy storage lever surface and pushes the latch lever to rotate in the second rotation direction via the energy storage lever.

12. The release device according to claim 1, wherein the energy storage mechanism includes: a drive guiding member mounted to the moving bracket, a drive mechanism including: a drive attachment mounted to the drive disk to rotate between a first abutting position and a second abutting position about a drive attachment rotation axis parallel to the drive disk rotation axis, and the drive attachment moves from the first abutting position to the second abutting position by rotating in the first rotation direction, when the drive disk rotates from the reset opening position to the closing drive position in the first rotation direction, the drive disk pushes the moving bracket to move from the energy release position to the energy storage position via the drive attachment and the drive guiding member, wherein the drive attachment is located at the first abutting position and drives the drive guiding member, when the drive disk moves from the reset opening position to the closing drive position and after the moving bracket moves from the energy release position to the energy storage position, the drive attachment passes over the drive guiding member and is in the second abutting position, When the movable bracket is locked in the energy storage position by the locking mechanism, the drive disk can move from the closing drive position to the reset opening position in the second rotation direction without driving the movable bracket to move, wherein the drive attachment is located at the second abutting position, and the second rotation direction is opposite to the first rotation direction.

13. The tripping device according to claim 12, wherein the drive attachment includes a drive shaft sleeve for cooperating with the drive guiding member. At the first abutting position, the distance between the drive shaft sleeve and the rotation axis of the drive disk is a first distance, and at the second abutting position, the distance between the drive shaft sleeve and the rotation axis of the drive disk is a second distance less than the first distance.

14. The tripping device according to claim 13, wherein the second distance is configured such that: when the movable bracket is locked in the energy storage position by the locking mechanism, when the drive disk moves back from the closing drive position to the reset opening position in the second rotation direction, the drive shaft sleeve of the drive attachment does not contact the drive guiding member.

Images