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, and the driving accessory is located at the first abutting position. Under the condition that the elastic component is locked in the energy storage state, the driving disc can move from the closing driving position to the reset opening position in the second rotating direction, the elastic component is not driven to be converted into the energy storage state, the driving accessory is located at the second abutting position, 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 avoid wasting the hard-won electricity, energy storage, as an important supporting technology, is increasingly applied. Among them, electrochemical energy storage based on batteries has a broad development prospect.

[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 (e.g., a fusion switch) is used to control the charging and discharging of the batteries. The high-voltage box may 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 interrupt 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, reliable operation, and is particularly suitable for fusion switch devices with a main charge circuit and a pre-charge circuit.

[0006] At least some embodiments of the present disclosure provide a tripping device, comprising: a housing, an energy storage mechanism, a locking mechanism, and a driving mechanism. The energy storage mechanism includes: an elastic member for storing energy for a tripping operation and including an energy storage state and an energy release state. 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 is capable of releasing the locking of the moving bracket. The driving mechanism includes: a driving disk configured to rotate relative to the housing between a closing driving position and a reset opening position about a driving disk rotation axis; and a driving attachment mounted to the driving disk to rotate between a first abutting position and a second abutting position about a driving attachment rotation axis parallel to the driving disk rotation axis, and the driving attachment moves from the first abutting position to the second abutting position by rotating in a first rotation direction. When the driving disk rotates from the reset opening position to the closing driving position in the first rotation direction, the driving disk drives the energy storage mechanism to convert from the energy release state to the energy storage state via the driving attachment, wherein the driving attachment is in the first abutting position. In the case where the elastic member is locked in the energy storage state, the driving disk can move from the closing driving position to the reset opening position in a second rotation direction without driving the elastic member to convert to the energy storage state, wherein the driving attachment is in the second abutting position, and the second rotation direction is opposite to the first rotation direction.

[0007] For example, in some embodiments, the energy storage mechanism includes: a moving bracket configured to move relative to the housing between an energy storage position and an energy release position to respectively place the elastic member in the energy storage state and the energy release state; and a driving guiding member mounted to the moving bracket. The driving disk also pushes the moving bracket from the energy release position to the energy storage position via the driving guiding member to drive the energy storage mechanism to convert from the energy release state to the energy storage state. When the driving disk moves from the reset opening position to the closing driving position and after the moving bracket moves from the energy release position to the energy storage position, the driving attachment passes over the driving guiding member and is in the second abutting position.

[0008] For example, in some embodiments, the driving attachment includes a driving bushing for cooperating with the driving guiding member. In the first abutting position, the distance between the driving bushing and the driving disk rotation axis is a first distance, and in the second abutting position, the distance between the driving bushing and the driving disk rotation axis is a second distance less than the first distance.

[0009] For example, in some embodiments, the second distance is configured such that when the driving disk moves back from the closing driving position to the reset opening position in the second rotation direction with the moving bracket locked in the energy storage position by the locking mechanism, the driving bushing of the driving attachment does not contact the driving guiding member.

[0010] For example, in some embodiments, at the first abutment position, the rotation of the drive attachment in the first rotation direction is stopped by the drive disk. At the second abutment position, the rotation of the drive attachment in the second rotation direction is stopped by the drive disk.

[0011] For example, in some embodiments, the drive attachment includes a first drive attachment arm and a second drive attachment arm extending from the drive attachment rotation axis. A drive bushing is provided at the end of the first drive attachment arm. When the drive attachment is in the first abutment position, the second drive attachment arm abuts the drive disk, and when the drive attachment is in the second abutment position, the first drive attachment arm abuts the drive disk.

[0012] For example, in some embodiments, the drive guide member is mounted to the moving bracket to be rotatable relative to the moving bracket about a drive guide axis parallel to the drive disk rotation axis.

[0013] For example, in some embodiments, when the drive disk moves from the reset opening position to the closing drive position and when the moving bracket moves from the energy release position to the energy storage position, the drive attachment moves from one side of the drive guide member in the first rotation direction across the drive guide member to the other side of the drive guide member in the second rotation direction. When the drive disk pushes the moving bracket from the energy release position to the energy storage position via the drive attachment and the drive guide member, the drive guide member is in a third abutment position stopped by the moving bracket. The drive disk further includes a tripping opening position between the closing drive position and the reset opening position. When the drive disk is in the closing drive position, the energy stored in the elastic member can be released to drive the moving bracket from the energy storage position to the energy release position and drive the drive disk from the closing drive position to the tripping opening position, where the drive attachment is in the second abutment position. When the drive disk is in the tripping opening position, the drive attachment is on the side of the drive guide member in the second rotation direction, and the drive attachment abuts the drive guide member to rotate the drive guide member from the third abutment position in the first rotation direction against the biasing force of the drive guide biasing member.

[0014] For example, in some embodiments, the tripping device is configured such that when the drive disk is not subjected to a driving torque, the drive disk can be held in the tripping opening position. When the drive disk is driven to move from the tripping opening position to the reset opening position, the drive attachment is in the second abutment position and moves from the side of the drive guide member in the second rotation direction across the drive guide member to the side of the drive guide member in the first rotation direction.

[0015] For example, in some embodiments, the moving bracket has an arcuate guide opening, and a drive limit portion of the drive guide member is provided in the arcuate guide opening to be stopped by the moving bracket.

[0016] For example, in some embodiments, the drive guide member has a curved guide surface on one side in the second rotational direction and a flat drive surface on one side in the first rotational direction, and the curved guide surface extends radially outwardly and curvedly in the first rotational direction with respect to the drive guide axis.

[0017] For example, in some embodiments, the energy storage mechanism further includes a drive guide biasing member configured to bias the drive guide member towards the second rotational direction.

[0018] For example, in some embodiments, the drive mechanism further includes a drive biasing member configured to bias the drive attachment towards the first rotational direction.

[0019] For example, in some embodiments, the drive mechanism further includes a first make-break lever connected to the drive disk and configured to rotate about the drive disk rotation axis. When the energy stored in the elastic member is released, the moving bracket is configured to drive the drive disk to rotate in the second rotational direction via the first make-break lever.

[0020] For example, in some embodiments, the tripping device is used for a fusion switch. The drive mechanism includes a first make-break mechanism for a pre-charge circuit and a second make-break mechanism for a main charge circuit. The first make-break mechanism includes a drive disk, a first make-break lever connected to the drive disk, and a pre-charge main disk fixedly connected to the first make-break lever. The first make-break lever and the pre-charge main disk are configured to rotate about the drive disk rotation axis. The pre-charge main disk drives the pre-charge moving contact to move relative to the pre-charge stationary contact, so as to be able to switch between a pre-charge closed position and a pre-charge open position. In the pre-charge closed position, the pre-charge stationary contact and the pre-charge moving contact are closed, and in the pre-charge open position, the pre-charge stationary contact and the pre-charge moving contact are disconnected. The second make-break mechanism includes a second drive disk power-connected to the drive disk, a second make-break lever connected to the second drive disk, and a main-charge main disk fixedly connected to the second make-break lever. The second drive disk, the second make-break lever, and the main-charge main disk are configured to rotate about a second drive disk rotation axis parallel to the drive disk rotation axis. The main-charge main disk drives the main-charge moving contact to move relative to the main-charge stationary contact, so as to be able to switch between a main-charge closed position and a main-charge open position. In the main-charge closed position, the main-charge stationary contact and the main-charge moving contact are closed, and in the main-charge open position, the main-charge stationary contact and the main-charge moving contact are disconnected. When the energy stored in the elastic member is released and the main-charge main disk is in the main-charge closed position, the moving bracket is configured to drive the first make-break lever such that the pre-charge main disk moves from the pre-charge closed position to the pre-charge open position in the second rotational direction, and drive the second make-break lever such that the main-charge main disk moves from the main-charge closed position to the main-charge open position in the first rotational direction. The translation direction of the moving bracket intersects the connection line of the rotation of the drive disk rotation axis and the rotation of the second drive disk rotation axis.

[0021] For example, in some embodiments, the movable bracket translates between an energy storage position and an energy release position in a translation direction. The elastic member is a helical compression spring, one end of which is fixed to the housing and the other end is fixed to the movable bracket. The helical compression spring extends along an extension axis, which is between the first closing and opening mechanism and the second closing and opening mechanism.

[0022] For example, in some embodiments, a pre-charge idle stroke is provided between the drive disc and the pre-charge main disc, and a main charge idle stroke is provided between the second drive disc and the main charge main disc. The pre-charge idle stroke and the main charge idle stroke cooperate such that the drive disc rotates through the main charge idle stroke only after rotating through the pre-charge idle stroke, so that the driving torque is transmitted to the pre-charge main disc first and then to the main charge main disc. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figures 1 - 4 FIG. shows a schematic diagram of the energy storage closing process of a tripping device according to an embodiment of the present disclosure;

[0024] Figures 5 - 6 FIG. shows a schematic diagram of the energy storage opening process of a tripping device according to an embodiment of the present disclosure;

[0025] Figures 7 - 9 FIG. shows a schematic diagram of the energy release opening process of a tripping device according to an embodiment of the present disclosure, where Figures 1 - 9 the locking mechanism is not shown;

[0026] Figure 10 and Figure 11 FIG. shows a schematic diagram of the energy storage mechanism of a tripping device according to an embodiment of the present disclosure, Figure 12 FIG. shows a schematic diagram of the movable bracket of the energy storage mechanism of a tripping device according to an embodiment of the present disclosure;

[0027] Figure 13 FIG. shows a schematic diagram of the drive disc and drive accessories of a tripping device according to an embodiment of the present disclosure;

[0028] Figure 14A FIG. shows a schematic diagram of the pre-charge main disc and the first closing and opening lever in the drive mechanism of a tripping device according to an embodiment of the present disclosure;

[0029] Figure 14B FIG. shows a schematic diagram of the main charge main disc and the second closing and opening lever in the drive mechanism of a tripping device according to an embodiment of the present disclosure;

[0030] Figure 15 Schematically shows an embodiment of the drive mechanism according to the present invention;

[0031] Figure 16 Schematically shows Figure 15 a view of another angle of the shown drive mechanism;

[0032] Figure 17 Schematically show Figure 15 the shown driving mechanism, but the driving disc is removed in this view;

[0033] Figure 18 Schematically show the driving mechanism when the fusion switch device is in the open position;

[0034] Figure 19 Schematically show Figure 18 the subsequent state of the shown driving mechanism, wherein the pre-charge biasing device is at the pre-charge closing dead point;

[0035] Figure 20 Schematically show the driving mechanism when the fusion switch device is in the pre-charge closing position;

[0036] Figure 21 Schematically show Figure 20 the subsequent state of the shown driving mechanism, wherein the main charge biasing device is at the main charge closing dead point;

[0037] Figure 22 Schematically show the driving mechanism when the fusion switch device is in the closed position;

[0038] Figure 23 Schematically show Figure 22 the subsequent state of the shown driving mechanism, wherein the main charge biasing device is at the main charge opening dead point;

[0039] Figure 24 Schematically show the driving mechanism when the fusion switch device is in the pre-charge opening position;

[0040] Figure 25 Schematically show Figure 24 the subsequent state of the shown driving mechanism, wherein the main charge biasing device is at the main charge opening dead point;

[0041] Figure 26 Schematically show the driving mechanism when the fusion switch device is in the open position. Detailed implementation manner

[0042] Next, a tripping device according to an embodiment of the present disclosure will be described in detail with reference to the accompanying drawings.

[0043] Figures 1 - 4 A schematic diagram showing the energy storage closing process of a tripping device according to an embodiment of the present disclosure is shown. Figures 5 - 6 A schematic diagram showing the energy storage opening process of a tripping device according to an embodiment of the present disclosure is shown. Figures 7 - 9 A schematic diagram showing the energy release opening process of a tripping device according to an embodiment of the present disclosure is shown.

[0044] As Figures 1 - 9As shown, the trip device includes a housing 1, a locking mechanism (not shown), an energy storage mechanism 5, and a driving mechanism 6. The locking mechanism, the energy storage mechanism 5, and the driving mechanism 6 are installed in the housing 1. The trip device is included, for example, in a fusion switch, but the present disclosure is not limited thereto.

[0045] Figures 1 - 4 The schematic diagram of the energy storage closing process of the trip device according to an embodiment of the present disclosure is shown. During this process, the driving mechanism 6 drives the fusion switch to switch from the open state where both the main charging circuit and the pre-charging circuit are disconnected to the 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 the energy release state to the energy storage state to store energy. The locking mechanism locks the energy storage mechanism 5 in the energy storage state.

[0046] Figures 5 - 6 The schematic diagram of the energy storage opening process of the trip device according to an embodiment of the present disclosure is shown. When a fault occurs, the locking mechanism releases the locking of the energy storage mechanism 5, for example, 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 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.

[0047] Figures 7 - 9 The schematic diagram of the energy release opening process of the trip device according to an embodiment of the present disclosure is shown. During this process, the locking mechanism 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 opening and closing operations of the driving mechanism 6. Therefore, the energy storage mechanism 5 only needs to store energy once, and 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.

[0048] Figure 10 and Figure 11 The schematic diagram of the energy storage mechanism of the trip device according to an embodiment of the present disclosure is shown, Figure 12 The schematic diagram of the moving bracket of the energy storage mechanism of the trip device according to an embodiment of the present disclosure is shown.

[0049] As Figures 10 - 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 12As 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. A 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 a 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, and two guiding protrusions 515 are fixed to the second bracket side portion 512. When the fusion switch device is in the closing state, the driving mechanism 6 drives the moving bracket 51 to translate upwards 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 locks the energy storage mechanism 5 in the energy storage state. When a fault occurs, the latching mechanism 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 fusion switch device 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 downwards to release the helical compression spring 52, thereby causing the energy stored in the helical compression spring 52 to be used to drive the fusion switch device to open. One guiding protrusion 515 fixed to the first bracket side portion 516 near the latching mechanism can be used as a latching cooperation portion 511 for cooperating with the latching mechanism. For example, the latching mechanism locks and releases the latching mechanism by cooperating with the latching cooperation portion 511. The latching mechanism can use a mechanism known in the prior art for locking, and the present disclosure does not limit it. For example, the latching mechanism can include a latching portion cooperating with the latching cooperation portion 511, which is capable of moving (linearly or rotationally) between a locking position and a tripping position, thereby locking the energy storage mechanism 5 or releasing the locking of the energy storage mechanism.

[0050] As Figures 10 - 12As shown, the drive guiding member 54 is mounted to the moving bracket 51 so as to be rotatable relative to the moving bracket 51 about the drive guiding axis. The drive guiding biasing member 55 is used to bias the drive guiding member 54 in the counterclockwise direction. The drive guiding member 54 can be a torsion spring, one end of which abuts against the moving bracket 51 and the other end of which abuts against the drive guiding member 54. The moving bracket 51 has an arc-shaped guiding opening 517, and the drive limiting portion of the drive guiding member 54 is disposed in the arc-shaped guiding opening 517 to be blocked by the moving bracket 51. The drive guiding member 54 has a curved guiding surface 542 on the counterclockwise direction (second rotation direction) side and a flat driving surface 541 on the clockwise direction (first rotation direction) side, and the curved guiding surface 542 extends radially outwardly curved in the clockwise direction relative to the drive guiding axis.

[0051] As Figures 1 - 4 shown, the drive mechanism 6 includes a first closing-opening mechanism 2 and a second closing-opening mechanism 3. The first closing-opening mechanism 2 includes a drive disk 22, a first closing-opening lever 28, and a pre-charging main disk 24 fixedly connected to the first closing-opening lever 28 (see Figures 15 - 26 ). The second closing-opening mechanism 3 includes a second drive disk 33 power-connected to the drive disk 22 (see Figures 15 - 26 ), a second closing-opening lever 38, and a main charging main disk 34 fixedly connected to the second closing-opening lever 38. The drive disk 22 is configured to rotate between a closing drive position and a reset opening position relative to the housing 1 about a drive disk rotation axis parallel to the drive accessory rotation axis. The first closing-opening lever 28 and the pre-charging main disk 24 are connected to the drive disk 22 and configured to rotate about the drive disk rotation axis. The second drive disk 33, the second closing-opening lever 38, and the main charging main disk 34 are configured to rotate about a second drive disk rotation axis parallel to the drive disk rotation axis.

[0052] The first closing-opening mechanism 2 further includes a drive accessory 29, which is mounted to the drive disk 22 to rotate between a first abutting position and a second abutting position about a drive accessory rotation axis parallel to the drive disk guiding axis. The drive accessory 29 moves from the first abutting position to the second abutting position by rotating in the clockwise direction.

[0053] The helical compression spring 52 extends along an extension axis, which is disposed between the first closing-opening mechanism 2 and the second closing-opening mechanism 3, such that the energy storage mechanism 5 cooperates with the first closing-opening mechanism 2 in the drive mechanism 6 via the drive guiding member 54, and cooperates with both the first closing-opening lever 28 of the first closing-opening mechanism 2 and the second closing-opening lever 38 of the second closing-opening mechanism 3 in the drive mechanism via the bottom 513 of the moving bracket.

[0054] According to an embodiment of the present disclosure, the energy storage mechanism adopts a helical compression spring (direct pressure spring) that moves only in the translational direction. Therefore, it occupies a small volume and is convenient for arrangement. 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 the second closing and opening mechanism 3, and does not significantly increase the volume of the driving mechanism 6.

[0055] It should be noted that the present disclosure does not limit the energy storage mechanism. For example, the elastic member can adopt a form different from the helical compression spring. For example, the elastic member is not limited to translational movement and can also perform rotational movement, etc.

[0056] It should be noted that the driving mechanism is not limited to the above-mentioned driving mechanism having the first closing and opening mechanism 2 and the second closing and opening mechanism 3. For example, the driving mechanism can include only one closing and opening mechanism. For example, this closing and opening mechanism can include only the driving disk 22 and the first closing and opening lever 28, without including the pre-charging main disk 24, and the first closing and opening lever 28 can be fixed to the driving disk 22.

[0057] Figure 13 A schematic diagram of the driving disk 22 and the driving accessory 29 of the tripping device according to an embodiment of the present disclosure is shown.

[0058] As Figure 13 shown, the driving accessory 29 is rotatably mounted on the driving disk 22, and the driving accessory biasing member 291 is mounted between the driving accessory 29 and the driving disk 22 to bias the driving accessory 29 in the clockwise direction. The driving accessory biasing member 291 is, for example, a torsion spring, one end of which abuts against the driving accessory 29 and the other end abuts against the driving disk 22. In addition, the driving accessory 29 further includes a driving shaft sleeve 292 for cooperating with the driving guide member 54.

[0059] The energy storage closing process of the tripping device is introduced below. During the energy storage closing process, the driving disk 22 rotates from the reset opening position in the clockwise direction to the closing driving 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.

[0060] As Figure 1 shown, the driving 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 driving accessory 29 is biased by the driving accessory biasing member 291 to the second abutting position in the clockwise direction, and the driving guide member 54 is biased by the driving guide biasing member 55 to the third abutting position in the counterclockwise direction.

[0061] As Figures 1 - 4As 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 accessory 29 and the drive guiding member 54. During this process, the drive bushing 292 of the drive accessory 29 abuts against the flat drive surface 541 of the drive guiding member 54( Figure 2 ), crosses from one side of the flat drive surface 541 of the drive guiding member 54 (i.e., the clockwise side) to one side of the curved guiding surface 542 of the drive guiding member 54 (i.e., the counterclockwise side)( Figure 3 ), and after the drive accessory 29 crosses the drive guiding member 54, the drive disk 22 drives the drive accessory 29 to continue moving in the clockwise direction to the closing drive position( Figure 4 ).

[0062] As Figure 2 and Figure 3 shown, when the drive bushing 292 of the drive accessory 29 abuts against the flat drive surface 541 of the drive guiding 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 3 ). The drive bushing 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 bushing 292 and the drive disk rotation axis is the first distance, and in the second abutting position, the distance between the drive bushing 292 and the drive disk rotation axis is a second distance less than the first distance. As Figure 4 shown, after the drive accessory 29 crosses the drive guiding member 54, the drive accessory 29 returns to the second abutting position.

[0063] As Figure 3 shown, when the drive accessory 29 crosses the drive guiding member 54, the moving bracket 51 (i.e., the latch engaging part) moves upward to the limit 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.

[0064] As Figure 4 shown, after the drive accessory 29 crosses the drive guiding 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.

[0065] When the moving bracket 51 is in the energy storage position and the first closing mechanism and the second closing mechanism are in the closed state, the first closing and opening lever 28 and the second closing and opening lever 38 are positioned at a distance from the bottom 513 of the moving bracket.

[0066] In the tripping device according to an embodiment of the present disclosure, as long as the driving mechanism 6 drives the first closing and opening mechanism 2 and / or the second closing and opening mechanism 3 to switch from the open state to the closed state, the energy storage mechanism will switch or remain 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 open state. Therefore, the reliability of the tripping function is ensured.

[0067] The energy storage and opening process of the tripping device is introduced below. During the energy storage and opening process, the locking mechanism keeps locking 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.

[0068] As Figures 5 - 6 shown, the driving disk 22 rotates in the counterclockwise direction. The driving accessory 29 is biased to the second abutting position by the driving accessory biasing member 291. 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 smaller than the first distance at the first abutting position. This second distance can be configured such that when the moving bracket 51 is locked in the energy storage position by the locking mechanism, when 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 can be switched between the closed state and the open state.

[0069] The energy storage and opening process of the tripping device is introduced below. During the energy storage and opening process, the locking mechanism 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 closed state to the open state via the driving mechanism 6. For example, the locking mechanism 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 can be paired with a shunt release, so as to remotely control the tripping device to quickly trip and open. For example, the locking mechanism can be paired with a short-circuit tripping unit, so as to quickly trip when a short-circuit current in the main circuit is detected.

[0070] As Figures 7 - 9As shown, since the locking mechanism 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-charging main disk 24) and the second driving disk 33 (and the main charging 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 opening position.

[0071] As Figures 7 - 9 shown, the moving bracket 51 drives the driving guide member 54 to move downward, and the driving disk 22 drives the driving accessory 29 to rotate in the counterclockwise direction. As Figure 9 shown, the driving disk 22 is in the tripping opening position. In the tripping opening position, the driving accessory 29 is located at the second abutting position and is on one side (i.e., the counterclockwise side) of the curved guiding surface 542 of the driving guide member 54. The driving accessory 29 abuts against the driving guide member 54 to rotate the driving guide member 54 in the clockwise direction from the third abutting position against the biasing force of the driving guide biasing member 55.

[0072] When the fault is eliminated, the driving disk 22 is driven to move from the tripping opening position to the reset opening position (as Figure 1 shown). When the driving disk 22 moves from the tripping opening position to the reset opening position, the driving accessory 29 is located at the second abutting position and pushes the driving guide member 54 to continue rotating in the clockwise direction. Therefore, the driving accessory 29 moves from one side of the driving guide member 54 on the curved guiding surface 542 to the other side of the driving guide member 54 on the flat driving surface 541. The curved guiding surface 542 is designed such that the driving shaft sleeve 292 of the driving accessory 29 smoothly moves along the curved guiding surface 542 to move from one side of the driving guide member 54 on the curved guiding surface 542 to the other side of the driving guide member 54 on the flat driving surface 541.

[0073] By designing the biasing force of the biasing member, etc., when the driving disk 22 is not subjected to a driving torque, the driving disk 22 can be held at the tripping opening position. When in the tripping opening position, the driving mechanism can no longer drive the first closing and opening mechanism 2 and / or the second closing and opening mechanism 3 to switch to the closing state. Therefore, it is possible to prevent the first closing and opening mechanism 2 and / or the second closing and opening mechanism 3 from being driven to switch to the closing state when the fault has not been eliminated.

[0074] The driving mechanism 6 will be introduced below. It should be noted that the present disclosure does not limit the configuration of the driving mechanism 6. The configuration of the driving mechanism 6 can be modified according to application requirements.

[0075] The driving mechanism 6 is applicable to 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 a pre-charging moving contact to move relative to a pre-charging static contact, so as to be able to switch between a pre-charging closing position and a pre-charging opening position. The second closing and opening mechanism 3 includes a second driving disk power-connected to the driving disk 22 and a main-charging main disk. The main-charging main disk drives a main-charging moving contact to move relative to a main-charging static contact, so as to be able to switch between a main-charging closing position and a main-charging opening position. A pre-charging dead zone is provided between the driving disk and the pre-charging main disk, and a main-charging dead zone is provided between the second driving disk and the main-charging main disk. Wherein, the pre-charging dead zone and the main-charging dead zone cooperate such that the driving disk finishes rotating the main-charging dead zone only after finishing rotating the pre-charging dead zone, so that the driving torque is first transmitted to the pre-charging main disk and then to the main-charging main disk.

[0076] Figures 15 to 26 The driving mechanism according to an embodiment of the present disclosure is shown. For the sake of simplicity, the pre-charging moving contact, the pre-charging static contact, the main-charging moving contact, and the main-charging static contact are not specifically marked in the figure.

[0077] As Figure 15 shown, the driving mechanism 1 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 is connected to a pre-charging moving contact (not shown), drives the pre-charging moving contact to rotate, and makes it move relative to the pre-charging static contact, so as to realize the pre-charging closing position and the pre-charging opening position of the pre-charging circuit. In the pre-charging closing position, the pre-charging moving contact and the pre-charging static contact are closed. In the pre-charging opening position, the pre-charging moving contact and the pre-charging static contact are disconnected. The second closing and opening mechanism 3 is connected to a 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, so as to realize the main-charging closing position and the main-charging opening position of the main charging circuit. In the main-charging closing position, the main-charging moving contact and the main-charging static contact are closed. In the main-charging opening position, the main-charging moving contact and the main-charging static contact are disconnected.

[0078] Figures 15 to 17 The structural details of the driving mechanism 1 according to the present invention are shown.

[0079] 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.

[0080] 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.

[0081] 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.

[0082] exist Figures 15 to 17In the illustrated embodiment, a protrusion 222 axially protruding in the central region of the drive disk 22 surrounding the pre-charge support shaft 21 and two lugs 223 of an opposing structure adjacent to the protrusion 222. As shown in the figure, a main charge drive gear 23 is provided on one side of the main body 221 facing the protrusion 222. The main charge drive gear 23 has a generally annular structure, with a tooth portion formed on at least a part of its outer periphery, and a hollow portion 231 formed in its center for the protrusion 222 and the lugs 223 to pass through. In Figure 15 the illustrated embodiment, the hollow portion 231 is formed with a central circular section 231a that is shape-mated with the protrusion 222, and the protrusion 222 is rotatably supported in the circular section 231a. The hollow portion 231 is further formed with an arc section 231b adjacent to the circular section 231a, and the lugs 223 are slidably inserted into the arc section 231b. Thus, the entire drive disk 22 can be inserted through the main charge drive gear 23 and can rotate relative to the main charge drive gear 23 around the pre-charge support shaft 21. Among them, the cooperation between the two ends of each arc section 231b and the lugs 223 constitutes a stop for the rotation of the drive disk 22. Here, a first main charge dead zone b1 between the drive disk 22 and the main charge drive gear 23 is set through the cooperation between the lugs 223 and the arc section 231b.

[0083] In another alternative embodiment not shown in the figure, the main charge drive gear 23 is configured to rotate synchronously with the drive disk 22. Among them, the main charge drive gear 23 is anti-torsionally fixedly connected 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 zone is provided between the drive disk 22 and the main charge drive gear 23.

[0084] The main charge drive disk 33 is annularly configured and has a tooth portion formed on at least a part of its outer periphery. In addition, at least one second arc groove 33a is formed in the main charge drive disk 33. A main charge drive pin 36 axially penetrating 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 arc groove 33a and can slide along the direction of the second arc groove 33a, thereby realizing the relative rotation between the main charge drive gear 33 and the main charge main disk 34. Among them, the cooperation between the two ends of each second arc 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 zone 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 arc groove 33a.

[0085] When the drive disk 22 is configured to be rotatable relative to the main charge drive gear 23, the main charge dead stroke b is the sum of the first main charge dead stroke b1 and the second main charge dead stroke b2; when the drive disk 22 is configured to rotate synchronously with the main charge drive gear 23, the main charge dead stroke b is the second main charge dead stroke b2.

[0086] The main charge drive gear 23 meshes with the main charge drive disk 33, so that the driving torque can be transmitted to both the pre-charge main disk 24 and the main charge main disk 24. Due to the setting of the pre-charge dead stroke a and the main charge dead stroke b, the orderliness of the driving torque is achieved. Among them, the drive disk 22 rotates the main charge dead stroke b after rotating the pre-charge dead stroke a, which makes the rotation of the pre-charge main disk 24 always prior to that of the main charge main disk 34.

[0087] In addition, as Figures 15 to 17 shown, the drive mechanism 1 further includes a pre-charge biasing device 27 for the first closing and opening mechanism 2 and a main charge biasing device 37 for the second closing and opening mechanism 3. In this embodiment, these two biasing devices are constructed with the same structure, and the structure thereof will be explained below by means of the pre-charge biasing device 27 for the first closing and opening mechanism 2.

[0088] The pre-charge biasing device 27 includes a pre-charge biasing bracket 271, a pre-charge biasing base 272, and a pre-charge biasing spring 273. One end of the pre-charge biasing bracket 271 is constructed with a fork-shaped portion, and the other end is constructed with a long hole extending longitudinally. The pre-charge biasing base 272 is pivotally mounted on the base body around a pre-charge biasing pivot pin 274. A through hole is constructed on the pre-charge biasing base 272 for the end of the pre-charge biasing bracket 271 with the long hole to pass through. Among them, the pre-charge biasing pivot pin 274 passes through the long hole of the pre-charge biasing bracket 271 and moves longitudinally along the long hole. The fork-shaped portion of the pre-charge biasing bracket 271 is supported on the pre-charge drive pin 26, and a pre-charge biasing spring 273 is sleeved between the fork-shaped portion and the pre-charge biasing base 272. When the pre-charge main disk 24 rotates driven by the drive disk 22, the pre-charge biasing spring 273 compresses and expands, prompting the pre-charge biasing bracket 271 to move. When the pre-charge biasing spring 273 is compressed to the maximum extent, that is, when it reaches its dead point, the pre-charge drive shaft 26, the pre-charge biasing pivot pin 274, and the pre-charge support shaft 21 are substantially in a straight line.

[0089] Accordingly, the main charging bias device 37 includes a main charging bias bracket 371, a main charging bias base 372, and a main charging bias spring 373. The fork-shaped portion of the main charging bias bracket 371 is supported on the main charging drive pin 36, and the main charging bias spring 373 is sleeved between the fork-shaped portion and the main charging bias base 372. When the main charging main disk 34 rotates driven by the main charging drive disk 33, the main bias spring 373 compresses and expands, prompting the main charging bias bracket 371 to move. When the main charging bias 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 bias pivot pin 374, and the main charging support shaft 31 are substantially in a straight line.

[0090] The working principle of the drive mechanism 1 will be explained below with the help of Figures 18 to 26 illustrate the working principle of the drive mechanism 1.

[0091] In Figure 18 In 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 rotated through the first main charging dead space 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 bias device 27, that is, it has not yet rotated through the pre-charging dead space a; the main charging drive pin 36 is located in the middle of the second main charging dead space b2 under the action of the main charging bias device 37.

[0092] 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 rotated through the pre-charging dead space 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, causing the pre-charging bias device 27 to be compressed; in addition, the drive disk 22 has also rotated through the first main charging dead space 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 rotate through the second main charging dead space b2. In Figure 19 In the state described, the drive disk 22 has just rotated through the second main charging dead space 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 bias device 27 is at the pre-charging closing 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 substantially in a straight line.

[0093] As Figure 20As shown, when the pre-charging bias device 27 passes the pre-charging dead point, it drives the pre-charging drive pin 26 to continue moving counterclockwise to the starting end of the first arc-shaped groove 221a, thereby driving the pre-charging main disc 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 closing position of the pre-charging circuit.

[0094] As Figure 21 shown, when the drive disc 22 continues to rotate counterclockwise, the main charging drive gear 23 drives the main charging drive disc 33 to continue rotating clockwise, and further drives the main charging main disc 34 to rotate clockwise, so that the main charging bias device 37 is compressed. When it reaches the main charging 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.

[0095] As Figure 22 shown, when the main charging bias device 37 passes the main charging 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 disc 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.

[0096] Thus, the closing operation of the switching device is realized by means of the drive mechanism 1.

[0097] When it is necessary to switch the switching device from Figure 22 the closing state shown to Figure 26 the opening state shown, the drive disc 22 is rotated clockwise by means of a motor or a manually operated handle. As Figure 23 shown, the drive disc 22 has rotated through the pre-charging idle stroke a, thereby driving the pre-charging main disc 24 to rotate clockwise, compressing the pre-charging bias device 27; in addition, the drive disc 22 has also rotated through the first main charging idle stroke b1, and further driven the main charging drive disc 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 fully dead point, and 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.

[0098] As Figure 24 shown, when the pre-charging bias device 27 passes the pre-charging fully dead point, it drives the pre-charging drive pin 26 to continue moving clockwise, thereby driving the pre-charging main disc 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 fully open position of the pre-charging circuit.

[0099] As Figure 25As shown, when the drive disk 22 continues to rotate clockwise, the main charge drive gear 23 drives the main charge drive disk 33 to continue rotating counterclockwise, and further drives the main charge main disk 34 to continue rotating counterclockwise, so that the main charge biasing device 37 is compressed. When it reaches the main charge dead center, the main charge drive shaft 36, the main charge biasing pivot pin 374, and the main charge support shaft 31 are substantially in a straight line.

[0100] As Figure 26 shown, when the main charge biasing device 37 passes the main charge closing dead center, it drives the main charge drive pin 36 to continue moving counterclockwise to the middle of the second arc-shaped groove 33a, thereby driving the main charge main disk 34 to continue rotating counterclockwise, and further driving the main charge moving contact (not shown) to move relative to the main charge static contact, realizing the main charge full position of the main charge circuit.

[0101] Thus, the opening operation of the switching device is realized by means of the drive mechanism 1.

[0102] Figure 14A Shows a schematic diagram of the pre-charge main disk 24 and the first closing-opening lever 28 in the drive mechanism of the tripping device according to an embodiment of the present disclosure. Figure 14B Shows a schematic diagram of the main charge main disk 34 and the second closing-opening lever 38 in the drive mechanism of the tripping device according to an embodiment of the present disclosure.

[0103] Figures 15 - 26 The shown drive mechanism 6 does not install the first closing-opening lever 28 and the second closing-opening lever 38. As Figure 14A and Figure 14B shown, the first closing-opening lever 28 and the second closing-opening lever 38 can be respectively fixed to the pre-charge main disk 24 and the main charge main disk 34. When the locking mechanism releases the locking of the moving bracket 51 and the pre-charge main disk 24 is in the pre-charge closing position, the moving bracket 51 can drive the first closing-opening lever 28, and drive the pre-charge main disk 24 and the drive disk 22 to rotate counterclockwise via the first closing-opening lever 28, so that the pre-charge main disk 24 moves from the pre-charge closing position to the pre-charge full position. When the locking mechanism releases the locking of the moving bracket 51 and the main charge main disk 34 is in the main charge closing position, the moving bracket 51 can drive the second closing-opening lever 38, and drive the main charge main disk 34 and the second drive disk 33 to rotate clockwise via the second closing-opening lever 38, so that the main charge main disk 34 moves from the main charge closing position to the main charge full position.

[0104] The scope of the present disclosure is not limited by the above-described embodiments, but is defined by the appended claims and their equivalent scope.

[0105] List of reference numerals

[0106] Housing 1

[0107] First closing-opening mechanism 2

[0108] Pre-charging support shaft 21

[0109] Drive disk 22

[0110] Main body 221

[0111] First arc-shaped groove 221a

[0112] Protrusion 222

[0113] Lug 223

[0114] Main charging drive gear 23

[0115] Hollow portion 231

[0116] Circular section 231a

[0117] Arc-shaped section 231b

[0118] Pre-charging main disk 24

[0119] Pre-charging main shaft connecting disk 25

[0120] Pre-charging drive pin 26

[0121] Pre-charging biasing device 27

[0122] Pre-charging biasing bracket 271

[0123] Pre-charging biasing base 272

[0124] Pre-charging biasing spring 273

[0125] Pre-charging biasing pivot pin 274

[0126] First closing and opening lever 28

[0127] Drive accessory 29

[0128] Drive accessory biasing member 291

[0129] Drive shaft sleeve 292

[0130] Second closing and opening mechanism 3

[0131] Main charging support shaft 31

[0132] Main charging drive disk (second drive disk) 33

[0133] Second arc-shaped groove 33a

[0134] Main charging main disk 34

[0135] Main charging main shaft connecting disk 35

[0136] Main charging drive pin 36

[0137] Main charging bias device 37

[0138] Main charging bias bracket 371

[0139] Main charging bias base 372

[0140] Main charging bias spring 373

[0141] Main charging bias pivot pin 374

[0142] Second closing and opening lever 38

[0143] Energy storage mechanism 5

[0144] Moving bracket 51

[0145] Latch mating part 511

[0146] Second bracket side 512

[0147] Moving bracket bottom 513

[0148] Spring guide post 514

[0149] Guide projection 515

[0150] First bracket side 516

[0151] Arc guide opening 517

[0152] Helical compression spring (elastic member) 52

[0153] Energy storage mechanism mounting bracket 53

[0154] Linear guide groove 531

[0155] Drive guide member 54

[0156] Straight drive surface 541

[0157] Curved guide surface 542

[0158] Drive guide bias member 55

[0159] Drive mechanism 6.

Claims

1. A tripping device, comprising: A housing; An energy storage mechanism, comprising: An elastic member for storing energy for a tripping operation and including an energy storage state and an energy release state; and A driving mechanism, comprising: A driving disk configured to rotate relative to the housing between a closing driving position and a reset opening position about a driving disk rotation axis; and A driving accessory mounted to the driving disk to rotate between a first abutting position and a second abutting position about a driving accessory rotation axis parallel to the driving disk rotation axis, the driving accessory moving from the first abutting position to the second abutting position by rotating in a first rotation direction, When the driving disk rotates from the reset opening position to the closing driving position in the first rotation direction, the driving disk drives the energy storage mechanism to convert from the energy release state to the energy storage state via the driving accessory, wherein the driving accessory is located at the first abutting position. In the case where the elastic member is locked in the energy storage state, the driving disk can move from the closing driving position to the reset opening position in the second rotation direction without driving the elastic member to convert to the energy storage state, wherein the driving accessory is located at the second abutting position, and the second rotation direction is opposite to the first rotation direction.

2. The tripping device according to claim 1, wherein The energy storage mechanism includes: A moving bracket configured to move relative to the housing between an energy storage position and an energy release position to respectively place the elastic member in the energy storage state and the energy release state; and A driving guide member mounted to the moving bracket, The driving disk also pushes the moving bracket from the energy release position to the energy storage position via the driving guide member to drive the energy storage mechanism to convert from the energy release state to the energy storage state, When the driving disk moves from the reset opening position to the closing driving position and after the moving bracket moves from the energy release position to the energy storage position, the driving accessory crosses the driving guide member and is in the second abutting position.

3. The tripping device according to claim 2, wherein The driving accessory includes a driving shaft sleeve for cooperating with the driving guide member. In the first abutting position, the distance between the driving shaft sleeve and the driving disk rotation axis is a first distance, and in the second abutting position, the distance between the driving shaft sleeve and the driving disk rotation axis is a second distance less than the first distance.

4. The tripping device according to claim 3, wherein The second distance is configured such that: In the case where the moving bracket is locked in the energy storage position by the locking mechanism, when the driving disk moves back from the closing driving position to the reset opening position in the second rotation direction, the driving shaft sleeve of the driving accessory does not contact the driving guide member.

5. The tripping device according to claim 1, wherein In the first abutting position, the rotation of the driving accessory in the first rotation direction is blocked by the driving disk, In the second abutment position, the rotation of the drive attachment in the second rotation direction is blocked by the drive disk.

6. The tripping device according to claim 2, wherein the drive attachment includes a first drive attachment arm and a second drive attachment arm extending from the axis of rotation of the drive attachment, the drive sleeve is provided at the end of the first drive attachment arm, when the drive attachment is in the first abutment position, the second drive attachment arm abuts against the drive disk, and when the drive attachment is in the second abutment position, the first drive attachment arm abuts against the drive disk.

7. The tripping device according to claim 2, wherein the drive guiding member is mounted to the moving bracket so as to be rotatable relative to the moving bracket about a drive guiding axis parallel to the axis of rotation of the drive disk.

8. The tripping device according to claim 7, wherein when the drive disk moves from the reset opening position to the closing drive position and when the moving bracket moves from the energy release position to the energy storage position, the drive attachment moves from one side of the drive guiding member in the first rotation direction across the drive guiding member to the other side of the drive guiding member in the second rotation direction, when the drive disk pushes the moving bracket from the energy release position to the energy storage position via the drive attachment and the drive guiding member, the drive guiding member is in a third abutment position blocked by the moving bracket, the drive disk further includes a tripping opening position between the closing drive position and the reset opening position, when the drive disk is in the closing drive position, the energy stored in the elastic member can be released to drive the moving bracket from the energy storage position to the energy release position and drive the drive disk from the closing drive position to the tripping opening position, wherein the drive attachment is in the second abutment position, when the drive disk is in the tripping opening position, the drive attachment is on the side of the drive guiding member in the second rotation direction, and the drive attachment abuts against the drive guiding member to rotate the drive guiding member from the third abutment position in the first rotation direction against the biasing force of the drive guiding biasing member.

9. The tripping device according to claim 8, wherein the tripping device is configured such that when the drive disk is not subjected to a driving torque, the drive disk can be held in the tripping opening position, when the drive disk is driven to move from the tripping opening position to the reset opening position, the drive attachment is in the second abutment position and moves from the side of the drive guiding member in the second rotation direction across the drive guiding member to the side of the drive guiding member in the first rotation direction.

10. The tripping device according to claim 8, wherein the moving bracket has an arcuate guiding opening, and a driving limiting portion of the drive guiding member is provided in the arcuate guiding opening to be blocked by the moving bracket.

11. The tripping device according to claim 7, wherein The driving and guiding member has a curved guiding surface on one side in the second rotation direction and a flat driving surface on one side in the first rotation direction, and the curved guiding surface extends radially outward and curved in the first rotation direction with respect to the driving and guiding axis.

12. The tripping device according to claim 2, wherein The energy storage mechanism further includes a driving and guiding biasing member configured to bias the driving and guiding member toward the second rotation direction.

13. The tripping device according to claim 1, wherein The driving mechanism further includes a driving biasing member configured to bias the driving accessory toward the first rotation direction.

14. The tripping device according to claim 2, wherein The driving mechanism further includes a first closing and opening lever connected to the driving disk and configured to rotate about the driving disk rotation axis. When the energy stored in the elastic member is released, the moving bracket is configured to drive the driving disk to rotate in the second rotation direction via the first closing and opening lever.

15. The tripping device according to claim 2, wherein The tripping device is for a fusion switch. The driving mechanism includes a first closing and opening mechanism for a pre-charging circuit and a second closing and opening mechanism for a main charging circuit. The first closing and opening mechanism includes the driving disk, a first closing and opening lever connected to the driving disk, and a pre-charging main disk fixedly connected to the first closing and opening lever. The first closing and opening lever and the pre-charging main disk are configured to rotate about the driving disk rotation axis. The pre-charging main disk drives a pre-charging moving contact to move relative to a pre-charging static contact, so as to be able to switch between a pre-charging closed position and a pre-charging open position. In the pre-charging closed position, the pre-charging static contact and the pre-charging moving head are closed, and in the pre-charging open position, the pre-charging static contact and the pre-charging moving contact are disconnected. The second closing and opening mechanism includes a second driving disk power-connected to the driving disk, a second closing and opening lever connected to the second driving disk, and a main-charging main disk fixedly connected to the second closing and opening lever. The second driving disk, the second closing and opening lever, and the main-charging main disk are configured to rotate about a second driving disk rotation axis parallel to the driving disk rotation axis. The main-charging main disk drives a main-charging moving contact to move relative to a main-charging static contact, so as to be able to switch between a main-charging closed position and a main-charging open position. In the main-charging closed position, the main-charging static contact and the main-charging moving contact are closed, and in the main-charging open position, the main-charging static contact and the main-charging moving contact are disconnected. When the energy stored in the elastic member is released and the main-charging main disk is in the main-charging closed position, the moving bracket is configured to drive the first closing and opening lever, so that the pre-charging main disk moves from the pre-charging closed position to the pre-charging open position in the second rotation direction, and drive the second closing and opening lever, so that the main-charging main disk moves from the main-charging closed position to the main-charging open position in the first rotation direction. The translation direction of the moving bracket intersects the connection line of the rotation of the driving disk rotation axis and the rotation of the second driving disk rotation axis.

16. The tripping device according to claim 15, wherein The moving bracket translates between the energy storage position and the energy release position in the translation direction. The elastic member is a helical compression spring, one end of which is fixed to the housing and the other end is fixed to the moving bracket. The helical compression spring extends on the extension axis, and the extension axis is between the first closing and opening mechanism and the second closing and opening mechanism.

17. The tripping device according to claim 15, wherein A pre-charging idle stroke is provided between the driving disk and the pre-charging main disk, and a main-charging idle stroke is provided between the second driving disk and the main-charging main disk, wherein, The pre-charging idle stroke is coordinated with the main charging idle stroke, so that the driving disk completes the main charging 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.

Images