CN222088439U - switch - Google Patents

Abstract

The utility model relates to the field of electrical equipment, in particular to a switch, which comprises a shell, an energy storage mechanism, a release transmission assembly and a release transmission assembly, wherein the energy storage mechanism can be switched between a mechanism energy storage state and a mechanism energy release state, the release can be switched between the release energy storage state and the release energy release state, the release transmission assembly comprises the energy storage transmission assembly and the release transmission assembly, the energy storage transmission assembly is configured to be actuated by the energy storage mechanism to actuate the release to be switched from the release energy storage state to the release energy storage state in the switching process of the energy storage mechanism from the mechanism energy release state to the mechanism energy storage state, and the release transmission assembly is configured to be actuated by the release to allow the release to be switched from the mechanism energy storage state to the mechanism energy release state in the switching process of the release from the release energy storage state to the release energy state. The switch has at least enhanced control capability.

Description

Switch

Technical Field

The utility model relates to the field of electrical equipment, in particular to a switch.

Background

At present, new energy power generation is greatly developed, but the defects of the new energy power generation are problems of instability, time mismatch, energy waste and the like. In order to ensure the stability of the generated energy of new energy, and not wasting the electric power which is difficult, the energy storage is used as an important matching technology, and is increasingly applied to the electrochemical energy storage which mainly uses batteries, and has a wide development prospect.

In the current energy storage power station, batteries are connected in series to form a battery pack and then connected in series to form battery clusters, and each battery cluster is provided with a high-voltage box for controlling the charge and discharge of the batteries. The high voltage box will typically include a manual disconnect switch, two main loop contactors and a series resistance pre-charge loop contactor. The positive electrode and the negative electrode are protected by a fuse in a short circuit way.

When the application scene of the client is that the battery pack is required to store energy, the operation steps of the client are that 1, the pre-charging loop is switched on, 2, the main loop is switched on, and 3, the pre-charging loop is switched off. And if the battery pack is in a charging state and the charging is required to be stopped, the step 4 is required to be performed, namely the main loop is disconnected. When the control loop is abnormal (power down or voltage drop) or the charging loop is abnormal (such as overcurrent less than fuse protection), the main loop needs to be quickly disconnected, and the charging process of the battery is disconnected.

Disclosure of utility model

In order to solve the problems, according to a first aspect of the utility model, a switch is provided, which is characterized by comprising a shell, an energy storage mechanism capable of being switched between a mechanism energy storage state and a mechanism energy release state, a release capable of being switched between a release energy storage state and a release energy release state, a release transmission assembly, wherein the release transmission assembly comprises an energy storage transmission assembly and a release transmission assembly, the energy storage transmission assembly is configured to be actuated by the energy storage mechanism to actuate the release to be switched from the release energy storage state to the release energy storage state in the process of switching the release from the release energy storage state to the release energy storage state, and the release transmission assembly is configured to be actuated by the release to allow the release to be switched from the mechanism energy storage state to the release energy state in the process of switching the release from the release energy storage state to the release energy state.

According to the switch provided by the utility model, the tripping devices such as the undervoltage tripping device or the shunt tripping device can be selectively installed, and the tripping devices control the energy storage mechanism to rapidly switch off. For example, in the case of installing an under-voltage release, when the control loop is powered down or the voltage is reduced, the energy storage mechanism is tripped and opened, and the energy storage mechanism cannot be closed when the control loop voltage is not recovered, and can be normally closed when the control loop voltage is recovered. Under the condition of installing the shunt release, a user can remotely control the shunt release to carry out quick release and break, and can also instruct the shunt release to carry out release and break through logic judgment according to the main loop overcurrent acquired by the system. Thus, the switch according to the utility model has at least an enhanced control capability.

A switch according to the present utility model may have one or more of the following features.

According to one embodiment, the energy storage mechanism preferably comprises an energy storage drive movable relative to the housing, wherein the energy storage drive is located in a mechanism release position and a mechanism storage position, respectively, when the energy storage mechanism is in a mechanism release state and a mechanism storage state, respectively, wherein the energy storage transmission assembly is configured to be actuated by the energy storage drive to actuate the trip to transition from the trip release state to the trip storage state.

According to one embodiment, preferably, the energy storage mechanism further comprises a latch mechanism including a trip member mounted to the housing and movable between a trip member evading position and a trip member blocking position, the latch mechanism allowing movement of the energy storage drive member between a mechanism energy release position and a mechanism energy storage position when the trip member is in the trip member evading position, the latch mechanism preventing movement of the energy storage drive member from the mechanism energy storage position to the mechanism energy release position when the trip member is in the trip member blocking position.

According to one embodiment, the trip preferably comprises a trip body, and a trip push rod and a first lever mounted on the trip body, wherein the trip push rod and the first lever are connected to each other, the trip push rod is movable between a push rod energy storage position and a push rod energy release position, and the first lever is correspondingly movable between a first lever energy storage position and a first lever energy release position, wherein the trip push rod is respectively located in the push rod energy storage position and the push rod energy release position when the trip is in the trip energy storage state and the trip energy release state, respectively.

According to one embodiment, preferably, the energy storage drive member includes a drive member extension fixed relative to a body of the energy storage drive member, the energy storage transmission assembly is configured to actuate the first lever from the first lever energy release position to the first lever energy storage position upon actuation of the drive member extension to actuate the trip from the trip energy release state to the trip energy storage state, and the trip transmission assembly is configured to actuate the trip member from the trip stop position to the trip avoidance position upon actuation of the trip push rod to thereby allow the energy storage mechanism to transition from the mechanism energy storage state to the mechanism energy release state.

According to one embodiment, preferably, the trip push rod and the first lever are mounted on a side of the trip body, the mechanism stored energy position and the mechanism released energy position of the stored energy drive member defining a first direction, the trip being positioned adjacent to the stored energy mechanism, the trip defining a second direction different from the first direction from the stored energy mechanism to the trip, the drive member extension and the trip member each being a rod extending in the second direction, the stored energy drive assembly and the trip drive assembly being disposed proximate the side of the trip body. According to the switch of the embodiment, only the driving part extending part and the tripping part which are simpler in structure are required to be arranged on the energy storage mechanism, and the control effect of the switch of the utility model can be achieved.

According to one embodiment, the first lever is preferably configured to be rotatable about a rotational axis fixed relative to the trip body between a first lever energy storage position and a first lever energy release position, the energy storage transmission assembly including a fifth lever movable from a mechanism energy release position through a mechanism energy storage position and to a mechanism force storage position by the energy storage drive, the drive extension actuating rotation of the fifth lever from the fifth lever energy release position to the fifth lever energy storage position in a fifth lever energy storage rotational direction, whereby the fifth lever actuates rotation of the first lever from the first lever energy release position to the first lever energy storage position.

According to one embodiment, preferably, the energy storage transmission assembly includes a first torsion spring mounted to the fifth lever and configured to bias the fifth lever in a fifth lever energy release rotational direction opposite to the fifth lever energy storage rotational direction, and a first stopper fixedly disposed with respect to the housing, the first stopper configured to stop rotation of the fifth lever in the fifth lever energy release rotational direction to hold the fifth lever in a fifth lever energy release position.

According to one embodiment, preferably, the trip transmission assembly includes a second lever and a fourth lever, the second lever being rotatable between a second lever return position and a second lever release position to drive the fourth lever to rotate between a fourth lever return position and a fourth lever release position, respectively, wherein the trip pusher actuates the second lever to rotate from the second lever return position to the second lever release position in a second lever release rotational direction, the second lever actuates the fourth lever to rotate from the fourth lever return position to the fourth lever release position in a fourth lever release rotational direction, and the fourth lever actuates the trip member to move from the trip stop position to the trip avoidance position.

According to one embodiment, the trip transmission assembly preferably includes a second torsion spring mounted to the second lever, the second torsion spring configured to bias the second lever in a second lever return rotation direction opposite to the second lever release rotation direction, the trip pusher configured to stop rotation of the second lever in the second lever return rotation direction.

According to one embodiment, preferably, the trip transmission assembly further comprises a third lever, wherein the second lever drives the third lever to rotate between a third lever return position and a third lever release position, respectively, by rotation of the second lever between the second lever return position and the second lever release position, the switch further comprising a flap disposed adjacent to the third lever, the flap being configured to move between a manual operation position and an automatic operation position, wherein in the case of the third lever being in the third lever release position the third lever blocks the flap from moving from the automatic operation position to the manual operation position, and in the case of the third lever being in the third lever return position the third lever does not block the flap from moving between the manual operation position and the automatic operation position.

According to one embodiment, preferably, the second lever includes a second lever driven portion and a second lever driving portion spaced apart along a rotation axis of the second lever, the second lever driven portion and the second lever driving portion being fixedly connected by a second lever connecting portion, wherein the second lever is configured to rotate by actuation of the trip push rod via the second lever driven portion, the second lever driving portion including a first protrusion configured to drive the fourth lever and a second protrusion configured to drive the third lever, respectively.

According to one embodiment, the energy storing transmission assembly and the trip transmission assembly are preferably mounted on an integral bracket, which is fixed relative to the housing.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present utility model, the following description will briefly explain the drawings of the embodiments of the present utility model. Wherein the showings are for the purpose of illustrating some embodiments of the utility model only and not for the purpose of limiting the same.

Fig. 1A is a perspective view of a trip unit for a switch according to the present utility model, and fig. 1B and 1C are side views of the trip unit, showing a trip unit energy release state and a trip unit energy storage state, respectively.

Fig. 2A-2D show a portion of an energy storage mechanism according to the present utility model, showing the energy release state, the force storage state, the energy storage state and the energy release state of the energy storage mechanism, respectively.

Fig. 3A and 3B are perspective views of part of the components of a switch according to the utility model.

Fig. 4A and 4B illustrate perspective views of a trip unit and a trip unit drive assembly according to the present utility model.

Fig. 5A-5D illustrate components, respectively, of a trip unit transmission assembly according to the present utility model, a second lever, a fifth lever, a third lever, a fourth lever, respectively, and fig. 5E illustrates a bracket for mounting these components.

Fig. 6A and 6B illustrate cross-sectional views of different positions of a trip unit and a trip unit transmission assembly according to the present utility model, wherein the trip unit is in a de-energized state and the energy storage mechanism is in a de-energized state.

Fig. 6C and 6D illustrate cross-sectional views of different positions of a trip unit and a trip unit drive assembly according to the present utility model with the trip unit in an energy storage state and the energy storage mechanism in an energy storage state.

Fig. 6E and 6F show cross-sectional views of different positions of a trip unit and a trip unit drive assembly according to the present utility model, wherein the trip unit is in an energy storage state and the energy storage mechanism is in an energy storage state.

Fig. 7A and 7B illustrate cross-sectional views of different positions of a trip unit and a trip unit drive assembly according to the present utility model with the trip unit in an energy storage state and the energy storage mechanism in an energy storage state.

Fig. 7C and 7D illustrate cross-sectional views of different positions of a trip unit and a trip unit transmission assembly according to the present utility model with the trip unit in a de-energized state and the energy storage mechanism in a de-energized state.

Fig. 8A shows a perspective view of a mask according to the switch of the utility model, fig. 8B shows a side view and a top view of the mask when the flap is in the automatic operating position, and fig. 8C shows a side view and a top view of the mask when the flap is in the manual operating position.

Fig. 9A shows a partial top view of the switch interior components, and fig. 9B and 9C show partial side views of the switch interior components with the trip unit in a de-energized state and the energy storage mechanism in a de-energized state.

Fig. 10A shows a partial top view of the switch internal components, and fig. 10B and 10C show partial side views of the switch internal components with the trip unit in the stored energy state and the energy storage mechanism in the stored force state.

Fig. 11A shows a partial top view of the switch internal components, and fig. 11B and 11C show partial side views of the switch internal components with the trip unit in an energy storage state and the energy storage mechanism in an energy storage state.

Fig. 12A shows a partial top view of the switch interior components, and fig. 12B and 12C show partial side views of the switch interior components with the trip unit in a de-energized state and the energy storage mechanism in a de-energized state.

List of reference numerals

1. Switch

10. Shell body

20. Energy storage mechanism

205. Energy storage mechanism fixing frame

210. Energy storage driving piece

211. Main body of energy storage driving piece

212. Drive extension

220. Energy storage spring

230. Lock catch mechanism

231. Releasing fastener

2311. Stop position of release fastener

2312 Release fastener avoidance position

232. Rotating shaft of disengaging fastener

235. Waist-shaped track

30. Release device

310. Trip unit main body

311. Side of trip unit main body

320. Push rod of release

321. Hook of release push rod

330. First lever

331. Fixed rotating shaft of first lever

332. Rotating shaft between first lever and release push rod

333. Abutting plate of first lever

40. Trip transmission assembly

41. Energy storage transmission assembly

415. Fifth lever

4150 Fifth lever spindle hole

4152 Fifth lever driving part

4153 Fifth lever abutment

4154 Fifth lever driven part

4159 First torsion spring

411. First stop part

42. Trip transmission assembly

422. Second lever

A422 second lever axis of rotation

4221 Second lever driven part

4222 Second lever drive part

4223 Second lever connecting part

4224 First protrusion

4225 Second protrusion

4226 First protruding engagement shaft

4227 Second protrusion engagement shaft

4228 Second lever connecting shaft

4229 Second torsion spring

423 Third lever

4230 Third lever pivot hole

4231 Third lever driven part

4232 Third lever drive part

424 Fourth lever

4240 Fourth lever pivot hole

4241 Fourth Lever driven part

4242 Fourth Lever driving part

50. Support frame

501. A first plate part

502. A second plate portion

520. Rotating shaft for second lever

530. Rotating shaft for third lever

540. Rotating shaft for fourth lever

550. Rotating shaft for fifth lever

60. Baffle plate

61. Face mask

62. Toggle piece

63. Manual operation hole

D1 First direction

D2 Second direction

Detailed Description

In order to make the objects, technical solutions and advantages of the technical solutions of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of specific embodiments of the present utility model. Like reference numerals in the drawings denote like parts. It should be noted that the described embodiments are some, but not all embodiments of the present utility model. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present utility model fall within the protection scope of the present utility model.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. Likewise, the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to a direct connection, but may include an indirect connection. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

The utility model is described in detail below by way of description of example embodiments.

Fig. 1A to 1C show a release 30 of a switch according to the utility model, wherein fig. 1A shows a perspective view of the release 30, and fig. 1B and 1C show side views of the release 30, i.e. side surfaces 311 of a body 310 of the release 30. As shown in fig. 1A-1C, the trip 30 includes a trip bar 320 and a first lever 330 mounted on a side 311. The first lever 330 is rotatable at one end thereof with respect to the trip body 310 about a fixed rotation shaft 331, and the first lever 330 is rotatably connected at the other end thereof to one end of the trip bar 320 through a shaft 332. On the other hand, the trip bar 320 is restricted to be movable in one direction on the side 311, for example, in the left-right direction in fig. 1B and 1C. For example, referring to fig. 1B and 1C, the trip bar 320 may be actuated by rotation of the first lever 330 about the fixed shaft 331 to move leftward from the position of fig. 1B (bar de-energized position) to the position of fig. 1C (bar stored energy position). Additionally, in accordance with an embodiment of the present utility model, trip bar 320 may be actuated by an associated mechanism within trip body 310 to move rightward from the position of fig. 1C (the bar stored energy position) to the position of fig. 1B (the bar released energy position).

It should be noted that the movement of the trip bar 320 to the bar energy storage position (fig. 1C) actuated by the first lever 330 will store energy for the trip 30, and thus the condition of the trip bar 320 in the bar energy storage position may correspond to a trip energy storage state. On the other hand, the trip 30 of the switch according to the present utility model may perform the trip 30 itself energy releasing action according to the internal signal or the external signal, in which the related mechanism inside the trip body 310 actuates the trip pusher 320 to move rightward to reach the pusher energy releasing position (fig. 1B), so that the condition that the trip pusher 320 is located at the pusher energy releasing position may correspond to the trip energy releasing state. In general, release 30 may perform a release action faster than the action of storing energy to release 30.

Meanwhile, according to fig. 1A to 1C, since the first lever 330 is rotatably connected with the trip bar 320, the position of the first lever 330 corresponds to the position of the trip bar 320. For example, when the trip bar 320 is in the bar release position, the position of the first lever 330 is referred to as a first lever release position (fig. 1B), and when the trip bar 320 is in the bar store position, the position of the first lever 330 is referred to as a first lever store position (fig. 1C).

A switch according to the present utility model may use a variety of trip units 30 having a similar configuration as previously described, such as under voltage trip units, which perform a trip to trip the energy storage mechanism to open the gate, for example, when the control loop is de-energized or the voltage is less than a first particular value, and to resume energized actuation when the control loop voltage returns to a second particular value that is higher than the first particular value. The trip 30 may also be a shunt trip that takes a signal given by the condition of the control loop to perform a trip to trip the energy storage mechanism, e.g., the trip receives a trigger signal to perform a trip. The utility model is not intended to limit the specific mechanisms by which the trip 30 operates, so long as the trip has the external components described above that participate in the energy storage and release of the trip.

Fig. 2A to 2D show partial top views of the energy storage mechanism 20 of the switch 1 according to the utility model. The energy storage mechanism 20 includes an energy storage component 220, such as an energy storage spring 220, configured to store energy for the trip action of the switch 1. The energy storage mechanism 20 also includes an energy storage drive 210 configured to move relative to the housing 10 between a mechanism energy release position (fig. 2A, 2D) and a mechanism power storage position (fig. 2B) to compress or release the energy storage spring 220. The stored energy drive 210 further comprises a drive extension 212 fixed relative to the body 221 of the stored energy drive 210, the drive extension 212 being e.g. a rod (see fig. 3A and 3B).

The energy storage mechanism 20 further includes a latch mechanism 230, the latch mechanism 230 being configured to switch between a state in which the energy storage drive member 210 is restricted from moving and a state in which the energy storage drive member 210 is not restricted from moving. The latch mechanism 230 includes a trip 231, the trip 231 being mounted to the housing 10 (e.g., via a trip shaft 232, see fig. 3A and 3B) and movable between a trip clear position and a trip stop position (e.g., rotation of the trip shaft 232 moves the trip 231). The lumbar rail 235 on the housing 10 (not shown) is shown in phantom in fig. 2A-2D, with the trip 231 configured to be limited by the lumbar rail 235 to move only between the trip clear position 2312 and the trip stop position 2311. A third torsion spring (not shown) is provided on the trip shaft 232 and is configured to rotationally bias the trip shaft 232 clockwise in fig. 2A-2D (as indicated by the curved arrow), i.e., bias the trip 231 toward the trip stop 2311.

When the release member 231 is located at the release member avoiding position 2312, the latch mechanism 230 allows the energy storage driving member 210 to move between the mechanism energy releasing position and the mechanism energy storing position, and when the release member 231 is located at the release member stopping position 2311, the latch mechanism 230 prevents the energy storage driving member 210 from moving from the mechanism energy storing position to the mechanism energy releasing position. The present utility model is not intended to limit the specific actuation relationship of the disengagement member 231 with other components of the latch mechanism 230 and the energy storage driving member 210, but only to conform to the overall actuation relationship.

Next, referring to fig. 2A to 2D, the respective states of the energy stocking mechanism 20, which correspond to different positions of the energy stocking driving member 210, will be briefly described. Fig. 2A to 2D can be regarded as a change of the energy storage mechanism 20 from the energy release state to the energy storage state and then to the energy release state.

In fig. 2A, the energy storage driving member 210 is in the mechanism energy release position, at this time, the energy storage spring 220 is in the released state, and the energy storage mechanism 20 is correspondingly in the mechanism energy release state, so that the switch 1 is in the energy release state, and the release member 231 is in the release member stop position 2311 in fig. 2A.

In fig. 2B, the stored energy driving member 210 is in the mechanism power storage position, at which time the stored energy driving member 210 pushes and compresses the stored energy spring 220 to the highest point, and the stored energy mechanism 20 is correspondingly in the mechanism power storage state. In the process from fig. 2A to fig. 2B, the trip 231 is driven by other components of the latch mechanism 230 to leave the trip stop position 2311, and the movement of the energy storage driving member 210 also indirectly actuates the trip pusher 320 of the trip 30, thereby changing the trip 30 from the trip energy release state to the trip energy storage state, as described in detail below.

In fig. 2C, the energy storage driving member 210 is in the mechanism energy storage position, at which the energy storage driving member 210 is retracted a short distance relative to the highest point but not returned to the mechanism energy release position (the retraction is caused by the set nature of the energy storage mechanism 20, the mechanism of which is not specifically described in the present application), the energy storage mechanism 20 is correspondingly in the mechanism energy storage state, and the trip member 231 is driven by other components of the latch mechanism 230 to return to the trip member stop position 2311 in fig. 2C.

In fig. 2D, the energy storage driving member 210 is in the mechanism energy release position, the energy storage driving member 210 releases the energy storage spring 220, and the energy storage mechanism 20 is correspondingly in the mechanism energy release state, so that the switch 1 is in the energy release state. In the process of fig. 2C-2D, the trip 231 is actuated by the trip 30 to move first to the trip clear position 2312 such that the latch mechanism 230 does not block movement of the energy storage drive member 210, so that the energy storage drive member 210 can move past the latch mechanism 230 to the mechanism release position, and a third torsion spring (not shown) on the trip 231 moves the trip 231 back to the trip stop position 2311 after the energy storage drive member 210 passes the latch mechanism 230, as shown in fig. 2D, for example, by rotation of the trip shaft 232.

It should be noted that, as described above, according to embodiments of the present utility model, a change in the energy storage mechanism 20 from the mechanism-released state to the mechanism-stored state drives the release 30 to change from the release-released state to the release-stored state, while the release 30 receives an external or internal signal to itself change from the release-stored state to the release-released state, which change drives the change in the energy storage mechanism 20 from the mechanism-stored state to the mechanism-released state, thereby enabling the overall function of the switch to be enhanced with different release functions of multiple releases. And trip gear assembly 40 according to the present utility model embodies such a process.

Fig. 3A and 3B show parts of a switch 1 according to the utility model, including a trip unit 30, an energy storage mechanism 20 and a trip unit transmission assembly 40. The switch 1 further includes a housing 10 (not shown in fig. 2A and 2B), and a housing portion of the housing 10 may substantially enclose the trip unit 30, the energy storage mechanism 20, and the trip unit drive assembly 40, and these components may be mounted within the housing portion of the housing 10. For clarity, intermediate members for mounting these components to the housing 10 are also not shown.

As shown in particular in fig. 3A and 3B, trip unit 30 is disposed generally along second direction D2 relative to energy storage mechanism 20. Fig. 3A and 3B also specifically illustrate the drive member extension 212 fixed relative to the body 211 of the stored energy drive member, and the trip member 231 of the latch mechanism 230. Both the driving member extension 212 and the trip member 231 are bars extending in the second direction D2.

Fig. 3A and 3B also illustrate an energy storage drive assembly 41 and a trip drive assembly 42 included with trip unit drive assembly 40. As particularly shown in fig. 3A and 3B, the energy storage transmission assembly 41 is capable of interfacing with the drive extension 212 and with the first lever 330 of the trip 30, and in addition, the trip transmission assembly 42 is capable of interfacing with the trip 231 and with the trip bar 320 of the trip 30. Thus, as will be explained in detail below, the energy storage drive assembly 41 is configured to be actuated by the actuation of the driver extension 212 to actuate the movement of the first lever 330 from the first lever de-energized position to the first lever energy storage position, and the trip drive assembly 42 is configured to be actuated by the actuation of the trip bar 320 to actuate the movement of the trip 231 from the trip stop position to the trip clear position.

Next, referring to fig. 4A, 4B and fig. 5A-5E, a trip gear assembly 40 according to the present utility model is described. As again shown in fig. 4A and 4B, the trip transmission assembly 40 includes an energy storage transmission assembly 41 and a trip transmission assembly 42, fig. 4A shows a bracket 50 to which the energy storage transmission assembly 41 and the trip transmission assembly 42 are mounted, and fig. 4B does not show the bracket 50. The bracket 50 may be formed as a single piece, i.e., as one piece, to facilitate assembly and enhance the strength of the overall trip transmission assembly 40.

Specifically, the energy storage transmission assembly 41 includes a fifth lever 415, and the trip transmission assembly 42 includes a second lever 422, a third lever 423, and a fourth lever 424. Fig. 5A to 5D show the second lever 422, the fifth lever 415, the third lever 423, and the fourth lever 424, respectively. In addition, fig. 5E shows an integrated bracket 50.

Referring also to fig. 4A and 4B, the stored energy transmission assembly 41 is further described. The energy storing transmission assembly 41 comprises a fifth lever 415, the fifth lever 415 being rotatably mounted on the bracket 50, in particular on the first plate portion 501 of the bracket 50. For example, the fifth lever 415 includes a fifth lever rotation shaft hole 4150 so as to be sleeved on the rotation shaft 550 of the bracket 50. The stored energy transmission assembly 41 further includes a first torsion spring 4159 mounted on the fifth lever 415. The first torsion spring 4159 is configured to bias the fifth lever 415 rotationally in the fifth lever de-energizing direction (i.e., generally clockwise in fig. 4B). The energy storing transmission assembly 41 further includes a first stop 411 disposed on the bracket 50, the first stop 411 being thereby fixed relative to the housing 10 and capable of abutting against a fifth lever abutment 4153 of the fifth lever 415, thereby preventing further rotation of the fifth lever 415 in a fifth lever energy releasing direction. The fifth lever 415 further includes a fifth lever driven portion 4154, wherein the fifth lever driven portion 4154 is configured to be pushed by the driver extension 212 to rotate the fifth lever 415 in a fifth lever stored energy direction (i.e., generally counterclockwise in fig. 4B), wherein the fifth lever stored energy direction is opposite the fifth lever released energy direction.

Referring also to fig. 4A and 4B, the trip transmission assembly 42 is further described. The trip drive assembly 42 includes a second lever 422, a third lever 423, and a fourth lever 424.

As shown in fig. 4A, the second lever 422 is disposed between the first plate portion 501 and the second plate portion 502 of the bracket 50 that are parallel to each other. Wherein the second lever first rotation shaft hole 4261 and the second lever second rotation shaft hole 4262 of the second lever 422 are adjacent to the first rotation shaft hole 521 on the first plate portion 501 and the second rotation shaft hole 522 on the second plate portion 502, respectively, and the rotation shaft 520 for the second lever 422 passes through the rotation shaft holes 521, 4261, 4262, 522. Thus, the second lever 422 can be mounted on the bracket 50 and rotated about its rotation axis a 422. Of course, the second lever 422 may also be mounted to the bracket 50 by other structures and rotated about its rotational axis a 422.

As shown in fig. 5A, the second lever 422 includes a second lever driven portion 4221, a second lever driving portion 4222, and a second lever connecting portion 4223. The second lever driven portion 4221 and the second lever driving portion 4222 are arranged at a distance from each other with respect to the rotation axis a422, and are fixedly connected to each other by a second lever connecting portion 4223. The second lever driven portion 4221 is configured to be actuated by the hook 321 of the trip bar 320, so as to drive the second lever 422 to rotate about the rotation axis a422, and thus the second lever driving portion 4222 also rotates, so that the first protrusion 4224 and the second protrusion 4225 on the second lever driving portion 4222 protruding radially with respect to the rotation axis a422 move. The engagement shaft 4226 on the first protrusion 4224 is configured to be received in the driven portion 4241 of the fourth lever 424 formed as a recess, such that movement of the first protrusion 4224 drives rotation of the fourth lever 424. The engagement shaft 4227 on the second protrusion 4225 is configured to be received in the driven portion 4231 of the third lever 423 formed as a recess, such that movement of the second protrusion 4225 drives rotation of the third lever 423. Thus, in short, the second lever 422 can be driven by the trip bar 320 to rotate the fourth lever 424 and the third lever 423. For example, the trip bar 320 moves from the bar stored energy position to the bar released energy position (generally to the right in fig. 4B) such that the trip bar hook 321 drives the second lever 422 to move in the second lever released energy rotational direction (generally clockwise in fig. 4).

On the other hand, the trip transmission assembly 42 is provided with a second torsion spring 4229 on the second lever 422, and the second torsion spring 4229 may be provided at the second lever second rotation shaft hole 4262. The second torsion spring 4229 is configured to drive the second lever 422 to be rotationally biased in a second lever return rotation direction (generally counterclockwise in fig. 4B). Thus, when the second lever 422 does not abut against the trip bar 320, the second lever 422 is driven by the second torsion spring 4229 to rotate the fourth lever 424 and the third lever 423.

Fig. 5C specifically shows the third lever 423, and the third lever 423 is sleeved on the rotating shaft 530 of the bracket 50 with the third lever rotating shaft hole 4230 located thereon. Thereby, as described above, the third lever 423 is driven by the second lever 422 via the third lever driven portion 4231 thereof to rotate about the rotation shaft 530. The third lever 423 further includes a third lever driving portion 4232 to perform other functions. For example, according to an embodiment of the present utility model, the third lever driving part 4232 is used to block the movement of the blocking piece 60 (see fig. 9C) at a specific position, which will be described later.

Fig. 5D shows in detail the fourth lever 424, the fourth lever 424 being fitted over the rotation shaft 540 of the bracket 50 with the fourth lever rotation shaft hole 4240 located thereon. Thus, as described above, the fourth lever 424 is driven by the second lever 422 via the fourth lever driven portion 4241 thereof to rotate about the rotation shaft 540. The fourth lever 424 further includes a fourth lever driving portion 4242. According to an embodiment of the present utility model, the fourth lever drive 4242 is configured to move the trip 231 from the trip stop position to the trip clear position, as described in detail below.

Next, referring to fig. 6A-6F, the change in trip 30 and trip gear assembly 40 from the mechanism-powered state to the mechanism-powered state due to energy storage mechanism 20 is further described. Wherein fig. 6A, 6C, 6E are cross-sectional views taken generally at the side of the second plate portion 502 facing the first plate portion 501, and fig. 6B, 6D, and 6F are cross-sectional views taken generally through the body of the fifth lever 415.

In fig. 6A and 6B, the trip bar 320 is seen in the bar de-energized position, the first lever 330 is in the first lever de-energized position, the fifth lever 415 is in the fifth lever de-energized position, the second lever 422 is in the second lever de-energized position, and the third lever 423 and the fourth lever 424 are thus in respective de-energized positions. At this time, the fifth lever driving portion 4152 is spaced from the abutting plate 333 of the first lever, and the second lever driven portion 4221 is in contact with the hook 321 of the release push rod 320.

In the process from fig. 6A-6B to fig. 6C-6D, since the energy stocking mechanism 20 is first changed to the mechanism power stocking state, the not-shown driver extension 212 contacts and pushes the fifth lever driven portion 4154, thereby applying the pushing force F2 to the fifth lever driven portion 4154. Thus, the fifth lever 415 is rotated in the fifth lever stored energy rotational direction from the fifth lever energy release position to the fifth lever stored energy position. The fifth lever driving part 4152 contacts and pushes the first lever abutting plate 333 such that the first lever 330 rotates from the first lever energy releasing position to the first lever energy storing position, which in turn drives the trip bar 320 to move from the bar energy releasing position to the bar energy storing position, thereby displaying the state of fig. 6C-6D.

In the process of fig. 6C-6D to 6E-6F, the not shown driver extension 212 no longer contacts the fifth lever driven portion 4154 due to the self-nature of the energy storage mechanism 20 backing a distance, and the thrust force F2 is thus reversed. As the positions of the trip bar 320 and the first lever 330 have changed, the first torsion spring 4159 can rotate the fifth lever 415 back to the fifth lever de-energized position and abut the first stop 411, and the second torsion spring 4229 can rotate the second lever 422 to the second lever return position, thereby rotating the third lever 423 and the fourth lever 424 to their respective return positions. The various components are thereafter in the tripped device energy storage state shown in fig. 6E-6F.

Next, referring to fig. 7A-7D, the changes in the trip unit transmission assembly 40 that are created by the trip unit 30 as a result of performing the trip are further described.

First, prior to trip unit 30 performing its own trip, the various components of trip unit 30 and trip unit drive assembly 40 are positioned as in fig. 6E-6F, with trip unit 30 in the trip unit energy storage state and energy storage mechanism 20 in the mechanism energy storage state.

7A-7B-7C-7D, the body 310 of the trip unit 30 performs a trip (e.g., due to receipt of a trigger signal) to move the trip unit plunger 320 rightward from the plunger energy storage position to the plunger energy release position. In this process, the hook 321 of the trip bar 320 correspondingly pushes the second lever driven portion 4221, thereby rotating the second lever 422 from the second lever return position to the second lever release position, whereby the third lever 423 and the fourth lever 424 correspondingly rotate to the respective release positions. In the process, the drive portion 4242 of the fourth lever 424 will push the trip 231 (shown as force F3, additionally force F3 is shown in fig. 2C) such that the trip 231 moves from the trip stop position to the trip clear position.

In addition, in the process of fig. 7A-7B to 7C-7D, the fifth lever 415 is not rotated because the fifth lever driving portion 4152 is always spaced from the abutting plate 333 of the first lever 330. It should be noted that by returning the fifth lever 415 to the fifth lever de-energized position when the trip bar 320 reaches the bar energy storage position using the first torsion spring 4159, the fifth lever 415 does not obstruct movement of the trip bar 320 when the trip 30 performs its own trip (and corresponding energy storage mechanism 20 de-energized trip), and therefore does not obstruct rotation of the second lever 422 and subsequent rotation of the fourth lever 424 actuated by the trip bar 320, and thus does not obstruct actuation of the trip member 231 by the fourth lever 424.

Fig. 8A-8C illustrate a face mask 61 disposed over the trip unit 30 (e.g., as viewed from the perspective of fig. 3A and 3B). The mask 61 may be part of the housing 10. As shown in fig. 8A, the mask 61 may include a blocking piece 60, a toggle 62, and a manual operation hole 63. Wherein the toggle 62 is configured to be toggled by an operator or the like to toggle the switch between the automatic mode and the manual mode. Wherein the toggle member 62 is fixedly connected with the blocking piece 60.

Fig. 8B shows a side view and a top view of the mask 61 in an automatic mode, in which the blocking piece 60 is in a position closer to the edge of the mask 61 with the toggle piece 62 (i.e., the blocking piece 60 is in an automatic operation position), and the manual operation hole 63 is closed, so that manual operation cannot be performed. Fig. 8C shows a side view and a top view of the mask 61 in a manual mode, wherein the flap 60 is in a position further away from the edge of the mask 61 with the toggle 62 (i.e., the flap 60 is in a manual operation position), and the manual operation hole 63 is opened, so that manual operation can be performed through the manual operation hole 63.

Fig. 9A-9C through fig. 12A-12C illustrate further components in the switch. Next, the positions of the drive extension 212, trip member 231, and the aforementioned blocking tab 60 in different states and their interactions with the components of the trip gear assembly 40 will be further described with reference to fig. 9A-9C through fig. 12A-12C. Fig. 9A, 10A, 11A, 12A are top views of the switch-related components in the corresponding states, fig. 9B, 10B, 11B, 12B are side views of the switch-related components in the corresponding states, and focus on the driving member extension 212 and the trip member 231, and fig. 9C, 10C, 11C, 12C are side views of the switch-related components in the corresponding states, and focus on the blocking piece 60. In addition, the intermediate plate 110 of the housing 10 is shown in plan view in fig. 9A, 10A, 11A, 12A, and the intermediate plate 110 is provided with the aforementioned waist rail 235 for restricting the movement of the release catch 231 and a through hole for passing the release catch rotation shaft 232.

In fig. 9A-9C, release 30 is in a release energy state and energy storage mechanism 20 is in a mechanism energy release state. At this time, there is a large distance between the driving member extension 212 and the fifth lever driven portion 4154, and the disengagement member 231 is in contact with the fourth lever driving portion 4242. On the other hand, at this time, the shutter 60 is located at a position corresponding to the automatic mode (i.e., a position shifted to the right in fig. 9C), and the leftward movement of the shutter 60 toward the manual mode is prevented by the third lever driving portion 4232. Thus, the switch cannot be switched to the manual mode when the trip 30 is in the trip de-energized state.

In fig. 10A-10C, the energy storage mechanism 20 reaches the mechanism power state and the energy storage driver 210 reaches the highest point, such that the driver extension 212 contacts and pushes the fifth lever driven portion 4154 to rotate the fifth lever 415, thereby driving the first lever 330 and the trip bar 320 to move such that the trip 330 reaches the trip energy storage state. In fig. 10A-10C, the second lever 422 has brought the third lever 423 and the fourth lever 424 to their respective return positions, which is possible if the speed at which the driver extension 212 pushes the fifth lever 415 is slow, because the second torsion spring 4229 can push the second lever 422 against the hook 321 of the trip bar 320 in real time. Wherein, as the fourth lever 424 reaches the fourth lever return position, the fourth lever driving portion 4242 no longer contacts the trip member 231, and the trip member 231 moves to the trip member stop position due to the third torsion spring.

It should be noted that in fig. 10A to 10C, the third lever driving portion 4232 no longer prevents the leftward movement of the blocking piece 60 toward the manual mode due to the rotation of the third lever 423, and thus the switch can be brought into the manual mode by pushing the toggle piece 62. However, the mechanism power state is of relatively short duration, and in general, the switch is also capable of reaching the manual mode by pushing the toggle 62 in the subsequent mechanism power state.

In fig. 11A-11C, the stored energy mechanism 20 reaches a mechanism stored energy state, the driver extension 212 is retracted slightly and a distance exists between the fifth lever driven portion 4154, and the positions of the second lever 422, the third lever 423, and the fourth lever 424 are unchanged relative to the mechanism stored energy state. Thus, the switch is able to reach manual mode by pushing the toggle 62. In fig. 11A-11C, the trip 231 is still in the trip stop position.

In fig. 12A-12C, the trip 30 is changed to a trip release state, whereby the trip bar 320 reaches the bar release position and pushes the second, third, and fourth levers 422, 423, 424 to their respective release positions. The fourth lever driving portion 4242 pushes the release member 231 to the release member avoiding position, so that the energy storage driving member 210 can reach the mechanism releasing position, that is, the driving member extending portion 212 moves away from the fifth lever driven portion 4154, and the releasing spring 220 is released at this time.

The exemplary implementation of the switch according to the present utility model has been described in detail with reference to the preferred embodiments, however, it will be understood by those skilled in the art that many variations and modifications may be made to the specific embodiments described above without departing from the scope of the present utility model, and many combinations of various technical features and structures may be made without departing from the scope of the present utility model.

Claims (13)

1. A switch, comprising:

a housing (10);

An energy storage mechanism (20) capable of switching between a mechanism energy storage state and a mechanism energy release state;

A release (30) capable of switching between a release energy storage state and a release energy release state;

Trip transmission assembly (40), comprising:

An energy storage transmission assembly (41) configured to be actuated by the energy storage mechanism (20) to actuate the release (30) to switch from the release energy release state to the release energy storage state during a transition of the energy storage mechanism (20) from the mechanism energy release state to the mechanism energy storage state;

And a trip transmission assembly (42) configured to be actuated by the trip (30) during a transition of the trip (30) from a trip energy storage state to a trip energy release state to allow the energy storage mechanism (20) to transition from a mechanism energy storage state to a mechanism energy release state.

2. A switch as claimed in claim 1, wherein,

The energy storage mechanism (20) comprises an energy storage driving piece (210), the energy storage driving piece (210) can move relative to the shell (10), wherein when the energy storage mechanism (20) is respectively in a mechanism energy release state and a mechanism energy storage state, the energy storage driving piece (210) is respectively positioned in the mechanism energy release position and the mechanism energy storage position, and the energy storage transmission assembly (41) is configured to be actuated by the energy storage driving piece (210) to actuate the release (30) to be converted from the release energy release state to the release energy storage state.

3. A switch as claimed in claim 2, wherein,

The energy storage mechanism (20) further comprises a locking mechanism (230), the locking mechanism (230) comprises a trip (231), the trip (231) is mounted on the shell (10) and can move between a trip avoiding position and a trip stopping position, when the trip (231) is located at the trip avoiding position, the locking mechanism (230) allows the energy storage driving piece (210) to move between a mechanism energy releasing position and a mechanism energy storing position, and when the trip (231) is located at the trip stopping position, the locking mechanism (230) prevents the energy storage driving piece (210) from moving from the mechanism energy storing position to the mechanism energy releasing position.

4. A switch according to claim 3, wherein,

The release (30) comprises a release main body (310), and a release push rod (320) and a first lever (330) which are arranged on the release main body (310), wherein the release push rod (320) and the first lever (330) are connected with each other, the release push rod (320) can move between a push rod energy storage position and a push rod energy release position, and the first lever (330) can correspondingly move between the first lever energy storage position and the first lever energy release position, wherein when the release (30) is respectively in a release energy storage state and a release energy release state, the release push rod (320) is respectively positioned in the push rod energy storage position and the push rod energy release position.

5. The switch of claim 4, wherein the switch comprises a switch,

The energy storing drive (210) comprises a drive extension (212) fixed relative to a body (211) of the energy storing drive,

The energy storage transmission assembly (41) is configured to actuate the first lever (330) from a first lever energy release position to a first lever energy storage position upon actuation of the drive extension (212) to actuate the trip (30) to transition from a trip energy release state to a trip energy storage state,

The trip transmission assembly (42) is configured to actuate movement of the trip member (231) from a trip member blocking position to a trip member clearing position upon actuation of the trip pusher (320) to thereby permit the energy storage mechanism (20) to transition from a mechanism energy storage state to a mechanism energy release state.

6. The switch of claim 5, wherein the switch comprises a switch,

The trip bar (320) and the first lever (330) are mounted on a side (311) of the trip body (310),

The mechanism energy storage position and the mechanism energy release position of the energy storage drive (210) defining a first direction (D1), the release (30) being positioned adjacent to the energy storage mechanism (20), a second direction (D2) different from the first direction (D1) being defined from the energy storage mechanism (20) to the release (30),

The drive member extension (212) and the trip member (231) are rods extending in a second direction (D2), and the energy storage transmission assembly (41) and the trip transmission assembly (42) are arranged close to the side (311) of the trip unit body.

7. The switch of claim 5, wherein the switch comprises a switch,

The first lever (330) is configured to rotate about a rotational axis (331) fixed relative to the trip unit body (310) between a first lever stored energy position and a first lever released energy position,

The energy storing transmission assembly (41) includes a fifth lever (415) that is moved from a mechanism-de-energized position through a mechanism-de-energized position and to a mechanism-de-energized position by the energy storing driver (210), the driver extension (212) actuating rotation of the fifth lever (415) from the fifth lever-de-energized position to the fifth lever-energized position in a fifth lever-de-energized rotational direction such that the fifth lever (415) actuates rotation of the first lever (330) from the first lever-de-energized position to the first lever-energized position.

8. The switch of claim 7, wherein the switch is configured to,

The energy storage transmission assembly (41) comprises a first torsion spring (4159) mounted on the fifth lever (415) and a first stopping part (411) fixedly arranged relative to the shell, wherein the first torsion spring (4159) is configured to bias the fifth lever (415) along a fifth lever energy release rotation direction opposite to the fifth lever energy storage rotation direction, and the first stopping part (411) is configured to stop rotation of the fifth lever (415) along the fifth lever energy release rotation direction so as to keep the fifth lever (415) at a fifth lever energy release position.

9. The switch of claim 5, wherein the switch comprises a switch,

The trip transmission assembly (42) includes a second lever (422) and a fourth lever (424),

The second lever (422) is rotatable between a second lever return position and a second lever de-energized position, thereby driving the fourth lever (424) to rotate between a fourth lever return position and a fourth lever de-energized position, respectively,

Wherein, through release push rod (320) is moved from push rod energy storage position to push rod release position, release push rod (320) actuation second lever (422) is followed second lever and is released energy rotation direction to second lever and release energy position from the second lever return position, thereby second lever (422) actuation fourth lever (424) is followed fourth lever and is released energy rotation direction to fourth lever and release energy position from fourth lever return position, and then fourth lever (424) actuation release piece (231) is moved to release piece dodge position from release piece backstop position.

10. The switch of claim 9, wherein the switch is configured to control the switching of the switch,

The trip transmission assembly (42) includes a second torsion spring (4229) mounted to the second lever (422), the second torsion spring (4229) configured to bias the second lever (422) in a second lever return rotation direction opposite the second lever release rotation direction, the trip bar (320) configured to stop rotation of the second lever (422) in the second lever return rotation direction.

11. The switch of claim 10, wherein the switch comprises a switch,

The trip transmission assembly (42) further includes a third lever (423), wherein, by rotation of the second lever (422) between a second lever return position and a second lever release position, the second lever (422) drives rotation of the third lever (423) between a third lever return position and a third lever release position, respectively,

The switch (1) further comprises a flap (60) arranged near the third lever (423), the flap (60) being configured to move between a manual operating position and an automatic operating position, wherein the third lever (423) blocks the flap (60) from moving from the automatic operating position to the manual operating position in case the third lever (423) is in a third lever de-energized position, and wherein the third lever (423) does not block the flap (60) from moving between the manual operating position and the automatic operating position in case the third lever (423) is in a third lever return position.

12. The switch of claim 11, wherein the switch comprises a switch,

The second lever (422) comprises a second lever driven part (4221) and a second lever driving part (4222) spaced apart along a rotation axis (a 422) of the second lever, the second lever driven part (4221) and the second lever driving part (4222) being fixedly connected by a second lever connecting part (4223), wherein the second lever (422) is configured to rotate via actuation of the second lever driven part (4221) by the trip push rod (320), the second lever driving part (4222) comprises a first protrusion (4224) configured to drive the fourth lever (424) and a second protrusion (4225) configured to drive the third lever (423), respectively.

13. The switch according to any one of claims 1 to 12, characterized in that,

The energy storage transmission assembly (41) and the tripping transmission assembly (42) are mounted on an integral bracket (50), and the bracket (50) is fixed relative to the housing (10).