Switch cabinet

Abstract

A switchgear cabinet comprising a switching device housed within a frame of the switchgear cabinet and a modular interlocking system, the modular interlocking system comprising: a first interlocking mechanism switchable between a first locked state and a first unlocked state and configured to be operably connected with the switching device, the first interlocking mechanism being configured to actuate the first interlocking mechanism when the switching device is in a closed state, and the second interlocking mechanism being configured to actuate the first interlocking mechanism when the switching device is in a closed state; the first interlocking mechanism can be switched from a first locking state to a first unlocking state; the second interlocking mechanism is independently arranged relative to the first interlocking mechanism, can be switched between a second locking state and a second unlocking state and is operably connected with the cabinet door, in the second locking state of the second interlocking mechanism, the cabinet door cannot vertically move to the opening position, and in the second unlocking state of the second interlocking mechanism, the cabinet door cannot vertically move to the opening position. The cabinet door is vertically movable to an open position.

Description

Technical Field

[0001] The present application relates to a switch cabinet. Background Art

[0002] Circuit breakers and earthing switches are two types of switchgear used in medium-voltage switches. An interlocking device is installed between them and the cabinet door to prevent the door from being opened when energized, ensuring the safety of operators.

[0003] The interlocking mechanism of the existing upper isolation and lower circuit breaker solution generally adopts a wire rope structure to realize transmission, which has complex interlocking, unreliable operation, non-removable and difficult installation and maintenance. Utility Model Content

[0004] In order to overcome the above problems, the present application provides a switch cabinet, comprising a switch device and a modular interlocking system housed in a frame of the switch cabinet, wherein the modular interlocking system comprises:

[0005] a first interlock mechanism, capable of switching between a first locked state and a first unlocked state, and configured to be operably connected to the switching device, wherein when the switching device is in a closed state, the first interlock mechanism can switch from the first locked state to the first unlocked state, and when the switching device is in an open state, the first interlock mechanism cannot switch from the first locked state to the first unlocked state;

[0006] The second interlock mechanism is independently provided relative to the first interlock mechanism, can be switched between a second locked state and a second unlocked state, and is operably connected to the cabinet door, wherein in the second locked state of the second interlock mechanism, the cabinet door cannot be vertically moved to the open position, and in the second unlocked state of the second interlock mechanism, the cabinet door can be vertically moved to the open position.

[0007] In which, the second interlock mechanism is also configured to be operably connected to the first interlock mechanism. When the switching device is in the closed state, the first interlock mechanism switches from the first locked state to the first unlocked state, allowing the second interlock mechanism to switch from the second locked state to the second unlocked state, thereby allowing the cabinet door to move vertically to the open position.

[0008] Advantageously, the first interlocking mechanism includes a first interlocking slide, and the second interlocking mechanism includes a second interlocking slide, the first interlocking slide is fixedly mounted to the second interlocking slide, and the second interlocking slide is vertically slidably mounted to the frame of the switch cabinet, so that the first interlocking slide and the second interlocking slide can slide vertically together.

[0009] The first interlocking slide is configured to drive the second interlocking slide to slide vertically from their respective initial positions to their respective predetermined positions when the switching device is in the closed state, so that the first interlocking mechanism switches to the first unlocked state and the second interlocking mechanism switches to the second unlocked state; when the switching device is in the open state, it cannot drive the second interlocking slide to slide vertically to their respective predetermined positions, so that the first interlocking mechanism remains in the first locked state and the second interlocking mechanism remains in the second locked state.

[0010] Advantageously, the first interlocking mechanism further comprises:

[0011] An interlocking crank arm is pivotally disposed on a housing of the switch device between a first blocking position and a first avoidance position, and is operably connected to a status indicator disk of the switch device, so that when the switch device switches from an open state to a closed state, the status indicator disk of the switch device drives the interlocking crank arm from the first blocking position to the first avoidance position; and when the switch device switches from a closed state to an open state, the status indicator disk of the switch device drives the interlocking crank arm from the first avoidance position to the first blocking position;

[0012] The first interlocking plate is fixedly mounted to the first interlocking slide. When the interlocking crank arm is in the first blocking position, a portion of the interlocking crank arm abuts against the first interlocking plate, so that the interlocking crank arm blocks the first interlocking plate and further blocks the first interlocking slide from sliding vertically to a predetermined position. When the interlocking crank arm is in the first avoidance position, the interlocking crank arm will not block the first interlocking plate and further will not block the first interlocking slide from sliding vertically to the predetermined position.

[0013] Advantageously, the interlocking crank arm has a protrusion, and the status indication disc of the switching device has a groove, and the protrusion extends into the groove, so that during the switching of the switching device from the open state to the closed state, the first wall of the groove of the status indication disc of the switching device abuts the protrusion, thereby driving the interlocking crank arm from the first blocking position to the first avoidance position; during the switching of the switching device from the closed state to the open state, the second wall of the groove of the status indication disc of the switching device abuts the protrusion to drive the interlocking crank arm from the first avoidance position to the first blocking position.

[0014] Advantageously, the first interlock plate has a groove. When the switching device is in the open state, the interlocking arm is in the first blocking position. At this time, a part of the first interlock plate abuts against the protrusion of the interlocking arm. When the switching device is in the closed state, the interlocking arm is in the first avoidance position. At this time, the protrusion and the groove are aligned in the vertical direction, which will not block the first interlock plate and thus will not block the vertical sliding of the first interlocking slide. When the first interlocking slide slides vertically to a predetermined position so that the first interlocking mechanism switches to the first unlocked state, the protrusion abuts against the bottom of the groove, blocking the continued sliding of the first interlocking plate.

[0015] Advantageously, the second interlocking mechanism further comprises:

[0016] A lock tongue fixing plate, fixedly mounted to the frame of the switch cabinet, having a first guide groove for the second interlocking slide to pass through;

[0017] The lock tongue is pivotally arranged on the lock tongue fixing plate, wherein the lock tongue has a pin, which is suitable for inserting into a slot on the cabinet door,

[0018] wherein, in the open state of the switchgear, the second interlocking slide is prevented from sliding vertically, and the second interlocking slide abuts against a portion of the lock tongue to prevent the lock tongue from pivoting in a predetermined direction, thereby preventing the cabinet door from vertically moving toward the open position;

[0019] In which, in the closed state of the switching device, after the second interlock slide slides vertically to a predetermined position, the second interlock slide disengages from the abutment with that part of the lock tongue to allow the lock tongue to pivot in a predetermined direction, thereby allowing the cabinet door to move vertically toward the open position.

[0020] Advantageously, the second interlocking mechanism further comprises a supporting guide plate fixedly mounted to the frame of the switch cabinet and having a second guide groove for the second interlocking slide plate to pass through.

[0021] Advantageously, the system further comprises an additional switch device housed within the frame of the switch cabinet, and the modular interlocking system further comprises a third interlocking mechanism, which is independently provided relative to the first interlocking mechanism and the second interlocking mechanism, is capable of switching between a third locked state and a third unlocked state, and is provided outside the additional switch device and configured to be operably connected to the additional switch device of the switch cabinet.

[0022] In which, the third interlocking mechanism is also configured to be operably connected to the second interlocking mechanism, and only when the additional switching device and the switching device are both in the closed state, the first interlocking mechanism switches from the first locked state to the first unlocked state and the third interlocking mechanism switches from the third locked state to the third unlocked state, thereby allowing the second interlocking mechanism to switch from the second locked state to the second unlocked state.

[0023] Advantageously, the third interlocking mechanism comprises a third interlocking slide fixedly mounted to the first interlocking slide or the second interlocking slide.

[0024] Only when the additional switching device and the switching device are both in the closed state, the first interlocking slide, the second interlocking slide and the third interlocking slide can slide vertically relative to the cabinet door to their respective predetermined positions, so that the first interlocking mechanism switches from the first locked state to the first unlocked state, the third interlocking mechanism switches from the third locked state to the third unlocked state, and the second interlocking mechanism switches from the second locked state to the second unlocked state.

[0025] Advantageously, the third interlocking mechanism further comprises:

[0026] The second interlock plate is pivotally disposed on the housing of the additional switch device outside the additional switch device and is configured to be pivotable between a second blocking position and a second avoidance position, wherein a plane on which the second interlock plate pivots and a plane on which the main body of the third interlocking slide plate vertically slides form a predetermined angle with each other,

[0027] a rotating disk operatively connected to the operating mechanism of the additional switching device outside the additional switching device, so that when the additional switching device is in a closed state, the rotating disk is in a first position, and when the additional switching device is in an open state, the rotating disk is in a second position,

[0028] The rotating disk has a notch. When the additional switch device is in the closed state, the rotating disk is in the first position, the notch faces the second interlock plate, and the vertical sliding of the third interlocking slide toward the predetermined position abuts against the second interlocking plate, driving the second interlocking plate from the second blocking position toward the second avoidance position. A part of the second interlocking plate rotates into the notch of the rotating disk, so that the second interlocking plate can rotate to the second avoidance position, allowing the third interlocking slide to slide vertically to the predetermined position.

[0029] Among them, when the additional switching device is in the open state, the rotating disk is in the second position, the notch deviates from the second interlock plate, and the vertical sliding of the third interlocking slide toward the predetermined position will abut the second interlocking plate, driving the second interlocking plate from the second blocking position toward the second avoidance position. The second interlocking plate is blocked by the peripheral wall of the rotating disk and cannot rotate to the second avoidance position, thereby preventing the third interlocking slide from sliding vertically to its predetermined position.

[0030] Advantageously, the third interlocking slide plate has a plate extending vertically from the main body, the plate having a vertically extending channel, and the third interlocking slide plate further has a vacant portion located above the channel.

[0031] The additional switching device has a locking member pivotally mounted in a housing of the additional switching device, the locking member is associated with an actuating member of the additional switching device, and a vertical plate of the locking member extends to the outside of the housing of the additional switching device,

[0032] In the initial position of the third interlocking slide, the vertical plate is located in the vacant portion, and the locking member can pivot unimpeded; in the predetermined position of the third interlocking slide, the vertical plate is located in the channel, and the locking member is blocked and cannot pivot.

[0033] Among them, in the initial position of the third interlocking slide, the actuator can be actuated to pivot in the opening direction, thereby abutting against the locking member, so that the locking member can pivot in the direction opposite to the opening direction, thereby allowing the additional switching device to switch from the closed state to the open state.

[0034] Among them, after the third interlocking slide slides vertically to a predetermined position, the vertical plate of the locking member is located in the channel of the third interlocking slide. When the additional switching device switches from the closed state to the open state, the actuator is blocked by the locking member and cannot pivot in the open direction, so that the additional switching device cannot switch from the closed state to the open state.

[0035] Advantageously, the switching device is a grounding switch.

[0036] Advantageously, the additional switching device is a circuit breaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The above and other features and advantages of exemplary embodiments of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, which are intended for illustrative purposes only and are not intended to limit the scope of the present invention in any way, wherein:

[0038] Figure 1 A schematic diagram of a switch cabinet according to the present application is shown, wherein for the sake of clarity, only the cabinet door, the earthing switch, the circuit breaker and the modular interlocking system are shown.

[0039] Figure 2 A schematic diagram of a switch cabinet according to the present application is shown, wherein only the cabinet door and the modular interlocking system are shown for the sake of clarity.

[0040] Figure 3 Another schematic diagram of a switch cabinet according to the present application is shown. For the sake of clarity, only the cabinet door and the modular interlocking system are shown.

[0041] Figure 4 A perspective view is shown of a first interlocking mechanism for an earthing switch of the modular interlocking system according to the present application. At this time, the earthing switch is in an open state.

[0042] Figure 5 Show the basis Figure 4 Another perspective view of the device, with the status indicator disc hidden.

[0043] Figure 6 A perspective view is shown of a first interlocking mechanism for an earthing switch of the modular interlocking system according to the present application, wherein the earthing switch is in a closed state.

[0044] Figure 7 Show the basis Figure 6 Another perspective view of the device, with the status indicator disc hidden.

[0045] Figure 8 A perspective view is shown of a third interlocking mechanism for a circuit breaker of the modular interlocking system according to the present application, wherein the circuit breaker is in an open state.

[0046] Figure 9 Show the basis Figure 8 Another perspective view of .

[0047] Figure 10 A perspective view is shown of a third interlocking mechanism for a circuit breaker of the modular interlocking system according to the present application, wherein the circuit breaker is in a closed state.

[0048] Figure 11 Show the basis Figure 10 Another perspective view of .

[0049] Figure 12 A perspective view showing a second interlocking mechanism of the modular interlocking system according to the present application.

[0050] Figure 13a and Figure 13b Show respectively according to Figure 12 The cabinet door cannot be opened at this time.

[0051] Figure 14a and Figure 14b Show respectively according to Figure 12 Front and rear views of the cabinet with the door open.

[0052] Figure 15 Shows the movement plane of the third interlocking slide and the second interlocking plate in the third interlocking mechanism.

[0053] Figure 16 Schematic diagram showing that the third interlocking mechanism is arranged outside the additional switching device. DETAILED DESCRIPTION

[0054] In order to make the purpose, technical solution and advantages of the technical solution of the present disclosure clearer, the technical solution of the embodiment of the present disclosure will be clearly and completely described below in conjunction with the drawings of the specific embodiments of the present disclosure. The same figure marks in the drawings represent the same parts. It should be noted that the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0055] Compared to the embodiments shown in the drawings, feasible embodiments within the scope of protection of the present disclosure may have fewer components, additional components not shown in the drawings, different components, differently arranged components, or differently connected components, etc. In addition, two or more components in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.

[0056] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by persons of ordinary skill in the field to which the present disclosure belongs. The words "first", "second" and similar terms used in the patent application specification and claims of the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. When the number of components is not specified, the number of components may be one or more; similarly, words such as "one", "the", and "said" do not necessarily indicate a quantity limitation. Words such as "include" or "comprising" mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, but do not exclude other elements or objects. "Up", "down", "left", "right", etc. are only used to indicate the relative orientation relationship when the device is in use or the orientation relationship shown in the drawings. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0057] Figure 1 A schematic diagram of a switchgear according to the present application is shown. The switchgear includes a door 4 that can be moved upward to open. The switchgear also includes a switchgear 6 and an additional switchgear 5 disposed within the switchgear. In this example, the switchgear 6 is a grounding switch, and the additional switchgear 5 is a circuit breaker. The switchgear's modular interlocking system is associated with the switchgear 6, the additional switchgear 5 (if present), and the door 4, respectively. The modular interlocking system includes a first interlocking mechanism 1 for the switchgear 6, a third interlocking mechanism 2 for the additional switchgear, and a second interlocking mechanism 3 for the door.

[0058] In particular, in a switchgear cabinet, a circuit breaker is optional. That is, it can be installed or not. If a circuit breaker is installed, a third interlock mechanism is present; if a circuit breaker is not installed, a third interlock mechanism is not present.

[0059] In the following description, for the sake of detailed description, the description is made under the condition that a circuit breaker, ie, a third interlocking mechanism, is present. However, those skilled in the art will appreciate that the circuit breaker, ie, the third interlocking mechanism, may not be provided.

[0060] The first interlocking mechanism 1 , the second interlocking mechanism 3 and the third interlocking mechanism 2 are independently provided and can be detachably connected together, so that the third interlocking mechanism 2 can be easily removed.

[0061] like Figure 2 and 3As shown, the first interlocking mechanism 1 includes a first interlocking slide 13, the second interlocking mechanism 3 includes a second interlocking slide 31, and the third interlocking mechanism 2 includes a third interlocking slide 21. The second interlocking slide 31 is vertically movably mounted on the frame of the switchgear. The first interlocking slide 13 is connected to the second interlocking slide 31 at a fixed point 311, and the third interlocking slide 21 is connected to the second interlocking slide 31 at a fixed point 312. In this way, the first interlocking slide 13, the second interlocking slide 31, and the third interlocking slide 21 can move vertically together from their respective initial positions to their respective predetermined positions.

[0062] The first interlocking mechanism 1 is capable of switching between a first locked state and a first unlocked state and is configured to be operably connected to the switching device. When the switching device is in the closed state, the first interlocking mechanism is capable of switching from the first locked state to the first unlocked state. When the switching device is in the open state, the first interlocking mechanism cannot switch from the first locked state to the first unlocked state. The "first locked state" of the first interlocking mechanism 1 means that the first interlocking slide 13 of the first interlocking mechanism 1 cannot move vertically to its predetermined position, and the "first unlocked state" means that the first interlocking slide 13 of the first interlocking mechanism 1 can move vertically to its predetermined position.

[0063] The second interlocking mechanism is switchable between a second locked state and a second unlocked state and is operably connected to the first interlocking mechanism. In the second locked state of the second interlocking mechanism, the cabinet door cannot be vertically moved to the open position, and in the second unlocked state of the second interlocking mechanism, the cabinet door can be vertically moved to the open position. The "second locked state" of the second interlocking mechanism 3 means that the second interlocking slide 31 of the second interlocking mechanism 3 cannot be vertically moved to its predetermined position, and the "second unlocked state" means that the second interlocking slide 31 of the second interlocking mechanism 3 can be vertically moved to its predetermined position.

[0064] The second interlock mechanism's state switching is linked to the first interlock mechanism's state switching, meaning that the first interlock mechanism's state switching causes the second interlock mechanism's state switching. When the switchgear is in the closed state, in response to the first interlock mechanism switching from the first locked state to the first unlocked state (i.e., the first interlock slide 13 vertically moves from its initial position to its predetermined position), the second interlock mechanism is permitted to switch from the second locked state to the second unlocked state (i.e., the second interlock slide 31 vertically moves from its initial position to its predetermined position), thereby allowing the cabinet door to move vertically to the open position.

[0065] If a third interlock mechanism 2 is present, its state transition is linked to the state transition of the first interlock mechanism. The third interlock mechanism 2 is switchable between a third locked state and a third unlocked state. It is detachably and operably connected to the second interlock mechanism, located externally of the additional switchgear, and configured to be operably connected to the additional switchgear of the switchgear. The second interlock mechanism switches from the second locked state to the second unlocked state only when both the additional switchgear and the switchgear are in the closed state, in response to the first interlock mechanism switching from the first locked state to the first unlocked state and the third interlock mechanism switching from the third locked state to the third unlocked state.

[0066] That is to say, when the modular interlocking system only includes the first interlocking mechanism 1 and the second interlocking mechanism 3, the first interlocking mechanism 1 is allowed to switch to the first unlocked state only when the switching device is in the closed state, and then the second interlocking mechanism 3 is switched to the second unlocked state, allowing the cabinet door to move vertically to the open position.

[0067] In the case where the modular interlocking system includes a first interlocking mechanism 1, a third interlocking mechanism 2 and a second interlocking mechanism 3, only when the switching device and the additional switching device are both in the closed state, the first interlocking mechanism 1 is allowed to switch to the first unlocked state, the third interlocking mechanism 2 is switched to the third unlocked state, and then the second interlocking mechanism 3 is switched to the second unlocked state, allowing the cabinet door to move vertically to the open position.

[0068] The first interlocking mechanism 1 further includes an interlocking crank arm 11 and a first interlocking plate 12, wherein the first interlocking plate 12 is fixedly connected to a first interlocking slide 13. The interlocking crank arm 11 is pivotally disposed on the housing of the switch device between a first blocking position and a first avoidance position outside the switch device, and is operably connected to the status indicator disc 61 of the switch device 6, so that when the switch device switches from the open state to the closed state, the status indicator disc 61 of the switch device drives the interlocking crank arm 11 from the first blocking position to the first avoidance position; when the switch device switches from the closed state to the open state, the status indicator disc 61 of the switch device drives the interlocking crank arm from the first avoidance position to the first blocking position.

[0069] When the interlocking crank arm 11 is in the first blocking position, a part of the interlocking crank arm 11 abuts against the first interlocking plate 12, so that the interlocking buckle arm 11 blocks the first interlocking slide 12 from sliding vertically to the predetermined position. When the interlocking crank arm 11 is in the first avoidance position, the interlocking crank arm 11 will not block the first interlocking slide 12 from sliding vertically to the predetermined position.

[0070] Combine Figure 4 、 Figure 5 、 Figure 6 and Figure 7 , Figure 4 and Figure 5 is a schematic diagram of the switch device 6 in the open state, Figure 6 and Figure 7 Schematic diagram of the switch device 6 in the closed state.

[0071] The state indicating disc 61 of the switch device 6 can rotate with the closing state and the opening state of the switch device 6. This is well known to those skilled in the art and is not the focus of the present application. Therefore, this article does not focus on how the opening state and the closing state of the switch device 6 cause the state indicating disc 61 to rotate. It is only necessary to understand that when the switch device 6 is in the opening state, the state indicating disc 61 is in the closing state. Figure 4 and Figure 5 In the position shown, when the switch device 6 is in the closed state, the status indicator disc 61 is in Figure 6 and Figure 7 Position shown.

[0072] The status indication disc 61 of the switching device 6 has a groove 611, and the interlocking crank arm 11 is pivotally arranged on the housing of the switching device via the rotation center 111. The interlocking crank arm also has a protrusion 112, which extends into the groove 611 of the disc 61, so that when the switching device is switched from the open state to the closed state, the first wall of the groove 611 of the status indication disc of the switching device abuts the protrusion, thereby driving the interlocking crank arm from the first blocking position to the first avoidance position; when the switching device is switched from the closed state to the open state, the second wall of the groove of the status indication disc of the switching device abuts the protrusion, driving the interlocking crank arm from the first avoidance position to the first blocking position.

[0073] like Figure 4 and Figure 5 As shown, at this time, the switch device 6 is in the open state, the interlocking arm 11 is in the first blocking position, and the protrusion 112 of the interlocking arm 11 abuts against a part of the first interlocking plate 12 (i.e., the protrusion 122), so that the first interlocking slide 13 cannot move vertically upward with the first interlocking plate 12.

[0074] When the switch device 6 switches from the open state to the closed state, the second wall of the state indicator disc drives the interlocking crank arm 11 to the first avoidance position. At this time, the protrusion 112 of the interlocking crank arm 11 moves into the groove 121 of the first interlocking plate 12 and is spaced apart from the bottom of the groove 121. As a result, the first interlocking slide 13 can move vertically upward with the first interlocking plate 12 to a predetermined position, such as Figure 6 and 7 As shown, the protrusion 112 abuts against the bottom of the groove 121 , thereby limiting the first interlocking plate 12 (and the first interlocking slide plate 13 ).

[0075] The third interlocking mechanism 2 further comprises a second interlocking plate 22, which is pivotally arranged on the housing of the additional switch device and is located outside the additional switch device. Figure 16 As shown. The rotation center 221 of the second interlock plate 22 is set outside the additional switch device. The second interlock mechanism can be installed without disassembling the additional switch device, which is convenient for customers to perform interlock modification of the additional switch device on site. The second interlock plate 22 is configured to be able to pivot between a second blocking position and a second avoidance position, wherein the plane Y on which the second interlock plate 22 pivots and the plane X on which the third interlock slide plate 21 vertically slides form a predetermined angle with each other, preferably perpendicular, as shown. Figure 15 shown.

[0076] The third interlocking mechanism 2 also includes a rotating disk 55, which is externally and operably connected to the operating mechanism of the additional switching device. When the additional switching device is in the closed state, the rotating disk is in a first position, and when the additional switching device is in the open state, the rotating disk is in a second position. Similar to the status indicator disk, the configuration of the rotating disk 55 is well known to those skilled in the art, as long as the open and closed states of the additional switching device are correlated with the position of the rotating disk 55.

[0077] The rotating disk 55 has a notch 551. In the first position, the notch 551 faces the second interlocking plate 22. Figure 10 As shown, in the second position, the notch 551 faces away from the second interlocking plate 22, as shown in FIG. Figure 8 As shown. Figure 10 As shown, the vertical sliding of the second interlocking slide 21 causes the driving portion 211 of the second interlocking slide 21 to abut against the contact portion 222 of the second interlocking plate 22, driving the second interlocking plate 22 from the second blocking position toward the second avoidance position. Because the notch 551 faces the second interlocking plate 22, a portion of the second interlocking plate (the interlocking portion 223) rotates into the notch 551 of the rotating disk, allowing the second interlocking plate to rotate to the second avoidance position, allowing the second interlocking slide 21 to slide vertically to the predetermined position.

[0078] like Figure 8 As shown, the rotating disk 55 is in the second position, with the notch 551 facing away from the second interlocking plate. At this point, the second interlocking slide plate will slide vertically against the second interlocking plate, driving the second interlocking plate from the second blocking position toward the second avoidance position. However, because the notch 551 faces away from the second interlocking plate, the second interlocking plate 22 is blocked by the peripheral wall of the rotating disk and cannot rotate to the second avoidance position, thereby preventing the second interlocking slide plate from sliding vertically to its predetermined position.

[0079] The third interlocking mechanism 2 also includes a spring 23 and a spring hook plate 24. The spring hook plate is provided with a hole 241, and the second interlocking plate 22 has a spring hook 224. The spring 23 is arranged between the rotation center 221 and the hole 241 to achieve the reset of the second interlocking slide plate 21.

[0080] like Figure 11 As shown, the additional switch device has a locking member 51 pivotally mounted within the housing of the additional switch device. The locking member is associated with an actuating member 53 of the additional switch device, and a vertical plate 511 of the locking member extends outside the housing of the additional switch device. The third interlocking slide 21 has a plate extending vertically from the main body, which has a vertically extending channel 212. The third interlocking slide also has a recessed portion located above the channel. In the initial position of the third interlocking slide, the vertical plate is located within the recessed portion, allowing the locking member to pivot unimpeded. In the predetermined position of the third interlocking slide, the vertical plate is located within the channel, and the locking member is blocked from pivoting.

[0081] The actuator 53 can rotate around the rotation center 532. When the additional switch device switches from the closed state to the open state, the actuator 53 of the additional switch device is rotated by Figure 11 Press the arrow on the left to move in the first (opening) direction ( Figure 11 In the initial position of the third interlocking slide 21, the vertical plate 511 of the locking member does not extend into the channel 212 of the third interlocking slide 21. At this time, the locking member 51 can be rotated in a second direction ( Figure 11 The actuator 53 rotates in the counterclockwise direction (in the middle) so that the actuator 53 can complete the opening operation.

[0082] After the third interlocking slide 21 moves vertically to a predetermined position, the vertical plate 511 of the locking member extends into the channel 212 of the third interlocking slide 21. At this time, the locking member 51 moves along the second direction ( Figure 11 The rotation (counterclockwise in FIG) is blocked by the third interlocking slide 21, thereby preventing the actuating member 53 from performing the opening operation.

[0083] Similarly, if Figure 8 and 9 As shown, the third interlocking slide plate 21 cannot slide vertically to its predetermined position. At this time, the vertical plate 511 is located in the vacant portion, so that the locking member can rotate freely. Therefore, the additional switch device can perform opening and closing operations.

[0084] Second interlock mechanism 3 also includes a bolt fixing plate 33 fixedly mounted to the switch cabinet frame and having a first guide slot 331 for the second interlocking slide to pass through; a bolt 34 pivotally mounted on bolt fixing plate 33 via a rotation center 332, wherein the bolt has a pin 342. Cabinet door 4 includes a strike plate 41 having a slot 411 therein, which is adapted to receive the pin. A spring 35 is disposed between bolt fixing plate 33 and bolt 34 to bias the bolt toward rotation in a predetermined direction.

[0085] like Figure 12 As shown, the second interlocking slide 31 is provided with a handle 313 to facilitate vertical movement; the contact portion 314, when the switchgear is in the open state, the contact portion 314 of the second interlocking slide 31 abuts against the contact portion 341 of the lock tongue, so that the lock tongue cannot pivot in a predetermined direction, thereby preventing the cabinet door from vertically moving toward the open position. In the closed state of the switchgear, after the second interlocking slide 31 slides vertically to the predetermined position, the contact portion 314 of the second interlocking slide disengages from the abutment with the contact portion 341 of the lock tongue, allowing the lock tongue to pivot in a predetermined direction, thereby allowing the cabinet door to vertically move toward the open position.

[0086] The second interlocking mechanism further includes a supporting guide plate 32 fixedly mounted to the frame of the switch cabinet and having a second guide slot 321 for the second interlocking slide plate 31 to pass through.

[0087] like Figure 13a and Figure 13b As shown, at this time, the second interlocking slide 31 is in the initial position, and the contact portion 314 of the second interlocking slide 31 abuts the contact portion 341 of the lock tongue. When the cabinet door is moved upward, the groove 411 drives the lock tongue 34 to rotate, but the lock tongue contact portion 341 is blocked by the contact portion 314 of the second interlocking slide 31, so the cabinet door cannot be opened.

[0088] like Figure 14a and Figure 14b As shown, the second interlocking slide plate 31 is slid upwards to a predetermined position by the handle 313. When the cabinet door is opened upwards, the groove 411 drives the lock tongue 34 to rotate, and the lock tongue contact portion 341 can avoid the second interlocking slide plate 31 contact portion 314, so that the cabinet door can be opened.

[0089] The modular interlocking system of the switch cabinet of the present application enables the first, second, and third interlocking mechanisms to be designed independently of each other. The third interlocking mechanism 2 is an optional module and can be omitted; only the first interlocking mechanism 1 and the second interlocking mechanism 3 can be installed.

[0090] For the third interlocking mechanism 2, within motion plane X, the third interlocking plate 21 and the support plate form a sliding pair; within motion plane Y, the second interlocking plate 22 and the support plate form a revolute pair; and at the intersection of the X and Y motion planes, the third interlocking plate 21 and the second interlocking plate 22 form a contact high pair. When the third interlocking plate 21 moves upward, it drives the second interlocking plate 22 to move clockwise, causing the end of the second interlocking plate 22 to swing downward, forming a reverse logic transmission with the third interlocking plate 21.

[0091] The fixing point 312 of the third interlocking slide 21 and the fixing point of the rotation center 221 of the second interlocking plate 22 in the third interlocking mechanism 2 are both located outside the circuit breaker operating mechanism body P and also outside the circuit breaker body. Figure 16 As shown, the third interlocking mechanism can be installed without disassembling the circuit breaker operating mechanism, which facilitates customers to perform circuit breaker interlocking modification on site.

[0092] Although the present invention has been described in the specification and illustrated in the drawings with reference to various embodiments, those skilled in the art will understand that the above embodiments are merely preferred implementation methods, and certain technical features in the embodiments may not be necessary for solving specific technical problems, so that these technical features may be absent or omitted without affecting the solution of the technical problems or the formation of technical solutions; moreover, the features, elements and / or functions of one embodiment may be appropriately combined, coupled or coordinated with the features, elements and / or functions of one or more other embodiments, unless the combination, coupling or coordination is obviously not feasible.

Claims

1. A switch cabinet comprising a switchgear and a modular interlocking system housed in a frame of the switch cabinet, characterized in that: The modular interlocking system comprises: a first interlock mechanism, capable of switching between a first locked state and a first unlocked state, and configured to be operably connected to the switching device, wherein when the switching device is in a closed state, the first interlock mechanism can switch from the first locked state to the first unlocked state, and when the switching device is in an open state, the first interlock mechanism cannot switch from the first locked state to the first unlocked state; a second interlock mechanism, independently provided relative to the first interlock mechanism, capable of switching between a second locked state and a second unlocked state, and configured to be operably connected to the cabinet door, wherein in the second locked state of the second interlock mechanism, the cabinet door cannot be vertically moved to the open position, and in the second unlocked state of the second interlock mechanism, the cabinet door can be vertically moved to the open position; In which, the second interlock mechanism is also configured to be operably connected to the first interlock mechanism. When the switching device is in the closed state, the first interlock mechanism switches from the first locked state to the first unlocked state, allowing the second interlock mechanism to switch from the second locked state to the second unlocked state, thereby allowing the cabinet door to move vertically to the open position.

2. The switch cabinet according to claim 1, characterized in that: The first interlocking mechanism includes a first interlocking slide, and the second interlocking mechanism includes a second interlocking slide. The first interlocking slide is fixedly mounted to the second interlocking slide, and the second interlocking slide is vertically slidably mounted to the frame of the switch cabinet so that the first interlocking slide and the second interlocking slide can slide vertically together. The first interlocking slide is configured to drive the second interlocking slide to slide vertically from their respective initial positions to their respective predetermined positions when the switching device is in the closed state, so that the first interlocking mechanism switches to the first unlocked state and the second interlocking mechanism switches to the second unlocked state; when the switching device is in the open state, it cannot drive the second interlocking slide to slide vertically to their respective predetermined positions, so that the first interlocking mechanism remains in the first locked state and the second interlocking mechanism remains in the second locked state.

3. The switch cabinet according to claim 2, characterized in that: The first interlocking mechanism further comprises: An interlocking crank arm is pivotally disposed on a housing of the switch device between a first blocking position and a first avoidance position, and is operably connected to a status indicator disk of the switch device, so that when the switch device switches from an open state to a closed state, the status indicator disk of the switch device drives the interlocking crank arm from the first blocking position to the first avoidance position; and when the switch device switches from a closed state to an open state, the status indicator disk of the switch device drives the interlocking crank arm from the first avoidance position to the first blocking position; The first interlocking plate is fixedly mounted to the first interlocking slide. When the interlocking crank arm is in the first blocking position, a portion of the interlocking crank arm abuts against the first interlocking plate, so that the interlocking crank arm blocks the first interlocking plate and further blocks the first interlocking slide from sliding vertically to a predetermined position. When the interlocking crank arm is in the first avoidance position, the interlocking crank arm will not block the first interlocking plate and further will not block the first interlocking slide from sliding vertically to the predetermined position.

4. The switch cabinet according to claim 3, characterized in that: The interlocking crank arm has a protrusion, and the status indication disc of the switching device has a groove, and the protrusion extends into the groove, so that when the switching device switches from the open state to the closed state, the first wall of the groove of the status indication disc of the switching device abuts the protrusion, thereby driving the interlocking crank arm from the first blocking position to the first avoidance position; when the switching device switches from the closed state to the open state, the second wall of the groove of the status indication disc of the switching device abuts the protrusion, driving the interlocking crank arm from the first avoidance position to the first blocking position.

5. The switch cabinet according to claim 4, characterized in that: The first interlock plate has a groove. When the switch device is in the open state, the interlocking arm is in the first blocking position. At this time, a part of the first interlock plate abuts against the protrusion of the interlocking arm. When the switch device is in the closed state, the interlocking arm is in the first avoidance position. At this time, the protrusion and the groove are aligned in the vertical direction, which will not block the first interlock plate and thus will not block the vertical sliding of the first interlocking slide. When the first interlocking slide slides vertically to a predetermined position so that the first interlock mechanism switches to the first unlocked state, the protrusion abuts against the bottom of the groove, blocking the continued sliding of the first interlock plate.

6. The switch cabinet according to claim 2, characterized in that: The second interlocking mechanism further includes: A lock tongue fixing plate, fixedly mounted to the frame of the switch cabinet, having a first guide groove for the second interlocking slide to pass through; The lock tongue is pivotally arranged on the lock tongue fixing plate, wherein the lock tongue has a pin, which is suitable for inserting into a slot on the cabinet door, wherein, in the open state of the switchgear, the second interlocking slide is prevented from sliding vertically, and the second interlocking slide abuts against a portion of the lock tongue to prevent the lock tongue from pivoting in a predetermined direction, thereby preventing the cabinet door from vertically moving toward the open position; In which, in the closed state of the switching device, after the second interlock slide slides vertically to a predetermined position, the second interlock slide disengages from the abutment with that part of the lock tongue to allow the lock tongue to pivot in a predetermined direction, thereby allowing the cabinet door to move vertically toward the open position.

7. The switch cabinet according to claim 6, characterized in that: The second interlocking mechanism further comprises a supporting guide plate fixedly mounted on the frame of the switch cabinet and having a second guide groove for the second interlocking slide plate to pass through.

8. The switch cabinet according to any one of claims 2 to 7, characterized in that: The modular interlocking system further includes an additional switch device housed in a frame of the switch cabinet. The modular interlocking system further includes a third interlocking mechanism, which is independently provided relative to the first interlocking mechanism and the second interlocking mechanism, is capable of switching between a third locked state and a third unlocked state, and is provided outside the additional switch device and configured to be operably connected to the additional switch device of the switch cabinet. In which, the third interlocking mechanism is also configured to be operably connected to the second interlocking mechanism, and only when the additional switching device and the switching device are both in the closed state, the first interlocking mechanism switches from the first locked state to the first unlocked state and the third interlocking mechanism switches from the third locked state to the third unlocked state, thereby allowing the second interlocking mechanism to switch from the second locked state to the second unlocked state.

9. The switch cabinet according to claim 8, characterized in that: The third interlocking mechanism includes a third interlocking slide, which is fixedly mounted to the first interlocking slide or the second interlocking slide. Only when the additional switching device and the switching device are both in the closed state, the first interlocking slide, the second interlocking slide and the third interlocking slide can slide vertically relative to the cabinet door to their respective predetermined positions, so that the first interlocking mechanism switches from the first locked state to the first unlocked state, the third interlocking mechanism switches from the third locked state to the third unlocked state, and the second interlocking mechanism switches from the second locked state to the second unlocked state.

10. The switch cabinet according to claim 9, characterized in that: The third interlocking mechanism further includes: The second interlock plate is pivotally disposed on the housing of the additional switch device outside the additional switch device and is configured to be pivotable between a second blocking position and a second avoidance position, wherein a plane on which the second interlock plate pivots and a plane on which the main body of the third interlocking slide plate vertically slides form a predetermined angle with each other, a rotating disk operatively connected to the operating mechanism of the additional switching device outside the additional switching device, so that when the additional switching device is in a closed state, the rotating disk is in a first position, and when the additional switching device is in an open state, the rotating disk is in a second position, The rotating disk has a notch. When the additional switch device is in the closed state, the rotating disk is in the first position, the notch faces the second interlock plate, and the vertical sliding of the third interlocking slide toward the predetermined position abuts against the second interlocking plate, driving the second interlocking plate from the second blocking position toward the second avoidance position. A part of the second interlocking plate rotates into the notch of the rotating disk, so that the second interlocking plate can rotate to the second avoidance position, allowing the third interlocking slide to slide vertically to the predetermined position. Among them, when the additional switching device is in the open state, the rotating disk is in the second position, the notch deviates from the second interlock plate, and the vertical sliding of the third interlocking slide toward the predetermined position will abut the second interlocking plate, driving the second interlocking plate from the second blocking position toward the second avoidance position. The second interlocking plate is blocked by the peripheral wall of the rotating disk and cannot rotate to the second avoidance position, thereby preventing the third interlocking slide from sliding vertically to its predetermined position.

11. The switch cabinet according to claim 10, characterized in that: The third interlocking slide plate has a plate extending vertically from the main body, the plate having a vertically extending channel, and the third interlocking slide plate also has a vacant portion located above the channel. The additional switching device has a locking member pivotally mounted in a housing of the additional switching device, the locking member is associated with an actuating member of the additional switching device, and a vertical plate of the locking member extends to the outside of the housing of the additional switching device, In the initial position of the third interlocking slide, the vertical plate is located in the vacant portion, and the locking member can pivot unimpeded; in the predetermined position of the third interlocking slide, the vertical plate is located in the channel, and the locking member is blocked and cannot pivot. Among them, in the initial position of the third interlocking slide, the actuator can be actuated to pivot in the opening direction, thereby abutting against the locking member, so that the locking member can pivot in the direction opposite to the opening direction, thereby allowing the additional switching device to switch from the closed state to the open state. Among them, after the third interlocking slide slides vertically to a predetermined position, the vertical plate of the locking member is located in the channel of the third interlocking slide. When the additional switching device switches from the closed state to the open state, the actuator is blocked by the locking member and cannot pivot in the open direction, so that the additional switching device cannot switch from the closed state to the open state.

12. The switch cabinet according to any one of claims 1 to 7, characterized in that: The switching device is a grounding switch.

13. The switch cabinet according to claim 8, characterized in that: The additional switching device is a circuit breaker.

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