CN109427495B - Electrical control cabinet, and driving mechanism mechanical door interlocking device and method for electrical control cabinet - Google Patents
Electrical control cabinet, and driving mechanism mechanical door interlocking device and method for electrical control cabinet Download PDFInfo
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- CN109427495B CN109427495B CN201710775080.1A CN201710775080A CN109427495B CN 109427495 B CN109427495 B CN 109427495B CN 201710775080 A CN201710775080 A CN 201710775080A CN 109427495 B CN109427495 B CN 109427495B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/22—Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
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Abstract
The invention provides a mechanical door interlocking device and a method for an external driving device of an electrical control cabinet. The interlocking device comprises a driving mechanism panel assembly, a selection mechanism and a connecting rod device, at least one of the selection mechanism and the connecting rod device is installed on the cabinet door, when the cabinet door is closed, and the rotating handle is rotated to the second position from the first position, the cam is connected with and drives the connecting rod device, so that the connecting rod device drives the baffle plate to expose out of the driving hole, so that the external driving device receives the driving internal driving mechanism in the driving hole, when the cabinet door is opened, at least one of the selection mechanism and the connecting rod device installed on the cabinet door is separated from the driving mechanism panel assembly along with the opening of the cabinet door, and the cam of the selection mechanism cannot drive the connecting rod device to drive the baffle plate. The invention can closely relate the operable driving mechanism and the electrical safety condition by a mechanical mode, avoids the dependence on electrical signals in the prior art and provides higher reliability.
Description
Technical Field
The present invention relates to a mechanical door interlock device of a driving mechanism, and more particularly, to a door interlock device of a driving mechanism for an electrical cabinet, a method thereof, and an electrical control cabinet including the door interlock device of the driving mechanism.
Background
Some electrical control cabinets require the use of external driving devices to achieve the functional conversion of the electrical control cabinet. Such as a bypass type dual-power transfer switch control cabinet, which comprises a bypass dual-power transfer switch, an automatic dual-power transfer switch and a drawing frame. Wherein bypass dual power transfer switch is generally fixed mounting on taking out the frame, and automatic dual power transfer switch shakes into on taking out the frame through taking out and shakes out the mechanism and install on taking out the frame pluggably. The shaking-in and shaking-out mechanism is driven by an external driving mechanism.
Generally, in order to ensure the safety of operators, the driving device is required to drive the mechanism in the electrical control cabinet to realize function conversion after the function to be converted is selected and under the condition that the cabinet door of the electrical control cabinet is closed. Still take bypass type dual power change-over switch control cabinet as an example, in order to ensure operating personnel's safety, only when having selected bypass change-over switch and cabinet door closure, dual power change-over switch can externally pack into drive arrangement and drive the internal actuating mechanism of cabinet, and make automatic dual power change-over switch shake out through the mechanism that shakes in and out on taking out the frame, extract from taking out the frame, realize electrical isolation with taking out the frame, shake in automatic dual power change-over switch simultaneously, realize with taking out the electrical connection of frame, thereby realize bypass dual power change-over switch and automatic dual power change-over switch's switching over.
In the prior art, the driving mechanism is mainly locked through the electromagnets respectively, and the key hole reserved on the operation panel shields the operation hole of the driving mechanism, but the driving mechanism can not be operated and the electrical safety condition are closely related, and the driving mechanism is locked by the electromagnets depending on electrical signals, so that the reliability is low.
There is therefore a need for an interlock that reliably correlates the operability of the drive mechanism closely with electrical safety conditions.
Disclosure of Invention
It is an object of the present invention to alleviate or solve the above problems by providing a mechanical door interlock arrangement and method for an external drive arrangement for an electrical control cabinet.
According to one aspect of the present invention, there is provided a mechanical door interlock for an external drive of an electrical control cabinet, the electrical control cabinet including a cabinet body and a cabinet door, the cabinet body including a side panel, the door interlock comprising:
a driving mechanism panel assembly mounted on the side plate and engaged with an internal driving mechanism of the electrical control cabinet, the driving mechanism panel assembly including a driving hole for receiving an external driving device to drive the internal driving mechanism and a barrier, the driving mechanism panel assembly having a first state in which the driving hole is blocked by the barrier to disallow reception of the external driving device and a second state in which the barrier is driven to expose the driving hole;
the selection mechanism comprises a rotating handle and a cam which is arranged on a rotating shaft of the rotating handle and rotates along with the rotating handle, and the rotating handle can rotate between a first position and a second position;
a linkage device which associates the driving mechanism panel assembly with the selection mechanism when the cabinet door is closed;
at least one of the selection mechanism and the linkage is mounted on the door such that when the door is closed and the swing handle is rotated from the first position to the second position, the cam engages and drives the linkage, thereby causing the linkage to drive the bezel to expose the drive aperture, the drive mechanism panel assembly is transitioned from the first state to the second state such that the external drive device can be received within the drive aperture to drive the internal drive mechanism, and when the door is opened, at least one of the selection mechanism and the linkage mounted on the door is separated from the drive mechanism panel assembly as the door is opened, the cam of the selection mechanism being unable to drive the linkage to drive the bezel of the drive mechanism panel assembly.
Preferably, the first and second substrates are, among others,
the positional relationship of the selection mechanism and the linkage arrangement is one of the following arrangements: the selection mechanism is arranged on the side plate, and the connecting rod device is arranged on the cabinet door; the selection mechanism is arranged on the cabinet door, and the connecting rod device is arranged on the side plate; the selection mechanism is arranged on the cabinet door, and the connecting rod device is arranged on the cabinet door.
Preferably, wherein the linkage is engaged between the selection mechanism and the drive mechanism panel assembly when the door is closed.
Preferably, wherein the selection mechanism is disposed above the linkage and the drive mechanism panel assembly is disposed below the linkage when the door is closed.
Preferably, the driving mechanism panel assembly further comprises a compression spring, in a first state of the driving mechanism panel assembly, the compression spring enables the baffle plate to be in an ejecting state, in a second state, the baffle plate is retracted against the elastic force of the compression spring, and the opening in the baffle plate is aligned with the driving hole to expose the driving hole.
Preferably, wherein the shutter is swung by the connecting means to expose or shield the driving hole.
Preferably, wherein the linkage arrangement comprises a guide rod and a link, the link is translatable up and down along the guide rod between a retracted position and an extended position.
Preferably, the linkage may be a cam or a lever, among others.
Preferably, wherein the cam comprises a half gear or a lever.
Preferably, the electrical control cabinet comprises a bypass type double power supply changeover switch, a functional drawer cabinet and a draw-out type frame circuit breaker.
Preferably, wherein the first position represents one function of the electrical control cabinet and the second position represents a different function of the electrical control cabinet.
Preferably, wherein the electrical control cabinet is a bypass type dual power transfer switch, the first position and the second position are an automatic dual power transfer switch position and a bypass position.
According to another aspect of the present invention, there is provided a method of mechanically interlocking doors of an external drive apparatus of an electrical control cabinet, the electrical control cabinet including a cabinet body and a cabinet door, the cabinet body including a side panel, the method including:
providing a driving mechanism panel assembly mounted on the side plates and engaged with an internal driving mechanism of the electrical control cabinet, the driving mechanism panel assembly including a driving hole for receiving an external driving device to drive the internal driving mechanism and a barrier, the driving mechanism panel assembly having a first state in which the driving hole is shielded by the barrier to disallow reception of the external driving device and a second state in which the barrier is driven to expose the driving hole;
providing a selection mechanism comprising a rotary handle and a cam mounted on a rotary shaft of the rotary handle for rotation therewith, the rotary handle being rotatable between a first position and a second position;
providing a linkage arrangement that associates the drive mechanism panel assembly with the selection mechanism when the cabinet door is closed;
and mounting at least one of the selection mechanism and the link device on the cabinet door, so that when the cabinet door is closed and the rotating handle is rotated from the first position to the second position, the cam is engaged with and drives the link device, and further the link device drives the baffle plate to expose out of the driving hole, the driving mechanism panel assembly is converted from the first state to the second state, so that the external driving device can be received in the driving hole to drive the internal driving mechanism, and when the cabinet door is opened, at least one of the selection mechanism and the link device mounted on the cabinet door is separated from the driving mechanism panel assembly along with the opening of the cabinet door, and the cam of the selection mechanism cannot drive the link device to drive the baffle plate of the driving mechanism panel assembly.
According to a further aspect of the invention there is provided an electrical control cabinet comprising a mechanical door interlock arrangement according to the preceding for an external drive arrangement of the electrical control cabinet.
The invention can closely relate the operable driving mechanism with the electrical safety condition in a mechanical way, and avoids the dependence of the locking of an electromagnet on the driving mechanism in the electromagnetic type driving mechanism locking device in the prior art on electrical signals.
Drawings
FIG. 1 is a rear perspective view of a drive unit door interlock device mounted on an electrical control cabinet with the cabinet door in a closed position in accordance with an embodiment of the present invention;
FIG. 2 is a front perspective view of a drive unit door interlock device mounted on an electrical control cabinet with the cabinet door in an open position in accordance with an embodiment of the present invention;
FIG. 3 is an enlarged partial perspective view of the portion labeled A in FIG. 1;
FIG. 4 is a front perspective view of a separate selection mechanism according to an embodiment of the present invention;
FIG. 5 is a rear perspective view of the selection mechanism shown in FIG. 4;
FIG. 6 is a front view of a drive aperture of a separate drive mechanism panel assembly being blocked in accordance with an embodiment of the present invention;
fig. 7 is a front view of a drive aperture of a separate drive mechanism panel assembly being exposed according to an embodiment of the present invention.
Detailed Description
The details of the present invention will be explained below with reference to the drawings, but the present invention is not limited to the described specific embodiments. The "up", "down", "left", "right", "front" and "rear" directions in this specification refer to directions according to the electrical control cabinet shown in fig. 1.
FIG. 1 is a rear perspective view of a drive unit door interlock device mounted on an electrical control cabinet according to an embodiment of the present invention. In fig. 1, the electrical control cabinet is generally designated by reference numeral 4 and is shown in a rear perspective view with a cabinet door 41 at the rear, with the cabinet door of the electrical control cabinet in a closed position. The electrical control cabinet 4 switches the functions of the electrical control cabinet 4 by means of separate drives outside the electrical control cabinet 4. The drive device door interlock according to an embodiment of the present invention is provided at the electrical control cabinet 4 at the position indicated by circle a.
Fig. 2 is a front perspective view of a drive unit door interlock device mounted on an electrical control cabinet according to an embodiment of the present invention, with the door 41 of the electrical control cabinet 4 in an open position. As is clear from fig. 2, the cabinet door 41 is opened, the link device 2 is mounted on the cabinet door 41, and the selection mechanism 1 and the drive mechanism panel assembly 3 are mounted on the side panel of the electric control cabinet 4 in a spaced-apart manner. The cabinet door 41 is opened with an opening for allowing access to the selection mechanism 1 and the drive mechanism panel assembly 3. It can be seen that, even if the position of the selection mechanism 1 is set to the second position where the reception of the external drive device by the electric control cabinet is allowed from the first position where the reception of the external drive device by the electric control cabinet is not allowed in the case where the cabinet door 41 is opened, since the selection mechanism 1 and the drive mechanism panel assembly 3 are spaced apart, the selection mechanism 1 cannot act on the drive mechanism panel assembly 3, and therefore the state of the drive mechanism panel assembly 3 cannot be changed, while the drive mechanism panel assembly 3 is always maintained in the first state where the reception of the external drive device is not allowed when not actuated by the link device 2. The link means 2 can only be arranged and engaged between the selection means 1 and the drive mechanism panel assembly 3 when the cabinet door 4 is closed, in which case the selection means 1 can actuate the drive mechanism panel assembly 3 via the link means 2 when the position of the selection means 1 is arranged in the second position allowing the electric control cabinet to receive the external drive, switching the drive mechanism panel assembly 3 from the first state not allowing the reception of the external drive to the second state allowing the reception of the external drive. Mechanically interlocking the closing of the door 41 of the electrical control cabinet 4 with the driving means allowed to be received by the electrical control cabinet 4 in this way closely links the operable driving mechanism to the electrical safety conditions and avoids the dependency of the locking of the driving mechanism by the electromagnet in the electromagnetic driving mechanism locking device of the prior art on the electrical signal, the driving means interlocking device of the electrical control cabinet door of the present invention providing a higher reliability.
Fig. 3 is a partially enlarged perspective view of a portion marked a in fig. 1. In this embodiment, as shown in fig. 3, the door interlock device of the driving device of the electric control cabinet 4 includes a selection mechanism 1 mounted fixed on a side plate, a link device 2 mounted on a cabinet door 41, and a driving mechanism panel assembly 3 mounted on the side plate. The selection means 1 are intended to be switched between a first position, which represents a function of the electrical control cabinet, and in the first position, the electrical control cabinet is not permitted to receive the first position of the external drive device, the second position represents a different further function of the electrical control cabinet, and in which the electrical control cabinet is allowed to receive an external drive, the drive mechanism panel assembly 3 being adapted to be switched between a first state in which it is not allowed to receive an external drive and a second state in which it is allowed to receive an external drive, and receives the external driving device in a second state allowing the external driving device to be received, engages the external driving device with a driving mechanism installed inside the electrical control cabinet, the driving mechanism arranged in the electric control cabinet is driven by the external driving device, so that the function switching of the electric control cabinet is realized.
The mutual positions of the selection mechanism 1, the link device 2 and the drive mechanism panel assembly 3 shown in fig. 3 are positions when the door 41 of the electrical control cabinet is in a closed state, at which time the link device 2 is disposed between the selection mechanism 1 and the drive mechanism panel assembly 3 as the door 41 of the electrical control cabinet is closed, and when the selection mechanism 1 is switched from a first position in which the reception of the external drive device by the door of the electrical control cabinet is not permitted to a second position in which the reception of the external drive device by the door of the electrical control cabinet is permitted, the selection mechanism 1 can actuate the drive mechanism panel assembly 3 via the link device 2 so that the drive mechanism panel assembly 3 is switched from a first state in which the reception of the external drive device is not permitted to a second state in which the reception of the external drive device is permitted. In this way, a mechanical interlocking of the closing of the door 41 of the electrical control cabinet 4 with the drive means allowing reception by the electrical control cabinet 4 is achieved. Fig. 2 shows in particular that when the cabinet door 41 is closed, the selection mechanism 1 is located above the linkage 2 and the drive mechanism panel assembly 3 is located below the linkage 2. In theory, however, the selection mechanism 1, the link device 2, and the drive mechanism panel assembly 3 are not limited thereto as the spatial arrangement permits, and may be oriented in a variety of orientations as long as it is achieved that the link device 2 can engage the selection mechanism 1 and the drive mechanism panel assembly 3 in a driven state.
FIG. 4 is a front perspective view of a separate selection mechanism according to an embodiment of the present invention; fig. 5 is a rear perspective view of the selection mechanism shown in fig. 4. In the embodiment shown in fig. 4, the selection mechanism 1 comprises a panel bracket 11, a rotary handle 12 mounted on one side of the panel bracket 11, and a cam 13 mounted on the rotary shaft of the rotary handle 12 on the opposite side of the panel bracket 11. In fig. 4, the swing handle 12 is shown in a first position that does not allow the electrical control cabinet 4 to receive an external drive, with the long axis of the cam 13 in an approximately horizontal position. When the rotary handle 12 of the selection mechanism 1 is rotated counterclockwise by 90 degrees as shown in the drawing, the rotary handle 12 is set to a second position allowing the electric control cabinet 4 to receive the external driving device, with the long axis of the cam 13 in an approximately vertical position. When the door 41 of the electrical control cabinet 4 is in the closed state, since the link device 2 is disposed between the selection mechanism 1 and the drive mechanism panel assembly 3, the short side of the cam 13 will act on the link device 2 when the long axis of the cam 13 is in the approximately vertical position.
Referring back to fig. 3, it can be seen from fig. 3 that the linkage 2 comprises a guide bar 21 and a link 22, the link 22 being translatable up and down along the guide bar 21 between a retracted position and an extended position. When the door 41 of the electric control cabinet 4 is closed and the link device 2 is disposed between the selection mechanism 1 and the drive mechanism panel assembly 3, the cam 13 is rotated from the short side to the long side thereof during the process in which the long axis of the cam 13 is rotated 90 degrees counterclockwise from the first position of about horizontal to the second position of about vertical position with the selection mechanism 1, whereby the cam 13 pushes the link 21 to move downward, and the link 21 acts on the drive mechanism panel assembly 3.
FIG. 6 is a front view of a drive mechanism panel assembly in a first state disengaged to disallow receipt of an external drive device, according to an embodiment of the present invention; fig. 7 is a front view of a drive mechanism panel assembly in a second state allowing receipt of an external drive device, detached, according to an embodiment of the invention. As shown in fig. 6 and 7, the drive mechanism panel assembly 3 includes a front panel cover 31, a slide plate 32, and a pressure spring (not shown). The front panel cover 31 is provided with a driving hole 311. Due to the presence of the compression spring, the slide plate 32 is in the pop-up state shown in fig. 6 when the drive mechanism front panel 3 is not subjected to the action of the link assembly 2, and at this time, as shown in fig. 6, the drive hole 311 is blocked by the slide plate 32. The sliding plate 32 is provided with an opening, when the cabinet door 4 is closed, the link device 2 is arranged between the selection mechanism 1 and the driving mechanism panel assembly 3 to connect the selection mechanism 1 with the driving mechanism panel assembly 3, when the selection mechanism 1 is arranged at a second position allowing the electric control cabinet 4 to receive an external driving device, the cam 13 rotates from a short side to a long side, the cam 13 pushes the link 21 of the link device 2 to move downwards, the link 21 acts on the sliding plate 32, so that the sliding plate 31 resists the downward movement of a compression spring, the opening of the sliding plate 31 is aligned with the driving hole 311, therefore, the driving hole 311 is exposed, and at the moment, the external driving device can be inserted into the driving hole 311 to actuate an internal driving device in the electric control cabinet 4 to realize the function conversion of the electric control cabinet.
The door interlocking device of the driving device of the electric control cabinet can be suitable for various electric control cabinets, such as a bypass type double-power-supply change-over switch, a functional drawer cabinet, a draw-out type frame circuit breaker and the like.
The application of the door interlock device of the electric control cabinet driving apparatus according to the present invention to the bypass-type dual power transfer switch is described in detail below.
The bypass type dual-power transfer switch consists of a bypass dual-power transfer switch (hereinafter referred to as bypass switch), an automatic dual-power transfer switch (hereinafter referred to as TSE) and a drawing frame. The bypass switch is usually fixedly mounted on the drawer frame, and the TSE can be mounted on the drawer frame in a pluggable manner by means of a swing-in and swing-out mechanism on the drawer frame. In order to ensure the safety of operators, the dual-power transfer switch is generally required to be driven by the driving mechanism to move in the drawer frame only when the bypass transfer switch is selected and the cabinet door is closed, so that the dual-power transfer switch is electrically connected or isolated with the drawer frame.
In the case of a bypass-type dual power transfer switch, the first position of the selection mechanism 1 is the automatic dual power transfer switch position, and the second position of the selection mechanism 1 is the bypass dual power transfer switch. When one of the dual power supplies needs to be maintained and drawn out, the selection knob of the selection mechanism 1 needs to be rotated from the "automatic dual power supply" mode to the "bypass" mode, at this time, the cam 13 also rotates 90 degrees from the short side to the long side, if the cabinet door is in the closed state at this time, the cam 13 pushes the connecting rod 21 of the connecting rod device 2 to move downwards, and further drives the sliding plate 32 of the driving mechanism panel assembly 3 to move downwards to expose the driving hole 311, so that the driving mechanism panel assembly 3 reaches the second state where the driving hole 311 of fig. 7 is exposed from the first state where the driving hole 311 of fig. 6 is blocked; when the cabinet door 41 is in the open state, the link device 2 is separated from the selection mechanism 1 and the drive mechanism panel assembly 3, the link device 2 is no longer connected to the selection mechanism 1 and connected to the drive mechanism panel assembly 3, and the selection mechanism 1 cannot act on the drive mechanism panel assembly 3, so that the drive hole 311 remains blocked.
When one of the double power supplies is repaired and needs to be driven to a connection position, the power supply is pushed to an isolation position, at the moment, the selection mechanism 1 is in a bypass mode, and the driving mechanism panel assembly 3 is in a first state that does not allow to receive an external driving device; then the door 41 is closed, and during the closing of the door 41, the cam 13 will drive the slide plate 32 via the connecting rod 21 to move downwards, so that the driving mechanism panel assembly reaches the second state of fig. 7, which allows receiving the external driving device. An external driving device can be inserted at the moment, the maintained dual-power transfer switch drives a shaking-in and shaking-out mechanism on the drawing frame through an internal driving mechanism driven by the external driving device, and the switch is electrically connected with the drawing frame.
When the mode "automatic (automatic dual power supply)" of the knob handle of the mechanism 1 is selected, the link 21 of the connecting device 2 does not act on the slide plate 32, and the slide plate 32 is in its high-position state, i.e., the door interlock device of the driving device according to the present invention is in the locked state.
Therefore, in the prior art, the driving mechanism is mainly locked through the electromagnets respectively, the key hole is reserved on the operation panel to shield the operation hole, the conditions for operating the driving mechanism are not closely related, and the reliability is low depending on an electric signal. This technique adopts mechanical mechanism, makes actuating mechanism's maneuverability closely link up with bypass switch's selection knob, the state of cabinet door to make rocking in of dual power supply conversion shake out safe and reliable more.
In a modification of the door interlock device of the driving apparatus according to the present invention, the selection mechanism 1 and the link device 2 may be both provided on the cabinet door 41, and the driving mechanism panel assembly 3 may be provided on a side panel of the electric control cabinet 4, or the link device 2 and the driving mechanism panel assembly 3 may be provided on a side panel of the electric control cabinet 4, and only the selection mechanism 1 may be provided on the cabinet door 41, so that it is possible to achieve a close relationship between the operability of the driving mechanism and the states of the rotating handle of the selection mechanism and the cabinet door, thereby making the operation of the electric control cabinet safer and more reliable.
In a variant of the door interlock of the drive according to the invention, the cam 13 of the selection mechanism 1 can have other shapes and configurations, such as a half-gear, a toggle lever, etc., as long as it is achieved that in the first position the linkage 2 is not driven and in the second position the linkage 2 is driven to actuate the drive mechanism panel assembly 3 such that the drive mechanism panel assembly 3 blocks the drive hole 311 or exposes the drive hole 311. The link device 2 may have other shapes and structures, such as a half gear or a lever, as long as it can block the driving hole 311 or expose the driving hole 311 by the selection mechanism 1 by operating the driving mechanism panel assembly 3 through the link device 2. The driving mechanism panel assembly 3 may have other shapes and structures, for example, the baffle 32 may cover the driving hole or expose the driving hole in a swinging manner instead of the up-down translation manner of the baffle 32.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that features from several embodiments may be combined to obtain further embodiments of the invention, the scope of which is defined solely by the appended claims. Numerous variations and modifications may be made to the described embodiments without departing from the scope of the invention.
Claims (14)
1. A mechanical door interlock for an external drive of an electrical control cabinet, the electrical control cabinet including a cabinet body and a cabinet door, the cabinet body including a side panel, the door interlock comprising:
a driving mechanism panel assembly mounted on the side plate and engaged with an internal driving mechanism of the electrical control cabinet, the driving mechanism panel assembly including a driving hole for receiving an external driving device to drive the internal driving mechanism and a barrier, the driving mechanism panel assembly having a first state in which the driving hole is blocked by the barrier to disallow reception of the external driving device and a second state in which the barrier is driven to expose the driving hole;
the selection mechanism comprises a rotating handle and a cam which is arranged on a rotating shaft of the rotating handle and rotates along with the rotating handle, and the rotating handle can rotate between a first position and a second position;
a linkage device which associates the driving mechanism panel assembly with the selection mechanism when the cabinet door is closed;
at least one of the selection mechanism and the linkage is mounted on the door such that when the door is closed and the swing handle is rotated from the first position to the second position, the cam engages and drives the linkage, thereby causing the linkage to drive the bezel to expose the drive aperture, the drive mechanism panel assembly is transitioned from the first state to the second state such that the external drive device can be received within the drive aperture to drive the internal drive mechanism, and when the door is opened, at least one of the selection mechanism and the linkage mounted on the door is separated from the drive mechanism panel assembly as the door is opened, the cam of the selection mechanism being unable to drive the linkage to drive the bezel of the drive mechanism panel assembly.
2. The mechanical door interlock arrangement for an external drive arrangement of an electrical control cabinet of claim 1, wherein the positional relationship of the selection mechanism and the linkage arrangement is one of the following arrangements: the selection mechanism is arranged on the side plate, and the connecting rod device is arranged on the cabinet door; the selection mechanism is arranged on the cabinet door, and the connecting rod device is arranged on the side plate; the selection mechanism is arranged on the cabinet door, and the connecting rod device is arranged on the cabinet door.
3. The mechanical door interlock for an external drive of an electrical control cabinet of claim 2 wherein the linkage engages between the selection mechanism and the drive mechanism panel assembly when the door is closed.
4. The mechanical door interlock device for an external drive unit of an electrical control cabinet of claim 3, wherein the selection mechanism is disposed above the linkage and the drive mechanism panel assembly is disposed below the linkage when the door is closed.
5. The mechanical door interlock device for an external drive unit of an electrical control cabinet of claim 2, wherein the drive mechanism panel assembly further comprises a compression spring, the compression spring causing the shutter to be in the ejected state in the first state of the drive mechanism panel assembly, and the shutter to be retracted against a spring force of the compression spring in the second state, the opening in the shutter being aligned with the drive aperture to expose the drive aperture.
6. The mechanical door interlock device for an external drive unit of an electrical control cabinet according to claim 2, wherein the barrier swings by the connection unit to expose or shield the drive hole.
7. The mechanical door interlock arrangement for an external drive arrangement of an electrical control cabinet of claim 2, wherein the linkage arrangement includes a guide rod and a link that is translatable up and down along the guide rod between a retracted position and an extended position.
8. The mechanical door interlock device for an external drive unit of an electrical control cabinet of claim 2, wherein the linkage may be a half gear or a lever.
9. The mechanical door interlock for an external drive of an electrical control cabinet of claim 2, wherein the cam comprises a half gear or a toggle lever.
10. The mechanical door interlock arrangement for an external drive arrangement of an electrical control cabinet of claim 2, wherein the electrical control cabinet includes a bypass-type dual power transfer switch, a functional drawer cabinet, a draw-out frame circuit breaker.
11. The mechanical door interlock arrangement for an external drive arrangement for an electrical control cabinet of claim 2, wherein the first position represents one function of the electrical control cabinet and the second position represents a different function of the electrical control cabinet.
12. The mechanical door interlock arrangement for an external drive arrangement for an electrical control cabinet of claim 10 wherein the electrical control cabinet is a bypass type dual power transfer switch and the first and second positions are an automatic dual power transfer switch position and a bypass position.
13. A method of mechanically interlocking doors of an external drive of an electrical control cabinet, the electrical control cabinet including a cabinet body and a cabinet door, the cabinet body including side panels, the method comprising:
providing a driving mechanism panel assembly mounted on the side plates and engaged with an internal driving mechanism of the electrical control cabinet, the driving mechanism panel assembly including a driving hole for receiving an external driving device to drive the internal driving mechanism and a barrier, the driving mechanism panel assembly having a first state in which the driving hole is shielded by the barrier to disallow reception of the external driving device and a second state in which the barrier is driven to expose the driving hole;
providing a selection mechanism comprising a rotary handle and a cam mounted on a rotary shaft of the rotary handle for rotation therewith, the rotary handle being rotatable between a first position and a second position;
providing a linkage arrangement that associates the drive mechanism panel assembly with the selection mechanism when the cabinet door is closed;
and mounting at least one of the selection mechanism and the link device on the cabinet door, so that when the cabinet door is closed and the rotating handle is rotated from the first position to the second position, the cam is engaged with and drives the link device, and further the link device drives the baffle plate to expose out of the driving hole, the driving mechanism panel assembly is converted from the first state to the second state, so that the external driving device can be received in the driving hole to drive the internal driving mechanism, and when the cabinet door is opened, at least one of the selection mechanism and the link device mounted on the cabinet door is separated from the driving mechanism panel assembly along with the opening of the cabinet door, and the cam of the selection mechanism cannot drive the link device to drive the baffle plate of the driving mechanism panel assembly.
14. An electrical control cabinet comprising a mechanical door interlock for an external drive of an electrical control cabinet according to any one of claims 1 to 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710775080.1A CN109427495B (en) | 2017-08-31 | 2017-08-31 | Electrical control cabinet, and driving mechanism mechanical door interlocking device and method for electrical control cabinet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710775080.1A CN109427495B (en) | 2017-08-31 | 2017-08-31 | Electrical control cabinet, and driving mechanism mechanical door interlocking device and method for electrical control cabinet |
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| CN109427495A CN109427495A (en) | 2019-03-05 |
| CN109427495B true CN109427495B (en) | 2020-03-27 |
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| CN112467594B (en) * | 2020-10-30 | 2022-09-09 | 浙江高压开关厂有限公司 | Miniaturized vacuum looped netowrk cubical switchboard |
| CN112582898B (en) * | 2020-10-30 | 2023-04-11 | 浙江高压开关厂有限公司 | Linkage lock gate type structure equipment |
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|---|---|---|---|---|
| GB204792A (en) * | 1922-07-11 | 1923-10-11 | Gen Electric | Improvements in and relating to electric switches |
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| CN201402755Y (en) * | 2009-03-27 | 2010-02-10 | 常州市尔悦电力设备有限公司 | Interlocking device |
| CN201392995Y (en) * | 2009-04-20 | 2010-01-27 | 北京合纵科技股份有限公司 | Either-or interlocking device for double power switch cabinets |
| CN201975287U (en) * | 2011-04-11 | 2011-09-14 | 浙江临高电气实业有限公司 | Rear door interlocking device for mid-set switch cabinet |
| CN102403141B (en) * | 2011-11-24 | 2013-09-25 | 山东泰开成套电器有限公司 | Switch cabinet back door and ground switch interlocking mechanism |
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| CN203085400U (en) * | 2012-12-31 | 2013-07-24 | 施耐德电气华电开关(厦门)有限公司 | Interlocking mechanism of grounding switch and cable chamber door |
| CN203481627U (en) * | 2013-09-06 | 2014-03-12 | 吉林省电力有限公司长春供电公司 | 10KV electric power complete equipment misoperation-preventive lock |
| CN205104391U (en) * | 2015-10-30 | 2016-03-23 | 施耐德电器工业公司 | Cable chamber door interlocking gear |
| CN106158455B (en) * | 2016-08-30 | 2018-11-27 | 安徽中电兴发与鑫龙科技股份有限公司 | A kind of anti-interlock of high-tension switch cabinet |
| CN106785984A (en) * | 2017-01-10 | 2017-05-31 | 唐建洲 | Anti-error unlatching 10kV high-tension switch cabinets rear cabinet door shrouding novel closure baffle plate |
| CN207302924U (en) * | 2017-08-31 | 2018-05-01 | 施耐德电器工业公司 | Electrical control cabinet and the mechanical door interlock for its driving mechanism |
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2017
- 2017-08-31 CN CN201710775080.1A patent/CN109427495B/en active Active
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