WO2019174181A1

WO2019174181A1 - Electrical switch cabinet

Info

Publication number: WO2019174181A1
Application number: PCT/CN2018/100734
Authority: WO
Inventors: 朱明辉; 潘正东; 潘琦
Original assignee: 温州市中意锁具电器有限公司
Priority date: 2018-03-13
Filing date: 2018-08-16
Publication date: 2019-09-19
Also published as: CN108336681A; CN108336681B

Abstract

Disclosed is an electrical switch cabinet. The electrical switch cabinet comprises a drawer cabinet (8) and a drawer (9), wherein the drawer cabinet is provided with a slide rail (81), roller shafts are arranged on two sides of the drawer, a roller is sleeved on the roller shaft, a ball is arranged between the roller and the roller shaft, and the drawer is movably arranged in the drawer cabinet by means of the sliding fit between the roller and the roller shaft. The drawer cabinet is provided with a dual-plug connector (1); the dual-plug connector is provided with an outer contact (61) and an inner contact (62), which are electrically connected; and the outer contact extends outside the drawer cabinet and is fixedly inserted into and mates with a busbar (82), and the inner contact is arranged inside the drawer cabinet. A power strip mounting seat (7) is provided on the drawer at a position corresponding to the inner contact, several connecting power strips (71) are provided on the power strip mounting seat, and the connecting power strips are movably inserted into and mate with the inner contact. The electrical switch cabinet can avoid the repeated connection of a contact connecting member with the busbar and prolong the service life of the busbar.

Description

Electrical switchgear

Technical field

The invention relates to the technical field of electrical switchgear, in particular to an electrical switchgear with good protection of the busbar and high protection level.

Background technique

The switchgear is an electrical device. The external line of the switchgear enters the main control switch in the cabinet first, then enters the sub-control switch, and each shunt is set according to its needs. The existing electrical cabinets are usually connected to the busbars through the plug-in rows, and the power supply to the electrical cabinets is realized through the busbars. However, in public places such as subways and trains, it is necessary to check the connection of the electrical cabinets daily. When the electrical switch cabinet drawer is opened, the plug is removed from the busbar, and the plug is repeatedly separated from the busbar, which easily causes the busbar to wear out, affecting the service life of the busbar, and the replacement of the busbar is also very complicated and complicated, and It is necessary to stop the power supply to replace, which is not conducive to the use of public places. At the same time, the existing busbar protection performance is insufficient. After the switch cabinet drawer is pulled out, the busbar is exposed, and the constructor is likely to accidentally touch or touch other foreign objects. It is easy to cause danger and a safety accident occurs.

technical problem

In view of the deficiencies of the prior art, the present invention provides an electrical switchgear that avoids repeated insertion and removal of the contact connector with the busbar to extend the service life of the busbar.

Technical solution

The invention provides an electric switchgear cabinet, comprising a drawer cabinet and a drawer, wherein the drawer cabinet is provided with a slide rail, and the two sides of the drawer are provided with a roller shaft, and the roller shaft is sleeved with a roller, the roller and the roller axle Balls are disposed between the drawers, and the drawers are disposed in the drawer cabinet by sliding movements of the rollers and the slide rails. The drawer cabinets are provided with double-plug joints, and the double-plug joints are provided with a conductive outer surface. a contact and an inner contact, the outer contact extends outside the drawer cabinet and is fixedly mated with the busbar, the inner contact is disposed in the drawer cabinet, and the drawer is provided with a socket mount corresponding to the position of the inner contact The socket mount is provided with a plurality of connection slots, and the connection slots are movablely engaged with the inner contacts.

Beneficial effect

The beneficial effect of the arrangement is that, by adopting the above scheme, the inner contact and the outer contact are arranged on the drawer cabinet, and the outer contact is directly fixedly connected with the busbar, wherein the fixed plug connection is connected in the form of plugging, but is fixed. The daily use is not loose, so that the contact assembly is no longer repeatedly inserted and removed with the busbar, avoiding the damage caused by the wear and tear of the busbar due to repeated insertion and removal, and prolonging the service life of the busbar, only the contact component is required in the replacement It is more convenient and safer to replace, and is connected to the connecting plug through the inner contact, and the circuit is connected and interrupted by plugging the connecting strip with the inner contact, as long as the plug wear occurs in the connecting plug On the other hand, the replacement of the joint strips is simpler, faster and safer than the busbars, further improving the reliability and safety of the equipment.

The present invention is further provided that the double-plug connector is further provided with a cover, the cover is disposed between the inner contact and the drawer and is disposed on the inner contact, the cover is provided with a baffle and a connection window, the connection window is disposed corresponding to the position of the inner contact, the baffle is slidably disposed on the cover and forms a shielding or opening to the inner contact, and the baffle is provided with a working window for exposing the inner contact The cover is further provided with a driving device for driving the shutter to slide when the connecting plug is pushed in with the drawer to make the working window and the connecting window overlap to expose the inner contact.

The beneficial effect of the arrangement is that, with the above solution, the cover is provided with the baffle, and when the connecting plug is not in contact with the inner contact, the baffle closes the connecting window to prevent foreign matter or fingers from coming into contact with the contact, thereby The contact between the busbars causes the risk of electric shock, meets the protection standard of RP40, avoids the danger of accidental contact of workers during work, and sets a working window on the baffle. The size of the working window is adapted to the connection window, and is matched with The driving device, under the action of the driving device, the baffle slides as the connecting strip penetrates to realize the recombination of the working window and the connecting window to expose the inner contact, and the driving device can adopt a mechanical structure, for example, a locking is provided The switch, after pressing the switch, unlocks the baffle, so that the baffle slides down in the spring to make the working window and the connecting window coincide. The form here can be implemented by any mechanism that can achieve the action, and of course, the sensor can also be used. The cooperation with the driving member can automatically push open the baffle when the connecting plug is sensed, which is simple and convenient and more efficient.

The invention further provides that the driving device comprises a ejector rod and a push rod, the side wall of the cover is provided with a running groove, and the baffle extends into the stroke groove with a guiding column, and the guiding column and the running groove slide Cooperating, the guide post and the cover are in contact with a reset torsion spring for resetting the baffle to block the inner contact of the baffle, the push rod is hinged at one end to the guide post, and the other end is provided with a sliding groove, the top One end of the rod is a hinged end, and the other end is a sliding end, the hinge end is hinged on the side wall of the cover, and the sliding end is clamped in the sliding groove and is slidably engaged with the sliding groove, the sliding end is There is also a return spring between the slip grooves, the return spring force is greater than the reset torsion spring setting, and the jack is connected with the push rod to form an abutting end for resisting the plug mounting seat, the resisting end is high The distance from the end of the abutting end to the end surface of the cover is greater than the distance from the insertion end of the connecting plug to the end surface of the plug mounting seat.

The advantage of this arrangement is that, in the above scheme, the driving device is arranged in such a form that the ejector pin and the push rod are combined to form a convex abutting end, and one end of the push rod is hinged with the guiding column, and the other end is provided with a sliding groove. One end of the ram is hinged end and hinged on the side wall of the cover, and the other end is a sliding end. The sliding end is clamped in the sliding groove and is slidably engaged with the sliding groove, where the joint of the hinge end and the guide post are located The positions are respectively the two ends of the same side wall of the cover. When the drawer is pushed inward to insert the connecting busbar into the inner contact, the contact end receives the pressure against the end surface of the plug mounting seat, and the spring force of the return spring is greater than the reset torque. In the spring setting, the sliding end does not slip in the sliding groove first, but the reset torsion spring is first compressed, so that the guiding column advances first, thereby pushing the sliding of the baffle, so that the working window and the connection The windows are coincident for easy insertion of the plug. When the flap is slid to the limit position, the reset torsion spring is no longer compressed. At this time, the return spring is compressed, so that the sliding end of the ejector slides in the sliding groove, so that the ejector Protrusion Pressure gradually shorter, the final end surface flush with the cover, so that the connector plug is inserted row of the window and connected to the connector inner contact. At the same time, the distance from the end of the abutting end to the baffle is greater than the distance from the insertion end of the connecting strip to the end surface of the plug mounting seat. This arrangement prevents the intrusion end from being in contact with the insert mounting seat when the inserted busbar is in contact with the cover, ensuring the use. effect.

The present invention is further provided with a locking hole at a position corresponding to the connecting window on the side wall of the cover, the baffle is provided with a locking port corresponding to the position of the locking hole, and the locking hole is electrically connected to the connecting window through the locking opening to form a padlock The lock.

The beneficial effect of the arrangement is that, by adopting the above scheme, the locking hole and the locking port are formed to form a locking channel, so that after the drawer is pulled out, the locking channel can be locked by the padlock, and the sliding of the baffle is restricted to avoid accidentally pressing the opposite end of the baffle. Open it so that it can be dangerous if it protrudes into a foreign object or a finger touches a live contact.

The invention is further provided with an insulating plate disposed between the connecting strips, the insulating plate being arranged shorter than the connecting strip.

The advantage of this arrangement is that, with the above scheme, the insulating plate is arranged to avoid arcing, and the arc can be cut by the insulating plate to ensure electrical connection.

The present invention is further provided that the outer contact and the inner contact are integrally provided, and the outer contact and the outer contact outer cover are provided with an insulating housing, and the end of the insulating housing is provided for exposing the outer contact or The plug connector of the inner contact.

The advantage of this arrangement is that, with the above solution, the insulating housing is provided to further insulate the arc generated between the adjacent outer contacts or between the inner contacts to ensure normal electrical connection of the device.

DRAWINGS

1 is a schematic structural view of an embodiment of the present invention;

2 is a schematic structural view of an extreme assembly of a double-plug connector according to an embodiment of the present invention;

Figure 3 is a side elevational view of the extreme assembly of the double-inserted connector in the embodiment of the present invention;

Figure 4 is an exploded view of the extreme assembly of the double-inserted connector in the embodiment of the present invention;

FIG. 5 is a schematic structural view of a socket mounting seat according to an embodiment of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION

1 to 5, the present invention discloses an electrical switchgear, an electrical switchgear, including a drawer cabinet 8 and a drawer 9, the drawer cabinet 8 is provided with a slide rail 81, and the drawer 9 a roller shaft is disposed on the side, a roller is sleeved on the roller shaft, a ball is disposed between the roller and the roller shaft, and the drawer 9 is disposed in the drawer cabinet 8 by a sliding cooperation between the roller and the sliding rail 81. The drawer cabinet 8 is provided with a double-plug connector 1 , and the double-plug connector 1 is provided with a conductive outer contact 61 and an inner contact 62. The outer contact 61 and the inner contact 62 are integrated. The outer cover 61 is provided with an insulative housing 63. The end of the insulative housing 63 is provided with a plug interface 631 for exposing the outer contact 61 or the inner contact 62. The outer contact 61 extends to The drawer 8 is externally fixedly inserted and mated with the busbar 82, and the inner contact 62 is disposed in the drawer 8. The drawer 9 is provided with a plug mounting seat 7 corresponding to the inner contact 62. The plug mounting seat 7 is provided with a plurality of connection slots 71, the connection slots 71 are movably mated with the inner contacts 62, and the connection slots 71 are disposed between Insulating plate 72, the insulating plate 72 is shorter than the connection Strip 71 is provided. The double-plug connector 1 is further provided with a cover 2 disposed between the inner contact 62 and the drawer 9 and covering the inner contact 62. The cover 2 is provided with a block a plate 5 and a connecting window 22, the connecting window 22 is disposed corresponding to the inner contact 62, and the baffle 5 is slidably disposed on the cover 2 and forms a shielding or opening to the inner contact 62. A working window 52 for exposing the inner contact 62 is provided, and the cover 2 is further provided for driving the baffle 5 to slide when the connecting plug 71 is pushed in with the drawer 9, so that the working window 52 and the connecting window 22 are overlapped and exposed. The drive of the contact 62. The driving device includes a ejector rod 3 and a push rod 4, and a sidewall of the cover 2 is provided with a stroke groove 21, and the baffle plate 5 extends into the stroke groove 21 with a guide post 42, the guide post 42 and the stroke The slot 21 is slidably engaged, and the guide post 42 and the cover 2 are in contact with a reset torsion spring 44 for resetting the baffle 5 to block the inner contact 62 of the baffle 5, and one end of the push rod 4 is hinged with the guide post 42 The other end is provided with a sliding groove 41, one end of which is a hinged end 31, and the other end is a sliding end 32, the hinged end 31 is hinged on the side wall of the cover 2, and the sliding end 32 is locked The sliding groove 41 is slidably engaged with the sliding groove 41. The sliding end 32 and the sliding groove 41 also resist a return spring 43. The spring force of the return spring 43 is greater than that of the reset torsion spring 44. The ejector rod 3 is connected with the push rod 4 to form an abutting end for abutting against the arranging mount 7, and the yoke end is disposed higher than the end surface of the cover 2, and the end of the apex end to the cover 2 is greater than the connecting strip 71 insertion end to the socket mount 7 end distance setting. A lock hole 23 is disposed at a position corresponding to the connecting window 22 on the side wall of the cover 2, and the baffle 5 is provided with a lock port 51 corresponding to the position of the lock hole, and the lock hole 23 is electrically connected to the connection window 22 through the lock port 51. Locking track for padlocks.

The above-described embodiments are merely preferred embodiments of the present invention, and the scope of the present invention is not limited thereto. Therefore, equivalent changes made by the scope of the present invention, such as equivalent products using similar processes and similar structures, are still The scope of the invention is covered.

Embodiments of the invention

The description paragraphs of the embodiments of the present invention are entered here.

Industrial applicability

Type the industrial usability description paragraph here.

Sequence table free content

Type the sequence table free content description paragraph here.

Claims

An electric switchgear, comprising a drawer cabinet and a drawer, the drawer cabinet is provided with a slide rail, and the two sides of the drawer are provided with a roller shaft, the roller shaft is sleeved with a roller, and the roller and the roller axle are arranged There is a ball, the drawer is disposed in the drawer cabinet by the sliding cooperation of the roller and the slide rail, wherein the drawer cabinet is provided with a double-plug connection seat, and the double-plug connection seat is provided with a phase conduction The outer contact and the inner contact extend to the outside of the drawer cabinet and are fixedly inserted and mated with the female row, the inner contact is disposed in the drawer cabinet, and the corresponding inner contact position of the drawer is arranged with the plug installation The socket is provided with a plurality of connection slots, and the connection slots are movablely engaged with the inner contacts.
The electrical switchgear cabinet according to claim 1, wherein the double-plug connector is further provided with a cover, and the cover is disposed between the inner contact and the drawer and is disposed on the inner contact. The cover is provided with a baffle and a connection window, the connection window is disposed corresponding to the position of the inner contact, the baffle is slidably disposed on the cover and forms a shielding or opening to the inner contact, the baffle A work window for exposing the inner contact is provided, and the cover is further provided with a driving device for driving the shutter to slide when the connecting plug is pushed in with the drawer so that the working window and the connecting window overlap to expose the inner contact.
The electrical switchgear cabinet according to claim 2, wherein the driving device comprises a jack and a push rod, and a sidewall of the cover is provided with a running groove, and the baffle extends into the stroke slot with a guiding post The guide post is slidably engaged with the stroke groove. The guide post and the cover are in contact with a reset torsion spring for resetting the baffle to block the inner contact of the baffle, and one end of the push rod is hinged to the guide post, and One end is provided with a sliding groove, one end of the ram is a hinged end, and the other end is a sliding end, the hinged end is hinged on the side wall of the cover, and the sliding end is clamped in the sliding groove and the sliding groove a sliding fit, the sliding end and the sliding groove also collide with a return spring, the return spring force is greater than the reset torsion spring setting, and the jack is connected with the push rod to form a socket for the socket The abutting end is disposed higher than the end surface of the cover, and the distance from the end of the abutting end to the end of the cover is greater than the distance from the insertion end of the connecting plug to the end surface of the socket mounting seat.
The electrical switchgear cabinet according to claim 2 or 3, wherein a locking hole is disposed on a side wall of the cover wall corresponding to the connecting window, and the baffle is provided with a locking port corresponding to the position of the locking hole, the locking hole The lockway is connected to the connection window through the lock to form a lockway for the padlock.
The electrical switchgear cabinet according to any one of claims 1 to 3, characterized in that: the insulating strips are arranged between the connecting strips, and the insulating sheets are arranged shorter than the connecting strips.
The electrical switchgear cabinet according to claim 1, wherein the outer contact and the inner contact are integrally provided, and the outer contact outer cover is provided with an insulating housing, and the end of the insulating housing is provided for exposure. Plug connector for external or internal contacts.