CN110880689A

CN110880689A - Safe isolated block terminal

Info

Publication number: CN110880689A
Application number: CN201911381201.XA
Authority: CN
Inventors: 不公告发明人
Original assignee: Ningbo Fenghua Pingxi Distribution Technology Co Ltd
Current assignee: Kororena Electric Co., Ltd
Priority date: 2019-12-28
Filing date: 2019-12-28
Publication date: 2020-03-13
Anticipated expiration: 2039-12-28
Also published as: JP2021108529A; CN110880689B; JP6847352B1

Abstract

The invention discloses a safe isolated distribution box, which comprises a box body, wherein a cavity with a left opening is arranged in the box body, a connecting device is arranged in the cavity, two connectors are fixedly arranged on the inner wall of the right side of the cavity, the left end of each connector is connected with a transformer in the connecting device, the right end of each connector is electrically connected with a wire bundle, a sealing plate is arranged on the left side of the box body in a sliding mode, and sliding rods are fixedly connected to the right end of each sealing plate in an up-and-down symmetrical mode.

Description

Safe isolated block terminal

Technical Field

The invention relates to the field of power distribution, in particular to a safe isolated distribution box.

Background

The power distribution is a link directly connected with a user in a power system and distributing power to the user, and the power distribution system consists of a power distribution substation, a high-voltage distribution line, a distribution transformer, a low-voltage distribution line and corresponding control protection equipment.

The distribution box can be switched on or switched off by means of a manual or automatic switch during normal operation, but a common distribution box can also break down, the use of electric appliances in the distribution box can be influenced by the ambient temperature and the like, electric leakage is easy to occur when the distribution box breaks down, and electric shock accidents are easy to occur when a human body contacts the distribution box.

Disclosure of Invention

In order to solve the problems, the present embodiment designs a safe isolated distribution box, which comprises a box body, wherein a cavity with a left opening is arranged in the box body, a connecting device is arranged in the cavity, two connectors are fixedly arranged on the inner wall of the right side of the cavity, the left end of each connector is connected with a transformer in the connecting device, the right end of each connector is electrically connected with a wire bundle, one wire bundle inputs high-voltage current into the transformer, the other wire bundle outputs low-voltage current from the transformer, high-voltage current step-down distribution is completed through the two wire bundles, the two connectors and the transformer, a sealing plate is arranged on the left side of the box body in a sliding manner, sliding rods are fixedly connected to the right end of the sealing plate in an up-down symmetrical manner, guide holes with a left opening are arranged in the box body in an up-down symmetrical, the right end of the sliding rod extends into the guide hole and is connected with the box body in a sliding manner, the sliding rod is meshed and connected with the connecting device to push the sealing plate to slide rightwards and drive the sliding rod to slide rightwards, so that the transformer is driven to slide rightwards through meshing connection and is connected with the joint, an isolating device is arranged in the sealing plate, two cams are rotationally arranged in the isolating device, when the sealing plate closes the cavity, the isolating device is manually driven and pushes the connecting device through the two cams to further enable the connecting device to be separated from the sealing plate, so that the connecting device is prevented from generating electricity leakage and conducting electricity to the sealing plate when in failure, heat conducting plates and insulating plates are fixedly arranged in the inner walls of the upper side and the lower side of the cavity and the inner wall of the right side of the cavity, and the insulating plates are used for, the heat-conducting plate can with the heat that the connecting device during operation produced passes through the box conduction is gone out, the box upper end has linked firmly the air pump, the air pump with the intercommunication is equipped with the trachea between the cavity, starts the air pump, through the trachea will air in the cavity with the air outside the box exchanges, and then right the temperature in the cavity is cooled down. Advantageously, the connection device comprises a connection plate attached to the left end of the transformer, the left side of the connection plate is slidably provided with a sliding plate, the right end of the sliding plate is distributed in an annular array and fixedly connected with four connecting rods, four limit cavities are arranged in the connecting plates, the right end of the connecting rod extends into the limiting cavity and slides along the limiting cavity, racks are fixedly connected with the upper end and the lower end of the limiting cavity, a small gear and a large gear are connected between the racks on the two sides and the sliding rods on the two sides in a meshed manner to push the sealing plate rightwards, thereby driving the sliding rod to slide rightwards, further driving the rack to slide rightwards through the pinion and the bull gear, and then the connecting plate is driven to slide rightwards, so that the transformer is driven to slide rightwards and is connected with the joint, and meanwhile, the connecting plate drives the sliding plate to slide into the cavity through the connecting rod.

Preferably, two interfaces are arranged in the transformer, and the transformer is connected to the two connectors through the two interfaces respectively.

Preferably, the guiding hole with the intercommunication is equipped with the straight-teeth gear chamber between the cavity, the pinion with the gear wheel rotates and locates in the straight-teeth gear chamber, the pinion with the slide bar meshing is connected, the gear wheel with rack toothing connects, and the pinion with gear wheel meshes mutually, the slide bar the pinion the gear wheel and for speed reduction between the rack, promptly the sliding speed of closing plate is greater than the sliding speed of connecting plate, and the slide bar the pinion the gear wheel and unidirectional transmission between the rack, promptly the slide bar is when sliding as the drive part, just can pass through the pinion and gear wheel drives the rack slides.

Preferably, pull grooves with back-to-back openings are symmetrically formed in the sliding plate, and fingers extend into the pull grooves to conveniently and manually pull the sliding plate, so that the connecting plate and the transformer can be conveniently pulled out.

Advantageously, the isolating device comprises a circular groove with a left opening and arranged in the sealing plate, a rotating rod is rotatably arranged in the circular groove, the right end of the rotating rod is fixedly connected with a connecting shaft, a bevel gear cavity is arranged in the inner wall of the right side of the circular groove, a driving bevel gear is rotatably arranged in the bevel gear cavity, the right end of the connecting shaft is fixedly connected with the driving bevel gear, driven bevel gears are symmetrically arranged at the front end and the rear end of the driving bevel gear and are meshed with each other, one ends of the driven bevel gears, far away from the driving bevel gear, are fixedly connected with cam shafts, grooves are symmetrically arranged in the inner walls of the front side and the rear side of the bevel gear cavity and have right openings, the two cams are respectively rotatably arranged in the grooves at the two sides, one ends of the two cam shafts, far away from the driving bevel, at the moment, the rotating rod is rotated, the sliding plate drives the driving bevel gear to rotate, the driven bevel gear is further driven to rotate, the cam shaft drives the cam to rotate, the sliding plate is further pushed to slide rightwards, the sliding plate drives the connecting rod to slide rightwards, the connecting rod slides along the limiting cavity at the moment, the connecting plate cannot slide at the moment, the transmission ratio between the rotating rod and the cam is one, and after the cam rotates for a circle, the sealing plate is separated from the sliding plate.

But preferably, what communicate in the circular recess upside inner wall is equipped with the spring groove, the spring groove with it is equipped with the draw-in groove to slide between the circular recess, the draw-in groove upper end with compression spring has been linked firmly between the spring groove upside inner wall, be equipped with opening and upwards just open prorsad draw-in groove in the dwang, the fixture block slides in the draw-in groove and block the dwang.

The invention has the beneficial effects that: the box body is cooled in a heat conduction and heat exchange mode, so that the normal operation of the transformer is guaranteed, the sealing plate and the box body are not in direct contact with the transformer, the connecting plate and the sliding plate during the operation of the transformer, the leakage of electricity when the transformer fails can be avoided, the box body and the sealing plate are electrically conducted, and the electric shock accident is avoided.

Drawings

For ease of illustration, the invention is described in detail by the following specific examples and figures.

Fig. 1 is a schematic view of the overall structure of a safe isolated electric distribution box according to the present invention;

FIG. 2 is a schematic view of the structure in the direction "A-A" of FIG. 1;

FIG. 3 is a schematic view of the structure in the direction "B-B" of FIG. 1;

FIG. 4 is an enlarged schematic view of "C" of FIG. 1;

FIG. 5 is a schematic view in the direction "D" of FIG. 1;

fig. 6 is an enlarged schematic view of "E" of fig. 4.

Detailed Description

The invention will now be described in detail with reference to fig. 1-6, for ease of description, the orientations described below will now be defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The invention relates to a safe isolated distribution box, which comprises a box body 23, wherein a cavity 24 with a left opening is arranged in the box body 23, a connecting device 101 is arranged in the cavity 24, two connectors 26 are fixedly arranged on the inner wall of the right side of the cavity 24, the left end of each connector 26 is connected with a transformer 28 in the connecting device 101, the right end of each connector 26 is electrically connected with a wire bundle 25, one wire bundle 25 inputs high-voltage current into the transformer 28, the other wire bundle 25 outputs low-voltage current from the transformer 28, high-voltage current step-down distribution is completed through the two wire bundles 25, the two connectors 26 and the transformer 28, a sealing plate 11 is arranged on the left side of the box body 23 in a sliding mode, sliding rods 42 are fixedly connected to the right end of the sealing plate 11 in an up-down symmetrical mode, guide holes 29 with a left opening are arranged in the box body, the right end of the sliding rod 42 extends into the guide hole 29 and is slidably connected to the box body 23, the sliding rod 42 is engaged with the connecting device 101 to push the sealing plate 11 to slide rightwards and drive the sliding rod 42 to slide rightwards, so that the transformer 28 is driven to slide rightwards through engagement connection and is connected with the joint 26, the isolating device 100 is arranged in the sealing plate 11, two cams 14 are rotatably arranged in the isolating device 100, when the sealing plate 11 closes the cavity 24, the isolating device 100 is manually driven and the connecting device 101 is pushed by the two cams 14, so that the connecting device 101 is separated from the sealing plate 11, the connecting device 101 is prevented from electric leakage and conducting electricity to the sealing plate 11 when in failure, and heat conducting plates 38 and insulating plates 39 are fixedly arranged in the inner walls of the upper side and the lower side of the cavity 24 and the inner wall of the right side of the cavity 24, insulation board 39 avoids connecting device 101 is right during the electric leakage box 23 is electrically conductive, heat-conducting plate 38 can with the heat that connecting device 101 during operation produced passes through box 23 conducts away, box 23 upper end has linked firmly air pump 21, air pump 21 with the intercommunication is equipped with trachea 22 between cavity 24, starts air pump 21, through trachea 22 will air in the cavity 24 with the outer air of box 23 exchanges, and then it is right temperature in the cavity 24 cools down.

According to the embodiment, the connecting device 101 is described in detail below, the connecting device 101 includes a connecting plate 30 fixedly connected to the left end of the transformer 28, a sliding plate 31 is slidably disposed on the left side of the connecting plate 30, four connecting rods 37 are annularly distributed and fixedly connected to the right end of the sliding plate 31, four limiting cavities 40 are disposed in the connecting plate 30, the right ends of the connecting rods 37 extend into the limiting cavities 40 and slide along the limiting cavities 40, racks 43 are fixedly connected to the upper and lower ends of the limiting cavities 40, a small gear 41 and a large gear 44 are engaged and connected between the racks 43 on both sides and the sliding rods 42 on both sides, the sealing plate 11 is pushed rightward to drive the sliding rods 42 to slide rightward, and the racks 43 are driven by the small gear 41 and the large gear 44 to slide rightward, thereby driving the connecting plate 30 to slide rightward, and further driving the transformer 28 to slide rightward and be connected to the joint 26, at the same time, the connecting plate 30 drives the sliding plate 31 to slide into the cavity 24 through the connecting rod 37.

Advantageously, two interfaces 27 are provided in the transformer 28, and the transformer 28 is connected to the two connectors 26 through the two interfaces 27, respectively.

Beneficially, a straight gear cavity 45 is provided between the guide hole 29 and the cavity 24, the pinion 41 and the gearwheel 44 are rotatably disposed in the straight gear cavity 45, the pinion 41 is engaged with the sliding rod 42, the gearwheel 44 is engaged with the rack 43, and the pinion 41 is engaged with the gearwheel 44, the sliding rod 42, the pinion 41, the gearwheel 44 and the rack 43 are in reduction transmission, that is, the sliding speed of the sealing plate 11 is greater than the sliding speed of the connecting plate 30, and the sliding rod 42, the pinion 41, the gearwheel 44 and the rack 43 are in unidirectional transmission, that is, when the sliding rod 42 slides as a driving member, the rack 43 can be driven to slide by the pinion 41 and the gearwheel 44.

Advantageously, the sliding plate 31 is provided with pull grooves 36 with opposite openings, which are symmetrical back and forth, and a finger can be inserted into the pull grooves 36 to facilitate manual pulling of the sliding plate 31, and thus the connecting plate 30 and the transformer 28 can be pulled out.

According to the embodiment, the isolating device 100 is described in detail below, the isolating device 100 includes a circular groove 12 with a left opening and disposed in the sealing plate 11, a rotating rod 15 is rotatably disposed in the circular groove 12, a connecting shaft 46 is fixedly connected to a right end of the rotating rod 15, a bevel gear cavity 32 is disposed in a right inner wall of the circular groove 12, a driving bevel gear 33 is rotatably disposed in the bevel gear cavity 32, a right end of the connecting shaft 46 is fixedly connected to the driving bevel gear 33, driven bevel gears 34 are symmetrically disposed at front and rear ends of the driving bevel gear 33 and are engaged with each other, a cam shaft 13 is fixedly connected to an end of the driven bevel gear 34 away from the driving bevel gear 33, a groove 20 is symmetrically disposed in front and rear inner walls of the bevel gear cavity 32 and has a right opening, two cams 14 are respectively rotatably disposed in the grooves 20 at two sides, and ends of two cam shafts 13 away from the driving bevel, when the right end of the sealing plate 11 abuts against the box body 23, the right end of the sealing plate 11 contacts with the sliding plate 31, the rotating rod 15 is rotated at the moment, the sliding plate 31 drives the driving bevel gear 33 to rotate, the driven bevel gear 34 to rotate, the cam shaft 13 drives the cam 14 to rotate, the sliding plate 31 is pushed to slide rightwards, the sliding plate 31 drives the connecting rod 37 to slide rightwards, the connecting rod 37 slides along the limiting cavity 40 at the moment, the connecting plate 30 cannot slide at the moment, the transmission ratio between the rotating rod 15 and the cam 14 is one, and after the cam 14 rotates for one circle, the sealing plate 11 is separated from the sliding plate 31.

Beneficially, the circular groove 12 is internally provided with a spring groove 19 in the upper inner wall thereof, a clamping groove 16 is slidably arranged between the spring groove 19 and the circular groove 12, a compression spring 18 is fixedly connected between the upper end of the clamping groove 16 and the upper inner wall of the spring groove 19, a clamping groove 16 with an upward opening and a forward opening is arranged in the rotating rod 15, and the clamping block 17 slides into the clamping groove 16 and clamps the rotating rod 15.

The following detailed description of the steps of using a safe insulated switchgear herein is provided in conjunction with fig. 1-6:

initially, the sealing plate 11 and the box body 23 are away from each other, the sliding plate 31 is located outside the cavity 24, the rack gear 44 and the rack gear 43 are not engaged yet, the transformer 28 and the connector 26 are not connected, and the latch 17 is clamped into the slot 16.

When the sealing plate is used, a finger extends into the pull groove 36, the sliding plate 31 is pushed rightwards, the connecting plate 30 and the transformer 28 are pushed to slide rightwards through the connecting rod 37, until the large gear 44 and the rack 43 are meshed, the transformer 28 is not connected with the joint 26 at the moment, the sealing plate 11 is pushed rightwards at the moment, the sliding rod 42 is driven to slide rightwards, the rack 43 is driven to slide rightwards through the small gear 41 and the large gear 44, the connecting plate 30 is driven to slide rightwards, the transformer 28 is driven to slide rightwards, the sliding plate 31 is driven to slide rightwards through the connecting rod 37 when the connecting plate 30 slides rightwards, the connecting rod 37 abuts against the inner wall of the left side of the limiting cavity 40 at the moment, when the right end of the sealing plate 11 abuts against the box body 23, the sealing plate 11 seals the cavity 24.

At this moment, the rotating rod 15 rotates counterclockwise, and then the driving bevel gear 33 is driven to rotate through the connecting shaft 46, and then the driven bevel gear 34 is driven to rotate, and then the cam 14 is driven to rotate through the cam shaft 13, and then the sliding plate 31 is pushed to slide rightwards, and then the connecting rod 37 is driven to slide rightwards, at this moment, the connecting rod 37 slides along the limiting cavity 40, at this moment, the connecting plate 30 cannot slide, after the rotating rod 15 rotates for one circle, the clamping block 17 is clamped into the clamping groove 16 again under the elastic force action of the compression spring 18, at this moment, the cam 14 just rotates for one circle, at this moment, the cam 14 is separated.

At this time, the wire bundle 25 is electrified, and voltage reduction and power distribution are performed through the transformer 28, the air pump 21 is started, and then the air in the cavity 24 and the air outside the box body 23 are exchanged and exchanged through the air pipe 22, so that the temperature in the cavity 24 is reduced, and meanwhile, the heat in the cavity 24 can be conducted out through the box body 23 by the heat conduction plate 38.

When the transformer 28 fails, the insulation plate 39 prevents the box 23 from conducting electricity, the sliding plate 31 is not in contact with the sealing plate 11, the sealing plate 11 is not conducting electricity, the sealing plate 11 is pulled leftwards, the connecting plate 30 is driven to slide leftwards through transmission among the sliding rod 42, the pinion 41, the bull gear 44 and the rack 43, the transformer 28 is driven to slide leftwards and is disconnected from the joint 26, the sliding plate 31 slides out of the cavity 24, the sliding plate 31, the connecting plate 30 and the transformer 28 can be pulled out, and the transformer 28 can be overhauled.

In the above manner, a person skilled in the art can make various changes depending on the operation mode within the scope of the present invention.

Claims

1. The utility model provides a safe isolated block terminal, includes the box, its characterized in that: a cavity with a leftward opening is formed in the box body, a connecting device is arranged in the cavity, two connectors are fixedly arranged on the inner wall of the right side of the cavity, the left end of each connector is connected to a transformer in the connecting device, and the right end of each connector is electrically connected with a wire bundle; a sealing plate is arranged on the left side of the box body in a sliding mode, sliding rods are fixedly connected to the right end of the sealing plate in an up-down symmetrical mode, guide holes with left openings are formed in the box body in an up-down symmetrical mode, the right end of each sliding rod extends into the corresponding guide hole and is connected to the box body in a sliding mode, and the sliding rods are connected with the connecting device in a meshing mode; an isolating device is arranged in the sealing plate, two cams are rotationally arranged in the isolating device, the isolating device is manually driven, and the connecting device is pushed by the two cams; heat conducting plates and insulating plates are fixedly arranged on the inner walls of the upper side and the lower side of the cavity and the inner wall of the right side of the cavity, the insulating plates prevent the connecting device from conducting electricity to the box body when electricity leaks, and the heat conducting plates can conduct heat generated by the connecting device during working out through the box body; the upper end of the box body is fixedly connected with an air pump, and an air pipe is communicated between the air pump and the cavity.

2. A safe isolated power distribution box according to claim 1, wherein: the connecting device comprises a connecting plate fixedly connected to the left end of the transformer, a sliding plate is arranged on the left side of the connecting plate in a sliding mode, four connecting rods are distributed at the right end of the sliding plate in an annular array mode and fixedly connected, four limiting cavities are formed in the connecting plate, and the right ends of the connecting rods extend into the limiting cavities and slide along the limiting cavities; the upper end and the lower end of the limiting cavity are fixedly connected with racks, and the racks on the two sides and the sliding rods on the two sides are connected with a pinion and a bull gear in a meshed mode.

3. A safe isolated power distribution box according to claim 2, wherein: two interfaces are arranged in the transformer.

4. A safe isolated power distribution box according to claim 2, wherein: the guiding hole with the intercommunication is equipped with the straight-teeth gear chamber between the cavity, the pinion with the gear wheel rotates and locates the straight-teeth gear intracavity, the pinion with the slide bar meshing is connected, the gear wheel with the rack toothing is connected, and the pinion with the gear wheel meshes mutually.

5. A safe isolated power distribution box according to claim 2, wherein: the sliding plate is internally provided with pull grooves with back-to-back openings symmetrically.

6. A safe isolated power distribution box according to claim 1, wherein: the isolating device comprises a circular groove with a left opening and arranged in the sealing plate, a rotating rod is rotatably arranged in the circular groove, the right end of the rotating rod is fixedly connected with a connecting shaft, a bevel gear cavity is arranged in the inner wall of the right side of the circular groove, a driving bevel gear is rotatably arranged in the bevel gear cavity, and the right end of the connecting shaft is fixedly connected with the driving bevel gear; the front end and the rear end of the driving bevel gear are symmetrically provided with driven bevel gears in a meshed manner, and one ends of the driven bevel gears, which are far away from the driving bevel gear, are fixedly connected with cam shafts; symmetrical and opening right in the both sides inner wall is equipped with the recess around the bevel gear chamber, two the cam rotates respectively and locates both sides in the recess, two the camshaft is kept away from drive bevel gear one end links firmly respectively in both sides the cam.

7. A safe isolated power distribution box according to claim 6, wherein: a spring groove is communicated with the inner wall of the upper side of the circular groove, a clamping groove is arranged between the spring groove and the circular groove in a sliding manner, and a compression spring is fixedly connected between the upper end of the clamping groove and the inner wall of the upper side of the spring groove; a clamping groove with an upward opening and a forward opening is formed in the rotating rod.