CN217522628U

CN217522628U - Emergency power supply quick access low-voltage molded case circuit breaker

Info

Publication number: CN217522628U
Application number: CN202221542317.4U
Authority: CN
Inventors: 游鹏; 谭庆; 张弘毅; 金含研; 唐远; 李敏; 管凌葳; 邓健; 但惠
Original assignee: State Grid Sichuan Electric Power Co Ltd
Current assignee: State Grid Sichuan Electric Power Co Ltd
Priority date: 2022-06-20
Filing date: 2022-06-20
Publication date: 2022-09-30
Anticipated expiration: 2032-06-20

Abstract

The utility model discloses an emergency power source inserts low pressure moulded case circuit breaker fast, including circuit breaker body and quick-operation connector: the circuit breaker body includes: a disconnect device and a connecting bus; one end of the connecting bus is connected with the cut-off device, and the other end of the connecting bus extends out of the cut-off device to be connected with the quick connector. The circuit breaker body and the quick connector are integrated together, the wire outlet bolt connecting portion is omitted, the wire outlet is connected with the load through the quick connector connected with the bus, the low-voltage molded case circuit breaker can be directly connected into the emergency power supply, the connection speed is increased, and the integration of functions is achieved. The low-voltage molded case circuit breaker after fusing fuses the original quick access block terminal function in low-voltage molded case circuit breaker, and the access of the case of being convenient for becomes car and portable power source car greatly shortens the power off time, for promoting 0.4kV operation that does not have a power failure, lays down good operation basis.

Description

Emergency power supply quick access low-voltage molded case circuit breaker

Technical Field

The utility model relates to a moulded case circuit breaker technical field, concretely relates to emergency power source inserts low pressure moulded case circuit breaker fast.

Background

Low-voltage moulded case circuit breaker is as the key equipment in the distribution network platform district, and current electric wire netting 0.4kV live working promotes fast, for satisfying equipment such as its emergency power source car, mobile energy storage car and insert fast, realizes the demand that the low-voltage overhaul does not have a power failure. The speed, the safety and the convenience of the plastic shell breaker access have very important significance for reducing the power failure time and improving the maintenance efficiency and the safety. The current low-voltage molded case circuit breaker can be accessed only in a bolt connection mode, the space in the low-voltage distribution box is narrow, the access speed is low, and the access operation is complex, so that the power failure time is long.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that low pressure moulded case circuit breaker adopts bolted connection mode to insert speed slowly, inserts the operation complicacy, and aim at provides an emergency power source inserts low pressure moulded case circuit breaker fast, links together quick connector through connecting bus and cut-off device, fuses circuit breaker body and quick connector, can directly insert a low pressure moulded case circuit breaker emergency power source, simplifies the operation of inserting, improves the access speed, reduces the power off time at the access in-process.

The utility model discloses a following technical scheme realizes:

the utility model provides an emergency power source inserts low-voltage moulded case circuit breaker fast, includes circuit breaker body and quick-operation connector:

the circuit breaker body includes: a disconnect device and a connecting bus;

one end of the connecting bus is connected with the cut-off device, and the other end of the connecting bus extends out of the cut-off device to be connected with the quick connector.

The utility model discloses a set up circuit breaker body and quick connector: the circuit breaker body includes: a disconnect device and a connecting bus; one end of the connecting bus is connected with the cut-off device, and the other end of the connecting bus extends out of the cut-off device to be connected with the quick connector. Fuse the circuit breaker body and the quick connector together, do not have the bolted connection portion of being qualified for the next round of competitions, the quick connector who adopts and the generating line to be connected of being qualified for the next round of competitions inserts the load, can improve the access speed with low-voltage moulded case circuit breaker direct access platform emergency power supply, realizes the integration of function, reduces the power off time at the access in-process.

Furthermore, the connecting buses are arranged in at least three rows, the connecting buses are arranged in parallel, the length of the middle connecting bus is larger than that of the connecting buses on the two sides, a connecting hole is formed in each connecting bus, and the central point connecting lines of the three connecting holes form a triangle. The connecting holes are arranged in a triangular arrangement mode by adopting two short and one long arrangement, so that the installation stability is ensured under the condition of not increasing the volume of the device.

Furthermore, the quick connector comprises a fixing rod and a connector body, one end of the fixing rod is connected with the connector body, the other end of the fixing rod penetrates through the connecting hole, and a clamping piece is arranged at the connecting position of the fixing rod and the connecting hole. The clamping piece is a nut arranged on two sides of the connecting hole, and the nut is matched with the fixing rod. The fixing rod is fixed on the connecting bus through the connecting hole, the nuts are arranged on two sides of the connecting hole, the nuts are matched with the fixing rod to guarantee fixing stability, and meanwhile, the fixing rod is convenient to unload.

Further, the circuit breaker body still includes base and last casing, the cutting device sets up on the base, base and last casing enclose together and form a cavity that is used for holding quick-operation connector. Make quick connector set up in base and epitheca through the cavity that sets up, guarantee stability.

Furthermore, the upper shell is provided with a through hole corresponding to the connecting hole, and the aperture of the through hole is matched with the outer diameter of the quick connector. The through holes are arranged, so that the quick connector can be conveniently connected and detached, and meanwhile, the connecting port of the quick connector is conveniently connected with the emergency power supply.

Further, one end of the quick connector, which is far away from the connecting bus, is provided with a protective cover. The protective cover comprises a cover body and a seat body, the seat body is fixedly connected with the quick connector, and the cover body is movably connected with one side of the seat body. The line diameter of the protective cover is larger than the aperture of the through hole. Through setting up the protective cover, the lid activity of protective cover sets up, protects quick connector's connector, opens the lid and conveniently connects when needs are connected. The line footpath of protective cover is greater than the through-hole aperture, guarantees quick connector's connector setting in last casing department, guarantees quick connector's stability, efficiency when guaranteeing to connect.

Further, the base comprises a first base body and a second base body, the disconnecting device is arranged on the first base body, the second base body is arranged in parallel with the connecting bus, and the first base body is detachably connected with the second base body. Through setting up the second pedestal that can dismantle the connection with first pedestal, after quick connector's nut and dead lever are fixed, be connected second pedestal and first pedestal again, the access of the quick connector of being convenient for.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

1. the quick connector is connected with the cut-off device through the connecting bus, so that the low-voltage molded case circuit breaker can be directly connected to an emergency power supply, the connection operation is simplified, the connection speed is increased, and the power failure time is reduced in the connection process;

2. the connecting holes are arranged in a triangular mode by adopting two short and one long arrangement, so that the installation stability is ensured under the condition of not increasing the volume of the device;

3. the second base body is arranged to be detachably connected, so that the fixing of the fixing rod of the quick connector is facilitated.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

fig. 1 is a side view of an embodiment of the invention;

fig. 2 is a front view of an embodiment of the invention;

fig. 3 is a front view of an unaccessed quick connector in an embodiment of the invention;

fig. 4 is a rear view of an embodiment of the invention;

fig. 5 is a schematic structural diagram of the quick connector according to an embodiment of the present invention.

Reference numbers and corresponding part names in the drawings:

1-breaking device, 2-connecting bus, 21-connecting hole, 3-quick connector, 31-fixing rod, 32-connector body, 33-clamping piece, 34-protective cover, 4-base, 41-first seat body, 42-second seat body, 5-upper shell body and 51-through hole.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.

Example 1

As shown in fig. 1-4, this embodiment 1 provides an emergency power source fast access low-voltage molded case circuit breaker, which includes a circuit breaker body and a fast connector 3:

the circuit breaker body includes: a disconnecting device 1 and a connecting bus 2;

one end of the connecting bus 2 is connected with the cut-off device 1, and the other end of the connecting bus 2 extends out of the cut-off device 1 to be connected with the quick connector 3.

Fuse circuit breaker body and quick connector 3 together, the bolted connection portion of being qualified for the next round of competitions does not have, and the quick connector 3 that the adoption of being qualified for the next round of competitions is connected with the generating line inserts the load, can improve the access speed with low-voltage moulded case circuit breaker direct access platform emergency power supply, realizes the integration of function, reduces the power off time at the access in-process. Low-voltage moulded case circuit breaker after fusing, will originally insert the block terminal function fast and fuse in low-voltage moulded case circuit breaker, the shared space after greatly having reduced the access process and having accessed, can arrange in block terminal or secondary distribution box are synthesized in the distribution station district, can replace the former low-voltage moulded case circuit breaker of installing in the low-voltage distribution box, reserve quick access port for the trouble is not cut off power supply, the access of the case of being convenient for becomes car and portable power source car, greatly shorten power off time, for promoting 0.4kV operation that does not cut off power supply, lay down good operation basis.

In some possible embodiments, at least three connecting busbars 2 are arranged, three connecting busbars 2 are arranged side by side, the length of the connecting busbar 2 in the middle is greater than the lengths of the connecting busbars 2 on two sides, each connecting busbar 2 is provided with a connecting hole 21, and the connecting lines of the central points of the three connecting holes 21 form a triangle. The connecting holes 21 are arranged in a triangular arrangement mode by adopting two short and one long arrangement, so that the installation stability is ensured under the condition of not increasing the volume of the device. The quick connector 3 comprises a fixing rod 31 and a connector body 32, one end of the fixing rod 31 is connected with the connector body 32, the other end of the fixing rod 31 penetrates through the connecting hole 21, and a clamping piece 33 is arranged at the joint of the fixing rod 31 and the connecting hole 21. The fastening member 33 is a nut provided at both sides of the coupling hole 21 and engaged with the fixing rod 31. By fixing the fixing rod 31 on the connecting bus bar 2 through the connecting hole 21 and arranging nuts on both sides of the connecting hole 21, the nuts are matched with the fixing rod 31 to ensure the stability of fixing and simultaneously facilitate unloading. The aperture of the connecting hole 21 is smaller than the outer diameter of the plugging port of the quick connector 3, the quick connector 3 is connected with the connecting bus 2 through the quick connector 3, and the quick connector 3 is firmly fixed by the constraint of the connecting hole 21. Through improving original adoption moulded case switch + female extension of arranging of low pressure + quick connecting device's access mode, reduce the space that access device occupied platform district block terminal, reduce the restriction to the volume of block terminal and function configuration.

In some possible embodiments, the circuit breaker body further comprises a base 4 and an upper casing 5, the breaking device 1 being arranged on the base 4, the base 4 and the upper casing 5 enclosing together and forming a cavity for housing the quick connector 3. The quick connector 3 is arranged in the base 4 and the upper shell through the arranged cavity, so that the stability is ensured.

In some possible embodiments, the upper housing 5 is provided with a through hole 51 corresponding to the position of the connection hole 21, and the diameter of the through hole 51 is adapted to the outer diameter of the quick connector 3. The through hole 51 is arranged to facilitate the connection and the disassembly of the quick connector 3 and facilitate the connection of the connector of the quick connector 3 and an emergency power supply.

In some possible embodiments, the end of the quick connector 3 remote from the connecting bus bar 2 is provided with a protective cover 34. The protecting cover 34 comprises a cover body and a seat body, the seat body is fixedly connected with the quick connector 3, and the cover body is movably connected with one side of the seat body. The linear diameter of the protective cover 34 is larger than that of the through hole 51. Through setting up protective cover 34, the lid activity of protective cover 34 sets up, and the convenient connection of lid is opened to protection quick connector 3's connector when needs are connected. The line diameter of protective cover 34 is greater than through-hole 51 aperture, guarantees that quick connector 3's connector sets up in last casing 5 department, guarantees quick connector 3's stability, efficiency when guaranteeing to connect. One end of the cover body is movably fixed on the cover body and is equivalent to an opening and closing cover

In some possible embodiments, the base 4 includes a first seat 41 and a second seat 42, the disconnecting device 1 is disposed on the first seat 41, the second seat 42 is disposed parallel to the connecting bus 2, and the first seat 41 is detachably connected to the second seat 42. Through setting up the second pedestal 42 that can dismantle the connection with first pedestal 41, after the nut of quick connector 3 is fixed with dead lever 31, be connected second pedestal 42 with first pedestal 41 again, the access of the quick connector 3 of being convenient for. The second seat 42 is configured as a panel structure, so as to be convenient to detach.

Example 2

The quick connector 3 adopts the quick connector 3 with the rated current of 630A, and is arranged in the shell from the front of the low-voltage molded case circuit breaker, namely the through hole 51 at the upper shell 5 is arranged in the shell, and the quick connector 3 is fixed in the connecting hole 21 on the connecting bus 2 from the second seat 42, the connector with the corresponding model can be configured according to the model of the distribution transformer, and the model can be 400A or 250A and can be arranged in a comprehensive distribution box and a secondary distribution box in different distribution areas.

Example 3

Along with current user's requirement to power supply reliability and high-quality service constantly improves to and low pressure live working technique is becoming more mature, an emergency power source inserts low pressure moulded case circuit breaker fast, can realize user distribution equipment's quick access transformation, and the increase reduces the transformation cost, protects the power supply to important user, realizes that low-cost emergent guarantor power supply inserts the transformation fast, compares in former emergent quick access block terminal, has retrencied equipment mechanism and material, has reduced the probability of appearance body trouble. And powerful power grid foundation guarantee is provided for low-voltage live-line work and power supply reliability of the power distribution network.

The above-mentioned embodiments further describe the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides an emergency power source inserts low-voltage moulded case circuit breaker fast which characterized in that, includes circuit breaker body and quick connector (3):

the circuit breaker body includes: a breaking device (1) and a connecting bus (2);

one end of the connecting bus (2) is connected with the cut-off device (1), and the other end of the connecting bus (2) extends out of the cut-off device (1) to be connected with the quick connector (3).

2. The emergency power quick access low-voltage molded case circuit breaker according to claim 1, wherein the number of the connecting bus bars (2) is at least three, three connecting bus bars (2) are arranged side by side, the length of the middle connecting bus bar (2) is greater than the lengths of the connecting bus bars (2) at two sides, a connecting hole (21) is arranged on each of the three connecting bus bars (2), and the connecting lines of the central points of the three connecting holes (21) form a triangle.

3. The low voltage molded case circuit breaker with quick access to emergency power supply as claimed in claim 2, wherein the quick connector (3) comprises a fixing rod (31) and a connector body (32), one end of the fixing rod (31) is connected with the connector body (32), the other end of the fixing rod (31) is disposed through the connection hole (21), and a clamping member (33) is disposed at the connection position of the fixing rod (31) and the connection hole (21).

4. The quick emergency power supply access low-voltage molded case circuit breaker according to claim 3, wherein the clamping member (33) is a nut disposed at both sides of the connecting hole (21), and the nut is engaged with the fixing rod (31).

5. An emergency power quick-access low-voltage molded case circuit breaker according to claim 1, wherein the circuit breaker body further comprises a base (4) and an upper case (5), the breaking device (1) is arranged on the base (4), and the base (4) and the upper case (5) enclose together and form a cavity for accommodating the quick connector (3).

6. The quick emergency power supply access low-voltage molded case circuit breaker according to claim 5, wherein the upper case (5) is provided with a through hole (51) corresponding to the position of the connecting hole (21), and the aperture of the through hole (51) is adapted to the outer diameter of the quick connector (3).

7. An emergency power quick access low voltage molded case circuit breaker according to claim 1 or 6, characterized in that the end of the quick connector (3) remote from the connecting bus bar (2) is provided with a protective cover (34).

8. The emergency power quick-access low-voltage molded case circuit breaker according to claim 7, wherein the protective cover (34) comprises a cover body and a base body, the base body is fixedly connected with the quick connector (3), and the cover body is movably connected with one side of the base body.

9. The emergency power quick-access low-voltage molded case circuit breaker according to claim 7, wherein the wire diameter of the protective cover (34) is larger than the hole diameter of the through hole (51).

10. An emergency power quick-access low-voltage molded case circuit breaker according to claim 5, wherein the base (4) comprises a first base (41) and a second base (42), the breaking device (1) is disposed on the first base (41), the second base (42) is disposed in parallel with the connecting bus (2), and the first base (41) is detachably connected with the second base (42).