CN207409876U - New rural low-voltage distribution box - Google Patents

Abstract

The utility model discloses a low-voltage power distribution box for rural power grids, which comprises a stainless steel box body; the inside of the stainless steel box body is formed by a T-shaped partition plate to form an incoming line warehouse, an outgoing line warehouse and an isolation warehouse; the front of the incoming line warehouse The side is hinged with an inlet door; the front side of the outlet compartment is hinged with an outlet door; the outer bottom of the inlet compartment and the outlet compartment are respectively provided with locking nuts; the inner bottom of the inlet compartment is fixed with a three-phase lock nut. Inlet column; the bottom of the inner side of the outlet bin is fixed with a three-phase outlet column facing the locking nut; the inner side of the inlet bin is fixed with a first electrical guide rail and a second electrical guide rail; the low-voltage power distribution box for rural power grids of the utility model, By setting the grounding knife switch in the outlet compartment, there is no need to install a working ground on the tower on the outlet side, which avoids the safety hazards of climbing operations. In addition, when performing internal maintenance, the inlet door and outlet door can be linked to avoid the risk of electric shock.

Description

New rural low-voltage distribution box

technical field

The utility model relates to a distribution box for a rural network, in particular to a novel low-voltage distribution box for a rural network, and belongs to the technical field of distribution boxes for a rural network.

Background technique

With the continuous development of society, the demand for electricity in vast rural areas is increasing, and the requirements for power quality are getting higher and higher; there are many types of low-voltage distribution cabinets for rural power grids, such as Chinese patent application number: 201720122046.X , discloses a power distribution cabinet for rural power grids, including a cabinet body, a sliding sleeve is provided at the connection between the cabinet body and the two side panels, a cylindrical channel is processed on the sliding sleeve, and a supporting pole is slidingly provided in the cylindrical channel , the bottom end of the supporting pole is fixedly installed on the fixing seat, and the fixing seat is installed on the end of the base through fixing bolts. The lower part of the supporting pole is provided with a shock-absorbing spring. The first shock-absorbing seat and the second shock-absorbing seat are respectively arranged, and a cavity is also processed on the bottom plate of the cabinet body, and a heat dissipation fan is arranged in the cavity. A support plate is also provided through the No. 2 pole frame, a slant plate is fixedly arranged on the support plate, and a solar panel is installed on the surface of the slant plate; the utility model has simple structure, reasonable design, good heat dissipation effect, and good shock resistance at the same time, making The service life of the power distribution cabinet is extended, which has high practical value; at present, when the low-voltage line of the rural power grid is under power outage maintenance, it is necessary to install a working grounding pair on the outgoing line tower, and there are safety hazards such as falling from high altitudes and misoperation during climbing operations; And when the low-voltage power distribution cabinet is overhauled, it is easy to cause the risk of electric shock. Therefore need to propose improvement.

Utility model content

The purpose of the utility model is to provide a new low-voltage power distribution box for rural power grids to overcome the deficiencies in the prior art.

In order to achieve the above object, the utility model provides the following technical solutions:

The embodiment of this application discloses a new type of low-voltage power distribution box for rural power grids, which includes a stainless steel box body; the inner side of the stainless steel box body is formed by a T-shaped partition plate to form an incoming wire compartment, an outgoing wire bin, and an isolation bin; the incoming wire The front side of the warehouse is hinged with an inlet door; the front side of the outlet warehouse is hinged with an outlet door; the outer bottom of the inlet warehouse and the outlet warehouse are respectively provided with lock nuts; the inner bottom of the inlet warehouse is fixed against the lock nut There are three-phase incoming wire columns; the inner bottom of the outlet compartment is fixed to the locking nut with a three-phase outlet column; the inner side of the inlet bin is fixed with a first electrical guide rail and a second electrical guide rail; the first electrical guide rail is installed with The first fuse piece electrically connected to the three-phase incoming line column; the linkage manual integrated switch electrically connected to the output end of the first fuse piece is installed on the second electric rail; the linkage manual switch is installed inside the isolation compartment. The copper bar electrically connected with the integrated switch; the third electric guide rail, the fourth electric guide rail and the fifth electric guide rail are installed on the inner side of the outlet compartment; a circuit breaker electrically connected to the copper bar is installed on the third electric guide rail; The output end of the circuit breaker is electrically connected to the second fuse element installed on the fourth electrical rail; the output end of the second fuse element is connected to the three-phase outlet column; the output end of the second fuse element is connected to a linkage A manual grounding switch; the output terminal of the linkage manual grounding switch is electrically connected to the ground terminal.

Preferably, in the aforementioned low-voltage power distribution box for rural power grids, the linked manual integrated switch includes a first box body; and a first Electric control switch; both ends of the first electric control switch are connected with manual switch blades; the electric control end of the first electric control switch passes through the control module and the first stroke installed between the incoming line compartment and the incoming line door switch.

Preferably, in the above-mentioned new low-voltage power distribution box for rural power grids, the linkage manual grounding switch includes a second box body; a second electric control switch is installed inside the second box body; one end of the second electric control switch It is electrically connected to the second fuse element, and its other end is electrically connected to the ground end through the grounding switch; the electric control end of the second electric control switch passes through the control module and the second travel switch installed between the outlet bin and the outlet door .

Preferably, in the above-mentioned low-voltage distribution box of the new rural network, the grounding switch is a grounding knife switch.

Compared with the prior art, the utility model has the advantages that: the new low-voltage power distribution box for rural power grid of the utility model, by setting the grounding knife switch in the outgoing line warehouse, does not need to install the working grounding on the outgoing line side pole tower, avoiding the climbing operation In addition, when performing internal maintenance, the incoming line door and outgoing line door can be linked to avoid the risk of electric shock.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments described in this application. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a schematic structural diagram of a new rural low-voltage power distribution box in a specific embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a linked manual integrated switch and a linked manual grounding switch in a specific embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be described in detail below in conjunction with the drawings in the embodiments of the present invention. Apparently, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Referring to Figures 1 and 2, the new low-voltage power distribution box for rural power grids in this embodiment includes a stainless steel box body 1; the inner side of the stainless steel box body 1 forms an incoming wire compartment 3, The outlet bin 4 and the isolation bin 5; the front side of the inlet bin 3 is hinged with an inlet door 6; the front side of the outlet bin 4 is hinged with an outlet door 7; the outer bottom of the inlet bin 4 and the outlet bin 5 are respectively arranged There is a locking wire nut 8, through which the incoming and outgoing wires can be positioned and locked, and at the same time, water vapor can be prevented from entering and causing an internal short circuit; the inner bottom of the incoming wire compartment 3 is fixed with a three-phase inlet Line column 9; the bottom of the inner side of the outlet bin 4 is facing the lock nut and fixed with a three-phase outlet column 10; and the second electrical guide rail 12 can facilitate the sliding and locking installation of electrical components to ensure installation reliability; the first electrical guide rail 11 is equipped with a first fuse element 13 electrically connected to the three-phase incoming line column; A linkage manual integrated switch 14 electrically connected to the output end of the first fuse element is installed on the electric guide rail 12; a copper bar 15 electrically connected to the linkage manual integrated switch is installed on the inner side of the isolation warehouse 5, and the isolation warehouse 5 can be well Electromagnetically isolate the external electrical components; the third electrical guide rail 16, the fourth electrical guide rail 17 and the fifth electrical guide rail 18 are installed on the inner side of the outlet bin 4; connected circuit breaker 19; the output end of the circuit breaker 19 is electrically connected to the second fuse element 20 installed on the fourth electric rail; the output end of the second fuse element 20 is connected to the three-phase outlet column 10; the The side of the output end of the second fuse element 20 is connected with a linkage manual grounding switch 21; the output end of the linkage manual grounding switch 21 is electrically connected to the ground terminal; For open circuit and bypass, when a certain phase needs to be inspected, just close the manual switch or the grounding switch; when the low-voltage line of the rural power grid is powered off for maintenance, the grounding can be completed through the grounding switch, without the need for a pole on the outlet side The installation work is grounded, avoiding the safety hazards of climbing operations.

Further, the linked manual integrated switch 14 includes a first box body 141; and a first electric control switch 142 installed inside the first box body 141 and electrically connected to the first fuse element and the copper bar; the first The two ends of the electric control switch 142 are connected with a manual switch 143; the electric control end of the first electric control switch 142 passes through the control module 144 and the first travel switch 145 installed between the incoming wire compartment and the incoming wire door; When the incoming line door is opened, the second travel switch detects the signal and transmits the signal to the control module, and the control module sends the signal to the first electric control switch, and the first electric control switch completes the three-phase open circuit; the initial state of the manual switch knife is opening and closing Status; when a certain phase is required to detect the electrical connection, directly close a certain path of manual switch detection.

Further, the linked manual grounding switch 21 includes a second box body 211; a second electric control switch 212 is installed inside the second box body 211; one end of the second electric control switch 212 is connected to the second fuse element 20 Electrically connected, the other end of which is electrically connected to the ground terminal through the grounding switch 213; the electric control end of the second electric control switch 212 passes through the control module 144 and the second stroke switch 214 installed between the outlet bin and the outlet door; When the outlet door is opened, the second travel switch detects the signal, and transmits the signal to the control module, and the control module sends the signal to the second electric control switch, and the second electric control switch completes the three-phase grounding; the initial state of the grounding switch is closed; When a certain phase disconnection grounding detection is required, directly disconnect a certain grounding switch for detection.

Further, the grounding switch 213 is a grounding switch.

To sum up, the new rural low-voltage power distribution box of the utility model, by setting the grounding knife switch in the outgoing line warehouse, does not need to install the working grounding on the outgoing line side pole tower, which avoids the safety hazards of climbing operations. In addition, when performing internal During maintenance, the incoming line door and outgoing line door can be linked to avoid the risk of electric shock.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

The above description is only the specific implementation of the present application. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present application, some improvements and modifications can also be made. It should be regarded as the protection scope of this application.

Claims (4)

1. a kind of Rural Low-Voltage Power Network distribution box, it is characterised in that：Including stainless steel babinet；The stainless steel box inside passes through a T The partition panel of type structure forms inlet wire storehouse, outlet storehouse and isolation cabin；Inlet wire door is hinged on front side of the inlet wire storehouse；The outlet storehouse Front side is hinged with outlet door；The inlet wire storehouse and outlet storehouse exterior bottom are respectively arranged with locking wire nut；On the inside of the inlet wire storehouse Bottom face locking wire nut is fixed with three-phase into terminal；The outlet storehouse inside bottom face locking wire nut is fixed with three-phase outlet Column；The first electrical guide rail and the second electrical guide rail are fixed on the inside of the inlet wire storehouse；Be equipped on first electrical guide rail with The first fuse part that three-phase is electrically connected into terminal；It is equipped on second electrical guide rail and is electrically connected with the first fuse part output terminal The manual integral switch of linkage；The copper bar being electrically connected with the manual integral switch that links is installed on the inside of the isolation cabin；It is described go out The 3rd electrical guide rail, the 4th electrical guide rail and the 5th electrical guide rail are installed on the inside of line storehouse；It is installed on 3rd electrical guide rail There is the breaker being electrically connected with copper bar；The breaker output terminal, which is electrically connected to, is installed on the second fuse on the 4th electrical guide rail Part；The second fuse part output terminal is connected to three-phase outlet column；The second fuse part output terminal avris is connected with linked hand Dynamic earthing switch；The manual earthing switch output terminal of linkage is electrically connected to ground terminal.

2. Rural Low-Voltage Power Network distribution box according to claim 1, it is characterised in that：The manual integral switch of the linkage includes the One box body；And it is installed on the first electric-controlled switch being electrically connected on the inside of the first box body and with the first fuse part and copper bar；Described first Electric-controlled switch both ends are simultaneously connected to manual plug-in strip；Its automatically controlled end of first electric-controlled switch is by control module and is installed on inlet wire storehouse The first travel switch between inlet wire door.

3. Rural Low-Voltage Power Network distribution box according to claim 1, it is characterised in that：The manual earthing switch of the linkage includes the Two box bodys；The second electric-controlled switch is installed on the inside of second box body；Described second electric-controlled switch one end and the second fuse part electricity Connection, the other end are electrically connected to ground terminal by earthing switch；Its automatically controlled end of second electric-controlled switch by control module with The second travel switch being installed between outlet storehouse and outlet door.

4. Rural Low-Voltage Power Network distribution box according to claim 3, it is characterised in that：The earthing switch is grounding switch.