CN114512900A

CN114512900A - Power distribution system

Info

Publication number: CN114512900A
Application number: CN202011273953.7A
Authority: CN
Inventors: 乔嗣健; 宋增强; 安海川; 朱骏杰
Original assignee: Shanghai Liangxin Electrical Co Ltd
Current assignee: Shanghai Liangxin Electrical Co Ltd
Priority date: 2020-11-14
Filing date: 2020-11-14
Publication date: 2022-05-17

Abstract

The invention provides a power distribution system, which belongs to the technical field of low-voltage electrical appliances and comprises a main distribution box provided with a main switch and branch distribution boxes provided with branch switches, wherein the branch distribution boxes comprise a plurality of branch switches, the branch switches in the branch distribution boxes are connected in parallel, and the branch switches connected in parallel are all connected in series with the main switch in the main distribution box; the branch circuit distribution boxes are arranged in a plurality of unit areas provided with loads in a one-to-one correspondence mode, and the branch circuit switches are electrically connected with the loads in the corresponding unit areas. The main switch controls the branch switch, which controls the load of the cell area. The branch circuit distribution box has a plurality ofly, and every unit district sets up a branch circuit distribution box, and each branch circuit distribution box all controls through total distribution box. The corresponding unit area is accurately controlled through the branch distribution box without influencing other unit areas. One unit area corresponds to one branch distribution box, wiring is simple, the used materials of the lines are few, and cost is low; the overall circuit is simple, and the circuit fault is convenient to check when occurring.

Description

Power distribution system

Technical Field

The invention relates to the technical field of low-voltage electrical appliances, in particular to a power distribution system.

Background

As shown in fig. 1, in a distribution line of an existing building, hotel, apartment, school, hospital, industrial building, commercial building, etc., a centralized distribution box 100 for circuit breakers is used, load components (e.g., air conditioners, refrigerators, lighting lamps, etc.) in a plurality of unit areas (e.g., different unit areas such as living room, bedroom, kitchen, balcony, etc.) share one circuit breaker (e.g., 1 electric leakage circuit breaker is shared by sockets in different rooms of a building distribution system), which has the disadvantages that troubleshooting is troublesome when a fault occurs in the distribution line 110, the load components cannot be accurately controlled according to the unit areas, and the distribution line 110 cost (material cost, wiring cost, etc.) is high due to the complexity of the distribution line 110.

Disclosure of Invention

The invention aims to provide a power distribution system which can accurately control the load of each unit area and has low cost.

The embodiment of the invention is realized by the following steps:

one aspect of the embodiments of the present invention provides a power distribution system, which includes a main distribution box provided with a main switch and a branch distribution box provided with branch switches, where the branch distribution box includes a plurality of branch switches, the branch switches in the plurality of branch distribution boxes are connected in parallel, and the plurality of branch switches connected in parallel are all connected in series with the main switch in the main distribution box; the branch circuit distribution boxes are arranged in a plurality of unit areas provided with loads in a one-to-one correspondence mode, and the branch circuit switches are electrically connected with the loads corresponding to the unit areas.

Optionally, a plurality of the branch switches are electrically connected to the main switch through a main line.

Optionally, the main line comprises a plurality of main lines, and each main line is further electrically connected with one or more branch switches.

Optionally, both ends of the main line are respectively electrically connected to the main switch to form a closed-loop line with the main switch.

Optionally, a function switch is further disposed in the main distribution box, and the function switch is electrically connected to the loads with the same function in each of the unit areas.

Optionally, the function switches include a plurality of function switches, loads with the same function in each unit area form a load group, and the plurality of function switches are electrically connected to the corresponding load groups respectively.

Optionally, the load of each unit area is electrically connected with the function switch through a branch line.

Optionally, the main switch includes any one of a circuit breaker, the circuit breaker and a relay, and the circuit breaker and a contactor.

Optionally, the branch switch includes any one of a circuit breaker, a relay, a contactor, the circuit breaker and the relay, the circuit breaker and the contactor.

Optionally, a control panel is disposed on the branch power distribution box and used for controlling the branch switch to be turned on or off.

The embodiment of the invention has the beneficial effects that:

according to the power distribution system provided by the embodiment of the invention, the main switch is arranged in the main power distribution box, the branch switches are arranged in the branch power distribution box and are connected with the loads of the unit areas, the branch switches of the branch power distribution boxes are connected in parallel, the parallel branch switches are all connected in series with the main switch in the main power distribution box, and the branch switches are controlled through the main switch to control the loads of the unit areas. Such branch road cooperation box has a plurality ofly, sets up a branch road block terminal in every unit district, and each branch road block terminal all is through total block terminal control. The corresponding unit area is accurately controlled through the branch distribution box, and other unit areas are not affected. The unit area corresponds to a branch distribution box, wiring is simple, the used materials of the lines are few, and the cost is low; the overall circuit is simple, and the circuit fault is convenient to check when occurring.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic diagram of a prior art building power distribution system arrangement;

FIG. 2 is a schematic diagram of a power distribution system layout provided by an embodiment of the present invention;

FIG. 3 is a schematic diagram of a power distribution system according to an embodiment of the present invention;

fig. 4 is a second schematic structural diagram of a power distribution system according to an embodiment of the invention;

fig. 5 is a third schematic structural diagram of a power distribution system according to an embodiment of the present invention;

fig. 6 is a fourth schematic structural diagram of a power distribution system according to an embodiment of the present invention;

fig. 7 is a fifth schematic structural diagram of a power distribution system according to an embodiment of the present invention;

fig. 8 is a sixth schematic diagram of a power distribution system according to an embodiment of the present invention;

fig. 9 is a seventh schematic structural diagram of a power distribution system according to an embodiment of the present invention;

fig. 10 is an eighth schematic structural diagram of a power distribution system according to an embodiment of the present invention;

fig. 11 is a ninth schematic diagram of a power distribution system according to an embodiment of the present invention.

10-trunk line as an icon; 20-a lighting lamp; 21-branch line; 100-circuit breaker centralized distribution box; 110-distribution lines; a-a main distribution box; b-branch distribution box.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In distribution lines 110 such as existing buildings, hotels, apartments, schools, hospitals, industrial buildings, commercial buildings and the like, taking the buildings as an example, as shown in fig. 1, a centralized distribution box 100 of circuit breakers is used, a plurality of unit areas divided according to different functions share one circuit breaker (for example, different room sockets of a building distribution system share one leakage circuit breaker), and thus, each load of each unit area is connected to the shared circuit breaker through the distribution lines 110, so that the distribution lines 110 are numerous, and the troubleshooting of the distribution lines 110 is cumbersome when a fault occurs, and accurate control elements in the unit areas cannot be controlled. Furthermore, the circuit breakers are installed in a centralized manner in the distribution box, and the distribution lines 110 in the unit area farther from the distribution box are also longer, which results in higher material costs and higher wiring costs due to the use of more wires and conduits.

In order to solve the above problems, the present embodiment provides a power distribution system, which is based on the unit areas with different functions to realize precise line protection and control, and can be applied to the scenes of buildings, hotels, apartments, schools, hospitals, industrial buildings, commercial buildings, and the like.

Specifically, please refer to fig. 2, the power distribution system includes a main distribution box a having a main switch and a branch distribution box B having branch switches, the branch distribution box B includes a plurality of branch switches, the branch switches in the branch distribution boxes B are connected in parallel, and the branch switches connected in parallel are all connected in series with the main switch in the main distribution box a, the branch distribution boxes B are arranged in a plurality of unit areas having loads, and the branch switches are electrically connected with the loads corresponding to the unit areas.

A main switch is arranged in the main distribution box A, and a branch switch is arranged in the branch distribution box B. The branch distribution box B is placed in the unit area and is connected with a load in the unit area through a branch switch so as to protect the load. Of course, the main distribution box a or the main switch can also be connected to other lines or elements.

The branch switches are connected in parallel, the branch switches connected in parallel are all connected in series with the main switch, and the branch switches are controlled through the main switch. A plurality of branch distribution boxes B are distributed in the corresponding unit areas.

The unit area refers to unit areas divided according to different functions, and for a household, the unit area may include unit areas such as a living room, a bedroom, a kitchen, a toilet, a balcony, and the like, taking a residential building as an example. That is, the living room is a unit area. The other same principles are adopted.

Of course, if for a residential district, the unit area may include a residential area, an underground parking lot, a garden area, a supermarket area, etc. The dwelling area can be divided into different floors, and so on.

It can be seen that when the standard and the object of the function division are different, the area of the unit area is different. The unit area is not specifically limited in this embodiment, and the unit area can be divided according to actual needs, and the power distribution system is cooperatively arranged.

A branch distribution box B is arranged in a unit area, for example, a branch distribution box B is arranged in a living room, and the branch distribution box B regulates all loads in the living room; the bedroom is provided with a branch distribution box B, the kitchen is provided with a branch distribution box B, and the rest is done in sequence.

Total distribution box A house steward all branch road distribution box B, so, a total distribution box A of all unit districts sharing, a branch road distribution box B manages and controls a unit district, when the load of this unit district breaks down, can cut off the circuit in this unit district through the branch road distribution box B of this unit district of management and control, protect the load in this unit district, and needn't cut off the circuit in other unit districts, realize every unit district of accurate control, the circuit between each unit district does not influence each other. In addition, each unit area is correspondingly connected with the branch distribution box B in the unit area, the line connection distance is short, the wiring is convenient, the overall line is simple, and the troubleshooting is simple and convenient when the line fault occurs; correspondingly, the used wires and wire pipe materials are few, and the purposes of saving materials and reducing cost are achieved.

According to the power distribution system provided by the embodiment of the invention, a main switch (not shown in the figure) is arranged in a main distribution box A, branch switches (not shown in the figure) are arranged in a branch distribution box B, the branch switches are connected with loads of unit areas, the branch distribution box B comprises a plurality of branch switches, the branch switches in the branch distribution boxes B are connected in parallel, the plurality of branch switches connected in parallel are all connected in series with the main switch in the main distribution box A, and the branch switches are controlled by the main switch to control the loads of the unit areas. Such branch road cooperation box has a plurality ofly, sets up a branch road block terminal B in every unit district, and each branch road block terminal B all controls through total block terminal A. The corresponding unit area is accurately controlled through the branch distribution box B without influencing other unit areas. The unit area corresponds to the branch distribution box B, wiring is simple, the used materials of the lines are few, and cost is low; the overall circuit is simple, and the circuit fault is convenient to check when occurring.

A plurality of branch switches may be directly connected to the main switch, or a plurality of branch switches may be electrically connected to the main switch through one main line 10.

The number of the main lines 10 may also be multiple, a plurality of main lines 10 are connected in parallel with the main switch, and each main line 10 is further electrically connected with one or more branch switches. One end of each trunk line 10 is connected to a main switch, which may form a non-closed loop line. One or more branch switches are connected to the other end of the main line 10 or to the main line 10. Alternatively, both ends of each main line 10 are connected to a main switch, which may form a closed loop line, and one or more branch switches are connected to the main line 10. For example, the main line 10 is two, and the plurality of branch distribution boxes B may be distributed on the two main lines 10.

Further, the main line 10 may or may not be a closed-loop line. Both ends of the main line 10 are connected to the main switch respectively to form a closed loop circuit with the main switch. The advantage of the closed loop connection of the main line 10 is that the fault of the main line 10 occurs in any unit area, the normal operation of the branch distribution box B of other unit areas cannot be influenced, and the material saving of wires and wire pipes is realized.

Furthermore, the main distribution box A is also provided with a function switch, and the function switch is respectively and electrically connected with the loads with the same functions in each unit area.

The same function means that the same basic function can be realized, for example, all lamps can belong to the same function, and the illumination is realized. The electric appliances with different functions such as the bright lamp 20, the refrigerator, the television, the air conditioner and the like can be divided.

Taking the lighting lamp 20 as an example, the lighting lamp 20 is disposed in each unit area, and the lighting lamp 20 in each unit area can be individually connected to the function switch in the main distribution box a, which controls the lighting lamp 20 in the unit area, and the main switch controls other loads in the unit area except the lighting lamp 20 through the branch switch.

Thus, if the lighting lamps 20 of all the unit areas are required to be turned off, the function switches can be operated without influencing other loads of the unit areas, and accurate and flexible control is realized.

The loads of the respective unit areas are electrically connected to the function switches via branch lines 21, respectively.

For example, the lamps 20 of all the cell areas are connected in parallel to a branch line 21 and electrically connected to the function switch via the branch line 21.

When the number of the function switches is multiple, the loads with the same function in each unit area form a load group, and the multiple function switches are respectively and electrically connected with the corresponding load groups.

That is, the loads of the same function may be a set of load groups, for example, the illumination lamps 20 of all the unit areas may be a set of load groups, the televisions of all the unit areas may be a set of load groups, and so on.

One function switch corresponds to a load group for controlling the illumination lamp 20 and one function switch corresponds to a load group for controlling the tv, so as to fulfill the need of controlling the corresponding load group through the function switch.

The main switch can be a circuit breaker, and the circuit breaker can also be connected with a relay or a contactor in series.

The branch switch can be any one of a circuit breaker, a relay and a contactor, and the branch switch can also be a combination of the circuit breaker and the relay or a combination of the circuit breaker and the contactor.

The function switch is arranged in the main distribution box, so the function switch can also be a circuit breaker, or a combination of the circuit breaker and a relay, and also can be a combination of the circuit breaker and a contactor.

The circuit breaker can be an intelligent circuit breaker to achieve the purpose of automatic control.

The circuit breaker can protect a large load, the relay or the contactor can be remotely controlled, and the mechanical service life is long.

In addition, a control panel is arranged on the branch distribution box and electrically connected with the branch switch, and the control panel is used for controlling the on-off of the branch switch.

Of course, the main distribution box can also be provided with a control panel, and the control panel can be respectively electrically connected with the main switch and the function switch so as to switch on or off the main switch and the function switch.

Specifically, the control panel may be a pressing panel, a touch panel, a liquid crystal panel, or a voice panel, and the control panel is operated by different control modes.

The following describes the arrangement of the power distribution system in several embodiments.

Example one

As shown in fig. 3, each branch distribution box B is directly connected with the main distribution box a, and the main distribution box a can be placed at the central position of each branch distribution box B and the entrance of the house, so that the material saving of wires and conduits is realized. Of course, the main distribution box a may also be placed at other positions in the house, and may be set according to actual needs, which is not specifically limited in this embodiment. The working principle is as follows:

(1) the branch switch can be adopted in the branch distribution box B to protect all lines of the unit area. For example, in a household room, a branch switch protects loops such as a socket, an air conditioner and lighting;

(2) the branch distribution box B can adopt a branch switch and a relay (or a contactor) to be connected in series, so that all lines in a unit area can be protected, and the relay can be used for controlling the on-off of all the lines. For example, in a household room, a branch switch and a relay (or a contactor) are connected in series to protect and control a socket, an air conditioner, lighting and other circuits;

(3) the branch switch protection unit area can be adopted in the branch distribution box B to protect all lines except the lighting circuit. For example, in a household room, a branch switch protects loops such as a socket and an air conditioner. The lighting circuit is directly protected by a main switch (not shown) in the main distribution box a.

Example two

As shown in fig. 4, the branch switch of each branch distribution box B is connected to the main switch of the main distribution box a only by using 1 dry line 10 (except for other circuits of the main distribution box a), the dry line 10 does not adopt a closed-loop line, and the working principle is as follows:

each branch circuit distribution box B is connected to one main line 10 in parallel, the main line 10 is connected with the main distribution box A in series, the main line 10 is not connected in a closed loop, and therefore materials of wires and wire pipes are saved. Other working principles are consistent with the embodiment.

EXAMPLE III

As shown in fig. 5, the branch switch of each branch distribution box B is connected to the main switch of the main distribution box a only by using one main line 10, the lighting circuit of the lighting lamp 20 in each unit area is also separately provided with a function switch and placed in the main distribution box a (except for other circuits of the main distribution box a), each lighting lamp 20 is connected in parallel by using the branch line 21 and then connected to the main switch, the main line 10 does not adopt a closed-loop line, and the working principle is as follows:

each branch distribution box B is connected to one main line 10 in parallel, the main line 10 is connected with the main distribution box A in series, the main line 10 is not connected in a closed loop, and the use materials of wires and line pipes are saved; other working principles are consistent with the embodiment.

Example four

As shown in fig. 6, each branch distribution box B is connected to the main distribution box a by using two or more main lines 10 (except for other circuits of the main distribution box a), the present embodiment uses two main lines 10, and the main lines 10 use non-closed-loop lines, and the operation principle is consistent with the second embodiment, except that when a plurality of branch distribution boxes B are connected to the main distribution box a, the use of one main line 10 results in a thicker line path of the main line 10, and in order not to make the line path of the main line 10 too thick, two or more main lines 10 may be used.

EXAMPLE five

As shown in fig. 7, each branch distribution box B is connected to the main distribution box a by using two or more main lines 10, the lighting circuit is also provided with a single function switch and placed in the main distribution box a (except for other circuits of the main distribution box a), the main lines 10 are non-closed-loop lines, the operation principle is consistent with the third embodiment, and the difference is that when a plurality of branch distribution boxes B are connected to the main distribution box a, using one main line results in a thicker main line diameter, and in order to avoid making the main line diameter too thick, two or more main lines 10 can be used.

EXAMPLE six

As shown in fig. 8, each branch distribution box B is connected to the main distribution box a using only one main line 10 (except for the other circuits of the main distribution box a), and the main line 10 is a closed-loop line. The working principle is as follows:

the branch switch can be adopted in the branch distribution box B to protect all lines of the unit area. For example, in a household room, a branch switch protects loops such as a socket, an air conditioner and lighting;

the branch distribution box B can also adopt a branch switch and a relay (or a contactor) to be connected in series, so that all lines of the functional area can be protected, and the relay can also be used for controlling the on-off of all the lines. For example, in a household room, a branch switch and a relay (or a contactor) are connected in series to protect and control a socket, an air conditioner, lighting and other circuits;

each branch road block terminal B parallel connection each other is on a trunk line 10, and trunk line 10 closed loop connection again establishes ties with total block terminal A, and the benefit of trunk line 10 closed loop connection is that main line trouble appears in any unit district, can not influence other unit district branch road block terminal B's normal operating, realizes wire and spool materials saving moreover.

EXAMPLE seven

As shown in fig. 9, each branch distribution box B is connected to the main distribution box a only by using one main line 10 closed loop, and the lighting circuit is also separately provided with 1 functional switch and placed in the main distribution box a (except for other circuits of the main distribution box a), and the working principle is as follows:

and a branch switch is adopted in the branch distribution box B to protect all lines except the lighting circuit in the unit area. For example, in a household room, a branch switch protects loops such as a socket and an air conditioner. The lighting circuit is directly protected by a main switch in a main distribution box A;

the branch distribution boxes B are connected in parallel with each other on a main line 10, and the main line 10 is connected in series with the main distribution box A in a closed loop mode. The advantages of the dry circuit 10 closure are described in the sixth embodiment above and will not be described in further detail here.

Example eight

As shown in fig. 10, each branch distribution box B is connected to the main distribution box a by using two or more main lines 10 (except for other circuits of the main distribution box a), the main lines 10 may adopt closed-loop lines, the operation principle is consistent with the sixth embodiment, and the difference is that when a plurality of branch distribution boxes B are connected to the main distribution box a, the use of one main line results in a thicker line diameter of the main line 10, and in order not to make the line diameter of the main line 10 too thick, two or more main lines 10 may be used.

Example nine

As shown in fig. 11, each branch distribution box B is connected to the main distribution box a by using two or more main lines 10, the lighting circuit is also separately provided with a function switch and placed in the main distribution box a (except for other circuits of the main distribution box a), the main lines 10 are closed-loop lines, the operation principle is consistent with the seventh embodiment, the difference is that when a plurality of branch distribution boxes B are connected to the main distribution box a, the use of one main line 10 leads to a thicker line diameter of the main line 10, and in order not to make the line diameter of the main line 10 too thick, two or more main lines 10 can be used.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A power distribution system is characterized by comprising a main distribution box provided with a main switch and branch distribution boxes provided with branch switches, wherein the branch distribution boxes comprise a plurality of branch switches, the branch switches in the branch distribution boxes are connected in parallel, and the branch switches connected in parallel are all connected in series with the main switch in the main distribution box;

the branch circuit distribution boxes are arranged in a plurality of unit areas provided with loads in a one-to-one correspondence mode, and the branch circuit switches are electrically connected with the loads corresponding to the unit areas.

2. The power distribution system of claim 1, wherein a plurality of the branch switches are each electrically connected to the main switch by a main line.

3. The power distribution system of claim 2, wherein the trunk lines comprise a plurality of trunk lines, each of the trunk lines further electrically connected to one or more of the branch switches.

4. The power distribution system of claim 2 or 3, wherein both ends of the main line are electrically connected to the main switch respectively to form a closed loop line with the main switch.

5. The power distribution system of claim 4, wherein the main distribution box further comprises functional switches electrically connected to functionally identical loads in each of the cell areas.

6. The power distribution system of claim 5, wherein the functional switch comprises a plurality of functional switches, the functional loads in each of the unit areas form a load group, and the plurality of functional switches are electrically connected to the corresponding load groups.

7. The power distribution system according to claim 5 or 6, wherein the loads of the unit sections are electrically connected to the function switches through branch lines, respectively.

8. The electrical distribution system of claim 1, wherein the master switch comprises any one of a circuit breaker, the circuit breaker and a relay, and the circuit breaker and a contactor.

9. The electrical distribution system of claim 1, wherein the branch switch comprises any one of a circuit breaker, a relay, a contactor, the circuit breaker and the relay, the circuit breaker and the contactor.

10. The power distribution system of claim 1, wherein the branch distribution box is provided with a control panel for controlling the opening and closing of the branch switch.