Modularized low-voltage power distribution device
The modular design of the low-voltage power distribution device enables rapid replacement and adjustment of functional modules, solves the problem that existing devices cannot adapt to load changes, and improves the flexibility and reusability of the equipment.
Patent Information
- Application Number
- CN202422677907.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-04
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-11-04
AI Technical Summary
Existing low-voltage power distribution equipment cannot adapt to load changes, resulting in poor equipment reusability and low flexibility. In addition, the interfaces of internal components are not universal, making it impossible to quickly adjust and deploy.
A modular design is adopted to divide the low-voltage power distribution device into layout area, cabinet and functional modules, and a unified circuit connection interface and fixing holes are set to realize the rapid replacement and adjustment of functional modules.
It improves the adaptability and maintenance efficiency of low-voltage distribution equipment, reduces production time and material waste, achieves compatibility and reusability of different functional modules, and meets diversified power transmission and control needs.
Smart Images
Figure CN223378634U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electrical engineering, and in particular to a modular low-voltage power distribution device. Background Art
[0002] Typically, low-voltage power distribution equipment (LVDs) are electrical devices operating at 1000V AC or 1500V DC. They are also known as LV distribution cabinets or LV distribution boards. They primarily consist of components such as cabinets, busbars, circuit breakers, contactors, and inverters. They integrate control, measurement, signal transmission, and protection functions for each component, enabling power distribution, control, protection, and monitoring of the load.
[0003] Currently, conventional low-voltage power distribution devices are custom-built based on the corresponding load and application scenario. If the load needs to change or the environment in which it is used changes, the distribution device will no longer adapt to the load and must be re-customized, which wastes production costs and time. Furthermore, these custom-built low-voltage power distribution devices cannot be quickly deployed or flexibly adjusted in the ever-changing test environment. The equipment also has poor reusability and flexibility, and the interfaces of its internal components are not universal, making them difficult to adjust. Utility Model Content
[0004] The purpose of the present invention is to provide a new type of power distribution device architecture, which adopts a modular design so that the new type of power distribution device architecture can realize the adjustment of internal components and the replacement of functional modules, so as to adapt to changing usage scenarios and improve the utilization rate of the equipment.
[0005] The technical solution of the utility model is: to provide a modular low-voltage power distribution device, which includes: a layout area, a box body and a functional module;
[0006] The layout area is located on the box body, and the layout area includes a monitoring component layout area, a functional module layout area and a wiring area;
[0007] The monitoring component arrangement area is used to install a monitoring host, a predetermined number of function module installation areas are provided in the function module arrangement area, the function modules are installed in the function module installation areas, and the wiring area is used to connect an external load;
[0008] The functional module is connected to the monitoring component arrangement area, the wiring area and the external power supply through the wires inside the box.
[0009] Furthermore, a first main circuit connection interface and a second main circuit connection interface are set in the functional module installation area, and a first main circuit connection column and a second main circuit connection column are set on the functional module. The first main circuit connection column is connected to the external power supply through the first main circuit connection interface, and the second main circuit connection column is connected to the wiring area through the second main circuit connection interface, and is connected to the external load through the wiring area.
[0010] Furthermore, the first main circuit connection interface is provided at the upper portion of the functional module installation area, and the second main circuit connection interface is provided at the middle and lower portion of the functional module installation area;
[0011] The first main circuit connection column is arranged at the upper part of the functional module and corresponds to the position of the first main circuit connection interface. The second main circuit connection column is arranged in the middle and lower part of the functional module and corresponds to the position of the second main circuit connection interface.
[0012] Furthermore, a monitoring and control circuit connection interface is provided in the functional module installation area, and a monitoring and control circuit connection column is also provided on the functional module;
[0013] The monitoring control circuit connection column is connected to the monitoring component arrangement area through the monitoring control circuit connection interface, and is connected to the monitoring host through the monitoring component arrangement area.
[0014] Furthermore, the monitoring and control circuit connection interface is arranged on one side of the first main circuit connection interface, and the monitoring and control circuit connection column is arranged on one side of the first main circuit connection column, and the monitoring and control circuit connection column corresponds to the position of the monitoring and control circuit connection interface.
[0015] Furthermore, a functional module fixing hole is provided in the functional module installation area;
[0016] The functional module fixing holes are arranged at three positions: the upper part, the middle part and the lower part of the functional module installation area, and the functional module fixing holes are used to install the functional modules.
[0017] Furthermore, the functional module is provided with a main circuit front connection point;
[0018] The main circuit front wiring points are used to connect to other functional modules or external loads through wires, and the main circuit front wiring points are arranged at the upper and lower parts of the functional module away from the box body.
[0019] The beneficial effects of the utility model are:
[0020] The technical solution of the present invention modularizes the part of the low-voltage power distribution device used to install functional modules into multiple identical installation areas, and sets a unified circuit connection interface in the installation area. At the same time, the technical solution of the present invention sets different functional modules according to unified standards, so that different functional modules can be installed in the installation area according to user needs, thereby realizing the compatibility and replaceability of the low-voltage power distribution device with different functional modules. The modular low-voltage power distribution device in the technical solution of the present invention has high flexibility and reusability, and can adapt to application scenarios where the load power and type need to be frequently adjusted and the distribution configuration needs to be replaced.
[0021] The technical solution of this utility model enables the rapid replacement and adjustment of functional modules through simple bolt installation and electrical interface connection, which can adapt to the different power requirements of loads. There is no need for large-scale adjustment or redesign of the entire low-voltage power distribution device to adapt to the power requirements of different loads. This greatly improves the adaptability and maintenance efficiency of the low-voltage power distribution device, and reduces production time and material waste. Through modular design, users can configure different functional modules according to actual needs, realize the precise allocation of various power sources, loads and motor controls, and meet diverse power transmission and control needs. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] The advantages of the above and / or additional aspects of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:
[0023] Figure 1 This is a schematic block diagram of the structural composition of a modular low-voltage power distribution device according to an embodiment of the present utility model;
[0024] Figure 2 This is a schematic block diagram of the structure of a functional module installation area according to an embodiment of the present utility model;
[0025] Figure 3 This is a front structural schematic block diagram of a functional module according to an embodiment of the present utility model;
[0026] Figure 4 is a schematic block diagram of the side structure of a functional module according to an embodiment of the present utility model;
[0027] Figure 5 This is a schematic diagram of the installation of various functional modules for a test piece 1 for performing a power distribution test according to an embodiment of the present utility model;
[0028] Figure 6 This is a schematic diagram of the installation of various functional modules for a test piece 2 for a power distribution test according to an embodiment of the present invention.
[0029] Among them, 1-layout area, 11-monitoring component layout area, 12-functional module layout area, 120-functional module installation area, 1201-first main circuit connection interface, 1202-second main circuit connection interface, 1203-monitoring and control circuit connection interface, 1204-functional module fixing hole, 13-wiring area, 2-box, 3-functional module, 31-first main circuit connection column, 32-second main circuit connection column, 33-monitoring and control circuit connection column, 34-main circuit front wiring point, 4-circuit breaker functional module, 5-contactor functional module, 6-inverter functional module. DETAILED DESCRIPTION
[0030] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.
[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.
[0032] like Figure 1 As shown, this embodiment provides a modular low-voltage power distribution device, which includes a layout area 1, a box 2 and a functional module 3. The layout area 1 is arranged on the box 2, and the layout area 1 includes a monitoring component layout area 11, a functional module layout area 12, and a wiring area 13. The monitoring component layout area 11 is arranged at the upper end of the box 2, the functional module layout area 12 is arranged in the middle position of the box 2, and the wiring area 13 is arranged at the lower end of the box 2. A cavity for accommodating wires is arranged inside the box 2, and the functional module 3 is installed in the functional module layout area 12.
[0033] Layout area 1 consists of three sections: monitoring component area 11, functional module area 12, and wiring area 13. Monitoring component area 11 is used to install the modular low-voltage power distribution device's monitoring host, while wiring area 13 connects the distribution device to external electrical equipment or circuits, facilitating power transmission and distribution. These two areas are designed to be consistent with conventional, non-modular low-voltage power distribution devices. Functional module area 12 is used to install various functional modules, such as circuit breakers, contactors, and inverters.
[0034] like Figure 2 As shown, a predetermined number of function module installation areas 120 are arranged in an array in the function module arrangement area 12 , and the function module installation area 120 is used to install a single function module 3 .
[0035] A first main circuit connection interface 1201, a second main circuit connection interface 1202, a monitoring and control circuit connection interface 1203, and a functional module fixing hole 1204 are set in the functional module installation area 120; wherein, the first main circuit connection interface 1201 is arranged in an array at the upper position of the functional module installation area 120, and the second main circuit connection interface 1202 is arranged in an array at the middle and lower positions of the functional module installation area 120; the monitoring and control circuit connection interface 1203 is arranged on one side of the first main circuit connection interface 1201 at the upper part of the functional module installation area 120; the functional module fixing hole 1204 is arranged in an array at three positions of the upper part, the middle part and the lower part of the functional module installation area 120, and the functional module fixing hole 1204 is located close to the first main circuit connection interface 1201 or the second main circuit connection interface 1202.
[0036] like Figures 3 and 4 As shown, the functional module 3 is provided with a first main circuit connection column 31 , a second main circuit connection column 32 , a monitoring and control circuit connection column 33 and a main circuit front connection point 34 .
[0037] The first main circuit connection column 31 is used to connect to the external power supply through the first main circuit connection interface 1201 and the bus inside the box 2. The first main circuit connection column 31 is arranged in an arranged manner on the upper part of the rear side of the functional module 3 (that is, the side of the functional module 3 close to the box 2), wherein the position of the first main circuit connection column 31 corresponds to the first main circuit connection interface 1201.
[0038] The second main circuit connection column 32 is used to connect to the line of the wiring area 13 through the second main circuit connection interface 1202 and the bus inside the box 2, and to connect to the external load. The second main circuit connection column 32 is arranged in an arranged manner in the middle and lower position of the rear side of the functional module 3 (that is, the side of the functional module 3 close to the box 2), wherein the position of the second main circuit connection column 32 corresponds to the second main circuit connection interface 1202.
[0039] The monitoring and control circuit connection column 33 is used to connect to the monitoring host of the monitoring component layout area 11 through the monitoring and control circuit connection interface 1203 and the internal bus of the box 2. The monitoring and control circuit connection column 33 is arranged on one side of the first main circuit connection column 31 on the upper part of the functional module 3, wherein the position of the monitoring and control circuit connection column 33 corresponds to the monitoring and control circuit connection interface 1203.
[0040] The main circuit front wiring points 34 are used to connect to other functional modules 3 or loads outside the modular low-voltage distribution device through wires. The main circuit front wiring points 34 are set at the upper and lower positions on the front side of the functional module 3, wherein the positions of the main circuit front wiring points 34 correspond to the main circuit connection columns 31 located at the upper and lower positions of the functional module 3.
[0041] In this embodiment, the side of the functional module 3 close to the box body 2 is regarded as the rear side of the functional module 3, and the side of the functional module 3 away from the box body 2 is regarded as the front side of the functional module 3; the first main circuit connection column 31, the second main circuit connection column 32 and the monitoring and control circuit connection column 33 are located on the rear side of the functional module 3, and the main circuit front wiring point 34 is located on the front side of the functional module 3.
[0042] The first main circuit connection interface 1201 is located on a side close to the functional module 3 and is connected to the first main circuit connection column 31 extending from the functional module 3. The first main circuit connection interface 1201 is located on one side inside the box 2 and is connected to an external power supply through a bus.
[0043] The second main circuit connection interface 1202 is on the side close to the functional module 3 and is connected to the second main circuit connection column 32 extending from the functional module 3. The second main circuit connection interface 1202 is on one side inside the box 2 and is connected to the wiring terminals corresponding to the load in the wiring area 13 through the bus.
[0044] The monitoring and control circuit connection interface 1203 is on the side close to the functional module 3, and is connected to the monitoring and control circuit connection column 33 extending from the monitoring controller in the functional module 3 (if the functional module 3 includes a monitoring function, a corresponding monitoring controller will be set up inside). The monitoring and control circuit connection interface 1203 is on one side inside the box 2, and is connected to the wiring terminal corresponding to the monitoring host installed in the monitoring component layout area 11 through the bus.
[0045] The functional module fixing hole 1204 is a mounting hole for the functional module 3 , and the functional module fixing hole 1204 is connected to the functional module 3 via bolts.
[0046] It should be noted that the second main circuit connection column 32 located in the middle and lower part of the functional module 3 is separately optional. When installing the functional module 3, the first main circuit connection column 31 located at the upper part of the functional module 3 is connected to the access point of the external power supply through the first main circuit connection interface 1201 and the bus inside the box 2. If a load needs to be connected, any one of the second main circuit connection columns 32 located in the middle and lower part of the functional module 3 can be connected to the wiring terminal corresponding to the load in the wiring area 13 through the corresponding second main circuit connection interface 1202 and the bus inside the box 2. That is, the second main circuit connection column 32 located in the middle or lower part of the functional module 3 is optional. When connecting, it can be connected according to the specific required load. When one of them fails, the other can be used for connection.
[0047] In this embodiment, to facilitate installation and replacement, all functional modules 3 have the same dimensions and the same locations as the main circuit connection posts 31, monitoring and control circuit connection posts 33, and main circuit front terminal points 34. This means that all external interfaces of the functional modules 3 have uniform requirements, allowing different functional modules 3 to be installed in a unified functional module installation area 120, thus achieving modularization of the low-voltage power distribution device. Functional modules 3 may include circuit breakers, contactors, inverters, and other functional modules.
[0048] In this embodiment, the external dimensions (width × depth × height) of the functional module 3 have uniform requirements. Taking a single low-voltage power distribution device of 600mm × 800mm × 1800mm (width × depth × height) as an example, the maximum size of the functional module 3 installed thereon shall not exceed 100mm × 170mm × 280mm.
[0049] Taking an AC 400V low-voltage power distribution device as an example, the reusability and flexibility of the modular low-voltage power distribution device in this embodiment are described. The application process and the principle of implementing functional module replacement are as follows:
[0050] In a certain test site, a power distribution test is conducted for a test piece 1. The power requirements of the test piece 1 are: 5 AC380V power supplies, 4 motor control groups, and 1 frequency conversion control group. According to the power requirements of the test piece 1, nine circuit breaker function modules 4, four contactor function modules 5, and one frequency conversion function module 6 are selected. Five of the circuit breaker function modules 4 are respectively installed in the five function module installation areas 120 on the upper part of the function module arrangement area 12 by bolts. Specifically, the five circuit breaker function modules 4 are fixed in the function module fixing holes 1204 by bolts. Connect the first main circuit connection column of the circuit breaker function module 4 to the access point of the external power supply through the first main circuit connection interface 1201 and the internal bus of the box 2, connect any group of second main circuit connection columns in the circuit breaker function module 4 to the connection terminals corresponding to the external load in the connection area 13 through the second main circuit connection interface 1202 and the internal bus of the box 2, and connect the monitoring and control circuit connection column of the circuit breaker function module 4 to the monitoring host in the monitoring component layout area 11 through the monitoring and control circuit connection interface 1203 and the internal bus of the box 2; The remaining four groups of circuit breaker function modules 4 are respectively installed in the four function module installation areas 120 on the left side of the middle of the function module layout area 12 by bolts, and the four groups of contactor function modules 5 are respectively installed in the four function module installation areas 120 on the left side of the lower part of the function module layout area 12 by bolts. Specifically, the first main circuit connection columns of the remaining four groups of circuit breaker function modules 4 are connected to the access point of the external power supply through the first main circuit connection interface 1201 and the internal bus of the box 2, and the four groups of circuit breaker function modules 4 are respectively connected in series with the four groups of contactor function modules 5. Connect any group of second main circuit connection posts in the contactor function module 5 to the connection terminals corresponding to the external load in the connection area 13 through the second main circuit connection interface 1202 and the internal bus of the box 2; connect the monitoring control circuit connection posts of the circuit breaker function module 4 to the monitoring host in the monitoring component layout area 11 through the monitoring control circuit connection interface 1203 and the internal bus of the box 2; install a group of frequency converter function modules 6 in a function module installation area 120 on the rightmost bottom of the function module layout area 12 by bolts; the optional installation of each function module is as follows Figure 5 As shown, the top row of the functional module layout area 12 provides five circuit breaker functional modules 4 to meet the five-way AC380V power distribution requirements. The four groups of circuit breaker functional modules 4 and the contactor functional modules 5 on the lower left side realize four groups of motor control functions, and the frequency converter functional module 6 on the lower right realizes one-way variable frequency power supply control requirement.
[0051] After the power distribution test of test piece 1 is completed, replace test piece 2 to carry out the power distribution test. The power requirements of test piece 2 are: eight-way AC380V power supply, two sets of motor control and three sets of frequency conversion control; install a set of circuit breaker function modules 4 in the function module installation area 120 on the rightmost side in the middle of the function module layout area 12, connect the second main circuit connection column of the circuit breaker function module 4 on the right side of the function module layout area 12 through the second main circuit connection interface 1202 and the internal bus of the box 2 to the connection terminal corresponding to the external load in the wiring area 13, remove the contactor function modules 5 in the two function module installation areas 120 on the right side of the lower part of the function module layout area 12, and install two sets of frequency conversion function modules 6 respectively. The optional installation of each function module is as follows: Figure 6 As shown, the upper five-way and middle right three-way circuit breaker function modules 4 provide eight AC380V power supplies, the middle and lower left two-way circuit breaker function modules 4 and the contactor function module 5 are combined to realize two groups of motor control functions, and the lower right three-way inverter function module 6 realizes the three-way variable frequency power supply control requirements.
[0052] If a conventional non-modular power distribution device is used in the above-mentioned power distribution test, when the conventional non-modular power distribution device is configured according to the power demand of test piece one, it cannot be used accordingly when the power distribution test is carried out by replacing test piece two, that is, it cannot adapt to the conduct of subsequent tests. Before carrying out the power distribution test of test piece two, it is necessary to first estimate the power demand of test piece two in advance, configure an eight-way circuit breaker, four sets of circuit breaker and contactor combination control circuits and three sets of frequency converters, and then configure the non-modular power distribution device according to the evaluation results to finally complete the power distribution test. When the modular low-voltage power distribution device in the present invention is used, the functional module can be replaced by adjusting the corresponding functional module in the functional module installation area 120. There is no need to estimate the power demand of test piece two in advance, and there is no need to configure the non-modular power distribution device according to the evaluation results, which reduces time and cost waste and improves the efficiency of functional module replacement.
[0053] In this utility model, the terms "install," "connect," "connect," and "fix" should be understood in a broad sense. For example, "connect" can refer to a fixed connection, a detachable connection, or an integral connection; "connected" can refer to a direct connection or an indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.
[0054] The shapes of the various components in the drawings are schematic, and certain differences from their actual shapes are not excluded. The drawings are only used to illustrate the principles of the present invention and are not intended to limit the present invention.
[0055] Although the present invention is disclosed in detail with reference to the accompanying drawings, it should be understood that these descriptions are merely illustrative and are not intended to limit the application of the present invention. The scope of protection of the present invention is defined by the appended claims and includes various modifications, variations, and equivalents made to the present invention without departing from the scope and spirit of the present invention.
Claims
1. A modular low-voltage power distribution device, characterized in that: The modular low-voltage power distribution device comprises: a layout area (1), a box (2) and a functional module (3); The layout area (1) is located on the box body (2), and the layout area (1) includes a monitoring component layout area (11), a functional module layout area (12), and a wiring area (13); The monitoring component arrangement area (11) is used to install a monitoring host, a predetermined number of function module installation areas (120) are provided in the function module arrangement area (12), the function modules (3) are installed in the function module installation areas (120), and the connection area (13) is used to connect an external load; The functional module (3) is connected to the monitoring component arrangement area (11), the wiring area (13) and an external power supply via wires inside the box (2).
2. The modular low-voltage power distribution device according to claim 1, characterized in that: A first main circuit connection interface (1201) and a second main circuit connection interface (1202) are provided in the functional module installation area (120); a first main circuit connection column (31) and a second main circuit connection column (32) are provided on the functional module (3); the first main circuit connection column (31) is connected to an external power supply via the first main circuit connection interface (1201); the second main circuit connection column (32) is connected to the wiring area (13) via the second main circuit connection interface (1202), and is connected to an external load via the wiring area (13).
3. The modular low-voltage power distribution device according to claim 2, characterized in that: The first main circuit connection interface (1201) is arranged at the upper part of the functional module installation area (120), and the second main circuit connection interface (1202) is arranged at the middle and lower part of the functional module installation area (120); The first main circuit connection column (31) is arranged at the upper part of the functional module (3) and corresponds to the position of the first main circuit connection interface (1201); the second main circuit connection column (32) is arranged in the middle and lower part of the functional module (3) and corresponds to the position of the second main circuit connection interface (1202).
4. The modular low-voltage power distribution device according to claim 2, characterized in that: A monitoring and control circuit connection interface (1203) is also provided in the functional module installation area (120), and a monitoring and control circuit connection column (33) is also provided on the functional module (3); The monitoring control circuit connection column (33) is connected to the monitoring component arrangement area (11) via the monitoring control circuit connection interface (1203), and is connected to the monitoring host via the monitoring component arrangement area (11).
5. The modular low-voltage power distribution device according to claim 4, characterized in that: The monitoring and control circuit connection interface (1203) is arranged on one side of the first main circuit connection interface (1201), and the monitoring and control circuit connection column (33) is arranged on one side of the first main circuit connection column (31), and the monitoring and control circuit connection column (33) corresponds to the position of the monitoring and control circuit connection interface (1203).
6. The modular low-voltage power distribution device according to claim 1, characterized in that: A functional module fixing hole (1204) is also provided in the functional module installation area (120); The functional module fixing holes (1204) are arranged at three positions: the upper part, the middle part, and the lower part of the functional module installation area (120), and the functional module fixing holes (1204) are used to install the functional module (3).
7. The modular low-voltage power distribution device according to claim 1, characterized in that: The functional module (3) is also provided with a main circuit front connection point (34); The main circuit front connection points (34) are used to connect to other functional modules (3) or external loads through wires, and the main circuit front connection points (34) are arranged at the upper and lower parts of the functional module (3) on a side away from the box (2).