Mobile direct-current power supply for electrical test on construction site

Abstract

A mobile direct-current power supply for construction site electrical tests comprises a coiling hub frame (1), a power line (2) is wound on the coiling hub frame (1), and the mobile direct-current power supply is characterized in that an electric appliance installation module (3) is arranged in the middle of the coiling hub frame (1) and provided with a set of direct-current output terminals (4), a direct-current voltmeter (5), a direct-current air switch (6), a rectifier module (7) and an alternating-current air switch (8); the utility model has the advantages that by integrating the coiling wheel hub frame and the high-efficiency rectification module, the power supply flow of an electrical test is simplified, the time for cable arrangement and power conversion is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of power construction equipment, specifically to a mobile DC power supply for electrical testing at construction sites. Background Technology

[0002] Currently, electrical testing is a crucial step in ensuring the safe and reliable operation of equipment during the construction and maintenance of power systems. Traditional electrical testing often relies on fixed-location DC power supplies or temporary DC power supply systems. These methods are not only inflexible but also difficult to move and deploy efficiently and quickly in complex and changing construction sites. Furthermore, traditional DC power supply equipment presents numerous inconveniences in terms of storage, portability, and cable management, affecting testing efficiency and safety. Therefore, developing a portable DC power supply device that is easy to carry, operate, and efficiently manages cables is of paramount importance. Utility Model Content

[0003] The purpose of this utility model is to address the above-mentioned shortcomings by providing a mobile DC power supply for electrical testing at construction sites.

[0004] This utility model includes a cable reel hub frame, on which a power cord is wound. An electrical installation module is provided in the middle of the cable reel hub frame. The electrical installation module is provided with a set of DC output terminals, a DC voltmeter, a DC air switch, a rectifier module, and an AC air switch.

[0005] A power plug is provided at the end of the power cord.

[0006] The input end of the power cord is electrically connected to the rectifier module via an AC air switch.

[0007] The rectifier module is electrically connected to a set of DC output terminals via a DC air switch.

[0008] The electrical installation module is equipped with an AC input indicator light, which is connected in parallel between the input end of the power cord and the AC circuit breaker.

[0009] A DC voltmeter is connected in parallel between the DC output terminal and the DC air switch.

[0010] The cable reel hub is a hollow cylinder with a handle on top and a stand on the bottom.

[0011] A winding handle is provided on the side wall of the cable reel hub.

[0012] The advantages of this utility model are:

[0013] 1. By integrating the cable reel hub and the high-efficiency rectifier module, this utility model simplifies the power supply process for electrical testing, reduces the time for cable management and power conversion, and thus improves work efficiency.

[0014] 2. The inclusion of AC and DC circuit breakers, along with the addition of protection circuits, enables this invention to automatically cut off the power supply in the event of overload, short circuit, or other abnormal conditions, effectively protecting downstream equipment from damage and improving the safety of the testing process.

[0015] 3. This utility model has a compact overall structure and is lightweight. It is equipped with a 220V power plug and can be directly connected to a standard power socket on the construction site without additional configuration, making it easy to carry and deploy quickly.

[0016] 4. Strong adaptability: The output voltage of the rectifier module is stable and reliable at 220V, which makes this utility model applicable to electrical tests of different types of protection and operation, thus improving the versatility and adaptability of the equipment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a structural schematic diagram of the electrical installation module of this utility model.

[0019] Figure 3 This is a circuit diagram of this utility model. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] In the description of the embodiments of this invention, it should be noted that if terms such as "upper," "lower," "inner," or "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, if terms such as "first" or "second" appear in the description of this invention, they are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0025] As shown in the attached figure, this utility model includes a cable reel frame 1, on which a power cord 2 is wound. An electrical installation module 3 is provided in the middle of the cable reel frame 1. The electrical installation module 3 is provided with a set of DC output terminals 4, a DC voltmeter 5, a DC air switch 6, a rectifier module 7, and an AC air switch 8.

[0026] A power plug is provided at the end of the power cord 2.

[0027] The input terminal of power cord 2 is electrically connected to rectifier module 7 via AC air switch 8.

[0028] The rectifier module 7 is electrically connected to a set of DC output terminals 4 via a DC air switch 6.

[0029] The electrical installation module 3 is equipped with an AC input indicator light 9, which is connected in parallel between the input terminal of the power cord 2 and the AC air switch 8.

[0030] DC voltmeter 5 is connected in parallel between DC output terminal 4 and DC air switch 6.

[0031] The cable reel hub 1 is a hollow cylinder with a handle on the top and a foot bracket on the bottom.

[0032] A winding handle 10 is provided on the side wall of the cable reel hub 1.

[0033] Example 1: Plug the power cord into the power outlet at the construction site, close the AC circuit breaker 8, and start the power input. The rectifier module 7 receives the AC power and converts it to DC power to obtain the required DC voltage value. According to the test requirements, close the DC circuit breaker 6 to output DC power to the device under test. After use, tidy up the power cord 2 using the cable reel to keep the equipment neat and easy to carry and store. During operation, hold the winding handle 10 for easy winding and unwinding of the cable.

Claims

1. A mobile DC power supply for electrical tests at construction sites, comprising a reel hub frame (1) on which a power supply cable (2) is wound, characterized in that The middle part of the winding hub frame (1) is provided with an electric appliance installation module (3), and a group of DC output terminals (4), a DC voltmeter (5), a DC air switch (6), a rectifier module (7) and an AC air switch (8) are arranged on the electric appliance installation module (3).

2. The mobile DC power supply for electrical tests on construction sites according to claim 1, characterized in that, The end of the power line (2) is provided with a power plug.

3. The mobile DC power supply for electrical tests on construction sites according to claim 2, characterized in that, The input end of the power line (2) is electrically connected with the rectifier module (7) through the AC air switch (8).

4. The mobile DC power supply for electrical tests on construction sites according to claim 3, characterized in that, The rectifier module (7) is electrically connected with the group of DC output terminals (4) through the DC air switch (6).

5. A mobile DC power supply for electrical tests on construction sites according to claim 4, characterized in that, An AC input indicating lamp (9) is arranged on the electric appliance installation module (3), and the AC input indicating lamp (9) is connected in parallel between the input end of the power line (2) and the AC air switch (8).

6. A mobile DC power supply for electrical tests on construction sites according to claim 5, characterized in that, The DC voltmeter (5) is connected in parallel between the DC output terminals (4) and the DC air switch (6).

7. The mobile DC power supply for electrical tests on construction sites according to claim 1, characterized in that, The winding hub frame (1) is a hollow cylinder, the top of the winding hub frame (1) is provided with a handle, and the bottom of the winding hub frame (1) is provided with a foot stand.

8. The mobile DC power supply for electrical tests on construction sites according to claim 1, characterized in that, A winding handle (10) is arranged on the side wall of the winding hub frame (1).

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