A line side, continuously adjustable low voltage DC power supply

Abstract

The utility model discloses a low -voltage direct current power supply unit of line side, continuous adjustable, include: distribution box, distribution box fixed mounting is on the field steel structure, be equipped with the storage compartment in distribution box, air switch, install in distribution box or one side of distribution box, switching power supply, install in distribution box, switching power supply's input and air switch electric connection, switching power supply is used for converting commercial ac voltage into continuous adjustable dc voltage output, and has overload protection, overvoltage protection and short -circuit protection function, electric drum wire winder, through the bottom of distribution box of hanging structure and link, its input and switching power supply's output are through the electric wire electric connection, still be provided with the electric wire guide ring for guiding the electric wire into electric drum wire winder on the hanging structure, and be used for connecting the wiring assembly with the equipment of waiting power supply.

Description

Technical Field

[0001] This utility model belongs to the field of power supply, and in particular relates to a low-voltage DC power supply device that is continuously adjustable at the production line. Background Technology

[0002] With the rapid development of industrial automation and mobile equipment, low-voltage DC power is often required for certain products or equipment to ensure their normal operation or to perform functional debugging and inspection, depending on production needs. The most commonly required voltage values ​​are DC9V, DC12V, DC24V or DC36V, while the rated power of the products or equipment ranges from tens of watts to several kilowatts.

[0003] The demand for low-voltage DC power supplies is increasing. In production lines, on-site maintenance, and equipment commissioning, a stable and adjustable DC power supply is frequently required. Traditional solutions include using lead-acid batteries or custom power supply units, but these solutions have limitations. Lead-acid batteries have limited specifications, require regular maintenance and charging, and are inconvenient to transport. While custom power supply units can meet specific needs, they are costly, have long production cycles, and occupy production space. Utility Model Content

[0004] The present invention aims to solve the problems of limited specifications, high cost, and long manufacturing cycle of existing low-voltage DC power supplies.

[0005] To address the above problems, the technical solution adopted by this utility model is: a low-voltage DC power supply device, comprising:

[0006] The distribution box is fixedly installed on the steel structure on site, and the distribution box is equipped with storage compartments; the bottom of the distribution box is also equipped with an insulating block for alligator clips to hold.

[0007] An air switch is installed inside the distribution box or on one side of the distribution box;

[0008] A switching power supply is installed inside the distribution box. The input terminal of the switching power supply is electrically connected to the air switch. The switching power supply is used to convert AC mains voltage into a continuously adjustable DC voltage output and has overload protection, overvoltage protection and short circuit protection functions.

[0009] The electric drum reel is attached to the bottom of the distribution box via a hanging structure, and its input end is electrically connected to the output end of the switching power supply via a wire.

[0010] And a wiring assembly for connecting to a device to be powered, wherein the input end of the wiring assembly is detachably connected to the output end of the electric drum reel; the output end of the wiring assembly is connected to the input end of the device to be powered.

[0011] Furthermore, the distribution box is provided with ventilation openings for heat dissipation of the switching power supply.

[0012] Furthermore, the distribution box is divided into two layers, with the lower layer being a storage compartment for storing the wiring components.

[0013] Furthermore, the wiring assembly includes:

[0014] The parking air conditioning connector has an input end that is detachably connected to the output end of the electric drum reel;

[0015] A connecting cable, one end of which is electrically connected to the output end of the parking air conditioner connector; and an alligator clip, disposed at the other end of the connecting cable, for clamping the device to be powered.

[0016] Furthermore, the mounting structure is also provided with a wire guide ring that guides the wires.

[0017] Furthermore, the structural design of the parking air conditioning connector or the three-hole socket and three-prong plug has a fault-prevention function to prevent reverse connection of the power supply polarity.

[0018] Furthermore, the storage compartment is also provided with a partition structure, and at least one fixed post is provided in the partition structure to prevent the wiring components from colliding or shifting with each other when the distribution box is moved or subjected to vibration.

[0019] Furthermore, the output terminal of the switching power supply includes at least two quick-connect interfaces.

[0020] Furthermore, the drum reel is a four-wire drum reel. When wiring, the cables of the drum reel are grouped into pairs and connected to the positive and negative terminals of the switching power supply.

[0021] The beneficial effects and features of this utility model are:

[0022] (1) The production line side, continuously adjustable low-voltage DC power supply device of this utility model, by combining existing mature products (air switch, switching power supply, electric drum reel, parking air conditioner connector, three-prong plug / socket, alligator clip and distribution box, cable, etc.), achieves the technical effect of providing a continuously adjustable and stable DC power supply voltage of no more than 36V for products or equipment with a rated power of no more than 1000W.

[0023] (2) The production line side, continuously adjustable low-voltage DC power supply device of this utility model: by utilizing the existing steel structure of the production site, it can provide power to products or equipment within a 10m radius, and the power supply line is easy to recycle and does not occupy additional production site space.

[0024] (3) The production line side, continuously adjustable low-voltage DC power supply device of this utility model further ensures the safety of operation by setting an insulating block for alligator clips to hold at the bottom of the distribution box.

[0025] (4) The production line side, continuously adjustable low-voltage DC power supply device of this utility model is designed to facilitate the storage of the distribution box and the management of on-site cables, thereby improving production efficiency and safety. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of the overall structure of a preferred embodiment of the present utility model (the outer panel of the distribution box is opened, and some wires are not shown in the figure);

[0028] Figure 3 This is a wiring diagram of a preferred embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram of the distribution box according to a preferred embodiment of the present invention;

[0030] The reference numerals in the diagram represent: 1-Distribution box, 2-Air switch, 3-Switching power supply, 4-Electric drum cable reel, 5-Wiring assembly, 11-Storage compartment, 12-Insulating block, 41-Hanging structure, 411-Wire guide ring, 51-Parking air conditioner connector, 52-Connecting cable, 53-

[0031] - Alligator clip, 111- Separation structure, 112- Fixing post, 113- Switching power supply output terminal. Detailed implementation method:

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Please refer to Figure 1 , Figure 2 , Figure 4 The embodiments of this utility model relate to a low-voltage DC power supply device, comprising:

[0034] Distribution box 1 is fixedly installed on the on-site steel structure. The distribution box contains storage compartments 11. Specifically, the distribution box can be divided into at least two layers, with the lower layer being storage compartments for storing the wiring components 5. In some other preferred embodiments, a partition structure 111 (e.g., a partition plate) can be designed for storing the wiring components in the lower storage compartments, allowing for the categorization and storage of different types of wiring components (such as connecting cables of different specifications and connectors for different purposes) for easy access and management. The partition structure 111 includes at least one fixed post 112 to prevent the wiring components from colliding or shifting when the distribution box moves or is subjected to vibration.

[0035] Air switch 2 is installed inside the distribution box or on one side of the distribution box; it protects the switching power supply and power grid connected to the mains power. If the air switch is installed inside the distribution box, it is installed near the door of the distribution box for ease of operation, and a transparent observation window is provided on the door so that the operator can check the status of the air switch (such as tripping) without opening the door.

[0036] A switching power supply 3 is installed inside the distribution box. The input terminal of the switching power supply is electrically connected to the air switch. The switching power supply is used to convert AC mains voltage into a continuously adjustable DC voltage output of 0.36V and has overload protection, overvoltage protection and short circuit protection functions. In some preferred embodiments, a quick connection interface (partial wiring is hidden in the figure) can be added to the output terminal 113 of the switching power supply. In addition to the existing connection method with the electric drum reel, it can be conveniently connected to other test equipment or backup power supply lines.

[0037] The electric drum reel 4 is attached to the bottom of the distribution box 1 via the hanging structure 41, and its input end is electrically connected to the output end of the switching power supply via a wire; in some other embodiments, the hanging structure 41 is also provided with a wire guide ring 411 that guides the wire.

[0038] And a wiring assembly 5 for connecting to the device to be powered, wherein the input end of the wiring assembly is detachably connected to the output end of the electric drum reel (the connector interface is designed to be waterproof and dustproof, for example, by adding a waterproof or dustproof cover, which may be encountered in some humid or dusty environments at the production site, thus improving the durability of the connector); the output end of the wiring assembly is connected to the input end of the device to be powered.

[0039] Please refer to Figures 2-3 The distribution box is provided with a ventilation opening 13 for heat dissipation of the switching power supply 3 (the position in the figure is for illustration only, and the heat dissipation opening can also be opened in other positions according to the actual installation situation). A removable dust filter is added to the ventilation opening to prevent dust and other impurities from entering the distribution box and affecting the normal operation of electrical components such as the switching power supply.

[0040] The wiring assembly 5 includes:

[0041] Parking air conditioning connector 51, three-prong plug / socket. A transition cable for easy connection to products or equipment, and a cable reel, with its own structure preventing mis-insertion that could reverse the positive and negative terminals of the power supply to the product or equipment. Its input end is detachably connected to the output end of the electric drum cable reel.

[0042] Connecting cable 52, one end of which is electrically connected to the output end of the parking air conditioner connector; and

[0043] Alligator clip 53 is located at the other end of the connecting cable and is used to clamp the device to be powered. The clamping part of the alligator clip can be designed to be adjustable to adapt to the wiring terminals of different sizes of the devices to be powered. At the same time, the clamping force of the clamping jaws is optimized to ensure a good electrical connection without damaging the wiring terminals.

[0044] In some other embodiments, under certain construction conditions, the alligator clips need to be temporarily removed when they are energized (or in some leakage states). An insulating block 12 for the alligator clips to hold can be provided at the bottom of the distribution box 1 to ensure the safety of the operation.

[0045] The design of the parking air conditioning connector or the three-hole socket and three-prong plug has a fault-prevention function to prevent reverse connection of the power supply polarity.

[0046] The drum reel is a four-wire drum reel. When wiring, the cables of the drum reel are grouped into pairs and connected to the positive and negative terminals of the switching power supply.

[0047] Assembly method

[0048] Utilizing the existing steel structure, the distribution box is installed at a specific location on the structure. The switching power supply is placed inside the distribution box, drawing power from a nearby distribution box and connected to an air circuit breaker for protection. The output of the switching power supply is connected to the radiator cable reel, and the end of the radiator cable reel is connected to the parking air conditioning connector or a three-prong socket. Connecting the connector to the hardware, three-prong plug, cable, or alligator clip can serve as an extension or transition cable, preventing the alligator clip from constantly hanging outside the radiator cable reel (i.e., the alligator clip can also be directly connected to the end of the radiator cable reel), which would affect the aesthetics of the site.

[0049] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the structural relationships and principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A continuously adjustable low-voltage DC power supply device for production line operation, characterized in that, include: The distribution box (1) is fixedly installed on the on-site steel structure (6) and has a storage compartment (11) inside; the bottom of the distribution box (1) is also provided with an insulating block (12) for temporary clamping by alligator clips. An air switch (2) is installed inside the distribution box or on one side of the distribution box; A switching power supply (3) is installed in the distribution box. The input terminal of the switching power supply is electrically connected to the air switch. The switching power supply is used to convert AC mains voltage into a continuously adjustable DC voltage output of 0-36V and has overload protection, overvoltage protection and short circuit protection functions. The electric drum reel (4) is attached to the bottom of the distribution box (1) via a hanging structure (41), and its input end is electrically connected to the output end of the switching power supply via a wire. And a wiring assembly (5) for connecting to the device to be powered, wherein the input end of the wiring assembly is detachably connected to the output end of the electric drum reel; the output end of the wiring assembly is connected to the input end of the device to be powered.

2. The production line-side, continuously adjustable low-voltage DC power supply device according to claim 1, characterized in that, The distribution box is provided with ventilation and heat dissipation vents (13) for the switching power supply (3).

3. The production line-side, continuously adjustable low-voltage DC power supply device according to claim 1, characterized in that, The distribution box is divided into two layers, with the lower layer being a storage compartment for storing the wiring components (5).

4. The production line-side, continuously adjustable low-voltage DC power supply device according to claim 1, characterized in that, The wiring assembly (5) includes: The parking air conditioning connector (51) has its input end detachably connected to the output end of the electric drum reel; Connecting cable (52), one end of which is electrically connected to the output end of the parking air conditioner connector; and Alligator clip (53) is provided at the other end of the connecting cable for clamping the device to be powered.

5. The production line-side, continuously adjustable low-voltage DC power supply device according to claim 4, characterized in that, The hanging structure (41) is also provided with a wire guide ring (411) that guides the wire.

6. The production line-side, continuously adjustable low-voltage DC power supply device according to claim 4, characterized in that, The parking air conditioning connector (51) and the three-prong plug are designed with error prevention function to prevent reverse connection of the power supply polarity.

7. The production line-side, continuously adjustable low-voltage DC power supply device according to claim 1, characterized in that, The storage compartment (11) is also provided with a partition structure (111), and at least one fixed post (112) is provided in the partition structure (111) to prevent the wiring components from colliding or shifting with each other when the distribution box is moved or vibrated.

8. The production line-side, continuously adjustable low-voltage DC power supply device according to claim 1, characterized in that, The output terminal (113) of the switching power supply (3) includes at least two quick-connect interfaces.

9. The production line-side, continuously adjustable low-voltage DC power supply device according to any one of claims 1-8, characterized in that, The drum reel is a four-wire drum reel. When wiring, the cables of the drum reel are grouped into pairs and connected to the positive and negative terminals of the switching power supply.

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