Multi-output mining power supply device

Abstract

The utility model provides a multi-output mining power supply device, and belongs to the field of mining power supplies. The problem that the output of an existing multi-path output power supply cannot meet the power demand of multiple devices is solved. The device comprises a shell, an upper cover is installed on the top of the shell, a plurality of output terminals and an input terminal are installed on one side face of the shell, a circuit board is installed in the shell and comprises an upper cover plate, a lower bottom plate and a plurality of power panels, and a plurality of protruding bonding pads are arranged on the upper edge and the lower edge of each power panel respectively. The upper cover plate and the lower bottom plate are respectively provided with perforated bonding pads corresponding to the positions of the bonding pads, the bonding pad on the upper side of the power panel is inserted into the perforated bonding pad of the upper cover plate, and the bonding pad on the lower side of the power panel is inserted into the perforated bonding pad of the lower bottom plate; a main control chip and an independent AC-DC power supply module are integrated on each power supply board, an input power supply converts alternating current into first direct current through the AC-DC power supply module, and the first direct current is connected to an intrinsic safety power supply; the direct-current power supply is used for the mine underground direct-current power supply.

Description

Technical Field

[0001] This utility model provides a multi-output mining power supply device, belonging to the field of mining power supply technology. Background Technology

[0002] Mining power supply units are the main components that ensure power supply underground. In areas where equipment is concentrated, multiple outputs are often required to balance the power consumption of the equipment. However, existing technologies generally only have three or four outputs at most, which cannot meet the power needs of multiple devices underground. Furthermore, the internal circuit board installation structure of existing multi-output power supplies also limits their expansion and space utilization. Utility Model Content

[0003] To address the problem that existing multi-output power supplies cannot meet the power needs of multiple devices, this invention proposes a multi-output mining power supply device. The aim is to improve its circuit and connection structure to meet the needs of at least ten underground devices.

[0004] The technical solution adopted by this utility model is as follows: a multi-output mining power supply device, including a housing, a top cover installed on the top of the housing, multiple output terminals and one input terminal installed on one side of the housing, a circuit board installed inside the housing, the circuit board including a top cover plate, a bottom plate and a multi-output power board, each power board having several protruding pads on its upper and lower sides, and perforated pads respectively opened on the top cover plate and the bottom plate corresponding to the pad positions, the pads on the upper side of the power board being inserted into the perforated pads on the top cover plate, and the pads on the lower side of the power board being inserted into the perforated pads on the bottom plate;

[0005] Each power board integrates a main control chip and an independent AC-DC power module. The input power is converted from AC to DC by the AC-DC power module. The first DC is connected to the intrinsically safe power supply, which is the output power of the power board. The first DC is then output as a second DC to power the main control chip after passing through a voltage regulator circuit.

[0006] Furthermore, an observation window is provided on the top cover.

[0007] Furthermore, the output terminals are sealed to the housing using stainless steel stuffing boxes.

[0008] Furthermore, the input terminals use bend-resistant glands.

[0009] Furthermore, the multi-channel power board includes one power board A and at least one power board B. Power board A is connected to each power board B via a serial port to collect the power status information of the multiple power boards B.

[0010] Furthermore, power board A also integrates a 485 interface, through which power board A connects to the host computer.

[0011] Furthermore, both power board A and power board B are equipped with DIP switches for setting the communication address.

[0012] Furthermore, power board A and power board B achieve signal isolation during serial communication through an optocoupler chip.

[0013] Furthermore, each power supply board is equipped with an output current detection circuit, an input voltage detection circuit, and a dual overcurrent and overvoltage protection circuit. The first DC power is connected to the intrinsically safe power supply after passing through the output current detection circuit and the dual overcurrent and overvoltage protection circuit. The input voltage detection circuit is located between the first DC power and the second DC power.

[0014] Furthermore, a handle is provided on the side of the casing.

[0015] The advantages of this utility model compared to the prior art are as follows: By inserting multiple power boards between the upper cover plate and the lower base plate, multiple power boards can be installed in a limited space, realizing multiple outputs. The overall structure is compact and adopts a modular design, which can easily reduce or increase the number of outputs on the existing basis. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings:

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2-4 They are respectively Figure 1 Front view, top view, and side view;

[0019] Figure 5 This is a schematic diagram of the internal power board layout of this utility model. Figure 1 ;

[0020] Figure 6 This is a schematic diagram of the internal power board layout of this utility model. Figure 2 ;

[0021] Figure 7 This is the electrical connection diagram of the ten power supply boards of this utility model;

[0022] Figure 8 This is the electrical connection diagram for the top cover plate;

[0023] Figure 9 This is the electrical connection diagram on the bottom plate;

[0024] Figure 10 This is a partial circuit diagram of the power supply board;

[0025] In the diagram: 1 is the housing, 2 is the top cover, 3 is the observation window, 4 is the output terminal, 5 is the anti-bend gland, 6 is the handle, 7 is the top cover plate, 8 is the bottom plate, 9 is the power board, and 10 is the wiring terminal. Detailed Implementation

[0026] like Figures 1 to 10 As shown, this utility model provides a multi-output mining power supply device, including a housing 1, a top cover 2 installed on the top of the housing 1, an observation window 3 for convenient observation of the operation of the circuit board inside the housing 1 on the top cover 2, and a glass installed on the observation window 3. Multiple output terminals 4 are installed on the front of the housing 1, and the output terminals 4 are sealed with the housing 1 by using stainless steel stuffing glands. An anti-bending gland 5 is also provided in the middle of the front of the housing 1, and a power transmission cable is installed in the anti-bending gland 5. A handle 6 is also installed on the top of the housing 1, and a circuit board is installed inside the housing 1.

[0027] The circuit board includes an upper cover plate 7, a lower base plate 8, and a 10-channel power supply board 9. The 10-channel power supply board 9 includes one power supply board A and nine power supply boards B. Power supply board A collects the power status information of the other nine power supply boards B and outputs the information of each power supply through a 485 interface. Power supply board A and power supply board B communicate via serial port, and signal isolation is achieved using an optocoupler chip LTV217TP1B. Both power supply boards A and B are equipped with DIP switches to set their communication addresses. Power supply board B distinguishes addresses by setting its DIP switches, facilitating polling of information from power supply board B by power supply board A. Each power board B has an independent AC-DC power module, which uses optocouplers for communication between power boards, enabling ten power outputs without a common ground. Both power boards A and B use the STM32G030F6P6 as the main control chip. Power boards A and B can output voltage measurements via a resistor divider circuit connected to the microcontroller's PA1 pin, using the microcontroller's built-in ADC converter to convert the signal to a digital signal. Power boards A and B can also output current signals using the INA180 chip, outputting analog signals connected to the microcontroller's PA0 pin, and using the microcontroller's built-in ADC converter to convert the signal to a digital signal. Power board A's 485 output signal uses a TD301M485 module, connected to the microcontroller's serial port 1.

[0028] Power board A and power board B each have six protruding pads on their top and bottom sides for fixing to the upper cover plate 7 and the lower base plate 8 and transmitting voltage signals. Corresponding positions on the upper cover plate 7 and the lower base plate 8 are provided with perforated pads, which can accommodate the installation of ten power boards 9 in a 2*5 layout. The protruding pads on the bottom side of the power board 9 are inserted into the lower base plate 8 and then fixed with solder. The perforated pads on the upper cover plate 7 are inserted into the protruding pads on the top side of the power board 9 and then fixed with solder, forming a stable structure.

[0029] The bottom plate 8 is also equipped with a terminal block, fuse, circuit breaker, and thermistor. The power cable in the anti-bend gland 5 is connected to the external AC power and then connected to the terminal block as AC input. The AC input is connected in series with the fuse, circuit breaker, and thermistor and then connected to the AC input terminals of the ten-channel power board 9. The top cover plate 7 serves as the DC output, outputting 12V DC power from the terminal block 10. Each pair of DC power channels is connected to two electrical devices through an output terminal, resulting in a total of ten power output channels.

[0030] The AC-DC power module can use the YS-36S12 single-output bare board power supply from Yushun Company, which converts 220V AC power to 12V DC power. After the 12V DC power is regulated by the voltage regulator circuit, it outputs 3.3V DC power.

[0031] Furthermore, all power boards are equipped with output current detection circuits, dual overcurrent and overvoltage protection circuits, input voltage detection circuits, and intrinsically safe power supplies, with the intrinsically safe power supply serving as the output power supply. Power board A is also connected to a 485 isolated communication circuit, used to output the power status information of the nine power boards B through the 485 interface. The output current detection power supply is used to detect the current output through the AC-DC power module. The input voltage detection circuit is used to detect whether the voltage output after the 12V DC power is regulated by the voltage regulator circuit meets the 3.3V requirement of the main control chip.

[0032] This utility model has a simple structure, can achieve modular assembly, facilitates subsequent multi-way expansion and tailoring, and is easy to install.

[0033] Regarding the specific structure of this utility model, it should be noted that the connection relationships between the various component modules adopted in this utility model are definite and achievable. Except as specifically described in the embodiments, their specific connection relationships can bring about corresponding technical effects and solve the technical problems proposed by this utility model without relying on the execution of corresponding software programs. The models of the components, modules, and specific components appearing in this utility model, the connection methods between them, and the conventional usage methods and expected technical effects brought about by the above-mentioned technical features, unless specifically described, are all publicly disclosed content in patents, journal articles, technical manuals, technical dictionaries, and textbooks that can be obtained by those skilled in the art before the application date, or belong to conventional technology, common knowledge, and other existing technologies in this field. There is no need to elaborate, which makes the technical solution provided in this case clear, complete, and achievable, and can reproduce or obtain corresponding physical products based on this technical means.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A multi-output mining power supply device, characterized in that: The device includes a housing with a top cover. Multiple output terminals and one input terminal are mounted on one side of the housing. A circuit board is installed inside the housing. The circuit board includes a top cover, a bottom plate, and a multi-channel power board. Each power board has several protruding pads on its top and bottom sides. The top cover and bottom plate have perforated pads corresponding to the pad positions. The pads on the top of the power board are inserted into the perforated pads on the top cover, and the pads on the bottom of the power board are inserted into the perforated pads on the bottom plate. Each power board integrates a main control chip and an independent AC-DC power module. The input power is converted from AC to DC by the AC-DC power module. The first DC is connected to the intrinsically safe power supply, which is the output power of the power board. The first DC is then output as a second DC to power the main control chip after passing through a voltage regulator circuit.

2. The multi-output mining power supply device according to claim 1, characterized in that: An observation window is provided on the top cover.

3. The multi-output mining power supply device according to claim 1, characterized in that: The output terminals are sealed to the housing using stainless steel stuffing boxes.

4. A multi-output mining power supply device according to claim 1, characterized in that: The input terminals use bend-resistant glands.

5. A multi-output mining power supply device according to claim 1, characterized in that: The multi-channel power board includes one power board A and at least one power board B. Power board A is connected to each power board B via a serial port to collect the power status information of the multiple power boards B.

6. A multi-output mining power supply device according to claim 5, characterized in that: The power board A also integrates a 485 interface, which connects to the host computer.

7. A multi-output mining power supply device according to claim 5, characterized in that: Both power board A and power board B are equipped with DIP switches for setting the communication address.

8. A multi-output mining power supply device according to claim 5, characterized in that: Power board A and power board B achieve signal isolation during serial communication through an optocoupler chip.

9. A multi-output mining power supply device according to any one of claims 1-8, characterized in that: Each power supply board is equipped with an output current detection circuit, an input voltage detection circuit, and a dual overcurrent and overvoltage protection circuit. The first DC power supply is connected to the intrinsically safe power supply after passing through the output current detection circuit and the dual overcurrent and overvoltage protection circuit. The input voltage detection circuit is located between the first DC power supply and the second DC power supply.

10. A multi-output mining power supply device according to any one of claims 1-8, characterized in that: The casing also has a handle on the side.

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