Power supply control device and modular power supply control equipment

Abstract

The utility model relates to the technical field of power supply and distribution equipment, and discloses a power supply control device and modularized power supply control equipment, and the power supply control device comprises a power supply input module which carries out the power distribution through a terminal strip; a programmable controller connected to the terminal strip and configured to output a control signal; a coil interface of each intermediate relay is connected to the output end of the programmable controller, and a normally open contact of each intermediate relay is connected in series in an input loop of the terminal strip and the corresponding switching power supply; and the switching power supply group comprises at least three switching power supplies with different output parameters respectively. According to the power distribution device, electrical parts related to power distribution are integrated into the power distribution device through modular design of electrical parts, and the modular test power supply function which is high in integration level, supports remote control and has safety protection and rapid deployment capabilities is achieved.

Description

Technical Field

[0001] This utility model relates to the field of power supply and distribution equipment technology, specifically to a power control device and a modular power control equipment. Background Technology

[0002] In the SMT (Surface Mount Technology) production process, the pick-and-place machine is a core piece of equipment. Its modular design and assembly require independent power-on testing of each functional module before the final assembly. Currently, the industry commonly uses temporary test power supply systems, which have the following technical drawbacks: 1. Insufficient safety: Temporarily assembled switching power supply systems lack standardized protective structures, leaving electrical components exposed, posing a risk of electric shock. Furthermore, the protection level is typically lower than IP20, failing to meet industrial environment safety requirements. 2. Low operational efficiency: Each test requires manual assembly of the power supply lines by electrical personnel, a cumbersome and time-consuming process (approximately 30-60 minutes per assembly). After testing, the temporary system must be dismantled, resulting in low reuse rates and wasted manpower and materials. 3. Functional limitations: Temporary systems cannot be remotely controlled. During testing, personnel must operate the power supply on / off and adjust parameters on-site, resulting in low automation. The power supply control lacks surge suppression mechanisms, and frequent starts and stops can easily generate transient voltage surges (measured surge voltage peaks can reach 2-3 times the rated value), causing damage to the circuitry of the module under test and increasing repair costs. 4. Poor mobility and observability: Temporary systems rely on scattered equipment and cannot be moved as a whole to different test stations, which restricts the efficiency of cross-line testing; the operation status monitoring relies on manual visual inspection and lacks a visual monitoring window, which increases the time spent on troubleshooting by more than 50%.

[0003] Therefore, there is an urgent need to develop a modular test power supply device with high integration, remote control support, safety protection and rapid deployment capabilities to solve the systemic defects in safety, efficiency and automation level of existing technologies. Summary of the Invention

[0004] The purpose of this utility model is to overcome the problems existing in the prior art and provide a power control device and a modular power control equipment. This power distribution device integrates power distribution-related electrical components into the power distribution device through the modular design of the electrical parts, so as to achieve a modular test power supply function with high integration, support for remote control, safety protection and rapid deployment capabilities.

[0005] To achieve the above objectives, this utility model provides a power control device, comprising:

[0006] The power input module is configured to connect to a 220V AC power supply and distribute power through a terminal block.

[0007] A programmable controller, connected to the terminal block and configured to output control signals;

[0008] At least three intermediate relays, each intermediate relay's coil interface is connected to the output terminal of the programmable controller, and its normally open contacts are connected in series in the terminal block and the input circuit of the corresponding switching power supply;

[0009] A switching power supply group includes at least three switching power supplies, each with different output parameters, wherein: the first switching power supply is configured to output control power; the second and third switching power supplies are configured to output power.

[0010] A signal control interface, connected to the programmable controller, is used to receive control commands from external devices;

[0011] The programmable controller outputs an enable signal by default to maintain the intermediate relay in the energized state, and dynamically adjusts the on / off state of each intermediate relay according to the instructions received by the signal control interface, thereby achieving stable output control by controlling the on / off state of the corresponding switching power supply input circuit.

[0012] Preferably, the number of intermediate relays is set to three, each corresponding to an input circuit of one of the three switching power supplies, wherein:

[0013] The first switching power supply is configured to output 24V / 150W control power;

[0014] The second switching power supply is configured to output 48V / 450W of power.

[0015] The third switching power supply is configured to output 24V / 1000W of power.

[0016] Preferably, the connection between the programmable controller and the intermediate relay is configured such that when the programmable controller loses power, the intermediate relay automatically disconnects the input circuit of the corresponding switching power supply.

[0017] Preferably, each switching power supply in the switching power supply group is provided with a surge suppression circuit on its input side.

[0018] Preferably, the signal control interface includes an isolation optocoupler circuit to achieve electrical isolation between external control signals and the programmable controller.

[0019] Another aspect of this utility model provides a modular power control device, comprising:

[0020] The housing assembly includes an integrally welded housing, a detachable cover plate, and a bottom plate. The inner wall of the housing is provided with press-fit nuts and nut posts for fixing the cover plate and the bottom plate.

[0021] Functional structural components include a notch on the base plate, a circuit breaker bracket and guide rail installed in the base plate area, and a transparent observation window on the cover plate. The base plate allows for the overall assembly and disassembly of the electrical modules through the notch.

[0022] The power control device, including its programmable controller, terminal block, and intermediate relay, is fixed to the guide rail. The switching power supply group of the power control device is mounted on the base plate, and the power input module of the power control device is located at the through hole in the cover plate.

[0023] Preferably, the box is equipped with handling handles on both sides, and the handling handles are bolted to the box; the transparent observation window is made of acrylic sheet and embedded in the reserved hole of the cover plate.

[0024] Preferably, the enclosure is a fully enclosed welded structure, and a sealing strip is provided on the contact surface between the cover plate and the enclosure.

[0025] Preferably, the notch in the base plate includes U-shaped openings on the top, left, and bottom sides, and the width of the openings is 10-15mm greater than the installation dimensions of the electrical module.

[0026] Preferably, the guide rail is a DIN standard 35mm guide rail, and the programmable controller and the intermediate relay are fixed to the guide rail by snap-fit.

[0027] The above technical solution integrates the electrical components into a modular design, combining power supply-related electrical and control parts into a single device. This one-time assembly avoids repeated reassembly during future use, and the encased casing enhances overall protection and safety. With fixed internal components and handles on the casing, the device can be easily moved to different locations. An internal programmable controller and other electrical devices are also included, allowing for control via an external host computer, eliminating the need for continuous on-site intervention. When it's necessary to observe the internal status of the device, indicator lights on the internal components can be viewed through a transparent acrylic panel at a designated location on the casing, facilitating troubleshooting. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the power control device structure;

[0029] Figure 2 This is a schematic diagram of a modular power control device.

[0030] Figure 3 This is a schematic diagram of the functional structural components;

[0031] Figure 4 This is a schematic diagram of the configuration structure of the power control device;

[0032] In the diagram, 101 is the enclosure; 102 is the removable cover; 103 is the base plate; 104 is the nut; 105 is the nut post; 106 is the notch; 107 is the handling handle; 108 is the intermediate relay; 109 is the transparent observation window; 110 is the circuit breaker bracket; 111 is the guide rail; 112 is the programmable logic controller; 113 is the terminal block; 114 is the control electrical interface; 115 is the power electrical interface; and 117 is the switching power supply group. Detailed Implementation

[0033] In this utility model, unless otherwise explicitly specified and limited, "above" or "below," "left" or "right" of the first feature and the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" of the first feature and the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of the first feature and the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Example 1

[0035] A power control device, such as Figure 1 As shown, it includes:

[0036] The power input module is configured to connect to a 220V AC power supply and distribute power through a terminal block.

[0037] A programmable controller, connected to the terminal block and configured to output control signals;

[0038] At least three intermediate relays are provided, with the coil interface of each intermediate relay connected to the output terminal of the programmable controller, and normally open contacts connected in series in the terminal block and the input circuit of the corresponding switching power supply. The connection relationship between the programmable controller and the intermediate relays is configured such that when the programmable controller loses power, the intermediate relays automatically disconnect the input circuit of the corresponding switching power supply.

[0039] A switching power supply group includes at least three switching power supplies with different output parameters, wherein: the first switching power supply is configured to output control power; the second and third switching power supplies are configured to output power; and each switching power supply in the switching power supply group has a surge suppression circuit on its input side.

[0040] A signal control interface, connected to the programmable controller, is used to receive control commands from external devices; the signal control interface includes an isolation optocoupler circuit to achieve electrical isolation between the external control signals and the programmable controller.

[0041] The programmable controller outputs an enable signal by default to maintain the intermediate relay in the energized state, and dynamically adjusts the on / off state of each intermediate relay according to the instructions received by the signal control interface, thereby achieving stable output control by controlling the on / off state of the corresponding switching power supply input circuit.

[0042] Preferably, the number of intermediate relays is set to three, each corresponding to an input circuit of one of the three switching power supplies, wherein:

[0043] The first switching power supply 1 is configured to output 24V / 150W control power;

[0044] The second switching power supply 2 is configured to output 48V / 450W power.

[0045] The third switching power supply 3 is configured to output 24V / 1000W power.

[0046] The exemplary device is equipped with a 10A power plug and can be directly connected to a 10A three-prong socket. The device operates as follows:

[0047] After connecting the power plug and turning on the main power switch to connect to 220V AC power, the power enters the terminal block and flows to the programmable controller (PLC) and the normally open contacts of the three intermediate relays. The PLC connects to the coil interface of the intermediate relays. When no external device controls the system, the PLC defaults to controlling the intermediate relays to close their normally open contacts. (External devices can control the PLC by sending commands through the signal control interface to open and close the intermediate relays.) After the normally open contacts of the intermediate relays close, the power from the terminal block flows through the relay contacts to the switching power supply, enabling the switching power supply to operate normally and output the specified voltage. Switching power supply 1 outputs 24V 150W control power, switching power supply 2 outputs 48V 450W power power, and switching power supply 3 outputs 24V 1000W power power.

[0048] The programmable controller controls the on / off state of the output power supply by controlling the on / off state of the input power supply of the switching power supply, thus ensuring the stable output of the switching power supply without the influence of surges. Example 2

[0049] A modular power control device, such as Figure 2 As shown, it includes:

[0050] The box assembly includes an integrally welded box 101, a detachable cover plate 102 and a bottom plate 103. The inner wall of the box 101 is provided with a press-fit nut 104 and a nut post 105 for fixing the cover plate 102 and the bottom plate 103.

[0051] Functional structural components, such as Figure 3 As shown, it includes a notch 106 on the base plate 103, a circuit breaker bracket 110 and a guide rail 111 installed in the area of ​​the base plate 103, and a transparent observation window 109 on the cover plate 102. The base plate 103 can be disassembled and assembled with electrical modules through the notch 106.

[0052] The power control device shown in Example 1, such as Figure 4 As shown, the programmable controller 112, terminal block 113 and intermediate relay 108 of the power control device are fixed on the guide rail 111, the switching power supply group 117 of the power control device is installed on the base plate 103, and the power input module of the power control device is located at the through hole of the cover plate 102.

[0053] Furthermore, the enclosure 101 has handles 107 on both sides, which are bolted to the enclosure 101; the transparent observation window 109 is made of acrylic sheet and embedded in the pre-drilled holes in the cover plate 102; the enclosure 101 is a fully enclosed welded structure, and the contact surface between the cover plate 102 and the enclosure 101 is provided with a sealing strip; the notch 106 of the bottom plate 103 includes U-shaped openings on the upper, left, and lower sides, and the opening width is 10-15mm wider than the electrical module installation size; the guide rail 111 is a DIN standard 35mm guide rail, and the programmable controller 112 and the intermediate relay 108 are fixed to the guide rail 111 by snap-fit. The side of the enclosure 101 is also provided with a control electrical interface 114, a power electrical interface 115, and a communication interface 116.

[0054] The enclosure features a one-piece welded structure, ensuring strength while reducing assembly steps. The cover design not only protects internal components and increases the overall protection level of the device, but also allows for external access to the main power supply and observation of the interior. The bottom plate has notches on the top, left, and bottom, allowing personnel to easily remove and insert any components mounted on top, along with mounting holes for installation into the enclosure.

[0055] The equipment structure is relatively simple to assemble while facilitating the installation of electrical components. The assembly method is as follows: Step 1: Install the circuit breaker bracket and guide rail to the designated position on the base plate; Step 2: Fix the switching power supply through the threaded holes on the base plate; Step 3: Connect the terminal block, programmable controller, and intermediate relay to the guide rail; Step 4: Install the main power switch to the circuit breaker bracket; Step 5: After completing the electrical wiring, insert the entire base plate into the enclosure and tighten it with the rivet nuts; Step 6: Install the cover plate and fix the transparent observation window.

[0056] In summary, the integrated modular design of the electrical components combines power supply-related electrical and control parts into a single device. This one-time assembly avoids repeated reassembly during future use, and the enclosed casing enhances the overall protection level and safety. With fixed internal components and handles on the casing, the device can be easily moved to different locations. The inclusion of a programmable controller and other electrical devices allows for control via an external host computer, eliminating the need for continuous on-site intervention. When it's necessary to observe the internal status of the device, indicator lights on the internal components can be viewed through a designated transparent acrylic panel on the casing, facilitating troubleshooting.

[0057] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0058] Therefore, the above description is only a preferred embodiment of this application and is not intended to limit the scope of this application; that is, all equivalent modifications made in accordance with the scope of the claims of this application shall be within the protection scope of the claims of this application.

Claims

1. A power control device, characterized by comprising: include: The power input module is configured to connect to a 220V AC power supply and distribute power through a terminal block. A programmable controller, connected to the terminal block and configured to output control signals; At least three intermediate relays, each intermediate relay's coil interface is connected to the output terminal of the programmable controller, and its normally open contacts are connected in series in the terminal block and the input circuit of the corresponding switching power supply; A switching power supply group includes at least three switching power supplies, each with different output parameters, wherein: the first switching power supply is configured to output control power; the second and third switching power supplies are configured to output power. A signal control interface, connected to the programmable controller, is used to receive control commands from external devices; The programmable controller outputs an enable signal by default to maintain the intermediate relay in the energized state, and dynamically adjusts the on / off state of each intermediate relay according to the instructions received by the signal control interface, thereby achieving stable output control by controlling the on / off state of the corresponding switching power supply input circuit.

2. The power control device of claim 1, wherein The number of intermediate relays is set to three, each corresponding to an input circuit of one of the three switching power supplies, wherein: The first switching power supply is configured to output 24V / 150W control power; The second switching power supply is configured to output 48V / 450W of power. The third switching power supply is configured to output 24V / 1000W of power.

3. The power control device of claim 1, wherein The connection between the programmable controller and the intermediate relay is configured such that when the programmable controller loses power, the intermediate relay automatically disconnects the input circuit of the corresponding switching power supply.

4. The power control device according to any one of claims 1 to 3, characterized by Each switching power supply in the switching power supply group is equipped with a surge suppression circuit on its input side.

5. The power control device of claim 4, wherein The signal control interface includes an isolation optocoupler circuit to achieve electrical isolation between external control signals and the programmable controller.

6. A modular power control device, characterized in that, include: The housing assembly includes an integrally welded housing (101), a detachable cover plate (102), and a bottom plate (103). The inner wall of the housing (101) is provided with a press-fit nut (104) and a nut post (105) for fixing the cover plate (102) and the bottom plate (103). The functional structural components include a notch (106) on the base plate (103), a circuit breaker bracket (110) and a guide rail (111) installed in the area of ​​the base plate (103), and a transparent observation window (109) on the cover plate (102). The base plate (103) can be assembled and disassembled with electrical modules through the notch (106). As described in any one of claims 1-5, the programmable controller (112), terminal block (113) and intermediate relay (108) of the power control device are fixed on the guide rail (111), the switching power supply group of the power control device is installed on the base plate (103), and the power input module of the power control device is located at the through hole of the cover plate (102).

7. The device according to claim 6, characterized in that, The box (101) is equipped with handling handles (107) on both sides, and the handling handles (107) are bolted to the box (101); the transparent observation window (109) is made of acrylic sheet and embedded in the reserved hole of the cover plate (102).

8. The device according to claim 6, characterized in that, The enclosure (101) is a fully enclosed welded structure, and its cover plate (102) is provided with a sealing strip on the contact surface with the enclosure (101).

9. The device according to any one of claims 6-8, characterized in that, The notch (106) of the base plate (103) includes U-shaped openings on the top, left and bottom sides, and the width of the opening is 10-15mm greater than the installation size of the electrical module.

10. The device according to claim 9, characterized in that, The guide rail (111) is a DIN standard 35mm guide rail, and the programmable controller (112) and the intermediate relay (108) are fixed on the guide rail (111) by snap-fit.

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