Intelligent comprehensive power supply device for cabinet

Abstract

The utility model discloses an intelligent integrated power supply device for a cabinet, which comprises a bypass switch of which the input end is connected with commercial power, the output end of the bypass switch is connected with a first loop, the output end of the first loop is connected with a power distribution unit and supplies power to the power distribution unit, and an AC / DC rectifier module of which the output end is connected with a second loop. The second loop is connected with a third loop, the input end of the third loop is connected into the power take-off generator, the third loop comprises a storage battery and a DC / DC voltage stabilization module which are connected in parallel, the output end of the DC / DC voltage stabilization module is connected with the power distribution unit and supplies power to the power distribution unit, and one side of the DC / DC voltage stabilization module on the third loop is further connected with a DC / AC inversion module in parallel. According to the utility model, through the arrangement of multiple loops and the inversion module, the input of multiple power supply modes of the commercial power, the power take-off generator and the storage battery is supported.

Description

Technical Field

[0001] The utility model relates to the technical field of power distribution, in particular to an intelligent integrated power supply device for a cabinet. Background Art

[0002] As electrical control automation is becoming more popular, various electrical control boxes are very common in our lives. In the existing power distribution combination design, independent components or devices are selected according to product requirements and functions, and they are installed one by one inside the panel and box. As a result, the size of the distribution box is relatively large, and the components are connected through wires. The bundling of the wire harness will increase the size of the box and there is a risk that the wiring terminals will loosen after a long time, which may cause the equipment to not work properly.

[0003] The existing cabinet power distribution combination is composed of various components such as contactors, circuit breakers, transfer switches, buttons, indicator lights, voltmeters, ammeters, terminal blocks, etc. The panel required to install them in the panel and the box is large and needs to be manually switched to the corresponding function when it is not intelligent. When encountering multiple input voltages, an inverter or power switch is required to convert the voltage into 220V or 24V to power the equipment normally. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the utility model provides an intelligent integrated power supply device for a cabinet. By setting up multiple circuits and inverter modules, etc., the protection parameter thresholds of each distribution module can be set. There is no need to replace components during use. It supports the input of multiple power supply modes such as AC power, power generator, and battery. When any of the inputs loses power, the other two will intervene in time without affecting the normal operation of the equipment, thereby ensuring the operating reliability of the equipment in an emergency.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: an intelligent integrated power supply device for a cabinet, comprising a bypass switch whose input end is connected to the mains, the output end of the bypass switch is connected to a first circuit, the output end of the first circuit is connected to a power distribution unit and supplies power to it, and also comprises an AC / DC rectifier module connected to the mains, the output end of the AC / DC rectifier module is connected to a second circuit, the second circuit is connected to a third circuit, the input end of the third circuit is connected to a power take-off generator, the third circuit comprises a battery and a DC / DC voltage regulator module connected in parallel, the output end of the DC / DC voltage regulator module is connected to the power distribution unit and supplies power to it, a DC / AC inverter module is also connected in parallel to one side of the DC / DC voltage regulator module on the third circuit, and the output end of the DC / AC inverter module is connected to the first circuit.

[0006] As an optimal technical solution of the utility model, it includes an integrated power supply and a centralized controller. The integrated power supply includes a power button, an operating status indicator light, an output status indicator light, an industrial computer, a leakage protection device, a battery switch and a buzzer. The centralized controller includes a rotary switch and a button with light.

[0007] As a preferred technical solution of the utility model, an anti-reverse diode is connected to the output end of the AC / DC rectifier module on the second loop.

[0008] As a preferred technical solution of the utility model, the output ends of the power distribution unit are respectively connected to AC220V output and DC24V output.

[0009] As a preferred technical solution of the utility model, a charging module is connected in parallel to the third circuit, and a micro-breaker is connected in series to the output end of the charging module.

[0010] As a preferred technical solution of the utility model, the integrated power supply and the centralized controller are both rack-mounted in a cabinet.

[0011] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0012] The utility model arranges multiple circuits and inverter modules, etc., so that the protection parameter thresholds of each distribution module can be set. There is no need to replace components during use. It supports the input of multiple power supply modes such as AC power, power generator, and battery. When any of the inputs loses power, the other two will intervene in time without affecting the normal operation of the equipment, thereby ensuring the operating reliability of the equipment in emergency moments. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a block diagram of the device principle of the utility model;

[0014] Among them: 1. Battery; 2. AC / DC rectifier module; 3. Anti-reverse diode; 4. Charging module; 5. DC / AC inverter module; 6. DC / DC voltage regulator module; 7. Power distribution unit; 8. AC220V output; 9. DC24V output. DETAILED DESCRIPTION

[0015] In order to make the technical means, creative features, purpose and efficacy of the utility model easy to understand, the utility model is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the utility model. The experimental methods in the following embodiments are conventional methods unless otherwise specified, and the materials, reagents, etc. used in the following embodiments are all commercially available unless otherwise specified.

[0016] Embodiment:

[0017] like Figure 1 As shown, the utility model provides an intelligent integrated power supply device for a cabinet, including a bypass switch whose input end is connected to the mains, the output end of the bypass switch is connected to a first circuit, the output end of the first circuit is connected to a power distribution unit 7 and supplies power to it, and also includes an AC / DC rectifier module 2 connected to the mains, the output end of the AC / DC rectifier module 2 is connected to a second circuit, the second circuit is connected to a third circuit, the input end of the third circuit is connected to a power generator, the third circuit includes a battery 1 and a DC / DC voltage regulator module 6 in parallel, the output end of the DC / DC voltage regulator module 6 is connected to the power distribution unit 7 and supplies power to it, one side of the DC / DC voltage regulator module 6 on the third circuit is also connected in parallel with a DC / AC inverter module 5, the output end of the DC / AC inverter module 5 is connected to the first circuit, the output end of the AC / DC rectifier module 2 on the second circuit is connected with an anti-reverse diode 3, the output end of the power distribution unit 7 is respectively connected to an AC220V output 8 and a DC24V output 9, the third circuit is connected in parallel with a charging module 4, and the output end of the charging module 4 is connected in series with a micro-breaker;

[0018] When the device is used, if the mains power and the power generator are both normal, the mains power is directly input to the distribution unit 7 through the bypass switch and the first circuit, and the DC / AC inverter module 5 is in a no-load operation state; the AC / DC rectifier module 2 integrates the mains power into a direct current through the second circuit and merges it with the third circuit of the power generator, a small part of the electric energy is charged to the battery 1 unit through the charger, and most of the energy is stabilized by the DC / DC voltage regulator module 6, and a stable DC24V electric energy is input to the distribution unit 7;

[0019] When the power generation fails, the city power is directly input into the distribution unit 7 through the bypass switch; after the AC / DC rectifier module 2 integrates the city power into direct current, a small part of the direct current energy is supplied to the battery unit 1 through the charger, and most of the direct current is stabilized by the DC / DC voltage regulator module 6 and input into the distribution unit 7 with stable DC24V.

[0020] When the city power is cut off, the bypass switch is switched to the inverter side. When the AC and DC demand of the subsequent stage is small, a small part of the energy of the power take-off generator is charged to the battery 1 through the charging module 4, a part of the energy is stabilized by the DC / DC voltage regulator module 6 and then transmitted to the distribution unit 7 for DC24V electricity, and a part of the energy is converted into AC power by the DC / AC inverter module 5 and then distributed to the distribution unit 7; when the power demand of the subsequent stage is large, part of the energy of the DC / AC inverter module 5 and the DC / DC voltage regulator module 6 comes from the power take-off generator, and part of it comes from the battery 1 unit.

[0021] When both the mains and the power generator are powered off, all the energy of AC and DC comes from the battery 1 unit. The DC / AC inverter module 5 converts the power of the battery 1 into AC220V, which is distributed to the AC220V equipment through the distribution unit 7; the DC / DC voltage regulator module 6 stabilizes the power of the battery 1 and outputs DC24V, which is distributed to the DC24V equipment through the distribution unit 7.

[0022] The present embodiment provides an intelligent integrated power supply device for a cabinet, including an integrated power supply and a centralized controller. The integrated power supply includes a power button, an operating status indicator light, an output status indicator light, an industrial computer, a leakage protection, a battery switch and a buzzer. The centralized controller includes a rotary switch and a button with light. The integrated power supply and the centralized controller are both rack-mounted in the cabinet. The utility model avoids the wall-mounted installation method in the traditional power distribution system, making it rack-mounted, saving space, and also solves the problem of controlling the start and stop of each module and obtaining the operating status of each module through CAN communication. At the same time, the operating status, input and output voltage, current and other information of each module are displayed through the industrial computer. The centralized controller has the ability to manually and uniformly control the power supply and indication of each branch. When the centralized controller conversion switch is rotated to the "manual" position, the control command of each branch is issued through the switch key on the panel of the centralized controller. The CPU inside the controller receives the instruction number, sends the instruction to the integrated power supply through the CAN bus, and the CPU inside the integrated power supply switches the corresponding branch. When the switch action is completed, the integrated power supply will feedback the corresponding switch state. After receiving the change state information, the centralized controller will synchronously control the relay of the branch to complete the corresponding switch action. In order to ensure the power supply safety of the storage battery 1 , the temperature information of the storage battery 1 unit may be collected in real time.

[0023] Beneficial effects: After a certain input power is cut off, the utility model can ensure the normal operation of the equipment through the intervention of other power sources within milliseconds; it can observe the operating parameters such as voltage, circuit, power, etc. of each branch equipment in real time, and can modify and edit them; through highly centralized modular design, it avoids the production size of traditional wall-mounted distribution boxes, saving space for vehicle-mounted equipment.

[0024] Integration and installation of various protection modules, monitoring modules, voltage stabilization modules, etc. in the integrated power supply. The thresholds of protection parameters of each distribution module (short-circuit overload protection value of each load branch, leakage protection value, over-voltage and under-voltage protection value) can be set without replacing components. It supports input of multiple power supply modes such as AC power, power generator, and battery. When any of the inputs loses power, the other two will intervene in time without affecting the normal operation of the equipment, thus ensuring the reliability of the equipment in emergency situations.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent integrated power supply device for a cabinet, characterized in that: The invention comprises a bypass switch whose input end is connected to the mains, wherein the output end of the bypass switch is connected to a first circuit, wherein the output end of the first circuit is connected to a power distribution unit (7) and supplies power to the same, and further comprises an AC / DC rectifier module (2) connected to the mains, wherein the output end of the AC / DC rectifier module (2) is connected to a second circuit, wherein the second circuit is connected to a third circuit, wherein the input end of the third circuit is connected to a power take-off generator, wherein the third circuit comprises a storage battery (1) and a DC / DC voltage stabilizing module (6) connected in parallel, wherein the output end of the DC / DC voltage stabilizing module (6) is connected to the power distribution unit (7) and supplies power to the same, and a DC / AC inverter module (5) is also connected in parallel to one side of the DC / DC voltage stabilizing module (6) on the third circuit, wherein the output end of the DC / AC inverter module (5) is connected to the first circuit.

2. The intelligent integrated power supply device for a cabinet according to claim 1, characterized in that: An anti-reverse diode (3) is connected to the output end of the AC / DC rectifier module (2) on the second loop.

3. The intelligent integrated power supply device for a cabinet according to claim 1, characterized in that: The output ends of the power distribution unit (7) are respectively connected to an AC220V output (8) and a DC24V output (9).

4. The intelligent integrated power supply device for a cabinet according to claim 1, characterized in that: A charging module (4) is connected in parallel to the third circuit, and a micro-breaker is connected in series to the output end of the charging module (4).

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