A power distribution device

Abstract

This application provides a power distribution device, relating to the field of power socket technology. The power distribution device is used to connect a power source and a load respectively, and includes: a housing for enclosing a cavity to accommodate the connection circuit; a plurality of interface units are provided on one side of the housing surface; each interface unit is powered by the same power supply line to at least two interfaces, which are used to connect to the load; a circuit board disposed within the cavity enclosed by the housing; multiple power supply lines are provided on the circuit board; the interface units are connected to the power source through the power supply lines, which have rated current values; and a plurality of indicator units, each indicator unit being configured corresponding to an interface unit. Each indicator unit can acquire the real-time current value generated on the power supply line by the load connected to one interface of its corresponding interface unit, and display the load current value that can be connected to another interface of the interface unit based on the real-time current value.

Description

Technical Field

[0001] This application relates to the field of power socket technology, and more particularly to a power distribution device. Background Technology

[0002] A PDU (Power Distribution Unit) is a power distribution socket for server racks. PDUs typically use a design where two terminals share one power line, and the rated current threshold for each power line is usually 16A. When the total current of a certain line exceeds the threshold, it can easily cause tripping, line burnout, and lead to system interruption and safety issues. Utility Model Content

[0003] To address the aforementioned technical problems, this application provides the following technical solutions:

[0004] This application provides a power distribution device for connecting a power source and a load, comprising: a housing for enclosing a cavity for accommodating a connection circuit, wherein a plurality of interface units are provided on one side of the housing surface, each interface unit being powered by the same power supply line to at least two interfaces, the interfaces being used to connect the load; a circuit board disposed within the cavity enclosed by the housing, the circuit board having a plurality of power supply lines, the interface units being connected to the power source through the power supply lines, the power supply lines having a rated current value; and a plurality of prompting units, each prompting unit being configured corresponding to an interface unit, the prompting unit being able to acquire the real-time current value generated on the power supply line by the load connected to one of the interfaces of its corresponding interface unit, and displaying the load current value that can be connected to another interface of the interface unit based on the real-time current value.

[0005] In some embodiments of this application, the circuit board is provided with: a current monitoring module, which is connected to the power supply line corresponding to each interface unit, and is used to detect the real-time current value connected to each power supply line; and a control module, which is communicatively connected to the current monitoring module and the prompting unit, and can output the load current value that can be connected to the prompting unit according to the real-time current value detected by the current monitoring module, and the prompting unit has different display states according to the load current value.

[0006] In some embodiments of this application, the prompting unit includes a pair of light-emitting LEDs, each pair of LEDs corresponding to a pair of interfaces, and the LEDs are capable of emitting multiple colors; the control module sets multiple current ranges according to the rated current value, and the LEDs emit light of a certain color corresponding to the real-time current value falling into one of the current ranges.

[0007] In some embodiments of this application, the rated current value is 16A; the current ranges are I≤10A, 13A≥I>10A, and I>13A; the light-emitting beads emit green light corresponding to I≤10A, yellow light corresponding to 13A≥I>10A, and red light corresponding to 13A≥I>10A.

[0008] In some embodiments of this application, the prompting unit includes a pair of displays, each pair of displays corresponding to a pair of interfaces; the displays digitally display the load current value that the other interface can access, based on the real-time current value detected by the current monitoring module.

[0009] In some embodiments of this application, the power supply line includes a main line and a pair of branch lines, the interface unit includes a pair of interfaces, and the pair of interfaces are respectively connected to the main line through the pair of branch lines; the circuit board is also provided with a plurality of switching units, and each branch line is provided with a corresponding switching unit. The switching unit is communicatively connected to the control module, and the control module controls the switching on and off of the switching unit through the real-time current value.

[0010] In some embodiments of this application, a pair of interfaces are a first interface and a second interface; when the load is connected to the first interface and the real-time current value detected by the current monitoring module reaches the rated current value, the control module controls the switching unit corresponding to the second interface to disconnect.

[0011] In some embodiments of this application, the circuit board is further provided with a sensing module, which is connected to multiple branch wires for detecting the temperature of the branch wires. The sensing module is communicatively connected to the control module, and the control module simultaneously controls the on / off state of each switch unit on the corresponding branch wire according to the temperature value detected by the sensing module.

[0012] In some embodiments of this application, the housing includes a frame body and multiple mounting modules, with one interface unit corresponding to one of the mounting modules, and the mounting module being detachably connected to the frame body.

[0013] In some embodiments of this application, the interface unit includes two interfaces, the installation module is provided with an installation slot between the pair of interfaces, and the prompting unit is embedded in the installation slot. Attached Figure Description

[0014] The above and other objects, features, and advantages of exemplary embodiments of this application will become readily understood by reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of this application are illustrated by way of example and not limitation, with the same or corresponding reference numerals denoteing the same or corresponding parts, wherein:

[0015] Figure 1 A schematic diagram of the power distribution device according to an embodiment of this application is shown.

[0016] Figure 2 A schematic diagram illustrating the wiring principle of a power distribution device according to an embodiment of this application is shown.

[0017] Figure 3 The diagram illustrates one embodiment of the prompting unit in the power distribution device of this application.

[0018] Figure 4 The diagram schematically illustrates another embodiment of the prompting unit in the power distribution device of this application.

[0019] Explanation of icon numbers:

[0020] 1. Housing; 101. Frame body; 102. Mounting module; 2. Interface unit; 201. Interface; 3. Power supply line; 4. Circuit board; 5. Indication unit; 501. Illuminating LED bead; 502. Display screen; 6. Current monitoring module; 7. Control module; 8. Switch unit; 9. Sensing module. Detailed Implementation

[0021] Exemplary embodiments of this application will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of this application and to fully convey the scope of this application to those skilled in the art.

[0022] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application pertains.

[0023] A problem with traditional PDUs (Power Distribution Units) is that users cannot intuitively and in real-time understand the total load current of two interfaces sharing the same power supply line. For example, if the rated total load current is 16A, and a load, such as a 10A device, is already connected to one interface, when the user connects a second device, such as another 8A device, the user cannot accurately determine whether the total current will exceed the rated value of 16A for that line.

[0024] If the circuit has a protection device, it will trip, causing all connected devices on that circuit to lose power and resulting in a system outage. If the protection device fails or is missing, continuous overload can cause the wires to overheat, the insulation to melt, and ultimately lead to serious safety accidents such as short circuits and fires.

[0025] Therefore, this application provides a power distribution device that can provide a visual early warning of the real-time remaining current capacity of shared lines, avoiding problems such as tripping, line burnout, or fire caused by blind connection.

[0026] This application provides a power distribution device for connecting a power source and a load respectively, such as... Figure 1 and Figure 2 As shown, it includes: a housing 1, which encloses a cavity for accommodating the connecting circuit. Multiple interface units 2 are provided on one side of the housing 1 surface. Each interface unit 2 is powered by the same power supply line 3, supplying at least two interfaces 201. The interfaces 201 are used to connect to a load. A circuit board 4 is disposed within the cavity enclosed by the housing 1. Multiple power supply lines 3 are provided on the circuit board 4. The interface units 2 are connected to a power source via the power supply lines 3, which have a rated current value. Multiple indicator units 5 are provided corresponding to the interface units 2. Each indicator unit 5 can acquire the real-time current value generated on the power supply line 3 by the load connected to one interface 201 of its corresponding interface unit 2, and display the load current value that can be connected to another interface 201 of the interface unit 2 based on the real-time current value.

[0027] The housing 1 can be made of insulating material (such as plastic, rubber, nylon, etc.), forming a closed cavity inside to house the circuit board 4 and power supply line 3. Multiple interface units 2 are arranged on the outer side. Each interface unit 2 contains at least two interfaces 201 (such as national standard or American standard sockets), and the two interfaces 201 are powered by the same power supply line 3. For example, one interface unit 2 integrates two interfaces 201, sharing a single 16A rated current power supply line 3. The interface units 2 can be arranged in a matrix on the surface of the housing 1 for easy insertion and removal of load devices.

[0028] The circuit board 4 is housed within the cavity of the housing 1 and can accommodate multiple independent power supply lines 3. Each power supply line 3 corresponds to one interface unit 2, and each power supply line 3 has a preset rated current value (e.g., 16A). Each prompt unit 5 corresponds to one interface unit 2. The prompt unit 5 can be located near the corresponding interface unit 2, for example, between or above two interfaces 201, to facilitate the user in associating the prompt information with the specific interface unit 2.

[0029] The prompting unit 5 can acquire real-time current data of one interface 201 and display the load current value that another interface 201 in interface unit 2 can connect to based on the real-time current value. For example, when a load generates a current of 10A when one interface 201 in interface unit 2 is connected to a load, the prompting unit 5 calculates and displays that the maximum current that the other interface 201 can connect to is 6A.

[0030] By displaying the remaining current in real time through the prompt unit 5, users can intuitively understand the load capacity of interface unit 2. This visualized remaining current display lowers the operational threshold, facilitating quick management of power supply for multiple devices and preventing overload caused by blindly connecting devices. Compared to traditional PDUs that only trip after overload, this application provides early warning through the prompt unit 5, allowing users to adjust load distribution in advance, reducing the risk of system interruption due to sudden tripping, and avoiding the risk of burnout caused by long-term overload of power supply line 3. Furthermore, in traditional solutions, users may reserve excessive redundant current to avoid overload, while this application allows for precise utilization of rated current through real-time display. For example, when one circuit is already using 12A, devices with current of 4A or less can still be connected, improving power utilization.

[0031] In some embodiments, the circuit board 4 is provided with: a current monitoring module 6, which is connected to the power supply line 3 corresponding to each interface unit 2, and is used to detect the real-time current value connected to each power supply line 3; and a control module 7, which is communicatively connected to the current monitoring module 6 and the prompting unit 5, and can output the load current value that can be connected to the prompting unit 5 according to the real-time current value detected by the current monitoring module 6, and the prompting unit 5 has different display states according to the load current value.

[0032] The current monitoring module 6 can employ current transformers, Hall effect current sensors, etc., to accurately measure DC or AC current. By connecting each Hall effect current sensor in series with the power supply line 3 of the corresponding interface unit 2, the total current flowing through that interface unit 2 can be measured in real time.

[0033] The control module 7 can be a microcontroller unit (MCU) or a programmable logic device, internally storing the rated current value of each power supply line 3, for example, 16A. The control module 7 can receive real-time current data from the current monitoring module 6 via wired or wireless connection, and calculate the load current value that can be connected to another interface 201 in the interface unit 2 through logical operations. Based on the calculated connectable load current value, the control module 7 can send a control command to the corresponding prompting unit 5. For example, if the real-time current value is 10A, the control module 7 calculates that the connectable load current value is 6A. Then, the control module 7 transmits the calculation result to the corresponding prompting unit 5.

[0034] The prompting unit 5 can present different display states based on the accessible load current value transmitted by the control module 7. For example, it can provide intuitive and rapid visual warnings through effects such as color changes, flashing changes, sound changes, or number changes.

[0035] Compared to traditional PDUs that rely on manual estimation or simple overload protection devices, this application, through the current monitoring module 6, can accurately and in real-time monitor the current of the power supply line 3. Through the coordinated operation of the control module 7 and the alerting unit 5, an intelligent dynamic early warning function is achieved. This allows users to intuitively understand the load status of the power supply line 3, make adjustments in advance, and greatly reduce the probability of faults such as tripping due to overload or burnout of the power supply line 3, ensuring the stable operation of the system.

[0036] In some embodiments, the current monitoring modules 6 can be a pair, with each pair corresponding to one of the two interfaces 201 in an interface unit 2, used to detect the load current value connected to each interface 201. For example, when a load is connected to one interface 201, and the corresponding current monitoring module 6 detects a real-time current value of 10A, the control module 7 calculates that the power supply line 3 can also connect a load with a current value of 6A. Then, the control module 7 transmits the calculation result to the corresponding prompting unit 5, which displays that the other interface 201 can also connect a load with a current value of 6A.

[0037] In some embodiments, such as Figure 3 As shown, the prompting unit 5 includes a pair of light-emitting LED beads 501, each pair of LED beads 501 corresponding to a pair of interfaces 201. The LED beads 501 can emit multiple colors. The control module 7 sets multiple current ranges according to the rated current value. The LED beads 501 emit a color of light corresponding to a current range when the real-time current value falls into a current range.

[0038] High-brightness RGB LEDs can be used as LED beads 501. Each interface unit 2 is equipped with a pair of LED beads 501, corresponding to the two interfaces 201 in the interface unit 2. For example, on an interface unit 2 of a rack PDU, LED bead A is installed next to interface a, and LED bead B is installed next to interface b. RGB LEDs can produce multiple colors of light through three colors (red, green, and blue). The brightness of each color channel can be adjusted by the signal output from the control module 7 to achieve color change. The LED beads can be connected to the circuit board 4 by soldering or pin insertion and establish an electrical connection with the control module 7. The control module 7 can preset multiple current ranges. The control module 7 receives the real-time current value transmitted by the current monitoring module 6, determines the range it belongs to, and sends the corresponding control signal to the LED bead 501 of the corresponding interface 201 to change the color of the LED bead.

[0039] For example, when a user connects a high-power device to interface a, the current monitoring module 6 detects that the real-time current of the power supply line 3 reaches 12A. The control module 7 determines that the current value is in the warning range (10-14A), so it sends a control signal to the LED B next to interface b. The LED B can change from green to yellow, clearly indicating to the user that the power supply line 3 where interface 201 is located has a high load. At this time, if you want to connect a device to interface b, you need to carefully evaluate.

[0040] By using the 501 LED beads to display various colors, the current status information of the power supply line 3 can be conveyed to the user in a more intuitive and concise way. Users can take appropriate measures in a timely manner based on different colors to intervene before an overload occurs, effectively avoiding problems such as tripping and equipment damage caused by overload of the power supply line 3, and significantly improving the safety and stability of the power distribution device.

[0041] In some embodiments, the rated current is 16A; the current ranges are I≤10A, 13A≥I>10A, and I>13A; the LED bead 501 emits green light when I≤10A, yellow light when 13A≥I>10A, and red light when 13A≥I>10A.

[0042] On the circuit board 4 of the power distribution device, each interface unit 2 is equipped with a pair of LED beads 501, and these LED beads 501 can be RGB LED beads capable of emitting red, green, and yellow colors. The RGB LED beads can be connected to the control module 7 on the circuit board 4 via pins, and the control module 7 maintains a communication connection with the current monitoring module 6. In the initial stage, the control module 7 can set the rated current value to 16A and divide it into three current ranges: I≤10A, 13A≥I>10A, and I>13A. At the same time, it establishes a correspondence between the current range and the color of the LED beads 501, that is, green light corresponds to I≤10A, yellow light corresponds to 13A≥I>10A, and red light corresponds to I>13A.

[0043] When a load device is connected to interface 201 of interface unit 2, the current monitoring module 6 monitors the current on the corresponding power supply line 3 in real time. For example, if a server is connected to interface 201 of interface unit 2, the current monitoring module 6 detects a real-time current I of 8A and transmits this data to the control module 7. After receiving the data, the control module 7 determines that 8A is within the range of I ≤ 10A, and then sends a control signal to the LED 501 of another interface 201 in the corresponding interface unit 2, causing the LED 501 to emit green light. The current range can be defined according to actual conditions and is not limited here.

[0044] By dividing the current range into three segments and assigning them different colored lights, precise tiered warnings for the load status of power supply line 3 are achieved. A green light indicates that power supply line 3 is in a low-load, safe state, allowing maintenance personnel to safely connect new equipment; a yellow light indicates that the load on power supply line 3 is already high, requiring cautious operation; and a red light clearly warns that power supply line 3 is about to be overloaded, requiring immediate action. The LED 501 displays the current status of power supply line 3 intuitively with color, allowing maintenance personnel to quickly obtain information without the need for additional tools or complex calculations.

[0045] In some embodiments, such as Figure 4 As shown, the prompting unit 5 includes a pair of displays 502, each corresponding to a pair of interfaces 201; the displays 502 display the load current value that can be connected to the other interface 201 in digital form according to the real-time current value detected by the current monitoring module 6.

[0046] An OLED display screen 502 can be used as the display unit 5, which can clearly display digital information. Each interface unit 2 is equipped with a pair of displays 502, with display screen A corresponding to interface a and display screen B corresponding to interface b. These displays are installed above or to the side of their respective interfaces 201, ensuring that the user can directly observe the displayed content when plugging or unplugging the device. The displays 502 are connected to the control module 7 on the circuit board 4, ensuring the stability and timeliness of data transmission.

[0047] The current monitoring module 6 monitors the current value on the power supply line 3 of interface unit 2 in real time and transmits the data to the control module 7. For example, when a device with a current of 5A is connected to interface a, the current monitoring module 6 detects a real-time current of 5A and sends this data to the control module 7. After receiving the data, the control module 7 calculates the load current that interface b can connect to based on the rated current value of the power supply line 3 (e.g., 16A) and finds that it is 11A. Subsequently, the control module 7 transmits the calculated result of 11A to the display screen B of the corresponding interface b via a communication protocol, and the display screen B clearly displays "11A" in digital form.

[0048] By directly displaying the available load current value in digital form, it provides users with accurate quantitative information. Users can clearly know how much current devices can be safely connected to the current interface 201 without performing complex calculations or estimations, avoiding overload risks caused by estimation errors and improving the accuracy of power planning.

[0049] In some embodiments, the power supply line 3 includes a main line and a pair of branch lines, the interface unit 2 includes a pair of interfaces 201, and the pair of interfaces 201 are respectively connected to the main line through a pair of branch lines; the circuit board 4 is also provided with a plurality of switch units 8, and each branch line is provided with a corresponding switch unit 8. The switch unit 8 is communicatively connected to the control module 7, and the control module 7 controls the switching of the switch unit 8 through the real-time current value.

[0050] On the circuit board 4 of the power distribution device, each power supply line 3 consists of one main line and two branch lines. Taking a certain interface unit 2 as an example, interface a is connected to the main line through branch line a, and interface b is connected to the main line through branch line b, forming a complete power supply path. Each branch line can be connected in series with a solid-state relay or an electromagnetic relay as a switching unit 8. The switching unit 8 can establish a communication connection with the control module 7 through the GPIO (General Purpose Input / Output) interface 201 to ensure that the control module 7 can accurately control the on / off state of the switching unit 8.

[0051] The current monitoring module 6 continuously monitors the real-time current value of each power supply line 3 and transmits the data to the control module 7. Assuming the rated current of power supply line 3 is 16A, when a device is connected to interface a, causing the current in branch conductor a to reach 10A, while interface b is not yet connected to a device, the total current of power supply line 3 is 10A. If a user attempts to connect a high-power device with an expected current of 8A to interface b, the current monitoring module 6 detects that the total current of power supply line 3 will reach 18A after the connection, exceeding the rated current. Upon receiving the real-time current data and performing calculations, the control module 7 determines an overload and immediately sends a disconnect signal to the switch unit 8 on branch conductor b. The solid-state relay quickly cuts off the power supply to interface b, preventing device connection and avoiding overload of power supply line 3.

[0052] By installing switch units 8 on the branch conductors, independent current control of each interface 201 is achieved. When connecting a device to a certain interface 201 may cause an overload, the control module 7 can precisely control the corresponding switch unit 8 to disconnect, preventing the overload behavior of a single interface 201 from affecting the normal power supply of other interfaces 201. This effectively prevents problems such as tripping and burning of the power supply line 3 due to overload, greatly improving the safety of the power distribution device. Furthermore, by quickly disconnecting the corresponding switch unit 8, the fault is isolated within the range of a single interface 201, without affecting the normal operation of other branches.

[0053] In some embodiments, a pair of interfaces 201 are a first interface and a second interface; when a load is connected to the first interface and the real-time current value detected by the current monitoring module 6 reaches the rated current value, the control module 7 controls the switching unit 8 of the corresponding second interface to disconnect.

[0054] In the power distribution device, each interface unit 2 includes a first interface and a second interface, which are connected to the main line through independent branch conductors. The first interface and the second interface correspond to branch conductor a and branch conductor b, respectively. Each branch conductor is connected in series with a switch unit 8. At the same time, the current monitoring module 6 is connected in series at the position of the main line to monitor the total current in the power supply line 3 in real time.

[0055] When a load device is connected to the first interface, the current monitoring module 6 begins to monitor the current of the power supply line 3 in real time. Assuming the rated current of the power supply line 3 is 16A, and a server is connected to the first interface, when the current monitoring module 6 detects that the real-time current value of the first interface reaches 16A, it immediately transmits the data to the control module 7. Upon receiving the data, the control module 7 quickly performs a logical judgment, confirms that the current is within the rated current range, and then sends a disconnect command to the corresponding switch unit 8 of the second interface via a signal line. Upon receiving the command, the relay's internal electromagnetic mechanism activates, the contacts separate, and the power supply circuit to the second interface is cut off. If an operator attempts to connect another device to the second interface at this time, the device will not receive power because the switch unit 8 is already disconnected, thus preventing the power supply line 3 from malfunctioning due to overload.

[0056] By targeting a single interface unit 2, when the current of the first interface reaches the rated value, only the second interface is disconnected. This effectively prevents overload caused by the continued connection of load to the second interface, while ensuring the continuous and stable operation of the first interface device. This achieves precise overload protection and improves power supply reliability.

[0057] In some embodiments, the circuit board 4 is further provided with a sensing module 9, which is connected to multiple branch wires for detecting the temperature of the branch wires. The sensing module 9 is communicatively connected to the control module 7, and the control module 7 controls the on / off state of each switch unit 8 on the corresponding branch wire according to the temperature value detected by the sensing module 9.

[0058] Thermistor temperature sensors, digital temperature sensors, and infrared temperature sensors are selected as sensing modules 9, enabling real-time and accurate detection of branch conductor temperatures. A temperature sensor can be deployed on the circuit board 4 of the power distribution unit for each branch conductor, closely attached to the main conductor or key node locations (such as the connection between the conductor and interface 201, or switch unit 8), and established with the control module 7 via wired or wireless connection. To ensure tight contact between the temperature sensor and the branch conductor, thermally conductive silicone can be used for fixation, guaranteeing accurate temperature detection.

[0059] The sensing module 9 continuously monitors the temperature of the branch conductors and transmits the real-time temperature data to the control module 7. When the temperature of a branch conductor rises due to prolonged high-load operation or poor contact, the sensing module 9 transmits the detected temperature data to the control module 7. The control module 7 determines whether the temperature exceeds a temperature threshold. If it does, the control module 7 quickly disconnects the switch unit 8 connected to the first or second interface on the branch conductor to prevent further temperature increases and potential hazards.

[0060] By promptly cutting off the power supply when abnormally high temperatures occur in branch conductors, faults such as aging of the line insulation and short circuits caused by excessive temperature can be prevented, thus avoiding the paralysis of the entire system due to local problems.

[0061] In some embodiments, the housing 1 includes a frame body 101 and a plurality of mounting modules 102, with an interface unit 2 correspondingly mounted on a mounting module 102, and the mounting module 102 being detachably connected to the frame body 101.

[0062] The frame body 101 can be made of high-strength aluminum alloy or engineering plastic material, forming a regular rectangular frame structure. Multiple mounting positions, such as multiple groove structures, can be set on the frame body 101. Each groove structure can have a slot or guide rail inside for fixing the mounting module 102. The side or back of the frame body 101 has reserved power inlet holes and wiring channels to facilitate the connection and organization of power supply lines 3.

[0063] Each mounting module 102 can be an independent small box structure, made of flame-retardant engineering plastic. An interface unit 2, containing a pair of interfaces 201, can be provided on the front of the module, and a snap-fit ​​or slider structure corresponding to the slots or guide rails of the frame body 101 is provided on the back. The mounting module 102 has reserved space inside for arranging some wiring and connectors for connection to the circuit board 4, such as through pin headers or pluggable connectors to achieve electrical connection with the circuit board 4.

[0064] The buckles or sliders on the back of the mounting module 102 can be aligned with the slots or guide rails of the frame body 101, and gently pushed in along the guide rail until the buckles automatically engage, completing the physical fixation. Simultaneously, the electrical connector on the back of the mounting module 102 precisely mates with the corresponding interface 201 on the circuit board 4, achieving circuit connection. The external structure and connection structure of the frame body 101 and the mounting module 102 can utilize existing structures, as long as they achieve a detachable connection function; no specific limitations are imposed here.

[0065] With the design of the detachable installation module 102, when a certain interface unit 2 fails, the maintenance personnel can directly disassemble the corresponding installation module 102 for individual repair or replacement without interrupting the normal power supply of other interface units 2, and without the need for complex disassembly of the entire device, which greatly shortens the fault handling time, improves maintenance efficiency, and reduces maintenance costs.

[0066] In some embodiments, the interface unit 2 includes two interfaces 201, and the installation module 102 is provided with an installation slot between the pair of interfaces 201, and the prompting unit 5 is embedded in the installation slot.

[0067] The mounting module 102 can be manufactured using an integrated injection molding process and can be made of high-strength flame-retardant PC material. Its front side can be rectangular, with two interface 201 mounting holes provided at the corresponding interface unit 2 positions for connecting loads. A rectangular or circular mounting slot can be provided between the two interface 201 mounting holes; the size of the mounting slot can be designed according to the size of the indicator unit 5 to accommodate small displays or indicator lights.

[0068] By embedding the indicator unit 5 into the mounting slot, it is protected by the housing of the mounting module 102, reducing the impact of external impacts and dust intrusion on the indicator unit 5, thus improving its service life and operational stability. Located between the two interfaces 201, the indicator unit 5 naturally passes through its location when the user plugs or unplugs the device, allowing for immediate and intuitive access to line current status information. Integrating the indicator unit 5 with the interface unit 2 onto the same mounting module 102 enables modular assembly during production, simplifying the assembly process, improving production efficiency, and reducing assembly costs.

[0069] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A power distribution device for connecting a power source and a load, respectively, characterized by, include: A housing for enclosing a cavity for accommodating connecting circuits, wherein a plurality of interface units are provided on one side of the housing surface, each interface unit being powered by the same power supply line with at least two interfaces for connecting the load; A circuit board is disposed within the cavity enclosed by the housing. The circuit board is provided with a plurality of power supply lines. The interface unit is connected to the power source through the power supply lines. The power supply lines have a rated current value. Multiple prompting units are provided, each corresponding to an interface unit. Each prompting unit can obtain the real-time current value generated on the power supply line by the load connected to one of the interfaces in its corresponding interface unit, and display the load current value that can be accessed by another interface in the interface unit based on the real-time current value.

2. The power distribution apparatus of claim 1, wherein The circuit board is equipped with: A current monitoring module is connected to the power supply line corresponding to each interface unit, and is used to detect the real-time current value connected to each power supply line. The control module is communicatively connected to both the current monitoring module and the prompting unit. The control module can output the load current value that can be accessed to the prompting unit based on the real-time current value detected by the current monitoring module. The prompting unit has different display states based on the load current value.

3. The power distribution device according to claim 2, characterized in that, The prompting unit includes a pair of LED beads, each pair of LED beads corresponding to a pair of interfaces, and the LED beads can emit multiple colors. The control module sets multiple current ranges based on the rated current value, and the LED emits light of a certain color corresponding to the real-time current value falling into one of the current ranges.

4. The power distribution device according to claim 3, characterized in that, The rated current is 16A; The current ranges are I≤10A, 13A≥I>10A, and I>13A, respectively. The light-emitting LED emits green light when I≤10A, yellow light when 13A≥I>10A, and red light when 13A≥I>10A.

5. The power distribution device according to claim 2, characterized in that, The prompting unit includes a pair of displays, and the pair of displays are respectively configured to correspond to the pair of interfaces; The display screen displays the load current value that can be accessed by the other interface in digital form based on the real-time current value detected by the current monitoring module.

6. The power distribution device according to claim 3, characterized in that, The power supply line includes a main line and a pair of branch lines, and the interface unit includes a pair of interfaces, each of which is connected to the main line via the pair of branch lines. The circuit board is also provided with multiple switching units, and each branch conductor is provided with a corresponding switching unit. The switching unit is communicatively connected to the control module, and the control module controls the switching unit to open or close based on the real-time current value.

7. The power distribution device according to claim 6, characterized in that, The pair of interfaces are a first interface and a second interface; When the load is connected to the first interface and the real-time current value detected by the current monitoring module reaches the rated current value, the control module controls the switching unit corresponding to the second interface to disconnect.

8. The power distribution device according to claim 6, characterized in that, The circuit board is also equipped with a sensing module, which is connected to multiple branch wires for detecting the temperature of the branch wires. The sensing module is communicatively connected to the control module, and the control module controls the on / off state of each switch unit on the corresponding branch wire based on the temperature value detected by the sensing module.

9. The power distribution device according to claim 1, characterized in that, The housing includes a frame body and multiple mounting modules. One interface unit is mounted on one of the mounting modules, and the mounting modules are detachably connected to the frame body.

10. The power distribution device according to claim 9, characterized in that, The interface unit includes two interfaces, the installation module is provided with an installation slot between the pair of interfaces, and the prompting unit is embedded in the installation slot.

Images