Delayed automatic power-off detection device and multifunctional detection mobile workbench

Abstract

The utility model is suitable for the technical field of battery testing, and provides a time-delay automatic power-off detection device and a multifunctional detection mobile workbench. A time-delay automatic power-off detection device comprises a box body, a containing space is arranged in the box body, a switching power supply and a master control module are arranged in the containing space, a time relay is installed in the containing space, the time relay is electrically connected with the switching power supply, and a circuit is triggered to be cut off after preset time; the time relay is electrically connected with an intermediate relay, and the intermediate relay is controlled by the time relay and used for cutting off power supply of the main circuit; and the main control module is electrically connected with the time relay. According to the utility model, the problem that the existing battery management system test method lacks an efficient and reliable power supply and communication platform is solved.

Description

Technical Field

[0001] This utility model belongs to the field of battery testing technology, and in particular relates to a delayed automatic power-off detection device and a multi-functional mobile testing workbench. Background Technology

[0002] Verifying the basic functions of the battery pack is a crucial step in the research and testing of a Battery Management System (BMS). However, traditional testing methods typically rely on temporary power supplies and communication platforms between the master and slave controllers. This approach is not only time-consuming and labor-intensive but also prone to management problems. More importantly, after testing, the lack of a power-off interlock mechanism means that operators may make mistakes in the operating sequence, causing the slave module to fail to enter sleep mode, resulting in excessive self-discharge. This not only increases the capacity differences between different battery packs but may also affect the capacity consistency of the string cluster system during charging and discharging, ultimately impacting the overall system performance.

[0003] Currently, there is no dedicated functional verification device for this type of battery management system on the market. Most existing testing platforms lack delayed automatic power-off functions and interlocking mechanisms, failing to effectively address the aforementioned issues. Therefore, there is an urgent need for a device that can improve testing efficiency and reliability, and ensure the safe and accurate completion of various functional verifications for the battery pack.

[0004] In order to solve the above-mentioned technical problems, this utility model designs a delayed automatic power-off detection device and a multi-functional mobile detection workbench. Utility Model Content

[0005] This utility model provides a detection device for delayed automatic power-off, aiming to solve the problem of the lack of efficient and reliable power supply and communication platform in existing battery management system testing methods. The technical solution is as follows:

[0006] A detection device for delayed automatic power-off, characterized in that: it includes a housing, the housing having a receiving space, the receiving space containing a switching power supply and a main control module, the receiving space containing a time relay, the time relay being electrically connected to the switching power supply, triggering the circuit to cut off after a preset time; an intermediate relay is electrically connected to the time relay, the intermediate relay being controlled by the time relay and used to cut off the main circuit power supply; the main control module is electrically connected to the time relay.

[0007] Based on the above technical solution, it also includes a temperature controller and a touch screen, both of which are electrically connected to the main control module.

[0008] Based on the above technical solution, an interface module is provided on the enclosure. The interface module includes a socket for providing power and signal transmission to the device under test, a socket for connecting a temperature sensor, and a socket for powering the detection device.

[0009] Preferably, the interface module is a banana socket, an AC power output industrial socket, a T-type thermocouple socket, or a three-in-one AC socket.

[0010] A multifunctional mobile testing workbench includes the aforementioned testing device and a mobile frame. The testing device is mounted on the mobile frame, and a battery pack is placed on the mobile frame. A connection port is provided on the battery pack, and a cable connects the connection port to a slave control communication connection port.

[0011] Based on the above technical solution, a display is also provided on the mobile frame, and the display is electrically connected to the detection device.

[0012] Beneficial effects

[0013] Compared with existing technologies, the advantages of this utility model are: 1. The introduction of a delayed automatic power-off function effectively prevents the slave control module from failing to enter the sleep state due to operational sequence errors, reducing the risk of excessive battery pack self-discharge and ensuring the safety of equipment and personnel. 2. The testing device integrates multiple interfaces to adapt to the connection requirements of different types of battery packs. 3. The mobile rack design further increases the system's flexibility and the breadth of application scenarios. Through the integrated testing device design, the time and complexity of temporarily setting up the test environment are reduced, making the test preparation process simpler and faster. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one embodiment of this utility model. For those skilled in the art, other embodiments can be derived from the provided drawings without creative effort.

[0015] Figure 1 : A top view of the internal structure of the detection device described in this utility model;

[0016] Figure 2 : A schematic diagram of the structure of the rear panel of the detection device described in this utility model;

[0017] Figure 3 : A schematic diagram of the front panel of the detection device described in this utility model;

[0018] Figure 4Electrical circuit diagram of the detection device described in this utility model;

[0019] Figure 5 : A schematic diagram of the structure of the multifunctional mobile detection workbench of this utility model.

[0020] The components include: 1. Cabinet; 11. Embedded concealed handle; 12. Aluminum alloy handle; 13. Aluminum alloy chassis feet; 2. Switching power supply; 31. Intermediate relay; 32. Time relay; 321. Pause button; 322. Reset button; 4. Main control module; 40. Main control switch; 401. Host computer connection port; 402. Main control power supply mode selection switch; 403. Slave control communication connection port; 5. Temperature controller; 51. Power output banana socket; 52. AC power output industrial socket; 53. T-type thermocouple socket; 54. Three-in-one integrated AC socket; 6. AC circuit main air switch; 7. Touch screen; 71. Main control display board; 8. Mobile rack; 81. Monitor; 82. Island power supply socket; 90. Battery pack. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and examples:

[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] like Figures 1 to 3As shown, a detection device for delayed automatic power-off includes a housing 1, which has a storage space inside, and a switching power supply 2 and a main control module 4 are installed in the storage space.

[0026] The switching power supply 2 converts the input alternating current (AC) into direct current (DC) required by the internal components of the device. This is crucial for ensuring the proper functioning of electronic components, as most electronic devices and integrated circuits require a stable DC power supply to operate.

[0027] A time relay 32 is installed within the accommodating space. The time relay 32 is electrically connected to the switching power supply 2 and triggers the circuit to cut off after a preset time. By setting a specific time, the circuit can be automatically cut off after reaching that time point, effectively avoiding prolonged power supply problems caused by human negligence or operational errors. This is especially important for high-voltage, high-current equipment that may exist in the testing environment, helping to prevent safety hazards such as overheating and short circuits.

[0028] The time relay 32 is electrically connected to an intermediate relay 31, which is controlled by the time relay 32 and used to cut off the power supply to the main circuit. The main control module 4 is electrically connected to the time relay 32. The intermediate relay 31 can provide electrical isolation between the high-voltage or high-current main circuit and the control circuit. Even if a fault occurs in the main circuit, it will not directly affect the control circuit, thereby protecting sensitive electronic components including the time relay 32 and the main control module 4.

[0029] An interface module is provided on the housing 1. The interface module includes a socket for providing power and signal transmission to the device under test, a socket for connecting a temperature sensor, and a socket for powering the detection device.

[0030] The interface modules are a banana socket 51, an AC power output industrial socket 52, a T-type thermocouple socket 53, and a three-in-one AC socket 54.

[0031] The 54-in-1 three-in-one AC socket is an interface used to power testing devices, providing a convenient one-stop solution and simplifying equipment installation and wiring.

[0032] Banana socket 51 and AC power output industrial socket 52 provide additional power interfaces. Different types of sockets meet diverse connectivity needs. For example, banana socket 51 is typically used for low-voltage signal transmission and power supply, suitable for delicate testing in laboratory environments; while AC power output industrial socket 52 can provide higher power output, suitable for driving larger loads or equipment.

[0033] The enclosure 1 also contains a temperature controller 5 and a touch screen 7, both of which are electrically connected to the main control module 4.

[0034] The temperature controller 5 is connected to an external temperature sensor (e.g., a T-type thermocouple) via a T-type thermocouple socket 53 to obtain real-time temperature data. This data is then sent to the main control module 4 for processing or further action decisions.

[0035] The touch screen 7 displays temperature information provided by the thermostat 5 through the main control module 4, or allows users to adjust the set point of the thermostat through the touch screen.

[0036] The main control module 4 is equipped with a main control switch 40, a host computer connection port 401, a main control power supply mode selection switch 402, and a slave control communication connection port 403 to realize communication, local control, and mode switching. The slave control communication connection port 403 is used to connect the battery pack.

[0037] The host computer connection port 401 allows the detection device to be connected to an external computer system or host computer, thereby enabling remote monitoring, data collection and analysis of the equipment.

[0038] The main control power supply mode selection switch 402 enables the switching between direct power supply to the main control system, joint control with the time relay, and power-off function.

[0039] The front panel of housing 1 is equipped with a timer pause button and a timer reset button, allowing operators to pause and reset the timer operation when needed.

[0040] The front panel also features an AC power supply button switch for the timer, which controls the power supply to the timer, allowing operators to turn the timer function on or off as needed, while also helping to save energy.

[0041] The rear panel of enclosure 1 is equipped with a banana plug for power output 51, an industrial AC power output socket 52, a T-type thermocouple socket 53, a three-in-one AC socket 54, and a main AC circuit breaker 6. The main AC circuit breaker 6 can manually or automatically disconnect or connect the circuit. When maintenance of the entire system is required or in case of an emergency, the power supply can be safely isolated by disconnecting the circuit breaker.

[0042] like Figure 4 The electrical circuit diagram shows that the entire system is powered by a three-in-one AC socket 54, and the switching power supply 2 converts AC power to DC power to provide a stable DC 24V power output for the system.

[0043] Main control module 4 is the core control unit, responsible for processing various signals and data transmissions. It communicates with other devices through multiple interfaces, including a CAN bus for high-speed data exchange with other devices supporting the CAN protocol, RS485 for serial communication, and other interfaces that can connect to other devices requiring serial data transmission.

[0044] Time relays 32 are programmed to automatically disconnect the circuit after a set period of time. They work in conjunction with intermediate relays 31 to disconnect the circuit after a preset time, achieving a delayed automatic power-off function. Each time relay 32 is equipped with a pause button 321 and a reset button 322 to control its operating state. Indicator lights are also connected to the time relays 32 to clearly display the current operating status, such as running, paused, or completed. A relay is connected to the time relays 32 for switching the circuit via a control signal.

[0045] Intermediate relay 31 is controlled by time relay 32 and is used to actually cut off the power supply to the main circuit. When the intermediate relay receives a signal from the time relay, it performs the cutting-off action.

[0046] In use, connect the testing device to a power source via the three-in-one AC socket 54. Connect the battery pack to be tested to the testing device via the communication connection port 403.

[0047] Use the main control power supply mode selection switch 402 to set the appropriate power supply mode according to actual needs.

[0048] Configure the time relay 32 and set a preset delay time for automatic power-off. The pause button 321 can be used to pause the timing process when necessary, and the reset button 322 is used to reset the time relay.

[0049] Turn on the main control switch 40 to start supplying power to the device under test and start the timer relay. Monitor real-time data such as voltage, current, and temperature through the touch screen 7.

[0050] Temperature controller 5 monitors and adjusts the system operating temperature to ensure the safety of the testing environment. If necessary, the system can be connected to an external computer via the host computer connection port. When the time relay reaches the preset time point, it will trigger intermediate relay 31 to cut off the main circuit power supply and automatically stop the test. 401 can also be connected to an external computer to achieve remote control or data analysis.

[0051] The enclosure 1 is equipped with an embedded concealed handle 11, an aluminum alloy handle 12, and aluminum alloy chassis feet 13. The combination of the embedded concealed handle 11 and the aluminum alloy handle 12 allows each to leverage its advantages in different scenarios. For example, the embedded concealed handle 11 is preferred when delicate handling or aesthetically pleasing equipment display is required; while the aluminum alloy handle 12 can be used when frequent handling or higher strength requirements are needed. The aluminum alloy feet 13 provide stable support points, making the enclosure more stable when placed and reducing shaking caused by uneven ground.

[0052] like Figure 5As shown, a multifunctional mobile testing workbench includes a testing device and a mobile frame 8 as described above. The testing device is mounted on the mobile frame 8, and a battery pack 90 is placed on the mobile frame 8. A connection port is provided on the battery pack 90, and a cable connects the connection port to a slave control communication connection port 403.

[0053] The mobile rack 8 is also equipped with a display 81, which is electrically connected to the detection device. The display 81 can be connected to an operating computer, etc. The mobile rack 8 is also equipped with an island-style power socket 82 for power supply.

[0054] The mobile rack design allows the entire testing system to be easily moved between different locations. This is extremely convenient for applications requiring testing or maintenance in multiple locations. Since the system is integrated into a mobile platform, equipment deployment and preparation can be completed quickly, improving work efficiency.

[0055] By integrating all necessary components such as testing devices and battery packs, a one-stop testing platform is provided, reducing the time and complexity of setting up temporary testing environments.

[0056] It should be noted that the switching power supply, relay, main control module, port, switch, battery pack, etc. in this embodiment are all general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0057] The present invention has been described above by way of example, but the present invention is not limited to the specific embodiments described above. Any modifications or variations made based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A detection device for delayed automatic power-off, characterized in that: The device includes a housing (1), which has a storage space. The storage space contains a switching power supply (2) and a main control module (4). A time relay (32) is installed in the storage space. The time relay (32) is electrically connected to the switching power supply (2) and triggers the circuit to cut off after a preset time. An intermediate relay (31) is electrically connected to the time relay (32). The intermediate relay (31) is controlled by the time relay (32) and is used to cut off the main circuit power supply. The main control module (4) is electrically connected to the time relay (32).

2. The detection device for delayed automatic power-off according to claim 1, characterized in that: It also includes a temperature controller (5) and a touch screen (7), both of which are electrically connected to the main control module (4).

3. The detection device for delayed automatic power-off according to claim 1, characterized in that: An interface module is provided on the housing (1). The interface module includes a socket for providing power and signal transmission to the device under test, a socket for connecting a temperature sensor, and a socket for powering the detection device.

4. The detection device for delayed automatic power-off according to claim 3, characterized in that: The interface modules are a banana socket (51), an AC power output industrial socket (52), a T-type thermocouple socket (53), and a three-in-one integrated AC socket (54).

5. The detection device for delayed automatic power-off according to claim 3, characterized in that: The main control module (4) is equipped with a main control switch (40), a host computer connection port (401), a main control power supply mode selection switch (402), and a slave control communication connection port (403) to realize communication, local control, and mode switching.

6. The detection device for delayed automatic power-off according to claim 1, characterized in that: The enclosure (1) is equipped with an embedded concealed handle (11), an aluminum alloy handle (12), and aluminum alloy chassis feet (13).

7. A multifunctional mobile inspection workbench, characterized in that: Includes the detection device and mobile frame (8) as described in any one of claims 1-6, wherein the detection device is mounted on the mobile frame (8), a battery pack (90) is placed on the mobile frame (8), a connection port is provided on the battery pack (90), and the cable connects the connection port to the slave control communication connection port (403).

8. A multifunctional mobile inspection workbench according to claim 7, characterized in that: The mobile frame (8) is also equipped with a display (81), which is electrically connected to the detection device.

9. A multifunctional mobile inspection workbench according to claim 7, characterized in that: The time relay (32) is equipped with a pause button (321) and a reset button (322) to control the operating state of the time relay (32).

10. A multifunctional mobile inspection workbench according to claim 7, characterized in that: The mobile rack (8) is equipped with an island-style power socket (82) to provide power support for the entire system.

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