Electrical testing device for energy storage container

Abstract

The invention provides an electrical testing device for an energy storage container. The electrical testing device comprises a shell, a power supply unit, a communication docking unit and a testing unit, the power supply unit and the communication docking unit are arranged in the shell, the power supply unit is used for providing power supplies of various specifications for the to-be-tested electrical element, and the communication docking unit is used for realizing signal transmission between the to-be-tested electrical element and the test unit; and the test unit is detachably arranged on the shell, is electrically connected with the communication docking unit, and is used for carrying out communication read-write test and electrical performance detection on the to-be-tested electrical element. The power supply unit, the communication docking unit and the test unit are integrated in the integrated shell, so that on-site rapid test of various electrical elements in the energy storage container is realized.

Description

Technical Field

[0001] This invention relates to the field of containers, and more particularly to an electrical testing device for energy storage containers. Background Technology

[0002] In addition to the main battery storage products such as battery packs, battery management systems (BMS), power supply systems (PCS), and energy storage systems (EMS), energy storage containers typically also integrate various electrical components, including liquid cooling units, air conditioning, fire protection systems, lighting, video cameras, temperature and humidity control systems, water immersion systems, and dehumidifiers. These electrical components are connected to the BMS or EMS system according to the system design requirements, but this integration is usually performed by the container manufacturer. Therefore, after the energy storage container completes the integration of these electrical components and before it leaves the factory, the corresponding electrical components need to undergo power-on and communication function tests.

[0003] Currently, the common testing method used by container manufacturers is as follows: Testers, based on the drawings, first disconnect the cable terminals, then use loose cables to connect the electrical component under test to different power supplies, laptops, or multimeters before testing. This traditional testing method has many drawbacks: First, it is inefficient, requiring repeated work of finding, disconnecting, and connecting cables for each test, which is time-consuming and labor-intensive. Second, it is prone to errors; the numerous terminals and complex cables, especially when conducting batch testing of energy storage containers, easily lead to incorrect or missing connections, resulting in test failures or even equipment damage and safety accidents. Third, it poses safety hazards; exposed terminals and messy temporary cables increase the risk of electric shock and short circuits.

[0004] Therefore, there is an urgent need for an integrated testing device that can quickly and safely verify the power-on and communication functions of the electrical components inside an energy storage container. Summary of the Invention

[0005] The purpose of this invention is to solve the problems of low testing efficiency, easy operation errors, and safety hazards in existing testing methods for electrical components of energy storage containers.

[0006] This invention provides an electrical testing device for an energy storage container, comprising a housing, a power supply unit, a communication docking unit, and a testing unit; The power supply unit and the communication docking unit are disposed inside the housing. The power supply unit is used to provide power supply of various specifications to the electrical component under test, and the communication docking unit is used to realize signal transmission between the electrical component under test and the test unit. The test unit is detachably mounted on the housing and electrically connected to the communication docking unit, and is used to perform communication read / write tests and electrical performance tests on the electrical components under test; The power supply unit includes a first branch, a second branch, and a common branch. The first branch and the second branch are respectively used to connect to external power supplies of different specifications. The common branch is electrically connected to the first branch and the second branch to provide power output of various specifications.

[0007] Furthermore, the first branch is connected to a 380V three-phase AC power supply, and the second branch is connected to a 220V single-phase AC power supply.

[0008] Furthermore, the first branch includes a connected AC380V power input interface and a three-phase circuit breaker, the output terminals of which are respectively connected to a three-phase fuse and an AC380V to AC220V control transformer. The output terminal of the three-phase fuse is connected to the AC380V output module. The AC380V to AC220V control transformer is connected to the first single-phase circuit breaker and the first single-phase fuse, and then connected to the common branch.

[0009] Furthermore, the AC380V to AC220V control transformer is a 380V to 220V transformer, including a 380V input terminal and a 220V output terminal; The 380V input terminal is connected to the output terminal of the three-phase circuit breaker; The 220V output terminal is connected to the common branch through a first single-phase circuit breaker and a first single-phase fuse.

[0010] Furthermore, the second branch includes an AC220V power input interface, a second single-phase circuit breaker, and a second single-phase fuse connected in sequence. The output terminal of the second single-phase fuse is connected to the common branch.

[0011] Furthermore, the common branch includes an AC220V output module, a DC24V output module, a DC12V output module, and a power indicator light; The AC220V output module is connected to the first single-phase fuse and the second single-phase fuse respectively. The DC24V output module is connected to the first single-phase fuse and the second single-phase fuse respectively via an AC220V to DC24V switching power supply. The DC12V output module is connected to the first single-phase fuse and the second single-phase fuse respectively via an AC220V to DC12V switching power supply.

[0012] Furthermore, based on the power supply requirements of the electrical component under test and the specifications of the external power supply available on site, the first branch or the second branch can be selected. Select the appropriate output module in the common branch according to the rated voltage of the electrical component under test.

[0013] Furthermore, the communication docking unit includes multiple docking ports, which connect the electrical component under test to the test unit.

[0014] Furthermore, the testing unit includes a first testing device and a second testing device; The multiple docking ports include RJ45 docking ports, RS485 docking ports, and general docking port groups; The RJ45 docking port is connected to the first testing device, the RS485 docking port is connected to the first testing device through a serial port conversion module, and the general-purpose docking port group is connected to the second testing device.

[0015] Furthermore, the first testing device includes a laptop computer, and the second testing device includes a multimeter.

[0016] Furthermore, an operation panel is provided on one side of the housing; The control switch element of the power supply unit is located on the panel; The power output interface of the power supply unit and the docking interface of the communication docking unit are located on the panel. The test unit is detachably placed in the test piece holder of the panel.

[0017] Compared to existing technologies, this invention offers at least the following advantages: By integrating the power supply unit, communication docking unit, and testing unit into a single housing, it enables rapid on-site testing of various electrical components within the energy storage container. The power supply unit employs a dual-branch input design combined with a shared branch output, allowing for flexible adaptation to different external power supplies (AC380V or AC220V) on-site. It provides multiple power outputs (AC380V, AC220V, DC24V, DC12V, etc.) via the shared branch, meeting the power supply requirements of various electrical components under test. The communication docking unit provides multiple standard interfaces for signal transmission between the component under test and the testing unit. The testing unit features a detachable design for easy portability and replacement. The overall device is compact and easy to operate, improving the testing efficiency of electrical components within the energy storage container and reducing on-site debugging time and costs. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 embodiments of the present invention. For those skilled in the art, other drawings can be obtained as provided without creative effort.

[0019] Figure 1 This is a schematic diagram of the module of the electrical testing device for an energy storage container in one embodiment of the present invention; Figure 2 This is a schematic diagram of the power supply unit in the electrical testing device for an energy storage container according to one embodiment of the present invention; Figure 3 This is a wiring diagram of an AC380V to AC220V control transformer according to one embodiment of the present invention; Figure 4 This is a schematic diagram of the housing of an electrical testing device for an energy storage container according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the operation panel in the electrical testing device for an energy storage container according to one embodiment of the present invention.

[0020] Among them, 1-housing; 11-operation panel; 111-three-phase circuit breaker; 112-first single-phase circuit breaker; 113-second single-phase circuit breaker; 114-power indicator light; 115-power output interface; 121-connection port; 131-laptop card slot; 132-multimeter mounting card slot. Detailed Implementation

[0021] The present invention will now be described in more detail with reference to the accompanying drawings, which illustrate preferred embodiments of the invention. It should be understood that those skilled in the art can modify the invention described herein while still achieving its advantageous effects. Therefore, the following description should be understood as being broadly known to those skilled in the art and is not intended to limit the invention.

[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0023] The invention is described more specifically by way of example in the following paragraphs with reference to the accompanying drawings. The advantages and features of the invention will become clearer as explained below. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the invention.

[0024] This embodiment provides an electrical testing device for an energy storage container. Please refer to [link / reference]. Figures 1-5 It includes housing 1, power supply unit, communication docking unit and test unit.

[0025] The power supply unit and the communication docking unit are disposed inside the housing 1. The power supply unit is used to provide power supply of various specifications to the electrical component under test, and the communication docking unit is used to realize signal transmission between the electrical component under test and the test unit.

[0026] The test unit is detachably placed on the housing 1 and electrically connected to the communication docking unit, and is used to perform communication read / write tests and electrical performance tests on the electrical components under test.

[0027] The power supply unit includes a first branch, a second branch, and a common branch. The first branch and the second branch are respectively used to connect to external power supplies of different specifications. The common branch is electrically connected to the first branch and the second branch to provide power output of various specifications.

[0028] Specifically, the energy storage container electrical testing device of this embodiment comprises a housing 1, a power supply unit, a communication docking unit, and a testing unit. The housing 1 can be made of materials such as metal or high-strength plastic to provide necessary mechanical support and environmental protection. The power supply unit and the communication docking unit are located inside the housing 1. The power supply unit can consist of multiple independent power modules to meet the power supply requirements of the electrical component under test for different voltage levels and current magnitudes. The communication docking unit can consist of a series of physical interfaces and internal wiring; for example, it can include multiple universal terminal blocks for establishing a data link between the electrical component under test and the testing unit.

[0029] The power supply unit provides various power options for the electrical components under test. For example, it can provide 24V DC, 12V DC, 220V AC, and 380V AC to meet the power requirements of various electrical components inside the energy storage container. The power output specifications can be configured according to actual needs, for example, by manual switching or adjustment via a programmable controller.

[0030] The primary function of the communication interface unit is to enable signal transmission between the electrical component under test (DUT) and the testing unit. This unit acts as a signal bridge, allowing the testing unit to accurately send control commands to the DUT and receive its feedback data. For example, the communication interface unit can provide RS232, CAN bus, or Ethernet interfaces to support different communication protocols.

[0031] The test unit is designed to be detachably mounted on the housing 1 and electrically connected to the communication docking unit. This detachable design allows the test unit to be replaced or upgraded as needed. The test unit can be one or more independent test instruments, which connect to the electrical component under test (DUT) via the communication docking unit. The test unit is used to perform communication read / write tests and electrical performance checks on the DUT, such as testing whether the communication protocol of the electrical component is normal, whether the data transmission is accurate, and whether its electrical parameters such as voltage, current, and power meet the standards.

[0032] In this embodiment, the power supply unit includes a first branch, a second branch, and a common branch. The first and second branches are used to connect to external power supplies of different specifications. For example, the first branch can be designed to connect to a high-voltage AC power supply, while the second branch is designed to connect to a medium-voltage AC power supply. This allows the testing device to adapt to different field power supply conditions. The common branch is electrically connected to the first and second branches to provide power output of various specifications.

[0033] Furthermore, the first branch is connected to a 380V three-phase AC power supply, and the second branch is connected to a 220V single-phase AC power supply.

[0034] Furthermore, the first branch includes a connected AC380V power input interface and a three-phase circuit breaker 111. The output terminals of the three-phase circuit breaker 111 are respectively connected to a three-phase fuse and an AC380V to AC220V control transformer.

[0035] The output terminal of the three-phase fuse is connected to an AC380V output module.

[0036] The AC380V to AC220V control transformer is connected to the first single-phase circuit breaker 112 and the first single-phase fuse, and then connected to the common branch.

[0037] Specifically, in this embodiment, the first branch is an AC380V branch, connected to an AC380V three-phase power supply. This allows the power supply unit to utilize the high-voltage, high-power power supplies commonly found in industrial environments, providing a stable input for electrical components under test that require higher voltage or larger current. The second branch is an AC220V branch, further enhancing the versatility of the power supply unit. In certain specific application scenarios or regions, AC220V power supplies may be more common or readily available. By providing this option, the test equipment can adapt to a wider range of power environments, reducing dependence on specific power infrastructure and improving the deployment flexibility of the equipment.

[0038] like Figure 1 As shown, after the AC380V branch is connected to an external AC380V three-phase power supply, the output terminal of the AC380V input interface is unidirectionally connected to the input terminal of the three-phase circuit breaker 111. One output terminal of the three-phase circuit breaker 111 is sequentially connected to the three-phase fuse and the AC380V output interface module in a unidirectional manner, realizing the direct output of the AC380V power supply. The other output terminal is sequentially connected to the AC380V to AC220V control transformer, the first single-phase circuit breaker 112, and the first single-phase fuse in a unidirectional manner, and then connected in parallel to the common branch, thereby realizing the conversion output of the power supply. It can also power the test unit through a dedicated power adapter. The power indicator light 114 is used to indicate the power start / stop status of the test device.

[0039] In one possible embodiment of the invention, the selected three-phase circuit breaker 111 is a 4P type, serving as the main switch for AC 380V input and overload protection. The selected first single-phase circuit breaker 112 is a 2P type, serving as output protection and switching.

[0040] Furthermore, the AC380V to AC220V control transformer is a 380V to 220V transformer, including a 380V input terminal and a 220V output terminal.

[0041] The 380V input terminal is connected to the output terminal of the three-phase circuit breaker 111.

[0042] The 220V output terminal is connected to the common branch through the first single-phase circuit breaker 112 and the first single-phase fuse.

[0043] Specifically, the three-phase circuit breaker 111 is an important electrical protection device. Its function is to automatically and quickly disconnect the three-phase power supply when a circuit experiences overload, short circuit, or undervoltage faults, thereby protecting the safety of equipment and operators in downstream circuits. This circuit breaker can be a three-phase air circuit breaker or a molded case circuit breaker with instantaneous tripping and thermomagnetic tripping functions. Its rated current and breaking capacity should be reasonably selected according to the actual load conditions of the AC380V power supply. The three-phase fuse, as another overcurrent protection device, works in conjunction with the three-phase circuit breaker 111. When the current in the circuit exceeds a predetermined value, the fuse element quickly melts, cutting off the circuit and providing faster or more precise short-circuit protection. Ceramic tube or knife fuses can be selected, and their rated current and breaking capacity must be adapted to the load characteristics of the AC380V output module to achieve reliable protection under extreme fault conditions.

[0044] In this embodiment, the AC380V to AC220V control transformer is a 380V to 220V transformer. The 380V to 220V transformer in this embodiment can be a control transformer with a rated capacity of 5000VA or higher, and a rated output capacity of not less than 5000VA. Its basic wiring principle is as follows: Figure 3 As shown, the input terminals are taken from any two phase lines of the three-phase power supply (e.g., L1 and L2) and connected to the two terminals of the primary winding of the control transformer, but not to the neutral line N. The output terminal is directly connected to the secondary winding of the control transformer, thus outputting a standard single-phase AC220V power signal, with one end connected to the live wire L and the other to the neutral wire N. Furthermore, the casing of the control transformer must be reliably grounded to ensure electrical safety.

[0045] Furthermore, the second branch includes an AC220V power input interface, a second single-phase circuit breaker 113, and a second single-phase fuse connected in sequence.

[0046] The output terminal of the second single-phase fuse is connected to the common branch.

[0047] Specifically, the second branch, serving as another power input path for the power supply unit, primarily functions to provide an external power input method different from the first branch, enhancing the device's adaptability to various power supply environments. The AC220V power input interface is used for physical connection to an external AC220V power source, enabling the device to conveniently and safely receive standard AC220V AC power. Its design should comply with electrical safety regulations and be able to withstand the corresponding current and voltage. The second single-phase circuit breaker 113, as a circuit protection element, is installed after the AC220V power input interface to automatically disconnect the power supply in the event of an overload or short-circuit fault, protecting the device and operator safety. It also provides a manual power disconnection function for easy maintenance and operation. The second single-phase fuse is connected in series with the second single-phase circuit breaker 113 as secondary protection. In the event of extreme overcurrent conditions such as a short circuit, it quickly disconnects the circuit by fusing itself, preventing the fault from escalating and further ensuring the device's electrical safety. This sequential connection method allows current to flow from the AC220V power input interface through the second single-phase circuit breaker 113 and the second single-phase fuse, following a preset protection sequence and path to the common branch. The current is then connected in parallel to the common branch, thus achieving power supply conversion and output. A dedicated power adapter can be used to power the test unit, and the power indicator light 114 displays the power on / off status of the test device.

[0048] In one possible embodiment of the invention, the selected second single-phase circuit breaker 113 is also of 2P specification, serving as the main switch for AC220 input and overload protection.

[0049] Furthermore, the common branch includes an AC220V output module, a DC24V output module, a DC12V output module, and a power indicator light 114.

[0050] The AC220V output module is connected to the first single-phase fuse and the second single-phase fuse, respectively.

[0051] The DC24V output module is connected to the first single-phase fuse and the second single-phase fuse respectively via an AC220V to DC24V switching power supply.

[0052] The DC12V output module is connected to the first single-phase fuse and the second single-phase fuse respectively via an AC220V to DC12V switching power supply.

[0053] As the core output section of the power supply unit, the common branch is designed to integrate electrical energy from different input branches and convert it into various standard output forms required by the electrical component under test. The AC220V output module provides a standard AC 220V power output to meet the power supply needs of most general electrical equipment. The DC24V output module is specifically designed to provide DC 24V power output and is widely used in industrial control systems, sensors, actuators, and specific communication equipment. The DC12V output module provides DC 12V power output and is suitable for automotive electronics, low-power control circuits, lighting systems, and various small electronic products. The power indicator light 114 serves as an intuitive user interface element to display the operating status of the common branch or a specific output module. For example, it can indicate whether the power is on, whether the output is normal, or whether a fault exists. It is typically implemented using LEDs, conveying different status information through different colors or flashing patterns, thereby improving operational convenience and safety.

[0054] The AC220V output module is connected to both a first single-phase fuse and a second single-phase fuse, allowing it to flexibly draw power from either the first or second branch. This design provides redundancy and selectivity in power input, enabling users to choose the appropriate input branch to power the AC220V output module based on the available power supply type and load requirements. The fuses provide necessary overcurrent protection for the AC220V output module.

[0055] The DC24V output module obtains power through an AC220V to DC24V switching power supply. The input terminals of this transformer are connected to a first single-phase fuse and a second single-phase fuse, respectively. Whether the power supply is from an AC380V input stepped down to 220V via the first branch, or directly from an AC220V input via the second branch, it can be converted to the required DC24V output by this AC220V to DC24V switching power supply. Similar to the DC24V output module, the DC12V output module also obtains power through an independent AC220V to DC12V switching power supply. The input terminals of this transformer are also connected to a first single-phase fuse and a second single-phase fuse, allowing the DC12V output module to obtain 220V AC power from either the first or second branch and generate a stable DC12V output through its own conversion circuit, avoiding mutual interference between different DC output modules.

[0056] Furthermore, based on the power supply requirements of the electrical component under test and the specifications of the external power supply available on site, the first branch or the second branch can be selected.

[0057] Select the appropriate output module in the common branch according to the rated voltage of the electrical component under test.

[0058] Specifically, the first and second branches of the power supply unit can be selected for external input based on the power supply requirements of the electrical component under test and the specifications of the available external power supply on site. For example, if the maximum power supply voltage of the electrical component under test requires a three-phase AC380V power supply, then the AC380V branch should be selected to input the external power signal; conversely, if the maximum power supply voltage of the electrical component under test requires a single-phase AC220V power supply, then the AC220V branch should be selected to input the external power signal.

[0059] After confirming the external power supply connection, the operator or system needs to further select the most suitable output module from the common branch, such as AC220V, DC24V, or DC12V, based on the rated voltage of the electrical component under test. For example, if the rated voltage of the electrical component under test is DC24V, then a DC24V output module should be selected for power supply. This selection can be done manually via physical buttons, knobs, or a touchscreen interface on the operation panel 11, or automatically by linking the test unit and the power supply unit, ensuring that the electrical component under test receives an accurate and stable rated voltage.

[0060] Furthermore, the communication docking unit includes multiple docking ports 121, which connect the electrical component under test to the test unit.

[0061] Furthermore, the testing unit includes a first testing device and a second testing device.

[0062] The plurality of docking ports 121 include an RJ45 docking port 121, an RS485 docking port 121, and a group of general-purpose docking ports 121.

[0063] The RJ45 docking port 121 is connected to the first test device, the RS485 docking port 121 is connected to the first test device through a serial port conversion module, and the communication docking port 121 group is connected to the second test device.

[0064] In one possible embodiment of the present invention, the first testing device includes a laptop computer, and the second testing device includes a multimeter.

[0065] Specifically, such as Figure 1As shown, the communication port of the electrical component under test (DUT) is bidirectionally connected to the laptop in the test unit via the RJ45 network port 121, or bidirectionally connected to the RS485 interface to USB module and the laptop in the test unit via the RS485 port 121, or bidirectionally connected to the universal connector in the test unit via the general-purpose port 121 group. Specifically, depending on the communication method of the DUT, the corresponding port 121 of the communication docking unit can be selected, such as the RJ45 network port 121 or the RS485 port 121. When the electrical component under test (DUT) uses RJ45 Ethernet communication, the DUT's RJ45 port is directly connected to the RJ45 port of the laptop in the test unit via RJ45 network docking port 121 using a network cable to achieve communication read / write testing of the DUT. When the DUT uses RS485 serial communication, the DUT's RS485 serial port is first connected in the order of A, B, G via RS485 docking port 121 to the RS485 interface to USB module and the USB port of the laptop in the test unit to achieve communication read / write testing of the DUT.

[0066] In addition, the communication docking unit has 121 sets of universal docking ports, which can be used with a multimeter in the testing unit to check the continuity of power supply and various signal cables, as well as the normally open / normally closed output signals of switch quantities. For example, if a water immersion sensor uses switch contacts to output alarm signals, then when simulating a water immersion short circuit fault, the continuity between the sensor's switch signal line and the COM common terminal can be measured using the 121 sets of universal docking ports and a multimeter to determine the fault.

[0067] Furthermore, an operation panel 11 is provided on one side of the housing 1.

[0068] The control switch element of the power supply unit is located on the panel.

[0069] The power output interface 115 of the power supply unit and the docking interface of the communication docking unit are located on the panel.

[0070] The test unit is detachably placed in the test piece holder of the panel.

[0071] Specifically, such as Figures 4-5 The diagram shows an energy storage container electrical testing device having the aforementioned power supply unit, communication docking unit, and testing unit. The various electrical modules in the power supply unit and the various electrical modules in the communication docking unit are integrated and fixed inside a testing device housing 1. The laptop computer and multimeter of the testing unit are installed on the upper exterior of the testing device housing 1 and can be disassembled and moved as needed.

[0072] The power supply unit and communication docking unit are located on the upper left and right sides of the front panel of the test device housing 1, respectively. The power supply unit area exposes and fixes the three-phase circuit breaker 111, the first single-phase circuit breaker 112, the second single-phase circuit breaker 113, the power indicator light 114, and various power output interfaces 115. The communication docking unit area has various docking ports 121, which are exposed through openings in the front panel for easy wiring, operation, and inspection. In use, testers can operate the three-phase circuit breaker 111 and the first single-phase circuit breaker 112 to output AC 380V branch power, or operate the second single-phase circuit breaker 113 to output AC 220V branch power. The power indicator light 114 illuminates when the branch is powered. Furthermore, the test unit area on the panel includes a laptop computer mounting bracket 131 and a multimeter mounting bracket 132 for easy placement, fixation, and subsequent operation and testing.

[0073] In summary, the energy storage container electrical testing device of this invention integrates power supply, communication, and testing into one unit. Furthermore, all power output interfaces and communication ports can utilize various commercially available one-to-one male-female connectors or terminals. This effectively avoids repeated disconnection and reconnection of terminals and cables during actual testing, as well as exposed terminals and messy temporary wiring, further reducing the risk of cable misconnections, omissions, short circuits, and electric shock. In addition, all the different specifications of one-to-one male-female connectors or terminals used can be quickly replaced according to different project requirements, further improving the applicability of the testing device.

[0074] The above examples illustrate the present invention only to aid in understanding it and are not intended to limit the scope of the invention. Those skilled in the art can make various simple deductions, modifications, or substitutions based on the principles of this invention.

Claims

1. An energy storage container electrical testing apparatus, comprising: Includes housing, power supply unit, communication docking unit, and testing unit; The power supply unit and the communication docking unit are disposed inside the housing. The power supply unit is used to provide power supply of various specifications to the electrical component under test, and the communication docking unit is used to realize signal transmission between the electrical component under test and the test unit. The test unit is detachably mounted on the housing and electrically connected to the communication docking unit, and is used to perform communication read / write tests and electrical performance tests on the electrical components under test; The power supply unit includes a first branch, a second branch, and a common branch. The first branch and the second branch are respectively used to connect to external power supplies of different specifications. The common branch is electrically connected to the first branch and the second branch to provide power output of various specifications.

2. The electrical testing device for energy storage containers as described in claim 1, characterized in that, The first branch is connected to a 380V three-phase AC power supply, and the second branch is connected to a 220V single-phase AC power supply.

3. The electrical testing device for energy storage containers as described in claim 2, characterized in that, The first branch includes a connected AC380V power input interface and a three-phase circuit breaker. The output terminals of the three-phase circuit breaker are respectively connected to a three-phase fuse and an AC380V to AC220V control transformer. The output terminal of the three-phase fuse is connected to the AC380V output module. The AC380V to AC220V control transformer is connected to the first single-phase circuit breaker and the first single-phase fuse, and then connected to the common branch.

4. The electrical testing device for energy storage containers as described in claim 3, characterized in that, The AC380V to AC220V control transformer is a 380V to 220V transformer, including a 380V input terminal and a 220V output terminal; The 380V input terminal is connected to the output terminal of the three-phase circuit breaker; The 220V output terminal is connected to the common branch through a first single-phase circuit breaker and a first single-phase fuse.

5. The electrical testing device for energy storage containers as described in claim 4, characterized in that, The second branch includes an AC220V power input interface, a second single-phase circuit breaker, and a second single-phase fuse connected in sequence. The output terminal of the second single-phase fuse is connected to the common branch.

6. The electrical testing device for energy storage containers as described in claim 5, characterized in that, The common branch includes an AC220V output module, a DC24V output module, a DC12V output module, and a power indicator light; The AC220V output module is connected to the first single-phase fuse and the second single-phase fuse respectively. The DC24V output module is connected to the first single-phase fuse and the second single-phase fuse respectively via an AC220V to DC24V switching power supply. The DC12V output module is connected to the first single-phase fuse and the second single-phase fuse respectively via an AC220V to DC12V switching power supply.

7. The electrical testing device for energy storage containers as described in claim 6, characterized in that, Select the first branch or the second branch based on the power supply requirements of the electrical component under test and the specifications of the external power supply available on site. Select the appropriate output module in the common branch according to the rated voltage of the electrical component under test.

8. The electrical testing device for energy storage containers as described in claim 1, characterized in that, The communication docking unit includes multiple docking ports, which connect the electrical component under test to the test unit.

9. The electrical testing device for energy storage containers as described in claim 8, characterized in that, The testing unit includes a first testing device and a second testing device; The multiple docking ports include RJ45 docking ports, RS485 docking ports, and general docking port groups; The RJ45 docking port is connected to the first testing device, the RS485 docking port is connected to the first testing device through a serial port conversion module, and the general-purpose docking port group is connected to the second testing device.

10. The electrical testing device for an energy storage container as described in claim 9, characterized in that, The first testing device includes a laptop computer, and the second testing device includes a multimeter.

11. The electrical testing device for an energy storage container as described in claim 1, characterized in that, An operation panel is provided on one side of the housing; The control switch element of the power supply unit is located on the panel; The power output interface of the power supply unit and the docking interface of the communication docking unit are located on the panel. The test unit is detachably placed in the test piece holder of the panel.

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