Universal test cabinet for communication base station battery

Abstract

The invention relates to the technical field of battery testing, in particular to a universal test cabinet for a communication base station battery, which comprises a sealing cabinet, a jig frame is mounted in the sealing cabinet, a push-down cylinder is mounted on the jig frame, the lower end of the jig frame is in guide connection with a push-down plate, and the push-down plate is in power connection with the push-down cylinder. A locking clamping seat is arranged at the lower end of the lower push plate, the locking clamping seat is detachably connected with a first workpiece test part, and a large opening door for taking and placing the first workpiece test part covers the rear part of the sealing cabinet in a sealing manner; by arranging the detachable first workpiece test part and the detachable second workpiece test part, different types of test modules can be replaced according to different test requirements, the test requirements of various communication base station batteries are met, and the application range of the test cabinet is widened. Through cooperation of the jig frame, the lower push plate, the workpiece positioning plate and other structures, accurate positioning of the battery in the testing process is ensured, and the testing accuracy is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of battery testing, and particularly to a general-purpose test cabinet for communication base station batteries. Background Art

[0002] In the communication field, the stable operation of communication base stations is crucial. As the backup power supply of base stations in case of mains power interruption, the performance and reliability of communication base station batteries directly affect the continuity of communication services. To ensure the quality and performance of communication base station batteries, comprehensive and strict detection is required. The detection items include cell temperature test, cell under-voltage test, cell charging voltage test, cell over-voltage test, total cell voltage test, cell balancing current test, BMS ambient temperature test, output dry contact test, buzzer test, etc.

[0003] Traditional testing methods for communication base station batteries have many drawbacks. On the one hand, there are numerous such test items. If a decentralized testing method is adopted, not only is the efficiency low, but also the battery needs to be transported multiple times, increasing the battery handling process. This not only consumes labor and time costs, but also may damage the battery during handling. At the same time, the frequent plugging and unplugging during the battery testing process easily leads to wear of the battery interface, reducing the service life of the interface and the stability of the connection, and thus affecting the accuracy of the test results.

[0004] To solve the above problems, test fixtures that integrate multiple project tests have emerged in the industry, achieving the purpose of one-stop testing. Such integrated test fixtures can detect multiple test items simultaneously, greatly improving the test efficiency, reducing the test time, and reducing the risks brought by multiple handling and plugging.

[0005] However, the existing test fixtures still have obvious defects. Since there are various different models of products in the communication base station battery market, there are certain differences in the number of interfaces, interface positions, and overall dimensions of different models of communication base station batteries. Currently, the structures of the test fixtures are unified and cannot flexibly adapt to the diverse requirements of these different models of batteries. This results in having to specifically set up test fixtures with different structures for different models of communication base station batteries. This undoubtedly greatly increases the test cost, not only requiring a large amount of funds for the research and development and production of different test fixtures, but also occupying more storage space to store these different fixtures. At the same time, frequently replacing test fixtures with different structures will also reduce the test efficiency and affect the entire detection process of communication base station batteries.

[0006] Therefore, it is of great practical significance and market demand to develop a general-purpose test fixture that can adapt to various different models of communication base station batteries, does not require frequent replacement of the fixture structure, and can be flexibly adjusted to meet the requirements of different battery interface numbers, positions, and dimensions. Summary of the Invention

[0007] The present invention aims to overcome the above deficiencies and provides a technical solution to solve the above problems.

[0008] A general-purpose test cabinet for a communication base station battery includes a sealed cabinet. Inside the sealed cabinet, a fixture rack is installed. A push-down cylinder is installed on the fixture rack. The lower end of the fixture rack is connected to a push-down plate in a guiding manner, and the push-down plate is power-connected to the push-down cylinder. A locking chuck is arranged at the lower end of the push-down plate. The locking chuck is detachably connected to a first workpiece test component. A large-mouth door for taking and placing the first workpiece test component is hermetically covered at the rear of the sealed cabinet. A slide rail assembly is further arranged inside the sealed cabinet. A positioning base plate is installed on the slide rail assembly. A sliding door connected to the positioning base plate is arranged at the front of the sealed cabinet. A front push cylinder for pushing the positioning base plate to move is installed inside the sealed cabinet. A workpiece positioning plate for positioning a workpiece is detachably installed on the positioning base plate. Second workpiece test components are slidably connected to both sides of the workpiece positioning plate. When the sliding door is in the closed state, the workpiece positioning plate is directly below the first workpiece test component. A side driving force unit for pushing the second workpiece test component to dock with the workpiece is installed inside the sealed cabinet. A tension spring for driving the second workpiece test component to disengage from the workpiece is arranged on the workpiece positioning plate.

[0009] Preferably, the fixture rack includes a fixture bottom plate, two fixture side plates installed on both sides of the fixture bottom plate, and a fixture top plate fixedly arranged between the two fixture side plates. The push-down cylinder is installed on the fixture top plate. The push-down plate is connected to the lower end of the fixture top plate in a guiding manner. The slide rail assembly, the front push cylinder, and the side driving force unit are all installed on the fixture bottom plate.

[0010] Preferably, a middle plate is suspended and installed on the fixture side plate. A guiding rod is arranged between the middle plate and the fixture top plate. The push-down plate is connected to the guiding rod in a guiding manner. A first buffer for docking with the middle plate is further installed on the push-down plate.

[0011] Preferably, the locking chuck includes two C-shaped strip plates fixedly installed at the lower end of the push-down plate and corresponding to each other. A longitudinal tightening knob and a transverse tightening knob are threadedly connected to the C-shaped strip plates. The first workpiece test component enters the sealed cabinet along the large-mouth door and is guided to dock between the two C-shaped strip plates. The first workpiece test component is tightened and fixed at the lower end of the push-down plate through the transverse tightening knob and the longitudinal tightening knob.

[0012] Preferably, the first workpiece test component includes a quick-release plate guided to dock between the two C-shaped strip plates, multiple connecting columns connected to the lower end of the quick-release plate and evenly distributed, a first quick-change plate fixed to the quick-release plate through the connecting columns, and a first test head arranged on the first quick-change plate for testing the workpiece.

[0013] Preferably, at least one positioning pin is further provided at the lower end of the first quick-change plate, and a positioning hole seat docking with the positioning pin is installed on the workpiece positioning plate.

[0014] Preferably, the slide rail assembly includes two pairs of guide rail sliders fixedly installed in the sealed cabinet, two sliding rails respectively slidably connected to the two pairs of guide rail sliders, a limit block arranged on one of the sliding rails, and a second buffer arranged in the sealed cabinet and corresponding to the limit block. The sliding of the sliding rail is limited by the docking of the limit block and the second buffer.

[0015] Preferably, the workpiece positioning plate is provided with a right-angle block for fixing the workpiece. After the workpiece is placed on the workpiece positioning plate, its corner positions are fixed by the right-angle block. A positioning rod is also provided on the workpiece positioning plate. A positioning hole corresponding to the positioning rod is opened on the positioning substrate. The workpiece positioning plate is positioned on the positioning substrate by the cooperation between the positioning rod and the positioning hole. After the positioning rod is docked with the positioning hole, its lower end extends to the lower end of the positioning substrate. A marble that is clamped to the lower end of the positioning substrate is provided at the position where the positioning rod extends out of the lower end of the positioning substrate.

[0016] Preferably, the second workpiece testing component includes a first linear guide rail assembly mounted on the workpiece positioning plate, a fixed seat slidably connected to the workpiece positioning plate through the first linear guide rail assembly, a second quick-change plate mounted on the fixed seat, and a second test head arranged on the second quick-change plate for testing the workpiece. The tension spring is horizontally connected between the fixed seat and the workpiece positioning plate. When the sliding door is closed, the side pushing force unit abuts against the fixed seat.

[0017] Preferably, the side thrust force unit includes a pushing cylinder fixedly installed in the sealed cabinet, a second linear guide assembly installed at the lower end of the middle plate, a side thrust block slidably connected to the lower end of the middle plate through the second linear guide assembly, and a corner piece hinged on the piston end of the pushing cylinder and between the side thrust blocks. The pushing cylinder drives the side thrust block to move laterally along the second linear guide assembly through the transmission of the corner piece, so that the side thrust block can complete the operation of resisting the fixed seat and then driving the fixed seat to move along the direction of the first linear guide assembly.

[0018] Compared with the prior art, the present invention has the following beneficial effects: By setting the detachable first workpiece test component and second workpiece test component, different types of test modules can be replaced according to different test requirements, adapting to the test requirements of various communication base station batteries and improving the usage range of the test cabinet. The cooperation of structures such as the fixture rack, the downward pushing plate, and the workpiece positioning plate ensures the accurate positioning of the battery during the test and guarantees the accuracy of the test. At the same time, the setting of the slide rail assembly ensures the smooth movement of the positioning substrate, further improving the positioning accuracy. Combined with the forward pushing cylinder, it can realize the automatic opening and closing operation of the push-pull door, facilitating the taking and placing operation of the battery to be tested.

[0019] The second workpiece test component completes the docking and detachment operations with the battery to be tested by using the side driving force unit set in the sealed cabinet in combination with the tension spring, enabling the downward pushing cylinder, the forward pushing cylinder, and the side driving force unit to be integrated in the sealed cabinet without the need for corresponding replacement according to different battery models. It cleverly realizes multi-port docking to achieve multi-project tests while facilitating the disassembly and replacement of the first workpiece test component, the second workpiece test component, and the workpiece positioning plate, thus simplifying the complexity of replacement and achieving the operation purpose of quick replacement.

[0020] The additional aspects and advantages of the present invention will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present invention. Brief Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 is a schematic structural diagram of the communication base station battery test system of the present invention; Figure 2 is a schematic structural diagram of one perspective of the present invention; Figure 3 is a schematic structural diagram of another perspective of the present invention; Figure 4 is a schematic structural diagram of the present invention after removing the sealed cabinet; Figure 5 is the present invention Figure 4 a schematic structural diagram of the fixture rack and the mechanisms connected to the upper part of the fixture rack in the present invention; Figure 6 is the present invention Figure 5 front structural schematic diagram; Figure 7It is a schematic structural diagram of each mechanism corresponding to the workpiece positioning plate and the second workpiece testing component provided in the present invention; Figure 8 It is a schematic structural diagram of the battery to be tested, the positioning substrate, and the workpiece positioning plate provided with the second workpiece testing component in a disassembled state in the present invention; Figure 9 It is the present invention Figure 8 A schematic structural diagram of the position A in; Figure 10 It is the present invention Figure 8 A schematic structural diagram of the position B in.

[0023] The reference numerals and names in the figure are as follows: Battery 1 to be tested, sealed cabinet 10, large-mouth door 11, front push cylinder 12, fixture rack 20, lower push cylinder 21, lower push plate 22, fixture bottom plate 23, fixture side plate 24, fixture top plate 25, middle plate 26, guide rod 27, first buffer 28, locking clamp seat 30, C-shaped strip plate 31, longitudinal tightening knob 32, transverse tightening knob 33, first workpiece testing component 40, quick-release plate 41, connecting column 42, first quick-change plate 43, first test head 44, positioning pin 45, positioning hole seat 46, slide rail assembly 50, guide rail slider 51, sliding guide rail 52, limit block 53, second buffer 54, positioning substrate 60, push-pull door 61, workpiece positioning plate 62, tension spring 63, right-angle block 64, positioning insertion rod 65, positioning hole 66, ball 67, second workpiece testing component 70, first linear guide rail assembly 71, fixed seat 72, second quick-change plate 73, second test head 74, side driving force unit 80, top push cylinder 81, second linear guide rail assembly 82, side push block 83, corner piece 84. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present invention will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0025] In an embodiment of the present invention, a general-purpose test cabinet for communication base station batteries is proposed, which is used to test communication base station batteries. Based on this general-purpose test cabinet for communication base station batteries, a corresponding communication base station battery test system is configured. The communication base station battery test system aims to comprehensively and accurately test various performance indicators of the battery to ensure that the battery can supply power to the communication base station stably and reliably. As the carrier of the test, the general-purpose test cabinet carries the battery pack to be tested and works in cooperation with other test instruments. The test instruments include an industrial control computer, a programmable low-voltage power supply, a battery simulator, a CAN communication box, a network switch, a test control board, a UPS (uninterruptible power supply), a code reader, etc. Through the cooperation of various test instruments, various test items are completed; the functions and connection relationships of various test instruments are as follows: As Figure 1 shown, the industrial control computer serves as the core control and data processing center of the entire test system, responsible for coordinating the work of each test instrument, controlling the progress of the test according to the preset test process, analyzing, storing and displaying the collected data, and generating a test report. The industrial control computer is connected to other devices with network communication functions through a network switch to achieve data interaction and send control instructions, such as a battery simulator, a programmable low-voltage power supply, a test control board, etc. At the same time, it is connected to the CAN communication box to obtain battery management system-related data transmitted through the CAN bus.

[0026] The programmable low-voltage power supply provides accurately controllable voltage and current outputs for battery testing, simulates different power supply scenarios, and meets the charging and power supply requirements of the battery in different test items. The programmable low-voltage power supply is connected to the industrial control computer through a network switch, receives the control instructions of the industrial control computer, and adjusts the output voltage and current parameters. At the same time, it is connected to the battery pack in the general-purpose test cabinet to provide power for the battery.

[0027] The battery simulator simulates the electrical characteristics of the battery, replaces the real battery for testing, can simulate the output characteristics of different types and specifications of batteries and complex working conditions, and is used to test the adaptability and compatibility of related equipment to the battery. The battery simulator is connected to the industrial control computer through a network switch and simulates the corresponding battery characteristics according to the instructions of the industrial control computer. It is connected to the general-purpose test cabinet to simulate the electrical connection between the battery and the test system.

[0028] The CAN communication box realizes CAN bus communication between the test equipment and the battery management system, is responsible for data transmission, parsing and conversion, and ensures smooth data interaction between different devices. One end of the CAN communication box is connected to the BMS in the general-purpose test cabinet through the CAN bus to obtain the battery status data collected by the BMS; the other end is connected to the industrial control computer to transmit the data to the industrial control computer for processing.

[0029] The network switch constructs the local area network of the test system, realizes the interconnection and data exchange between devices, and provides a stable network communication environment for the devices. The network switch is connected to devices with network communication functions such as industrial control computers, programmable low-voltage power supplies, battery simulators, cameras, and microphones, forming a network topology structure.

[0030] The test control board is responsible for collecting various parameters of the battery, controlling the charging and discharging process of the battery, realizing the automation of the test process, and having a protection function to prevent abnormal conditions such as overvoltage, overcurrent, and overheating of the battery. The test control board is directly connected to the battery pack in the general-purpose test cabinet to collect relevant parameters of the battery. It is connected to the industrial control computer through the network switch, transmits the collected data to the industrial control computer, and receives the control instructions of the industrial control computer.

[0031] When the mains power is interrupted, the UPS provides uninterrupted power supply for the devices in the test system, ensures the continuity of the test work, and at the same time stabilizes and filters the input mains power. The UPS is connected to the mains power and each device in the test system to provide stable power for the devices.

[0032] The barcode reader reads the identification such as QR code, barcode, or RFID code on the battery, obtains information such as the model, specification, production date, and serial number of the battery, and realizes the identification and data association of the battery. The barcode reader is connected to the industrial control computer through the interface and transmits the read information to the industrial control computer.

[0033] Combined with various test instruments, the following test items are equipped: Cell temperature test: The test control board collects cell temperature data through the temperature sensor and transmits the data to the industrial control computer for analysis and processing.

[0034] Cell undervoltage test, cell normal voltage test, cell overvoltage test, cell total voltage test: The test control board collects the voltage data of the cell, and the programmable low-voltage power supply can adjust the output voltage according to the test requirements to simulate different voltage conditions. The industrial control computer judges and analyzes the collected voltage data.

[0035] Cell balancing current test: The test control board collects the cell balancing current data and transmits the data to the industrial control computer. The industrial control computer judges the cell balancing situation according to the preset standard.

[0036] BMS ambient temperature test: The test control board collects the BMS ambient temperature data through the temperature sensor and transmits it to the industrial control computer.

[0037] Output dry contact test: The test control board is responsible for detecting the state of the output dry contact and transmitting the result to the industrial control computer.

[0038] Please refer to Figures 2 - 10, this technical solution sets up a general - purpose test cabinet for communication base station batteries based on a communication base station battery test system. The communication base station battery with corresponding connection ports on the upper, left, and right sides of the test includes a sealed cabinet 10. Inside the sealed cabinet 10, a fixture rack 20 is installed. On the fixture rack 20, a downward - pushing cylinder 21 is installed. The lower end of the fixture rack 20 is guidingly connected to a downward - pushing plate 22, and the downward - pushing plate 22 is power - connected to the downward - pushing cylinder 21. At the lower end of the downward - pushing plate 22, a locking clamp seat 30 is provided. The locking clamp seat 30 is detachably connected to a first workpiece test component 40. At the rear of the sealed cabinet 10, a large - mouth door 11 for taking and placing the first workpiece test component 40 is hermetically covered. Inside the sealed cabinet 10, a slide - rail assembly 50 is further provided. On the slide - rail assembly 50, a positioning base plate 60 is installed. At the front of the sealed cabinet 10, a sliding door 61 connected to the positioning base plate 60 is provided. Inside the sealed cabinet 10, a forward - pushing cylinder 12 for pushing the positioning base plate 60 to move is also installed. On the positioning base plate 60, a workpiece positioning plate 62 for positioning the workpiece is detachably installed, and on both sides of the workpiece positioning plate 62, a second workpiece test component 70 is slidably connected. When the sliding door 61 is in the closed state, the workpiece positioning plate 62 is directly below the first workpiece test component 40. Inside the sealed cabinet 10, a side - driving force unit 80 for pushing the second workpiece test component 70 to dock with the workpiece is installed, and on the workpiece positioning plate 62, a tension spring 63 for driving the second workpiece test component 70 to disengage from the workpiece is provided.

[0039] The general - purpose test cabinet is provided with a sealed cabinet 10, which can effectively isolate the interference of external environmental factors, provide a stable environment for battery testing, and ensure the reliability of test results. The sliding door 61 and the large - mouth door 11 are respectively configured at the front and rear of the sealed cabinet 10. The sliding door 61 facilitates the replacement, installation, maintenance of the second workpiece test component 70 and the taking and placing of the battery. The large - mouth door facilitates the replacement, installation, and maintenance of the first workpiece test component 40. During use, according to the structural characteristics of the battery 1 to be tested, the corresponding first workpiece test component 40 and second workpiece test component 70 are set. The first workpiece test component 40 and the second workpiece test component 70 are connected to the communication base station battery test system. Then, the first workpiece test component 40 enters the sealed cabinet 10 along the large - mouth door 11 and is positioned and fixed through the locking clamp seat 30. Then, the second workpiece test component 70 is installed on the positioning base plate 60 through the workpiece positioning plate 62, thus configuring a general - purpose test cabinet corresponding to the model of the battery to be tested. To ensure the isolation degree between the sealed cabinet 10 and the outside, a transition box is provided on the sealed cabinet 10. Through this transition box, a transition function is achieved, so that after the first workpiece test component 40 and the second workpiece test component 70 are transferred into the sealed cabinet 10, they are connected to the communication base station battery test system through the transition box. The test process is as follows. The push-pull door 61 and the workpiece positioning plate 62 are pushed forward to the front of the sealing cabinet 10 by the forward push cylinder 12. Then, the battery 1 to be tested flowing from the previous station is positioned and placed on the workpiece positioning plate 62. After placement, the forward push cylinder 12 retracts, sending the workpiece positioning plate 62 into the sealing cabinet 10 and positioning it below the first workpiece test component 40. And the push-pull door 61 is closed with the sealing cabinet 10 driven by the forward push cylinder 12 to isolate the sealing cabinet 10 from the outside. Next, the downward push cylinder 21 and the side driving force unit 80 operate. The downward push cylinder 21 pushes the downward push plate 22 to make the first workpiece test component 40 dock with the battery 1 to be tested, and the side driving force unit 80 drives the second workpiece test component 70 to dock with the battery 1 to be tested, completing the connection of the battery 1 to be tested with the communication base station battery test system. After the battery 1 to be tested is docked with the first workpiece test component 40 and the second workpiece test component 70, various tests on the battery can be started, such as the under-voltage test of the battery cell, the over-voltage test of the battery cell, the total voltage test of the battery cell, etc. After the test is completed, the downward push cylinder 21 moves in the reverse direction to make the first workpiece test component 40 separate from the battery 1 to be tested; the side driving force unit 80 moves in the reverse direction to make the second workpiece test component 70 separate from the battery 1 to be tested under the action of the tension spring 63. The forward push cylinder 12 pushes the positioning substrate 60 and the workpiece positioning plate 62 forward to open the push-pull door 61 and take out the tested battery.

[0040] In the above technical solution, by setting the detachable first workpiece test component 40 and the second workpiece test component 70, different types of test modules can be replaced according to different test requirements to adapt to the test requirements of various communication base station batteries and improve the usage range of the test cabinet. The cooperation of structures such as the jig frame 20, the downward push plate 22, and the workpiece positioning plate 62 ensures the accurate positioning of the battery during the test process and guarantees the accuracy of the test. At the same time, the setting of the slide rail assembly 50 ensures the smooth movement of the positioning substrate 60, further improves the positioning accuracy, and combined with the forward push cylinder 12, can realize the automatic opening and closing operation of the push-pull door 61, facilitating the taking and placing operation of the battery 1 to be tested.

[0041] The second workpiece test component 70 completes the docking and separation operations with the battery 1 to be tested by using the side driving force unit 80 arranged in the sealing cabinet 10 in combination with the tension spring 63, enabling the downward push cylinder 21, the forward push cylinder 12, and the side driving force unit 80 to be integrated in the sealing cabinet 10 without corresponding replacement according to different battery models. It cleverly realizes multi-port docking to achieve multi-item tests while facilitating the disassembly and replacement of the first workpiece test component 40, the second workpiece test component 70, and the workpiece positioning plate 62, thereby simplifying the complexity of replacement and achieving the operation purpose of quick replacement.

[0042] Please refer to Figures 4 - 6, on the basis of the above technical solution, it is further proposed that the fixture rack 20 includes a fixture bottom plate 23, two fixture side plates 24 installed on both sides of the fixture bottom plate 23, and a fixture top plate 25 fixedly installed on the two fixture side plates 24. The downward push cylinder 21 is installed on the fixture top plate 25, and the downward push plate 22 is connected to the lower end of the fixture top plate 25 in a guiding manner. The slide rail assembly 50, the forward push cylinder 12, and the side driving force unit 80 are all installed on the fixture bottom plate 23. The stable frame structure formed by the fixture bottom plate 23, the fixture side plates 24, and the fixture top plate 25 provides a solid and reliable support foundation for the downward push cylinder 21, the downward push plate 22, and other components installed on the fixture bottom plate 23, ensuring the stability of the entire testing process. The downward push cylinder 21 is installed on the fixture top plate 25, and it can utilize the height advantage of the top plate to generate a stable downward thrust, accurately pushing the downward push plate 22 to work, ensuring the accurate installation and positioning of the first workpiece testing component 40. The slide rail assembly 50, the forward push cylinder 12, and the side driving force unit 80 are installed on the fixture bottom plate 23. This not only makes full use of the planar space of the fixture bottom plate 23 for easy wiring and maintenance but also enables these components to be closer to the workpiece positioning plate 62, shortening the power transmission path, making operations such as the movement of the positioning substrate 60 and the docking of the second workpiece testing component 70 more efficient and sensitive, effectively improving the overall performance and testing efficiency of the communication base station battery testing cabinet.

[0043] Please refer to Figures 5 - 6 , on the basis of the above technical solution, it is further proposed that a middle plate 26 is suspended and installed on the fixture side plate 24. A guiding rod 27 is provided between the middle plate 26 and the fixture top plate 25. The downward push plate 22 is connected to the guiding rod 27 in a guiding manner, and a first buffer 28 docked to the middle plate 26 is also installed on the downward push plate 22. The setting of the guiding rod 27 provides precise guidance for the movement of the downward push plate 22, making the downward push plate 22 move more smoothly and steadily during the up and down movement, effectively avoiding problems such as the improper installation of the first workpiece testing component 40 or the influence on the testing accuracy caused by shaking or deviation, and further improving the accuracy and stability of the testing. The suspended installation of the middle plate 26 plays a role of intermediate support and transition. On the one hand, it provides an additional fixed point for the guiding rod 27, enhancing the stability of the guiding structure; on the other hand, when the first buffer 28 works, the middle plate 26 can bear the buffer force and jointly restrict the movement of the downward push plate 22 with the fixture top plate 25. The first buffer 28 plays a buffering role between the downward push plate 22 and the middle plate 26. When the downward push cylinder 21 pushes the downward push plate 22 to move downward, during the process of approaching the first workpiece testing component 40 or moving upward and retracting after the test, the first buffer 28 can effectively slow down the impact force of the downward push plate 22, preventing the rigid collision between the downward push plate 22 and the middle plate 26. This not only protects the downward push plate 22, the middle plate 26, and related components, extending their service life, but also reduces the noise generated during the operation of the equipment, making the entire testing process smoother and quieter.

[0044] Please refer to Figure 5 、 Figure 6 and Figure 8 On the basis of the above technical solution, it is further proposed that the locking card seat 30 includes two U-shaped strip plates 31 fixedly installed at the lower end of the lower push plate 22 and corresponding to each other. A longitudinal tightening knob 32 and a transverse tightening knob 33 are threadedly connected to the U-shaped strip plate 31. The first workpiece testing component 40 enters the sealed cabinet 10 along the large opening door 11 and is guided and docked between the two U-shaped strip plates 31. The first workpiece testing component 40 is tightened and fixed to the lower end of the lower push plate 22 by the transverse tightening knob 33 and the longitudinal tightening knob 32. This enables the first workpiece testing component 40 to quickly enter the sealed cabinet 10 along the large opening door 11 and be accurately guided and docked between the two U-shaped strip plates 31. Fixing can be completed by simply rotating the tightening knob, with simple and quick operation, greatly shortening the installation and replacement time of the testing component and improving the testing efficiency. When it is necessary to replace different types of the first workpiece testing component 40 to meet different battery testing requirements, the advantage of this quick-release structure is particularly obvious. In addition, the longitudinal tightening knob 32 and the transverse tightening knob 33 fasten the first workpiece testing component 40 from two directions to ensure that its testing accuracy will not be affected by factors such as vibration and displacement during the testing process. Even in a relatively complex testing environment, it can ensure that the first testing head 44 and the workpiece always maintain a good docking state, providing guarantee for the accuracy of the testing data.

[0045] In terms of the structural arrangement, the first workpiece testing component 40 includes a quick-release plate 41 guided and docked between the two U-shaped strip plates 31, multiple connecting columns 42 connected to the lower end of the quick-release plate 41 and evenly distributed, a first quick-change plate 43 fixed to the lower part of the quick-release plate 41 through the connecting columns 42, and a first testing head 44 arranged on the first quick-change plate 43 for testing the workpiece. When it is necessary to adjust the testing function or test batteries of different specifications, only the corresponding modules need to be replaced, such as replacing different types of the first quick-change plate 43 or the first testing head 44, without replacing the entire testing component, reducing the cost and improving the versatility of the testing system. In addition, at least one positioning pin 45 is provided at the lower end of the first quick-change plate 43, and a positioning hole seat 46 docked to the positioning pin 45 is installed on the workpiece positioning plate 62; this positioning method can effectively reduce the testing error caused by positioning deviation and improve the accuracy and reliability of the testing; especially when performing high-precision testing on various parameters of the battery cell, accurate positioning is particularly important.

[0046] Please refer to Figure 7, on the basis of the above technical solution, it is further proposed that the slide rail assembly 50 includes two pairs of guide rail sliders 51 fixedly installed in the sealed cabinet 10, two sliding guide rails 52 respectively slidably connected to the two pairs of guide rail sliders 51, a limit block 53 provided on one of the sliding guide rails 52, and a second buffer 54 provided in the sealed cabinet 10 and corresponding to the limit block 53. The sliding of the sliding guide rail 52 is restricted by the docking of the limit block 53 and the second buffer 54. During the test process, the positioning substrate 60 can move precisely along the sliding guide rail 52, ensuring that the workpiece positioning plate 62 and the battery placed thereon can accurately reach the test position and achieve precise docking with the first workpiece test component 40 and the second workpiece test component 70, greatly improving the accuracy and repeatability of the test. When the sliding guide rail 52 drives the positioning substrate 60 to move to a specific position, the limit block 53 docks with the second buffer 54, effectively preventing the sliding guide rail 52 from continuing to move and avoiding equipment damage or test position deviation caused by excessive movement. This precise limit design not only ensures the safe operation of the equipment but also provides strong support for the standardization of the test process. This not only extends the service life of the slide rail assembly 50 and related equipment but also creates a more stable and quiet atmosphere for the test environment, helping to improve the work efficiency of the test personnel and the reliability of the test results.

[0047] Please refer to Figure 8 and Figure 10 , on the basis of the above technical solution, it is further proposed that a right-angle block 64 for fixing the workpiece is provided on the workpiece positioning plate 62. After the workpiece is placed on the workpiece positioning plate 62, its corner positions are fixed by the right-angle block 64. A positioning plug 65 is also provided on the workpiece positioning plate 62, and a positioning hole 66 corresponding to the positioning plug 65 is provided on the positioning substrate 60. The workpiece positioning plate 62 is positioned on the positioning substrate 60 through the cooperation of the positioning plug 65 and the positioning hole 66. After the positioning plug 65 is docked with the positioning hole 66, its lower end extends to the lower end of the positioning substrate 60. A marble 67 that is clamped to the lower end of the positioning substrate 60 is provided at the part where the positioning plug 65 extends to the lower end of the positioning substrate 60. This structural setting effectively prevents the workpiece from shifting during the test, ensures the accuracy of the test position, and thus improves the reliability of the test data. The cooperation between the positioning plug 65 and the positioning hole 66 on the positioning substrate 60 further precisely positions the workpiece positioning plate 62 on the positioning substrate 60. The marble 67 is clamped to the lower end of the positioning substrate 60 to prevent the positioning plug 65 from loosening and ensure the stability of the entire positioning structure. This positioning and fixing method is simple to operate, facilitating the staff to quickly place and remove the workpiece, improving the test efficiency. When it is necessary to replace different workpieces for testing, the workpiece replacement work can be completed quickly.

[0048] Please refer to Figures 8 - 9, on the basis of the above technical solution, it is further proposed that the second workpiece testing component 70 includes a first linear guide rail assembly 71 installed on the workpiece positioning plate 62, a fixed seat 72 slidably connected to the workpiece positioning plate 62 through the first linear guide rail assembly 71, a second quick-change plate 73 installed on the fixed seat 72, and a second test head 74 provided on the second quick-change plate 73 for testing the workpiece. A tension spring 63 is horizontally connected between the fixed seat 72 and the workpiece positioning plate 62. In the state where the sliding door 61 is closed, the side driving force unit 80 is in abutting cooperation with the fixed seat 72. The first linear guide rail assembly 71 enables the fixed seat 72 to slide flexibly on the workpiece positioning plate 62, driving the second quick-change plate 73 and the second test head 74 to move, facilitating accurate adjustment of the test position according to the sizes and test requirements of different workpieces, and enhancing the adaptability of the test cabinet to communication base station batteries of different specifications. The tension spring 63 is horizontally connected between the fixed seat 72 and the workpiece positioning plate 62. When the side driving force unit 80 stops acting, the tension spring 63 can drive the fixed seat 72 to automatically return to its original position, preparing for the next test, simplifying the test process, and improving work efficiency.

[0049] Please refer to Figures 5 - 6 , on the basis of the above technical solution, it is further proposed that the side driving force unit 80 includes a top push cylinder 81 fixedly installed in the sealed cabinet 10, a second linear guide rail assembly 82 installed at the lower end of the middle plate 26, a side push block 83 slidably connected to the lower end of the middle plate 26 through the second linear guide rail assembly {82}, and a corner piece 84 hinged between the piston end of the top push cylinder 81 and the side push block 83. The top push cylinder 81 drives the side push block 83 to move horizontally along the second linear guide rail assembly 82 through the transmission of the corner piece 84, so that the side push block 83 can complete the operation of pushing against the fixed seat 72 and then driving the fixed seat 72 to move along the direction of the first linear guide rail assembly 71. The top push cylinder 81 drives the side push block 83 to move through the transmission of the corner piece 84, converting the linear motion of the top push cylinder 81 into the horizontal movement of the side push block 83. This transmission method is stable and reliable, can provide sufficient driving force for the fixed seat 72, ensure the close docking of the second test head 74 with the workpiece, guarantee the smooth progress of the test, and reasonably reduce the width of the test cabinet, making the structure of the test cabinet more compact.

[0050] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention.

Claims

1. A general-purpose test cabinet for communication base station batteries, characterized in that, It includes a sealed cabinet (10), a fixture rack (20) is installed inside the sealed cabinet (10), a push-down cylinder (21) is installed on the fixture rack (20), the lower end of the fixture rack (20) is guidingly connected to a push-down plate (22), and the push-down plate (22) is power-connected to the push-down cylinder (21). A locking chuck (30) is provided at the lower end of the push-down plate (22), the locking chuck (30) is detachably connected to a first workpiece testing component (40), and a large-mouth door (11) for taking and placing the first workpiece testing component (40) is hermetically covered at the rear of the sealed cabinet (10); A slide rail assembly (50) is further provided inside the sealed cabinet (10), a positioning substrate (60) is installed on the slide rail assembly (50), a sliding door (61) connected to the positioning substrate (60) is provided at the front of the sealed cabinet (10), a front push cylinder (12) for pushing the positioning substrate (60) to move is further installed inside the sealed cabinet (10), a workpiece positioning plate (62) for positioning a workpiece is detachably installed on the positioning substrate (60), and a second workpiece testing component (70) is slidably connected to both sides of the workpiece positioning plate (62); When the sliding door (61) is in the closed state, the workpiece positioning plate (62) is directly below the first workpiece testing component (40). A side driving force unit (80) for pushing the second workpiece testing component (70) to dock with the workpiece is installed inside the sealed cabinet (10), and a tension spring (63) for driving the second workpiece testing component (70) to disengage from the workpiece is provided on the workpiece positioning plate (62).

2. The general-purpose test cabinet for a communication base station battery according to claim 1, characterized in that, The fixture rack (20) includes a fixture bottom plate (23), two fixture side plates (24) installed on both sides of the fixture bottom plate (23), and a fixture top plate (25) fixedly erected on the two fixture side plates (24). The push-down cylinder (21) is installed on the fixture top plate (25), the push-down plate (22) is guidingly connected to the lower end of the fixture top plate (25), and the slide rail assembly (50), the front push cylinder (12) and the side driving force unit (80) are all installed on the fixture bottom plate (23).

3. The general test cabinet for a communication base station battery according to claim 2, wherein A middle plate (26) is suspended and installed on the fixture side plate (24), a guide rod (27) is provided between the middle plate (26) and the fixture top plate (25), the push-down plate (22) is guidingly connected to the guide rod (27), and a first buffer (28) docked with the middle plate (26) is further installed on the push-down plate (22).

4. A general-purpose test cabinet for a communication base station battery according to claim 1, characterized in that, The locking chuck (30) includes two U-shaped strip plates (31) fixedly installed at the lower end of the push-down plate (22) and corresponding to each other. A longitudinal tightening knob (32) and a transverse tightening knob (33) are threadedly connected to the U-shaped strip plates (31). The first workpiece testing component (40) enters the sealed cabinet (10) along the large-mouth door (11) and is guidingly docked between the two U-shaped strip plates (31), and the first workpiece testing component (40) is tightened and fixed to the lower end of the push-down plate (22) by the transverse tightening knob (33) and the longitudinal tightening knob (32).

5. The general-purpose test cabinet for a communication base station battery according to claim 4, characterized in that, The first workpiece testing component (40) includes a quick-release plate (41) that is guidingly docked between two U-shaped strip plates (31), multiple connecting columns (42) that are connected to the lower end of the quick-release plate (41) and are evenly distributed, a first quick-change plate (43) that is fixed below the quick-release plate (41) through the connecting columns (42), and a first test head (44) that is arranged on the first quick-change plate (43) for testing the workpiece.

6. The general-purpose test cabinet for a communication base station battery according to claim 5, characterized in that, At least one positioning pin (45) is further arranged at the lower end of the first quick-change plate (43), and a positioning hole (66) seat (46) that is docked to the positioning pin (45) is installed on the workpiece positioning plate (62).

7. A general-purpose test cabinet for communication base station batteries according to any one of claims 1-2, characterized in that, The slide rail assembly (50) includes two pairs of guide rail sliders (51) that are fixedly installed in the sealed cabinet (10), two slide rails (52) that are respectively slidably connected to the two pairs of guide rail sliders (51), a limit block (53) that is arranged on one of the slide rails (52), and a second buffer (54) that is arranged in the sealed cabinet (10) and corresponds to the limit block (53). The sliding of the slide rail (52) is restricted by the docking of the limit block (53) and the second buffer (54).

8. The general-purpose test cabinet for a communication base station battery according to claim 1, characterized in that, A right-angle block (64) for fixing the workpiece is arranged on the workpiece positioning plate (62). After the workpiece is placed on the workpiece positioning plate (62), its corner positions are fixed by the right-angle block (64). A positioning plug (65) is further arranged on the workpiece positioning plate (62). A positioning hole (66) corresponding to the positioning plug (65) is opened on the positioning substrate (60). The workpiece positioning plate (62) is positioned on the positioning substrate (60) through the cooperation of the positioning plug (65) and the positioning hole (66). After the positioning plug (65) is docked to the positioning hole (66), its lower end extends out of the lower end of the positioning substrate (60). A marble (67) that is clamped to the lower end of the positioning substrate (60) is arranged at the part where the positioning plug (65) extends out of the lower end of the positioning substrate (60).

9. The general-purpose test cabinet for a communication base station battery according to claim 3, characterized in that, The second workpiece testing component (70) includes a first linear guide rail assembly (71) that is installed on the workpiece positioning plate (62), a fixed seat (72) that is slidably connected to the workpiece positioning plate (62) through the first linear guide rail assembly (71), a second quick-change plate (73) that is installed on the fixed seat (72), and a second test head (74) that is arranged on the second quick-change plate (73) for testing the workpiece. A tension spring (63) is horizontally connected between the fixed seat (72) and the workpiece positioning plate (62). In the state where the push-pull door (61) is closed, the side driving force unit (80) is in abutting cooperation with the fixed seat (72).

10. The general-purpose test cabinet for the battery of a communication base station according to claim 9, characterized in that, The side driving force unit (80) includes a jacking cylinder (81) fixedly installed in the sealed cabinet (10), a second linear guide rail assembly (82) installed at the lower end of the middle plate (26), a side pushing block (83) slidably connected to the lower end of the middle plate (26) through the second linear guide rail assembly (82), and a corner piece (84) hinged between the piston end of the jacking cylinder (81) and the side pushing block (83). The jacking cylinder (81) drives the side pushing block (83) to move horizontally along the second linear guide rail assembly (82) through the transmission of the corner piece (84), so that the side pushing block (83) can complete the operation of pushing against the fixed seat (72) and then driving the fixed seat (72) to move along the direction of the first linear guide rail assembly (71).

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