A device for rapidly detecting battery voltage and internal resistance

Abstract

The application provides a device for rapidly detecting battery voltage and internal resistance, and belongs to the technical field of battery detection. The device comprises a detection table and a fixing frame. The fixing frame is in an inverted U-shaped structure and is slidingly installed on the upper surface of the detection table. An X-axis sliding table is slidingly installed on the fixing frame, and a lifting air cylinder is vertically installed on the X-axis sliding table. A vacuum suction nozzle, a test probe and a probe clamping air cylinder are installed at the bottom of the lifting air cylinder. A vacuum pressure gauge is connected to the vacuum suction nozzle. The upper surface of the detection table is symmetrically provided with a tray induction sensor one and a tray induction sensor two. The application realizes full-automatic detection by using a PLC control system in cooperation with a touch screen. An operator only needs to place a whole tray of batteries on the detection table to start the device by one key, and does not need to manually place the batteries one by one, thereby reducing the labor intensity. A single person can independently complete the synchronous detection of the voltage and internal resistance of the whole tray of batteries, and the production efficiency is significantly improved compared with the traditional manual detection and semi-automatic detection methods.

Description

Technical Field

[0001] This invention relates to the field of battery testing technology, and in particular to a device for rapidly detecting battery voltage and internal resistance. Background Technology

[0002] Before leaving the factory, batteries need to be tested for voltage and internal resistance in order to screen out products that meet the performance requirements. Currently, the industry mainly uses two testing methods: The first is manual testing using ordinary testing instruments. Operators hold two styluses and touch the positive and negative terminals of the battery one by one to measure the voltage. Although this method has simple equipment, the testing efficiency is low. Operators need to work repeatedly for a long time, which can easily lead to fatigue. In addition, ordinary testing instruments usually do not have internal resistance detection functions, so they cannot complete the voltage and internal resistance detection simultaneously in the same process. They need to use other equipment for secondary measurement, which is cumbersome. The second method is semi-automatic testing. Operators place the batteries one by one into the testing fixture. After the sensor in the fixture senses the position, the test probe clamps the battery from both sides to detect the voltage. After the detection is completed, the probe cylinder resets, waiting for the next battery to be placed. This method is more efficient than fully manual testing, but the loading and unloading still require manual assistance to place and remove the batteries one by one. The labor cost is not substantially reduced. In addition, some semi-automatic equipment is not equipped with a communication interface for battery internal resistance detection instruments, so it is also impossible to complete the internal resistance detection simultaneously. The overall testing process still has efficiency bottlenecks and functional deficiencies. Therefore, the inventor proposes a device for quickly detecting battery voltage and internal resistance. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a device for quickly detecting battery voltage and internal resistance in order to solve the problem that the existing loading and unloading process still requires manual placement and removal of each battery, which does not substantially reduce labor costs, and some semi-automatic equipment does not have a communication interface for battery internal resistance detection instruments, so it is also impossible to complete the internal resistance detection synchronously.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A device for rapidly detecting battery voltage and internal resistance includes a testing platform and a fixed frame. The fixed frame has an inverted U-shaped structure and is slidably mounted on the upper surface of the testing platform. An X-axis slide is slidably mounted on the fixed frame, and a lifting cylinder is vertically mounted on the X-axis slide. A vacuum nozzle, a test probe, and a probe clamping cylinder are mounted at the bottom of the lifting cylinder.

[0005] Optionally, a vacuum gauge is connected to the vacuum nozzle.

[0006] Optionally, a tray sensing sensor one and a tray sensing sensor two are symmetrically installed on the upper surface of the detection station.

[0007] Optionally, a Y-axis guide rail is mounted on the upper surface of the testing station, and the Y-axis guide rail is slidably connected to the fixing frame.

[0008] Optionally, the front end face of the testing station is equipped with a testing data transmission interface.

[0009] Optionally, a touch screen is provided in the center of the front surface of the testing station.

[0010] Optionally, the front face of the testing station is provided with an emergency stop button, a start button, and a reset button near the side.

[0011] Compared with the prior art, the present invention has at least the following beneficial effects: In the above solution, this device uses a PLC control system in conjunction with a touch screen to achieve fully automatic detection. The operator only needs to place the entire tray of batteries on the testing table to start the device with one button, eliminating the need to manually place the batteries one by one, thus reducing the intensity of manual labor. A single person can independently complete the simultaneous detection of voltage and internal resistance of the entire tray of batteries, significantly improving production efficiency compared to traditional manual and semi-automatic detection methods. Through the three-axis linkage of the X-axis slide, Y-axis guide rail, and lifting cylinder, combined with vacuum suction nozzle gripping, it can automatically adapt to different specifications of blister trays and battery arrangements. The touch screen can be customized to set and save parameters such as movement spacing, number of rows and columns, and height, making it widely applicable and easy to change models. An external high-speed voltage and internal resistance detection all-in-one machine replaces the traditional single-function detector, achieving simultaneous acquisition of dual parameters of voltage and internal resistance, resulting in higher detection accuracy and compatibility. At the same time, it eliminates the secondary measurement process, effectively controlling the overall manufacturing and operating costs. Attached Figure Description

[0012] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.

[0013] Figure 1 A three-dimensional structural diagram of a device for rapidly detecting battery voltage and internal resistance; Figure 2 This is a schematic diagram of the fixed frame structure; Figure 3 This is a schematic diagram of the vacuum chuck and test probe structure.

[0014] Figure label: 1. Testing table; 2. Testing data transmission interface; 3. Touch screen; 4. Reset button; 5. Start button; 6. Emergency stop button; 7. Tray sensor 1; 8. Tray sensor 2; 9. Y-axis guide rail; 10. Fixing frame; 11. Lifting cylinder; 12. X-axis slide; 13. Vacuum nozzle; 14. Test probe; 15. Probe clamping cylinder; 16. Vacuum pressure gauge.

[0015] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0016] The following is a detailed description of a device for rapidly detecting battery voltage and internal resistance provided by the present invention, with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0017] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when describing a specific feature, structure, or characteristic in conjunction with embodiments, the implementation of such feature, structure, or characteristic in conjunction with other embodiments, whether or not explicitly described, should be within the knowledge of those skilled in the art.

[0018] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0019] It is understood that the meanings of “on”, “above”, and “above” in this invention should be interpreted in the broadest manner, such that “on” not only means “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” not only means “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0020] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0021] like Figure 1-3 As shown, an embodiment of the present invention provides a device for rapidly detecting battery voltage and internal resistance, including a detection platform 1 and a fixing frame 10. The fixing frame 10 has an inverted U-shaped structure and is slidably mounted on the upper surface of the detection platform 1. An X-axis slide 12 is slidably mounted on the fixing frame 10, and a lifting cylinder 11 is vertically mounted on the X-axis slide 12. A vacuum nozzle 13, a test probe 14, and a probe clamping cylinder 15 are mounted at the bottom of the lifting cylinder 11. A vacuum gauge 16 is connected to the vacuum nozzle 13. A tray sensing sensor 7 and a tray sensing sensor 8 are symmetrically mounted on the upper surface of the detection platform 1. A Y-axis guide rail 9 is mounted on the upper surface of the detection platform 1 and is slidably connected to the fixing frame 10. There are two test probes 14 symmetrically arranged to clamp and contact the electrodes at both ends of the battery, which are energized. Both the X-axis slide 12 and the Y-axis guide rail 9 are driven by stepper motors controlled by a PLC, and are driven by two stepper motors and belts respectively.

[0022] The front face of the testing station 1 is equipped with a test data transmission interface 2. A touch screen 3 is centrally located on the front face of the testing station 1. Near the side of the front face of the testing station 1, there are an emergency stop button 6, a start button 5, and a reset button 4.

[0023] The working principle of the technical solution provided by this invention is as follows: After connecting the power supply and air source, turn on the main power switch. The equipment enters the self-test and reset state, and the touch screen 3 is turned on simultaneously. In the manual mode of the touch screen 3, the operator sets the moving distance, number of rows and columns of the X-axis slide table 12 and the Y-axis guide rail 9, and the Z-axis height of the lifting cylinder 11 according to the specifications of the battery blister tray, and saves it in the PLC memory. At the same time, the detection requirement range of the integrated external voltage and internal resistance detection machine is set. Then, the corresponding program saved on the touch screen 3 is retrieved and switched to automatic mode. The entire tray of batteries is placed on the detection table 1. After the tray induction sensor 1 7 and the tray induction sensor 2 8 detect that the tray is in place, the fixing frame 10 slides along the Y-axis guide rail 9 to the top of the tray. The X-axis slide table 12 moves to the top of the first row of batteries under the drive of the stepper motor. The lifting cylinder 11 drives the vacuum nozzle 13 to descend to the top of the batteries. The vacuum generator generates negative pressure through a solenoid valve. The vacuum nozzle 13 picks up the battery, and the vacuum pressure gauge 16 provides real-time feedback of the pressure value to confirm proper gripping. The lifting cylinder 11 raises the battery to the test height, and the probe clamping cylinder 15 actuates to clamp the battery from both sides using the test probe 14. The external voltage and internal resistance detection integrated machine interacts with the PLC through the detection data transmission interface 2 to synchronously complete voltage and internal resistance detection. The PLC compares the detection results with the preset threshold. After a qualified product triggers a buzzer to sound an alert, the vacuum nozzle 13 returns the battery to its original position. Unqualified products are gripped by the vacuum nozzle 13 and moved to the designated area. Then, the X-axis slide 12 moves to the next column to continue detection until the entire tray of batteries has been tested. Pressing the reset button 4 or operating the reset via the touch screen 3 returns the equipment to its initial standby state. Reset sensors are installed on the X-axis and Y-axis movement paths, respectively.

[0024] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0025] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A device for rapidly detecting battery voltage and internal resistance, characterized in that, It includes a testing platform (1) and a fixed frame (10). The fixed frame (10) has an inverted U-shaped structure and is slidably installed on the upper surface of the testing platform (1). An X-axis slide (12) is slidably installed on the fixed frame (10), and a lifting cylinder (11) is vertically installed on the X-axis slide (12). The bottom of the lifting cylinder (11) is equipped with a vacuum nozzle (13), a test probe (14), and a probe clamping cylinder (15).

2. The device for rapidly detecting battery voltage and internal resistance according to claim 1, characterized in that, A vacuum gauge (16) is connected to the vacuum nozzle (13).

3. The device for rapidly detecting battery voltage and internal resistance according to claim 1, characterized in that, The upper surface of the detection station (1) is symmetrically equipped with a tray sensing sensor one (7) and a tray sensing sensor two (8).

4. The device for rapidly detecting battery voltage and internal resistance according to claim 1, characterized in that, The upper surface of the testing platform (1) is equipped with a Y-axis guide rail (9), which is slidably connected to the fixing frame (10).

5. The device for rapidly detecting battery voltage and internal resistance according to claim 1, characterized in that, The front end of the testing station (1) is equipped with a testing data transmission interface (2).

6. The device for rapidly detecting battery voltage and internal resistance according to claim 1, characterized in that, The front end of the testing station (1) is equipped with a touch screen (3).

7. The device for rapidly detecting battery voltage and internal resistance according to claim 1, characterized in that, The front end of the testing station (1) is provided with an emergency stop button (6), a start button (5) and a reset button (4) near the side.

Images