An online four-wire integrated test device

Abstract

This application relates to the technical field of electrical testing and discloses an online four-wire integrated testing device. The testing device includes a frame, a moving mechanism, and a testing mechanism. The frame has a testing platform, the moving mechanism is mounted on the testing platform, and the product under test is placed on the horizontal moving end of the moving mechanism. The testing mechanism is located above the moving mechanism and includes a lifting assembly, several probe groups, and several electrical drive rods. The lifting assembly is mounted on the frame, and each electrical drive rod is detachably connected to the vertical drive end of the lifting assembly. The probe groups are slidably connected to the electrical drive rods to correspond to the test ports of the product under test. This application effectively improves the quality inspection efficiency of circuit board products during the manufacturing process, enabling rapid detection of multiple defects in the online production stage, avoiding the tediousness and inaccuracy of manual inspection, and reducing downtime in the production process.

Description

Technical Field

[0001] This application relates to the technical field of electrical testing, and in particular to an online four-wire integrated testing device. Background Technology

[0002] In the fields of energy storage and new energy vehicles, electrical testing technology plays a crucial role in product quality control and performance evaluation. With the rapid development of the industry, the market is placing higher demands on related electrical testing technologies.

[0003] Currently, electrical testing in this field mainly relies on dedicated test fixtures and larger-sized equipment. However, these existing technologies have several significant drawbacks. On the one hand, dedicated test fixtures have a single purpose, only capable of testing specific models or types of products, making it difficult to adapt to diverse product structures and resulting in a severe lack of style diversity. On the other hand, their manufacturing costs are high, increasing production costs and R&D burdens for enterprises. Furthermore, due to their large size, these devices and fixtures require significant placement space, which undoubtedly limits layout flexibility in environments with limited space, such as production workshops.

[0004] Furthermore, traditional testing methods are time-consuming during model transitions, significantly reducing production efficiency. Electrical testing itself also has some technical limitations, making it difficult to guarantee the accuracy and reliability of test results. More importantly, existing technologies have poor compatibility, making it difficult to meet the market's demand for co-line testing of products from different brands and specifications.

[0005] As customer product structures become increasingly complex, the demands on electrical testing performance are also constantly rising. Against this backdrop, traditional testing procedures face significant challenges and struggle to adapt to the new trends in industry development. Developing more versatile, efficient, accurate, and compatible electrical testing equipment has become a critical issue that urgently needs to be addressed in the energy storage and new energy vehicle sectors. Utility Model Content

[0006] The technical problem to be solved by this application is to provide an online four-wire integrated testing device to simplify the testing steps, improve the quality testing efficiency of circuit board products in the manufacturing process, and can be used to test different circuit board products.

[0007] To address the aforementioned issues, this application provides an online four-wire integrated testing device, including a frame, a moving mechanism, and a testing mechanism. The frame is equipped with a testing platform, the moving mechanism is mounted on the testing platform, and the product under test is placed on the horizontal moving end of the moving mechanism. The testing mechanism is positioned above the moving mechanism and includes a lifting assembly, several probe groups, and several electrical drive rods. The lifting assembly is mounted on the frame, and each of the electrical drive rods is detachably connected to the vertical drive end of the lifting assembly. The probe groups are slidably connected to corresponding electrical drive rods to be inserted into the testing ports of the product under test.

[0008] Preferably, the lifting assembly includes two sets of first driving components and two sets of mounting brackets. Each first driving component is respectively disposed on both sides of the frame, and each mounting bracket is respectively disposed on the vertical driving end of the first driving component. Both ends of each electrical driving rod are detachably connected to the corresponding mounting bracket.

[0009] Preferably, both sides of the mounting bracket are provided with horizontal guide rails, and both ends of each of the electrical drive rods are detachably connected to the guide rails, and the electrical drive rods can slide along the guide rails.

[0010] Preferably, the probe group includes several probes arranged adjacent to each other, and the probes are connected to the electrical drive rod.

[0011] Preferably, the moving mechanism includes a support and two sets of second driving components. The two sets of second driving components are respectively arranged in parallel on both sides of the test platform. Each set of second driving components has two horizontal driving ends. The two ends of the support are respectively fixed to the two horizontal driving ends of the second driving components. The product to be tested is placed on the support.

[0012] Preferably, the support member includes a support plate and a third driving member, wherein two sets of the third driving member are provided, and the two ends of the support plate are respectively connected to the vertical driving ends of the third driving member.

[0013] Preferably, the moving mechanism further includes several sets of fourth driving components, which are fixed on the test platform, and the horizontal driving ends of two sets of fourth driving components arranged opposite to each other are respectively connected to two sets of second driving components.

[0014] Preferably, the testing equipment further includes a recirculation mechanism, which is located at the bottom of the frame and directly below the moving mechanism. One end of the recirculation mechanism and the moving mechanism is connected to an external lifting mechanism.

[0015] Compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0016] The product under test is placed on the horizontal moving end of the moving mechanism, which can move horizontally on the test platform to easily adjust the product to a suitable position for testing. The lifting assembly is the driving part for the lifting of the test mechanism. The electric drive rod is detachably connected to the vertical drive end of the lifting assembly. When the lifting assembly is working, it can drive the electric drive rod to move up and down.

[0017] The electric drive rod moves the probe assembly above the corresponding test port of the product under test (DUT). When the electric drive rod moves downward under the drive of the lifting assembly, the probe assembly comes into contact with the test port of the DUT. At this time, a specific test signal, such as current or voltage, is applied to the test port of the DUT through the probe assembly. These signals are transmitted inside the DUT, and the testing equipment detects the signal transmission, including signal strength and whether abnormal short circuits or open circuits occur, thereby determining whether the circuit board has defects such as broken lines, open circuits, or short circuits.

[0018] This testing equipment effectively improves the efficiency of quality inspection during the manufacturing process of circuit boards. It can quickly detect various defects in the online production stage, avoiding the tediousness and inaccuracy of manual inspection and reducing downtime in the production process. On the other hand, the structural design of this testing equipment has good versatility and flexibility. The moving mechanism can easily adjust the product position, and the detachable and sliding connection of the electrical drive rod and probe assembly allows the equipment to adapt to different models and sizes of circuit boards, enhancing its applicability. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the test equipment in the embodiments of this application.

[0021] Figure 2 This is a schematic diagram of the internal structure of the test device in an embodiment of this application.

[0022] Figure 3 for Figure 2 Enlarged view of section A.

[0023] Figure 4 This is a schematic diagram of the internal structure of the test device from another perspective in an embodiment of this application.

[0024] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Moving mechanism; 3. Testing mechanism; 4. Testing platform; 5. Protective cover; 6. Dustproof window; 7. Viewing window; 8. Control panel; 9. Second drive component; 10. Support component; 11. Lifting assembly; 12. First drive component; 13. Mounting bracket; 14. Guide rail; 15. Electrical drive rod; 16. Probe assembly; 17. Support plate; 18. Third drive component; 19. Fourth drive component; 20. Recirculation mechanism. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0027] It should also be understood that the terminology used in this application specification is for the purpose of describing particular embodiments only and is not intended to limit the application. As used in this application specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0028] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0029] Please refer to Figures 1 to 4 This application provides an online four-wire integrated testing device for detecting defects in the manufacturing process of circuit board products, including defects such as broken wires, open circuits, short circuits, NTC sensor malfunctions, connector misalignment, and open or short circuits in connector soldering.

[0030] Specifically, the testing equipment includes a frame 1, a moving mechanism 2, and a testing mechanism 3. The frame 1 has a testing platform 4, the moving mechanism 2 is mounted on the testing platform 4, and the product under test is placed on the horizontal moving end of the moving mechanism 2. The testing mechanism 3 is positioned above the moving mechanism 2 and includes a lifting assembly 11, several electrical drive rods 15, and several probe groups 16. The lifting assembly 11 is mounted on the frame 1, each electrical drive rod 15 is detachably connected to the vertical drive end of the lifting assembly 11, and the probe groups 16 are slidably connected to the corresponding electrical drive rods 15 to correspondingly insert into the test ports of the product under test. In this embodiment, the horizontal moving end of the moving mechanism 2 has a tray on which the product under test is placed; in other embodiments, the product under test can also be placed directly on the horizontal moving end of the moving mechanism 2.

[0031] In this regard, the frame 1 serves as the supporting structure for the entire equipment, and the test platform 4 is mounted on the frame 1, providing a stable placement area for the tray used to place the product under test. The product under test is placed on the horizontal moving end of the moving mechanism 2, which can move horizontally on the test platform 4 to facilitate adjusting the product to a suitable position for testing. The lifting assembly 11 is the driving part for the lifting of the test mechanism 3. The electric drive rod 15 is detachably connected to the vertical drive end of the lifting assembly 11, and when the lifting assembly 11 is working, it can drive the electric drive rod 15 to move up and down.

[0032] The electrical drive rod 15 can drive the probe assembly 16 to move above the corresponding test port of the product under test. When the electrical drive rod 15 moves downward under the drive of the lifting assembly 11, the probe assembly 16 will correspondingly contact the test port of the product under test. At this time, a specific test signal, such as current or voltage, is applied to the test port of the product under test through the probe assembly 16. These signals are transmitted inside the product under test, and the testing equipment will detect the signal transmission, including the signal strength and whether there are abnormal short circuits or open circuits, thereby determining whether there are defects such as broken lines, open circuits, or short circuits on the circuit board.

[0033] This testing equipment effectively improves the efficiency of quality inspection during the manufacturing process of circuit board products. It can quickly detect various defects in the online production stage, avoiding the tediousness and inaccuracy of manual inspection and reducing downtime in the production process. On the other hand, the structural design of this testing equipment has good versatility and flexibility. The moving mechanism 2 can easily adjust the product position, and the detachable and sliding connection of the electric drive rod 15 and the probe group 16 allows the equipment to adapt to different models and sizes of circuit board products, enhancing the applicability of the equipment.

[0034] Please refer to Figure 2In one specific embodiment, the lifting assembly 11 includes two sets of first driving members 12 and two sets of mounting brackets 13. The two sets of first driving members 12 are respectively positioned opposite each other on both sides of the frame 1 along the width direction, and each mounting bracket 13 is respectively positioned at the vertical driving end of the two sets of first driving members 12. Both ends of each electrical drive rod 15 are detachably connected to the mounting bracket 13.

[0035] During testing, the first drive unit 12 receives a control signal and activates, generating a vertical driving force that moves the mounting bracket 13 and the electrical drive rod 15 downwards, allowing the probe assembly 16 at the end of the electrical drive rod 15 to contact the test port of the circuit board under test. After the test, the first drive unit 12 moves the mounting bracket 13 and the electrical drive rod 15 upwards, disengaging the probe assembly 16 from the test port, completing one test cycle. The symmetrical arrangement of two sets of first drive units 12 on both sides of the frame 1 provides a more stable and balanced vertical driving force, ensuring the mounting bracket 13 and the electrical drive rod 15 remain stable during vertical movement, reducing vibration and offset, thereby improving test accuracy and reliability. Compared to a single drive unit, this symmetrical design better distributes the force, extending the equipment's lifespan.

[0036] Furthermore, the electrical drive rod 15 and the mounting bracket 13 are detachably connected, allowing for quick replacement of electrical drive rods 15 of different specifications, lengths, or types to suit different products under test and testing requirements, thus improving the equipment's versatility and flexibility. This connection method also facilitates the maintenance and repair of the electrical drive rod 15, reducing equipment maintenance costs.

[0037] Furthermore, guide rails 14 are horizontally arranged on opposite sides of the two sets of mounting brackets 13. Each electrical drive rod 15 has its two ends detachably connected to the guide rail 14, and the electrical drive rod 15 can slide along the guide rail 14.

[0038] When the position of the electrical drive rod 15 needs to be adjusted, first remove one or both ends of the electrical drive rod 15 from the guide rail 14, then move the electrical drive rod 15 to the target position along the direction of the guide rail 14, and then reinstall it on the guide rail 14. In this way, the electrical drive rod 15 can slide horizontally along the guide rail 14 according to the test port position requirements of different products under test, so as to achieve flexible position adjustment.

[0039] Because the electric drive rod 15 can slide along the guide rail 14, its position can be flexibly adjusted according to the location and spacing of different test ports on the circuit board under test, thereby achieving accurate testing of circuit board products with various layouts. This allows the testing equipment to adapt to products of various types and sizes without the need to customize special test fixtures or equipment for each product, greatly improving the equipment's versatility and flexibility. When it is necessary to increase or decrease the number of electric drive rods 15 to meet different testing needs, corresponding addition or removal operations can be easily performed on the guide rail 14. This scalability allows the testing equipment to be flexibly expanded and upgraded as production processes are upgraded and product complexity increases, extending the equipment's service life and reducing the company's equipment replacement costs. By precisely adjusting the position of the electric drive rod 15 on the guide rail 14, the probe assembly 16 can more accurately align with the test ports of the product under test, reducing testing errors caused by positional deviations, thereby improving testing accuracy and reliability, and more accurately detecting various defects in the circuit board product.

[0040] Please refer to Figure 3 In one specific embodiment, the probe group 16 includes several probes arranged adjacently, and the probes are connected to the electrical drive rod 15. In this embodiment, each probe group 16 has nine probes. In other embodiments, the number of probes can be increased or decreased according to the number of test ports of the product under test.

[0041] When the electrical drive rod 15 of the testing equipment moves the probe group 16 to the test port position of the product under test, each probe will contact the corresponding test port to establish an electrical connection. This allows for simultaneous signal transmission and detection at multiple test points, enabling rapid acquisition of the electrical performance information of the circuit board under test at these test points. Compared to the method of testing point by point with a single probe, this significantly reduces the testing time and improves testing efficiency, making it particularly suitable for scenarios requiring rapid testing of a large number of circuit board products in mass production.

[0042] In one specific embodiment, the moving mechanism 2 includes two sets of second driving members 9 and two sets of supporting members 10. The two sets of second driving members 9 are respectively arranged in parallel on both sides of the test platform 4 along the length direction. Each set of second driving members 9 has two horizontal driving ends. The two ends of the two sets of supporting members 10 are respectively fixed to the two horizontal driving ends of the two sets of second driving members 9 facing each other. The tray is placed on the two sets of supporting members 10.

[0043] When the second drive unit 9 is activated, its horizontal drive end drives the support unit 10 to move horizontally, thereby moving the tray placed on the support unit 10 horizontally on the test platform 4. This allows the product under test to be precisely moved below the test mechanism 3 or to another desired location. The two sets of second drive units 9 are arranged parallel to each other on both sides of the test platform 4. This layout ensures that the support unit 10 remains stable during movement, with more even force distribution. It avoids problems such as tilting or twisting of the support unit 10 that may occur due to unilateral drive, ensuring that the product under test maintains a stable posture throughout the movement, thus improving the accuracy and reliability of the test. Since the support unit 10 can be appropriately adjusted or replaced according to the size and shape of the product under test, the moving mechanism 2 can adapt to various sizes and types of circuit board products, enhancing the versatility of the test equipment and reducing the company's equipment procurement and production operating costs.

[0044] Please refer to Figure 4 Furthermore, each set of support components 10 includes a support plate 17 and two sets of third drive components 18, with the two ends of the support plate 17 connected to the vertical drive ends of the two sets of third drive components 18 respectively. Thus, by driving the support plate 17 to rise and fall through the two sets of third drive components 18, the height of the tray placed on the support plate 17 can be adjusted, thereby adjusting the height of the product to be tested.

[0045] In one specific embodiment, the moving mechanism 2 further includes several sets of fourth driving members 19. The fourth driving members 19 are fixed to the test platform 4, and the horizontal driving ends of two sets of fourth driving members 19 arranged opposite to each other are respectively connected to two sets of second driving members 9. The fourth driving members 19 are arranged opposite to each other in pairs to drive the two sets of second driving members 9 to move closer or further apart, thereby adjusting the distance between the two sets of second driving members 9 to facilitate adaptation to products of different sizes under test.

[0046] In one specific embodiment, the testing equipment further includes a return mechanism 20, which is located at the bottom of the frame 1. The structure of the return mechanism 20 is the same as that of the moving mechanism 2, and the return mechanism 20 is located directly below the moving mechanism 2. One end of the return mechanism 20 and the moving mechanism 2 is connected to an external lifting mechanism. Therefore, the specific structure of the return mechanism 20 will not be described in detail. After the product under test completes the test, the second drive component 9 conveys the tray and the product under test to the external lifting mechanism at the end. The lifting mechanism descends to the return mechanism 20 and conveys the tray and the product under test to the return mechanism 20, realizing the return circulation of the tray and the product under test, thereby saving storage space.

[0047] In one specific embodiment, protective covers 5 are provided on both sides of the frame 1 along its width to form a relatively enclosed area, isolating the key components inside the frame 1, such as the testing mechanism 3, the moving mechanism 2, and the product under test, from the external environment. During equipment operation, the protective covers 5 can prevent operators or unauthorized personnel from accidentally contacting dangerous parts such as live or moving components inside the frame 1, thereby avoiding potential safety accidents such as electric shock and pinching injuries.

[0048] In one specific embodiment, the frame 1 is rotatably provided with dustproof windows 6 on both sides along the width direction, and the dustproof windows 6 have a viewing window 7 in the middle.

[0049] When the dustproof window 6 is closed, it forms a closed space, preventing dust and debris from entering the interior from the side of the rack 1. When internal maintenance, observation, or other operations are required, the dustproof window 6 can be opened by rotating it, facilitating personnel operation or tool access. The viewing window 7 in the middle of the dustproof window 6 is usually made of transparent material (such as glass or transparent plastic). With the dustproof window 6 closed, operators can clearly observe the operation of the equipment inside the rack 1 through the viewing window 7, such as the movement of the testing mechanism 3 and the status of the probes, without having to open the dustproof window 6, thus avoiding the introduction of dust or interference with equipment operation that may be caused by frequent opening and closing of the dustproof window 6.

[0050] In one specific embodiment, a control panel 8 is also provided on the outside of the frame 1 for convenient operation by the operator. The control panel 8 is typically equipped with various input elements such as buttons, knobs, and keyboards, as well as feedback elements such as displays and indicator lights. The operator issues various commands through the input elements on the control panel 8, such as starting the test, stopping the test, adjusting test parameters, and selecting the test mode. These commands are converted into electrical signals and transmitted to the control system of the test equipment through internal electrical circuits.

[0051] After receiving the signal from the control panel 8, the control system of the testing equipment controls the various components of the testing equipment according to the preset program and logic, such as driving the movement mechanism 2 and the testing mechanism 3, and controlling the contact and signal transmission between the probe group 16 and the product under test. At the same time, the control system will feed back the equipment's operating status, test results, and other information to the display screen or indicator lights on the control panel 8, presenting them to the operator in an intuitive way.

[0052] This application places the control panel 8 outside the rack 1, allowing operators to centrally control the testing equipment from outside, eliminating the need for direct contact with the complex mechanical and electrical components inside. This significantly improves operational convenience and safety, reducing the risk of misoperation. The display screen and indicator lights on the control panel 8 provide real-time information on the equipment's operating status, testing progress, and test results, enabling operators to intuitively understand the equipment's operation, facilitate timely problem detection and handling, and improve testing efficiency and accuracy. The control panel 8 can also be connected to a remote monitoring system, enabling remote operation, monitoring, and management of the equipment. This allows technicians to perform real-time monitoring and fault diagnosis from locations far from the equipment, providing timely technical support and improving equipment management efficiency and operational reliability.

[0053] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An online four-wire integrated testing device, comprising a frame, characterized in that: It also includes mobile facilities and testing facilities; The frame is equipped with a test platform, the moving mechanism is mounted on the test platform, and the product to be tested is placed on the horizontal moving end of the moving mechanism; The testing mechanism is located above the moving mechanism. The testing mechanism includes a lifting assembly, several probe groups, and several electrical drive rods. The lifting assembly is located on the frame. Each of the electrical drive rods is detachably connected to the vertical drive end of the lifting assembly. The probe groups are slidably connected to the corresponding electrical drive rods to be inserted into the test ports of the products under test.

2. The online four-wire integrated testing equipment according to claim 1, characterized in that, The lifting assembly includes two sets of first driving components and two sets of mounting brackets. Each first driving component is respectively disposed on both sides of the frame, and each mounting bracket is respectively disposed on the vertical driving end of the first driving component. Both ends of each electrical driving rod are detachably connected to the corresponding mounting bracket.

3. The online four-wire integrated testing equipment according to claim 2, characterized in that, The mounting bracket has horizontal guide rails on both sides, and the two ends of each electrical drive rod are detachably connected to the guide rails, and the electrical drive rods can slide along the guide rails.

4. The online four-wire integrated testing equipment according to claim 1, characterized in that, The probe group includes several probes arranged adjacent to each other, and the probes are connected to the electrical drive rod.

5. The online four-wire integrated testing device according to claim 1, characterized in that, The moving mechanism includes a support and two sets of second driving components. The two sets of second driving components are arranged in parallel on both sides of the test platform. Each set of second driving components has two horizontal driving ends. The two ends of the support are fixed to the two horizontal driving ends of the second driving components. The product to be tested is placed on the support.

6. The online four-wire integrated testing device according to claim 5, characterized in that, The support component includes a support plate and a third driving component. Two sets of the third driving component are provided, and the two ends of the support plate are respectively connected to the vertical driving ends of the third driving component.

7. The online four-wire integrated testing device according to claim 5, characterized in that, The moving mechanism also includes several sets of fourth driving components, which are fixed on the test platform. The horizontal driving ends of two sets of fourth driving components arranged opposite to each other are respectively connected to two sets of second driving components.

8. The online four-wire integrated testing device according to claim 7, characterized in that, The testing equipment also includes a recirculation mechanism, which is located at the bottom of the frame and directly below the moving mechanism. One end of the recirculation mechanism and the moving mechanism is connected to an external lifting mechanism.

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