Universal test box for electronic products
By designing a universal test box with standardized interfaces and modular slots, the problems of low accuracy and poor adaptability of existing equipment have been solved, achieving high precision, simplified operation and diversified adaptability, and improving the universality and maintainability of electronic product testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI CONGKE TECH CO LTD
- Filing Date
- 2025-04-27
- Publication Date
- 2026-04-14
AI Technical Summary
Existing electronic product testing equipment lacks versatility; traditional test chambers are low in precision and complex to operate; and industry-specific equipment has poor adaptability, making it difficult to meet diverse needs.
A universal test box was designed, which adopts a standardized aviation interface, modular circuit board slots and a high-precision voltage drop module, and combines an MCU chip to achieve high-precision detection. It supports testing of multiple devices and simplifies operation through module plug-and-play.
It improves detection accuracy and applicability, reduces operational complexity, enhances equipment maintainability and scalability, and adapts to different testing needs.
Smart Images
Figure CN224122639U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of testing equipment technology, specifically a universal testing box for electronic products. Background Technology
[0002] In key fields such as electronics manufacturing, automotive electronics, home appliances, and industrial control, universal test chambers, as core equipment for ensuring product quality and performance, are increasingly demonstrating their strategic value. Current testing technologies are facing significant innovation demands: traditional test chambers generally suffer from two major limitations—firstly, simple testing devices using LED indicators or mechanical switches have inherent defects such as low testing accuracy (typically only ±5%) and limited functionality; secondly, while industry-specific testing equipment has some targeting, its overall scope is too narrow, with poor cross-domain adaptability, making it difficult to meet the diversified and integrated development needs of modern electronic products. Based on this, this application proposes a universal test chamber for electronic products. Utility Model Content
[0003] This invention provides a universal test box for electronic products, which solves the problems mentioned in the background art that existing electronic product testing equipment lacks universality and that customized equipment has high operational complexity.
[0004] This utility model provides the following technical solution: a universal test box for electronic products, including a box body, on which various standardized aviation interfaces, plugs, USB interfaces, indicator lights and switches are provided. The box body has a CAN card and a circuit board slot inside. The circuit board slot adopts a modular design and includes a base plate connected to the plug-in wiring harness. Adjacent base plates are equidistantly arranged, and universal slots are uniformly arranged on the top of the base plates. Plug-in modules are inserted into the base plates through the universal slots. Metal strips are uniformly arranged on the top of the inner cavity of the box body, and the metal strips are located above the voltage drop module and the fan control module.
[0005] Preferably, the standardized aviation interface includes a 45-pin aviation plug, a 26-pin aviation plug, a 4-pin aviation plug one, a 4-pin aviation plug two, and a 5-pin aviation plug.
[0006] Preferably, the 45-pin aviation plug, 26-pin aviation plug, 4-pin aviation plug I, indicator light and switch are all located on the front of the housing, and the back of the housing is provided with 4-pin aviation plug II, 5-pin aviation plug, plug and USB interface, and the plug is a three-phase plug.
[0007] Preferably, ventilation slots are evenly arranged on the side of the enclosure near the circuit board slot, and a cooling fan is arranged on the side of the enclosure away from the circuit board slot; a switching power supply is installed inside the enclosure.
[0008] Preferably, the bottom of the base plate is uniformly provided with isolation columns, the base plate is connected to the bottom of the inner cavity of the box through the isolation columns, and heat sinks are provided on the surface of the isolation columns and the surface of the slots.
[0009] Compared with the prior art, the present invention has the following beneficial effects:
[0010] 1. This universal test box for electronic products simplifies the testing process, improves testing accuracy, and is suitable for batch testing of different products by combining highly integrated universal high-precision pluggable voltage drop modules and adapter programs, thereby reducing costs and improving stability.
[0011] 2. This universal test box for electronic products facilitates the installation, replacement, and maintenance of voltage drop modules through modular plug-in, improving the maintainability and scalability of the test box and simplifying the assembly process; enabling the test box to adapt to different testing needs and circuit configuration changes. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the internal structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the circuit board slot of this utility model;
[0014] Figure 3 The structure of this utility model Figure 2 Diagram showing the view from below;
[0015] Figure 4 This is a schematic diagram showing the connection between the circuit board slot and the housing of this utility model.
[0016] In the diagram: 1. Cabinet; 2. 4-pin aviation connector 1; 3. Indicator light; 4. Switch; 5. 45-pin aviation connector; 6. 26-pin aviation connector; 7. 5-pin aviation connector; 8. 4-pin aviation connector 2; 9. Plug; 10. USB interface; 11. Ventilation slot; 12. Cooling fan; 13. Metal strip; 14. Voltage drop module; 15. Switching power supply; 16. Base plate; 17. Slot; 18. CAN card; 19. Isolation post. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] This utility model provides an embodiment: Please refer to Figures 1-3 A universal test box for electronic products includes a housing 1, on which various standardized aviation interfaces, plugs 9, USB interfaces 10, indicator lights 3, and switches 4 are provided, such as... Figure 1 As shown, the standardized aviation interfaces include a 45-pin aviation plug 5, a 26-pin aviation plug 6, a 4-pin aviation plug-1 2, a 4-pin aviation plug-2 8, and a 5-pin aviation plug 7. The 45-pin aviation plug 5, the 26-pin aviation plug 6, the 4-pin aviation plug-1 2, the indicator light 3, and the switch 4 are all located on the front of the housing 1. The back of the housing 1 is equipped with a 4-pin aviation plug-2 8, a 5-pin aviation plug 7, a plug 9, and a USB interface 10. Plug 9 is a three-phase plug, and switch 4 is a rocker switch. Through the setting of multiple standardized aviation interfaces, this universal test box can adapt to the testing needs of various devices, achieving multiple uses in one machine. This makes the test box versatile and suitable for fields involving voltage, current, resistance, PWM, and switch control, such as automotive switches, automotive electronics, home appliances, and industrial control.
[0019] The interior of the enclosure 1 is equipped with circuit board slots. The circuit board slots adopt a modular design and include a base plate 16 connected to the plug-in wiring harness. Adjacent base plates 16 are equidistantly arranged, and universal slots 17 are evenly arranged on the top of the base plates 16. Plug-in modules are inserted into the base plates 16 through the universal slots 17. The plug-in modules can be voltage drop modules 14 and fan control modules. The recessed design of the circuit board slots provides a stable and reliable installation platform for components such as voltage drop modules 14, ensuring that the circuit board connections between various components are firm and accurate, reducing the risk of failure due to poor connections. At the same time, the module plug-in method facilitates the installation, replacement, and maintenance of voltage drop modules 14, improving the maintainability and scalability of the test box, simplifying the assembly process, and enabling the test box to adapt to different testing requirements and circuit configuration changes, further improving the adaptability of the test box.
[0020] The voltage drop module is used to acquire and output voltage and current values in the circuit. It can be considered a high-precision multimeter, employing a 32-bit MCU chip and peripheral circuitry to acquire voltage, current, on / off signals, PWM signals, and jitter time. It enables high-precision measurements including voltage range detection (6 ranges variable), current range detection (4 ranges variable), on / off detection, PWM detection, output on / off control, and jitter detection.
[0021] The enclosure 1 contains a CAN card 18, which is used to output the signal collected by the voltage drop module to the computer. The enclosure 1 also contains electrical connection lines for the operation of the general test box.
[0022] Metal strips 13 are evenly distributed at the top of the inner cavity of the enclosure 1, and are located above the voltage drop module 14 and the fan control module. The metal strips 13 accelerate the heat conduction speed inside the enclosure 1. The high thermal conductivity of the metal strips can quickly conduct the heat generated by each module in the test chamber during operation, avoiding local overheating that could lead to test data deviation or equipment damage, and also improving the strength of the enclosure 1.
[0023] Ventilation slots 11 are evenly distributed on the side of the housing 1 near the circuit board slot, such as... Figure 1 As shown, ventilation slots 11 are provided on both sides of the front end of the housing 1. Dust filters are provided on the outer side of the ventilation slots 11 to intercept dust. A cooling fan 12 is provided on the side of the housing 1 away from the circuit board slot. The cooling fan 12 and ventilation slots 11 can increase the air flow speed inside the housing 1, which is conducive to the heat dissipation of the housing 1. In addition, isolation columns 19 are evenly provided on the bottom of the base plate 16. The base plate 16 is connected to the bottom of the inner cavity of the housing 1 through the isolation columns 19. With the isolation columns 19, the bottom of the base plate 16 can be suspended. When the cooling fan 12 is working, air can flow from the bottom of the base plate 16, which can accelerate the heat dissipation speed of the circuit board slot. Heat sinks are provided on the surface of the isolation columns 19 and the surface of the slot 17. The heat sink material can be thermally conductive silicone. The heat sink can improve the heat dissipation speed of the circuit board slot.
[0024] The enclosure 1 is equipped with a switching power supply 15. The enclosure 1 can be made of aluminum alloy to improve the heat dissipation of this general test box.
[0025] All electrical components involved in this application are prior art. Those skilled in the art understand their connection methods. With the help of those skilled in the art, all electrical components in this application and their compatible power supplies can be connected by wires. According to the actual situation, a suitable controller can be selected to meet the control requirements. For specific connections and control sequences, please refer to the description below. The electrical connection between each electrical component is completed in the order of operation. The detailed connection methods are well known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control.
[0026] In summary: When using this universal test box for electronic products, after placing the universal testing platform, connect the target to the computer, turn on the power, and close switch 4 on the test box panel to start the test box. The computer will open the corresponding testing program, and the test box will automatically transmit the signal from the external aviation plug to the voltage drop module 14. After internal processing, the voltage drop module 14 transmits voltage, current, and pulse signals to the CAN card 18, and finally transmits them to the computer via the CAN card 18. Under the test program set by the computer, the voltage drop module 14 relay opens and closes to form a detection circuit. The computer compares the data input to the detection circuit with the threshold range set by the corresponding program, and finally determines whether the product is qualified, thus completing the test. No other manual action is required except for connecting the target to the test. When testing different target objects, such as car switches, automotive electronics, home appliances, circuit boards, etc., this universal test box does not require operation of the box body 1 itself or the universal test software. Simply open the computer test software and perform simple drag-and-drop operations at the program level to change the number and combination of components such as ordinary lights, qualified lights, buttons, timers, etc. to build a test program that adapts to the test target, thus achieving high universality and adaptability.
[0027] All standard parts used in this utility model can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods of each part all adopt conventional means such as bolts that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art. Although the embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.
Claims
1. A universal test chamber for electronic products, comprising a chamber body (1), characterized in that: The enclosure (1) is equipped with various standardized aviation interfaces, plugs (9), USB interfaces (10), indicator lights (3) and switches (4). Inside the enclosure (1) are CAN cards (18) and circuit board slots. The circuit board slots adopt a modular design. The circuit board slots include base plates (16) connected to plug-in wiring harnesses. Adjacent base plates (16) are equidistantly arranged, and universal slots (17) are uniformly arranged on the top of the base plates (16). Plug-in modules are inserted into the base plates (16) through the universal slots (17). Metal strips (13) are uniformly arranged on the top of the inner cavity of the enclosure (1). The metal strips (13) are located above the voltage drop module (14) and the fan control module.
2. The universal test chamber for electronic products according to claim 1, characterized in that: The standardized aviation interfaces include a 45-pin aviation plug (5), a 26-pin aviation plug (6), a 4-pin aviation plug one (2), a 4-pin aviation plug two (8), and a 5-pin aviation plug (7).
3. A universal test chamber for electronic products according to claim 2, characterized in that: The 45-pin aviation plug (5), 26-pin aviation plug (6), 4-pin aviation plug one (2), indicator light (3) and switch (4) are all located on the front of the housing (1). The back of the housing (1) is provided with 4-pin aviation plug two (8), 5-pin aviation plug (7), plug (9) and USB interface (10). The plug (9) is a three-phase plug.
4. A universal test chamber for electronic products according to claim 1, characterized in that: Ventilation slots (11) are evenly arranged on the side of the housing (1) near the circuit board slot, and a cooling fan (12) is arranged on the side of the housing (1) away from the circuit board slot; a switching power supply (15) is arranged inside the housing (1).
5. A universal test chamber for electronic products according to claim 1, characterized in that: The bottom of the base plate (16) is uniformly provided with isolation columns (19), and the base plate (16) is connected to the bottom of the inner cavity of the box (1) through the isolation columns (19). The surface of the isolation columns (19) and the surface of the slot (17) are provided with heat sinks.