Test board for bidirectional inverter of mobile power supply

Abstract

The utility model provides a mobile power supply bidirectional inverter test bench, which relates to the technical field of power electronic test equipment and comprises an operation bench, and a positioning mechanism, a clamping mechanism and a test assembly which are arranged on the operation bench. The positioning mechanism comprises a limiting frame arranged on the table top of the operation table, and an anti-static panel is arranged in the limiting frame; the clamping mechanism comprises a fixing frame and a downward pressing mechanism installed on the fixing frame in a sliding mode, the fixing frame comprises a vertically-arranged guide rail, and the downward pressing mechanism is connected with the clamping mechanism in a sliding mode through the guide rail. The testing assembly comprises a contact array located in the limiting frame, a testing circuit, a plurality of buttons and a plurality of indicating lamps, wherein the buttons and the indicating lamps are installed on the operation table. The contact array, the buttons and the indicating lamps are electrically connected through the testing circuit. According to the utility model, rapid positioning and fixing of the circuit board are realized through cooperation of the limiting frame and the pressing mechanism, reliable electrical connection is realized by using the contact array, and the technical defects of low efficiency and poor contact in a traditional manual test are overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of power electronic testing equipment, in particular to a mobile power supply bidirectional inverter test bench. Background Art

[0002] With the rapid development of new energy technologies, mobile power products are widely used in the market. As the core component of mobile power, the performance of the bidirectional inverter directly affects the overall quality of the product, so it needs to undergo rigorous functional testing during the production process.

[0003] Currently, bidirectional inverter testing primarily relies on manual wiring. Specifically, technicians manually connect test circuits to the various test contacts on the bottom of the inverter circuit board and verify the operating status of each functional circuit by performing on-off tests on different contact combinations. This testing method has numerous technical drawbacks: First, testers must repeatedly change wiring combinations, which is cumbersome and leads to low testing efficiency; second, manual wiring is prone to poor contact, affecting the accuracy and reliability of test data; and third, due to the lack of a standardized testing process, test results rely heavily on the operator's personal experience, making it difficult to ensure consistent test quality. Utility Model Content

[0004] The purpose of the utility model is to provide a mobile power bidirectional inverter test bench, which can improve test efficiency, ensure test accuracy, and achieve standardized operation.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] A mobile power bidirectional inverter test bench comprises: an operating table, a positioning mechanism installed on the operating table, a clamping mechanism and a test component;

[0007] The positioning mechanism includes a limit frame provided on the operating table surface;

[0008] The clamping mechanism includes a fixed frame and a pressing mechanism slidably mounted on the fixed frame, the fixed frame includes a vertically arranged guide rail, and the pressing mechanism is slidably connected to the clamping mechanism via the guide rail;

[0009] The test assembly includes a contact array located in a limit frame, a test circuit, a plurality of buttons and a plurality of indicator lights installed on an operating table, and the contact array, buttons and indicator lights are electrically connected through the test circuit.

[0010] Furthermore: the placement surface in the limiting frame is an anti-static panel.

[0011] Furthermore: the pressing mechanism includes a pressing plate and a plurality of pressing rods vertically arranged at the lower end of the pressing plate, and the pressing rods are evenly distributed along the edge of the pressing plate.

[0012] Furthermore: the pressing plate is made of transparent acrylic material.

[0013] Furthermore: the bottom end of the pressure rod is a pointed end, and the pressure rod is made of insulating plastic.

[0014] Furthermore: the pressing mechanism also includes a driving cylinder installed on the fixing frame, and the telescopic rod of the driving cylinder is fixedly connected to the pressing plate vertically downward.

[0015] Furthermore: the test component also includes a data processing module, the data processing module includes a counter and a memory, and the data processing module is electrically connected to the test circuit.

[0016] Furthermore: a pressure spring is provided below the end of each contact in the contact array.

[0017] Furthermore: the surface of each contact in the contact array is plated with a silver layer.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] First, this device achieves one-time positioning and fixation of the circuit board through the cooperation of a limit frame and a downward pressure mechanism, eliminating the need for repeated manual wiring operations. The limit frame provides horizontal positioning, while the downward pressure mechanism applies vertical pressure to the circuit board through pressure rods evenly distributed along its edges, enabling the contact array to simultaneously contact all test points on the circuit board. This eliminates the tedious task of testers repeatedly changing wiring combinations and significantly improves testing efficiency.

[0020] Second, this device incorporates a pressure spring at the end of each contact in the contact array, and silver-plated the contact surface, achieving a reliable electrical connection with the circuit board's test points. The pressure spring compensates for circuit board flatness errors, ensuring stable contact between each contact and the test point, while the silver plating enhances the contact's electrical conductivity. These design features overcome the potential for poor contact during manual wiring, ensuring the accuracy and reliability of test data.

[0021] Third, this device incorporates a test circuit that electrically connects the contact array, buttons, and indicator lights, and is equipped with a data processing module, standardizing the testing process. Through pre-set circuit connections and operational procedures, as well as automated data acquisition and storage, test results no longer rely on the operator's personal experience, effectively ensuring consistent test quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1This is a structural diagram of a mobile power bidirectional inverter test bench of this device;

[0023] In the picture:

[0024] 1. Operating table; 2. Fixed frame; 2.1. Guide rail; 3. Limit frame; 3.1. Anti-static panel; 4. Contact; 5. Indicator light; 6. Button; 7. Pressure plate; 8. Pressure rod; 9. Driving cylinder. DETAILED DESCRIPTION

[0025] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] like Figure 1 As shown: A mobile power bidirectional inverter test bench, comprising: an operating table 1, a positioning mechanism, a clamping mechanism and a test component installed on the operating table 1;

[0028] The positioning mechanism includes a limit frame 3 provided on the surface of the operating table 1; the placement surface inside the limit frame 3 is an anti-static panel 3.1.

[0029] The clamping mechanism includes a fixed frame 2 and a pressing mechanism slidably mounted on the fixed frame 2. The fixed frame 2 includes a vertically arranged guide rail 2.1, and the pressing mechanism is slidably connected to the clamping mechanism via the guide rail 2.1. The pressing mechanism includes a pressing plate 7 and a plurality of pressing rods 8 vertically arranged at the lower end of the pressing plate 7, and the pressing rods 8 are evenly distributed along the edge of the pressing plate 7. The pressing plate 7 is made of transparent acrylic, and the pressing rods 8 are pointed at the bottom end and made of insulating plastic. The pressing mechanism also includes a driving cylinder 9 mounted on the fixed frame 2, and the telescopic rod of the driving cylinder 9 is vertically and downwardly fixedly connected to the pressing plate 7.

[0030] The test assembly includes an array of contacts 4 within a limiting frame 3, a test circuit, several buttons 6 mounted on an operating console 1, and several indicator lights 5. The test circuit electrically connects the array of contacts 4, buttons 6, and indicator lights 5. The test assembly also includes a data processing module, which includes a counter and memory and is electrically connected to the test circuit. A pressure spring is located below the end of each contact 4 in the array, and each contact 4 in the array is plated with silver.

[0031] The working principle of this utility model is as follows:

[0032] When using the mobile power bidirectional inverter test bench of the present invention, the inverter circuit board to be tested is first placed within a limiting frame 3 on the surface of the operating table 1. The limiting frame 3 limits the horizontal position of the circuit board, keeping it in a predetermined position. At the same time, the anti-static panel 3.1 within the limiting frame 3 prevents static electricity from damaging the circuit board.

[0033] After the circuit board is positioned, it is secured by a downward pressure mechanism attached to guide rail 2.1. Specifically, the telescopic rod of the driving cylinder 9 drives the pressing plate 7 downward. Several pressure rods 8, evenly distributed at the lower end of the pressing plate 7, simultaneously apply pressure to the circuit board, ensuring stable fixation. Because the pressing plate 7 is made of transparent acrylic, the operator can visually observe the circuit board's securement status. The pressure rods 8, made of insulating plastic and with pointed tips at their bases, ensure accurate positioning and avoid damage to the circuit board.

[0034] After the circuit board is secured, the array of contacts 4 within the retaining frame 3 contacts the test points on the circuit board. The pressure springs at the ends of each contact 4 compensate for any flatness variations in the circuit board, ensuring stable contact between the contact 4 and the test point. The silver coating on the surface of the contacts 4 enhances electrical conductivity and ensures a reliable electrical connection. At this point, buttons 6 on the console 1 control the test circuit, establishing a pre-set conductive path between the various contacts 4. Indicator lights 5 then display the corresponding test results.

[0035] During the test, a data processing module electrically connected to the test circuit records test data in real time. A counter records the number of tests, and a memory stores the test data for subsequent data analysis and quality traceability. This automated testing approach ensures standardized testing throughout the entire process, resulting in objective and reliable test results, effectively avoiding inconsistent test results caused by operational variability during manual testing.

[0036] This automated testing method transforms the repetitive manual wiring operations into a one-time positioning, fixation and automatic testing process. It not only significantly improves test efficiency, but also ensures the accuracy of test data through reliable mechanical structure and electrical connection design, while achieving standardization of the test process and traceability management of data.

[0037] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those familiar with the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A mobile power bidirectional inverter test bench, characterized in that: include: An operating table, a positioning mechanism, a clamping mechanism and a test assembly installed on the operating table; The positioning mechanism includes a limit frame provided on the operating table surface; The clamping mechanism includes a fixed frame and a pressing mechanism slidably mounted on the fixed frame, the fixed frame includes a vertically arranged guide rail, and the pressing mechanism is slidably connected to the clamping mechanism via the guide rail; The test assembly includes a contact array located in a limit frame, a test circuit, a plurality of buttons and a plurality of indicator lights installed on an operating table, and the contact array, buttons and indicator lights are electrically connected through the test circuit.

2. A mobile power bidirectional inverter test bench according to claim 1, characterized in that: The placement surface inside the limit frame is an anti-static panel.

3. The mobile power bidirectional inverter test bench according to claim 1, characterized in that: The pressing mechanism comprises a pressing plate and a plurality of pressing rods vertically arranged at the lower end of the pressing plate, and the pressing rods are evenly distributed along the edge of the pressing plate.

4. A mobile power bidirectional inverter test bench according to claim 3, characterized in that: The pressing plate is made of transparent acrylic material.

5. The mobile power bidirectional inverter test bench according to claim 3, characterized in that: The bottom end of the pressure rod is a pointed end, and the pressure rod is made of insulating plastic.

6. The mobile power bidirectional inverter test bench according to claim 1, characterized in that: The pressing mechanism further comprises a driving cylinder mounted on the fixing frame, and a telescopic rod of the driving cylinder is fixedly connected to the pressing plate vertically downward.

7. The mobile power bidirectional inverter test bench according to claim 1, characterized in that: The test component further includes a data processing module, which includes a counter and a memory, and the data processing module is electrically connected to the test circuit.

8. The mobile power bidirectional inverter test bench according to claim 1, characterized in that: A pressure spring is provided below the end of each contact in the contact array.

9. The mobile power bidirectional inverter test bench according to claim 1, characterized in that: The surface of each contact in the contact array is plated with a silver layer.

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