Portable electronic component testing device

Abstract

The utility model relates to a portable electronic component testing device, which belongs to the field of testing devices and comprises a testing box body, a testing module, a testing board card, a heating plate and a vibrator. The test module and the heating plate are arranged in the test box body, the test board card is arranged in the test module, and the vibrators are arranged on the two sides of the test board card; the test module comprises a cold conduction plate, a test plate fixture, a clamping pressure plate and locking devices, the cold conduction plate is fixedly connected with a first side surface of the test plate fixture, the clamping pressure plate is fixedly connected with a second side surface of the test plate fixture, and the locking devices are arranged on two sides of the clamping pressure plate; the test board card is arranged on the test board card fixture of the test module, and the test board card is located between the cold guide plate and the test board card fixture. According to the utility model, the test module and the heating plate are arranged, so that the device can simulate various environments, and the device is convenient to carry and operate due to the adoption of a compact box body structure.

Description

Technical Field

[0001] This utility model belongs to the field of testing devices, and specifically relates to a portable electronic component testing device. Background Technology

[0002] With the rapid development of electronic technology, electronic components are increasingly used in various application scenarios. The performance and reliability of these components are crucial to the functionality and stability of the entire system. Therefore, accurate and rapid testing and verification of electronic components has become an indispensable part of the electronics industry.

[0003] Traditional electronic component testing typically relies on fixed testing equipment in a laboratory environment. This equipment is usually indoors, often bulky and difficult to move, and the tests performed are singular and irreplaceable, failing to meet the needs of field testing or multi-scenario testing. Furthermore, differences may exist between the laboratory testing environment and the actual application environment, leading to inconsistencies between test results and actual performance in real-world applications.

[0004] During the development and application of electronic components, it is necessary to test their functional performance, process reliability, limiting capabilities, environmental adaptability, and assembly suitability. This process exposes any weaknesses in the components, provides manufacturers with suggestions for improvement in material selection, processes, and design, guides users in the correct and reasonable use of components, and reduces losses caused by non-compliance in development or improper use. Furthermore, it ensures compliance with relevant product standards and calibration of product documentation.

[0005] When evaluating the functionality, performance, and environmental adaptability of electronic components in the field, it becomes apparent that the components cannot be placed independently in a test chamber or platform for environmental testing. Instead, the components must be placed on a programmable general-purpose test board, and auxiliary circuits are used to activate the components to be tested and obtain the desired output. The board is then placed in the test chamber and connected to the defined interface to achieve electrical connection. Finally, the chamber is placed in the test chamber for environmental testing, which increases the difficulty of the testing. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a portable electronic component testing device. Through its compact design and modular structure, this device can be easily carried to the testing site, providing the necessary tooling conditions for testing electronic components and ensuring the objectivity and accuracy of the testing process.

[0007] To achieve the above objectives, the present invention discloses the following technical solution:

[0008] A portable electronic component testing device includes a test chamber, a test module, a test board, a heating plate, and a vibrator;

[0009] The test module and heating plate are both located inside the test chamber, the test board is located inside the test module, and vibrators are respectively provided on both sides of the test board;

[0010] The test module includes a cooling plate, a test board clamp, a mounting plate, and a locking device. The cooling plate is fixedly connected to the first side of the test board clamp, and the mounting plate is fixedly connected to the second side of the test board clamp. Locking devices are provided on both sides of the mounting plate.

[0011] The test board is mounted on the test board fixture, and the test board is positioned between the cooling plate and the test board fixture.

[0012] The heating plate is disposed within the heating space of the test module. The heating plate is provided with a mounting plate, a negative electrode plate, a negative electrode terminal, a heating element, a positive electrode plate, and a positive electrode terminal. The negative electrode plate, the positive electrode plate, and the heating element are all disposed on the mounting plate. The positive electrode plate and the negative electrode plate are disposed opposite each other on both sides of the heating element. The negative electrode terminal is disposed on the surface of the mounting plate on the side where the negative electrode plate is located, and the positive electrode terminal is disposed on the surface of the mounting plate on the side where the positive electrode plate is located.

[0013] The vibrator includes a vibrator housing and a vibrating motor stator. The two ends of the vibrating motor stator are fixedly connected to the ends of the two vibrator housings, respectively. An eccentric block and a vibrating motor rotor are provided inside the vibrating motor stator. The two ends of the vibrating motor rotor are connected to the first ends of the two eccentric blocks, respectively. The second ends of the eccentric blocks are connected to the inner wall of the vibrating motor stator.

[0014] Preferably, the test chamber includes a cover plate, side plates, a bottom plate, a front baffle, a front panel, a frame, and a fixing plate. The two ends of the cover plate are respectively connected to the first ends of the two side plates, and the two ends of the bottom plate are respectively connected to the second ends of the two side plates. The cover plate and the bottom plate are perpendicular to the side plates. The cover plate, side plates, and bottom plate form a rectangular structure. The fixing plate is disposed within the rectangular structure. The frame is connected to the first side of the rectangular structure, and the front baffle and the front panel are respectively connected to the second side of the rectangular structure.

[0015] Preferably, the rectangular structure includes a first heating space, a test module accommodating space, and a second heating space.

[0016] Preferably, the test module contains two fixing plates, and the rectangular grooves of the two fixing plates are symmetrically arranged, so that the two sides of the test module can be slidably connected to the rectangular grooves of the two fixing plates respectively.

[0017] Preferably, the test board is equipped with a test system.

[0018] Preferably, the test system includes a CPCI interface, a power module, a voltage regulator circuit, a reference circuit, a control module, a test component socket, a conditioning module, and a functional test port.

[0019] Preferably, the power module provides power to each component.

[0020] Preferably, the control module is connected to the tested component, heating plate, vibrator, and host computer, and the output terminal of the control module is connected to the host computer.

[0021] Optionally, the locking device is a locking sleeve.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The inclusion of a vibrator, a test module, and a heating plate in this invention enables the device to perform various environmental tests, including those involving temperature, humidity, and thermal cycling. Furthermore, the system's compact box structure design makes it easy to carry and operate.

[0024] The verification chassis and test board in this invention adopt a modular design, which enables the device to be quickly disassembled and configured according to test requirements, thus shortening the test preparation time. Attached Figure Description

[0025] Figure 1 This is an assembly drawing of the verification chassis of this utility model;

[0026] Figure 2 This is an exploded view of the verification chassis of this utility model;

[0027] Figure 3 This is an assembly drawing of the test module of this utility model;

[0028] Figure 4 This is an exploded view of the test module of this utility model;

[0029] Figure 5 This is a structural diagram of the heating plate of this utility model;

[0030] Figure 6 This is a structural diagram of the vibrator of this utility model;

[0031] Figure 7 This is the circuit layout diagram of the test board for this novel application;

[0032] Figure 8 The circuit principle of the power module of this utility model;

[0033] Figure 9This is a schematic diagram of the conditioning circuit of this utility model;

[0034] Figure 10 This is a schematic diagram of the control module of this utility model.

[0035] The following are descriptions of some of the attached figures:

[0036] 1. Test chamber; 2. Test module; 3. Test board; 4. Heating plate; 5. Vibrator; 6. Rectangular groove; 7. First heating space; 8. Test module housing space; 9. Second heating space; 101. Cover plate; 102. Front baffle; 103. Front panel; 104. Base plate; 105. Fixing plate; 106. Handle; 107. Side plate; 108. Frame; 201. Cooling plate; 202. Test board clamp; 203. Mounting pressure plate; 204. Locking device; 301. Component socket; 302. Control module; 303. Reference circuit; 304. Conditioning module; 305. Functional test port; 3 06. CPCI interface; 307. Power module; 308. Voltage regulator circuit; 401. Negative plate; 402. Negative terminal; 403. Positive terminal; 404. Heating element; 405. Positive plate; 501. Vibrator housing; 502. Vibration motor stator; 503. Eccentric block; 504. Vibration motor rotor; 3041. Low-frequency filter circuit; 3042. High-frequency filter circuit; 30403. Signal amplification circuit; 30701. AC input circuit; 30702. BUCK circuit; 30703. Feedback circuit; 30704. PWM generator; 30705. Triangle wave generator. Detailed Implementation

[0037] Exemplary embodiments, features, and aspects of the present invention will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0038] This utility model provides a portable electronic component testing device, such as... Figures 1-10 As shown, it includes a test chamber 1, a test module 2, a test board 3, a heating plate 4, and a vibrator 5; the test module 2 and the heating plate 4 are both located inside the test chamber 1, the test board 3 is located inside the test module 2, and the vibrator 5 is located on both sides of the test board 3.

[0039] The test module 2 includes a cooling plate 201, a test board clamp 202, a mounting plate 203, and a locking device 204. The cooling plate 201 is fixedly connected to the first side of the test board clamp 202, the mounting plate 203 is fixedly connected to the second side of the test board clamp 202, and the locking device 204 is disposed on both sides of the mounting plate 203.

[0040] The test board 3 is set on the test board fixture 202 of the test module 2, and the test board 3 is located between the cooling plate 201 and the test board fixture 202.

[0041] The heating plate 4 is set in the heating space of the test module 2. The heating plate 4 is provided with a mounting plate, a negative electrode plate 401, a negative electrode terminal 402, a heating element 404, a positive electrode plate 405, and a positive electrode terminal 403. The negative electrode plate 401, the heating element 404, and the positive electrode plate 405 are all set on the mounting plate. The positive electrode plate 405 is set opposite to the negative electrode plate 401 on both sides of the heating element 404. The negative electrode terminal 402 is set on the mounting plate surface on the side where the negative electrode plate 401 is located, and the positive electrode terminal 403 is set on the mounting plate surface on the side where the positive electrode plate 405 is located.

[0042] The vibrator 5 includes a vibrator housing 501 and a vibrating motor stator 502. The two ends of the vibrating motor stator are fixedly connected to the ends of the two vibrator housings 501 respectively. The vibrating motor stator 502 is provided with an eccentric block 503 and a vibrating motor rotor 504. The two ends of the vibrating motor rotor 504 are connected to the first ends of the two eccentric blocks 503 respectively, and the second ends of the eccentric blocks 503 are connected to the inner wall of the vibrating motor stator 502.

[0043] The test chamber 1 includes a cover plate 101, side plates 107, a bottom plate 104, a front baffle 102, a front panel 103, a frame 108, and a fixing plate 105. The two ends of the cover plate 101 are respectively connected to the first ends of the two side plates 107, and the two ends of the bottom plate 104 are respectively connected to the second ends of the two side plates 107. The cover plate 101 and the bottom plate 104 are perpendicular to the side plates 107. The cover plate 101, the side plates 107, and the bottom plate 104 form a rectangular structure. The fixing plate 105 is set inside the rectangular structure. The frame 108 is connected to the first side of the rectangular structure, and the front baffle 102 and the front panel 103 are connected to the second side of the rectangular structure.

[0044] The rectangular structure is provided with a first heating space 7, a test module accommodating space 8 and a second heating space 9 arranged from top to bottom. The test module accommodating space 8 is provided with two fixing plates 105, and the rectangular grooves 6 of the two fixing plates 105 are symmetrically arranged, so that the two sides of the test module 2 can be slidably connected to the rectangular grooves of the two fixing plates 105 respectively.

[0045] The test board 3 is equipped with a test system, which includes a CPCI interface 306, a power supply module 307, a voltage regulator circuit 308, a reference circuit 303, a control module 302, a test component socket 301, a conditioning module 304, and a functional test port 305.

[0046] The power module 307 provides power support for all components.

[0047] The locking device 204 is a locking sleeve, which enables the vibrator 5 to be effectively fixed on the mounting plate 203 and also enables the vibrator 5 to perform its due function.

[0048] The control module 302 is connected to the tested component, the heating plate 4, and the vibrator to perform sampling and environmental compensation, and the control module 302 is connected to the host computer.

[0049] like Figures 1-2 The test chamber 1 shown has a removable cover plate 101 on the upper part, and its bottom plate 104 is also removable and placed at the bottom of the chamber. The front of the test chamber 1 includes two front side panels 102, one at the top and one at the bottom. There is a front panel 103 in the middle of the front side panel 102. The front panel has a rectangular hole, through which the test wiring harness passes to connect to the test board 3 for testing. The verification chamber 1 has a removable side panel 107 on each side and a handle 106 for handling. There is a fixing plate 105 at the top and one at the bottom of the middle of the verification chamber 1. The test module 2 can slide into the rectangular groove of the fixing plate 105, which supports and fixes the test module 2. The verification chamber 1 has a frame 108 at the rear. This frame 108 is divided into three hollow areas (top, middle, and bottom) to facilitate the placement of the test board 3 and the heating plate 4.

[0050] like Figures 3-4 The test module 2 shown has a detachable cooling plate 201 on its upper part, which serves to exchange the temperature between the test board 3 and the test chamber 1, allowing the environmental conditions provided during the test to be better applied to the device under test. In the middle of the test module are the test board 3 and the test board clamp 202. The test board clamp 202 fixes the test board 3 in the middle of the clamp. The horn-shaped opening of the test board clamp 202 can be locked into the frame 108 of the verification chamber 1. With the three-way support of the fixing plate 105 and the frame 108, the test board 3 cannot undergo relative displacement inside the verification chamber. At the bottom of the test module 2 is a mounting plate 203. Vibrators 5 are mounted on both sides of the mounting plate 203, and the vibrators 5 are fixed to the mounting plate 203 by a locking device.

[0051] like Figure 5 As shown, the heating plate 4 can be placed on the cover plate 101 or the base plate 104 of the verification chassis. The heating element 404 is located at the center of the heating plate. A positive electrode plate 405 is located on the front of the heating plate 4, and a negative electrode plate 401 is located on its back. The edge of the positive electrode plate 405 has a positive terminal 403, and the edge of the negative electrode plate 401 has a negative terminal 402. The heating plate 4 adjusts its heating intensity according to the temperature control signal output by the control module 302, thereby compensating for the temperature.

[0052] like Figure 6As shown, the vibrator 5 is positioned on both sides of the mounting plate 203 of the test board 3. The outermost part of the vibrator 5 is the vibrator housing 501, and inside the vibrator housing is the vibration motor stator 502. The vibration motor stator 502 includes an eccentric block 503 and a vibration motor rotor 504, which are rigidly connected on their shafts. The vibrator 5 controls the speed of the motor through the motor frequency conversion control signal output by the control module 302, thereby compensating for vibration.

[0053] like Figure 7 The test system shown includes a CPCI interface, a power supply module, a voltage regulator circuit, a reference circuit, a control module, a test component socket, a conditioning module, and a functional test port. The layout of the component comprehensive performance test system on test board 3 is as follows: the test component socket 301 is located in the center of test board 3; the control module 302 surrounds the test component socket 301; the reference circuit 303 is located to the lower right of the control module 302; to the right of the control module 302 and the reference circuit 303 is the conditioning module 304; and to the right of the conditioning module 304 are the functional test port 305 and the CPCI interface 306. At the top of test board 3 is the power supply module 307, and a voltage regulator circuit 308 is located between the power supply module 307 and the control module 301.

[0054] like Figures 8-10As shown, because the test board 3 needs to adapt to multiple scenarios and portability requirements, the size and specifications of the test board 3 are subject to strict requirements. Furthermore, because it is difficult to find suitable DC power supply equipment for support in field testing scenarios, this utility model provides a miniaturized and highly adaptable power module circuit design to address these practical application pain points. The power module 307 input can be connected to one of the two-wire power frequency lines or the center tap of a three-wire power supply, which enters the AC input circuit 30701. After rectification, it directly supplies power to the BUCK circuit 30702, and after preliminary voltage regulation, it powers the triangular wave generator 30705 and the PWM generator 30704. The triangular wave generator 30705 uses the hysteresis circuit principle to compare the voltage threshold set by the resistor voltage divider with the floating voltage value formed by capacitor charging and discharging, generating a triangular wave output that repeatedly rises and falls within a fixed range. The triangular wave output by the triangular wave generator 30705, together with the output voltage collected by the feedback circuit 30703, is input to the PWM generator 30704 for comparison, forming a modulated voltage signal with unequal pulse widths. The modulated voltage signal output from the PWM generator 30704 is input to the BUCK circuit 30702 to control the MOSFET and thus the output current of the BUCK circuit. The feedback circuit 30703 then collects the output voltage and feeds it back to the PWM generator 30704, thereby adjusting the on / off time of the MOSFET in the BUCK circuit 30702 to form a closed loop for current regulation, achieving controllable and stable power supply. This circuit is characterized by using a small number of discrete components to achieve AC-DC conversion and a stable power supply with feedback, within a relatively small board space, and with stable and reliable operation.

[0055] The conditioning circuit 304 amplifies weak signals from the sensor and filters them to reduce interference from spatial and power supply noise, thereby improving measurement accuracy and sensitivity. The input stage of the conditioning circuit 304 consists of two filter circuits: a low-frequency filter circuit and a high-frequency filter circuit. This arrangement can adapt to the signal acquisition needs of different scenarios, improving signal accuracy during application. The two filters, low-frequency filter circuit 30401 and high-frequency filter circuit 30402, are connected to the signal amplification circuit 30403 via a selection switch. This amplification circuit allows the amplification factor to be selected by switching the MOSFET on and off, thus adapting to the detection range requirements of different testing equipment.

[0056] The control module 302 is responsible for providing control commands and transmitting / receiving test data to the component under test (DUT), sampling vibration and temperature signals, and controlling the heating plate 4 and vibrator 5 to compensate for the environment inside the verification chassis 1. The control module 302 connects to the host computer via an interface to obtain environmental and test condition values, and connects to the component socket 301 via a control command set data exchange interface to provide control commands and exchange test data with the DUT. The control commands and test data of the control module can be stored in memory to achieve independence from host computer control and prevent test data loss.

[0057] The operating procedure of this device is as follows: First, install the component under test into the component socket. If the component under test is a programmable integrated circuit, the predetermined test program should be programmed into the component before testing. Then, install the test board onto the test board holder in the test module, and secure the cooling plate and mounting plate with bolts to prevent relative displacement of the test board within the test module. Finally, insert the test module from one side of the test housing frame into the slot inside the housing, with the test board's wiring harness passing through the corresponding rectangular hole on the front panel. After completing the above operations, check the reliability of the connections. Then, place it in the test environment and connect the test board's wiring harness to the corresponding test equipment, power supply equipment, and signal equipment, etc., according to the test outline for verification.

[0058] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A portable electronic component testing device, characterized in that: It includes a test chamber, test modules, test boards, heating plates, and vibrators; The test module and heating plate are both located inside the test chamber, the test board is located inside the test module, and vibrators are respectively provided on both sides of the test board; The test module includes a cooling plate, a test board clamp, a mounting plate, and a locking device. The cooling plate is fixedly connected to the first side of the test board clamp, and the mounting plate is fixedly connected to the second side of the test board clamp. Locking devices are provided on both sides of the mounting plate. The test board is mounted on the test board fixture, and the test board is positioned between the cooling plate and the test board fixture. The heating plate is disposed within the heating space of the test module. The heating plate is provided with a mounting plate, a negative electrode plate, a negative electrode terminal, a heating element, a positive electrode plate, and a positive electrode terminal. The negative electrode plate, the positive electrode plate, and the heating element are all disposed on the mounting plate. The positive electrode plate and the negative electrode plate are disposed opposite each other on both sides of the heating element. The negative electrode terminal is disposed on the surface of the mounting plate on the side where the negative electrode plate is located, and the positive electrode terminal is disposed on the surface of the mounting plate on the side where the positive electrode plate is located. The vibrator includes a vibrator housing and a vibrating motor stator. The two ends of the vibrating motor stator are fixedly connected to the ends of the two vibrator housings, respectively. An eccentric block and a vibrating motor rotor are provided inside the vibrating motor stator. The two ends of the vibrating motor rotor are connected to the first ends of the two eccentric blocks, respectively. The second ends of the eccentric blocks are connected to the inner wall of the vibrating motor stator.

2. The portable electronic component testing device according to claim 1, characterized in that: The test chamber includes a cover plate, side plates, a bottom plate, a front baffle, a front panel, a frame, and a fixing plate. The two ends of the cover plate are connected to the first ends of the two side plates, and the two ends of the bottom plate are connected to the second ends of the two side plates. The cover plate and the bottom plate are perpendicular to the side plates. The cover plate, side plates, and bottom plate form a rectangular structure. The fixing plate is disposed within the rectangular structure. The frame is connected to the first side of the rectangular structure. The front baffle and the front panel are connected to the second side of the rectangular structure.

3. The portable electronic component testing device according to claim 2, characterized in that: The rectangular structure includes a first heating space, a test module housing space, and a second heating space.

4. The portable electronic component testing device according to claim 3, characterized in that: The test module contains two fixed plates, and the rectangular grooves of the two fixed plates are symmetrically arranged, so that the two sides of the test module can be slidably connected to the rectangular grooves of the two fixed plates respectively.

5. The portable electronic component testing device according to claim 1, characterized in that: The test board is equipped with a test system.

6. The portable electronic component testing device according to claim 5, characterized in that: The test system includes a CPCI interface, a power module, a voltage regulator circuit, a reference circuit, a control module, a test component socket, a conditioning module, and a functional test port.

7. The portable electronic component testing device according to claim 6, characterized in that: The power module provides power to all components.

8. The portable electronic component testing device according to claim 6, characterized in that: The control module is connected to the tested component, heating plate, vibrator, and host computer, and the output terminal of the control module is connected to the host computer.

9. The portable electronic component testing device according to claim 1, characterized in that: The locking device is a locking sleeve.

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