Simple device for testing resistor

Abstract

The utility model belongs to the technical field of resistance testing equipment, in particular to a simple device for testing resistance, which is characterized in that a main body frame comprises an upper plate connected with a rear plate, the bottom surface of the upper plate is connected with a support rod, the upper plate covers right above a right plate, a front plate and a left plate, and a PCB (Printed Circuit Board) provides a fixed platform; the rear plate is fixed below the upper plate and on the back surfaces of the right plate and the left plate; the front plate is fixed below the upper plate and on the front surfaces of the right plate and the left plate; the lower plate is fixed under the rear plate, the right plate, the front plate and the left plate; the testing assembly comprises a testing jig and a mobile phone camera module fixing mold cavity, the mobile phone camera module fixing mold cavity is fixed on the PCB, and a probe on the testing jig needs to be aligned with a copper foil on the PCB before fixing; according to the device, probe type contact is eliminated, and a line direct connection mode is adopted, so that the conditions that the vibrating needle and the circuit board are easily abraded due to up-down movement of the contacted vibrating needle, electrostatic ions are easily generated due to back-and-forth contact friction between the vibrating needle and the circuit board, and the vibrating needle is light and thin in material and is easily damaged can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of resistance testing equipment, in particular to a simple device for testing resistance. Background Art

[0002] With the advancement of technology, the mobile phone camera module manufacturing industry has relatively higher requirements for the effect of mobile phone photography. Therefore, as a camera module manufacturer, after the mobile phone camera module is assembled, various performance tests will be carried out, including different voltage environments, different current environments, etc. The utility model is used in the test of module resistance. If there is a problem in connecting the module protection cover and the 3C product connector, the module may be interfered by noise or other electrical signals, thereby affecting the module function; in order to ensure the status of the module protection cover and the 3C product, its resistance value needs to be measured during the test. In daily life, people use mobile phones to take pictures more and more frequently, and have higher and higher requirements for the photos taken. The mobile phone camera module has an autofocus function. The clarity of the photo depends on the current supplied to the camera module by our mobile phone. If our camera module itself has a large resistance value and the voltage is constant, the current brought to the module will be smaller, the mobile phone autofocus photography function will be abnormal, and the photo effect will be worse.

[0003] However, resistance testing has its drawbacks: the up-and-down motion of the contact pin can easily cause wear on the pin and circuit board, generating dust ions. During device operation, vibrations can stir up these dust ions, causing them to float within the device. This can contaminate the camera lens surface, affecting test results.

[0004] The friction between the spring pin and the circuit board easily generates static ions, which easily attract nearby dust ions, resulting in unstable test data. It requires a dedicated person to clean and maintain it daily, which is time-consuming and labor-intensive.

[0005] The material of the spring needle is relatively light and thin and easily damaged; therefore, a simple device for testing resistance is proposed to address the above problem. Utility Model Content

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background art, the present invention provides a simple device for testing resistance.

[0007] The technical solution adopted by the present invention to solve the technical problem is as follows: a simple device for testing resistance described in the present invention includes a main frame and a test assembly, wherein the main frame includes:

[0008] The upper plate is connected to the rear plate, and the bottom of the upper plate is connected to the support rod. It covers the right plate, front plate, and left plate, and the PCB board provides a fixed platform;

[0009] The rear plate is fixed to the bottom of the upper plate and the back of the right plate and the left plate;

[0010] The front plate is fixed to the bottom of the upper plate and the front of the right plate and the left plate;

[0011] The lower plate is fixed directly below the rear plate, right plate, front plate, and left plate;

[0012] The test components include:

[0013] The test fixture, the mobile phone camera module fixed mold cavity, is fixed on the PCB board. Before fixing, the probe on the test fixture must be aligned with the copper foil on the PCB board to prevent poor contact and affect the test results;

[0014] PCB board transmits signals and power through the wires and conductive patterns on the PCB board, realizes the connection and signal transmission between components, is responsible for connecting the test fixture, and is fixed to the upper board;

[0015] As a preferred solution, the test component also includes a tester, which is placed as a whole inside the main frame and is responsible for connecting to the storage medium and the computer.

[0016] As a preferred solution, the test component also includes a storage medium, which is responsible for connecting the tester and the PCB board, connecting to the computer in the form of a transmission line, and fixed inside the main frame.

[0017] As a preferred solution, the right plate is fixed below the upper plate and to the left of the rear plate and the front plate, and is connected to the handshake.

[0018] As a preferred solution, the left plate is fixed below the upper plate and to the right of the rear plate and the front plate, and is connected to the handshake.

[0019] As a preferred solution, the handshake is fixed on the right plate.

[0020] As a preferred solution, the handshake is fixed on the left plate.

[0021] As a preferred solution, the support rod is fixed below the upper plate and above the lower plate, with one installed on each side, and is used to support the upper plate when it is opened.

[0022] As a preferred solution, the main frame further includes foot pads symmetrically arranged at the bottom of the lower plate, and the foot pads are fixed at the four corners of the lower plate.

[0023] As a preferred solution, the main frame further includes a hinge, and the upper plate is hinged to the rear plate via the hinge.

[0024] The utility model is beneficial in that:

[0025] 1. The utility model places the module into the mobile phone camera module, closes the test fixture, and performs the test. The module is transferred through the storage medium and connected to the computer through the transmission line. The transmission line includes a USB line and RS232 to realize the mutual connection between the test software and the hardware. The test software sends the test instructions via the USB line, and the tester starts working. After the test is completed, the data is returned to the computer through the RS232 line. The software receives the data and analyzes it. After the test is completed, the test fixture is opened, the module is taken out, and the test fixture is closed to complete the test. Since the device cancels the probe-type contact and adopts a direct connection method of the line, it can avoid the wear of the spring needle and the circuit board due to the up and down movement of the contact spring needle, the static ions easily generated by the friction between the spring needle and the circuit board, and the light and thin material of the spring needle, which is easy to be damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 This is a front structural diagram of the present invention;

[0028] Figure 2 This is a rear view structural diagram of the utility model;

[0029] Figure 3 This is a schematic diagram of the bottom-up structure of the present invention;

[0030] Figure 4 This is a resistance test flow chart of the present utility model.

[0031] In the figure: 100, test fixture; 200, PCB board; 301, upper board; 302, rear board; 303, right board; 304, lower board; 305, front board; 306, left board; 400, support rod; 500, tester; 600, foot pad; 700, storage medium; 800, handshake; 900, hinge. DETAILED DESCRIPTION

[0032] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] Specific examples are given below.

[0034] See also Figure 1-4 As shown, a simple device for testing resistance includes a main frame and a test component, wherein the main frame includes:

[0035] The upper plate 301 is connected to the rear plate 302. The bottom surface of the upper plate 301 is connected to the support rod 400. It covers the right plate 303, the front plate 305, and the left plate 306. The PCB board 200 provides a fixed platform.

[0036] The rear plate 302 is fixed to the bottom of the upper plate 301 and the back of the right plate 303 and the left plate 306;

[0037] The front plate 305 is fixed to the bottom of the upper plate 301 and the front of the right plate 303 and the left plate 306;

[0038] The lower plate 304 is fixed directly below the rear plate 302, the right plate 303, the front plate 305, and the left plate 306; the test assembly includes:

[0039] The test fixture 100, the mobile phone camera module fixed mold cavity, is fixed on the PCB board 200. Before fixing, the probe on the test fixture 100 needs to be aligned with the copper foil on the PCB board 200;

[0040] PCB board 200 transmits signals and power through the wires and conductive patterns on the PCB board 200, realizes the connection and signal transmission between the components, is responsible for connecting the test fixture 100, and is fixed to the upper board 301;

[0041] During operation, before placing the module in front of the mobile phone camera module, first open the test fixture 100, place the module in the mobile phone camera module, close the test fixture 100, and conduct the test. Transfer through the storage medium 700 and connect to the computer with the transmission line. The transmission line includes a USB line and RS232 to realize the interconnection between the test software and the hardware. The test software sends the test instructions via the USB line, and the tester 500 starts working. After the test is completed, the data is returned to the computer through the RS232 line. The data is received by the software for analysis. The tester 500 is a prior art and will not be described in detail in this article. After the test is completed, open the test fixture 100, take out the module, and close the test fixture 100 to complete the test.

[0042] The test assembly also includes a tester 500, which is placed inside the main frame and is responsible for connecting to the storage medium 700 and the computer. The test assembly also includes a storage medium 700, which is responsible for connecting the tester 500 and the PCB board 200, connected to the computer in the form of a transmission line, and fixed inside the main frame;

[0043] During operation, the device can directly connect the mobile phone camera module to the test resistance using a transmission line. Since the probe in the prior art is eliminated, the following technical problems can be avoided: First, the up and down movement of the contacting spring needle can easily cause wear of the spring needle and the circuit board, generating dust ions. During the operation of the device, the vibration of the device will drive the dust ions and float them in the internal space of the device, which will cause pollution to the lens surface of the camera module and affect the test effect; second, the back-and-forth contact and friction between the spring needle and the circuit board can easily generate electrostatic ions, which can easily absorb nearby dust ions, resulting in unstable test data. It is necessary to arrange special personnel for daily cleaning and maintenance, which is time-consuming and labor-intensive; third, the material of the spring needle is relatively light and thin and easily damaged.

[0044] Further, such as Figure 1 and Figure 2 As shown, the right plate 303 is fixed below the upper plate 301 and to the left of the rear plate 302 and the front plate 305, and is connected to the handshake 800;

[0045] When working, the right plate 303 is fixed below the upper plate 301 and to the left of the rear plate 302 and the front plate 305. This layout forms a stable frame, enhances the stability of the overall structure, helps to resist the influence of external forces such as vibration on the structure, and maintains its stability for long-term use.

[0046] Further, such as Figure 1 and Figure 2 As shown, the left plate 306 is fixed to the bottom of the upper plate 301 and to the right of the rear plate 302 and the front plate 305, and is connected to the handshake 800, the handshake 800 is fixed to the right plate 303, and the handshake 800 is fixed to the left plate 306;

[0047] When working, the left plate 306 and the right plate 303 can form a symmetrical structure. This symmetry helps to enhance the stability of the overall structure. Fixed below the upper plate 301 and to the right of the rear plate 302 and the front plate 305, it can ensure that the left plate 306 has stable support in multiple directions, further improving the stability of the structure.

[0048] Further, such as Figure 1 and Figure 2 As shown, the support rod 400 is fixed below the upper plate 301 and above the lower plate 304, with one installed on each side. When the upper plate 301 is opened, it is used to support it;

[0049] When working, the support rod 400 is fixed below the upper plate 301 and above the lower plate 304, with one installed on each side. This layout provides a stable support for the upper plate 301. When the upper plate 301 is opened, the support rod 400 can effectively prevent it from shaking or tilting, thereby enhancing the stability of the overall structure.

[0050] Further, such as Figure 1 and Figure 2 As shown, the main frame further includes foot pads 600 symmetrically arranged at the bottom of the lower plate 304 , the foot pads 600 are fixed to hinges 900 at the four corners of the lower plate 304 , and the upper plate 301 is hinged to the rear plate 302 through the hinges 900 ;

[0051] When working, the foot pads 600 are fixed to the four corners of the lower plate 304, providing a solid support for the entire main frame, helping to evenly distribute the weight, preventing the structure from tilting or shaking, thereby enhancing the overall stability, and preventing sliding and wear.

[0052] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0053] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A simple device for testing resistance, comprising a main frame and a test assembly, characterized in that: The main framework includes: The upper plate (301) is connected to the rear plate (302), and the bottom surface of the upper plate (301) is connected to the support rod (400). The upper plate (301) covers the right plate (303), the front plate (305), and the left plate (306). The PCB board (200) provides a fixed platform. The rear plate (302) is fixed below the upper plate (301) and on the back of the right plate (303) and the left plate (306); The front plate (305) is fixed below the upper plate (301) and on the front of the right plate (303) and the left plate (306); The lower plate (304) is fixed directly below the rear plate (302), the right plate (303), the front plate (305), and the left plate (306); The test components include: The test fixture (100) and the mobile phone camera module fixing mold cavity are fixed on the PCB board (200), and before fixing, the probe on the test fixture (100) and the copper foil on the PCB board need to be aligned; The PCB board (200) transmits signals and power through the wires and conductive patterns on the PCB board (200), realizes the connection between components and signal transmission, is responsible for connecting the test fixture (100), and is fixed to the upper board (301).

2. The simple device for testing resistance according to claim 1, characterized in that: The test assembly further comprises a tester (500), which is entirely placed inside the main frame and is responsible for connecting the storage medium (700) and the computer.

3. The simple device for testing resistance according to claim 2, characterized in that: The test assembly also includes a storage medium (700), which is responsible for connecting the tester (500) and the PCB board (200), connected to the computer in the form of a transmission line, and fixed inside the main frame.

4. The simple device for testing resistance according to claim 1, characterized in that: The right plate (303) is fixed below the upper plate (301) and to the left of the rear plate (302) and the front plate (305), and is connected to the handshake (800).

5. The simple device for testing resistance according to claim 1, characterized in that: The left plate (306) is fixed below the upper plate (301) and to the right of the rear plate (302) and the front plate (305), and is connected with a handshake (800).

6. A simple device for testing resistance according to claim 5, characterized in that: The handshake (800) is fixed on the right plate (303).

7. A simple device for testing resistance according to claim 6, characterized in that: The handshake (800) is fixed on the left plate (306).

8. The simple device for testing resistance according to claim 1, characterized in that: The main frame further comprises support rods (400), which are fixed below the upper plate (301) and above the lower plate (304), with one support rod (400) installed on each side, and are used to support the upper plate (301) when it is opened.

9. The simple device for testing resistance according to claim 1, characterized in that: The main frame further includes foot pads (600) symmetrically arranged at the bottom of the lower plate (304), and the foot pads (600) are fixed at the four corners of the lower plate (304).

10. The simple device for testing resistance according to claim 1, characterized in that: The main frame further comprises a hinge (900), and the upper plate (301) is hingedly connected to the rear plate (302) via the hinge (900).

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