Shielding test box

Abstract

The utility model discloses a shielding test box, comprising a box body in which a shielding cavity with an opening is formed; the conveying assembly comprises a first driver and a conveying seat; the conveying seat is movably arranged in the shielding cavity, a positioning jig used for assembling a plurality of products to be tested is arranged on the conveying seat, and the first driver is in driving connection with the conveying seat; the testing assembly comprises a lifting seat, a testing plate and a second driver, the testing plate is arranged on the lifting seat, a plurality of testing needles which can be inserted into the connecting ports of the to-be-tested products respectively are arranged on the bottom surface of the testing plate, the lifting seat is arranged in the shielding cavity in a lifting and moving mode, and the second driver is in driving connection with the testing plate. According to the shielding test box provided by the embodiment of the utility model, the whole test process almost does not need manual control, the detection of a large batch of to-be-tested products can be rapidly completed, and the technical problem that the test efficiency is low due to the fact that the working labor intensity of workers is relatively high is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of electronic equipment testing, and in particular to a shielded test box. Background Technology

[0002] A shielded test chamber can simulate a closed space, reducing the impact of external electromagnetic interference on test results. Therefore, placing each product under test inside the shielded test chamber reduces excessive interference from external electromagnetic interference, ensuring the accuracy and stability of test results.

[0003] Currently, the connection between the test probe and the circuit board of the product under test is made manually. When a large number of products need to be tested, the labor intensity of the workers is high, which can easily lead to fatigue and affect the testing efficiency. Utility Model Content

[0004] To overcome the shortcomings of existing technical solutions, this utility model provides a shielded test box.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A shielding test chamber, the shielding test chamber comprising:

[0007] The enclosure has an opening forming a shielding cavity;

[0008] A conveying assembly includes a first driver and a conveying seat; the conveying seat is movably disposed in the shielding cavity, and a positioning fixture for assembling multiple products to be tested is provided on the conveying seat; the first driver is drivenly connected to the conveying seat.

[0009] The test assembly includes a lifting base, a test plate, and a second driver. The test plate is disposed on the lifting base, and the bottom surface of the test plate is provided with a plurality of test probes that can be respectively inserted into the connection ports of each product under test. The lifting base is moved up and down within the shielding cavity, and the second driver is driven to connect to the test plate.

[0010] As a preferred technical solution of this utility model, the top surface of the positioning fixture is provided with a plurality of positioning grooves, and each of the products to be tested is respectively assembled in each of the positioning grooves.

[0011] As a preferred technical solution of this utility model, the top surface of the positioning fixture is provided with a plurality of positioning posts.

[0012] As a preferred technical solution of this utility model, the first driver includes a cylinder, a guide rail, and a moving part; the guide rail is disposed on the side wall or bottom surface of the shielding cavity, the moving part is disposed on the side or bottom surface of the conveying seat, the moving part is movably disposed on the guide rail, and the output shaft of the cylinder is connected to the conveying seat.

[0013] As a preferred technical solution of this utility model, the cavity wall of the shielding cavity is provided with a limiting part for limiting the lifting distance of the lifting seat.

[0014] As a preferred technical solution of this utility model, the second driver includes a motor, a lifting part and a plurality of guide rods; one end of each guide rod is connected to a limiting part, the lifting part is disposed on the lifting seat, the lifting part is slidably sleeved on the outer side wall of the guide rod, and the output shaft of the motor is connected to one of the guide rods.

[0015] As a preferred technical solution of this utility model, the guide rod connected to the output shaft of the motor is a lead screw; the lifting part sleeved on the outside of the lead screw has a threaded hole that mates with the outside of the lead screw.

[0016] As a preferred technical solution of this utility model, the lifting seat has a through-hole for avoiding each test needle.

[0017] As a preferred technical solution of this utility model, the outer side of the housing is provided with multiple power supply interfaces, and each power supply interface is electrically connected to the first driver and the second driver respectively.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] When multiple products to be tested are placed on the positioning fixture, the first driver pulls the conveyor seat to move into the shielded cavity, so that the positioning fixture is conveyed into the shielded cavity. The second driver pushes the lifting seat to move downward until the lifting seat moves downward until each test needle can be inserted into the connection port of each product to be tested. At this time, multiple products to be tested can be tested. The entire testing process is almost entirely automated and can quickly complete the testing of a large number of products to be tested. This solves the technical problem of high labor intensity for workers, which leads to low testing efficiency. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is an overall structural diagram of an embodiment of the present utility model.

[0022] Figure 2 yes Figure 1 The main view.

[0023] Figure 3 yes Figure 1 Rear view.

[0024] Numbers in the diagram

[0025] 1. Enclosure; 11. Shielding cavity; 12. Limiting part; 13. Power supply interface;

[0026] 2. Conveying assembly; 21. Conveying base; 22. Positioning fixture;

[0027] 3. Test components; 31. Lifting seat; 311. Lifting part; 32. Test plate; 33. Guide rod. Detailed Implementation

[0028] To make the technical problems, technical solutions and beneficial effects to be solved by this application clearer, the following describes this application in further detail with reference to the accompanying drawings and embodiments.

[0029] It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0030] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on the other component or indirectly on that other component.

[0031] When a component is said to be "connected to" another component, it can be directly connected to the other component or indirectly connected to that other component.

[0032] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0034] In the description of this application, "multiple" means two or more, unless otherwise expressly and specifically defined.

[0035] To address the technical problem of low testing efficiency due to the high labor intensity of workers when testing large quantities of products, this utility model provides a shielded testing box.

[0036] It is understood that the product under test in this embodiment of the present invention is a circuit board of a mobile electronic device, such as a circuit board of an electronic bracelet or an electronic watch, and the specific type is not limited here.

[0037] The following describes in detail the specific structure of a shielded test box provided by an embodiment of this utility model, according to the appendix. Figure 1-3 As shown, the specific structure of the shielding test box includes a box body 1, a conveying assembly 2, and a test assembly 3.

[0038] The housing 1 has an opening forming a shielding cavity 11.

[0039] Specifically, the enclosure 1 is a closed enclosure constructed of conductive materials (such as metal), utilizing the high conductivity of metal to prevent electromagnetic waves from being transmitted to the electronic equipment located inside the shielding cavity 11. When electromagnetic waves encounter the shielding cavity 11, most of the electromagnetic wave energy is reflected and dissipated on the shielding layer, thereby achieving the purpose of preventing electromagnetic interference from entering the interior of the test chamber.

[0040] It should be noted that the opening formed inside the housing 1 is connected to the shielding cavity 11. When multiple products to be tested are conveyed to the positioning fixture 22 on the conveyor seat 21 through the clamp, the conveyor seat 21 can be pushed to the inner wall of the shielding cavity 11 through the opening, and then the testing component 3 completes the testing process for each product to be tested.

[0041] According to the appendix Figure 1 As shown, the conveying assembly 2 includes a first driver and a conveying seat 21; the conveying seat 21 is movably disposed on the bottom surface of the shielding cavity 11, and the conveying seat 21 is provided with a positioning fixture 22 for assembling each product to be tested, and the first driver is drivenly connected to the conveying seat 21.

[0042] Specifically, in order to stably transport each product under test placed on the positioning fixture 22 directly below the test plate 32, after each product under test is placed on the positioning fixture 22, the first driver pulls the entire conveyor seat 21 along the internal direction of the shielding cavity 11 until the entire positioning fixture 22 is located inside the shielding cavity 11. At this time, multiple test probes are aligned with multiple products under test. Subsequently, after the relevant testing procedures are completed for each product under test, the first driver pushes the entire conveyor seat 21 along the opening direction, that is, pushes the conveyor seat 21 along the direction away from the shielding cavity 11, until the conveyor seat 21 moves until the positioning fixture 22 is outside the shielding cavity 11. At this time, the products under test that have completed the testing procedures can be removed by the clamp.

[0043] By repeatedly executing the above embodiments, that is, after a portion of multiple untested products to be tested are all transported to the positioning fixture 22 on the conveyor seat 21 by the clamp, the first driver drives the conveyor seat 21 to move so that each product to be tested located on the positioning fixture 22 is transported into the interior of the shielding cavity 11. Then, the products to be tested after completing the testing process are pushed out of the shielding cavity 11. Then, another portion of multiple untested products to be tested are transported to the positioning fixture 22 on the conveyor seat 21 by the clamp. This process is repeated. The whole process does not require manual operation to connect the test probe to the circuit board of the product to be tested, which further improves the efficiency of testing a large number of products to be tested.

[0044] according to Figure 1 As shown, the test assembly 3 includes a lifting base 31, a test plate 32, and a second driver. The test plate 32 is disposed on the lifting base 31, and the bottom surface of the test plate 32 is provided with a test needle for insertion into the connection end of the product under test. The lifting base 31 is moved up and down within the shielding cavity 11, and the second driver is driven to connect with the test plate 32.

[0045] Specifically, when multiple products under test located on the positioning fixture 22 are transported into the shielding cavity 11, each product under test is positioned opposite a single test probe. The second driver is used to push the lifting seat 31 to move downward until the lifting seat 31 moves downward until each test probe can be inserted into the connection port of each product under test. At this point, the multiple products under test can be tested. After the test process of each product under test is completed by each test probe, the second driver is used to pull the entire lifting seat 31 upward until each test probe is simultaneously separated from each product under test. Then, the lifting seat 31 is pulled upward to a certain distance. At this point, the first driver can be used to drive the conveyor seat 21 to move in the direction away from the shielding cavity 11 so that the products under test that have completed the test process can be transported out of the shielding cavity 11.

[0046] Therefore, the entire testing process requires almost no manual operation and can quickly complete the testing of a large number of products. This solves the technical problem that the high labor intensity of workers leads to fatigue and affects testing efficiency.

[0047] In some specific embodiments, the top surface of the positioning fixture 22 is recessed with multiple positioning grooves, and each product to be tested is assembled in each positioning groove.

[0048] Specifically, the positioning fixture 22 of this utility model embodiment can be used to assemble multiple products to be tested. When the products are transported to the positioning fixture 22 on the conveyor seat 21 by the clamp, each product to be tested is placed in its respective positioning slot. Specifically, each product to be tested is placed into its corresponding positioning slot at the same time. Since the shape and size of the positioning slot and the product to be tested match, the product to be tested can be accurately positioned in the predetermined position.

[0049] It should be noted that, according to the shape, size and assembly requirements of the product under test, multiple positioning slots are set on the top surface of the positioning fixture 22. Through these positioning slots, the shape of the product under test can be accurately adapted, thereby achieving accurate placement and positioning of the product under test and preventing the product under test from shaking or shifting during the testing process.

[0050] In a further embodiment, the top surface of the positioning fixture 22 is provided with a plurality of positioning posts.

[0051] Specifically, since the multiple positioning posts on the positioning fixture 22 are designed to stabilize the shape of the product under test, it ensures that the product under test can be accurately embedded and fixed on the positioning fixture 22. More specifically, when each product under test is placed in its respective positioning slot, since the product under test has positioning holes, the multiple positioning posts on the positioning fixture 22 are respectively inserted into the positioning holes of each product under test, so that the product under test can be more securely assembled in the positioning slot. This achieves precise positioning of the product under test, ensures the accurate position of the product under test on the fixture, and further improves the stability of each product under test.

[0052] It is understood that the positioning groove of this utility model embodiment is provided with multiple positioning posts on its periphery. This arrangement is used to provide multiple supports so that the product under test can be stably fixed in the positioning groove of the positioning fixture 22, which helps to reduce vibration and displacement caused by single-point contact, thereby improving the stability during testing or processing.

[0053] In some specific embodiments, the first driver includes a cylinder, a guide rail, and a moving part; the guide rail is disposed on the side wall or bottom surface of the shielded cavity 11, the moving part is disposed on the side or bottom surface of the conveyor seat 21, the moving part is movably disposed on the guide rail, and the output shaft of the cylinder is connected to the conveyor seat 21.

[0054] Specifically, in order to transport the positioning fixture 22 into the shielding cavity 11, the output shaft of the cylinder is used to pull the conveyor seat 21 along the direction of the shielding cavity 11. During the pulling of the conveyor seat 21, a moving part provided on the side wall or bottom surface of the conveyor seat 21 moves on the guide rail. The guide rail guides the movement trajectory of the moving part, ensuring that it moves along a predetermined path. This allows the conveyor seat 21 to slide or move along the guide rail into the shielding cavity 11, thereby driving the positioning fixture 22 located on the conveyor seat 21 to be transported into the shielding cavity 11, until each product to be tested located on the positioning fixture 22 is transported to its respective... The test needles are positioned directly below each test needle. After the testing process of each product is completed, the output shaft of the cylinder is used to push the conveyor seat 21 to move along the opening (away from the shielding cavity 11). During the process of pushing the conveyor seat 21, the moving part set on the side wall or bottom of the conveyor seat 21 moves on the guide rail, so that the conveyor seat 21 moves along the guide rail to the outside of the shielding cavity 11, thereby driving the positioning fixture 22 located on the conveyor seat 21 to be conveyed to the outside of the shielding cavity 11. With this configuration, each product to be tested can be efficiently conveyed to the inside or outside of the shielding cavity 11, thereby achieving the effect of automated production, transfer or positioning.

[0055] It is understood that the conveying shaft of the cylinder in this embodiment of the present invention is a piston, and the linear motion of pushing and pulling can be achieved by controlling the gas flow rate, thereby pushing or pulling the conveying seat 21 to move.

[0056] according to Figure 2 As shown, in some specific embodiments, the cavity wall of the shielding cavity 11 is provided with a limiting part 12 for limiting the lifting distance of the lifting seat 31.

[0057] Specifically, the limiting part 12 serves a limiting function, that is, to prevent the lifting seat 31 from descending and moving beyond a predetermined distance. Specifically, when the lifting seat 31 reaches the limit position of the limiting part 12, the limiting part 12 abuts against the bottom surface of the lifting seat 31, which can prevent the lifting seat 31 from continuing to descend and ensure that the lifting seat 31 cannot exceed the descent range.

[0058] It should be noted that when the limiting part 12 abuts against the bottom surface of the lifting seat 31, each test needle can be inserted into the connection port of each product under test. At this time, the lifting seat 31 cannot move further down, thus protecting each product under test.

[0059] according to Figure 1As shown, in some specific embodiments, the second driver includes a motor, a lifting part 311 and a plurality of guide rods 33; one end of the guide rod 33 is connected to the limiting part 12, the lifting part 311 is disposed on the lifting seat 31, the lifting part 311 is slidably sleeved on the outer side wall of the guide rod 33, and the output shaft of the motor is connected to one of the guide rods 33.

[0060] Specifically, in order to lower and move the test plate 32, which is mounted on the lifting base 31, to the point where the test probes are inserted into the connection ports of the product under test, the output shaft of the motor drives the guide rod 33 to rotate circumferentially. At this time, the lifting part 311, sleeved on the outside of the guide rod 33, can move downwards along the axial direction of the guide rod 33. During this downward movement, the lifting part 311 synchronously drives the entire lifting base 31 to move downwards until the lifting base 31 has moved to the point where the test probes of the test plate 32 are respectively inserted into the connection ports of the product under test. At this point, the product under test can be tested. After the testing process of each product under test is completed, the output shaft of the motor drives the guide rod 33 to rotate in another direction. At this time, the lifting part 311 sleeved on the outside of the guide rod 33 can move upward along the axial direction of the guide rod 33. During the upward movement of the lifting part 311, the entire lifting seat 31 is driven to rise along with it until each test needle is separated from the product under test and the lifting seat 31 has risen a certain distance. This setting ensures that the lifting seat 31 and the test plate 32 can rise or fall stably, so that the test needles are automatically inserted into or removed from the connection port of the product under test.

[0061] In a further embodiment, the guide rod 33 connected to the output shaft of the motor is a lead screw; the lifting part 311 sleeved on the outside of the lead screw has a threaded hole that mates with the outside of the lead screw.

[0062] Specifically, when controlling the lifting seat 31 to rise or fall, if the output shaft of the motor drives the lead screw to rotate clockwise, since the lead screw is a shaft with a helical groove on its outer side, and the threaded hole of the lifting part 311 is a thread that matches the helical groove of the lead screw, the clockwise rotation of the lead screw, through its meshing with the threaded hole of the lifting part 311, can be converted into linear motion to push the lifting part 311, thus driving the lifting part 311 to descend along the axial direction of the lead screw. When the output shaft of the motor drives the lead screw to rotate counterclockwise, it can drive the lifting part 311 to move upward along the axial direction of the lead screw. The specific technical principle is similar to that of the lead screw rotating clockwise, and will not be explained in detail here.

[0063] In some specific embodiments, the lifting seat 31 has a clearance cavity for avoiding each test needle.

[0064] Specifically, the lifting base 31 has a through-hole to ensure that the test needle can pass through the lifting base 31 and face the connection port of the product under test. There is no need to assemble the test plate 32 inside the lifting base 31. This utility model sets the test plate 32 on the top surface of the lifting base 31, and each test needle passes through the lifting base 31 through the through-hole and faces the connection port of the product under test, which facilitates the direct connection of each conductive wire to each connection end of the test plate 32.

[0065] according to Figure 3 As shown, in some specific embodiments, the outer side of the housing 1 is provided with multiple power supply interfaces 13, and each power supply interface 13 is electrically connected to the first driver and the second driver respectively.

[0066] Specifically, by connecting one end of the first power supply line to the power supply terminal and the other end to the power supply interface 13, and by connecting one end of the second power supply line to the power supply interface 13, and connecting the second power supply line to both the first and second drivers, current flows through the positive (+) terminal of the power supply, through the first power supply line, through the power supply interface 13 and the second power supply line to the first and second drivers (cylinders or motors) inside the test chamber, and then flows back to the negative (-) terminal of the power supply through internal wires. The first and second drivers each have specific voltage and current requirements; therefore, the power supply interface 13 can provide sufficient current and voltage to the first and second drivers through the power supply to meet their maximum operating load.

[0067] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model 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 utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A shielded test chamber, characterized in that, The shielding test chamber includes: The enclosure has an opening forming a shielding cavity; A conveying assembly includes a first driver and a conveying seat; the conveying seat is movably disposed in the shielding cavity, and a positioning fixture for assembling multiple products to be tested is provided on the conveying seat; the first driver is driven connected to the conveying seat. The test assembly includes a lifting base, a test plate, and a second driver. The test plate is disposed on the lifting base, and the bottom surface of the test plate is provided with a plurality of test probes that can be respectively inserted into the connection ports of each product under test. The lifting base is moved up and down within the shielding cavity, and the second driver is driven to connect to the test plate.

2. The shielding test box according to claim 1, characterized in that, The top surface of the positioning fixture is recessed with multiple positioning grooves, and each product to be tested is respectively assembled in each of the positioning grooves.

3. The shielding test box according to claim 1, characterized in that, The top surface of the positioning fixture is provided with multiple positioning posts.

4. The shielding test box according to claim 1, characterized in that, The first driver includes a cylinder, a guide rail, and a moving part; the guide rail is disposed on the side wall or bottom surface of the shielding cavity, the moving part is disposed on the side or bottom surface of the conveyor seat, the moving part is movably disposed on the guide rail, and the output shaft of the cylinder is connected to the conveyor seat.

5. The shielding test box according to claim 1, characterized in that, The shielding cavity has a protruding limiting part on its cavity wall to restrict the lifting distance of the lifting seat.

6. The shielding test chamber according to claim 5, characterized in that, The second driver includes a motor, a lifting part, and multiple guide rods; one end of each guide rod is connected to a limiting part, the lifting part is disposed on the lifting seat, the lifting part is slidably sleeved on the outer side wall of the guide rod, and the output shaft of the motor is connected to one of the guide rods.

7. The shielding test box according to claim 6, characterized in that, The guide rod connected to the output shaft of the motor is a lead screw; the lifting part sleeved on the outside of the lead screw has a threaded hole that mates with the outside of the lead screw.

8. The shielding test box according to claim 1, characterized in that, The lifting seat has a through-hole for avoiding the test needles.

9. The shielding test box according to claim 1, characterized in that, The outer side of the enclosure is provided with multiple power supply interfaces, each of which is electrically connected to the first driver and the second driver respectively.

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