PCB reliability comprehensive test device
By designing the box cover and slide rail structure that can be switched between two positions, the problem of inconvenience in adding, removing and taking out circuit boards in the existing technology is solved, and the flexibility and safety of reliability testing are improved.
Patent Information
- Application Number
- CN202421145622.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-23
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-05-23
AI Technical Summary
The existing reliability testing device is not convenient for adding or removing circuit boards or taking out circuit boards for visual inspection during the experiment, which affects the testing efficiency and safety.
A PCB reliability comprehensive testing device is designed, which adopts a box and box lid structure. The box lid and the box are hinged. A first slide rail and a second slide rail are provided in the receiving cavity. The box lid can be switched between the two positions. , the circuit board can slide between the two slide rails for easy addition, removal and removal.
It improves the flexibility and safety of reliability testing, avoids the risk of users putting in or taking out circuit boards in batches multiple times, and reduces the harm to users in high or low temperature environments.
Smart Images
Figure CN222379836U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of a PCB reliability comprehensive test device, in particular to a PCB reliability comprehensive test device. Background Art
[0002] PCB is a component used to support and connect electronic components. It is composed of insulating materials and conductive lines. It is an indispensable basic component in the modern electronics industry and is widely used in communications, computers, consumer electronics, automobiles, aerospace and other fields.
[0003] Generally, during the production of PCBs, reliability testing is required for PCBs. Reliability testing refers to a series of tests performed on PCBs and the electronic components on them to ensure that they can operate stably and reliably within their design life. These tests are designed to evaluate the performance, durability and stability of the PCB, as well as its performance under various environmental conditions. During the reliability testing process, a reliability testing device is used. This device can simulate the working conditions of the PCB during use and can detect whether the PCB will have defects such as bursting, paint peeling, and size changes during use.
[0004] Since reliability testing takes a long time, in order to improve the efficiency of reliability testing equipment, it is often necessary to add or remove circuit boards during the experiment, or take out circuit boards for visual inspection at corresponding times. However, current reliability testing equipment is not convenient for performing these operations on circuit boards. Utility Model Content
[0005] Based on this, it is necessary to provide a PCB reliability comprehensive testing device.
[0006] A PCB reliability comprehensive test device comprises a box body and a box cover, wherein the box body has a receiving cavity, the receiving cavity has an opening for a circuit board to enter and exit, the box cover is hinged to the box body, a wall surface of the receiving cavity is provided with a first slide rail, and the box cover is provided with a second slide rail;
[0007] The box cover has a first position and a second position relative to the box body, and when the box cover is in the first position, the box cover closes the opening;
[0008] When the box cover is at the second position, the box cover opens the opening, and the second slide rail of the box cover is arranged corresponding to the first slide rail, so that the circuit board can slide between the first slide rail and the second slide rail.
[0009] In one of the embodiments, a slider is further included. The slider is slidably disposed on the first slide rail or the second slide rail, and the slider is used to fix the circuit board.
[0010] In one embodiment, the cross-sectional shapes of the first slide rail and the second slide rail are set to be T-shaped, and the shape of the sliding block matches the shape of the first slide rail and the shape of the second slide rail.
[0011] In one embodiment, the slider is provided with a slot for clamping the circuit board.
[0012] In one of the embodiments, a heating component is further included, and the heating component is disposed in the receiving cavity.
[0013] In one of the embodiments, a cooling component is further included, and the cooling component is disposed in the receiving cavity.
[0014] In one of the embodiments, a humidifying component is further included, and the humidifying component is disposed in the receiving chamber.
[0015] In one embodiment, the number of the first slide rails and the number of the second slide rails are plural and are arranged in one-to-one correspondence.
[0016] In one embodiment, the first slide rail and the second slide rail are made of stainless steel.
[0017] In one embodiment, the lower edge of the box cover is hinged to the box body, and the upper edge of the box cover is flipped from top to bottom to open and close from the box body.
[0018] The above-mentioned PCB reliability comprehensive test device sets the circuit board on the first slide rail, and sets the box cover at the opening, so that the circuit board can be tested for reliability in the receiving chamber. When you want to add a circuit board during the test, you can open the box cover, so that the second slide rail of the box cover is set corresponding to the first slide rail. At this time, the circuit boards to be placed can be arranged in sequence on the second slide rail, and then pushed into the first slide rail at one time, avoiding the user from arranging the circuit boards one by one into the receiving chamber in multiple times, making it easier for the circuit boards to be arranged neatly, improving the accuracy of the reliability test, and reducing the risk of high temperature or low temperature environment in the receiving chamber damaging the user. When you want to take out the circuit board that has been tested during the test, you can slide the circuit board to be taken out from the first slide rail to the second slide rail first. At this time, you can easily check whether you have taken the wrong circuit board, and you can also let the corresponding circuit board return to room temperature first, reducing the risk of high temperature or low temperature surface of the circuit board damaging the user. When you want to take out the circuit board for visual inspection during the test, you can slide the circuit board on the first slide rail to the second slide rail, and perform a visual inspection on the circuit board on the second slide rail. When the circuit board is on the second slide rail, the user does not need to hold the circuit board, thereby avoiding the user from touching the circuit board and affecting the experimental results as much as possible, and avoiding the high temperature or low temperature surface of the circuit board from hurting the user. After the visual inspection is completed, the circuit board can be pushed into the second slide rail and the box cover can be closed to continue the reliability test. In summary, the PCB reliability comprehensive test device improves the safety during reliability testing and enhances the flexibility of reliability testing. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 The present invention is a schematic diagram of the three-dimensional structure of a box cover of a PCB reliability comprehensive testing device in a first position according to an embodiment.
[0020] Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure of the box cover of the PCB reliability comprehensive testing device in the second position in the embodiment.
[0021] Figure 3 for Figure 2 A schematic diagram of the local enlarged structure at A in the embodiment.
[0022] Among them, 10, PCB reliability comprehensive test device; 100, box body; 200, box cover; 101, receiving cavity; 102, opening; 130, first slide rail; 240, second slide rail; 150, slider; 151, slot; 800, circuit board. DETAILED DESCRIPTION
[0023] For ease of understanding of the application, the application will be described more fully below. The application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the application more thorough and comprehensive.
[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. In the description of the present application, the meaning of "several" is at least one, such as one, two, etc., unless otherwise clearly and specifically defined.
[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which the present application belongs. The terms used herein in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.
[0026] In the present application, the technical features described in an open manner include closed technical solutions composed of the listed features, and also include open technical solutions containing the listed features.
[0027] like Figures 1 to 3 As shown, in one embodiment, a PCB reliability comprehensive test device 10 is provided. The PCB reliability comprehensive test device 10 includes a box body 100 and a box cover 200. The box body 100 has a receiving cavity 101 therein. The receiving cavity 101 is used to receive a circuit board 800 and allow the circuit board 800 to undergo reliability testing in the receiving cavity 101. The receiving cavity 101 has an opening 102 for the circuit board 800 to enter and exit.
[0028] The box cover 200 is hinged to the box body 100. Specifically, the box cover 200 and the box body 100 are hinged via a rotating shaft. For example, the box cover 200 is provided with a first hinge, the box body 100 is provided with a second hinge, and the rotating shaft passes through the first hinge and the second hinge, so that the box cover 200 and the box body 100 are hinged by relative rotation of the first hinge and the second hinge. It can be understood that the hinge belongs to the prior art, and this application does not elaborate.
[0029] The wall surface of the receiving chamber 101 is provided with a first slide rail 130, and the box cover 200 is provided with a second slide rail 240. The first slide rail 130 and the second slide rail 240 are used to allow the circuit board 800 to slide and park on the first slide rail 130 and the second slide rail 240.
[0030] The box cover 200 has a first position and a second position relative to the box body 100. When the box cover 200 is in the first position, the box cover 200 closes the opening 102. At this time, the first slide rail 130 and the second slide rail 240 are vertically arranged, and the circuit board 800 is placed on the first slide rail 130 in the receiving cavity 101.
[0031] When the box cover 200 is in the second position, the box cover 200 opens the opening 102, and the second slide rail 240 of the box cover 200 is arranged corresponding to the first slide rail 130, so that the circuit board 800 can slide between the first slide rail 130 and the second slide rail 240. At this time, the circuit board 800 can be slid from the first slide rail 130 to the second slide rail 240, or the circuit board 800 can be slid from the second slide rail 240 to the first slide rail 130, so that the circuit board 800 can switch positions back and forth between the first slide rail 130 and the second slide rail 240, and enter and exit the receiving chamber 101 through the opening 102. Figure 3 In the figure, it can be seen that one of the circuit boards 800 located on the left side of the figure slides out to the second slide rail along with the slider 150, while the remaining circuit boards are still placed on the first slide rail.
[0032] The above-mentioned PCB reliability comprehensive test device 10 sets the circuit board 800 on the first slide rail 130, and sets the box cover 200 on the opening 102, so that the circuit board 800 can be tested for reliability in the receiving chamber 101. When adding a circuit board 800 during the test, the box cover 200 can be opened, so that the second slide rail 240 of the box cover 200 is set corresponding to the first slide rail 130. At this time, the circuit boards 800 to be placed can be arranged in sequence on the second slide rail 240, and then pushed into the first slide rail 130 at one time, avoiding the user having to arrange the circuit boards 800 one by one and put them into the receiving chamber 101 multiple times, facilitating the neat arrangement of the circuit boards 800, improving the accuracy of the reliability test, and reducing the risk of the high temperature environment or low temperature environment in the receiving chamber 101 damaging the user. When you want to take out the circuit board 800 after the test, you can slide the circuit board 800 to be taken out from the first slide rail 130 to the second slide rail 240. At this time, you can easily check whether the wrong circuit board 800 is taken out, and you can also let the corresponding circuit board 800 return to room temperature first, reducing the risk of the high temperature surface or low temperature surface of the circuit board 800 injuring the user. When you want to take out the circuit board 800 for visual inspection during the test, you can slide the circuit board 800 on the first slide rail 130 to the second slide rail 240, and visually inspect the circuit board 800 on the second slide rail 240. When the circuit board 800 is located on the second slide rail 240, the user does not need to hold the circuit board 800, so as to avoid the user touching the circuit board 800 to affect the experimental results as much as possible, and avoid the high temperature surface or low temperature surface of the circuit board 800 from injuring the user. After the visual inspection, the circuit board 800 can be pushed into the second slide rail 240 and the box cover 200 is closed to continue the reliability test. In summary, the PCB comprehensive reliability testing device 10 improves the safety during reliability testing and enhances the flexibility of performing reliability testing.
[0033] In order to make the circuit board 800 slide better between the first slide rail 130 and the second slide rail 240, in one embodiment, the PCB reliability comprehensive test device 10 further includes a slider 150, which is slidably disposed on the first slide rail 130 or the second slide rail 240, and the slider 150 is used to fix the circuit board 800. The contact surface of the slider 150 with the first slide rail 130 and the second slide rail 240 can be set to a material with a low friction coefficient, so that the slider 150 slides smoothly between the first slide rail 130 and the second slide rail 240. The slider 150 is also used to fix the circuit board 800, thereby driving the circuit board 800 to slide.
[0034] To prevent the slider 150 from derailing, in one embodiment, the cross-sectional shape of the first slide rail 130 and the second slide rail 240 is set to be T-shaped, and the shape of the slider 150 matches the shape of the first slide rail 130 and the shape of the second slide rail 240. In this embodiment, the shape of the slider 150 matches the shape of the T-shape and is clamped on the first slide rail 130 or the second slide rail 240 to prevent the slider 150 from derailing.
[0035] In one embodiment, the slider 150 is provided with a narrow slot 151 for clamping the circuit board 800 , and the circuit board 800 is embedded in the narrow slot 151 so that the circuit board 800 and the slider 150 are relatively fixed.
[0036] In one embodiment, the number of the first slide rail 130 and the second slide rail 240 are respectively multiple and arranged one by one. In this embodiment, a slider 150 is slidably arranged on each corresponding first slide rail 130 and second slide rail 240, so that multiple circuit boards 800 can be placed and processed at the same time.
[0037] In order to make the first slide rail 130 and the second slide rail 240 more durable, in one embodiment, the material of the first slide rail 130 and the second slide rail 240 is stainless steel. Stainless steel can avoid rusting during reliability testing and has a small friction coefficient, which can enable the circuit board 800 to slide smoothly on the first slide rail 130 and the second slide rail 240.
[0038] In one embodiment, the lower edge of the box cover 200 is hinged to the box body 100, and the upper edge of the box cover 200 is flipped from the box body 100 to open and close. In this embodiment, the upper edge of the box cover 200 is flipped from the box body 100 to open and close, so that when the box cover 200 is opened, the box cover 200 is flush with the bottom of the receiving cavity 101, and the first slide rail 130 and the second slide rail 240 are correspondingly arranged. At this time, the circuit board 800 can slide on the first slide rail 130 and the second slide rail 240, and can be parked at the corresponding position under the support of the first slide rail 130 and the second slide rail 240.
[0039] To achieve reliability testing, in one embodiment, the PCB reliability comprehensive testing device also includes a heating component, a cooling component and a humidifying component, and the heating component, cooling component and humidifying component are all arranged in the receiving cavity. The heating component includes a heating wire, the cooling component includes a connected compressor and a fan, and the humidifying component includes a humidifier, so that the temperature cycle test in the reliability test and the test under high temperature and high humidity conditions can be achieved. Since the heating component, the cooling component and the humidifying component belong to the prior art and are also widely used in reliability testing devices, this embodiment does not elaborate.
[0040] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0041] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. A PCB reliability comprehensive testing device, characterized in that: It comprises a box body and a box cover, wherein the box body has a receiving cavity, the receiving cavity has an opening for the circuit board to enter and exit, the box cover is hinged to the box body, the wall surface of the receiving cavity is provided with a first slide rail, and the box cover is provided with a second slide rail; The box cover has a first position and a second position relative to the box body, and when the box cover is in the first position, the box cover closes the opening; When the box cover is at the second position, the box cover opens the opening, and the second slide rail of the box cover is arranged corresponding to the first slide rail, so that the circuit board can slide between the first slide rail and the second slide rail.
2. The PCB reliability comprehensive testing device according to claim 1, characterized in that: It also includes a slider, which is slidably arranged on the first slide rail or the second slide rail, and is used to fix the circuit board.
3. The PCB reliability comprehensive testing device according to claim 2, characterized in that: The cross-sectional shapes of the first slide rail and the second slide rail are set to be T-shaped, and the shapes of the sliding block match the shapes of the first slide rail and the second slide rail.
4. The PCB reliability comprehensive testing device according to claim 2, characterized in that: The slide block is provided with a narrow slot for clamping the circuit board.
5. The PCB reliability comprehensive testing device according to claim 1, characterized in that: It also includes a heating component, which is arranged in the receiving cavity.
6. The PCB reliability comprehensive testing device according to claim 1, characterized in that: It also includes a cooling component, which is arranged in the receiving cavity.
7. The PCB reliability comprehensive testing device according to claim 1, characterized in that: It also includes a humidifying component, which is arranged in the receiving cavity.
8. The PCB reliability comprehensive testing device according to claim 1, characterized in that: The number of the first slide rails and the number of the second slide rails are respectively plural and arranged in one-to-one correspondence.
9. The PCB reliability comprehensive testing device according to claim 1, characterized in that: The first slide rail and the second slide rail are made of stainless steel.
10. The PCB reliability comprehensive testing device according to any one of claims 1 to 9, characterized in that: The lower edge of the box cover is hinged to the box body, and the upper edge of the box cover is flipped from top to bottom to open and close from the box body.