Aging test rack for PCBA board

Abstract

The utility model provides a kind of aging test frame for PCBA board, including test frame main part and equidistance installation on test frame main part and placing plate, equidistance installation is equipped with several support components on each described placing plate, the support component includes baffle, sliding rod and support plate, the quantity of baffle is two, two described baffles are fixedly installed on placing plate upper end, and sliding rod is slidably installed on two baffles.The sliding block of sliding rod bottom end and dovetail groove on baffle are slidably matched in the utility model, can freely adjust transverse position along the length direction of baffle, adapt to different length PCBA board, and support plate is slidably connected with extension plate by rectangular groove, combined with the locking structure of spring top bead and slot, can be flexibly adjusted support height and fixed, adapt to different test connector height PCBA board, can satisfy diversification test demand, reduce test cost, improve operation flexibility.

Description

Technical Field

[0001] This utility model belongs to the field of PCBA board technology, and more specifically, it relates to an aging test fixture for PCBA boards. Background Technology

[0002] As the core carrier of electronic devices, the long-term operational stability of PCBA (Printed Circuit Board) directly determines the lifespan and reliability of these devices. Therefore, after PCBA production is completed, aging tests are required to simulate its operation under complex working environments such as long-term high temperatures and continuous power supply. This tests assess whether its electrical performance, heat dissipation performance, and structural stability meet design requirements, identify early failures, and ensure the safe use of subsequent electronic devices.

[0003] During PCBA board aging tests, external test harnesses are connected to the test connectors on the PCBA board to transmit current and signals, simulating actual working conditions. The test connectors, as the core nodes for signal and current transmission, directly determine the accuracy of the aging test data due to their connection stability. However, existing PCBA board aging test fixtures generally lack dedicated support structures for the test harness connectors, making them prone to sagging due to their own weight or harness tension, leading to loose connections, poor contact, or even open circuits. This results in abnormal test signals, data distortion, and affects test reliability. To address this deficiency of "lack of connector support structure" in existing technologies and the resulting inaccurate test data, there is an urgent need to develop a PCBA board aging test fixture with dedicated connector support to fill the technological gap and ensure the accuracy and efficiency of aging tests. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides an aging test fixture for PCBA boards, which is achieved by the following specific technical means:

[0005] An aging test fixture for PCBA boards includes a test fixture body and placement plates equidistantly mounted on the test fixture body. Each placement plate has several support components equidistantly mounted. Each support component includes a baffle, a slide rod, and a support plate. There are two baffles, both of which are fixedly mounted on the upper end of the placement plate. The slide rod is slidably mounted on the two baffles. The support plate is located above the slide rod. Extension plates are fixedly mounted on both sides of the upper end of the slide rod. Rectangular grooves are formed on opposite sides of the two extension plates. The two ends of the support plate are slidably mounted in the rectangular grooves.

[0006] Furthermore, there is a gap between the two baffles.

[0007] Furthermore, each of the baffles has a groove on its upper surface, and sliders are fixedly installed on both sides of the bottom end of the slide rod.

[0008] Furthermore, each of the grooves is designed in the shape of a dovetail groove, and each of the sliders is slidably installed in the groove.

[0009] Furthermore, each of the extension plates has several slots equidistantly spaced on its inner wall, and spring top beads are embedded at both ends of the support plate.

[0010] Furthermore, the spring ball is engaged in a slot to lock the position of the support plate.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The slider at the bottom of the slide bar in the PCBA board aging test fixture slides in conjunction with the dovetail groove on the baffle, allowing the lateral position to be freely adjusted along the length of the baffle, adapting to PCBA boards of different lengths. The support plate is slidably connected to the extension plate through a rectangular groove, and combined with the locking structure of the spring top ball and the slot, the support height can be flexibly adjusted and fixed, adapting to PCBA boards with different test connector heights, meeting diverse testing needs, reducing testing costs, and improving operational flexibility.

[0013] 2. The dovetail groove structure restricts the slider from moving up and down, allowing it to move only along the length of the groove. This ensures that the slider and support plate will not move laterally or shift up and down during testing. The spring ball and the slot can firmly lock the height of the support plate, preventing it from sliding down or moving up due to vibration or wire harness pulling. The support plate can accurately support the test wire harness connector of the PCBA board, preventing poor contact caused by connector sagging. This ensures stable current and signal transmission during aging testing, avoids test data distortion, and improves the accuracy of test results. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall aging test fixture for PCBA boards according to this utility model.

[0015] Figure 2 This is a schematic diagram of the support component of this utility model.

[0016] Figure 3 This is a schematic diagram of the extension plate of this utility model cut open.

[0017] Figure 4 This is a utility model Figure 3 A magnified diagram of point A in the middle.

[0018] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0019] 1. Test fixture body; 2. Placement plate; 3. Support assembly; 31. Baffle; 32. Slide rod; 33. Support plate; 34. Spring top ball; 35. Extension plate; 36. Slider; 37. Rectangular groove; 38. Slide groove; 39. Card slot. Detailed Implementation

[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0021] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Example:

[0024] As attached Figure 1 To be continued Figure 4 As shown:

[0025] This utility model provides an aging test fixture for PCBA boards, including a test fixture body 1 and placement plates 2 equidistantly mounted on the test fixture body 1. Each placement plate 2 has several support components 3 equidistantly mounted on it. Each support component 3 includes a baffle 31, a sliding rod 32, and a support plate 33. There are two baffles 31, both fixedly mounted on the upper end of the placement plate 2. The sliding rod 32 is slidably mounted on the two baffles 31. The support plate 33 is located above the sliding rod 32. Extension plates 35 are fixedly mounted on both sides of the upper end of the sliding rod 32.

[0026] The two extension plates 35 each have rectangular grooves 37 on their opposite sides. The two ends of the support plate 33 are slidably installed in the rectangular grooves 37, which limit the movement of the support plate 33 and ensure the stability of the movement.

[0027] There is a gap between the two baffles 31 to provide space for the PCBA board;

[0028] Each baffle 31 has a groove 38 on its upper surface, and sliders 36 are fixedly installed on both sides of the bottom end of the slide rod 32.

[0029] Each slide 38 is designed in the shape of a dovetail groove, and each slider 36 is slidably installed in the slide 38. The dovetail groove can restrict the slider 36 from moving up and down, and only allows it to move along the length of the groove.

[0030] Each extension plate 35 has several slots 39 evenly spaced on its inner wall. Both ends of the support plate 33 are embedded with spring beads 34. The beads in the spring beads 34 are engaged in the slots 39 to lock the position of the support plate 33. The spring beads 34 embedded at both ends of the support plate 33 are compressed and contracted by the inner wall of the extension plate 35. When the height of the support plate 33 reaches the target position, the beads in the spring beads 34 will pop out under the action of the spring force and engage in the slots 39 evenly spaced on the inner wall of the extension plate 35, thereby locking the height of the support plate 33 and preventing the support plate 33 from shifting on its own during subsequent testing.

[0031] The working principle of this embodiment:

[0032] Step 1: The slide groove 38 on the upper surface of the baffle 31 is designed as a dovetail groove. The slider 36 at the bottom of the slide rod 32 slides in conjunction with the dovetail groove (the dovetail groove can restrict the slider 36 from moving up and down, and only allows it to move along the length of the groove). The operator can push the slide rod 32 along the length of the baffle 31, so that the slide rod 32 drives the upper support plate 33 to move laterally until the lateral position of the support plate 33 is aligned with the connector of the test wire harness to be connected to the PCBA board, thus matching the length specification of the PCBA board.

[0033] Step 2: Rectangular slots 37 are provided on both opposite sides of the two extension plates 35. The rectangular slots 37 restrict the support plate 33 to move only along the height direction of the extension plate 35. According to the height requirements of the PCBA board test connector, the operator slides the support plate 33 up or down. During the sliding process, the spring top beads 34 embedded at both ends of the support plate 33 will be squeezed and contracted by the inner wall of the extension plate 35. When the height of the support plate 33 reaches the target position, the top beads of the spring top beads 34 will pop out under the action of the spring force and lock into the slots 39 that are equidistantly opened on the inner wall of the extension plate 35, thereby locking the height of the support plate 33 and preventing the support plate 33 from shifting on its own during subsequent testing.

[0034] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. An aging test fixture for PCBA boards, comprising a test fixture body (1) and placement plates (2) equidistantly mounted on the test fixture body (1), characterized in that: Each of the placement plates (2) is equidistantly equipped with a number of support components (3); each support component (3) includes a baffle (31), a slide rod (32) and a support plate (33). There are two baffles (31), both of which are fixedly installed on the upper end of the placement plate (2). The slide rod (32) is slidably installed on the two baffles (31), and the support plate (33) is located above the slide rod (32). Among them, extension plates (35) are fixedly installed on both sides of the upper end of the slide rod (32), and rectangular grooves (37) are opened on the opposite sides of the two extension plates (35). The two ends of the support plate (33) are respectively slidably installed in the rectangular grooves (37).

2. The aging test fixture for PCBA boards as described in claim 1, characterized in that: There is a gap between the two baffles (31).

3. The aging test fixture for PCBA boards as described in claim 1, characterized in that: Each of the baffles (31) has a groove (38) on its upper surface, and sliders (36) are fixedly installed on both sides of the bottom end of the slide rod (32).

4. The aging test fixture for PCBA boards as described in claim 3, characterized in that: Each of the grooves (38) is designed in the shape of a dovetail groove, and each of the sliders (36) is slidably installed in the groove (38).

5. The aging test fixture for PCBA boards as described in claim 1, characterized in that: Each of the extension plates (35) has a number of slots (39) evenly spaced on its inner wall, and spring top beads (34) are embedded at both ends of the support plate (33).

6. The aging test fixture for PCBA boards as described in claim 5, characterized in that: The spring ball (34) is inserted into the slot (39) to lock the position of the support plate (33).

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