High-energy-efficiency burning test fixture

Abstract

The utility model discloses a high-energy-efficiency burning test fixture, which relates to the technical field of test fixtures and comprises a main bottom box. The bottom box is provided with an object placing plate used for placing a PCBA board to be tested, a rack located on one side of the object placing plate, an air cylinder installed on the rack, a carrier plate connected with the lower end of the air cylinder, a test board installed at the lower end of the carrier plate, a test probe installed on the test board and corresponding to the object placing plate, and a tester electrically connected with the test probe. A descending button and an ascending button which are electrically connected with the cylinder are arranged at one side end of the bottom box; the bottom box is provided with a start button electrically connected with the tester, one side of the test board is provided with a trigger rod corresponding to the position of the start button, and the trigger rod can synchronously press the start button when the test probe is in contact with the contact of the PCBA board, so that the tester is electrified and started to test the PCBA board. And after the test is completed, the test probe is separated from the PCBA board, and the trigger rod is separated from the start button, so that the tester is powered off and closed, and electrical energy is utilized more efficiently.

Description

Technical Field

[0001] The utility model relates to the technical field of test fixtures, and in particular to a high-energy-efficiency burning test fixture. Background Art

[0002] Printed circuit board assemblies (PCBAs) are crucial components in the electronics industry. Currently, a single PCBA often consists of multiple chips (units) with identical structures and patterns. This allows for the PCBA to be separated and reused after fabrication and testing, enabling large-scale production. Before electronic and electrical product assembly, the PCBA is typically functionally tested to ensure quality control.

[0003] When using the current PCBA high-efficiency burning test fixture, it is necessary to first place the PCBA board into a fixed sleeve, then start the cylinder and tester, and use the cylinder to push the probe electrically connected to the tester downward so that the probe can test the contacts of the PCBA board, and the test situation is displayed on the tester. After the test result is obtained, the cylinder is controlled by the up button to drive the probe to rise and separate from the PCBA board, and then the next PCBA board is tested in turn. However, there are still some defects in the operation process. For example, the tester needs to be turned on before the probe contacts the PCBA board, and after the probe completes the test of a PCBA board, the cylinder drives the probe to separate from the PCBA board contact, but the tester will not be turned off, resulting in the tester needing to be turned on all the time, which cannot efficiently utilize electrical energy. If the tester needs to be manually turned on and off for each test on a PCBA board, the test cycle time will be increased, which will reduce the efficiency of the production line.

[0004] Therefore, it is necessary to propose a new technical solution to solve the above problems. Utility Model Content

[0005] In order to overcome the above-mentioned shortcomings, the present invention aims to provide a technical solution that can solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention provides the following technical solutions: a high-efficiency burning test fixture, comprising a main bottom box, the bottom box being provided with a storage plate for placing the PCBA board to be tested, a rack located on one side of the storage plate, a cylinder mounted on the rack, a carrier plate connected to the lower end of the cylinder, a test board mounted on the lower end of the carrier plate, test probes mounted on the test board corresponding to the storage plate, and a tester electrically connected to the test probes;

[0007] One side end of the bottom box is provided with a descending button and an ascending button electrically connected to the cylinder;

[0008] The bottom box is provided with a start button electrically connected to the tester, and one side of the test board is provided with a trigger rod corresponding to the position of the start button.

[0009] As a further solution of the utility model: the lower end of the cylinder is connected to an upper plate, and a T-shaped slot is opened on one side of the upper plate;

[0010] The upper end of the carrier plate is connected to a lower plate, and the lower plate is provided with a T-shaped plate that is plugged into the T-shaped slot;

[0011] Two L-shaped guard plates are provided on one side of the upper plate close to the T-slot opening. The two L-shaped guard plates are distributed on both sides outside the T-slot opening. The two L-shaped guard plates are respectively axially connected to a left baffle and a right baffle.

[0012] As a further solution of the present invention: a slot is formed on one end of the left baffle toward the right baffle, and a butt end matching the slot is formed on one end of the right baffle toward the left baffle;

[0013] A magnet is embedded in the butt end, and an iron block is embedded in the inner wall of the slot.

[0014] As a further solution of the present invention: a hanging ear portion is formed on one side of the test plate, the hanging ear portion is provided with a through hole, and the trigger rod passes through the through hole and is threadedly connected thereto.

[0015] As a further solution of the present invention: a pressure plate is fixedly provided at the lower end of the trigger rod.

[0016] As a further solution of the present invention: there are two descending buttons, and there is a certain distance between the two descending buttons.

[0017] Compared with the existing technology, the beneficial effects of this technical solution are:

[0018] 1. When the cylinder pushes the carrier board and test board down, the test board drives the test probe and trigger rod to descend together. When the test probe contacts the contact point of the PCBA board, the trigger rod synchronously presses the start button on the bottom box, thereby powering on the tester and starting to test the PCBA board. When the test is completed, press the up button to make the cylinder drive the carrier board and test board up, so that the test probe is separated from the PCBA board. At the same time, the trigger rod is synchronously disengaged from the start button, so that the tester is powered off and shut down. This allows the tester to be started when in use and shut down when not in use, making more efficient use of electrical energy.

[0019] 2. The carrier plate and the test plate can be quickly installed under the cylinder by plugging the T-plate on the lower plate of the carrier plate and the T-slot on the upper plate. The left baffle and the right baffle are first rotated and merged in the middle to limit the T-block to prevent it from detaching from the T-slot, thereby realizing the rapid disassembly and assembly of the carrier plate and the test plate, and facilitating the maintenance of the test probes on the test plate or replacing them as needed.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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 labor.

[0022] Figure 1 It is a structural diagram of the utility model;

[0023] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0024] Figure 3 This is a schematic diagram of the test board structure of the utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the utility model when the lower plate and the upper plate are plugged in;

[0026] Figure 5 This is a schematic diagram of the utility model when the lower plate is not plugged into the upper plate;

[0027] The corresponding reference numerals in the accompanying drawings are described as follows:

[0028] 1. Bottom box; 2. Storage plate; 3. Rack; 4. Cylinder; 401. Down button; 402. Up button; 5. Carrier plate; 501. Lower plate; 502. T-shaped plate; 6. Test plate; 601. Ear; 602. Through hole; 7. Tester; 701. Test probe; 702. Start button; 8. Trigger lever; 801. Press plate; 9. Upper plate; 901. T-slot; 902. L-shaped guard plate; 903. Left baffle; 9031. Slot; 9032. Iron block; 904. Right baffle; 9041. Docking terminal; 9042. Magnet. DETAILED DESCRIPTION

[0029] The following will be combined with the 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.

[0030] See also Figure 1-5 A high-efficiency burning test fixture includes a bottom box 1, a storage plate 2 for placing the PCBA board to be tested, a rack 3 located on one side of the storage plate 2, a cylinder 4 mounted on the rack 3, a carrier plate 5 connected to the lower end of the cylinder 4, a test board 6 mounted on the lower end of the carrier plate 5, a test probe 701 corresponding to the storage plate 2 mounted on the test board 6, and a tester 7 electrically connected to the test probe 701. A back plate is formed on the rack 3, and the cylinder 4 is mounted on the back plate of the rack via bolts for power supply;

[0031] The storage plate 2 is provided with two storage slots, and each of the tester 7 and the test probe 701 is provided with two. When testing, two PCBA boards can be placed in the two storage slots at the same time, and then the two test probes 701 can test the two PCBA boards at the same time, thereby improving the test efficiency;

[0032] One side of the bottom box 1 is provided with a down button 401 and an up button 402 electrically connected to the air cylinder 4. The bottom box 1 has a cavity within it, in which an air pump and a power supply (not shown) are installed. The air pump is connected to the air cylinder 4 via an air pipe, and the down button 401 and the up button 402 are both electrically connected to the air pump. When the down button 401 is pressed, the air cylinder 4 pushes the carrier board 5 and the test board 6 down, allowing the test probe 701 to contact the contacts of the PCBA board for testing. After the test is completed, pressing the up button 402 causes the air cylinder 4 to drive the carrier board 5 and the test board 6 up, separating the test probe 701 from the PCBA board.

[0033] The power supply installed in the inner cavity of the bottom box 1 is used to power the air pump and the tester 7. At the same time, a power interface is provided on the top of the bottom box (not shown in the figure). When using the utility model, the external power supply is connected to the power interface to energize the power supply, thereby enabling the cylinder 4 and the tester 7 to be used normally;

[0034] A start button 702 electrically connected to the tester 7 is provided on the bottom box 1 , and a trigger rod 8 corresponding to the position of the start button 702 is provided on one side of the test board 6 .

[0035] Specifically, when the cylinder 4 pushes the carrier board 5 and the test board 6 to descend, the test board 6 drives the test probe 701 and the trigger rod 8 to descend together. When the test probe 701 contacts the contact of the PCBA board, the trigger rod 8 synchronously presses the start button 702 on the bottom box 1, thereby powering on the tester 7 and starting to test the PCBA board. When the test is completed, by pressing the up button 402, the cylinder 4 drives the carrier board 5 and the test board 6 to rise, so that the test probe 701 is separated from the PCBA board. At the same time, the trigger rod 8 synchronously disengages from the start button 702, so that the tester 7 is powered off and shut down, so that the tester 7 can be started when in use and shut down when not in use, making more efficient use of electrical energy.

[0036] Preferably, a hanging ear portion 601 is formed on one side of the test plate 6 , and a through hole 602 is formed in the hanging ear portion 601 , and the trigger rod 8 passes through the through hole 602 and is threadedly connected thereto.

[0037] Specifically, the trigger rod 8 is fixed in position by a threaded connection with the through hole 602, and the height of the trigger rod 8 can be fine-tuned by rotating the trigger rod 8 forward and backward, so that the position of the trigger rod 8 is more accurate. At the same time, the ear portion 601 protrudes outward to prevent the trigger rod 8 from being on the storage plate 2.

[0038] Preferably, a pressure plate 801 is fixed to the lower end of the trigger rod 8, and the pressure plate 801 can be used to better press the start button 702.

[0039] More preferably, there are two descending buttons 401, and there is a certain distance between the two descending buttons 401. When performing PCBA board testing, the staff needs to press the descending buttons 401 at the same time to start the cylinder 4. The distance between the two descending buttons 401 makes it impossible for the staff to press the descending buttons 401 at the same time with one hand, so that the staff must operate with both hands, thereby achieving a fool-proof effect, avoiding the staff from being injured when the other hand that puts the PCBA board into the storage plate 2 is not retracted in time when operating with one hand.

[0040] In the embodiment of the present utility model, the lower end of the cylinder 4 is connected to an upper plate 9, and a T-slot 901 is opened on one side of the upper plate 9;

[0041] The upper end of the carrier plate 5 is connected to a lower plate 501 , and the lower plate 501 is provided with a T-shaped plate 502 that mates with the T-shaped slot 901 ;

[0042] Two L-shaped guard plates 902 are provided on one side of the upper plate 9 near the opening of the T-slot 901. The two L-shaped guard plates 902 are distributed on both sides outside the opening of the T-slot 901. The two L-shaped guard plates 902 are respectively connected to the left baffle 903 and the right baffle 904. Figure 4-5As shown, the T-slot 901 does not penetrate the upper plate 9, so that the T-plate 502 cannot be detached from the T-slot 901 from the other side after being plugged into the T-slot 901. By setting the two L-shaped guard plates 902, two channels are formed between the L-shaped guard plates 902 and the upper plate 9. The left baffle 903 and the right baffle 904 are respectively axially connected to the L-shaped guard plates 902 in the two channels, so that the left baffle 903 and the right baffle 904 can rotate, and the axial connection between the left baffle 903 and the right baffle 904 is set to be semicircular to avoid getting stuck during rotation.

[0043] Specifically, when installing the carrier plate 5 and the test plate 6 between the cylinder 4 and the storage plate 2, first unfold the left baffle 903 and the right baffle 904 to the opposite sides, then plug the T-plate 502 on the lower plate 501 into the T-slot 901, and after the T-plate 502 is completely inserted into the T-slot 901, the carrier plate 5 and the test plate 6 can be installed at the lower end of the cylinder 4 and cannot fall off, and then rotate the left baffle 903 and the right baffle 904 to the middle so that the left baffle 903 and the right baffle 904 are blocked outside the T-slot 901, and the left baffle 903 and The other part of the right baffle 904 is located in the channel formed between the L-shaped guard plate 902 and the upper plate 9, so that the left baffle 903 and the right baffle 904 can intercept the T-shaped plate 502 in the T-shaped slot 901 and prevent it from sliding out, thereby completing the installation of the carrier plate 5 and the test board 6. When disassembling the carrier plate 5 and the test board 6, the left baffle 903 and the right baffle 904 are unfolded to both sides, so that the T-shaped plate 502 can slide out of the T-shaped slot 901, and then the carrier plate 5 and the test board 6 can be disassembled, which is convenient for maintenance of the test probe 701 or replacement as needed.

[0044] Preferably, a slot 9031 is formed on one end of the left baffle 903 facing the right baffle 904, and a docking end 9041 that matches the slot 9031 is formed on one end of the right baffle 904 facing the left baffle 903;

[0045] A magnet 9042 is embedded in the butt end 9041 , and an iron block 9032 is embedded in the inner wall of the slot 9031 .

[0046] Specifically, when the left baffle 903 and the right baffle 904 are rotated toward the middle and merged, the docking end 9041 is correspondingly inserted into the slot 9031, and then the magnet 9042 on the docking end 9041 will attract the iron block 9032 on the inner wall of the slot 9031, thereby fixing the left baffle 903 and the right baffle 904 in connection, preventing the left baffle 903 and the right baffle 904 from expanding outward due to vibration.

[0047] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A high energy efficiency burning test fixture, characterized in that: The invention comprises a main bottom box (1), wherein the bottom box (1) is provided with a storage plate (2) for placing a PCBA board to be tested, a rack (3) located on one side of the storage plate (2), a cylinder (4) mounted on the rack (3), a carrier plate (5) connected to the lower end of the cylinder (4), a test board (6) mounted on the lower end of the carrier plate (5), a test probe (701) mounted on the test board (6) and corresponding to the storage plate (2), and a tester (7) electrically connected to the test probe (701); One side end of the bottom box (1) is provided with a descending button (401) and an ascending button (402) electrically connected to the cylinder (4); The bottom box (1) is provided with a start button (702) electrically connected to the tester (7), and one side of the test board (6) is provided with a trigger rod (8) corresponding to the position of the start button (702).

2. The high-efficiency burning test fixture according to claim 1, characterized in that: The lower end of the cylinder (4) is connected to an upper plate (9), and a T-shaped slot (901) is provided on one side of the upper plate (9); The upper end of the carrier plate (5) is connected to a lower plate (501), and the lower plate (501) is provided with a T-shaped plate (502) that is mated and plugged with the T-shaped slot (901); Two L-shaped guard plates (902) are provided on one side of the upper plate (9) close to the opening of the T-shaped slot (901). The two L-shaped guard plates (902) are distributed on both sides outside the opening of the T-shaped slot (901). The two L-shaped guard plates (902) are respectively axially connected to a left baffle (903) and a right baffle (904).

3. The high energy efficiency burning test fixture according to claim 2, characterized in that: The left baffle (903) is provided with a slot (9031) on one end facing the right baffle (904), and the right baffle (904) is formed with a docking end (9041) that matches the slot (9031) on one end facing the left baffle (903); A magnet (9042) is embedded in the butt end (9041), and an iron block (9032) is embedded in the inner wall of the slot (9031).

4. The high energy efficiency burning test fixture according to claim 1, characterized in that: A hanging ear portion (601) is formed on one side of the test plate (6), and a through hole (602) is formed in the hanging ear portion (601), and the trigger rod (8) passes through the through hole (602) and is threadedly connected thereto.

5. The high energy efficiency burning test fixture according to claim 4, characterized in that: A pressure plate (801) is fixedly provided at the lower end of the trigger rod (8).

6. The high energy efficiency burning test fixture according to claim 1, characterized in that: There are two descending buttons (401), and there is a certain distance between the two descending buttons (401).

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