Device for testing power-on and power-off of circuit board

Abstract

The utility model provides a circuit board power-on and power-off testing device. The circuit board power-on and power-off testing device comprises a test board; the test assembly is arranged on the test bench; the relay is arranged in the test board, the relay is electrically connected with the test assembly, and the relay is further electrically connected with a circuit board; the power supply assembly is arranged in the test bench, and the power supply assembly is electrically connected with the test assembly; wherein the power supply assembly, the test assembly, the relay and the circuit board are electrically connected in sequence to form a test loop. According to the circuit board power-on and power-off testing device provided by the utility model, the circuit board power-on and power-off testing efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board testing, in particular to a testing device for power-on and power-off of a circuit board. Background Art

[0002] The repetitive testing of power-on and power-off of a circuit board can fully expose the stability problems of product design and discover potential hazards in product design. For example, through the repetitive testing of power-on and power-off of a circuit board, it is possible to know the impact of power-on shock on the power supply part of the circuit board, the reliability of power-on reset, and whether the circuit board can return to its normal state after power-on and power-off.

[0003] The existing power-on test and power-off test of circuit boards can only be forced to turn on and off through the countdown of a time-delay relay, and cannot achieve a large number of multiple cycle tests on circuit boards, nor can it achieve the inspection of the startup log of circuit boards, thus making it impossible to determine whether the startup is completed, resulting in low efficiency of power-on and power-off tests on circuit boards. Therefore, there is room for improvement. Summary of the Utility Model

[0004] In view of the above-mentioned disadvantages of the prior art, the purpose of the present utility model is to provide a testing device for power-on and power-off of a circuit board, which improves the testing efficiency of power-on and power-off of the circuit board.

[0005] To solve the above technical problems, the present utility model is realized through the following technical solutions:

[0006] The present utility model provides a testing device for power-on and power-off of a circuit board, including:

[0007] A test bench;

[0008] A test component, arranged on the test bench;

[0009] A relay, arranged inside the test bench, and the relay is electrically connected to the test component and is also electrically connected to the circuit board; and

[0010] A power supply component, arranged inside the test bench, and the power supply component is electrically connected to the test component;

[0011] Wherein, the power supply component, the test component, the relay and the circuit board are electrically connected in sequence to form a test loop.

[0012] In an embodiment of the present utility model, the testing device further includes:

[0013] A carrying platform, arranged on the test bench;

[0014] A fixing component, arranged on the carrying platform, and the circuit board is fixed on the carrying platform through the fixing component;

[0015] A heat dissipation plate, detachably connected to the side wall of the test bench, and the heat dissipation plate is located on one side of the relay.

[0016] In an embodiment of the present invention, the fixing assembly includes:

[0017] A rotating assembly, the rotating assembly includes a limiting plate and a rotating rod, the limiting plate is fixedly connected to the bearing table, and a limiting hole is formed on the limiting plate, the rotating rod passes through the limiting hole and is rotatably connected to the limiting plate;

[0018] A fixing strip, fixedly arranged on the bearing table, and a through hole is arranged on the fixing strip, the rotating rod passes through the through hole;

[0019] A moving strip, parallel to the fixing strip, and a rotating hole is arranged on the moving strip, the moving strip is rotatably connected to the rotating rod through the rotating hole;

[0020] Wherein, threads are arranged on both the rotating hole and the rotating rod, so that the moving strip moves on the bearing table as the rotating rod rotates.

[0021] In an embodiment of the present invention, the fixing assembly includes:

[0022] A rotating assembly, the rotating assembly includes a limiting plate and a rotating rod, the limiting plate is fixedly connected to the bearing table, and a limiting hole is formed on the limiting plate, the rotating rod passes through the limiting hole and is rotatably connected to the limiting plate;

[0023] At least two moving strips, adjacent two of the moving strips are arranged in parallel, a rotating hole is arranged on the moving strip, and the moving strip is rotatably connected to the rotating rod through the rotating hole;

[0024] Wherein, threads are arranged on both the rotating hole and the rotating rod, so that adjacent two of the moving strips move relatively on the bearing table as the rotating rod rotates.

[0025] In an embodiment of the present invention, the threads of the rotating rod maintain the same rotation direction, and the rotation directions of the threads in the rotating holes on adjacent two of the moving strips are arranged in opposite directions.

[0026] In an embodiment of the present invention, the rotation directions of the threads on both sides of the rotating rod are arranged in opposite directions, and the threads in the rotating holes on adjacent two of the moving strips maintain the same rotation direction.

[0027] In an embodiment of the present utility model, a plurality of grooves are provided on one side of the fixed strip and / or the movable strip away from the bearing platform;

[0028] The fixing assembly further includes a plurality of clamping blocks, and the clamping blocks are detachably connected to the fixed strip or the movable strip through the grooves; the other end of the clamping block protrudes from the fixed strip and / or the movable strip to clamp the circuit board.

[0029] In an embodiment of the present utility model, the number of the grooves on the fixed strip and the movable strip is the same and they are evenly arranged.

[0030] In an embodiment of the present utility model, the testing assembly includes:

[0031] A tester, fixedly connected to the testing platform, and the tester is electrically connected to the power supply assembly and the relay respectively;

[0032] A connecting wire, its first end is electrically connected to the relay, the second end is connected to the tester, and the third end is detachably connected to the circuit board to realize communication between the tester and the circuit board, and power-on and power-off of the circuit board;

[0033] A display screen, electrically connected to the tester.

[0034] In an embodiment of the present utility model, the testing device further includes a support frame, and the support frame is fixedly arranged on the testing platform to support the connecting wire.

[0035] As described above, the present utility model provides a testing device for power-on and power-off of a circuit board, which sets a tester, a relay, a connecting wire and a circuit board to be electrically connected in sequence to form a test loop for the circuit board, realizes repeated testing of power-on and power-off of the circuit board, improves the testing efficiency. Further, by setting the independent connection of the tester and the connecting wire, it is convenient for the tester to obtain the power-on boot log and the power-off shutdown log of the circuit board in real time and display them on the display screen, which can realize the visualization of the circuit board testing and further improve the testing efficiency of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0037] Figure 1 It is a schematic diagram of the overall structure of a testing device for power-on and power-off of a circuit board of the present utility model;

[0038] Figure 2 Schematic diagram of the overall structure of the test device in another embodiment of the present utility model;

[0039] Figure 3 is Figure 1 partial structure schematic diagram in;

[0040] Figure 4 is Figure 1 another partial structure schematic diagram in.

[0041] Description of component labels:

[0042] 100, test device;

[0043] 110, test bench; 111, base;

[0044] 120, carrier table; 130, fixing component;

[0045] 131, rotating component; 1311, limiting plate; 1312, rotating rod; 1313, limiting hole;

[0046] 132, fixing bar;

[0047] 133, moving bar; 1331, rotating hole; 1332, groove; 134, clamping block;

[0048] 140, test component; 141, tester; 142, connecting wire; 143, display screen; 144, connecting frame; 145, plug-in frame; 146, signal wire;

[0049] 150, relay; 160, power supply component;

[0050] 170, heat dissipation plate; 180, support frame. Detailed implementation manners

[0051] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0052] Please refer to Figures 1 to 4 , the present utility model provides a test device for power-on and power-off of a circuit board, which can be applied to perform a large number of repeated power-on tests and power-off tests on the circuit board and automatically determine whether the circuit board has completed booting, so as to improve the test efficiency of power-on and power-off of the circuit board.

[0053] Please refer toFigure 1 For example, the test device 100 may include, but is not limited to, a test bench 110, a carrier 120, a fixing component 130, a test component 140, a relay 150, and a power supply component 160. Among them, the shape of the test bench 110 may be a cuboid, a cube, or other shapes. That is, the shape of the test bench 110 may not be specifically limited. Multiple bases 111 may be formed at the bottom end of the test bench 110 for supporting the test bench 110. The base 111 may be in the shape of a cylinder, a cuboid, or a cube. However, it is not limited thereto and may also be other shapes, that is, the shape of the base 111 may not be specifically limited. Two, four, or eight bases 111 may be provided. However, it is not limited thereto, and other numbers of bases 111 may also be provided, that is, the number of bases 111 may be determined according to the specific shape of the test bench 110. In addition, the base 111 may also be a lifting mechanism for lifting the test bench 110. For example, the base 111 may be a jack structure.

[0054] For example, please refer to Figure 1 where the test bench 110 is in the shape of a cuboid, the base 111 is in the shape of a cylinder, and four bases 111 may be respectively provided at the four corner positions at the bottom end of the test bench 110 for supporting the test bench 110.

[0055] Please refer to Figure 1 The carrier 120 may be disposed on the test bench 110, and the shape of the carrier 120 may not be specifically limited. Among them, the carrier 120 may be fixedly connected to the test bench 110, and the carrier 120 may be in the shape of a cuboid, a cube, or a disc.

[0056] Please refer to Figure 1 and Figure 2 The fixing component 130 may be disposed on the carrier 120, and the circuit board may be fixed to the carrier 120 through the fixing component 130. Among them, the fixing component 130 may include, but is not limited to, a rotating component 131, a fixing bar 132, and a moving bar 133.

[0057] Please refer to Figure 1 and Figure 2 The rotating component 131 may be fixedly disposed on the carrier 120, and the rotating component 131 may include, but is not limited to, a limiting plate 1311 and a rotating rod 1312. Among them, the limiting plate 1311 may be fixedly connected to the carrier 120, and a limiting hole 1313 may be formed on the limiting plate 1311. The rotating rod 1312 may pass through the limiting hole 1313 and be rotatably connected to the limiting plate 1311.

[0058] Further, one, two, or any other number of limiting plates 1311 can be provided. The shape of the limiting plate 1311 is not limited as long as it can facilitate the support of the rotating rod 1312 and limit the moving strip 133.

[0059] Furthermore, the fixing strip 132 can be fixedly arranged on the carrying platform 120, and through holes can be provided on the fixing strip 132. The rotating rod 1312 can pass through the through holes. The moving strip 133 can be parallel to the fixing strip 132, and a rotating hole 1331 can be provided on the moving strip 133. The moving strip 133 can be rotatably connected to the rotating rod 1312 through the rotating hole 1331.

[0060] Specifically, threads can be provided on both the rotating hole 1331 and the rotating rod 1312, and the rotating hole 1331 and the rotating rod 1312 can be in threaded cooperation so that the moving strip 133 moves on the carrying platform 120 as the rotating rod 1312 rotates.

[0061] Please refer to Figure 1 and Figure 2 , in addition, a plurality of grooves 1332 can be provided on one side of the fixing strip 132 and / or the moving strip 133 away from the carrying platform 120. The fixing assembly 130 can further include a plurality of clamping blocks 134, and the clamping blocks 134 can be detachably connected to the fixing strip 132 or the moving strip 133 through the grooves 1332. The other end of the clamping block 134 can protrude from the fixing strip 132 and / or the moving strip 133 to clamp the circuit board.

[0062] Please refer to Figure 1 and Figure 2 , the number of grooves 1332 on the fixing strip 132 and the moving strip 133 can be set to be the same and are evenly arranged. However, this is not limited thereto, and the grooves 1332 on the fixing strip 132 and the moving strip 133 can also be irregularly arranged. A symmetry plane can be formed between the fixing strip 132 and the moving strip 133, and the perpendicular line between the fixing strip 132 and the moving strip 133 is perpendicular to the symmetry plane. The grooves 1332 on the fixing strip 132 and the grooves 1332 on the moving strip 133 are arranged in mirror symmetry according to the symmetry plane.

[0063] For example, please refer to Figure 2, when a fixed bar 132 and a movable bar 133 are provided on the carrier 120, and the movable bar 133 is parallel to the fixed bar 132. A limiting plate 1311 can be formed on the side of the movable bar 133 away from the fixed bar 132, and the limiting plate 1311 can be fixedly arranged at the edge of the carrier 120 to limit the movable bar 133. A limiting hole 1313 can be formed on the limiting plate 1311, a rotating hole 1331 can be formed on the movable bar 133, and the central axis of the rotating hole 1331 is the same as the central axis of the limiting hole 1313.

[0064] Further, threads can be provided on the rotating rod 1312, and the rotating rod 1312 can sequentially pass through the limiting hole 1313, the rotating hole 1331 and the through hole on the fixed bar 132. The rotating hole 1331 and the rotating rod 1312 can be in threaded cooperation, and the diameter of the limiting hole 1313 and the diameter of the through hole on the fixed bar 132 are both larger than the diameter of the rotating rod 1312.

[0065] Specifically, in the direction from the rotating rod 1312 of the limiting plate 1311 towards the movable bar 133, when the rotating rod 1312 is rotated clockwise, the movable bar 133 moves towards the direction where the fixed bar 132 is located to reduce the distance between the fixed bar 132 and the movable bar 133. When the rotating rod 1312 is rotated counterclockwise, the movable bar 133 moves away from the direction where the fixed bar 132 is located to increase the distance between the fixed bar 132 and the movable bar 133.

[0066] Furthermore, nine grooves 1332 are respectively provided on the sides of the fixed bar 132 and the movable bar 133 away from the carrier 120. The fixing assembly 130 can further include four clamping blocks 134. The clamping blocks 134 can be in the shape of a cylinder, and the four clamping blocks 134 can be evenly divided into two groups. The four clamping blocks 134 can be detachably connected to the fixed bar 132 and the movable bar 133 respectively through the grooves 1332. That is, two clamping blocks 134 can be provided on the fixed bar 132, and two clamping blocks 134 can also be provided on the movable bar 133. In addition, the other end of each clamping block 134 can protrude from the fixed bar 132 and the movable bar 133 to clamp the circuit board. A buffer ring can be sleeved on the outer surface of the clamping block 134 protruding from the fixed bar 132 and the movable bar 133 to buffer and protect the circuit board.

[0067] It should be further noted that when it is necessary to limit and fix the circuit board, the circuit board can be initially fixed by the two clamping blocks 134 on the fixing bar 132, and then the moving bar 133 can be moved and adjusted according to the width of the circuit board. That is, the movement of the moving bar 133 can be realized by rotating the rotating rod 1312. When the moving bar 133 reaches the preset position, the rotation of the rotating rod 1312 is stopped, and the distance between the two clamping blocks 134 on the moving bar 133 is adjusted to completely fix the circuit board.

[0068] Please refer to Figure 1 and Figure 3 , when at least two moving bars 133 are provided, at least two moving bars 133 can be arranged on the bearing platform 120, and two adjacent moving bars 133 can be arranged in parallel with each other. A rotating hole 1331 can be provided on each moving bar 133, the rotating rod 1312 can pass through the rotating hole 1331, and the moving bar 133 can be rotatably connected to the rotating rod 1312 through the rotating hole 1331. Among them, threads are provided on both the rotating hole 1331 and the rotating rod 1312, so that two adjacent moving bars 133 move relative to each other on the bearing platform 120 as the rotating rod 1312 rotates.

[0069] Furthermore, the threads of the rotating rod 1312 can maintain the same rotation direction, and the rotation directions of the threads in the rotating holes 1331 on two adjacent moving bars 133 can be set in the opposite direction, so that when the rotating rod 1312 is rotated in the preset direction, two adjacent moving bars 133 can approach each other, and when the rotating rod 1312 is rotated in the opposite direction of the preset direction, two adjacent moving bars 133 can move away from each other. However, this is not limited thereto, and the rotation directions of the threads on both sides of the rotating rod 1312 can also be set in the opposite direction, then the threads in the rotating holes 1331 on two adjacent moving bars 133 can maintain the same rotation direction. In addition, a plurality of grooves 1332 can be provided on the side of the moving bar 133 away from the bearing platform 120, and the number of grooves 1332 on two adjacent moving bars 133 is the same and is evenly arranged.

[0070] For example, please refer to Figure 1 and Figure 3 , two moving bars 133 are provided, the two moving bars 133 are arranged in parallel with each other, and a rotating hole 1331 can be provided on each moving bar 133, and the moving bar 133 can be rotatably connected to the rotating rod 1312 through the rotating hole 1331.

[0071] In addition, there are also two limit plates 1311, and the two limit plates 1311 can be fixedly arranged on the bearing platforms 120 on both sides of the two moving bars 133 respectively. A limit hole 1313 is formed on the limit plate 1311, a rotation hole 1331 is formed on the moving bar 133, and the central axis of the limit hole 1313 is the same as the central axis of the rotation hole 1331. The diameter of the limit hole 1313 is larger than the diameter of the rotating rod 1312.

[0072] Further, the two limit holes 1313 can be respectively defined as a first limit hole and a second limit hole, and the two rotation holes 1331 can be respectively defined as a first rotation hole and a second rotation hole. The rotating rod 1312 can sequentially pass through the first limit hole, the first rotation hole, the second rotation hole and the second limit hole. It can be set that the threads on the rotating rod 1312 maintain the same rotation direction, and the rotation directions of the internal threads in the first rotation hole and the second rotation hole are opposite.

[0073] Furthermore, in the direction from the operable end of the rotating rod 1312 towards the moving bar 133, when the rotating rod 1312 is rotated clockwise, the two moving bars 133 on the rotating rod 1312 can approach each other to reduce the distance between the two moving bars 133. When the rotating rod 1312 is rotated counterclockwise, the two moving bars 133 on the rotating rod 1312 can move away from each other to increase the distance between the two moving bars 133. When the rotation directions of the threads at both ends of the rotating rod 1312 are arranged in the opposite direction, the threads at both ends of the rotating rod 1312 can extend from the center of the rotating rod 1312 to both ends or extend from both ends of the rotating rod 1312 to the center. Specifically, the threads on the rotating rod 1312 can expand from its central axis to both ends, with a right-handed thread on one side and a left-handed thread on the other side. The threads on the rotating rod 1312 can also start from both ends and merge towards the center in opposite rotation directions.

[0074] It is worth further explaining that the two moving bars 133 have the same length, and nine grooves 1332 can be arranged on each moving bar 133, and the nine grooves 1332 can be evenly arranged. The clamping block 134 can be in a cylindrical shape, and there can be four clamping blocks 134. Two clamping blocks 134 are arranged on each moving bar 133. The clamping block 134 can be detachably connected to the moving bar 133 through the groove 1332, and the other end of the clamping block 134 can protrude from the moving bar 133. A buffer ring is sleeved on the outer surface of the clamping block 134 protruding from the moving bar 133, and the buffer ring is made of rubber.

[0075] It is further worth noting that when it is necessary to limit and fix the circuit board, the distance between the two clamping blocks 134 on a movable bar 133 can be adjusted according to the width of the circuit board first to fix one end of the circuit board. Finally, according to the length of the circuit board, the distance between adjacent movable bars 133 can be adjusted by rotating the rotating rod 1312 to determine the length direction of the circuit board. Finally, the distance between the two clamping blocks 134 on the other movable bar 133 can be adjusted to completely fix the circuit board.

[0076] Please refer to Figure 3 and Figure 4 , the test component 140 may include, but is not limited to, a tester 141, a connection line 142, and a display screen 143. Among them, the tester 141 may be fixedly connected to the test bench 110, and the tester 141 may be electrically connected to the relay 150 and the power supply component 160 respectively to control the opening and closing of the relay 150. The tester 141 may be a computer terminal or an operation terminal with a Central Processing Unit (CPU), used to control the power-on and power-off of the circuit board by controlling the opening and closing of the relay 150. The tester 141 is also used to obtain the boot log and shutdown log of the circuit board and display them on the display screen 143 to facilitate the immediate determination of the working state of the circuit board.

[0077] The connection line 142 may be provided with at least three ports. When the connection line 142 is provided with three ports, two of the ports of the connection line 142 may be inside the tester 141, and the third port may extend from the inside of the tester 141 to the outside of the tester 141. When the connection line 142 is provided with three ports, its first end may be electrically connected to the relay 150, the second end is connected to the tester 141, and the third end is detachably connected to the circuit board to realize the communication between the tester 141 and the circuit board, and the power-on and power-off of the circuit board.

[0078] Furthermore, the display screen 143 may be electrically connected to the tester 141 to receive the boot log and shutdown log obtained by the tester 141 from the circuit board and display them, so as to facilitate the immediate determination of whether the circuit board is powered on successfully. The electrical connection method between the tester 141 and the display screen 143 may be realized through an intermediate medium. For example, the intermediate medium may include, but is not limited to, a connection frame 144 and a plug-in frame 145.

[0079] Further, the connection frame 144 can be fixedly connected to the tester 141, and a signal line 146 is formed inside the connection frame 144. The signal line 146 can be communicatively connected to the tester 141 to achieve data transmission between the tester 141. The insertion frame 145 can be fixedly connected to the display screen 143, and the display screen 143 can be communicatively connected to the tester 141 through the contact between the insertion frame 145 and the signal line 146. Specifically, when the insertion frame 145 is inserted into the connection frame 144, the inner wall of the insertion frame 145 can contact the signal line 146 to achieve the communicative connection between the insertion frame 145 and the tester 141.

[0080] Please refer to Figure 3 and Figure 4 In addition, when the display screen 143 and the tester 141 are electrically connected through the insertion frame 145 and the connection frame 144, to ensure the stable display of the display screen 143, a threaded groove can be provided on the insertion frame 145, and a corresponding threaded hole can be provided on the connection frame 144. By setting a bolt to pass through the threaded hole on the connection frame 144 and threadedly cooperate with the threaded groove, the connection between the connection frame 144 and the insertion frame 145 can be achieved, thereby ensuring the display effect of the display screen 143.

[0081] Please refer to Figure 3 and Figure 4 The relay 150 can be provided inside the test bench 110, and the relay 150 can be electrically connected to the test component 140. The relay 150 is also electrically connected to the circuit board to power on and power off the circuit board under the control of the test component 140. Specifically, one end of the relay 150 can be electrically connected to the tester 141, the other end of the relay 150 can be electrically connected to the connection line 142, and one end of the connection line 142 can be electrically connected to the circuit board to power on and power off the circuit board under the enable of the tester 141.

[0082] Please refer to Figure 3 and Figure 4 The power supply component 160 can be provided inside the test bench 110, and the power supply component 160 is electrically connected to the test component 140. Among them, the power supply component 160 can be a power interface, that is, power supply can be achieved by plugging in an external power supply. However, this is not limited thereto, and the power supply component 160 can also be a power supply device to directly supply power to the test component 140. In addition, the power supply component 160, the test component 140, the relay 150, and the circuit board can be electrically connected in sequence to form a test loop.

[0083] For example, the power supply component 160 is a power interface, and the power supply component 160 is electrically connected to the tester 141. The tester 141 can be electrically connected to the relay 150, and the relay 150 can be electrically connected to the connection line 142. When the connection line 142 is inserted into the circuit board, the connection line 142 is electrically connected to the circuit board to form a test loop. Among them, the circuit between the power supply component 160 and the tester 141 can always remain conductive. The opening and closing of the relay 150 can be controlled by the tester 141 to implement power-on testing or power-off testing of the circuit board. Specifically, the tester 141 can issue a power-on repeat instruction and a power-off repeat instruction to the relay 150 to implement the opening and closing of the relay 150. The tester 141 can directly obtain the boot log when the circuit board is powered on and the shutdown log when the circuit board is powered off, and display them on the display screen 143, so as to be able to immediately observe the working state of the circuit board and improve the efficiency of power-on testing and power-off testing of the circuit board.

[0084] Please refer to Figure 3 and Figure 4 , the test device 100 may further include, but is not limited to, a heat dissipation plate 170 and a support frame 180. Among them, the heat dissipation plate 170 can be detachably connected to the test bench 110, and the heat dissipation plate 170 can be located on one side of the relay 150 to dissipate heat from the relay 150, thereby ensuring the working effect of the relay 150. In addition, the connection relationship between the heat dissipation plate 170 and the test bench 110 may not be specifically limited. Specifically, the heat dissipation plate 170 can be detachably connected to the test bench 110 by bolts.

[0085] Please refer to Figure 3 and Figure 4 , the support frame 180 can be fixedly arranged on the test bench 110 to support the connection line 142. Among them, the support frame 180 can be in the shape of a Y, or the top can be in the shape of a circle and the bottom can be in the shape of a cuboid. However, it is not limited to this, and the support frame 180 can also be arranged in other shapes.

[0086] Please refer to Figure 1 , Figure 3 and Figure 4, in an embodiment of the present utility model, when repeated power-on and power-off tests need to be performed on a circuit board, the rotating rod 1312 can be rotated counterclockwise to gradually increase the distance between the two moving strips 133 on the rotating rod 1312 until the distance between the two moving strips 133 is greater than the length of the circuit board. Subsequently, the circuit board can be placed on one of the moving strips 133 of the carrier 120, and the distance between the two clamping blocks 134 can be adjusted according to the width of the circuit board to achieve preliminary fixation of the circuit board. Then, the rotating rod 1312 can be rotated clockwise to make the two moving strips 133 move towards each other and reduce the distance between the two moving strips 133 until the other moving strip 133 contacts the circuit board, and then stop rotating the rotating rod 1312. Subsequently, the distance between the two clamping blocks 134 on this moving strip 133 can be adjusted to achieve final fixation of the circuit board.

[0087] Furthermore, after the circuit board is fixed, the interface of the connection line 142 can be plugged into the circuit board, and the power-on repetition times and power-off repetition times of the circuit board can be set through the tester 141, so as to control the relay 150 to perform repeated power-on tests and repeated power-off tests on the circuit board. In addition, the tester 141 can also obtain the boot log when the circuit board is powered on and the shutdown log when the circuit board is powered off to determine the completion of each power-on and power-off of the circuit board, thereby improving the test efficiency of the circuit board.

[0088] In summary, through a test device for power-on and power-off of a circuit board provided by the present utility model, a tester, a relay, a connection line, and a circuit board are electrically connected in sequence to form a test circuit for the circuit board, so as to realize repeated tests of power-on and power-off of the circuit board and improve the test efficiency. Further, by setting the independent connection of the tester and the connection line, it is convenient for the tester to obtain the boot log when the circuit board is powered on and the shutdown log when the circuit board is powered off in real time and display them on the display screen, which can realize the visualization of the circuit board test and further improve the test efficiency of the circuit board.

[0089] In the description of this specification, the descriptions referring to terms such as "this embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0090] The embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present utility model, so that those skilled in the relevant art can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A circuit board power-on and power-off testing device, characterized in that: include: Test bench; A test assembly, arranged on the test bench; A relay is disposed in the test bench, and the relay is electrically connected to the test assembly, and the relay is also electrically connected to the circuit board; as well as A power supply component is disposed in the test bench and is electrically connected to the test component; The power supply component, the test component, the relay and the circuit board are electrically connected in sequence to form a test loop.

2. The circuit board power-on and power-off testing device according to claim 1, characterized in that: The testing device also includes: A bearing platform, arranged on the test platform; A fixing assembly is disposed on the carrying platform, and the circuit board is fixed on the carrying platform by the fixing assembly; and A heat sink is detachably connected to the side wall of the test bench, and the heat sink is located on one side of the relay.

3. The circuit board power-on and power-off testing device according to claim 2, characterized in that: The fixing assembly comprises: A rotating assembly, the rotating assembly comprising a limit plate and a rotating rod, the limit plate is fixedly connected to the bearing platform, a limit hole is formed on the limit plate, the rotating rod passes through the limit hole and is rotatably connected to the limit plate; A fixing bar, fixedly disposed on the bearing platform, and provided with a through hole, through which the rotating rod passes; A moving bar, which is parallel to the fixed bar, and is provided with a rotating hole, through which the moving bar is rotatably connected to the rotating rod; Wherein, the rotating hole and the rotating rod are both provided with threads, so that the moving bar moves on the bearing platform as the rotating rod rotates.

4. The circuit board power-on and power-off testing device according to claim 2, characterized in that: The fixing assembly comprises: A rotating assembly, the rotating assembly comprising a limit plate and a rotating rod, the limit plate is fixedly connected to the bearing platform, a limit hole is formed on the limit plate, the rotating rod passes through the limit hole and is rotatably connected to the limit plate; At least two moving bars, two adjacent moving bars are arranged parallel to each other, a rotating hole is provided on the moving bar, and the moving bar is rotatably connected to the rotating rod through the rotating hole; Wherein, the rotating hole and the rotating rod are both provided with threads, so that two adjacent moving bars can move relatively on the bearing platform as the rotating rod rotates.

5. The circuit board power-on and power-off testing device according to claim 4, characterized in that: The threads of the rotating rod maintain the same rotation direction, and the rotation directions of the threads in the rotating holes on two adjacent moving bars are opposite.

6. The circuit board power-on and power-off testing device according to claim 4, characterized in that: The rotation directions of the threads on both sides of the rotating rod are opposite, and the threads in the rotating holes on two adjacent moving bars maintain the same rotation direction.

7. The circuit board power-on and power-off testing device according to claim 3, characterized in that: A plurality of grooves are provided on a side of the fixed bar and / or the movable bar away from the carrying platform; The fixing assembly also includes a plurality of clamping blocks, which are detachably connected to the fixing bar or the moving bar through the groove; the other end of the clamping block protrudes from the fixing bar and / or the moving bar to clamp the circuit board.

8. The circuit board power-on and power-off testing device according to claim 7, characterized in that: The number of the grooves on the fixed bar and the movable bar is the same and they are evenly arranged.

9. The circuit board power-on and power-off testing device according to claim 1, characterized in that: The test components include: A tester, fixedly connected to the test bench, the tester being electrically connected to the power supply assembly and the relay respectively; A connecting wire, a first end of which is electrically connected to the relay, a second end of which is connected to the tester, and a third end of which is detachably connected to the circuit board, so as to realize communication between the tester and the circuit board, and power on and off of the circuit board; A display screen is electrically connected to the tester.

10. The circuit board power-on and power-off testing device according to claim 1, characterized in that: The testing device further comprises a supporting frame, which is fixedly arranged on the testing table to support the connecting wire.

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