Bare board high-voltage off-line test equipment

Abstract

The utility model relates to the technical field of bare board high-voltage testing, in particular to bare board high-voltage off-line testing equipment, which is used for carrying out high-voltage testing on a bare board integrated with a plurality of workpieces and comprises a lower fixing plate and an upper fixing plate arranged above the lower fixing plate. A copper plate and an insulation test carrier elastically butted on the copper plate are mounted on the lower fixing plate, and a bare board positioning area for positioning and placing a bare board and a workpiece test window formed in the bare board positioning area are arranged on the insulation test carrier; a plurality of workpiece side part contact grooves corresponding to the workpiece test windows and insulating bottom supports arranged in the workpiece side part contact grooves are formed on the copper plate; the copper plate material with excellent conductivity is used as the low terminal after being made, and the copper plate is skillfully contacted with the side part of the workpiece only by combining the workpiece side part contact groove arranged on the copper plate with the insulating bottom support, so that the structure can ensure good electrical connection between the low terminal and the periphery of the bare board.

Description

TECHNICAL FIELD

[0001] The utility model relates to bare board high pressure test technical field especially is related to a bare board high pressure off line test equipment. BACKGROUND

[0002] The bare board high pressure off line test equipment is an instrument for high pressure test of insulating plate-shaped material, which has high pressure test function and can output specific high voltage signal to test the insulation performance and voltage resistance performance of the bare board, such as detecting whether short circuit or leakage will occur under high voltage of 1000V, 2000V, etc. to determine whether it can work safely and stably under the specified high voltage environment. The test equipment does not need to be connected with other equipment or system and can test the bare board independently, which makes the test process more flexible and can detect the bare board under different conditions without interference from other equipment. In addition, it is also equipped with perfect safety protection function, such as overvoltage protection, overcurrent protection, leakage protection, etc. to cut off the power supply in time when abnormal conditions occur during the test, such as voltage exceeding the set value, current being too large, etc. to protect the safety of the test personnel and the test equipment itself from damage.

[0003] The existing bare board is cut to make multiple PCB panel workpieces connected together, each workpiece has a main body part, a main pin formed at one end of the main body part, and a secondary pin formed at the other end of the main body part. The high voltage test needs to be performed on the circumferential side of the main body part, the main pin position and the secondary pin position. The traditional test fixture is basically a needle bed type fixture structure, which is generally composed of an upper needle plate, a lower needle plate and a probe. It is not convenient to perform high voltage test on the axis of the main body part. Therefore, it is necessary to propose an improved technical scheme to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a technical scheme that can solve the above problems.

[0005] A bare board high pressure off line test equipment for high voltage test of a bare board with multiple workpieces integrated therein, comprising a lower fixed plate and an upper fixed plate arranged above the lower fixed plate, a copper plate and an insulating test carrier elastically butted against the copper plate are installed on the lower fixed plate, a bare board positioning area for positioning and placing the bare board and a workpiece test window opened on the bare board positioning area are arranged on the insulating test carrier, a plurality of workpiece side contact grooves corresponding to the workpiece test window are formed on the copper plate, and an insulating support is arranged in the workpiece side contact groove.

[0006] The upper fixed plate is provided with a lower pressing power unit, and a lower pressing plate for pushing the insulation test carrier to overcome the elastic force and move downward is connected with the lower pressing power unit in a power manner.

[0007] Preferably, a plurality of elastic components uniformly acting on the insulation test carrier are arranged on the lower fixed plate, and the insulation test carrier is elastically butted on the copper plate through the elastic components, wherein the elastic components comprise a first guide rod fixedly connected to the lower fixed plate, a guide slider fixed to the insulation test carrier and sleeved on the first guide rod, a compression spring sleeved on the first guide rod and abutting between the lower fixed plate and the guide slider, and a limiting piece fixedly connected to the upper end of the first guide rod and used for limiting the guide slider.

[0008] Preferably, an insulation wall for isolating the workpiece side contact groove is formed on the insulation base, and the insulation wall is used for isolating the side of the workpiece which is not required to be tested from the workpiece side contact groove.

[0009] Preferably, a first positioning pin for positioning the bare board is arranged on the bare board positioning area.

[0010] Preferably, a second positioning pin is arranged on the copper plate, and a first positioning sleeve for butting with the second positioning pin is arranged on the insulation test carrier.

[0011] Preferably, a third positioning pin is arranged on the lower pressing plate, and a second positioning sleeve for butting with the third positioning pin is arranged on the insulation test carrier.

[0012] Preferably, a limiting block for abutting against the insulation test carrier is arranged on the lower fixed plate, and the insulation test carrier is limited to the lowest pressing position through the limiting block.

[0013] Preferably, a guide block for abutting against the periphery of the bare board is arranged on the insulation test carrier around the bare board positioning area.

[0014] Preferably, a second guide rod is connected at the corner position between the upper fixed plate and the lower fixed plate, a sliding block of the second guide rod is connected with a push plate, the lower pressing plate is arranged at the lower end of the push plate, and the lower pressing power unit is connected with the push plate in a power manner.

[0015] Preferably, the utility model further comprises a cabinet and a cabinet hinged to the cabinet, a lock catch for limiting the turning of the cabinet and the cabinet is arranged between the two sides of the cabinet and the cabinet, the lower fixed plate is installed in the cabinet, an operation table is further arranged at the front of the cabinet, and a safety light curtain is arranged at the front of the cabinet.

[0016] Compared with the prior art, the utility model has the beneficial effects that:

[0017] By adopting the copper plate material with excellent conductive performance to make the low terminal, and by setting the workpiece side contact groove on the copper plate and combining the insulating support, the structure can ensure that the electrical connection between the low terminal and the bare plate is good, the signal transmission is stable and the loss is small, the test signal can be accurately introduced into the bare plate, and the feedback signal of the bare plate can be accurately transmitted to the test equipment, thereby ensuring the accuracy of the test result.

[0018] By cooperating the insulating test carrier with the copper plate, and by combining the pressing power structure and the pressing plate, the insulation protection before the test can be effectively realized, the direct contact between the bare plate and the copper plate or the probe during the positioning of the bare plate can be prevented, and the safety of the operator during the placement of the bare plate can be ensured.

[0019] By setting the bare plate positioning area and the workpiece test window formed in the bare plate positioning area, the structure design is simple, the plurality of workpiece side contact grooves on the copper plate can be connected at the same time, and therefore the bare plate integrated with the plurality of workpieces can be tested at the same time, and the test efficiency is effectively improved.

[0020] The additional aspects and advantages of the present application will be partially given in the following description, and some will become obvious from the following description, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0022] Figure 1 is a structure schematic view of a bare plate of the present application;

[0023] Figure 2 is a connection structure schematic view of a circuit part in a test stage of the present application;

[0024] Figure 3 is a structure schematic view of the present application;

[0025] Figure 4 is another structure schematic view of the present application;

[0026] Figure 5 is a split structure schematic view of a copper plate and an insulating test carrier in the present application;

[0027] Figure 6 is a structure schematic view of the present application Figure 5 at A.

[0028] Figure 7 is the structure diagram of the lower pressing plate of the utility model.

[0029] The reference signs and names in the drawing are as follows:

[0030] bare board 1, workpiece 2, lower fixed plate 10, limiting block 11, upper fixed plate 20, lower pressing power unit 21, lower pressing plate 22, main pin probe array 23, secondary pin probe array 24, third positioning pin 25, second guide rod 26, push plate 27, copper plate 30, workpiece side contact groove 31, insulating support 32, insulating wall 33, second positioning pin 34, insulation test carrier 40, bare board positioning area 41, workpiece test window 42, first positioning sleeve 44, second positioning sleeve 45, guide block 46, elastic assembly 50, first guide rod 51, guide sliding block 52, compression spring 53, limiting piece 54, cabinet 60, lock catch 61, operation table top 62, cabinet 70, safety light curtain 71. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be described clearly and completely below, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0032] Please refer to Figures 1-7 , in the embodiments of the utility model, as Figure 1 shown, it is the bare board 1 structure integrated with 10 workpieces (2UUT1-UUT10), the workpiece 2 has the ring structure in the middle, the secondary pin structure at the front end and the main pin structure at the rear end, a kind of bare board high-voltage offline test equipment is set up, for the bare board 1 of 10 workpieces 2 integrated in one is carried out high-voltage test, its specific implementation is as follows:

[0033] including lower fixed plate 10 and the upper fixed plate 20 being set above lower fixed plate 10, copper plate 30 and insulation test carrier 40 elastically butted on copper plate 30 are installed on lower fixed plate 10, bare board positioning area 41 for positioning bare board 1 is set on insulation test carrier 40, and workpiece test window 42 is opened on bare board positioning area 41, a plurality of workpiece side contact grooves 31 corresponding to workpiece test window 42 and insulating support 32 being set in workpiece side contact groove 31 are formed on copper plate 30, workpiece side contact groove 31 is used to contact with the side of workpiece 2, to reach the purpose of high-voltage test to the side of workpiece 2;

[0034] A downward pressure power unit 21 is installed on the upper fixed plate 20. The downward pressure power unit 21 is powered to a downward pressure plate 22 for pushing the insulation test carrier 40 downward against the elastic force. The insulation test carrier 40 moves downward against the elastic force so that the contact groove 31 on the side of the workpiece is exposed from the workpiece test window 42 to the side of the workpiece 2, so that the bare board 1 will not contact the copper plate 30 when the operator places it. The downward pressure plate 22 is also provided with a main pin probe array 23 and a secondary pin probe array 24 that are connected to the workpiece 2. The main pin probe array 23 is connected to the main pin structure of 10 workpieces 2, and the secondary pin probe array 24 is connected to the secondary pin structure of 10 workpieces 2.

[0035] The working principle is as follows: The operator places the bare board 1 from the previous station onto the bare board positioning area 41 of the insulation test carrier 40, then presses the start button. The downward power unit 21 operates, pushing the downward pressure plate 22 against the insulation test carrier 40, causing the insulation test carrier 40 to move downward. This causes the workpiece side contact groove 31 on the copper plate 30 to be exposed through the workpiece test window 42 and then docked with the side of the workpiece 2. The main pin probe array 23 docks with the main pin structure of 10 workpieces 2, and the secondary pin probe array 24 docks with the secondary pin structure of 10 workpieces 2. After docking, the test begins using an AC / DC / infrared withstand voltage tester. Figure 2 As shown, the secondary pins of workpieces 2UUT1-2UUT8 are connected to the CH1-CH8 terminals of the AC / DC / infrared withstand voltage tester via the secondary pin probe array 24, and the secondary pins of workpieces 2UUT9 and 2UUT10 are connected to the CH9 terminal of the AC / DC / infrared withstand voltage tester via the main pin probe array 23. The main pins of workpieces 2UUT1 and 2UUT10, as well as the copper plate 30, are connected to the low terminal of the AC / DC / infrared withstand voltage tester via the main pin probe array 23. The CH1-CH9 terminals are set as high terminals, and 10 workpieces 2 are tested simultaneously. Since workpieces 2UUT9 and 2UUT10 are both connected to the CH9 terminal, if the test fails, workpieces 2UUT9 and 2UUT10 need to be tested separately again to identify the unqualified workpieces 2. After all 10 workpieces 2 have been tested, the pressure-reducing power unit 21 will drive the pressure plate 22 to rise for a reset operation, and the operator will remove the bare board 1.

[0036] Through the technical scheme, the copper plate 30 material with excellent conductive performance is used to make the low terminal, and the workpiece side contact groove 31 is arranged on the copper plate 30 and combined with the insulating support 32 to make the copper plate 30 only contact the side of the workpiece 2. The structure can ensure that the electrical connection between the low terminal and the bare board 1 is good, the signal transmission is stable, the loss is small, the test signal can be accurately introduced into the bare board 1, and the feedback signal of the bare board 1 can be accurately transmitted to the test equipment, thereby ensuring the accuracy of the test result.

[0037] By cooperation of the insulating test carrier 40 and the copper plate 30, in combination with the downward pressing power structure and the downward pressing plate 22, insulation protection can be effectively performed before testing, so that the bare board 1 is prevented from being directly contacted with the copper plate 30 or the probe when the bare board 1 is positioned, and the safety of the operator during the process of placing the bare board 1 is ensured.

[0038] By arranging the bare board positioning area 41 and the workpiece test window 42 opened on the bare board positioning area 41, the structure design is simple, the plurality of workpiece side contact grooves 31 on the copper plate 30 can be simultaneously connected, and thus the bare board 1 integrated with a plurality of workpieces 2 can be simultaneously subjected to high-voltage offline testing, thereby effectively improving the test efficiency.

[0039] As shown in Figures 5-6 In the above specific embodiment, the insulating test carrier 40 elastically connected to the copper plate 30 generally adopts a traditional elastic expansion structure to be connected to the lower fixed plate 10. Specifically, a plurality of elastic components 50 uniformly acting on the insulating test carrier 40 are arranged on the lower fixed plate 10. The insulating test carrier 40 is elastically connected to the copper plate 30 through the elastic components 50. The elastic components 50 include a first guide rod 51 fixedly connected to the lower fixed plate 10, a guide slider 52 fixedly connected to the insulating test carrier 40 and guided to be sleeved on the first guide rod 51, a compression spring 53 sleeved on the first guide rod 51 and abutting between the lower fixed plate 10 and the guide slider 52, and a limiting piece 54 fixedly connected to the upper end of the first guide rod 51 and used for limiting the guide slider 52. The structure design is simple and practical, the insulating test carrier 40 can be elastically lifted to a high position in an initial state, the copper plate 30 is located below the workpiece test window 42, and thus the bare board 1 is prevented from being contacted with the copper plate 30 when the bare board 1 is placed.

[0040] As shown in Figure 1 and Figure 5 As shown in

[0041] As shown in Figures 5-7As shown, in order to make the docking between structures more accurate, the first positioning pin 43 for positioning the bare board 1 is arranged on the bare board positioning area 41, and the gap requirement is between 0mm-0.195mm; the second positioning pin 34 is arranged on the copper plate 30, and the first positioning sleeve 44 for docking the second positioning pin 34 is arranged on the insulation test carrier 40, and the gap requirement is between 0mm-0.16mm; the third positioning pin 25 is arranged on the lower pressing plate 22, and the second positioning sleeve 45 for docking the third positioning pin 25 is arranged on the insulation test carrier 40; in addition, the limiting block 11 for abutting against the insulation test carrier 40 is arranged on the lower fixed plate 10, and the insulation test carrier 40 is limited to the lowest position by the limiting block 11; the guide block 46 for abutting against the periphery of the bare board 1 is arranged around the bare board positioning area 41 on the insulation test carrier 40, so as to facilitate the guided placement of the bare board 1.

[0042] As shown in the Figures 3-4 corner position between the upper fixed plate 20 and the lower fixed plate 10 is connected with the second guide rod 26, the sliding block of the second guide rod 26 is connected with the push plate 27, the lower pressing plate 22 is installed at the lower end of the push plate 27, and the lower pressing power unit 21 is power-connected with the push plate 27; through this setting, the lower pressing plate 22 can operate more stably, and the lower pressing power unit 21 can be a gas cylinder, a lifting motor or other units connected with a motor through a transmission mechanism, which is selected according to actual conditions; through this setting, the lower pressing plate 22 can operate more stably.

[0043] As shown in the Figure 3 It also includes the case 60 and the cabinet 70 hinged on the case 60, the case 60 is used for arranging gas path valves, circuit systems and the like, and the cabinet 70 is used for arranging the above-mentioned mechanism; the lock catch 61 for limiting the turning of the two is arranged between the two sides of the cabinet 70 and the case 60; the hinged mode can facilitate the opening of the case 60, thereby facilitating the maintenance; the lower fixed plate 10 is installed in the cabinet 70; the operation table 62 is arranged at the front part of the case 60; the safety light curtain 71 is arranged at the front part of the cabinet 70, so as to prevent the hands of the operator from entering into the cabinet 70 during operation.

[0044] It is apparent for those skilled in the art that the present application is not limited to the details of the above-mentioned exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.

Claims

1. A bare board high voltage off-line test apparatus for performing a high voltage test on a bare board (1) having a plurality of workpieces (2) integrated thereon, characterized by, The utility model relates to a kind of insulated test carriers, including lower fixed plate (10) and the upper fixed plate (20) being arranged above lower fixed plate (10), copper plate (30) is installed on lower fixed plate (10), and elastic butt joint is insulated test carrier (40) on copper plate (30), insulated test carrier (40) is provided with bare board positioning area (41) for positioning bare board (1) and workpiece test window (42) being opened in bare board positioning area (41) on it, copper plate (30) is formed with multiple workpiece side contact grooves (31) corresponding to workpiece test window (42) and insulated bottom support (32) being arranged in workpiece side contact groove (31); Upper fixed plate (20) is installed with lower pressure power unit (21), lower pressure power unit (21) is power connected with the lower pressure plate (22) for pushing insulated test carrier (40) to overcome elastic force and move downwards, insulated test carrier (40) moves downwards to overcome elastic force to make workpiece side contact groove (31) expose from workpiece test window (42) to butt joint in the side of workpiece (2);Main pin probe array (23) and secondary pin probe array (24) are also provided on lower pressure plate (22) and butt joint in workpiece (2).

2. The bare board high voltage off-line test apparatus according to claim 1, wherein, Lower fixed plate (10) is provided with multiple elastic components (50) that are uniformly applied to insulated test carrier (40), and the elastic component (50) is used to elastically butt joint the copper plate (30) on the insulated test carrier (40), wherein the elastic component (50) includes a first guide rod (51) fixedly connected to the lower fixed plate (10), a guide slider (52) fixed to the insulated test carrier (40) and guidedly sleeved on the first guide rod (51), a compression spring (53) sleeved on the first guide rod (51) and abutting between the lower fixed plate (10) and the guide slider (52), and a limiting piece (54) fixedly connected to the first guide rod (51) and used to limit the guide slider (52).

3. The bare board high voltage off-line test apparatus of claim 1, wherein, The insulated bottom support (32) is formed with an insulation wall (33) for isolating the workpiece side contact groove (31), and the insulation wall (33) is used to isolate the side of the workpiece (2) that does not need to be tested from the workpiece side contact groove (31).

4. The bare board high voltage off-line test apparatus of claim 1, wherein, A first positioning pin (43) is arranged on the bare board positioning area (41) for positioning the bare board (1).

5. The bare board high voltage off-line test apparatus of claim 1, wherein, A second positioning pin (34) is arranged on the copper plate (30), and a first positioning sleeve (44) is arranged on the insulated test carrier (40) for butt joint with the second positioning pin (34).

6. The bare board high voltage off-line test apparatus of claim 1, wherein, A third positioning pin (25) is arranged on the lower pressure plate (22), and a second positioning sleeve (45) is arranged on the insulated test carrier (40) for butt joint with the third positioning pin (25).

7. The bare board high voltage off-line test apparatus of claim 1, wherein, A limiting block (11) is arranged on the lower fixed plate (10) for abutting against the insulated test carrier (40), and the insulated test carrier (40) is limited to the lowest position by the limiting block (11).

8. The bare board high voltage off-line test apparatus of claim 1, wherein, A guide block (46) is arranged around the bare board positioning area (41) on the insulated test carrier (40) for abutting against the periphery of the bare board (1).

9. The bare board high voltage off-line test apparatus of claim 1, wherein, Second guide rod (26) is connected between upper fixed plate (20) and lower fixed plate (10) at corner position, and push plate (27) is connected with sliding block on second guide rod (26), and lower pressing plate (22) is installed at lower end of push plate (27), and lower pressing power unit (21) is power connected with push plate (27).

10. The bare board high voltage off-line test apparatus of claim 9, wherein, Still include the cabinet (60) and the cabinet (70) hinged on the cabinet (60), the both sides of the cabinet (70) with the cabinet (60) between being provided with the lock catch (61) for limiting both to turn over, the lower fixed plate (10) is installed in the cabinet (70), and the operating table top (62) is still provided at the front of the cabinet (60), and the safety light curtain (71) is provided at the front of the cabinet (70).

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