Open and short circuit test equipment

Abstract

The utility model discloses an open and short circuit test device. The open and short circuit test equipment comprises a jig body, a first signal transfer-out piece and a second signal transfer-out piece, the jig assembly is used for fixing a to-be-tested piece, and the to-be-tested piece comprises a flat cable and a component which are connected; the first signal transfer-out piece is used for communicating the component with the main adapter plate; and the second signal transfer-out piece is used for communicating the flat cable with the main adapter plate. The open circuit and short circuit test equipment can be used for open circuit and short circuit test of a product formed by connection of a component and a flat cable. The utility model is applied to the technical field of open-short circuit testing.

Description

Technical Field

[0001] The present application relates to the technical field of open-short circuit testing, and in particular to an open-short circuit testing device. Background Art

[0002] Flexible Printed Circuit Board (FPCB) is a highly reliable flexible printed circuit board made of polyimide or polyester film. It has the characteristics of high wiring density, light weight, thin thickness and good bendability.

[0003] In related technologies, when performing open / short circuit testing on FPCBs, either a probe is used to contact the reserved contact points on the FPCB cables to connect the components, thereby performing an open / short circuit test on the FPCB cables; or FPCB components (such as FPCB connectors) are placed on a fixture to perform an open / short circuit test on the FPCB components. These methods are unable to perform open / short circuit testing on products formed by connecting components and cables. Utility Model Content

[0004] The present application aims to solve at least one of the above-mentioned technical problems in the prior art to a certain extent. To this end, an embodiment of the present application provides an open-short circuit test device that can be used for open-short circuit testing of products formed by connecting components and cables.

[0005] According to an embodiment of the present application, the open-short circuit test equipment includes: a fixture assembly, which is used to fix the test piece to be tested, and the test piece to be tested includes connected cables and components; a first signal output component, which is used to connect the components with the main adapter board; and a second signal output component, which is used to connect the cables with the main adapter board.

[0006] Based on the above technical solution, the embodiments of the present application have at least the following beneficial effects: in the embodiments of the present application, the test piece is fixed by a fixture assembly, which can prevent the test piece from shifting during the open-short circuit test, which is conducive to the open-short circuit test; the signal of the component can be led out to the main adapter board through the first signal transfer component, and the signal of the pin of the cable can be led out to the main adapter board through the second signal transfer component. The main adapter board connects the component signal and pin signal of the test piece to the open-short circuit tester through the connector, thereby forming a test circuit, and the open-short circuit test can be performed.

[0007] According to the open-short circuit testing equipment of an embodiment of the present application, the first signal output component includes a conductive component and an adapter component, the conductive component is movably connected to the fixture assembly, the conductive component is used to connect with the component, and the conductive component is connected to the adapter component, and the adapter component is used to connect with the main adapter board.

[0008] According to the open-short circuit test device of the embodiment of the present application, the open-short circuit test device also includes a clamping module and a support member, the clamping module is movably connected to the support member, the clamping module is used to drive the conductive member to move toward the direction close to the component, and the second signal output member can also be movably connected to the support member.

[0009] According to the open-short circuit testing device of an embodiment of the present application, the open-short circuit testing device further includes a moving part, which is movably connected to the supporting part, and the pressing module and the second signal output part are both installed on the moving part.

[0010] According to the open-short circuit testing device of an embodiment of the present application, the fixture assembly includes a first guide portion, a second guide portion is provided on the moving member, and the first guide portion is used to cooperate with the second guide portion.

[0011] According to the open-short circuit test device of the embodiment of the present application, the open-short circuit test device further includes a driving component, and the driving component is connected to the moving member to drive the moving member to move.

[0012] According to the open-short circuit testing device of the embodiment of the present application, the open-short circuit testing device further includes a controller, and the controller is electrically connected to the driving component.

[0013] According to the open-short circuit test equipment of an embodiment of the present application, the open-short circuit test equipment further includes a test cabinet, the fixture assembly and the support are both installed on the test cabinet, and the controller is installed in the test cabinet.

[0014] According to the open-short circuit testing device of the embodiment of the present application, a control button is provided on the test cabinet, and the control button is electrically connected to the controller.

[0015] According to the open-short circuit test equipment of an embodiment of the present application, the open-short circuit test equipment also includes an outer cover, which is connected to the test cabinet and is arranged outside the fixture assembly and the support member. An opening is formed on the side wall of the outer cover, and the fixture assembly is installed on a side close to the opening. The outer cover is provided with safety gratings on both sides of the opening.

[0016] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present application is further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1This is a schematic structural diagram of an open-short circuit test device in an embodiment of the present application;

[0019] Figure 2 This is a schematic structural diagram of a fixture assembly in an embodiment of the present application;

[0020] Figure 3 This is a schematic diagram of the structure of the test piece in the embodiment of the present application;

[0021] Figure 4 This is a schematic diagram of the structure of the plate in the embodiment of this application;

[0022] Figure 5 This is another structural schematic diagram of the fixture assembly in the embodiment of the present application;

[0023] Figure 6 This is a structural diagram of the connection between the moving member (installed with a pressing module and a second signal output member) and the supporting member in an embodiment of the present application;

[0024] Figure 7 Schematic diagram of the structure of the test cabinet (without top plate) in the embodiment of the present application.

[0025] Reference numerals:

[0026] Fixture assembly 100, fixture body 110, placement position 111, first position 1111, plate 112, groove 1121, first guide portion 1122, pressing member 121, first magnetic member 1211, vacuum generator 1221, vacuum filter 1222, adsorption structure 1223, sensor 130; test piece 200, cable 210, pin 211, component 220; conductive member 310, adapter 320; support member 410, movable member 4 20, drive component 430, clamping module 440, second signal output component 450; test cabinet 500, top plate 510, first sub-side panel 521, second sub-side panel 522, third sub-side panel 523, fourth sub-side panel 524, bottom plate 530, anti-pinch finger 540, controller 550, pressure gauge 560, first handle 570, cooling fan 580, control button 590; outer cover 600, opening 610, second handle 620; safety light grid 700. DETAILED DESCRIPTION

[0027] This section will describe the specific embodiments of the present application in detail. The preferred embodiments of the present application are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present application, but it cannot be understood as a limitation on the scope of protection of the present application.

[0028] In the description of this application, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application.

[0029] In the description of this application, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The terms "first" and "second" are used solely to distinguish technical features and are not to be construed as indicating or implying relative importance, or as implicitly specifying the number or order of the technical features indicated.

[0030] In the description of this application, unless otherwise clearly defined, words such as setting and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meaning of the above words in this application based on the specific content of the technical solution.

[0031] The technical solution of the present application will be further described below with reference to the embodiments and drawings.

[0032] See also Figure 1 The embodiment of the present application provides an open-short circuit testing device that can be used for open-short circuit testing of a product formed by connecting a component 220 with a cable 210.

[0033] See also Figures 1 to 3 The open-short circuit test equipment includes a fixture assembly 100, a first signal transfer component and a second signal transfer component 450. The fixture assembly 100 is used to fix the test piece 200, and the test piece 200 includes a connected cable 210 and components 220; the first signal transfer component is used to connect the components 220 and the main adapter board; the second signal transfer component 450 is used to connect the cable 210 and the main adapter board.

[0034] In the embodiment of the present application, the test piece 200 is fixed by the fixture assembly 100, which can prevent the test piece 200 from shifting during the open-short circuit test, which is conducive to the performance of the open-short circuit test; the signal of the component 220 can be led out to the main adapter board through the first signal transfer component, and the signal of the pin 211 of the cable 210 can be led out to the main adapter board through the second signal transfer component 450. The main adapter board connects the component 220 signal and the pin 211 signal of the test piece 200 to the open-short circuit tester through the connector, thereby forming a test circuit, and the open-short circuit test can be performed.

[0035] For example, see Figure 3The cable 210 is a flexible FPCB cable. A pin 211 is provided at one end of the cable 210. The end of the cable 210 away from the pin 211 is connected to the FPCB component 220. Alternatively, the FPCB component 220 may be a connector. Exemplarily, the FPCB component 220 is a B2B connector. Of course, the FPCB component 220 may also be other components 220, and this is not a specific limitation.

[0036] Alternatively, in some embodiments, see Figure 4 The first signal output component includes a conductive component 310 and an adapter 320. The conductive component 310 is movably connected to the fixture assembly 100. The conductive component 310 is used to connect with the component 220, and the conductive component 310 is connected to the adapter 320. The adapter 320 is used to connect with the main adapter board.

[0037] Exemplarily, the fixture assembly 100 includes a fixture body 110 and a fixing module, see Figure 2 The fixture body 110 is provided with a placement position 111 for placing the test piece 200 . The fixing module is connected to the fixture body 110 and is used to fix the test piece 200 on the placement position 111 .

[0038] It is understood that one or more placement positions 111 can be set on the fixture body 110, and each placement position 111 can be used to place a test piece 200. The number of conductive members 310 and fixing modules can be the same as the number of placement positions 111, and they correspond one to one. In this way, one fixture assembly 100 can be used to implement open and short circuit tests on one or more test pieces 200. For example, see Figure 2 , the placement position 111, the conductive member 310 and the fixing module are each set to two, and correspond one to one.

[0039] Alternatively, see Figure 4 The placement position 111 includes a first position 1111 for placing the component 220. The conductive member 310 is disposed above the first position 1111 so as to be movable up and down. For example, the fixture body 110 is provided with a plate 112, and the plate 112 is provided with a groove 1121. The bottom surface of the groove 1121 is the first position 1111.

[0040] Optionally, conductive member 310 includes two floating needle blocks, each movably disposed on either side of first position 1111 and positioned above first position 1111. Exemplarily, adapter 320 is a PCB adapter board, disposed below first position 1111 and connected to board 112 to secure adapter 320 to board 112. When it is necessary to route the signal of component 220 to the main adapter board, the two floating needle blocks can be pressed downward, connecting them to component 220, thereby routing the signal of component 220 to the main adapter board through adapter 320.

[0041] Optionally, the fixing module includes a pressing member 121, which is rotatably connected to the fixture body 110 and is used to press the component 220 to the first position 1111. For example, see Figure 4 The pressing piece 121 is a pressing block, one end of which is rotatably connected to the plate 112 through a rotating shaft. By rotating the pressing block, the other end of the pressing block can be located between the two floating needle blocks and press the placed components 220 to prevent the components 220 from shifting, so as to perform open and short circuit testing.

[0042] Optionally, in some embodiments, the pressing member 121 is provided with a first magnetic member 1211 on the side facing the first position 1111 (see Figure 4 ), the fixture body 110 is correspondingly provided with a second magnetic member (not shown in the drawings) on the side facing the first magnetic member 1211. The magnetic poles of the first magnetic member 1211 and the second magnetic member are opposite, and the first magnetic member 1211 is used to attract the second magnetic member.

[0043] Exemplarily, the second magnetic part is arranged on the side of the plate 112 facing the first magnetic part 1211. The first magnetic part 1211 and the second magnetic part are both magnets, and the magnetic pole of the first magnetic part 1211 is positive, and the magnetic pole of the second magnetic part is negative. When the pressing piece 121 presses the component 220, the first magnetic part 1211 and the second magnetic part are attracted to each other, thereby providing a clamping force so that the pressing piece 121 can press the component 220, and can also play a role in fixing the pressing piece 121 to prevent the pressing piece 121 from shifting.

[0044] Optionally, in some embodiments, the fixing module includes a vacuum adsorption assembly, which is disposed on a side of the fixture body 110 facing away from the placement position 111. The vacuum adsorption assembly is used to adsorb the test piece 200. By providing the vacuum adsorption assembly to adsorb the test piece 200, it is possible to prevent the use of a large-area pressure block to compress the test piece 200, thereby preventing damage to the test piece 200. It is also beneficial for securing relatively slender or large test pieces 200, and facilitates the loading and unloading of the test piece 200, thereby improving testing efficiency.

[0045] It is understood that the number of vacuum adsorption components can be one or more, and no specific limitation is given herein. For example, the number of vacuum adsorption components can be the same as the number of placement positions 111, and they correspond one to one.

[0046] Alternatively, in some embodiments, see Figure 5 The vacuum adsorption assembly includes a vacuum generator 1221, a vacuum filter 1222, and a suction structure 1223. The suction structure 1223 is connected to the vacuum generator 1221 via the vacuum filter 1222. The suction structure 1223 is connected to the fixture body 110, and the suction structure 1223 is arranged with its back facing the placement position 111. Optionally, the suction structure 1223 is connected to the vacuum filter 1222 via an air pipe joint. Optionally, the suction structure 1223 can be a suction cup.

[0047] Optionally, in some embodiments, the fixture assembly 100 further includes a sensor 130 , which is used to sense the test piece 200 . The sensor 130 is connected to the fixture body 110 , and the sensor 130 is electrically connected to the vacuum adsorption assembly, and the vacuum adsorption assembly opens and closes in response to the sensor 130 .

[0048] For example, the sensor 130 is a fiber optic sensor, and the sensor 130 is mounted on the side of the adsorption structure 1223 facing away from the fixture body 110 (see Figure 5 Of course, the sensor 130 may also be a pressure-sensitive sensor 130 or other sensor 130 that can sense the test piece 200 , and no specific limitation is made here.

[0049] When the sensor 130 senses that a test piece 200 is placed on the placement position 111, the sensor 130 sends an electrical signal to the vacuum generator 1221. The vacuum generator 1221 is activated upon receiving the electrical signal sent by the sensor 130, thereby enabling the adsorption structure 1223 to adsorb the test piece 200 on the placement position 111 to fix the test piece 200.

[0050] Alternatively, in some embodiments, see Figure 6 The open-short circuit test equipment also includes a clamping module 440 and a support member 410. The clamping module 440 is movably connected to the support member 410. The clamping module 440 is used to drive the conductive member 310 to move toward the direction close to the component 220. The second signal output member 450 is also movably connected to the support member 410.

[0051] Optionally, in some embodiments, the open / short circuit test device further includes a moving member 420, which is movably connected to the support member 410, and the compression module 440 and the second signal output member 450 are both mounted on the moving member 420. It is understood that the compression module 440 and the second signal output member 450 can also be mounted on two moving members 420 respectively, and this is not specifically limited here.

[0052] Optionally, in some embodiments, the fixture assembly 100 includes a first guide portion 1122 , a second guide portion is provided on the moving member 420 , and the first guide portion 1122 is configured to cooperate with the second guide portion.

[0053] For example, the first guide portion 1122 may be a guide sleeve, and the second guide portion may be a guide post. Figure 4 Plate 112 is provided with a guide sleeve on both sides of first position 1111, and movable member 420 can be provided with a guide post at the corresponding position. When movable member 420 moves downward to cause pressing module 440 to press conductive member 310 downward, the guide sleeve and the guide post cooperate and connect to provide a guide, thereby ensuring the pressing accuracy.

[0054] It is understandable that the specific structure, specific setting position and specific setting quantity of the first guide part 1122 and the second guide part can be set according to actual needs and are not specifically limited here.

[0055] Alternatively, in some embodiments, see Figure 6 The open-short circuit test device further includes a driving component 430 , which is connected to the moving member 420 to drive the moving member 420 to move.

[0056] Exemplarily, support member 410 is a support frame, and movable member 420 is a movable plate. Two guide rails extending in a vertical direction are spaced apart on the support frame, and the movable plate is slidably connected to the guide rails via sliders. Alternatively, drive member 430 may be a rodless cylinder connected to movable member 420 to drive movable member 420 along the length of the guide rails, thereby achieving up and down movement of movable member 420.

[0057] Optionally, the clamping module 440 includes one or more pressing blocks. The number of the clamping modules 440 is equal to the number of the placement positions 111. The number of the pressing blocks can be equal to the number of the floating needle blocks, and the number of the pressing blocks can correspond one to one. For example, two clamping modules 440 can be provided, and each clamping module 440 includes two pressing blocks. When the movable plate moves downward, the two pressing blocks can respectively press down the two floating needle blocks in each conductive member 310, so that both floating needle blocks can be connected to the component 220 in the first position 1111, so that the signal of the component 220 can be led out to the main adapter board through the adapter 320.

[0058] Optionally, the second signal output component 450 can be a probe module, which can include multiple probes. The number of probe modules is equal to the number of placement positions 111, and each probe module is used to connect to the pin 211 of each cable 210, thereby leading the signal of the pin 211 of the cable 210 to the main adapter board.

[0059] Optionally, the open-short circuit test equipment also includes an open-short circuit tester, and the main adapter board connects the component 220 signal and the pin 211 signal of the test piece 200 to the open-short circuit tester through a 64-pin connector to form a loop, thereby performing an open-short circuit test.

[0060] For example, two probe modules are provided. When the movable plate moves downward, the probe modules also move downward, so that each probe module can be connected to the pin 211 of the corresponding cable 210. It is understood that the number of probes and the arrangement of the probes in each probe module can be set according to actual needs and are not specifically limited here.

[0061] It is understandable that by moving the moving member 420 upward or downward, the on-off state of the circuit can be controlled, thereby controlling the start and stop of the open-short circuit test.

[0062] Optionally, in some embodiments, the open / short circuit test device further includes a controller 550, which is electrically connected to the drive component 430. Optionally, the controller 550 can be a solenoid valve, which is electrically connected to the drive component 430 to control the opening and closing and operating conditions of the drive component 430.

[0063] Alternatively, in some embodiments, see Figure 1 and Figure 7 The open-short circuit test equipment further includes a test cabinet 500 , the fixture assembly 100 and the support member 410 are both mounted on the test cabinet 500 , and the controller 550 is mounted in the test cabinet 500 .

[0064] Exemplarily, the test cabinet 500 includes a top panel 510, side panels, and a bottom panel 530. The top panel 510 is connected to the side panels, which are in turn connected to the bottom panel 530. The top panel 510, the side panels, and the bottom panel 530 form a receiving cavity. Optionally, the test cabinet 500 is rectangular, and the side panels include a first sub-side panel 521, a second sub-side panel 522, a third sub-side panel 523, and a fourth sub-side panel 524, which are connected in sequence.

[0065] Optionally, the fixture assembly 100 and the support member 410 are both mounted on the top plate 510. Optionally, a finger pinch guard 540 is provided on the side panels to support the top plate 510 and facilitate safe maintenance by the operator. Optionally, the finger pinch guard 540 is symmetrically provided on the second sub-side panel 522 and the fourth sub-side panel 524, which are arranged opposite each other.

[0066] Optionally, the base plate 530 is an electronic control base plate 530, which can be used to install and fix electronic components such as the host MACMIN, the controller 550, and the test board. Optionally, a pressure gauge 560 is also installed on the inner wall of the side panel, and the pressure gauge 560 is used to display and adjust the air circuit pressure. Optionally, the pressure gauge 560, the host MACMIN, the controller 550, the test board and other electronic components are all accommodated in the accommodating cavity. Optionally, a cooling fan 580 is also provided on the side panel, and the cooling fan 580 connects the accommodating cavity and the outside world, so that the heat generated by the electronic components in the accommodating cavity can be discharged in time to prevent heat accumulation from affecting the normal operation of the equipment. Optionally, cooling fans 580 are symmetrically provided on the second sub-side panel 522 and the fourth sub-side panel 524 arranged opposite to each other.

[0067] Alternatively, in some embodiments, see Figure 1 or Figure 7 The test cabinet 500 is provided with a control button 590, which is electrically connected to the controller 550. The control button 590 controls the opening and closing and operating conditions of the moving member 420 through the controller 550. Exemplarily, the control button 590 is provided on the outer wall of the first sub-side panel 521, and the control button 590 includes a start button, a reset button, and an emergency stop button.

[0068] Optionally, a first handle 570 is provided on the outer wall of the side panel to facilitate the movement of the entire open / short circuit test device. Optionally, first handles 570 are symmetrically provided on the second sub-side panel 522 and the fourth sub-side panel 524 that are arranged opposite to each other.

[0069] Alternatively, in some embodiments, see Figure 1 The open-short circuit test equipment also includes an outer cover 600, which is connected to the test cabinet 500 and is arranged outside the fixture assembly 100 and the support 410. An opening 610 is formed on the side wall of the outer cover 600, and the fixture assembly 100 is installed on a side close to the opening 610. The outer cover 600 is provided with safety gratings 700 on both sides of the opening 610.

[0070] The fixture assembly 100 is installed on a side close to the opening 610, which makes it easy for the operator to fix the test piece 200 on the fixture assembly 100 from the opening 610. Safety gratings 700 are arranged on both sides of the opening 610 to provide safety protection for the operator.

[0071] Optionally, two second handles 620 are symmetrically provided on the outer cover 600 to facilitate moving the device. Optionally, the second handles 620 may be grooves. Of course, the second handles 620 may also adopt handles of other structures, which are not specifically limited here.

[0072] Other structures and operations of the open-short circuit testing device according to the embodiment of the present application are known to ordinary technicians in this field and will not be described in detail here.

[0073] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present application.

Claims

1. Open and short circuit test equipment, characterized in that, include: A fixture assembly, the fixture assembly is used to fix the test piece, the test piece includes connected cables and components; a first signal output component, the first signal output component being used to connect the component to the main adapter board; The second signal output component is used to connect the cable and the main adapter board.

2. The open-short circuit test equipment according to claim 1, characterized in that: The first signal output component includes a conductive component and an adapter component. The conductive component is movably connected to the fixture assembly. The conductive component is used to connect with the component, and the conductive component is connected to the adapter component. The adapter component is used to connect with the main adapter board.

3. The open-short circuit test equipment according to claim 2, characterized in that: The open-short circuit testing device also includes a clamping module and a support member. The clamping module is movably connected to the support member. The clamping module is used to drive the conductive member to move toward the direction close to the component. The second signal output member is also movably connected to the support member.

4. The open-short circuit test equipment according to claim 3, characterized in that: The open-short circuit testing device further includes a moving part, which is movably connected to the supporting part, and the pressing module and the second signal output part are both mounted on the moving part.

5. The open-short circuit test equipment according to claim 4, characterized in that: The fixture assembly includes a first guide portion, and the moving member is provided with a second guide portion, and the first guide portion is used to cooperate with the second guide portion.

6. The open-short circuit test equipment according to claim 4, characterized in that: The open-short circuit testing device further includes a driving component connected to the moving member to drive the moving member to move.

7. The open-short circuit test equipment according to claim 6, characterized in that: The open-short circuit testing device further includes a controller electrically connected to the driving component.

8. The open-short circuit test equipment according to claim 7, characterized in that: The open-short circuit test equipment further includes a test cabinet, the fixture assembly and the support are both mounted on the test cabinet, and the controller is mounted in the test cabinet.

9. The open-short circuit test equipment according to claim 8, characterized in that: The test cabinet is provided with a control button, and the control button is electrically connected to the controller.

10. The open-short circuit test equipment according to claim 8, characterized in that: The open-short circuit test equipment also includes an outer cover, which is connected to the test cabinet and is arranged outside the fixture assembly and the support member. An opening is formed on the side wall of the outer cover, and the fixture assembly is installed on a side close to the opening. The outer cover is provided with safety gratings on both sides of the opening.

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