Efficient and light jig for PCBA test
The efficient and lightweight fixture with a flip-top design solves the problems of large size, inconvenient operation and high processing cost of existing PCBA test fixture frames, and realizes a test solution with more operating space, greater flexibility and lower cost.
Patent Information
- Application Number
- CN202422706772.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-06
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-11-06
AI Technical Summary
Existing PCBA test fixtures are bulky, heavy, inconvenient to operate, have long processing cycles and high costs, and the quality of test signals is affected by the wires.
The efficient and lightweight fixture features a flip-top design, including a base plate and a cover plate. The cover plate is rotatably connected, providing a large operating space. A stable connection is achieved using first and second probes. The fixture is manufactured using 3D-printed ABS filament, simplifying the structure and reducing costs.
Significantly reduces the risk of PCBA impacts, improves operational flexibility, simplifies test connections, reduces processing costs, and ensures signal quality.
Smart Images
Figure CN223692476U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the jig field, specifically, relate to a kind of for the high-efficiency portable jig of PCBA test. BACKGROUND
[0002] PCBA test refers to the detection of electrical continuity and input-output numerical value based on the PCBA circuit board with electronic components mounted. In the design of PCB circuit board, there is a numerical relationship between different test points, such as voltage and current, which requires the use of professional test equipment or manual operation of multimeter to detect test points to verify whether the actual PCBA board meets the design requirements.
[0003] The commonly used test tool structure for research and development test on the market is a whole electric wood material splicing frame. The base is processed with a carving machine according to the test PCBA contour to form a limiting groove. The upper metal push-pull rod is connected with the acrylic plate. The plastic pressing rod or metal probe is accurately punched and installed on the appropriate position of the acrylic plate. The probe is connected with the test equipment through the wire, which meets various test requirements.
[0004] However, the main material of the existing test tool frame is electric wood, and the pressing component is a metal push-pull rod. The whole machine is large in size and occupies a lot of operation table space, and is heavy in weight, which is inconvenient to carry and take. The push-pull rod has limited stroke. When the sample is placed in the limiting groove, horizontal movement is easy to collide with the jig frame, and it is not easy to position and adjust. In addition, the parts that need to be customized and processed, such as the base limiting groove and the acrylic fixed plate, have long processing cycle and high processing cost. When testing, the probe needs to be connected with the test equipment through the lead, which is complicated to operate, and the long lead will affect the test signal quality. Utility model content
[0005] The utility model aims at providing a kind of high-efficiency portable jig for PCBA test, which adopts flip-open mode, can increase operation space, and greatly reduces the risk of PCBA collision.
[0006] The embodiment of the utility model is realized as follows:
[0007] The embodiment of the application discloses a high-efficiency and light fixture for PCBA testing, which comprises a bottom plate and a cover plate, wherein the bottom plate is provided with a first connector and a second connector respectively; the first connector is used for being connected with a PCBA, the arrangement mode of first probes in the first connector is matched with the position of test points of the PCBA, so that the first probes are electrically connected with the test points; second probes in the second connector are electrically connected with the first probes and an external test interface respectively; the cover plate is connected with the bottom plate, the cover plate can rotate relative to the bottom plate to be buckled on the area of the bottom plate provided with the first probes, and the cover plate is pressed against the PCBA on the bottom plate when the cover plate is in the buckled state.
[0008] In a possible implementation, the bottom plate comprises a bottom plate body and a support frame; the first probes and the second probes are arranged on the bottom plate body respectively; the support frame is arranged at the area of the bottom plate body where the first connector is arranged, the shape and size of the support frame are matched with the shape and size of the PCBA, and the PCBA is arranged in the support frame, and the test points of the PCBA are connected with the first probes.
[0009] In a possible implementation, a support plate is arranged on one side of the support frame, and the side is the side between the first connector and the second connector; the side of the cover plate is rotationally connected with the support plate.
[0010] In a possible implementation, a pressing rod extending towards the bottom plate body is arranged on the side of the cover plate facing the bottom plate body; when the cover plate is in the buckled state, the pressing rod abuts against the PCBA on the bottom plate body, so that the PCBA is pressed against the bottom plate.
[0011] In a possible implementation, the fixture further comprises a buckling structure, the buckling structure comprises a buckle with a hook portion at an end; a clamping groove is arranged on the opposite side of the cover plate corresponding to the support frame, and the shape and size of the clamping groove are matched with the hook portion; when the cover plate is in the buckled state, the buckle is clamped with the clamping groove through the hook portion.
[0012] In a possible implementation, the buckling structure further comprises a reset spring; the buckle is rotationally connected with the cover plate; the reset spring is located between the cover plate and the end of the buckle away from the hook portion, and the two ends of the reset spring are connected with the cover plate and the buckle respectively.
[0013] In a possible implementation, a guide block is arranged in the clamping groove, and the guide block has a guide surface in the shape of a parabola; during the pressing process of the cover plate, the hook portion is in contact with the guide surface and slides along the guide surface to the inside of the clamping groove.
[0014] In possible implementation manners, the bottom plate body, the support frame body, the cover plate and the buckle are obtained by using ABS materials and 3D printing.
[0015] In possible implementation manners, the jig further comprises a plurality of connecting members, the support frame body and the bottom plate body are connected by the connecting members, the cover plate and the support plate are connected by the connecting members, and the buckle and the cover plate are connected by the connecting members.
[0016] The beneficial effects of the embodiment of the utility model are that the cover plate and the bottom plate are connected in a rotating manner, the cover plate has a large opening angle, a large operation space is provided for installing the PCBA, and the risk of PCBA bumping is greatly reduced.
[0017] After the PCBA is placed in a suitable position, the cover plate can realize compression of the PCBA in a flip-down manner. The overall operation space is larger, the flexibility is higher, and the structure is simple and reliable.
[0018] In addition, the first probe welded on the bottom plate is connected with the test PCBA, and the spring in the first probe can ensure that the first probe needle and the PCBA are stably connected. The test points are led out on the bottom plate through wiring, and related test circuits and test interfaces can be arranged on the periphery of the bottom plate according to the test content. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment, and it should be understood that the following drawings only show some embodiments of the utility model, and should not be regarded as limiting the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the premise of the drawings.
[0020] Fig. 1 It is a structure diagram of the high-efficiency and light-weight jig for PCBA test in the embodiment of the utility model in the buckling state.
[0021] Fig. 2 It is a structure diagram of the high-efficiency and light-weight jig for PCBA test in the embodiment of the utility model in the open state.
[0022] Fig. 3 It is a plan view of the high-efficiency and light-weight jig for PCBA test in the embodiment of the utility model.
[0023] Icon: 1, bottom plate; 11, bottom plate main body; 111, clamping groove; 112, guide surface; 12, support frame; 2, cover plate; 3, first probe; 4, second probe; 5, pressing rod; 6, buckling structure; 61, buckle; 611, hook part; 62, reset spring; 7, support plate; 8, connecting piece. DETAILED DESCRIPTION
[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.
[0025] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.
[0026] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0027] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.
[0028] In addition, the terms "horizontal", "vertical" and the like do not mean that the components must be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.
[0029] In the description of the utility model, it also needs to be explained that, unless there are explicit provisions and limitations, the terms "arrange", "install", "connect", "connect" should be broadly understood, for example, it can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.
[0030] As Figs. 1 to 3 The utility model discloses a kind of efficient portable fixtures for PCBA test of embodiment of the application, including bottom plate 1 and cover plate 2, first connector and second connector (pogo-pin) are respectively arranged on bottom plate 1;First connector is used to connect with PCBA, the arrangement mode of first probe 3 in first connector is matched with the test point position of PCBA, to be electrically connected with test point by first probe 3;Second probe 4 in second connector is electrically connected with first probe 3 and external test interface respectively;Cover plate 2 is connected with bottom plate 1, cover plate 2 can be rotated relative to bottom plate 1 to be buckled on the area of bottom plate 1 where first probe 3 is arranged, and when cover plate 2 is in buckling state, it is pressed on PCBA located on bottom plate 1.
[0031] In combination with the above embodiment, cover plate 2 and bottom plate 1 adopt rotating connection mode, the opening angle of cover plate 2 can exceed 180 °, which provides larger operation space for installing PCBA, and greatly reduces the risk of PCBA knocking. After PCBA is placed in appropriate position, cover plate 2 can realize the pressing of PCBA by flip-down mode. The overall operation space is larger, the flexibility is higher, and the structure is simple and reliable. In addition, first probe 3 welded on bottom plate 1 is connected with test PCBA, and the spring inside first probe 3 can ensure that first probe 3 and PCBA maintain stable connection. The test points are led out on bottom plate 1 by wiring, and relevant test circuit and test interface can be arranged on the periphery of bottom plate 1 according to test content.
[0032] The efficient portable fixture for PCBA test of embodiment of the application, bottom plate 1 includes bottom plate main body 11 and support frame body 12;First probe 3 and second probe 4 are respectively arranged on bottom plate main body 11;Support frame body 12 is arranged in the area where first connector is installed on bottom plate main body 11, the shape and size of support frame body 12 are matched with the shape and size of PCBA, PCBA is used to be placed in support frame body 12, and the test point of PCBA is connected with first probe 3.
[0033] In combination with the above embodiment, the bottom plate 1 includes two layers, the support frame body 12 is the upper layer, the bottom plate body 11 is the lower layer, the first probe 3 and the second probe 4 are located on the two sides of the top surface of the bottom plate body 11, and the support frame body 12 is in a U shape as a whole. When placing the PCBA, the two side edges of the PCBA are aligned with the support frame body 12, so that the PCBA can be quickly positioned and the installation efficiency of the PCBA is improved.
[0034] The high-efficiency and light fixture for PCBA testing provided in the embodiment of the application is characterized in that one side edge of the support frame body 12 is provided with a support plate 7, the side edge is between the first connector and the second connector; and the side edge of the cover plate 2 is rotationally connected with the support plate 7. The support plate 7 provides a mounting position for the cover plate 2, and is located between the first connector and the second connector and has a proper height, so that the cover plate 2 can be flipped by more than 180° relative to the bottom plate body 11, thereby providing sufficient space for the installation of the PCBA.
[0035] The high-efficiency and light fixture for PCBA testing provided in the embodiment of the application is characterized in that the side surface of the cover plate 2 facing the bottom plate body 11 is provided with a pressing rod 5 extending towards the bottom plate body 11; and when the cover plate 2 is in the buckling state, the pressing rod 5 abuts against the PCBA on the bottom plate body 11 to press the PCBA tightly on the bottom plate 1. The number of the pressing rods 5 is multiple, and the pressing rods 5 are arranged at the edge and the middle of the cover plate 2, and the material of the pressing rods 5 is PVC, so that the pressing rods 5 can apply force uniformly on the PCBA.
[0036] The high-efficiency and light fixture for PCBA testing provided in the embodiment of the application is characterized in that the fixture further includes a buckling structure 6, the buckling structure 6 includes a buckle 61 having a hook portion 611 at the end; the support frame body 12 is provided with a clamping groove 111 corresponding to the opposite side of the cover plate 2, and the shape and size of the clamping groove 111 are matched with the hook portion 611; and when the cover plate 2 is in the buckling state, the buckle 61 is clamped with the clamping groove 111 through the hook portion 611. The buckling structure 6 is used instead of the traditional cam self-locking structure, and the structure is simple and occupies small space.
[0037] The high-efficiency and light fixture for PCBA testing provided in the embodiment of the application is characterized in that the buckling structure 6 further includes a reset spring 62; the buckle 61 is rotationally connected with the cover plate 2; and the reset spring 62 is located between the cover plate 2 and the end of the buckle 61 away from the hook portion 611, and the two ends of the reset spring 62 are connected with the cover plate 2 and the buckle 61 respectively. The clamping groove 111 is internally provided with a guide block, and the guide block has a guide surface 112 in a parabolic shape; and in the process of pressing down the cover plate 2, the hook portion 611 contacts the guide surface 112 and slides along the guide surface 112 to the inside of the clamping groove 111. The guide surface 112 is designed in a parabolic shape, and under the action of the reset spring 62, the cover plate 2 can be automatically buckled in the process of pressing down. In the process of pressing down the cover plate 2, the bottom end of the hook portion 611 touches the guide surface 112 and slides along the curve until it is automatically buckled under the action of the reset spring 62.
[0038] The high-efficiency and light fixture for PCBA test of the embodiment of the application, the bottom plate body 11, the support frame body 12, the cover plate 2 and the buckle 61 are obtained by the following method respectively, the method comprises the following steps: using ABS consumables and adopting the mode of 3D printing to make, realizing low-cost rapid scheme verification and batch production under the same or similar performance requirements, compared with the advantages of carving electrical wood and acrylic plate, avoiding the complex structure and high-cost metal parts.
[0039] The high-efficiency and light fixture for PCBA test of the embodiment of the application, the fixture further comprises a plurality of connecting pieces 8, the support frame body 12 and the bottom plate body 11 are connected through the connecting pieces 8, the cover plate 2 and the support plate 7 are connected through the connecting pieces 8, and the buckle 61 and the cover plate 2 are connected through the connecting pieces 8. The connecting pieces 8 can be M3 (6) screws, pin shafts and the like, realizing the connection of various components, and further ensuring the rotation of the buckle 61 relative to the cover plate 2 and the rotation of the cover plate 2 relative to the support plate 7.
[0040] The above only describes the preferred embodiments of the application and is not used to limit the application. For those skilled in the art, the application can be variously changed and modified. Any modification, equivalent replacement, improvement and the like within the spirit and principle of the application shall be included in the protection scope of the application.
Claims
1. A high efficiency and light weight fixture for PCBA testing, characterized in that, The jig comprises a bottom plate and a cover plate, the bottom plate is provided with a first connector and a second connector respectively; the first connector is used for connecting with a PCBA, the arrangement of first probes in the first connector matches the positions of test points of the PCBA, so as to electrically connect the first probes with the test points; the second probes in the second connector are electrically connected with the first probes and an external test interface respectively; the cover plate is connected with the bottom plate, the cover plate can rotate relative to the bottom plate to be buckled on the area of the bottom plate provided with the first probes, and the cover plate presses the PCBA on the bottom plate when it is in the buckled state.
2. The high efficiency portable fixture for PCBA testing as claimed in claim 1 wherein, The bottom plate comprises a bottom plate body and a support frame, the bottom plate body is provided with the first probes and the second probes respectively; the support frame is arranged in the area of the bottom plate body provided with the first connector, the shape and size of the support frame match the shape and size of the PCBA, the PCBA is used for being placed in the support frame, and the test points of the PCBA are connected with the first probes.
3. The high efficiency portable fixture for PCBA testing as claimed in claim 2 wherein, One side of the support frame is provided with a support plate, the side is between the first connector and the second connector; the side of the cover plate is rotationally connected with the support plate.
4. The high efficiency portable fixture for PCBA testing as claimed in claim 2 wherein, The side of the cover plate facing the bottom plate body is provided with a pressing rod extending towards the bottom plate body; when the cover plate is in the buckled state, the pressing rod abuts against the PCBA on the bottom plate body, so as to press the PCBA on the bottom plate.
5. The high efficient and portable fixture for PCBA testing as claimed in claim 3, wherein, The jig further comprises a buckling structure, the buckling structure comprises a buckle with a hook portion at an end; the support frame is provided with a clamping groove corresponding to the opposite side of the cover plate, and the shape and size of the clamping groove match the hook portion; when the cover plate is in the buckled state, the buckle is clamped with the clamping groove through the hook portion.
6. The high efficiency portable fixture for PCBA testing as claimed in claim 5 wherein, The buckling structure further comprises a reset spring; the buckle is rotationally connected with the cover plate; the reset spring is located between the cover plate and the end of the buckle away from the hook portion, and the two ends of the reset spring are connected with the cover plate and the buckle respectively.
7. The high efficiency and portable fixture for PCBA testing according to claim 5 or 6, wherein, The clamping groove is internally provided with a guide block, the guide block has a parabolic guide surface; during the pressing process of the cover plate, the hook portion contacts and slides along the guide surface to the inside of the clamping groove.
8. The high efficiency portable fixture for PCBA testing as claimed in claim 6 wherein, The bottom plate body, the support frame, the cover plate and the buckle are respectively obtained by using ABS consumables and 3D printing.
9. The high efficiency portable fixture for PCBA testing as claimed in claim 5 wherein, The jig further comprises a plurality of connectors, the support frame and the bottom plate body are connected through the connectors, the cover plate and the support plate are connected through the connectors, and the buckle and the cover plate are connected through the connectors.