Flexible circuit board test frame

Abstract

The utility model discloses a flexible circuit board test frame, which comprises a support frame assembly and a wire row assembly, and is characterized in that the support frame assembly comprises a bottom plate, a middle plate, a first partition plate, a second partition plate and a panel which are stacked in sequence, and gaps are formed between adjacent plate bodies; the bottom plate and the middle plate are fastened through a plurality of evenly-distributed stand columns, the middle plate, the first partition plate, the second partition plate and the face plate are fixed through a plurality of evenly-distributed fastening assemblies, and each fastening assembly comprises a fastening piece sequentially connected with the middle plate, the first partition plate, the second partition plate and the face plate and a sleeve connected to the fastening piece in a sleeving mode. The middle plate, the first partition plate, the second partition plate and the panel are parallelly separated by the sleeve; the plurality of rows of pin groups are arranged side by side; the plurality of positioning columns are regularly arranged at the periphery of the plurality of rows of pin groups; the wire row assembly comprises two transverse plates arranged side by side and a plurality of bayonet sockets fixed between the two transverse plates side by side; the device is simple in structure, convenient to assemble, disassemble and maintain and low in cost.

Description

Technical Field

[0001] This utility model relates to the technical field of circuit board testing equipment, and specifically to a flexible circuit board testing frame. Background Technology

[0002] Flexible printed circuit boards (FPCBs) are bendable and foldable electronic circuit boards made of flexible substrates (such as polyimide (PI) or polyester (PET), and are widely used in modern electronic devices. Compared with traditional rigid PCBs, FPCBs are thinner, more resistant to bending, and have higher space utilization, making them suitable for complex three-dimensional layouts.

[0003] Test fixtures are used to verify the proper functioning of circuits on flexible printed circuit boards (FPCBs). By inserting the FPCB into the test fixture and connecting it to the test equipment, operation under actual working conditions can be simulated to check whether each part of the circuit works as expected, ensuring quality and performance. The test fixture provides mechanical support for the FPCB, ensuring that it can be stably inserted and fixed to the test equipment. This helps to avoid instability and electrical connection problems of the FPCB during testing, improving the accuracy of test results.

[0004] Utility model patent CN210982669U discloses a fully automated flexible circuit board electrical testing device capable of automatically grasping, moving, and positioning products under test. This testing device has a complex structure and high testing costs, making it unsuitable for small and medium-sized enterprises and small-scale testing needs. Utility Model Content

[0005] In order to overcome at least one of the technical problems existing in the prior art, this utility model provides a flexible circuit board test fixture; the structure is relatively simple, easy to assemble, disassemble and maintain, and has a low cost, which can meet the testing needs of small and medium-sized enterprises and small quantities.

[0006] A flexible circuit board test fixture includes a support frame assembly and a cable tray assembly. The support frame assembly includes a base plate, a middle plate, a first partition plate, a second partition plate, and a front panel stacked sequentially, with gaps between adjacent plates. The base plate and the middle plate are fastened together by multiple evenly distributed columns. The middle plate, the first partition plate, the second partition plate, and the front panel are fixed together by multiple evenly distributed fastening components. Each fastening component includes a fastener that connects the middle plate, the first partition plate, the second partition plate, and the front panel sequentially, and a sleeve fitted onto the fastener. The sleeve secures the middle plate, the first partition plate, the second partition plate, and the front panel. The partition, the second partition, and the front panel are parallel to each other; it also includes multiple rows of pin groups arranged side by side and multiple positioning posts regularly arranged around the periphery of the multiple rows of pin groups. The upper ends of the multiple rows of pin groups and the multiple positioning posts extend vertically to the top surface of the front panel, and the lower ends of the multiple rows of pin groups extend to the bottom surface of the middle plate. The lower ends of the multiple positioning posts are fixed to the middle plate. The cable assembly includes two horizontal plates arranged side by side and multiple plug sockets fixed side by side between the two horizontal plates. One end of each horizontal plate is connected to the bottom plate, and the lower end of the multiple rows of pin groups is electrically connected to the multiple plug sockets through wire groups.

[0007] In some embodiments, the first end of the column is threadedly connected to the middle plate, and the second end of the column is provided with a column T-shaped column. The column T-shaped column is inserted into the base plate, and a countersunk screw is screwed into the internal thread hole of the column T-shaped column to fix the column T-shaped column and the base plate in a detachable connection.

[0008] In some embodiments, the first end of the fastener is threaded to the middle plate, and the second end of the fastener passes through the first partition and the second partition in sequence along the axial direction. The second end of the fastener is provided with a fastener T-shaped post, which is inserted into the panel. A countersunk screw is screwed into the internal thread hole of the fastener T-shaped post to fix the fastener T-shaped post and the panel in a detachable connection.

[0009] In some embodiments, the plurality of positioning posts are four evenly distributed, and the top of the positioning posts is conical.

[0010] In some embodiments, the base plate, middle plate, first partition, second partition, front panel, and horizontal plate are all insulating plates; one end of the two horizontal plates is connected and fixed to the base plate by bolts.

[0011] Additional aspects and advantages of this invention will continue to be set forth in the description which follows, and in part will be obvious from the description or may be learned by practice of this invention. Attached Figure Description

[0012] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0013] Figure 1 This is a side structural diagram of this application;

[0014] Figure 2yes Figure 1 A schematic diagram of the structure after removing the pin group and cable assembly;

[0015] Figure 3 This is a top view of the structure of this application;

[0016] Figure 4 This is a schematic diagram of the structure from below in this application.

[0017] Figure label:

[0018] Support frame assembly 1;

[0019] Base plate 100, middle plate 101, first partition 102, second partition 103, panel 104, column 105, column T-shaped column 105a, fastening assembly 106, fastener 106a, fastener T-shaped column 106ab, sleeve 106b, multi-row pin assembly 107, pin 107a, positioning column 108, countersunk screw 109;

[0020] Cable assembly 2;

[0021] Horizontal plate 200, plug-in socket 201, bolt 202. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0023] In the description of this utility model, it should be understood that the directional descriptions, such as the terms "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Reference Figures 1-4A flexible circuit board test fixture includes a support frame assembly 1 and a cable tray assembly 2. The support frame assembly 1 is used to place and support the flexible circuit board, and the cable tray assembly 2 is used to electrically connect the flexible circuit board to the test equipment. The support frame assembly 1 includes a base plate 100, a middle plate 101, a first partition 102, a second partition 103, and a front panel 104 stacked sequentially. Adjacent plates are arranged in parallel and form gaps. The base plate 100 and the middle plate 101 are fastened together by a plurality of evenly distributed columns 105, which can be 4, 6 or more, depending on the size of the plate. The middle plate 101, the first partition 102, the second partition 103, and the front panel 104 are stacked sequentially. The plates 104 are fixed together by a plurality of evenly distributed fastening components 106, which may be four, six or more. Each fastening component 106 includes a fastener 106a that sequentially connects the middle plate 101, the first partition 102, the second partition 103 and the front panel 104, and a plurality of sleeves 106b that are sequentially fitted onto the fasteners 106a. The sleeves 106b are made of plastic or rubber and serve to cushion and dampen vibrations. The sleeves 106b are of equal height and parallelly separate the middle plate 101, the first partition 102, the second partition 103 and the front panel 104, thus serving as a limiting element. The fasteners also include multiple rows of pin groups 107 arranged side by side. Multiple positioning posts 108 are regularly arranged around the periphery of the multi-row pin group 107, which are used to position the flexible circuit board on the surface of the panel 104 to avoid or reduce displacement. The upper ends of the multi-row pin group 107 and the multiple positioning posts 108 extend vertically to the top surface of the panel 104, and the lower end of the multi-row pin group 107 extends to the bottom surface of the middle plate 101. The lower ends of the multiple positioning posts 108 are fixed to the middle plate 101. The multi-row pin group 107 includes multiple pins 107a arranged side by side. The wire assembly 2 includes two rectangular horizontal plates 200 arranged side by side and multiple sockets 201 fixed side by side between the two horizontal plates 200 by screws. One end of each horizontal plate 200 Connected to the base plate 100, the lower end of the multi-row pin group 107 is electrically connected to multiple sockets 201 via a wire group, also known as a wire harness. The number of pin groups 107 and sockets 201 is equal, and an equal number of pins 107a are provided on the pin groups 107 and sockets 201. In use, the base plate 100 is in contact with the workbench surface, the flexible circuit board is laid on the panel 104 and limited by the positioning post 108, and the partition can be stacked or reduced according to the length of the pins. This application is easy to install and disassemble, easy to maintain, compact in size, and has low production cost. Combined with testing equipment, it can conveniently test the flexible circuit board.

[0027] In some embodiments, the first end of the column 105 is threadedly connected to the middle plate 101, and the second end of the column 105 is provided with a column T-shaped column 105a. The diameter of the column T-shaped column 105a is smaller than the diameter of the column 105. The column T-shaped column 105a is inserted into the base plate 100. A countersunk screw 109 is screwed into the internal threaded hole of the column T-shaped column 105a to detachably connect and fix the column T-shaped column 105a to the base plate 100. The above structure is simple and easy to assemble, disassemble and maintain.

[0028] In some embodiments, the first end of the fastener 106a is threadedly connected to the middle plate 101, and the second end of the fastener 106a passes through the first partition 102 and the second partition 103 in sequence along the axial direction. The second end of the fastener 106a is provided with a fastener T-shaped post 106ab, the diameter of which is smaller than that of the fastener 106a. The fastener T-shaped post 106ab is inserted into the panel 104, and a countersunk screw 109 is screwed into the internal threaded hole of the fastener T-shaped post 106ab to detachably connect and fix the fastener T-shaped post 106ab to the panel 104. The above structure is simple and easy to install, disassemble and maintain.

[0029] In some embodiments, the plurality of positioning posts 108 are four evenly distributed, and the top of the positioning post 108 is conical to facilitate engagement with the positioning holes on the flexible circuit board.

[0030] In some embodiments, the base plate 100, middle plate 101, first partition 102, second partition 103, panel 104, and horizontal plate 200 are all insulating plates, which provide good safety; one end of each of the two horizontal plates 200 is connected and fixed to the base plate 100 by bolts 202, which makes assembly, disassembly, and maintenance convenient.

[0031] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification. Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A flexible circuit board test fixture, comprising a support frame assembly and a cable tray assembly, characterized in that: The support frame assembly includes a base plate, a middle plate, a first partition plate, a second partition plate, and a panel, stacked sequentially, with gaps between adjacent plates. The base plate and the middle plate are secured by multiple evenly distributed columns, and the middle plate, the first partition plate, the second partition plate, and the panel are fixed by multiple evenly distributed fastening components. Each fastening component includes a fastener that connects the middle plate, the first partition plate, the second partition plate, and the panel sequentially, and a sleeve fitted onto the fastener, the sleeve keeping the middle plate, the first partition plate, the second partition plate, and the panel parallel. It is separated; it also includes multiple rows of pin groups arranged side by side, and multiple positioning posts regularly arranged around the periphery of the multiple rows of pin groups. The upper ends of the multiple rows of pin groups and the multiple positioning posts extend vertically to the top surface of the panel, and the lower ends of the multiple rows of pin groups extend to the bottom surface of the middle plate. The lower ends of the multiple positioning posts are fixed to the middle plate. The cable assembly includes two horizontal plates arranged side by side and multiple plug sockets fixed side by side between the two horizontal plates. One end of each horizontal plate is connected to the bottom plate, and the lower end of the multiple rows of pin groups is electrically connected to the multiple plug sockets through wire groups.

2. The flexible circuit board test fixture as described in claim 1, characterized in that: The first end of the column is threaded to the middle plate, and the second end of the column is provided with a T-shaped column. The T-shaped column is inserted into the base plate, and countersunk screws are screwed into the internal threaded holes of the T-shaped column to detachably connect and fix the T-shaped column to the base plate.

3. The flexible circuit board test fixture as described in claim 2, characterized in that: The first end of the fastener is threaded to the middle plate, and the second end of the fastener passes through the first partition and the second partition in sequence along the axial direction. The second end of the fastener is provided with a fastener T-shaped post, which is inserted into the panel. A countersunk screw is screwed into the internal thread hole of the fastener T-shaped post to fix the fastener T-shaped post and the panel in a detachable connection.

4. The flexible circuit board test fixture as described in claim 3, characterized in that: The positioning posts are four evenly distributed, and the top of each positioning post is conical.

5. The flexible circuit board test fixture as described in claim 4, characterized in that: The base plate, middle plate, first partition, second partition, front panel, and horizontal plates are all insulating plates; one end of each of the two horizontal plates is connected and fixed to the base plate by bolts.

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