Flat cable carrier assembly and flat cable testing device

Abstract

The utility model provides a kind of wire carrier plate assembly and wire testing device, the wire carrier plate assembly includes supporting plate, needle mould adapter plate and vacuumizing component, supporting plate is equipped with product placing groove, supporting plate is equipped with needle mould plate, needle mould plate is equipped with suction cavity, jack and first perforation, jack and first perforation are all equipped in suction cavity below and all are communicated with suction cavity;Needle mould adapter plate is equipped below supporting plate, needle mould adapter plate is equipped with probe, and vacuumizing component is communicated with suction cavity by first perforation;Supporting plate can be moved up and down relative to probe, so that the top of probe can be inserted into product placing groove;The wire testing device includes bottom box component, press-down component and wire carrier plate assembly, press-down component includes press-down driving device, movable plate and presser plate component, presser plate component is up and down corresponding with product placing groove, press-down driving device drives presser plate component to move up and down;The utility model can effectively avoid that flexible circuit board golden finger occurs position deviation, ensure that it is effectively contacted with probe.

Description

Technical Field

[0001] This utility model relates to the field of flexible circuit board testing equipment, specifically to a ribbon cable carrier assembly and a ribbon cable testing device. Background Technology

[0002] Flexible printed circuit boards (FPCs), also known as flexible circuit boards or flexible circuit boards, are favored for their excellent properties such as light weight, thinness, and ability to be bent and folded freely. They typically have gold fingers at their ends for connecting other circuit components. In the FPC manufacturing process, the testing process is crucial; the FPC needs to be electrically connected to a test circuit to simulate and test its various electrical performance indicators. Specifically, multiple probes usually need to independently contact the conductive contacts on the gold fingers to connect the FPC to the test circuit.

[0003] To meet the requirements of this testing process and achieve automated testing of FPCs, a testing platform must first be designed to support the FPC. Simultaneously, this platform must ensure precise alignment of the conductive contacts on the gold fingers with the corresponding sockets on the testing equipment during support, so that subsequent test probes can accurately pass through the sockets and contact the conductive contacts. Due to the small diameter of the probes and sockets, the positioning accuracy of the FPC within the testing equipment is extremely critical, especially the positional accuracy of the gold fingers. However, existing testing equipment often struggles to meet this requirement. Furthermore, during the pressing process, the pressure head can easily move the FPC, causing the gold fingers to shift position. Utility Model Content

[0004] The primary objective of this invention is to provide a ribbon cable carrier assembly that can effectively prevent the positional displacement of the gold fingers on a flexible circuit board.

[0005] The second objective of this invention is to provide a cable testing device comprising an upper cable carrier board assembly.

[0006] To achieve the aforementioned first objective, this utility model provides a ribbon cable carrier assembly, including a tray, a needle template adapter plate, and a vacuum assembly. The tray is provided with a product placement slot and a needle template. The needle template is located at the bottom of the product placement slot and has an adsorption cavity, an insertion hole, and a first through hole. The insertion hole and the first through hole are both located below the adsorption cavity, and the adsorption cavity is connected to the product placement slot, the insertion hole, and the first through hole, respectively. The needle template adapter plate is located below the tray and has a probe. The upper part of the probe is inserted into the insertion hole. The vacuum assembly is connected to the adsorption cavity through the first through hole. The tray can move relative to the probe along the extension direction of the probe, so that the top of the probe can protrude out of the adsorption cavity and extend into the product placement slot.

[0007] As can be seen from the above scheme, by setting an insertion hole below the adsorption chamber, the gold fingers of the product to be tested are first adsorbed and fixed using the vacuum adsorption principle, which effectively prevents the positional displacement of the gold fingers during the subsequent pressing process. Then, the support plate moves the product to be tested relative to the probe downward, so that the conductive contacts of the gold fingers contact the top of the probe, realizing the electrical connection between the two, so that the product to be tested can be connected to the detection circuit, facilitating the simulation testing of its various electrical performance indicators. This utility model also has the advantages of simple structure, convenient operation, and high accuracy of test results.

[0008] A further embodiment is that the cable carrier assembly also includes a mounting plate, a needle guide plate, and a needle die back pressure plate; the mounting plate is set on the tray, and a mounting groove is opened through the middle of the mounting plate, with the product placement groove exposed in the mounting groove; the needle guide plate and the needle die back pressure plate are arranged vertically between the tray and the needle die adapter plate, and a preset gap is provided between the tray and the needle guide plate, and an elastic element and a guide component are provided between the tray and the needle guide plate.

[0009] As can be seen from the above scheme, by setting a preset gap between the tray and the needle plate, sufficient space is reserved for the downward movement of the tray; by setting a guide component, the vertical movement of the tray is accurately controlled to avoid horizontal misalignment that could lead to probe breakage; by setting an elastic element, the tray can automatically move back to its initial position under the elastic force of the elastic element after it moves downward.

[0010] A further embodiment includes a cable carrier plate assembly, a needle die adapter plate mounted on the cable carrier plate, a second through hole on the cable carrier plate, a third through hole on the needle plate, a fourth through hole on the needle die rear pressure plate, and a fifth through hole on the needle die adapter plate. The first, third, fourth, and fifth through holes are connected vertically to the second through hole. The vacuum assembly includes a vacuum generator, an air pipe, and a vacuum hood. The vacuum generator is connected to the vacuum hood via the air pipe. The vacuum hood is mounted on the bottom wall of the cable carrier plate and has a vacuum chamber. The second through hole is connected to the vacuum chamber.

[0011] As can be seen from the above scheme, with the above settings, the air tube is only connected to the vacuum hood, and the vacuum hood is connected to the first perforation through the perforations, without the need for an additional air tube, thereby avoiding the up-and-down movement of the tray from squeezing the air tube and ensuring a stable vacuum adsorption effect.

[0012] A further design involves providing two first positioning posts and two cable guide blocks on the cable base plate, with the two cable guide blocks positioned at the two corners of the mounting plate. First positioning holes 62 are provided at both ends of the mounting plate, and the two first positioning holes 62 are positioned and engaged with the two first positioning posts.

[0013] As can be seen from the above scheme, both the cable guide block and the first positioning post are used to position the mounting plate and restrict the horizontal movement of the mounting plate.

[0014] A further option is to install a second positioning post inside the product placement slot, with the free end of the second positioning post protruding upwards from the product placement slot.

[0015] As can be seen from the above scheme, the second positioning post is used to cooperate with the positioning of the product to be tested, so as to ensure that the product to be tested is accurately placed in the product placement slot.

[0016] To achieve the second objective mentioned above, this utility model provides a ribbon cable testing device, including a base box assembly, a pressing assembly, and a ribbon cable carrier assembly. The pressing assembly and the ribbon cable carrier assembly are both mounted on the base box assembly. The pressing assembly includes a pressing drive device, a movable plate, and a pressure plate assembly. The pressure plate assembly is mounted on the movable plate and is vertically aligned with the product placement slot. The pressing drive device drives the movable plate and the pressure plate assembly to move up and down.

[0017] As can be seen from the above scheme, the pressure plate assembly is used to press the product into the product placement slot and push the tray of the ribbon cable carrier assembly and the product to be tested on it downward together, so that the top of the probe protrudes from the insertion hole and extends into the product placement slot to make electrical connection with the conductive contact of the gold finger of the product to be tested, so as to connect the product to be tested into the testing circuit.

[0018] A further option is to detachably connect the pressure plate assembly to the movable plate.

[0019] As can be seen from the above solution, it is convenient to replace the corresponding pressure plate assembly according to different products to be tested, or to replace the pressure plate assembly in a timely manner when the pressure plate assembly is damaged.

[0020] A further solution is to provide a fixing component and two slides on the movable plate, with the two slides facing each other and an inlet / outlet on one side of the slides; the two sides of the pressure plate component are respectively embedded in the corresponding slides, and the fixing component is used to prevent the pressure plate component from detaching from the slides.

[0021] As can be seen from the above scheme, the pressure plate assembly enters the slide from the inlet and outlet, and the fixing component prevents the pressure plate assembly from accidentally leaving the slide.

[0022] A further option is that the pressure plate assembly includes a fixed plate, elastic positioning posts, and a pressure head. The pressure head is connected to the fixed plate through the elastic positioning posts and is located below the fixed plate. The pressure head can move up and down elastically.

[0023] As can be seen from the above scheme, by setting up elastic positioning columns, the pressure head can move up and down elastically, which can not only play a buffering role, but also slowly push the pallet and product downward.

[0024] A further option is that the bottom box assembly includes a box body, a side cover, and a control module. The control module is mounted on the box body, and an opening is provided on at least one side of the box body. The side cover is detachably mounted in the opening. Attached Figure Description

[0025] Figure 1 This is a structural diagram from a first-view perspective of an embodiment of the ribbon cable carrier assembly of this utility model.

[0026] Figure 2 This is a structural diagram from a second perspective of an embodiment of the ribbon cable carrier assembly of this utility model.

[0027] Figure 3 This is an exploded view of an embodiment of the ribbon cable carrier assembly of this utility model.

[0028] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0029] Figure 5 This is a top view of an embodiment of the ribbon cable carrier assembly of this utility model.

[0030] Figure 6 yes Figure 5 Sectional view at point BB.

[0031] Figure 7 yes Figure 6 A magnified view of point C in the middle.

[0032] Figure 8 This is a structural diagram of an embodiment of the cable testing device of this utility model.

[0033] Figure 9 This is an exploded view of the lower pressure component and the pressure plate component in an embodiment of the cable testing device of this utility model.

[0034] Figure 10 This is a cross-sectional view of the pressure component in an embodiment of the cable testing device of this utility model.

[0035] The present invention will be further described below with reference to the accompanying drawings and embodiments. Detailed Implementation

[0036] Example of a ribbon cable carrier assembly: See Figures 1 to 4 The cable carrier assembly 10 provided in this embodiment includes a cable base plate 1, a needle mold adapter plate 2, a needle mold rear pressure plate 3, a needle-passing plate 4, a support plate 5, a mounting plate 6, and a vacuum assembly 7.

[0037] The cable tray base plate 1 is provided with clearance holes, two first positioning posts 11, and two "L"-shaped cable guide blocks 12. The clearance holes are used to avoid electrical components of the needle mold adapter plate 2. The two cable guide blocks 12 are arranged opposite each other and spaced apart by a first preset distance. The mounting plate 6 is disposed between the two cable guide blocks 12, and the corners of the mounting plate 6 abut against the cable guide blocks 12. The two first positioning posts 11 are arranged opposite each other and spaced apart by a second preset distance. The first positioning posts 11 are positioned and engaged with the first positioning holes 62 on both ends of the mounting plate 6.

[0038] The needle mold adapter plate 2 is mounted on the ribbon cable base plate 1. The needle mold adapter plate 2 is a circuit board containing a detection circuit. Three sets of probe groups 21 are mounted on the needle mold adapter plate 2, each containing multiple probes 211. The number of probes 211 in the three sets of probe groups 21 may be equal or unequal. Each probe 211 is electrically connected to the detection circuit. Each probe 211 passes upwards through the needle mold back pressure plate 3, the needle guide plate 4, and the needle template 52 to electrically connect with the conductive contact of the gold finger of the product to be tested.

[0039] To ensure the accurate positioning of the probe group 21, the needle template adapter plate 2 in this embodiment is provided with second positioning holes 23 on both sides, and the second positioning holes 23 are positioned and engaged with the first positioning post 11.

[0040] The tray 5 is positioned above the needle mold adapter plate 2. The tray 5 has a product placement slot 51 and three needle templates 52. The product to be tested is placed in the product placement slot 51, and the three needle templates 52 are respectively positioned to correspond to the three gold fingers of the product to be tested. The needle templates 52 are positioned at the bottom of the product placement slot 51, and the product to be tested is positioned above the needle templates 52.

[0041] The mounting plate 6 is positioned above the tray 5, limiting the horizontal and upward movement of the tray 5. A mounting groove 61 is formed through the center of the mounting plate 6, exposing the product placement slot 51 within it. Stepped grooves are provided around the mounting groove 61, and stepped portions 53 matching these grooves are provided along the edges of the tray 5.

[0042] See Figures 3 to 7The needle-passing plate 4 and the needle mold rear pressure plate 3 are arranged vertically between the tray 5 and the needle mold transfer plate 2, and a preset gap is provided between the tray 5 and the needle-passing plate 4, so that the tray 5 can move downwards towards the needle-passing plate 4 by a preset distance, the maximum of which is the height of the preset gap. An elastic element 8 and a guide assembly 9 are provided between the tray 5 and the needle-passing plate 4. Multiple elastic elements 8 are provided, preferably distributed along the contour of the product placement groove 51, to ensure that the tray 5 and the product to be tested can move smoothly up and down. The elastic element 8 can generate an upward elastic force on the tray 5, ensuring that the tray 5 can move upwards to its initial position. The guide assembly 9 includes a guide post 91 and a guide sleeve 92. One of the guide post 91 and the guide sleeve 92 is provided on the bottom wall of the tray 5, and the other is simultaneously provided in the needle-passing plate 4 and the needle mold rear pressure plate 3. The guide post 91 and the guide sleeve 92 are positioned and engaged, such as... Figure 6 As shown.

[0043] The needle template 52 has an adsorption cavity 521, a first through hole 522, and multiple insertion holes 523. The adsorption cavity 521 is located below the product placement slot 51. The multiple insertion holes 523 are arranged in two rows, with the two rows of insertion holes 523 respectively located on both sides of the first through hole 522. Both the insertion holes 523 and the first through hole 522 are located below the adsorption cavity 521. The adsorption cavity 521 communicates with the product placement slot 51, the insertion holes 523, and the first through hole 522. The multiple insertion holes 523 are arranged one-to-one with the multiple probes 211 in the same probe group 21, with the upper part of the probe 211 inserted into the insertion hole 523.

[0044] Under normal conditions, the top of probe 211 is lower than the bottom wall of product placement slot 51. When testing is required, the tray 5 can move the needle template 52 and the product to be tested together along the extension direction of probe 211 relative to probe 211, so that the top of probe 211 can protrude out of adsorption cavity 521 and extend into product placement slot 51, so that probe 211 can contact the conductive contact of the gold finger of the product to be tested.

[0045] To prevent the product under test from shifting position before testing, this embodiment also includes a vacuum assembly 7. The vacuum assembly 7 is connected to the adsorption chamber 521 through the first perforation 522 and uses the vacuum adsorption principle to firmly hold the gold fingers of the product under test, ensuring that all conductive contacts inside the gold fingers can be connected one-to-one with multiple probes 211.

[0046] The vacuum assembly 7 includes a vacuum generator, a gas pipe, and two vacuum chambers 71. The vacuum generator is connected to the two vacuum chambers 71 via the gas pipe. The vacuum chambers 71 are mounted on the bottom wall of the cable tray base plate 1. One vacuum chamber 71 is positioned below one of the needle templates 52, allowing it to communicate with the first through hole 522 of that needle template 52. The other vacuum chamber 71 is positioned below the other two needle templates 52, facilitating simultaneous communication with the first through holes 522 of both needle templates 52. Each vacuum chamber 71 has a vacuum chamber.

[0047] The base plate 1 of the cable tray has three second through holes 13; the needle plate 4 has three third through holes 41; the needle die back pressure plate 3 has three fourth through holes 31; the needle die adapter plate 2 has three fifth through holes 22; the three second through holes 13, the three fifth through holes 22, the three fourth through holes 31, and the three third through holes 41 are all corresponding to and connected to the three first through holes 522.

[0048] To ensure that the product to be tested is accurately placed into the product placement slot 51, a second positioning post 54 is provided in the product placement slot 51. The free end of the second positioning post 54 protrudes upward from the product placement slot 51 and is used to position and cooperate with the third positioning hole of the product to be tested, so that the product to be tested is first placed on the second positioning post 54 and then falls into the product placement slot 51 to ensure that its placement position is accurate.

[0049] Example of a ribbon cable testing device: See Figures 8 to 10 The ribbon cable testing device provided in this embodiment includes a base box assembly 20, a pressing assembly 30, and a ribbon cable carrier board assembly 10 as described in the above embodiment.

[0050] The base assembly 20 includes a housing 201, a control module 202, and two side covers 203. The housing 201 has an internal cavity for housing electrical components, required valves, and a vacuum generator. The control module 202 is located on the front of the housing 201 for easy user operation. Openings are provided on both the left and right sides of the housing 201, and the side covers 203 are detachably installed within the corresponding openings, allowing users to easily install or remove the side covers 203 from either side.

[0051] All cable carrier assemblies 10 are mounted on the base box assembly 20. The cable base plate 1 of the cable carrier assembly 10 can form the top wall of the base box assembly 20, and the pressing assembly 30 is mounted on the cable base plate 1.

[0052] The pressing assembly 30 includes a mounting frame 301, a pressing drive device 302, a movable plate 303, and a pressure plate assembly 304. The pressing drive device 302 is located on top of the mounting frame 301, and the movable plate 303 is vertically movably positioned in the middle of the mounting frame 301. The pressure plate assembly 304 is mounted on the movable plate 303 and is vertically aligned with the product placement slot 51. The pressing drive device 302 drives the movable plate 303 and the pressure plate assembly 304 to move vertically, thereby pushing the product to be tested and the tray 5 downwards by a preset distance. The pressing drive device 302 is preferably a pneumatic cylinder or a hydraulic cylinder.

[0053] The pressure plate assembly 304 is detachably connected to the movable plate 303. Specifically, the movable plate 303 is provided with two fixing components 3031 and two sliding grooves 3032. The two sliding grooves 3032 are arranged opposite to each other, and the sliding grooves 3032 have an inlet and outlet facing one side; the two sides of the pressure plate assembly 304 are respectively embedded in the corresponding sliding grooves 3032.

[0054] The fixing component 3031 is used to prevent the pressure plate assembly 304 from disengaging from the slide groove 3032. The fixing component 3031 is preferably an indexing pin, which is mainly used to achieve positioning through the extension and retraction of the pin head after relative displacement of two workpieces. The fixing component 3031 includes a first fixing sleeve and a locating pin that can move up and down. The first fixing sleeve is fixed to the movable plate 303. The upper part of the locating pin protrudes from the first fixing sleeve, facilitating the removal of the locating pin by the operator. The lower part of the locating pin protrudes from the second fixing sleeve and is used for insertion into the fixing plate 3041. When the pressure plate assembly 304 is inserted into the slide groove 3032 and moved into position, the operator can manipulate the locating pin to insert the lower part of the locating pin into the fourth locating hole of the pressure plate assembly 304. A locating sleeve 3044 can be installed in the fourth locating hole, and the locating pin and the locating sleeve 3044 are positioned and engaged to improve the positional accuracy of the pressure plate assembly 304.

[0055] The pressure plate assembly 304 includes a fixed plate 3041, multiple elastic positioning posts 3042, and multiple pressure heads 3043. The fixed plate 3041 has stepped portions on its left and right sides that match the sliding grooves 3032. The pressure heads 3043 are suspended below the fixed plate 3041 via the elastic positioning posts 3042. Each elastic positioning post 3042 includes a second fixing sleeve, a spring, and a column body. The column body is inserted into the second fixing sleeve, and the spring elastically abuts against the column body and the fixing sleeve, allowing the column body to move elastically up and down. The column body penetrates the fixed plate 3041, and the pressure heads 3043 are connected to the lower part of the column body, with the upper part of the column body protruding from the second fixing sleeve. The pressure heads 3043 can directly abut against the product to be tested and / or the tray 5 to push the product to be tested and the tray 5 downwards, thereby causing the probe 211 to contact the conductive contact of the product to be tested. Afterwards, relevant tests can be performed.

[0056] In summary, this invention, by setting an insertion hole below the adsorption chamber, first uses the vacuum adsorption principle to adsorb and fix the gold fingers of the product to be tested, effectively preventing the gold fingers from shifting position during subsequent pressing. Then, the support plate moves the product to be tested relative to the probe downward, so that the conductive contacts of the gold fingers contact the top of the probe, achieving electrical connection between the two, thus connecting the product to the testing circuit for convenient simulation testing of its various electrical performance indicators. This invention also has the advantages of simple structure, convenient operation, and high accuracy of test results.

[0057] Finally, it should be emphasized that the above are only preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cable carrier assembly, comprising a tray, wherein the tray is provided with a product placement slot, characterized in that: The tray is provided with a needle template, which is located at the bottom of the product placement slot. The needle template has an adsorption cavity, an insertion hole and a first through hole. The insertion hole and the first through hole are both located below the adsorption cavity. The adsorption cavity is connected to the product placement slot, the insertion hole and the first through hole respectively. The cable carrier assembly further includes a needle mold adapter plate and a vacuum assembly. The needle mold adapter plate is disposed below the tray, and a probe is disposed on the needle mold adapter plate. The upper part of the probe is inserted into the insertion hole. The vacuum assembly communicates with the adsorption cavity through the first through hole. The tray can move relative to the probe along the extension direction of the probe, so that the top of the probe protrudes out of the adsorption cavity and extends into the product placement slot.

2. The cable carrier assembly according to claim 1, characterized in that: The cable carrier assembly also includes a mounting plate, a needle guide plate, and a needle die back pressure plate; The mounting plate is disposed on the tray, and a mounting groove is formed through the middle of the mounting plate, with the product placement slot exposed in the mounting groove; The needle guide plate and the needle die rear pressure plate are arranged vertically between the support plate and the needle die adapter plate, and a preset gap is provided between the support plate and the needle guide plate. An elastic element and a guide assembly are provided between the support plate and the needle guide plate.

3. The cable carrier assembly according to claim 2, characterized in that: The cable carrier plate assembly also includes a cable base plate, the needle mold adapter plate is disposed on the cable base plate, the cable base plate has a second through hole, the needle plate has a third through hole, the needle mold rear pressure plate has a fourth through hole, and the needle mold adapter plate has a fifth through hole. The first through hole, the third through hole, the fourth through hole, the fifth through hole and the second through hole are connected vertically. The vacuum assembly includes a vacuum generator, an air pipe, and a vacuum hood. The vacuum generator is connected to the vacuum hood through the air pipe. The vacuum hood is mounted on the bottom wall of the cable tray base plate and has a vacuum chamber. The second perforation is connected to the vacuum chamber.

4. The cable carrier assembly according to claim 3, characterized in that: The cable base plate is provided with two first positioning posts and two cable guide blocks, and the two cable guide blocks are respectively located on the two corners of the mounting plate; The mounting plate has first positioning holes (62) at both ends, and the two first positioning holes (62) are positioned and engaged with the two first positioning posts.

5. The cable carrier assembly according to claim 1, characterized in that: A second positioning post is provided in the product placement slot, and the free end of the second positioning post protrudes upward from the product placement slot.

6. A cable testing device, characterized in that: The device includes a base box assembly, a pressing assembly, and a ribbon cable carrier assembly as described in any one of claims 1 to 5, wherein the pressing assembly and the ribbon cable carrier assembly are both disposed on the base box assembly. The pressing assembly includes a pressing drive device, a movable plate, and a pressure plate assembly. The pressure plate assembly is disposed on the movable plate and is vertically corresponding to the product placement slot. The pressing drive device drives the movable plate and the pressure plate assembly to move up and down.

7. The ribbon cable testing device according to claim 6, characterized in that: The pressure plate assembly is detachably connected to the movable plate.

8. The cable testing device according to claim 7, characterized in that: The movable plate is provided with a fixing component and two sliding grooves, which are arranged opposite to each other, and each sliding groove has an inlet and outlet on one side. The pressure plate assembly is embedded in the corresponding slide groove on both sides, and the fixing component is used to prevent the pressure plate assembly from disengaging from the slide groove.

9. The ribbon cable testing device according to claim 6, characterized in that: The pressure plate assembly includes a fixed plate, an elastic positioning post, and a pressure head. The pressure head is connected to the bottom of the fixed plate through the elastic positioning post, and the pressure head can move up and down elastically.

10. The ribbon cable testing device according to claim 6, characterized in that: The bottom box assembly includes a box body, a side cover, and a control module. The control module is disposed on the box body, and an opening is provided on at least one side of the box body. The side cover is detachably disposed in the opening.

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