CN216622582U - Testing device for optical module printed circuit board - Google Patents
Testing device for optical module printed circuit board Download PDFInfo
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- CN216622582U CN216622582U CN202122260380.0U CN202122260380U CN216622582U CN 216622582 U CN216622582 U CN 216622582U CN 202122260380 U CN202122260380 U CN 202122260380U CN 216622582 U CN216622582 U CN 216622582U
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Abstract
The utility model discloses a testing device for an optical module printed circuit board, and belongs to the technical field of circuit board production. The device comprises an evaluation plate, a connector arranged on the evaluation plate, a grounding mechanism and a pressing mechanism, wherein a limiting plate is arranged on the evaluation plate, a limiting groove for accommodating the optical module is arranged on one side of the limiting plate, and the connector is arranged in the limiting groove; the grounding mechanism comprises a grounding piece, one end of the grounding piece is fixed on the limiting plate through a fixing piece, and the other end of the grounding piece extends into the limiting groove; the pressing mechanism comprises a pressing block arranged above the limiting groove, the pressing block is arranged in the clamping piece, and the clamping piece is fixed on the limiting plate through a connecting piece. The use environment of the client can be effectively simulated, so that the test accuracy is high, and the test result is guaranteed to have referential property; and the optical module is protected from being damaged by short circuit in a simulated client engineering environment, and the optical module is prevented from being damaged by short circuit of the shell.
Description
Technical Field
The utility model relates to a testing device, in particular to a testing device for an optical module printed circuit board, and belongs to the technical field of circuit board production.
Background
The optical module comprises an optoelectronic device, a functional circuit, an optical interface and the like, wherein the optoelectronic device comprises a transmitting part and a receiving part. The optical module completes photoelectric conversion and electro-optical conversion, namely the optical module has the functions that a transmitting end converts an electric signal into an optical signal, and a receiving end converts the optical signal into the electric signal after the optical signal is transmitted by an optical fiber.
With the rapid development of communication and the increasing exuberance of the demand of cloud computing, the market demand for high-speed optical modules is increasing day by day, and the precision requirement on the optical modules is very high; therefore, in the production and manufacture of optical modules, a series of debugging and testing are required before final assembly and shipment.
At present, the adopted detection device mainly comprises a connector, an evaluation board, an bakelite seat and the like (as shown in fig. 1-2), wherein the connector is connected with the evaluation board, an operator holds the optical module by hand, and inserts a golden finger of the optical module into the connector along a limiting groove in the middle of the bakelite seat, so that the adjustment/test is realized. However, the following technical problems still exist: the optical module shell is not grounded, so that short circuit risk exists; the upper part of the optical module is not compressed, the service condition of a client cannot be effectively simulated, the accuracy of debugging/testing is low, the reference of the obtained result is low, and the like.
In prior art CN209517141U, an "optical module test board structure" is disclosed, wherein: the device comprises a printed circuit board, a power chip welded on the printed circuit board, an MCU (microprogrammed control unit), a serial port module, a radio frequency connector, a QSFP (quad Small form-factor pluggable) optical module, a power socket and a serial port socket; the MCU singlechip is respectively connected with the power supply chip, the serial port module and the QSFP optical module, the serial port module is correspondingly connected with the serial port socket, an external power supply is connected to the power supply chip through the power supply socket, the power supply chip respectively supplies power for the MCU singlechip, the serial port module and the QSFP optical module, the QSFP optical module is connected with the radio frequency connectors through the radio frequency transmission lines, the radio frequency transmission lines are divided into more than two single ends in a differential mode, each single end is connected with one radio frequency connector, and the radio frequency connectors and the radio frequency transmission lines are distributed on the printed circuit board in a fan shape relative to the QSFP optical modules. The utility model discloses a fan-shaped transmission circuit structure RF loss is little, temperature stability is high, makes things convenient for the welding of radio frequency connector and be connected with test equipment. CN210550622U discloses "an optical device testing PCB compressing and fixing device", wherein, specifically disclose: the PCB placing base is provided with a threaded hole at the end part, a PCB placing table is arranged in the middle part, the PCB is placed on the PCB placing base, the pressing cover is pressed on the PCB, and the PCB and the pressing cover are fixed on the PCB placing base through screws; the cover body covers PCB and places the base outside, and the cover body outside is equipped with the stationary dog, and the cover body passes through the stationary dog to be fixed on the aassessment board. In the simulated optical module test environment, the PCB and the evaluation board are fixed, so that the position deviation of the PCB is avoided, the signal transmission is good, the product test consistency is ensured, and the PCB loss is reduced.
Disclosure of Invention
The utility model aims to solve the problem that the optical module shell is not grounded and has short circuit risk in the prior art when the optical module is debugged and tested; and the upper part of the optical module is not compressed, so that the use condition of a client cannot be effectively simulated, the problems that the accuracy of debugging/testing is low, the reference of the obtained result is low and the like are caused, and the testing device for the optical module printed circuit board is provided.
In order to achieve the technical purpose, the following technical scheme is proposed:
a testing device for an optical module printed circuit board comprises an evaluation board, a connector arranged on the evaluation board, a grounding mechanism and a pressing mechanism, wherein a limiting plate is arranged on the evaluation board, a limiting groove for accommodating an optical module is formed in one side of the limiting plate, and the connector is arranged in the limiting groove; a pressing fixing piece for fixing the pressing mechanism is arranged above the limiting groove;
the grounding mechanism comprises a probe, one end of the probe is fixed on the limiting plate through a probe fixing piece, and the other end of the probe extends into the limiting groove. When the optical module is inserted into the limiting groove, a golden finger on the optical module is inserted into the connector, and the grounding piece is in contact with the optical module shell to realize grounding of the optical module shell, so that short circuit risk in the test process is prevented;
the pressing mechanism comprises a pressing block sleeved on the pressing fixing piece, and the pressing block is arranged above the limiting groove.
Furthermore, an opening I through which the lower part of the pressing block can freely pass is formed in the pressing and fixing piece, and the lower part of the pressing block is sleeved in the opening I (namely the cross sectional area of the lower part of the pressing block is smaller than that of the opening I); the limiting plate is also provided with a clamping piece, the clamping piece is provided with an opening II through which the upper part of the pressing block can freely pass, and the upper part of the pressing block is sleeved in the opening II (namely the cross sectional area of the upper part of the pressing block is smaller than that of the opening II);
the middle part of the pressing block is provided with a positioning piece for positioning the pressing block on the pressing and fixing piece.
Furthermore, the longitudinal section of compressing tightly the mounting is the shape of falling U, and opening I sets up at compressing tightly the mounting top. Compress tightly the setting of mounting shape, provide accommodation space for the optical module when inserting the spacing groove, and then for the test procedure provides assorted testing arrangement, improve the practicality of this device promptly.
Further, the longitudinal section of the clamping piece is in an inverted U shape, the lower part of the clamping piece is sleeved on the compressing fixing piece, and the opening II is arranged at the top of the clamping piece; the locating piece is arranged between the opening I and the opening II, and a spring is arranged on the locating piece and extends towards the top of the clamping piece. Due to the gravity of the pressing block and the adjustment of the combination spring and the positioning piece, the pressing block provides continuous downward acting force for the optical module and acts on the longitudinal compression of the optical module.
Furthermore, the positioning piece is square, the cross-sectional area of the positioning piece is larger than that of the opening I (namely, the cross-sectional area of the positioning piece is larger than that of the lower part of the pressing block), and the cross-sectional area of the positioning piece is larger than that of the opening II (namely, the cross-sectional area of the positioning piece is larger than that of the upper part of the pressing block). Through the arrangement of the positioning piece, the pressing block is prevented from directly falling into the limiting groove due to gravity after the optical module is taken away; or the pressing block slides out of the clamping piece due to the jacking force of the optical module.
The positional relationships such as "one side", "one end", "the other end", "inside", "upper" and "lower" in the present technical solution are defined according to the actual usage state, and are conventional terms in the technical field and also conventional terms in the actual usage process of the person skilled in the art.
By adopting the technical scheme, the beneficial technical effects brought are as follows:
1) the utility model has simple structure and reasonable design, can effectively improve the test accuracy and provide reliable test results for product delivery;
2) according to the utility model, through the arrangement of the grounding mechanism, the problem that the optical module shell is not grounded and has short circuit risk in the prior art is solved, namely, the optical module is protected from being damaged by short circuit in a simulated client engineering environment, and the optical module is prevented from being damaged due to the short circuit of the shell;
3) according to the utility model, through the arrangement of the pressing mechanism, the use environment of the client can be effectively simulated, so that the test accuracy is high, and the reference of the test result is ensured.
Drawings
FIG. 1 is a schematic diagram of a prior art testing apparatus;
FIG. 2 is a diagram illustrating a state of the art testing device;
FIG. 3 is a schematic structural diagram of the present invention;
FIG. 4 is a schematic structural diagram (two) of the present invention;
FIG. 5 is an exploded view of the present invention;
FIG. 6 is a state diagram of the present invention in use;
FIG. 7 is a top view of the present invention;
FIG. 8 is a right side view of the present invention;
FIG. 9 is a right side cross-sectional view of the present invention;
FIG. 10 is a schematic structural view of a briquette according to the present invention;
in the figure, 1, an evaluation plate, 2, a probe fixing piece, 3, a limiting plate, 4, a pressing fixing piece, 5, a probe, 6, a connector, 7, a clamping piece, 8, a pressing block, 81, an upper pressing block part, 82, a lower pressing block part, 83, a positioning piece, 9, a spring, 10, a limiting groove, 11, an optical module, 12, openings I and 13 and an opening II are arranged.
Detailed Description
In the following, the technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 3: a testing device for an optical module printed circuit board comprises an evaluation board 1, a connector 6 arranged on the evaluation board 1, a grounding mechanism and a pressing mechanism, wherein a limiting plate 3 is arranged on the evaluation board 1, a limiting groove 10 used for accommodating an optical module 11 is arranged on one side of the limiting plate 3, and the connector 6 is arranged in the limiting groove 10; a pressing fixing piece 4 for fixing the pressing mechanism is arranged above the limiting groove 10;
the grounding mechanism comprises a probe 5, one end of the probe 5 is fixed on the limiting plate 3 through the probe fixing piece 2, and the other end of the probe extends into the limiting groove 10. As shown in fig. 6-7: when the optical module 11 is inserted into the limiting groove 10, a golden finger on the optical module 11 is inserted into the connector 6, and the grounding piece contacts the shell of the optical module 11, so that the shell of the optical module 11 is grounded, and the short circuit risk in the test process is prevented;
the pressing mechanism comprises a pressing block 8 sleeved on the pressing fixing piece 4, and the pressing block 8 is arranged above the limiting groove 10.
Example 2
Based on the embodiment 1, the present embodiment is further,
as shown in fig. 5: an opening I12 through which a lower pressing block part 82 can freely pass is formed in the pressing and fixing part 4, and the lower pressing block part 82 is sleeved in the opening I12 (namely the cross sectional area of the lower pressing block part 82 is smaller than that of the opening I12); the limiting plate 3 is also provided with a clamping piece 7, the clamping piece 7 is provided with an opening II 13 through which the upper part 81 of the pressing block can freely pass, and the upper part 81 of the pressing block is sleeved in the opening II 13 (namely the cross section area of the upper part 81 of the pressing block is smaller than that of the opening II 13);
the middle part of the pressing block 8 is provided with a positioning piece 83 for positioning the pressing block 8 on the pressing and fixing piece 4.
Example 3
Based on examples 1-2, this example was further,
as shown in fig. 4: the longitudinal section of compressing tightly the mounting 4 is the shape of falling U, and opening I12 sets up at compressing tightly the mounting 4 top. The setting of compressing tightly mounting 4 shape provides accommodation space for optical module 11 inserts when spacing groove 10, and then provides assorted testing arrangement for the test procedure, improves the practicality of this device promptly.
Example 4
Based on examples 1-3, this example was further,
as shown in fig. 4: the longitudinal section of the clamping piece 7 is in an inverted U shape, the lower part of the clamping piece 7 is sleeved on the pressing fixing piece 4, and the opening II 13 is arranged at the top of the clamping piece 7; the positioning piece 83 is arranged between the opening I12 and the opening II 13, the spring 9 is arranged on the positioning piece 83, and the spring 9 extends towards the top of the clamping piece 7 (as shown in figures 8-9). Due to the gravity of the pressing block 8 and the adjustment of the combination spring 9 and the positioning member 83, the pressing block 8 provides a continuous downward acting force for the optical module 11, and acts on longitudinally pressing the optical module 11.
Example 5
Based on examples 1-4, this example was further,
as shown in fig. 10: the positioning member 83 is square, the cross-sectional area of the positioning member 83 is larger than that of the opening i 12 (i.e., the cross-sectional area of the positioning member 83 is larger than that of the lower part 82 of the pressing block), and the cross-sectional area of the positioning member 83 is larger than that of the opening ii 13 (i.e., the cross-sectional area of the positioning member 83 is larger than that of the upper part 81 of the pressing block). Through the arrangement of the positioning piece 83, the pressing block 8 is prevented from directly falling into the limiting groove 10 due to gravity after the optical module 11 is taken away; or the pressing block 8 slides out of the clamping piece 7 due to the jacking force of the optical module 11.
Claims (5)
1. A testing device for optical module printed circuit boards, comprising an evaluation board (1) and a connector (6) arranged on the evaluation board (1), characterized in that: the evaluation board (1) is provided with a limiting plate (3), one side of the limiting plate (3) is provided with a limiting groove (10) for accommodating an optical module (11), and the connector (6) is arranged in the limiting groove (10); a pressing fixing piece (4) for fixing the pressing mechanism is arranged above the limiting groove (10);
the grounding mechanism comprises a probe (5), one end of the probe (5) is fixed on the limiting plate (3) through a probe fixing piece (2), and the other end of the probe extends into the limiting groove (10);
the pressing mechanism comprises a pressing block (8) sleeved on the pressing fixing piece (4), and the pressing block (8) is arranged above the limiting groove (10).
2. The test device for a light module printed circuit board according to claim 1, characterized in that: an opening I (12) through which a lower pressing block part (82) can freely pass is arranged on the pressing fixing piece (4), and the lower pressing block part (82) is sleeved in the opening I (12); the limiting plate (3) is also provided with a clamping piece (7), the clamping piece (7) is provided with an opening II (13) through which the upper part (81) of the pressing block can freely pass, and the upper part (81) of the pressing block is sleeved in the opening II (13);
the middle part of the pressing block (8) is provided with a positioning piece (83) for positioning the pressing block (8) on the pressing fixing piece (4).
3. The test device for a light module printed circuit board according to claim 2, characterized in that: the longitudinal section of the pressing fixing piece (4) is in an inverted U shape, and the opening I (12) is formed in the top of the pressing fixing piece (4).
4. A testing device for a light module printed circuit board according to claim 2 or 3, characterized in that: the longitudinal section of the clamping piece (7) is in an inverted U shape, the lower part of the clamping piece (7) is sleeved on the pressing fixing piece (4), and the opening II (13) is arranged at the top of the clamping piece (7); the positioning piece (83) is arranged between the opening I (12) and the opening II (13), a spring (9) is arranged on the positioning piece (83), and the spring (9) extends towards the top of the clamping piece (7).
5. The test device for a light module printed circuit board according to claim 4, characterized in that: the positioning piece (83) is square, the cross sectional area of the positioning piece (83) is larger than that of the opening I (12), and the cross sectional area of the positioning piece (83) is larger than that of the opening II (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122260380.0U CN216622582U (en) | 2021-09-17 | 2021-09-17 | Testing device for optical module printed circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122260380.0U CN216622582U (en) | 2021-09-17 | 2021-09-17 | Testing device for optical module printed circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216622582U true CN216622582U (en) | 2022-05-27 |
Family
ID=81692184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122260380.0U Active CN216622582U (en) | 2021-09-17 | 2021-09-17 | Testing device for optical module printed circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216622582U (en) |
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2021
- 2021-09-17 CN CN202122260380.0U patent/CN216622582U/en active Active
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