CN219203675U

CN219203675U - Data transmission line connected with aging test board

Info

Publication number: CN219203675U
Application number: CN202223597761.9U
Authority: CN
Inventors: 陈忠友; 温端林
Original assignee: Jinshitong Storage Technology Dongguan Co ltd
Current assignee: Jinshitong Storage Technology Dongguan Co ltd
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-06-16
Anticipated expiration: 2032-12-28

Abstract

The utility model relates to the technical field of burn-in testing, in particular to a data transmission line connected with a burn-in board, which comprises a first end, a second end and a wire harness assembly connected between the first end and the second end; the inside of wire harness assembly is provided with the transmission layer and is used for transmitting the signal of telecommunication, and the periphery of transmission layer is provided with the insulating layer and is used for the isolated signal of telecommunication, and the periphery of insulating layer is provided with the shielding layer and is used for shielding interference signal, and the periphery of shielding layer is provided with the insulating layer and is used for isolated high temperature, and the periphery of insulating layer is provided with the protective layer and is used for protecting whole wire harness assembly. Due to the arrangement of the shielding layer, radiation generated at high temperature can be shielded, and the heat insulation layer is arranged, so that the cable is prevented from being influenced by high temperature when working in a high-temperature environment, data transmission is more stable, loss of transmission electric signals is avoided, normal transmission of test data is not influenced, normal running of test work is guaranteed, and production efficiency is improved.

Description

Data transmission line connected with aging test board

Technical Field

The utility model relates to the technical field of burn-in test, in particular to a data transmission line connected with a burn-in test board.

Background

The high-temperature aging test is a device for simulating high-temperature and severe environment test on high-performance electronic products (such as computer parts, automotive electronic products, power supplies, mainboards, monitors and the like). At present, high-temperature aging technology is generally adopted at home and abroad to improve the stability and reliability of electronic products, and hidden dangers existing in the production processes of defects, welding, assembly and the like of components can be exposed in advance through high-temperature aging, so that the products leaving the factory can withstand time.

For the solid state disk, a testing mode of an aging cabinet is generally adopted, a high-temperature environment is arranged in the aging cabinet, the solid state disk is placed in the high-temperature environment to run, and the service condition of the solid state disk in a severe environment is tested, so that qualified products and defective products are screened out.

In the testing process, it is impossible to place all components of the host in a high-temperature environment, a special test board is arranged, the test board is placed in the high-temperature environment, and other components are placed in a normal-temperature environment. This involves a transmission problem if the test parameters in the high temperature environment are connected to other components of the host. If the traditional cable connection is used, the connection mode is simple, but the transmission signal is unstable, and the test data is easy to lose.

Because the cable needs to pass through the isolating device of high temperature environment, lead to the one end work of cable in high temperature environment, the other end work in normal atmospheric temperature environment, after long-term work, lead to the cable transmission unstable easily, transmission signal loses, leads to test data to not very good save, has influenced normal production test work.

Therefore, how to ensure the normal operation of the cable in two different temperature environments is a technical problem to be solved.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a technical scheme capable of solving the problems.

The utility model provides a data transmission line connected with a burn-in board, which comprises a first end, a second end and a wire harness assembly connected between the first end and the second end; the inside of wire harness assembly is provided with the transmission layer and is used for transmitting the signal of telecommunication, and the periphery of transmission layer is provided with the insulating layer and is used for the isolated signal of telecommunication, and the periphery of insulating layer is provided with the shielding layer and is used for shielding interference signal, and the periphery of shielding layer is provided with the insulating layer and is used for isolated high temperature, and the periphery of insulating layer is provided with the protective layer and is used for protecting whole wire harness assembly.

As a further scheme of the utility model: the first end and the second end are respectively set as card inserting golden fingers of PCI-Express x1 expansion bus standard.

As a further scheme of the utility model: the material of transmission layer is metallic copper, and the material of insulating layer is insulating rubber, and the material of shielding layer is shielding metal mesh, and the material of insulating layer is thermal-insulated foam, and the material of protective layer is soft plastics.

As a further scheme of the utility model: the first end and the second end are respectively provided with a thermoplastic block, and the thermoplastic blocks respectively fixedly connect the first end and the second end with two ends of the wire harness assembly, so that the first end and the second end are stably solidified together.

As a further scheme of the utility model: the wire harness assembly is provided with a plurality of single cables for transmitting electrical signals, and the plurality of single cables are respectively provided with a transmission layer and an insulating layer.

As a further scheme of the utility model: the transmission layer is a conductive metal layer, an insulating layer is sleeved on the outer wall of the conductive metal layer, and the insulating layer is a polyvinyl chloride layer.

As a further scheme of the utility model: a plurality of single cables are combined together to form a cable assembly, a shielding layer is sleeved on the outer wall of the cable assembly, and the shielding layer is a porous aluminum metal net layer.

As a further scheme of the utility model: the outer wall of the shielding layer is provided with a heat insulation layer, and the heat insulation layer is an asbestos fiber layer.

As a further scheme of the utility model: the outer wall of the heat insulation layer is provided with a protective layer, and the protective layer is a soft rubber layer.

Compared with the prior art, the utility model has the beneficial effects that:

due to the arrangement of the shielding layer, radiation generated at high temperature can be shielded, so that data transmission is more stable, and signal loss can not occur. Still through setting up the insulating layer, guaranteed that the cable during operation in high temperature environment can not receive the influence of high temperature to make data transmission more stable, can not produce the loss of transmission signal of telecommunication, can not influence test data's normal transmission, thereby guaranteed test work's normal clear, improved production efficiency.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model;

fig. 3 is a schematic view of the wire harness assembly structure of the present utility model;

fig. 4 is a schematic view of another angle structure of the wire harness assembly of the present utility model.

Reference numerals and names in the drawings are as follows:

11 a first end; 12 a second end; a 20 harness assembly; 21 a transport layer; 22 insulating layers; 23 shielding layers; 24 insulating layers; 25 a protective layer; 31 inserting a card golden finger; 32 thermoplastic blocks; 33 single cables; 34 cable assemblies.

Detailed Description

The following description of the technical solutions in the embodiments of the present utility model will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Embodiment one:

referring to fig. 1 to 4, in an embodiment of the present utility model, a data transmission line for connecting a burn-in board includes a first terminal 11, a second terminal 12, and a harness assembly 20 connected between the first terminal 11 and the second terminal 12; the innermost portion of the wire harness assembly 20 is provided with a transmission layer 21 for transmitting an electric signal, the outer periphery of the transmission layer 21 is provided with an insulation layer 22 for insulating the electric signal, the outer periphery of the insulation layer 22 is provided with a shielding layer 23 for shielding an interference signal, the outer periphery of the shielding layer 23 is provided with a heat insulating layer 24 for insulating a high temperature, and the outer periphery of the heat insulating layer 24 is provided with a protection layer 25 for protecting the whole wire harness assembly 20.

Specifically, in the working scenario of the aging test of the solid state disk, a high temperature area and a normal temperature area are generally required to be set, electronic components such as a power supply, a host, a processor, a test software running environment and the like are placed in the normal temperature area, the solid state disk to be tested is placed in the high temperature area, and in order to test more solid state disks at the same time, a test board is generally used, and a plurality of solid state disks are tested at the same time on one test board. Then, the tested parameters are transmitted to the test host through a data transmission line, and because the tested parameters of the multiple solid state disks are required to be transmitted simultaneously, higher requirements are put on the transmission stability of the data transmission line. And because the data transmission line needs to pass through the normal temperature area and the high temperature area, a higher requirement is placed on the ability of the data transmission line to withstand high temperatures.

In the first embodiment, each single cable 33 inside the cable assembly 20 may be provided with the transmission layer 21, the insulation layer 22, the shielding layer 23 and the insulation layer 24, and then the multiple single cables 33 are combined into the cable assembly 34, and the protective layer 25 is further sleeved on the periphery of the cable assembly 34, so as to protect the whole cable.

As shown in fig. 1, at both ends of the data transmission line, connectors of the PCI-Express x1 expansion bus standard are provided, respectively. The first end 11 and the second end 12 are respectively set as card-inserting golden fingers 31 of PCI-Express x1 expansion bus standard. The material of the transmission layer 21 is copper metal, the material of the insulation layer 22 is rubber insulator, the material of the shielding layer 23 is metal shielding mesh, the material of the heat insulation layer 24 is foam insulation, and the material of the protection layer 25 is soft plastic. Finally, thermoplastic blocks 32 are provided at the first and second ends 11 and 12, respectively, and the thermoplastic blocks 32 fixedly connect the first and second ends 11 and 12, respectively, with both ends of the wire harness assembly 20, thereby stably solidifying together. It will be appreciated that in production, each cable may be produced and then combined together, and all of the cables and the fingers 31 are electrically connected by the production of the thermoplastic block 32 and then cured together to form the thermoplastic block 32.

Embodiment two:

as shown in fig. 2 and 3, in the second embodiment, the insulating layers 22 may be provided on the outer sides of a part of the single cables 33, respectively, with respect to the first embodiment. The wire harness assembly 20 is provided with a plurality of single cables 33 transmitting electric signals, and the plurality of single cables 33 have a transmission layer 21 and an insulation layer 22, respectively. The transmission layer 21 is a conductive metal layer, an insulating layer 22 is sleeved on the outer wall of the conductive metal layer, and the insulating layer 22 is a polyvinyl chloride layer. Then, a plurality of single cables 33 are combined together to form a cable assembly 34, a shielding layer 23 is sleeved on the outer wall of the cable assembly 34, and the shielding layer 23 is a porous aluminum metal net layer. After the shielding layer 23 is arranged on the periphery of the cable assembly 34, a heat insulation layer 24 is arranged on the outer wall of the shielding layer 23, and the heat insulation layer 24 is an asbestos fiber layer. A protective layer 25 is then provided on the outer wall of the insulating layer 24, the protective layer 25 being a soft rubber layer.

Specifically, in the second embodiment, it is not necessary to provide the shielding layer 23 and the heat insulating layer 24 separately for each single cable 33, but after a group of single cables 33 are combined into the cable assembly 34, a shielding layer 23 is sleeved on the periphery of the cable assembly 34, and the heat insulating layer 24 and the protective layer 25 are sleeved on the periphery of the multi-strand cable assembly 34 after the combination, so that the heat insulating layer 24 and the protective layer 25 can be provided integrally, and the cost can be saved.

Embodiment III:

in contrast to the second embodiment, in the third embodiment, the heat insulating layer 24 is mainly disposed on the outer periphery of each of the stranded cable assemblies 34, that is, after the shielding layer 23 is disposed on the outer periphery of the cable assembly 34, the heat insulating layer 24 is disposed on the outer periphery of the shielding layer 23, that is, the heat insulating layers 24 are disposed on the stranded cable assemblies 34, respectively. The multi-strand cable assembly 34 is then assembled into a bundle, and a protective layer 25 is integrally provided around the bundle.

In production, each single cable 33 may be prefabricated, i.e. the transmission copper wire is drawn to a desired diameter, and then an insulating layer 22 is sleeved on the copper wire, where the insulating layer 22 may be a polyvinyl chloride insulating layer 22. After the insulating layer 22 is sleeved, some single cables 33 with the same or similar functions are combined into a cable assembly 34, for example, a power line is combined into one cable assembly 34, and a signal transmission line is combined into another cable assembly 34. The shielding layer 23 is sleeved on the periphery of the one-strand cable assembly 34, and the shielding layer 23 can be a porous net-shaped aluminum metal net layer, so that high-frequency radiation received by the cable is shielded, and signal transmission of the cable is prevented from being influenced.

The cable assemblies 34 with the shielding layers 23 are combined, and the heat insulation layers 24 are arranged on the periphery after the cable assemblies are combined, wherein the heat insulation layers 24 can be asbestos fiber layers, and the data transmission line can normally transmit signals in a high-temperature environment by utilizing the high-temperature resistance and heat insulation characteristics of asbestos. Finally, a protective layer 25 is arranged on the periphery of the heat insulation layer 24, and the protective layer 25 can be a soft rubber layer and is mainly used for protecting the whole cable from being scratched or crushed.

Therefore, the arrangement of the shielding layer 23 and the heat insulation layer 24 can improve the transmission stability and the high temperature resistance of the data transmission line, so that the data transmission line can be used in a high temperature environment and a normal temperature environment at the same time without losing transmission signals, the correct transmission of test data is ensured, and the test efficiency of the solid state disk is improved.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. A data transmission line for connecting burn-in boards, comprising a first end (11), a second end (12), and a harness assembly (20) connected between the first end (11) and the second end (12); the wire harness assembly is characterized in that a transmission layer (21) is arranged at the innermost part of the wire harness assembly (20) and used for transmitting electric signals, an insulating layer (22) is arranged at the periphery of the transmission layer (21) and used for isolating the electric signals, a shielding layer (23) is arranged at the periphery of the insulating layer (22) and used for shielding interference signals, a heat insulating layer (24) is arranged at the periphery of the shielding layer (23) and used for isolating high temperature, and a protective layer (25) is arranged at the periphery of the heat insulating layer (24) and used for protecting the whole wire harness assembly (20).

2. A data transmission line for connecting burn-in boards according to claim 1, wherein the first (11) and second (12) terminals are provided as respective card-insertion fingers (31) of the PCI-Express x1 expansion bus standard.

3. The data transmission line for connecting the aging test board according to claim 1, wherein the transmission layer (21) is made of metallic copper, the insulating layer (22) is made of insulating rubber, the shielding layer (23) is made of shielding metal mesh, the insulating layer (24) is made of insulating foam, and the protective layer (25) is made of soft plastic.

4. A data transmission line for connecting a burn-in board according to claim 1, wherein the first terminal (11) and the second terminal (12) are respectively provided with thermoplastic blocks (32), and the thermoplastic blocks (32) fixedly connect the first terminal (11) and the second terminal (12) with both ends of the wire harness assembly (20), respectively, so as to be stably cured together.

5. A data transmission line connected to a burn-in board according to claim 1, wherein the harness assembly (20) is provided with a plurality of single cables (33) transmitting electric signals, the plurality of single cables (33) having a transmission layer (21) and an insulating layer (22), respectively.

6. The data transmission line connected with the burn-in board according to claim 5, wherein the transmission layer (21) is a conductive metal layer, an insulating layer (22) is sleeved on the outer wall of the conductive metal layer, and the insulating layer (22) is a polyvinyl chloride layer.

7. The data transmission line connected with the aging test board according to claim 6, wherein a plurality of single cables (33) are combined together to form a cable assembly (34), a shielding layer (23) is sleeved on the outer wall of the cable assembly (34), and the shielding layer (23) is a porous aluminum metal net layer.

8. A data transmission line for connecting a burn-in board according to claim 7, wherein a heat insulating layer (24) is provided on the outer wall of the shielding layer (23), and the heat insulating layer (24) is an asbestos fiber layer.

9. The data transmission line connected to the burn-in board according to claim 8, wherein a protective layer (25) is provided on an outer wall of the heat insulating layer (24), and the protective layer (25) is a soft rubber layer.