A PCB board and a server

Abstract

The present invention provides a PCB board and a server. The PCB board includes: a smoke detection device laid in the insulating layer in the exact middle of the PCB board; a deformation induction wire laid in the insulating layer in the exact middle of the PCB board; an induction chip disposed on the main board, the induction chip being connected to the smoke detection device via a first through hole on the PCB board, the induction chip being connected to the deformation induction wire via a second through hole on the PCB board, and the induction chip being configured to detect the smoke smell and bending deformation generated by the PCB board. By using the solution of the present invention, the generation of open flames during the burning of the PCB board can be greatly reduced and the system destruction force can be reduced, and the safety of the computer room and the server system and the stability of the customer network can be improved.

Description

Technical Field

[0001] The present invention relates to the field of computers, and more particularly to a PCB board and a server. Background Art

[0002] With the rapid development of the social economy today, fire safety is of great importance to the country and the people. Therefore, how to effectively monitor fires, control the smoke of fires, and prevent fires in advance is particularly important in today's society. With the continuous development of applications such as cloud data, AI, and big data, the functions of servers are becoming more and more powerful and the configurations are also increasing. The volume of customer applications in online videos, live broadcasts, and transaction services is also increasing continuously, which places higher and higher requirements on the stability of the server operation. Since the online services of customers are generally continuous, once a short circuit anomaly occurs in the server, the services will be interrupted and transaction data will be lost, causing losses to customers. If there is a line anomaly, there will be burned boards and open flames. Therefore, the power supply reliability requirements for the servers in the computer room are also getting higher and higher. In actual applications, there may be more serious hidden dangers. According to a statistical survey data on client problems, the computer rooms of servers are generally unattended, and there are quite a lot of burned boards in the computer rooms currently. Moreover, once a burned board occurs, it will cause the motherboard to be scrapped and there are potential safety risks in the cabinet and chassis system, seriously affecting the safety of the computer room and the property of users. Summary of the Invention

[0003] In view of this, the purpose of the embodiments of the present invention is to provide a PCB board and a server. By using the technical solution of the present invention, it is possible to greatly reduce the generation of open flames of the burned PCB board and reduce the system damage force, and improve the safety of the computer room and the server system and the stability of the customer network.

[0004] Based on the above purpose, one aspect of the embodiments of the present invention provides a PCB board, including:

[0005] A smoke detection device, which is laid in the insulating layer in the middle of the PCB board;

[0006] A deformation induction wire, which is laid in the insulating layer in the middle of the PCB board;

[0007] An induction chip, which is arranged on the main board. The induction chip is connected to the smoke detection device through the first through hole on the PCB board, and the induction chip is connected to the deformation induction wire through the second through hole on the PCB board. The induction chip is configured to detect the smoke smell and bending deformation generated by the PCB board.

[0008] According to an embodiment of the present invention, the smoke detection device includes a smoke detection wire and a smoke detection cloth. When the size of the PCB board is less than or equal to 200mm×200mm, the smoke detection wire is laid in the insulating layer in the middle of the PCB board. When the size of the PCB board is greater than 200mm×200mm, the smoke detection cloth is laid in the insulating layer in the middle of the PCB board.

[0009] According to an embodiment of the present invention, the width of the smoke detection wire is 1-2mm, and the thickness is 2 mils. The smoke detection wire bends according to the shape of the PCB board. The smoke detection wire is more than 5mm away from the edge of the PCB board. The spacing of the bends of the smoke detection wire is less than 10mm, and the bending angle is greater than 45 degrees. The smoke detection wire is more than 30 mils away from the drilled holes on the PCB board. The first through hole is a metal hole, the diameter of the first through hole is 1-3mm, the pad is 0.5mm larger than the first through hole, the first through hole is electrically connected to the smoke detection wire, the error of the first through hole is + / -3 mils, the copper plating thickness is 1 mil, and the spacing between the first through hole and other signals is more than 30 mils.

[0010] According to an embodiment of the present invention, the smoke detection cloth is more than 5mm away from the edge of the PCB board, more than 40 mils away from other holes, and the size of the smoke detection cloth is smaller than the size of the PCB board.

[0011] According to an embodiment of the present invention, the width of the deformation induction wire is 1-2mm, and the thickness is 2 mils. The deformation induction wire is more than 5mm away from the edge of the PCB board. The deformation induction wire bends according to the shape of the PCB board. The spacing of the bends of the deformation induction wire is less than 15mm, and the bending angle is greater than 45 degrees. The deformation induction wire is more than 30 mils away from the drilled holes on the PCB board. The second through hole is a metal hole, the diameter of the second through hole is 1-2mm, the pad is 0.5mm larger than the second through hole, the second through hole is electrically connected to the deformation induction wire, the error of the second through hole is + / -3 mils, the copper plating thickness is 1 mil, and the spacing between the second through hole and other signals is more than 30 mils.

[0012] Another aspect of the embodiments of the present invention also provides a server, which includes a PCB board, and the PCB board includes:

[0013] A smoke detection device, which is laid in the insulating layer in the middle of the PCB board;

[0014] A deformation induction wire, which is laid in the insulating layer in the middle of the PCB board;

[0015] The induction chip is arranged on the main board. The induction chip is connected to the smoke detection device via the first through hole on the PCB board, and the induction chip is connected to the deformation induction wire via the second through hole on the PCB board. The induction chip is configured to detect the smoke smell and bending deformation generated by the PCB board.

[0016] According to an embodiment of the present invention, the smoke detection device includes a smoke detection wire and a smoke detection cloth. When the size of the PCB board is less than or equal to 200mm×200mm, the smoke detection wire is laid in the insulating layer in the middle of the PCB board. When the size of the PCB board is greater than 200mm×200mm, the smoke detection cloth is laid in the insulating layer in the middle of the PCB board.

[0017] According to an embodiment of the present invention, the width of the smoke detection wire is 1-2mm, the thickness is 2mils. The smoke detection wire bends according to the shape of the PCB board. The smoke detection wire is more than 5mm away from the edge of the PCB board. The spacing of the bends of the smoke detection wire is less than 10mm, and the bending angle is greater than 45 degrees. The smoke detection wire is more than 30mils away from the drilled holes on the PCB board. The first through hole is a metal hole, the diameter of the first through hole is 1-3mm, the pad is 0.5mm larger than the first through hole. The first through hole is electrically connected to the smoke detection wire. The error of the first through hole is + / - 3mils, the copper plating thickness is 1mils, and the spacing between the first through hole and other signals is more than 30mils.

[0018] According to an embodiment of the present invention, the smoke detection cloth is more than 5mm away from the edge of the PCB board, more than 40mils away from other holes, and the size of the smoke detection cloth is smaller than the size of the PCB board.

[0019] According to an embodiment of the present invention, the width of the deformation induction wire is 1-2mm, the thickness is 2mils. The deformation induction wire is more than 5mm away from the edge of the PCB board. The deformation induction wire bends according to the shape of the PCB board. The spacing of the bends of the deformation induction wire is less than 15mm, and the bending angle is greater than 45 degrees. The deformation induction wire is more than 30mils away from the drilled holes on the PCB board. The second through hole is a metal hole, the diameter of the second through hole is 1-2mm, the pad is 0.5mm larger than the second through hole. The second through hole is electrically connected to the deformation induction wire. The error of the second through hole is + / - 3mils, the copper plating thickness is 1mils, and the spacing between the second through hole and other signals is more than 30mils.

[0020] The present invention has the following beneficial technical effects: The PCB board provided by the embodiment of the present invention is provided with a smoke detection device laid in the insulating layer in the exact middle of the PCB board; a deformation induction wire laid in the insulating layer in the exact middle of the PCB board; and an induction chip arranged on the main board. The induction chip is connected to the smoke detection device via the first through hole on the PCB board, and the induction chip is connected to the deformation induction wire via the second through hole on the PCB board. The induction chip is configured to detect the smoke smell and bending deformation generated by the PCB board. This technical solution can greatly reduce the generation of open flames during the burning of the PCB board and reduce the system damage, and can improve the safety of the computer room and server system and the stability of the customer network. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other embodiments can be obtained based on these drawings.

[0022] Figure 1 Schematic diagram of a PCB board according to an embodiment of the present invention;

[0023] Figure 2 Schematic diagram of a smoke detection line according to an embodiment of the present invention;

[0024] Figure 3 Schematic diagram of a smoke detection cloth according to an embodiment of the present invention;

[0025] Figure 4 Schematic diagram of a deformation induction wire according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The following describes the embodiments of the present disclosure. However, it should be understood that the disclosed embodiments are merely examples, and other embodiments may take various alternative forms. The drawings are not necessarily drawn to scale; certain features may be exaggerated or minimized to show details of particular components. Therefore, the specific structural and functional details disclosed herein should not be construed as limiting, but merely as a representative basis for teaching those skilled in the art to use the present invention in various ways. As will be understood by those of ordinary skill in the art, the various features shown and described with reference to any one of the drawings may be combined with the features shown in one or more other drawings to produce embodiments that are not explicitly shown or described. The combinations of the shown features provide representative embodiments for typical applications. However, various combinations and modifications of the features consistent with the teachings of the present disclosure may be desirable for certain specific applications or implementations.

[0027] For the above purposes, in the first aspect of the embodiments of the present invention, an embodiment of a PCB board is proposed. Figure 1 The schematic diagram of the PCB board is shown.

[0028] As Figure 1 shown, the PCB board may include:

[0029] A smoke detection device 2, which is laid in the insulating layer in the exact middle of the PCB board 1. The smoke detection device 2 needs to be placed in the position of the middle insulating layer of the PCB board 1. According to the size of the PCB board 1, it can be divided into a detection wire design method and a detection cloth design method. The PCB board with a size within 200mm×200mm uses a smoke detection wire, and the PCB board with a size above 200mm×200mm uses a smoke detection cloth. When the induction chip detects the smoke smell on the PCB board 1, it sends a message to the management chip powered by the main power supply, and the management chip powered by the main power supply immediately cuts off the power.

[0030] It further includes a deformation induction wire 3, which is laid in the insulating layer in the exact middle of the PCB board 1. The deformation induction wire 3 is pressed into the insulating layer in the exact middle of the PCB board 1. Generally, the material will bend after being burned at a high temperature. When bending deformation occurs, the deformation induction wire will change. When the change occurs, the induction chip will detect the change and send the information to the management chip in time. The management chip issues an alarm and cuts off the power in time to avoid the situation of the PCB board burning.

[0031] An induction chip, which is arranged on the main board. The induction chip is connected to the smoke detection device 2 via the first through hole 4 on the PCB board 1, and the induction chip is connected to the deformation induction wire 3 via the second through hole 5 on the PCB board 1. The induction chip is configured to detect the smoke smell and bending deformation generated by the PCB board 1. The induction chip is connected to the management chip of the main board. When detecting the smoke smell and / or bending deformation generated by the PCB board 1, it sends a corresponding signal to the management chip, and the management chip issues an alarm and cuts off the power in time.

[0032] Through the technical solution of the present invention, it is possible to greatly reduce the generation of open flames for the PCB board to burn and reduce the system damage force, and improve the safety of the computer room and the server system as well as the stability of the customer network.

[0033] The PCB board includes an insulating layer, which is a thin insulating material of the PCB and is mainly used as an adhesive material and insulating material for the inner conductive pattern in the multi-layer PCB manufacturing. After the insulation is laminated, the semi-cured epoxy resin is extruded, starts to flow and solidify, bonding the multi-layer circuit boards together and forming a reliable insulator. The GND return layer, the GND return layer is a large copper foil, 90% copper, with the property of GND, which is the signal return path, that is, the return current. When a high-speed digital signal is transmitted, the signal flows from the driver along the PCB transmission line to the load, and then returns from the load along the ground or power supply through the shortest path to the driver end. This return signal on the ground or power supply is called the signal return path, and all signals need a return path. The bottom and top surface wiring layer, which is the wiring on the surface layer of the PCB board. The bottom and top surface wiring layer is the circuit of the entire copper surface completed according to the design draft by etching, and is also the copper wire of the PCB board that we usually see. The PCB substrate green oil, the green oil is the liquid photoimageable solder mask, which is a medium acrylic oligomer. As a protective layer, it is coated on the circuits and substrates of the printed circuit board that do not need to be soldered, or used as a solder mask, aiming to protect the formed circuit pattern in the long term. The green oil is at least 10 mils away from the edge of the board to avoid curling due to friction and other situations at the board edge. The middle insulating layer of the stack, the middle part of which is the PP layer. Generally, the middle PP layer is 1-2 times thicker than the PP layers of other layers, and it is exactly in the middle of the board thickness, which can effectively detect the burning smell on both sides.

[0034] In a preferred embodiment of the present invention, the smoke detection device includes a smoke detection wire and a smoke detection cloth. When the size of the PCB board is less than or equal to 200mm×200mm, the smoke detection wire is laid in the insulating layer in the middle of the PCB board. When the size of the PCB board is greater than 200mm×200mm, the smoke detection cloth is laid in the insulating layer in the middle of the PCB board.

[0035] In a preferred embodiment of the present invention, as Figure 2 shown, the width of the smoke detection wire is 1-2mm, the thickness is 2 mils. The smoke detection wire bends according to the shape of the PCB board. The smoke detection wire is more than 5mm away from the edge of the PCB board. The spacing of the bends of the smoke detection wire is less than 10mm, and the bending angle is greater than 45 degrees. The smoke detection wire is more than 30 mils away from the drill holes on the PCB board. The first through hole is a metal hole, the diameter of the first through hole is 1-3mm, the pad is 0.5mm larger than the first through hole. The first through hole is conducted with the smoke detection wire. The error of the first through hole is + / -3 mils, the copper plating thickness is 1 mil, and the spacing between the first through hole and other signals is more than 30 mils. The smoke detection wire is arranged in the thickest part of the middle insulating layer in the stack of the PCB board.

[0036] In a preferred embodiment of the present invention, as Figure 3 shown, the smoke detection cloth is more than 5 mm away from the edge of the PCB board, more than 40 mils away from other holes, and the size of the smoke detection cloth is smaller than the size of the PCB board. For a PCB board with a size larger than 200 mm × 200 mm, a smoke sensing cloth is used, and this part will detect the situation of the entire board, especially for the main board. The components on the main board are relatively dense and prone to burning problems.

[0037] In a preferred embodiment of the present invention, as Figure 4 shown, the width of the deformation induction line is 1 - 2 mm, the thickness is 2 mils, the deformation induction line is more than 5 mm away from the edge of the PCB board, the deformation induction line bends according to the shape of the PCB board, the spacing of the bends of the deformation induction line is less than 15 mm, the angle of the bend is greater than 45 degrees, the deformation induction line is more than 30 mils away from the drilled holes on the PCB board, the second through - hole is a metal hole, the diameter of the second through - hole is 1 - 2 mm, the pad is 0.5 mm larger than the second through - hole, the second through - hole is electrically connected to the deformation induction line, the error of the second through - hole is + / - 3 mils, the copper plating thickness is 1 mil, and the second through - hole is more than 30 mils away from other signals.

[0038] Both the smoke detection line (cloth) and the deformation induction line are connected to the induction chip on the main board, and can feed back to the management chip in time when detecting odor, smoke and deformation. The management chip gives an alarm, and the management chip can control the power switch of the entire server system. When an alarm occurs, the power output is immediately turned off to achieve the purpose of cutting off the power.

[0039] Through the technical solution of the present invention, it is possible to perform image display for the customized server test without any display interface, which is convenient for on - site operation and improves the on - site operation efficiency.

[0040] Based on the above - mentioned purpose, in the second aspect of the embodiments of the present invention, a server is proposed. The server includes a PCB board, and the PCB board includes:

[0041] A smoke detection device, which is laid in the insulating layer in the middle of the PCB board;

[0042] A deformation induction line, which is laid in the insulating layer in the middle of the PCB board;

[0043] An induction chip, which is arranged on the main board. The induction chip is connected to the smoke detection device through the first through - hole on the PCB board, and the induction chip is connected to the deformation induction line through the second through - hole on the PCB board. The induction chip is configured to detect the smoke odor and bending deformation generated by the PCB board.

[0044] In a preferred embodiment of the present invention, the smoke detection device includes a smoke detection wire and a smoke detection cloth. When the size of the PCB board is less than or equal to 200mm×200mm, the smoke detection wire is laid in the insulating layer in the middle of the PCB board. When the size of the PCB board is greater than 200mm×200mm, the smoke detection cloth is laid in the insulating layer in the middle of the PCB board.

[0045] In a preferred embodiment of the present invention, the width of the smoke detection wire is 1-2mm, and the thickness is 2 mils. The smoke detection wire bends according to the shape of the PCB board. The smoke detection wire is more than 5mm away from the edge of the PCB board. The spacing of the bends of the smoke detection wire is less than 10mm, and the bending angle is greater than 45 degrees. The smoke detection wire is more than 30 mils away from the drilled holes on the PCB board. The first through-hole is a metal hole, the diameter of the first through-hole is 1-3mm, the pad is 0.5mm larger than the first through-hole, the first through-hole is electrically connected to the smoke detection wire, the error of the first through-hole is + / -3 mils, the copper plating thickness is 1 mil, and the spacing between the first through-hole and other signals is more than 30 mils.

[0046] In a preferred embodiment of the present invention, the smoke detection cloth is more than 5mm away from the edge of the PCB board, more than 40 mils away from other holes, and the size of the smoke detection cloth is smaller than the size of the PCB board.

[0047] In a preferred embodiment of the present invention, the width of the deformation induction wire is 1-2mm, and the thickness is 2 mils. The deformation induction wire is more than 5mm away from the edge of the PCB board. The deformation induction wire bends according to the shape of the PCB board. The spacing of the bends of the deformation induction wire is less than 15mm, and the bending angle is greater than 45 degrees. The deformation induction wire is more than 30 mils away from the drilled holes on the PCB board. The second through-hole is a metal hole, the diameter of the second through-hole is 1-2mm, the pad is 0.5mm larger than the second through-hole, the second through-hole is electrically connected to the deformation induction wire, the error of the second through-hole is + / -3 mils, the copper plating thickness is 1 mil, and the spacing between the second through-hole and other signals is more than 30 mils.

[0048] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can 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 appended claims and their equivalents.

[0049] The above embodiments, especially any "preferred" embodiments, are possible examples of implementation and are presented only for a clear understanding of the principles of the present invention. Many changes and modifications can be made to the above embodiments without departing from the spirit and principles of the technology described herein. All modifications are intended to be included within the scope of this disclosure and be protected by the appended claims.

Claims

1. A PCB board, characterized in that, Including: A smoke detection device, which is laid in the insulating layer in the middle of the PCB board; A deformation induction wire, which is laid in the insulating layer in the middle of the PCB board; An induction chip, which is arranged on the main board. The induction chip is connected to the smoke detection device through the first through hole on the PCB board, and the induction chip is connected to the deformation induction wire through the second through hole on the PCB board. The induction chip is configured to detect the smoke smell and bending deformation generated by the PCB board; The smoke detection device includes a smoke detection wire and a smoke detection cloth. When the size of the PCB board is less than or equal to 200mm×200mm, the smoke detection wire is laid in the insulating layer in the middle of the PCB board. When the size of the PCB board is greater than 200mm×200mm, the smoke detection cloth is laid in the insulating layer in the middle of the PCB board; Wherein, the PCB board is a multi-layer PCB board, and the middle is the middle layer position of the multi-layer PCB board stack.

2. The PCB board according to claim 1, wherein The width of the smoke detection wire is 1-2mm, and the thickness is 2mils. The smoke detection wire bends according to the shape of the PCB board. The smoke detection wire is more than 5mm away from the edge of the PCB board. The spacing of the bends of the smoke detection wire is less than 10mm, and the bending angle is greater than 45 degrees. The smoke detection wire is more than 30mils away from the drilled holes on the PCB board. The first through hole is a metal hole, the diameter of the first through hole is 1-3mm, the pad is 0.5mm larger than the first through hole, the first through hole is conducted with the smoke detection wire, the error of the first through hole is + / -3mils, the copper plating thickness is 1mils, and the spacing between the first through hole and other signals is more than 30mils.

3. The PCB board according to claim 1, characterized in that, The smoke detection cloth is more than 5mm away from the edge of the PCB board and more than 40mils away from other holes. The size of the smoke detection cloth is smaller than the size of the PCB board.

4. The PCB board according to claim 1, characterized in that, The width of the deformation induction wire is 1-2mm, and the thickness is 2mils. The deformation induction wire is more than 5mm away from the edge of the PCB board. The deformation induction wire bends according to the shape of the PCB board. The spacing of the bends of the deformation induction wire is less than 15mm, and the bending angle is greater than 45 degrees. The deformation induction wire is more than 30mils away from the drilled holes on the PCB board. The second through hole is a metal hole, the diameter of the second through hole is 1-2mm, the pad is 0.5mm larger than the second through hole, the second through hole is conducted with the deformation induction wire, the error of the second through hole is + / -3mils, the copper plating thickness is 1mils, and the spacing between the second through hole and other signals is more than 30mils.

5. A server, characterized in that, The server includes a PCB board, and the PCB board includes: A smoke detection device, which is laid in the insulating layer in the middle of the PCB board; A deformation induction wire, which is laid in the insulating layer in the middle of the PCB board; An induction chip, the induction chip is arranged on the main board, the induction chip is connected to the smoke detection device via the first through hole on the PCB board, and the induction chip is connected to the deformation induction wire via the second through hole on the PCB board. The induction chip is configured to detect the smoke smell and bending deformation generated by the PCB board; The smoke detection device includes a smoke detection wire and a smoke detection cloth. When the size of the PCB board is less than or equal to 200mm×200mm, the smoke detection wire is laid in the insulating layer in the middle of the PCB board. When the size of the PCB board is greater than 200mm×200mm, the smoke detection cloth is laid in the insulating layer in the middle of the PCB board; Wherein, the PCB board is a multi-layer PCB board, and the middle is the middle layer position of the multi-layer PCB board stack.

6. The server according to claim 5, wherein The width of the smoke detection wire is 1-2mm, the thickness is 2mils. The smoke detection wire bends according to the shape of the PCB board. The smoke detection wire is more than 5mm away from the edge of the PCB board. The spacing of the bends of the smoke detection wire is less than 10mm, and the bending angle is greater than 45 degrees. The smoke detection wire is more than 30mils away from the drilled holes on the PCB board. The first through hole is a metal hole, the diameter of the first through hole is 1-3mm, the pad is 0.5mm larger than the first through hole. The first through hole is conducted with the smoke detection wire. The error of the first through hole is + / -3mils, the copper plating thickness is 1mils, and the spacing between the first through hole and other signals is more than 30mils.

7. The server according to claim 5, wherein The smoke detection cloth is more than 5mm away from the edge of the PCB board and more than 40mils away from other holes. The size of the smoke detection cloth is smaller than the size of the PCB board.

8. The server according to claim 5, characterized in that, The width of the deformation induction wire is 1-2mm, the thickness is 2mils. The deformation induction wire is more than 5mm away from the edge of the PCB board. The deformation induction wire bends according to the shape of the PCB board. The spacing of the bends of the deformation induction wire is less than 15mm, and the bending angle is greater than 45 degrees. The deformation induction wire is more than 30mils away from the drilled holes on the PCB board. The second through hole is a metal hole, the diameter of the second through hole is 1-2mm, the pad is 0.5mm larger than the second through hole. The second through hole is conducted with the deformation induction wire. The error of the second through hole is + / -3mils, the copper plating thickness is 1mils, and the spacing between the second through hole and other signals is more than 30mils.

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