Server

Abstract

The invention provides a server. The server comprises a case, a mainboard, a fan backboard and a connecting structure. The mainboard and the fan backboard are arranged on the bottom wall of the case in a spaced mode. The mainboard is connected with the fan backboard through a connecting structure. The connecting structure comprises a flexible circuit board, a plurality of first connectors and a plurality of second connectors. And the plurality of first connectors and the plurality of second connectors are connected in a one-to-one correspondence manner through the flexible circuit board. The flexible circuit board comprises a plurality of first circuits. One end of each first line is connected with one first connector, and the other end of each first line is connected with one second connector. The plurality of first connectors are connected with the mainboard, and the plurality of second connectors are connected with the fan backboard. According to the connection structure, the occupied space in the server is smaller, so that the internal layout of the server is cleaner and tidier.

Description

Technical Field

[0001] The present application relates to the technical field of servers, and in particular to a server. Background Art

[0002] A server is a specific IT (information technology) device that provides computing power and runs software applications in a network environment. As an electronic device, the internal structure of the server is very complex. The main components of the server include CPU, memory, chipset, I / O device, storage, peripherals, voltage regulator, power supply and cooling system. In existing servers, in order to achieve signal connection between two components, cables are usually used to connect the two components. The cables are usually thick. In order to avoid other components in the server, it is usually necessary to route the cables from the side of the server casing, which increases the cable length and leads to large losses. In addition, multiple cables are intertwined with each other, which can easily block the wind generated by the cooling fan in the server, which is not conducive to heat dissipation and energy saving and emission reduction. In addition, the cable layout in the server casing is messy, which affects the user experience and is not conducive to the effective use of the casing space in the server. Summary of the invention

[0003] The embodiment of the present application provides a server, comprising a chassis, a mainboard, a fan backplane and a connection structure, wherein the mainboard and the fan backplane are spaced apart and arranged on the bottom wall of the chassis, and the mainboard and the fan backplane are connected through the connection structure; The connection structure includes a flexible circuit board, multiple first connectors, and multiple second connectors. The multiple first connectors and the multiple second connectors are connected one-to-one through the flexible circuit board. The flexible circuit board includes multiple first circuits, one end of each first circuit is connected to a first connector, and the other end is connected to a second connector. The multiple first connectors are connected to the main board, and the multiple second connectors are connected to the fan backplane.

[0004] In existing servers, the main board and the fan backplane are interconnected through multiple cables. The connection structure in the server of the present application adopts a flexible circuit board as the main body, and multiple circuits are concentrated inside the flexible circuit board. Compared with the cables in the existing servers, the connection structure can be set with a higher density of circuits inside and the structure is flat. It takes up less space when set in the server, making the layout inside the server neater. In addition, the connection structure is small in size and will not block other components inside the server, such as the wind from the cooling fan, which is conducive to heat dissipation and more energy-saving and emission reduction. In addition, the connection structure has a simple process for connecting the flexible circuit board and the hard board, and the cost is low.

[0005] In an embodiment of the present application, the flexible circuit board includes a first connection portion, a first routing portion, and a second connection portion which are connected in sequence, the plurality of first connectors are arranged at intervals on the first connection portion, the plurality of second connectors are arranged at intervals on the second connection portion, and the plurality of first lines extend from the first connection portion and the first routing portion to the second connection portion in sequence; the first connection portion is arranged close to the mainboard, the second connection portion is located on a side of the fan backplate away from the mainboard, and a portion of the first routing portion is located between the fan backplate and the bottom wall.

[0006] In an embodiment of the present application, the server also includes a hard disk backplane, which is spaced apart from the fan backplane and is located on a side of the fan backplane away from the main board, the connection structure also includes a plurality of third connectors and a plurality of fourth connectors, the flexible circuit board also includes a plurality of second circuits, one end of each of the second circuits is connected to a third connector and the other end is connected to a fourth connector, the plurality of third connectors are connected to the main board, and the plurality of fourth connectors are connected to the hard disk backplane.

[0007] In an embodiment of the present application, the flexible circuit board also includes a second routing portion and a third connecting portion, the third connecting portion is spaced apart from the second connecting portion, the second routing portion is connected between the third connecting portion and the second connecting portion, a plurality of the third connectors are spaced apart from the first connecting portion, a plurality of the fourth connectors are spaced apart from the third connecting portion, and the plurality of second lines extend from the first connecting portion, the first routing portion, the second connecting portion, the second routing portion in sequence to the third connecting portion.

[0008] In an embodiment of the present application, the first connecting portion includes a plurality of first connecting ends, each first connecting end is provided with a plurality of first connecting points, the plurality of first connecting points of each first connecting end are connected to the corresponding first circuits, the first connector includes a hard board, the hard board includes a plurality of second connecting points, and the plurality of second connecting points are connected to the plurality of first connecting points.

[0009] In the embodiment of the present application, the hard board includes a first connection surface and a second connection surface arranged back to back, the plurality of second connection points are arranged in two rows, the two rows of second connection points are arranged at intervals on the first connection surface, and the plurality of first connection points of the first connection end corresponding to the hard board are arranged in two rows, and one row of first connection points corresponds to one row of second connection points.

[0010] In this case, the connection end of the flexible circuit board is overlapped on a single side (first connection surface) of the hard board. The connection between the flexible circuit board and the hard board is relatively simple, and the connection operation between the connection end and the hard board is simple and has fewer process steps.

[0011] In the embodiment of the present application, the hard board includes a first connection surface and a second connection surface disposed opposite to each other, and the plurality of second connection points include some second connection points located on the first connection surface and some second connection points located on the second connection surface; The first connecting end comprises a first connecting layer and a second connecting layer spaced apart in a thickness direction thereof, and at least a portion of the hard board is located between the first connecting layer and the second connecting layer; The multiple first connection points include a first group of connection points and a second group of connection points. The first group of connection points are arranged on the surface of the first connection layer facing the second connection layer and connected to the second connection points on the first connection surface; the second group of connection points are arranged on the surface of the second connection layer facing the first connection layer and connected to the second connection points on the second connection surface.

[0012] The connection end of the flexible circuit board is split into two parts along the thickness, and overlapped on the double sides (first connection surface and second connection surface) of the hard board respectively, which can effectively realize the transmission of more signals between the flexible circuit board and the hard board. Usually, this double-sided connection method is suitable for the case of transmitting more signals. In this way, denser lines can be set in the limited space of the connection structure, which is more conducive to the miniaturization and integration of the connection structure. In the embodiment of the present application, the first group of connection points are arranged in a row along one direction, and correspondingly, the second connection points on the first connection surface are arranged in a row along the same direction; The second group of connection points are arranged in a row along a direction, and correspondingly, the second connection points on the second connection surface are arranged in a row along the same direction.

[0013] In an embodiment of the present application, the first circuit includes multiple layers arranged along the thickness direction, some layers of the first circuit are located in the first connection layer and connected to the first group of connection points, and some layers of the first circuit are located in the second connection layer and connected to the second group of connection points.

[0014] The number of circuit layers contained in the first connection layer and the second connection layer may be equal or unequal. Correspondingly, the thickness of the first connection layer and the second connection layer may be equal or unequal.

[0015] In an embodiment of the present application, the hard board includes a first connecting surface and a second connecting surface arranged back to back, a first contact located on the first connecting surface, and a second contact located on the second connecting surface, and a plurality of the second connecting points are arranged in two rows, one row of the second connecting points is connected to the first contacts, and the other row of the second connecting points is connected to the second contacts.

[0016] In the embodiment of the present application, the hard board includes a first connection surface and a second connection surface disposed opposite to each other, and the second connection point includes a second connection point located on the first connection surface and a second connection point located on the second connection surface; The first connection end includes an upper surface and a lower surface that are arranged opposite to each other, and the first connection end includes a first sub-portion and a second sub-portion, and the first sub-portion and the second sub-portion are arranged at intervals along a width direction of the first connection end. The multiple first connection points include a first group of connection points and a second group of connection points, the first group of connection points are arranged in the first sub-section and located on the upper surface, and connected to the second connection points on the second connection surface; the second group of connection points are arranged in the second sub-section and located on the lower surface, and connected to the second connection points on the first connection surface.

[0017] The connection end of the flexible circuit board is split into a first sub-section and a second sub-section along the width direction. The upper surface of the first sub-section overlaps the second connection surface of the hard board, and the lower surface of the second sub-section overlaps the first connection surface of the hard board, thereby realizing double-sided connection between the connection end and the hard board.

[0018] In the implementation manner of the present application, along the thickness direction of the hard board, the projection of the second connection point on the first connection surface and the projection of the second connection point on the second connection surface do not overlap with each other.

[0019] In the embodiment of the present application, the first sub-section includes a first side, a second side and a third side, the first side is opposite to the third side, and the second side is connected between the first side and the third side; A portion of the first group of connection points is arranged in a row along the first side, and another portion is arranged in a row along the second side; correspondingly, in the rigid board, the second connection points on the first connection surface are arranged in two vertical rows, and the first group of connection points in a row arranged along the first side are connected one by one with the first group of connection points in a row arranged along the second side; or A portion of the first group of connection points is arranged in a row along the first edge, a portion is arranged in a row along the second edge, and the other portion is arranged in a row along the third edge; correspondingly, in the hard board, the second connection points on the first connection surface are arranged in three rows, and are connected one by one to a row of the first group of connection points arranged along the first edge, a row of the first group of connection points arranged along the second edge, and a row of the first group of connection points arranged along the third edge. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of a server according to an embodiment of the present application.

[0021] Figure 2 It is a schematic diagram of the connection structure of Example 1 of the present application.

[0022] Figure 3 It is a schematic diagram of the connection structure of the second embodiment of the present application.

[0023] Figure 4 It is a schematic diagram of a server according to another embodiment of the present application.

[0024] Figure 5 It is a schematic diagram of the connection between the connecting end and the hard board of the first embodiment of the present application.

[0025] Figure 6 It is a schematic diagram of the connection between the connecting end and the hard board of the second embodiment of the present application.

[0026] Figure 7 It is a schematic diagram of the connection between the connection end and the hard board of Example 3 of the present application.

[0027] Figure 8 It is a schematic diagram of the connection end of an embodiment of the present application.

[0028] Main component symbols Servers 100, 200, power supply 110, motherboard 120, hard disk backplane 130, fan backplane 140, Cooling fan 150, chassis 40, first component 10, second component 20, connecting structure 30, Flexible circuit board 31, hard board 33, connector 32, first connector 32a, second connector 32b, The third connector 32c, the fourth connector 32d, the first connecting portion 31a, the first routing portion 31c, The second connection portion 31b, the second wiring portion 31e, the third connection portion 31d, the first end portion 33a, the second end portion 33b, The first connection surface 332, the second connection surface 334, the connection end 310, the first connection end 311, the second connection end 312, The third connection terminal 313, the first connection point 315, the second connection point 331, the contact point 333, the first contact point 333a, second contact 333b, first connection layer 310a, second connection layer 310b, first group of connection points 315a, The second group of connection points 315b, the first sub-section 310c, and the second sub-section 310d. DETAILED DESCRIPTION

[0029] The embodiment of the present application provides a server, wherein the main body of the connection structure used in the server adopts a flexible circuit board and the connection end of the flexible circuit board is combined with a hard board, and the two components are connected through the connection structure. The connection structure is thin, occupies a small volume, and is flexible and bendable, which can make the internal layout of the server simple and neat, and will not block the wind of the cooling fan, which is conducive to heat dissipation.

[0030] like Figure 1 As shown, the server 100 of the embodiment of the present application includes a first component 10, a second component 20, and a connection structure 30 connected between the first component 10 and the second component 20.

[0031] In some embodiments, the first component 10 may be a power supply, the second component 20 may be a mainboard, or both the first component 10 and the second component 20 may be circuit boards, but the present invention is not limited thereto. In short, the first component 10 and the second component 20 may be any two components in the server that need to be connected.

[0032] It should be noted that the server 100 generally includes a chassis 40. The first component 10, the second component 20 and the connection structure 30 are all arranged in the chassis 40. In addition, the server 100 can also be provided with multiple connection structures 30 as required to connect multiple groups of different components.

[0033] Figure 2 A connection structure 30 is shown. The connection structure 30 includes a flexible circuit board 31 and a connector 32 connected to the flexible circuit board 31. The flexible circuit board 31 includes two connection ends 310, each of which is connected to a connector 32. One of the two connection ends 310 is a first connection end 311, and the other is a second connection end 312. A circuit (not shown) is provided inside the flexible circuit board 31, one end of the circuit is connected to a connector 33, and the other end is connected to another connector 32. That is, the first connection end 311 and the second connection end 312 are respectively connected to a connector 33. In the embodiment of the present application, the connector 32 includes a hard board 33.

[0034] Figure 4 The server 200 shown includes three connection structures 30. The chassis 40 of the server 200 is internally provided with components such as a power supply 110, a mainboard 120, a hard disk backplane 130, and a fan backplane 140. The hard disk backplane 130 is a circuit board on which a hard disk (not shown) is inserted, and the fan backplane 140 is a circuit board on which a plurality of cooling fans 150 are arranged. The mainboard 120 and the fan backplane 140 are spaced apart on the bottom wall of the chassis 40. The hard disk backplane 130 and the fan backplane 140 are spaced apart, and the hard disk backplane 130 is located on the side of the fan backplane 140 away from the mainboard 120. In order to simplify Figure 4 , Figure 4 The connectors (hard boards) of the connection structure are not shown.

[0035] One of the connection structures 30 has two connectors (hard boards), one of which is connected to the power supply 110, and the other is connected to the hard board backplane 130. That is, the connection structure 30 connects the power supply 110 and the hard disk backplane 130. The connection structure 30 passes through the left side of the cooling fan 150 to connect between the power supply 110 and the hard disk backplane 130. The connection structure 30 is a flat strip as a whole, and can pass through the gap between the cooling fan 150 and the chassis 40, occupying less space.

[0036] Another connection structure 30 has two connectors (hard boards), one of which is connected to the main board 120, and the other is connected to the hard board backplane 130. That is, the connection structure 30 connects the main board 120 and the hard disk backplane 130. The connection structure 30 passes through the right side of the cooling fan 150 to connect between the main board 120 and the hard disk backplane 130. The connection structure 30 is a flat strip as a whole, and can pass through the gap between the cooling fan 150 and the chassis 40, occupying less space.

[0037] The connecting structure 30 in the middle is connected to the main board 120 and the fan back plate 140 . The main board 120 and the fan back plate 140 are connected via the connecting structure 30 .

[0038] Figure 3 The connection structure 30 shown is Figure 4 The connecting structure 30 is located in the middle. Figure 3 and Figure 4 , the connection structure 30 includes a flexible circuit board 31, a plurality of first connectors 32a, and a plurality of second connectors 32b. The plurality of first connectors 32a and the plurality of second connectors 32b are connected one by one through the flexible circuit board 31. The flexible circuit board 31 includes a first connection portion 31a, a first wiring portion 31c, and a second connection portion 31b connected in sequence. In the embodiment of the present application, the first connection portion 31a is arranged close to the main board 120, and the second connection portion 31b is located on the side of the fan back plate 140 away from the main board 120. The plurality of first connectors 32a are arranged at intervals on the first connection portion 31a, and the plurality of second connectors 32b are arranged at intervals on the second connection portion 31b. The flexible circuit board 31 also includes a plurality of first circuits (not shown) embedded therein. The plurality of first circuits extend sequentially from the first connection portion 31a and the first wiring portion 31c to the second connection portion 31b. One end of each first circuit is connected to a first connector 32a, and the other end is connected to a second connector 32b. The plurality of first connectors 32a are connected to the mainboard 120, and the plurality of second connectors 32b are connected to the fan backplane 140. In the embodiment of the present application, the plurality refers to two or more.

[0039] like Figure 4As shown, in the embodiment of the present application, part of the first wiring portion 31c is located between the fan back plate 140 and the bottom wall of the chassis 40. In this way, part of the connection structure 30 can be "hidden" in appearance, which can further reduce the obstruction to the air outlet of the heat dissipation fan 150.

[0040] In other embodiments, a portion of the first wiring portion 31c may also be disposed on the surface of the fan back plate 140 away from the bottom wall of the chassis 40 and located between the two cooling fans 150. In this way, the connection structure 30 will not block the wind of the cooling fans 150.

[0041] Combination Figure 3 , the connection structure 30 located in the middle is also connected between the main board 120 and the hard disk backplane 130, and the main board 120 and the hard disk backplane 130 are also connected through the connection structure 30. The connection structure 30 also includes a plurality of third connectors 32c and a plurality of fourth connectors 32d. The flexible circuit board 31 also includes a second wiring portion 31e and a third connection portion 31d. The third connection portion 31d is arranged at intervals with the second connection portion 31b, and the second wiring portion 31e is connected between the third connection portion 31d and the second connection portion 31b. A plurality of third connectors 32c are arranged at intervals on the first connection portion 31a, and a plurality of fourth connectors 32d are arranged at intervals on the third connection portion 31d. The flexible circuit board 31 also includes a plurality of second circuits (not shown), one end of each second circuit is connected to a third connector 32c, and the other end is connected to a fourth connector 32d. The plurality of third connectors 32c are connected to the main board 120, and the plurality of fourth connectors 32d are connected to the hard disk backplane 130. The plurality of second lines extend from the first connection portion 31a, the first wiring portion 31c, the second connection portion 31b, and the second wiring portion 31e to the third connection portion 31d in sequence. In this way, different lines are integrated in the same flexible circuit board 31 to connect between multiple groups of different components, and there is no need to set up multiple groups of cables to respectively connect multiple groups of components, making the layout inside the chassis 40 of the server 100 neater.

[0042] In this way, the connection structure 30 can be connected between the mainboard 120 and at least two other components (such as the hard disk backplane 130 and the fan backplane 140) to achieve interconnection between the mainboard 120 and other multiple components. The connection structure 30 can realize signal transmission between multiple components, and the overall structure is flat. The connection structure 30 can pass between the fan backplane 140 and the bottom wall of the chassis 40, that is, part of the connection structure 30 can be "hidden" in appearance, and the overall space occupied is small, making the internal layout of the server 100 neater. In addition, the connection structure 30 is small in size and will not block the wind of the cooling fan 150, which is conducive to heat dissipation and more energy-saving and emission reduction.

[0043] The first connector 32 a , the second connector 32 b , the third connector 32 c , and the fourth connector 32 d each include a hard board 33 .

[0044] like Figure 5 As shown, each hard board 33 includes a first end 33a and a second end 33b opposite to each other. The first end 33a is connected to the corresponding connection end 310 of the flexible circuit board 31. When the connection structure 30 is installed in the server 100, the second end 33b of the hard board 33 is inserted into the corresponding slot of the corresponding mainboard 120, hard disk backplane 130 or fan backplane 140.

[0045] Please continue to read Figure 5 Each connection end 310 is provided with a plurality of first connection points 315. In the hard board 33, the first end 33a is provided with a plurality of second connection points 331, and the plurality of second connection points 331 are connected to the plurality of first connection points 315 of the corresponding connection end 310. The second end 33b is provided with a contact 333. The first connection points 315, the second connection points 331, and the contact 333 are all capable of conducting electricity.

[0046] A circuit (not shown) is also provided in the hard board 33, and the second connection point 331 of the first end 33a and the contact 333 of the second end 33b are connected correspondingly through the circuit in the hard board 33. The contact 333 is used to connect with the corresponding first component 10 or second component 20 (such as the main board 120, etc.).

[0047] The hard board 33 includes a first connection surface 332 and a second connection surface 334 disposed opposite to each other. The contact 333 includes a first contact 333a located on the first connection surface 332 and a second contact 333b located on the second connection surface 334. The plurality of second connection points 331 are arranged in two rows, and although not shown in the figure, one row of the second connection points 331 is connected to the first contact 333a, and the other row of the second connection points 331 is connected to the second contact 333b.

[0048] like Figure 5 As shown, the first connection points 315 are arranged in two columns, and the corresponding second connection points 331 are arranged in two columns, and each column of first connection points 315 is connected to a corresponding column of second connection points 331 .

[0049] It can be understood that the first connection points 315 provided at each connection end 310 can be arranged in one row, two rows or more, and the specific number of rows may need to be adjusted and designed; and the number of rows of the second connection points 331 at the first end 33a of the hard board 33 is consistent with the number of rows of the first connection points 315 on the corresponding connection end 310. In addition, the contact points 333 at the second end 33b of the hard board 33 are not limited to being arranged in two rows on the first connection surface 332 and the second connection surface 334, and can also be arranged in one row on one of the first connection surface 332 and the second connection surface 334.

[0050] In the embodiment of the present application, the hard board 33 is a gold finger hard board 33, and the contact 333 is a gold finger. The hard board 33 is not limited to the gold finger hard board, and can also be other hard boards in the art.

[0051] In the embodiment of the present application, the first connection portion 31a includes a plurality of first connection ends 311, and each first connection end 311 is provided with a plurality of first connection points 315. The plurality of first connection points 315 of some first connection ends 311 are connected to the corresponding first circuits, and the plurality of first connection points 315 of other first connection ends 311 are connected to the corresponding second circuits. The hard board 33 of the first connector 32 includes a plurality of second connection points 331, and the plurality of second connection points 331 are connected to the plurality of first connection points 315 of some first connection ends 311, thereby realizing the connection between the flexible circuit board 31 and the corresponding first connector 32a.

[0052] Similarly, the hard board 33 of the third connector 32c includes a plurality of second connection points 331, and the plurality of second connection points 331 are connected to a plurality of first connection points 315 of other first connection ends 311, thereby realizing the connection between the flexible circuit board 31 and the corresponding third connector 32c.

[0053] The corresponding second connection portion 31b includes a plurality of second connection ends 312, each second connection end 312 is provided with a plurality of first connection points 315, and the plurality of first connection points 315 of each second connection end 312 are connected to the corresponding first circuit. The second connector 32b includes a hard board 33, and the hard board 33 includes a plurality of second connection points 331, and the plurality of second connection points 331 are connected to the plurality of first connection points 315 of the second connection end 312, thereby realizing the connection between the flexible circuit board 31 and the corresponding second connector 32b.

[0054] The corresponding third connection portion 31d includes a plurality of third connection ends 313, each of which is provided with a plurality of first connection points 315, and the plurality of first connection points 315 of each third connection end 313 are connected to the corresponding second circuit. The hard board 33 of the fourth connector 32d includes a plurality of second connection points 331, and the plurality of second connection points 331 are connected to the plurality of first connection points 315 of the third connection end 313, thereby realizing the connection between the flexible circuit board 31 and the corresponding fourth connector 32d.

[0055] The connection terminal 310 described below may be at least one of the first connection terminal 311 , the second connection terminal 312 , and the third connection terminal 313 .

[0056] In some embodiments, the first connection point 315 on the connection end 310 of the flexible circuit board 31 and the second connection point 331 on the hard board 33 are connected by welding, such as hot pressing welding or laser welding, and then glue is applied to the connection between the hard board 33 and the connection end 310 to fix the hard board 33 and the flexible circuit board 31 together to achieve connection.

[0057] In some embodiments, connectors (not shown) are respectively provided on the mainboard 120, the hard disk backplane 130 or the fan backplane 140 to connect the corresponding connectors in the connection structure 30. For example, a female connector is provided on the mainboard 120, and the connector of the connection structure 30 can be regarded as a male connector. The hard board 33 is inserted into the corresponding female connector, thereby realizing the connection between the connection structure 30 and components such as the mainboard 120. In some embodiments, the second end of the hard board 33 is also provided with a connector housing (not shown) to be inserted into the corresponding connector. In this way, the installation and disassembly of the connection structure 30 is also very convenient, and the hard board 33 can be plugged in and out on the mainboard 120, the hard disk backplane 130 or the fan backplane 140.

[0058] The connection structure 30 of the embodiment of the present application can process the flexible circuit board 31 and the hard board 33 of the connector 32 separately, and then assemble the flexible circuit board 31 and the hard board 33 into one by welding or the like. Compared with the current soft-hard combination board, the connection structure 30 of the embodiment of the present application has a simple processing technology and low cost.

[0059] The connection structure 30 of the embodiment of the present application adopts a flexible circuit board 31 as the main body, which is smaller in size and lighter in weight than a rigid circuit board, and is suitable for compact design; the flexible circuit board 31 is bendable, and is suitable for complex layout in a limited space; the flexible circuit board 31 has better vibration and impact resistance; the flexible circuit board 31 can integrate multi-layer circuits, saving space and improving electrical performance.

[0060] Several structures of the connection end 310 of the flexible circuit board 31 and methods of connecting the connection end 310 with different structures to the hard board 33 will be introduced below.

[0061] Figure 5 The connection end 310 of the flexible circuit board 31 is shown to be connected to a single side of the hard board 33. Figure 5 As shown, the second connection points 331 provided on the first end 33a of the hard board 33 are arranged in two rows, and the two rows of second connection points 331 are arranged at intervals on the first connection surface 332. The connection end 310 corresponding to the hard board 33 is overlapped on the first connection surface 332 of the hard board 33. The multiple first connection points 315 of the connection end 310 are arranged in two rows and are located on the same surface of the connection end 310. One row of first connection points 315 is correspondingly connected to one row of second connection points 331, thereby realizing the connection between the connection end 310 and the hard board 33.

[0062] In this embodiment, the single-sided connection between the connection end 310 and the hard board 33 makes the connection between the flexible circuit board 31 and the hard board 33 relatively simple, and the connection operation between the connection end 310 and the hard board 33 is simple and has fewer process steps.

[0063] Figure 6 The connection end 310 of the flexible circuit board 31 is shown to be connected to both sides of the hard board 33. Figure 6 As shown, the plurality of second connection points 331 on the hard board 33 include some second connection points 331 located on the first connection surface 332 and some second connection points 331 located on the second connection surface 334 .

[0064] The connection end 310 includes a first connection layer 310a and a second connection layer 310b spaced apart in the thickness direction thereof, and the first end of the hard board 33 is located between the first connection layer 310a and the second connection layer 310b. The first connection layer 310a overlaps the first connection surface 332 of the hard board 33, and the second connection layer 310b overlaps the second connection surface 334 of the hard board 33. That is, the first connection layer 310a and the second connection layer 310b clamp the first end of the hard board 33 in the middle, so as to achieve double-sided welding with the hard board 33.

[0065] In the connection end 310, the plurality of first connection points 315 include a first group of connection points 315a and a second group of connection points 315b. The first group of connection points 315a is arranged on the surface of the first connection layer 310a facing the second connection layer 310b, and is connected to the second connection points 331 on the first connection surface 332. The second group of connection points 315b is arranged on the surface of the second connection layer 310b facing the first connection layer 310a, and is connected to the second connection points 331 on the second connection surface 334.

[0066] In this embodiment, the first group of connection points 315a are arranged in a row along one direction, and correspondingly, the second connection points 331 on the first connection surface 332 are arranged in a row along the same direction. The second group of connection points 315b are arranged in a row along one direction, and correspondingly, the second connection points 331 on the second connection surface 334 are arranged in a row along the same direction. In this embodiment, the circuit in the flexible circuit board 31 includes multiple layers arranged along the thickness direction at least at the position of the connection end 310, and some layers of the circuit are located in the first connection layer 310a and connected to the first group of connection points 315a, and some layers of the circuit are located in the second connection layer 310b and connected to the second group of connection points 315b. The number of layers of the circuit in the first connection layer 310a may be equal to or unequal to the number of layers of the circuit in the second connection layer 310b. The thickness of the first connection layer 310a may be equal to or unequal to the thickness of the second connection layer 310b. In this embodiment, the method of connecting the connection end 310 to both sides of the hard board 33 can effectively realize the transmission of more signals between the flexible circuit board 3 and the hard board 33. Generally, this double-sided connection method is suitable for the case where more signals are transmitted. In this way, denser circuits can be arranged in the limited space of the connection structure 30, which is more conducive to the miniaturization and integration of the connection structure 30.

[0067] Figure 7 The connection end 310 of the flexible circuit board 31 is shown to be connected to both sides of the hard board 33. Figure 7 As shown, the plurality of second connection points 331 on the hard board 33 include some second connection points 331 located on the first connection surface 332 and some second connection points 331 located on the second connection surface 334 .

[0068] The connecting end 310 includes an upper surface and a lower surface that are arranged opposite to each other. The connecting end 310 includes a first sub-section 310c and a second sub-section 310d that are spaced apart along the width direction of the connecting end 310. In the embodiment of the present application, the width direction of the connecting end 310 is perpendicular to the direction in which the first end of the hard board 33 points to the second end. The multiple first connection points 315 of the connecting end 310 include a first group of connection points 315a and a second group of connection points 315b. The first group of connection points 315a is arranged in the first sub-section 310c and is located on the upper surface, and the second group of connection points 315b is arranged in the second sub-section 310d and is located on the lower surface. The upper surface of the first sub-section 310c overlaps the second connection surface 334, and the first group of connection points 315a is connected to the second connection points 331 on the second connection surface 334. The lower surface of the second sub-section 310d overlaps the first connection surface 332, and the second group of connection points 315b is connected to the second connection points 331 on the first connection surface 332.

[0069] In this embodiment, the circuit in the flexible circuit board 31 is divided into two parts at least at the position of the connection end 310, one part of the circuit is located in the first sub-part 310c and connected to the first group of connection points 315a, and the other part of the circuit is located in the second sub-part 310d and connected to the second group of connection points 315b.

[0070] Along the thickness direction of the hard board 33 , the projections of the first sub-portion 310 c and the second sub-portion 310 d on the hard board 33 do not overlap, and the projection of the second connection point 331 on the first connection surface 332 and the projection of the second connection point 331 on the second connection surface 334 do not overlap each other.

[0071] In this embodiment, the double-sided connection between the connection end 310 and the hard board 33 can effectively realize the transmission of more signals between the flexible circuit board 3 and the hard board 33. Usually, this double-sided connection method is suitable for situations where more signals are transmitted. In this way, denser lines can be arranged in the limited space of the connection structure 30, which is more conducive to the miniaturization and integration of the connection structure 30. Compared with the single-sided connection between the connection end 310 and the hard board 33, this double-sided connection method also has a simple process operation.

[0072] like Figure 7 As shown, the first sub-portion 310c and the second sub-portion 310d each include a first side, a second side and a third side, the first side is opposite to the third side, and the second side is connected between the first side and the third side.

[0073] In some embodiments, such as Figure 7 As shown, the first group of connection points 315a in the first sub-section 310c are arranged in two rows. A portion of the first group of connection points 315a is arranged in a row along the first side or the third side, and another portion is arranged in a row along the second side. In the corresponding hard board 33, the second connection points 331 on the first connection surface 332 are arranged in two vertical rows, and one-to-one correspondence is connected to a row of the first group of connection points 315a arranged along the first side or the third side and a row of the first group of connection points 315a arranged along the second side. Compared with the connection end 310, since the area space of the first sub-section 310c is part of the connection end 310, it is necessary to set the first group of connection points 315a in the first sub-section 310c to two or more rows to ensure that there is sufficient spacing between adjacent first connection points 315 in the same row; at the same time, this also facilitates the welding process of the first sub-section 310c and the hard board 33.

[0074] In other embodiments, Figure 8 As shown, the first group of connection points 315a in the first sub-section 310c are arranged in three rows. A portion of the first group of connection points 315a is arranged in a row along the first side, a portion is arranged in a row along the second side, and the rest is arranged in a row along the third side. In the corresponding hard board 33, the second connection points 331 on the first connection surface 332 are arranged in three rows, and are connected one by one to a row of the first group of connection points 315a arranged along the first side, a row of the first group of connection points 315a arranged along the second side, and a row of the first group of connection points 315a arranged along the third side.

[0075] Figure 7 and Figure 8The two arrangements of the first group of connection points 315a are presented, but the arrangement is not limited thereto, and the arrangement can be adjusted and designed as needed. In short, the arrangement of the first group of connection points 315a needs to be consistent with the arrangement of the second connection points 331 on the first connection surface 332 of the hard board 33, so as to achieve a one-to-one connection between the first group of connection points 315a and the second connection points 331, thereby enabling the signal to be transmitted between the first sub-portion 310c of the connection end 310 and the hard board 33.

[0076] Correspondingly, the arrangement and setting of the second group of connection points 315b in the second sub-section 310d can be performed with reference to the arrangement and setting of the first group of connection points 315a in the first sub-section 310c.

[0077] like Figure 7 As shown, in some embodiments, the second group of connection points 315b in the second sub-section 310d is arranged in two rows. A portion of the second group of connection points 315b is arranged in a row along the first side, and another portion is arranged in a row along the second side. In the corresponding hard board 33, the second connection points 331 on the second connection surface 334 are arranged in two vertical rows, and one-to-one correspondence is connected to a row of second group of connection points 315b arranged along the first side and a row of second group of connection points 315b arranged along the second side. Compared with the connection end 310, since the area space of the second sub-section 310d is part of the connection end 310, it is necessary to set the second group of connection points 315b in the second sub-section 310d to two or more rows to ensure that there is sufficient spacing between adjacent first connection points 315 in the same row; at the same time, this also facilitates the welding process of the second sub-section 310d and the hard board 33.

[0078] In other embodiments, Figure 8 As shown, the second group of connection points 315b in the second sub-section 310d are arranged in three rows. A portion of the second group of connection points 315b is arranged in a row along the first side, a portion is arranged in a row along the second side, and the rest is arranged in a row along the third side. In the corresponding hard board 33, the second connection points 331 on the first connection surface 332 are arranged in three rows, and are connected one by one to a row of the second group of connection points 315b arranged along the first side, a row of the second group of connection points 315b arranged along the second side, and a row of the second group of connection points 315b arranged along the third side.

[0079] In short, the arrangement of the second group of connection points 315b needs to be consistent with the arrangement of the second connection points 331 on the second connection surface 334 of the hard board 33, so as to achieve a one-to-one connection between the second group of connection points 315b and the second connection points 331, thereby enabling the signal to be transmitted between the second sub-portion 310d of the connection end 310 and the hard board 33.

[0080] It is understandable that in the same column of first connection points 315, the distance between the center points of two adjacent first connection points 315, the width of the blank area between two adjacent first connection points 315, the number of columns of first connection points 315, etc. can all be designed according to the scene requirements. In some embodiments, the distance between the center points of two adjacent first connection points 315 is 0.5mm, and the width of the blank area between two adjacent first connection points 315 is 0.2mm. By reasonably setting the distance between two adjacent first connection points 315, the solder bridging of two adjacent first connection points 315 can be effectively prevented during the welding process, making the welding more precise, thereby ensuring the accuracy of signal transmission.

[0081] The connection structure 30 in the server 100 of the embodiment of the present application adopts a flexible circuit board 31 as the main body, and the connection end 310 of the flexible circuit board 31 is connected to the hard board 33. Compared with cables, a higher density of lines can be set inside the connection structure 30 and the overall structure is flatter. It occupies less space when set in the server 100, and can even be placed on the back of the mainboard of the server 100 so that at least part of it is "hidden", so that at least part of the appearance of the connection structure 30 is invisible, making the layout inside the server 100 neater. In addition, the connection structure 30 is small in size and will not block other components inside the server 100, such as not blocking the wind of the cooling fan 150, which is conducive to heat dissipation and more energy-saving and emission reduction. In addition, the connection structure 30 has a simple processing technology and low cost.

[0082] It should be noted that the above are specific implementations of the present application, but the protection scope of the embodiments of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or replacements within the technical scope disclosed in the embodiments of the present application, which should be included in the protection scope of the embodiments of the present application; in the absence of conflicts, the implementation methods of the present application and the features in the implementation methods can be combined with each other. Therefore, the protection scope of the embodiments of the present application shall be based on the protection scope of the claims.

Claims

1. A server, characterized in that: It includes a chassis, a mainboard, a fan backplane and a connecting structure, wherein the mainboard and the fan backplane are spaced apart and arranged on the bottom wall of the chassis, and the mainboard and the fan backplane are connected through the connecting structure; The connection structure includes a flexible circuit board, multiple first connectors, and multiple second connectors. The multiple first connectors and the multiple second connectors are connected one-to-one through the flexible circuit board. The flexible circuit board includes multiple first circuits, one end of each of the first circuits is connected to a first connector, and the other end is connected to a second connector. Multiple first connectors are connected to the mainboard, and multiple second connectors are connected to the fan backplane.

2. The server according to claim 1, characterized in that: The flexible circuit board includes a first connection part, a first routing part, and a second connection part which are connected in sequence, the multiple first connectors are arranged at intervals on the first connection part, the multiple second connectors are arranged at intervals on the second connection part, and the multiple first lines extend from the first connection part and the first routing part to the second connection part in sequence; the first connection part is arranged close to the mainboard, the second connection part is located on a side of the fan backplate away from the mainboard, and a part of the first routing part is located between the fan backplate and the bottom wall.

3. The server according to claim 1 or 2, characterized in that: The server also includes a hard disk backplane, which is spaced apart from the fan backplane and located on a side of the fan backplane away from the mainboard. The connection structure also includes a plurality of third connectors and a plurality of fourth connectors. The flexible circuit board also includes a plurality of second circuits, one end of each of the second circuits is connected to a third connector and the other end is connected to a fourth connector. The plurality of third connectors are connected to the mainboard, and the plurality of fourth connectors are connected to the hard disk backplane.

4. The server according to claim 3, characterized in that: The flexible circuit board also includes a second routing portion and a third connecting portion, the third connecting portion is arranged at intervals from the second connecting portion, the second routing portion is connected between the third connecting portion and the second connecting portion, a plurality of the third connectors are arranged at intervals on the first connecting portion, a plurality of the fourth connectors are arranged at intervals on the third connecting portion, and the plurality of second lines extend from the first connecting portion, the first routing portion, the second connecting portion, the second routing portion in sequence to the third connecting portion.

5. The server according to claim 2, characterized in that: The first connection portion includes a plurality of first connection ends, each of which is provided with a plurality of first connection points, and the plurality of first connection points of each of the first connection ends are connected to the corresponding first circuits. The first connector includes a hard board, and the hard board includes a plurality of second connection points, and the plurality of second connection points are connected to the plurality of first connection points.

6. The server according to claim 5, characterized in that: The hard board includes a first connection surface and a second connection surface arranged back to back, the multiple second connection points are arranged in two rows, the two rows of second connection points are arranged at intervals on the first connection surface, and the multiple first connection points of the first connection end corresponding to the hard board are arranged in two rows, and one row of first connection points corresponds to one row of second connection points.

7. The server according to claim 5, characterized in that: The hard board includes a first connection surface and a second connection surface disposed opposite to each other, and the plurality of second connection points include some second connection points located on the first connection surface and some second connection points located on the second connection surface; The first connecting end comprises a first connecting layer and a second connecting layer spaced apart in a thickness direction thereof, and at least a portion of the hard board is located between the first connecting layer and the second connecting layer; The multiple first connection points include a first group of connection points and a second group of connection points. The first group of connection points are arranged on the surface of the first connection layer facing the second connection layer and connected to the second connection points on the first connection surface; the second group of connection points are arranged on the surface of the second connection layer facing the first connection layer and connected to the second connection points on the second connection surface.

8. The server according to claim 7, characterized in that: The first circuit includes multiple layers arranged along the thickness direction, part of the first circuit is located in the first connection layer and connected to the first group of connection points, and part of the first circuit is located in the second connection layer and connected to the second group of connection points.

9. The server according to claim 5, characterized in that: The hard board includes a first connecting surface and a second connecting surface arranged back to back, a first contact located on the first connecting surface, and a second contact located on the second connecting surface, and a plurality of the second connecting points are arranged in two rows, wherein the second connecting points in one row are connected to the first contacts, and the second connecting points in the other row are connected to the second contacts.

10. The server according to claim 5, characterized in that: The hard board includes a first connection surface and a second connection surface disposed opposite to each other, and the second connection point includes a second connection point located on the first connection surface and a second connection point located on the second connection surface; The first connection end includes an upper surface and a lower surface that are arranged opposite to each other, and the first connection end includes a first sub-portion and a second sub-portion, and the first sub-portion and the second sub-portion are arranged at intervals along a width direction of the first connection end. The multiple first connection points include a first group of connection points and a second group of connection points, the first group of connection points are arranged in the first sub-section and located on the upper surface, and connected to the second connection points on the second connection surface; the second group of connection points are arranged in the second sub-section and located on the lower surface, and connected to the second connection points on the first connection surface.

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