TWI579683B - Server - Google Patents

Description

server

The invention relates to a server, in particular to a connection between a first signal transmission line electrically connected to a motherboard, a bridge board disposed separately from the motherboard, and a second signal transmission line electrically connected to the replaceable device to establish a host. A high speed signal transmission between the board and the replaceable device and the server of the first signal transmission line and the center axis of the golden finger connector of the second signal transmission line are not collinear.

With the advancement of electronic technology, the server has become a widely used information processing system in the industry. The server usually includes main components, power supply, various magnetic disk drives (such as hard disk, optical disk drive), etc., due to the increasing demand for server functions and the increasingly small size, in the same chassis. There are more and more requirements for installing multiple motherboards, and each motherboard itself is getting smaller and smaller. On the one hand, it requires hot swapping of the motherboard, and on the other hand, it requires a limited space on the motherboard. More parts are laid out, making the design and manufacturing costs of the server high. In addition, the motherboard usually uses its own board-to-board connector to be inserted into the middle plane and is transmitted via the connection of the transmission and cable on the intermediate bridge to electrically connect to the server hard disk. This type of connection not only causes a time-consuming and labor-intensive assembly process, but also causes high-speed signal transmission between the motherboard and the hard disk to be affected by the excessively long transmission path and easy to be bridged by the intermediate bridge. The interference of other transmission signals on the board is excessively distorted, and it is also prone to the problem that the cable is broken during the assembly process due to assembly interference or direct collision of the connector components.

It is an object of the present invention to provide a connection between a first signal transmission line electrically connected to a motherboard, a bridge board disposed separately from the motherboard, and a second signal transmission line electrically connected to the replaceable device to establish a motherboard and The high-speed signal transmission between the switching devices and the server of the first signal transmission line and the central axis of the golden finger connector of the second signal transmission line are not collinear to solve the above problem.

According to an embodiment, the server of the present invention includes a connector, a connector limiting device, and at least one replaceable device. The connector comprises a motherboard, a bridge board, a signal transmission port, and a first signal transmission line. The signal transmission port is disposed on the bridge board. The first signal transmission line is electrically connected to the motherboard. The connector limiting device comprises a tray, a receiving frame, and a second signal transmission line. The accommodating frame is fixed on the tray. The second signal transmission line is fixed in the accommodating frame and has a gold finger joint. The first signal transmission line is electrically connected to a position on the bridge board that is not collinear with one of the central axes of the gold finger joint. The at least one replaceable device is disposed on the tray and electrically connected to the second signal transmission line. When the signal transmission port is docked with the second signal transmission line, the gold finger connector is inserted into the signal transmission port to be The bridge board and the first signal transmission line establish signal transmission between the at least one replaceable device and the motherboard.

According to another embodiment, the server of the present invention includes a connector, a connector limiting device, and at least one replaceable device. The connector comprises a motherboard, a bridge board, a signal transmission port, and a first signal transmission line. The signal transmission port is disposed on the bridge board. The first signal transmission line is electrically connected to the motherboard. The connector limiting device comprises a tray, a receiving frame, and a second signal transmission line. The tray has at least one side panel having a longitudinal opening and a transverse channel, the longitudinal opening being in communication with the lateral channel. The accommodating frame protrudes toward the at least one side plate to form a limiting guide post. The limiting guiding post is slidably disposed in the lateral guiding slot through the longitudinal opening and is movable relative to the lateral guiding slot to enable the accommodating frame The housing frame is relatively close to or away from the side panel. The second signal transmission line is fixed in the accommodating frame and has a gold finger joint. The first signal transmission line is electrically connected to a position on the bridge board that is co-linear with a central axis of the gold finger joint. The at least one replaceable device is disposed on the tray and electrically connected to the second signal transmission line. When the second signal transmission line is docked with the signal transmission port, the receiving frame is along the limit guiding column. Moving in the lateral channel is relatively close to or away from the side plate to guide the gold finger connector to be inserted into the signal transmission port and establish the at least one replaceable device and the host via the bridge board and the first signal transmission line Signal transmission between boards.

Compared with the prior art, the present invention adopts a design in which the accommodating frame is designed to be relatively close to or away from the side plate via a limit between the limit guide post and the lateral guide groove, so as to allow the user to finely adjust the connector limit device. The relative position of the connector ensures that the gold finger joint can be smoothly inserted into the signal transmission port, thereby effectively preventing the connector from being damaged due to assembly interference or direct collision between the connector and the limit device. Problem (such as signal transmission line break). In this way, the present invention greatly simplifies the assembly process of the connector limiting device and the connector through the above simple assembly operation. In addition, since the present invention uses a second signal transmission line, a bridge board disposed separately from the motherboard, and a connection design between the first signal transmission lines to establish high-speed signal transmission between the motherboard and the replaceable device, Therefore, the signal transmission is not excessively distorted by the length of the transmission path, and the layout of the first signal transmission line and the second signal transmission line does not need to occupy too much space of the motherboard, and thus is not subject to the smaller and smaller size of the motherboard. The electronic components on the upper and lower limits are more and more dense, that is, the present invention can effectively improve the design flexibility of the server and reduce the manufacturing cost thereof.

The advantages and spirit of the present invention will be further understood from the following embodiments and the accompanying drawings.

Please refer to FIG. 1 , which is a perspective view of a server 10 according to an embodiment of the present invention. As shown in FIG. 1 , the server 10 includes at least one connector 12 and at least one connector limiting device. 14, and at least one replaceable device 16 (only one shown in Figure 1, but not limited thereto), wherein the replaceable device 16 is shown in dashed lines, and the connector 12 and the connector limiting device The number of 14 shows two in Figure 1, but is not limited to this. The following is only a detailed description of the design of the connector 12, the connector limiting device 14, and the replaceable device 16 on one side of the server 10 as shown in FIG. 1 as for the other side of the server 10. The design of the connector 12 and the connector limiting device 14 can be deduced by analogy and will not be described herein.

Please refer to FIG. 1 , FIG. 2 , FIG. 3 , and FIG. 4 , FIG. 2 is a partial enlarged view of the connector 12 of FIG. 1 , and FIG. 3 is a connector limit device of FIG. 1 . FIG. 4 is an exploded view of the connector limiting device 14 of FIG. 3. As shown in FIG. 1, FIG. 2, FIG. 3, and FIG. 4, the connector 12 includes a host. The board 18 (shown in phantom in FIG. 1), a bridge board 20, a signal transmission port 22, and a first signal transmission line 24, and the connector limiting device 14 includes a second signal. The transmission line 26, a tray 28, and a housing frame 30 are provided. The signal transmission port 22 is disposed on the bridge board 20, the first signal transmission line 24 is electrically connected to the bridge board 20 and the motherboard 18, and the second signal transmission line 26 is fixed in the housing frame 30 and has a gold finger joint 27, The extractable device 16 is disposed on the tray 28 and electrically connected to the second signal transmission line 26. In this embodiment, the replaceable device 16 is preferably a hard disk (but not limited thereto), the signal The transmission port 22 can be correspondingly a hard disk signal transmission port (such as mini serial attached SCSI (mini SAS) transmission port, but not limited to this), the golden finger connector 27 corresponds to The ground is a hard disk signal connector (such as a mini-sequence small computer system interface signal connector, but is not limited thereto), whereby when the signal transmission port 22 and the second signal transmission line 26 are docked, the device 16 can be replaced. Electrical connection to connector 12 is made via connector stop 14 to establish high speed signal transmission between swappable device 16 and motherboard 18.

The following is a detailed description of the structural design of the connector 12 and the connector limiting device 14. As can be seen from FIG. 1, FIG. 2, FIG. 3, and FIG. 4, the tray 28 has at least one side plate 32 (in the first 1 shows two, but not limited to this, the side plate 32 is formed with at least one longitudinal opening 34 and at least one lateral guiding groove 36 (two are shown in Fig. 1, but not limited thereto), longitudinal The opening 34 is in communication with the transverse channel 36 for guiding positioning. The receiving frame 30 protrudes toward the side plate 32 to form at least one limiting guide post 38 (two are shown in FIG. 1 , but not limited thereto), and another elastic arm 40 is formed on one side of the limiting guiding post 38 . The limit guide post 38 may preferably be a T-shaped guide post (but not limited thereto, and may be modified by other limit structure designs, such as bent guide posts) to be slidable through the longitudinal opening 34. When it is disposed in the lateral guiding groove 36, it can be moved relative to the lateral guiding groove 36 to make the receiving frame 30 relatively close to or away from the side plate 32 (that is, the receiving frame 30 can utilize the limiting guiding post 38 and the lateral guiding The limit design between the slots 36 is performed with a limited degree of movement along the lateral guide groove 36 along the ±Y-axis direction as shown in FIG. 1 to achieve the insertion of the guideable gold finger joint 27 into the signal transmission port 22 In the purpose.

In addition, in this embodiment, the accommodating frame 30 can have a receiving recess 42 , and the accommodating recess 42 has a resilient arm 40 on one side of the limiting guide post 38 , thereby improving the structural elasticity of the elastic arm 40 . Further, the accommodating frame 30 can include a first bracket 44 and a second bracket 46. The first bracket 44 and the second bracket 46 are disposed on two sides of the second signal transmission line 26 to fix the second signal transmission line 26. And the first bracket 44 has a limit guide post 38 toward one side of the side plate 32. The fixing manner of the first bracket 44 and the second bracket 46 can be preferably screwed (but not limited thereto, and other bracket fixing designs, such as structural fastening, etc.) can be used, for example. As shown in FIG. 3 and FIG. 4 , a plurality of through holes 48 may be respectively disposed on two sides of the first bracket 44 and the second bracket 46 , and the through holes 48 on both sides of the first bracket 44 may be combined with the second bracket 46 . The side through holes 48 are aligned with each other, whereby the first bracket 44 and the second bracket 46 can be respectively locked to the through holes 48 on both sides of the first bracket 44 and the through holes 48 on both sides of the second bracket 46 by the two screws 50. The second signal transmission line 26 is fixed in a manner.

As for the fixed design between the accommodating frame 30 and the side plate 32, as shown in FIG. 1, the position of the limit guide post 38 on the lateral guide groove 36 has a sliding stroke L, and the elastic arm 40 corresponds to the lateral guide. A limiting fastener 52 is protruded from the slot 36. The receiving frame 30 can be hooked on the lateral guiding groove 36 and the limiting guiding post 38 against the lateral guiding groove 36 by using the limiting fastener 52. In a manner, the accommodating frame 30 is fixed to the side plate 32 to restrict the displacement of the accommodating frame 30 in the ±X axis and the ±Z axis direction as shown in FIG.

In practical applications, as shown in FIG. 2 and FIG. 3, one side of the accommodating recess 42 may have a plurality of guide holes 54 (two are shown in FIG. 3, but are not limited thereto), and the connector 12 can further include a carrier 56 for carrying the bridge board 20 and the signal transmission port 22, the carrier 54 can be formed with a plurality of guide pins 58 corresponding to the plurality of guide holes 54, whereby when the second signal transmission line 26 is When the signal transmission port 22 is docked, the guide hole 54 provides a guide pin 58 to be inserted to guide the gold finger joint 27 to be inserted into the signal transmission port 22, thereby generating a guiding alignment function.

Here, the assembly operation of the connector 12 and the connector limiting device 14 will be described. Please refer to FIG. 1 , FIG. 5 , and FIG. 6 , and FIG. 5 is the limit of the housing frame 30 of FIG. 3 . FIG. 6 is an assembled view of the guide pin 58 of the connector 12 of FIG. 2 aligned with the guide hole 54 of the accommodating frame 30. When the user wants to assemble the connector 12 and the connector limiting device 14, the user only needs to first accommodate the receiving frame of the second signal transmission line 26 electrically connected to the replaceable device 16. The limit guide post 38 on the 30 is aligned with the longitudinal opening 34 of the side plate 32, and the frame 30 is depressed to accommodate the limit guide post 38 along an assembly direction A (ie, -Z as shown in Fig. 5). The axial direction) enters the lateral guide groove 36 through the longitudinal opening 34, and then pushes the accommodating frame 30 along an assembly direction B (ie, the +X-axis direction as shown in FIG. 5) in the lateral guide groove 36. One end P _{1 of the} lateral guide groove 36 moves.

In the above process, when the limit guide post 38 enters the lateral guide groove 36 through the longitudinal opening 34, the side plate 32 will press the limit fastener 52 to deform the elastic arm 40, and then, when the limit guide The post 38 moves in the lateral guide groove 36 toward the end P ₁ of the lateral guide groove 36 as shown in FIG. 1 to the position where the limit fastener 52 is aligned to the lateral guide groove 36 (at this time, The position guide post 38 abuts against the end P _{1 of the} lateral guide groove 36, and the elastically deformed elastic arm 40 can provide an elastic force to cause the limit fastener 52 to be ejected from the lateral guide groove 36 and hooked to the lateral guide groove 36. One of the front ends P ₂ . In this way, the biaxial limit design of the distal end P ₂ of the lateral guide groove 36 is resisted by the limit guide post 38 against the end P _{1 of the} lateral guide groove 36 and the limit fastener 52 (as shown in FIG. 1 ). The illustrated housing 30 is displaced in the ±X-axis and ±Z-axis directions, and the housing frame 30 can be stably disposed on the side plate 32 and can only be along the lateral guide 36. The finite degree of movement in the ±Y-axis direction as shown in Fig. 1 is shown.

Next, the user can perform the docking of the connector limiting device 14 and the connector 12, that is, the user can align the guiding pin 58 of the carrier 56 of the connector 12 with the receiving frame 30. The guide hole 54 pushes the connector 12 to insert the guide pin 58 into the guide hole 54 of the accommodating frame 30 along an assembly direction C (ie, the +X axis direction as shown in FIG. 6), thereby guiding the gold finger joint. 27 is inserted in the signal transmission port 22 to establish high-speed signal transmission between the replaceable device 16 and the motherboard 12 via the bridge board 20 and the first signal transmission line 24 (as shown in FIG. 1), as described above, Through the accommodating frame 30, only a limited movement in the ±Y-axis direction can be performed with respect to the lateral guide groove 36, and the user can fine-tune the connector limit during the process of inserting the guide pin 58 into the guide hole 54. The relative position of the device 14 and the connector 12 ensures that the gold finger joint 27 can be smoothly inserted into the signal transmission port 22, thereby effectively preventing the connector 12 from interfering with the connector limiting device 14 or directly Component damage caused by collision.

In this way, the present invention greatly simplifies the assembly process of the connector limiting device 14 and the connector 12 through the above simple assembly operation. In addition, since the present invention employs the second signal transmission line 26 and the host The bridge board 20 disposed separately from the board 18 and the connection between the first signal transmission lines 24 are designed to establish high speed signal transmission between the motherboard 18 and the replaceable device 16 in place of the motherboard used in the prior art. The design of the board-to-board connector and the intermediate bridge board and the connection between the transmission board and the cable on the intermediate bridge board, therefore, the layout and movement of the high-speed signal transmission for the replaceable device 16 on the server 10. The wire can no longer be limited by the space of the motherboard 18, whereby more other components can be placed on the motherboard 18. In addition, since the first signal transmission line 24 and the second signal transmission line 26 (both of which are used to transmit signals) have relatively good electrical conductivity, that is, the transmission of the signal is not excessively distorted by the length of the transmission path. For example, if the first signal transmission line 24 and the second signal transmission line 26 are used to transmit the mini-sequence small computer system interface signal between the north bridge chip of the motherboard 18 and the replaceable device 16, the transmission path length will not be affected. The effect is excessive distortion, that is, the signals transmitted by the first signal transmission line 24 and the second signal transmission line 26 can satisfy the component layout and signal related line length, line width, line spacing, impedance, timing, electromagnetic interference, etc. on the motherboard 18. Requirements. Since the arrangement of the first signal transmission line 24 and the second signal transmission line 26 does not need to occupy too much space of the motherboard 18, it is not limited by the smaller and smaller size of the motherboard 18 and the increasingly dense electronic components thereon. In summary, through the above design, the present invention can effectively improve the design flexibility of the server and reduce the manufacturing cost thereof.

It is worth mentioning that, in practical applications, the present invention can adopt a design in which the first signal transmission line and the central axis of the gold finger joint are not collinear. For example, please refer to FIG. 1 and FIG. 7 , and FIG. 7 FIG. 6 is a partial side view of the connector 12 and the connector limiting device 14. As shown in FIG. 7, the first signal transmission line 24 is electrically connected to the motherboard 18 and electrically connected to the bridge board 24 and the gold finger joint. A position where one of the center axes L is not collinear, for example, in this embodiment, the bridge plate 24 may have a wide plate portion 60 and a narrow plate portion 62 extending rearward from the wide plate portion 60 to be L-shaped. (But not limited thereto), the signal transmission port 22 is disposed on the wide plate portion 60, and the first signal transmission line 24 is electrically connected to the narrow plate portion 62 so as not to be collinear with the center axis L of the gold finger joint 27. In this way, the first signal transmission line 24 and the center axis L of the gold finger joint 27 are not collinear, and the accommodating frame 30 can only perform a limited movement in the ±Y-axis direction with respect to the lateral guide groove 36. (As shown in FIG. 1), the present invention can further prevent the first signal transmission line 24 from being directly impacted by the connector limiting device 14 during the process of docking the connector 12 and the connector limiting device 14. The breakage occurred. It should be noted that, in practical applications, the present invention may only adopt a design in which the first signal transmission line 24 and the central axis L of the gold finger joint 27 are not collinear, or only the housing frame 30 may be used only relative to the horizontal direction. The guide groove 36 is designed to have a limited degree of movement in the ±Y-axis direction, thereby simplifying the structural design of the servo 10.

In addition, the present invention can also adopt a design in which the first signal transmission line is co-linear with the central axis of the gold finger joint. For example, please refer to FIG. 1 and FIG. 8 , and FIG. 8 is another according to the present invention. A partial side view of the connector 12' and the connector limiting device 14 is provided in the embodiment. The component symbols in this embodiment are the same as those in the above embodiment, and represent the same structure. Or function, this embodiment differs from the above embodiment only in the connection design between the first signal transmission line and the bridge board. As shown in FIG. 8, the connector 12' includes a motherboard 18 (not shown in FIG. 8, which can be referred to the above embodiment and FIG. 1 for related description), a bridge 20', a signal transmission port 22, and a first signal transmission line 24', the connector limiting device 14 includes a second signal transmission line 26, a tray 28 (not shown in FIG. 8, the relevant description can refer to the above embodiment and FIG. 1), and the receiving frame The body 30, wherein the first signal transmission line 24' is electrically connected to the motherboard 18 and electrically connected to a position on the bridge board 20' that is co-linear with the center axis L of the gold finger joint 27. In this way, the design of the limited movement in the ±Y-axis direction (as shown in FIG. 1) can be performed only through the accommodating frame 30 through the accommodating frame 30 to provide a connection buffering effect, and the present invention can be avoided. The first signal transmission line 24' breaks due to excessive force during the process of docking the connector 12' and the connector limiting device 14. As for other detailed descriptions of the connector 12', reference may be made to the above embodiment, and details are not described herein.

Compared with the prior art, the present invention adopts a design in which the accommodating frame is designed to be relatively close to or away from the side plate via a limit between the limit guide post and the lateral guide groove, so as to allow the user to finely adjust the connector limit device. The relative position of the connector ensures that the gold finger joint can be smoothly inserted into the signal transmission port, thereby effectively preventing the connector from being damaged due to assembly interference or direct collision between the connector and the limit device. Problem (such as signal transmission line break). In this way, the present invention greatly simplifies the assembly process of the connector limiting device and the connector through the above simple assembly operation. In addition, since the present invention uses a second signal transmission line, a bridge board disposed separately from the motherboard, and a connection design between the first signal transmission lines to establish high-speed signal transmission between the motherboard and the replaceable device, Therefore, the signal transmission is not excessively distorted by the length of the transmission path, and the layout of the first signal transmission line and the second signal transmission line does not need to occupy too much space of the motherboard, and thus is not subject to the smaller and smaller size of the motherboard. The electronic components on the upper and lower limits are more and more dense, that is, the present invention can effectively improve the design flexibility of the server and reduce the manufacturing cost thereof. The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

10‧‧‧Server

12, 12’‧‧‧ connectors

14‧‧‧Connector Limiting Device

16‧‧‧Can be replaced

18‧‧‧ motherboard

20, 20’‧‧‧ Bridge

22‧‧‧Signal transmission埠

24, 24'‧‧‧ first signal transmission line

26‧‧‧Second signal transmission line

27‧‧‧Gold finger joint

28‧‧‧Tray

30‧‧‧ housing frame

32‧‧‧ side panels

34‧‧‧Longitudinal opening

36‧‧‧Transverse guides

38‧‧‧Limited guide column

40‧‧‧Bounce arm

42‧‧‧ accommodating grooves

44‧‧‧First bracket

46‧‧‧second bracket

48‧‧‧Perforation

50‧‧‧ screws

52‧‧‧Limited fasteners

54‧‧‧ Guide hole

56‧‧‧ bearing seat

58‧‧‧Marketing

60‧‧‧ Wide Board

62‧‧‧Narrow plate

T‧‧‧Sliding stroke

A, B, C‧‧‧ Assembly direction

P ₁ ‧‧‧ end

P ₂ ‧‧‧ front end

L‧‧‧ center axis

1 is a perspective view of a server according to an embodiment of the present invention. Figure 2 is a partial enlarged view of the connector of Figure 1. Figure 3 is a partially enlarged schematic view of the connector limiting device of Figure 1. Figure 4 is a schematic exploded view of the connector limiting device of Figure 3. Fig. 5 is a schematic view showing the assembly of the positional guide post of the accommodating frame of Fig. 3 aligned with the longitudinal opening of the side plate. Fig. 6 is a schematic view showing the assembly of the guide pin of the connector of Fig. 2 aligned with the guide hole of the accommodating frame. A side view of the connector and connector retaining device of Figure 7 and Figure 6. Figure 8 is a partial side elevational view of the connector and connector retaining device in accordance with another embodiment of the present invention.

12‧‧‧Connector

14‧‧‧Connector Limiting Device

20‧‧‧Bridge board

22‧‧‧Signal transmission埠

24‧‧‧First signal transmission line

26‧‧‧Second signal transmission line

27‧‧‧Gold finger joint

30‧‧‧ housing frame

56‧‧‧ bearing seat

58‧‧‧Marketing

60‧‧‧ Wide Board

62‧‧‧Narrow plate

L‧‧‧ center axis

Claims (9)

A server comprising: a connector comprising: a motherboard; a bridge board; a signal transmission port disposed on the bridge board; and a first signal transmission line electrically connected to the motherboard; A connector limiting device includes: a tray; a receiving frame fixed to the tray and including a first bracket and a second bracket; and a second signal transmission line fixed to the receiving a first metal signal transmission line is electrically connected to a position on the bridge board that is not collinear with a central axis of the gold finger joint, and the first bracket and the second bracket are disposed in the second The two sides of the signal transmission line are fixed to the second signal transmission line; and at least one replaceable device is disposed on the tray and electrically connected to the second signal transmission line, and when the signal transmission port is connected to the second signal transmission line The golden finger connector is inserted into the signal transmission port to establish signal transmission between the at least one replaceable device and the motherboard via the bridge board and the first signal transmission line. The server of claim 1, wherein the bridge plate has a wide plate portion and an L-shaped portion extending rearward from the wide plate portion, and the signal transmission port is disposed on the wide plate portion. The first signal transmission line is electrically connected to the narrow plate portion to be non-collinear with the central axis of the gold finger joint. The server of claim 1, wherein the connector further comprises a carrier for carrying The bridge board and the signal transmission port, the carrier seat is formed with at least one guide pin protruding toward the receiving frame body, and the receiving frame body forms a guiding hole corresponding to the position of the at least one guiding pin, when the first signal is When the transmission line is docked with the signal transmission port, the at least one guide pin is disposed in the guide hole to guide the gold finger connector to be inserted into the signal transmission port. The server of claim 1, wherein a plurality of perforations are respectively disposed on two sides of the first bracket and the second bracket, and the perforations on both sides of the first bracket and the two sides of the second bracket The perforations are aligned with each other and are locked by a plurality of screws. A server comprising: a connector comprising: a motherboard; a bridge board; a signal transmission port disposed on the bridge board; and a first signal transmission line electrically connected to the motherboard; a connector limiting device comprising: a tray having at least one side plate, a longitudinal opening and a lateral guiding groove formed in the at least one side plate, the longitudinal opening communicating with the lateral guiding groove; Forming a limiting guide column toward the at least one side plate, the limiting guiding post is slidably disposed in the lateral guiding slot through the longitudinal opening and movable relative to the lateral guiding slot to enable the receiving frame a second signal transmission line is fixed in the accommodating frame and has a gold finger joint. The first signal transmission line is electrically connected to the bridge board and a central axis of the gold finger joint. The location of the collinear line; At least one replaceable device is disposed on the tray and electrically connected to the second signal transmission line. When the second signal transmission line is docked with the signal transmission port, the receiving frame body is along with the limit guiding column Moving in the lateral guide slot is relatively close to or away from the side panel to guide the gold finger joint to be inserted into the signal transmission port and establish the at least one replaceable device via the bridge plate and the first signal transmission line Signal transmission between motherboards. The server of claim 5, wherein the accommodating frame has a receiving groove, the accommodating groove has a spring arm facing one side of the limiting guiding column, and the elastic arm corresponds to the lateral guiding groove A limiting fastener is protruded from the position, and the limiting fastener is hooked to a front end of the lateral guiding groove. The server of claim 6, wherein the position of the limit guide column sliding on the lateral guide groove has a sliding stroke, and when the limit guide post passes through the longitudinal opening to enter the lateral guide groove, The side plate presses the limiting fastener to deform the elastic arm, and when the limiting guiding column moves in the lateral guiding groove toward one end of the lateral guiding groove, the sliding stroke is performed to align the limiting fastener When the position of the lateral guide groove is reached, the elastically deformed elastic arm provides an elastic force to eject the limit fastener from the lateral guide groove and hooks to a front end of the lateral guide groove. The server of claim 6, wherein one side of the receiving recess has a plurality of guiding holes, the connector further comprising a carrier for carrying the bridge board and the signal transmission port, the carrier pair A plurality of guide pins are protruded from the guide holes, and when the second signal transmission lines are docked with the signal transmission port, the guide holes provide the guide pins to guide the gold finger joints to be inserted into the signal transmission In the middle. The server of claim 5, wherein the accommodating frame comprises a first bracket and a second a bracket, the first bracket and the second bracket are disposed on two sides of the second signal transmission line to fix the second signal transmission line, and the first bracket has the limiting pillar toward one side of the at least one side panel, A plurality of perforations are respectively disposed on the two sides of the first bracket and the second bracket, and the through holes on both sides of the first bracket are aligned with the through holes on both sides of the second bracket and are locked by a plurality of screws solid.