Plugging device, connector, electronic equipment and signal transmission method

Abstract

The embodiment of the invention discloses a plugging device, a connector, electronic equipment and a signal transmission method. The plugging device is used for being matched with a connector and comprises a device body and a plugging part, the plugging part is arranged along the edge of the device body, the plugging part comprises basic arrangement surfaces located on the two sides of the plugging part, and the plugging part further comprises an expansion arrangement surface; and golden finger pins are arranged on the basic arrangement surface and the extended arrangement surface. Thus, through structural optimization of the connector assembly, the number of pins of the connector can be increased in unit area, and the number of golden finger pins can be effectively increased in the same layout breadth range, so that more signal addresses are accommodated, and the I / O number of a product is effectively improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of computer hardware, and in particular to a plug-in device, a connector, an electronic device, and a signal transmission method. Background Art

[0002] Common plug-in connectors are mostly double-edge connectors, which are usually used in conjunction with a male socket and a female socket. The gold finger pins on the male socket side are generally a two-dimensional plane interface, and the adapter pins on the female socket side are also a two-dimensional plane interface, which limits the number of signal channel arrangements per unit area of ​​the product.

[0003] Taking board-type devices as an example, the gold finger pins are covered on both sides of the plug-in part of the carrier board. For the format size of the plug-in part where the gold finger pins can be arranged, the number of pins used to establish signal channels per unit area is limited, which affects the product's capacity design and improvement. With the continuous development of the big data era, the capacity requirements for storage products are getting higher and higher. When the size of the whole machine remains unchanged, the capacity cannot be effectively expanded based on the two-dimensional plane interface. In other words, it is impossible to increase the number of pins used to increase the signal transmission channel per unit area. Summary of the invention

[0004] The embodiments of the present application provide a plug-in device, a connector, an electronic device and a signal transmission method. By optimizing the structure of the connector assembly, the number of connector pins can be increased within a unit area.

[0005] The first aspect of the embodiment of the present application provides a plug-in device for matching with a connector, the plug-in device includes a device body and a plug-in portion, the plug-in portion is arranged along the edge of the device body; the plug-in portion includes a basic layout surface located on both sides thereof, and the plug-in portion also includes an extended layout surface; gold finger pins are arranged on both the basic layout surface and the extended layout surface. In this way, within the same layout width range, the number of gold finger pins can be effectively increased, thereby accommodating more signal addresses, providing technical guarantee for increasing the number of I / Os of the product.

[0006] In actual applications, the specific number and spacing of signal pins on the two basic layout surfaces may be the same or different, and may be aligned or staggered; similarly, the number and spacing of signal pins on the extended layout surface may be the same or different from the number and spacing of signal pins on the basic layout surface.

[0007] In actual production, the gold finger pins on the basic layout surface and the extended layout can be realized through production processes such as grooving and plating.

[0008] Based on the first aspect, the embodiment of the present application also provides a first implementation of the first aspect: the extended layout surface includes a first extended layout surface, wherein the first extended layout surface is located at the plug-in side end surface of the plug-in portion, and the plug-in side end surface is used to adapt to the bottom of the slot on the connector side to achieve electrical connection of the corresponding pins. Taking the arrangement of gold finger pins only on the surfaces of both sides of the plug-in portion as a comparative example, within the same layout width, the number of signal pins arranged at intervals on the first extended layout surface in this embodiment is 1.5 times that of the comparative example.

[0009] Based on the first aspect, or the first implementation of the first aspect, the embodiment of the present application further provides a second implementation of the first aspect: the basic arrangement surface is located on both side surfaces of the plug-in portion, which has the characteristics of simple structure and good processability.

[0010] Based on the first aspect, or the first implementation of the first aspect, the embodiment of the present application further provides a second implementation of the first aspect: the basic arrangement surface is formed by being concave from both side surfaces of the device body, thereby forming a structural basis for further adding gold finger pins.

[0011] Based on the second implementation of the first aspect, the embodiment of the present application also provides a third implementation of the first aspect: the plug-in portion and the device body are connected at a step surface, and the step surface is arranged to intersect with the basic layout surface, for example but not limited to, the step surface is perpendicular to the basic layout surface; the extended layout surface also includes a second extended layout surface, and the second extended layout surface is located on the step surface.

[0012] Based on the third implementation of the first aspect, the embodiment of the present application further provides a fourth implementation of the first aspect: the step surface may be two, and the two step surfaces are arranged opposite to each other on both sides of the connection between the plug-in portion and the device body. Taking the arrangement of gold finger pins only on the surfaces of both sides of the plug-in portion as a comparative example, within the same layout width, the number of signal pins arranged at intervals based on the first extended layout surface is 2.5 times that of the comparative example.

[0013] In other practical applications, the second extended arrangement surface may be provided only on the step surface located on one side of the plug-in portion.

[0014] Based on the second implementation of the first aspect, or the third implementation of the first aspect, the embodiment of the present application further provides a fourth implementation of the first aspect: a reinforcing portion is provided at the end of the plug-in portion, and the reinforcing portion is arranged to intersect with the extension direction of the plug-in portion. In this way, when performing a plug-in operation, the reinforcing portion at the end of the plug-in portion can act as a reinforcing rib, which can effectively avoid the occurrence of eccentric load insertion loss.

[0015] In practical applications, the reinforcement portion may be disposed only at one end of the plug-in portion, which can also improve the bearing strength.

[0016] Based on the first aspect, or the first implementation of the first aspect, the embodiment of the present application further provides a fifth implementation of the first aspect: the basic layout surface is formed by being concave from the two side surfaces of the device body, the basic layout surface on one side is separated by a partition to form a plurality of layout surfaces; the extended layout surface also includes a second extended layout surface, and the second extended layout surface is located on the outer surface of the partition. Thus, a structural basis for further adding gold finger pins is formed.

[0017] Based on the fifth implementation of the first aspect, the embodiment of the present application also provides a sixth implementation of the first aspect: the partition portion is a square tooth-shaped portion protruding from both sides of the plug-in portion, and the extended layout surface also includes a third extended layout surface, which is located on the side surface of the square tooth-shaped plug-in portion.

[0018] In practical applications, the third extended arrangement surface is located on both side surfaces of the square tooth-shaped plug-in portion.

[0019] Based on the fifth implementation of the first aspect, the embodiment of the present application also provides a seventh implementation of the first aspect: the partition is a "convex" shape protruding from both sides of the plug-in portion, and the extended layout surface also includes a third extended layout surface, a fourth extended layout surface and a fifth extended layout surface, wherein the third extended layout surface is located on the side surface of the top structure of the "convex" shaped partition, the fourth extended layout surface is located on the step surface of the "convex" shaped partition, and the fifth extended layout surface is located on the side surface of the bottom structure of the "convex" shaped partition.

[0020] In actual application, the third extended layout surface is located on both side surfaces of the top structure of the "convex" shaped partition, the fourth extended layout surface is located on both side step surfaces of the "convex" shaped partition, and the fifth extended layout surface is located on both side surfaces of the bottom structure of the "convex" shaped partition.

[0021] Based on the first aspect, or the first implementation manner of the first aspect, or the second implementation manner of the first aspect, or the third implementation manner of the first aspect, or the fourth implementation manner of the first aspect, or the fifth implementation manner of the first aspect, or the sixth implementation manner of the first aspect, or the seventh implementation manner of the first aspect, the embodiment of the present application also provides an eighth implementation manner of the first aspect: the plug-in device is a board-type device, and its device body is a single board, a chip is arranged on the single board, and the chip is electrically connected to the gold finger pins of the plug-in part.

[0022] In practical applications, the definitions of various signal pins on the basic layout plane and the extended layout plane include but are not limited to: power supply, ground pin, control signal, clock signal, address signal, data signal, etc., which can be specifically determined according to the overall design in different scenarios.

[0023] The second aspect of the embodiment of the present application provides a connector, which is used to adapt to a plug-in device, including a slot provided on a connector body, the slot including a basic layout surface located on both sides thereof, and the slot also including an extended layout surface; pins are arranged on both the basic layout surface and the extended layout surface. Similarly, based on the arrangement of the extended layout surface, the number of pins is effectively increased.

[0024] Exemplarily, the pins arranged corresponding to the plug-in device in the slot may be gold finger pins or spring clip pins.

[0025] Based on the second aspect, the embodiment of the present application further provides a first implementation of the second aspect: the extended layout surface includes a first extended layout surface, and the first extended layout surface is located at the bottom surface of the slot.

[0026] Based on the second aspect, or the first implementation of the second aspect, the embodiment of the present application further provides a second implementation of the second aspect: the basic arrangement surface is located on the two side walls of the slot.

[0027] Based on the second aspect, or the first embodiment of the second aspect, or the second embodiment of the second aspect, the embodiment of the present application also provides a third embodiment of the second aspect: the extended layout surface includes a second extended layout surface, and the second extended layout surface is located on the outer surface of the connector body next to the notch of the slot.

[0028] In practical applications, the second extended arrangement surface may be located on the outer surface of the connector body on both sides of the notch of the slot.

[0029] Based on the second aspect, or the first implementation of the second aspect, the embodiment of the present application also provides a fourth implementation of the second aspect: the basic layout surface is formed by protruding from the connector body into the groove, and the basic layout surface located on one side is separated by a partition recess to form a plurality of layout surfaces; the extended layout surface also includes a second extended layout surface, and the second extended layout surface is located on the side wall surface of the partition recess.

[0030] In practical applications, the second extended arrangement surface may be located on a plurality of sequentially adjacent side wall surfaces that separate the recessed portions.

[0031] A third aspect of an embodiment of the present application provides an electronic device, which includes a connector and a second device, wherein the connector is electrically connected to the second device, and the connector is the connector as described above.

[0032] Based on the third aspect, the embodiment of the present application further provides a first implementation of the third aspect: the electronic device also includes a plug-in device, the gold finger pins of the plug-in device are electrically connected to the pins of the connector, and the plug-in device adopts the plug-in device described above.

[0033] In actual applications, pins are arranged at intervals on the groove walls and / or the bottom surface of the groove on both sides of the slot on the connector side, and are respectively arranged in a one-to-one correspondence with the gold finger pins on the two basic layout surfaces and the extended layout surface on the plug-in device side. In other words, the shape of the slot on the connector side is compatible with the plug-in part on the plug-in device side, and the layout of the gold finger pins arranged on both is consistent. The "gold finger pin layout" here refers to the ability to achieve electrical connection between the gold finger pins on the plug-in part and the pins in the slot, which may include the position and spacing of the gold finger pins, and may also include the size and number of the gold finger pins, etc.

[0034] In practical applications, the electronic device can be a server, computer or high-performance computing cluster, for high-power, high-integration, ultra-large-scale data center servers; in addition, the electronic device can also be a switch or router. Taking the storage product architecture scenario as an example, it can be applied to the connection between memory sticks and adapter connectors, and the above technical advantages are particularly significant.

[0035] Exemplarily, the second device may be a mainboard of the electronic device, or may be another device of the electronic device.

[0036] A fourth aspect of an embodiment of the present application provides a signal transmission method, which is applied to a plug-in device, wherein the plug-in device includes a device body and a plug-in portion, wherein the plug-in portion is arranged along the edge of the device body; the plug-in portion includes basic layout surfaces located on both sides thereof, and the plug-in portion also includes an extended layout surface; gold finger pins are arranged on the basic layout surface and the extended layout surface; the signal transmission method includes the following steps: transmitting a data signal through the gold finger pin, or transmitting a control signal through the gold finger pin.

[0037] Based on the fourth aspect, the embodiment of the present application further provides a first implementation of the fourth aspect: the extended layout surface includes a first extended layout surface, and the first extended layout surface is located on the plug-in side end surface of the plug-in portion.

[0038] In practical applications, the basic arrangement surface may be located on both side surfaces of the plug-in portion.

[0039] Based on the fourth aspect, or the first implementation of the fourth aspect, the embodiment of the present application further provides a second implementation of the fourth aspect: the basic arrangement surface is formed by being concavely formed from both side surfaces of the device body.

[0040] Based on the second implementation of the fourth aspect, the embodiment of the present application also provides a third implementation of the fourth aspect: the plug-in portion and the device body are connected at a step surface, and the step surface is arranged to intersect with the basic layout surface; the extended layout surface also includes a second extended layout surface, and the second extended layout surface is located on the step surface.

[0041] Based on the fourth aspect, or the first implementation of the fourth aspect, the embodiment of the present application also provides a fourth implementation of the fourth aspect: the basic layout surface is formed by being concave from the two side surfaces of the device body, and the basic layout surface located on one side is separated by a partition to form multiple layout surfaces; the extended layout surface also includes a second extended layout surface, and the second extended layout surface is located on the outer surface of the partition.

[0042] Based on the fourth aspect, or the first implementation manner of the fourth aspect, or the second implementation manner of the fourth aspect, or the third implementation manner of the fourth aspect, or the fourth implementation manner of the fourth aspect, the embodiment of the present application also provides a fifth implementation manner of the fourth aspect: the device body is a single board, a chip is provided on the single board, and the chip is electrically connected to the gold finger pins of the plug-in part.

[0043] A fifth aspect of an embodiment of the present application provides a signal transmission method, which is applied to a connector, wherein the connector includes a slot opened on a connector body, the slot includes basic layout surfaces on both sides thereof, and the slot also includes an extended layout surface; pins are arranged on the basic layout surface and the extended layout surface; the signal transmission method includes the following steps: transmitting a data signal through the pin, or transmitting a control signal through the pin.

[0044] Based on the fifth aspect, the embodiment of the present application further provides a first implementation of the fifth aspect: the extended layout surface includes a first extended layout surface, and the first extended layout surface is located at the bottom surface of the slot.

[0045] Based on the fifth aspect, or the first implementation of the fifth aspect, the embodiment of the present application also provides a second implementation of the fifth aspect: the basic layout surface is located on the two side groove walls of the slot.

[0046] Based on the fifth aspect, or the first embodiment of the fifth aspect, or the second embodiment of the fifth aspect, the embodiment of the present application also provides a third embodiment of the fifth aspect: the extended layout surface includes a second extended layout surface, which is located on the outer surface of the connector body next to the notch of the slot.

[0047] Based on the fifth aspect, or the first implementation of the fifth aspect, the embodiment of the present application also provides a fourth implementation of the fifth aspect: the basic layout surface is formed by protruding from the connector body into the groove, and the basic layout surface located on one side is separated by a partition recess to form a plurality of layout surfaces; the extended layout surface also includes a second extended layout surface, and the second extended layout surface is located on the side wall surface of the partition recess.

[0048] In practical applications, the second extended arrangement surface may be located on a plurality of sequentially adjacent side wall surfaces of the partition recess. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application;

[0050] Figure 2 A schematic diagram of the plug-in / plug-out relationship between a plug-in / plug-out device and a connector provided in an embodiment of the present application;

[0051] Figure 3 for Figure 2 The overall structural diagram of the plug-in device shown in FIG.

[0052] Figure 4 for Figure 3 A front view of the plug-in device shown in ;

[0053] Figure 5 for Figure 4 AA section view;

[0054] Figure 6 A schematic diagram of the arrangement relationship of the gold finger pins of a connector provided in an embodiment of the present application;

[0055] Figure 7 A schematic diagram of the plug-in / plug-out relationship between another plug-in / plug-out device and a connector provided in an embodiment of the present application;

[0056] Figure 8 for Figure 7 The overall structural diagram of the plug-in device shown in FIG.

[0057] Fig. 9 for Figure 8 A front view of the plug-in device shown in ;

[0058] Fig.10 for Fig. 9 BB cross-sectional view;

[0059] Fig.11 A schematic diagram of the arrangement relationship of gold finger pins of another connector provided in an embodiment of the present application;

[0060] Fig.12 A schematic diagram of the overall structure of another plug-in device provided in an embodiment of the present application;

[0061] Fig.13 for Fig.12 C-direction view;

[0062] Fig.14 A schematic diagram of the arrangement relationship of gold finger pins of another connector provided in an embodiment of the present application;

[0063] Fig.15 A schematic diagram of the overall structure of another plug-in device provided in an embodiment of the present application;

[0064] Fig.16 for Fig.15 D-direction view;

[0065] Fig.17 A schematic diagram of the arrangement relationship of gold finger pins of another connector provided in an embodiment of the present application. DETAILED DESCRIPTION

[0066] The embodiment of the present application provides a device plug-in structure, which can effectively increase the number of pin arrangements per unit area of ​​the connector through structural optimization, and can increase signal transmission channels without changing the format size of the gold finger pins that can be arranged.

[0067] See also Figure 1 , which is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application.

[0068] like Figure 1 As shown, the electronic device includes a housing 100, a mainboard 200 and a plug-in device 300 disposed in the housing 100, and a connector 400 is disposed on the mainboard 200; the plug-in device 300 is plugged with the connector 400 on the mainboard 200 through the gold finger pins (not shown in the figure) of its plug-in part, so that the plug-in device 300 is electrically connected to the mainboard 200 to achieve corresponding signal transmission. Here, the mainboard 200 is equivalent to a second device electrically connected to the connector 400.

[0069] In a specific implementation, the electronic device may be a server, a computer or a high-performance computing cluster, for a high-power, highly integrated, ultra-large-scale data center server; in addition, the electronic device may also be a switch or a router, etc., which is not limited in the embodiments of the present application.

[0070] For the connection between the plug-in device 300 and the connector 400, a typical plug-in structure is that the gold finger pins are arranged on both sides of the plug-in part of the plug-in device 300, which is an interface form arranged in a two-dimensional plane. The corresponding gold finger pins on the connector side are also arranged in a two-dimensional plane. The number of signal channels arranged per unit area of ​​the product is limited. The "unit area" here refers to the unit area of ​​the width of the gold finger pins on the plug-in part.

[0071] When designing the product dimensions of different plug-in devices, on the one hand, the dimensions of the plug-in structure cannot be effectively increased due to the limitations of available space in the application scenario; on the other hand, with the continuous improvement of product performance design, it is necessary to increase signal transmission channels to meet functional requirements.

[0072] Based on this, the embodiment of the present application provides a plug-in device, which includes a plug-in portion, the plug-in portion includes basic layout surfaces located on both sides thereof, and each basic layout surface is provided with gold finger pins arranged at intervals; the plug-in portion also includes an extended layout surface, and the extended layout surface is also provided with gold finger pins arranged at intervals. With such a configuration, within the same layout width, this solution can effectively increase the number of gold finger pins, thereby accommodating more signal addresses, and providing technical guarantee for increasing the number of I / O (input / output, input interface / output interface) of the product.

[0073] In order to better understand the technical solution and technical effects of the present application, without losing generality, the specific embodiments will be described in detail below in conjunction with the accompanying drawings. Figure 2 and Figure 3 ,in, Figure 2 A schematic diagram of the plug-in / plug-out relationship between a plug-in device and a connector provided in an embodiment of the present application. Figure 3 for Figure 2 The overall structural diagram of the plug-in device is shown in FIG.

[0074] like Figure 2 As shown, the plug-in portion 1 on the plug-in device 300 side is pluggable and compatible with the slot 2 on the connector 400 side, and the plug-in portion 1 is electrically connected to the pins in the slot 2 through the gold finger pins on the plug-in side.

[0075] The connection side of the plug-in portion 1 is connected to the device body 301 of the plug-in device 300 and is arranged at the edge of the device body 301. Figure 3 , Figure 4 and Figure 5 ,in, Figure 4 for Figure 3 The front view of the plug-in device 300 shown in FIG. Figure 5 for Figure 4 Here, the layout of the gold finger pins is Figure 4 The length dimension L is defined together with the width dimension W.

[0076] In this embodiment, the plug-in portion 1 includes two basic layout surfaces S1 and one extended layout surface S2, both of which are used to arrange gold finger pins.

[0077] The two basic arrangement surfaces S1 are respectively located on two side surfaces of the plug-in portion 1 , and first pins 11 are arranged at intervals on the basic arrangement surface S1 on one side, and second pins 12 are arranged at intervals on the basic arrangement surface S1 on the other side.

[0078] The extended arrangement surface S2 is located at the plug-in side end surface of the plug-in portion 1, that is, the surface where the plug-in portion 1 matches the bottom of the slot 2, and the third pins 13 are arranged at intervals on the extended arrangement surface S2.

[0079] Taking the arrangement of gold finger pins only on the surfaces of both sides of the plug-in portion as a comparative example, within the same layout width, the number of signal pins in this embodiment is 1.5 times that of the comparative example based on the third pins 13 arranged at intervals on the extended layout surface S2.

[0080] In a specific implementation, the number and spacing of the signal pins on the two basic layout planes S1 may be the same or different, and may be arranged in an aligned or staggered manner; similarly, the number and spacing of the signal pins on the extended layout plane S2 may be the same or different from the number and spacing of the signal pins on the basic layout plane S1. This embodiment of the present application is not limited thereto.

[0081] and Figure 3 Correspondingly, in this embodiment, the gold finger pins of the slot 2 on the connector 400 side are arranged on the slot walls and the bottom surface of the slot 2. Please also refer to Figure 2 and Figure 6 ,in, Figure 6 A schematic diagram of the arrangement relationship of gold finger pins of a connector provided in an embodiment of the present application.

[0082] like Figure 6 As shown, a slot 2 is provided on a connector body 401 of the connector 400 , and the slot 2 includes two basic layout surfaces T1 and one extended layout surface T2 .

[0083] Among them, the two basic layout surfaces T1 are located on the two side walls of the slot 2, and are respectively set corresponding to the two basic layout surfaces S1 on the plug-in device 300 side, and the pins on the basic layout surface T1 are arranged one-to-one with the gold finger pins on the corresponding basic layout surface S1; the extended layout surface T2 is located on the bottom surface of the slot 2, and is set corresponding to the extended layout surface S2 on the plug-in device 300 side, and the pins on the extended layout surface T2 are arranged one-to-one with the gold finger pins on the extended layout surface S2. In other words, the slot equivalent to the connector 400 corresponding to the plug-in part 1 also has pins for signal transmission added at the bottom.

[0084] In general, the shape of the slot 2 on the connector 400 side is compatible with the plug-in part 1 on the plug-in device 300 side, and the layout of the gold finger pins arranged on both is consistent. The "gold finger pin layout" here refers to the ability to achieve electrical connection between the gold finger pins on the plug-in part 1 and the pins in the slot 2, which may include the position and spacing of the gold finger pins, and may also include the size and number of the gold finger pins.

[0085] In addition, the definition of each signal pin includes, but is not limited to: power supply, ground pin, control signal, clock signal, address signal, data signal, etc., which can be determined according to the overall design in different scenarios. The embodiments of the present application are not limited thereto.

[0086] See also Figure 7 and Figure 8 ,in, Figure 7 A schematic diagram of another plug-in / plug-out relationship between a plug-in device and a connector provided in an embodiment of the present application. Figure 8 for Figure 7 In order to clearly illustrate the overall structure of the plug-in device. Figure 2 The differences and connections between the described embodiments, and the configurations and structures with the same functions are indicated in the figures with the same symbols.

[0087] like Figure 7 As shown, the plug-in portion 1 a on the plug-in device 300 a side is plug-fitted with the slot 2 a on the connector 400 a side.

[0088] The two side surfaces of the plug-in portion 1a are respectively concave to form a basic arrangement surface S1a, that is, the two side surfaces are concave toward each other from the device body 301; the first pins 11a are arranged at intervals on the basic arrangement surface S1a on one side, and the second pins 12a are arranged at intervals on the basic arrangement surface S1a on the other side.

[0089] like Figure 8 As shown, the plug-in portion 1a in this embodiment includes a first extended arrangement surface S21a and two second extended arrangement surfaces S22a.

[0090] The first extended arrangement surface S21a is located at the bottom surface of the plug-in portion 1a, ie, the surface where the plug-in portion 1a matches the bottom of the slot 2a. The third pins 13a are arranged at intervals on the first extended arrangement surface S21a.

[0091] The two second extended layout surfaces S22a are respectively located at the roots of the concave side surfaces of the plug-in portion 1a, that is, the step surfaces extending from the concave side surfaces in opposite directions, and the step surface is provided at the junction of the plug-in portion 1a and the device body 301, and the step surface is arranged to intersect with the basic layout surface S1a. Fig. 9 and Fig.10 ,in, Fig. 9 for Figure 8 The main view of the plug-in device shown in Fig.10 for Fig. 9 BB cross-sectional view.

[0092] The fourth pins 14 a are arranged at intervals on the second extended arrangement surface S22 a on one side, and the fifth pins 15 a are arranged at intervals on the second extended arrangement surface S22 a on the other side.

[0093] Similarly, taking the arrangement of gold finger pins only on the surfaces of both sides of the plug-in portion as a comparative example, within the same layout width, this embodiment is based on the third pins 13a arranged at intervals on the first extended layout surface S21a, and the fourth pins 14a and the fifth pins 15a arranged at intervals on the two second extended layout surfaces S22a, and the number of signal pins is 2.5 times that of the comparative example.

[0094] In a specific implementation, the number and spacing of the signal pins on the two second extended layout surfaces S22a may be the same or different, and may be arranged in an aligned or staggered manner; similarly, the number and spacing of the signal pins on the first extended layout surface S21a and the two second extended layout surfaces S22a may be the same or different from the number and spacing of the signal pins on the basic layout surface S1a. This embodiment of the present application is not limited.

[0095] Optionally, in order to improve the overall bearing strength of the plug-in portion 1a, reinforcement portions 101a may be provided at both ends of the plug-in portion 1a, and the reinforcement portions 101a are arranged to intersect with the plug-in portion 1a. Figure 8 As shown, the two reinforcement parts 101a are strip-shaped structures extending along the thickness direction of the plug part 1a, and are in an I-shape as a whole. When plugging and unplugging, the reinforcement parts 3a at both ends of the plug part 1a can act as reinforcement ribs to effectively avoid eccentric load insertion loss.

[0096] In other possible implementations, the reinforcement portion may be disposed at only one end of the plug-in portion 1a, which can also improve the bearing strength, and is not limited to being disposed at both ends of the plug-in portion as shown in the figure.

[0097] In a specific implementation, the concave two side surfaces and the reinforcement part can be formed by removing materials on both sides of the device circuit board substrate. In other specific implementations, other processes can also be used for forming, such as integral forming. This application embodiment is not limited.

[0098] and Figure 8 Corresponding to the plug-in device shown in the embodiment, the shape of the slot 2a on the connector 400a side is pluggable and compatible with the plug-in portion 1a on the plug-in device 300a side, and the layout of the gold finger pins arranged on the two is consistent. Please refer to Figure 7 and Fig.11 ,in, Fig.11 A schematic diagram of the arrangement relationship of gold finger pins of another connector provided in an embodiment of the present application.

[0099] like Fig.11As shown, the slot 2a is also in an I-shaped shape, and includes a straight slot section 21a and avoidance grooves 22a located at both ends of the straight slot section 21a. Here, the straight slot section 21a is adapted to the plug-in portion 1a on the plug-in device 300a side, and the avoidance groove 22a is adapted to the reinforcement portion 101a on the plug-in device 300a side. The slot 2a includes two basic layout surfaces T1a, a first extended layout surface T21a, and two second extended layout surfaces T22a.

[0100] Among them, the two basic layout surfaces T1a are located on the groove walls on both sides of the slot 2a, and are respectively set corresponding to the two basic layout surfaces S1a on the plug-in device 300a side, and the pins on the basic layout surface T1a are arranged in a one-to-one correspondence with the gold finger pins on the corresponding basic layout surface S1a; wherein the first extended layout surface T21a is located at the bottom surface of the slot of the slot 2a, and is set corresponding to the first extended layout surface S21a on the plug-in device 300a side, and the pins on the first extended layout surface T21a are arranged in a one-to-one correspondence with the gold finger pins on the first extended layout surface S21a; wherein the two second extended layout surfaces T22a are respectively located on the outer surface of the connector body 401a beside the notch of the slot 2a, and are respectively set corresponding to the two second extended layout surfaces S22a on the plug-in device 300a side, and the pins on the second extended layout surface T22a are arranged in a one-to-one correspondence with the gold finger pins on the corresponding second extended layout surface S22a.

[0101] Among them, corresponding to the two basic layout surfaces S1a, pins are arranged at intervals on the groove walls on both sides of the slot 2a, and are respectively arranged in one-to-one correspondence with each first pin 11a and each second pin 12a; corresponding to the first extended layout surface S21a, pins are arranged at intervals on the bottom surface of the slot 2a, and are respectively arranged in one-to-one correspondence with each third pin 13a; corresponding to the second extended layout surface S22a, pins are arranged at intervals on the top surface of the connector 400a on both sides of the slot opening of the slot 2a, and are respectively arranged in one-to-one correspondence with each fourth pin 14a and each fifth pin 15a.

[0102] In addition, in other possible implementations, the basic layout surfaces on both sides of the plug-in part can also be designed in this way, where the basic layout surface on one side is located on the side surface of the plug-in part, and the basic layout surface on the other side is formed by being concave from the two side surfaces of the device body (not shown in the figure).

[0103] In addition, for the implementation scheme in which the two side surfaces of the device body 301 on the plug-in device 300a side are recessed to form the basic layout surface S1a, according to different product design requirements, the second extended layout surface S22a can be arranged only on the step surface on one side; accordingly, the connector 400a side only arranges the second extended layout surface T22a on one side of the notch of the slot 2a.

[0104] See also Fig.12and Fig.13 ,in, Fig.12 This is a schematic diagram of the overall structure of another plug-in device provided in an embodiment of the present application. Fig.13 for Fig.12 In order to clearly illustrate the present embodiment and Figure 2 and Figure 7 Here, in order to clearly illustrate the specific structural forms of the basic layout surface and the provided extended layout surface, the figure only illustrates the local structure of the gold finger pin layout direction of the plug-in device 300b.

[0105] like Fig.12 and Fig.13 As shown, the two side surfaces of the plug-in portion 1b of the plug-in device 300b are respectively spaced and concave to form basic arrangement surfaces S1b, that is, the basic arrangement surfaces S1b are formed by the concave surfaces of the two side surfaces of the device body 301, and the basic arrangement surfaces S1b on each side are multiple arrangement surfaces separated by partitions 102b, and multiple square tooth-shaped partitions 102b are spaced on both sides of the plug-in portion 1b.

[0106] The first pins 11b are arranged at intervals on the basic arrangement surface S1b located at one side of the plug-in portion 1b, and the second pins 12b are arranged at intervals on the basic arrangement surface S1b located at the other side of the plug-in portion 1b.

[0107] The plug-in portion 1b in this embodiment includes a first extended layout surface S21b, a second extended layout surface S22b and a third extended layout surface S23b.

[0108] The first extended layout surface S21b is located at the bottom surface of the plug-in portion 1b, and the third pins 13b are arranged at intervals on the first extended layout surface S21b. As shown in the figure, the third pins 13b are arranged opposite to the partitions 102b on both sides. In other specific implementations, the third pins 13b can also be arranged opposite to the recessed portion between the partitions 102b (not shown in the figure), which can be determined according to the overall design requirements of the product, and is not limited in the embodiment of the present application.

[0109] The second extended layout surface S22b and the third extended layout surface S23b are respectively located on the surface of the partition portion 102b.

[0110] The second extended arrangement surface S22 a is located on the outer surface of the square tooth-shaped partition 102 b , and the fourth pin 14 b is disposed on the second extended arrangement surface S22 a .

[0111] The third extended arrangement surface S23b is located on both side surfaces of the square toothed partition 102b. The fifth pin 15b is arranged on the third extended arrangement surface S23b on one side of the partition 102b, and the sixth pin 16b is arranged on the third extended arrangement surface S23b on the other side of the partition 102b.

[0112] Based on the addition of the extended layout surface, under the same format size, the number of pins on the plug-in portion 1b provided in this embodiment is also effectively increased.

[0113] and Fig.12 Corresponding to the plug-in device shown in , in this embodiment, the shape of the slot 2b of the connector 400b is pluggable and compatible with the plug-in portion 1b on the plug-in device 300b side, and the layout of the gold finger pins arranged on the two is consistent. Please refer to Fig.13 and Fig.14 ,in, Fig.14 A schematic diagram of the arrangement relationship of gold finger pins of another connector provided in an embodiment of the present application.

[0114] like Fig.14 As shown, the slot 2b of the connector 400b includes basic layout surfaces T1b located on both sides, and the extended layout surfaces in the slot 2b include a first extended layout surface T21b and a second extended layout surface T21b.

[0115] The basic layout surface T1b is formed by protruding from the connector body 401b into the groove. The basic layout surface T1b on one side is divided by the partition recess 402b to form multiple layout surfaces. The basic layout surface T1b is respectively set corresponding to the basic layout surface S1b on the plug-in device 300b side; here, the partition recess 402b is a square that matches the square tooth-shaped partition 102b on the plug-in device 300b side. The first extended layout surface T21b is located at the bottom surface of the slot 2b, corresponding to the first extended layout surface S21b on the plug-in device 300b side, and the pins on the first extended layout surface T21b are arranged one by one with the gold finger pins on the first extended layout surface S21b; the second extended layout surface T22b is respectively located at three adjacent side walls of the partition recess 402b, corresponding to the second extended layout surface S22b and the third extended layout surface S23b on the plug-in device 300b side.

[0116] It is understandable that the pin layouts on the basic layout surface T1b and the second extended layout surface T22b are respectively arranged corresponding to the gold finger pin layouts on the corresponding layout surface of the plug-in device 300b. Specifically, the number and arrangement relationship of each pin can be determined as needed, and can be implemented by ordinary technicians in this field, so it will not be repeated.

[0117] In other possible implementations, according to different product design requirements, the third extended arrangement surface S23b may be arranged only on one side surface of the square tooth-shaped partition 102b.

[0118] See also Fig.14 and Fig.15 ,in, Fig.14 This is a schematic diagram of the overall structure of another plug-in device provided in an embodiment of the present application. Fig.15 for Fig.14 In order to clearly illustrate the present embodiment and Figure 2 , Figure 7 , Fig.12 Here, in order to clearly illustrate the specific structural forms of the basic layout surface and the provided extended layout surface, the figure only illustrates the local structure of the gold finger pin layout direction of the plug-in device 300c.

[0119] like Fig.14 and Fig.15 As shown, the two side surfaces of the plug-in portion 1c of the plug-in device 300c are respectively spaced and concave to form basic arrangement surfaces S1c, that is, the basic arrangement surfaces S1c are formed by the concave surfaces of the two side surfaces of the device body 301, and the basic arrangement surfaces S1c on each side are multiple arrangement surfaces separated by partitions 102c, and multiple "convex"-shaped partitions 102c are spaced on both sides of the plug-in portion 1c.

[0120] The first pins 11 c are arranged at intervals on the basic arrangement surface S1 c located on one side of the plug-in portion 1 c , and the second pins 12 c are arranged at intervals on the basic arrangement surface S1 c located on the other side of the plug-in portion 1 c .

[0121] The plug-in portion 1c in this embodiment includes a first extended layout surface S21c, a second extended layout surface S22c, a third extended layout surface S23c, a fourth extended layout surface S24c and a fifth extended layout surface S25c.

[0122] The first extended layout surface S21c is located at the bottom surface of the plug-in portion 1c, and the third pins 13c are arranged at intervals on the first extended layout surface S21c. As shown in the figure, the third pins 13c are arranged opposite to the partitions 102c on both sides. In other specific implementations, the third pins 13c can also be arranged opposite to the recessed portion between the partitions 102c (not shown in the figure), which can be determined according to the overall design requirements of the product, and is not limited in the embodiment of the present application.

[0123] The second extended layout surface S22c, the third extended layout surface S23c, the fourth extended layout surface S24c, and the fifth extended layout surface S25c are respectively located on the surfaces of the “convex” shaped partition portion 102c.

[0124] The second extended layout surface S22c is located on the outer surface of the convex-shaped partition 102c, and the fourth pin 14c is disposed on the second extended layout surface S22c.

[0125] The third extended layout surface S23c is located on both side surfaces of the top structure of the "convex"-shaped partition 102c, and the fifth pin portion 15c is arranged on the third extended layout surface S23c on one side of the partition 102c, and the sixth pin portion 15c is arranged on the third extended layout surface S23c on the other side of the partition 102c.

[0126] The fourth extended layout surface S24c is located on the step surfaces on both sides of the "convex"-shaped partition 102c. The seventh pin portion 17c is arranged on the fourth extended layout surface S24c on one side of the partition 102c, and the eighth pin portion 18c is arranged on the fourth extended layout surface S24c on the other side of the partition 102c.

[0127] The fifth extended layout surface S25c is located on both side surfaces of the underlying structure of the "convex"-shaped partition 102c. The ninth pin portion 19c is arranged on the fifth extended layout surface S25c located on one side of the partition 102c, and the tenth pin portion 110c is arranged on the fifth extended layout surface S25c located on the other side of the partition 102c.

[0128] Based on the addition of the extended layout surface, under the same format size, the number of pins on the plug-in portion 1c provided in this embodiment is also effectively increased.

[0129] In other possible implementations, according to different product design requirements, the third extended layout surface S23c, the fourth extended layout surface S24c and the fifth extended layout surface S25c may be arranged only on one side surface of the convex partition 102c.

[0130] and Fig.15 Corresponding to the plug-in device shown in , in this embodiment, the shape of the slot 2c of the connector 400c is pluggable and compatible with the plug-in portion 1c on the plug-in device 300c side, and the layout of the gold finger pins arranged on the two is consistent. Please refer to Fig.16 and Fig.17 ,in, Fig.17 A schematic diagram of the arrangement relationship of gold finger pins of another connector provided in an embodiment of the present application.

[0131] like Fig.17 As shown, the slot 2c of the connector 400c includes basic layout surfaces T1c located on both sides, and the extended layout surfaces in the slot 2c include a first extended layout surface T21c and a second extended layout surface T21c.

[0132] The basic layout surface T1c is formed by protruding from the connector body 401c into the groove. The basic layout surface T1c on one side is divided by the partition recess 402c to form multiple layout surfaces. The basic layout surface T1c is respectively set corresponding to the basic layout surface S1c on the plug-in device 300c side; here, the partition recess 402c is a shape that matches the "convex"-shaped partition 102c on the plug-in device 300b side. The first extended layout surface T21c is located on the bottom surface of the slot 2b and is set corresponding to the first extended layout surface S21c on the plug-in device 300c side. The pins on the first extended layout surface T21c are arranged one by one with the gold finger pins on the first extended layout surface S21c; the second extended layout surface T22c is respectively located on five adjacent side walls of the partition recess 402c and is set corresponding to the second extended layout surface S22c, the third extended layout surface S23c, the fourth extended layout surface S24c, and the fifth extended layout surface S25c on the plug-in device 300c side.

[0133] It is understandable that the pin layouts on the basic layout surface T1c and the second extended layout surface T22c are respectively arranged corresponding to the gold finger pin layouts on the corresponding layout surface of the plug-in device 300c. Specifically, the number and arrangement relationship of each pin can be determined as needed, and can be implemented by ordinary technicians in this field, so it is not repeated here.

[0134] The implementation scheme of multi-sided pin arrangement of the plug-in device described in the aforementioned embodiments can be widely applied to different plug-in devices that require more complex functions, higher data transmission rates or greater interface density, such as but not limited to board-type devices. In a specific implementation, the gold finger pins on the plug-in device can be realized through manufacturing processes such as grooving and plating during board-level manufacturing.

[0135] For board-type devices, the device body is a single board, on which a chip is arranged, and the chip is electrically connected to the gold finger pins of the plug-in part to realize data signal and / or transmission, and to supply power to the chip on the single board.

[0136] For board-type devices that use the aforementioned multi-sided pin arrangement, in actual applications, in storage product architecture scenarios, they can also be used to connect memory sticks and adapter connectors, and the above technical advantages are particularly significant.

[0137] In other possible specific implementations, the board-type device may be a solid state drive (SSD), and the chips provided on the SSD board include, but are not limited to, flash memory chips and controller chips. In addition, the board-type device may also be a flash memory module (Flash Dual Inline Memory Module, Flash DIMM), a graphics card (GPU), or a high-speed network interface card.

[0138] Of course, the gold finger pin definition method described in the above embodiments can be selected according to the actual needs of different application scenarios, which will not be described in detail here.

[0139] Based on the plug-in device and connector described in the foregoing embodiments, the embodiments of the present application further provide a signal transmission method.

[0140] A signal transmission method is applied to a plug-in device, which can be as described above. Figure 3 , Figure 7 , Fig.12 and Fig.15 The plug-in device described in the invention, the signal transmission method comprises the following steps:

[0141] Data signals are transmitted through the gold finger pins on the basic layout surface and the extended layout surface of the plug-in device, or control signals are transmitted through the gold finger pins on the basic layout surface and the extended layout surface of the plug-in device.

[0142] Another signal transmission method is applied to a connector, which can be as described above. Figure 6 , Fig.11 , Fig.14 and Fig.17 The connector described in the figure, the signal transmission method comprises the following steps:

[0143] Data signals are transmitted through pins on the basic layout surface and the extended layout surface of the connector, or control signals are transmitted through pins on the basic layout surface and the extended layout surface of the connector.

[0144] It should be noted that the directional words "bottom", "end" and "side" used in this article are defined based on the state of the plug-in device shown in the figure. The board assembled and applied in the actual scene is not limited to the state shown in the figure. For example, in the use state, the motherboard of the electronic device extends vertically, or the extension direction of the motherboard of the electronic device forms a certain angle with the vertical. It should be understood that the use of the above directional words does not constitute a substantial limitation on the board described in this application.

[0145] In addition, the ordinal numbers "first", "second", "third" and "fourth" used in this document are only used to describe the same functional components or structures in the technical solution. It is understood that the use of the above ordinal numbers does not constitute an understanding of the technical solution for protection of this application.

[0146] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A plug-in device, adapted to be compatible with a connector, characterized in that: The plug-in device comprises a device body and a plug-in portion, wherein the plug-in portion is arranged along the edge of the device body; The plug-in portion includes basic layout surfaces located on both sides thereof, and the plug-in portion also includes an extended layout surface; Gold finger pins are arranged on the basic layout surface and the extended layout surface.

2. The plug-in device according to claim 1, characterized in that: The extended layout surface comprises a first extended layout surface, and the first extended layout surface is located at the plug-in side end surface of the plug-in portion.

3. The plug-in device according to claim 1 or 2, characterized in that: The basic arrangement surface is located on both side surfaces of the plug-in portion.

4. The plug-in device according to claim 1 or 2, characterized in that: The basic arrangement surface is formed by being concavely formed from both side surfaces of the device body.

5. The plug-in device according to claim 4, characterized in that: A step surface is provided at the junction of the plug-in portion and the device body, and the step surface is arranged to intersect with the basic layout surface; the extended layout surface also includes a second extended layout surface, and the second extended layout surface is located on the step surface.

6. The plug-in device according to claim 5, characterized in that: There are two step surfaces, and the two step surfaces are arranged opposite to each other at two sides of the connection between the plug-in portion and the device body.

7. The plug-in device according to any one of claims 4 to 6, characterized in that: A reinforcement portion is arranged at the end of the plug-in portion, and the reinforcement portion is arranged to intersect with the plug-in portion.

8. The plug-in device according to claim 1 or 2, characterized in that: The basic arrangement surface is formed by being concave from both side surfaces of the device body, and the basic arrangement surface on one side is divided into a plurality of arrangement surfaces by a partition; the extended arrangement surface also includes a second extended arrangement surface, and the second extended arrangement surface is located on the outer surface of the partition.

9. The plug-in device according to claim 8, characterized in that: The partition part is in the shape of square teeth protruding from both sides of the plug-in part, and the extended layout surface further includes a third extended layout surface, which is located on the side surface of the square tooth-shaped plug-in part.

10. The plug-in device according to claim 9, characterized in that: The third extended arrangement surface is located on both side surfaces of the square tooth-shaped plug-in portion.

11. The plug-in device according to claim 8, characterized in that: The partition is in the shape of a "convex" character protruding from both sides of the plug-in portion, and the extended layout surface also includes a third extended layout surface, a fourth extended layout surface and a fifth extended layout surface, the third extended layout surface is located on the side surface of the top structure of the "convex" character partition, the fourth extended layout surface is located on the step surface of the "convex" character partition, and the fifth extended layout surface is located on the side surface of the bottom structure of the "convex" character partition.

12. The plug-in device according to claim 11, characterized in that: The third extended layout surface is located on both side surfaces of the top structure of the "convex" shaped partition, the fourth extended layout surface is located on both side step surfaces of the "convex" shaped partition, and the fifth extended layout surface is located on both side surfaces of the bottom structure of the "convex" shaped partition.

13. The plug-in device according to any one of claims 1 to 11, characterized in that: The device body is a single board, a chip is arranged on the single board, and the chip is electrically connected to the gold finger pins of the plug-in part.

14. A connector, adapted to be compatible with a plug-in device, characterized in that: The connector comprises a slot provided on the connector body, the slot comprises basic arrangement surfaces on both sides thereof, and the slot also comprises an extended arrangement surface; pins are arranged on both the basic arrangement surface and the extended arrangement surface.

15. The connector according to claim 14, characterized in that: The extended arrangement surface comprises a first extended arrangement surface, and the first extended arrangement surface is located at a bottom surface of the slot.

16. The connector according to claim 14 or 15, characterized in that: The basic arrangement surface is located on the two side walls of the slot.

17. The connector according to any one of claims 14 to 16, characterized in that: The extended arrangement surface includes a second extended arrangement surface, and the second extended arrangement surface is located on the outer surface of the connector body beside the notch of the slot.

18. The connector according to claim 17, characterized in that: The second extended arrangement surface is located on the outer surface of the connector body at both sides of the notch of the slot.

19. The connector according to claim 14 or 15, characterized in that: The basic layout surface is formed by protruding from the connector body into the groove, and the basic layout surface located on one side is divided into multiple layout surfaces by a partition recess; the extended layout surface also includes a second extended layout surface, and the second extended layout surface is located on the side wall surface of the partition recess.

20. The connector according to claim 19, characterized in that The second extended layout surface is located on a plurality of sequentially adjacent side wall surfaces of the partition recess.

21. An electronic device, characterized in that: It comprises a connector and a second device, wherein the connector is electrically connected to the second device; the connector is the connector described in any one of claims 14 to 20.

22. The electronic device according to claim 21, characterized in that: The electronic device further comprises a plug-in device, a gold finger pin of the plug-in device is electrically connected to a pin of the connector, and the plug-in device is the plug-in device according to any one of claims 1 to 13.

23. A signal transmission method, characterized in that: The signal transmission method is applied to a plug-in device, wherein the plug-in device comprises a device body and a plug-in portion, wherein the plug-in portion is arranged along the edge of the device body; the plug-in portion comprises basic layout surfaces located on both sides thereof, and the plug-in portion further comprises an extended layout surface; both the basic layout surface and the extended layout surface are arranged with gold finger pins; the method comprises the following steps: A data signal is transmitted through the gold finger pin, or a control signal is transmitted through the gold finger pin.

24. The signal transmission method according to claim 23, characterized in that: The extended layout surface comprises a first extended layout surface, and the first extended layout surface is located at the plug-in side end surface of the plug-in portion.

25. The signal transmission method according to claim 23 or 24, characterized in that: The basic arrangement surface is located on both side surfaces of the plug-in portion.

26. The signal transmission method according to claim 23 or 24, characterized in that: The basic arrangement surface is formed by being concavely formed from both side surfaces of the device body.

27. The signal transmission method according to claim 26, characterized in that: A step surface is provided at the junction of the plug-in portion and the device body, and the step surface is arranged to intersect with the basic layout surface; the extended layout surface also includes a second extended layout surface, and the second extended layout surface is located on the step surface.

28. The signal transmission method according to claim 23 or 24, characterized in that: The basic arrangement surface is formed by being concave from both side surfaces of the device body, and the basic arrangement surface on one side is divided into a plurality of arrangement surfaces by a partition; the extended arrangement surface also includes a second extended arrangement surface, and the second extended arrangement surface is located on the outer surface of the partition.

29. The signal transmission method according to any one of claims 23 to 28, characterized in that: The device body is a single board, a chip is arranged on the single board, and the chip is electrically connected to the gold finger pins of the plug-in part.

30. A signal transmission method, characterized in that: The signal transmission method is applied to a connector, wherein the connector comprises a slot provided on a connector body, the slot comprises basic layout surfaces on both sides thereof, and the slot further comprises an extended layout surface; pins are arranged on both the basic layout surface and the extended layout surface; the method comprises the following steps: A data signal is transmitted through the pin, or a control signal is transmitted through the pin.

31. The signal transmission method according to claim 30, characterized in that: The extended arrangement surface comprises a first extended arrangement surface, and the first extended arrangement surface is located at a bottom surface of the slot.

32. The signal transmission method according to claim 30 or 31, characterized in that: The basic arrangement surface is located on the two side walls of the slot.

33. The signal transmission method according to any one of claims 30 to 32, characterized in that: The extended arrangement surface includes a second extended arrangement surface, and the second extended arrangement surface is located on the outer surface of the connector body beside the notch of the slot.

34. The signal transmission method according to claim 30 or 31, characterized in that: The basic layout surface is formed by protruding from the connector body into the groove, and the basic layout surface located on one side is divided into multiple layout surfaces by a partition recess; the extended layout surface also includes a second extended layout surface, and the second extended layout surface is located on the side wall surface of the partition recess.

35. The signal transmission method according to claim 34, characterized in that: The second extended layout surface is located on a plurality of sequentially adjacent side wall surfaces of the partition recess.

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