Electrical connector assembly and power supply system

Abstract

The invention discloses an electric connector assembly and a power supply system. The electrical connector assembly includes an adapter connector mounted on a circuit board. The adapter connector comprises a first insulating shell, an adapter socket and a plurality of first power supply terminals. The first insulating shell comprises a first side face and a second side face which are arranged in different directions. The first side has a first notch. The adapter socket is arranged on the second side surface. Each first power supply terminal comprises at least one first elastic arm and a first connecting arm. The plurality of first elastic arms are arranged in the first notch, so that an input interface is formed in the first notch, and an electronic card for providing a power supply and a signal is inserted into the input interface; the plurality of first connecting arms are arranged in the adapter socket, so that the adapter socket forms a power supply output interface. The plurality of first power terminals are not physically connected to the circuit board. Therefore, a power supply and a signal provided by the electronic card are shunted to different paths, and the power supply is transmitted through the butted wire end connectors, so that the circuit board is prevented from being overheated due to overlarge current flowing through the circuit board.

Description

Technical Field

[0001] The present invention relates to an electrical connector assembly and a power supply system, and more particularly to an electrical connector assembly and a power supply system capable of shunting power and signals. Background Art

[0002] Electrical connectors are generally used to transmit power and signals. Taking a board - end connector as an example, the board - end connector is connected to a circuit board, and power and signals are transmitted to the circuit board via the board - end connector and then to other components within the system (such as a server cabinet, a host, etc.) by the circuit board. However, the area and thickness of the conductive metal layer (such as copper) laid on the surface of the circuit board are limited, so the impedance is too high, and it is easy to cause the circuit board to overheat when transmitting a large current.

[0003] Therefore, how to overcome the above - mentioned defects through the improvement of structural design has become one of the important issues to be solved in this field. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an electrical connector assembly and a power supply system capable of shunting power and signals in view of the deficiencies of the prior art, so as to solve the technical problem that the circuit board will overheat due to too high impedance of the circuit board when the current passes through it.

[0005] To solve the above - mentioned technical problem, one of the technical solutions adopted by the present invention is to provide an electrical connector assembly, which includes an adapter connector mounted on a circuit board. The adapter connector includes a first insulating housing, an adapter socket, and a plurality of first power terminals. The first insulating housing includes a first side surface and a second side surface configured in different orientations. The first side surface has a first notch. The adapter socket is disposed on the second side surface. Each first power terminal includes at least one first elastic arm and a first connecting arm. A plurality of first elastic arms are disposed in the first notch, so that the first notch forms an input interface for inserting an electronic card for providing power and signals. A plurality of first connecting arms are disposed in the adapter socket, so that the adapter socket forms a power output interface. The plurality of first power terminals are not physically connected to the circuit board.

[0006] To solve the above technical problems, another technical solution adopted by the present invention is to provide a power supply system, which includes an adapter connector, a docking connector, and a circuit board. The docking connector is adapted to the adapter connector and is detachably plugged into the adapter socket. The adapter connector includes a first insulating housing, an adapter socket, and a plurality of first power terminals. The first insulating housing includes a first side surface and a second side surface arranged in different orientations. The first side surface has a first notch. The adapter socket is disposed on the second side surface. Each first power terminal includes at least one first elastic arm and a first connecting arm. A plurality of first elastic arms are disposed in the first notch, so that the first notch forms an input interface for inserting an electronic card for providing power, and a plurality of first connecting arms are disposed in the adapter socket, so that the adapter socket forms a power output interface. The docking connector includes a second insulating housing, a plurality of second power terminals, and a plurality of power leads. The plurality of power leads are electrically connected to the circuit board, so that when the electronic card is inserted into the input interface, the current of the electronic card passes through the adapter connector and the docking connector and is transmitted to the circuit board.

[0007] One beneficial effect of the present invention is that the electrical connector assembly provided by the present invention can, through the technical solutions of "the first insulating housing includes a first side surface, a second side surface, and a third side surface arranged in different orientations", "a plurality of first elastic arms are disposed in the first notch, so that the first notch forms an input interface", and "a plurality of first connecting arms extend out from the second notch and are disposed in the adapter socket, so that the adapter socket forms a power output interface", make the input interface and the power output interface face different orientations respectively, so as to shunt the power and signals provided by the electronic card to different paths, and transmit the power through a pair of connected wire end connectors, avoiding excessive current flowing through the circuit board and overheating.

[0008] To further understand the features and technical content of the present invention, please refer to the following detailed description and drawings of the present invention. However, the provided drawings are only for reference and illustration, and are not used to limit the present invention. Brief Description of the Drawings

[0009] Figure 1 It is the first schematic diagram of the electrical connector assembly according to the first embodiment of the present invention.

[0010] Figure 2 It is the second schematic diagram of the electrical connector assembly according to the first embodiment of the present invention.

[0011] Figure 3 It is the exploded schematic diagram of the electrical connector assembly according to the first embodiment of the present invention.

[0012] Figure 4 It is the first schematic diagram of the adapter connector according to the first embodiment of the present invention.

[0013] Figure 5The second schematic diagram of the adapter connector according to the first embodiment of the present invention.

[0014] Figure 6 The exploded schematic diagram of the adapter connector and the electronic card according to the first embodiment of the present invention.

[0015] Figure 7 The schematic diagram of the first power terminal according to the first embodiment of the present invention.

[0016] Figure 8 The schematic diagram of the signal terminal according to the first embodiment of the present invention.

[0017] Figure 9 The schematic diagram of the docking connector according to the first embodiment of the present invention.

[0018] Figure 10 The schematic diagram of the second power terminal according to the first embodiment of the present invention.

[0019] Figure 11 For Figure 1 The cross-sectional schematic diagram of the XI-XI section of

[0020] Figure 12 The first schematic diagram of the electrical connector assembly according to the second embodiment of the present invention.

[0021] Figure 13 The partial exploded schematic diagram of the electrical connector assembly according to the second embodiment of the present invention.

[0022] Figure 14 The schematic diagram of the adapter connector and the docking connector of the electrical connector assembly according to the second embodiment of the present invention.

[0023] Figure 15 The schematic diagram of the first power terminal according to the second embodiment of the present invention.

[0024] Figure 16 The schematic diagram of the docking connector according to the second embodiment of the present invention.

[0025] Figure 17 The schematic diagram of the second power terminal according to the second embodiment of the present invention.

[0026] Figure 18 For Figure 12 The cross-sectional schematic diagram of the XVIII-XVIII section of Detailed implementation manners

[0027] The following is to illustrate the implementation manners of the present invention regarding "electrical connector assembly and power supply system" through specific specific embodiments. Those skilled in the art can understand the advantages and effects of the present invention from the content disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of the present invention. Additionally, the drawings of the present invention are only for simple schematic illustration and are not depicted according to actual dimensions. The following implementation manners will further detail the related technical content of the present invention, but the disclosed content is not used to limit the protection scope of the present invention.

[0028] It should be understood that although terms such as "first", "second", "third", etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are mainly used to distinguish one element from another. Additionally, the term "or" used herein should, depending on the actual situation, possibly include any one or a combination of multiple of the associated listed items.

[0029] First Embodiment

[0030] Refer to Figures 1 to 3 As shown, the first embodiment of the present invention provides an electrical connector assembly D, which includes an adapter connector M1 and a mating connector M2. For example, the adapter connector M1 can be a board - end connector, and the mating connector M2 can be a wire - end connector. The adapter connector M1 can be externally inserted into an electronic card B1, and the adapter connector M1 can be disposed on a circuit board B2. Primarily, the electronic card B1 can provide power, or simultaneously contain signals. The power does not pass through the circuit board B2, but is output to other components (not shown in the figure) via the adapter connector M1 and the mating connector M2, while the signals pass through the adapter connector M1 and are transmitted to the circuit board B2.

[0031] Refer to Figures 4 to 6 As shown, the adapter connector M1 includes a first insulating housing 1, an adapter socket 2, and a plurality of first power terminals 3. The mating connector M2 can be detachably plugged into the adapter socket 2. The first insulating housing 1 includes a first side surface 11, a second side surface 13, and a third side surface 12 configured in different orientations. The first side surface 11 has a first notch 110, and the second side surface 13 has a second notch 130 (see Figure 6 ), and the first notch 110 and the second notch 130 communicate with each other. The adapter socket 2 is disposed on the second side surface 13. A plurality of first power terminals 3 are inserted into the first insulating housing 1 through the second notch 130. Additionally, the first insulating housing 1 further includes a plurality of fixing posts 14, and the first insulating housing 1 is fixed by inserting the plurality of fixing posts 14 into the circuit board B2.

[0032] Refer to Figure 6As shown in Figure 7 , a plurality of first power terminals 3 are divided into a plurality of first terminal groups G1. Each first terminal group G1 includes two of the plurality of first power terminals 3 that are disposed opposite to each other, and the two first power terminals 3 can be separated from each other without contact so as to transmit power of the same or different potentials. Further, each first power terminal 3 includes at least one first elastic arm 31 and a first connecting arm 32. The first elastic arm 31 has a first contact portion 311 on its inner surface, and the first connecting arm 32 is in a flat plate shape and abuts against the inner surface of one side of the adapter socket 2. In each first terminal group G1, the two first contact portions 311 of the two first power terminals 3 disposed opposite to each other are disposed facing each other. In addition, each first power terminal 3 is bent so that there is an angle between the first elastic arm 31 and the first connecting arm 32. This angle is less than 180 degrees. Optionally, the first elastic arm 31 is bent inward (towards the other first elastic arm 31 of the same first terminal group G1) towards the first contact portion 311 with the connection portion between the first elastic arm 31 and the first connecting arm 32 as the bending point.

[0033] As shown in Figure 4 and Figure 5 , the first elastic arms 31 of the plurality of first power terminals 3 extend to the first notch 110, and the first connecting arms 32 of the plurality of first power terminals 3 extend out from the second notch 130 and are bent upward, for example: 90 degrees, and extend into the adapter socket 2. That is, the plurality of first power terminals 3 are not physically connected to the circuit board B2. The plurality of first elastic arms 31 are disposed in the first notch 110 so that the first notch 110 forms an input interface F1 for inserting the electronic card B1, and the first connecting arms 32 extend out from the second notch 130 and are disposed in the adapter socket 2 so that the adapter socket 2 forms a power output interface F2. Thereby, the power provided by the electronic card B1 is input from the input interface F1 and is completely output from the power output interface F2 through the conduction of the plurality of first power terminals 3.

[0034] Referring to Figure 1 , Figure 6 and Figure 11 , when the electronic card B1 is inserted into the first notch 110, the two first elastic arms 31 of the two first power terminals 3 of each first terminal group G1 clamp the electronic card B1, and the two first contact portions 311 of the two first elastic arms 31 abut against two power transmission pads B11 on the upper and lower surfaces of the electronic card B1 ( Figure 6 Due to the limited viewing angle, only the power transmission pad B11 located on the lower surface of the electronic card B1 is shown).

[0035] Next, referring to Figure 3 , Figure 4 and Figure 10As shown, the docking connector M2 includes a second insulating housing 4, a plurality of second power terminals 5, and a plurality of power leads 6. The plurality of second power terminals 5 are disposed within the second insulating housing 4, and the plurality of power leads 6 extend into the second insulating housing 4 and are electrically connected to the plurality of second power terminals 5. When the docking connector M2 is plugged into the adapter socket 2 of the adapter connector M1, the plurality of second power terminals 5 are respectively electrically connected to the plurality of first power terminals 3, so that the power output from the power output interface F2 is transmitted to the plurality of power leads 6.

[0036] Referring to Figure 10 and Figure 11 As shown, the plurality of second power terminals 5 are divided into a plurality of second terminal groups G2. Each second terminal group G2 includes two of the plurality of second power terminals 5 that are disposed opposite to each other, and the two second power terminals 5 are separated from each other and do not contact each other, so as to transmit power of the same or different electric potentials. Each second power terminal 5 includes at least one second contact arm 51 and a second connecting arm 52. The second connecting arm 52 is in a flat plate shape and is used for electrically connecting the plurality of power leads 6. For example, each second connecting arm 52 is ultrasonically welded to at least one power lead 6. The second contact arm 51 is a spring arm and has a second contact portion 511 on the outer surface. As Figure 10 shown, in the second terminal group G2, the two second contact portions 511 of the two second power terminals 5 are disposed in a back-to-back manner. Each second power terminal 5 is in a bent shape, so that an included angle of approximately 90 degrees is formed between the second contact arm 51 and the second connecting arm 52. Further, as Figure 11 shown, through the bent structures of the first power terminal 3 and the second power terminal 5, the insertion direction (i.e., the power input direction) of the electronic card B1 and the extending direction (i.e., the power output direction) of the power leads 6 can be parallel but not in the same plane.

[0037] As Figure 11As shown, the interior of the second insulating housing 4 includes a partition wall 41 and a stop portion 42. The partition wall 41 is disposed between two second contact arms 51, and the stop portion 42 is connected to the bottom end of the partition wall 41. When the docking connector M2 is plugged into the adapter socket 2 of the adapter connector M1, the docking slot 40 at the bottom of the second insulating housing 4 will be docked with the adapter slot 20 of the adapter socket 2, and the two second contact arms 51 of the two second power terminals 5 in each second terminal group G2 will be located between the two first connection arms 32 of the two first power terminals 3 in the first terminal group G1. That is to say, the two second contact arms 51 are clamped between the two first connection arms 32. At this time, the two second contact arms 51 provide elastic restoring forces to both sides and respectively abut against the two first connection arms 32, so that the two first connection arms 32 physically contact the two second contact arms 51 respectively, thereby electrically connecting the first power terminal 3 to the second power terminal 5. In addition, through the design of the stop portion 42, the stop portion 42 can protect the second contact arm 51 and prevent the second contact arm 51 from being improperly collided by other objects. Even when the first connection arm 32 is inserted in a non-correct insertion direction during the plugging process and directly collides with the second contact arm 51, it may cause the second contact arm 51 to bend or shift, affecting the current conduction efficiency.

[0038] It should be noted that in the present invention, the electrical connection between the first power terminal 3 and the second power terminal 5 is achieved by the elastic arm in one of the power terminals abutting against the flat-shaped connection arm in the other power terminal. Through the positive stress provided by the elastic arm acting on the flat-shaped connection arm, the physical contact between the elastic arm and the connection arm can be made sufficiently firm and the contact area between them is large enough to reduce the impedance during current transmission. Regarding the configuration of the elastic arm and the connection arm, the present invention is not limited. For example, in other embodiments, the elastic arm (the second contact arm 51) in the second power terminal 5 can be changed to a flat-shaped connection arm, and the connection arm (the first connection arm 32) in the first power terminal 3 can be changed to an elastic arm, which is also feasible.

[0039] As Figure 3 and Figure 11 shown, the second insulating housing 4 further includes a buckle member 43, and the buckle member 43 is disposed on the opposite side of the side of the second insulating housing 4 where a plurality of power leads 6 are provided. Specifically, the outer shape of the second insulating housing 4 is a cuboid, and the buckle member 43 is disposed on the long side of one side of the cuboid. As Figure 3As shown, the buckle member 43 includes a pressing portion 431 and a hook portion 432, and the hook portion 432 has a guiding surface 432S. The adapter socket 2 includes a protruding portion 21, and the protruding portion 21 has a guiding surface 21S. The slopes of the guiding surface 21S and the guiding surface 432S are the same. When the docking connector M2 is inserted into the adapter socket 2 of the adapter connector M1 in a direction N1, the guiding surface 432S of the hook portion 432 abuts against the guiding surface 21S of the protruding portion 21 and moves relative thereto, enabling the hook portion 432 to be smoothly latched onto the protruding portion 21 through the design of the two guiding surfaces, thereby fixing the docking connector M2 to the adapter connector M1. Conversely, when separating the docking connector M2 from the adapter connector M1, the user only needs to press the pressing portion 431 of the buckle member 43 to separate the hook portion 432 from the protruding portion 21, and then the docking connector M2 can be removed from the adapter socket 2.

[0040] Referring to Figures 4 to 6 , and also referring to Figure 8 as shown. The adapter connector M1 of the present invention further includes a plurality of signal terminals 7 disposed in the first insulating housing 1. Each signal terminal 7 includes a resilient arm 71 and a pin 72. The signal terminal 7 is bent such that an angle between the resilient arm 71 and the pin 72 is approximately 90 degrees. A plurality of resilient arms 71 are disposed in the first notch 110, and two resilient arms 71 abut against two signal transmission pads B12 on opposite surfaces of the electronic card B1 inserted into the first notch 110, while the pins 72 extend out from the second notch 130 and are bent and inserted into the circuit board B2. In other words, the second notch 130 forms a signal output interface F3. Thus, as Figure 4 and Figure 5 shown, the signals provided by the electronic card B1 are input through the input interface F1 and are completely output from the signal output interface F3 to the circuit board B2 through conduction by the plurality of signal terminals 7. Further, in the present invention, by facing the input interface F1, the power output interface F2, and the signal output interface F3 in different directions, the power and signals provided by the electronic card B1 are shunted / transmitted to different paths. The power is transmitted through the power lead 6 of the docking connector M2, for example: to the other side of the circuit board B2 or to another circuit board (not shown in the figure); while the signals are transmitted through the circuit board B2, thereby avoiding overheating of the circuit board B2 due to large current flowing through it.

[0041] In addition, the first power terminal 3 further includes an interference portion 33 (see Figure 7 ), and the interference portion 33 is disposed between the first resilient arm 31 and the first connecting arm 32. The signal terminal 7 further includes an interference portion 73 (see Figure 8 ), and the interference portion 73 is disposed between the resilient arm 71 and the pin 72. Through the structural design of the interference portion 33 and the interference portion 73, the first power terminal 3 and the signal terminal 7 can be fixed in the first insulating housing 1 when disposed therein, and will not be displaced due to the insertion and removal of the electronic card B1.

[0042] It should be noted that although the adapter connector M1 of the present invention includes a plurality of first power terminals 3 and a plurality of signal terminals 7, the present invention is not limited to the examples given above. In another embodiment, the adapter connector M1 may not include the signal terminals 7 and only include the first power terminals 3. In other words, the adapter connector M1 is not limited to being a board-end connector and does not need to be disposed on the circuit board B2, but can be paired with any electronic device or system that requires large current transfer. The adapter connector M1 is installed in any idle space of the electronic device or system, and current is transmitted to one or more circuit boards or other electronic components in the electronic device or system through the power leads 6 of the docking connector M2. In addition to avoiding the overheating problem of the circuit board B2, the circuit board B2 does not need to provide space for installing the adapter connector M1, thereby reducing the area and cost of the circuit board B2.

[0043] Second Embodiment

[0044] Refer to Figure 12 As shown, the second embodiment of the present invention provides an electrical connector assembly D', whose structure is similar to that of the electrical connector assembly D of the first embodiment. The electrical connector assembly D' includes an adapter connector M1' and a docking connector M2'. The adapter connector M1' can be externally inserted into the electronic card B1, and the adapter connector M1' can be disposed on the circuit board B2.

[0045] Refer to Figure 14 As shown, the adapter connector M1' includes a first insulating housing 1, an adapter socket 2, and a plurality of first power terminals 3. The docking connector M2' includes a second insulating housing 4, a plurality of second power terminals 5, and a plurality of power leads 6. The same parts of the adapter connector M1' and the docking connector M2' in the second embodiment will not be repeated, and their main difference lies in the structures of the first power terminal 3 and the second power terminal 5.

[0046] Refer to Figure 15 As shown, in the second embodiment, the first power terminal 3 is integrally formed. The first power terminal 3 includes a first elastic arm 31, a first connecting arm 32 and a pin 34 arranged front and back, which are on the same plane (XZ plane) and extend in different directions respectively. In other embodiments, the first power terminal 3 may not include the pin 34, that is, like the first embodiment, the first power terminal 3 is not physically in contact with the circuit board.

[0047] As Figure 15As shown, multiple first elastic arms 31 are arranged in pairs and relatively disposed, such that the multiple first elastic arms 31 form an insertion port S1. The multiple first power terminals 3 can be superposed on each other in the left - right direction (Y - axis direction), so that the first contact portions 311 of the first elastic arms 31 are combined into a wider contact portion to increase the current - guiding capacity. Similarly, multiple first connecting arms 32 are arranged in pairs and front - rear disposed, such that the first connecting arms 32 form an insertion port S2, and the multiple first power terminals 3 being superposed on each other can also make the first connecting arms 32 combine into a wider contact portion.

[0048] Referring to Figure 17 As shown, the outer shape of the second power terminal 5 is further bent (after two - stage bending), such that there is a U - shaped structure 53 between the second contact arm 51 and the second connecting arm 52. The second contact arm 51 is in a flat plate shape, and the second connecting arm 52 is also in a flat plate shape. The second insulating housing 4 can include a main body 44 and a cover 45. One side (for example, the upper side) of the main body 44 has a slot 440, such that the second power terminal 5 can be inserted into the second insulating housing 4 through the slot. And referring to Figure 13 and Figure 17 As shown, the U - shaped structure 53 can fix the second power terminal 5 more stably in the second insulating housing 4. Then, the cover 45 is covered on the slot 440 of the main body 44 to complete the assembly. A plurality of power leads 6 extend out of the second insulating housing 4 from an outlet E defined jointly by the cover 45 and the main body 44. The second power terminal 5 is integrally formed and includes a plurality of second contact arms 51. That is to say, one second connecting arm 52 can connect a plurality of second contact arms 51. In this way, the differences in the current transmitted and heat generated by the plurality of second contact arms 51 can be balanced through the second connecting arm 52, avoiding the problem that the temperature of a single second contact arm 51 may be significantly higher than that of other second contact arms 51. And there can be a plurality of through - holes on the cover 45, such that heat can dissipate through the through - holes.

[0049] Two snap - fasteners 43 are arranged on the short sides of both sides of the second insulating housing 4. The adapter socket 2 includes two protruding portions 21, which are arranged on the short sides of both sides of the adapter socket 2. When the docking connector M2 is plugged into the adapter socket 2 of the adapter connector M1, the hook portion 432 is buckled to the protruding portion 21, fixing the docking connector M2 to the adapter connector M1.

[0050] Referring to Figure 12 、 Figure 15 and Figure 18As shown, when the docking connector M2' is docked to the adapter connector M1', the second contact arm 51 is inserted into the insertion port S2 and electrically connected to the first connection arm 32. The first connection arms 32 arranged front and back clamp the second contact arm 51 therebetween, and the second connection arm 52 is electrically connected to the power lead 6. In addition, the electronic card B1 can be electrically connected to the first elastic arm 31 through the insertion port S1, and the first elastic arms 31 arranged oppositely clamp the electronic card B1 therebetween. In addition, the pin 34 is inserted into the circuit board B2. Therefore, the power supplied by the electronic card B1 is shunted to different paths. The power is input from the electronic card B1, passes through the first elastic arm 31 and the first connection arm 32, and part of it is further transmitted to the power lead 6 via the second power terminal 5, and the other part passes through the first elastic arm 31 and the pin 34 and is transmitted to the circuit board B2. The signal is input from the electronic card B1, passes through the first elastic arm 31 and the pin 34 and is transmitted to the circuit board B2. Thereby, it is possible to prevent all of the large current of the power supply from flowing through the circuit board B2 and causing overheating.

[0051] Advantageous effects of the embodiment

[0052] The electrical connector assembly provided by the present invention can, through the technical solutions of "the first insulating housing 1 includes a first side surface 11, a second side surface 13 and a third side surface 12 arranged in different orientations", "a plurality of first elastic arms 31 are arranged in the first notch 110 so that the first notch 110 forms an input interface F1", and "a plurality of first connection arms 32 extend from the second notch 130 and are arranged in the adapter socket 2 so that the adapter socket 2 forms a power output interface F2", make the input interface F1 and the power output interface F2 face different orientations respectively, thereby shunting the power and signals provided by the electronic card B1 to different paths or shunting the power to different paths, and transmitting the power through a pair of docked wire-end connectors, so as to prevent excessive current from flowing through the circuit board B2 and causing overheating.

[0053] The content disclosed above is only the preferred feasible embodiment of the present invention, and does not limit the protection scope of the claims of the present invention. Therefore, all equivalent technical changes made by using the content of the specification and drawings of the present invention are included in the protection scope of the claims of the present invention.

Claims

1. An electrical connector assembly, characterized in that: The electrical connector assembly comprises: A transfer connector, mounted on a circuit board, comprises: A first insulating shell, comprising a first side surface and a second side surface facing different directions, wherein the first side surface has a first notch; a switching socket, disposed on the second side surface; and A plurality of first power terminals, each of which includes at least one first elastic arm and one first connecting arm, wherein the plurality of first elastic arms are disposed in the first slot so that the first slot forms an input interface for inserting an electronic card for providing power, and the plurality of first connecting arms are disposed in the adapter socket so that the adapter socket forms a power output interface, wherein the plurality of first power terminals are not physically connected to the circuit board.

2. The electrical connector assembly according to claim 1, characterized in that: The electrical connector assembly also includes a docking connector adapted for the adapter connector, the docking connector can be detachably plugged into the adapter socket, the docking connector includes a second insulating shell, a plurality of second power terminals and a plurality of power leads, the plurality of second power terminals are arranged in the second insulating shell, and the plurality of power leads are electrically connected to the plurality of second power terminals.

3. The electrical connector assembly according to claim 2, characterized in that: The plurality of first power terminals are divided into a plurality of first terminal groups, each of the first terminal groups includes two of the plurality of first power terminals relatively configured, and the plurality of second power terminals are divided into a plurality of second terminal groups, each of the second terminal groups includes two of the plurality of second power terminals relatively configured.

4. The electrical connector assembly according to claim 3, characterized in that: The first connecting arm is in a flat plate shape. When the electronic card is inserted into the first slot, the two first elastic arms of the two first power terminals of each first terminal group clamp the electronic card.

5. The electrical connector assembly according to claim 4, characterized in that: Each of the second power terminals includes at least one second contact arm and a second connecting arm, and the second connecting arm is in the shape of a plate. When the docking connector is plugged into the adapter socket of the adapter connector, the two at least one second contact arms of the two second power terminals in each of the second terminal groups respectively abut against the two first connecting arms of the two first power terminals in the first terminal group.

6. The electrical connector assembly according to claim 5, characterized in that: The first elastic arm has a first contact portion, and the at least one second contact arm includes a second contact portion. In any one of the first terminal groups, the two first contact portions of the two first power terminals are arranged facing each other; wherein, in any one of the second terminal groups, the two second contact portions of the two second power terminals are arranged back to back.

7. The electrical connector assembly according to claim 3, characterized in that: The second insulating shell includes a partition wall and a stopper inside. The partition wall is arranged between the two second power terminals of each second terminal group, and the stopper is connected to the bottom end of the partition wall.

8. The electrical connector assembly according to claim 2, characterized in that: Each of the second power terminals includes at least one second contact arm and a second connecting arm, and a U-shaped structure is formed between the at least one second contact arm and the second connecting arm.

9. The electrical connector assembly according to claim 2, characterized in that: The second insulating shell includes a main body and a cover body, and a plurality of power leads extend out of the second insulating shell through an outlet jointly defined by the cover body and the main body.

10. The electrical connector assembly according to claim 2, characterized in that: Each of the second power terminals includes a plurality of second contact arms and a second connecting arm. Each of the second contact arms is in a plate shape, and the second connecting arm is in a plate shape.

11. The electrical connector assembly according to claim 1, characterized in that: The adapter connector also includes a plurality of signal terminals and a third side surface, the third side surface has a second slot, each of the signal terminals includes an elastic arm and a pin, wherein the plurality of elastic arms are disposed in the first slot, and the pin extends from the second slot and is inserted into the circuit board.

12. The electrical connector assembly according to claim 11, characterized in that: The signal provided by the electronic card is input through the input interface and is completely transmitted to the circuit board via the plurality of signal terminals.

13. The electrical connector assembly according to claim 1, wherein: The at least one first elastic arm of each first power terminal and the first connecting arm are located in the same plane, and a plurality of first power terminals are attached to and overlapped with each other.

14. A power supply system, characterized in that: The power supply system comprises: A transfer connector, comprising: A first insulating shell, comprising a first side surface and a second side surface facing different directions, wherein the first side surface has a first notch; a switching socket, disposed on the second side surface; and A plurality of first power terminals, each of which comprises at least one first elastic arm and one first connecting arm, wherein the plurality of first elastic arms are disposed in the first slot, so that the first slot forms an input interface for inserting an electronic card for providing power, and the plurality of first connecting arms are disposed in the adapter socket, so that the adapter socket forms a power output interface; A docking connector adapted to the adapter connector, the docking connector can be detachably plugged into the adapter socket, and the docking connector includes: a second insulating housing; a plurality of second power terminals, disposed in the second insulating housing; and a plurality of power leads electrically connected to the plurality of second power terminals; and A circuit board is provided, and a plurality of power leads are electrically connected to the circuit board, so that when the electronic card is inserted into the input interface, the current of the electronic card is transmitted to the circuit board through the transfer connector and the docking connector.

15. The power supply system according to claim 14, characterized in that: The plurality of first power terminals are not physically connected to the circuit board.

16. The power supply system according to claim 14, characterized in that: The plurality of first power terminals are divided into a plurality of first terminal groups, and each of the first terminal groups includes two of the plurality of first power terminals that are oppositely arranged and separated from each other.

17. The power supply system according to claim 16, characterized in that: The plurality of second power terminals are divided into a plurality of second terminal groups, and each of the second terminal groups includes two of the plurality of second power terminals that are arranged opposite to and separated from each other.

18. The power supply system according to claim 14, characterized in that: Each of the first power terminals includes the at least one first elastic arm and the first connecting arm located in the same plane, and a plurality of the first power terminals are attached to and overlapped with each other.

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