TWI792951B - Connectors and Connector Components - Google Patents

Abstract

A connector, comprising a signal connection port and a power connection port arranged side by side, the signal connection port includes a plurality of signal terminals, the power connection port includes a protective ground terminal and at least two power terminal groups, each power terminal The group has at least two power terminals, and the protective ground terminal is located between the signal connection port and the power terminal groups; wherein, the signal terminals, the protective ground terminal and the power terminals of the power terminal groups each have A pair of butt joints, the length of the butt joint of the protective ground wire terminal is longer than the length of the butt joint of the power terminals, the length of the butt joint of the protective ground wire terminal is greater than the length of the butt joint of the signal terminals, and the signal The butt joint portion of the terminal has at least two different lengths, and the signal terminal with the shorter joint portion is used as a detection terminal.

Description

Connectors and Connector Components

The present invention relates to a connector and a connector assembly, in particular to a connector and a connector assembly with signal terminals and power terminals.

Chinese Invention Patent Announcement No. CN1258838C (corresponding to U.S. Patent No. US6,322,377) discloses a connector assembly. The grounding joint and a part of the power joint of the connector assembly are arranged on the right side of the signal joint, while the other part of the power joint The connectors are arranged on the left side of the signal connector. The length of the piece of the power connector on the left side of the signal connector is shorter than the length of the ground connector and the piece of power connector on the right side of the signal connector, while the length of the piece of the ground connector and power connector on the right side of the signal connector is shorter. same length. Wherein, the power connector on the right side of the signal connector inputs AC power into the first printed circuit board, and the power connector on the left side of the signal connector outputs DC power from the first printed circuit board. However, since the ground connector and the power connector on the right side of the signal connector are the same length, the connection will be made at the same time during the mating process of the connectors, so there is a danger of flashover. In addition, the power connector on the left side of the signal connector directly adjacent to the signal connector will also cause interference because there is no shielding in between.

Therefore, an object of the present invention is to provide a connector and a connector assembly that can improve at least one disadvantage of the prior art.

Therefore, in some embodiments, the connector of the present invention includes a signal connection port and a power connection port arranged side by side, the signal connection port includes a plurality of signal terminals, the power connection port includes a protective ground terminal and at least Two power terminal groups, each power terminal group has at least two power terminals, and the protective ground terminal is located between the signal connection port and the power terminal groups; wherein, the signal terminals, the protective ground terminal and The power terminals of the power terminal groups each have a pair of butt joints, the length of the butt joints of the protective ground wire terminals is longer than the length of the butt joints of the power supply terminals, and the length of the butt joints of the protective ground wire terminals is longer than the signal terminals The length of the butt joint portion of the signal terminals has at least two different lengths, and the signal terminal with the shorter butt joint portion is used as a detection terminal.

In some implementation aspects, there is a first distance between the protective ground terminal and adjacent power terminals, there is a second distance between the power terminals of each power terminal group, and there is a second distance between the power terminals of adjacent power terminal groups. There is a third distance, and the third distance is larger than the first distance and the second distance.

In some implementation aspects, the first distance is equal to the second distance.

In some implementation aspects, the first distance is greater than the second distance.

In some embodiments, the butt joints of the signal terminals have three different lengths, and the signal terminal with the longer butt joint is used as a terminal for grounding.

In some implementation aspects, the length of the docking portion of the power terminals is greater than the length of the docking portion of the signal terminals.

In some embodiments, at least one of the power terminal sets is used to transfer direct current and at least the other is used to transfer alternating current.

In some implementations, the power connection port includes two power terminal groups, and the two power terminals in each power terminal group are live wire terminals and neutral wire terminals respectively.

In some implementation aspects, the abutting portion of the protective ground terminal and the abutting portion of the power terminals are blade-shaped.

Therefore, in some embodiments of the present invention, the connector assembly includes the aforementioned connector and a mating connector. The matching connector includes a matching signal connection port and a matching power connection port, the matching signal connection port includes a plurality of matching signal terminals for mating with the signal terminals of the connector, the matching The power connection port includes a plurality of matching terminals for mating with the protective ground terminal of the connector and the power terminals of the power terminal groups. When the connector is docked with the mating connector, the protective ground terminal is first connected to the corresponding mating terminal, and the signal terminal with the shorter docking portion is finally connected; the connector and the mating When the connector is undocked, the signal terminal with the shorter docking portion is first undocked, and the protective ground terminal is last undocked from the corresponding mating terminal.

In the present invention, the protection ground terminal is longer than other terminals to generate an electrical protection mechanism to avoid dangerous situations such as flashover. In addition, since the protective ground terminal is located between the signal connection port and the power supply terminal groups, it can shield the signal terminals of the signal connection port from interference. In addition, the size relationship between the first distance, the second distance, and the third distance between the terminals of the power connection port can properly arrange the terminals of the power connection port in a limited space, In order to make the connector have the performance of lightning resistance and high voltage resistance. Furthermore, the mating portions of the signal terminals have different lengths. For example, the signal terminal with a shorter mating portion is connected at the end, so it can be used as a tool for detecting whether the connector and the mating connector are mated or not. terminal; and the signal terminal with a longer butt joint can be used as a grounding terminal.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same numerals.

Referring to FIG. 1 , a first embodiment of a connector assembly 100 of the present invention includes a connector 1 and a mating connector 2 . The connector 1 is suitable for being disposed on a circuit board 200 , and the mating connector 2 is suitable for being disposed on a mating circuit board 200 .

Referring to Fig. 1 to Fig. 4, the connector 1 includes connectors arranged side by side along a front-rear direction D1 (the arrow direction is forward, and the reverse direction is backward) facing forward and along a left-right direction D2 (the arrow direction is rightward, and the reverse direction is leftward). A signal connection port 11 and a power connection port 12 , and two guide posts 13 respectively arranged on the outside of the signal connection port 11 and the power connection port 12 in the left-right direction D2 . The signal connection port 11 includes a signal connection seat 111, and the signal connection seat 111 is provided with a plurality of signal terminals 112 arranged in an array along the left-right direction D2 and an up-down direction D3 (the direction of the arrow is upward, and the opposite direction is downward). . The signal connection seat 111 has a signal insertion groove 111a facing forward, and a signal terminal assembly groove 111b formed from the rear to the front and connected to the signal insertion groove 111a, the signal terminal assembly groove 111b has a rearward The socket 111c is assembled, and a bottom opening 111d faces downward. The signal terminals 112 are arranged in groups of five on the respective corresponding holding pieces 113 by means of, for example, insert molding, and each signal terminal 112 has a corresponding holding piece 113 passing through the front. A pair of abutting portion 112a, and a tail portion 112b passing through the corresponding holding piece 113 downwards, and these holding pieces 113 are arranged side by side and assembled into the signal terminal assembly groove 111b from the assembly socket 111c from the rear to the front, so that The butt joints 112a of the signal terminals 112 extend into the signal insertion slot 111a, and the tails 112b of the signal terminals 112 face down and pass through the bottom opening 111d of the signal terminal assembly slot 111b to be inserted into the circuit board. The jack 201 of 200 is further mechanically and electrically connected to the circuit board 200 .

The power connection port 12 includes two power connection sockets 121 arranged side by side along the left-right direction D2 , and a protective ground terminal 122 and two power terminal groups 123 disposed on the power connection sockets 121 . One of the power connection sockets 121 adjacent to the signal connection port 11 is provided with the protection ground terminal 122 and one of the power terminal groups 123, and the other power connection socket 121 is provided with another power terminal group 123, and the protection The ground terminal 122 is located between the signal connection port 11 and the power terminal groups 123 . In this embodiment, one of the two power terminal groups 123 is used to transmit DC power and the other is used to transmit AC power, each power terminal group 123 has two power terminals 123a, and each power terminal group 123 has two The power terminals 123a are live wire terminals 123b and neutral wire terminals 123c respectively, but the number of these power terminal groups 123 can be changed, and the number and function of each power terminal group 123 can be changed and adjusted according to the demand. This first embodiment is a limitation. Each power connection base 121 has a plurality of power terminal assembly grooves 121a formed from the rear to the front, and each power terminal assembly groove 121a has an assembly socket 121b facing backward, a front opening 121c facing forward, and a The bottom opening 121d. The protective ground terminal 122 and the power terminals 123a are respectively inserted into the power terminal assembly grooves 121a from the assembly sockets 121b of the power terminal assembly grooves 121a. The power terminal assembling groove 121a is divided into a fixing part 122a of two pieces, a pair of connecting part 122b extending from the fixing part 122a and passing through the front opening 121c forward, and extending from the fixing part 122a and The bottom opening 121d of the power terminal assembling groove 121a passes downwards to be inserted into the plurality of tails 122c of the socket 201 of the circuit board 200 . Each power terminal 123a has a fixed portion 123d fixed in the power terminal assembly groove 121a of the corresponding power connection base 121 and divided into two pieces, extending from the fixed portion 123d and passing through the front opening 121c forward. A pair of abutting portion 123e, and a plurality of tail portions 123f extending from the fixing portion 123d and passing downwards from the bottom opening 121d of the power terminal assembly groove 121a to be inserted into the socket 201 of the circuit board 200, by The tail portion 122 c of the protective ground terminal 122 and the tail portion 123 f of the power terminals 123 a mechanically and electrically connect the protective ground terminal 122 and the power terminals 123 a to the circuit board 200 . Wherein, the abutting portion 122b of the protective ground terminal 122 and the abutting portion 123e of the power terminals 123a are in the shape of a blade extending along the front-rear direction D1 and the up-down direction D3, and the butt portion 122b of the protective ground terminal 122 is in the shape of a The edge of the abutting portion 123e of the power supply terminal 123a is in the shape of a guiding bevel, thereby producing a guiding effect.

Each guide post 13 has a setting portion 131 respectively disposed on the outside of the signal connection port 11 and the power connection port 12 in the left-right direction D2, and a post portion extending forward from the setting portion 131 132. The connector 1 also has a plurality of fastening structures 14 formed on the sides between the signal connection seat 111, the power supply connection seat 121, and the setting portions 131 of the two guiding posts 13. These fastening structures 14 The signal connecting seat 111, the power connecting seat 121, and the setting parts 131 of the two guiding posts 13 are fixed to each other, and each buckling structure 14 has a buckling groove 141 with an opening facing backward and two buckling joints. block 142 , the two fastening blocks 142 are arranged side by side along the up-down direction D3 , extend along the front-back direction D1 , and snap into the fastening groove 141 from back to front. In addition, the setting portion 131 of each guiding post 13 has a positioning post portion 133 extending downward to be inserted into the positioning hole 202 of the circuit board 200 .

Referring to FIG. 1, FIG. 5 to FIG. 7, the mating connector 2 includes a signal connection port 11 and a power connection port arranged side by side along the left and right direction D2 (the arrow points to the right and the reverse direction to the left) and corresponds to the connector 1 respectively. 12, a matching signal connection port 21 and a matching power connection port 22, and two guides respectively arranged on the outside of the matching signal connection port 21 and the matching power connection port 22 in the left-right direction D2 Socket 23. The mating signal connection port 21 includes a mating signal connection seat 211, and the mating signal connection seat 211 is provided with a plurality of mating signal terminals 212 arranged in an array along the left-right direction D2 and the up-down direction D3. The matching signal terminals 212 are respectively used for mating with the signal terminals 112 of the connector 1 . The mating signal connection socket 211 has a mating signal insertion portion 211a for correspondingly inserting into the signal insertion slot 111a of the connector 1, and a plurality of mating signal insertion portions formed on the mating signal insertion portion 211a. Slot 211b, and a mating signal terminal assembly groove 211c formed away from the mating signal insertion part 211a and connected to the mating signal insertion grooves 211b along the front and rear direction D1, the mating signal terminal assembly groove 211c has an assembly socket 211d away from the mating signal inserting portion 211a, and a bottom opening 211e facing downward. The mating signal terminals 212 are arranged in groups of five on the respective corresponding retaining pieces 213 by means of, for example, insert molding, and each mating signal terminal 212 has a corresponding hole that passes through the front. The holding piece 213 is a fitting part 212a in the shape of an elastic arm, and a tail part 212b that passes through the corresponding holding piece 213 downwards. These holding pieces 213 are arranged side by side and enter the matching signal from the assembly socket 211d. Terminal assembly groove 211c, so that the mating portion 212a of the mating signal terminals 212 extends into the mating signal terminal assembling groove 211c, and the tail portions 212b of the mating signal terminals 212 face down from the mating signal terminal The bottom opening 211e of the assembling groove 211c passes through to be inserted into the mating circuit board 200 , and then mechanically and electrically connected to the mating circuit board 200 . When the mating signal insertion portion 211a is inserted into the signal insertion slot 111a of the connector 1, the mating portions 112a of the signal terminals 112 of the connector 1 extend into the mating portions of the mating connector 2 respectively. The signal insertion slot 211b is used to butt with the mating portion 212a of the mating signal terminals 212 of the mating connector 2 .

The matching power connection port 22 includes two matching power connection sockets 221 arranged side by side along the left-right direction D2, and the protective ground terminal provided on the matching power connection sockets 221 and used for connecting with the connector 1 122 and a plurality of matching terminals 222 to which the power terminals 123a of the power terminal groups 123 are matched. Each mating power connection socket 221 has a plurality of mating power sockets 221a for inserting the protective ground terminal 122 of the connector 1 and the power terminals 123a of the power terminal groups 123, and is away from the power supply socket 221a. A plurality of matching power terminal assembly grooves 221b formed at the matching power supply insertion slots 221a and respectively connected to the matching power supply insertion slots 221a along the front and rear direction D1, each matching power terminal assembly groove 221b has a distance from Correspondingly, an assembly socket 221c is matched with the power socket 221a, and a bottom opening 221d faces downward. The matching terminals 222 are respectively inserted into the matching power terminal assembly grooves 221b from the assembly sockets 221c of the matching power terminal assembly grooves 221b. A fixing part 222a which is divided into two parts in the matching power supply terminal assembly groove 221b, extends from the fixing part 222a and extends into the corresponding matching power supply insertion groove 221a and is a plurality of connecting parts in the shape of elastic arms. part 222b, and a plurality of tail parts 222c extending from the fixed part 222a and downwardly passing through the bottom opening 221d of the matching power terminal assembly groove 221b to be inserted into the matching circuit board 300, through the tail parts 222c connects the mating terminals 222 to the mating circuit board 300 mechanically and electrically. When the mating portion 122b of the protective ground terminal 122 of the connector 1 and the mating portion 123e of the power terminals 123a are inserted into the mating power sockets 221a, each mating terminal of the mating connector 2 Two mating parts 222b of 222 which are a set respectively sandwich the corresponding butt joint part 122b of the protective earth terminal 122 or the butt joint parts 123e of the power terminals 123a in the left-right direction D2, so as to connect with the connector The abutting portion 122b of the protective ground terminal 122 of 1 or the abutting portion 123e of the power terminals 123a are abutted.

Each guide socket 23 has a setting portion 231 respectively located on the outer sides of the matching signal connection port 21 and the matching power connection port 22 in the left-right direction D2, and is formed on the setting portion 231 for the connection. The post part 132 of the guide post 13 of the device 1 is correspondingly inserted into a socket hole part 232 . The mating connector 2 also has a plurality of buckling structures 24 formed on the sides between the mating signal connection seat 211 , the mating power connection seat 221 and the setting portions 231 of the two guide sockets 23 , the The buckling structure 24 is similar to the buckling structure 14 to fix the mating signal connection seat 211 , the mating power connection seat 221 and the setting portions 231 of the two guiding sockets 23 to each other. In addition, the setting portion 231 of each guiding socket 23 has a positioning column portion 233 extending downward to be inserted into the positioning hole 202 (not shown) of the mating circuit board 200 .

Referring to Fig. 1, Fig. 5 to Fig. 7, the length of the butt joint portion 122b of the protective earth terminal 122 of the connector 1 in the present invention is greater than the length of the butt joint portion 123e of the power terminals 123a and the length of the signal terminals 112 Therefore, when the connector 1 is docked with the mating connector 2, the protective ground terminal 122 is first connected to the corresponding mating terminal 222, and the connector 1 is disconnected from the mating connector 2. When docking, the protective ground terminal 122 is finally disconnected from the corresponding mating terminal 222 . The protection ground terminal 122 which is longer than other terminals can generate an electrical protection mechanism to avoid dangerous situations such as flashover. In addition, since the protective ground terminal 122 is located between the signal connection port 11 and the power terminal groups 123 , it can shield the signal terminals 112 of the signal connection port 11 from interference. In addition, the butt joints 112a of the signal terminals 112 of the connector 1 have three different lengths. For example, the signal terminal 112' with the shorter butt joints 112a can be used to detect the connection because it is the last to complete the connection. The connector 1 is connected to the mating connector 2 or not; and the longer signal terminal 112 ″ of the docking portion 112 a can be used as a terminal for grounding. It should be noted that the longer mating portion of the terminal means that the distance from the mating portion of the terminal exposed to the mating interface is longer, that is, the end of the mating portion of the terminal extends to a relatively more forward position.

In addition, there is a first distance L1 between the abutting portion 122b of the protective ground terminal 122 and the adjacent power terminal 123a, and there is a second distance L2 between the power terminals 123a of each power terminal group 123. There is a third distance L3 between the two power terminal groups 123, the third distance L3 is greater than the first distance L1 and the second distance L2, and the first distance L1 is equal to the second distance L2. The longer third distance L3 between the two power terminal groups 123 can prevent the two power terminal groups 123 from being short-circuited to each other when the two power terminal groups 123 are loaded with high voltage due to unexpected factors such as lightning. That is to say, through the relationship between the first distance L1, the second distance L2 and the third distance L3 between the terminals of the power connection port 12, the power supply connection port 12 can be properly arranged in a limited space. Each terminal of the power connection port 12 enables the connector 1 to have performances of lightning resistance and high voltage resistance.

8 to 11, a second embodiment of the connector assembly 100 of the present invention differs from the first embodiment in that the signal connection port 11 and the power connection port 12 of the connector 1 are located in the left-right direction D2 The positions of the mating signal connection port 21 and the mating power connection port 22 of the mating connector 2 are swapped in the left-right direction D2. Moreover, the signal connection seat 111, the power supply connection seat 121 and the two guide pins 13 of the connector 1 are integrally formed, and the mating signal connection seat 211, the mating connector 2 The power connection socket 221 is integrally formed with the two guide sockets 23 . In the second embodiment, the third distance L3 between two adjacent power terminal groups 123 is larger than the first distance L1 between the protective ground terminal 122 and the adjacent power terminal 123a, the protective ground The first distance L1 between a terminal 122 and an adjacent power terminal 123 a is greater than the second distance L2 between two power terminals 123 a of each power terminal group 123 . In addition, the length of the mating portion 123e of the power terminals 123a is longer than the length of the mating portion 112a of the signal terminals 112, so that the connection between the connector 1 and the mating connector 2 can be caused by the power terminals 123a After the connection is completed, the connection of the power supply is established, and then the connection of the signal is established due to the completion of the connection of the signal terminals 112 . In addition, in the second embodiment, the mating portions 112a of the signal terminals 112 of the connector 1 have two different lengths,

To sum up, the present invention creates an electrical protection mechanism through the protective ground terminal 122 which is longer than other terminals, so as to avoid dangerous situations such as flashover. In addition, since the protective ground terminal 122 is located between the signal connection port 11 and the power terminal groups 123 , it can shield the signal terminals 112 of the signal connection port 11 from interference. In addition, the size relationship between the first distance L1, the second distance L2, and the third distance L3 between the terminals of the power connection port 12 can properly arrange the power connection port in a limited space. 12, so that the connector 1 has the performance of lightning resistance and high voltage resistance. Furthermore, the butt joints 112a of the signal terminals 112 have different lengths. For example, the signal terminal 112 with the shorter butt joints 112a is connected at the end, so it can be used to detect the connection between the connector 1 and the mating connection. The signal terminal 112 with a longer docking portion 112a can be used as a terminal for grounding.

But what is described above is only an embodiment of the present invention, and should not limit the scope of the present invention. All simple equivalent changes and modifications made according to the patent scope of the present invention and the content of the patent specification are still within the scope of the present invention. Within the scope covered by the patent of the present invention.

100:Connector assembly 1: connector 11: Signal port 111: Signal connector 111a: Signal socket 111b: Signal terminal assembly groove 111c: Assembly socket 111d: Bottom opening 112: Signal terminal 112': signal terminal 112'': signal terminal 112a: docking part 112b: Tail 113: Hold piece 12: Power port 121: Power connector 121a: Power terminal assembly groove 121b: Assembly socket 121c: front opening 121d: Bottom opening 122: Protective ground terminal 122a: fixed part 122b: docking part 122c: Tail 123: Power terminal group 123a: Power terminal 123b: live wire terminal 123c: Neutral terminal 123d: fixed part 123e: docking part 123f: Tail 13: Guide post 131: Setup Department 132: Pillar part 133:Positioning column part 14: Fastening structure 141: Buckle groove 142: buckle block 2: Mating connector 21:Matching signal port 211: Matching signal connection socket 211a: Matching signal socket 211b: Matching signal socket 211c: Matching signal terminal assembly groove 211d: Assembly socket 211e: Bottom opening 212: Matching signal terminal 212a: Fitting part 212b: Tail 213: Hold piece 22:Matching power port 221: Matching with power connection socket 221a: Connecting socket for power supply 221b: Fitting power terminal assembly groove 221c: Assembly socket 221d: Bottom opening 222: Matching terminal 222a: fixed part 222b: Fitting part 222c: Tail 23: Guide socket 231: Setup Department 232: socket hole 233: Positioning column 24: buckle structure 200: circuit board 201: jack 202: positioning hole 300: Matching circuit board D1: Front and rear directions D2: left and right direction D3: up and down direction L1: first spacing L2: second spacing L3: third spacing

Other features and effects of the present invention will be clearly presented in the implementation manner with reference to the drawings, wherein: 1 is a perspective view of a first embodiment of the connector assembly of the present invention, in which the connector and the mating connector of the first embodiment are respectively arranged on the circuit board and the mating circuit board; Fig. 2 is a three-dimensional exploded view of the connector and the circuit board of the first embodiment; Fig. 3 is a three-dimensional exploded view of the connector and the circuit board of the first embodiment in Fig. 2 viewed from another viewing angle; Fig. 4 is a further three-dimensional exploded view of Fig. 3; FIG. 5 is an exploded perspective view of the mating connector of the first embodiment; 6 is a cross-sectional view of the connector of the first embodiment and the mating connector, in which the connector of the first embodiment and the mating connector have not yet been docked; 7 is a cross-sectional view of the connector and the mating connector of the first embodiment viewed from another perspective, in which the connector of the first embodiment and the mating connector have not yet been docked; 8 is a perspective view of a second embodiment of the connector assembly of the present invention; Fig. 9 is a perspective view of the connector of the second embodiment; Figure 10 is a front view of the connector of the second embodiment; and Fig. 11 is a sectional view taken along line A-A in Fig. 10 .

100:Connector assembly

1: connector

11: Signal port

111a: Signal socket

111b: Signal terminal assembly groove

111c: Assembly socket

112: Signal terminal

112a: docking part

113: Hold piece

12: Power port

121a: Power terminal assembly groove

121b: Assembly socket

121d: Bottom opening

122: Protective ground terminal

122a: fixed part

122b: docking part

123: Power terminal group

123a: Power terminal

123d: fixed part

123e: docking part

13: Guide post

131: Setup Department

132: Pillar part

14: Fastening structure

2: Mating connector

21:Matching signal port

211a: Matching signal socket

211c: Matching signal terminal assembly groove

211d: Assembly socket

213: Hold piece

22:Matching power port

221a: Connecting socket for power supply

221b: Fitting power terminal assembly groove

221c: Assembly socket

222: Matching terminal

222a: fixed part

222b: Fitting part

23: Guide socket

231: Setup Department

232: socket hole

24: buckle structure

D1: Front and rear direction

D2: left and right direction

D3: up and down direction

L1: first spacing

L2: second spacing

L3: third spacing

Claims (10)

A connector, comprising a signal connection port and a power connection port arranged side by side, the signal connection port includes a plurality of signal terminals, the power connection port includes a protective ground terminal and at least two power terminal groups, each power terminal The group has at least two power terminals, and the protective ground terminal is located between the signal connection port and the power terminal groups; wherein, the signal terminals, the protective ground terminal and the power terminals of the power terminal groups each have A pair of butt joints, the length of the butt joint of the protective ground wire terminal is longer than the length of the butt joint of the power terminals, the length of the butt joint of the protective ground wire terminal is greater than the length of the butt joint of the signal terminals, and the signal The butt joint portion of the terminal has at least two different lengths, and the signal terminal with the shorter joint portion is used as a detection terminal. The connector according to claim 1, wherein there is a first distance between the protective ground terminal and adjacent power terminals, and there is a second distance between the power terminals of each power terminal group, and the adjacent There is a third distance between the power terminal groups, and the third distance is larger than the first distance and the second distance. The connector according to claim 2, wherein the first distance is equal to the second distance. The connector according to claim 2, wherein the first distance is greater than the second distance. The connector as claimed in claim 1, wherein the butt joint portions of the signal terminals have three different lengths, and the signal terminal with the longer butt joint portion is used as a terminal for grounding. The connector as claimed in claim 1, wherein the length of the abutting portion of the power terminals is greater than the length of the abutting portion of the signal terminals. The connector as claimed in claim 1, wherein at least one of the power terminal groups is used for transmitting direct current and at least the other is used for transmitting alternating current. The connector as claimed in claim 7, wherein the power connection port includes two power terminal groups, and the two power terminals in each power terminal group are live wire terminals and neutral wire terminals respectively. The connector as claimed in claim 1, wherein the abutting portion of the protective ground terminal and the abutting portion of the power terminals are blade-shaped. A connector assembly comprising: A connector as described in any one of claim 1 to claim 9; and A mating connector including a mating signal connection port and a mating power connection port, the mating signal connection port including a plurality of mating signal terminals for mating with the signal terminals of the connector, the The mating power connection port includes a plurality of mating terminals for mating with the protective earth terminal of the connector and the power terminals of the power terminal groups; When the connector is docked with the mating connector, the protective ground terminal is first connected to the corresponding mating terminal, and the signal terminal with the shorter docking portion is finally connected; the connector and the mating When the connector is undocked, the signal terminal with the shorter docking portion is first undocked, and the protective ground terminal is last undocked from the corresponding mating terminal.

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