Power connector

By designing stacked power terminals in the power connector, the problem of contact damage caused by electric arc is solved by utilizing the first contact to make initial contact and be lifted by the second contact, thus achieving continuous and normal power transmission.

CN224006183UActive Publication Date: 2026-03-17OUPIN ELECTRONICS (KUNSHAN) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-01
Publication Date
2026-03-17

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Abstract

The utility model discloses a power supply connector. The power supply connector comprises an insulating shell, a first power supply terminal and a second power supply terminal, the first power supply terminal and the second power supply terminal are stacked in the insulating shell, and a first contact of the first power supply terminal and a second contact of the second power supply terminal enter a slot and are adjacently arranged along the depth direction of the slot. The second contact is used for being electrically contacted with the insertion piece only after the first contact is electrically contacted with the insertion piece, so that the second contact is prevented from being damaged due to the generation of an electric arc. Further, when the second contact is in electrical contact with the insert, the first contact is lifted away from the insert.
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Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a power connector. Background Technology

[0002] When a power connector is connected to a device, it generates an electric arc. The high heat generated by the arc will damage the contacts, thus affecting the normal operation of the power connector.

[0003] To reduce the generation of electric arcs, some power connectors are equipped with detection terminals to ensure that power is applied only after the plug is inserted into the socket. However, how to ensure that the power connector can still function properly in a compact space has become a research focus in the industry.

[0004] Based on this, the inventor of this utility model has developed a power connector that can still function normally without a detection terminal. Utility Model Content

[0005] One objective of this utility model is to provide a power connector having two stacked power terminals, each having a first contact and a second contact. By sacrificing the first contact to protect the second contact from arc damage, the second contact can be ensured to transmit power normally, thus ensuring that the power connector can function properly.

[0006] Another objective of this utility model is to provide a power connector having two pairs of stacked power terminals. Each pair of power terminals protects the other contact from arc damage by sacrificing one contact, thereby ensuring that the other contact can transmit power normally and ensuring that the power connector can work properly.

[0007] Other objects and advantages of this utility model can be further understood from the technical features disclosed herein.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: a power connector, comprising: an insulating shell, a first power terminal, and a second power terminal. The insulating shell has a mating section and a mounting section, and a slot is provided in the mating section for inserting an insert. The first power terminal has a first fixing plate located in the mounting section and at least one first elastic arm located in the mating section; the first elastic arm forms a first contact; the first contact enters the slot; and the second power terminal is stacked on the side of the first power terminal facing the slot and is mounted together with the first power terminal in the insulating shell; the second power terminal has a second fixing plate stacked on the first fixing plate and at least one second elastic arm stacked on the first elastic arm; the second elastic arm forms a second contact; the second contact enters the slot; wherein the first contact and the second contact are arranged adjacent to each other along the depth direction of the slot, the first contact is used to make electrical contact with the insert first, and the second contact is used to make electrical contact with the insert only after the first contact has made electrical contact with the insert, and to lift the first contact away from the insert.

[0009] In one embodiment, the first contact and the second contact are at the same height along the height direction of the slot.

[0010] In one embodiment, the second contact is lower than the first contact in the height direction along the slot.

[0011] In one embodiment, both the first elastic arm and the second elastic arm are tilted toward the slot.

[0012] In one embodiment, the first elastic arm has a first fixed end and a first free end, and the first elastic arm is provided with a first inclined segment, a first bent segment and a first protrusion structure sequentially from the first fixed end to the first free end; wherein the first protrusion structure protrudes toward the slot, and the side of the first protrusion structure facing the slot forms the first contact point; the second elastic arm has a second fixed end and a second free end, and the second elastic arm is provided with a second inclined segment, a second bent segment and a second protrusion structure sequentially from the second fixed end to the second free end; wherein the second protrusion structure protrudes toward the slot, and the side of the second protrusion structure facing the slot forms the second contact point; wherein the first inclined segment and the second inclined segment are stacked; wherein the first bending angle of the first bent segment is greater than the second bending angle of the second bent segment; and wherein the second contact point is located on the side of the first inclined segment facing the slot.

[0013] In one embodiment, the first power terminal has a first connecting segment for connecting the first fixing plate and the first elastic arm, and the first power terminal is Z-shaped; the second power terminal has a second connecting segment for connecting the second fixing plate and the second elastic arm, and the second power terminal is Z-shaped; wherein the second connecting segment is stacked on the first connecting segment.

[0014] In one embodiment, the power connector further includes a first reinforcing piece, which is stacked and fixed to the side of the first power terminal opposite to the second power terminal; the first reinforcing piece covers a portion of the first elastic arm, the first connecting segment, and a portion of the first fixing plate.

[0015] In one embodiment, the first power terminal has a plurality of first resilient arms arranged in a row along the length of the slot; and the second power terminal has a plurality of second resilient arms arranged in a row along the length of the slot.

[0016] To achieve the above objectives, this utility model adopts the following technical solution: A power connector, comprising: an insulating shell, a first power terminal, a second power terminal, a third power terminal, and a fourth power terminal. The insulating shell has a mating section and a mounting section. A slot is provided in the mating section for inserting an insert. The slot has a first side and a second side, corresponding to the first conductive surface and the second conductive surface of the insert, respectively. The first power terminal has a first fixing plate located in the mounting section and at least one first elastic arm located in the mating section. The first elastic arm forms a first contact. The first contact enters the slot from the first side. The second power terminal is stacked on the side of the first power terminal facing the slot and is mounted together with the first power terminal in the insulating shell. The second power terminal has a second fixing plate stacked on the first fixing plate and at least one second elastic arm stacked on the first elastic arm. The second elastic arm forms a second contact. The second contact enters the slot from the first side. The third power terminal, independent of the first and second power terminals, has a third fixing plate located in the mounting section and at least one third elastic arm located in the mating section; the third elastic arm forms a third contact; the third contact enters the slot from the second side. The fourth power terminal, independent of the first and second power terminals and stacked on the side of the third power terminal facing the slot, is mounted together with the third power terminal in the insulating housing; the fourth power terminal has a fourth fixing plate stacked on the third fixing plate and at least one fourth elastic arm stacked on the third elastic arm; the fourth elastic arm forms a fourth contact; the fourth contact enters the slot from the second side. The first and second contacts are arranged adjacent to each other along the depth direction of the slot; the first contact is used to first make electrical contact with the first conductive surface of the insert, while the second contact is used to make electrical contact with the first conductive surface of the insert only after the first contact has made electrical contact with the insert, and to lift the first contact away from the insert. The third contact and the fourth contact are arranged adjacent to each other along the depth direction of the slot; the third contact is used to make electrical contact with the second conductive surface of the insert first, while the fourth contact is used to make electrical contact with the second conductive surface of the insert only after the third contact has made electrical contact with the insert, and to lift the third contact away from the insert.

[0017] In one embodiment, the first power terminal and the third power terminal have the same structure and are symmetrically arranged in the insulating housing; and the second power terminal and the fourth power terminal have the same structure and are symmetrically arranged in the insulating housing.

[0018] In one embodiment, the first power terminal further has a first connecting segment located between the first fixing plate and the first elastic arm; the second power terminal further has a second connecting segment stacked on the first connecting segment located between the second fixing plate and the second elastic arm; the third power terminal further has a third connecting segment located between the third fixing plate and the third elastic arm; and the fourth power terminal further has a fourth connecting segment stacked on the third connecting segment located between the fourth fixing plate and the fourth elastic arm.

[0019] In one embodiment, the first fixing plate, the second fixing plate, the third fixing plate, and the fourth fixing plate are parallel to each other; a plate spacing is formed between the second fixing plate and the fourth fixing plate; a connection spacing is formed between the second connecting segment and the fourth connecting segment; wherein the plate spacing is smaller than the connection spacing.

[0020] In one embodiment, the second elastic arm has a second fixed end and a second free end; the second contact is located near the second free end. The fourth elastic arm has a fourth fixed end and a fourth free end; the fourth contact is located near the fourth free end. A first gap is formed between the second fixed end and the fourth fixed end; a second gap is formed between the second contact and the fourth contact. The second gap is smaller than the first gap; the first gap is larger than the plate spacing.

[0021] In one embodiment, the first fixing plate is fixedly connected to at least one first power cable via a first welding plate; the first welding plate is fixed to the side of the first fixing plate opposite to the second fixing plate; the third fixing plate is fixedly connected to at least one second power cable via a second welding plate; the second welding plate is fixed to the side of the third fixing plate opposite to the fourth fixing plate.

[0022] In one embodiment, the power connector further includes a first reinforcing piece, which is stacked and fixed to the side of the first power terminal opposite to the second power terminal; the first reinforcing piece covers a portion of the first elastic arm, the first connecting segment, and a portion of the first fixing plate. The power connector further includes a second reinforcing piece, which is stacked and fixed to the side of the third power terminal opposite to the fourth power terminal; the second reinforcing piece covers a portion of the third elastic arm, the third connecting segment, and a portion of the third fixing plate.

[0023] Compared to existing technologies, this invention stacks the first and second power terminals together, allowing both power terminals to transmit power simultaneously. The first and second power terminals are respectively provided with first and second contacts arranged adjacent to each other along the depth direction of the slot. The first contact can make electrical contact with the insert first, so no arcing occurs when the second contact makes electrical contact with the insert. Simultaneously, since the first contact can be successfully lifted by the second contact when it makes electrical contact with the insert, a damaged first contact will not affect power transmission. Furthermore, although the first contact is lifted, because the first and second power terminals are stacked together, the first power terminal can still transmit power together with the second power terminal. Similarly, for the stacked third and fourth power terminals, by sacrificing the third contact to protect the fourth contact from arcing damage, the fourth contact can transmit power normally, ensuring the power connector functions properly. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of a power connector according to one embodiment of the present invention.

[0025] Figure 2 This is an exploded view of a power connector according to one embodiment of the present invention.

[0026] Figure 3 This is a cross-sectional structural diagram of a power connector according to one embodiment of the present invention.

[0027] Figure 4 This is a cross-sectional structural diagram of a power connector according to one embodiment of the present invention, which mainly shows the state of electrical contact between the first contact and an insert.

[0028] Figure 5 This is a cross-sectional structural diagram of a power connector according to one embodiment of the present invention, which mainly shows the state in which the second contact is electrically in contact with the insert and the first contact is lifted.

[0029] Figure 6 This is a schematic diagram of the structure of each power terminal in one embodiment of the present invention.

[0030] Figure 7 This is a schematic diagram showing the positional relationship of the power terminals in one embodiment of the present invention.

[0031] Figure 8 This is a schematic diagram showing the positional relationship between the power terminals and the power cables in one embodiment of the present invention.

[0032] The reference numerals in the above figures are explained as follows:

[0033] Power connector 1 Insulating housing 10

[0034] Docking section 1 Installation section 12

[0035] Slot 13 First side 130

[0036] Second side 131 First power terminal 20

[0037] First fixed plate 21 First elastic arm 22

[0038] First contact 220 First fixed end 221

[0039] First free end 222 First inclined segment 223

[0040] First bend segment 224, first bend angle 2240.

[0041] First protruding structure 225 First connecting segment 23

[0042] Second power terminal 30 Second fixing plate 31

[0043] Second elastic arm 32, second contact 320

[0044] Second fixed end 321 Second free end 322

[0045] Second inclined section 323 Second bending section 324

[0046] Second bending angle 3240°, second protruding structure 325°

[0047] Second connection section 33 Third power terminal 40

[0048] Third fixing plate 41 Third elastic arm 42

[0049] Third contact 420 Third connecting segment 43

[0050] Fourth power terminal 50 Fourth fixing plate 51

[0051] Fourth elastic arm 52, fourth contact 520

[0052] Fourth fixed end 521 Fourth free end 522

[0053] Fourth connecting section 53 First welding plate 60

[0054] First power cable 61 Second welding plate 62

[0055] Second power cable 63 First reinforcing plate 70

[0056] Second reinforcing piece 71, insert 9

[0057] First conductive surface 91 Second conductive surface 92

[0058] Depth direction A1 Length direction A2

[0059] Height direction A3, plate spacing D1

[0060] Connection spacing D2 First spacing D3

[0061] Second spacing D4 Detailed Implementation

[0062] The following description of the embodiments is with reference to the accompanying drawings, illustrating specific embodiments in which the present invention can be implemented. Directional terms used in this invention, such as "up," "down," "front," "back," "left," "right," "top," and "bottom," are merely for reference to the accompanying drawings. Therefore, the directional terms used are for illustration and understanding of the present invention, and not for limiting the present invention.

[0063] Please refer to Figures 1 to 3 As shown, the power connector 1 of this utility model includes at least an insulating housing 10, a first power terminal 20, and a second power terminal 30. The insulating housing 10 has a mating section 11 and a mounting section 12. A slot 13 is provided in the mating section 11 for a insertion member 9 (see...) Figure 4 Insertion. The first power terminal 20 is installed in the insulating housing 10. The first power terminal 20 has a first fixing plate 21 located in the mounting section 12 and at least one first elastic arm 22 located in the mating section 11. The first elastic arm 22 forms a first contact 220. The first contact 220 enters the slot 13. The second power terminal 30 is stacked on the side of the first power terminal 20 facing the slot 13 and is installed in the insulating housing 10 together with the first power terminal 20. The second power terminal 30 has a second fixing plate 31 stacked on the first fixing plate 21 and at least one second elastic arm 32 stacked on the first elastic arm 22. The second elastic arm 32 forms a second contact 320. The second contact 320 enters the slot 13. The first contact 220 and the second contact 320 are arranged adjacent to each other along the depth direction A1 of the slot 13.

[0064] Please refer to Figure 4 and Figure 5As shown, the first contact 220 is used to make electrical contact with the insert 9 first, while the second contact 320 is used to make electrical contact with the insert 9 only after the first contact 220 has made electrical contact with the insert 9, and to lift the first contact 220 away from the insert 9.

[0065] This utility model power connector 1 stacks the first power terminal 20 and the second power terminal 30 together, allowing both power terminals to transmit power together. The first power terminal 20 and the second power terminal 30 are respectively provided with first contacts 220 and second contacts 320 arranged adjacently along the depth direction A1 of the slot 13. Therefore, the first contact 220 can make electrical contact with the insert 9 first, which may generate an electric arc and damage the first contact 220. However, as the insert 9 continues to be inserted, the second contact 320 successfully makes electrical contact with the insert 9. At this time, since the first contact 220 has already made electrical contact with the insert 9, no electric arc will be generated when the second contact 320 makes electrical contact with the insert 9. Simultaneously, since the first contact 220 has been successfully lifted by the second contact 320, the damaged first contact 220 will not affect power transmission. Furthermore, although the first contact 220 is lifted, the first power terminal 20 can still transmit power together with the second power terminal 30 because the first power terminal 20 and the second power terminal 30 are stacked together.

[0066] Therefore, it can be seen that the power connector 1 of this utility model protects the second contact 320 from arc damage by sacrificing the first contact 220, thereby ensuring that the second contact 320 can make normal contact with the insert 9 and ensuring that the power connector 1 can work normally.

[0067] Please refer to Figure 2 As shown, the first power terminal 20 has a plurality of first elastic arms 22 arranged in a row along the length direction A2 of the slot 13; and the second power terminal 30 has a plurality of second elastic arms 32 arranged in a row along the length direction A2 of the slot 13. Both the first elastic arms 22 and the second elastic arms 32 are inclined towards the slot 13. Specifically, both the first elastic arms 22 and the second elastic arms 32 extend obliquely into the slot 13, such as... Figure 3 As shown.

[0068] Furthermore, such as Figure 6As shown, the first elastic arm 22 has a first fixed end 221 and a first free end 222. From the first fixed end 221 to the first free end 222, the first elastic arm 22 is sequentially provided with a first inclined section 223, a first bent section 224, and a first protrusion structure 225; wherein the first protrusion structure 225 faces the slot 13 (see...). Figure 3 The first protrusion 225 forms the first contact 220 on the side of the first protrusion structure 225 facing the slot 13.

[0069] Similarly, the second elastic arm 32 has a second fixed end 321 and a second free end 322, such as Figure 6 As shown, the second elastic arm 32 is provided with a second inclined section 323, a second bent section 324, and a second protrusion structure 325 sequentially from the second fixed end 321 to the second free end 322; wherein the second protrusion structure 325 faces the slot 13 (see...). Figure 3 The second protrusion 325 forms the second contact 320 on the side of the second protrusion structure 325 facing the slot 13.

[0070] This invention stacks the first elastic arm 22 and the second elastic arm 32, and arranges the first contact 220 and the second contact 320 adjacent to each other along the depth direction A1 of the slot 13, thereby ensuring that the second contact 320 can successfully lift the first contact 220 when it makes electrical contact with the insert 9.

[0071] It should be noted that, in this embodiment, the first contact 220 and the second contact 320 being arranged adjacently along the depth direction A1 of the slot 13 means that the straight line connecting the first contact 220 and the second contact 320 is parallel to the depth direction A1 of the slot 13; that is, the first contact 220 and the second contact 320 are arranged one after the other along the depth direction A1 of the slot 13.

[0072] Furthermore, the first contact 220 and the second contact 320 are aligned along the height direction A3 of the slot 13 (see...). Figure 3 The first contact 220 is at the same height. When the second contact 320 makes electrical contact with the insert 9, the first contact 220 is successfully lifted by the displacement of the second contact 320.

[0073] Of course, in other embodiments, the second contact 320 may be slightly lower than the first contact 220 along the height direction A3 of the slot 13, that is, the second contact 320 may extend further into the slot 13 than the first contact 220. When the second contact 320 makes electrical contact with the insert 9, the second contact 320 will generate more displacement, thereby successfully lifting the first contact 220.

[0074] like Figure 7 As shown, the first inclined segment 223 and the second inclined segment 323 are stacked. The first bending angle 2240 of the first bending segment 224 is greater than the second bending angle 3240 of the second bending segment 324, and the second contact 320 is located on the side of the first inclined segment 223 facing the slot 13. This allows the first contact 220 and the second contact 320 to be arranged front to back, and the heights of the first contact 220 and the second contact 320 are the same along the height direction A3 of the slot 13.

[0075] In one embodiment, the power connector 1 can be mounted to a server rack (not shown), and the insert 9 can be a busbar, such as... Figure 4 As shown, the insert 9 has a first conductive surface 91 and a second conductive surface 92 disposed opposite to each other, and is inserted into the power connector 1 to supply power to the server rack.

[0076] More specifically, such as Figure 2 , Figure 4 As shown, the slot 13 has a first side 130 and a second side 131, which correspond to the first conductive surface 91 and the second conductive surface 92 of the insert 9, respectively. The first contact 220 and the second contact 320 enter the slot 13 from the first side 130 and successively form electrical contact with the first conductive surface 91 of the insert 9.

[0077] Please refer to Figures 2 to 5As shown, in one embodiment, the power connector 1 further includes a third power terminal 40 and a fourth power terminal 50. The third power terminal 40 and the fourth power terminal 50 are stacked and independent of the stacked first power terminal 20 and the second power terminal 30. The third power terminal 40 has a third fixing plate 41 located in the mounting section 12 and at least one third elastic arm 42 located in the mating section 11; the third elastic arm 42 forms a third contact 420; the third contact 420 enters the slot 13 from the second side 131. The fourth power terminal 50 is stacked on the side of the third power terminal 40 facing the slot 13 and is installed together with the third power terminal 40 in the insulating housing 10; the fourth power terminal 50 has a fourth fixing plate 51 stacked on the third fixing plate 41 and at least one fourth elastic arm 52 stacked on the third elastic arm 42; the fourth elastic arm 52 forms a fourth contact 520; the fourth contact 520 enters the slot 13 from the second side 131. The third contact 420 and the fourth contact 520 are arranged adjacent to each other along the depth direction A1 of the slot 13. The third contact 420 is used to make electrical contact with the second conductive surface 92 of the insert 9 first, while the fourth contact 520 is used to make electrical contact with the second conductive surface 92 of the insert 9 only after the third contact 420 has made electrical contact with the insert 9, and to lift the third contact 420 away from the insert 9.

[0078] Therefore, it can be seen that the power connector 1 of this utility model protects the fourth contact 520 from arc damage by sacrificing the third contact 420, thereby ensuring that the fourth contact 520 can make normal contact with the insert 9 and ensuring that the power connector 1 can work normally.

[0079] More specifically, the first power terminal 20 and the third power terminal 40 are structurally identical and symmetrically arranged in the insulating housing 10; and the second power terminal 30 and the fourth power terminal 50 are structurally identical and symmetrically arranged in the insulating housing 10. For example, in this embodiment, the third contact 420 and the fourth contact 520 are at the same height along the height direction A3 of the slot 13. In other embodiments, the heights of the third contact 420 and the fourth contact 520 may be slightly different; for example, the fourth contact 520 may extend further into the slot 13 than the third contact 420.

[0080] Please refer to Figure 6 and Figure 7As shown, the first power terminal 20 has a first connecting segment 23 located between the first fixing plate 21 and the first elastic arm 22, used to connect the first fixing plate 21 and the first elastic arm 22. The first power terminal 20 is generally Z-shaped. The second power terminal 30 has a second connecting segment 33 stacked on the first connecting segment 23, used to connect the second fixing plate 31 and the second elastic arm 32. The second power terminal 30 is generally Z-shaped. The second connecting segment 33 is stacked on the first connecting segment 23.

[0081] Similarly, the third power terminal 40 has a third connecting segment 43 located between the third fixing plate 41 and the third elastic arm 42. The third power terminal 40 is generally Z-shaped. The fourth power terminal 50 has a fourth connecting segment 53 stacked on the third connecting segment 43, located between the fourth fixing plate 51 and the fourth elastic arm 52. The fourth power terminal 50 is generally Z-shaped. The fourth connecting segment 53 is stacked on the third connecting segment 43.

[0082] Please refer to Figure 7 As shown, the first fixing plate 21, the second fixing plate 31, the third fixing plate 41, and the fourth fixing plate 51 are parallel to each other; a plate spacing D1 is formed between the second fixing plate 31 and the fourth fixing plate 51; a connection spacing D2 is formed between the second connecting segment 33 and the fourth connecting segment 53; wherein, the plate spacing D1 is smaller than the connection spacing D2, thereby reserving installation space for the power cable. The connection spacing D2 mainly refers to the distance between the middle position of the second connecting segment 33 and the middle position of the fourth connecting segment 53.

[0083] Please refer to Figure 6 As shown, the second elastic arm 32 has a second fixed end 321 and a second free end 322, and the second contact point 320 is located near the second free end 322; the fourth elastic arm 52 has a fourth fixed end 521 and a fourth free end 522, and the fourth contact point 520 is located near the fourth free end 522; a first gap D3 is formed between the second fixed end 321 and the fourth fixed end 521 (see...). Figure 7 A second gap D4 is formed between the second contact 320 and the fourth contact 520 (see...). Figure 7 ); wherein the second spacing D4 is less than the first spacing D3; wherein the first spacing D3 is greater than the plate spacing D1.

[0084] Please refer to Figure 8As shown, the first fixing plate 21 is fixedly connected to at least one first power cable 61 via a first welding plate 60; the first welding plate 60 is fixed to the side of the first fixing plate 21 opposite to the second fixing plate 31. The third fixing plate 41 is fixedly connected to at least one second power cable 63 via a second welding plate 62; the second welding plate 62 is fixed to the side of the third fixing plate 41 opposite to the fourth fixing plate 51.

[0085] Please refer to Figure 6 and Figure 7 As shown, the power connector 1 further includes a first reinforcing piece 70, which is stacked and fixed to the side of the first power terminal 20 opposite to the second power terminal 30. The first reinforcing piece 70 covers a portion of the first elastic arm 22, the first connecting section 23, and a portion of the first fixing plate 21. The first reinforcing piece 70, the first power terminal 20, and the second power terminal 30 are fixed together and installed together in the insulating housing 10 by screw fastening. The first reinforcing piece 70 is used to enhance the structural strength of the first power terminal 20 and the second power terminal 30.

[0086] Similarly, the power connector 1 also includes a second reinforcing piece 71, which is stacked and fixed to the side of the third power terminal 40 opposite to the fourth power terminal 50; the second reinforcing piece 71 covers a portion of the third elastic arm 42, the third connecting section 43, and a portion of the third fixing plate 41. The second reinforcing piece 71, the third power terminal 40, and the fourth power terminal 50 are secured together and installed together in the insulating housing 10 by screws. The second reinforcing piece 71 is used to enhance the structural strength of the third power terminal 40 and the fourth power terminal 50.

[0087] In summary, the power connector 1 of this invention utilizes the first contact 220 and the third contact 420 to protect the second contact 320 and the fourth contact 520 respectively. Therefore, the second contact 320 and the fourth contact 520 will not generate an electric arc when they make electrical contact with the first conductive surface 91 and the second conductive surface 92 of the insert 9, thus preventing damage. This invention also utilizes the second contact 320 and the fourth contact 520 to lift the first contact 220 and the third contact 420 away from the insert 9, preventing damaged first contact 220 and third contact 420 from affecting power transmission. Simultaneously, although the first contact 220 and the third contact 420 are both lifted, because the first power terminal 20 and the second power terminal 30 are stacked together, and the third power terminal 40 and the fourth power terminal 50 are stacked together, the first power terminal 20 can still transmit power together with the second power terminal 30, and the third power terminal 40 can still transmit power together with the fourth power terminal 50.

Claims

1. A power connector comprising: An insulating housing, a first power terminal and a second power terminal, the insulating housing having a mating section and a mounting section, a slot being provided in the mating section for inserting an insert; characterized in that: the first power terminal has a first fixed plate located at the mounting section and at least one first elastic arm located at the mating section; the first elastic arm forms a first contact point; the first contact point enters the slot; and the second power terminal is stacked on a side of the first power terminal facing the slot and is commonly mounted with the first power terminal in the insulating housing; the second power terminal has a second fixed plate stacked on the first fixed plate and at least one second elastic arm stacked on the first elastic arm; the second elastic arm forms a second contact point; the second contact point enters the slot; wherein the first contact point and the second contact point are adjacently arranged along a depth direction of the slot, the first contact point is used to first electrically contact the insert, and the second contact point is used to electrically contact the insert after the first contact point electrically contacts the insert and lift the first contact point away from the insert.

2. The power connector of claim 1, characterized in that: in a height direction of the slot, the first contact point and the second contact point are of the same height.

3. The power connector of claim 1, characterized in that: in a height direction of the slot, the second contact point is lower than the first contact point.

4. The power connector of claim 1, characterized in that: the first elastic arm and the second elastic arm are both inclined toward the slot.

5. The power connector of claim 4, characterized in that: the first elastic arm has a first fixed end and a first free end, the first elastic arm is sequentially provided with a first inclined section, a first bending section and a first protruding structure from the first fixed end to the first free end; wherein the first protruding structure protrudes toward the slot, a side of the first protruding structure facing the slot forms the first contact point; the second elastic arm has a second fixed end and a second free end, the second elastic arm is sequentially provided with a second inclined section, a second bending section and a second protruding structure from the second fixed end to the second free end; wherein the second protruding structure protrudes toward the slot, a side of the second protruding structure facing the slot forms the second contact point; wherein the first inclined section and the second inclined section are stacked; wherein a first bending angle of the first bending section is greater than a second bending angle of the second bending section; and wherein the second contact point is located at a side of the first inclined section facing the slot.

6. The power connector of claim 5, characterized in that: the first power terminal has a first connecting section for connecting the first fixed plate and the first elastic arm, and the first power terminal is Z-shaped. The second power terminal has a second connecting section for connecting the second fixed plate and the second elastic arm, and the second power terminal is Z-shaped. The second connecting section is stacked on the first connecting section.

7. The power connector of claim 6, wherein: The power connector further comprises a first reinforcing sheet stacked on and fixed to a side of the first power terminal opposite to the second power terminal; the first reinforcing sheet covers a portion of the first elastic arm, the first connecting section, and a portion of the first fixed plate.

8. The power connector of claim 1, wherein: The first power terminal has a plurality of the first elastic arms arranged in a row along a length direction of the slot; and The second power terminal has a plurality of the second elastic arms arranged in a row along the length direction of the slot.

9. A power connector comprising: An insulating housing, a first power terminal, a second power terminal, a third power terminal, and a fourth power terminal, the insulating housing has a mating section and a mounting section, a slot is provided on the mating section for inserting an insert; the slot has opposite first and second sides corresponding to first and second conductive surfaces of the insert respectively; characterized in that: The first power terminal has a first fixed plate located at the mounting section and at least one first elastic arm located at the mating section; the first elastic arm forms a first contact; the first contact enters the slot from the first side; The second power terminal is stacked on a side of the first power terminal facing the slot and is commonly mounted with the first power terminal in the insulating housing; the second power terminal has a second fixed plate stacked on the first fixed plate and at least one second elastic arm stacked on the first elastic arm; the second elastic arm forms a second contact; the second contact enters the slot from the first side; The third power terminal is independent of the first power terminal and the second power terminal, the third power terminal has a third fixed plate located at the mounting section and at least one third elastic arm located at the mating section; the third elastic arm forms a third contact; the third contact enters the slot from the second side; and The fourth power terminal is independent of the first power terminal and the second power terminal, and is stacked on a side of the third power terminal facing the slot and is commonly mounted with the third power terminal in the insulating housing; the fourth power terminal has a fourth fixed plate stacked on the third fixed plate and at least one fourth elastic arm stacked on the third elastic arm; the fourth elastic arm forms a fourth contact; the fourth contact enters the slot from the second side; wherein the first contact and the second contact are disposed adjacent to each other along a depth direction of the socket; the first contact is configured to first make electrical contact with the first conductive surface of the insert, and the second contact is configured to make electrical contact with the first conductive surface of the insert after the first contact makes electrical contact with the insert and to lift the first contact away from the insert; and wherein the third contact and the fourth contact are disposed adjacent to each other along a depth direction of the socket; the third contact is configured to first make electrical contact with the second conductive surface of the insert, and the fourth contact is configured to make electrical contact with the second conductive surface of the insert after the third contact makes electrical contact with the insert and to lift the third contact away from the insert.

10. The power connector of claim 9, wherein: the first power terminal and the third power terminal are identical in structure and symmetrically disposed in the insulating housing; and the second power terminal and the fourth power terminal are identical in structure and symmetrically disposed in the insulating housing.

11. The power connector of claim 9, wherein: the first power terminal further has a first connecting segment between the first fixed plate and the first elastic arm; the second power terminal further has a second connecting segment stacked on the first connecting segment, between the second fixed plate and the second elastic arm; the third power terminal further has a third connecting segment between the third fixed plate and the third elastic arm; and the fourth power terminal further has a fourth connecting segment stacked on the third connecting segment, between the fourth fixed plate and the fourth elastic arm.

12. The power connector of claim 11, wherein: the first fixed plate, the second fixed plate, the third fixed plate and the fourth fixed plate are parallel to each other; a plate spacing is formed between the second fixed plate and the fourth fixed plate; a connecting spacing is formed between the second connecting segment and the fourth connecting segment; wherein the plate spacing is smaller than the connecting spacing.

13. The power connector of claim 12, wherein: the second elastic arm has a second fixed end and a second free end; the second contact is close to the second free end; the fourth elastic arm has a fourth fixed end and a fourth free end; the fourth contact is close to the fourth free end; a first spacing is formed between the second fixed end and the fourth fixed end; a second spacing is formed between the second contact and the fourth contact; wherein the second spacing is smaller than the first spacing; wherein the first spacing is larger than the plate spacing.

14. The power connector of claim 9, wherein: the first fixed plate is fixedly connected with at least one first power cable through a first welding plate; the first welding plate is fixed to a side of the first fixed plate opposite to the second fixed plate; the third fixed plate is fixedly connected with at least one second power cable through a second welding plate; The second welding plate is fixed to the third fixed plate on a side opposite to the fourth fixed plate.

15. The power connector of claim 11, wherein: The power connector further comprises a first reinforcing sheet laminated and fixed to a side of the first power terminal opposite to the second power terminal; the first reinforcing sheet covers a portion of the first elastic arm, the first connecting segment, and a portion of the first fixed plate; and The power connector further comprises a second reinforcing sheet laminated and fixed to a side of the third power terminal opposite to the fourth power terminal; the second reinforcing sheet covers a portion of the third elastic arm, the third connecting segment, and a portion of the third fixed plate.