Power supply connector and power supply terminal assembly

Abstract

The invention discloses a power connector and a power terminal assembly. The power supply connector comprises an insulation body and at least one pair of power supply terminal assemblies. In the pair of power supply terminal assemblies, each power supply terminal assembly comprises a first power supply terminal and a second power supply terminal which form an overlapped type so as to ensure that large current transmission can be carried out. A first airflow channel is formed between the first fixing plate of the first power supply terminal and the second fixing plate of the second power supply terminal, a second airflow channel is formed between the first conducting strip of the second power supply terminal and the second conducting strip of the second power supply terminal, and the second airflow channel is communicated with the first airflow channel. The power supply terminal assembly can realize optimal balance between large current transmission and low temperature rise.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and in particular to a power connector and a stacked power terminal assembly. Background Art

[0002] As the market demand for power connectors with higher current carrying capacity increases, it is very important to ensure the power integrity, thermal reliability, operational safety and electrical performance testing of high-current power connectors. In particular, the operating current of high-current power connectors is larger than that of conventional power connectors, and their temperature rise is also higher. Therefore, how to properly handle the large current generated in a smaller card edge space and achieve the best balance between the power supply and its thermal effects and the space design requirements in the PCB to ensure the safety performance of the final product has become an urgent problem to be solved.

[0003] The Chinese patent document with publication number CN110391528A discloses an electrical connector, which has an insulating body and a plurality of power terminal pairs fixed to the insulating body. In order to effectively improve the heating of the power terminal pairs, the contact portions of the two power terminals in each of the power terminal pairs are arranged alternately and cyclically in the transverse direction. However, dividing the front end of the power terminal into a plurality of narrow contact portions arranged alternately and cyclically will increase the impedance of the power terminal, which will not only affect the transmission of large currents, but also cause the power terminal to generate higher heat energy, thereby exceeding the temperature range that the electrical connector can withstand.

[0004] A Chinese patent document with publication number CN203250889U discloses a connector with a copper busbar mating structure, wherein the spring clip assembly includes two relative high-conductivity parts and two relative high-elasticity parts, wherein the high-elasticity parts cover the outside of the high-conductivity parts, thereby clamping the high-conductivity parts. The high-conductivity parts are made of highly conductive materials but lack elasticity; the high-elasticity parts are made of low-conductivity materials but have high elasticity. Through the combination of the two materials, good elasticity is achieved while achieving high conductivity. However, in this design, because the high-elasticity parts are unable to share the current for the high-conductivity parts due to their low conductivity, it is difficult for the spring clip assembly to achieve large current transmission; and because the fixed space between the spring clip assembly and the plastic body used to fix the spring clip assembly is limited, the heat of the high-conductivity parts cannot be dissipated into the air in time by simply relying on the contact heat dissipation of the high-elasticity parts.

[0005] Therefore, it is necessary to provide a safer and more reliable power connector and power terminal assembly to achieve an optimal balance between high current and low temperature rise. Summary of the invention

[0006] The main purpose of the present invention is to provide a power connector which adopts a stacked power terminal assembly to improve the current carrying capacity and reduce the thermal effect.

[0007] Another object of the present invention is to provide a power terminal assembly that can achieve an optimal balance between high current transmission and low temperature rise.

[0008] Other purposes and advantages of the present invention can be further understood from the technical features disclosed in the present invention.

[0009] To achieve the above-mentioned purpose, the present invention adopts the following technical solution: A power connector includes an insulating body and at least one pair of power terminal assemblies. The pair of power terminal assemblies are fixed in the insulating body and are used to dock with a docking element to transmit power; the pair of power terminal assemblies include two power terminal assemblies. Each power terminal assembly includes: a first power terminal and a second power terminal. The first power terminal has a first fixing plate, at least one first conductive sheet connected to the first fixing plate, and at least one first tail connected to the first fixing plate; the first conductive sheet has a first front face and a first back face that are arranged opposite to each other, and the first front face is used to electrically contact with the docking element. The second power terminal has a second fixed plate, at least one second conductive sheet connected to the second fixed plate, and at least one second tail connected to the second fixed plate; the second conductive sheet has a second front side and a second back side that are oppositely arranged, and the second front side faces the first back side; wherein, when the docking element is inserted into the power connector, the first front side of the first conductive sheet is in electrical contact with the docking element, and the front end of the second conductive sheet is crimped to the first back side of the first conductive sheet, so that the first conductive sheet and the second conductive sheet are electrically connected to transmit power together; a first airflow channel is formed between the first fixed plate and the second fixed plate; a second airflow channel is formed between the first conductive sheet and the second conductive sheet; and the second airflow channel is connected to the first airflow channel.

[0010] In one embodiment, the first power terminal is provided with a plurality of first conductive sheets arranged in parallel along a straight line; the second power terminal is provided with a plurality of second conductive sheets arranged in parallel along a straight line; wherein the number of the first conductive sheets is different from that of the second conductive sheets; wherein the width of the first conductive sheets is different from that of the second conductive sheets.

[0011] In one embodiment, when the first front side of the first conductive sheet is in electrical contact with the docking element, the front ends of at least two of the second conductive sheets can be crimped together to the first back side of one of the first conductive sheets; and the width of the second conductive sheet is smaller than the width of the first conductive sheet.

[0012] In one of the embodiments, when the first front side of the first conductive sheet is in electrical contact with the docking element, the front ends of the three second conductive sheets can be commonly crimped to the first back sides of the two first conductive sheets, and the second conductive sheet located in the middle position straddles the two first conductive sheets to simultaneously crimp the first back sides of the two first conductive sheets; the width of the second conductive sheet is smaller than the width of the first conductive sheet.

[0013] In one embodiment, when the first front side of the first conductive sheet is in electrical contact with the docking element, the front end of one of the second conductive sheets can be crimped to the first back sides of at least two of the first conductive sheets at the same time; the width of the second conductive sheet is greater than that of the first conductive sheet.

[0014] In one embodiment, the first air flow channel and the second air flow channel have different widths.

[0015] In one embodiment, the first conductive sheet has an inclined section connected to the first fixed plate, and the inclined section is bent and inclined toward the first conductive sheet so that the first conductive sheet is close to the second conductive sheet; the width of the second airflow channel is smaller than the width of the first airflow channel.

[0016] In one of the embodiments, in the pair of power terminal assemblies, the second power terminal of one power terminal assembly and the other power terminal assembly are located on the inner side, and the second back sides of the second power terminal face each other; and the first power terminal of one power terminal assembly and the other power terminal assembly are located on the outer side, and the first front sides of the first power terminal face back to back to each other; the first fixing plate and the second fixing plate are both upright, with the same width and height; the first fixing plate and the second fixing plate are parallel to each other.

[0017] In one of the embodiments, in the pair of power terminal assemblies, the first front side of the first power terminal of one power terminal assembly faces the first front side of the first power terminal of the other power terminal assembly to jointly clamp the docking element and form electrical contact with the docking element; the first fixing plate and the second fixing plate are both L-shaped and have the same width; the first fixing plate and the second fixing plate form a stacked type.

[0018] To achieve the above-mentioned purpose, the present invention also adopts the following technical solution: a power terminal assembly is used to dock with a docking element to transmit power, and the power terminal assembly includes: a first power terminal and a second power terminal. The first power terminal has a first fixed plate, at least one first conductive sheet connected to the first fixed plate, and at least one first tail connected to the first fixed plate; the first conductive sheet can be electrically contacted with the docking element; the second power terminal has a second fixed plate, at least one second conductive sheet connected to the second fixed plate, and at least one second tail connected to the second fixed plate. When the first conductive sheet is electrically contacted with the docking element, the front end of the second conductive sheet is pressed to the first conductive sheet, so that the first conductive sheet and the second conductive sheet form electrical conduction to transmit power together; wherein a first airflow channel is formed between the first fixed plate and the second fixed plate; a second airflow channel is formed between the first conductive sheet and the second conductive sheet; the second airflow channel is connected to the first airflow channel, and the width of the second airflow channel is different from that of the first airflow channel; wherein the width of the second conductive sheet is different from that of the first conductive sheet.

[0019] Compared with the prior art, the power connector of the present invention adopts a stacked power terminal assembly to improve the current carrying capacity, and the first power terminal and the second power terminal can make the current more evenly distributed, so that the power connector of the present invention is suitable for large current transmission. In addition, since a first airflow channel is formed between the corresponding first fixing plate and the second fixing plate, and a second airflow channel is formed between the corresponding first conductive sheet and the second conductive sheet, the second airflow channel is connected to the first airflow channel, thereby reducing the thermal effect and ensuring that the power terminal assembly can achieve the best balance between large current transmission and low temperature rise. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 FIG. 1 is a schematic diagram of the three-dimensional structure of the first embodiment of the power connector of the present invention.

[0021] Figure 2 for Figure 1 FIG. 1 is a schematic diagram of the exploded structure of the power connector of the present invention.

[0022] Figure 3 for Figure 2 A schematic diagram of the structure of one pair of power terminal assemblies is shown.

[0023] Figure 4 for Figure 3 A detailed schematic diagram of one of the power terminal assemblies is shown.

[0024] Figure 5FIG. 1 is a schematic diagram of the three-dimensional structure of a second embodiment of a power connector of the present invention.

[0025] Figure 6 for Figure 5 FIG. 1 is a schematic diagram of the exploded structure of the power connector of the present invention.

[0026] Figure 7 for Figure 6 A schematic diagram of the structure of one pair of power terminal assemblies is shown.

[0027] Figure 8 for Figure 7 A detailed schematic diagram of one of the power terminal assemblies is shown.

[0028] The reference numerals in the above drawings are described as follows:

[0029] Power connector 1, 1a Insulation body 10, 10a

[0030] Base 11 Docking port 12

[0031] Terminal channel 13 A pair of power terminal assemblies 20, 20a

[0032] Power terminal assembly 20-1, 20-2, 20-1a, 20-2a

[0033] First air flow channel 21 Second air flow channel 22

[0034] Third air flow channel 23 First power terminals 30, 30a

[0035] First fixing plate 31, 31a First conductive sheet 32, 32a

[0036] First front surface 320, 320a First back surface 321, 321a

[0037] Inclined sections 322, 322a Front sections 323, 322a

[0038] Outer curved surface segment 324 Inner curved surface segment 325

[0039] First straight section 326, 326a First tail section 33, 33a

[0040] Second power terminals 40, 40a Second fixing plates 41, 41a

[0041] Second conductive sheet 42, 42a Second front surface 420, 420a

[0042] Second back surface 421, 421a Front end 422, 422a

[0043] Second straight section 423, 423a Second tail section 43, 43a

[0044] Width D1, D2, D1a, D2a DETAILED DESCRIPTION

[0045] The following embodiments are described with reference to the attached drawings to illustrate specific embodiments of the present invention. Directional terms mentioned in the present invention, such as "upper", "lower", "front", "back", "left", "right", "top", "bottom", etc., are only with reference to the directions of the attached drawings. Therefore, the directional terms used are used to illustrate and understand the present invention, but are not used to limit the present invention.

[0046] The power connector of the present invention comprises an insulating body and at least one pair of power terminal assemblies; the pair of power terminal assemblies are fixed in the insulating body and used to dock with a docking element to transmit power. The docking element can be a docking terminal, such as a flat terminal, or an electronic card, such as a PCB board.

[0047] Different embodiments of the power connector of the present invention will be described below, and similar components in different embodiments are denoted by related similar component numbers.

[0048] Please refer to Figures 1 to 4 The first embodiment of the power connector 1 of the present invention is shown.

[0049] In the first embodiment, if Figure 1 As shown, the power connector 1 is an upright power connector 1, which can be quickly and stably installed on a circuit board (not shown), and its plugging direction is perpendicular to the circuit board.

[0050] Please refer to Figure 1 and Figure 2 As shown, the power connector 1 includes an insulating body 10 and two pairs of power terminal assemblies 20 fixed in the insulating body 10. The insulating body 10 is upright, and includes a base 11, a docking port 12 formed above the base 11, and two pairs of terminal channels 13 formed in the base 11. Each pair of power terminal assemblies 20 includes two power terminal assemblies 20-1 and 20-2, and the two power terminal assemblies 20-1 and 20-2 are fixed in the corresponding terminal channels 13 to prepare for docking with the docking element for transmitting power.

[0051] Please refer to Figure 3 As shown, in the pair of power terminal assemblies 20, each power terminal assembly 20-1 (20-2) includes: a first power terminal 30 and a second power terminal 40. The first power terminal 30 and the second power terminal 40 are stacked.

[0052] like Figure 4 As shown, the first power terminal 30 has a first fixing plate 31, at least one first conductive sheet 32 ​​connected to the first fixing plate 31, and at least one first tail portion 33 connected to the first fixing plate 31; the first conductive sheet 32 ​​has a first front face 320 and a first back face 321 arranged opposite to each other, and the first front face 320 is used to electrically contact the docking element. In the first embodiment, the first fixing plate 31 is upright, the first conductive sheet 32 ​​extends upward from the upper edge of the first fixing plate 31, and the first tail portion 33 extends downward from the lower edge of the first fixing plate 31, so that the entire first power terminal 30 is upright.

[0053] like Figure 4 As shown, the second power terminal 40 has a second fixing plate 41, at least one second conductive sheet 42 connected to the second fixing plate 41, and at least one second tail portion 43 connected to the second fixing plate 41; the second conductive sheet 42 has a second front face 420 and a second back face 421 that are oppositely arranged, the second front face 420 faces the first back face 321, and the second back face 421 faces away from the first back face 321. In the first embodiment, the second fixing plate 41 is upright, the second conductive sheet 42 extends upward from the upper edge of the second fixing plate 41, and the second tail portion 43 extends downward from the lower edge of the second fixing plate 41, so that the entire second power terminal 40 is upright.

[0054] When the docking element is inserted into the power connector 1, the first front face 320 of the first conductive sheet 32 ​​is in electrical contact with the docking element, and the front end 422 of the second conductive sheet 42 is crimped to the first back face 321 of the first conductive sheet 32, so that the first conductive sheet 32 ​​and the second conductive sheet 42 are electrically connected to transmit power together. Therefore, the use of the stacked power terminal assembly 20-1 (20-2) can improve the current carrying capacity.

[0055] Furthermore, in the first embodiment, before the docking element is inserted into the power connector 1, the front end 422 of the second conductive sheet 42 has been crimped to the first back side 321 of the first conductive sheet 32; after the docking element is inserted into the power connector 1, the front end 422 of the second conductive sheet 42 continues to be crimped to the first back side 321 of the first conductive sheet 32 ​​to transmit power together.

[0056] However, in other embodiments, before the docking element is inserted into the power connector 1, the front end 422 of the second conductive sheet 42 is not crimped to the first back side 321 of the first conductive sheet 32, that is, the two are not in contact or connected; and after the docking element is inserted into the power connector 1, the docking element forces the first conductive sheet 32 ​​to slightly elastically deflect toward the second conductive sheet 42, so that the front end 422 of the second conductive sheet 42 can be crimped to the first back side 321 of the first conductive sheet 32 ​​to transmit power together.

[0057] It can be seen that the present invention does not limit whether the second conductive sheet 42 forms contact or connection with the first conductive sheet 32 ​​before the docking element is inserted into the power connector 1; it only requires that the second conductive sheet 42 and the first conductive sheet 32 ​​can form contact or connection after the docking element is inserted into the power connector 1.

[0058] like Figure 3 As shown, a first airflow channel 21 is formed between the first fixing plate 31 and the second fixing plate 41; a second airflow channel 22 is formed between the first conductive sheet 32 ​​and the second conductive sheet 42; and the second airflow channel 22 is connected to the first airflow channel 21. Therefore, the use of a stacked power terminal assembly 20-1 (20-2) can reduce thermal effects, and the power terminal assembly 20-1 (20-2) can achieve an optimal balance between high current transmission and low temperature rise.

[0059] The first power terminal 30 of the present invention is provided with a plurality of first conductive sheets 32 arranged in parallel along a straight line. For example, in the first embodiment, the first power terminal 30 is provided with four first conductive sheets 32 arranged in parallel from left to right.

[0060] The second power terminal 40 of the present invention is provided with a plurality of second conductive sheets 42 arranged in parallel along a straight line. For example, in the first embodiment, the second power terminal 40 is provided with eight second conductive sheets 42 arranged in parallel from left to right.

[0061] In the first embodiment, every two second conductive sheets 42 correspond to one first conductive sheet 32. That is, when the first front surface 320 of the first conductive sheet 32 ​​is in electrical contact with the docking element, the front ends 422 of the two second conductive sheets 42 can be pressed together to the first back surface 321 of one first conductive sheet 32. According to the first embodiment, it is conceivable that in other embodiments, the power terminal assembly 20-1 (20-2) can be configured such that every three or more second conductive sheets 42 correspond to one first conductive sheet 32.

[0062] In general, the number of the first conductive sheet 32 ​​and the second conductive sheet 42 may be different; the width of the first conductive sheet 32 ​​and the second conductive sheet 42 may be different, and the width refers to the width of the first conductive sheet 32 ​​and the second conductive sheet 42. Figure 3 For example, the number of the second conductive sheets 42 is greater than the number of the first conductive sheets 32, and the width of the second conductive sheets 42 is less than the width of the first conductive sheets 32. Even, the width of the second conductive sheets 42 is less than half the width of the first conductive sheets 32. With this design, the present invention can form a third airflow channel 23 (see reference numerals) between the second conductive sheets 42. Figure 3 ), thereby further reducing the thermal effect. In addition, the uniform configuration of the plurality of second conductive sheets 42 can play a role in uniformly sharing the large current.

[0063] Please refer to Figure 3 As shown, the first air flow channel 21 and the second air flow channel 22 have different widths.

[0064] In detail, Figure 4 As shown, the first conductive sheet 32 ​​has an inclined section 322 connected to the first fixing plate 31, and the inclined section 322 is bent and inclined toward the second conductive sheet 42, so that the first conductive sheet 32 ​​is close to the second conductive sheet 42. Therefore, the width D2 of the second airflow channel 22 is smaller than the width D1 of the first airflow channel 21. The widths D1 and D2 refer to the widths along the Figure 3 The distance B in the front-to-back direction.

[0065] Please refer to Figure 4 As shown, the first conductive sheet 32 ​​has a front section 323, and the front section 323 is bent toward the second conductive sheet 42, so as to be curved. The front section 323 has an outer curved surface section 324 located at the first front side 320 and an inner curved surface section 325 located at the first back side 321. The front end 422 of the second conductive sheet 42 is bent toward the first conductive sheet 32, so as to be hook-shaped. When the first conductive sheet 32 ​​is in electrical contact with the docking element, the front end 422 of the second conductive sheet 42 is pressed against the inner curved surface section 325 of the first conductive sheet 32, so that the first conductive sheet 32 ​​and the second conductive sheet 42 are electrically connected to transmit power together.

[0066] Please refer to Figure 4 As shown, the first conductive sheet 32 ​​further has a first straight section 326, which is located between the front section 323 and the inclined section 322, and the first conductive sheet 32 ​​is electrically connected to the docking element at the first straight section 326. The second conductive sheet 42 has a second straight section 423, which corresponds to and is substantially parallel to the first straight section 326.

[0067] Please refer to Figure 3 As shown, in the pair of power terminal assemblies 20, the second power terminal 40 of one power terminal assembly 20-1 and the other power terminal assembly 20-2 are located on the inner side of the pair of power terminal assemblies 20, and the second back side 421 of the second power terminal 40 faces each other; while the first power terminal 30 of one power terminal assembly 20-1 and the other power terminal assembly 20-2 are located on the outer side of the pair of power terminal assemblies 20, and the first front side 320 of the first power terminal 30 faces away from each other. In other words, the pair of power terminal assemblies 20 are arranged in the manner of the first power terminal 30, the second power terminal 40, the second power terminal 40, and the first power terminal 30.

[0068] In addition, if Figure 4 As shown, the width of the first fixing plate 31 and the height of the second fixing plate 41 along the left-right direction and the up-down direction are the same, and both are upright; the first fixing plate 31 and the second fixing plate 41 are parallel to each other. The first power terminal 30 is also provided with a plurality of the first tail portions 33 arranged along a straight line. The first power terminal 30 is also provided with a plurality of the second tail portions 43 arranged along a straight line. The first tail portion 33 is parallel to the second tail portion 43.

[0069] The following will be combined Figures 5 to 8 FIG. 2 shows a second embodiment of the power connector 1 according to the present invention.

[0070] In the second embodiment, if Figure 5 As shown, the power connector 1 may also be a right-angle power connector 1a, which can be installed on the circuit board, and its plugging direction is parallel to the circuit board.

[0071] Please refer to Figure 5 and Figure 6 As shown, the power connector 1a includes an insulating body 10a and six pairs of power terminal assemblies 20a fixed in the insulating body 10a. The insulating body 10a is in a right angle shape. Each pair of power terminal assemblies 20a includes two power terminal assemblies 20-1a and 20-2a, and the two power terminal assemblies 20-1a and 20-2a can be docked with the docking element to transmit power. In addition, in the second embodiment, the power connector 1a also includes a base (not shown) for fixing the power terminal assemblies 20-1a and 20-2a and a plurality of signal terminals (not shown) fixed in the insulating body 10a and the base.

[0072] Please refer to Figure 7As shown, in the pair of power terminal assemblies 20a, each power terminal assembly 20-1a (20-2a) includes: a first power terminal 30a and a second power terminal 40a. The first power terminal 30a and the second power terminal 40a are stacked.

[0073] like Figure 8 As shown, the first power terminal 30a is L-shaped, and has an L-shaped first fixing plate 31a, at least one first conductive sheet 32a connected to the first fixing plate 31a and extending horizontally, and at least one first tail 33a connected to the first fixing plate 31a and extending vertically. The first conductive sheet 32a has a first front face 320a and a first back face 321a that are arranged opposite to each other, and the first front face 320a is used to electrically contact the docking element.

[0074] like Figure 8 As shown, the second power terminal 40a is L-shaped, and has an L-shaped second fixing plate 41a, at least one second conductive sheet 42a connected to the second fixing plate 41a and extending horizontally, and at least one second tail 43a connected to the second fixing plate 41a and extending vertically. The second conductive sheet 42a has a second front side 420a and a second back side 421a that are arranged opposite to each other, and the second front side 420a faces the first back side 321a.

[0075] When the first front side 320a of the first conductive sheet 32a is in electrical contact with the docking element, the front end 422a of the second conductive sheet 42a can be crimped to the first back side 321a of the first conductive sheet 32a, so that the first conductive sheet 32a and the second conductive sheet 42a are electrically connected to transmit power together. Therefore, the use of the stacked power terminal assembly 20-1a (20-2a) can improve the current carrying capacity.

[0076] It should be noted here that the present invention does not limit whether the second conductive sheet 42a forms contact or connection with the first conductive sheet 32a before the docking element is inserted into the power connector 1a; it only requires that the second conductive sheet 42a forms contact or connection with the first conductive sheet 32a after the docking element is inserted into the power connector 1a.

[0077] like Figure 7As shown, a first airflow channel 21a is formed between the first fixing plate 31a and the second fixing plate 41a; a second airflow channel 22a is formed between the first conductive sheet 32a and the second conductive sheet 42a; and the second airflow channel 22a is connected to the first airflow channel 21a. Therefore, the use of a stacked power terminal assembly 20-1a (20-2a) can reduce thermal effects, and the power terminal assembly 20-1a (20-2a) can achieve an optimal balance between high current transmission and low temperature rise.

[0078] In the second embodiment, if Figure 8 As shown, the first power terminal 30a of the present invention is provided with two first conductive sheets 32a arranged in parallel along a straight line. The second power terminal 40a of the present invention is provided with three second conductive sheets 42a arranged in parallel along a straight line. Therefore, the three second conductive sheets 42a correspond to the two first conductive sheets 32a. That is to say, when the first front face 320a of the first conductive sheet 32a is in electrical contact with the docking element, the front ends 422a of the three second conductive sheets 42a can be pressed together to the first back faces 321a of the two first conductive sheets 32a, and the second conductive sheet 42a located in the middle position straddles the two first conductive sheets 32a to simultaneously press the first back faces 321a of the two first conductive sheets 32a. Through this design, the current passing through the first power terminal 30a and the second power terminal 40a can be distributed more evenly, so as to be suitable for large current transmission.

[0079] Of course, in other embodiments, the power terminal assembly 20-1a (20-2a) can also be configured such that: every two first conductive sheets 32a correspond to one second conductive sheet 42a. When the first front surface 320a of the first conductive sheet 32a is in electrical contact with the docking element, the front end 422a of one of the second conductive sheets 42a can be pressed together to the first back surfaces 321a of the two first conductive sheets 32a; at this time, the edge of the second conductive sheet 42a is greater than the width of the first conductive sheet 32a.

[0080] In the second embodiment, the first conductive sheet 32a has an inclined section 322a, and the inclined section 322a is bent and inclined toward the second conductive sheet 42a, so that the first conductive sheet 32a is close to the second conductive sheet 42a. Therefore, the width D2a of the second airflow channel 22 is smaller than the width D1a of the first airflow channel 21a. It can be seen that the second airflow channel 22a can be formed between the first conductive sheet 32a and the second conductive sheet 42a, and the two can form a flat structure to reduce the card edge space at the front end of the connector.

[0081] also, Figure 8 As shown, the first conductive sheet 32a has a curved front section 323a, and the front end 422a of the second conductive sheet 42a is also curved. When the first conductive sheet 32a is in electrical contact with the docking element, the front end 422a of the second conductive sheet 42a is pressed against the front section 323a of the first conductive sheet 32a, so that the first conductive sheet 32a and the second conductive sheet 42a are electrically connected to transmit power together.

[0082] Please refer to Figure 8 As shown, the first conductive sheet 32a further has a linear first straight section 326a, and the second conductive sheet 42a has a second straight section 423a, which corresponds to and is substantially parallel to the first straight section 326a.

[0083] Please refer to Figure 7 As shown, in the pair of power terminal assemblies 20a, the first front face 320a of the first power terminal 30a of one power terminal assembly 20-1a faces the first front face 320a of the first power terminal 30a of the other power terminal assembly 20-2a, so as to be able to clamp the docking element together and form an electrical contact with the docking element. More specifically, the pair of power terminal assemblies 20a are arranged in the manner of the second power terminal 40a, the first power terminal 30a, the first power terminal 30a, and the second power terminal 40a.

[0084] In summary, the power connector 1, 1a of the present invention adopts a stacked power terminal assembly to improve the current carrying capacity, and the first power terminal and the second power terminal can make the current more evenly distributed, so as to be suitable for large current transmission. In addition, since a first airflow channel is formed between the corresponding first fixing plate and the second fixing plate, and a second airflow channel is formed between the corresponding first conductive sheet and the second conductive sheet, the second airflow channel is connected to the first airflow channel, thereby reducing the thermal effect and ensuring that the power terminal assembly can achieve the best balance between large current transmission and low temperature rise.

Claims

1. A power connector, comprising an insulating body and at least one pair of power terminal assemblies; the pair of power terminal assemblies are fixed in the insulating body and are used to dock with a docking element to transmit power; the pair of power terminal assemblies comprises two power terminal assemblies; characterized in that: Each power terminal assembly includes: A first power terminal, comprising a first fixing plate, at least one first conductive sheet connected to the first fixing plate, and at least one first tail connected to the first fixing plate; the first conductive sheet has a first front surface and a first back surface that are oppositely arranged, and the first front surface is used to electrically contact the docking element; A second power terminal, comprising a second fixing plate, at least one second conductive sheet connected to the second fixing plate, and at least one second tail connected to the second fixing plate; the second conductive sheet having a second front side and a second back side oppositely disposed, the second front side facing the first back side; When the docking element is inserted into the power connector, the first front surface of the first conductive sheet is in electrical contact with the docking element, and the front end of the second conductive sheet is crimped to the first back surface of the first conductive sheet, so that the first conductive sheet and the second conductive sheet are electrically connected to transmit power together; Wherein, a first air flow channel is formed between the first fixing plate and the second fixing plate; Wherein, a second air flow channel is formed between the first conductive sheet and the second conductive sheet; Wherein, the second air flow channel is connected to the first air flow channel.

2. The power connector according to claim 1, wherein: The first power terminal is provided with a plurality of the first conductive sheets arranged in parallel along a straight line; The second power terminal is provided with a plurality of second conductive sheets arranged in parallel along a straight line; Wherein, the number of the first conductive sheets is different from that of the second conductive sheets; The first conductive sheet and the second conductive sheet have different widths.

3. The power connector according to claim 2, wherein: When the first front surface of the first conductive sheet is in electrical contact with the docking element, the front ends of at least two of the second conductive sheets can be commonly crimped to the first back surface of one of the first conductive sheets; The width of the second conductive sheet is smaller than the width of the first conductive sheet.

4. The power connector according to claim 2, wherein: When the first front surface of the first conductive sheet is in electrical contact with the docking element, the front ends of the three second conductive sheets can be commonly crimped to the first back surfaces of the two first conductive sheets, and the second conductive sheet located in the middle position straddles the two first conductive sheets to simultaneously crimp to the first back surfaces of the two first conductive sheets; The width of the second conductive sheet is smaller than the width of the first conductive sheet.

5. The power connector according to claim 2, wherein: When the first front surface of the first conductive sheet is in electrical contact with the docking element, the front end of one of the second conductive sheets can be simultaneously crimped to the first back surfaces of at least two of the first conductive sheets; The width of the second conductive sheet is greater than the width of the first conductive sheet.

6. The power connector according to claim 1, wherein: The first air flow channel and the second air flow channel have different widths.

7. The power connector according to claim 6, wherein: The first conductive sheet has an inclined section connected to the first fixing plate, and the inclined section is bent and inclined toward the first conductive sheet, so that the first conductive sheet is close to the second conductive sheet; The width of the second air flow channel is smaller than the width of the first air flow channel.

8. The power connector according to claim 1, wherein: In the pair of power terminal assemblies, the second power terminal of one power terminal assembly and the other power terminal assembly are located on the inner side, and the second back sides of the second power terminal face each other; and the first power terminal of one power terminal assembly and the other power terminal assembly are located on the outer side, and the first front sides of the first power terminal face away from each other; The first fixing plate and the second fixing plate are both upright, have the same width and height; The first fixing plate and the second fixing plate are parallel to each other.

9. The power connector according to claim 1, wherein: In the pair of power terminal assemblies, the first front surface of the first power terminal of one power terminal assembly faces the first front surface of the first power terminal of the other power terminal assembly to jointly clamp the docking element and form electrical contact with the docking element; The first fixing plate and the second fixing plate are both L-shaped and have the same width; The first fixing plate and the second fixing plate are formed in a stacked manner.

10. A power terminal assembly, used to dock with a docking element to transmit power, the power terminal assembly comprising: A first power terminal having a first fixing plate, at least one first conductive sheet connected to the first fixing plate, and at least one first tail connected to the first fixing plate; The first conductive sheet is capable of electrically contacting the docking element; a second power terminal having a second fixing plate, at least one second conductive sheet connected to the second fixing plate, and at least one second tail connected to the second fixing plate; Wherein, when the first conductive sheet is in electrical contact with the docking element, the front end of the second conductive sheet is pressed against the first conductive sheet, so that the first conductive sheet and the second conductive sheet are electrically connected to transmit power together; Wherein, a first air flow channel is formed between the first fixing plate and the second fixing plate; Wherein, a second air flow channel is formed between the first conductive sheet and the second conductive sheet; Wherein, the second air flow channel is connected to the first air flow channel, and the width of the second air flow channel is different from that of the first air flow channel; The second conductive sheet has a different width from the first conductive sheet.

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