TWM482178U - Electrical connector - Google Patents

Description

Electrical connector

This creation relates to a connector, and in particular to an electrical connector capable of carrying current.

Generally, after the terminal and the insulative housing are assembled into an electrical connector, the temperature rise of the electrical connector during the current carrying current causes the heat to accumulate and is not easy to dissipate heat efficiently. Therefore, most of the conventional electrical connectors are provided with signal terminals and power terminals. In the case of separation, that is, the power supply terminal is biased to one side and the signal terminal is biased to the other side, or the signal terminals are arranged at the center position and the power terminals are arranged at both sides, so that the practical application is applied. It can only be limited to a specific line layout and cannot be extended.

Therefore, how to improve the above problems through structural design has become an important issue that this business person wants to solve. Therefore, the creators of this case are concentrating on research and cooperating with the application of academic theory, and propose a reasonable and effective design. The creation of the above questions.

The main purpose of the present invention is to provide an electrical connector that has a better heat dissipation effect when compared to a conventional electrical connector when carrying current, and can expand the application surface of the circuit layout in practical applications.

In order to achieve the above, the present invention provides an electrical connector, comprising: an insulative housing having a mating surface, a rear end surface on the opposite side of the mating surface, and the rear end surface from the mating surface a socket formed by the recess, and a plurality of terminal slots formed along the length direction of the insulating body from the rear end surface toward the insertion surface, and the And the terminal channel is connected to the insertion slot; and at least one terminal row has a plurality of terminals, and the terminals comprise a plurality of power terminals and a plurality of non-power terminals, wherein the power terminals and the non-power terminals respectively The power supply terminals and the non-power supply terminals are arbitrarily spaced from one side of the terminal row to the other side of the terminal row along the longitudinal direction of the insulating body.

In summary, the electrical connector provided in the embodiment of the present invention has a plurality of power terminals and a plurality of non-power terminals arranged in the terminal column at intervals from one side of the terminal column to the other side of the terminal column. The heat source generated by the dispersible electrical connector carrying a large current does not concentrate the heat source on either side, and can form a parallel or series-parallel line layout with the installed circuit board in accordance with different temperature environments and actual current demands, thereby enabling Expand the series-parallel application surface of the electrical connector.

In order to further understand the features and technical contents of the present invention, please refer to the following detailed description and drawings of the present invention. However, the drawings are only for reference and explanation, and are not intended to limit the scope of the present invention. .

100, 100a, 100b, 100c‧‧‧ electrical connectors

1‧‧‧Insulating body

11‧‧‧Interface

12‧‧‧ rear end face

13‧‧‧ Socket slot

14, 14'‧‧‧ terminal channel

15, 15' ‧ ‧ grooves

151‧‧‧ inner side wall

152, 152'‧‧‧ end wall

1521, 1521 '‧‧ ‧ gap

153‧‧‧The wall

2, 2'‧‧‧ terminal column

20, 20'‧‧‧ terminals

21, 21'‧‧‧ Sockets

211, 211 '‧‧‧ free end

2111‧‧‧ side edge

22, 22‧‧‧ Fixed Department

23, 23' ‧ ‧ welding department

P‧‧‧Power terminal

P1‧‧‧ touch points

T‧‧‧Non-power terminal

G‧‧‧ Grounding terminal

G1‧‧‧ touch points

S‧‧‧ signal terminal

S1‧‧‧ touch points

L‧‧‧ Length direction

C‧‧‧Drop direction

W‧‧‧ terminal width

D1‧‧‧ groove width

FIG. 1 is a perspective view of the electrical connector of the present invention.

2 is a top plan view of the electrical connector of the present invention.

Figure 3 is a cross-sectional view taken along line A-A of Figure 1.

4 is a cross-sectional view of another perspective of FIG. 3.

FIG. 5 is a partially enlarged schematic view of the block B of FIG. 2. FIG.

FIG. 6 is a cross-sectional view (1) of another embodiment of the electrical connector of the present invention.

Figure 7 is a cross-sectional view of another perspective of Figure 6.

FIG. 8 is a cross-sectional view (2) of another embodiment of the electrical connector of the present invention.

Figure 9 is a cross-sectional view (3) of another embodiment of the present electrical connector.

Please refer to FIG. 1 to FIG. 5 , which is an embodiment of the present invention. The embodiment is an electrical connector 100 . The electrical connector 100 includes an insulative housing 1 and two terminal columns 2, 2' respectively disposed on the upper and lower halves of the insulative housing 1, and two terminal columns. 2, 2' are substantially parallel to each other and each has a plurality of terminals 20, 20'. The insulative housing 1 is of an elongated shape defining a length direction L and a mating direction C of the butted mating electrical connector, and the length direction L and the mating direction C are substantially perpendicular to each other. The insulative housing 1 has a mating face 11 and a rear end face 12 on opposite sides. The insulative housing 1 is recessed from the mating surface 11 toward the rear end surface 12 to form a latching slot 13 , and the insulative housing 1 is formed with two rows of terminal slots 14 , 14 along the length direction L from the rear end surface 12 toward the mating surface 11 . ', and the two rows of terminal channels 14, 14' are respectively connected to the insertion slots 13, and the two terminal rows 2, 2' are respectively passed through the two rows of terminal channels 14, 14'.

Further, each of the terminals 20, 20' is integrally formed into a shape and has a plug portion 21, 21', a fixing portion 22, 22', and a solder portion 23, 23', respectively. Each of the terminals 20, 20' is respectively disposed in the corresponding terminal channel 14, 14', and the insertion portions 21, 21' of each of the terminals 20, 20' respectively protrude in the insertion slot 13, the fixing portion 22, 22' is fitted and fixed to the inner walls of the terminal channels 14, 14', respectively, and the welded portions 23, 23' respectively protrude outside the insulating body 1. It should be noted that the electrical connector 100 illustrated in this embodiment is an orthogonal connector. Therefore, the length of the soldering portion 23 in which the terminal 20 is bent and extended by the fixing portion 22 is longer than the terminal 20' by the fixing portion 22'. The length of the bent portion 23' is extended. In other embodiments, the electrical connector 100 can be a vertical connector, that is, the length of the solder portion 23 of the terminal 20 and the solder portion 23 of the terminal 20'. The length of 'will be equal, and it can be said that the configuration of the terminal 20 and the terminal 20' may be identical.

The detailed construction of the insulative housing 1 will be described in detail later. For ease of understanding and explanation, the following description only introduces one terminal row 2' of the two terminal columns 2, 2', and introduces the relative relationship between the terminal row 2' and the insulating body 1 in a timely manner.

The terminal row 2 ′ has a plurality of terminals 20 ′, and the terminals 20 ′ include a plurality of power terminals P and a plurality of non-power terminals T, and the power terminals P and the non-power terminals T are along the insulating body 1 . The longitudinal direction L is arbitrarily arranged at one side of the terminal row 2' to the other side of the terminal row 2'. That is, the power terminals P can be aligned with the non-power terminals T along the length direction L of the insulative housing 1 to The arrangement of TPTTPTTPTTPTTP... is shown. Furthermore, the non-power terminal T of the embodiment may be at least one of a ground terminal G and a signal terminal S. In other words, the power terminals P in the terminal row 2 ′ and the ground terminals G and the signal terminals S are arbitrarily arranged along the longitudinal direction L of the insulative housing 1 on one side of the terminal row 2 ′ to the terminal. On the other side of column 2', the arrangement of GPSGPSGPSGPSGP... can be presented (as shown in Figure 3). In the actual application, the limitation is not limited to the above, and the terminal row 2 ′ is not limited to only the ground terminal G as the beginning or the end, and the power terminal P or the signal terminal S may not be limited to the beginning or the end. Therefore, the arrangement of the terminals 20' of the terminal row 2' of the present invention is different from that of the conventional terminal array. The terminal arrangement is such that the power terminal is biased toward the terminal column and the ground or signal terminal is biased to the other side of the terminal column. In the manner of arranging the signal terminals in the center of the terminal row and the power terminals being arranged on both sides of the terminal column, the terminal arrangement of the conventional terminal columns is a separate arrangement, and can only be limited to a specific application in practical applications. Line layout.

The following describes an application example of one of the creations. When the electrical connector 100 is mounted on the circuit board and docked with the mating electrical connector (not shown), the terminal string 2' passes through a current of 23.8 amps as required, and each of the terminal blocks 2' The current carrying capacity of P is only 1.4 amps, so that the seventeen terminals of the terminal column 2' for carrying current can be connected in parallel with the circuit board to achieve a current requirement of 23.8 amps. The power terminals P and the non-power terminals T are arranged in a row along the longitudinal direction L of the insulative housing 1 to disperse a heat source generated when a large current is carried, without concentrating the heat source on one side, and can be combined with different temperatures. The environmental and actual current requirements form a parallel or series-parallel line layout with the mounted circuit board, thereby expanding the series-parallel application surface of the electrical connector 100.

In a variant embodiment, referring to FIG. 6 and FIG. 7, each ground terminal G, each power terminal P, and each signal terminal S of the electrical connector 100a respectively have a contact with a pair of electrical connectors. And a contact point G1, P1, S1 of the electrical conduction, and a contact point of the contact point G1 of the grounding terminal G with the power supply terminal P, respectively The contact point S1 of the P1 and the signal terminals S are arranged in the front-rear direction in the plugging direction C, that is, the grounding terminals G are not aligned with the power terminals P, and the grounding terminals G and the signals are The terminals S are not aligned, and the contact point G1 of each ground terminal G is closer to the plug-in surface 11 than the contact point S2 of each signal terminal S and the contact point P1 of each power terminal P, and each power terminal The contact point P1 of P is closer to the plug-in surface 11 than the contact point S1 of each signal terminal S, that is, the contact point G1 of the ground terminal G is closest to the plug-in surface 11, and the contact point P1 of the power terminal P is next. The contact point S1 of the signal terminal S is at the end.

Therefore, when the electrical connector 100a is docked with the mating connector, the contact point G1 of the grounding terminal G is first electrically connected to the grounding terminal of the docking electrical connector to form a grounding protection. When the contact point P1 of the power terminal P is slower, it is electrically connected to the power terminal of the docking electrical connector to form a power circuit, and the contact point S1 of the signal terminals S is finally connected to the signal of the docking electrical connector. The terminals are in contact and electrically conductive for signal transmission. Conversely, when the electrical connector 100a is detached from the docking electrical connector, the grounding terminals G will eventually detach from the grounding terminal of the docking electrical connector. Therefore, the ground terminals G of the electrical connector 100a of the present embodiment are designed to be first mate/last break, so that the electrical connector 100a and the docking electrical connector can be unexpectedly inserted during hot swapping. The surge is safely diverted to the ground to prevent damage to the connected equipment.

In another modified embodiment, referring to FIG. 8, the contact point G1 of each ground terminal G of the electrical connector 100b is compared with the contact point S1 of each signal terminal S and the contact point P1 of each power terminal P. Close to the plug-in surface 11, and the contact point S1 of each signal terminal S is closer to the plug-in surface 11 than the contact point P1 of each power terminal P, that is, the contact point G1 of the ground terminal G is closest to the plug-in surface 11 The contact point S1 of the signal terminal S is next, and the contact point P1 of the power terminal P is the end. In other words, the contact point G1 of the grounding terminals G of the electrical connector 100b of the present embodiment is respectively disposed at a contact point P1 with the power terminals P1 and a contact point S1 of the signal terminals S in the plugging direction C. So that the ground terminals G are also first contacted and then detached (first Mate/last break) design.

In another variation, please refer to FIG. 9, the contact point G1 of each ground terminal G of the electrical connector 100c is in contact with the contact point P1 of each power terminal P and each signal terminal S. The point S1 is close to the plug-in surface 11, and the contact point P1 of each power terminal P and the contact point S1 of each signal terminal S are arranged in alignment, that is, the contact point G1 of the ground terminal G is closest to the plug-in. The surface 11 and the contact point P1 of the power terminal P and the contact point S1 of the signal terminal are next. In other words, the contact point G1 of the grounding terminals G of the electrical connector 100c of the present embodiment is respectively disposed at a contact point P1 of the power terminals P1 and a contact point S1 of the signal terminals S in the plugging direction C. Therefore, the ground terminals G are also designed to be first mate/last break.

Referring to FIG. 1 to FIG. 5, in the embodiment, in order to enable the electrical connector 100 to have better heat dissipation when carrying a large current, the insulative housing 1 is formed with two rows of grooves along its length L. 15, 15', the two rows of grooves 15, 15' respectively correspond to the two terminal rows 2, 2', and the two rows of grooves 15, 15' are disposed opposite each other and above and below the insertion slot 13 And the groove of the two rows of grooves 15, 15 ′ communicates with the insertion groove 13 , so that the insertion groove 13 communicates with the air outside the insulating body 1 through the groove of the two rows of grooves 15 , 15 ′ , and the insulating body 1 The external air is preferably an atmospheric pressure, so that the electrical connector 100 can be thermally convected in the up and down direction through the two rows of grooves 15, 15' to enhance the air convection effect. Moreover, the temperature rise of the power terminal P in the two terminal columns 2, 2' at a higher carrying current density causes the heat to continuously accumulate, and the positions of the grooves 15, 15' correspond to the power terminals, respectively. The contact point P1 of P (shown in FIG. 4) causes the heat generated by the contact point P1 of the power terminals P to quickly escape to the air formed by the corresponding grooves 15, 15' to convect to The outside of the electrical connector 100 further reduces the temperature of the power terminals P such that the power terminals P can carry a higher current carrying density.

Hereinafter, a terminal 20 of the terminal row 2 will be described as an example of a relative relationship between a recess 15 in the row of recesses 15 and the terminal 20 is a power terminal P. Such as As shown in Figures 3, 4 and 5, the recess 15 has two opposite inner side walls 151, an end wall 152 adjacent to the inner side walls 151, and a peripheral wall 153 (shown in Figure 3), and the inner side walls of the recess 15 The distance between 151 defines the groove width D1 of the groove 15 (as shown in FIG. 5), and the groove width D1 must be less than 0.50 mm in order to comply with the UL power application safety specification. In this embodiment, the groove The width D1 is actually only 0.35mm, which can be tested by the Joint Finger Probe in the UL power supply application safety, which can effectively avoid the fear of metal foreign matter falling or human contact causing a short circuit. In detail, the end wall 152 of the recess 15 forms a notch 1521 that communicates with the insertion slot 13 such that the insertion slot 13 communicates with the notch 1521 of the recess 15 and communicates with the air outside the insulative housing 1, and the terminal 20 The free end 211 extends from the notch 1521 into the recess 15 and overlaps the end wall 152 of the recess 15. In more detail, the free end 211 of the terminal 20 has two side edges 2111 on opposite sides, and the distance between the side edges 2111 defines the terminal width W of the terminal 20. The two sides 2111 of the free end 211 of the terminal 20 respectively face the inner side walls 151 of the recess 15 so that the two side edges 2111 of the free end 211 of the terminal 20 are respectively spaced apart from the inner side walls 151 of the recess 151, thereby The two side edges 2111 of the free end 211 of the terminal 20 are respectively maintained at a sufficient distance from the inner side walls 151 of the recess 15 (as shown in Fig. 5). Therefore, when the electrical connector 100 and the matching electrical connector are in the process of hot plugging, if the discharge current is too large, the terminal 20 is melted, blackened or irregularly protruded near the position of the free end 211 thereof, and the terminal 20 is transmitted through the terminal 20 The two side edges 2111 of the free end 211 are respectively spaced apart from the inner side walls 151 of the recess 15 to have sufficient seating space without affecting the actuation and interference of the terminal 20 in the up and down direction perpendicular to the longitudinal direction L. Features. Moreover, when the terminal 20 is actuated in the up and down direction, it is possible to avoid interference with the inner side walls 151 of the recess 15 due to the skew of the terminal 20, thereby causing a problem of jamming, and also avoiding the eversion of the terminal 20 due to the eversion of the terminal 20 The two inner side walls 151 of the groove 15 form an interference, causing a problem of jamming. Moreover, in the high voltage (HI-POT) test, the side edges 2111 of the free end 211 of the terminal 20 are respectively spaced apart from the inner side walls 151 of the recess 15 and maintained at a sufficient distance to allow two adjacent terminals. Creepage distance measured along the surface of the insulating body 1 between the free ends 211 of 20 (Creepage The distance) will be large, so that the two adjacent terminals 20 will not be caught by the creepage distance (Creepage Distance), and can withstand a large high voltage test.

In summary, the electrical connector provided in the embodiment of the present invention has a plurality of power terminals and a plurality of non-power terminals arranged in a row through the terminal array at a distance from one side of the terminal column to the other side of the terminal column. The distributed electrical connector carries a heat source generated at a large current without concentrating the heat source on one side, and can expand the series-parallel application surface of the circuit layout of the electrical connector and the circuit board. Furthermore, a plurality of grooves are formed in the longitudinal direction of the insulating body, and the grooves are disposed above and below and opposite to the upper and lower sides of the insertion groove, so that the insertion groove can communicate with the insulating body through the grooves. External air to enhance air convection. And the positions of the grooves correspond to the contact points of the power terminals, so that the temperature rise of the power terminals when the current is carried can be reduced by the air convection formed by the grooves, so that the power terminals Can carry higher current carrying density.

However, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the patent protection of the present invention. Therefore, the equivalent technical changes that are made by using the present specification and the contents of the drawings are included in the scope of the present invention. Combined with Chen Ming.

100‧‧‧Electrical connector

1‧‧‧Insulating body

11‧‧‧Interface

12‧‧‧ rear end face

13‧‧‧ Socket slot

14, 14'‧‧‧ terminal channel

15, 15' ‧ ‧ grooves

151‧‧‧ inner side wall

152‧‧‧End wall

1521‧‧ ‧ gap

153‧‧‧The wall

2, 2'‧‧‧ terminal column

20, 20'‧‧‧ terminals

21, 21'‧‧‧ Sockets

211'‧‧‧Free end

22, 22'‧‧‧ Fixed Department

23, 23' ‧ ‧ welding department

G‧‧‧ Grounding terminal

P‧‧‧Power terminal

S‧‧‧ signal terminal

T‧‧‧Non-power terminal

L‧‧‧ Length direction

C‧‧‧Drop direction

Claims (13)

An electrical connector includes: an insulative housing having a mating surface, a rear end surface on an opposite side of the mating surface, and a latching groove recessed from the mating surface toward the rear end surface, and a plurality of terminal channels formed from the rear end surface toward the insertion surface along the length direction of the insulative housing, and the terminal channels are connected to the insertion slot; and at least one terminal row having a plurality of terminals And the terminals include a plurality of power terminals and a plurality of non-power terminals, wherein the power terminals and the non-power terminals are respectively disposed in the corresponding terminal channels, and the power terminals and the non-power terminals Arranged arbitrarily along the longitudinal direction of the insulative housing from one side of the terminal row to the other side of the terminal row. The electrical connector of claim 1, wherein the non-power terminal is at least one of a ground terminal and a signal terminal. The electrical connector of claim 2, wherein each of the grounding terminals, each of the signal terminals, and each of the power terminals respectively have a contact point for electrically contacting a pair of electrical connectors And the contact points of the grounding terminals and the contact points of the signal terminals and the contact points of the power terminals are arranged in a front-rear direction in a plugging direction. The electrical connector of claim 3, wherein the contact point of each of the ground terminals is closer to the mating surface than the contact point of each of the signal terminals and the contact point of each of the power terminals, and each of the contacts The contact point of the power terminal is closer to the plug surface than the contact point of each of the signal terminals. The electrical connector of claim 3, wherein the contact point of each of the ground terminals is closer to the mating surface than the contact point of each of the signal terminals and the contact point of each of the power terminals, and each of the contacts The contact point of the signal terminal is closer to the plug surface than the contact point of each of the power terminals. The electrical connector of claim 3, wherein the contact point of each of the ground terminals is closer to a contact point of each of the signal terminals and a contact point of each of the power terminals The plug-in surface, wherein the contact point of each of the power terminals is aligned with the contact point of each of the signal terminals. The electrical connector of any one of claims 2 to 6, wherein the insulative housing is formed with a plurality of grooves along its length, and the grooves are disposed opposite to each other and above the insertion slot. And the grooves are connected to the insertion groove, so that the insertion groove communicates with the air outside the insulating body through the grooves. The electrical connector of claim 7, wherein the locations of the recesses correspond to contact points of the power terminals. The electrical connector of claim 7, wherein each of the recesses has two opposite inner sidewalls, an end wall adjacent to the inner sidewalls and a peripheral wall, and between the inner sidewalls of each recess The distance defines the groove width of each groove. The electrical connector of claim 8, wherein each of the recesses has two opposite inner sidewalls, an end wall adjacent to the inner sidewalls, and a peripheral wall, and between the inner sidewalls of each recess The distance defines the groove width of each groove. The electrical connector of claim 9, wherein the end wall of each of the grooves is formed with a notch such that the insertion groove communicates with the notch of each of the grooves, and the free end of each of the terminals is Correspondingly, the notch protrudes into the corresponding groove and overlaps the corresponding end wall of the groove. The electrical connector of claim 11, wherein the groove has a groove width of 0.35 mm. The electrical connector of claim 11, wherein the free ends of the respective terminals have opposite side edges on opposite sides, and the two side edges of the free ends of the respective terminals respectively face the two of the corresponding grooves The inner side wall is such that the two side edges of the free end of each of the terminals are respectively spaced apart from the two inner side walls of the corresponding groove.