CN204793248U - Power supply connector and conductive terminal thereof - Google Patents

Abstract

The utility model provides a power supply connector and conductive terminal thereof, power supply connector includes a metal casing, a plurality of conductive terminal and a plurality of contact. The metal shell is provided with a first end and a second end which are opposite, and the first end and the second end are communicated to form an accommodating space. Each conductive terminal is used for clamping a plurality of cables and is respectively provided with a clamping part, a cylindrical part and a sleeving part. The clamping portion and the sleeving portion are respectively located at two ends of the cylindrical portion, wherein the sleeving portion further has at least one groove. Each contact element penetrates through the accommodating space from the first end and is inserted into the sleeving part, wherein the outer surface of each contact element is in contact with the inner wall surface of each sleeving part. Thus, the resistance value is reduced and the current is transmitted more efficiently in a surface contact manner.

Description

Power supply connector and its conductive terminals

technical field

The utility model relates to a connector and its conductive terminal, in particular to a power supply connector and its conductive terminal which can effectively reduce the resistance value.

Background technique

At present, there are many slots inside the shell structure of the desktop computer for plugging in various computer parts, wherein a power supply, a main board, a hard disk, etc. are installed in the computer shell. After the above components are placed in the computer case, the power output line of the power supply is branched to the above computer devices to supply power. Due to the higher power of the high-wattage power supply, more equipment can be supported, resulting in more power cords attached to the power connector, making the wiring connections in the entire computer case more messy.

At present, there is a power cord configuration method in which the power supply is modularized in the market, that is, a plurality of connection slots are arranged on the casing of the power supply. According to the needs of consumers, the power cables of uniform specifications are used to electrically plug the sockets and peripheral components on the power supply, so that the power cables that are not in use can be removed and stored first. Once consumers want to install more peripheral components in the computer case, they can adjust the required power cords and plug them into the sockets of the power supply to solve the problem of messy traditional lines.

However, the existing male-female plug-in structure of the power supply connector adopts point contact. That is to say, the outer surface of the plug has at least one pair of protrusions, which are in contact with the protrusions on the inner wall of the socket to form a point-to-point electrical contact. Therefore, the existing plug-in method makes the contact area insufficient, and the resistance value often rises to cause a temperature rise, which may cause the connector to burn out.

In view of this, how to improve the shortcomings of the existing power supply connector is the direction for the designers of the utility model to study and improve.

Utility model content

The purpose of the utility model is to provide a power supply connector and its conductive terminal which can reduce the resistance value and transmit the current more efficiently by means of surface contact.

To achieve the above purpose, the utility model provides a power supply connector connected to at least one cable, characterized in that the power supply connector includes:

A metal shell, having a first end and a second end opposite to each other, the first end and the second end communicate to form an accommodating space;

At least one conductive terminal is used to clamp the cable. The conductive terminal has a clamping part, a cylindrical part and a set part. The clamping part and the set part are respectively located at two ends of the cylindrical part. , wherein the sleeve portion has at least one groove; and

At least one contact piece passes through the accommodating space from the first end and is inserted into the sleeve portion, wherein at least part of the outer surface of the contact piece is in surface contact with the inner wall of the sleeve portion.

The power supply connector also includes:

A wire-fixing block, accommodated in the second end, with a plurality of partitions at both ends of the wire-fixing block, and a positioning groove between any two adjacent partitions for positioning the conductive terminal .

In the power supply connector, there is a blocking wall inside the metal shell, and the power supply connector also includes:

A waterproof washer is adjacent to the wire fixing block and abuts against the retaining wall. The waterproof washer has at least one perforation, and the conductive terminal passes through the perforation.

The power supply connector further includes an insulating sleeve, the insulating sleeve includes a bottom wall, and the second end and the wire-fixing block respectively abut against the bottom wall.

In the power supply connector, the second end has a clamping hole, and at least one of the partitions has a corresponding clamping point provided on one end surface, and is clamped and fixed in the clamping hole.

In the power supply connector, the cylindrical portion further includes a pair of barbs and a pair of protrusions, the waterproof gasket is in contact with one end of the barbs, and the wire fixing block is arranged between the waterproof gasket and the between the bottom wall.

In the power supply connector, each of the contact pieces further includes a root portion, and the root portion is sleeved on the sleeve portion, and a portion of each of the contact pieces protrudes from the first end to the outside of the metal shell.

In the power supply connector, the diameter of the root portion is greater than or equal to the diameter of the sleeve portion.

In the power supply connector, the conductive terminal further has a covering portion connected to the clamping portion, and the covering portion has a pair of extension arms for fixing a core wire of the cable.

According to the power supply connector, the diameter of the cylindrical portion is greater than or equal to the diameter of the sleeve portion, and at least one dent is protruded from the surface of the clamping portion.

According to the power supply connector, the outer surface of the first end also has a fool-proof portion.

In order to achieve the above purpose, the technical solution adopted by the utility model also provides: a conductive terminal connected to at least one cable, characterized in that the conductive terminal includes:

a cylindrical part;

a clamping part, connected to one side of the cylindrical part and having at least one protrusion for clamping the cable;

a covering part connected to the clamping part and having a pair of arms for fixing the cable; and

A set part is connected to the other side of the cylindrical part, and the set part has at least one groove.

In the conductive terminal, the cylindrical portion further includes a pair of barbs adjacent to the sleeve portion and a pair of protrusions adjacent to the clamping portion.

In the conductive terminal, each of the barbs and each of the protrusions are arranged symmetrically to each other.

In the above-mentioned conductive terminal, the diameter of the cylindrical portion is greater than or equal to the diameter of the sleeve portion.

As for the conductive terminal, the at least one groove extends from one side of the cylindrical portion to the end edge of the sleeve portion.

In the above-mentioned conductive terminal, the cable further includes a core wire, and the covering part and the clamping part respectively clamp the core wire.

Compared with the prior art, the utility model adopting the above technical solution has the advantage that the clamping part and the sleeve part are respectively located at two ends of the cylinder part, wherein the sleeve part further has at least one groove. Each contact piece passes through the accommodating space from the first end and is inserted into the sleeve portion, wherein the outer surface of each contact piece is in contact with the inner wall surface of each sleeve portion. In such a way of surface contact, the resistance value is reduced and the current is transmitted more efficiently.

Description of drawings

Figure 1 is an exploded view of the power supply connector of the present invention;

Fig. 2 is a perspective view of the power supply connector of the present invention;

Fig. 3 is a diagram of an embodiment of the power supply connector of the present invention plugged into a socket;

Fig. 4 is a cross-sectional view of the power supply connector of the present invention;

Fig. 5 is a perspective view of the conductive terminal of the present invention.

Description of reference signs: 10 power supply; 20 socket (female end); 30 cable; 32 core wire; 50 docking part; 100 power supply connector (male end); 110 metal shell; 112 first end; 114 second end; 116 fool-proof part; 118 retaining wall; 120 accommodation space; 130 contact piece; 140 root part; 150 card hole; 200 conductive terminal; Holding part; 222 convex mark; 230 cladding part; 232 extension arm; 240 sleeve setting part; 250 groove; 300 insulating sleeve; 310 bottom wall; 500 waterproof gasket; 510 perforation.

Detailed ways

The detailed description and technical content of the present utility model are described below with drawings, but the attached drawings are only for reference and illustration, and are not intended to limit the present utility model.

As shown in Figures 1 to 4, the utility model provides a power supply connector 100 (ie, the male end), connected to a plurality of cables 30, and connected to a socket 20 (ie, the female end) of a power supply 10 ) are electrically connected. As shown in FIGS. 1 and 2 , the power supply connector 100 includes a metal shell 110 , a plurality of conductive terminals 200 and a plurality of contacts 130 . The metal shell 110 has a first end 112 and a second end 114 opposite to each other, and the first end 112 and the second end 114 communicate to form an accommodating space 120 . In addition, the metal shell 110 further includes a foolproof portion 116 and a plurality of locking holes 150 formed on the second end 114 .

Please also refer to FIG. 3 , the anti-fooling portion 116 is preferably protruded from the outer surface of the first end 112 , and the socket 20 forms a connecting portion 50 corresponding to the anti-fooling portion 116 . In other words, the protruding fool-proof portion 116 is inserted into the mating portion 50 recessed in the socket 20 . However, in other different embodiments, the shape of the fool-proof portion 116 corresponds to that of the docking portion 50 and can also be interchanged. Therefore, the arrangement of the fool-proof portion 116 and the docking portion 50 of the present invention makes the power supply connector 100 of the present invention have the effect of preventing wrong insertion (fool-proof).

Each conductive terminal 200 is used to clamp a plurality of cables 30 , and has a cylindrical portion 210 , a clamping portion 220 and a set portion 240 respectively. The clamping portion 220 and the sleeve portion 240 are respectively located at two ends of the cylindrical portion 210 , wherein the sleeve portion 240 has at least one groove 250 . Each contact piece 130 passes through the accommodating space 120 from the first end 112 and is inserted into the sleeve portion 240 , wherein at least part of the outer surface of each contact piece 130 is in contact with the inner wall surface of each sleeve portion 240 .

Each contact piece 130 further includes a root portion 140 , each root portion 140 is inserted into each sleeve portion 240 , and each contact piece 130 partially protrudes out of the first end 112 . As shown in FIG. 1 , the diameter of each root portion 140 is greater than or equal to the diameter of the sleeve portion 240 , so that the outer surface of the root portion 140 is in surface contact with the inner wall of the sleeve portion 240 . Further, the cylindrical portion 210 and the sleeve portion 240 are annular, and the root portion 140 of the contact piece 130 is cylindrical, and the outer surface of the root portion 140 of the contact piece 130 is in surface contact with the inner wall surface of the sleeve portion 240 . With the design of at least one groove 250 , the sleeve portion 240 has a certain degree of elasticity when in contact with the root portion 140 , so the surface contact design of the present invention can effectively reduce the resistance value and make the current flow more smoothly and efficiently.

The insulating sleeve 300 covers the metal casing 110 along the second end 114 and exposes a portion of the first end 112 . In the embodiment shown in FIG. 1 and FIG. 4 , the conductive terminal 200 further has a covering portion 230 connected to the clamping portion 220 , wherein each clamping portion 220 can clamp a core wire 32 of each cable 30 . The covering part 230 has a pair of extension arms 232 for fixing a core wire 32 of each cable 30 . The diameter of the cylindrical portion 210 is preferably greater than or equal to the diameter of the sleeve portion 240 , and at least one protrusion 222 is protruded from the surface of the clamping portion 220 . The design of the protrusion 222 can enhance the fastening strength of the core wire 32 of the cable 30 .

In this embodiment, a wire fixing block 400 accommodated in the second end 114 and a waterproof gasket 500 adjacent to the wire fixing block 400 are further included. Both ends of the wire fixing block 400 have a plurality of partitions 410 respectively, and a plurality of positioning grooves 420 for positioning the conductive terminals 210 are included between each partition 410 . In the embodiment shown in Fig. 1 and Fig. 2, a clamping point 430 protrudes from the end surface of part of the partition 410, and the clamping point 430 can be clamped and fixed in the clamping hole 150 of the metal shell 110, so that each conductive terminal 200 can 400 can be firmly fixed to the metal casing 110 .

In addition, as shown in FIG. 4 , the metal housing 110 also has a blocking wall 118 abutted by the waterproof gasket 500 , and the waterproof gasket 500 respectively forms a plurality of through holes 510 through which the conductive terminals 200 pass. The waterproof gasket 500 is in contact with one end of the barb portion 212 , and the wire fixing block 400 is disposed between the waterproof gasket 500 and the bottom wall 310 . The cylindrical portion 210 further includes a pair of barbs 212 and a pair of protrusions 214 . The pair of barbed parts 212 are disposed close to the sleeve part 240 relative to the pair of protrusions 214 , and one end thereof can be abutted by the waterproof gasket 500 . In addition, the pair of protrusions 214 are disposed close to the clamping portion 220 relative to the pair of barbs 212 , and can be used to fasten the wire fixing block 400 .

As shown in the figure, this embodiment also includes an insulating sleeve 300, the insulating sleeve 300 covers the metal shell 110 along the second end 114 and exposes part of the first end 112, so that the user can take or plug in the connection device 100, and at the same time have the effect of insulation.

Please also refer to FIG. 5, another broad implementation of the present invention also provides a conductive terminal 200, including a cylindrical part 210, a clamping part 220, a covering part 230 and a set of Section 240. The clamping portion 220 is connected to one side of the cylindrical portion 210 and includes at least one protrusion 222 for clamping a cable 30 . The covering part 230 is connected to the clamping part 220 and has a pair of extension arms 232 for fixing the cables 30 . The sleeve portion 240 is connected to the other side of the cylindrical portion 210 , and the sleeve portion 240 has at least one groove 250 .

In this embodiment, both the cylindrical portion 210 and the sleeve portion 240 are preferably ring-shaped. The cylindrical portion 210 further includes a pair of barbs 212 adjacent to the sleeve portion 240 and a pair of protrusions 214 adjacent to the clamping portion 220 . Each barb portion 212 and each protrusion 214 are preferably arranged symmetrically to each other. The diameter of the cylindrical portion 210 is preferably larger than the diameter of the sleeve portion 240 . However, in other embodiments, the diameter of the cylindrical portion 210 may also be equal to the diameter of the sleeve portion 240 .

In addition, the groove 250 preferably extends from one side of the cylindrical portion 210 to the end edge of the sleeve portion 240 . The grooves 250 shown in the figure are preferably a pair and symmetrically formed on both sides of the sleeve portion 240 to provide moderate elasticity for the mating contact pieces (not shown). Both the covering part 230 and the clamping part 220 can respectively clamp the core wire 32 of the cable 30 so as to transmit current (power) to each contact 130 .

The above description is only illustrative, rather than restrictive, of the present utility model. Those of ordinary skill in the art understand that many modifications, changes or equivalents can be made without departing from the spirit and scope defined in the claims. But all will fall within the protection scope of the present utility model.

Claims (17)

1. A power supply connector connected to at least one cable, characterized in that the power supply connector includes: A metal shell, having a first end and a second end opposite to each other, the first end and the second end communicate to form an accommodating space; At least one conductive terminal is used to clamp the cable. The conductive terminal has a clamping part, a cylindrical part and a set part. The clamping part and the set part are respectively located at two ends of the cylindrical part. , wherein the sleeve portion has at least one groove; and At least one contact piece passes through the accommodating space from the first end and is inserted into the sleeve portion, wherein at least part of the outer surface of the contact piece is in surface contact with the inner wall of the sleeve portion. 2. The power supply connector according to claim 1, further comprising: A wire-fixing block, accommodated in the second end, with a plurality of partitions at both ends of the wire-fixing block, and a positioning groove between any two adjacent partitions for positioning the conductive terminal . 3. The power supply connector according to claim 2, wherein the metal shell has a retaining wall inside, and the power supply connector further comprises: A waterproof washer is adjacent to the wire fixing block and abuts against the retaining wall. The waterproof washer has at least one perforation, and the conductive terminal passes through the perforation. 4 . The power supply connector as claimed in claim 3 , further comprising an insulating sleeve, the insulating sleeve comprising a bottom wall, and the second end and the wire fixing block respectively abut against the bottom wall. 5. The power supply connector according to claim 3, wherein the second end has a card hole, and a corresponding card point is provided on one end surface of at least one partition, and is fixed on the card hole. 6. The power supply connector according to claim 4, wherein the cylindrical portion further comprises a pair of barbs and a pair of projections, the waterproof gasket is in contact with one end of the barbs, and the The wire fixing block is disposed between the waterproof gasket and the bottom wall. 7. The power supply connector according to claim 1, wherein each of the contact pieces further comprises a root portion, the root portion is sheathed in the sleeve portion, and a portion of each of the contact pieces protrudes from the first end. out of the metal case. 8. The power supply connector as claimed in claim 7, wherein a diameter of the root portion is greater than or equal to a diameter of the sleeve portion. 9. The power supply connector according to claim 1, wherein the conductive terminal further has a covering portion connected to the clamping portion, and the covering portion has a pair of extension arms for fixing the cable of a core wire. 10. The power supply connector according to claim 1, wherein the diameter of the cylindrical portion is greater than or equal to the diameter of the sleeve portion, and at least one dent is protruded from the surface of the clamping portion . 11. The power supply connector as claimed in claim 1, wherein the outer surface of the first end further has a foolproof portion. 12. A conductive terminal connected to at least one cable, characterized in that the conductive terminal comprises: a cylindrical part; a clamping part, connected to one side of the cylindrical part and having at least one protrusion for clamping the cable; a covering part connected to the clamping part and having a pair of arms for fixing the cable; and A set part is connected to the other side of the cylindrical part, and the set part has at least one groove. 13 . The conductive terminal according to claim 12 , wherein the cylindrical portion further comprises a pair of barbs adjacent to the sleeve portion and a pair of protrusions adjacent to the clamping portion. 14 . 14 . The conductive terminal according to claim 13 , wherein each of the barbs and each of the bumps are arranged symmetrically to each other. 15. The conductive terminal according to claim 12, wherein a diameter of the cylindrical portion is greater than or equal to a diameter of the sleeve portion. 16. The conductive terminal as claimed in claim 12, wherein the at least one groove extends from one side of the cylindrical portion to an end edge of the sleeve portion. 17 . The conductive terminal according to claim 12 , wherein the cable further comprises a core wire, and the covering part and the clamping part respectively clamp the core wire.