TWI393301B - Power connector - Google Patents

Description

Power connector

The present invention relates to a power connector, and more particularly to a power connector for connecting to a cable.

For a conventional technique related to the present invention, reference is made to U.S. Patent No. 5,122,081, issued to Jun. Cable at the end of the conductive terminal. The end of the conductive terminal is provided with a crimping portion having an opening. When assembling, the conductive layer of the cable is first placed in the opening of the crimping portion, and then the special crimping device and the stamping crimping portion of the tool are used to finally make the crimping portion of the conductive layer of the cable and the conductive terminal. A fixed connection is reached. However, this type of assembly requires additional crimping equipment, which is costly and difficult to assemble. In addition, once the conductive terminals are crimped to the cable, it is difficult to separate the two and the reusability is low.

Therefore, it is necessary to design an improved structure power connector to solve the above technical problem.

The technical problem to be solved by the present invention is to provide a power connector that is easy to assemble.

In order to solve the above technical problem, the present invention adopts the following technical solution: a power connector includes an insulative housing, a plurality of power terminals mounted on the insulative housing, and a plurality of cables connected to the power terminals, wherein the insulative housing is provided with a mating surface The opposite end surface opposite to the mating surface, the docking space for accommodating the mating connector recessed from the mating surface, and the mounting space recessed from the rear end surface, the docking space and the installation space are penetrated; each power terminal is included a mounting portion in the installation space, a contact portion extending from one end of the mounting portion and protruding into the docking space, and a connecting portion extending from the other end of the mounting portion; the cable includes an outer layer and a conductive layer protruding from the outer layer; The connecting portion includes a tail end that is in contact with the conductive layer of the cable, and the tail end is provided with a bonding conductive The curved inner surface of the layer; the power connector is also provided with a wire clamp for fixing the power terminal and the cable, and the wire clamp is sleeved on the tail end of the power terminal to ensure reliable connection between the conductive layer and the tail end Contact the first set of rings.

As a further improvement of the present invention, the plurality of power terminals are arranged side by side in the longitudinal direction of the vertical mating connector insertion direction, and the adjacent two power terminals form a terminal pair, wherein one of the terminal pairs The tail end holds the conductive layer of the cable together with the tail end of the other power terminal.

As a further improvement of the present invention, the tail end of one of the power supply terminals and the tail end of the other power supply terminal are separated from each other by a gap to facilitate accommodation of the conductive layer of the cable.

As a further improvement of the present invention, the tail end of one of the terminal pairs is symmetrically disposed with the tail end of the other power terminal to form a cylindrical receiving space for accommodating the conductive layer of the cable.

As a further improvement of the present invention, the wire gripper includes a second collar that is sleeved over the outer sheath of the cable, the diameter of the second collar being greater than the diameter of the first collar.

As a further improvement of the present invention, the power connector is provided with a fixing member fixed to the mounting portion of the power terminal, so that the two power terminals constituting the pair of terminals can be simultaneously mounted on the insulating body, and the fixing member receives In the installation space, the insulating body and the fixing member are provided with positioning blocks and positioning holes that are mutually buckled.

As a further improvement of the present invention, the insulative housing is provided with a top wall and a bottom wall defining a mounting space, the positioning holes are disposed on the top wall and the bottom wall and do not penetrate the rear end surface backward; the fixing member includes a fixing and mounting a first fixing strip at a top end of the portion and a second fixing strip fixed to a bottom end of the mounting portion, the positioning block being disposed on the first fixing strip and the second fixing strip.

As a further improvement of the present invention, the first fixing strip and the second fixing strip are separated from each other and are parallel to each other.

As a further improvement of the present invention, the fixing member is provided separately from the power supply terminals and fixed to each other, and the fixing member is an insulator or a conductor.

As a further improvement of the present invention, the insulative housing is provided with a stop strip protruding between the docking space and the installation space, and the stop strip abuts against the fixing member.

Compared with the prior art, the present invention achieves the combination of the cable and the power terminal by setting the wire clamp, and does not need to use a special wire clamping device, thereby greatly reducing the assembly difficulty and assembly cost of the cable and the power terminal.

As shown in the first to third figures, the power connector 100 of the present invention includes an insulative housing 1, a plurality of power terminals 2, and a fixing member fixed to the power terminal 2 for mounting the power terminal 2 in the insulative housing 1. 3. A plurality of cables 4 connected to the power terminal 2 and a wire gripper 5 for fixing the cable 4. The power terminal 2 is substantially flat to be able to carry a large current.

As shown in FIG. 1 , FIG. 2 and FIG. 7 , the insulative housing 1 is provided with an abutting surface 11 , a rear end surface 12 opposite to the mating surface 11 , and a recessed surface 11 for receiving a mating connector ( The docking space 110 (not shown) and the mounting space 120 recessed from the rear end surface 12, the docking space 110 and the mounting space 120 penetrate each other to form a receiving passage for receiving the power terminal 2 and the fixing member 3. In addition, the insulative housing 1 is also disposed to define the docking space 110 and the top wall 13 and the bottom wall 14 of the mounting space 120 in the upper and lower directions. The top wall 13 and the bottom wall 14 are provided with a plurality of spaced positioning holes 15 at positions close to the rear end surface 12, and the positioning holes 15 do not extend rearward through the rear end surface 12. The top wall 13 and the bottom wall 14 are respectively provided with a stop strip 16 (shown in FIG. 7 ) protruding between the docking space 110 and the installation space 120 , and the stop strip 16 is used for fixing the fixing member The 3 phases abut against each other to position the fixture 3. The two sides of the insulative housing 1 are provided with symmetrically disposed flanges 17 , and the flanges 17 are provided with through holes 171 .

Referring to FIG. 1 and FIG. 4 to FIG. 6 , the power terminals 2 are arranged side by side in the longitudinal direction D-D of the vertical mating connector insertion direction, wherein each power terminal 2 has the same structure. By means of the arrangement, the power terminals 2 can be manufactured by the same equipment and method, and the mass production is good and the efficiency is high. Each power terminal 2 is included in the installation space The flat mounting portion 21 in the 120, the connecting portion 22 that is contracted from one end of the mounting portion 21 and protrudes into the docking space 110, and the connecting portion 23 that is contracted and extended from the other end of the mounting portion 21. The contact portion 22 has elasticity and is contracted with respect to the mounting portion 21 . The mounting portion 21 includes a top end 211 and a bottom end 212 of the protruding contact portion 22 . Referring to FIG. 6 , the connecting portion 23 includes a transition portion 24 extending rearward and a tail end 25 extending horizontally from the transition portion 24 . The cable 4 is provided with a cylindrical outer cladding 41 and a cylindrical conductive layer 42 located within the outer cladding 41 and projecting the outer cladding 41. The trailing end 25 is provided with an arcuate inner surface 26 that conforms to the conductive layer 42 of the cable 4.

The two adjacent power supply terminals 2 constitute a terminal pair 20. By designing the two-piece terminal pair 20, the structure of each of the power terminals 2 constituting the terminal pair 20 can be simplified to facilitate manufacturing. In the embodiment, the structure of each of the power terminals 2 is the same. When assembling, any one of the power terminals 2 needs to be turned outward by 180 degrees, and can be combined with another power terminal 2 to form a terminal. For 20.

Referring to FIGS. 3 to 5 , the fixing member 3 includes a first fixing strip 31 fixed to the top end 211 of the mounting portion 21 of each terminal pair 20 and a second fixing fixed to the bottom end 212 of the mounting portion 21 . Article 32. The first fixing strip 31 and the second fixing strip 32 are both elongated. The first fixing strip 31 and the second fixing strip 32 are separated from each other and parallel to each other. The first fixing strip 31 and the second fixing strip 32 are correspondingly provided with positioning blocks 33 protruding upward and downward. The positioning block 33 extends rearward beyond the mounting portion 21 and above and below the connecting portion 23. The positioning block 33 includes an inclined guiding surface 331 and a vertical pressing surface 332. Since the positioning hole 15 of the insulative housing 1 does not extend rearward through the rear end surface 12, when the positioning block 33 protrudes into the positioning hole 15, the pressing surface 332 abuts against the insulative housing 1 to prevent the terminal pair 20 from being topped backward. Retreat.

The fixing member 3 is disposed separately from the power terminal 2 and fixed to each other. The fixing member 3 can be overmolded on the top end 211 and the bottom end 212 of the power terminal 2 to achieve mutual fixation between the fixing member 3 and the power terminal 2. Of course, it is also possible to provide a recess in the fixing member 3, and to fix the top end 211 and the bottom end 212 of the power terminal 2 during assembly, the fixing of the fixing member 3 and the power terminal 2 can also be achieved. The fixing member 3 can be an insulator or a guide body. In the present embodiment, each of the terminal pairs 20 is fixed by the first fixing strip 31 and the second fixing strip 32 from the upper and lower directions to form a whole. By the arrangement, the two power terminals 2 constituting the terminal pair 20 can be simultaneously mounted on the insulative housing 1.

Referring to the third and fourth figures, the wire gripper 5 includes a first sleeve that is sleeved on the tail end 25 of the power terminal 2 to achieve reliable contact between the conductive layer 42 and the tail end 25 of the cable 4. The ring 51 and the second collar 52 sleeved on the outer layer 41 of the cable 4. The diameter of the second collar 52 is greater than the diameter of the first collar 51.

When assembling, firstly, the adjacent two power terminals 2 are arranged face to face symmetrically. Then, the first fixing strip 31 and the second fixing strip 32 of the fixing member 3 are correspondingly fixed to the top end 211 and the bottom end 212 of each terminal pair 20. The tail end 25 of one of the terminal pairs 20 and the tail end 25 of the other power terminal 2 are separated from each other by the gap 27 to form a cylindrical receiving space for accommodating the conductive layer 42 of the cable 4. 28 (refer to Figure 5). The conductive layers 42 of the cable 4 are held together between the two ends 25 of the terminal pair 20. When the first collar 51 of the wire gripper 5 is sleeved on the tail end 25 of the terminal pair 20, the two end ends 25 are tightened, thereby achieving the purpose of stably holding the conductive layer 42 of the cable 4. Then, the power terminal 2, the fixing member 3 and the cable 4 are inserted into the installation space 120 and the docking space 110 from the back to the front. This assembly method can eliminate the manufacturing tool and can be completed manually, thereby reducing the assembly difficulty. Referring to FIG. 7 , the fixing member 3 is completely received in the installation space 120 , and the stopper strip 16 abuts against the fixing member 3 to position the fixing member 3 . The positioning block 33 is finally guided into the positioning hole 15 under the guidance of the guiding surface 331 to achieve mutual engagement between the fixing member 3 and the insulating body 1. Of course, in other embodiments, the positioning holes 15 may be disposed on the fixing member 3, and the positioning block 33 is disposed on the top wall 13 and the bottom wall 14 of the insulative housing 1. The purpose.

Compared with the prior art, the present invention does not directly mount the power terminal 2 on the insulative housing 1 in a hard interference manner, but mounts the power terminal 2 on the insulative housing 1 by the fixing member 3. Moreover, the fixing member 3 and the insulative housing 1 are provided with the positioning block 33 and the positioning hole 15 which are mutually engaged to achieve elastic connection between the two. If the assembly of the terminal pair 20 is incorrect or the component is damaged, it is only necessary to withdraw it from the insulating body 1 and replace it. Due to insulation The body is not damaged. This design makes it easy to fix assembly errors or component damage, which improves component reusability and reduces production costs. Preferably, the fixing member 3 and the power terminal 2 can be separated from each other without being broken, thereby protecting each element. In addition, the connection of the power terminal 2 and the cable 4 is achieved by the wire gripper 5, and no additional wire clamping device is required, thereby improving assembly efficiency.

In summary, this creation has indeed met the requirements of the invention patent, and applied for a patent in accordance with the law. However, the above-mentioned embodiments are merely preferred embodiments of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make equivalent modifications or variations in accordance with the spirit of the present invention. It should be covered by the following patent application.

100‧‧‧Power connector

1‧‧‧Insulating body

11‧‧‧ docking

110‧‧‧ docking space

12‧‧‧ rear end face

120‧‧‧Installation space

13‧‧‧ top wall

14‧‧‧ bottom wall

15‧‧‧Positioning holes

16‧‧‧stop strip

17‧‧‧Front

171‧‧‧Installation hole

2‧‧‧Power terminal

20‧‧‧Terminal pair

21‧‧‧Installation Department

211‧‧‧Top

212‧‧‧ bottom

22‧‧‧Contacts

23‧‧‧Connecting Department

24‧‧‧Transition Department

25‧‧‧End

26‧‧‧ inner surface

27‧‧‧ gap

28‧‧‧ accommodating space

3‧‧‧Fixed parts

31‧‧‧First fixed strip

32‧‧‧Second fixed strip

33‧‧‧ Positioning block

331‧‧‧ Guide surface

332‧‧‧Resistance surface

4‧‧‧ Cable

41‧‧‧Outsourcing

42‧‧‧ Conductive layer

5‧‧‧Clamping device

51‧‧‧ first ring

52‧‧‧second ring

The first figure is a perspective assembled view of the power connector of the present invention.

The second figure is a perspective assembled view of the power connector shown in the first figure at another angle.

The third figure is a partial exploded view of the power connector shown in the first figure.

The fourth figure is a perspective view of the terminal pair, the fixing member, the cable and the wire gripper of the power connector of the present invention before assembly.

The fifth figure is an exploded perspective view of another angle of the fourth figure.

Figure 6 is a perspective view of the power terminal of the power connector of the present invention.

The seventh drawing is a perspective assembled view of the power connector of the present invention after a part of the power connector is cut away.

20‧‧‧Terminal pair

21‧‧‧Installation Department

211‧‧‧Top

212‧‧‧ bottom

22‧‧‧Contacts

23‧‧‧Connecting Department

25‧‧‧End

3‧‧‧Fixed parts

31‧‧‧First fixed strip

32‧‧‧Second fixed strip

33‧‧‧ Positioning block

4‧‧‧ Cable

41‧‧‧Outsourcing

42‧‧‧ Conductive layer

5‧‧‧Clamping device

51‧‧‧ first ring

52‧‧‧second ring

Claims (10)

A power connector includes: an insulative housing having an abutting surface, an opposite end surface opposite to the mating surface, a docking space recessed from the mating surface for receiving the mating connector, and an installation space recessed from the rear end surface, The docking space and the installation space are mutually penetrated; the plurality of power terminals are mounted on the insulative housing, and each of the power terminals includes a mounting portion located in the mounting space, a contact portion extending from one end of the mounting portion and protruding into the docking space, and a connecting portion extending from the other end of the mounting portion, the connecting portion including a tail end provided with an arcuate inner surface; a plurality of cables connected to the power terminal, the cable including the outer layer and the conductive layer protruding from the outer layer a layer, the conductive layer is attached to the curved inner surface of the power terminal; and a wire clamp for fixing the power terminal and the cable, the wire clamp comprising sleeved on the tail end of the power terminal to make the conductive layer and the tail The first ring that achieves reliable contact. The power connector of claim 1, wherein the plurality of power terminals are arranged side by side in a longitudinal direction of a vertical mating connector insertion direction, and the adjacent two power terminals form a terminal pair, wherein the The tail end of one of the power terminals of the terminal pair and the tail end of the other power terminal clamp the conductive layer of the cable. The power connector of claim 2, wherein a tail end of one of the terminal pairs is separated from a tail end of another power terminal by a gap to facilitate accommodation of the cable. Conductive layer. The power connector of claim 2, wherein a tail end of one of the terminal pairs is symmetrically disposed with a tail end of the other power terminal to form a cylindrical shape accommodating the conductive layer of the cable Containment space. The power connector of claim 1, wherein the wire gripper comprises a second collar that is sleeved on the outer sheath of the cable, the diameter of the second collar being larger than the diameter of the first collar . The power connector of claim 2, wherein the power connector is provided with a fixing member fixed to the mounting portion of the power terminal, so that the two power terminals constituting the pair of terminals can be simultaneously mounted on the insulation. The fixing member is received in the installation space, and the insulating body and the fixing member are provided with positioning blocks and positioning holes that are mutually buckled. The power connector of claim 6, wherein the insulative housing is provided with a top wall and a bottom wall defining a mounting space, and the positioning holes are disposed on the top wall and the bottom wall and do not penetrate the rear end face backward; The fixing member includes a first fixing strip fixed to the top end of the mounting portion and a second fixing strip fixed to the bottom end of the mounting portion, and the positioning block is disposed on the first fixing strip and the second fixing strip. The power connector of claim 7, wherein the first fixing strip and the second fixing strip are separated from each other and parallel to each other. The power connector of claim 6, wherein the fixing member is separately provided from the power terminal and fixed to each other, and the fixing member is an insulator or a conductor. The power connector of claim 9, wherein the insulative housing is provided with a stop strip protruding between the docking space and the installation space, the stop strip abutting the fixing member.