TWM456602U - Large-current electrical connector - Google Patents

Description

High current electrical connector

This work is about an electrical connector, especially a high-current electrical connector that supports high-current transmission, which has the advantages of reducing contact resistance and reducing power consumption, and the structure is simplified and the male terminal and the female terminal can be replaced.

Electrical connectors are commonly used in many electrical or electronic products. Electrical connectors can be divided into many different types depending on the application and function. The electrical connectors used in general electronic products are used to transmit electrical signals. And power, the electrical connectors used in large power equipment are typically used to transmit large currents or higher voltages.

The electrical connector generally includes a male connector and a female connector, the male connector is provided with a pin, and the female connector is provided with a corresponding jack. After the male connector and the female connector are coupled to each other, The pin is inserted into the jack, and the electrical contact is formed through the mutual contact of the pin and the jack, thereby completing the connection and transmission of the electrical signal and the power. In order to ensure the contact between the pin and the jack, the electrical connector is usually Contact pressure is generated between the pin and the jack through the elastic member or the elastic force of the pin and the jack itself. In the prior art, the contact pressure of some small-volume electrical connectors Low force, only suitable for low current (mA) or low voltage (mV) level. In the case of transmitting hundreds of amps of high current, it requires large contact pressure to reduce contact resistance and reduce power consumption. Most of the electrical connector constructions of electronic products do not provide sufficient contact pressure, so they are not suitable for high current transmission.

The "Ultra-current electrical connector jack" of the disclosed Chinese Utility Model Application No. 201020138235.4, and the "Ultra-current electrical connector pin" of the disclosed Chinese Utility Model Patent Application No. 200920078886.6, although a suitable application is proposed. For the transmission of high-current electrical connectors, but the high-current electrical connector adopts a single structural design, which is not only costly and can not be separated after being crimped together with the cable, if it is a male connector If the pins of the pin and the female connector are damaged or poorly inserted, it is necessary to re-install the new electrical connector, and vice versa, if the cable and the electrical connector are crimped together during the construction process. If the electrical connector is cautiously damaged or damaged, the electrical connector must be replaced again. This is only necessary because of partial damage, it is necessary to replace the electrical connector. This is obviously an unnecessary waste.

The purpose of this creation is to solve the problem of the conventional electrical connector, and to propose a performance with reduced contact resistance and reduced power consumption, as well as a structurally compact and replaceable High current electrical connectors for terminals and female terminals.

An embodiment of the present high-current electrical connector includes: a male connector having a cable crimping portion and a male terminal, the cable crimping portion being crimped and connected to the cable, and the male terminal having a pin and a connecting end, the connecting end is combined with the cable crimping portion by a combined structure; a female connector, the female connector has a cable crimping portion and a female terminal, and the cable is crimped The part is connected by crimping and cable, the female terminal has a jack and a connecting end, and the connecting end is combined with the cable crimping part in a detachable relationship by a combined structure, and the female terminal has several places around the jack The crack in the circumferential position is divided into a plurality of elastic coupling claws around the insertion hole, and the outer sleeve of the coupling claw is provided with a C-shaped spring ring, which can be inserted into the female terminal jack by the C of the male terminal. The spring force of the spring ring gives a large contact pressure between the coupling claw and the pin.

In an embodiment of the present invention, the combined structure of the male connector includes: a semi-circular tubular connecting wall disposed on the cable crimping portion, a coupling hole disposed at the cable crimping portion, and a bolt, the male terminal The front end of the connecting end can be inserted into the coupling hole, and the connecting end of the male terminal is fixed to the connecting wall by bolts, so that the connecting end of the male terminal is The detachable relationship is linked to the cable crimping portion.

In an embodiment of the present invention, the combined structure of the female connector includes: a semi-circular tubular connecting wall disposed on the cable crimping portion, a coupling hole provided at the cable crimping portion, and a bolt, the female terminal The front end of the connecting end can be inserted into the coupling hole, and the connecting end of the female terminal is fixed to the connecting wall by a bolt, so that the connecting end of the female terminal is connected with the cable crimping portion in a detachable relationship.

In an embodiment of the present invention, the cable crimping portion of the male connector and the female connector is further provided with a soldering hole for further soldering the cable crimping portion and the cable together.

Compared with the prior art, this creation has the advantages and effects as described below:

(1) When the pin of the male connector is inserted into the jack of the female connector, the elastic force of the C-type spring ring is used to obtain a large contact pressure between the coupling claw and the pin, which reduces the contact resistance and reduces the work. The effect of consumption.

(2) The connecting end of the male terminal of the male connector is connected in a detachable relationship with the cable crimping portion, and the connecting end of the female terminal of the female connector is also connected in a detachable relationship with the cable crimping portion. The advantages of replacing the male and female terminals.

Other functions and examples of this creation will be accompanied by the schema. described as follows.

An embodiment of the present high current electrical connector is constructed as shown in FIG. 1 and includes a male connector 10 and a female connector 40.

The male connector 10 has a cable crimping portion 20 and a male terminal 30. The cable crimping portion 20 and the male terminal 30 are both made of a conductive metal material. In practice, the plating can be performed as needed, and the cable crimping is performed. The portion 20 is connected to a cable C by crimping (see "figure 5"). The male terminal 30 is a columnar member. The axial end of the male terminal 30 is a pin 31, and the male terminal 30 is axially The other end is a connecting end 32. The connecting end 32 is combined with the cable crimping portion 20 in a detachable relationship by a combined structure; the female end connector 40 has a cable crimping portion 50 and a female terminal 60, and the cable is crimped. Both the portion 50 and the female terminal 60 are made of a conductive metal material. In practice, the plating process can be performed as needed. The cable crimping portion 50 is connected to the cable C in a crimping manner, and the axial end of the female terminal 60 is inserted. The hole 61 (see "Fig. 3-2"), the other end of the female terminal 60 in the axial direction is a connecting end 62, and the engaging end 62 is combined with the cable crimping portion 50 in a detachable relationship by a combined structure. The end connector 40 has a plurality of cracks located at equal circumferential positions around the insertion hole 61. The slit 611 (see "3-1") is formed with a plurality of elastic coupling claws 63 around the insertion hole 61. The outer side of the coupling claw 63 is provided with a C-shaped spring ring 64, which can be inserted into the male terminal 30. When the needle 31 is inserted into the insertion hole 61 of the female terminal 60, a large contact pressure is obtained between the coupling claw 63 and the pin 31 by the elastic force of the C-type spring ring 64.

Referring to "2-1" and "2-2", one end of the cable crimping portion 20 is a crimping pipe 21, and the crimping pipe 21 is a tubular member, and the crimping pipe 21 has a cross section in the cross section. 22, the metal core of the cable C (see "figure 5") can be inserted into the crimping pipe 21, and the crimping pipe 21 is flattened by a crimping pliers or other tools to be tightly combined with the metal core of the cable C. The slit 22 facilitates the deformation of the crimping pipe 21 and the construction of the crimping operation.

In an embodiment of the present invention, the cable crimping portion 50 of the female connector 40 and the cable crimping portion 20 of the male connector 10 have the same structure; the axial end of the cable crimping portion 50 is a crimping tube. 51, the crimping tube 51 is a tubular element, the crimping tube 51 has a cross-section 52 in the cross-section, and the metal core of the cable C (see "figure 5") can be inserted into the crimping tube 51, and then crimped or other tools The crimping tube 51 is flattened to be tightly bonded to the metal core of the cable C, and the slit 52 facilitates the deformation of the crimping tube 51 and the construction of the crimping operation.

In the embodiment of the present invention, the diameter of the crimping tube 21 of the cable crimping portion 20 and the crimping tube 51 of the cable crimping portion 50 may depend on the diameter of the cable C, such as the crimping tube 21 shown in "Fig. 1" The diameter of the crimping pipe 51 is small, and in another embodiment of "Fig. 4" (taking the crimping pipe 51a of the cable crimping portion 50a as an example), the outer diameter of the crimping pipe 51a is large, and can be used for diameter and diameter. Larger cable C is crimped.

In general, the electrical connector and cable C are better soldered than the correct crimp connection, especially in high current applications. In one embodiment of the present invention, the cable crimping of the male connector 10 The crimping tube 21 of the portion 20 is further provided with a soldering hole 23, and the crimping tube 51 of the cable crimping portion 50 of the female connector 40 is further provided with a soldering hole 53 for further crimping the cable crimping portion 20 and the cable. The joints 50 are respectively welded to the cable C.

In an embodiment of the present invention, the combined structure of the male connector 10, as shown in FIG. 1, includes: a semi-circular tubular connecting wall 24 disposed on the cable crimping portion 20, and a crimping connection on the cable. The coupling hole 25 of the portion 20, and a bolt 26, the coupling hole 25 is just pluggably coupled to the engaging end 32 of the male terminal 30, and the shape of the engaging wall 24 and the coupling hole 25 matches the shape of the engaging end 32 of the male terminal 30, Since the connecting wall 24 is a semi-circular tubular shape, the front end of the engaging end 32 of the male terminal 30 The coupling hole 25 can be conveniently inserted. When the engaging end 32 of the male terminal 30 is inserted into the coupling hole 25, it can be in close contact with the connecting wall 24, and the end of the metal core of the cable C can also be connected with the connecting end 32. The axial end face contact 321 , the connecting wall 24 has a consistent through hole 241 , and the corresponding end of the engaging end 32 and the through hole 241 has a screw hole 322 , which is passed through the through hole 241 and screwed to the screw hole 322 The engaging end 32 of the terminal 30 is fixed to the connecting wall 24, so that the engaging end 32 of the male terminal 30 is coupled to the cable crimping portion 20 in a detachable relationship; in an embodiment of the present invention, the engaging end 32 is a cylindrical shape. The element, so the connecting wall 24 is semi-circular in shape, and the coupling hole 25 is also circular, but this shape is merely an example and is not intended to limit it to such a shape.

In an embodiment of the present invention, the combined structure of the female connector 40 is as shown in FIG. 1 and includes: a semi-circular tubular connecting wall 54 disposed on the cable crimping portion 50, and a crimping connection on the cable. The coupling hole 55 of the portion 50, and a bolt 56, the coupling hole 55 is just plug-coupled to the engaging end 62 of the female terminal 60, and the shape of the engaging wall 54 and the coupling hole 55 matches the shape of the engaging end 62 of the female terminal 60. Since the connecting wall 54 is a semi-circular tubular shape, the front end of the engaging end 62 of the female terminal 60 can be conveniently inserted into the coupling hole 55. When the engaging end 62 of the female terminal 60 is inserted into the coupling hole 55, it can be closely connected with the connecting wall 54. Contact while cable C The end of the metal core may also be in contact with the axial end surface of the engaging end 62. The engaging wall 54 has a continuous through hole 541, and the connecting end 62 and the through hole 541 have a screw hole 622 corresponding to the through hole. The bolt 56 screwed into the screw hole 622 fixes the engaging end 62 of the female terminal 60 to the engaging wall 54, so that the engaging end 62 of the female terminal 60 is coupled to the cable crimping portion 50 in a detachable relationship; In one embodiment, the engaging end 62 is a cylindrical member, so the engaging wall 54 is a semicircular tubular shape, and the coupling hole 55 is also circular, but the shape is only an example and is not intended to limit it to only such a shape. .

Fig. 6 is a view showing another embodiment of the present invention, in which the outer surface of the male connector 10 is covered with a first insulating housing 71, and the outer surface of the female connector 40 is also covered with a second insulating layer. The outer casing 72, the first insulating outer casing 71 and the second insulating outer casing 72 can generally be made of plastic or other insulating materials (depending on the use of the electrical connector to determine a suitable insulating material), one of which is a plastic injection molding technique. It is complete, in addition to providing the necessary insulation, it also provides sealing and waterproofing.

In the foregoing embodiment of the present invention, the male terminal 30 of the male connector 10 and the female terminal 60 of the female connector 40 are not limited to the single terminal type, and it is common knowledge to familiarize themselves with this technical field. The above embodiment of the present creation The disclosed technical means should be easily applicable to multi-terminal electrical connectors.

Although the present invention has been disclosed above through the above embodiments, it is not intended to limit the creation of the present invention. Anyone skilled in the art can make some changes and refinements without departing from the spirit and scope of the present creation. The scope of patent protection is subject to the terms of the claims attached to this specification.

C‧‧‧ cable

10‧‧‧ Male connector

20‧‧‧Cable crimping department

21‧‧‧ crimping tube

22‧‧‧ incision

23‧‧‧welding holes

24‧‧‧Connecting wall

241‧‧‧through holes

25‧‧‧ coupling points

26‧‧‧ bolt

30‧‧‧ male terminal

31‧‧‧ pins

32‧‧‧Connected end

321‧‧‧ end face

322‧‧‧ screw holes

40‧‧‧Female connector

50‧‧‧Cable crimping department

50a‧‧‧Cable crimping department

51‧‧‧Crimping tube

51a‧‧‧ crimping tube

52‧‧‧ incision

53‧‧‧welding holes

54‧‧‧Connecting wall

541‧‧‧through holes

55‧‧‧ coupling points

56‧‧‧ bolt

60‧‧‧ female terminal

61‧‧‧ jack

611‧‧‧ crack

62‧‧‧Connected end

621‧‧‧ end face

622‧‧‧ screw holes

63‧‧‧ Coupled claws

64‧‧‧C type coil

71‧‧‧First insulated enclosure

72‧‧‧Second insulation enclosure

Fig. 1 is a structural view showing an embodiment of the present invention, showing a sectional structure when the male connector and the female connector are separated.

Fig. 2-1 is a structural view showing an embodiment of the present invention, showing a plan view of the cable crimping portion of the male connector.

Fig. 2-2 is a structural view showing an embodiment of the present invention, showing a side view of the cable crimping portion of the male connector.

Fig. 3-1 is a structural view showing an embodiment of the present invention, showing a side view configuration view of the female terminal.

Fig. 3-2 is a structural view showing an embodiment of the present invention, showing a top view of the female terminal.

Fig. 4 is a structural view showing an embodiment of the present invention, showing a sectional configuration of another embodiment of the cable crimping portion of the female connector.

Fig. 5 is a structural view showing an embodiment of the present invention, showing a sectional structure when the male connector and the female connector are coupled to each other.

Fig. 6 is a structural view showing an embodiment of the present invention, showing a sectional structure in which a male connector having an insulating case and a female connector are coupled to each other.

10‧‧‧ Male connector

20‧‧‧Cable crimping department

21‧‧‧ crimping tube

22‧‧‧ incision

23‧‧‧welding holes

24‧‧‧Connecting wall

241‧‧‧through holes

25‧‧‧ coupling points

26‧‧‧ bolt

30‧‧‧ male terminal

31‧‧‧ pins

32‧‧‧Connected end

321‧‧‧ end face

322‧‧‧ screw holes

40‧‧‧Female connector

50‧‧‧Cable crimping department

51‧‧‧Crimping tube

52‧‧‧ incision

53‧‧‧welding holes

54‧‧‧Connecting wall

541‧‧‧through holes

55‧‧‧ coupling points

56‧‧‧ bolt

60‧‧‧ female terminal

611‧‧‧ crack

62‧‧‧Connected end

621‧‧‧ end face

622‧‧‧ screw holes

63‧‧‧ Coupled claws

64‧‧‧C type coil

Claims (7)

A high-current electrical connector includes: a male connector having a cable crimping portion and a male terminal, wherein the axial end of the cable crimping portion of the male connector is a crimping tube The crimping tube of the male connector is a tubular member, and the crimping tube of the male connector has a cross section in a cross-sectional direction, and the crimping tube of the male connector is connected to a cable by crimping. The terminal is a columnar component, the axial end of the male terminal is a pin, and the other end of the male terminal is an engaging end, and the connecting end is separated by a combined structure and the male a cable crimping portion of the end connector; and a female connector having a cable crimping portion and a female terminal, the axial end of the cable crimping portion of the female connector being a a crimping tube, the crimping tube of the female end connector is a tubular element, the crimping tube of the female end connector has a cross section in a cross section, and the crimping tube of the female end connector is crimped and connected by a cable The axial end of the female terminal is a a hole, the other end of the female terminal is an engaging end, and the connecting end is combined with the cable crimping portion of the female connector in a detachable relationship by a combined structure, wherein the female connector is There are several cracks in the circumference of the socket at the circumscribed circumferential position around the jack A plurality of elastic coupling claws are formed, and the outer collar of the coupling claws is provided with a C-shaped coil. The high-current electrical connector of claim 1, wherein the combined structure of the male connector comprises: a semi-circular tubular connecting wall of the cable crimping portion of the male connector; a coupling hole of the cable crimping portion of the male connector, and a bolt, a front end of the connecting end of the male terminal can be inserted into the coupling hole, and the connecting end of the male terminal is fixed by the bolt The connecting wall. The high current electrical connector of claim 1, wherein the crimping tube of the cable crimping portion of the male connector is further provided with a soldering hole. The high current electrical connector of claim 1, wherein the outer surface of the male connector is covered with a first insulating outer casing. The high-current electrical connector of claim 1, wherein the combined structure of the female connector comprises: a semi-circular tubular connecting wall of the cable crimping portion of the female connector, a coupling hole of the cable crimping portion of the female connector, and a bolt, a front end of the connecting end of the female terminal can be inserted into the coupling hole, and the connecting end of the female terminal is fixed by the bolt The connecting wall. The high current electrical connector of claim 1, wherein the crimping tube of the cable crimping portion of the female connector is further provided with a soldering hole. The high current electrical connector of claim 1, wherein the outer surface of the female connector is covered with a second insulating housing.