CN114665320A - Right-angle connector and connector assembly - Google Patents

Abstract

The invention discloses a right-angle connector and a connector assembly. The right-angle connector according to the present invention comprises: the cable connector comprises a shell, a first connecting piece and a second connecting piece, wherein the shell is provided with a first end and a second end, the first end faces a cable access direction and the second end faces a terminal access direction, the cable access direction and the terminal access direction are perpendicular to each other, and a cavity is formed in the shell; and a terminal assembly disposed in the housing forming cavity, the terminal assembly forming the cable connection end and the terminal connection end, wherein the terminal assembly has: a wire crimping terminal having a crimping wing part for connecting a cable and a carrier plate having an open hole; the elastic arm jack terminal comprises a plurality of elastic arms which surround the opening on the carrier plate to form an elastic receiving part; and a protective accessory with a rod-like member arranged to extend in the resilient receiving portion formed by the resilient arm when the protective accessory is fitted into the opening of the carrier plate, whereby finger contact with the terminal in the connector can be avoided and safety in operation is improved due to the protective accessory being employed in the terminal assembly.

Description

Right Angle Connectors and Connector Assemblies

technical field

The present invention relates to the field of electrical connections, and more particularly, to a right-angle electrical connector suitable for high energy.

Background technique

International and domestic large auto companies are developing electric vehicles and hybrid vehicles to replace or partially replace traditional fuel and gas vehicles and alleviate the shortage of fuel and gas for various types of vehicles in the market. In various systems of electric vehicles and hybrid vehicles, the charging and swapping system plays the role of transmitting electric energy and is an important basic technical support system; The interconnected charging connectors and wiring harnesses play a key role.

With the development of electric vehicles, higher requirements are placed on high-energy electrical connectors. The original high-voltage electrical connectors cannot meet the current connection requirements of large wire diameters and high currents, and there are also shortcomings in connection stability and use safety. Therefore, it is urgent to develop a new type of high-voltage electrical connector for vehicles to meet market demands.

SUMMARY OF THE INVENTION

In order to overcome the deficiencies in the prior art, the present invention provides a right-angle connector, comprising: a housing, the housing has an open first end and an open second end, the first end facing the cable access direction and the second The end faces the terminal access direction, the cable access direction and the terminal access direction are perpendicular to each other, and a cavity is formed inside the housing; A connecting end, wherein the terminal assembly has: a crimping terminal, the crimping terminal has a crimping wing for connecting a cable and a carrier plate with an opening; a spring arm jack terminal, the spring arm jack terminal includes a plurality of elastic arms , a plurality of elastic arms form an elastic receiving portion around the opening on the carrier plate; and a protective accessory, the protective accessory is provided with a rod-shaped member, and when the protective accessory is fitted into the opening of the carrier plate, the rod-shaped member is arranged to be arranged by The elastic arm extends in the elastic receiving portion formed by the elastic arm.

According to one aspect of the invention, the free end of the rod-like member of the protective attachment is flush with or exceeds the free end of the resilient arm.

According to yet another aspect of the present invention, the terminal assembly further has a terminal sheath, the terminal sheath has a sleeve for surrounding the elastic arm and a base for engaging to the carrier plate of the crimp terminal, and the protective attachment of the terminal assembly has In the end cap sheet, the rod-like member extends perpendicular to the surface of the end cap sheet.

According to yet another aspect of the present invention, the crimping wing portion includes a first crimping portion and a second crimping portion, the first crimping portion is disposed closer to the front side of the carrier plate relative to the second crimping portion, wherein the first crimping portion It is formed continuously with the second crimping portion, and when the crimping wing portion is flattened, the first crimping portion has a first width, the second crimping portion has a second width, and the first width is greater than the second width.

According to yet another aspect of the present invention, the housing is provided with a position maintaining device near both ends, the position maintaining device includes a screw rod and a screw holding part, wherein the screw holding part is integrally formed with the housing.

According to still another aspect of the present invention, the position maintaining device further includes a screw position maintaining member, the screw holding portion is integrally provided with a screw holding member slot, the screw position maintaining member is movably inserted in the screw holding member slot, and the screw position One end of the holder is the holding end, the other end is the operating end, and the holding end can move over the head of the screw in the screw-fit state and lock its position.

According to yet another aspect of the invention, the housing is provided with a cable retention portion at the second end, the cable retention portion having a cable retention cover adapted to snap to the second end of the housing and two wires disposed inside the cable retention cover The latch, the two wire latches, are configured to cooperate with each other to retain the cable at the second end.

According to still another aspect of the present invention, the right-angle connector further includes a shield assembly including a first shield arranged along a cable insertion direction and a second shield arranged perpendicular to the cable insertion direction, the first shield having a joint portion, One end of the second shielding member forms a concave-convex indentation at a position where the second shielding member engages with the joint portion of the first shielding member.

The present invention also provides an electrical connector assembly, the electrical connector assembly includes the right-angle connector in the above technical solutions, the right-angle connector is used as a female connector; and a male connector matched with the female connector an end connector, a male end connector having a body and a terminal retained in the body, the terminal having an end for insertion into a female connector, the end having a groove configured to receive the female connector Rods for protective attachments in .

According to another aspect of the invention, the male connector is provided with a mating position retaining device having a nut retaining portion integrally formed with the body of the male connector and a nut received in the nut retaining portion.

In the right-angle connector according to the present invention, a protective accessory is used in the terminal assembly, so that the fingers of the assembler can be prevented from touching the terminals in the right-angle connector during operation, thereby improving the safety during operation.

Due to the stepped crimping wings, it provides good mechanical and electrical performance, better resistance to aging and performance degradation caused by high temperature, humidity, low speed twisting and vibration.

The high-voltage connector assembly adopts a threaded position holding mechanism, and the position holding mechanism is further provided with a screw position holding member. The reliability of the assembly connection is significantly improved, especially to meet the needs of the electrical connection of high current-carrying equipment that is affected by vibration. .

Description of drawings

For a more complete understanding of the present invention, the following description of exemplary embodiments may be considered with reference to the accompanying drawings, in which:

Figure 1 shows a perspective view of a high voltage electrical connector assembly according to the present invention.

Figure 2A shows a perspective view of a female connector in a high voltage electrical connector assembly according to the present invention.

2B shows a cross-sectional view of a female connector in a high voltage electrical connector assembly according to the present invention.

Figure 2C shows an exploded perspective view of the female connector in the high voltage electrical connector assembly according to the present invention.

3A shows a perspective view of a male connector in a high voltage electrical connector assembly according to the present invention.

3B shows a cross-sectional view of a male connector in a high voltage electrical connector assembly according to the present invention.

3C shows an exploded perspective view of the male connector in the high voltage electrical connector assembly according to the present invention.

4 shows an exploded perspective view of a terminal assembly in a high voltage electrical connector according to the present invention.

5 shows a perspective view of a terminal assembly with terminals connected according to the present invention.

List of reference signs

1 Electrical connector assembly

10 female connector

110 shell

111 First End

112 Second end

120 Terminal Assembly

121 Crimp Terminal

1211 Crimp Wings

1212 carrier board

122 Spring arm jack terminal

123 Terminal Cover

124 Protective accessories

1241 Rods

1242 End Caps

131 Inner Ferrule

132 Outer ring

133 First shield

134 Second shield

1341 Indentation

140 Cable Holder

141 Cable retention cover

142 wire lock

150 Position Holder

151 Screw Holder

152 screw

153 Screw position holder

154 Screw Retainer Slot

155 through hole

160 seal

161 Seal retainer

170 Insulation sleeve

20 male connector

210 Ontology

211 Base part

212 holes

213 Terminal Receptacle

220 terminals

230 shield

240 Matching Position Holder

241 Nut

260 seal

270 grooves

30 cables

Detailed ways

The present invention will be further described below with reference to specific embodiments and accompanying drawings. More details are set forth in the following description to facilitate a full understanding of the present invention, but it is obvious that the present invention can be implemented in many other ways that are different from those described herein. Those skilled in the art can make similar promotion and deduction according to the actual application situation without violating the connotation of the present invention, so the content of this specific embodiment should not limit the protection scope of the present invention.

Figure 1 shows a perspective view of a high voltage electrical connector assembly 1 according to the present invention. The high-voltage electrical connector assembly 1 is a right-angle electrical connector, that is, the insertion direction of the cable 30 and the arrangement direction of the terminals 220 are perpendicular. As shown in FIG. 1 , the high-voltage electrical connector assembly 1 includes a male connector 20 and a female connector. Terminal connectors 10 , which mate with each other to enable electrical connection of cable 30 to terminal 220 . In actual use, the body of the male connector 20 in the high-voltage electrical connector assembly 1 is fixed to the body of the related equipment through a plurality of fasteners, so that the entire high-voltage electrical connector assembly 1 is fixed to the The set location on the relevant device. The electrical connector assembly 1 according to the present invention is especially suitable for connecting cables with large wire diameters, such as cables with a wire diameter of 95 mm, and accordingly, can be suitable for high current ^- carrying applications, for example, the electrical connector assembly 1 can transmit high to 370A of current.

2A, 2B and 2C respectively show a perspective view, a cross-sectional view and an exploded view of the female connector 10 in the high voltage electrical connector assembly 1 according to the present invention. As can be seen in FIGS. 2A-2C , the right angle female connector 10 includes a housing 110 , a terminal assembly 120 , a shield assembly, a cable retention portion 140 and a position retention device 150 .

The housing 110 has an open first end 111 and an open second end 112 , the first end 111 being open towards the cable entry direction to receive the cable 30 and the second end 112 being open towards the terminal entry of the male connector 20 Oriented to receive terminal 220 in male connector 20 (shown in Figure 3C). The cable access direction and the terminal access direction are perpendicular to each other. Accordingly, the housing 110 forms a right angle of 90 degrees, and a cavity with a corner is formed inside the housing 110 . The terminal assembly 120 and the shielding assembly are disposed in the cavity of the housing 110, wherein the terminal assembly 120 is disposed at a corner position of the cavity to provide electrical connection, and the various components of the shielding assembly are along the cavity of the housing 110 from the first. End 111 extends to second end 112 to provide complete shielding. The housing 110 is typically integrally formed from an electrically insulating material.

The terminal assembly 120 in the cavity of the housing 110 has a cable connection end and a terminal connection end, which are electrically connected to the terminals of the cable 30 and the male connector 20 in mutually perpendicular directions, respectively. Specifically, as shown in FIG. 4 , the terminal assembly 120 includes a crimping terminal 121 , a spring arm socket terminal 122 , a terminal sheath 123 and a protective accessory 124 .

The crimp terminal 121 has crimp wings 1211 for connecting the cable 30 and a carrier plate 1212 with openings. In particular, as shown in FIG. 4 , stepped crimping wings 1211 are employed in the crimp terminal 121 according to the present invention. The crimping wing portion 1211 includes a first crimping portion and a second crimping portion. The first crimping portion is disposed closer to the front side of the carrier plate 1212 than the second crimping portion, and the second crimping portion is located at the first crimping portion. The rear side of the crimping portion is closer to the first end of the female end connector 10, wherein the first crimping portion and the second crimping portion are continuously formed, and in the state where the crimping wings are flattened, the first crimping portion has The first width, the second crimping portion has a second width, and the first width is greater than the second width. The inner surface of the first crimping portion is provided with a plurality of first grooves extending perpendicular to the longitudinal axis of the cable approaching direction, and the inner surface of the second crimping portion is provided with a plurality of second grooves extending perpendicular to the longitudinal axis direction , correspondingly, the width of the first trench is greater than the width of the second trench. Compared with the traditional open-wing terminal, under the same process precision, the crimping stability of the stepped-wing terminal according to the present invention is more ideal. The inventor found that the stepped wing terminal of the present invention can provide excellent transmission performance, and can better resist aging and performance degradation caused by high temperature, humidity, low-speed twisting and vibration and other operating environments.

The spring arm socket terminal 122 in the terminal assembly 120 is adapted to be engaged in the opening of the carrier plate 1212 of the crimp terminal 121 . The elastic arm socket terminal 122 includes a plurality of elastic arms, and there are notches between adjacent elastic arms to separate the elastic arms. These elastic arms surround the opening on the carrier plate 1212 to form an elastic receiving portion to receive the male end connection terminal 220 in the device 20 . The spring arms may have the same meander shape, thereby providing a consistent spring force for stable contact of the spring arms with the outer surfaces of the terminals of the male connector 20 . In some applications, the spring arm jack terminal 122 may also be referred to as a crown spring or crown contact spring.

The terminal assembly 120 includes a terminal sheath 123 having a sleeve for surrounding the spring arms, and a base for engaging to the carrier plate 1212 of the crimp terminal 121, preferably the terminal sheath 123 is made of For example, an insulating resin material is integrally formed. The base of the terminal sheath 123 is fixed with the carrier board 1212 of the crimping terminal 121 through a snap-fit structure.

The terminal assembly 120 includes a protective accessory 124. The protective accessory 124 has an end cover piece 1242 and a rod-shaped piece 1241. The rod-shaped piece 1241 extends perpendicular to the surface of the end cover piece 1242. When in the opening of the plate 1212 , the substantially disc-shaped end caps 1242 cover the opening of the carrier plate 1212 . The rod 1241 extends through a resilient receiving portion formed around the resilient arm. Preferably, the free end of the rod-shaped member 1241 is flush with or exceeds the free end of the elastic arm. The protective attachment 124 can prevent a person's fingers from coming into contact with the electrified elastic arm, thereby avoiding potential hazards. The disc-shaped end cover piece 1242 is preferably engaged in the end of the spring arm jack terminal 122 by interference fit, and at the same time, it also further ensures the opening of the carrier plate of the spring arm jack terminal 122 and the crimping terminal 121 reliably. Abut.

According to a preferred embodiment of the present invention, the shielding assembly includes an inner ferrule 131 and an outer ferrule 132 and a first shielding cover 133 and a second shielding cover 134 crimped on the cable shielding layer as shown in FIGS. 2B and 2C . . In a preferred embodiment, the first shielding cover 133 is substantially in the shape of a square column, preferably integrally formed by a metal plate, to fit the square inner cavity of the casing 110 along the cable insertion direction, and a side portion thereof is provided with There is an opening in the form of an engaging portion to facilitate engaging one end of the second shield 134 . The second shielding cover 134 is formed of a metal plate into a cylindrical shape, and one end of the second shielding member 134 is formed with a circle of concave-convex indentations 1341 , and the circle of indentations 1341 is formed at the joint of the second shielding member 134 and the first shielding member 133 When the first shielding member 133 and the second shielding member 134 are mated together, the structure of the indentation 1341 can improve the reliability of the connection between the two shielding members.

In addition, as shown in FIGS. 2B and 2C , the first end 111 of the housing 110 is further provided with a cable holding portion 140 . The cable holding part 140 has a cable holding cover 141 adapted to be snapped to the first end 111 of the housing 110 and two wire locks 142 provided inside the cable holding cover 141 . The two cord locks 142 are configured to snap into each other so as to hold the cable 30 at the first end 111 . The cable retaining cover 141 is engaged to the first end 111 of the housing 110 through a snap-fit structure, thereby retaining the wire lock 142 to the housing 110 .

As shown in FIGS. 2B and 2C , the first end 111 and the second end 112 of the female connector 10 are respectively provided with sealing rings 160 to prevent external contaminants from entering the interior of the housing 110 . The sealing ring of the first end 111 is held within the housing 110 by means of the cable holding portion 140 . The sealing ring of the second end 112 is retained on the second end 112 of the housing 110 by a specially provided sealing ring retainer 161 . The shape of the sealing rings 160 at both ends matches the shape of the inner cavity of the housing 110 .

In addition, the inner cavity of the housing 110 of the female connector 10 is further provided with an insulating sleeve 170 , which forms a shape of a square sleeve and is adapted to fit inside the first shielding member 133 .

3A, 3B and 3C respectively show a perspective view, a cross-sectional view and an exploded view of the male connector 20 in the high voltage electrical connector assembly 1 according to the present invention. The male connector 20 mainly includes a body 210, a terminal 220, a shield and a matching position retaining device.

The body 210 of the male connector 20 includes a base portion 211 provided with a plurality of holes adapted to receive fasteners for mounting to a device body, and sleeves can be disposed in the holes. The body 210 further includes a pair of receiving portions 213 for receiving the terminals, and the receiving portions 213 form a through channel extending through the base portion 211 . The male connector 20 may also include pairs of terminals 220 , each terminal 220 being disposed in a corresponding one of the channels of the body 210 .

As shown in FIG. 3B , a groove 270 is provided at the upper end of the terminal 220. When the female connector 10 and the male connector 20 are mated and plugged together, the elastic arm mounted on the female connector 10 is inserted The rod 1241 of the protective attachment 124 in the female terminal 122 will be received in the upper end groove 270 of the terminal 220 of the male connector 20 , and the outer peripheral surface of the terminal 220 will be pressed by the elastic arm of the elastic arm jack terminal 122 catch.

As shown in FIG. 3B , a sealing ring accommodating groove is also provided on the surface of the base portion 211 of the body 210 of the male end connector 20 and the side away from the female end connector 10 , and the sealing ring 260 is assembled in the accommodating groove. . When the connector assembly 1 as shown in FIG. 1 is fixed to a plate-like structure of a suitable device by means of fasteners, the sealing ring will tightly engage with the surface of the plate-like structure, thereby providing a good sealing effect.

In addition, the male connector 20 further includes a shielding member 230 , as shown in FIG. 3C , the shielding member 230 has a cylindrical shape and is received in the terminal receiving portion 213 of the male connector 20 . Preferably, when the male connector 20 is mated with the female connector 10, the shielding member 230 is engaged with the cylindrical second shielding member 134 in the female connector 10, thereby providing excellent shielding effect.

In order to ensure the reliability of the connection of the high-current-carrying connector assembly 1 and avoid the loosening of the connection caused by factors such as vibration in practical application, the connector assembly 1 according to the present invention adopts a position maintaining mechanism for threaded connection. The female connector 10 has a position holding device 150 , which is provided near the second end 112 of the housing 110 portion, as shown in FIG. 2A . The position holding device 150 includes a screw rod 152 and a screw rod holding part 151 , wherein the screw rod holding part 151 is an integral part of the housing 110 and has a through hole through which the screw rod 152 can pass and a frame that accommodates and at least partially surrounds the head of the screw rod 151 .

The mating position retaining means 240 of the male connector 20 are provided on the surface of the base portion 211 of the body 210 opposite the female connector 10, which has a nut retaining portion integrally formed with the body and is received in said nut retaining portion Nut 241 in 151. As shown in FIG. 3C , the nut 241 has an outer peripheral surface of a hexagonal cross-section, which is provided in the nut holding portion 151 having a hole of the hexagonal cross-section. It can be clearly seen from FIG. 1 that the position retaining device 150 of the female end connector 10 and the position retaining device 240 of the male end connector 20 are in a mating state. In this state, the screw 152 and the nut 241 are threadedly engaged.

In particular, the position maintaining mechanism further includes a screw position maintaining member 153, as shown in FIG. 1 . One side of the screw holding part 151 of the female connector is integrally provided with a screw holding member slot 154 , and the screw position holding member 153 is movably inserted into the screw holding member slot 154 . One end of the screw position holder 153 is the holding end, and the other end is the operating end. The holding end of the screw position holder 153 can move over the head of the screw rod 152 in the screw-fit state and lock its position. Preferably, the side of the holding end opposite to the screw head forms an arc-shaped surface, and the operating end is provided with a plurality of protruding stripes to improve the operating feel. The screw holding part also integrally has a frame located at the head of the screw 152, the side of the frame adjacent to the screw position holder 153 is provided with a through hole 155, and the holding end can move through the through hole 155 and extend into the inside of the frame over the head of the screw 152 .

In the right-angle connector 10 according to the present invention, a protective accessory 124 is used in the terminal assembly 120, so that the fingers of the assembler can be prevented from touching the terminals in the right-angle connector 10, and the safety during operation is improved.

Due to the stepped crimping wings, it provides good mechanical and electrical performance, better resistance to aging and performance degradation caused by high temperature, humidity, low speed twisting and vibration.

The high-voltage connector assembly 1 adopts a position holding mechanism for threaded connection, and a screw position holding member 153 is further arranged in the position holding mechanism. The reliability of the assembly connection is significantly improved, especially to meet the electrical connection of high current-carrying equipment that is affected by vibration. demand.

Although the present invention is disclosed above with preferred embodiments, it is not intended to limit the present invention, and any person skilled in the art can make possible changes and modifications without departing from the spirit and scope of the present invention. Therefore, any modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solutions of the present invention all fall within the protection scope defined by the claims of the present invention.

Claims (10)

1. A right angle connector comprising:

a housing having a first end and a second end, the first end facing a cable access direction and the second end facing a terminal access direction, the cable access direction and the terminal access direction being perpendicular to each other, and the housing forming a cavity therein; and

a terminal assembly disposed in the housing forming cavity, the terminal assembly forming a cable connection end and a terminal connection end,

characterized in that the terminal assembly has:

a wire crimping terminal having a crimping wing part for connecting a cable and a carrier plate having an open hole;

a spring-arm-receptacle terminal comprising a plurality of spring arms forming a spring receptacle around an aperture on the carrier plate; and

a shield attachment (124) with a stem arranged to extend in the resilient receiving portion formed by the resilient arm when the shield attachment is fitted into the aperture of the carrier plate.

2. The right angle connector according to claim 1, wherein a free end of the rod-like member of the protective attachment is flush with or exceeds a free end of the resilient arm.

3. The right angle connector of claim 1, wherein said terminal assembly further has a terminal sheath having a sleeve for surrounding said spring arm and a base for engaging a carrier plate of said wire crimp terminal,

and the protective attachments of the terminal assemblies have end caps, the rod-like members extending perpendicular to the surfaces of the end caps.

4. The right angle connector of claim 1, wherein the crimping wings include a first crimping portion and a second crimping portion, the first crimping portion being disposed proximate a front side of the carrier plate relative to the second crimping portion,

wherein the first crimping portion and the second crimping portion are continuously formed, the first crimping portion has a first width and the second crimping portion has a second width in a state where the crimping wing portions are flattened, the first width being greater than the second width.

5. The right angle connector according to claim 1, wherein the housing is provided with a position retaining device near the second end, the position retaining device comprising a screw and a screw retaining portion, wherein the screw retaining portion is integrally formed with the housing.

6. The right-angle connector according to claim 5, wherein the position retaining means further comprises a screw position retaining member integrally provided with a screw retaining member insertion groove in which the screw position retaining member is movably inserted,

one end of the screw position retaining piece is a retaining end, the other end of the screw position retaining piece is an operating end, and the retaining end can move to the position above the head of the screw in the thread matching state and clamp the position of the head of the screw.

7. The right angle connector of claim 1,

the housing is provided with a cable retention at the second end having a cable retention cover adapted to snap-fit to the second end of the housing and two wire catches disposed inside the cable retention cover, the two wire catches being configured to cooperate to retain the cable at the second end.

8. A right angle connector according to claim 1, further comprising a shield assembly, the shield assembly comprising a first shield member arranged along a cable insertion direction and a second shield member arranged perpendicular to the cable insertion direction,

the first shielding part is provided with a joint part, and one end of the second shielding part forms a concave-convex indentation at the position where the second shielding part is jointed with the joint part of the first shielding part.

9. An electrical connector assembly, comprising:

the right angle connector of any one of claims 1-8, used as a female connector; and

and a male end connector mated with the female end connector, the male end connector having a body and a terminal retained in the body, the terminal having an end for insertion into the female end connector, the end being provided with a groove configured to receive the rod of the protective accessory in the female end connector.

10. The electrical connector assembly of claim 9, wherein the male end connector is provided with a mating position retention device having a nut retaining portion integrally formed from a body of the male end connector and a nut received in the nut retaining portion.

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