CN209822993U

CN209822993U - Electric connector

Info

Publication number: CN209822993U
Application number: CN201920762020.0U
Authority: CN
Inventors: 应伟亮
Original assignee: Shanghai Zhixing Electronic Technology Co Ltd
Current assignee: Shanghai Zhixing Electronic Technology Co Ltd
Priority date: 2019-05-24
Filing date: 2019-05-24
Publication date: 2019-12-20
Anticipated expiration: 2029-05-24

Abstract

The utility model relates to an electric connector, which comprises a plug and a socket, wherein the insulating shell of the plug is provided with a jack catch in the plugging direction, and the insulating shell of the socket is provided with a clamping groove and a boss in the plugging direction; in the inserting process, the clamping jaw is lifted up when passing through the boss and falls into the clamping groove when in the inserting position, so that primary locking of the plug and the socket is realized; the plug is also sleeved with a locking ring which can rotate around the central axis of the plug, and the locking ring is clamped on an insulating shell of the plug; the locking ring is provided with a locking cantilever, and the locking cantilever is overlapped with the jaw position of the plug by rotating the locking ring, so that the jaw is limited to be separated from the clamping groove, and a secondary locking function is realized. The structure of second grade locking makes the product structure compacter, and the operation is more simple and convenient laborsaving, and secondary locking function is more reliable, has high vibration resistance.

Description

Electric connector

Technical Field

The utility model relates to an electric connector field especially relates to a new forms of energy electric automobile's high anti vibration performance electric connector.

Background

In the technical field of electric connectors of new energy electric vehicles, the reliability and safety of electric connection are very important. The method has the advantages that the situation that the wrong plugging and unplugging of the electric connector is caused due to vibration or misoperation is very important, and even personnel safety accidents can be caused if the wrong hot plugging and unplugging occurs, so that the operation sequence can be effectively defined by adopting secondary locking on the electric connector to prevent misoperation. In the prior art, secondary locking is carried out by adopting a pressing or pulling and inserting mode, the secondary locking structure is complex in design, the reliability is reduced, and more space is occupied. CN105098482B discloses an electric automobile connector plug substep locking device, and the device adopts substep locking device to have better reliability and safety, but its shortcoming is that the structure is comparatively complicated, and the use degree of difficulty is big, and the maintenance cost is higher, and manual operation space is little, is unfavorable for production process's operating efficiency and convenience. CN102916303 discloses a plastic shell connector with shielding and high-voltage interlocking structure, and this scheme adopts the locking device of single cantilever, and this cantilever outstanding is more in the connector circumference, and spatial layout is not compact and only relies on the plastic cantilever to realize the locking simultaneously, appears inefficacy easily under the stronger vibration environment.

Disclosure of Invention

An object of the utility model is to provide a compact electric connector with high electromagnetic shielding performance and high anti vibration performance.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a compact electric connector comprises a plug and a socket, wherein the plug and the socket both comprise an insulating outer shell and a shielding inner shell, a clamping jaw is arranged on the insulating outer shell of the plug in the plugging direction, and a clamping groove and a boss are arranged on the insulating outer shell of the socket in the plugging direction; in the inserting process, the clamping jaw is lifted up when passing through the boss and falls into the clamping groove when in the inserting position, so that primary locking of the plug and the socket is realized; when the plug and the socket are separated, the unlocking cantilever of the clamping jaw is pressed to be separated from the clamping groove and slide out along the boss to realize unlocking; the plug is also sleeved with a locking ring which can rotate around the central axis of the plug, and the locking ring is clamped on an insulating shell of the plug; the locking ring is provided with a locking cantilever, and the locking cantilever is overlapped with the jaw position of the plug by rotating the locking ring, so that the jaw is limited to be separated from the clamping groove, and a secondary locking function is realized. Compared with the existing locking technology, the secondary locking structure has the advantages that the coaxial rotation mode is adopted, no additional axial operation space is needed, so that the connector can realize a more compact structure, the installation arrangement and the operation space of a product in a system are saved, and the product is more compact; the operation is more convenient and labor-saving; the limiting area of the secondary locking directly acting on the primary locking position is far larger than that of the prior art, the secondary locking function is more reliable, and the vibration resistance is high; and the secondary locking has a simpler structure and is easy to produce and control quality.

The further improvement lies in, the insulating shell body of plug and socket adopts plastics injection moulding, the casing adopts the casting shaping in the shielding of plug and socket, and insulating shell body and interior shielding shell form compound casing through interference joint, pre-buried injection moulding or the inseparable combination of ultrasonic bonding together, provide omnidirectional shielding function, increased the structural strength of product by a wide margin.

The utility model discloses a compact electric connector has high electromagnetic shield performance and high anti-vibration performance, provides safer assurance for new forms of energy electric automobile's application.

Drawings

FIG. 1 is an overall simplified schematic diagram of an electrical connector;

FIG. 2 is a schematic cross-sectional view of the electrical connector;

FIG. 3 is a schematic view of a rotational secondary locking structure;

the following embodiments are described in detail with reference to the accompanying drawings, and the scope of the invention should not be limited to the embodiments described below, and various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the spirit of the present invention should fall within the scope of the invention defined by the claims.

Detailed Description

The utility model relates to a can be used to new forms of energy electric automobile's compact electric connector of high electromagnetic shield performance and high anti vibration performance mainly comprises plug and socket.

Fig. 1 shows the structure of an electrical connector, which includes a plug 1 and a socket 2, where the plug 1 and the socket 2 are respectively used for connecting cable or bus bar ends on the side where the plug 1 is located, and are plugged with the socket 2 through the plug 1 to realize circuit connection on both sides. The plug 1 mainly includes the jack part in insulating casing 3 and the interior shield shell 4, and jack 5 of jack part is glued the core 6 cover through the plug and is located in the shield shell 4, is equipped with shielding ring 8 in the interior shield shell 4, and shielding ring 8 crimping is on the cable that has peeled off the outer insulating layer, and the cable passes the threading hole 9 that the tail end of insulating casing 3 set up and is connected with other equipment. The socket 2 basically includes an insulative outer housing 16 and pins 14 disposed within a shielded inner housing 15. The pins 14 are mounted on the socket core 18, and then the socket core 18 is mounted on the socket inner shielding shell 14, and the socket inner shielding shell 14 and the equipment matching mounting surface are provided with sealing parts.

As 1,2 fig. show, the utility model discloses a plug 1 is provided with jack catch 3.1 in the plug direction, socket 2 is provided with draw-in groove 16.1 and boss 16.2 in the plug direction. In the inserting process, the clamping jaw 3.1 is lifted up when passing through the boss 16.2 and falls into the clamping groove 16.1 when in the inserting position, so that primary locking of the plug 1 and the socket 2 is realized; when the plug 1 and the socket 2 are separated, the claw 3.1 is separated from the clamping groove 16.1 and slides out along the boss 16.2 to realize unlocking by pressing the unlocking cantilever 3.2 of the claw 3.1. The plug 1 is further sleeved with a locking ring 13 capable of rotating around the central axis of the plug, and a boss 13.1 is arranged on the inner wall of the locking ring 13 and is clamped on the insulating shell 3 through a guide clamping groove 3.10 arranged on the insulating shell 3 of the plug 1. The guide clamping groove 3.10 is provided with a plurality of convex ribs 3.7, 3.8 and 3.9 to form a locking position cavity 3.3, an unlocking position cavity 3.4, an axial movement slide rail 3.5 and a circumferential movement slide rail 3.6; the boss 13.1 of the locking ring 13 is pressed into the unlocking position cavity 3.4 after axially moving the slide rail 3.5, at the moment, the locking cantilever 13.2 of the locking ring is not overlapped with the jaw 3.1 of the plug, primary locking and unlocking can be realized through the matching of the jaw 3.1 and the clamping groove 16.1, and the secondary locking function is in an unlocking state; through rotating the locking ring 13, the boss 13.1 is separated from the unlocking position cavity 3.4 and enters the locking position cavity 3.3 after passing through the circumferential movement sliding rail 3.6, at the moment, the locking cantilever 13.2 of the locking ring and the jaw 3.1 of the plug form an up-and-down overlapping state, the buckling deformation of the jaw 3.1 is limited, so that the primary locking cannot be unlocked and/or locked, and the secondary locking function is realized. Compared with the prior locking technology, the secondary locking structure has the advantages that the coaxial rotation mode is adopted, so that an additional axial operation space is not needed, the connector can be in a more compact structure, and the installation arrangement and the operation space of products in a system are saved; the operation is more convenient and labor-saving; the limiting area of the secondary locking directly acting on the primary locking position is far larger than that of the prior art, and the secondary locking function is more reliable; and the secondary locking has a simpler structure and is easy to produce and control quality.

The utility model discloses an insulating casing 3, 16 of plug 1 and socket 2 adopt plastics injection moulding, and the casing 4, 15 adopt the casting shaping in the shielding, and insulating casing and interior shielding casing accessible interference joint, pre-buried technique such as moulding plastics, ultrasonic bonding inseparable combination form compound casing together. The composite shell is well balanced and has the advantages of an all-plastic shell and an all-metal shell, and the insulating shell of the composite shell has the functions of plastic parts such as insulating protection, integrated clamping, corrosion resistance, light weight and the like; the integrally cast shielding inner shell provides an omnibearing shielding function and greatly enhances the strength of a key stress point; when the plug 1 and the socket 2 are plugged, the outer insulating shell 3 of the plug and the outer insulating shell 16 of the socket can realize the high-efficiency locking function of the plastic connector, meanwhile, the shielding inner shell 4 and the shielding inner shell 15 are in butt joint and overlapped and are stressed preferentially than the plastic shell in a vibration environment, and the structural strength of a product is greatly improved.

Claims

1. A compact electric connector comprises a plug (1) and a socket (2), wherein the plug (1) comprises an insulating outer shell (3) and a shielding inner shell (4), and the socket (2) comprises an insulating outer shell (16) and a shielding inner shell (15), and is characterized in that a clamping jaw (3.1) is arranged on the insulating outer shell (3) of the plug (1) in a plugging direction, and a clamping groove (16.1) and a boss (16.2) are arranged on the insulating outer shell (16) of the socket (2) in the plugging direction; in the inserting process, the clamping jaw (3.1) is lifted up when passing through the boss (16.2) and falls into the clamping groove (16.1) when in the inserting position to realize the primary locking of the plug (1) and the socket (2); when the plug (1) and the socket (2) are separated, the unlocking cantilever (3.2) of the clamping jaw (3.1) is pressed to be separated from the clamping groove (16.1) and slide out along the boss (16.2) to realize unlocking; the plug (1) is also sleeved with a locking ring (13) capable of rotating around the central axis of the plug, and the locking ring (13) is clamped on the insulating outer shell (3) of the plug (1); the locking ring (13) is provided with a locking cantilever (13.2), and the locking cantilever (13.2) is overlapped with a claw (3.1) of the plug by rotating the locking ring (13), so that the claw (3.1) is limited to be separated from the clamping groove (16.1), and a secondary locking function is realized.

2. The electrical connector according to claim 1, characterized in that the inner wall of the locking ring (13) is provided with a boss (13.1) and is clamped on the insulating outer shell (3) of the plug (1) through a guide clamping groove (3.10) arranged on the insulating outer shell (3); the guide clamping groove (3.10) is provided with a locking position cavity (3.3), an unlocking position cavity (3.4), an axial movement sliding rail (3.5) and a circumferential movement sliding rail (3.6); the boss (13.1) of the locking ring (13) is pressed into the unlocking position chamber (3.4) after passing through the axial movement sliding rail (3.5), the locking cantilever (13.2) of the locking ring is not overlapped with the jaw (3.1) of the plug, primary locking and unlocking can be realized through the matching of the jaw (3.1) and the clamping groove (16.1), and the secondary locking function is in an unlocking state; through rotating the locking ring (13), the boss (13.1) is separated from the unlocking position chamber (3.4) and enters the locking position chamber (3.3) after passing through the circumferential movement sliding rail (3.6), and at the moment, the locking cantilever (13.2) of the locking ring and the claw (3.1) of the plug form an up-and-down overlapping state, so that secondary locking is realized.

3. The electrical connector according to claim 1, wherein the insulating outer housing (3) of the plug (1) and the insulating outer housing (16) of the socket (2) are formed by plastic injection molding, the shielding inner housing (4) of the plug (1) and the shielding inner housing (15) of the socket (2) are formed by casting, and the insulating outer housing (3) and the shielding inner housing (4) of the plug (1) and the insulating outer housing (16) and the shielding inner housing (15) of the socket (2) are tightly combined together to form a composite housing through interference clamping, pre-embedded injection molding or ultrasonic welding.