CN2669410Y

CN2669410Y - Connection type power-supply-plug intenral housing structure with prolonged tail part

Info

Publication number: CN2669410Y
Application number: CNU03268004XU
Authority: CN
Inventors: 黄子成
Original assignee: SONGGANG YISHENG PRODUCT MANUF
Current assignee: SONGGANG YISHENG PRODUCT MANUF
Priority date: 2003-07-23
Filing date: 2003-07-23
Publication date: 2005-01-05
Anticipated expiration: 2013-07-23

Abstract

The utility model relates to a connection type power-supply-plug internal housing structure with prolonged tail part which is characterized in that a plug internal housing 10 is formed by the splicing of an upper housing 20 and a lower housing 30; the upper housing 20 is composed of a front housing plate 21 presenting approximately L-shaped and an upper housing plate 22; the lower housing 30 is a slot-shaped body, and the internal space of the slot body are divided into three installation grooves 32 by two longitudinal partition plates 31; three electrical connection terminals 40 are respectively arranged in the three installation grooves; each electrical connection terminal is formed by the riveting of a U-shaped jack 41, a connection piece 42 integral with the electrical connection terminal, and a wire 50; one end of the tail part of the internal housing far from the jack is an extended tail part which coats the electrical connection terminal, the connection part of the wire, and exposed metallic thread. Because the utility model separates three electrical connection terminals of different polarities and is provided with an extended tail part on the back end of the internal housing, the safety of using is ensured; besides, because the upper and lower housings of the internal housing are connectedin a splicing mode, production and assembling are convenient and rapid.

Description

Has shell structure in the plug-in type attaching plug that prolongs afterbody

Technical field

The utility model relates to the attaching plug that connects power supply and institute's electrical appliance, particularly relates to a kind of shell structure in the plug-in type attaching plug that prolongs afterbody that has that guarantees that insulation property are good and use is safer.

Background technology

At present, along with social development and technological progress, the kind of household electrical appliance is increasing, and quality improves constantly, and it has brought convenience and joy for people's life, and constantly influences and changing people's life.General electrical equipment all need be connected with power supply by an attaching plug in use, to carry out power source conversion, though attaching plug in the market is of a great variety, form is different, but reason owing to structure or technology, some product can not guarantee the good insulation performance performance, thereby often has plug that the electric leakage accident takes place in use, causes damage for user's lives and properties.The afterbody of the inner casing of existing power supply plug is all shorter, make that the riveting portion of electric connection terminal and outer lead can not all be coated in, and the wire of some lead also part is exposed, thereby very easily cause electric shock accidents.

Summary of the invention

The utility model is intended to guarantee the safety in utilization of attaching plug and the convenience of production and assembly, and a kind of shell structure in the plug-in type attaching plug that prolongs afterbody that has that L, N, E three-phase electricity splicing ear are insulated fully and separate is provided.

For achieving the above object, the utility model provides a kind of shell structure in the plug-in type attaching plug that prolongs afterbody that has, it is characterized in that, plug inner casing 10 is pegged graft with lower casing 30 by upper casing 20 and is formed, and inner casing is that coupling part and exposed metal line with electric connection terminal and lead is coated on interior prolongation afterbody away from afterbody one end of jack.

Upper casing 20 constitutes by being roughly L shaped preceding coverboard 21 and last coverboard 22, is provided with three jacks 211 on its preceding coverboard 21, and preceding coverboard inboard is provided with joint pin 212; The cross section of last coverboard 22 is trapezoidal, is provided with longitudinal spacing guide groove 221 in its right and left inboard.

Lower casing 30 is a groove shape body, the space is separated into the mounting groove 32 of three mutually insulateds that L, N, E three-phase electricity splicing ear are installed in its cell body by two longitudinal baffles 31, groove 321 and pit 322 before three mounting grooves are divided into by lateral partitions 33, dividing plate 33 tops have electric connection terminal locating notch 331, respectively be provided with a feather key 311 that cooperates with the guide groove 221 of upper casing 20 on the lateral surface of two dividing plates 31, portion is provided with the connecting hole 34 that cooperates with the joint pin 212 of upper casing in the forward bottom of lower casing.

In three mounting grooves 32 of lower casing 30, a slice electric connection terminal 40 is housed respectively, every splicing ear by U-shaped socket 41 and with it the brace 42 of one form with lead 50 riveted joints, its riveting portion places in the pit 322 of mounting groove 32.

Upper casing 20 is pegged graft with cooperatively interacting of feather key 311 with connecting hole 34 and limit guide groove 221 by joint pin 212 with lower casing 30 and is formed inner casing 10.

Good effect of the present utility model is, owing to separated fully by insulating barrier at the electric connection terminal of inner casing Inner Front End with three opposed polarities, can avoid producing high pressure between each polarity electric connection terminal; Also owing to be provided with the afterbody of prolongation in the inner casing rear end, can be coated on the riveting portion and the exposed metal line of lead and electric connection terminal in the inner casing fully, therefore can avoid short circuit and electric shock accidents to take place, also can not cause loose contact, thereby guarantee the fail safe of using because of external force makes the wire interconnecting piece position produce to get loose; Simultaneously, because the upper and lower shell of inner casing is socket connection, thereby feasible production and easy to assembly and quick.

Description of drawings

Fig. 1 is a parts exploded perspective schematic diagram of the present utility model.

Fig. 2 is a upper and lower shell connection diagram of the present utility model.

Fig. 3 is a upper casing structural upright schematic diagram of the present utility model, and wherein Fig. 3 A is its inside structure schematic diagram; Fig. 3 B is its outboard structure schematic diagram.

Fig. 4 is a lower casing structural upright schematic diagram of the present utility model, and wherein Fig. 4 A is its forward sight structural representation; Fig. 4 B is TV structure schematic diagram thereafter.

Fig. 5 is an electric connection terminal structural upright schematic diagram of the present utility model.

Embodiment

Consult Fig. 1, of the present utility model have shell structure in the plug-in type attaching plug that prolongs afterbody and comprise plug inner casing 10 and be contained in electric connection terminal 40 in the inner casing, as shown in Figure 2, plug inner casing 10 is pegged graft with lower casing 30 by upper casing 20 and is formed, wherein upper casing 20 structures as shown in Figure 3, it is to constitute by being roughly L shaped preceding coverboard 21 and last coverboard 22, is provided with three jacks 211 on preceding coverboard 21, and preceding coverboard inboard is provided with joint pin 212 (seeing Fig. 3 A).Last coverboard 22 is that the outward-dipping inclined-plane by the plane at top and both sides constitutes (seeing Fig. 3 B), and its cross section is trapezoidal, and the inboard on two inclined-planes is provided with longitudinal spacing guide groove 221 (seeing Fig. 3 A) about it.Described lower casing 30 structures as shown in Figure 4, it is a groove shape body, the space is separated into the mounting groove 32 of three mutually insulateds in its cell body by two plastics longitudinal baffles 31, be respectively applied for L, N, E three-phase electricity splicing ear are installed, the mounting groove position of the E utmost point is higher wherein, and the mounting groove of both sides L, the N utmost point is lower.Groove 321 and pit 322 before three mounting grooves are divided into by lateral partitions 33, every dividing plate 33 tops have an electric connection terminal locating notch 331, respectively be provided with a strip and block feather key 311 that cooperates with the guide groove 221 of upper casing 20 on the lateral surface of two longitudinal baffles 31, in the forward bottom of lower casing portion, promptly middle mounting groove bottom is provided with the connecting hole 34 (seeing Fig. 4 A) that cooperates with the joint pin 212 of upper casing.As Fig. 1, in three mounting grooves 32 of lower casing 30, a slice electric connection terminal 40 is housed respectively, its structure as shown in Figure 5, every splicing ear by U-shaped socket 41 and with it the brace 42 of one form by 43 riveted joints of riveted joint cover with lead 50, its U-shaped socket 41 places the preceding groove 321 of lower casing, and the front end of socket places in the jack 211 of the preceding coverboard of upper casing.Brace 42 is embedded in the breach 331 on the lateral partitions 33 of lower casing, and its riveting portion then places in the pit 322 of mounting groove 32.Upper casing 20 inserts in the connecting holes 34 by connecting post 212 with the lower casing 30 of the electric connection terminal 40 of packing into, and the limit guide groove 221 of upper casing is pushed ahead along the feather key 311 of lower casing put in place and realized that plug-in type connects (see figure 2), and forms inner casing 10.This inner casing can be packed in the plug body and be formed complete attaching plug.

Main points of the present utility model also are, with the afterbody of inner casing, promptly inner casing forms and prolongs afterbody away from the end lengthening of jack, make that the coupling part of electric connection terminal and lead and exposed metal line are coated in, bad to avoid electric property.

Claims

1, a kind of interior shell structure of plug-in type attaching plug with prolongation afterbody, it is characterized in that, plug inner casing (10) is pegged graft by upper casing (20) and lower casing (30) and is formed, and inner casing is that coupling part and exposed metal line with electric connection terminal and lead is coated on interior prolongation afterbody away from afterbody one end of jack.

2, the interior shell structure of plug-in type attaching plug with prolongation afterbody according to claim 1, it is characterized in that, described upper casing (20) constitutes by being roughly L shaped preceding coverboard (21) and last coverboard (22), be provided with three jacks (211) on its preceding coverboard (21), preceding coverboard inboard is provided with joint pin (212); The cross section of last coverboard (22) is trapezoidal, is provided with longitudinal spacing guide groove (221) in its right and left inboard.

3, the interior shell structure of plug-in type attaching plug with prolongation afterbody according to claim 1, it is characterized in that, described lower casing (30) is a groove shape body, the space is separated into by two longitudinal baffles (31) L is installed in its cell body, N, the mounting groove (32) of three mutually insulateds of E three-phase electricity splicing ear, three mounting grooves are divided into preceding groove (321) and pit (322) by lateral partitions (33), dividing plate (33) top has electric connection terminal locating notch (331), respectively be provided with a feather key (311) that cooperates with the guide groove (221) of upper casing (20) on the lateral surface of two dividing plates (31), be provided with the connecting hole (34) that cooperates with the joint pin (212) of upper casing in the forward bottom of lower casing portion.

4, the interior shell structure of plug-in type attaching plug with prolongation afterbody according to claim 1, it is characterized in that, in three mounting grooves (32) of lower casing (30), a slice electric connection terminal (40) is housed respectively, every splicing ear by U-shaped socket (41) and with it the brace of one (42) form with lead (50) riveted joint, its riveting portion places in the pit (322) of mounting groove (32).

5, the interior shell structure of plug-in type attaching plug with prolongation afterbody according to claim 1, it is characterized in that upper casing (20) is pegged graft with cooperatively interacting of feather key (311) with connecting hole (34) and limit guide groove (221) by joint pin (212) with lower casing (30) and formed inner casing (10).