CN2439125Y

CN2439125Y - Triple-pole power plug

Info

Publication number: CN2439125Y
Application number: CN 00247121
Authority: CN
Inventors: 徐顺春
Original assignee: SANHUI ELECTRIC WIRE FACTORY SONGGANG TOWN BAOAN DISTRICT
Current assignee: SANHUI ELECTRIC WIRE FACTORY SONGGANG TOWN BAOAN DISTRICT
Priority date: 2000-08-22
Filing date: 2000-08-22
Publication date: 2001-07-11
Anticipated expiration: 2010-08-22

Abstract

The utility model relates to a triple-pole power plug which comprises a plastic cement body 1 and a positive and a negative terminals 21, 22 which are arranged on the plastic cement body 1, wherein, a grounding copper sheet 3 with a bearing hole 31 is arranged on the plastic cement body 1 between the positive and the negative terminals; the grounding copper sheet 3 is attached and sinuously clamped with the plastic cement body 1, support columns 12, 13 of the plastic cement body and a lug 16; the end surfaces of the support columns 12, 13 of the plastic cement body are provided with notches 41, 42 which are match with the width of the terminal of the grounding copper sheet 3, and the outer edges of the notches bulge upwards. The triple-pole power plug has the advantages that the assembly of the grounding copper sheet is convenient, positioning is firm, mould processing is simplify, injection is favorable, and finished products are reliable and perfect.

Description

Three-electrode power plug

The utility model relates to electric device, is specifically related to single-phase three-electrode power plug, relates in particular to the improvement that also includes the three-electrode power plug of ground connection copper sheet except that establishing positive and negative terminal.

At present, single-phase three-electrode power plug is widely used, roughly is divided into two kinds: first kind is except that the positive and negative electrode terminal, and is provided with the common three-electrode power plug of an earth terminal.Second kind is the three-electrode power plug that is widely used in European countries, promptly on plug plastic body plate, just establish, negative terminal forms terminal base, and just, establish a ground connection copper sheet between the negative terminal, wear one on this ground connection copper sheet and hold the hole, during use, this plug inserts in the corresponding socket, the protruding earth terminal that is provided with in hole and the respective socket that holds of ground connection copper sheet coincide, the two is used, reach the result of use of corresponding three utmost point jacks of three gate terminal, the manufacture method of this kind three-electrode power plug has two kinds: a kind of is earlier will be just, negative terminal places the correspondence position of mould an actor's rendering of an operatic tune as inserts, injection molded just has, negative terminal is connected the terminal base of one with plastic body, again the ground connection copper sheet is utilized kludge and terminal base punching press integrator, in addition three binding posts that are provided with on the connection ground connection copper sheet after three utmost point electric wire pressings are placed an actor's rendering of an operatic tune of this three-electrode power plug outer casing mold as inserts, injection molded and become complete three-electrode power plug.Another kind be with positive and negative electrode terminal and ground connection copper sheet as inserts with the correspondence position that places mould an actor's rendering of an operatic tune, injection molded has positive and negative electrode terminal, ground connection copper sheet are connected one with plastic body terminal base, in addition place mould an actor's rendering of an operatic tune of this three-electrode power plug shell as inserts, equally injection molded and become complete three-electrode power plug being connected three binding posts that are provided with on the ground connection copper sheet after three utmost point electric wire pressings.

In order to prevent the injection moulding crackle, be that the corner place presents similar crack wire flaw, even insufficient fill and influence the quality of finished product, removed the plate body that is arranged on plastic body and with the coign of the ground connection copper sheet bending two ends clamping place both sides, support column place of anode and cathode terminals opposing face, the colloid back-up block is contracted in crooked clamping place of copper sheet the inside.

Because the ground connection copper sheet needs to attach driving fit with terminal base, so that injection molded, therefore the ground connection copper sheet is crooked concavo-convexly is close to the plastic body plate body or bends in the slotted eye of plastic body plate body and clamping two support columns are convenient to fix, the ground connection copper sheet is to adopt its two terminal osculum that is provided with to be buckled in the little protruding top of support column end face setting and locate, it is indefinite to exist the ground connection copper sheet to vacillate now to the left, now to the right like this, be not easy to assembling, shortcomings such as mould operation and difficulty increase.

The purpose of this utility model is to provide a kind of three-electrode power plug, and it is insecure because of ground connection copper sheet location to overcome prior art, and assembling is inconvenient, has increased deficiencies such as the mould operation of terminal base and die cost.

The purpose of this utility model is to realize like this, construct a kind of three-electrode power plug, comprise plastic body 1 and just be arranged on 11 liang of corner places of plastic body plate body symmetry,

negative terminal

21,22, and just described, negative terminal 21, be provided with the ground connection copper sheet 3 that holds hole 31 on the plastic body 1 between 22, the fixedly employing of described ground connection copper sheet 3 attaches, crooked clamping plastic body 1 and be arranged on just described, negative terminal 21, the plastic body support column 12 of 22 place plastic body plate body 11 opposing faces, 13, it is characterized in that, at described plastic body support column 12,13 end face is provided with the breach 41 that the terminal width with described ground connection copper sheet 3 is complementary, 42, and the breach outer raises up, establish a projection 16 at the backward end of plastic body support column 13, be hidden in copper sheet 3 corresponding crooked clamping place the insides.

A kind of three-electrode power plug that provides according to the utility model, it is characterized in that described plastic body plate body 11 is provided with described and holds the corresponding square hole 14 in hole 31 and for the perforation 15 by, fixing described ground connection copper sheet 3 of the binding post 32 of described ground connection copper sheet 3.

A kind of three-electrode power plug according to the utility model provides is characterized in that, the end of described ground connection copper sheet 3 is provided with is convenient to crooked small

square hole

33,34.

A kind of three-electrode power plug that provides according to the utility model, it is characterized in that, when making, positive and

negative electrode terminal

21,22 is placed the correspondence position of mould an actor's rendering of an operatic tune as inserts, injection molded has positive and

negative electrode terminal

21,22 is connected one with plastic body 1 terminal base.

A kind of three-electrode power plug that provides according to the utility model, it is characterized in that, when making, the ground connection copper sheet is utilized kludge and terminal base punching press integrator, in addition three binding posts that connect setting on the ground connection copper sheet 3 after three utmost point electric wire pressings are placed an actor's rendering of an operatic tune of this three-electrode power plug outer casing mold as inserts, injection molded and become complete three-electrode power plug.

A kind of three-electrode power plug according to the utility model provides is characterized in that, in use, the hole 31 of holding of ground connection copper sheet 3 coincide with the interior protruding earth terminal that is provided with of respective socket, and the two is used,

Realize a kind of three-electrode power plug that the utility model provides, have that the ground connection copper sheet does not swing and advantages such as firm position, easy to assembly, the mould operation that reduced terminal base and die cost.

Below in conjunction with drawings and Examples the utility model is further specified:

Fig. 1 is the terminal base of the utility model three-electrode power plug and the three-dimensional exploded view of ground connection copper sheet;

Fig. 2 is the combination stereogram of three-electrode power plug of the present utility model.

The three-electrode power plug that the utility model provides, as shown in the figure, a plastic body 1 is arranged, the conduction insulated from each other that is provided with at symmetry place, two corner places of the plastic body plate body 11 of plastic body 1 just,

negative terminal

21,22, and just, negative terminal 21, be provided with the ground connection copper sheet 3 that holds hole 31 on the plastic body 1 between 22, ground connection copper sheet 3 adopts and attaches, crooked clamping plastic body 1 and just being arranged on, negative terminal 21, the plastic body support column 12 of 22 place plastic body plate body 11 opposing faces, 13 mode is located, plastic body plate body 11 is provided with the square hole 14 corresponding with holding hole 31 and passes through for the binding post 32 of ground connection copper sheet 3, the perforation 15 of dead earth copper sheet 3, at plastic body support column 12,13 end face is provided with the breach 41 that is complementary with ground connection copper sheet 3 terminal width, 42, prevent that ground connection copper sheet 3 from playing pendulum, and the breach outer raises up, terminal correspondence at ground connection copper sheet 3 is provided with the small square hole 33 of being convenient to bending, 34, help dead earth copper sheet 3, supporting lug 16 is ensconced copper sheet 3 crooked clamping place the insides simultaneously, plastic cement in mold cavity melts that material Yin Gaowen is molten condition and when flowing, nothing is squeezed and is confluxed, or the situation of insufficient fill.

When making, positive and

negative electrode terminal

21,22 is connected one with plastic body 1 terminal base; The ground connection copper sheet is utilized kludge and terminal base punching press integrator, in addition three binding posts that connect setting on the ground connection copper sheet 3 after three utmost point electric wire pressings are placed an actor's rendering of an operatic tune of this three-electrode power plug outer casing mold as inserts, injection molded and become complete three-electrode power plug.

In use, this plug inserts in the corresponding socket, and the hole 31 of holding of ground connection copper sheet 3 coincide with the interior protruding earth terminal that is provided with of respective socket, and the two is used.

Implement a kind of three-electrode power plug that the utility model provides, the ground connection copper sheet is easy to assembly, firm position, has simplified Mould Machining, helps injection moulding, makes finished product reliable more and perfect.

Claims

1, a kind of three-electrode power plug, comprise plastic body (1) and just be arranged on plastic body plate body (11) two corner place symmetries, negative terminal (21), (22), and just described, negative terminal (21), (22) be provided with the ground connection copper sheet (3) that holds hole (31) on the plastic body between (1), described ground connection copper sheet (3) adopts and attaches, crooked clamping plastic body (1) and be arranged on just described, negative terminal (21), (22) the plastic body support column (12) of place plastic body plate body (11) opposing face, (13) mode fixes, it is characterized in that, at described plastic body support column (12), (13) end face is provided with the breach (41) that the terminal width with described ground connection copper sheet (3) is complementary, (42), and the breach outer raises up, and is provided with the crooked clamping place the inside that a projection (16) is hidden in ground connection copper sheet (3) in plastic body plate body (11) front.

2, according to right 1 described three-electrode power plug, it is characterized in that described plastic body plate body (11) is provided with and the described perforation (15) of holding the corresponding square hole (14) in hole (31) and passing through, fixing described ground connection copper sheet (3) for the binding post (32) of described ground connection copper sheet (3).

According to right 1 described three-electrode power plug, it is characterized in that 3, (3 end is provided with and is convenient to crooked small square hole (33), (34) described ground connection copper sheet.

4, according to right 1 described three-electrode power plug, it is characterized in that, when making, positive and negative electrode terminal (21), (22) are placed the correspondence position of mould an actor's rendering of an operatic tune as inserts, injection molded has positive and negative electrode terminal (21), (22) are connected one with plastic body (1) terminal base.

5, according to right 1,4 described three-electrode power plugs, it is characterized in that, the ground connection copper sheet is utilized kludge and terminal base punching press integrator, in addition place an actor's rendering of an operatic tune of this three-electrode power plug outer casing mold, injection molded as inserts connecting three binding posts that ground connection copper sheet (3) goes up setting after three utmost point electric wire pressings.

According to right 1 described three-electrode power plug, it is characterized in that 6, in use, the earth terminal that projection is set in hole (31) and the respective socket that holds of ground connection copper sheet (3) coincide.