CN2153866Y - Three-pole power supply plug - Google Patents
Three-pole power supply plug Download PDFInfo
- Publication number
- CN2153866Y CN2153866Y CN 93209921 CN93209921U CN2153866Y CN 2153866 Y CN2153866 Y CN 2153866Y CN 93209921 CN93209921 CN 93209921 CN 93209921 U CN93209921 U CN 93209921U CN 2153866 Y CN2153866 Y CN 2153866Y
- Authority
- CN
- China
- Prior art keywords
- base frame
- inner base
- pole
- hole
- earth terminal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a three-pole power supply plug. A circular through hole is arranged above an inner seat body which is an integral forming; the upper and the lower edges of the through hole respectively extend to form upper and lower tongue pieces; a convex block which is supplied for being embedded and provided with an elliptical hole on a ground terminal when the ground terminal is plugged; two sides of the lower part of the inner seat body are respectively provided with one convex piece of a groove channel; the opposite inner side faces of the two convex pieces of the groove channels are provided with two groups of convex blocks which are corresponding and are supplied for being embedded, supported, and provided with corresponding grooves on positive-pole and negative-pole terminals when the positive-pole and the negative-pole terminals are inserted.
Description
The utility model relates to attaching plug, and specifically, the utility model is the novel three-electrode power plug that has improved inner base frame about a kind of.
Three-electrode power plug is in the use because of than the tool fail safe, so be widely used in the general electrical equipment.The present common three-electrode power plug cut-away view that is shown in Figure 6, wherein, the top of inner base frame 6 forms a cancave cambered surface 61, and the appropriate position on the cancave cambered surface 61 is provided with a tenon 62, and it can cooperate the plug-in card location with the hole 31 of circular ground terminal 3 ends; The both sides of inner base frame 6 respectively are provided with fastening piece 63 again, can cooperate positive and negative terminal 4 and the 5 terminal grooves that are provided with 41,51 to form the inlay card location, and mat one sheath 7 is sleeved on the periphery of inner base frame 6 in addition, in the hope of strong fix earth terminal 3 and anode and cathode terminals 4,5.Fit fixed form system utilizes two grooves 64 of inner base frame 6 bottoms, forms the inlay card fixation with two beads 71 that cooperate sheath inside; Inner base frame 6 and sheath 7 behind the assembling fit must just can form the general common three-electrode power plug outward appearance that is similar to Fig. 5 again through the injection mo(u)lding manufacture process of coated insulation material.
Investigate the structure and the manufacture process of above-mentioned known three-electrode power plug, be that mat manually is assemblied in earth terminal 3 and anode and cathode terminals 4,5 on the inner base frame 6 in the production and assembly, come fit inner base frame 6 and earth terminal 3 and anode and cathode terminals 4,5 by sheath 7 again, this kind mode of operation causes too big difficulty for skilled assembling person is perhaps unlikely, and delay is just arranged on installation time slightly; Then certainly will quite require great effort to unskilled assembling person.Moreover above-mentioned plug must be established a sheath 7 at fit on more and come fit inner base frame 6, also is the principal element that causes waste of material and cost to increase.
Therefore, the purpose of this utility model is to provide a kind of three-electrode power plug above-mentioned traditional type attaching plug shortcoming, that have the inner base frame that improves structure that overcomes.
The utility model is embodied as: a kind of three-electrode power plug, just comprise, negative terminal and earth terminal and integrated inner base frame, it is characterized in that, this inner base frame top is provided with a manhole, on this through hole, on lower edge extends respectively, lower tongue, be provided with on this lower tongue one when pegging graft for earth terminal with its on the elliptical aperture inlay card projection of locating mutually, both sides, inner base frame below respectively are provided with a conduit lug, the relative inner face of described two lugs be provided with two groups corresponding, go up the corresponding grooves inlay card support projection of locating mutually with it when inserting for anode and cathode terminals.
Attaching plug product of the present utility model has the advantage of enhancing productivity, reducing production costs.The utility model is because convenience and the retain strength when having improved inner base frame and earth terminal and anode and cathode terminals in design and assembling, so both can assemble fast, can give up guard component because of having necessary retain strength again, directly carry out injection mo(u)lding and form plug with the coated insulation material.And be provided with in production efficiency that improves the assembling of planting and minimizing element (that is: sheath),, reach the purpose that is suitable for a large amount of productions so can reduce cost.
About structure content of the present utility model and technological means that is adopted and purpose, existing conjunction with figs. is described in detail as follows:
Fig. 1 is the structure chart of the inner base frame of three-electrode power plug of the present utility model.
The stereogram that Fig. 2 analyses and observe for the part of Fig. 1.
The plane graph that Fig. 3 analyses and observe for the part of Fig. 1.
Fig. 4 is the sectional block diagram of inner base frame when each terminal of assembling of three-electrode power plug of the present utility model.
Fig. 5 is the outside drawing of three-electrode power plug.
Fig. 6 is known three-electrode power plug internal structure exploded view.
Fig. 7 is known three-electrode power plug inner base frame and sheath assembly drawing.
Fig. 1,2 and 3 is the structure chart of the inner base frame 1 of attaching plug of the present utility model, this inner base frame 1 is to adopt plastics through one-body molded making, inner base frame 1 top is provided with a manhole 11, the through hole 11 upper limbs partial-length that extends internally forms upper tongue 2, the through hole 11 lower edges partial-length that also extends internally forms lower tongue 14, the appropriate position of lower tongue 14 end faces is provided with a projection 141, in the time of can inserting for earth terminal 3 with its elliptical aperture 31 mutually inlay card locate.Again, inner base frame 1 below each side is provided with a conduit 12,13, and the medial extremity of conduit 12,13 is open state, conduit 12,13 outboard ends then except that the bar shaped hole slot 121,131 that middle body is offered all the other for closing the envelope entity.Hole slot 121,131 is for positive and negative electrode terminal 4,5 interspersed passing through, hole slot 121,131 both sides respectively are respectively equipped with two parallel lugs 15, these lug 15 relative inner face appropriate positions are provided with two corresponding projections 151, in the time of can inserting for positive and negative electrode terminal 4,5 with the groove 41,51 of its opposite position mutually inlay card support and locate.
The assembling supporting relation of earth terminal 3 and positive and negative electrode terminal 4,5 and inner base frame 1 can be further by Fig. 4 explanation.During assembling, earth terminal 3 is inserted through hole 11, and make the elliptical aperture 31 of earth terminal 3 ends and the projection 141 mutual inlay cards of lower tongue 14 end faces, earth terminal 3 is by the support of through hole 11, upper tongue 2 and lower tongue 14 at this moment, there are the lower tongue projection 141 and the inlay card of earth terminal elliptical aperture 31 to locate again, promptly form the firm support power of certain degree.In like manner, positive and negative electrode terminal 4,5 is to be inserted in its hole slots 121,131 by interior seat 1 both sides conduit 12,13 respectively, and make detent 41,51 that positive and negative electrode terminal 4,5 do not hold respectively with the projection 151 mutual inlay cards of lug 15 medial surface opposite positions.Positive and negative electrode terminal 4,5 has the projection 151 and the inlay card of hole slot 121,131 to locate again by the support of lower wall on hole slot 121,131 and the conduit 12,13 at this moment, is enough to provide the firm support power of positive and negative electrode terminal 4,5 with certain degree.
Owing to had the firm support power of certain degree after earth terminal 3 and positive and negative terminal 4,5 and inner base frame 1 are pegged graft and assembled in the utility model, must there be other guard component packing its assembly directly can be placed again to do in the shaping mould Overmolded, forms attaching plug outward appearance as shown in Figure 5.
What this emphasized be, the utility model has been made suitable improvement design at the grafting supporting construction of inner base frame and earth terminal, anode and cathode terminals, with convenience and the retain strength that its assembling is provided, and make it directly insert shaping mould and enter the processing technology of coating and injection moulding moulding.This kind design both can be saved the production and processing time, can remove unnecessary element (as sheath) again, reduced material cost, on the meaning of enhancing productivity, had its practicality and novelty.
Claims (1)
1, a kind of three-electrode power plug, comprise positive and negative electrode terminal and earth terminal and integrated inner base frame, it is characterized in that, this inner base frame top is provided with a manhole, the upper and lower edge of this through hole extends upper and lower tongue piece respectively, be provided with on this lower tongue one when pegging graft for earth terminal with its on the elliptical aperture inlay card projection of locating mutually, both sides, inner base frame below respectively are provided with a conduit lug, the relative inner face of described two lugs be provided with two groups corresponding, go up the corresponding grooves inlay card support projection of locating mutually with it when inserting for anode and cathode terminals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93209921 CN2153866Y (en) | 1993-04-17 | 1993-04-17 | Three-pole power supply plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93209921 CN2153866Y (en) | 1993-04-17 | 1993-04-17 | Three-pole power supply plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2153866Y true CN2153866Y (en) | 1994-01-19 |
Family
ID=33791976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93209921 Expired - Fee Related CN2153866Y (en) | 1993-04-17 | 1993-04-17 | Three-pole power supply plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2153866Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7553171B2 (en) | 2007-07-10 | 2009-06-30 | Hon Hai Precision Ind. Co., Ltd. | Power plug assembly with improved connector configuration |
| US7771214B2 (en) | 2007-12-29 | 2010-08-10 | Hon Hai Precision Ind. Co., Ltd. | Electrical connector having improved terminal retainer |
-
1993
- 1993-04-17 CN CN 93209921 patent/CN2153866Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7553171B2 (en) | 2007-07-10 | 2009-06-30 | Hon Hai Precision Ind. Co., Ltd. | Power plug assembly with improved connector configuration |
| US7771214B2 (en) | 2007-12-29 | 2010-08-10 | Hon Hai Precision Ind. Co., Ltd. | Electrical connector having improved terminal retainer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |