CN202599994U

CN202599994U - Energization detection device for two-core American-standard plug

Info

Publication number: CN202599994U
Application number: CN 201220255414
Authority: CN
Inventors: 章鸿; 熊征伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-06-01
Filing date: 2012-06-01
Publication date: 2012-12-12
Anticipated expiration: 2022-06-01

Abstract

The utility model discloses an energization detection device for a two-core American-standard plug. The energization detection device is characterized by comprising a rear cover, a main body shell, energization elastic sheets and compaction elastic sheets, wherein the rear cover is buckled on the main body shell; two through slots for clamping a contact sheet of the detected two-core American-standard plug are formed in a whole formed by combining the rear cover and the main body shell; two groups of energization detection sheets are correspondingly arranged at the two through slots in the main body shell; each group of energization detection sheets consist of the energization elastic sheet and the compaction elastic sheet; and power lines are connected to the energization elastic sheets. The energization detection device has the advantages of simple structure, convenience in energization detection, high safety, low cost and the like.

Description

The U.S. mark of two cores plug energising pick-up unit

Technical field

The utility model relates to the electrical equipment checkout equipment, specifically is the U.S. mark of a kind of two cores plug energising pick-up unit.

Background technology

The maximum characteristics of the U.S. mark of present two cores plug are that the end at contact chip has two apertures, and the effect of aperture is that disposable special-purpose band is installed before product export, and the product that the U.S. mark of two cores plug is housed with representative was not used at before sales.Owing to tie up and tied band, when carrying out the examination and test of products, plug just can not adopt common socket to advance the energising check.

U.S. mark plug is in country and Taiwan uses such as the U.S., Canada, Japan, Brazil, Philippine, Thailand, and the U.S. mark of two cores plug is widely used in big small domestic appliance such as air-conditioning, refrigerator, washing machine, electric cooker, electromagnetic oven, electric frying pan, electric fan, electric iron, micro-wave oven, computer, submersible pump, light fixture, electric tool and the industrial electricity apparatus.China makes big country as household appliances; In actual production, regular meeting receives the order that adopts U.S. mark plug electrical appliance, is furnished with the electrical appliance of the U.S. mark of two cores plug; Dispatching from the factory; All be unable to do without energising in the sales process and detect this link, at present, the home market does not still have the U.S. mark of two special-purpose cores plug electrical equipment energising pick-up unit.

In order to solve energising detection problem, manufacturer is general at present adopts homemade frock to accomplish this work.Generally there is following common problem in the self-control frock, and profile is simple and crude, design is unreasonable, manufacturing is lack of standardization and many potential safety hazards are arranged, and manufacturing materials is very waste also, can not produce maintenance difficult etc. in enormous quantities.Particularly the copper sheet selected for use of the conducting parts branch of frock does not have elasticity, can cause the plug contact chip of loose contact or injury tested device; The edge property of making the frock material in addition by oneself is bad, easily electric leakage.

The utility model content

The purpose of the utility model is in order to overcome above-mentioned deficiency, provide a kind of simple in structure, energising is easy to detect, security good and the U.S. mark of two cores plug energising pick-up unit with low cost.

The technical scheme that the utility model is adopted to achieve these goals is following: the U.S. mark of a kind of two cores plug energising pick-up unit; Its primary structure comprises bonnet, body shell, energising shell fragment and compresses shell fragment; Said bonnet fastens on the body shell; And bonnet and body shell combine is formed with two grooves that are used to snap in the U.S. mark of tested two cores plug contact chip on the whole; Be positioned at two groove places in the said body shell and correspondingly be provided with two groups of energising detection lugs, every group of energising detection lug by the energising shell fragment with compress shell fragment and form, be connected to power lead on the shell fragment of wherein switching on.

The technical scheme that is more preferably in the utility model is that the solidus that said body shell is provided with the fixed power source line is buckled.

Further more optimal technical scheme is that said body shell is the L type in the utility model.

All correspondingly be provided with on further more said bonnet of optimal technical scheme and the body shell to be respectively applied in the utility model and lay energising shell fragment and the stopper slot that compresses shell fragment.

More further optimal technical scheme is said in the utility model is positioned at the outside power lead of body shell and is provided with sheath with the body shell joint.

The further more said energising shell fragment of optimal technical scheme all is to adopt tin-phosphor bronze to process with compressing shell fragment in the utility model.

The further more said power lead of optimal technical scheme passes through bolted on the energising shell fragment in the utility model.

The further more said threaded hole that is used to connect bonnet that on the body shell between two grooves, is provided with of optimal technical scheme in the utility model.

The utlity model has simple in structure, energising is easy to detect, security good and advantage such as with low cost.

Description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 is the local structure for amplifying synoptic diagram in groove place among Fig. 1.

Among the figure: the 1-bonnet, the 2-body shell, the 3-shell fragment of switching on, 4-compresses shell fragment, 5-groove, 6-solidus button, 7-stopper slot.

Embodiment

Further specify below in conjunction with the technical scheme of accompanying drawing, but the utility model is not limited in following embodiment the utility model.

As shown in Figure 1: the U.S. mark of a kind of two cores plug energising pick-up unit comprises bonnet 1, body shell 2, energising shell fragment 3 and compresses shell fragment 4.Said bonnet 1 fastens on the body shell 2; And bonnet 1 and body shell 2 combine is formed with two grooves 5 that are used to snap in the U.S. mark of tested two cores plug contact chip on the whole; Be positioned at two grooves, 5 places in the said body shell 2 and correspondingly be provided with two groups of energising detection lugs; Every group of energising detection lug by energising shell fragment 3 with compress shell fragment 4 and form, be connected to power lead on the shell fragment 3 of wherein switching on.

For the ease of dismounting and dustproof, body shell 2 adopts concavo-convex fastening with bonnet 1, and connects through screw.In bonnet 1 and body shell 2, stopper slot 7 is set, with the energising shell fragment, compress in the stopper slot that shell fragment is placed in main body, also has corresponding stopper slot from body shell, to come off on the bonnet, thereby guaranteed its steadiness in order to prevent it.Solidus button 6 is connected with body shell through bolt.

Power lead (band plug) selection standard spare passes the hole of body shell below, on the corner through solidus button 6 location, utilizes bolt to be connected with the shell fragment 3 of switching on.

The material of body shell and job operation

As main member; Be used for installing other part; With reference to the related standards of national socket, requirements such as that material selection polycarbonate (PC), this kind material not only can satisfy is heat-resisting, fire-retardant, corrosion-resistant, electrical insulating property; And good wearing quality, shock resistance mechanical property are all arranged in common serviceability temperature, generally adopt plastic pattern injection moulding.

The L type that the is shaped as box parts of body shell has the overall dimension of long 40mm, wide 50mm, high 55mm, compact conformation.In order to guarantee better seal property, body shell and bonnet adopt concavo-convex wall to fasten; In order to guarantee Forming Quality, the protruding wall thickness of housing is 1mm, highly is 2mm.Be designed with four obstructed screw holes of M3 simultaneously on four angles of body shell and connect body shell and bonnet.The hole of housing front lower place Φ 8 is a cable-through hole, and electrified wire (carrying plug) passes this hole and is connected with the good energising shell fragment of inner card, must install trunking additional, and the hole is sealed, and protects electric wire with dustproof with this.Be close to inner walls at commentaries on classics Xie Chuneng after the solidus button makes lead through cable-through hole, can not become flexible, 1.5mm * 1.5mm square column cooperates prefabricated groove in order to clamp shell fragment.Between the U.S. mark of two cores plug two interpolars apart from 12.7mm, the thickness of copper sheet is 1.45mm, in the energising testing process; Plug is laterally put into, and should guarantee that shell fragment contacts with the good of the two poles of the earth, guarantees that again plug can put into and take out easily; The length of the two poles of the earth collets (parts between two grooves) is very important with the size of inserting slit (width of groove), and through calculating, the length of the two poles of the earth collets is got 11mm; 11+1.45=12.45mm be slightly less than two interpolars apart from 12.7mm, the insertion slit is 2mm, is slightly larger than 1.45mm; This has just guaranteed can not scratch the plug copper sheet in the process of putting into and taking out, in order to avoid influencing the sale of product.By this design, through assembly simulation, this distance of installing between two shell fragments is about 0.5mm, and this has just guaranteed that shell fragment contacts with the good of the two poles of the earth, thereby has possessed good energising ability.The threaded hole of a M3 has been designed at the middle part of collets, is connected with bonnet through screw, and purpose is in order to improve the monolateral force-bearing situation of collets in the plug process, to improve the fiduciary level of product.For the ease of moulding and improve stress condition, part transition portion when carrying out structural design has all adopted round-corner transition in addition, and bonnet adopts datum hole or basic shaft system to form clearance fit, is convenient to make and assembling.

Surface treatment

Polishing or frosted are generally adopted in the body shell surface treatment, but two kinds of processing modes respectively have quality.The maximum benefit of polished surface is not stay ash, is convenient to cleaning; And shortcoming be to rub once in a while the little cut that causes can be very showy, matte surface is swiped once in a while and can not stayed obvious marks.But the maximum problem of matte surface is dirty easily, also trouble comparatively on the cleaning, more than two kinds of methods can select for use according to working environment.

Bonnet mainly plays sealing and dustproof effect, and the locating of the selecting for use of material, job operation and surface is consistent with body shell.With the body shell mating part be recess, this part main body wall thickness is 2mm, institute is porose be the countersunk head unthreaded hole, can guarantee that like this screw installs occiput and can not be projected into piece surface, the size at other position is consistent with the body shell cooperation.

The shell fragment of this device has two groups, two every group, is respectively and compresses shell fragment and energising shell fragment.Shell fragment is to guarantee the unobstructed current-carrying spare of electric current, must consider to reduce its thermal value.So need when design and selection mainly consider the factor of the following aspects with reference to related standards:

1. thickness effect, too thin electric ability is burnt easily; The resistance ratio of too thick copper spare self is bigger, and power consumption is bigger with heating.

2. enough elasticity and toughness to be arranged, however yielding.Even long-term the use also can keep suitable clamping force, guarantee plug and shell fragment close-coupled, reduce electric arc.

3. anti-oxidant, non-corrosive reduces the resistance that causes because of corrosion and increases and heating problem;

4. few riveted joint, preferably whole a slice copper spare further reduces riveting portion fracture and rivet heating situation.

Comprehensive above factor, shell fragment is selected the high-precision band of high-quality tin phosphor-copper (thickness 0.7mm, width 6.5mm) for use, according to illustrated dimensions, with the moulding of progressive die technology time processing, avoids too much riveting point.One end of energising shell fragment is provided with the lead mounting hole, adopts the bolt of M3 to carry out fastening to lead.Tin-phosphor bronze alloy outward appearance is aubergine, and maximum characteristics are exactly that its fatigue resistance is very high, and elasticity is extremely strong, and is corrosion-resistant, antioxygenic property is outstanding.Even after long-term the use, its surface can oxidized and corrosion yet.

The main effect of solidus button is the fixed power source line, and each size does not have strict tolerance, and selecting the PE plastics for use is that vinyon injection moulding gets final product, and this kind material has better elastic, corrosion resistance, electrical insulating property and characteristics such as shock-resistant.

Claims

1. plug energising pick-up unit is marked by core U.S.A; It is characterized in that primary structure comprises bonnet (1), body shell (2), energising shell fragment (3) and compresses shell fragment (4); Said bonnet (1) is fastened on the body shell (2); And bonnet (1) and body shell (2) combine is formed with two grooves (5) that are used to snap in the U.S. mark of tested two cores plug contact chip on the whole; Be positioned at two grooves (5) in the said body shell (2) and locate correspondingly to be provided with two groups of energising detection lugs, every group of energising detection lug is by energising shell fragment (3) and compress shell fragment (4) and form, and the shell fragment of wherein switching on (3) is used for the energized line.

2. the U.S. mark of two cores according to claim 1 plug energising pick-up unit is characterized in that the solidus that said body shell (2) is provided with the fixed power source line buckles (6).

3. the U.S. mark of two cores according to claim 1 plug energising pick-up unit is characterized in that said body shell (2) is the L type.

4. the U.S. mark of two cores according to claim 1 plug energising pick-up unit is characterized in that all correspondingly being provided with on said bonnet (1) and the body shell (2) being respectively applied for to lay and switches on shell fragment (3) and compress the stopper slot (7) of shell fragment (4).

5. the U.S. mark of two cores according to claim 1 plug energising pick-up unit is characterized in that saidly being positioned at the outside power lead of body shell (2) and being provided with sheath with body shell (2) joint.

6. the U.S. mark of two cores according to claim 1 plug energising pick-up unit is characterized in that said energising shell fragment all is to adopt tin-phosphor bronze to process with compressing shell fragment.

7. the U.S. mark of two cores according to claim 1 plug energising pick-up unit is characterized in that said power lead passes through bolted on the energising shell fragment.

8. the U.S. mark of two cores according to claim 1 plug energising pick-up unit is characterized in that the said body shell (2) that is positioned between two grooves (5) is provided with the threaded hole that is used to connect bonnet (1).