CN100472889C

CN100472889C - Plug for electric converter and mfg. method thereof

Info

Publication number: CN100472889C
Application number: CNB2005100617286A
Authority: CN
Inventors: 郑迅江
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-11-29
Filing date: 2005-11-29
Publication date: 2009-03-25
Anticipated expiration: 2025-11-29
Also published as: CN1787293A

Abstract

This invention relates to a plug pin used on a supply converter and its manufacturing method, in which, the plug pin includes conducting pins and a jacket characterizing in a hollow integrated one, the method includes: cutting a copper tube into necessary blanks based on the length of the armed plug pin, 2, putting the above mentioned blank into a groove of a shaped mold to be punched into a middle blank with a reduced bottom by a punch of the upper mold, 3, putting the middle blank into step-like groove holes of a shaped mold to be punched to a necessary plug pin with the upper mold punch, since applying a hollow structure and an integrated jacket and plug pin, it saves materials.

Description

A kind of latch and preparation method thereof that is used on the power supply changeover device

Technical field

The present invention relates to a kind of latch and manufacture method thereof, especially refer to a kind of manufacture method that is used for latch on the power supply changeover device and this latch.

Background technology

Because some electrical appliance has and unmatched plug of use occasion or power supply, use therefore can for different occasions such as house, travelling or office and bring many inconvenience.For this reason, people have just designed various power supply changeover device, it generally includes housing and the plug and socket that is positioned on the housing, wherein plug and socket is by being realized by the latch that is inserted on the housing, promptly this latch is by forming as the conductive pin of plug with as the conduction sleeve of socket, during making, earlier become as shown in Figure 7 conductive pin, just be processed into bar-shaped end, the necking part of usefulness be installed and for the joint pin that is connected usefulness with the conduction sleeve with the copper rod metalworking; And then become the bottom to have the conduction sleeve of connecting hole by the copper strips punch process, as shown in Figure 8; Joint pin with conductive pin is inserted in the connecting hole of conduction sleeve bottom at last, with welding or riveted way the two is fixed into one, obtains latch as shown in Figure 9.During use, in the socket on plug (being conductive pin) the insertion body of wall, and the electrical appliance plug inserts on the socket (promptly conduct electricity sleeve) of the power supply changeover device match with it, thereby satisfies the power supply connection request of electrical appliance, therefore brings great convenience to life.But in use find: because the contact pin in the above-mentioned latch adopts the solid copper bar to process, and be processed into one by welding or riveted joint again between itself and the conduction sleeve, therefore such latch has the defective of cost of manufacture height, inconvenience processing, this welding simultaneously or riveted joint mode have also influenced the electric property of power supply changeover device to a certain extent, therefore, latch of the prior art still has unsatisfactory part in structure and manufacture craft, need await further perfect.

Summary of the invention

First technical problem to be solved by this invention is the present situation at prior art, and the latch that is used for power supply changeover device that a kind of material is economized, cost is low is provided.

Second technical problem to be solved by this invention is the defective at prior art, provides a kind of easy to make and can guarantee the manufacture method of the latch that is used for power supply changeover device of electric property again.

The present invention solves the technical scheme that above-mentioned first technical problem adopts: this latch that is used on the power supply changeover device comprises conductive pin and conduction sleeve, described conductive pin and conduction sleeve constitute the integral piece of hollow form, it is characterized in that: described integral piece comprises the straight tube of bottom and the tri-prismoid on top, should be described conductive pin by straight tube, tangent plane has then formed described conduction sleeve in the described tri-prismoid, and goes back the stop collar that one is shaped on tubulose between described straight tube and tri-prismoid.

The present invention solves above-mentioned second technical scheme that technical problem adopted:

1. according to waiting to make the latch expansion shape, copper strips is struck out required blank;

2. above-mentioned blank one is rolled into the straight tube of bottom, the tubulose stop collar at middle part and the tri-prismoid on top.

Compared with prior art, because contact pin of the present invention adopts hollow structure, and itself and the conduction sleeve between another body process, thereby be electrically connected under the condition of intensity satisfying, both material was economized, cost is low, need not welding again, so that processing is got up convenient, can also guarantee simultaneously the reliability that is electrically connected effectively, thereby such improvement can obtain beyond thought technique effect, make the present invention more competitive fierce day by day today in market competition.

Description of drawings

Fig. 1 is the schematic perspective view of first embodiment of the invention;

Fig. 2 is for adopting the three-dimensional exploded view of the transducer of latch among Fig. 1;

Fig. 3 is the manufacture craft flow chart of the latch among Fig. 1;

Fig. 4 is the schematic perspective view of second embodiment of the invention;

Structural representation when Fig. 5 is installed on the converter shell for the latch among Fig. 4;

Fig. 6 be among Fig. 5 A-A to cutaway view;

Fig. 7 is the schematic perspective view of conductive pin of the prior art;

Fig. 8 is the schematic perspective view of conduction sleeve of the prior art;

The schematic perspective view of the latch that Fig. 9 is welded for the conductive pin among Fig. 7 and the conduction sleeve among Fig. 8.

Embodiment

Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.

Embodiment 1: as shown in Figure 1, this latch 1 is the thin down thick cylindrical shell of, and conductive pin 11 is formed on the bottom that this cylindrical shell is thinner, and conduction sleeve 12 has been formed at thicker top, has promptly formed the integral piece of hollow form.

Consider latch 1 in transducer the location or with being electrically connected of adjacent homopolarity latch,, the outside one of cylindrical shell oral area is bent with brace 13 here, and design has installing hole 14 on brace.Like this when above-mentioned latch 1 is inserted on the transducer drain pan 2, as shown in Figure 2, utilize installing hole 14 on screw and the above-mentioned cylindrical shell latch 1 to be fixed on the corresponding erection column 21 of drain pan.Simultaneously, also can utilize this installing hole to couple together, so that the attaching plug of a plurality of electrical appliances of on power supply changeover device, pegging graft simultaneously by the conducting strip 3 of lead or sheet metal and adjacent homopolarity latch.In addition, be connected more reliably in order to allow between the conduction sleeve 12 of plug and this power supply changeover device of electrical appliance, in the present embodiment, the upper diameter of conduction sleeve 12 is slightly less than its underpart diameter, and makes the more high resilience of two side of conduction sleeve 12.Like this, after the electrical appliance plug inserts conduction sleeve 12, can make the two make contact to one better.

The manufacture method of above-mentioned latch is referring to shown in 3: 1. according to the length of waiting to make latch, copper pipe is cut into required blank; 2. above-mentioned blank is placed the groove of shaping

bed die

5a, 5b impacts into the middle blank that the bottom is the reducing shape with above-mentioned blank with shaping patrix drift; 3. blank in the middle of above-mentioned is put into the step slotted eye of shaping bed die 6a, blank in the middle of described is pressed into required latch with step-like shaping patrix drift 6b; 4. described latch is put into the location notch of groove bed die 7a, the part side of the oral area both sides of above-mentioned latch is outwards stamped out brace 13 respectively with groove patrix drift 7b; The latch that 5. will have described brace places punching bed die 8a, with punching patrix drift 8b above-mentioned brace 13 is pressed into horizontally, and stamps out required installing hole 14 on described each brace 13; 6. the above-mentioned latch that has installing hole 14 is put into pattern 9a stopper slot, and make it be the reducing shape to the motion of sleeve 12 tops of above-mentioned latch simultaneously with upper punch 9b, low punch 9c.

Embodiment 2: as shown in Figure 4, this latch 1 ' be: by copper strips as required after the punching press with the above-mentioned first embodiment difference, one rolls into the straight tube of bottom, the tubulose stop collar 13 at middle part ' and top tri-prismoid again, so straight tube promptly become described conductive pin 11 ', in the tri-prismoid tangent plane then formed conduction sleeve 12 '.During installation, as shown in Figure 5 and Figure 6, when latch 1 ' be inserted on the drain pan 2 of transducer, stop collar 13 ' the be positioned at stopper slot 22 of drain pan, in loam cake 4, also be provided with simultaneously and conduct electricity the fore-set 41 that sleeve 12 ' end offsets, when loam cake 4 and drain pan 2 fixed together, above-mentioned fore-set 41 was tightly with latch 1 ' be positioned on the housing of power supply changeover device.

Claims

1, a kind of latch that is used on the power supply changeover device, it comprises conductive pin and conduction sleeve, described conductive pin and conduction sleeve constitute the integral piece of hollow form, it is characterized in that: described integral piece comprises the straight tube of bottom and the tri-prismoid on top, should be described conductive pin by straight tube, tangent plane has then formed described conduction sleeve in the described tri-prismoid, and goes back the stop collar that one is shaped on tubulose between described straight tube and tri-prismoid.

2, a kind of manufacture method of latch as claimed in claim 1 is characterized in that:

1. according to the expansion shape of waiting to make latch, copper strips is struck out required blank;

2. above-mentioned blank one is rolled into the straight tube of bottom, the tubulose stop collar and the top tri-prismoid at middle part.