CN102496505A - Arc preventive switch and direct-current power supply equipment with same - Google Patents
Arc preventive switch and direct-current power supply equipment with same Download PDFInfo
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- CN102496505A CN102496505A CN201110359904XA CN201110359904A CN102496505A CN 102496505 A CN102496505 A CN 102496505A CN 201110359904X A CN201110359904X A CN 201110359904XA CN 201110359904 A CN201110359904 A CN 201110359904A CN 102496505 A CN102496505 A CN 102496505A
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Abstract
The invention provides an arc preventive switch, which comprises a shell, an anode connector, a cathode connector, a switch connector, a delay circuit, a first end and a second end, wherein the anode connector and the cathode connector are arranged on one end face of the shell, the switch connector is connected with one of the anode connector and the cathode connector when the switch connector is pressed, the length of the anode connector and the cathode connector projecting over the end face is larger than that of the switch connector projecting over the end face, the delay circuit is connected between the anode connector and the cathode connector, the first end is connected with the switch connector, the second end is connected with the other of the anode connector and the cathode connector, and the first end and the second end are connected with a direct-current power source. The arc preventive switch in an embodiment is simple in structure, low in cost and easy in realization.
Description
Technical field
The present invention relates to electric equipment manufacturing technology field, particularly a kind of arc protection switch and have its dc suppling equipment more particularly, relates to a kind of point contact type machinery arc protection switch.
Background technology
When direct current supply interface warm swap, be easy to produce the electric arc problem.Electric arc is a kind of gas discharge phenomenon, the moment spark that electric current is produced through some dielectric (for example air), and its electrical equipment to other use direct current supplys such as various servers, computer can cause very and seriously influence.Because electric arc (or claiming electric spark) can produce huge ability, if do not take safeguard measure will cause serious destruction to the electrical equipment of switching system and connection, also possibly produce serious consequence to the zone around the switch, even the people is produced harm.
A kind of Arc-resistant switchgear enclosure is disclosed like Chinese patent 03806653.x.As shown in Figure 1, be the structural representation of existing Arc-resistant switchgear enclosure.This Arc-resistant switchgear enclosure comprise have a plurality of conductive plate parts 19 around housing, and make zone around the box avoid being in the protective layer 20 under the danger of the electric arc 6 that produces in the box.At least one stroke in this plate member 19 is towards the shielding part in the outside zone to be protected of box.This protective layer 20 has insulation characterisitic and only is applied to this at least one plate member 19.
The shortcoming of prior art is, present arc protection relates to and all is based on the principle of releasing, thereby causes its complex structure, cost very high.
Summary of the invention
The present invention is intended to solve at least one of technical problem that exists in the prior art, and it is complicated particularly to solve present arc protection construction of switch, defect of high cost.
Embodiment of the invention first aspect has proposed a kind of arc protection switch, comprising: housing; Be arranged on positive and negative connector and switch contacts on the end face of said housing; Wherein, Said switch contacts when being pressed with said positive and negative connector in one link to each other, and the length of the outstanding said end face of said positive and negative connector is greater than the length of the outstanding said end face of said switch contacts; Delay circuit, said delay circuit are connected between the said positive and negative connector; And first end and second end, said first end links to each other with said switch contacts, and another in said second end and the said positive and negative connector links to each other, and said first end links to each other with DC power supply with said second end.
Embodiment of the invention second aspect has also proposed a kind of dc suppling equipment, comprising: aforesaid arc protection switch; DC power supply, said first end of said DC power supply and said arc protection switch and said second end with link to each other.
The embodiment of the invention can utilize the reasonable time of generation in operation poor; Thereby obtain the energising (during insertion) again of contact earlier; Outage earlier disengages the effect of (when extracting) again, and releases according to the delay circuit of the embodiment of the invention, can avoid producing the electric discharge phenomena of electric arc.Therefore, the arc protection construction of switch in the embodiment of the invention is simple, cost is low, be easy to realization.
Additional aspect of the present invention and advantage part in the following description provide, and part will become obviously from the following description, or recognize through practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage obviously with are easily understood becoming the description of embodiment from combining figs, wherein:
Fig. 1 is the structural representation of existing Arc-resistant switchgear enclosure; And
Fig. 2 is the structure chart of embodiment of the invention dc suppling equipment.
Embodiment
Describe embodiments of the invention below in detail, the example of said embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Be exemplary through the embodiment that is described with reference to the drawings below, only be used to explain the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention; Term " vertically ", " laterally ", " on ", the orientation of indications such as D score, " preceding ", " back ", " left side ", " right side ", " vertically ", " level ", " top ", " end " or position relation be for based on orientation shown in the drawings or position relation; Only be for the ease of describing the present invention rather than requiring the present invention therefore can not be interpreted as limitation of the present invention with specific azimuth configuration and operation.
With reference to following description and accompanying drawing, with these and other aspects of knowing embodiments of the invention.These describe with accompanying drawing in, some specific implementations in the embodiments of the invention are specifically disclosed, represent some modes of principle of the embodiment of embodiment of the present invention, still should be appreciated that the scope of embodiments of the invention is not limited.On the contrary, embodiments of the invention comprise and fall into appended spirit that adds the right claim and all changes, modification and the equivalent in the intension scope.
As shown in Figure 2, be the structure chart of embodiment of the invention dc suppling equipment.This dc suppling equipment comprises arc protection switch 100 and DC power supply 200.Wherein, arc protection switch 100 comprises housing 110, positive and negative connector 120, switch contacts 130, delay circuit 140, first end 150 and second end 160.In this embodiment, positive and negative connector 120 is arranged on the end face of housing 100 with switch contacts 130.As shown in Figure 2; Positive and negative connector 120 and switch contacts 130 are arranged on housing 100 and contacted of the electronic equipment; Make to contact with positive and negative connector 120 and switch contacts 130 when electronic equipment inserts, thereby dc suppling equipment can be power electronic equipment.Particularly, switch contacts 130 when being pressed with positive and negative connector 120 in one and first end 150 link to each other, as shown in the figure, switch contacts 130 links to each other with positive terminal when being pressed.Certainly in an embodiment of the present invention, the position of positive electrode and negative electrode can exchange, and only needs the corresponding adjustment of the both positive and negative polarity of DC power supply 200 is got final product.In this embodiment, the length of positive and negative connector 120 outstanding end faces is greater than the length of switch contacts 130 outstanding these end faces, and switch contacts 130 can move along the direction perpendicular to end face.Preferably, this switch contacts 130 is a mechanical. points touch switch contacts, when being pressed, can link to each other with (is positive terminal like Fig. 2) and first end 150 in the positive and negative connector 120.
Wherein, Delay circuit 140 is connected between the positive and negative connector 120; And first end 150 links to each other with switch contacts 130, and another (is anode connector like Fig. 2) in second end 160 and the positive and negative connector 120 links to each other, and first end 150 links to each other with DC power supply 200 with second end 160.When switch contacts 130 is connected, just can be the electronic equipment charging through positive and negative connector 120.
The embodiment of the invention can utilize the reasonable time of generation in operation poor; Thereby obtain the energising (during insertion) again of contact earlier; Outage earlier disengages the effect of (when extracting) again, can rationally solve the problem that electric arc produces with the simple and practical some tool construction of switch of having a sudden inspiration.Particularly; In this embodiment; When electronic equipment is connected with dc suppling equipment, because the length that the length of positive and negative connector 120 outstanding end faces is given prominence to these end faces greater than switch contacts 130, so electronic equipment can contact with positive and negative connector 120 earlier when inserting.At this moment, the user need not to carry out operation painstakingly when inserting the plug of electronic equipment, therefore can user's use not had any impact.Then the user continues to insert the plug of electronic equipment, and then plug can further contact with switch contacts 130, and exerts pressure to switch contacts 130.Switch contacts 130 links to each other with first end 150 with positive terminal respectively, thereby positive and negative connector 120 is linked to each other with DC power supply 200 after being pressed.At this moment, because the time-delay that delay circuit 140 produces, the electric charge between the positive and negative connector 120 can be released through delay circuit 140 before switch contacts 130 is connected, thereby had stopped the electric arc that electric discharge phenomena produce.
Likewise, in this embodiment, when being pulled out for plug, switch contacts 130 at first disengages with the plug of electronic equipment, makes switch contacts reset fast, thereby makes switch contacts 130 and the positive terminal 120 and first end 150 break off.During this period, electronic equipment still contacts with positive and negative connector 120, and therefore this moment, positive and negative connector 120 constituted discharge loops jointly with delay circuit 140, thus the electric charge of the accumulation of releasing fast.
In sum, the embodiment of the invention has been stopped to produce the phenomenon of discharge arcing because of the electric charge accumulation.
In one embodiment of the invention, delay circuit 140 comprises the resistance R 141 and capacitor C 142 of mutual series connection.In other embodiments of the invention, also can select other delay circuits.But the resistance R that the embodiment of the invention is connected each other 141 is comparatively simple with capacitor C 142 structures, can realize the object of the invention.Preferably, resistance R 141 constitutes the time-delay of ms levels with capacitor C 142, thereby the user can not feel any time-delay in use basically.
In one embodiment of the invention, arc protection switch 100 also comprises reset assembly, for example spring etc.Reset assembly be used for to switch contacts 130 apply restoring force so that switch contacts 130 when not being pressed and one (being positive terminal among Fig. 1) and first end 150 of positive and negative connector 120 break off.
In one embodiment of the invention, switch contacts 130, is further pushed by electronic equipment so that in switch contacts 130 and the positive and negative connector 120 one and first end 150 link to each other with after electronic equipment is electrically connected at positive and negative connector 120.When electronic equipment is pulled out; Electronic equipment disengages with switch contacts 130 earlier so that one and first end 150 disconnections of switch contacts 130 under the effect of reset assembly restoring force so that in switch contacts 130 and the positive and negative connector 120; After in switch contacts 130 and positive and negative connector 120 one and first end 150 broke off, positive and negative connector 120 constituted the electric charge of discharge loops with positive and negative connector 120 accumulation of releasing with delay circuit 140.
The embodiment of the invention can utilize the reasonable time of generation in operation poor; Thereby obtain the energising (during insertion) again of contact earlier; Outage earlier disengages the effect of (when extracting) again, and releases according to the delay circuit of the embodiment of the invention, can avoid producing the electric discharge phenomena of electric arc.Therefore, the arc protection construction of switch in the embodiment of the invention is simple, cost is low, be easy to realization.
In the description of this specification, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means the concrete characteristic, structure, material or the characteristics that combine this embodiment or example to describe and is contained at least one embodiment of the present invention or the example.In this manual, the schematic statement to above-mentioned term not necessarily refers to identical embodiment or example.And concrete characteristic, structure, material or the characteristics of description can combine with suitable manner in any one or more embodiment or example.
Although illustrated and described embodiments of the invention; Those having ordinary skill in the art will appreciate that: under the situation that does not break away from principle of the present invention and aim, can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is limited claim and equivalent thereof.
Claims (7)
1. an arc protection switch is characterized in that, comprising:
Housing;
Be arranged on positive and negative connector and switch contacts on the end face of said housing; Wherein, Said switch contacts when being pressed with said positive and negative connector in one link to each other, and the length of the outstanding said end face of said positive and negative connector is greater than the length of the outstanding said end face of said switch contacts;
Delay circuit, said delay circuit are connected between the said positive and negative connector; And
First end and second end, said first end links to each other with said switch contacts, and another in said second end and the said positive and negative connector links to each other, and said first end links to each other with DC power supply with said second end.
2. arc protection switch as claimed in claim 1 is characterized in that, said delay circuit comprises the resistance and the electric capacity of mutual series connection.
3. arc protection switch as claimed in claim 2 is characterized in that, said resistance and electric capacity constitute the time-delay of ms level.
4. arc protection switch as claimed in claim 1 is characterized in that, also comprises:
Reset assembly, be used for to said switch contacts apply restoring force so that said switch contacts when not being pressed and one of said positive and negative connector and said first end break off.
5. arc protection switch as claimed in claim 4; It is characterized in that; Said switch contacts, is further pushed by said electronic equipment so that in said switch contacts and the said positive and negative connector one and said first end link to each other with after electronic equipment is electrically connected at said positive and negative connector.
6. arc protection switch as claimed in claim 5; It is characterized in that; When said electronic equipment is pulled out; Said electronic equipment disengages with said switch contacts earlier so that one and the said first end disconnection of said switch contacts under the effect of said reset assembly restoring force so that in said switch contacts and the said positive and negative connector; After in said switch contacts and said positive and negative connector one and said first end broke off, said positive and negative connector constituted the electric charge that discharge loop accumulates with the said positive and negative connector of releasing with said delay circuit.
7. a dc suppling equipment is characterized in that, comprising:
Like each described arc protection switch of claim 1-6; And
DC power supply, said first end of said DC power supply and said arc protection switch and said second end with link to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110359904.XA CN102496505B (en) | 2011-11-14 | 2011-11-14 | Arc preventive switch and direct-current power supply equipment with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110359904.XA CN102496505B (en) | 2011-11-14 | 2011-11-14 | Arc preventive switch and direct-current power supply equipment with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102496505A true CN102496505A (en) | 2012-06-13 |
| CN102496505B CN102496505B (en) | 2014-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110359904.XA Active CN102496505B (en) | 2011-11-14 | 2011-11-14 | Arc preventive switch and direct-current power supply equipment with same |
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| Country | Link |
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| CN (1) | CN102496505B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150027863A1 (en) * | 2013-07-26 | 2015-01-29 | Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd | Electric arc eliminating apparatus |
| US9666977B2 (en) | 2015-07-29 | 2017-05-30 | Abb Schweiz Ag | Direct current socket with direct current arc protection |
| US10483693B2 (en) | 2015-09-24 | 2019-11-19 | Abb Schweiz Ag | Sliding contact assembly for accelerating relative separation speed between plug contacts and socket outlet contacts |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110028012A1 (en) * | 2009-07-31 | 2011-02-03 | American Power Conversion Corporation | Sparkless electrical connector |
-
2011
- 2011-11-14 CN CN201110359904.XA patent/CN102496505B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110028012A1 (en) * | 2009-07-31 | 2011-02-03 | American Power Conversion Corporation | Sparkless electrical connector |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150027863A1 (en) * | 2013-07-26 | 2015-01-29 | Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd | Electric arc eliminating apparatus |
| US9666977B2 (en) | 2015-07-29 | 2017-05-30 | Abb Schweiz Ag | Direct current socket with direct current arc protection |
| US10483693B2 (en) | 2015-09-24 | 2019-11-19 | Abb Schweiz Ag | Sliding contact assembly for accelerating relative separation speed between plug contacts and socket outlet contacts |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102496505B (en) | 2014-06-25 |
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