CN102437546A - Safety switch capable of single wire tripping - Google Patents
Safety switch capable of single wire tripping Download PDFInfo
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- CN102437546A CN102437546A CN2011103435571A CN201110343557A CN102437546A CN 102437546 A CN102437546 A CN 102437546A CN 2011103435571 A CN2011103435571 A CN 2011103435571A CN 201110343557 A CN201110343557 A CN 201110343557A CN 102437546 A CN102437546 A CN 102437546A
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- loop
- jack
- controller
- relay
- fuse
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Abstract
The invention discloses a safety switch capable of single wire tripping. The safety switch comprises: a fuse which is used to connect an upper-flow power supply, at least one jack or loop, a controller, at least one galvanometer. The each jack or loop is correspondingly connected with one relay. The controller can control breakover or turn off of the relay. When a current flowing through the jack or loop is large and a current sum of the each jack or loop is larger than a maximum negotiable whole socket current set by the controller, the controller emits a signal which makes one relay trip from the other jacks or loops and do not act. For the switch, the each jack or loop is set with a respective maximum negotiable current respectively. When a lower-flow load exceeds a loadable state and is less than the tripping current of the fuse of the switch, the current of the jack or loop can be timely cut off so that a calamity can be avoided.
Description
Technical field
The present invention relates to a kind of switch, but particularly a kind of safety switch of single line escape.
Background technology
Traditional switch uses fuse to prevent the phenomenon of overcurrent, thinks that common people know.Shown in Figure 1 is the circuit structure diagram of a conventional switch; Comprise power supply 11, fuse 12, jack 13 and load 14; Wherein when the electric current summation of load 13 during greater than the Tripping Current of fuse 12, this fuse can escape, causes all and then escapes of all dirty loads.
All there are a shortcoming in fuse in this known technology or no-fuse switch; Promptly uprush and cause overcurrent and order about that fuse is jumped or no-fuse switch when taking off when the electric current that has any in the load of this switch drive; All dirty loads are escape simultaneously all; No matter whether the running of these loads is normal, so often cause the inconvenience in the use.The design of this type like the machine room of some electronics or telecommunication apparatus, is often counted station servers for some arbitrarily equipment generation puzzlements greatly of escape; Switch, or terminating machine etc. uses same switch, wherein the escape of arbitrary equipment all can cause not convenient in dirty user's use; If in factory; Can produce chain reaction again, make that more the equipment running of time one-level has some setbacks, thereby can cause greatest loss economically.
Also have when reality is used; Usually it is big all can the rated current capacity of switch (fuse or no-fuse switch) being got the rated current that can pass through than actual electric wire; In several loops that a switch is connected, often a load is crossed essential escape because of crossing electricity, but this electric current does not surpass the Tripping Current of this switch; So fuse does not have escape, the result will make that the load of this overcurrent is on fire and cause disaster event.
Summary of the invention
To the deficiency of above-mentioned prior art, but the purpose of this invention is to provide a kind of safety switch of more safe and reliable single line escape.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
But a kind of safety switch of single line escape, it comprises: a fuse is used to connect power supply; At least one jack or loop, said jack or loop are connected with said fuse with lead; Under the state in a plurality of jacks or loop, each jack or loop are parallelly connected with said fuse; At least one galvanometer is serially connected on the lead in pairing jack or loop, is used to measure the electric current that flows through this jack or loop; At least one relay, said relay are serially connected on the lead in pairing jack or loop; One controller, the control line of said galvanometer, relay is connected with said controller, and said controller can be controlled the conducting or the shutoff of said relay, and said controller can be set the Tripping Current value of maximum negotiable current value and each relay of whole socket; Excessive when the electric current that flows through a jack or loop, and make the electric current in this jack or loop and the maximum negotiable electric current of this socket of setting greater than this controller or during greater than corresponding relay set point, then this controller sends signal and makes this relay escape.When the electric current of all loops or jack sum total surpasses when once surveying the total current that power supply station can provide, the relay in all loops breaks off totally.
Preferably, said controller is provided with a manual reset switch, can make the relay conducting of escape after said manual reset switch resets.
Preferably, wherein the summation of the maximum negotiable electric current in all jacks or loop is less than the Tripping Current of this fuse, to guarantee safe running.
Preferably, said controller is a Programmable Logic Controller.
Preferably, said controller can an external computer installation, the total current that the maximum negotiable electric current that can set each jack or loop through the display screen and the input equipment of said computer installation and all loops add the General Logistics Department.
Technique scheme has following beneficial effect: but safety switch that should single line escape is in use, and automatic escape causes the load of overload when detecting overload, and the load that keeps other is still at the state of running.So do not have the situation that causes all equal escapes of load because of overload, therefore can be so that whole harmful effect reaches minimum.Simultaneously this safety switch for each jack or loop can set respectively allow separately to pass through maximum negotiable electric current; Can be so that load when a certain load electricity consumption surpasses itself; But total electricity consumption is during less than the Tripping Current of this switch-fuse; The electric current in this jack or loop can be in good time block, thereby the generation that can effectively prevent disasters.
Above-mentioned explanation only is the general introduction of technical scheme of the present invention, understands technological means of the present invention in order can more to know, and can implement according to the content of specification, below with preferred embodiment of the present invention and conjunction with figs. this patent is elaborated.
Description of drawings
Fig. 1 is the power line connection layout of existing socket.
Fig. 2 is the structural representation of the embodiment of the invention one.
Fig. 3 is the structural representation of the embodiment of the invention two.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described in detail.
As shown in Figure 2, but the safety switch of this single line escape comprises:
One fuse 10, fuse 10 is used to connect power supply 50, fuse 10 meeting escapes under over-current state, and make and then escape of load 40;
At least one jack or loop 20; Among the figure with the example in two jacks or loop as explanation, but this is not limited to the scope of the present invention's protection, this jack or feeder number can be one or more.This jack or loop 20 are used lead and are connected with this fuse 10.Under the state in many jacks or loop, each jack or loop are parallelly connected with this fuse 10 through lead in principle.
At least one galvanometer 22, galvanometer are serially connected on the lead in pairing jack or loop 20, and each jack or the loop 20 corresponding galvanometer 22 that connect are used to measure the electric current that flows through this jack or loop 20.
At least one relay 21, relay 21 is serially connected in the lead in pairing jack or loop 20, each jack or relay 21 of loop 20 corresponding connections;
One controller 30, controller 30 is used to control the running of whole switch, and controller 30 can be set the maximum negotiable electric current of whole socket 1, and the maximum negotiable electric current of this socket 1 should be less than the Tripping Current of the fuse 10 of this socket 1.The control line of galvanometer 22, relay 21 is connected with this controller 30, and the electric current that flows through this jack or loop 20 that galvanometer 22 will be measured is sent to this controller 30.Controller 30 can be controlled the conducting or the shutoff of this relay 21.When the electric current that flows through a jack or loop 20 excessive; And make the electric current in each jack or loop 20 and during the maximum negotiable electric current of the whole socket that sets greater than this controller 30; Then this controller 30 sends signal and makes this relay 21 escapes; And make and to flow through the Tripping Current of the electric current of this socket 1 less than fuse 10, can under the loss of minimum, keep the safe handling of whole system like this.Also be provided with a manual reset switch on the controller 30, can make the relay conducting of escape after manual reset switch resets.
Action of the present invention is as shown in Figure 2; Be inserted with under the situation of load 40 at two jacks or loop 20; When the load current in second jack or loop 20 becomes big suddenly, and when making the maximum negotiable electric current of whole socket that the electric current sum total of two loads 40 sets greater than this controller 30, this controller 30 will send an escape signal to the relay 21 in this second jack or loop 20; To make this relay 21 escapes; And the load 40 in this first jack or loop 20 can't escape, under the loss of minimum, just can keep the safe handling of whole system like this.
As shown in Figure 3; Be the second embodiment of the present invention; The difference of itself and last embodiment is that this controller 30 is Programmable Logic Controller; Promptly can this controller be external to a computer installation 60, see through the display screen 80 of computer installation 60 and the maximum negotiable electric current that input equipment 70 is set each jack or loop 20, so the maximum negotiable electric current that can set each jack or loop 20 according to the situation of current load 40 down is to adapt to actual situation.
This controller 30 can be set the Tripping Current value of each relay 21; Like this when the current value that flows through this relay 21 surpasses the Tripping Current value that this jack or loop 20 are set; Relay 21 also can escape, makes this jack or loop 20 pairing loads be failure to actuate.Essential explanation, the summation of the maximum negotiable electric current in all jacks of preferably or loop 20 is less than the Tripping Current of this fuse 10, to guarantee safe running.
Advantage of the present invention is for causing the load of overload when detecting when overload automatic escape, and keeps the state that other load is still operating.So the situation of all equal escapes of load can not appear causing because of overload, and therefore can be so that whole harmful effect reaches minimum.Moreover; Can set maximum negotiable electric current separately respectively to the corresponding relay of each jack or loop; Can be so that when surpassing load itself so that work as a certain load electricity consumption; But total electricity consumption is during less than the Tripping Current of this switch-fuse, and what the electric current in this jack or loop can be in good time blocks, thereby the generation that can effectively prevent disasters.The effect that double protection is provided of the present invention, promptly controller provides the ground floor insurance, and fuse provides second layer insurance.
More than but the safety switch of a kind of single line escape that the embodiment of the invention provided has been carried out detailed introduction; For one of ordinary skill in the art; According to the thought of the embodiment of the invention, the part that on embodiment and range of application, all can change, in sum; This description should not be construed as limitation of the present invention, and all any changes of making according to design philosophy of the present invention are all within protection scope of the present invention.
Claims (4)
1. but the safety switch of a single line escape is characterized in that, it comprises:
One fuse is used to connect power supply;
At least one jack or loop, said jack or loop are connected with said fuse with lead; Under the state in a plurality of jacks or loop, each jack or loop are parallelly connected with said fuse;
At least one galvanometer is serially connected on the lead in pairing jack or loop, is used to measure the electric current that flows through this jack or loop;
At least one relay, said relay are serially connected on the lead in pairing jack or loop;
One controller, the control line of said galvanometer, relay is connected with said controller, and said controller can be controlled the conducting or the shutoff of said relay, and said controller can be set the Tripping Current value of the maximum negotiable current value and the relay of whole socket;
When the electric current that flows through a jack or loop excessive; And make the electric current in each jack or loop and the maximum negotiable electric current of the whole socket that sets greater than this controller or during greater than corresponding relay set point, then this controller sends signal and makes this relay escape.
2. but the safety switch of single line escape according to claim 1 is characterized in that: said controller is provided with a manual reset switch, can make the relay conducting of escape after said manual reset switch resets.
3. but the safety switch of single line escape according to claim 1 and 2 is characterized in that: said controller is a Programmable Logic Controller.
4. but the safety switch of single line escape according to claim 3 is characterized in that: the external computer installation of said controller, the maximum negotiable electric current that can set each jack or loop through the display screen and the input equipment of said computer installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103435571A CN102437546A (en) | 2011-11-03 | 2011-11-03 | Safety switch capable of single wire tripping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103435571A CN102437546A (en) | 2011-11-03 | 2011-11-03 | Safety switch capable of single wire tripping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102437546A true CN102437546A (en) | 2012-05-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103435571A Pending CN102437546A (en) | 2011-11-03 | 2011-11-03 | Safety switch capable of single wire tripping |
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| Country | Link |
|---|---|
| CN (1) | CN102437546A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109507933A (en) * | 2018-12-19 | 2019-03-22 | 张绍轩 | The intelligent socket and its control method of equipment access identification and overcurrent protection |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040070894A1 (en) * | 2002-09-30 | 2004-04-15 | Beasley Max Hartwell | Device and method for providing electric service |
| CN2627705Y (en) * | 2003-05-16 | 2004-07-21 | 川部股份有限公司 | Digital display overcurrent protective device |
| CN201348818Y (en) * | 2009-01-19 | 2009-11-18 | 李佩岐 | Remote control power receptacle controllable device |
| CN201417858Y (en) * | 2009-05-31 | 2010-03-03 | 银河通讯技术有限公司 | Intelligent electrical socket outlet |
| CN201466376U (en) * | 2009-06-15 | 2010-05-12 | 秦皇岛富通尼特智能科技有限公司 | Specific energy saving socket for combined mating electrical appliance |
| US20110170223A1 (en) * | 2010-01-14 | 2011-07-14 | International Business Machines Corporation | Power distribution unit branch protection |
| CN202474801U (en) * | 2011-11-03 | 2012-10-03 | 苏州仲暄通讯技术有限公司 | Single-line trip safe switch |
-
2011
- 2011-11-03 CN CN2011103435571A patent/CN102437546A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040070894A1 (en) * | 2002-09-30 | 2004-04-15 | Beasley Max Hartwell | Device and method for providing electric service |
| CN2627705Y (en) * | 2003-05-16 | 2004-07-21 | 川部股份有限公司 | Digital display overcurrent protective device |
| CN201348818Y (en) * | 2009-01-19 | 2009-11-18 | 李佩岐 | Remote control power receptacle controllable device |
| CN201417858Y (en) * | 2009-05-31 | 2010-03-03 | 银河通讯技术有限公司 | Intelligent electrical socket outlet |
| CN201466376U (en) * | 2009-06-15 | 2010-05-12 | 秦皇岛富通尼特智能科技有限公司 | Specific energy saving socket for combined mating electrical appliance |
| US20110170223A1 (en) * | 2010-01-14 | 2011-07-14 | International Business Machines Corporation | Power distribution unit branch protection |
| CN202474801U (en) * | 2011-11-03 | 2012-10-03 | 苏州仲暄通讯技术有限公司 | Single-line trip safe switch |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109507933A (en) * | 2018-12-19 | 2019-03-22 | 张绍轩 | The intelligent socket and its control method of equipment access identification and overcurrent protection |
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Application publication date: 20120502 |