CN204012641U - A kind of intelligent bus sky is opened - Google Patents
A kind of intelligent bus sky is opened Download PDFInfo
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- CN204012641U CN204012641U CN201420321023.8U CN201420321023U CN204012641U CN 204012641 U CN204012641 U CN 204012641U CN 201420321023 U CN201420321023 U CN 201420321023U CN 204012641 U CN204012641 U CN 204012641U
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- 230000008859 change Effects 0.000 claims abstract description 7
- 239000004020 conductor Substances 0.000 claims description 28
- 239000003990 capacitor Substances 0.000 claims description 15
- 239000003381 stabilizer Substances 0.000 claims description 15
- 238000001914 filtration Methods 0.000 claims description 6
- 230000002452 interceptive effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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Abstract
The utility model relates to a kind of power switch, is specifically related to a kind of intelligent bus sky and opens.A kind of intelligent bus sky is opened, comprise bus interface and empty opening apparatus, described empty opening apparatus comprises DC converting circuit, current sampling circuit, single chip machine controlling circuit, control relay circuit and relay, described DC converting circuit connects VCC power supply by bus interface, described DC converting circuit output DC power supply is single chip machine controlling circuit power supply, described single chip machine controlling circuit is put road by current sampling and is obtained current information, and export after treatment control signal to control relay circuit, described control relay circuit control relay upset and realize the change of on off state.The utility model is simple and reasonable, applied widely.
Description
Technical field
The utility model relates to a kind of power switch, is specifically related to a kind of intelligent bus sky and opens.
Background technology
Air switch (English name: Air switch), has another name called air circuit, is the one of circuit breaker.A kind of as long as electric current exceedes the switch that rated current will disconnect automatically in circuit.Air switch is very important a kind of electrical equipment in low voltage power distribution network and electric drive system, and it integrates controls and multi-protective function.Decapacitation completes outside contact and point deenergizing, and the short circuit that still can occur circuit or electric equipment, seriously overload and under voltage etc. are protected, and the while also can be for actuating motor continually not.
Existing air switch has following two kinds of modes to realize power-off protection,
1: hot protection, utilize thermal overload release, for the thermal overload release of overcurrent protection class, generally more complicated all of its transmission mechanism, often need by secondary even three grades of transmissions just realize dropout.And need manually to complete recovery operation after de-mouthful;
2: short-circuit protection formula, Inside coil drive link action cut-off switch when electric current is excessive.Be specially the switching contact site that makes the structure that the movable contact element of cutter type rotates and connect, cuts off with respect to fixed set electronics; For elongating arc length while opening circuit the arc-extinction device of current limliting; By the making operation electromagnet of link mechanism driven opening/closing contact site; And the disconnecting apparatus moving according to cut-out instruction.This mode structure is also comparatively complicated.
Utility model content
In order to solve the problems of the technologies described above, the utility model proposes a kind of intelligent bus sky opens, described air switch adopts current transformer to gather current value, and this current value is sent to single-chip microcomputer, single-chip microcomputer sends and goes code or cut off instruction to opening and closing device, described opening and closing device basis goes code or cuts off the energising direction of the electric current of instruction control coil, and then realizes turning on and off of this switch.And this opening and closing device adopts simple magnetic to protect coil and the armature with moving contact and fixed contact composition, by magnetic being protected to the electric current of coil input different directions, and then the armature with moving contact is connected under the effect of electromagnetic force to different fixed contacts, and then realize turning on and off of switch, do not need complicated mechanical structure, simple and convenient.
In order to achieve the above object, the technical scheme that the utility model adopts is, a kind of intelligent bus sky is opened, comprise bus interface and empty opening apparatus, described empty opening apparatus comprises DC converting circuit, current sampling circuit, single chip machine controlling circuit, control relay circuit and relay, described DC converting circuit connects VCC power supply by bus interface, described DC converting circuit output DC power supply is single chip machine controlling circuit power supply, described single chip machine controlling circuit is put road by current sampling and is obtained current information, and export after treatment control signal to control relay circuit, described control relay circuit control relay upset and realize the change of on off state.
Further, described DC converting circuit comprises that model is three terminal integrated voltage stabilizer U1, filter capacitor E1 and the E2 of 78L05, diode D1, the input of described three terminal integrated voltage stabilizer U1 is connected to VCC power supply through diode D1, bus interface, the earth terminal of described three terminal integrated voltage stabilizer U1 is through bus interface ground connection, described filter capacitor E1 and E2 are connected in parallel on respectively the power input of three terminal integrated voltage stabilizer U1 and output for filtering interfering, and described three terminal integrated voltage stabilizer U1 output output 5V DC power supply is single chip machine controlling circuit power supply.
Further, described single chip machine controlling circuit comprises that model is PIC12F69 single-chip microcomputer U2, described current sampling circuit comprises current sensor DL1, resistance R 4, diode D3, resistance R 3 and capacitor C 2, current sensor DL1 parallel resistance R4 sampling, sampling current is after diode D3 rectification, after capacitor C 2 filtering, resistance R 3 is after capacitor C 2 electric discharges, to receive the GP1 end of single-chip microcomputer U2, and described single chip machine controlling circuit is put road by current sampling and obtained current information.
Further, described control relay circuit comprises that model is the magnetic latching relay driving chip U3 of BL8023, described magnetic latching relay drives the VCC end of chip U3 to be connected with 5V DC power supply, and described magnetic latching relay drives the OUTA end of chip U3 to be connected with the coil two ends of relay respectively with OUTB end.
Further, described relay is magnetic latching relay, and this relay comprises magnetic conductor, permanent magnet, with the armature of moving contact, the first fixed contact and the second fixed contact, described magnetic conductor is U-shaped magnetic conductor, described permanent magnet is fixedly installed on U-shaped magnetic conductor U word bottom, there is coil described magnetic conductor both sides respectively diffraction, described coil two ends drive the OUTA end of chip U3 and OUTB end to be connected with magnetic latching relay respectively, be connected with the armature with moving contact with permanent magnet top, and described U-shaped magnetic conductor U word opening is stretched out in this armature one end with moving contact, described U-shaped magnetic conductor U word opening part one side is provided with the first fixed contact, opposite side is provided with the second fixed contact, the described armature with moving contact is according to the difference of the sense of current of the coil on magnetic conductor, realize the connection with the first fixed contact or the second fixed contact.
The utility model is by adopting technique scheme, and compared with prior art, tool has the following advantages:
The utility model improves the improvement that is circuit, in traditional air switch circuit, add bus interface, and empty opening apparatus comprises single chip machine controlling circuit, realize the Long-distance Control of described air switch, relay in described empty opening apparatus has also adopted the simply armature with moving contact and magnetic conductor, the connection of permanent magnet, and export control signal to control relay circuit by single chip machine controlling circuit, the change of the direction of coil current on control relay circuit control magnetic conductor, and then the direction of change magnetic force, the armature of realization with moving contact and the first fixed contact and the second fixed contact between switching, and then realize turning on and off of whole air switch.Simple and reasonable, applied widely.
Brief description of the drawings
Fig. 1 is the circuit theory diagrams of embodiment of the present utility model;
Fig. 2 is the structural representation of the utility model magnetic latching relay.
Embodiment
Now with embodiment, the utility model is further illustrated by reference to the accompanying drawings.
As a specific embodiment, as shown in Figure 1, a kind of intelligent bus sky is opened, comprise bus interface and empty opening apparatus, described empty opening apparatus comprises DC converting circuit, current sampling circuit, single chip machine controlling circuit, control relay circuit and relay, described DC converting circuit connects VCC power supply by bus interface, described DC converting circuit output DC power supply is single chip machine controlling circuit power supply, described single chip machine controlling circuit is put road by current sampling and is obtained current information, and export after treatment control signal to control relay circuit, described control relay circuit control relay upset and realize the change of on off state.
In the present embodiment, described DC converting circuit comprises that model is three terminal integrated voltage stabilizer U1, filter capacitor E1 and the E2 of 78L05, diode D1, the input of described three terminal integrated voltage stabilizer U1 is connected to VCC power supply through diode D1, bus interface, the earth terminal of described three terminal integrated voltage stabilizer U1 is through bus interface ground connection, described filter capacitor E1 and E2 are connected in parallel on respectively the power input of three terminal integrated voltage stabilizer U1 and output for filtering interfering, and described three terminal integrated voltage stabilizer U1 output output 5V DC power supply is single chip machine controlling circuit power supply.Described single chip machine controlling circuit comprises that model is PIC12F69 single-chip microcomputer U2, described current sampling circuit comprises current sensor DL1, resistance R 4, diode D3, resistance R 3 and capacitor C 2, current sensor DL1 parallel resistance R4 sampling, sampling current is after diode D3 rectification, after capacitor C 2 filtering, resistance R 3 is after capacitor C 2 electric discharges, to receive the GP1 end of single-chip microcomputer U2, and described single chip machine controlling circuit is put road by current sampling and obtained current information.Described control relay circuit comprises that model is the magnetic latching relay driving chip U3 of BL8023, described magnetic latching relay drives the VCC end of chip U3 to be connected with 5V DC power supply, and described magnetic latching relay drives the OUTA end of chip U3 to be connected with the coil two ends of relay respectively with OUTB end.
Shown in figure 2, described relay is magnetic latching relay, and this relay comprises magnetic conductor, permanent magnet, with the armature of moving contact, the first fixed contact and the second fixed contact, described magnetic conductor is U-shaped magnetic conductor, described permanent magnet is fixedly installed on U-shaped magnetic conductor U word bottom, there is coil described magnetic conductor both sides respectively diffraction, described coil two ends drive the OUTA end of chip U3 and OUTB end to be connected with magnetic latching relay respectively, be connected with the armature with moving contact with permanent magnet top, and described U-shaped magnetic conductor U word opening is stretched out in this armature one end with moving contact, described U-shaped magnetic conductor U word opening part one side is provided with the first fixed contact, opposite side is provided with the second fixed contact, the described armature with moving contact is according to the difference of the sense of current of the coil on magnetic conductor, realize the connection with the first fixed contact or the second fixed contact.
For example, when single chip machine controlling circuit receives the current signal of current sampling circuit, by internal comparator, electric current is compared, when electric current exceedes after comparator set point, judge that this electric current is overcurrent, need to start overcurrent protection, need to turn-off air switch, now, single-chip microcomputer U2 drives the INA pin of chip U3 to magnetic latching relay by GP0 pin output control signal (changing the current sense of current), described magnetic latching relay drives chip U3 by changing the sense of current to magnetic latching relay, make the armature with moving contact change the connection to the first fixed contact or the second fixed contact, for example, to connect the first fixed contact before, so now just connect the second fixed contact, and then realize whole air switch and realize relaying protection by being switched to shutoff.Now, if traditional relay, conventionally need artificial mode to return to on-state, and this programme is owing to having adopted above-mentioned relay construction, can not need to recover by artificial or mechanical mode the connection of air switch, directly send order to single-chip microcomputer by bus interface, can realize the connection of air switch, in order to achieve the above object, shown in figure 1 and Fig. 2, magnetic conductor left side electric current is forward current I+, magnetic conductor right side electric current is negative current I-, now, armature with moving contact is communicated with the first fixed contact (being shown as the fixed contact in left side in Fig. 2), now air switch is in off state, when realizing the connection of this air switch, only need to provide control signal to single chip machine controlling circuit in bus interface, the GP5 pin of single-chip microcomputer U2 in described single chip machine controlling circuit is connected to the data/address bus of bus interface through resistance R 1, data/address bus also connects resistance to earth R6, control signal (connecting air switch signal) from bus sends to single-chip microcomputer, single-chip microcomputer receives this control signal and control relay circuit is sent to control command, and then the upset of control relay and realize the connection of air switch.This programme has been realized the air switch control of full intelligence completely, without manually powering on, real realization is intelligent, and in the present invention, relation between single chip machine controlling circuit and other circuit is the input and output relation of signal, and the operation of single-chip microcomputer internal processes is those skilled in the art's common practise, it is to realize in the practice process of this programme, can carry out writing of program according to those skilled in the art's actual demand, it is not the technical scheme that the present invention needs protection, described program neither this programme inventive point, this programme discloses the concrete annexation between each hardware building block and the each parts that form intelligent air switch, the electric connection that this annexation comprises is connected (for example connection of Single-chip Controlling signal) with signal.
In order to realize the expansion of this utilization, this programme also supplements, and shown in figure 1, also comprises warning circuit, is made up of LED1 and resistance R 5, and the alarm signal of the GP2 end output of single-chip microcomputer U2 is sent light through resistance R 5 rear drive LED1 lamps and reported to the police.
The GP3 of single-chip microcomputer U2 is by R2 ground connection, and this end is control input end, by resistance R 7, resistance R 2 and diode D4 and touch-switch ON/OFF composition switch triggering circuit.
Although specifically show and introduced the utility model in conjunction with preferred embodiment; but those skilled in the art should be understood that; not departing from the spirit and scope of the present utility model that appended claims limits; can make a variety of changes the utility model in the form and details, be protection range of the present utility model.
Claims (5)
1. an intelligent bus sky is opened, it is characterized in that: comprise bus interface and empty opening apparatus, described empty opening apparatus comprises DC converting circuit, current sampling circuit, single chip machine controlling circuit, control relay circuit and relay, described DC converting circuit connects VCC power supply by bus interface, described DC converting circuit output DC power supply is single chip machine controlling circuit power supply, described single chip machine controlling circuit is put road by current sampling and is obtained current information, and export after treatment control signal to control relay circuit, described control relay circuit control relay upset and realize the change of on off state.
2. the intelligent bus sky of one according to claim 1 is opened, it is characterized in that: described DC converting circuit comprises that model is the three terminal integrated voltage stabilizer U1 of 78L05, filter capacitor E1 and E2, diode D1, the input of described three terminal integrated voltage stabilizer U1 is through diode D1, bus interface is connected to VCC power supply, the earth terminal of described three terminal integrated voltage stabilizer U1 is through bus interface ground connection, described filter capacitor E1 and E2 are connected in parallel on respectively the power input of three terminal integrated voltage stabilizer U1 and output for filtering interfering, described three terminal integrated voltage stabilizer U1 output output 5V DC power supply is single chip machine controlling circuit power supply.
3. the intelligent bus sky of one according to claim 1 is opened, it is characterized in that: described single chip machine controlling circuit comprises that model is PIC12F69 single-chip microcomputer U2, described current sampling circuit comprises current sensor DL1, resistance R 4, diode D3, resistance R 3 and capacitor C 2, current sensor DL1 parallel resistance R4 sampling, sampling current is after diode D3 rectification, after capacitor C 2 filtering, resistance R 3 is after capacitor C 2 electric discharges, to receive the GP1 end of single-chip microcomputer U2, and described single chip machine controlling circuit is put road by current sampling and obtained current information.
4. the intelligent bus sky of one according to claim 1 is opened, it is characterized in that: described control relay circuit comprises that model is the magnetic latching relay driving chip U3 of BL8023, described magnetic latching relay drives the VCC end of chip U3 to be connected with 5V DC power supply, and described magnetic latching relay drives the OUTA end of chip U3 to be connected with the coil two ends of relay respectively with OUTB end.
5. the intelligent bus sky of one according to claim 4 is opened, it is characterized in that: described relay is magnetic latching relay, and this relay comprises magnetic conductor, permanent magnet, with the armature of moving contact, the first fixed contact and the second fixed contact, described magnetic conductor is U-shaped magnetic conductor, described permanent magnet is fixedly installed on U-shaped magnetic conductor U word bottom, there is coil described magnetic conductor both sides respectively diffraction, described coil two ends drive the OUTA end of chip U3 and OUTB end to be connected with magnetic latching relay respectively, be connected with the armature with moving contact with permanent magnet top, and described U-shaped magnetic conductor U word opening is stretched out in this armature one end with moving contact, described U-shaped magnetic conductor U word opening part one side is provided with the first fixed contact, opposite side is provided with the second fixed contact, the described armature with moving contact is according to the difference of the sense of current of the coil on magnetic conductor, realize the connection with the first fixed contact or the second fixed contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420321023.8U CN204012641U (en) | 2014-06-17 | 2014-06-17 | A kind of intelligent bus sky is opened |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420321023.8U CN204012641U (en) | 2014-06-17 | 2014-06-17 | A kind of intelligent bus sky is opened |
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| Publication Number | Publication Date |
|---|---|
| CN204012641U true CN204012641U (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420321023.8U Expired - Lifetime CN204012641U (en) | 2014-06-17 | 2014-06-17 | A kind of intelligent bus sky is opened |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104037721A (en) * | 2014-06-17 | 2014-09-10 | 林荣坤 | Air switch and air switch intelligent control method |
| CN105609374A (en) * | 2016-03-18 | 2016-05-25 | 彭旭华 | Bistable magnetic latching bridge type breakaway relay based on mechanical H bridge |
| CN107230971A (en) * | 2017-07-12 | 2017-10-03 | 广州庞盛电子科技有限公司 | One kind is with light-operated longitude and latitude intelligent power protection device and control flow |
-
2014
- 2014-06-17 CN CN201420321023.8U patent/CN204012641U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104037721A (en) * | 2014-06-17 | 2014-09-10 | 林荣坤 | Air switch and air switch intelligent control method |
| CN104037721B (en) * | 2014-06-17 | 2018-06-19 | 林荣坤 | A kind of air switch and air switch intelligent control method |
| CN105609374A (en) * | 2016-03-18 | 2016-05-25 | 彭旭华 | Bistable magnetic latching bridge type breakaway relay based on mechanical H bridge |
| CN107230971A (en) * | 2017-07-12 | 2017-10-03 | 广州庞盛电子科技有限公司 | One kind is with light-operated longitude and latitude intelligent power protection device and control flow |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200113 Address after: One of the 5th Floors, 27-1 Torch East Road, Huli District, Xiamen City, Fujian Province, 361000 Patentee after: XIAMEN DINGAN ELECTRONIC Co.,Ltd. Address before: 363000 Fujian city of Zhangzhou province Changtai County town of Xi Xia Mei Murata No. 19 central rock Patentee before: Lin Rongkun |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141210 |