GB2475573A - An intelligent polar identifying device - Google Patents
An intelligent polar identifying device Download PDFInfo
- Publication number
- GB2475573A GB2475573A GB1005629A GB201005629A GB2475573A GB 2475573 A GB2475573 A GB 2475573A GB 1005629 A GB1005629 A GB 1005629A GB 201005629 A GB201005629 A GB 201005629A GB 2475573 A GB2475573 A GB 2475573A
- Authority
- GB
- United Kingdom
- Prior art keywords
- module
- identification device
- polarity identification
- control circuit
- automatic polarity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 230000001012 protector Effects 0.000 claims description 7
- 230000001681 protective effect Effects 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0034—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using reverse polarity correcting or protecting circuits
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Jigs For Machine Tools (AREA)
Abstract
An intelligent polar identifying device includes an electromagnetic module (1) and a control circuit (2). The electromagnetic module (1) includes a magnetic inductor (101), an active contact strip (102) coaxial with the magnetic inductor (101) and a fixed contact strip (103). The control circuit (2) comprises a reverse connection alarm protection module and a straight connection conducting module. The reverse connection alarm protection module includes an alarm module and a protection module in parallel. The protection module includes a second diode (D2) and a photoelectric coupler (U1) in series. The straight connection conduction module includes a conducting part and an indicating module that are electrically connected with the photoelectric coupler (U1). The device utilizes magnetic force for controlling and insures automatically identify the connecting state of the electric apparatus weather clamps is rightly connected to a positive pole and a cathode of the exterior power source and guarantees normal charging, thus protecting the power source and the electric apparatus.
Description
AUTOMATIC POLARITY IDENTIFICATION DEVICE
FIELD OF THE INVENTION
This invention involves an automatic polarity identification device, which is particularly applicable to emergency auto power supplies.
BACKGROUND OF THE INVENTION
A typical emergency power supply has a red anode and a black cathode. When the two poles are connected in reverse, a short circuit will occur, which may damage the power supply and the electric appliances in use. A known protector usually avoids the above-mentioned short circuit through use of a reverse-connection alarm and a manually controlled high current switch so as to protect the power supply and the appliances.
SUMMARY OF THE INVENTION
The invention provides an automatic polarity identification device, controlled by magnetic force, which ensures that the clamp will identify the automatically whether it is correctly connected to the positive and negative poles of the external power supply, and then guarantees the normal work of charging.
To achieve the aim, the invention provides an automatic polarity identification device, which comprises an electromagnetic module connected to a control circuit, and an internal electrical source as the power supply for the control circuit.
The electromagnetic module includes: a magnetic inductor, which includes a rotor, the lead terminals of the magnetic inductor being connected respectively to the control circuit; a movable contact plate, coaxially arranged with the magnetic inductor, which moves up and down under the limit control of the rotor on the magnetic inductor; stationary contact plates, fixed on the electromagnetic module, with one plate connection to the anode of the clamp, and the other to the positive pole of the internal power supply.
The control circuit is connected to the internal power supply, and the control circuit is also connected to the anode clamp and the cathode clamp respectively. The control circuit comprises a reverse-connection alarm protector module and forward-connection conduction module.
The reverse-connection alarm protector module includes an alarm module and a protection module connected in parallel.
The alarm module includes a sound module and a light module, which are connected in parallel or in series.
The sound module includes a first diode and a buzzer connected in series.
The light module is a first LED and a current-limiting resistor connected in series.
The protection module includes a second diode and aphotocoupler. The direction of the second diode is opposite to that of the first diode and that of the first LED.
The forward-connection conduction module includes a conduction module and an indicator module, respectively connected with the said photocoupler.
The conduction module is a transistor, whose base electrode is connected to the output of the photocoupler, the collector electrode is connected to the magnetic inductor, and the emitter electrode is connected to the ground.
The indicator module is a second LED.
The invention provides an automatic polarity identification device, controlled by magnetic force, which ensures that the clamp will identify the automatically whether it is correctly connected to the positive and negative poles of the external power supply, and then guarantees the normal work of charging so as to protect the power supply and the appliance.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG I is the structural drawing of the automatic polarity identification device.
FIG 2 is the structural drawing of its electromagnetic module.
FIG 3 is the structural drawing of its control circuit.
DETAILED DESCRIPTION OF THE INVENTION
As show in Figs 1-3, the following is a detailed description of a preferred embodiment for carrying out the invention: Fig I displays an automatic polarity identification device involving an electromagnetic module 1 connected with a control circuit 2, and an internal power supply V which supplies power to the control circuit 2.
Fig 2 displays an electromagnetic module I including a magnetic inductor 101 with a rotor 1011. The lead terminals 1012 of the magnetic inductor are connected to the control circuit 2.
A movable contact plate 1 O2is coaxially arranged with the magnetic inductor 101.
Under the control of the rotor 1011 on the magnetic inductor 101, it makes up and down movements.
Two stationary contact plates 103 are fixed on the electromagnetic module I. The contact plate on one side is connected to the anode clamp 11 and the contact plate on the other side is connected to the "+" terminal of the internal power supply V. As shown in fig 3, the mentioned control circuit 2 is connected to the internal power supply V and is also connected respectively to the anode clamp II and the cathode clamp 12. The control circuit 2 includes a reverse connection alarm protector module connected to a forward connection conduction module.
The reverse-connection alarm protector module includes an alarm module and a protective module connected in parallel.
The said alarm module involves a sound module and a light module connected in parallel.
The sound module involves a first diode Dl and a buzzer 201 connected in series.
The light module is the first light emitting diode LEDI and connects to a limiting resistor Ri in series.
The said protective module involves a second diode D2 and a photocoupler UI. The direction of the second diode D2 is opposite to that of the first diode Dl and that of the first light emitting diode LED 1.
The forward-connection conduction module involves a conduction module and an indication module, respectively connected to the said photocoupler UI.
The said conduction module is a transistor QI whose base electrode is connected to the output of the photocoupler U 1, the collector electrode is connected to the magnetic inductor 101 and the emitting electrode is connected to the ground. The base electrode can be connected to a regulating resistor R2 in series.
The indication module is the second light emitting diode LED2, which can be connected to a regulating resistor R3 in series.
When the anode clamp 11 is connected to the "-"terminal of the external power supply and the cathode clamp 12 is connected to the "+"terminal (i.e. connected reversely), the diode Dl and the light emitting diode LEDI conduct due to a forward voltage, the light emitting diode LEDI emits red light and the buzzer 201 sounds the alarm. Meanwhile, the diode D2 and the photocoupler U 1 lack conduction because of the imposed reverse voltage. The transistor Qidoes not work, the magnetic inductor 101 fails to generate magnetic field, the dynamic contact point K! cannot pull in and the rotor 1011 cannot push the movable contact plate 102 to the stationary contact plate 103. Thus the short circuit caused by the wrong operation can be avoided and the power supply and electric appliances can be protected.
When the anode clamp 11 is connected to the "+"terminal of the external power supply and the cathode clamp 12 is connected to the"-"terminal (which is connected correctly), the diode Dl and the light emitting diode LED! lack conduction, the buzzer 20ldoes not work, the diode D2 and the photocoupler U! conduct and emit green light, which indicates normal operation. Transistor QI conducts and magnetic inductor 101 generates a magnetic field. The dynamic contact point K! pulls in and the rotor 1011 pushes the movable contact plate 102 to the stationary contact plate 103, which makes the device connect normally with the external power supply to form a closed circuit.
Although the content of the invention has been described in detail in the aforementioned preferred embodiment, the description shall not be taken as a restriction to the invention. Those skilled in this field who have read the aforementioned description can make obvious modification and substitution to this invention. Therefore the scope of the invention shall be restricted by the attached claims.
Claims (10)
- Claims 1. An automatic polarity identification device, includes an electromagnetic module (1) connected with a control circuit (2), and an internal power supply (V), wherein, the said electromagnetic module (1) includes: a magnetic inductor (101); a movable contact plate (102), coaxially arranged with the said magnetic inductor (101); a stationary contact plate (103); the said control circuit (2) includes a reverse-connection alarm protector module connected with a forward-connection conduction module; the reverse-connection alarm protector module includes an alarm module connected to a protective module in parallel; the said protective module involves a second diode (D2) and a photocoupler (Ul), wherein the direction of the second diode (D2) is opposite to that of the first diode (Dl) and that of the first light emitting diode (LED 1); the said forward-connection conduction module involves a conduction module and an indication module, respectively connected with the said photocoupler (UI).
- 2. The automatic polarity identification device of claim I, wherein the magnetic inductor (101) includes a a rotor (1011); the said rotor (1011) controls the up and down movements of the movable contact plate(102); the lead terminals (1012) of the said magnetic inductor (101) are connected with the control circuit (2).
- 3. The automatic polarity identification device of claim 1, wherein the said stationary contact plate (103) is fixed on the electromagnetic module (1); the contact plate on one side is connected to the anode clamp (II) and the contact plate on the other side is connected to the "+" terminal of the internal power supply (V).
- 4. The automatic polarity identification device of claim 1, wherein the said control circuit (2) is connected to the internal power supply (V) and is also connected respectively to the anode clamp (II) and the cathode clamp (12).
- 5. The automatic polarity identification device of claim 1, wherein the said alarm module involves a sound module and a light module connected in parallel or in series.
- 6. The automatic polarity identification device of claim 5, wherein the said sound module involves a first diode (Dl) and a buzzer (201) connected in series.
- 7. The automatic polarity identification device of claim 6, wherein the light module is the first light emitting diode (LEDI) and connects a limiting resistor (RI) in series.
- 8. The automatic polarity identification device of claim 1, wherein the said conduction module is a transistor (Qi) whose base electrode is connected to the output end of the photocoupler (U 1), the collector electrode is connected to the magnetic inductor (101) and the emitting electrode is connected to the ground; and wherein the base electrode is optionally connected to a regulating resistor (R2) in series.
- 9. The automatic polarity identification device of claim I, wherein the indication module is a second light emitting diode (LED2), which can be connected to a regulating resistor (R3) in series.
- 10. The automatic polarity identification device of claim 1, wherein the said control circuit (2) includes an internal power supply (V).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2009/075092 WO2010139157A1 (en) | 2009-06-02 | 2009-11-23 | An intelligent polar identifying device |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB201005629D0 GB201005629D0 (en) | 2010-05-19 |
| GB2475573A true GB2475573A (en) | 2011-05-25 |
| GB2475573A8 GB2475573A8 (en) | 2011-06-22 |
Family
ID=42228836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1005629A Withdrawn GB2475573A (en) | 2009-11-23 | 2009-11-23 | An intelligent polar identifying device |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2475573A (en) |
-
2009
- 2009-11-23 GB GB1005629A patent/GB2475573A/en not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| NOT YET ADVISED * |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2475573A8 (en) | 2011-06-22 |
| GB201005629D0 (en) | 2010-05-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2705926C (en) | Automatic polarity identification device | |
| US20220158462A1 (en) | Smart connection device, jump starter, and battery clamp | |
| US11277014B1 (en) | Smart connection device, start-up power supply, and battery clamp | |
| EP3096430B9 (en) | Electric vehicle and power supply circuit for a vehicle control device with alternating current charging thereof | |
| CN104467044A (en) | Charging control circuit and charger | |
| CN103713232A (en) | Intelligent alarm capable of preventing battery reverse polarity | |
| US7800249B1 (en) | Power supply system | |
| CN107706995A (en) | A kind of charging device with battery reversal connection protection function | |
| CN209881386U (en) | Protection circuit for electrification of shell | |
| CN100435445C (en) | Automatic electrode | |
| GB2475573A (en) | An intelligent polar identifying device | |
| CN103346443A (en) | Safe earth leakage protection plug giving alarm about earth wire electrification abnormity | |
| CN109217856A (en) | A kind of power electronic switching | |
| CN203300911U (en) | Safe earth leakage protection plug with charged ground line alarm function | |
| CN111381153A (en) | Relay contact state detection circuit and state detection method thereof, and electric automobile | |
| CN211508615U (en) | Power supply reverse connection prevention protection circuit | |
| CN210724282U (en) | Overcharge protection circuit for storage battery | |
| CN212462761U (en) | Dual short-circuit protection circuit | |
| CN104659847A (en) | Battery charging control circuit and lamp | |
| WO2013159580A1 (en) | Vehicle emergency rescue device | |
| CN103840428A (en) | Undervoltage protection circuit and lamp | |
| CN202150690U (en) | Protective device of auxiliary power supply | |
| CN2298524Y (en) | Multifunction silicon controlled detector | |
| CN218102942U (en) | Electric energy output control circuit and energy storage equipment | |
| CN210517831U (en) | Reverse connection prevention protection circuit and charger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |