CN211790900U - Emergency load circuit and device capable of being turned off and charged - Google Patents
Emergency load circuit and device capable of being turned off and charged Download PDFInfo
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- CN211790900U CN211790900U CN202020536036.2U CN202020536036U CN211790900U CN 211790900 U CN211790900 U CN 211790900U CN 202020536036 U CN202020536036 U CN 202020536036U CN 211790900 U CN211790900 U CN 211790900U
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Abstract
The utility model relates to an electronic circuit technical field, concretely relates to emergent load circuit and device that can turn off light and charge, this circuit include commercial power input line, first switch, second switch, third switch, switch detection and control circuit, charge management circuit, emergent detection management circuit, energy storage battery, first load circuit and second load circuit. The emergency detection management circuit carries out charge and discharge management on the energy storage battery, after the first switch is closed, the emergency detection management circuit detects that the energy storage battery is not fully charged, then the energy storage battery continues to be charged, when a user uses up the first load, the on-off state of the first switch can be controlled, for example, the first switch is closed twice continuously in a short time, after the switch detection and control circuit detects the state of the first switch, the third switch can be controlled to be switched on, the charging management circuit also charges the energy storage battery, the energy storage battery is charged by large current at the same time, and the energy storage battery is rapidly fully charged.
Description
Technical Field
The utility model relates to an electronic circuit technical field, concretely relates to can turn off lamp emergency load circuit and device that charges.
Background
At present, in some laggard countries, such as india, indonesia and the like, the power grid of the countries is laggard, power can be cut off frequently, and the power can be stopped 7-8 times a serious day, so that the problem of power failure can be frequently encountered when the lamp is used at night, which brings great inconvenience to life. Aiming at the phenomenon, the LED emergency lighting bulb lamp is provided by the utility model on the existing LED bulb lamp, when the lamp is used at night, the power is cut off suddenly at the moment, the LED lighting can be switched to the emergency lighting state, and the LED emergency lighting bulb lamp can generally continuously light for about 1-4 hours. Because the energy storage battery supplies power when in emergency, the energy storage battery needs to be charged again to be used continuously after discharging. The emergency lamp on the market can be charged basically when the lamp is turned on, and a 2000mA/H energy storage battery can be fully charged after being charged for more than 8 hours when being charged at about 300 mA. Firstly, the time for turning on the lamp is not long, and the other place is frequently powered off, so that the energy storage batteries in the lamps are continuously used without being fully charged, so that the emergency lighting time is shortened, and the batteries are damaged. However, it is impossible to keep the lamp charged for charging the energy storage battery, which is not in line with the current purposes of energy saving and environmental protection.
SUMMERY OF THE UTILITY MODEL
The application provides an emergency load circuit and device that can turn off light and charge, its aim at charges energy storage battery under the circumstances of turning on the light, can also continue energy storage lithium cell to charge after turning off the light simultaneously, can open emergency equipment through energy storage battery power supply under the outage circumstances moreover to this reaches energy-concerving and environment-protective purpose of extension energy storage battery life-span simultaneously.
An emergency load circuit capable of extinguishing and charging a lamp comprises a mains supply input line, a first switch, a second switch, a third switch, a switch detection and control circuit, a charging management circuit, an emergency detection management circuit, an energy storage battery, a first load line and a second load line;
the input end of the mains supply input line is connected with a mains supply and used for connecting the mains supply, and the first switch is arranged on the mains supply input line and used for controlling the on-off of a mains supply line; the output end of the commercial power input line is connected with the input end of the switch detection and control circuit, and the switch detection and control circuit is used for detecting the switch state of the first switch;
the input end of the charging management circuit is connected with the output end of the commercial power input line, and the output end of the charging management circuit is connected with the energy storage battery and used for carrying out charging management on the energy storage battery;
the input end of the emergency detection management circuit is connected with the input end of the mains supply input line, the output end of the emergency detection management circuit is also connected with the energy storage battery, the emergency detection management circuit is used for detecting the voltage and/or resistance information of the mains supply input line and controlling the on-off of the second load according to the voltage and/or resistance information, and meanwhile, the emergency detection management circuit is also used for carrying out charging and discharging management on the energy storage battery;
the output end of the commercial power input line is further connected with the input end of the first load line, the output end of the first load line is used for connecting a first load, the second switch is arranged on the first load line, and the switch detection and control circuit is further used for controlling the state of the second switch according to the switching state of the first switch so as to control the working state of the first load;
the output end of the emergency detection management circuit is also connected with the second load line, the output end of the second load line is used for connecting a second load, and the emergency detection management circuit is also used for controlling whether to supply power to the second load according to the voltage and/or resistance information;
the third switch is arranged on a line between the commercial power input line and the charging management circuit, and the switch detection and control circuit is further used for controlling the state of the third switch according to the switching state of the first switch so as to control the charging management module to charge the energy storage battery.
In one embodiment, the emergency detection device further comprises a rectifying circuit, and the output end of the commercial power input line is connected with the input ends of the charging management circuit and the emergency detection management circuit through the rectifying circuit respectively.
In one embodiment, the emergency detection circuit further comprises a voltage reduction circuit, an output end of the rectification circuit is connected with an input end of the voltage reduction circuit, an output end of the voltage reduction circuit is connected with input ends of the charging management circuit and the emergency detection management circuit, and the voltage reduction circuit is used for reducing the voltage of the rectified direct current to the voltage matched with the energy storage battery.
In one embodiment, the charging management circuit further comprises a flyback power supply circuit, the output end of the rectifying circuit is connected with the input end of the flyback power supply circuit, and the output end of the flyback power supply circuit is connected with the input ends of the charging management circuit and the voltage reduction circuit respectively.
Preferably, the energy storage battery is a lithium battery.
Wherein the switch detection and control circuit is further configured to control the state of the second switch according to the switching state of the first switch, so as to control the operating state of the first load, including:
when the switch detection and control circuit detects that the commercial power input line is electrified and the first switch is closed for the first time, the switch detection and control circuit controls the second switch to be closed to supply power to the first load so as to enable the first load to work; and simultaneously controlling the third switch to be switched off so that the charging management circuit does not work.
Simultaneously emergent detection management circuit still is used for right energy storage battery carries out charge-discharge management includes:
if the emergency detection management circuit detects that the energy storage battery is not fully charged, the energy storage battery is charged, if the emergency detection management circuit detects that the energy storage battery is fully charged, the energy storage battery is stopped to be charged, and the emergency detection management circuit is also used for charging and discharging protection of the energy storage battery.
Wherein the emergency detection management circuit is further configured to control whether to supply power to the second load according to the voltage and/or resistance information, including:
if the emergency detection management circuit detects that voltage exists between the commercial power input lines, the emergency detection management circuit does not supply power to the second load;
if the emergency detection management circuit detects that no voltage exists between the commercial power input lines but the commercial power input lines are in a high-resistance state, the emergency detection management circuit does not supply power to the second load;
and if the emergency detection management circuit detects that no voltage exists between the commercial power input lines and the commercial power input lines are in a low-resistance state, supplying power to the second load.
Wherein the switch detection and control circuit is further configured to, upon detecting that the switch state of the first switch is: after the mains supply is powered on and is closed for the first time, the mains supply is disconnected again, and when the mains supply is closed for the first time within preset time, the second switch is controlled to be disconnected, so that the first load does not work; and simultaneously controlling the third switch to be closed, so that the charging management circuit charges the energy storage battery.
An emergency load device capable of being turned off and charged is characterized by comprising the emergency load circuit capable of being turned off and charged.
Furthermore, the load circuit is arranged in the insulating shell, and the input end of a commercial power input line of the load circuit, the output end of the first load line and the output end of the second load line are all arranged outside the insulating shell.
According to the emergency load circuit and the emergency load device capable of extinguishing and charging the lamp, the first switch is arranged on the commercial power input line, the switch detection and control circuit is used for detecting the switching state of the first switch so as to control the states of the second switch and the third switch, and the output end of the charging management circuit is connected with the energy storage battery and used for charging management of the energy storage battery. The output end of the emergency detection management circuit is also connected with the energy storage battery and used for detecting the voltage and/or resistance information of the commercial power input line and controlling the on-off of the second load according to the voltage and/or resistance information, and meanwhile, the emergency detection management circuit is also used for carrying out charging and discharging management on the energy storage battery. When the commercial power has the electricity, when the user normally uses electricity, then emergent detection management circuit detects that energy storage battery is not full of then to charge energy storage battery, until energy storage battery is full of, simultaneously, use up first load when the user, can be through the on off state of control first switch, for example close twice in succession in the time of predetermineeing, switch detection and control circuit detect this first switch's state after, can also control the third switch and switch on, make charging management circuit also charge energy storage battery, add emergent detection management circuit's the charging this moment, make energy storage battery have the heavy current to charge simultaneously, be full of fast. When the commercial power is cut off, and when the user still needs to use the lamp or other loads, then the first switch is closed, and the emergency detection management circuit detects that no voltage is on the commercial power input line but is in a low-resistance state, then supplies power to the second load, makes it carry out emergency operation mode. Through the circuit of this application for the battery is in full charge state basically, prolongs the life of battery, has avoided the electroless awkward condition of energy storage battery when the outage simultaneously.
Drawings
Fig. 1 is a circuit diagram of an emergency load capable of extinguishing and charging lights according to an embodiment of the present application;
fig. 2 is a circuit diagram of a switch detection and control circuit according to an embodiment of the present disclosure.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.
Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the method descriptions may be transposed or transposed in order, as will be apparent to one of ordinary skill in the art. Thus, the various sequences in the specification and drawings are for the purpose of describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where such sequence must be followed.
The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning.
The embodiment of the utility model provides an in, its purpose can realize not only can charging for energy storage battery when turning on the lamp, can also be when not using the lamp at ordinary times, is turning off the lamp and charges for energy storage battery. The limitation that only the lamp can be turned on for charging is broken through, and the fully charged state of the battery can be ensured. And the charging current can be made larger, so that the rapid full charging is realized. It is also possible to achieve PF values above 0.9 for both charged and uncharged states for a high PF scheme.
The utility model provides an emergency load circuit that can turn off light and charge, it includes first load circuit and second load circuit, is used for connecting first load and second load respectively, and first load normally works when the commercial power has the electricity, when the commercial power outage, gives the second load power supply through energy storage battery, and the second load can emergent work. The circuit of this application, when the commercial power has the electricity, charges for energy storage battery through emergent detection management circuit, and after the user turned off the lamp, emergent detection management circuit can also continue to charge for energy storage battery. The state of the first switch can be detected through the switch detection and control circuit, and if the first switch is in the powered state, the state of the first switch is actively controlled through a user, for example, the commercial power is powered on and is firstly closed, then the first switch is disconnected, and when the first switch is firstly closed within a preset time, the second switch is controlled to be disconnected, so that the first load does not work; and meanwhile, the third switch is controlled to be closed, so that the charging management circuit also charges the energy storage battery, and the charging current of the energy storage battery is increased by charging the emergency detection management circuit, so that the energy storage battery can be quickly charged and stops after being fully charged. Therefore, the energy storage battery is in a full-power state in the next emergency. In addition, the emergency detection management circuit can also actively detect the voltage and resistance states of the commercial power input line, and when no voltage exists and the commercial power input line is in a low-resistance state, the energy storage battery is controlled to supply power to the second load, so that the second load can work.
The first embodiment is as follows:
referring to fig. 1, the present embodiment provides an emergency load circuit capable of extinguishing and charging a light, which includes a utility power input line 1, a first switch SW1, a second switch SW2, a third switch SW3, a switch detection and control circuit 3, a charging management circuit 8, an emergency detection management circuit 9, an energy storage battery 10, a first load line 4, and a second load line 11.
Wherein, the input of commercial power input line 1 and commercial power connection for insert the commercial power, it includes live wire and zero line, and first switch SW1 sets up on the live wire of commercial power input line 1 for control commercial power circuit's break-make. The output of the mains input line 1 is connected to the input of a switch detection and control circuit 3, which switch detection and control circuit 3 is used to detect the switching state of the first switch SW1, for example, whether it is currently closed or open, and also to detect the number of times it is switched on and off in a short time.
The input end of the charging management circuit 8 is connected with the output end of the mains supply input line 1, the output end of the charging management circuit 8 is connected with the energy storage battery 10, and the charging management circuit 8 is used for controlling the mains supply to perform charging management on the energy storage battery 10, for example, the charging management circuit stops automatically when being fully charged, and the charging current and voltage of the controller are controlled. The third switch SW3 is disposed on a line between the output end of the utility power input line 1 and the charging management circuit 8, and can control the on/off of the charging management circuit 8.
The input end of the emergency detection management circuit 9 is connected with the input end of the mains input line 1, the output end of the emergency detection management circuit is also connected with the energy storage battery 10, the emergency detection management circuit is used for detecting voltage and resistance information between two lines of the mains input line 1, when the mains is electrified, the voltage and resistance information is in a high-resistance state, when the first switch SW1 is disconnected, the resistance information is in a low-resistance state, when the first switch SW1 is closed, the emergency detection management circuit 9 can know whether the current state is in an emergency state according to the voltage and resistance information, and accordingly whether power is supplied to the second load is controlled, namely the on-off of the second load 6 is controlled. Meanwhile, the emergency detection management circuit 9 manages charge and discharge protection of the energy storage battery, and has the same charge management function as the charge management circuit 8, namely, the functions of controlling the current and voltage of the battery, stopping when the battery is fully charged and the like.
The output end of the utility power input line 1 is further connected to the input end of the first load line 4, the output end of the first load line 4 is used for connecting the first load 5, the first load 5 works when the utility power is in normal state, for example, the first load 5 is a lighting lamp and lights under normal condition, the second switch SW2 is arranged on the first load line 4, and the switch detection and control circuit 3 is further used for controlling the state of the second switch SW2 according to the switching state of the first switch SW1 so as to control the working state of the first load. For example, normally, when the commercial power is powered, when the switch detection and control circuit 3 detects that the first switch SW1 is closed for the first time, the second switch SW2 is controlled to be closed, so that the first load 5 operates. When the commercial power is detected and the first switch SW1 is turned off, indicating that the user does not need lighting, the second switch SW2 is controlled to be turned off, so that the first load 5 does not work.
In this embodiment, the second switch SW2 and the third switch SW3 may be implemented by a triode switch, for example, MOS transistors, and the on/off of the switches is controlled by controlling the control electrodes of the MOS transistors. The first switch SW1 of the present application may be selected from the normal household light switch.
The output end of the emergency detection management circuit 9 is further connected to the second load line 11, the output end of the second load line 11 is used for connecting the second load 6, and the emergency detection management circuit 9 is further used for controlling whether to supply power to the second load 6 according to the voltage and/or resistance information, for example, when the mains supply is dead and the first switch SW1 is closed, the emergency detection management circuit 9 detects that no voltage exists and is in a low-resistance state, and can know whether the current state is in an emergency state, and then supply power to the second load 6, so that the second load enters an emergency working mode.
The third switch SW3 is disposed on a line between the utility power input line 1 and the charging management circuit 8, and the switch detection and control circuit 3 is further configured to control a state of the third switch according to a switching state of the first switch SW1, so as to control whether the charging management module charges the energy storage battery. For example, the user may set that, when the switch detection and control circuit 3 detects that the switch state of the first switch SW1 is: after the mains supply is powered on and is closed for the first time, the mains supply is disconnected again, and when the mains supply is closed for the first time within 3 seconds, the second switch SW2 is controlled to be disconnected, so that the first load 5 does not work; and at the same time, controls the third switch SW3 to close, so that the charging management circuit 8 charges the energy storage battery. In addition, the charging of the emergency detection management circuit 9 increases the charging current of the energy storage battery 10, so that the energy storage battery can be quickly fully charged and can be stopped after being fully charged.
Further, the circuit of this embodiment still includes rectifier circuit 2, and the output of commercial power input line 1 is connected with charge management circuit 8 and emergency detection management circuit 9's input respectively through this rectifier circuit 2, and this rectifier circuit is used for becoming the direct current with the commercial power rectification.
Further, the load circuit further comprises a flyback power supply circuit 12, an output end of the rectifying circuit 2 is connected with an input end of the flyback power supply circuit 12, and an output end of the flyback power supply circuit 12 is connected with input ends of the charging management circuit 8 and the voltage reduction circuit 7 respectively. The flyback power supply circuit 12 has a function of constant voltage and constant current, and is configured to step down the rectified dc power and output the dc power of constant voltage and constant current.
Further, the circuit of this embodiment still includes step-down circuit 7, specifically adopts DC-DC step-down circuit, and rectifier circuit 2's output is connected with step-down circuit 7's input, and step-down circuit 7's output is connected with charge management circuit 8 and emergency detection management circuit 9's input, and step-down circuit 7 is used for reducing the direct current's after the rectification voltage to the voltage with energy storage battery 10 adaptation. For example, the dc power reduced to 5V charges the energy storage battery 10.
The energy storage battery 10 of the present embodiment is a lithium battery, which has the advantages of high density, strong electricity storage capability, and long service life.
The switch detection and control circuit 3 is further configured to control the state of the second switch SW2 according to the switch state of the first switch SW1, so as to control the operating state of the first load 5, including: when the switch detection and control circuit 3 detects that the commercial power input line 1 is powered and the first switch SW1 is closed for the first time, which indicates that the user is using power normally, the switch detection and control circuit controls the second switch SW2 to be closed to supply power to the first load 5 so as to enable the first load to work; and at the same time, controls the third switch SW3 to be turned off, so that the charge management circuit 8 does not operate.
The switch detection and control circuit 3 of the present embodiment is a chip with a chip model number SP1202M, which is mainly used for switch segment dimming in the prior art, and a circuit diagram of the switch detection and control circuit 3 is shown in fig. 2.
Wherein, the emergency detection management circuit 9 judges and determines whether to charge the energy storage battery 10 according to the voltage and resistance information between the live wire and the zero line of the commercial power input line 1, and includes:
1) when the emergency detection management circuit detects that the energy storage battery is in an unfilled state and the commercial power is switched on, the energy storage battery 10 is charged unless the emergency detection management circuit 9 simultaneously monitors that the energy storage battery 10 is fully charged. If the emergency detection management circuit detects that voltage exists between the commercial power input lines, the emergency detection management circuit does not supply power to the second load;
2) if the emergency detection management circuit 9 detects that voltage exists between the commercial power input lines 1, the commercial power is indicated to work normally, and power is not supplied to the second load;
3) if the emergency detection management circuit 9 detects that no voltage exists between the mains supply input lines 1 and the mains supply input lines are in a high-resistance state, the mains supply is not powered, but the user does not turn off the first switch SW1, so that the current user does not need the emergency load to work, and the second load 6 is not powered;
4) if the emergency detection management circuit 9 detects that there is no voltage between the utility power input lines 1 but it is in a low-resistance state, it indicates that there is no current utility power, but the user closes the first switch SW1, which indicates that the user needs the emergency load to work, then power is supplied to the second load 6. The emergency detection management circuit 9 of this embodiment adopts a chip with a chip model SP 1692.
Another important design of this application lies in, the user accessible control first switch SW 1's state realizes quick charge, specifically, can set for, the user can be after the first switch SW1 of first closure when the commercial power has the electricity, the disconnection again and closed for the first time in 3 seconds, then start quick charge, specific time of predetermineeing is several seconds, the user can oneself set for, general condition can set up to 3-5 seconds, close again when exceeding time of predetermineeing outside or be less than time of predetermineeing then return to original state, do not start quick charge promptly. When the switch detection and control circuit 3 detects that the switch state of the first switch SW1 is: after the mains supply is powered on and is firstly closed, the mains supply is switched off and is firstly closed within 3 seconds, the second switch SW2 is controlled to be switched off, so that the first load 5 does not work, and at the moment, a user does not need to use power, namely, the light is turned off; meanwhile, the third switch SW3 is controlled to be closed, so that the charging management circuit 8 charges the energy storage battery 10, and the charging current of the energy storage battery 10 is increased by the charging of the emergency detection management circuit 9, so that the energy storage battery can be quickly fully charged and stops after being fully charged.
The circuit operation of the present application is further described below in terms of both normal operation and lamp-off charging:
1. normal lighting working state
When the commercial power is on and the first switch SW1 is turned on for the first time, the commercial power supplies power to the rectifying circuit 2 through the L, N line of the commercial power input line 1, and then outputs a direct current with a constant voltage and a constant current through the rectifying circuit 2 and the flyback power circuit 12, the switch detection and control circuit 3 detects that the first switch SW1 is turned on for the first time, and then controls the second switch SW2 to be turned on to supply power to the first load 5, for example, to light an LED, and at the same time, the first switch SW1 controls the third switch SW3 to be turned off, so that the GND of the charging management circuit 8 is turned off and does not work; meanwhile, the first switch SW1 supplies power to the voltage reduction circuit 7, the DC-DC voltage reduction circuit outputs a stable 5V voltage to the emergency detection management circuit 9 and the charging management circuit 8, the charging management circuit 8 does not work due to the fact that the third switch SW3 is disconnected at the moment, only the emergency detection management circuit 9 works, and the 5V voltage output by the DC-DC voltage reduction circuit 7 charges the energy storage battery 10 through the emergency detection management circuit 9. The emergency detection management circuit 9 detects L, N that the line has an AC voltage, does not enter an emergency state, does not supply power to the second load 6, and the second load 6 is not operating, e.g., the emergency LED light is not on.
2. Working state of turning off lamp for charging
2.1, when the commercial power is charged and the first switch SW1 is closed for the first time, then the first switch SW1 is opened and the first switch SW1 is closed again within about 3 seconds, after the switch detection and control circuit 3 detects the switch state of the first switch SW1, the second switch SW2 is controlled to be opened, the GND of the first load 5 is opened, the first load 5 is not supplied with power, and if the first load 5 is an LED lamp, the LED lamp is not on. Meanwhile, the third switch SW3 is controlled to be closed, that is, the GND of the charging management circuit 8 is closed, so that the charging management circuit 8 can work normally; meanwhile, the rectifying circuit 2 supplies power to the voltage reduction circuit 7, the voltage reduction circuit 7 outputs a stable 5V voltage to the charging management circuit 8 and the emergency detection management circuit 9, the 5V voltage output by the voltage reduction circuit 7 is charged for the energy storage battery 10 through the charging management circuit 8 and the emergency detection management circuit 9, and large current and quick charging for the energy storage battery 10 can be achieved. Meanwhile, the emergency detection management circuit 9 detects that an L, N line of the commercial power input line 1 has an AC voltage, does not enter an emergency state, does not supply power to the second load 6, and does not light an LED lamp of the second load.
2.2, when the first switch SW1 is turned off, the L, N line of the utility power input line 1 is no voltage, and the two lines are in a high impedance state, so when the emergency detection management circuit 9 detects that the L, N line is no voltage, and the two lines are in a high configuration, the emergency detection management circuit 9 does not enter the emergency lighting state, and does not supply power to the second load 6, and the LED lamp of the second load 6 is not lit.
Various states when the mains is dead:
3.1, when the commercial power is not supplied and the first switch SW1 is closed, the L, N line of the commercial power input line 1 is no voltage, when the emergency detection management circuit 9 detects that the L, N line is no voltage and the two lines are in a low configuration, when the emergency detection management circuit 9 enters an emergency lighting state, the energy storage battery 10 supplies power to the second load 6 through the emergency detection management circuit 9, and the LED lamp of the second load is on to enter the emergency lighting state.
3.2, when the commercial power is not supplied and the first switch SW1 is turned off, the L, N line of the commercial power input line 1 is no voltage, and the two lines are in a high impedance state, so the emergency detection management circuit 9 detects that the L, N line is no voltage, and the two lines are in a high configuration, the emergency detection management circuit 9 does not enter an emergency lighting state, power is not supplied to the second load 6 module, and the LED lamp of the second load is not lighted.
The circuit of the application can realize that the energy storage battery 10 can be charged when the lamp is turned on, and the energy storage battery 10 can be charged when the lamp is not used at ordinary times. The limitation that only the lamp can be turned on for charging is broken through, and the fully charged state of the energy storage battery 10 can be ensured. And the charging current can be made larger, so that the rapid full charging is realized. It is also possible to achieve PF values above 0.9 for both charged and uncharged states for a high PF scheme.
Example two
The embodiment provides a light-off chargeable emergency load device, which comprises the light-off chargeable emergency load circuit provided in the first embodiment.
Furthermore, the device also comprises an insulating shell, the load circuit is arranged in the insulating shell, and the input end of the commercial power input line of the load circuit, the output end of the first load circuit 4 and the output end of the second load circuit 11 are all arranged outside the insulating shell. The user adopts the device, can realize emergent power supply, and can charge for energy storage battery 10 when turning on the lamp, can also turn off the lamp and charge for energy storage battery 10 when not using the lamp at ordinary times. The limitation that only the lamp can be turned on for charging is broken through, and the fully charged state of the energy storage battery 10 can be ensured. And the charging current can be made larger, so that the rapid full charging is realized. It is also possible to achieve PF values above 0.9 for both charged and uncharged states for a high PF scheme.
It is right to have used specific individual example above the utility model discloses expound, only be used for helping to understand the utility model discloses, not be used for the restriction the utility model discloses. To the technical field of the utility model technical personnel, the foundation the utility model discloses an idea can also be made a plurality of simple deductions, warp or replacement.
Claims (10)
1. An emergency load circuit capable of extinguishing and charging is characterized by comprising a mains supply input line, a first switch, a second switch, a third switch, a switch detection and control circuit, a charging management circuit, an emergency detection management circuit, an energy storage battery, a first load line and a second load line;
the input end of the mains supply input line is connected with a mains supply and used for connecting the mains supply, and the first switch is arranged on the mains supply input line and used for controlling the on-off of a mains supply line; the output end of the commercial power input line is connected with the input end of the switch detection and control circuit, and the switch detection and control circuit is used for detecting the switch state of the first switch;
the input end of the charging management circuit is connected with the output end of the commercial power input line, and the output end of the charging management circuit is connected with the energy storage battery and used for carrying out charging management on the energy storage battery;
the input end of the emergency detection management circuit is connected with the input end of the mains supply input line, the output end of the emergency detection management circuit is also connected with the energy storage battery, the emergency detection management circuit is used for detecting the voltage and/or resistance information of the mains supply input line and controlling the on-off of the second load according to the voltage and/or resistance information, and meanwhile, the emergency detection management circuit is also used for carrying out charging and discharging management on the energy storage battery;
the output end of the commercial power input line is further connected with the input end of the first load line, the output end of the first load line is used for connecting a first load, the second switch is arranged on the first load line, and the switch detection and control circuit is further used for controlling the state of the second switch according to the switching state of the first switch so as to control the working state of the first load;
the output end of the emergency detection management circuit is also connected with the second load line, the output end of the second load line is used for connecting a second load, and the emergency detection management circuit is also used for controlling whether to supply power to the second load according to the voltage and/or resistance information;
the third switch is arranged on a line between the commercial power input line and the charging management circuit, and the switch detection and control circuit is further used for controlling the state of the third switch according to the switching state of the first switch so as to control the charging management module to perform charging management on the energy storage battery.
2. A dimmable charging emergency load circuit as claimed in claim 1, further comprising a rectifying circuit through which an output of said mains input line is connected to inputs of said charging management circuit and emergency detection management circuit, respectively.
3. An emergency load circuit capable of unlighting charging according to claim 2, further comprising a voltage-reducing circuit, wherein an output terminal of the rectifying circuit is connected to an input terminal of the voltage-reducing circuit, an output terminal of the voltage-reducing circuit is connected to input terminals of the charging management circuit and the emergency detection management circuit, and the voltage-reducing circuit is configured to reduce a voltage of the rectified direct current to a voltage adapted to the energy storage battery.
4. The emergency load circuit capable of unlighting and charging according to claim 3, further comprising a flyback power circuit, wherein an output terminal of the rectification circuit is connected to an input terminal of the flyback power circuit, and an output terminal of the flyback power circuit is connected to input terminals of the charging management circuit and the voltage reduction circuit, respectively.
5. A dimmable charging emergency load circuit as claimed in claim 1, wherein said switch detection and control circuit is further adapted to control the state of said second switch in accordance with the switching state of said first switch to control the operating state of said first load comprising:
when the switch detection and control circuit detects that the commercial power input line is electrified and the first switch is closed for the first time, the switch detection and control circuit controls the second switch to be closed to supply power to the first load so as to enable the first load to work; and simultaneously controlling the third switch to be switched off so that the charging management circuit does not work.
6. An emergency load circuit capable of unlighting and charging according to claim 1, wherein the emergency detection management circuit is further configured to perform charge and discharge management on the energy storage battery at the same time, and comprises:
if under the closed state of first switch, emergent detection management circuit detects that energy storage battery is in not full charge state, then right energy storage battery charges, if emergent detection management circuit detects that energy storage battery is in full charge state, then stops right energy storage battery charges, emergent detection management circuit still is used for carrying out charge-discharge protection to energy storage battery.
7. A dimmable charging emergency load circuit according to claim 1, wherein said emergency detection management circuit is further configured to control whether to supply power to said second load based on voltage and/or resistance information comprises:
if the emergency detection management circuit detects that voltage exists between the commercial power input lines, the emergency detection management circuit does not supply power to the second load;
if the emergency detection management circuit detects that no voltage exists between the commercial power input lines but the commercial power input lines are in a high-resistance state, the emergency detection management circuit does not supply power to the second load;
and if the emergency detection management circuit detects that no voltage exists between the commercial power input lines and the commercial power input lines are in a low-resistance state, supplying power to the second load.
8. A dimmable charging emergency load circuit as claimed in claim 1, wherein said switch detection and control circuit is further adapted to, upon detecting a switching state of said first switch: after the mains supply is powered on and is closed for the first time, the mains supply is disconnected again, and when the mains supply is closed for the first time within preset time, the second switch is controlled to be disconnected, so that the first load does not work; and simultaneously controlling the third switch to be closed, so that the charging management circuit charges the energy storage battery.
9. An emergency load device capable of being dimmed and charged, comprising a dimmed and charged emergency load circuit according to any one of claims 1 to 8.
10. A switchable charging emergency load device according to claim 9, further comprising an insulating housing, the load circuit being disposed within the insulating housing, the input of the mains input line of the load circuit, the output of the first load line, and the output of the second load line being disposed outside the insulating housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020536036.2U CN211790900U (en) | 2020-04-13 | 2020-04-13 | Emergency load circuit and device capable of being turned off and charged |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020536036.2U CN211790900U (en) | 2020-04-13 | 2020-04-13 | Emergency load circuit and device capable of being turned off and charged |
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| CN211790900U true CN211790900U (en) | 2020-10-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113541280A (en) * | 2020-04-13 | 2021-10-22 | 深圳三浦微电子股份有限公司 | Emergency load circuit and device capable of being turned off and charged |
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2020
- 2020-04-13 CN CN202020536036.2U patent/CN211790900U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113541280A (en) * | 2020-04-13 | 2021-10-22 | 深圳三浦微电子股份有限公司 | Emergency load circuit and device capable of being turned off and charged |
| CN113541280B (en) * | 2020-04-13 | 2024-05-03 | 深圳三浦微电子股份有限公司 | Emergency load circuit and device capable of being charged by turning off light |
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