CN214045116U - Battery power supply circuit and shooting device - Google Patents
Battery power supply circuit and shooting device Download PDFInfo
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- CN214045116U CN214045116U CN202022978610.2U CN202022978610U CN214045116U CN 214045116 U CN214045116 U CN 214045116U CN 202022978610 U CN202022978610 U CN 202022978610U CN 214045116 U CN214045116 U CN 214045116U
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Abstract
The application provides a battery power supply circuit and a shooting device. The battery power supply circuit comprises a first battery pack and a second battery pack, wherein a first input end of a discharge circuit is electrically connected with an output end of the first battery pack, a second input end of the discharge circuit is electrically connected with an output end of the second battery pack, an output end of the discharge circuit is electrically connected with a power supply end of the controller, when the temperature of the first battery pack is within the working temperature range, the first battery pack is communicated with the power supply end through the discharge circuit to supply power to the controller, and when the temperature of the first battery pack is outside the working temperature range, the second battery pack supplies power to the controller through the discharge circuit and the power supply end. The shooting device comprises the battery power supply circuit. So set up, through first group battery and second group battery, supply power for the controller of shooting device under different ambient temperature, can enlarge the application scene of shooting device for the shooting device can keep long-time work, thereby convenience of customers uses.
Description
Technical Field
The application relates to the technical field of electronics, especially, relate to a battery supply circuit and shooting device.
Background
In the security field, the shooting device with low power consumption can meet the monitoring or snapshot requirement of 7 × 24 hours without laying cables. However, in the process of practical application, the photographing device is arranged beside the road, and the battery of the photographing device is prone to be discharged or insufficiently discharged due to continuous rainy weather or low temperature, so that the use of the photographing device is limited, and inconvenience is brought to users.
SUMMERY OF THE UTILITY MODEL
The application provides an improved battery power supply circuit and a shooting device, which can work for a long time.
The application provides a battery power supply circuit of shooting device includes:
a first battery pack;
a second battery pack;
a controller including a power source terminal;
the first input end of the discharging circuit is electrically connected with the output end of the first battery pack, the second input end of the discharging circuit is electrically connected with the output end of the second battery pack, the output end of the discharging circuit is electrically connected with the power end of the controller, when the temperature of the first battery pack is within the working temperature range, the first battery pack is communicated with the power end through the discharging circuit to supply power to the controller, and when the temperature of the first battery pack is outside the working temperature range, the second battery pack supplies power to the controller through the discharging circuit and the power end.
Optionally, the discharge circuit includes a first diode and a second diode, a positive electrode of the first diode is electrically connected to the output end of the first battery pack, and a negative electrode of the first diode is electrically connected to the power supply end of the controller; the anode of the second diode is electrically connected with the output end of the second battery pack, and the cathode of the second diode is electrically connected with the power supply end of the controller.
Optionally, the battery power supply circuit comprises a charging power supply, a first temperature sensor and a charging control circuit, the charging control circuit is electrically connected with the charging power supply, the first battery pack and the second battery pack, the first temperature sensor is arranged in the first battery pack, for sensing a temperature of the first battery pack and generating a corresponding first electrical signal, the controller including a first detection port, the first detection port is electrically connected with the first temperature sensor, the controller detects the first electric signal output by the first temperature sensor through the first detection port, the controller is electrically connected with the charging control circuit, and controls the charging control circuit to enable the charging power supply to supply power to the first battery pack and/or the second battery pack according to the first electric signal.
Optionally, the charging control circuit includes a first charging control circuit and a second charging control circuit, the first charging control circuit is electrically connected to the charging power source and the first battery pack, and the second charging control circuit is electrically connected to the charging power source and the second battery pack; the controller comprises a first control port and a second control port, the first control port is electrically connected with the first charging control circuit, and the second control port is electrically connected with the second charging control circuit;
if the first electric signal indicates that the temperature of the first battery pack is within the working temperature range, the controller controls the first charging control circuit through the first control port to enable the charging power supply to charge the first battery pack; and if the first electric signal indicates that the temperature of the first battery pack is out of the working temperature range, the controller controls the second charging control circuit through the second control port to enable the charging power supply to charge the second battery pack.
Optionally, the battery power supply circuit includes a first detection circuit, the first detection circuit is electrically connected to the output end of the first battery pack, the controller includes a second detection port, the second detection port is electrically connected to the first detection circuit, the controller detects a second electrical signal output by the first detection circuit through the second detection port to detect the voltage of the first battery pack, and the controller controls the first charging control circuit through the first control port according to the first electrical signal and the second electrical signal.
Optionally, the battery power supply circuit includes a second detection circuit, the second detection circuit is electrically connected to the output end of the second battery pack, the controller includes a third detection port, the third detection port is electrically connected to the second detection circuit, the controller detects a third electrical signal output by the second detection circuit through the third detection port to detect the voltage of the second battery pack, and the controller controls the second charging control circuit through the second control port according to the first electrical signal and the third electrical signal.
Optionally, the first temperature sensor comprises a thermistor; and/or
The charging power supply comprises a photovoltaic panel.
Optionally, the battery power supply circuit includes a second temperature sensor, and the second temperature sensor is disposed in the second battery pack and is configured to sense a temperature of the second battery pack and output a corresponding electrical signal.
Optionally, the first battery pack includes a ternary lithium battery, and the second battery pack includes a lithium titanate battery.
The application also provides a shooting device which comprises the battery power supply circuit.
The battery power supply circuit of the embodiment of the application comprises a first battery pack and a second battery pack, wherein a first input end of a discharge circuit is electrically connected with an output end of the first battery pack, a second input end of the discharge circuit is electrically connected with an output end of the second battery pack, an output end of the discharge circuit is electrically connected with a power supply end of a controller, when the temperature of the first battery pack is in the working temperature range, the first battery pack is communicated with a power supply end through a discharge circuit to supply power to the controller, when the temperature of the first battery pack is out of the working temperature range, the second battery pack supplies power to the controller through the discharge circuit and the power supply end, and by the arrangement, through the first battery pack and the second battery pack, the power supply is supplied to the controller of the shooting device at different environmental temperatures, so that the application scene of the shooting device can be enlarged, the shooting device can keep working for a long time, and the use of a user is facilitated.
Drawings
FIG. 1 is a schematic block circuit diagram of one embodiment of a battery powered circuit of the present application;
FIG. 2 is a circuit diagram illustrating one embodiment of a discharge circuit of the battery powered circuit of the present application;
FIG. 3 is a partial circuit diagram of one embodiment of the battery power circuit of the present application;
FIG. 4 is a circuit diagram illustrating one embodiment of a charge control circuit for a battery power circuit according to the present application;
FIG. 5 is a circuit diagram illustrating one embodiment of a first detection circuit of the battery powered circuit of the present application;
fig. 6 is a circuit diagram of an embodiment of a second detection circuit of the battery powered circuit of the present application.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. "plurality" or "a number" means at least two. Unless otherwise indicated, "front", "rear", "lower" and/or "upper" and the like are for convenience of description and are not limited to one position or one spatial orientation. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
The application provides an improved battery supply circuit and a shooting device, and the shooting device comprises the battery supply circuit.
The battery power supply circuit of the embodiment of the application comprises a first battery pack, a second battery pack, a controller and a discharging circuit. The controller comprises a power supply end; the first input end of the discharging circuit is electrically connected with the output end of the first battery pack, the second input end of the discharging circuit is electrically connected with the output end of the second battery pack, the output end of the discharging circuit is electrically connected with the power end of the controller, when the temperature of the first battery pack is within the working temperature range of the first battery pack, the first battery pack is communicated with the power end through the discharging circuit to supply power to the controller, and when the temperature of the first battery pack is outside the working temperature range, the second battery pack supplies power to the controller through the discharging circuit and the power end.
The battery power supply circuit of the embodiment of the application, be applied to the shooting device, including first group battery and second group battery, the output of first group battery is connected to discharge circuit's first input electricity, the output of second group battery is connected to discharge circuit's second input electricity, discharge circuit's output electricity connection controller's power end, when the temperature of first group battery is in its operating temperature scope, first group battery passes through discharge circuit and power end intercommunication, supply power for the controller, when the temperature of first group battery is outside operating temperature scope, the second group battery passes through discharge circuit and power end and supplies power for the controller. So set up, through first group battery and second group battery, supply power for the controller of shooting device under different ambient temperature, can enlarge the application scene of shooting device for the shooting device can keep long-time work, thereby convenience of customers uses.
Fig. 1 is a schematic block circuit diagram of an embodiment of a battery powered circuit 10 according to the present application. As shown in fig. 1, the battery power supply circuit 100 includes a first battery pack 10, a second battery pack 20, a controller 30, and a discharge circuit 40. The controller 30 includes a power source terminal 31; first input terminal 41 of discharge circuit 40 is electrically connected to output terminal 11 of first battery pack 10, second input terminal 42 of discharge circuit 40 is electrically connected to output terminal 21 of second battery pack 20, output terminal 43 of discharge circuit 40 is electrically connected to power terminal 31 of controller 30, when the temperature of first battery pack 10 is within its operating temperature range, first battery pack 10 is communicated with power terminal 31 through discharge circuit 40 to supply power to controller 30, and when the temperature of first battery pack 10 is outside its operating temperature range, second battery pack 20 is supplied power to controller 30 through discharge circuit 40 and power terminal 31.
In some embodiments, first battery pack 10 includes a ternary lithium battery that can be charged at an ambient temperature of 0-40 degrees and discharged at an ambient temperature of-10-55 degrees, depending on the battery properties of the ternary lithium battery. In some embodiments, second battery pack 20 includes a lithium titanate battery that can be charged and discharged when ambient temperature is between-40 degrees and 70 degrees, depending on the battery properties of the lithium titanate battery. In the present embodiment, the operating temperature of the first battery pack 10 (ternary lithium battery) refers to a discharge operating temperature, which is in the range of-10 degrees to 55 degrees. In some embodiments, the ternary lithium battery may be discharged normally when the ambient temperature is between-10 degrees and 55 degrees, to ensure that the controller 30 is normally powered when the ambient temperature is between-10 degrees and 55 degrees. In some embodiments, the second battery pack 20 may be normally discharged when the ambient temperature is outside of-10-55 degrees to ensure that the controller 30 is normally powered when the ambient temperature is outside of-10-55 degrees. Compared with a lithium titanate battery, the ternary lithium battery has smaller volume and lower cost, and the ternary lithium battery and the lithium titanate battery are distributed to supply power to the controller 30 at different time periods, so that the volume and the cost of the whole battery power supply circuit 100 can be effectively reduced. Compared with the prior art, through using ternary lithium cell and lithium titanate battery jointly, under the prerequisite of guaranteeing reduce cost and/or reduce volume, usable first group battery 10 discharges under normal ambient temperature, utilize second group battery 20 to discharge under the environment that rainy weather or temperature are lower, can normally supply power under different environment with assurance controller 30, can enlarge the application scene of shooting device, thereby make the work that the shooting device can be long-time, convenience of customers uses.
In the embodiment shown in fig. 1, the battery power supply circuit 100 includes a charging power supply 50, a first temperature sensor 60 and a charging control circuit 70, the charging control circuit 70 is electrically connected to the charging power supply 50 and the first battery pack 10 and the second battery pack 20, the first temperature sensor 60 is disposed in the first battery pack 10 and is configured to sense a temperature of the first battery pack 10 and generate a corresponding first electrical signal, the controller 30 includes a first detection port 32, the first detection port 32 is electrically connected to the first temperature sensor 60, the controller 30 detects the first electrical signal output by the first temperature sensor 60 through the first detection port 32, the controller 30 is electrically connected to the charging control circuit 70, and the controller 30 controls the charging control circuit 70 to enable the charging power supply 50 to supply power to the first battery pack 10 and/or the second battery pack 20 according to the first electrical signal. In some embodiments, the charging power source 50 includes a photovoltaic panel. Photovoltaic panels are power generation devices that produce direct current upon exposure to sunlight, and consist of thin solid photovoltaic cells made of semiconductor materials (silicon). The photovoltaic panel converts solar energy into electric energy to supply power to the first battery pack 10 and/or the second battery pack 20, so that the solar energy can be effectively utilized, the energy is saved, the environment is protected, and the cost is low. In some embodiments, first temperature sensor 60 comprises a thermistor disposed within first battery pack 10 for sensing a temperature of first battery pack 10 that is substantially equal to a temperature of an environment in which first battery pack 210 is disposed. For example, when the thermistor detects that the temperature of the first battery pack 10 is in the range of 0 to 40 degrees, the first electrical signal detected by the first detection port 32 may be 1.2V to 2.2V. When the first temperature sensor 60 (thermistor) detects that the temperature of the first battery pack 10 is at-10 to-55 degrees, the first battery pack 10 is communicated with the power source terminal 31 through the discharge circuit 40 to supply power to the controller 30, and when the first temperature sensor 60 (thermistor) detects that the temperature of the first battery pack 10 is outside-10 to-55 degrees, the second battery pack 20 supplies power to the controller 30 through the discharge circuit 40 and the power source terminal 31.
In some other embodiments, the battery power supply circuit 10 includes a second temperature sensor (not shown), which may be disposed in the second battery pack 20, for sensing the temperature of the second battery pack 20 and outputting a corresponding electrical signal. In some embodiments, the second temperature sensor may be a thermistor. In some embodiments, when a second temperature sensor (thermistor) detects that the temperature of the second battery pack 20 is at-40 degrees to 70 degrees, the second battery pack 20 communicates with the power terminal 31 through the discharge circuit 40 to supply power to the controller 30. In some embodiments, the temperature sensitive resistor may be a 25 degree resistor with a value of 3380 at 10K, B, which has a resistance that increases by 4% with temperature, i.e., every 1 ℃ increase in temperature. The thermistor belongs to small and high-precision chips and insulating polymer coatings of enameled copper wires, is coated with epoxy resin, and is provided with NTC (Negative Temperature Coefficient) interchangeable thermistor pieces with bare tin-plated enameled copper leads.
Fig. 2 is a circuit diagram illustrating an embodiment of a discharge circuit 40 of the battery power supply circuit 10 of the present application. As shown in fig. 1 and 2 in combination, discharge circuit 40 includes a first diode D1 and a second diode D2, the anode of first diode D1 being electrically connected to the output terminal of first battery D2, the cathode of first diode D1 being electrically connected to power supply terminal 31 of controller 30; the anode of the second diode D2 is electrically connected to the output terminal 21 of the second battery pack 20, and the cathode of the second diode D2 is electrically connected to the power supply terminal 31 of the controller 30. In some embodiments, the first battery pack 10 includes a plurality of ternary lithium batteries, which are connected in a 2-string 5-parallel connection manner to maintain a voltage of 5.6V to 8.4V. The second battery pack 20 includes a plurality of lithium titanate batteries connected in a 2-series 1-parallel connection manner to maintain a voltage of 3.6V to 4.8V. In some embodiments, the ternary lithium battery preferentially supplies power to the controller 30 when the ambient temperature is between-10 degrees and 55 degrees because the voltage of the ternary lithium battery is higher than that of the lithium titanate battery, so that the controller 30 can be normally used and the controller 30 can normally supply power to other components of the system when the ambient temperature is between-10 degrees and 55 degrees.
In practical application, when the power of the first battery pack 10 (ternary lithium battery) is discharged, the second battery pack 20 (lithium titanate battery) is switched to work. The following first low power protection scheme is initiated when the charge of the second battery pack 20 is discharged to 50%. For example, when the temperature of the first temperature sensor 60 is-10 to 55 degrees, only the controller 30 is operated at the beginning, and the controller 30 allows the other system-on-chip connected to the controller 30 to be started when it detects that the charge of the first battery pack 10 is greater than 20% through the second detection port 35. For example, when the electric quantity of the first battery pack 10 is greater than 20%, when the ultrasonic sensor detects that a car is in a parking space, the system on chip is allowed to start, if the system on chip has a heartbeat, the system on chip is proved to be normally working, the system on chip is started to capture a picture and is transmitted to the rear-end platform through 4G, and if the system on chip does not have the heartbeat, the system on chip is restarted. When the controller 30 detects that the electric quantity of the first battery pack 10 is lower than 10% through the second detection port 35, the system on chip, the 4G and other external modules are directly turned off, only the initial controller 30 and the NBIOT module (narrowband internet of things, the power consumption is within 10UA in the power saving state) are kept to work in the low power consumption module, real-time online alarm is given to the background, that is, the electric quantity of the first battery pack 10 is insufficient, and meanwhile, the background is allowed to do some operations for charging the first battery pack 10 on the machine, so that maintenance personnel can be reminded conveniently, and remedial measures can be made in time.
In other embodiments, when the ambient temperature is between-10 and 55 degrees, the ternary lithium battery does not discharge because the voltage of the ternary lithium battery is 0 between-10 and 55 degrees, and therefore the lithium titanate battery can be directly switched to work.
In practical applications, when the second battery pack 20 (lithium titanate battery) is in operation, the following second low-power protection scheme may be started at the same time. For example, when the temperature of the first temperature sensor 60 is-10 to 55 degrees, only the controller 30 is operated at the beginning, and the controller 30 allows the other system-on-chip connected to the controller 30 to be started when it detects that the charge of the second battery pack 20 is greater than 50% through the third detection port 36. For example, when the electric quantity of the second battery pack 20 is greater than 50%, when the ultrasonic sensor detects that a car is in a parking space, the system on chip is allowed to start, if the system on chip has a heartbeat, the system on chip is proved to be normally working, the system on chip is started to capture a picture and is transmitted to the rear-end platform through 4G, and if the system on chip does not have the heartbeat, the system on chip is restarted. When the controller 30 detects that the electric quantity of the second battery pack 20 is lower than 30% through the third detection port 36, the system on chip, the 4G and other external modules are directly turned off, only the initial controller 30 and the NBIOT module (narrowband internet of things, the power consumption is within 10UA in the power saving state) are kept to work in the low power consumption module, real-time online alarm is given to the background, that is, the electric quantity of the second battery pack 20 is insufficient, and meanwhile, the background is allowed to perform some operations for charging the second battery pack 20 on the machine, so that maintenance personnel can be reminded conveniently, and remedial measures can be made in time.
In some embodiments, the first diode D1 may be a schottky diode. In some embodiments, the second diode D2 may be a schottky diode. By using the unidirectional conductivity of the diode, when the first battery pack 10 is discharged, the corresponding voltage decreases as the amount of electricity decreases, and when the voltage corresponding to the amount of electricity of the first battery pack 10 is lower than the voltage corresponding to the amount of electricity of the second battery pack 20, the second battery pack 20 starts to be discharged. So set up, usable first group battery 10 discharges under normal environment or temperature to guarantee to give controller 30 normal power supply, utilize lithium titanate battery to discharge under the environment of overcast and rainy weather or temperature is lower, in order to guarantee that controller 30 normal power supply. And, because the lithium titanate battery's is great, the cost is higher, this embodiment is guaranteeing to use through combining with ternary lithium cell under the prerequisite of reduce cost and/or reduce volume, can guarantee to normally supply power for shooting device's controller 30 under different ambient temperature to make shooting device can long-time work, convenience of customers uses.
Fig. 3 is a partial circuit diagram of an embodiment of the battery power supply circuit 100 of the present application. As shown in fig. 3, the battery power supply circuit 100 further includes a first resistor R1, and the first resistor R1 and the first temperature sensor 60 (thermistor) are connected in series between the power terminal 31 of the controller 30 and the ground terminal. The first resistor R1 and the first temperature sensor 60 (thermistor) include a first voltage-dividing node Q1 therebetween, and the first detection port 32 is electrically connected to the first voltage-dividing node Q1 through a second resistor R2, wherein the second resistor R2 may be a current-limiting resistor.
Fig. 4 is a circuit diagram of one embodiment of a charge control circuit 70 of the battery power supply circuit 10 of the present application. As shown in fig. 1 and 4, the charging control circuit 70 includes a first charging control circuit 71 and a second charging control circuit 72, the first charging control circuit 71 electrically connects the charging power supply 50 and the first battery pack 10, and the second charging control circuit 72 electrically connects the charging power supply 50 and the second battery pack 20; the controller 30 includes a first control port 33 and a second control port 34, the first control port 33 is electrically connected to the first charging control circuit 71, and the second control port 34 is electrically connected to the second charging control circuit 72; if the first electrical signal indicates that the temperature of the first battery pack 10 is within the operating temperature range, the controller 30 controls the first charging control circuit 71 through the first control port 33 to enable the charging power supply 50 to charge the first battery pack 10; if the first electrical signal indicates that the temperature of the first battery pack 10 is outside the operating temperature range, the controller 30 controls the second charging control circuit 72 through the second control port 34 to enable the charging power supply 50 to charge the second battery pack 20. In some embodiments, the first charge control circuit 71 may be a first charge control chip. The input terminal IN1 of the first charging control chip is electrically connected to the charging power source 50 (photovoltaic panel), the enable terminal EN1 of the first charging control chip is electrically connected to the first control port 33, and the power supply terminal BATT1 of the first charging control chip is electrically connected to the input terminal 12 of the first battery pack 10 (as shown IN fig. 1). The temperature of the first battery pack 10 is detected by a first temperature sensor 60 (shown in fig. 1) disposed in the first battery pack 10, and the controller 30 detects a first electrical signal output from the first temperature sensor 60 through a first detection port 32, and enables to control a first charging control chip through a first control port 33 when the first electrical signal indicates that the temperature of the first battery pack 10 is within the operating temperature range (-10 degrees-55 degrees), thereby controlling the charging power source 50 (photovoltaic panel) to charge the first battery pack 10. In other embodiments, the second charge control circuit 72 may be a second charge control chip. The input terminal IN2 of the second charging control chip is electrically connected to the charging power source 50 (photovoltaic panel), the enable terminal EN2 of the second charging control chip is electrically connected to the second control port 34, and the power supply terminal BATT2 of the second charging control chip is electrically connected to the input terminal 22 of the second battery pack 20 (as shown IN fig. 1). The temperature of the first battery pack 10 is detected by the first temperature sensor 60 disposed in the first battery pack 10, the controller 30 detects a first electrical signal output by the first temperature sensor 60 (shown in fig. 1) through the first detection port 32, and when the first electrical signal indicates that the temperature of the first battery pack 10 is outside the operating temperature range (-10 degrees-55 degrees), the controller 30 enables to control the second charging control circuit 72 through the second control port 34, so as to control the charging power source 50 (photovoltaic panel) to charge the second battery pack 20. So set up, no matter be in continuous rainy weather or low temperature environment, charge first group battery 10 and second group battery 20 through charging power 50 replacement, guarantee first group battery 10 and second group battery 20 and can normally work, make things convenient for the maintainer to maintain.
Fig. 5 is a circuit diagram illustrating an embodiment of a first detection circuit 80 of the battery powered circuit 10 of the present application. Referring to fig. 1 and 5, the battery power supply circuit 10 includes a first detection circuit 80, the first detection circuit 80 is electrically connected to the output end 11 of the first battery pack 10, the controller 30 includes a second detection port 35, the second detection port 35 is electrically connected to the first detection circuit 80, the controller 30 detects a second electrical signal output by the first detection circuit 80 through the second detection port 35 to detect a voltage of the first battery pack 10, and the controller 30 controls the first charge control circuit 71 through the first control port 33 according to the first electrical signal and the second electrical signal. In the embodiment shown in fig. 5, the first detection circuit 80 includes a first voltage divider circuit 81, and the second detection port 35 is electrically connected to the first voltage divider circuit 81. The first voltage dividing circuit 81 includes a third resistor R3 and a fourth resistor R4, a second voltage dividing node Q2 is included between the third resistor R3 and the fourth resistor R4, and the second detection port 35 is electrically connected to the second voltage dividing node Q2 through a fifth resistor R5. In some embodiments, the voltage of the first battery pack 10 is maintained between 5.6V and 8.4V, and the voltage is maintained between 2.2V and 3.3V after voltage division. In the present embodiment, the controller 30 detects the second electrical signal output by the first voltage dividing circuit 81 through the second detection port 35, and enables and controls the first charging control chip through the first control port 33 when the second electrical signal indicates that the power of the first battery pack 10 is insufficient, so as to control the charging power source 50 (photovoltaic panel) to charge the first battery pack 10. Compared with the related art, the embodiment can detect the electric quantity of the first battery pack 10 through the first detection circuit 80, and timely charge the first battery pack 10 when the electric quantity of the first battery pack 10 is insufficient, so that the first battery pack 10 is kept with electricity, and maintenance is facilitated for maintenance personnel.
Fig. 6 is a circuit diagram illustrating an embodiment of a second detection circuit 90 of the battery powered circuit 10 of the present application. As shown in fig. 1 and fig. 6, the battery power supply circuit 10 includes a second detection circuit 90, the second detection circuit 90 is electrically connected to the output end 21 of the second battery pack 20, the controller 30 includes a third detection port 36, the third detection port 36 is electrically connected to the second detection circuit 90, the controller 30 detects a third electrical signal output by the second detection circuit 90 through the third detection port 36 to detect a voltage of the second battery pack 20, and the controller 30 controls the second charge control circuit 72 through the second control port 34 according to the first electrical signal and the third electrical signal. In the embodiment shown in fig. 6, the second detection circuit 90 includes a second voltage divider circuit 91, and the third detection port 36 is electrically connected to the second voltage divider circuit 91. The second voltage divider circuit 91 includes a sixth resistor R6 and a seventh resistor R7, a third voltage dividing node Q3 is included between the sixth resistor R6 and the seventh resistor R7, and the third detection port 36 is electrically connected to the third voltage dividing node Q3 through an eighth resistor R8. In some embodiments, the voltage of the second battery pack is maintained between 3.6V and 4.8V, and the voltage is maintained between 2.44V and 3.26V after voltage division. In the present embodiment, the controller 30 detects the third electrical signal output by the second voltage dividing circuit 91 through the third detection port 36, and enables and controls the second charging control chip through the second control port 34 when the third electrical signal indicates that the power of the second battery pack 20 is insufficient, so as to control the charging power source 50 (photovoltaic panel) to charge the second battery pack 20. Compared with the related art, the embodiment can detect the electric quantity of the second battery pack 10 through the second detection circuit 90, and timely charge the second battery pack 20 when the electric quantity of the second battery pack 20 is insufficient, so that the second battery pack 10 keeps the electric quantity, and maintenance by a maintenance worker is facilitated.
In practical applications, when the temperature of first battery pack 10 is detected by first temperature sensor 60 disposed in first battery pack 10, for example, in the range of 0-40 degrees (i.e., in the charging temperature range of first battery pack 10), the voltage value that controller 30 can detect through first detection port 32 may be 1.2V-2.2V. At this time, the second detection port 35 can detect and read the electric quantity of the first battery pack 10, and if the electric quantity of the first battery pack 10 is insufficient (i.e. the voltage value detected by the second detection port 35 is less than 2.8V), the controller 30 sets the enable terminal EN2 of the second charge control circuit 72 to be low through the second control port 34, and sets the enable terminal EN1 of the first charge control circuit 71 to be high through the first control port 33, and at this time, the charging power supply 50 charges the first battery pack 10 through the first charge control circuit 71. If the charge of the first battery pack 10 is full or exceeds 90% of the charge of the first battery pack 10 (i.e. the voltage is above 3.2V), the enable terminal EN1 of the first charge control circuit 71 is set low through the first control port 33, while the charge of the second battery pack 20 is detected and read through the second detection port 35, if the charge of the second battery pack 20 is insufficient (i.e. the voltage value detected by the third detection port 36 is less than 3V), the enable terminal EN2 of the second charge control circuit 72 is set high through the second control port 34, and at this time, the charging power supply 50 charges the second battery pack 20 through the second charge control circuit 72. In other embodiments, when the first temperature sensor 60 disposed on the first battery pack 10 detects the temperature of the first battery pack 10, for example, outside the range of 0-40 degrees (i.e., outside the charging temperature range of the first battery pack 10), the controller 30 sets the enable terminal EN2 of the second charging control circuit 72 to high through the second control port 34, and the charging power source 50 charges the second battery pack 20 through the second charging control circuit 72. When the second battery pack 20 is fully charged, the enable terminal EN2 of the second charge control circuit 72 is set low through the second control port 34, and the enable terminal EN1 of the first charge control circuit 71 is set high through the first control port 33, and at this time, the charging power source 50 charges the first battery pack 10 through the first charge control circuit 71. Compared with the related art, the charging power supply 50 of the embodiment can alternately charge the first battery pack 10 and the second battery pack 20, so that solar energy is effectively utilized, energy is saved, the environment is protected, and the cost is reduced.
The battery power supply circuit 100 of the above embodiment is used for a camera, and is disposed in the camera for supplying power to the camera. When the shooting device is used, a vehicle is detected through ultrasonic waves, the controller 30 starts a power supply of the system on chip, the system on chip starts shooting or picture grabbing, the picture is transmitted to a rear-end platform (computer) through 4G after the picture grabbing is finished, then the controller 30 controls the system on chip to be closed, and ultrasonic sensing triggering is controlled, or other actions are carried out when the rear-end platform (computer) sends an instruction through 4G.
Compared with the related art, the shooting device adopting the battery power supply circuit 100 of the embodiment adopts a power supply scheme of double battery packs (the first battery pack 10 and the second battery pack 20), when the first battery pack 10 is out of power or exceeds the working temperature range, the power supply is automatically switched to the second battery pack 20 for power supply, so that the equipment can keep working at 40 ℃ below zero to 70 ℃, the application scene of the shooting device is enlarged, the shooting device can work for a long time, and the shooting device can adapt to different environments and/or temperatures and is convenient for users to use. And, adopt battery power management, report to the police when the electric quantity of the first group battery 10 is less than 10%, limit work, or only allow the backstage to send the order can require actions such as the snap shot, etc., utilize the low-power consumption scheme of the internal battery, obtain the position of the present shooting device, the electric quantity of the first group battery 10 and/or second group battery 20 or regular working condition such as serial number of the shooting device in real time, carry on regular apparatus management, it is convenient for the maintainer to maintain.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.
Claims (10)
1. A battery-powered circuit for a camera, comprising:
a first battery pack;
a second battery pack;
a controller including a power source terminal;
the first input end of the discharging circuit is electrically connected with the output end of the first battery pack, the second input end of the discharging circuit is electrically connected with the output end of the second battery pack, the output end of the discharging circuit is electrically connected with the power end of the controller, when the temperature of the first battery pack is within the working temperature range, the first battery pack is communicated with the power end through the discharging circuit to supply power to the controller, and when the temperature of the first battery pack is outside the working temperature range, the second battery pack supplies power to the controller through the discharging circuit and the power end.
2. The battery-powered circuit of claim 1, wherein the discharge circuit comprises a first diode and a second diode, the anode of the first diode being electrically connected to the output terminal of the first battery pack, the cathode of the first diode being electrically connected to the power supply terminal of the controller; the anode of the second diode is electrically connected with the output end of the second battery pack, and the cathode of the second diode is electrically connected with the power supply end of the controller.
3. The battery power supply circuit of claim 1, wherein the battery power supply circuit comprises a charging power source, a first temperature sensor, and a charging control circuit, the charging control circuit is electrically connected with the charging power supply, the first battery pack and the second battery pack, the first temperature sensor is arranged in the first battery pack, for sensing a temperature of the first battery pack and generating a corresponding first electrical signal, the controller including a first detection port, the first detection port is electrically connected with the first temperature sensor, the controller detects the first electric signal output by the first temperature sensor through the first detection port, the controller is electrically connected with the charging control circuit, and controls the charging control circuit to enable the charging power supply to supply power to the first battery pack and/or the second battery pack according to the first electric signal.
4. The battery power supply circuit of claim 3, wherein the charge control circuit comprises a first charge control circuit and a second charge control circuit, the first charge control circuit electrically connecting the charging power source and the first battery pack, the second charge control circuit electrically connecting the charging power source and the second battery pack; the controller comprises a first control port and a second control port, the first control port is electrically connected with the first charging control circuit, and the second control port is electrically connected with the second charging control circuit;
if the first electric signal indicates that the temperature of the first battery pack is within the working temperature range, the controller controls the first charging control circuit through the first control port to enable the charging power supply to charge the first battery pack; and if the first electric signal indicates that the temperature of the first battery pack is out of the working temperature range, the controller controls the second charging control circuit through the second control port to enable the charging power supply to charge the second battery pack.
5. The battery power supply circuit according to claim 4, wherein the battery power supply circuit comprises a first detection circuit electrically connected to an output terminal of the first battery pack, the controller comprises a second detection port electrically connected to the first detection circuit, the controller detects a second electrical signal output by the first detection circuit through the second detection port to detect a voltage of the first battery pack, and the controller controls the first charge control circuit through the first control port according to the first electrical signal and the second electrical signal.
6. The battery power supply circuit according to claim 4, wherein the battery power supply circuit comprises a second detection circuit electrically connected to an output terminal of the second battery pack, the controller comprises a third detection port electrically connected to the second detection circuit, the controller detects a third electrical signal output by the second detection circuit through the third detection port to detect a voltage of the second battery pack, and the controller controls a second charge control circuit through the second control port according to the first electrical signal and the third electrical signal.
7. The battery powered circuit of claim 3, wherein the first temperature sensor comprises a thermistor; and/or
The charging power supply comprises a photovoltaic panel.
8. The battery power supply circuit of claim 1, wherein the battery power supply circuit comprises a second temperature sensor disposed within the second battery pack for sensing a temperature of the second battery pack and outputting a corresponding electrical signal.
9. The battery power supply circuit of claim 1, wherein the first battery pack comprises a ternary lithium battery and the second battery pack comprises a lithium titanate battery.
10. A camera, characterized in that it comprises a battery-powered circuit according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022978610.2U CN214045116U (en) | 2020-12-08 | 2020-12-08 | Battery power supply circuit and shooting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022978610.2U CN214045116U (en) | 2020-12-08 | 2020-12-08 | Battery power supply circuit and shooting device |
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|---|---|
| CN214045116U true CN214045116U (en) | 2021-08-24 |
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| CN202022978610.2U Active CN214045116U (en) | 2020-12-08 | 2020-12-08 | Battery power supply circuit and shooting device |
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| Country | Link |
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| CN (1) | CN214045116U (en) |
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2020
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