CN218243066U - Storage battery power supply system - Google Patents
Storage battery power supply system Download PDFInfo
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- CN218243066U CN218243066U CN202222384420.7U CN202222384420U CN218243066U CN 218243066 U CN218243066 U CN 218243066U CN 202222384420 U CN202222384420 U CN 202222384420U CN 218243066 U CN218243066 U CN 218243066U
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Abstract
The utility model discloses a storage battery power supply system, this system includes: the device comprises a storage battery, a charging circuit, a discharging circuit, an internal power supply circuit, a control circuit, a charging interface and a discharging interface; the charging interface is connected with the storage battery through a charging circuit; the discharging interface is connected with the storage battery through a discharging circuit; the internal power supply circuit comprises an input end, an output end and a first control end, wherein the input end of the internal power supply circuit is respectively connected with the storage battery and the charging interface, the first control end of the internal power supply circuit is connected with the discharging interface, and the internal power supply circuit is used for starting to convert a power supply accessed by the input end into an internal power supply and transmitting the internal power supply to the output end when the discharging interface is connected with the external control box for the first time; the control circuit is respectively connected with the output end of the internal power supply circuit, the charging circuit and the discharging circuit, and the control circuit is used for controlling the on-off of the charging circuit and/or the discharging circuit. The utility model discloses improve the reliability of battery functional system on the basis of reduction consumption.
Description
Technical Field
The embodiment of the utility model provides a relate to the energy storage power supply technique, especially relate to a battery power supply system.
Background
The medical bed is an indispensable position in hospitals as a necessary medical article for various scenes such as examination, treatment, rescue and the like. Medical beds on the market are mainly divided into manual medical beds and electric medical beds, wherein the electric medical beds gradually become mainstream due to convenient operation and comfortable experience.
The electric medical bed in the prior art mostly adopts a stable mains supply function, and the electric medical bed in a special department is provided with an energy storage and power supply device so as to prevent emergency situations such as power failure and the like.
However, the energy storage and power supply device connected to the existing medical bed has more power consumption in the delivery process, so that the power supply reliability of the energy storage and power supply device is low.
SUMMERY OF THE UTILITY MODEL
The utility model provides a storage battery power supply system to improve the reliability of battery functional system on the basis that reduces the consumption.
The embodiment of the utility model provides a storage battery power supply system, storage battery power supply system includes: the device comprises a storage battery, a charging circuit, a discharging circuit, an internal power supply circuit, a control circuit, a charging interface and a discharging interface;
the charging interface is connected with the storage battery through the charging circuit and is used for being connected with an external power supply;
the discharging interface is connected with the storage battery through the discharging circuit and is used for outputting power to an external control box;
the internal power supply circuit comprises an input end, an output end and a first control end, the input end of the internal power supply circuit is respectively connected with the storage battery and the charging interface, the first control end of the internal power supply circuit is connected with the discharging interface, and the internal power supply circuit is used for starting to convert a power supply accessed by the input end into an internal power supply and transmitting the internal power supply to the output end when the discharging interface is connected with the external control box for the first time;
the control circuit is respectively connected with the output end of the internal power supply circuit, the charging circuit and the discharging circuit, and is used for controlling the on-off of the charging circuit and/or the discharging circuit.
Optionally, the internal power supply circuit further includes a first capacitor, a first switch tube, a second switch tube, and a voltage stabilization chip, where two ends of the first switch tube are respectively connected to the input end of the internal power supply circuit and the input end of the voltage stabilization chip, and an output end of the voltage stabilization chip is used as an output end of the internal power supply circuit; the two ends of the second switch tube are respectively connected with a grounding end and the control end of the first switch tube, and the control end of the second switch tube is connected with the discharge interface through the first capacitor.
Optionally, the internal power supply circuit further comprises: the two ends of the third switch tube are respectively connected with the control end and the grounding end of the first switch tube, the control end of the third switch tube is connected with the third control end, the third control end is connected with the charging interface, and the third switch tube is used for controlling the on-off of the first switch tube according to whether the charging interface is connected with the external power supply or not.
Optionally, the control circuit is connected to the charging interface and is further configured to generate a low power consumption signal according to a voltage signal accessed by the charging interface;
the internal power supply circuit further includes: the two ends of the fourth switch tube are respectively connected with the control end and the grounding end of the first switch tube, the control end of the fourth switch tube is connected with the fourth control end, the fourth control end is connected with the control circuit, and the fourth switch tube is used for switching on and off of the first switch tube according to whether the fourth control end is connected with the low-power-consumption signal or not under the condition that the third switch tube is disconnected.
Optionally, the battery power supply system further comprises: a charging voltage sampling circuit;
the charging voltage sampling circuit comprises an input end, an output end and a second control end, the input end of the charging voltage sampling circuit is connected with the charging interface, the output end and the second control end of the charging voltage sampling circuit are respectively connected with the control circuit, and the charging voltage sampling circuit is used for collecting the charging voltage of the external power supply and transmitting the charging voltage to the control circuit;
the control circuit is further used for generating a first control signal and a second control signal according to the charging voltage; the charging voltage sampling circuit is also used for controlling the connection and disconnection between the input end of the charging voltage sampling circuit and the grounding end according to the first control signal;
the charging circuit is used for controlling the on-off of the storage battery and the charging interface according to the second control signal.
Optionally, the battery power supply system further includes: a discharge voltage sampling circuit;
the discharge voltage sampling circuit comprises an input end and an output end, the input end of the discharge voltage sampling circuit is connected with the discharge interface, the output end of the discharge voltage sampling circuit is connected with the control circuit, and the discharge voltage sampling circuit is used for collecting discharge voltage of an external output power supply of the discharge interface and transmitting the discharge voltage to the control circuit;
the control circuit is further used for generating a third control signal according to the discharge voltage, and the discharge circuit is further used for controlling the on-off between the storage battery and the discharge interface according to the third control signal.
Optionally, the battery power supply system further includes: a charging current sampling circuit and/or a discharging current sampling circuit;
the charging current sampling circuit is respectively connected with the charging circuit and the control circuit and is used for collecting the charging current flowing through the charging circuit;
the discharging current sampling circuit is respectively connected with the discharging circuit and the control circuit and is used for collecting discharging current flowing through the discharging circuit.
Optionally, the battery power supply system further comprises: a communication circuit and a communication interface;
the communication interface is used for being in communication connection with the external control box;
the communication circuit comprises a communication switch tube, a first resistor, a second resistor, a third resistor, a first communication end and a second communication end, wherein the first end of the communication switch tube is connected with the communication interface, the second end of the communication switch tube is grounded, the first resistor is connected between the first communication end and the first end of the communication switch tube, the second resistor is connected between the second communication end and the control end of the communication switch tube, and the third resistor is connected between the second end of the communication switch tube and the control end;
the control circuit is respectively connected with the first communication terminal and the second communication terminal, and is configured to generate a communication signal according to a battery parameter and output the communication signal to the first communication terminal and the second communication terminal, where the battery parameter includes at least one of the charging voltage, the charging current, the discharging voltage, and the discharging current.
Optionally, the control circuit is further configured to generate a state alert signal according to the battery parameter;
the battery power supply system further includes: and the buzzing circuit is connected with the control circuit and is used for sending out an acoustic prompt signal according to the state prompt signal.
Optionally, the charging circuit includes a fusing device and a sixth switching tube, the fusing device and the sixth switching tube are connected in series between the battery and the charging interface, and a control end of the sixth switching tube is connected to the control circuit.
The embodiment of the utility model provides a storage battery power supply system is provided with battery, charging circuit, discharge circuit, inside power supply circuit, control circuit, the interface and the interface that discharges charge. The charging interface is connected with the storage battery through the charging circuit and can be connected with an external power supply. The discharging interface is connected with the storage battery through the discharging circuit and can output power to the external control box. The input end of the internal power supply circuit is connected with the storage battery and the charging interface respectively, and the first control end of the internal power supply circuit is connected with the discharging interface. The control circuit is respectively connected with the output end of the internal power supply circuit, the charging circuit and the discharging circuit and can control the on-off of the charging circuit and/or the discharging circuit. The internal power supply circuit stops working before being activated, the zero power consumption state of the storage battery power supply system is realized, the storage battery power supply system is activated when being connected with an external control box for the first time, internal power supply is started, normal power supply requirements are met, the storage battery power supply system keeps the zero power consumption state in an outgoing transportation stage, residual electric quantity when a user uses the storage battery power supply system for the first time can be guaranteed, the use of a line in a transportation process can be reduced, and the reliability of the storage battery function system is improved on the basis of reducing power consumption.
Drawings
Fig. 1 is a schematic circuit diagram of a battery power supply system according to an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of an internal power supply circuit according to an embodiment of the present invention;
fig. 3 is a schematic circuit diagram of another internal power supply circuit according to an embodiment of the present invention;
fig. 4 is a schematic circuit diagram of another internal power supply circuit provided in the embodiment of the present invention;
fig. 5 is a schematic circuit diagram of another battery power supply system according to an embodiment of the present invention;
fig. 6 is a schematic circuit diagram of a charging voltage sampling circuit according to an embodiment of the present invention;
fig. 7 is a schematic circuit diagram of another battery power supply system provided by the embodiment of the present invention;
fig. 8 is a schematic circuit diagram of a discharge voltage sampling circuit according to an embodiment of the present invention;
fig. 9 is a schematic circuit diagram of a charging circuit and a charging current sampling circuit according to an embodiment of the present invention;
fig. 10 is a schematic circuit diagram of a discharge circuit and a discharge current sampling circuit according to an embodiment of the present invention;
fig. 11 is a schematic diagram of a communication circuit and a communication interface according to an embodiment of the present invention;
fig. 12 is a schematic circuit diagram of a communication circuit and a communication interface according to an embodiment of the present invention;
fig. 13 is a schematic circuit diagram of a buzzer circuit provided in the embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In order to solve the problem that provides in the background art, the embodiment of the utility model provides a storage battery power supply system, this power supply system can be for the power supply of electronic medical bed. Fig. 1 is a schematic circuit diagram of a battery power supply system according to an embodiment of the present invention, referring to fig. 1, the battery power supply system 100 includes: a battery 101, a charging circuit 102, a discharging circuit 103, an internal power supply circuit 104, a control circuit 105, a charging interface 106, and a discharging interface 107. The charging interface 106 is connected to the battery 101 via the charging circuit 102, and the charging interface 106 is used for accessing an external power supply. The discharge interface 107 is connected to the battery 101 via the discharge circuit 103, and the discharge interface 107 is used for outputting power to an external control box. The internal power supply circuit 104 comprises an input end a, an output end b and a first control end c, the input end a of the internal power supply circuit 104 is respectively connected with the storage battery 101 and the charging interface 106, the first control end c of the internal power supply circuit 104 is connected with the discharging interface 107, and the internal power supply circuit 104 is used for converting a power supply accessed by the input end into an internal power supply and transmitting the internal power supply to the output end when the discharging interface 107 is connected with the external control box for the first time. The control circuit 105 is respectively connected with the output end b of the internal power supply circuit 104, the charging circuit 102 and the discharging circuit 103, and the control circuit 105 is used for controlling the on-off of the charging circuit 102 and/or the discharging circuit 103.
The charging interface 106 is an interface for connecting an external power supply device and accessing an external power supply, and the discharging interface 107 is an interface for connecting an external control box and supplying power to the external control box. The storage battery 101 is a battery for storing and providing power in the storage battery power supply system 100, and can provide the external control box and the internal power supply circuit 104 with reserve power without accessing an external power source to the charging interface 106. The charging circuit 102 is a switch control circuit 105 that controls the on/off of a charging line between the charging interface 106 and the battery 101, and the on/off of the charging circuit 102 is controlled by the switch control circuit 105. The discharge circuit 103 is a switch control circuit 105 that controls the on/off of a discharge line between the battery 101 and the discharge interface 107, and the on/off of the discharge circuit 103 is controlled by the control circuit 105. The internal power supply circuit 104 is a circuit for supplying power to an element such as the control circuit 105 in the battery power supply system 100 that requires low-voltage power supply, and is capable of converting the power supplied from the battery 101 or an external power supply into low-voltage power supply and supplying the low-voltage power supply to the element such as the control circuit 105 that requires low-voltage power supply. The control circuit 105 is an overall control device of the functional system of the storage battery 101, and can control the on/off of the charging circuit 102 and the discharging circuit 103.
Specifically, the first control terminal c of the internal power supply circuit 104 is connected to the discharge interface 107, and can detect whether the discharge interface 107 is connected to the external control box. Before the battery power supply system is not assembled, the internal power supply circuit 104 is not connected to the external control box, so that the internal power supply is not output, and at this time, the control circuit 105 is not connected to the power supply, and the battery power supply system 100 is in a zero power consumption state. During assembly, the external control box is accessed for the discharge interface 107 for the first time. After detecting that the external control box is connected to the discharging interface 107 for the first time, the internal power supply circuit 104 generates an internal power supply according to the power supply connected to the input terminal a and continuously supplies the internal power supply to the output terminal b to supply power to internal circuits such as the control circuit 105. The control circuit 105 can control the on/off of the discharge circuit 103 and the charge circuit 102 after the internal power supply is connected. The control circuit 105 may also be connected to the charging interface 106, and when the external power supply is not connected to the charging interface 106, the control circuit 105 may control the discharging circuit 103 and the charging circuit 102 to operate normally, and other auxiliary functions (for example, a charging current collecting function and a communication function) are all turned off, at this time, there are fewer power consuming elements in the storage battery power supply system 100, and the storage battery power supply system 100 is in a low power consumption state. Once the control circuit 105 detects that the charging interface 106 is connected to the external power supply, the control circuit 105 starts all functions, and at this time, the energy storage and power supply system 100 is in a normal power consumption state.
For example, first, during the production process, the battery 101 in the battery power supply system 100 stores a certain initial charge, for example, the initial charge may be 80% of the full charge of the battery 101. Before assembly, the battery power supply system 100 is not connected to an external control box, the internal power supply circuit 104 is not activated at this time, the electric quantity of the battery 101 is not consumed, and the functional system of the battery 101 is in a zero power consumption state at this time. In the zero power consumption state, the storage battery 101 supplies power to neither the external control box nor the internal circuit such as the control circuit 105, and the electric quantity of the storage battery 101 can be reserved to the maximum extent before assembly and use. Next, during the first time the battery power supply system 100 is put into operation, the discharge interface 107 of the battery power supply system 100 is first connected to the external control box. The first control end c of the internal power supply circuit 104 is connected to the discharging interface 107, when the discharging interface 107 is first connected to the external control box, the internal power supply circuit 104 starts to output the internal power supply to supply power to the control circuit 105, and when the external control box is first connected and the external power supply is not connected, the control circuit 105 keeps the discharging circuit 103 and the charging circuit 102 working normally, and turns off other auxiliary functions (for example, the charging current collecting function and the communication function), and at this time, the power consumption elements in the storage battery power supply system 100 are few, and the storage battery power supply system 100 is in a low power consumption state. For example, the internal power supply circuit 104 may include a capacitor, a switching tube connected between an input terminal a of the internal power supply circuit 104 and an input terminal of a regulator chip, and an output terminal of the regulator chip serving as an output terminal b of the internal power supply circuit 104. The capacitor is connected between the first control end and the control end of the switch tube, and can release the stored electric energy when the discharge interface 107 is connected to the external control box for the first time, and an oscillating electric signal is generated at the control end of the switch tube to control the switch tube to be conducted for a short time, so that the output end b of the internal power supply circuit 104 outputs an internal power supply source, and the control circuit 105 is powered on to start working. The control circuit 105 can control the on-off of the charging circuit 102 and the discharging circuit 103 according to the state and the input/output parameters of the storage battery 101, and in addition, the control circuit 105 can be connected with the internal power supply circuit 104, and can control the conduction of a switching tube of the internal power supply circuit 104 after the oscillating electric signal generated by the capacitor tends to be stable, so as to realize continuous power supply. Finally, if the charging interface 106 is connected to an external power supply, the internal power supply circuit 104 can be turned on according to the external power supply, and the external power supply is used to supply power to internal components such as the control circuit 105, and the control circuit 105 also turns on all functions after detecting that the external power supply is connected, and the energy storage and power supply system 100 is in a normal power consumption state at this time. It should be noted that the energy storage and power supply system 100 can also enter the low power consumption state again according to the key signal input by the user.
The storage battery power supply system provided by the embodiment is provided with a storage battery, a charging circuit, a discharging circuit, an internal power supply circuit, a control circuit, a charging interface and a discharging interface. The charging interface is connected with the storage battery through the charging circuit and can be connected with an external power supply. The discharging interface is connected with the storage battery through the discharging circuit and can output power to the external control box. The input end of the internal power supply circuit is connected with the storage battery and the charging interface respectively, and the first control end of the internal power supply circuit is connected with the discharging interface. The control circuit is respectively connected with the output end of the internal power supply circuit, the charging circuit and the discharging circuit and can control the on-off of the charging circuit and/or the discharging circuit. The internal power supply circuit does not work before being activated, the zero power consumption state of the storage battery power supply system is realized, the storage battery power supply system is activated when being connected with the external control box for the first time, the internal power supply is started, the normal power supply requirement is met, the storage battery power supply system keeps the zero power consumption state before leaving the factory, the residual electric quantity of a user during the first use can be guaranteed, the use of a line in the transportation process can be reduced, and the reliability of the storage battery function system is improved on the basis of reducing the power consumption.
Optionally, fig. 2 is a schematic circuit diagram of an internal power supply circuit provided in an embodiment of the present invention, on the basis of the foregoing embodiment, with reference to fig. 1 and fig. 2, the internal power supply circuit 104 further includes a first capacitor C1, a first switch tube T1, a second switch tube T2 and a voltage stabilizing chip 201, two ends of the first switch tube T1 are respectively connected to the input end a of the internal power supply circuit 104 and the input end of the voltage stabilizing chip 201, and the output end of the voltage stabilizing chip 201 serves as the output end b of the internal power supply circuit 104; two ends of the second switch tube T2 are connected to the ground GND and the control end of the first switch tube T1, respectively, and the control end of the second switch tube T2 is connected to the discharge interface 107 through the first capacitor C1. One end of the first capacitor C1 connected to the discharge interface 107 serves as a first control end C of the internal power supply circuit 104.
The voltage regulation chip 201 is a voltage regulator chip that can generate an internal power supply according to a battery power supply and/or an external power supply, and can provide a low-voltage power supply signal synchronized with the battery power supply and/or the external power supply to the output terminal b of the internal power supply circuit 104.
Specifically, the voltage regulation chip 201 can perform voltage reduction processing on a battery power supply or an external power supply, generate an internal power supply, and output the internal power supply with stable voltage and synchronous with the battery power supply or the external power supply, and illustratively, the voltage regulation chip 201 may be a voltage regulation chip of a model MP1463GD-C724, and the voltage level of the internal power supply may be 3.3V, which may supply power to an internal circuit or a chip. The first switch tube T1 and the second switch tube T2 may both be transistors, the first switch tube T1 is connected between the input end a of the internal power supply circuit 104 and the input end of the voltage stabilization chip 201, and the control end of the first switch tube T1 is connected with one end of the second switch tube T2, so that the first switch tube T1 may be turned on or off according to the on-off state of the second switch tube T2, so as to supply power or cut off the voltage stabilization chip 201. The control end of the second switch tube T2 is connected to the first capacitor C1, and the second switch tube T2 can be turned on or off according to the state of the first capacitor C1. Illustratively, the first switching tube T1 may be a MOS tube, and the second switching tube T2 may be a triode. A fourth resistor R4 is further arranged between the first capacitor C1 and the control end of the second switch tube T2, and the fourth resistor R4 can play a role in consuming electric energy. The first capacitor C1 stores electric energy when leaving a factory, and can generate an oscillating electric signal when the discharging interface is firstly connected to the external control box. The oscillating electrical signal can make the second switch tube T2 conduct, and then conduct the first switch tube T1, so that the voltage stabilization chip 201 can output an internal power supply to supply power for internal circuits such as a control circuit. It should be noted that the control end of the first switch tube T1 may also be connected to the control circuit 105, and after the oscillating electrical signal generated by the first capacitor C1 tends to be stable (the internal power supply circuit 104 is activated), the second switch tube T2 may be kept turned off, and at this time, the first switch tube T1 may be kept turned on according to the control signal of the control circuit 105, so as to implement continuous and stable internal power supply.
The internal power supply circuit of the storage battery power supply system provided by the embodiment comprises a first capacitor, a first switch tube, a second switch tube and a voltage stabilizing chip, wherein the input end of the voltage stabilizing chip is connected with the input end of the internal power supply circuit through the first switch tube, the voltage reducing processing can be carried out on a storage battery power supply and/or an external power supply, the internal power supply is generated, electric energy is provided for internal circuits such as a control circuit, the first capacitor can generate an oscillating electric signal to open the second switch tube and the first switch tube when being connected into an external control box for the first time, the storage battery power supply system is converted into a low power consumption state from a zero power consumption state, the voltage stabilizing chip outputs the internal power supply for the first time to supply power for the control circuit, the power supply circuit can continuously control the conduction of the first switch tube after the oscillating electric signal is stable, the activation and the maintenance of the internal power supply function of the storage battery power supply system are realized, the voltage stabilizing chip can provide a stable internal power supply, and the stability of the storage battery power supply system can be improved.
Optionally, fig. 3 is a schematic circuit diagram of another internal power supply circuit provided in an embodiment of the present invention, and based on the foregoing embodiment, with reference to fig. 1 and fig. 3, the internal power supply circuit 104 further includes: the three-phase charging circuit comprises a third control end i and a third switch tube T3, two ends of the third switch tube T3 are respectively connected with the control end of the first switch tube T1 and a ground end GND, the control end of the third switch tube T3 is connected with the third control end i, the third control end i is connected with the charging interface 106, and the third switch tube T3 is used for controlling the on-off of the first switch tube T1 according to whether the charging interface 106 is connected with an external power supply or not.
Specifically, the third control terminal i is a port for detecting whether the charging interface 106 is connected to an external power supply, and the third control terminal i is connected to the charging interface 106. The third switching tube T3 may be a transistor, the control end of the third switching tube T3 is connected to the third control end i, and the third switching tube T3 can be turned on or off according to whether the charging interface 106 is connected to an external power supply or not after the oscillating electrical signal tends to be stable (at this time, the second switching tube T2 is kept turned off), so as to control the on/off of the first switching tube T1. For example, in the case that the charging interface 106 is connected to the external power source, the third switch tube T3 can be turned on to keep the first switch tube T1 turned on, and at this time, the voltage stabilizing chip 201 performs a voltage reduction operation on the external power source to generate an internal power supply source for supplying power to the internal circuit such as the control circuit 105. After the charging interface is connected to the external power source for the first time for 3 hours, the control circuit 105 can control all the auxiliary functions to be turned on, such as controlling the current collection function and the communication function to be turned on, and then, the storage battery power supply system 100 is changed from the low power consumption state to the normal power consumption state. After the external power supply is connected for the first time, if the charging interface 106 is restored to the condition of not being connected with the external power supply again, the third switch tube T3 can be kept off, at this time, the control circuit 105 can detect that the charging interface 106 is not connected with the external power supply, all parts in the storage battery power supply system are switched to the low power consumption mode according to the externally input key signal, and simultaneously, the low power consumption signal is output to keep the first switch tube T1 connected, at this time, the voltage stabilizing chip 201 performs voltage reduction operation on the storage battery power supply to generate an internal power supply source, and power is supplied to internal circuits such as the control circuit.
Optionally, on the basis of the foregoing embodiment, with reference to fig. 1 and fig. 3, the control circuit 105 is connected to the charging interface 106 and is further configured to generate a low power consumption signal according to a voltage signal accessed by the charging interface 106. The internal power supply circuit 104 further includes: the two ends of the fourth switching tube T4 are respectively connected with the control end of the first switching tube T1 and the ground end GND, the control end of the fourth switching tube T4 is connected with the fourth control end j, the fourth control end j is connected with the control circuit, and the fourth switching tube T4 is used for controlling the on-off of the first switching tube T1 according to whether the fourth control end j is connected with a low-power-consumption signal or not under the condition that the third switching tube T3 is disconnected.
Specifically, the control circuit 105 is connected to the charging interface 106, and can generate a low-power-consumption signal when the charging interface 106 does not access an external power supply, and the low-power-consumption signal can close various detection circuits connected to the control circuit, and can control the internal power supply circuit 104 to continuously output the internal power supply. The fourth control terminal j is a control port for accessing the low power consumption signal, where the internal power supply circuit 104 is connected to the control circuit 105. Fourth switch tube T4 can be the triode, can keep conducting state according to the low-power consumption signal to switch on first switch tube T1, realize that voltage regulation chip 201 also continuously outputs inside power supply under the low-power consumption state.
Exemplarily, fig. 4 is a schematic circuit diagram of another internal power supply circuit provided by an embodiment of the present invention, and with reference to fig. 4, the first switch tube T1 may be a P-type MOS tube, the second switch tube T2, the third switch tube T3 and the fourth switch tube T4 are NPN-type triodes, and the first capacitor C1 is an energy storage capacitor. The voltage stabilizing chip 201 is a voltage stabilizer chip with the model number of MP1463, and an output end of the voltage stabilizing chip is used as an output end b of the internal power supply circuit and can output an internal power supply. During the production of the battery power supply system, the first capacitor C1 is charged with suitable electrical energy. In the process of assembling the storage battery function system, the charging interface 106 is not connected with any external power supply, the discharging interface 107 is not connected with an external control box, at this time, the first switch tube T1, the second switch tube T2, the third switch tube T3 and the fourth switch tube T4 are all kept disconnected, the internal power supply circuit does not consume the electric quantity of the storage battery, no external control box consumes the electric quantity of the storage battery, and the storage battery power supply system is in a zero-power state at this time.
When the storage battery power supply system is assembled, a user can access an external control box for a discharge interface 107 of the storage battery power supply system, wherein the external control box is a control device connected between the storage battery power supply system and the electric medical bed, the electric medical bed can be powered by a power supply output by the storage battery power supply system, the state of the electric medical bed is controlled, and the storage battery power supply system in the state is in a low power consumption state. When the discharging interface 107 is connected to the external control box for the first time, the first capacitor C1 can generate an oscillating electric signal, so that the second switch tube T2 is switched on briefly, and the first switch tube T1 can be switched on in the process of switching on the second switch tube T2, so that the internal power supply circuit is activated and the internal power supply is output.
After the internal power supply circuit is activated, the oscillating electric signal generated by the first capacitor C1 also tends to be stable, so that the second switch tube T2 is turned off, and at this time, if the charging interface 106 has access to the external power supply, the third switch tube T3 can be turned on according to the electric signal of the external power supply, so that the first switch tube T1 is kept on, and the internal power supply continuously generates the internal power supply according to the external power supply. The external control box connected to the discharging interface 107 is also directly powered by the external power supply connected to the charging interface 106, the storage battery power supply system is in a normal power supply state at this time, and all the functional units in the control circuit 105 are in an operating state.
After the internal power supply circuit is activated, if the charging interface 106 is not connected with an external power supply, the third switch tube T3 is correspondingly turned off, at this time, the control circuit 105 can turn off unnecessary functions such as detection, alarm and communication according to a key signal input by a user, only the function of controlling the on-off of the charging circuit and the discharging circuit is kept, and meanwhile, a low-power-consumption signal is generated, and the storage battery power supply system in the state is in a low-power-consumption state. The fourth switching tube T4 can be kept on according to the low power consumption signal, so that the first switching tube T1 is kept on, and the internal power supply circuit can still maintain internal power supply by using the power supply of the storage battery 101 in a low power consumption state.
The battery power supply system that this embodiment provided is provided with inside power supply circuit, inside power supply circuit is provided with first electric capacity, first switch tube, the second switch tube, the third switch tube, fourth switch tube and steady voltage chip, first switch tube sets up between the input of inside power supply circuit and the input of steady voltage chip, can control the power supply of inside power supply circuit and open and stop, the activation of inside power supply circuit can be realized when first access external control box to second switch tube and first electric capacity. The control end of the third switch tube is connected with the charging interface, so that the continuous power supply of the internal power supply circuit can be maintained under the condition that the charging interface is connected with an external power supply. The control end of the fourth switch tube is connected with the control circuit, the control circuit can close unnecessary functions and generate low-power-consumption signals under the condition that the charging interface does not access an external power supply, the fourth switch tube can keep the first switch tube conducted according to the low-power-consumption signals, so that the internal power supply circuit can still continuously output the internal power supply under the low-power-consumption state, the multi-state conversion of the storage battery power supply system and the maintenance of the internal power supply under the multi-state are realized, the protection of the circuit and the battery under the condition of factory transportation can be ensured, the diversification of system functions under the condition of charging can also be ensured, the power consumption of the storage battery under the non-charging condition can also be reduced, and the reliability of the storage battery is further improved.
Optionally, fig. 5 is a schematic circuit diagram of another battery power supply system provided by the embodiment of the present invention, and on the basis of the foregoing embodiment, with reference to fig. 5, the battery power supply system 100 further includes a charging voltage sampling circuit 501. The charging voltage sampling circuit 501 comprises an input end f, an output end d and a second control end e, the input end f of the charging voltage sampling circuit 501 is connected with the charging interface 106, the output end d and the second control end e of the charging voltage sampling circuit 501 are respectively connected with the control circuit 105, and the charging voltage sampling circuit 501 is used for collecting the charging voltage of an external power supply and transmitting the charging voltage to the control circuit 105. The control circuit 105 is further configured to generate a first control signal and a second control signal according to the charging voltage. The charging voltage sampling circuit 501 is further configured to control the connection/disconnection between the input terminal f of the charging voltage sampling circuit 501 and the ground terminal according to the first control signal. The charging circuit 102 is configured to control connection and disconnection between the storage battery 101 and the charging interface 106 according to the second control signal.
The charging voltage sampling circuit 501 is a circuit for acquiring voltage of an external power supply, and can acquire a voltage signal of the external power supply connected to the charging interface 106.
Specifically, the input terminal f of the charging voltage sampling circuit 501 is connected to the charging interface 106, and can be connected to a voltage signal of an external power supply. The output terminal d of the charging voltage sampling circuit 501 is connected to the control circuit 105, and can transmit the collected charging voltage of the external power supply to the control circuit 105. The second control terminal e of the charging voltage sampling circuit 501 is also connected to the control circuit 105, the control circuit 105 can generate a first control signal according to the charging voltage, the first control signal can control the start and stop of the sampling function of the charging voltage sampling circuit 501 through the second control terminal e, and for example, the control circuit 105 can generate the first control signal to control the turn-off of the sampling function of the charging voltage sampling circuit 501 when detecting that the charging voltage exceeds the normal range. The control circuit 105 may further generate a second control signal according to the collected charging voltage, where the second control signal may control the on/off of the charging circuit 102, for example, the control circuit 105 may generate a first control signal and a second control signal when detecting that the charging voltage exceeds a normal range, where the first control signal may control the switching off of the sampling function of the charging voltage sampling circuit 501, and the second control signal may control the switching off of the charging circuit 102, so as to prevent an unstable external power source from impacting an internal circuit, and further improve the reliability of the battery power supply system 100.
Exemplarily, fig. 6 is a schematic circuit diagram of a charging voltage sampling circuit provided by an embodiment of the present invention, and in combination with fig. 6, the charging voltage sampling circuit may include a first operational amplifier 601 and a fifth switch tube T5, a non-inverting input terminal of the first operational amplifier 601 is connected to an input terminal of the charging voltage sampling circuit, and the non-inverting input terminal of the first operational amplifier 601 may be connected to an external power voltage connected to the charging interface 106. The output end of the first operational amplifier 601 is connected to the output end of the charging voltage sampling circuit, and the first operational amplifier 601 can perform an operation on the voltage input by the positive input end to generate a charging voltage output, which is uploaded to the control circuit 105 through the output end of the charging voltage sampling circuit. The fifth switch tube T5 is connected between the non-inverting input end of the first operational amplifier 601 and the ground end GND, the control end of the fifth switch tube T5 is connected to the control circuit 105, the fifth switch tube T5 can be turned on and off according to a first control signal of the control circuit 105, functional start and stop of the charging voltage sampling circuit are achieved, safety of the charging voltage sampling circuit is guaranteed under the condition that the charging interface 106 is abnormally connected to an external power supply, and reliability of the storage battery power supply system is further improved. In addition, in the low power consumption state, the control circuit 105 may also turn off a channel receiving the charging voltage signal or generate the first control signal to turn off the charging voltage sampling function, thereby further reducing power consumption.
Optionally, fig. 7 is a schematic circuit diagram of another battery power supply system provided in the embodiment of the present invention, and on the basis of the foregoing embodiment, with reference to fig. 7, the battery power supply system 100 further includes: the discharge voltage sampling circuit 601. The discharge voltage sampling circuit 601 comprises an input end h and an output end g, the input end h of the discharge voltage sampling circuit 601 is connected with the discharge interface 107, the output end g of the discharge voltage sampling circuit 601 is connected with the control circuit 105, and the discharge voltage sampling circuit 601 is used for collecting the discharge voltage of the discharge interface 107 to an external output power supply and transmitting the discharge voltage to the control circuit 105. The control circuit 105 is further configured to generate a third control signal according to the discharge voltage, and the discharge circuit 103 is further configured to control on/off between the storage battery 101 and the discharge interface 107 according to the third control signal.
The discharge voltage acquisition circuit is an acquisition circuit that outputs a power supply voltage, and can acquire a voltage signal output by the discharge interface 107 to the external control box.
Specifically, the input terminal h of the discharge voltage sampling circuit 601 is connected to the discharge interface 107, and can be connected to a power supply provided by the battery power supply system 100 for an external control box. The discharge voltage sampling circuit 601 may further include an operational amplifier circuit, which is powered by the output terminal b of the internal power supply circuit 104, and the operational amplifier circuit may process the discharge power supply output by the discharge interface 107 to generate a discharge voltage signal. The output terminal g of the discharge voltage sampling circuit 601 is connected to the control circuit 105, and can transmit the discharge voltage to the control circuit 105. The control circuit 105 may generate a third control signal according to the discharge voltage to control the on/off of the discharge circuit 103. For example, the control circuit 105 may analyze whether the discharge voltage is within a normal range according to the discharge voltage uploaded by the discharge voltage sampling circuit 601, and if the discharge voltage is out of the normal range, the control circuit 105 generates a third control signal, where the third control signal acts on the discharge circuit 103, so as to control the turn-off of the discharge circuit 103, prevent the over-discharge of the storage battery 101 in the storage battery power supply system 100, further improve the reliability of the system, and effectively prolong the life of the storage battery 101.
Exemplarily, fig. 8 is a circuit schematic diagram of a discharge voltage sampling circuit provided by an embodiment of the present invention, and in combination with fig. 8, the discharge voltage sampling circuit may include a second operational amplifier circuit 801, and the second operational amplifier circuit 108 is powered by an output terminal b of the internal power supply circuit. The non-inverting input terminal of the second operational amplifier circuit 801 is connected to the input terminal of the discharge voltage sampling circuit and can be connected to the voltage signal of the discharge interface 107, the output terminal of the second operational amplifier circuit 801 is connected to the control circuit 105 through the output terminal of the discharge voltage sampling circuit, and the inverting input terminal of the second operational amplifier circuit 801 is connected to the output terminal. The second operational amplifier circuit 801 may perform an operational process on the voltage inputted from the non-inverting input terminal, generate a discharge voltage signal, and upload the discharge voltage signal to the control circuit 105. The control circuit 105 can control the on-off of the discharge circuit according to the discharge voltage signal, so that the over-discharge detection and discharge control of the storage battery power supply system are realized, the over-discharge condition of the storage battery is prevented, and the reliability of the storage battery power supply system is further improved. In addition, in the low power consumption state, the control circuit 105 may also close the channel receiving the discharge voltage signal to turn off the discharge voltage sampling function, thereby further reducing power consumption.
Optionally, fig. 9 is a circuit schematic diagram of a charging circuit and a charging current sampling circuit provided by the embodiment of the present invention, and fig. 10 is a circuit schematic diagram of a discharging circuit and a discharging current sampling circuit provided by the embodiment of the present invention, on the basis of the foregoing embodiment, in combination with fig. 9 and fig. 10, the battery power supply system further includes: a charge current sampling circuit and/or a discharge current sampling circuit. The charging current sampling circuit is respectively connected with the charging circuit and the control circuit, and the charging current sampling circuit is used for collecting the charging current flowing through the charging circuit. The discharging current sampling circuit is respectively connected with the discharging circuit and the control circuit, and the discharging current sampling circuit is used for collecting discharging current flowing through the discharging circuit.
Specifically, with reference to fig. 9, the charging circuit includes a first sampling resistor Rm1, a fuse device F, a sixth switch tube T6 and a seventh switch tube T7, one end of the sixth switch tube T6 is connected to the charging interface 106, a second end of the sixth switch tube T6 is connected to a first end of the first sampling resistor Rm1 through the fuse device F, and a second end of the first sampling resistor Rm1 is connected to the storage battery 101. The control end of the sixth switching tube T6 is grounded through a seventh switching tube T7, the control end of the seventh switching tube T7 is connected with the control circuit 105, and the seventh switching tube T7 can control the on-off of the sixth switching tube T6 according to a second control signal output by the control circuit 105. The fusing device F can realize the overcurrent release function of the charging circuit, and the safety and the reliability of the storage battery power supply system are improved. The charging current sampling circuit may include a first current sampling chip 901, where the first current sampling chip 901 is connected to two ends of the first sampling resistor Rm1, respectively, and is capable of collecting a current signal flowing through the first sampling resistor Rm1, generating a charging current signal, and uploading the charging current signal to the control circuit 105. The first current sampling chip 901 is supplied with power from the output terminal b of the internal power supply circuit. In the low power consumption state, the control circuit 105 may close the channel receiving the charging current signal, and suspend the charging current collection function.
With reference to fig. 10, the discharge circuit includes an eighth switch tube T8, a schottky diode D1, a second sampling resistor Rm2, and a ninth switch tube T9, the eighth switch tube T8, the schottky diode D1, and the second sampling resistor Rm2 are sequentially connected between the battery 101 and the discharge interface 107, the ninth switch tube T9 is connected between a control end of the eighth switch tube T8 and a ground end GND, a control end of the ninth switch tube T9 is connected to the control circuit 105, and the ninth switch tube T9 can control the on/off of the eighth switch tube T8 according to a third control signal of the control circuit 105, so that the discharge interface 107 keeps or disconnects the output power supply. The discharge sampling circuit may include a second current sampling chip 1001, and the second current sampling chip 1001 is connected to two ends of the second sampling resistor Rm2, respectively, and is capable of collecting a current signal flowing through the second sampling resistor Rm2, generating a discharge current signal, and uploading the discharge current signal to the control circuit. The second current sampling chip 1001 is also powered by the output b of the internal power supply circuit. In the low power consumption state, the control circuit 105 may close the channel receiving the discharge current signal, and suspend the discharge current collection function.
The embodiment of the utility model provides a battery power supply system utilizes the current signal of discharge current sampling circuit sampling discharge circuit output and uploads to control circuit, can also utilize charge current sampling circuit to gather the current signal that charge circuit input to the battery and upload to control circuit, realizes the sampling of multiple battery parameter, has richened battery power supply system's function.
Optionally, fig. 11 is a schematic diagram of a communication circuit and a communication interface provided in the embodiment of the present invention, referring to fig. 11, on the basis of the foregoing embodiment, the battery power supply system further includes: a communication circuit 1101 and a communication interface k. The communication interface k is used for being in communication connection with an external control box. The communication circuit 1101 comprises a communication switch tube T0, a first resistor R1, a second resistor R2, a third resistor R3, a first communication end usasrx and a second communication end usasrx, a first end of the communication switch tube T0 is connected with a communication interface k, a second end of the communication switch tube T0 is grounded, the first resistor R1 is connected between the first communication end usasrx and a first end of the communication switch tube T0, the second resistor R2 is connected between the second communication end usasrx and a control end of the communication switch tube T0, and the third resistor R3 is connected between a second end of the communication switch tube T0 and the control end. The control circuit 105 is respectively connected with the first communication terminal USART RX and the second communication terminal USART TX, and is configured to generate a communication signal according to a battery parameter, and output the communication signal to the first communication terminal USART RX and the second communication terminal USART TX, where the battery parameter includes at least one of a charging voltage, a charging current, a discharging voltage, and a discharging current.
Specifically, the control circuit 105 can determine state parameters such as the state of charge and the health degree of the storage battery according to the received battery parameters, and transmit the battery parameters and the state parameters to the external control box through two serial interfaces of the first communication terminal USART RX and the second communication terminal USART RX, and the external control box can be provided with a display screen to display the state parameters and the battery parameters. The communication interface k can also input a control signal input by an external control box, and the control circuit can control the on-off of at least one of the discharging circuit, the charging circuit and the charging voltage sampling circuit according to the control signal. In the low power consumption state, the control circuit 105 may turn off the first communication terminal USART RX and the second communication terminal USART TX, and suspend the communication function with the external control box to further reduce power consumption.
Optionally, fig. 12 is a schematic circuit diagram of a communication circuit and a communication interface provided in an embodiment of the present invention, and referring to fig. 12, on the basis of the foregoing embodiment, the battery power supply system further includes a key control circuit 1201 and a key signal access interface 1202. The key signal access interface 1202 is used for realizing communication connection with an external control box so as to access key signals. The key control circuit 1201 includes a tenth switching tube T10, a first end of the tenth switching tube T10 is connected to the control circuit 105 and the output end b of the internal power supply circuit, respectively, a second end of the tenth switching tube T10 is grounded, and a control end of the tenth switching tube T10 is connected to the key signal access interface 1202. The tenth switching tube T10 can be turned on or off according to the key signal, so that the key signal is transmitted to the control circuit 105 in a current signal manner, and the control circuit 105 can control the discharge circuit to be turned on or off according to the key signal in a current form, so as to switch the external power supply function. In the low power consumption state, the control circuit 105 may close the channel for receiving the key signal to close the key signal communication function, thereby further reducing power consumption.
Optionally, fig. 13 is a schematic circuit diagram of a buzzer circuit provided in the embodiment of the present invention, referring to fig. 13, on the basis of the foregoing embodiment, the control circuit 105 is further configured to generate a state reminding signal according to a battery parameter; the battery power supply system further includes: the buzzer circuit 1301, the buzzer circuit 1301 is connected with the control circuit 105, and is used for sending out an acoustic prompt signal according to the state prompt signal.
Specifically, the buzzer circuit 1301 includes a buzzer SG1 and an eleventh switch tube T11, a first end of the buzzer SG1 is connected to the output end b of the internal power supply circuit, a second end of the buzzer SG1 is grounded through the eleventh switch tube T11, and a control end of the eleventh switch tube T11 is connected to the control circuit 105. The control circuit 105 can generate a state reminding signal according to at least one of the battery parameters, and the state reminding signal can act on a control end of the eleventh switch tube T11 to control the eleventh switch tube T11 to be opened, so that the buzzer SG1 sounds to remind a user of checking, the fault reminding function is achieved, and the safety of the storage battery power supply system is further improved. In the low power consumption state, the control circuit 105 may control the eleventh switch tube T11 to remain turned off to turn off the buzzer SG1 reminding function, so as to further reduce power consumption.
The utility model provides a storage battery power supply system is provided with battery, charging circuit, discharge circuit, inside power supply circuit, control circuit, the interface that charges and the interface that discharges. The charging interface is connected with the storage battery through the charging circuit and can be connected with an external power supply. The discharging interface is connected with the storage battery through the discharging circuit and can output power to the external control box. The input end of the internal power supply circuit is connected with the storage battery and the charging interface respectively, and the first control end of the internal power supply circuit is connected with the discharging interface. The control circuit is respectively connected with the output end of the internal power supply circuit, the charging circuit and the discharging circuit and can control the on-off of the charging circuit and/or the discharging circuit. The internal power supply circuit stops working before being activated, the zero power consumption state of the storage battery power supply system is realized, the storage battery power supply system is activated when being connected with an external control box for the first time, internal power supply is started, normal power supply requirements are met, the storage battery power supply system keeps the zero power consumption state in an outgoing transportation stage, residual electric quantity when a user uses the storage battery power supply system for the first time can be guaranteed, the use of a line in a transportation process can be reduced, and the reliability of the storage battery function system is improved on the basis of reducing power consumption.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements, combinations and substitutions without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (10)
1. A battery power supply system, comprising: the device comprises a storage battery, a charging circuit, a discharging circuit, an internal power supply circuit, a control circuit, a charging interface and a discharging interface;
the charging interface is connected with the storage battery through the charging circuit and is used for being connected with an external power supply;
the discharging interface is connected with the storage battery through the discharging circuit and used for outputting power to an external control box;
the internal power supply circuit comprises an input end, an output end and a first control end, the input end of the internal power supply circuit is respectively connected with the storage battery and the charging interface, the first control end of the internal power supply circuit is connected with the discharging interface, and the internal power supply circuit is used for starting to convert a power supply accessed by the input end into an internal power supply and transmitting the internal power supply to the output end when the discharging interface is connected with the external control box for the first time;
the control circuit is respectively connected with the output end of the internal power supply circuit, the charging circuit and the discharging circuit, and is used for controlling the on-off of the charging circuit and/or the discharging circuit.
2. The battery power supply system according to claim 1, wherein the internal power supply circuit further comprises a first capacitor, a first switch tube, a second switch tube and a voltage stabilization chip, two ends of the first switch tube are respectively connected to the input end of the internal power supply circuit and the input end of the voltage stabilization chip, and the output end of the voltage stabilization chip is used as the output end of the internal power supply circuit; the two ends of the second switch tube are respectively connected with a grounding end and the control end of the first switch tube, and the control end of the second switch tube is connected with the discharge interface through the first capacitor.
3. The battery power supply system of claim 2, wherein the internal power supply circuit further comprises: the two ends of the third switch tube are respectively connected with the control end and the grounding end of the first switch tube, the control end of the third switch tube is connected with the third control end, the third control end is connected with the charging interface, and the third switch tube is used for controlling the on-off of the first switch tube according to whether the charging interface is connected to the external power supply or not.
4. The storage battery power supply system according to claim 3, wherein the control circuit is connected to the charging interface and is further configured to generate a low power consumption signal according to a voltage signal accessed by the charging interface;
the internal power supply circuit further includes: the two ends of the fourth switch tube are respectively connected with the control end and the grounding end of the first switch tube, the control end of the fourth switch tube is connected with the fourth control end, the fourth control end is connected with the control circuit, and the fourth switch tube is used for controlling the on-off of the first switch tube according to whether the fourth control end is connected or not under the condition that the third switch tube is disconnected.
5. The battery power supply system of claim 1, further comprising: a charging voltage sampling circuit;
the charging voltage sampling circuit comprises an input end, an output end and a second control end, the input end of the charging voltage sampling circuit is connected with the charging interface, the output end and the second control end of the charging voltage sampling circuit are respectively connected with the control circuit, and the charging voltage sampling circuit is used for collecting the charging voltage of the external power supply and transmitting the charging voltage to the control circuit;
the control circuit is further used for generating a first control signal and a second control signal according to the charging voltage; the charging voltage sampling circuit is also used for controlling the connection and disconnection between the input end of the charging voltage sampling circuit and the grounding end according to the first control signal;
the charging circuit is used for controlling the on-off of the storage battery and the charging interface according to the second control signal.
6. The battery power supply system according to claim 5, further comprising: a discharge voltage sampling circuit;
the discharge voltage sampling circuit comprises an input end and an output end, the input end of the discharge voltage sampling circuit is connected with the discharge interface, the output end of the discharge voltage sampling circuit is connected with the control circuit, and the discharge voltage sampling circuit is used for collecting discharge voltage of an external output power supply of the discharge interface and transmitting the discharge voltage to the control circuit;
the control circuit is further used for generating a third control signal according to the discharge voltage, and the discharge circuit is further used for controlling the on-off between the storage battery and the discharge interface according to the third control signal.
7. The battery power supply system of claim 6, further comprising: a charging current sampling circuit and/or a discharging current sampling circuit;
the charging current sampling circuit is respectively connected with the charging circuit and the control circuit and is used for collecting the charging current flowing through the charging circuit;
the discharging current sampling circuit is respectively connected with the discharging circuit and the control circuit and is used for collecting discharging current flowing through the discharging circuit.
8. The battery power supply system of claim 7, further comprising: a communication circuit and a communication interface;
the communication interface is used for being in communication connection with the external control box;
the communication circuit comprises a communication switch tube, a first resistor, a second resistor, a third resistor, a first communication end and a second communication end, wherein the first end of the communication switch tube is connected with the communication interface, the second end of the communication switch tube is grounded, the first resistor is connected between the first communication end and the first end of the communication switch tube, the second resistor is connected between the second communication end and the control end of the communication switch tube, and the third resistor is connected between the second end of the communication switch tube and the control end;
the control circuit is respectively connected with the first communication terminal and the second communication terminal, and is configured to generate a communication signal according to a battery parameter and output the communication signal to the first communication terminal and the second communication terminal, where the battery parameter includes at least one of the charging voltage, the charging current, the discharging voltage, and the discharging current.
9. The battery power supply system of claim 8, wherein the control circuit is further configured to generate a status alert signal based on the battery parameter;
the battery power supply system further includes: and the buzzing circuit is connected with the control circuit and is used for sending out an acoustic prompt signal according to the state prompt signal.
10. The battery power supply system according to claim 1, wherein the charging circuit comprises a fusing device and a sixth switching tube, the fusing device and the sixth switching tube are connected in series between the battery and the charging interface, and a control end of the sixth switching tube is connected with the control circuit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222384420.7U CN218243066U (en) | 2022-09-07 | 2022-09-07 | Storage battery power supply system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222384420.7U CN218243066U (en) | 2022-09-07 | 2022-09-07 | Storage battery power supply system |
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| CN218243066U true CN218243066U (en) | 2023-01-06 |
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| CN202222384420.7U Active CN218243066U (en) | 2022-09-07 | 2022-09-07 | Storage battery power supply system |
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| CN (1) | CN218243066U (en) |
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