CN214154538U - Energy storage equipment and communication detection circuit thereof - Google Patents
Energy storage equipment and communication detection circuit thereof Download PDFInfo
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- CN214154538U CN214154538U CN202023037983.6U CN202023037983U CN214154538U CN 214154538 U CN214154538 U CN 214154538U CN 202023037983 U CN202023037983 U CN 202023037983U CN 214154538 U CN214154538 U CN 214154538U
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Abstract
The utility model provides an energy storage equipment and communication detection circuitry thereof, wherein, first kind communication detection circuitry, through adopting power supply circuit, connection interface and switch circuit, sends outside the first trigger signal of power supply circuit output to outside energy storage equipment to through receiving the second trigger signal control switch circuit's that this outside energy storage equipment returns break-make, with the detection signal of output representation and this outside energy storage equipment's connected state, thereby realize the detection to this energy storage equipment and outside energy storage equipment's connected state. The second communication detection circuit receives a first trigger signal sent by an external energy storage device by adopting a connection interface and a switch circuit, forms a second trigger signal according to the first trigger signal and then outputs the second trigger signal to the external energy storage device, and controls the on-off of the switch circuit through the second trigger signal so as to output a detection signal representing the connection state of the external energy storage device, thereby realizing the detection of the connection state of the external energy storage device and the energy storage device.
Description
Technical Field
The application belongs to the technical field of energy storage device communication, and particularly relates to an energy storage device and a communication detection circuit thereof.
Background
At present, many electronic products need a plurality of battery packs to cooperate when operating, and communication is needed between each battery pack, for example, communication between a main battery pack and an energizing pack, and communication between the main battery pack and the main battery pack. However, in the process of communication between the battery pack and the battery pack, for example, in the process of communication between the main battery pack and the power-on pack, occasionally, communication data is lost due to disconnection, and further, the power-on pack cannot receive a control command of the main battery pack for a long time and is out of control, so that the requirement of using safety of the battery pack and the battery pack is not met.
Therefore, the traditional battery pack communication circuit has the problems that the connection state between the battery packs cannot be monitored, and the battery packs are easy to lose control due to long-time disconnection between the battery packs.
SUMMERY OF THE UTILITY MODEL
An object of the application is to provide an energy storage equipment and communication detection circuit thereof, aims at solving and has the connection status that can't monitor between the battery package among the traditional battery package communication circuit, and then appears easily because the long-time disconnection between the battery package leads to the problem that the battery package is out of control.
A first aspect of an embodiment of the present application provides a communication detection circuit for an energy storage device, including:
a power supply circuit for providing a first trigger signal;
the connection interface is connected with the power circuit and used for sending the first trigger signal to external energy storage equipment and receiving a second trigger signal returned by the external energy storage equipment; and
and the switch circuit is connected with the connection interface and used for switching the state of the switch under the control of the second trigger signal so as to output a detection signal for indicating the connection state of the external energy storage equipment.
In one embodiment, the method comprises the following steps:
when the connection interface is connected with the external energy storage device, the switch circuit is switched on under the control of the second trigger signal to output the detection signal in a first level state;
when the connection interface is disconnected from the external energy storage device, the switch circuit is turned off to output the detection signal in a second level state.
In one embodiment, the method comprises the following steps:
the switching circuit includes: the detection circuit comprises a first resistor, a second resistor, a third resistor and a first switching tube, wherein a first end of the first resistor is connected with a power supply interface, a second end of the first resistor and a high-potential end of the first switching tube are connected in common to form an output end of the switching circuit, the output end of the switching circuit is used for outputting the detection signal, a first end of the second resistor is used for being connected with the connection interface, a second end of the second resistor and a control end of the first switching tube are connected with a first end of the third resistor, a second end of the third resistor is grounded, and a low-potential end of the first switching tube is grounded.
In one embodiment, the power circuit includes a first diode, a fourth resistor, and a first capacitor, an anode of the first diode is connected to the power interface, a cathode of the first diode is connected to a first end of the fourth resistor, a second end of the fourth resistor and a first end of the first capacitor are connected in common as an output terminal of the power circuit, the output terminal of the power circuit is used for outputting the first trigger signal, and a second end of the first capacitor is connected to ground.
A second aspect of an embodiment of the present application provides an energy storage device, including:
a battery pack body;
a communication detection circuit as described in the first aspect of the embodiments of the present application.
In one embodiment, the energy storage device further comprises:
the main control circuit is respectively connected with the battery pack body and the communication detection circuit and is used for controlling the battery pack body to charge or discharge; the main control circuit is further used for controlling the external energy storage device to charge or discharge when the external energy storage device is confirmed to be accessed according to the detection signal.
A third aspect of the embodiments of the present application provides a communication detection circuit for an energy storage device, including:
the connection interface is used for receiving a first trigger signal output by external energy storage equipment, forming a second trigger signal according to the first trigger signal and outputting the second trigger signal to the external energy storage equipment; and
and the switch circuit is connected with the connection interface and used for switching the state of the switch under the control of the second trigger signal so as to output a detection signal for indicating the connection state of the external energy storage equipment.
In one embodiment, the switching circuit includes: the first end of the fifth resistor is connected with a power interface, the second end of the fifth resistor and the high-potential end of the second switching tube are connected in common to form the output end of the switching circuit, the output end of the switching circuit is used for outputting the detection signal, the first end of the sixth resistor is used for being connected with the connection interface, the second end of the sixth resistor and the control end of the second switching tube are connected with the first end of the seventh resistor, the second end of the seventh resistor is grounded, and the low-potential end of the second switching tube is grounded.
A fourth aspect of embodiments of the present application provides an energy storage device, including:
a battery pack body;
a communication detection circuit as described in the third aspect of the embodiments of the present application.
In one embodiment, the energy storage device further comprises:
the main control circuit is respectively connected with the battery pack body and the communication detection circuit and used for controlling the battery pack body to charge or discharge, and the main control circuit is also used for charging or discharging according to the control of the external energy storage equipment when the detection signal confirms that the external energy storage equipment is connected.
The communication detection circuit of energy storage device that first aspect of this application embodiment provided is through adopting power supply circuit, connection interface and switch circuit, sends outside external energy storage device with the first trigger signal of power supply circuit output to through receiving the second trigger signal control switch circuit's that this external energy storage device returned break-make, with the detection signal of output representation and this external energy storage device's connection status, thereby realize the detection to this energy storage device and external energy storage device's connection status.
According to the communication detection circuit of the energy storage device, the connection interface and the switch circuit are adopted to receive the first trigger signal sent by the external energy storage device, the second trigger signal is formed according to the first trigger signal and then is output to the external energy storage device, the on-off of the switch circuit is controlled through the second trigger signal so as to output the detection signal representing the connection state of the external energy storage device, and therefore the detection of the connection state of the energy storage device and the external energy storage device is achieved.
The communication detection circuit of the energy storage device provided by the first aspect of the embodiment of the present application and the communication detection circuit of the energy storage device provided by the third aspect of the embodiment of the present application may be combined into a parallel circuit, and when the two are connected, the respective switch circuits may receive a trigger signal to turn on or off, so as to output a detection signal representing a connection state with the communication detection circuit of another energy storage device, that is, detection of connection states of the two energy storage devices respectively including the communication detection circuit of the energy storage device provided by the first aspect of the embodiment of the present application and the communication detection circuit of the energy storage device provided by the third aspect of the embodiment of the present application may be achieved.
Drawings
Fig. 1 is a circuit schematic diagram of a communication detection circuit of an energy storage device according to a first aspect of an embodiment of the present application;
FIG. 2 is an exemplary circuit schematic of the communication detection circuit of the energy storage device shown in FIG. 1;
FIG. 3 is another exemplary circuit schematic of the communication detection circuit of the energy storage device shown in FIG. 1;
fig. 4 is a schematic circuit diagram of an energy storage device provided in a second aspect of an embodiment of the present application;
fig. 5 is a circuit schematic diagram of a communication detection circuit of an energy storage device according to a third aspect of an embodiment of the present application;
FIG. 6 is an exemplary circuit schematic of the communication detection circuit of the energy storage device shown in FIG. 5;
fig. 7 is a schematic diagram of a combination circuit of a communication detection circuit provided in the first aspect of the embodiment of the present application and a communication detection circuit provided in the third aspect of the embodiment of the present application;
fig. 8 is a schematic circuit diagram of an energy storage device provided in a fourth aspect of the embodiment of the present application.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship illustrated in the drawings for convenience in describing the present application and to simplify description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
Fig. 1 shows a circuit schematic diagram of a communication detection circuit 11 of an energy storage device 10 provided in a first aspect of an embodiment of the present application, and for convenience of description, only the parts related to the embodiment are shown, and detailed description is as follows:
the communication detection circuit 11 of the energy storage device 10 in this embodiment includes: the power supply circuit comprises a power supply circuit 100, a connection interface 200 and a switch circuit 300, wherein the connection interface 200 is connected with the power supply circuit 100, and the switch circuit 300 is connected with the connection interface 200. The power supply circuit 100 is used for providing a first trigger signal V1; the connection interface 200 is configured to send out the first trigger signal V1 to the external energy storage device 20, and receive a second trigger signal V2 returned by the external energy storage device 20; the switching circuit 300 is configured to switch a switching state under the control of the second trigger signal V2 to output a detection signal indicating a connection state with the external energy storage device 20.
It should be understood that energy storage device 10 may be a stand-alone battery pack or may be a fully functional power supply. The power circuit 100 may be composed of a combination of a power supply, a resistor, and the like, or may also be composed of a power interface for accessing an external power supply and outputting a voltage signal as the first trigger signal V1. The switching circuit 300 may include a switching tube. The switch states include an on state and an off state. The connection interface 200 may be any interface having a function of connecting with an external energy storage device, such as a power supply interface, a three-pin interface, and the like. In an embodiment, the connection interface 200 may be used only for implementing connection of the communication detection function, and in other embodiments, the connection interface 200 may also be used for implementing parallel connection between two energy storage devices, for example, implementing parallel connection between a master battery pack and a slave battery pack, thereby implementing expansion of the energy storage devices. The first and second trigger signals V1 and V2 may be level signals, wherein the level signals include a high level signal and a low level signal. The first trigger signal V1 and the second trigger signal V2 are the same type of signal. In this case, the second trigger signal V2 is a signal obtained by processing the first trigger signal V1 by the external energy storage device 20, for example, a signal obtained by the first trigger signal V1 passing through a unidirectional circuit on the external energy storage device 20 is used as the second trigger signal V2. The detection signal Icheck1 may be a level signal having at least two level states, wherein a level state change of the detection signal Icheck1 is associated with a switching state change of the switching circuit 300, for example, when the switching circuit 300 is turned on, the detection signal Icheck1 is output at a high level; when the switching circuit 300 is turned off, the detection signal Icheck1 is output at a low level.
In the communication detection circuit 11 of the energy storage device 10 in this embodiment, by using the power supply circuit 100, the connection interface 200, and the switch circuit 300, the first trigger signal V1 output by the power supply circuit 100 is sent out to the external energy storage device 20, and the on-off of the switch circuit 300 is controlled by receiving the second trigger signal V2 returned by the external energy storage device 20, so as to output a detection signal representing the connection state with the external energy storage device 20, thereby detecting the connection state between the energy storage device 10 and the external energy storage device 20. The problem that the connection state between the battery packs cannot be monitored in a traditional battery pack communication circuit, and the battery pack is out of control due to long-time disconnection between the battery packs is easy to occur is solved.
In one embodiment, when energy storage device 10 and external energy storage device 20 are connected, switching circuit 300 is turned on under the control of second trigger signal V2 to output detection signal Icheck1 in a first level state;
when the energy storage device 10 and the external energy storage device 20 are disconnected, the switching circuit 300 is turned off to output the detection signal Icheck1 in the second level state.
It should be understood that the first level state and the second level state are respectively high level or low level. The switching circuit 300 in this embodiment is only turned on under the control of the second trigger signal V2, i.e., only when the energy storage device 10 and the external energy storage device 20 are connected. When the switch circuit 300 is turned on and off, the level states of the output detection signal Icheck1 are different. That is, by detecting the detection signal Icheck1, it can be determined whether the energy storage device 10 and the external energy storage device 20 are connected.
Alternatively, in other embodiments, the second trigger signal V2 may also be used to control the switch circuit 300 to be turned off, that is, the switch circuit 300 is in a conducting state when the energy storage device 10 and the external energy storage device 20 are disconnected. When energy storage device 10 and external energy storage device 20 are connected, switching circuit 300 is in an off state under the control of second trigger signal V2.
Referring to fig. 2, in one embodiment, the switch circuit 300 includes: the first end of the first resistor R1 is connected to the power source interface VDD1, the second end of the first resistor R1 and the high-potential end of the first switch tube Q1 are commonly connected to an output end of the switch circuit 300, the output end of the switch circuit 300 is used for outputting the detection signal Icheck1, the first end of the second resistor R2 is used for being connected to the output end of the connection circuit 400, the second end of the second resistor R2 is connected to the control end of the first switch tube Q1 and the first end of the third resistor R3, the second end of the third resistor R3 is connected to ground, and the low-potential end of the first switch tube Q1 is connected to ground.
It should be understood that the first switch Q1 may be a NMOS transistor, an NPN transistor, or other switch transistor. When the first switch Q1 is an NPN transistor, the base of the NPN transistor is the control terminal of the first switch Q1, the collector of the NPN transistor is the high potential terminal of the first switch Q1, and the emitter of the NPN transistor is the low potential terminal of the first switch Q1. When the energy storage device 10 is disconnected from the external energy storage device 20, the control end of the first switching tube Q1 is cut off due to no trigger signal, and at this time, the output detection signal Icheck1 is at a high level; when the energy storage device 10 is connected to the external energy storage device 20, the control terminal of the first switching tube Q1 is turned on by the trigger signal, and at this time, the output detection signal Icheck1 is at a low level.
In the switch circuit 300 in this embodiment, by using the first resistor R1, the second resistor R2, the third resistor R3, and the first switching tube Q1, the detection signal Icheck1 that is turned on and output at a low level under the control of the trigger signal is realized, the detection signal Icheck1 that is turned off and output at a high level under the control of no access trigger signal is realized, the feedback output of whether the external energy storage device 2010 and the external energy storage device 20 are connected is realized, and the circuit is simple.
Optionally, referring to fig. 3, the switch circuit 300 may further include a second capacitor C2, a third capacitor C3, and a fourth capacitor C4, where the second capacitor C2 is connected between the second end of the first resistor R1 and ground, the third capacitor C3 is connected between the first end of the second resistor R2 and ground, and the fourth capacitor C4 is connected between the second end of the second resistor R2 and ground, so as to filter noise interference in the switch circuit 300.
Referring to fig. 2, in an embodiment, the power circuit 100 includes a first diode D1, a fourth resistor R4, and a first capacitor C1, an anode of the first diode D1 is connected to the power interface VDD3, a cathode of the first diode D1 is connected to a first end of the fourth resistor R4, a second end of the fourth resistor R4 and a first end of the first capacitor C1 are commonly connected to form an output terminal of the power circuit 100, the output terminal of the power circuit 100 is used for the first trigger signal V1, and a second end of the first capacitor C1 is grounded.
In one embodiment, referring to fig. 2, the connection interface 200 includes: a first pin connected to the power supply circuit 100 and a second pin connected to the switch circuit 300. The first pin is used for receiving a first trigger signal V1 and outputting a first trigger signal V1 to the external energy storage device 20. The second pin is used for receiving a second trigger signal V2 returned by the external energy storage device 20 and outputting a returned second trigger signal V2 to the switch circuit 300.
It should be understood that the first pin and the second pin in the connection interface 200 in this embodiment are not directly connected, that is, the power circuit 100 cannot be connected to the switch circuit 300 through the connection interface 200, the first trigger signal V1 output by the power circuit 100 cannot be directly output to the switch circuit 300, the switch circuit 300 is only activated when the connection interface 200 receives the second trigger signal V2, and the second trigger signal V2 must be output to the connection interface 200 by the external energy storage device 20 when the external energy storage device 20 (e.g., from a battery pack) is connected, so that when the switch circuit 300 receives the second trigger signal V2 and activates, it can be confirmed that the external storage device 20 is connected at this time, thereby implementing the communication detection and determination between the two.
Referring to fig. 4, a second aspect of the embodiment of the present application provides an energy storage device 10, which includes a battery pack body 12 and a communication detection circuit 11 according to the first aspect of the embodiment of the present application.
It should be understood that energy storage device 10 may be a stand-alone battery pack or may be a fully functional power supply.
The energy storage device 10 in this embodiment, by adding the communication detection circuit 11, when being connected to the external energy storage device 20, controls the switching state of the switching circuit 300 by receiving the second trigger signal V2 returned by the external energy storage device 20, so as to output a detection signal indicating the connection state with the external energy storage device 20, that is, realize detection according to the connection state of the energy storage device 10 and the external energy storage device 20.
Referring to fig. 4, in an embodiment, the energy storage device 10 further includes a main control circuit 13, where the main control circuit 13 is respectively connected to the battery pack body 12 and the communication detection circuit 11, and is configured to control the battery pack body 12 to charge or discharge; the main control circuit 13 is further configured to control the external energy storage device 20 to charge or discharge when it is determined that the external energy storage device 20 is accessed according to the detection signal.
It should be understood that the master control circuit 13 may be a microprocessor with charge and discharge management. The main control circuit 13 is used for controlling the battery pack body 12 to charge or discharge. When the main control circuit 13 receives the detection signal indicating that the external energy storage device 20 is connected, it confirms the access of the external energy storage device 20, communicates with the external energy storage device 20, and controls the charging and discharging of the external energy storage device 20. That is, the energy storage device can be used independently, or can be used after being parallel-connected with other energy storage devices, and after parallel-connected, the energy storage device is used as a main device to correspondingly control the energy storage device connected to the parallel-connected device.
Optionally, the main control circuit 13 determines the connection state of the energy storage device 10 according to the level state of the detection signal Icheck1, and sends an alarm when the detection signal Icheck1 indicates that the energy storage device 10 is disconnected from the external energy storage device 20, so as to remind a user to connect the energy storage device 10 to the external energy storage device 20 in time, thereby avoiding communication data loss and communication out-of-control situations caused by long-time disconnection between the energy storage device 10 and the external energy storage device 20.
Referring to fig. 5, a third aspect of the embodiment of the present application provides a communication detection circuit 21 of an energy storage device 20, including a connection interface 400 and a switch circuit 500, where the connection interface 400 is connected to the switch circuit 500, and the connection interface 400 is configured to receive a first trigger signal V1 output by an external energy storage device 10, and form a second trigger signal V2 according to a first trigger signal V1 and output the second trigger signal V2 to the external energy storage device 10; the switching circuit 500 is connected to the connection interface 400, and is configured to switch a switching state under the control of the second trigger signal V2 to output a detection signal Icheck2 indicating a connection state with the external energy storage device 10.
It should be understood that energy storage device 20 may be a stand-alone battery pack or may be a fully functional power supply. The switching circuit 500 may include a switching tube. The switch states include an on state and an off state. The connection interface 400 may be any interface having a function of connecting with an external energy storage device, such as a power supply interface, a three-pin interface, and the like. In an embodiment, the connection interface 400 may be used only for implementing connection of the communication detection function, and in other embodiments, the connection interface 400 may also be used for implementing parallel connection between two energy storage devices, for example, implementing parallel connection between a master battery pack and a slave battery pack, thereby implementing expansion of the energy storage devices. The first and second trigger signals V1 and V2 may be level signals, wherein the level signals include a high level signal and a low level signal. The first trigger signal V1 and the second trigger signal V2 are the same type of signal. In this case, the second trigger signal V2 is a signal obtained by processing the first trigger signal V1 by the connection interface 400, for example, a signal obtained by the first trigger signal V1 passing through a unidirectional circuit on the connection interface 400 is used as the second trigger signal V2. The detection signal Icheck2 may be a level signal having at least two level states, wherein a level state change of the detection signal Icheck2 is associated with a switching state change of the switching circuit 500, for example, when the switching circuit 500 is turned on, the detection signal Icheck2 is output at a high level; when the switching circuit 500 is turned off, the detection signal Icheck2 is output at a low level.
In the communication detection circuit 21 of the energy storage device 20 in this embodiment, the connection interface 400 and the switch circuit 500 are adopted to receive the first trigger signal V1 sent by the external energy storage device 10, form the second trigger signal V2 according to the first trigger signal V1, and output the second trigger signal V2 to the external energy storage device 10, and control the on/off of the switch circuit 500 through the second trigger signal V2 to output the detection signal Icheck2 representing the connection state with the external energy storage device 10, so that the detection of the connection state between the energy storage device 20 and the external energy storage device 10 is realized. The problem that the connection state between the battery packs cannot be monitored in a traditional battery pack communication circuit, and the battery pack is out of control due to long-time disconnection between the battery packs is easy to occur is solved.
In one embodiment, when external energy storage device 10 and energy storage device 20 are connected, switching circuit 500 is turned on under the control of second trigger signal V2 to output detection signal Icheck2 in a first level state;
when external energy storage device 10 and energy storage device 20 are disconnected, switching circuit 500 is turned off to output detection signal Icheck2 in the second level state.
It should be understood that the first level state and the second level state are respectively high level or low level. The switching circuit 500 in this embodiment is only turned on under the control of the second trigger signal V2, i.e., only when the energy storage device 20 and the external energy storage device 10 are connected. When the switch circuit 500 is turned on and off, the level states of the output detection signal Icheck2 are different. That is, by detecting the detection signal Icheck2, it can be determined whether the energy storage device 20 and the external energy storage device 10 are connected.
Alternatively, in other embodiments, the trigger signal may also be used to control the switch circuit 500 to be turned off, that is, the switch circuit 500 is in a conducting state when the energy storage device 20 and the external energy storage device 10 are disconnected. When the energy storage device 20 and the external energy storage device 10 are connected, the switching circuit 500 is in an off state under the control of the second trigger signal V2.
Referring to fig. 6, in one embodiment, the switch circuit 500 includes: a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, and a second switch Q2, wherein a first end of the fifth resistor R5 is connected to the power source interface VDD2, a second end of the fifth resistor R5 and a high-potential end of the second switch Q2 are commonly connected to an output end of the switch circuit 500, an output end of the switch circuit 500 is used for outputting the detection signal Icheck2, a first end of the sixth resistor R6 is used for being connected to an output end of the connection circuit 400, a second end of the sixth resistor R6 and a control end of the second switch Q2 are connected to a first end of the seventh resistor R7, a second end of the seventh resistor R7 is grounded, and a low-potential end of the second switch Q2 is grounded.
It should be understood that the second switch Q2 may be a NMOS transistor, an NPN transistor, or other switch transistor. When the second switch Q2 is an NPN transistor, the base of the NPN transistor is the control terminal of the second switch Q2, the collector of the NPN transistor is the high potential terminal of the second switch Q2, and the emitter of the NPN transistor is the low potential terminal of the second switch Q2. When the energy storage device 20 is disconnected from the external energy storage device 10, the control terminal of the second switching tube Q2 is turned off due to the absence of the second trigger signal V2, and at this time, the output detection signal Icheck2 is at a high level; when the energy storage device 20 is connected to the external energy storage device 10, the control terminal of the second switching tube Q2 is turned on by the second trigger signal V2, and the output detection signal Icheck2 is at a low level.
In the switching circuit 500 of this embodiment, by using the fifth resistor R5, the sixth resistor R6, the seventh resistor R7, and the second switching tube Q2, the detection signal Icheck2 that is turned on and output at a low level under the control of the second trigger signal V2 is realized, and the detection signal Icheck2 that is turned off and output at a high level when the second trigger signal V2 is not switched on is realized, so that feedback output of whether the energy storage device 20 and the external energy storage device 10 are connected is realized, and the circuit is simple.
Optionally, referring to fig. 7, the switch circuit 500 may further include a fifth capacitor C5, a sixth capacitor C6, and a seventh capacitor C7, where the fifth capacitor C5 is connected between the second end of the fifth resistor R5 and the ground, the sixth capacitor C6 is connected between the first end of the sixth resistor R6 and the ground, and the seventh capacitor C7 is connected between the second end of the seventh resistor R7 and the ground, so as to filter noise interference in the switch circuit 500.
Referring to fig. 6, in one embodiment, the connection interface 400 includes a first pin and a second pin, the second pin is connected to the first pin, the first pin is used for receiving the first trigger signal V1, and the second pin is used for returning the second trigger signal to the external energy storage device 10 and outputting the second trigger signal to the switch circuit 500.
Optionally, the first pin and the second pin of the connection interface 400 are connected through a second diode D2, the anode of the second diode D2 is connected to the first pin, and the cathode of the second diode D2 is connected to the second pin. In other embodiments, the first pin and the second pin of the connection interface 400 may be connected through a resistor or the like.
It can be understood that, referring to fig. 7, the communication detection circuit 11 of the energy storage device 10 of the first aspect in the embodiment of the present application and the communication detection circuit 21 of the energy storage device 20 of the third aspect in the embodiment of the present application form a trigger signal flowing to a complete circuit when they are connected. When the energy storage device 10 and the energy storage device 20 are connected, that is, when the communication detection circuit 11 and the communication detection circuit 21 are connected via the connection interface 200 and the connection interface 400, the first trigger signal V1 output by the power supply circuit 100 flows through the connection interface 400 via the connection interface 200, and the connection interface 400 outputs the first trigger signal V1 as the second trigger signal V2, and outputs the second trigger signal V2 to the switch circuit 300 via the connection interface 200, and outputs the second trigger signal V1 to the switch circuit 500, thereby controlling the switching states of the switch circuit 300 and the switch circuit 500. When the energy storage device 10 and the energy storage device 20 are disconnected, that is, the connection interface 200 and the connection interface 400 are disconnected, the first trigger signal V1 output by the power supply circuit 100 cannot be output to the switch circuit 300 through the connection circuit 200 or cannot be output to the switch circuit 500 through the connection circuit 400.
The communication detection circuit 11 of the energy storage device 10 according to the first aspect of the embodiment of the present application and the communication detection circuit 21 of the energy storage device 20 according to the third aspect of the embodiment of the present application may be combined into a parallel circuit, and when the two circuits are connected, the respective switch circuits may receive a trigger signal to turn on or off, so as to output a detection signal representing a connection state with the communication detection circuit of another energy storage device, that is, detection of connection states of two energy storage devices respectively including the communication detection circuit of the energy storage device according to the first aspect of the embodiment of the present application and the communication detection circuit of the energy storage device according to the third aspect of the embodiment of the present application may be achieved.
Referring to fig. 8, a fourth aspect of the present embodiment provides an energy storage device 20, including: a battery pack body 22 and a communication detection circuit 21 of the energy storage device 20 as in the third aspect of the embodiments of the present application.
The energy storage device 20 in this embodiment, by adding the communication detection circuit 21, realizes that when connected to the external energy storage device 10, the second trigger signal V2 controls the switching state of the switching circuit 500 by receiving the first trigger signal V1 output by the external energy storage device 10 and forming the second trigger signal V2 according to the first trigger signal V1, so as to output the detection signal Icheck2 for indicating the connection state with the external energy storage device 10, that is, the detection according to the connection state of the energy storage device 20 and the external energy storage device 10 is realized.
Referring to fig. 8, in an embodiment, the energy storage device 20 further includes a main control circuit 23, where the main control circuit 23 is respectively connected to the battery pack body 22 and the communication detection circuit 21, and is configured to control the battery pack body 22 to charge or discharge; the main control circuit 23 is further configured to control the external energy storage device 10 to charge or discharge when the external energy storage device 10 is determined to be accessed according to the detection signal Icheck 2. That is, the energy storage device may be used independently, or may be used after being parallel-connected with other energy storage devices, and after parallel-connected, the energy storage device is controlled as a slave device by the energy storage device accessed by the parallel-connected device.
It should be understood that the master control circuit 23 may be a microprocessor with charge and discharge management. The main control circuit 23 is used for controlling the battery pack body 22 to charge or discharge. When the main control circuit 23 receives the detection signal Icheck2 indicating that the external energy storage device 10 is connected, the main control circuit confirms the connection of the external energy storage device 10, communicates with the external energy storage device 10, and controls the charging and discharging of the external energy storage device 10.
Optionally, the main control circuit 23 determines the connection state of the energy storage device 20 according to the level state of the detection signal Icheck2, and sends an alarm when the detection signal Icheck2 indicates that the energy storage device 20 is disconnected from the external energy storage device 10, so as to remind a user to connect the energy storage device 20 and the external energy storage device 10 in time, thereby avoiding communication data loss and communication out-of-control situations caused by long-time disconnection between the energy storage device 20 and the external energy storage device 10.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (10)
1. A communication detection circuit for an energy storage device, comprising:
a power supply circuit for providing a first trigger signal;
the connection interface is connected with the power circuit and used for sending the first trigger signal to external energy storage equipment and receiving a second trigger signal returned by the external energy storage equipment; and
and the switch circuit is connected with the connection interface and used for switching the state of the switch under the control of the second trigger signal so as to output a detection signal for indicating the connection state of the external energy storage equipment.
2. The communication detection circuit of claim 1, comprising:
when the connection interface is connected with the external energy storage device, the switch circuit is switched on under the control of the second trigger signal to output the detection signal in a first level state;
when the connection interface is disconnected from the external energy storage device, the switch circuit is turned off to output the detection signal in a second level state.
3. The communication detection circuit according to claim 1 or 2, wherein the switching circuit includes: the detection circuit comprises a first resistor, a second resistor, a third resistor and a first switching tube, wherein a first end of the first resistor is connected with a power supply interface, a second end of the first resistor and a high-potential end of the first switching tube are connected in common to form an output end of the switching circuit, the output end of the switching circuit is used for outputting the detection signal, a first end of the second resistor is used for being connected with the connection interface, a second end of the second resistor and a control end of the first switching tube are connected with a first end of the third resistor, a second end of the third resistor is grounded, and a low-potential end of the first switching tube is grounded.
4. The communication detection circuit according to claim 1 or 2, wherein the power circuit comprises a first diode, a fourth resistor and a first capacitor, an anode of the first diode is connected to the power interface, a cathode of the first diode is connected to a first terminal of the fourth resistor, a second terminal of the fourth resistor and a first terminal of the first capacitor are connected in common as an output terminal of the power circuit, the output terminal of the power circuit is used for outputting the first trigger signal, and a second terminal of the first capacitor is connected to ground.
5. An energy storage device, comprising:
a battery pack body;
a communication detection circuit as claimed in any one of claims 1 to 4.
6. The energy storage device of claim 5, further comprising:
the main control circuit is respectively connected with the battery pack body and the communication detection circuit and is used for controlling the battery pack body to charge or discharge; the main control circuit is further used for controlling the external energy storage device to charge or discharge when the external energy storage device is confirmed to be accessed according to the detection signal.
7. A communication detection circuit for an energy storage device, comprising:
the connection interface is used for receiving a first trigger signal output by external energy storage equipment, forming a second trigger signal according to the first trigger signal and outputting the second trigger signal to the external energy storage equipment; and
and the switch circuit is connected with the connection interface and used for switching the state of the switch under the control of the second trigger signal so as to output a detection signal for indicating the connection state of the external energy storage equipment.
8. The communication detection circuit of claim 7, wherein the switching circuit comprises: the first end of the fifth resistor is connected with a power interface, the second end of the fifth resistor and the high-potential end of the second switching tube are connected in common to form the output end of the switching circuit, the output end of the switching circuit is used for outputting the detection signal, the first end of the sixth resistor is used for being connected with the connection interface, the second end of the sixth resistor and the control end of the second switching tube are connected with the first end of the seventh resistor, the second end of the seventh resistor is grounded, and the low-potential end of the second switching tube is grounded.
9. An energy storage device, comprising:
a battery pack body;
the communication detection circuit of claim 7 or 8.
10. The energy storage device of claim 9, further comprising:
the main control circuit is respectively connected with the battery pack body and the communication detection circuit and used for controlling the battery pack body to charge or discharge, and the main control circuit is also used for charging or discharging according to the control of the external energy storage equipment when the detection signal confirms that the external energy storage equipment is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023037983.6U CN214154538U (en) | 2020-12-16 | 2020-12-16 | Energy storage equipment and communication detection circuit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023037983.6U CN214154538U (en) | 2020-12-16 | 2020-12-16 | Energy storage equipment and communication detection circuit thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214154538U true CN214154538U (en) | 2021-09-07 |
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| CN202023037983.6U Active CN214154538U (en) | 2020-12-16 | 2020-12-16 | Energy storage equipment and communication detection circuit thereof |
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| Country | Link |
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| CN (1) | CN214154538U (en) |
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2020
- 2020-12-16 CN CN202023037983.6U patent/CN214154538U/en active Active
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Address after: 518000 Factory Building 401, Runheng Industrial Plant 1, Fuyuan Road, Zhancheng Community, Fuhai Street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Zhenghao Innovation Technology Co.,Ltd. Country or region after: China Address before: 518000, 1st Floor, Building E, Jiehe Industrial City, Shuitian Community, Shiyan Street, Bao'an District, Shenzhen City, Guangdong Province Patentee before: Shenzhen Zhenghao Innovation Technology Co.,Ltd. Country or region before: China |