Anti-arcing connection structure of energy storage power supply

Abstract

The utility model discloses an energy storage power supply anti-arcing connecting structure, which comprises a base, a connecting wire and connecting plugs, the two ends of the connecting wire are fixedly connected with the connecting plugs, and the two groups of connecting plugs are respectively inserted into the base of the corresponding battery, so that the connection of the two groups of batteries is realized. A circuit protection module is fixedly connected in a shell of the connecting plug, the connecting line is electrically connected with the circuit protection module, a connecting plug is fixedly connected to the end of the shell and electrically connected with the circuit protection module, the connecting plug is matched with the base, and a signal sending component is fixedly connected in the shell and electrically connected with the circuit protection module. A buckle and a button matched with the buckle are arranged on the shell, the button corresponds to the sending end of the signal sending component, and a clamping table matched with the buckle is arranged on the base. The utility model relates to the technical field of battery connection structures, and has the characteristics of simplicity and convenience in connection, stability in connection and excellent safety.

Description

Technical Field

[0001] The utility model relates to the technical field of battery connection structures, in particular to an arc-proof connection structure for an energy storage power source. Background Art

[0002] Most existing energy storage power sources connect multiple groups of batteries through connectors. However, traditional battery connection methods are often complex in design and cumbersome in operation, and there are certain safety risks during battery replacement and maintenance.

[0003] The current battery connection structure mainly relies on screws or other mechanical fixing methods. Although these connection methods can achieve battery connection, there are many inconveniences in actual operation. First of all, this fixing method requires the use of tools for installation and disassembly, which not only increases the operation time, but also increases the complexity of the operation. Secondly, the traditional connection method has hidden dangers in safety. For example, it is difficult to quickly disconnect the battery connection in an emergency, which increases the safety risk. In addition, these connection methods pose challenges to the integration of intelligent functions such as circuit protection and status monitoring in the battery management system (BMS).

[0004] In view of the above problems, it is urgent to develop a new battery connection structure. Utility Model Content

[0005] In view of the above-mentioned deficiencies existing in the prior art, the purpose of the utility model is to provide an energy storage power supply arc-proof connection structure which has simple and convenient connection, stable connection and excellent safety.

[0006] The technical solution adopted by the utility model to achieve the above-mentioned purpose is: an anti-arcing connection structure of an energy storage power supply, comprising a base, a connecting wire and a connecting plug, the base is fixedly connected to a battery and electrically connected to the battery, both ends of the connecting wire are fixedly connected to the connecting plugs, two groups of the connecting plugs are respectively plugged into the bases of the corresponding batteries, thereby realizing the connection of two groups of batteries, the connecting plug comprises a shell, a plug connector, a circuit protection module and a signal sending component, the circuit protection module is fixedly connected to the inside of the shell, the connecting wire is electrically connected to the circuit protection module, the end of the shell is fixedly connected to the plug connector, the plug connector is electrically connected to the circuit protection module, the plug connector matches the base, the signal sending component is fixedly connected to the inside of the shell, the signal sending component is electrically connected to the circuit protection module, a buckle and a button matching the buckle are provided on the shell, the button corresponds to the sending end of the signal sending component, and a card platform is provided on the base to match the buckle.

[0007] In the above technical solution, a mounting platform is fixedly connected inside the shell, the signal sending component is fixedly connected to the mounting platform, the buckle is rotatably connected to the mounting platform in a lever manner, one end of the buckle located at the turning point is an inner arm, and the other end of the buckle located at the turning point is an outer arm, the end of the inner arm corresponds to the signal sending component, the end of the outer arm is provided with a tongue matching the platform, a first spring is fixedly connected between the inner arm and the mounting platform, one end of the second spring is fixedly connected to the outer arm, the other end of the second spring is in contact with the top surface of the shell, the end of the inner arm is fixedly connected to the button, and a downward pressure port is provided on the shell corresponding to the button.

[0008] In the above technical solution, the circuit protection module includes a module housing and a control board located in the module housing, one end of the module housing is fixedly connected to an input terminal, and the other end is fixedly connected to an output terminal, the input terminal and the output terminal are electrically connected to the control board, the connecting wire is electrically connected to the input terminal, and the plug connector is provided with an output port, which is plugged into the output terminal.

[0009] In the above technical solution, a signal port is fixedly connected inside the module housing, the signal port is electrically connected to the control board, and a signal terminal is provided on the signal sending component, and the signal terminal is plugged into the signal port.

[0010] In the above technical solution, the control board includes a PCB board and a voltage detection circuit and a power switch circuit arranged on the PCB board, the voltage detection circuit is electrically connected to the power switch circuit, and the signal sending component is electrically connected to the power switch circuit.

[0011] Compared with the prior art, the utility model has the following beneficial effects: by respectively plugging two groups of connecting plugs into the base of each group of batteries, the connection of the two groups of batteries is realized, the connection is simple and convenient, and when the connecting plug is connected to the base, the connection stability can be ensured by the cooperation between the buckle and the card base, and at the same time, the circuit passes through the circuit protection module inside the connecting plug, and the voltage is detected by the circuit protection module. When a high voltage is detected, the circuit protection module cuts off the circuit to ensure the safety of the battery, and when the connecting plug is disassembled from the base, the button can be pressed down to disengage the buckle from the card base, and the button pressing signal sending component At this time, the signal sending component sends a signal to the circuit protection module, and the circuit protection module cuts off the circuit, which can avoid the generation of arcs during the separation of the connecting plug and the base. Furthermore, when the connecting plug is plugged into the base, the buckle rotates under the action of the card platform. At this time, the buckle can also press down the signal sending component to send a signal to the circuit protection module, so as to temporarily disconnect the circuit. When the buckle and the card platform are connected in place, under the action of the first spring and the second spring, the buckle releases the signal sending component, and the circuit protection module connects the circuit. Such a structure makes the electrical connection between the two battery groups safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the exploded structure of the connecting plug in the utility model;

[0014] Figure 3 It is a structural schematic diagram of another perspective of the connection plug in the utility model;

[0015] Figure 4 This is a schematic diagram of the buckle installation structure in the utility model;

[0016] Figure 5 It is a structural schematic diagram of the circuit protection module in the utility model.

[0017] In the figure: 100 base, 101 card table, 200 connecting wire, 300 connecting plug, 301 shell, 302 plug connector, 303 circuit protection module, 304 signal sending component, 305 buckle, 306 button, 307 mounting table, 308 inner arm, 309 outer arm, 310 tongue, 311 first spring, 312 second spring, 313 pressing port, 314 module shell, 315 control board, 316 incoming terminal, 317 outgoing terminal, 318 outgoing port, 319 signal port, 320 signal terminal. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1 —5. An anti-arcing connection structure for an energy storage power source, comprising a base 100, a connecting wire 200 and a connecting plug 300. The base 100 is fixedly connected to a battery and electrically connected to the battery. Both ends of the connecting wire 200 are fixedly connected to connecting plugs 300. Two sets of connecting plugs 300 are respectively plugged into the base 100 of the corresponding battery, thereby realizing the connection of two sets of batteries. This connection method can quickly realize the connection of two sets of batteries, and the operation is simple and convenient.

[0020] In addition, the above-mentioned connecting plug 300 includes a shell 301, a plug connector 302, a circuit protection module 303 and a signal sending component 304. The circuit protection module 303 is fixedly connected inside the shell 301. The circuit protection module 303 is used to detect the circuit voltage and realize the opening and closing control of the circuit according to the voltage. The connecting line 200 is electrically connected to the circuit protection module 303. The end of the shell 301 is also fixedly connected to the plug connector 302. The plug connector 302 is electrically connected to the circuit protection module 303. The plug connector 302 matches the base 100, that is, the plug connector 302 can be plugged into the base 100. The signal sending component 304 is also fixedly connected inside the shell 301. The signal sending component 304 is electrically connected to the circuit protection module 303. The signal sending component 304 is used to send a signal to the circuit protection module 303, so that the circuit protection module 303 controls the opening and closing of the circuit according to the signal.

[0021] Furthermore, a buckle 305 and a button 306 matching the buckle 305 are provided on the shell 301, and the button 306 corresponds to the sending end of the signal sending component 304. The matching buckle is provided with a card platform 101 on the base 100. When the connecting plug 300 is plugged into the base 100, the buckle 305 cooperates with the card platform 101 to ensure the stability of the connection between the two, and the buckle 305 and the card platform 101 can be misaligned by pressing the button 306, thereby achieving the separation of the two, and when the button 306 is pressed down, the sending end of the signal sending component 304 can be pressed down, and at this time, the signal sending component 304 can send a signal to the circuit protection module 303, thereby disconnecting the circuit, thereby ensuring the safety of the battery when connected or removed.

[0022] The utility model further states that a mounting platform 307 is fixedly connected inside the housing 301, a signal sending component 304 is fixedly connected to the mounting platform 307, a buckle 305 is rotatably connected to the mounting platform 307 in a lever manner, one end of the buckle 305 located at the turning point is an inner arm 308, and the other end located at the turning point is an outer arm 309, the end of the inner arm 308 corresponds to the signal sending component 304, the end of the outer arm 309 is provided with a tongue 310 matching the card platform 101, a first spring 311 is fixedly connected between the inner arm 308 and the mounting platform 307, one end of the second spring 312 is fixedly connected to the outer arm 309, the other end of the second spring 312 abuts against the top surface of the housing 301, the end of the inner arm 308 is fixedly connected to the button 306, and the outer The shell 301 is provided with a pressing port 313 corresponding to the button 306, so that the first spring 311 and the second spring 312 can be compressed by pressing the button 306, and the buckle 305 presses down the sending end of the signal sending component 304, so that the signal sending component 304 sends a signal to the circuit protection module 303, and the circuit is disconnected. At this time, the buckle 305 also rotates around the turning point, so that the outer arm 309 rises, so that the buckle 305 is separated from the card table 101, and when the button 306 is released, the buckle 305 is restored to its original position under the elastic force of the first spring 311 and the second spring 312, and the signal sending component 304 does not send a signal to the circuit protection module 303, and the outer arm 309 descends, and the circuit is turned on;

[0023] Furthermore, when the connecting plug 300 is plugged into the base 100, the tongue 310 of the buckle 305 rotates and compresses the first spring 311 and the second spring 312 under the action of the inclined surface of the card platform 101. At this time, the buckle 305 can also press down the signal sending component 304 to send a signal to the circuit protection module 303, thereby temporarily disconnecting the circuit. When the buckle 305 and the card platform 101 are snapped into place, under the action of the first spring 311 and the second spring 312, the buckle 305 releases the signal sending component 304, and the circuit protection module 303 connects the circuit.

[0024] The utility model further states that the circuit protection module 303 includes a module housing 314 and a control board 315 located in the module housing 314. One end of the module housing 314 is fixedly connected to an input terminal 316, and the other end is fixedly connected to an output terminal 317. The input terminal 316 and the output terminal 317 are electrically connected to the control board 315. The connecting wire 200 is electrically connected to the input terminal 316. The plug connector 302 is provided with an output port 318, and the output port 318 is plugged with the output terminal 317. Through such a structure, the connecting wire 200 is electrically connected to the circuit protection module 303, and the plug connector 302 is electrically connected to the control module.

[0025] Furthermore, a signal port 319 is fixedly connected inside the module housing 314, and the signal port 319 is electrically connected to the control board 315. A signal terminal 320 is provided on the signal sending component 304, and the signal terminal 320 is plugged into the signal port 319, thereby realizing the electrical connection between the signal sending component 304 and the circuit protection module 303.

[0026] The utility model further states that the control board 315 includes a PCB board and a voltage detection circuit and a power switch circuit arranged on the PCB board. The voltage detection circuit is electrically connected to the power switch circuit, and the signal sending component 304 is electrically connected to the power switch circuit. Specifically, the voltage detection circuit is mainly responsible for monitoring the voltage level in the circuit. Once it is detected that the voltage exceeds a preset safety threshold, a signal is generated to trigger the power switch circuit to disconnect the circuit. At the same time, the power switch circuit disconnects or connects the circuit according to the output signal of the voltage detection circuit or the external control signal (signal sending component 304);

[0027] Furthermore, the voltage detection circuit can be composed of the following components:

[0028] Comparator: used to compare the input voltage with a reference voltage. If the input voltage is higher than the reference voltage, the comparator outputs a high signal;

[0029] Reference voltage source: provides a stable reference voltage for comparison with the input voltage;

[0030] Resistor divider: In high voltage systems, resistor dividers are used to reduce the voltage being monitored to a level acceptable to the comparator;

[0031] Furthermore, the power switch circuit can be composed of the following components:

[0032] Relay or solid-state relay (SSR): A component used to physically disconnect a circuit. The control terminal of the relay receives the output signal of the voltage detection circuit;

[0033] Microcontroller: The microcontroller can be used to receive the signal from the voltage detection circuit and the external control signal and decide whether to activate the relay;

[0034] Furthermore, the signal sent by the signal sending component 304 can also be transmitted to the microcontroller, so that the circuit can be opened and closed by the external signal;

[0035] In general, a resistor divider is used to reduce the high voltage to a safe level, and then compared with a reference voltage through a comparator. The comparator output is connected to an input of a microcontroller. The microcontroller receives a signal from the comparator or an external control signal. Based on the status of these signals, the microcontroller decides whether to activate the relay, thereby opening and closing the power circuit.

[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0037] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An energy storage power source arc-proof connection structure, comprising a base (100), a connecting wire (200) and a connecting plug (300), wherein the base (100) is fixedly connected to a battery and electrically connected to the battery, and both ends of the connecting wire (200) are fixedly connected to the connecting plug (300), and two groups of the connecting plugs (300) are respectively plugged into the base (100) of the corresponding battery, thereby realizing the connection of the two groups of batteries, characterized in that: The connecting plug (300) comprises a housing (301), a plug connector (302), a circuit protection module (303) and a signal sending component (304); the circuit protection module (303) is fixedly connected inside the housing (301); the connecting wire (200) is electrically connected to the circuit protection module (303); the end of the housing (301) is fixedly connected to the plug connector (302); the plug connector (302) is electrically connected to the circuit protection module (303); the plug connector (302) ) matches the base (100), the signal sending component (304) is fixedly connected inside the shell (301), the signal sending component (304) is electrically connected to the circuit protection module (303), the shell (301) is provided with a buckle (305) and a button (306) matching the buckle (305), the button (306) corresponds to the sending end of the signal sending component (304), and the base (100) is provided with a card platform (101) matching the buckle (305).

2. The energy storage power source arc-proof connection structure according to claim 1, characterized in that: The housing (301) is fixedly connected with a mounting platform (307) inside, the mounting platform (307) is fixedly connected with the signal sending component (304), the mounting platform (307) is rotatably connected with the buckle (305) in a lever manner, one end of the buckle (305) located at the turning point is an inner arm (308), and the other end of the buckle (305) located at the turning point is an outer arm (309), the end of the inner arm (308) corresponds to the signal sending component (304), and the end of the outer arm (309) is provided with a The card platform (101) is matched with a card tongue (310), a first spring (311) is fixedly connected between the inner arm (308) and the mounting platform (307), one end of a second spring (312) is fixedly connected to the outer arm (309), the other end of the second spring (312) is in contact with the top surface of the outer shell (301), the end of the inner arm (308) is fixedly connected to the button (306), and a downward pressing port (313) is provided on the outer shell (301) corresponding to the button (306).

3. The energy storage power source arc-proof connection structure according to claim 1, characterized in that: The circuit protection module (303) comprises a module housing (314) and a control board (315) located in the module housing (314); one end of the module housing (314) is fixedly connected to an incoming terminal (316), and the other end is fixedly connected to an outgoing terminal (317); the incoming terminal (316) and the outgoing terminal (317) are electrically connected to the control board (315); the connecting wire (200) is electrically connected to the incoming terminal (316); an outgoing port (318) is provided on the plug connector (302), and the outgoing port (318) is plugged into the outgoing terminal (317).

4. The energy storage power source arc-proof connection structure according to claim 3, characterized in that: A signal port (319) is fixedly connected inside the module housing (314), and the signal port (319) is electrically connected to the control board (315). A signal terminal (320) is provided on the signal sending component (304), and the signal terminal (320) is plugged into the signal port (319).

5. The energy storage power source arc-proof connection structure according to claim 3, characterized in that: The control board (315) comprises a PCB board, and a voltage detection circuit and a power switch circuit arranged on the PCB board, the voltage detection circuit is electrically connected to the power switch circuit, and the signal sending component (304) is electrically connected to the power switch circuit.

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