A modular power bank with built-in connector

Abstract

This application belongs to the field of battery technology, specifically relating to a modular power bank with a built-in connector. It includes: a housing and several batteries; a control unit, output terminals, input terminals, a first connector, and a second connector; the housing has an output port, an input port, a first connection port, and a second connection port; the output terminal, input terminal, first connector, and second connector are respectively fixedly disposed within the output port, input port, first connection port, and second connection port and electrically connected to the control unit; the first connector and second connector have the same structure. The modular power bank with a built-in connector provided by this application can not only be used as a standalone power bank, but also meet the different power or capacity requirements of power tools, electric vehicles, and other fields through series, parallel, or series-parallel hybrid connections. Furthermore, by adopting a built-in standard connector, the safety performance of the energy storage module can be improved, and the flexibility of series and parallel connections can be increased.

Description

Technical Field

[0001] This application belongs to the field of battery technology, specifically relating to a modular power bank with a built-in connector. Background Technology

[0002] The series and parallel connectors of existing modular energy storage modules are generally external (at least the male connectors are external). External connectors can save space inside the module and increase the capacity of the energy storage module. However, in actual use, external connectors are prone to safety issues. Furthermore, since energy storage modules are mostly used independently, the pre-configured external connectors may not be needed. Therefore, adopting connectors that can be connected when in use and hidden when not in use is a more reasonable solution. Utility Model Content

[0003] In view of this, this application provides a modular power bank with a built-in connector to solve all or part of the technical problems described in the background section of this application.

[0004] The innovative concepts of this application are as follows: 1. Unlike the existing technology that configures one male and one female connector for the energy storage module, this application configures two identical connectors (both male or both female) for the energy storage module. When series and / or parallel connection is required, a stable electrical and mechanical connection can be quickly established using simple standard parts (such as double-ended plugs or double-ended sleeves); 2. The connector adopts a built-in structure. When series and parallel connection is not required, it is sealed and hidden with a plastic cover, which increases safety and prevents dust from entering the connector; 3. Multiple connectors are configured in different positions of the energy storage module to facilitate various series and parallel connection methods.

[0005] The solution provided in this application to resolve its technical problem is as follows: A modular power bank with an integrated connector includes a housing and several batteries; characterized in that it further includes a control unit, an output terminal, an input terminal, a first connector, and a second connector; an assembly cavity is provided inside the housing, and the control unit and several batteries are assembled inside the assembly cavity; the housing is also provided with an output port, an input port, a first connector, and a second connector; the output terminal, the input terminal, the first connector, and the second connector are respectively fixedly disposed in the output port, the input port, the first connector, and the second connector and electrically connected to the control unit; the first connector and the second connector have the same structure.

[0006] Preferably, the housing is provided with a terminal slot; the output port, input port, first connection port, and second connection port are provided on the bottom of the terminal slot and communicate with the assembly cavity.

[0007] Preferably, both the first connector and the second connector include a terminal plate and a conductive insert; the conductive insert is fixedly disposed on the terminal plate. Further, the conductive insert includes a base plate, a pin portion, and two gripper portions; the pin portion and the gripper portions are integrally formed with the base plate and extend in opposite directions; the two gripper portions are inclined and define an insertion space between them; the insertion space includes a guide section, a clamping section, and a receiving section.

[0008] Preferably, the control unit includes a substrate and a heat source chip; the heat source chip, output terminal, and input terminal are all disposed on the substrate.

[0009] Preferably, the modular power bank with the connector built-in also includes a control button and a display screen; the housing is also provided with a button port and a display port; the control button and the display screen are respectively located in the button port and the display port and are electrically connected to the control unit.

[0010] Preferably, the control unit further includes a button component and an information output component; the control buttons are mechanically connected to the button component, and the display screen is electrically connected to the information output component.

[0011] Preferably, the modular power bank with built-in connectors further includes a third connector and a fourth connector; the first connector and the second connector are respectively located at the front and rear ends of the housing; the third connector and the fourth connector are respectively located on the left and right sides or the top and bottom sides of the housing.

[0012] Preferably, the housing includes an upper housing and a lower housing; the upper housing and the lower housing are fixedly connected; and the aforementioned assembly cavity is defined in the middle.

[0013] Preferably, the modular power bank with a built-in connector also includes several connector caps. Furthermore, the connector caps are detachably mounted on the first connector and the second connector.

[0014] Beneficial technical effects: The modular power bank with built-in connector provided in this application can not only be used as a standalone power bank, but also meet the different power or capacity requirements of power tools, electric vehicles, and other fields through series, parallel, or series-parallel hybrid connections. Furthermore, by adopting a built-in standard connector, the safety performance of the energy storage module can be improved, and the flexibility of series and parallel connections can be enhanced.

[0015] The technical solution and technical effects of this application will be described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0016] Figure 1 : 3D structural diagram of a modular power bank with built-in connector; Figure 2 : Exploded view of the modular power bank component with built-in connector; Figure 3 : Schematic diagram of the conductive insert structure of the modular power bank with built-in connector; Figure 4 : Schematic diagram of a modular power bank with built-in connector connected in series; Figure 5 : Schematic diagram of a modular power bank with built-in connector connected in parallel; Figure 6 : Schematic diagram of a modular power bank with built-in connector in series and parallel connection; Icon description: 1-Shell; 12-Output port, 13-Input port, 14-First connection port, 16-Terminal slot, 17-Button port, 18-Display port, 19-Upper housing, 110-Lower housing; 2-Battery; 3-Control unit, 31-Baseboard, 32-Heat source chip, 33-Button component, 34-Information output component; 4-Output terminals; 5-Input terminals; 6-First connector; 61-Terminal plate; 62-Conductive insert; 621-Base plate; 622-Pin; 623-Claw; 624-Interlocking space; 625-Guide section; 626-Clamping section; 627-Accommodation section; 8-Control buttons; 9-Display screen; 10-Connecting port cover. Detailed Implementation

[0017] Please see Figures 1 to 3 The modular power bank with a built-in connector disclosed in this application includes a housing 1 and several batteries 2.

[0018] The housing 1 includes an upper housing 19 and a lower housing 110; the upper housing 19 and the lower housing 110 are fixedly connected, defining an assembly cavity in the middle for mounting other components or parts. Several batteries 2 are fixedly assembled in the assembly cavity of the housing 1.

[0019] The housing 1 is provided with an output port 12, an input port 13, a button port 17, and a display port 18; the button port 17 and the display port 18 are located on the upper side of the housing 1. The output port 12 and the input port 13 are both located at the front end of the housing 1.

[0020] Terminal slots 16, which connect to the assembly cavity, are provided at both the front and rear ends of the housing 1; a first connection port 14 and a second connection port are provided on the bottom of the terminal slots 16. That is, the first connection port 14 and the second connection port are located at the front and rear ends of the housing 1, respectively.

[0021] The modular power bank with built-in connector also includes a control unit 3, an output terminal 4, an input terminal 5, a first connector 6, and a second connector.

[0022] The control unit 3 is located in the assembly cavity of the housing 1. The output terminal 4, input terminal 5, first connector 6, and second connector are respectively fixedly installed in the output port 12, input port 13, first connector 14, and second connector and are electrically connected to the control unit 3.

[0023] After assembly, the insertion interfaces formed by the first connector 6 and the second connector are both located on the bottom of the terminal slot 16, which is lower than the outer surface of the end face of the housing 1, thus forming a built-in hidden structure. When used alone (i.e., without parallel and / or series connection), the terminal slot 16 can be sealed with the connector cover 10 to improve safety performance and prevent dust from entering the first connector 6 and the second connector.

[0024] Unlike existing modular energy storage modules that typically use male and female connectors that can be plugged into each other, the first connector 6 and the second connector used in this embodiment have the same structure, both being female connectors. When series connection is required, a standard double-ended connector can be used to quickly establish a stable electrical connection.

[0025] Both the first connector 6 and the second connector include a terminal plate 61 and conductive inserts 62; the conductive inserts 62 are fixedly mounted on the terminal plate 61. The number of conductive inserts 62 can be flexibly configured according to the module specifications. In this embodiment, four conductive inserts 62 are used.

[0026] To improve ease of connection, ensure electrical connection stability, and support high-current charging and discharging, this application employs a special conductive insert 62; please refer to... Figure 3 The conductive insert 62 includes a base plate 621, a pin 622, and two gripper portions 623. The pin 622 and the gripper portions 623 are integrally formed with the base plate 621 and extend in opposite directions. The two gripper portions 623 are inclined and define an insertion space 624 between them. The insertion space 624 includes a guide section 625, a clamping section 626, and a receiving section 627.

[0027] The pin portion 622 is fixedly connected to the terminal plate 61, which is electrically connected to the control unit. The guide section 625 defined by the two gripper portions 623 is fixed to the opening of the connection port. When establishing an electrical connection through the double-ended plug, first turn off the control button 8, then insert the double-ended plug from the guide section 625 into the receiving section 627 and secure it firmly by the clamping section 626 to complete the connection.

[0028] The control unit 3 includes a base plate 31 and a heat source chip 32; the heat source chip 32, the output terminal 4, and the input terminal 5 are all disposed on the base plate 31.

[0029] The modular power bank with a built-in connector also includes a control button 8 and a display screen 9; the control button 8 and the display screen 9 are respectively located in the button port 17 and the display port 18 and are electrically connected to the control unit 3.

[0030] The control unit 3 also includes a button component 33 and an information output component 34; the control button 8 is mechanically connected to the button component 33, and the display screen 9 is electrically connected to the information output component 34. The information output component 34 can output battery signals, such as battery status, voltage, current, etc., to the display screen 9; pressing the control button 8 can start and stop the built-in modular power bank of the connector.

[0031] Connection instructions: If the 6 lithium-ion batteries (specification 21700) in the diagram are arranged in 3 parallel and 2 series configurations, and each battery has a full-charge voltage of 3.7 V and a capacity of 3000 mAh, then the specifications of the single-cell module after the 3 parallel and 2 series configurations are: 11.1 V, 6000 mAh.

[0032] according to Figure 4 The specifications of the two modules connected in series are: 22.2 V, 6000 mAh. The capacity of the two modules connected in series is: 22.2 × 6000 mWh = 133.2 Wh.

[0033] In a modified embodiment of this application, a third connector and a fourth connector are further included to facilitate parallel connection between modules. The first connector 6 and the second connector are respectively disposed at the front and rear ends of the housing 1 to facilitate series connection; the third connector and the fourth connector are respectively disposed on the left and right sides or the upper and lower sides of the housing 1 to facilitate parallel connection.

[0034] Please see Figure 5 The specifications of two modules or power banks connected in parallel are: 11.1 V, 12000 mAh; the total capacity after parallel connection is: 11.1 × 12000 mWh = 133.2 Wh. Please refer to [link / reference]. Figure 6 Furthermore, various technical specifications of energy storage modules can be established through series-parallel hybrid schemes according to actual needs.

[0035] The above capacity data represents the theoretical maximum capacity of the series-parallel module. In actual use, the control unit limits the battery's state of charge (SOC) by controlling the charging cutoff voltage, for example, stopping charging at 3.2V to prevent overcharging. This ensures that the actual capacity of the modular power bank with the built-in connector is less than 100 Wh, meeting the aviation carrying standard (100 Wh).

[0036] In a modified embodiment of this application, a modular power bank can also be constructed using a 18650 battery (18 mm in diameter and 65 mm in height). The technical specifications for its series and parallel connection are similar to those of the 21700 and will not be described in detail.

[0037] As described above, the modular power bank with built-in connector provided in this application can not only be used as a standalone power bank, but also meet the different power or capacity requirements of power tools, electric vehicles, and other fields through series, parallel, or series-parallel hybrid connections. Furthermore, by adopting a built-in standard connector, the safety performance of the energy storage module can be improved, and the flexibility of series and parallel connections can be enhanced.

[0038] The technical solutions and effects of this application have been described in detail above with reference to the accompanying drawings and specific embodiments. It should be noted that those skilled in the art can develop other embodiments based on this. Any simple modifications and equivalent substitutions that do not depart from the innovative concept of this application are covered by this application and fall within the protection scope of this patent.

Claims

1. A modular power bank with a built-in connector, comprising a housing (1) and a plurality of batteries (2); characterized in that: It also includes a control unit (3), an output terminal (4), an input terminal (5), a first connector (6), and a second connector (7); An assembly cavity is provided inside the housing (1), and the control unit (3) and several batteries (2) are all assembled inside the assembly cavity; The housing (1) is also provided with an output port (12), an input port (13), a first connection port (14), and a second connection port; The output terminal (4), input terminal (5), first connector (6), and second connector (7) are respectively fixedly disposed in the output port (12), input port (13), first connector (14), and second connector and are electrically connected to the control unit (3). The first connector (6) and the second connector (7) have the same structure; Both the first connector (6) and the second connector (7) include a terminal plate (61) and a conductive insert (62); The conductive insert (62) is fixedly mounted on the terminal block (61); The conductive insert (62) includes a base plate (621), a pin (622), and two gripper parts (623). The pin portion (622) and the claw portion (623) are integrally formed with the base plate portion (621) and extend in opposite directions; Both of the gripper portions (623) are inclined and define an insertion space (624) between them. The insertion space (624) includes a guide section (625), a locking section (626), and a receiving section (627).

2. The modular power bank with built-in connector as described in claim 1, characterized in that: The housing (1) is provided with a terminal slot (16); The output port (12), input port (13), first connection port (14), and second connection port are located on the bottom of the terminal slot (16) and are connected to the assembly cavity.

3. The modular power bank with built-in connector as described in claim 1, characterized in that: The control unit (3) includes a substrate (31) and a heat source chip (32); the heat source chip (32), the output terminal (4), and the input terminal (5) are all disposed on the substrate (31).

4. The modular power bank with built-in connector as described in claim 1, characterized in that: The connector-built modular power bank also includes a control button (8) and a display screen (9). The housing (1) is also provided with a button port (17) and a display port (18); The control button (8) and the display screen (9) are respectively located in the button port (17) and the display port (18) and are electrically connected to the control unit (3).

5. The modular power bank with built-in connector as described in claim 4, characterized in that: The control unit (3) also includes a button component (33) and an information output component (34); The control button (8) is mechanically connected to the button component (33), and the display screen (9) is electrically connected to the information output component (34).

6. The modular power bank with built-in connector as described in claim 1, characterized in that: The modular power bank with built-in connectors also includes a third connector and a fourth connector. The first connector (6) and the second connector (7) are respectively disposed at the front and rear ends of the housing (1); The third connector and the fourth connector are respectively located on the left and right sides or the upper and lower sides of the housing (1).

7. The modular power bank with built-in connector as described in claim 1, characterized in that: The housing (1) includes an upper housing (19) and a lower housing (110). The upper shell (19) and the lower shell (110) are fixedly connected.

8. The modular power bank with built-in connector as described in claim 1, characterized in that: The modular power bank with built-in connector also includes several connector caps (10).

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