A charger with a storage battery

Abstract

This utility model discloses a charger with a storage battery, which includes a charger body and a mounting housing. The storage battery is installed in the lower part of the mounting housing, a battery management unit is installed on the upper part of the storage battery, and a charging control unit is installed on the upper part of the battery management unit. An input connector is installed at the front end of the mounting housing, and an output unit is installed at the rear end of the mounting housing. By switching the control module and the charging control unit in coordination, bidirectional energy management between the external power supply and the storage battery can be realized. When the external power supply is connected, it can directly power the electronic product and charge the storage battery simultaneously. When the power is off, it automatically switches to power supply from the storage battery. It can also charge the storage battery independently. It has the characteristics of uninterrupted power supply, dual-path operation and multi-path energy management. Combined with a safety protection module, it prevents overcharging, over-discharging, overcurrent and short circuit, improving the applicability and safety of the device in outdoor, emergency and mobile scenarios.

Description

Technical Field

[0001] This utility model belongs to the field of electronic equipment technology, and specifically relates to a charger with a storage battery. Background Technology

[0002] With the widespread use of smartphones, tablets, laptops, and various mobile electronic devices, people's demand for power supply to mobile devices is increasing, especially in outdoor, emergency, or long-distance travel scenarios, such as wilderness travel, outdoor work, power outages, and long business trips. Achieving continuous and stable power supply has become a pressing issue. Existing chargers typically rely on external AC power or vehicle power for direct power supply. When the external power source is disconnected or unavailable, electronic devices cannot continue to receive power, causing them to malfunction and severely impacting user experience and work efficiency.

[0003] To address the issue of mobile power supply, portable energy storage devices such as power banks have become widely used. These devices can provide temporary power to electronic products when the external power source is disconnected, alleviating power supply problems when traveling or in emergency situations.

[0004] However, existing power banks and chargers are scattered and inconvenient to carry during use. Traditional chargers and power banks need to be carried separately, taking up more space and increasing the burden on users. When going out, users not only need to carry the charger itself, but also the power adapter, cable, and power bank. This is especially inconvenient when traveling for long periods or in outdoor environments, as carrying multiple independent devices is particularly difficult.

[0005] Therefore, overcoming the shortcomings of the existing technology is an urgent problem to be solved in this technical field. Utility Model Content

[0006] In view of the technical problems mentioned in the background art, the purpose of this utility model is to provide a charger with a storage battery to solve the technical problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a charger with a storage battery, comprising a charger body, the charger body including a mounting housing, a storage battery mounted in the lower part of the mounting housing, a battery management unit mounted on the upper part of the storage battery, a charging control unit mounted on the upper part of the battery management unit, an input connector mounted on the front end of the mounting housing, and an output unit mounted on the rear end of the mounting housing. The charging control unit is electrically connected to the battery management unit, the storage battery, the input connector, and the output unit.

[0008] Furthermore, the battery management unit is equipped with a switching control module, which is electrically connected to the storage battery, the charging control unit and the output unit respectively, and is used to automatically switch between external power supply mode, storage battery charging mode and storage battery discharging mode. The switching control module includes a main control unit, a first power switch array, a second power switch array, a third power switch array, a drive circuit and a voltage and current detection circuit.

[0009] Furthermore, the battery management unit is also equipped with a safety protection module. This safety protection module establishes electrical connections and signal interactions with the storage battery, the switching control module, the charging control unit, and the output unit, respectively, to provide multiple hardware and software level protections for the storage battery and the entire power supply system. The safety protection module includes an overvoltage protection circuit, an undervoltage protection circuit, an overcurrent protection circuit, a short circuit protection circuit, a temperature protection unit, and a protection control circuit.

[0010] Furthermore, the charging control unit includes an input power conditioning circuit, a DC-DC conversion module, a charging management chip, a constant current control circuit, a constant voltage control circuit, and a temperature compensation unit.

[0011] Furthermore, the upper end of the mounting housing is covered with a housing cover plate, one end of the charging control unit is equipped with a power display module, and one end of the housing cover plate is provided with a display panel, which is correspondingly positioned with the power display module.

[0012] Furthermore, the rear end of the charging control unit is provided with an expansion port, and the rear surface of the mounting housing is provided with a through hole that matches the size of the expansion port, and the end of the expansion port is connected to the through hole.

[0013] Furthermore, the lower inner part of the mounting housing is provided with a battery mounting position, in which the storage battery is installed. The battery management unit is fixed to the upper part of the storage battery by welding, so that a stable electrical and mechanical connection is formed between the battery management unit and the storage battery. The surface edge of the battery management unit is evenly provided with a number of fixing posts, and the surface edge of the charging control unit is evenly provided with a number of fixing holes. The number of fixing holes corresponds one-to-one with the number of fixing posts, and is connected and fixed by fasteners passing through the fixing holes and fixing posts, so that the storage battery, the battery management unit and the charging control unit are respectively installed inside the mounting housing.

[0014] Furthermore, the upper front end of the mounting housing is provided with a connector mounting position, the input connector is snapped into the connector mounting position, the inner edge of the connector mounting position is provided with a positioning protrusion, the outer edge of the input connector is provided with a positioning groove, and the positioning protrusion is positioned and embedded in the positioning groove.

[0015] Furthermore, the rear end of the mounting housing is provided with an output interface, and the rear end of the output unit is provided with an output connector, which is snapped into the output interface, thereby fixing the output unit to the rear end of the mounting housing.

[0016] Furthermore, the upper end of the mounting housing is recessed with a sealing groove, in which a sealing strip is embedded. The sealing strip is positioned between the mounting housing and the housing cover. The lower edge of the housing cover has a protruding edge, and the outer side of the protruding edge has several fixing buckles. The upper inner side of the mounting housing has several fixing positions recessed. The protruding edge of the cover is embedded in the upper inner part of the mounting housing. At the same time, the fixing buckles and the fixing positions are connected in a one-to-one manner, thereby fixing the housing cover onto the upper end of the mounting housing.

[0017] The present invention has the following advantages: The charger body includes a mounting housing, a storage battery is installed in the lower part of the mounting housing, a battery management unit is installed on the upper part of the storage battery, a charging control unit is installed on the upper part of the battery management unit, an input connector is installed at the front end of the mounting housing, and an output unit is installed at the rear end of the mounting housing. The charging control unit is electrically connected to the battery management unit, the storage battery, the input connector, and the output unit. A switching control module and a safety protection module are installed on the battery management unit. The charging control unit includes an input power conditioning circuit and a DC-DC conversion module. The charger, comprising a battery storage unit, a charging management chip, a constant current control circuit, a constant voltage control circuit, and a temperature compensation unit, achieves bidirectional energy management between the external power supply and the battery storage unit through the coordination of the switching control module and the charging control unit. When the external power supply is connected, it can directly power electronic products and simultaneously charge the battery storage unit. When the power is off, it automatically switches to battery power supply, and can also charge the battery storage unit independently. It features uninterrupted power supply, dual-path operation, and multi-path energy management. Combined with a safety protection module, it prevents overcharging, over-discharging, overcurrent, and short circuits, improving the applicability and safety of the device in outdoor, emergency, and mobile scenarios. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the overall exploded structure of this utility model.

[0020] Figure 3 This is an exploded view of the storage battery, battery management unit, and charging control unit of this utility model.

[0021] Figure 4 This is a schematic diagram of the mounting housing structure of this utility model.

[0022] Figure 5 This is a schematic diagram of the overall rear structure of this utility model.

[0023] Figure 6 This is a schematic diagram of the module connection structure between the storage battery, battery management unit, charging control unit, input connector, and output unit of this utility model.

[0024] Figure 7 This is a schematic diagram of the module connection structure between the battery management unit, switching control module and safety protection module of this utility model.

[0025] Figure 8 This is a schematic diagram of the connection structure of the charging control unit module of this utility model.

[0026] Reference numerals: Charger body 1; Mounting housing 10; Storage battery 20; Battery management unit 30; Charging control unit 40; Input connector 50; Output unit 60; Switching control module 31; Main control unit 311; First power switch array 312; Second power switch array 313; Third power switch array 314; Drive circuit 315; Voltage and current detection circuit 316; Safety protection module 32; Overvoltage protection circuit 321; Undervoltage protection circuit 322; Overcurrent protection circuit 323; Short circuit protection circuit 324; Temperature protection unit 325; Protection control circuit 326; Input power conditioning circuit 41; DC-DC conversion module 42; Charging management chip 43; Constant current control circuit 44; Constant voltage control circuit 45; Temperature compensation unit 46; Housing cover 70; Power display module 47; Display panel 71; Expansion port 48; Port through hole 11; Battery mounting position 12; Fixing through post 33; Fixing through hole 49; Connector mounting position 13; Positioning protrusion 131; Positioning groove 51; Output interface 14; Output connector 61; Sealing groove 15; Sealing strip 16; Cover protrusion 72; Fixing buckle 721; Fixing buckle 17. Detailed Implementation

[0027] like Figures 1 to 8As shown, a charger with a storage battery includes a charger body 1, which includes a mounting housing 10. A storage battery 20 is mounted in the lower part of the mounting housing 10. A battery management unit 30 is mounted on the upper part of the storage battery 20 for monitoring the voltage, current, and temperature of the storage battery 20 and providing overcharge, over-discharge, and overcurrent protection. A charging control unit 40 is mounted on the upper part of the battery management unit 30 for controlling the charging and discharging process of the storage battery 20 and switching control with the input and output circuits. An input connector 50 is mounted on the front end of the mounting housing 10 for connecting an external power source and introducing it into the charging control unit 40. An output unit 60 is mounted on the rear end of the mounting housing 10. Used to supply power to external electronic devices, the charging control unit 40 is electrically connected to the battery management unit 30, the storage battery 20, the input connector 50, and the output unit 60. In use, when the input connector 50 is connected to an external power source, the external power is input to the charging control unit 40 through a rectification and voltage regulation circuit. The charging control unit 40 then distributes the power to the storage battery 20 and the output unit 60, enabling simultaneous charging and use. When the storage battery 20 needs to be charged, the charging control unit 40 performs constant current and constant voltage charging to the storage battery 20 through the battery management unit 30. When the external power source is disconnected, the storage battery 20 supplies power to the output unit 60 through the battery management unit 30 to charge the electronic product.

[0028] In practical implementation, the battery management unit 30 is equipped with a switching control module 31, which is electrically connected to the storage battery 20, the charging control unit 40 and the output unit 60, respectively, and is used to automatically switch between external power supply mode, storage battery charging mode and storage battery discharging mode. The switching control module 31 includes a main control unit 311, a first power switch array 312, a second power switch array 313, a third power switch array 314, a drive circuit 315 and a voltage and current detection circuit 316. The power switch array is a back-to-back MOSFET structure and is used in conjunction with an ideal diode controller to suppress reverse current. When the input connector 50 is connected to an external power source, the switching control module 31 determines that the external power source is valid based on the input voltage detection and fast charging handshake status. It then controls the first power switch array 312 in the power path to conduct, allowing the external power source to prioritize powering the electronic product via the charging control unit 40 and the direct-connection network. Simultaneously, it controls the second power switch array 313 to conduct, enabling the external power source to charge the battery 20 via the charging control unit 40 in a constant current / constant voltage manner, achieving simultaneous charging and use. During this process, the switching control module 31 dynamically adjusts the charging current to the battery 20 based on the difference between the output load power and the adapter's capacity to prevent adapter overload. When an external power supply is detected to be disconnected or below a threshold, the switching control module 31 controls the first power switch array 312 to turn off, preventing reverse current from flowing into the external port. Simultaneously, it controls the third power switch array 314 to turn on, allowing the battery 20 to supply power to the output unit 60 via a buck-boost converter and protection link. To prevent jitter, the switching control module 31 sets a de-jitter delay and voltage hysteresis threshold for input disconnection, ensuring stable mode switching without interruptions. On the parallel paths of the external power supply and the battery, the switching control module 31 uses back-to-back MOSFETs or ideal diode controllers to implement a power-OR operation, thereby blocking reverse current when either source disconnects, ensuring that the two power supplies do not interfere with each other. Simultaneously, in conjunction with the voltage and current detection circuit 316, it monitors the source-side and load-side currents in real time, achieving rapid overcurrent shutdown.

[0029] In practical implementation, the battery management unit 30 is equipped with a safety protection module 32. This safety protection module 32 establishes electrical connections and signal interactions with the storage battery 20, the switching control module 31, the charging control unit 40, and the output unit 60, respectively, to provide multiple hardware and software level protections for the storage battery and the entire power supply system. The safety protection module 32 includes: an overvoltage protection circuit 321, used to detect the battery terminal voltage and the input power supply voltage. When the detected value exceeds a preset upper limit, it promptly cuts off the charging circuit or output circuit to prevent overcharging of the battery cells. An undervoltage protection circuit 322, used to monitor the battery terminal voltage. When the voltage is lower than a set threshold, it issues an undervoltage shutdown command to prevent over-discharge damage to the battery. An overcurrent protection circuit 323, including discharge overcurrent protection and charging overcurrent protection, obtains the current value through a current sampling resistor or Hall sensor in the detection circuit. When the current exceeds the rated value, it quickly shuts off the power switch to protect the circuit and battery safety. The short-circuit protection circuit 324 shuts down the output switch array within 10–50 microseconds when a sharp drop in output impedance is detected and the current instantaneously exceeds the short-circuit threshold, preventing damage to the devices from high current. The temperature protection unit 325, with a built-in NTC / PTC temperature sensor located on the battery surface and near the power devices, issues a shutdown or derating command when the temperature exceeds a preset upper limit (e.g., 90–100°C). The reverse connection and reverse discharge protection circuit prevents damage caused by reverse polarity connection when external power or electronic products are connected, and prevents reverse discharge from the battery to the input port. The protection control circuit 326 includes a dual control path of an independent hardware comparator and a microcontroller unit; in abnormal situations, the hardware protection path can directly disconnect the power switch. During normal operation, the safety protection module 32 continuously collects voltage, current, and temperature signals. Once any parameter is detected to exceed the safe range, the protection module immediately issues a shutdown command to the switching control module 31 via the hardware control line, or directly controls the power switch array to disconnect the circuit.

[0030] In practical implementation, the charging control unit 40 includes an input power conditioning circuit 41, a DC-DC conversion module 42, a charging management chip 43, a constant current control circuit 44, a constant voltage control circuit 45, and a temperature compensation unit 46. During operation, the input power conditioning circuit 41 filters, stabilizes, and suppresses surges in the power supplied by the external input interface 50 module, ensuring stable input power quality. It includes components such as an EMI filter, a TVS transient suppression diode, and an input capacitor array. The DC-DC conversion module 42 converts the input voltage into a constant current and constant voltage power supply suitable for battery charging, supporting buck, buck-boost, or full-bridge topologies to adapt to different input power ranges. The charging management chip 43 uses a dedicated lithium battery charging IC or a programmable MCU control algorithm to achieve multi-stage charging (pre-charging → constant current charging → constant voltage charging → float charging / maintenance charging). It can automatically adjust the charging current and voltage according to the battery's voltage and temperature status. The constant current control circuit 44, based on a precision current sampling resistor and an operational amplifier / ADC, controls the current during charging to prevent overcurrent charging from causing battery overheating or shortening its lifespan. The constant voltage control circuit 45 adjusts the output voltage through a comparator and feedback loop to maintain it at a set value during the constant voltage phase, preventing overcharging. The temperature compensation unit 46 reads the battery's temperature sensor signal and automatically adjusts the charging current or pauses charging in low or high temperature environments to ensure safety. When an external power source is connected, the input power conditioning circuit 41 first filters and regulates the power supply; the DC-DC conversion module 42 adjusts the voltage to the range required by the battery; the charging management chip 43 controls the constant current control circuit 44 and the constant voltage control circuit 45 to switch operating modes according to the battery's real-time parameters; the temperature compensation unit 46 adjusts or pauses charging in extreme temperatures; the entire process is monitored in real time by the safety protection module 32, which immediately disconnects the circuit if an abnormality occurs.

[0031] In practical implementation, the upper end of the mounting housing 10 is fitted with a housing cover plate 70, and a power display module 47 is mounted on one end of the charging control unit 40. One end of the housing cover plate 70 has a transparent or semi-transparent display panel 71, which is correspondingly positioned to the power display module 47, allowing the power display information to be clearly visible. During use, when an external power source is connected and charging the electronic product and the battery, the power display module 47 displays the current battery power in real time through the display panel 71.

[0032] In practical implementation, the rear end of the charging control unit 40 is provided with an expansion port 48, and the rear surface of the mounting housing 10 is provided with a through hole 11 that matches the size of the expansion port 48. The end of the expansion port 48 is connected to the through hole 11. The expansion port 48 can be a USB-A, USB-C, DC jack, or Type-CPD interface to achieve the following functions: extended charging output, providing additional charging channels for more electronic products outside of the output unit 60; external energy storage expansion, allowing external extended battery packs to work in parallel with the local battery. This extends the power supply time. In bidirectional power supply mode, the expansion port 48 can be used as an input port to charge the built-in battery from an external energy storage device or power adapter when needed. During use, users can connect external electronic products or external energy storage batteries through the expansion port 48. When external power is input through the expansion port 48, the switching control module 31 automatically recognizes and switches to external power supply mode, simultaneously powering both the battery 20 and the electronic products. When the external power is disconnected, the expansion port 48 can serve as an additional output port, with the battery 20 powering the connected devices. The expansion port 48 enhances the charger's compatibility, expandability, and versatility, making it suitable for scenarios requiring simultaneous charging of multiple devices or long-term outdoor power supply.

[0033] In practical implementation, the lower inner part of the mounting housing 10 is provided with a battery mounting position 12, in which the storage battery 20 is installed. The battery management unit 30 is fixed to the upper part of the storage battery 20 by welding, so that the battery management unit 30 and the storage battery 20 form a stable electrical and mechanical connection, which facilitates real-time monitoring and management of the charging and discharging status of the storage battery. The surface edge of the battery management unit 30 is evenly provided with a plurality of fixing through posts 33, and the surface edge of the charging control unit 40 is evenly provided with a plurality of fixing through holes 49. The plurality of fixing through holes 49 correspond one-to-one with the plurality of fixing through posts 33, and are connected and fixed by fasteners passing through the fixing through holes 49 and fixing through posts 33. Thus, the storage battery 20, the battery management unit 30 and the charging control unit 40 are respectively installed inside the mounting housing 10, which not only facilitates production assembly and maintenance replacement, but also ensures the reliability of electrical connections and shock resistance.

[0034] In practical implementation, the upper front end of the mounting housing 10 is provided with a connector mounting position 13, and the input connector 50 is snapped into the connector mounting position 13. The inner edge of the connector mounting position 13 is provided with a positioning protrusion 131, and the outer edge of the input connector 50 is provided with a positioning groove 51. The positioning protrusion 131 is positioned and embedded in the positioning groove 51, thereby making the input connector 50 stably snapped into the connector mounting position 13. This not only restricts the radial and axial displacement of the input connector 50, but also prevents the connector from loosening or rotating during the plugging and unplugging of the power cord.

[0035] In practice, the rear end of the mounting housing 10 is provided with an output interface 14, and the rear end of the output unit 60 is provided with an output connector 61. The output connector 61 is snapped into the output interface 14, thereby fixing the output unit 60 to the rear end of the mounting housing 10.

[0036] In practical implementation, the upper end of the mounting housing 10 is recessed with a sealing groove 15, and a sealing strip 16 is embedded in the sealing groove 15. The sealing strip 16 is positioned between the mounting housing 10 and the housing cover plate 70. The lower edge of the housing cover plate 70 is provided with a cover plate protrusion edge 72, and the outer side of the cover plate protrusion edge 72 is provided with several fixing buckles 721. The upper inner side of the mounting housing 10 is recessed with several fixing fasteners 17. The cover plate protrusion edge 72 is embedded in the upper inner part of the mounting housing 10. At the same time, the several fixing buckles 721 and the several fixing fasteners 17 are connected in a one-to-one fastening manner, so that the housing cover plate 70 is fixedly installed on the upper end of the mounting housing 10. In use, the housing cover plate 70 not only serves to prevent dust, water, and impact, but also allows users to quickly open or close the housing during disassembly and maintenance, realizing modular maintenance and upgrades. Meanwhile, the sealing strip 16 can be made of silicone or rubber materials with excellent high temperature resistance, aging resistance, and compression set resistance to ensure sealing performance during long-term use.

[0037] In summary, the charger body 1 includes a mounting housing 10, a storage battery 20 is mounted in the lower part of the mounting housing 10, a battery management unit 30 is mounted on the upper part of the storage battery 20, a charging control unit 40 is mounted on the upper part of the battery management unit 30, an input connector 50 is mounted on the front end of the mounting housing 10, and an output unit 60 is mounted on the rear end of the mounting housing 10. The charging control unit 40 is electrically connected to the battery management unit 30, the storage battery 20, the input connector 50, and the output unit 60. A switching control module 31 and a safety protection module 32 are mounted on the battery management unit 30. The charging control unit 40 includes an input power conditioning circuit. 41. DC-DC conversion module; 42. Charging management chip; 43. Constant current control circuit; 44. Constant voltage control circuit; 45. Temperature compensation unit; 46. This utility model's charger with a storage battery achieves bidirectional energy management between external power supply and storage battery through the coordination of the switching control module and the charging control unit. When the external power supply is connected, it can directly power electronic products and charge the storage battery simultaneously. When the power is off, it automatically switches to power supply from the storage battery, and can also charge the storage battery independently. It features uninterrupted power supply, dual-path operation, and multi-path energy management. Combined with a safety protection module, it prevents overcharging, over-discharging, overcurrent, and short circuits, improving the applicability and safety of the equipment in outdoor, emergency, and mobile scenarios.

Claims

1. A charger with a storage battery, characterized in that, It includes a charger body (1), which includes a mounting housing (10). A storage battery (20) is installed in the lower part of the mounting housing (10). A battery management unit (30) is installed on the upper part of the storage battery (20). A charging control unit (40) is installed on the upper part of the battery management unit (30). An input connector (50) is installed at the front end of the mounting housing (10). An output unit (60) is installed at the rear end of the mounting housing (10). The charging control unit (40) is electrically connected to the battery management unit (30), the storage battery (20), the input connector (50), and the output unit (60).

2. The charger with a storage battery according to claim 1, characterized in that, The battery management unit (30) is provided with a switching control module (31), which is electrically connected to the storage battery (20), the charging control unit (40) and the output unit (60) respectively, and is used to automatically switch between external power supply mode, storage battery charging mode and storage battery discharging mode. The switching control module (31) includes a main control unit (311), a first power switch array (312), a second power switch array (313), a third power switch array (314), a drive circuit (315) and a voltage and current detection circuit (316).

3. The charger with a storage battery according to claim 2, characterized in that, The battery management unit (30) is also equipped with a safety protection module (32). The safety protection module (32) establishes electrical connections and signal interactions with the storage battery (20), the switching control module (31), the charging control unit (40), and the output unit (60) respectively, and provides multiple hardware and software level protections for the storage battery and the entire power supply system. The safety protection module (32) includes an overvoltage protection circuit (321), an undervoltage protection circuit (322), an overcurrent protection circuit (323), a short circuit protection circuit (324), a temperature protection unit (325), and a protection control circuit (326).

4. The charger with a storage battery according to claim 3, characterized in that, The charging control unit (40) includes an input power conditioning circuit (41), a DC-DC conversion module (42), a charging management chip (43), a constant current control circuit (44), a constant voltage control circuit (45), and a temperature compensation unit (46).

5. The charger with a storage battery according to claim 4, characterized in that, The upper end of the mounting housing (10) is covered with a housing cover plate (70), and one end of the charging control unit (40) is equipped with a power display module (47). One end of the housing cover plate (70) is provided with a display panel (71), and the display panel (71) is correspondingly arranged with the power display module (47).

6. The charger with a storage battery according to claim 5, characterized in that, The charging control unit (40) has an expansion port (48) at its rear end. The rear surface of the mounting housing (10) has a through hole (11) that matches the size of the expansion port (48). The end of the expansion port (48) is connected to the through hole (11).

7. The charger with a storage battery according to claim 1, characterized in that, The lower part of the mounting housing (10) is provided with a battery mounting position (12), the storage battery (20) is installed in the battery mounting position (12), and the battery management unit (30) is fixed to the upper part of the storage battery (20) by welding, so that the battery management unit (30) and the storage battery (20) form a stable electrical and mechanical connection. The surface edge of the battery management unit (30) is evenly provided with a number of fixing through posts (33), and the surface edge of the charging control unit (40) is evenly provided with a number of fixing holes (49). The number of fixing holes (49) and the number of fixing through posts (33) correspond one to one, and are connected and fixed by fasteners passing through the fixing holes (49) and fixing through posts (33), so that the storage battery (20), the battery management unit (30) and the charging control unit (40) are respectively installed inside the mounting housing (10).

8. The charger with a storage battery according to claim 1, characterized in that, The upper front end of the mounting housing (10) is provided with a connector mounting position (13), the input connector (50) is snapped in the connector mounting position (13), the inner edge of the connector mounting position (13) is provided with a positioning protrusion (131), the outer edge of the input connector (50) is provided with a positioning groove (51), and the positioning protrusion (131) is positioned and embedded in the positioning groove (51).

9. The charger with a storage battery according to claim 1, characterized in that, The rear end of the mounting housing (10) is provided with an output interface (14), and the rear end of the output unit (60) is provided with an output connector (61). The output connector (61) is snapped into the output interface (14), thereby fixing the output unit (60) to the rear end of the mounting housing (10).

10. The charger with a storage battery according to claim 5, characterized in that, The upper end of the mounting housing (10) is recessed with a sealing groove (15), and a sealing strip (16) is embedded in the sealing groove (15). The sealing strip (16) is located between the mounting housing (10) and the housing cover plate (70). The lower edge of the housing cover plate (70) is provided with a cover plate protrusion edge (72). The outer side of the cover plate protrusion edge (72) is provided with a plurality of fixing buckles (721). The upper inner side of the mounting housing (10) is recessed with a plurality of fixing buckles (17). The cover plate protrusion edge (72) is embedded in the upper inner part of the mounting housing (10). At the same time, the plurality of fixing buckles (721) and the plurality of fixing buckles (17) are connected in a corresponding manner, so that the housing cover plate (70) is fixedly mounted on the upper end of the mounting housing (10).

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