Power supply device

Abstract

The application provides a power supply device. It comprises: a shell with opposite first and second ends; an electric core arranged in the shell; a main control circuit board arranged in the shell and located at the first end, the electric core being electrically connected with the main control circuit board; a positive electrode terminal and a negative electrode terminal, both arranged at the first end and both having an inner end electrically connected with the main control circuit board and an outer end exposed outside the shell; the main control circuit board outputs the electric energy of the electric core to the outside at a first voltage through the positive electrode terminal and the negative electrode terminal. Thus arranged, the power supply device can be conveniently carried and used.

Description

Technical Field

[0001] This application relates to the field of power supply technology, and in particular to a portable power supply device. Background Technology

[0002] In recent years, with the rapid development of smart terminals, portable devices, emergency tools, and outdoor equipment, the demand for portable power supply devices has been increasing. In scenarios such as mobile operations, outdoor adventures, scientific research experiments, emergency rescue, and industrial inspections, it is often impossible to rely on a fixed power source. In these situations, portable power supplies, as independent power modules, become a crucial means of ensuring power supply. Therefore, there is an urgent need for a portable and easy-to-use power supply device to meet the power supply needs of diverse application scenarios. Utility Model Content

[0003] The purpose of this application is to provide a power supply device that transmits power to the outside by placing both the positive and negative terminals at the same end of the battery cell, thereby facilitating the portability and use of the power supply device.

[0004] To achieve the above-mentioned objectives, one embodiment of this application provides a power supply device, including a battery unit, wherein the battery unit comprises:

[0005] A housing having opposing first and second ends;

[0006] The battery cell is disposed within the housing;

[0007] A main control circuit board is disposed inside the housing and located at the first end, and the battery cell is electrically connected to the main control circuit board.

[0008] Both the positive and negative terminals are located at the first end, and both have an inner end that is electrically connected to the main control circuit board and an outer end that is exposed outside the housing.

[0009] The main control circuit board outputs the electrical energy of the battery cell to the outside at a first voltage through the positive and negative terminals.

[0010] In one embodiment of this application, the power supply device includes a battery compartment, the battery compartment comprising:

[0011] The cover has an internal cavity and a mounting cavity, and the battery unit is detachably installed in the mounting cavity, and two battery units can be installed in the mounting cavity;

[0012] A battery compartment circuit board is disposed within the accommodating cavity;

[0013] The output end has one end electrically connected to the battery compartment circuit board, and the other end exposed outside the cover.

[0014] A connector that is electrically connected to the battery compartment circuit board and extends into the mounting cavity to be electrically connected to the battery cell;

[0015] The battery compartment circuit board is used to output the electrical energy of the battery cell through the output terminal at a second voltage, wherein the second voltage is greater than the first voltage.

[0016] In one embodiment of this application, the battery unit further includes a USB interface disposed at the first end. One end of the USB interface is electrically connected to the main control circuit board, and the other end is exposed outside the housing. The main control circuit board is used to control the charging and discharging of the battery cell through the USB interface with a third voltage. The USB interface is a Type-C interface, and the third voltage is greater than the first voltage, and the third voltage is 5V.

[0017] In one embodiment of this application, the battery unit further includes a signal terminal disposed at the first end, the signal terminal having an inner end electrically connected to the main control circuit board and an outer end exposed outside the housing, and the battery compartment includes a connector corresponding to each of the two battery units, the connector including:

[0018] A main body plate is disposed between the receiving cavity and the mounting cavity;

[0019] A metal terminal is inserted through the main body plate. One end of the metal terminal is electrically connected to the battery compartment circuit board, and the other end extends into the mounting cavity in the form of a spring clip. The connector includes three metal terminals, which are connected to the outer ends of the positive terminal, the negative terminal, and the signal terminal of the battery unit.

[0020] In one embodiment of this application, the battery unit further includes a bracket disposed on the inner side of the first end, the bracket being integrally injection molded from flame-retardant nylon, and the bracket comprising:

[0021] The main body is annular and has slots for engaging the positive terminal, the negative terminal, and the signal terminal.

[0022] The gripper extends from the main body toward the main control circuit board and is used to clamp the edge of the main control circuit board.

[0023] In one embodiment of this application, the positive terminal and the negative terminal are opposite to each other, the battery cell is cylindrical, the housing is cylindrical, the housing includes a first housing and a second housing that are snapped together, one end of the battery cell is provided with a positive terminal, and the other end is provided with a negative terminal, and the positive and negative terminals of the battery cell are respectively electrically connected to the main control circuit board.

[0024] In one embodiment of this application, the battery cell further includes:

[0025] A lamp circuit board is disposed at the second end. The lamp circuit board is electrically connected to the main control circuit board. The lamp circuit board is provided with a battery unit button circuit.

[0026] The battery unit light-emitting element is electrically connected to the lamp circuit board.

[0027] A light guide for the battery cell is disposed between the light-emitting element of the battery cell and the housing, and is used to guide the light from the light-emitting element of the battery cell to the outside of the housing;

[0028] A battery unit button is disposed at the second end, and the battery unit button is at least partially exposed outside the housing. When the battery unit button is pressed, the battery unit button circuit is triggered.

[0029] The light circuit board is used to control the light-emitting element of the battery cell to emit light when the button circuit is triggered, and to indicate the power status of the battery cell by the light-emitting color of the light-emitting element of the battery cell.

[0030] In one embodiment of this application, the cover is formed with a receiving opening and a receiving groove, and the receiving opening communicates with the mounting cavity;

[0031] The battery compartment also includes:

[0032] A snap fastener is provided at the receiving opening;

[0033] A sliding cover is mounted on the housing, the sliding cover at least covering the receiving opening and the receiving groove, the sliding cover including a slide rail and an abutment portion disposed in the receiving groove, the slide rail slidingly engaging with the snap fastener, the slide rail including a clearance portion and a protrusion portion, the protrusion portion protruding towards the mounting cavity relative to the clearance portion, the sliding cover including a snap-fit ​​position and a non-snap-fit ​​position, when the sliding cover is in the snap-fit ​​position, the protrusion portion engaging with the snap fastener to allow the snap fastener to extend into the mounting cavity, when the snap fastener is in the non-snap-fit ​​position, the clearance portion engaging with the snap fastener to allow the snap fastener to retract from the mounting cavity;

[0034] An elastic element is disposed in the receiving groove and abuts against the abutting portion. The elastic element is used to automatically reset the sliding cover from the non-clamping position to the clamping position.

[0035] The housing has a slot that engages with the buckle.

[0036] In one embodiment of this application, the battery compartment circuit board is provided with a battery compartment button circuit, and the battery compartment further includes:

[0037] Multiple battery compartment light-emitting elements are electrically connected to the battery compartment circuit board;

[0038] A light guide for the battery compartment is disposed between the light-emitting element of the battery compartment and the cover, and is used to guide the light from the light-emitting element of the battery compartment to the outside of the cover;

[0039] A battery compartment button, at least partially exposed outside the cover, triggers the battery compartment button circuit when the battery compartment button is pressed.

[0040] The battery compartment circuit board is used to control the battery compartment light-emitting element to emit light when the button circuit is triggered, and to indicate the power status of the battery cell in the battery compartment by the number of lights emitted by the battery compartment light-emitting element.

[0041] In one embodiment of this application, the battery compartment housing includes a first cover and a second cover disposed opposite to each other. The first cover and the second cover are connected by a snap-fit ​​structure and / or fasteners. The output terminal is a DC output terminal. The second end of the battery cell is exposed outside the battery compartment. The first voltage is 4V and the second voltage is 8V.

[0042] Compared with the prior art, this application transfers power outward by placing both the positive and negative terminals at the same end of the battery cell housing. The advantage of this is that it facilitates the carrying and use of the power supply device. Attached Figure Description

[0043] The specific embodiments of this application will be further described in detail below with reference to the accompanying drawings, wherein:

[0044] Figure 1 This is a schematic diagram of the power supply device according to one embodiment of this application;

[0045] Figure 2 yes Figure 1 A schematic diagram of the structure of the battery cell;

[0046] Figure 3 yes Figure 2 Exploded view of the middle battery cell;

[0047] Figure 4 yes Figure 1 A schematic diagram of the structure of the battery compartment;

[0048] Figure 5 yes Figure 4 Cross-sectional view of the battery compartment;

[0049] Figure 6 yes Figure 4 Exploded view of the central battery compartment;

[0050] Figure 7 yes Figure 4 A schematic diagram of the battery compartment after removing the sliding cover;

[0051] Figure 8 yes Figure 4 A schematic diagram of the middle sliding cover.

[0052] Among them, 100 is the battery unit; 101 is the housing; 1011 is the first end; 1012 is the second end; 1013 is the first housing; 1014 is the second housing; 1015 is the card slot; 102 is the battery cell; 103 is the main control circuit board; 104 is the positive terminal; 105 is the negative terminal; 106 is the signal terminal; 107 is the USB interface; 108 is the bracket; 1081 is the limiting groove; 1082 is the claw; 1083 is the main body; 109 is the lamp circuit board; 120 is the battery unit light guide; 121 is the battery unit button; 122 is the cover; and 200 is the battery compartment. ; 201, Cover; 2011, Receiving cavity; 2012, Mounting cavity; 2013, Receiving opening; 2014, Receiving groove; 2015, First cover; 2016, Second cover; 2017, Battery compartment circuit board; 202, Output end; 203, Connector; 2031, Main body plate; 2032, Metal terminal; 204, Buckle; 205, Sliding cover; 2051, Slide track; 2052, Relief part; 2053, Protrusion; 2054, Abutting part; 206, Elastic element; 207, Battery compartment button; 208, Battery compartment light guide; 300, Power supply device. Detailed Implementation

[0053] The present patent will now be described in detail with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present patent, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the scope of protection of this patent.

[0054] Reference Figures 1 to 3 This application provides a power supply device 300. The power supply device 300 includes a battery unit 100. The battery unit 100 includes a housing 101 having a first end 1011 and a second end 1012 opposite to each other. The battery unit 100 includes a battery cell 102 disposed within the housing 101. The battery unit 100 includes a main control circuit board 103 disposed within the housing 101 and located at the first end 1011. The battery cell 102 is electrically connected to the main control circuit board 103.

[0055] The battery cell 100 includes a positive terminal 104 and a negative terminal 105. Both the positive terminal 104 and the negative terminal 105 are located at the first end 1011, and each has an inner end electrically connected to the main control circuit board 103 and an outer end exposed outside the housing 101. The main control circuit board 103 outputs electrical energy from the battery cell 102 to the outside at a first voltage through the positive terminal 104 and the negative terminal 105. The first voltage can be 4V.

[0056] The power supply device 300 provided in this application achieves an organic combination of portability and practicality by optimizing the structural design of the battery unit 100. Specifically, the battery unit 100 of the power supply device 300 has several technical advantages by arranging both the positive terminal 104 and the negative terminal 105 at the same end of the housing 101.

[0057] First, by centralizing the positive and negative terminals 105, the layout of the power supply interfaces is simplified, which improves the ease of operation when connecting the power supply device 300 to external devices. When connecting load devices, users only need to identify and operate one end of the interface, effectively reducing the risk of mis-plugging or incorrect connection, and improving safety and efficiency.

[0058] Secondly, since the interfaces are concentrated at one end of the housing 101, the device is more flexible in terms of installation, embedding, or modular combination. For example, in multi-battery parallel applications or battery replacement scenarios, electrical connection or replacement can be completed by operating only one end, which greatly improves the maintenance efficiency and modular expansion capabilities of the equipment.

[0059] Reference Figure 2 and Figure 3 In one embodiment of this application, the battery unit 100 further includes a USB interface 107 disposed at the first end 1011. One end of the USB interface 107 is electrically connected to the main control circuit board 103, and the other end is exposed outside the housing 101. The main control circuit board 103 is used to control the charging and discharging of the battery cell 102 through the USB interface 107 at a third voltage. The USB interface 107 can be a Type-C interface. The Type-C interface has bidirectional power supply capability, which can realize the charging input of external devices to the battery unit 100, and can also realize the power supply of the battery unit 100 to the outside. The third voltage can be greater than the first voltage. The third voltage can be 5V.

[0060] By integrating a Type-C interface at the first end 1011 and cooperating with the main control circuit board 103 to control the charging and discharging of the battery cell 102, this embodiment not only expands the functional boundaries of the power supply device 300, but also improves its versatility, flexibility and safety in actual use, and is especially suitable for application scenarios with new power supply requirements such as portability, modularity and multi-functionality.

[0061] Reference Figure 2 and Figure 3 In one embodiment of this application, the battery unit 100 further includes a signal terminal 106 disposed at the first end 1011. The signal terminal 106 has an inner end electrically connected to the main control circuit board 103 and an outer end exposed outside the housing 101.

[0062] By setting up signal terminals 106 electrically connected to the main control circuit board 103, the information interaction function of the battery unit 100 is further expanded, thereby enhancing the intelligence level and system integration capability of the power supply device 300, and improving its practicality and scalability in complex application environments. By uniformly setting the signal terminals 106 on the first end 1011, and arranging them side by side with the positive and negative terminals 105 and the Type-C interface, it is beneficial to improve the consistency and modularity of the port layout, simplify the design and wiring logic of the connectors, and improve the overall assembly efficiency and system compatibility.

[0063] The positive terminal 104 is used to output the positive voltage signal of the battery cell 100 and is the current output terminal 202 in the discharge path. When the battery cell 100 is used to power external devices, the cell 102 can be boosted or protected by the main control circuit board 103, and then the output current is sent to the external load through the positive terminal 104 to ensure that the battery is not over-discharged or the device is damaged when the external load is abnormal.

[0064] The negative terminal 105 and the positive terminal 104 together form a complete power output circuit. In addition to carrying the operating current, the negative terminal 105 can also serve as a signal reference ground, sharing a common ground with the main control circuit system to ensure the stability of the signal and power system.

[0065] Unlike the positive and negative terminals 105, signal terminal 106 is not directly used for high-current discharge but serves as an auxiliary function for information transmission. In this application, signal terminal 106 can be used to output status information of battery cell 100, such as charge status, for external host or control system to identify whether load start-up is possible. This type of signal may be output by the main control circuit board 103 based on current voltage, charge, temperature, and other conditions, either as a high or low level signal or an analog signal, thereby enabling cooperation with systems such as smart tools and electric devices.

[0066] Through the combination of these three types of terminals, the battery unit 100 not only realizes the basic power output function, but also has the ability to coordinate and control with external intelligent systems, thereby improving the safety and intelligence of the whole machine.

[0067] Reference Figure 3In one embodiment of this application, the battery unit 100 further includes a bracket 108 disposed inside the first end 1011. The bracket 108 may be integrally injection molded from flame-retardant nylon to meet the requirements of electrical insulation, structural strength and flame-retardant safety.

[0068] The bracket 108 includes a main body 1083. The main body 1083 may be annular. The main body 1083 has limiting grooves 1081 for engaging the positive terminal 104, the negative terminal 105, and the signal terminal 106. The bracket 108 is installed inside the housing 101 and can be used to provide support and positioning for the positive terminal 104, the negative terminal 105, and the signal terminal 106. The limiting grooves 1081 may be pre-formed during injection molding of the metal sheet bracket 108 to accurately position the terminals.

[0069] The bracket 108 includes a claw 1082. The claw 1082 extends from the main body 1083 toward the main control circuit board 103. The claw 1082 is used to clamp the edge of the main control circuit board 103. The claw 1082 of the bracket 108 engages with the outer edge of the main control circuit board 103, preventing the board from sliding or falling off through friction and shape constraint, and thus limiting and fixing the main control circuit board 103.

[0070] The main control circuit board 103 can be a PCB circuit board. The positive terminal 104, negative terminal 105, and signal terminal 106 can be made of metal and have a sheet-like structure. The main control circuit board 103 may have sockets, and the inner ends of each terminal can be inserted into the sockets and soldered onto the main control circuit board 103 to form an electrical connection with the circuit of the circuit board, realizing signal transmission or power output functions. The bracket 108 can ensure that the inner ends of each terminal are aligned with the through holes of the PCB board, and the outer ends of each terminal are exposed on the outside of the housing 101 to serve as functional contact surfaces.

[0071] The embodiments of this application provide an integrated bracket 108 structure with terminal support and circuit board fixing functions at the first end 1011 of the battery unit 100, which realizes precise docking and reliable welding between the terminals and the PCB board, as well as effective positioning and stabilization of the main control circuit board 103, thereby further improving the structural integrity, electrical connection reliability and assembly consistency of the battery unit 100.

[0072] Reference Figure 3 In one embodiment of this application, the positive terminal 104 and the negative terminal 105 are opposite each other. The relative arrangement of the positive and negative terminals 105 makes it easier for users to quickly identify the polarity when connecting the battery unit 100 to an external load or charging device, improving the intuitiveness and safety of the connection operation, and enhancing the assembly efficiency and ease of use of the power supply device 300.

[0073] Reference Figure 3In one embodiment of this application, the battery cell 102 is cylindrical. The battery cell 102 used in this application can be a standard model 21700 cylindrical lithium-ion battery cell 102. This battery cell 102 has high energy density, good discharge performance and high safety stability, and is particularly suitable for high-rate output, portable power supply and other scenarios.

[0074] Reference Figure 2 and Figure 3 In one embodiment of this application, the housing 101 is cylindrical. The housing 101 is preferably made of a blend of ABS and PC materials. This material combination offers good mechanical strength, heat resistance, and flame retardancy, making it suitable for the dual requirements of structural strength and safety in the portable power supply device 300.

[0075] The housing 101 may include a first housing 1013 and a second housing 1014 that are interlocked. Structurally, one end of the battery cell 102 is located in the first housing 1013 near the first end 1011, and the other end is located in the second housing 1014 near the second end 1012. The curvature of the inner wall of the housing 101 is designed to match the outer diameter of the selected battery cell 102, thereby forming continuous radial support after the battery cell 102 is installed. When the housing 101 is closed, the inner wall applies a slight and uniform holding force to the battery cell 102, achieving stable fixation of the battery cell 102 and preventing it from shaking or displacing under external forces such as vibration and impact, thus enhancing the reliability and service life of the battery cell 100.

[0076] The battery cell 102 has a positive terminal at one end and a negative terminal at the other end. The positive and negative terminals of the battery cell 102 are electrically connected to the main control circuit board 103. Specifically, the positive terminal of the battery cell 102 is connected to the positive terminal circuit on the main control circuit board 103, and the negative terminal is connected to the corresponding negative terminal circuit, forming a complete current path to support the main control circuit board 103 in controlling the charging and discharging of the battery cell 102 and managing its power.

[0077] Reference Figure 3 In one embodiment of this application, the battery unit 100 further includes a lamp circuit board 109. The lamp circuit board 109 can be a PCB circuit board. The lamp circuit board 109 is disposed at the second end 1012. The lamp circuit board 109 is electrically connected to the main control circuit board 103. The lamp circuit board 109 is provided with a battery unit button circuit.

[0078] The battery unit 100 also includes a battery unit light-emitting element. The battery unit light-emitting element is electrically connected to the lamp circuit board 109.

[0079] The battery unit 100 also includes a battery unit light guide 120. The battery unit light guide 120 is disposed between the battery unit light-emitting element and the housing 101, and is used to guide the light from the battery unit light-emitting element to the outside of the housing 101.

[0080] The battery unit 100 also includes a battery unit button 121. The battery unit button 121 is located at the second end 1012. The battery unit button 121 is at least partially exposed outside the housing 101. When the battery unit button 121 is pressed, the battery unit button circuit is triggered.

[0081] The battery unit 100 may also include a cover 122. The cover 122 may be made of ABS and PC material and is used to press the lamp circuit board 109 against the back of the lamp panel and fix the light guide column. The cover 122 may be snapped or pressed into the inner wall of the housing 101.

[0082] The lamp circuit board 109 is used to control the light-emitting element of the battery cell to emit light when the button circuit is triggered, and to indicate the power status of the battery cell 102 by the light color of the light-emitting element of the battery cell.

[0083] The lamp circuit board 109 in this application is an independently set functional sub-board in the battery unit 100. It is mainly used to realize the power indication function and button input function in user interaction, and works in conjunction with the main control circuit board 103 to complete status feedback and control command input. The lamp circuit board 109 can be electrically connected to the main control circuit board 103 through a ribbon cable to realize signal transmission and function driving.

[0084] The battery cell's light-emitting components can be multiple LEDs integrated on the lamp circuit board 109, which are driven to light up according to control signals. The LEDs can include three colors: red, yellow, and green, used to indicate the current battery power status. For example, red indicates low remaining power, yellow indicates moderate power, and green indicates a fully charged battery. This power status is determined in real-time by the circuit board based on the voltage of the battery cell 102, and the corresponding LEDs are controlled to light up or turn off. Users can intuitively obtain the remaining battery power information through the light color.

[0085] This embodiment constructs a complete system with "battery display + button input + status interaction" functions by setting up a lamp circuit board 109, light-emitting components, buttons, a light guide structure, and a matching cover 122, without significantly increasing space occupation and assembly complexity. This system not only enhances the user's perception of the battery unit 100's operating status but also improves the intuitiveness and convenience of its operation, making it suitable for power supply scenarios requiring portability, intelligence, and high reliability.

[0086] Reference Figure 1 , Figures 5 to 7 In one embodiment of this application, the power supply device 300 includes a battery compartment 200, which includes a cover 201. The cover 201 has an accommodating cavity 2011 and a mounting cavity 2012 formed inside. The battery unit 100 is detachably mounted in the mounting cavity 2012.

[0087] The battery compartment 200 includes a battery compartment circuit board 2017. The circuitry of the battery compartment 200 is disposed within the accommodating cavity 2011. The battery compartment 200 includes an output terminal 202. One end of the output terminal 202 is electrically connected to the battery compartment circuit board 2017, and the other end is exposed outside the cover 201.

[0088] The battery compartment 200 includes a connector 203. The connector 203 is electrically connected to the battery compartment circuit board 2017 and extends into the mounting cavity 2012 for electrical connection with the battery cell 100.

[0089] The battery compartment circuit board 2017 is used to output the electrical energy of the battery cell 100 through the output terminal 202 at a second voltage.

[0090] Two battery cells 100 can be installed within the mounting cavity 2012. The second voltage can be greater than the first voltage. The second voltage can be 8V.

[0091] The battery compartment circuit board 2017 can be a PCB circuit board. The battery compartment circuit board 2017 is mainly used to implement the overall power management and safety control of the battery compartment 200. For example, it can include functions such as series voltage output control of two battery cells 100.

[0092] The battery compartment 200 is used to house, connect, and manage the power of the battery cells 100. The housing 201 internally comprises a receiving cavity 2011 and a mounting cavity 2012 that are interconnected but have clearly defined functions. The mounting cavity 2012 is used for the detachable installation of the battery cells 100, allowing users to easily insert or replace the battery cells 100. The receiving cavity 2011 is used to house key control components such as the battery compartment circuit board 2017.

[0093] The battery compartment circuit board 2017 is preferably a PCB circuit board. The battery compartment circuit board 2017 is electrically connected to the battery unit 100 installed in the mounting cavity 2012 through the connector 203, and establishes a power supply connection with the load outside the cover 201 through the output terminal 202.

[0094] Output terminal 202 is the power output interface of battery compartment 200. One end is electrically connected to battery compartment circuit board 2017, and the other end is exposed outside the cover 201, facilitating connection to various load devices such as power tools, lighting equipment, and mobile terminals. Output terminal 202 can be of type-C, DC port, or a specific quick-connect interface to adapt to different power supply requirements. Preferably, output terminal 202 is a DC output terminal 202.

[0095] In terms of structural configuration, the mounting cavity 2012 can accommodate two battery cells 100, supporting power supply schemes in series, parallel, or hybrid modes. The battery compartment circuit board 2017 has the ability to coordinate control of multiple battery cells 102, and its main functions include, but are not limited to: series output control of the voltage of multiple battery cells 100, overvoltage and undervoltage protection, current balancing, and temperature monitoring.

[0096] This approach, by introducing a accommodating cavity 2011-mounting cavity 2012 structure, a battery compartment circuit board 2017, a connector 203, and an output terminal 202 into the battery compartment 200, achieves a unified design that integrates modularity, multi-battery support, intelligent power management, and efficient load power supply. This significantly improves the overall performance of the power supply device 300 in terms of portability, maintainability, electrical safety, and functional expandability, making it suitable for high-performance power supply needs in diverse and complex scenarios.

[0097] Reference Figures 5 to 7 In one embodiment of this application, the battery compartment 200 includes connectors 203 corresponding to two battery cells 100. The battery compartment 200 may also include mounting cavities 2012 corresponding to the two battery cells 100. The connector 203 includes a main plate 2031. The main plate 2031 is disposed between the receiving cavity 2011 and the mounting cavity 2012.

[0098] The connector 203 includes metal terminals 2032. The metal terminals 2032 pass through the main body plate 2031. One end of the metal terminal 2032 is electrically connected to the battery compartment circuit board 2017, and the other end extends into the mounting cavity 2012 in the form of a spring clip. The connector 203 includes three metal terminals 2032. The three metal terminals 2032 are respectively connected to the outer ends of the positive terminal 104, negative terminal 105, and signal terminal 106 of the battery unit 100.

[0099] The connector 203 is a core structural component used to achieve electrical connection between the battery cell 100 and the battery compartment circuit board 2017. Taking a battery compartment 200 that accommodates two battery cells 100 as an example, the battery compartment 200 includes two relatively independent connectors 203. Each connector 203 includes a main body plate 2031, and each main body plate 2031 is provided with three metal terminals 2032. These metal terminals 2032 are installed in the main body plate 2031 by insert injection molding or assembly. Each set of three terminals consists of a positive terminal 104, a negative terminal 105, and a signal terminal 106, which are used to make corresponding contact with the output points of the positive terminal 104, negative terminal 105, and signal terminal 106 on the battery cell 100, respectively, to complete the transmission of power and signals.

[0100] Metal terminals 2032 extend into the mounting cavity 2012 in the form of spring contacts. When the battery cell 100 is inserted into the battery compartment 200, its positive terminal 104, negative terminal 105, and signal terminal 106 naturally contact these metal spring contacts, forming a stable contact pressure under the action of elasticity, ensuring the reliability and continuity of the electrical connection. The spring-loaded structure not only has good electrical conductivity but also absorbs mechanical tolerance errors generated during insertion and removal, playing a buffering and automatic alignment role, and improving the overall connection stability.

[0101] The end of the metal terminal 2032 within the receiving cavity 2011 can be inserted into a socket on the battery compartment circuit board 2017, and a secure electrical connection can be achieved using a soldering process. This connection method ensures the fixation and conductivity of the metal terminal 2032, and can withstand a certain degree of insertion and extraction force, avoiding power failure caused by poor contact.

[0102] Reference Figure 1 In one embodiment of this application, the second end 1012 of the battery cell 100 is exposed outside the battery compartment 200. This exposed second end 1012 facilitates user identification of the battery cell 100's location and installation status, improving visibility and reducing the probability of misoperation. Secondly, this exposed structure also facilitates heat dissipation. The battery cell 100 may generate heat during charging and discharging; the second end 1012 being exposed outside the battery compartment 200 helps dissipate heat more quickly from the exposed area, reducing the risk of heat buildup between the battery cell 102 and the circuit board, and enhancing the thermal stability and safety of the power supply system. Furthermore, this design facilitates subsequent maintenance and replacement. Users can directly hold, pull out, or insert the battery cell 100 from the second end 1012 without opening the battery compartment 200 cover 201, making it suitable for use scenarios requiring frequent replacement or hot-swapping. Especially in multi-battery configurations, this exposed structure significantly improves the efficiency and smoothness of replacing multiple battery packs.

[0103] Reference Figure 1 , Figure 3 , Figure 4 , Figures 6 to 8 In one embodiment of this application, the cover 201 has an accommodating opening 2013 and an accommodating groove 2014. The accommodating opening 2013 communicates with the mounting cavity 2012.

[0104] The battery compartment 200 also includes a latch 204. The latch 204 is located at the receiving opening 2013.

[0105] The battery compartment 200 also includes a sliding cover 205. The sliding cover 205 is mounted on the cover 201. The sliding cover 205 at least covers the receiving opening 2013 and the receiving groove 2014. The sliding cover 205 includes a slide 2051 and an abutment portion 2054 disposed in the receiving groove 2014. The slide 2051 is slidably engaged with the snap fastener 204.

[0106] The slide rail 2051 includes a clearance portion 2052 and a protrusion 2053. The protrusion 2053 protrudes towards the mounting cavity 2012 relative to the clearance portion 2052. The slide cover 205 includes a snap-fit ​​position and a non-snap-fit ​​position. When the slide cover 205 is in the snap-fit ​​position, the protrusion 2053 engages with the latch 204, causing the latch 204 to extend into the mounting cavity 2012. When the latch 204 is in the non-snap-fit ​​position, the clearance portion 2052 engages with the latch 204 to allow the latch 204 to retract from the mounting cavity 2012.

[0107] The battery compartment 200 also includes a resilient element 206. The resilient element 206 is disposed within the receiving groove 2014 and abuts against the abutment portion 2054. The resilient element 206 is used to automatically reset the sliding cover 205 from the non-clamping position to the clamping position. The resilient element 206 can be a compression spring.

[0108] The housing 101 has a slot 1015 that engages with the snap 204.

[0109] Preferably, the mounting cavity 2012 may have a forward opening. The front end of the elastic member 206 abuts against the wall of the receiving groove 2014, and the rear end abuts against the abutment portion 2054. The battery unit 100 can be inserted into the mounting cavity 2012 from front to back. The sliding cover 205 is disposed below the cover 201. The slide rail 2051 extends back and forth so that the sliding cover 205 can slide back and forth relative to the latch 204. The protrusion 2053 is located on the front side of the relief portion 2052 and protrudes upward relative to the relief portion 2052. The protrusion 2053 and the relief portion 2052 are transitioned by a smooth arc surface.

[0110] The core workflow of the above structure is as follows:

[0111] Insertion process: When the battery unit 100 is inserted into the mounting cavity 2012 from front to back, its tail first makes physical contact with the latch 204. Under the push of the insertion force, the latch 204 is forced to move downward and presses the sliding cover 205 to slide forward from the latching position to the non-latching position, thereby compressing the elastic element 206, causing the latch 204 to switch from cooperating with the protrusion 2053 to cooperating with the relief part 2052, and disengage from the inserted state, releasing the space inside the mounting cavity 2012, allowing the battery unit 100 to continue to be inserted deeper.

[0112] Locking process: When the battery unit 100 is inserted into the preset position, so that the slot 1015 on its housing 101 aligns with the buckle 204, the sliding cover 205 automatically slides backward and resets under the push of the elastic member 206, switching from the non-attached position to the engaged position. This causes the buckle 204 to engage with the protrusion 2053 again and extend upward into the mounting cavity 2012, engaging with the slot 1015 of the battery unit 100, thus completing the locking and fixing of the battery unit 100. This structure effectively prevents the battery unit 100 from rotating or falling out due to vibration, tilting, or external force.

[0113] Pull-out process: When it is necessary to replace or remove the battery unit 100, the user can manually slide the sliding cover 205 from the snap-fit ​​position to the non-snap-fit ​​position. The latch 204 then moves down and out of the battery unit 100 slot 1015 in cooperation with the clearance part 2052. The user can then easily pull the battery unit 100 out of the mounting cavity 2012. The operation is simple and does not require the use of additional tools.

[0114] In this embodiment, the latches 204 and slides 2051 can correspond one-to-one with each battery unit 100. For example, the battery compartment 200 has two parallel mounting cavities 2012 for mounting two battery units 100. Correspondingly, the sliding cover 205 has two slides 2051, and the cover 201 has two receiving openings 2013 that respectively connect to the two mounting cavities 2012. The two receiving openings 2013 correspond to the two slides 2051 respectively, and the two latches 204 are respectively disposed in the two receiving openings 2013 to respectively engage the battery units 100 corresponding to the mounting cavities 2012.

[0115] The automatic locking and unlocking mechanism formed by the combination of the sliding cover 205, the buckle 204, and the elastic element 206 in this embodiment ensures the stable positioning of the battery unit 100 while achieving efficient insertion and removal with one hand, improving assembly convenience, structural reliability, and user experience. It is suitable for portable power supply systems that require portability, high-frequency replacement, and safe anti-detachment.

[0116] Reference Figure 5 and Figure 6 In one embodiment of this application, the battery compartment circuit board 2017 is provided with a battery compartment button circuit. The battery compartment 200 also includes a plurality of battery compartment light-emitting elements. The battery compartment light-emitting elements are electrically connected to the battery compartment circuit board 2017.

[0117] The battery compartment 200 also includes a battery compartment light guide 208. The battery compartment light guide 208 is disposed between the battery compartment light-emitting element and the cover 201, and is used to guide the light from the battery compartment light-emitting element to the outside of the cover 201. The battery compartment light guide 208 can be connected to the cover 201 by screws.

[0118] The battery compartment 200 also includes a battery compartment button 207. The battery compartment button 207 may be partially exposed outside the cover 201. When the battery compartment button 207 is pressed, the battery compartment button circuit is triggered.

[0119] The battery compartment circuit board 2017 is used to control the battery compartment light-emitting element to light up when the button circuit is triggered, and to indicate the power status of the battery unit 100 in the battery compartment 200 by the number of lights emitted by the battery compartment light-emitting element.

[0120] The battery compartment circuit board 2017 integrates multiple battery compartment light-emitting components, preferably multiple LEDs. These LEDs can be directly soldered onto the circuit board and are individually lit or turned off through corresponding control logic to indicate the current power status of the battery cells 100 inside the battery compartment 200.

[0121] The specific working logic is as follows: When the user presses the battery compartment button 207, the button circuit is triggered. The battery compartment circuit board 2017 detects the voltage level of each battery cell 100 in real time and lights up the corresponding number of LEDs according to the set power level classification rules. For example, one light indicates low power, two lights indicate medium power, three lights indicate high power, and four lights indicate full charge. This power level display method based on progressive numbers is intuitive and clear, allowing users to quickly understand the remaining power of the battery compartment 200 and avoid interruption of use due to insufficient power.

[0122] This embodiment constructs a power status indication system integrating "detection-control-feedback" by setting up a battery compartment button 207, button circuit, light-emitting element, and light guide structure. This system not only improves the interaction efficiency and user experience between the user and the power supply device 300, but also enhances the real-time nature and visualization of power supply management.

[0123] In one embodiment of this application, the cover 201 of the battery compartment 200 is preferably made of an ABS and PC blend material. This material possesses good mechanical strength, heat resistance, impact resistance, and flame retardant properties, making it suitable for portable power supply devices 300 with high requirements for structural safety and environmental adaptability. The cover 201 may include a first cover 2015 and a second cover 2016 disposed opposite to each other. The first cover 2015 and the second cover 2016 are connected by a snap-fit ​​structure and / or fasteners. The snap-fit ​​engagement allows for quick assembly and disassembly of the first cover 2015 and the second cover 2016, improving manufacturing and maintenance efficiency. Fasteners provide a stronger mechanical connection, ensuring that the cover 201 does not loosen or separate under external forces such as vibration or drops, thereby enhancing the overall assembly's stability and durability.

[0124] In summary, the power supply device 300 of this application, through systematic optimization design of the battery unit 100 and battery compartment 200 structure, can effectively solve the technical problems of existing power supply devices 300, such as inconvenience in carrying and using, complex installation, unstable electrical connection, and insufficient interactive information.

[0125] Specifically, the power supply device 300 of this application can achieve the following technical effects:

[0126] Structural integration and layout optimization: The positive terminal 104, negative terminal 105, signal terminal 106, and Type-C interface of the battery unit 100 are all located on the first end 1011. The structure is compact and the layout is clear, which greatly simplifies the docking operation and improves the efficiency and safety of users in the connection and plugging process.

[0127] Enhanced electrical connection reliability: By setting up a flame-retardant nylon bracket 108 with a slot 1015 structure, precise positioning and stable welding between the terminals and the main control circuit board 103 are achieved, ensuring high-strength and high-reliability power and signal transmission.

[0128] Modular and hot-swappable capability: The second end 1012 of the battery unit 100 is exposed outside the battery compartment 200. Combined with the automatic locking structure consisting of the buckle 204, the sliding cover 205, and the elastic element 206, the battery insertion and removal operation can be completed with one hand, which improves the efficiency of module replacement and is suitable for high-flexibility application scenarios such as frequent replacement and hot-swapping.

[0129] Intelligent user interaction: The battery unit 100 and the battery compartment 200 are respectively equipped with a light circuit board 109 and a light indicator system. Users can obtain power information in real time through button operation. The light feedback is intuitive and clear, which effectively improves the availability and maintainability of the power supply device 300.

[0130] Highly adaptable and expandable: The battery compartment 200 supports parallel or series connection of multiple battery cells 100. The connector 203 uses a spring-loaded terminal structure to achieve automatic alignment and tolerance compensation, making it suitable for various power output demand scenarios. The battery compartment circuit board 2017 has power management and protection functions, adapting to complex load control and multi-source coordination.

[0131] Excellent structural strength and protective performance: The shell 101 and the cover 201 are made of ABS+PC blend material respectively, and the high-strength packaging and structural stability are achieved through the split snap-fit ​​+ fastener design, which meets the usage requirements of high-intensity working environments such as outdoor and power tool environments.

[0132] Therefore, the power supply device 300 provided in this application, while maintaining portability and modularity, also takes into account high reliability connection, intelligent interaction, safety protection and flexible expansion, and has broad application prospects. It is particularly suitable for scenarios with actual needs for high-performance power supply systems, such as outdoor operations, emergency rescue, industrial inspection, and power supply for intelligent equipment.

[0133] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0134] The detailed descriptions listed above are merely specific descriptions of feasible implementation methods of this patent, and are not intended to limit the scope of protection of this patent. All equivalent implementation methods or modifications that do not depart from the spirit of the technology of this patent should be included within the scope of protection of this patent.

Claims

1. A power supply device (300), characterized in that, Includes a battery cell (100), said battery cell (100) comprising: A housing (101) having opposing first ends (1011) and second ends (1012); A battery cell (102) is disposed within the housing (101); A main control circuit board (103) is disposed inside the housing (101) and located at the first end (1011), and the battery cell (102) is electrically connected to the main control circuit board (103); The positive terminal (104) and the negative terminal (105) are both disposed at the first end (1011), and both have an inner end that is electrically connected to the main control circuit board (103) and an outer end that is exposed outside the housing (101); The main control circuit board (103) outputs the electrical energy of the battery cell (102) to the outside at a first voltage through the positive terminal (104) and the negative terminal (105).

2. The power supply device (300) as described in claim 1, characterized in that, The power supply device (300) includes a battery compartment (200), the battery compartment (200) comprising: The cover (201) has an accommodating cavity (2011) and an mounting cavity (2012) inside. The battery unit (100) is detachably installed in the mounting cavity (2012), and two battery units (100) can be installed in the mounting cavity (2012). A battery compartment circuit board (2017) is disposed within the accommodating cavity (2011); The output terminal (202) has one end electrically connected to the battery compartment circuit board (2017) and the other end exposed outside the cover (201); A connector (203) is electrically connected to the battery compartment circuit board (2017) and extends into the mounting cavity (2012) to be electrically connected to the battery cell (100); The battery compartment circuit board (2017) is used to output the electrical energy of the battery cell (100) through the output terminal (202) at a second voltage, the second voltage being greater than the first voltage.

3. The power supply device (300) as described in claim 1, characterized in that, The battery unit (100) also includes a USB interface (107) disposed on the first end (1011). One end of the USB interface (107) is electrically connected to the main control circuit board (103), and the other end is exposed outside the housing (101). The main control circuit board (103) is used to control the charging and discharging of the battery cell (102) through the USB interface (107) with a third voltage. The USB interface (107) is a Type-C interface. The third voltage is greater than the first voltage and is 5V.

4. The power supply device (300) as described in claim 2, characterized in that, The battery unit (100) further includes a signal terminal (106) disposed at the first end (1011). The signal terminal (106) has an inner end electrically connected to the main control circuit board (103) and an outer end exposed outside the housing (101). The battery compartment (200) includes a connector (203) corresponding one-to-one with the two battery units (100). The connector (203) includes: A main body plate (2031) is disposed between the receiving cavity (2011) and the mounting cavity (2012); A metal terminal (2032) is inserted through the main body plate (2031). One end of the metal terminal (2032) is electrically connected to the battery compartment circuit board (2017), and the other end extends into the mounting cavity (2012) in the form of a spring. The connector (203) includes three metal terminals (2032), and the three metal terminals (2032) are connected to the outer ends of the positive terminal (104), the negative terminal (105), and the signal terminal (106) of the battery unit (100).

5. The power supply device (300) as described in claim 4, characterized in that, The battery unit (100) further includes a bracket (108) disposed inside the first end (1011), the bracket (108) being integrally injection molded from flame-retardant nylon, and the bracket (108) comprising: The main body (1083) is annular and has limiting grooves (1081) for engaging the positive terminal (104), the negative terminal (105) and the signal terminal (106). A claw (1082) extends from the main body (1083) toward the main control circuit board (103) and is used to clamp the edge of the main control circuit board (103).

6. The power supply device (300) as described in claim 5, characterized in that, The positive terminal (104) and the negative terminal (105) are opposite to each other. The battery cell (102) is cylindrical. The housing (101) is cylindrical. The housing (101) includes a first housing (1013) and a second housing (1014) that are interlocked with each other. One end of the battery cell (102) is provided with a positive terminal and the other end is provided with a negative terminal. The positive and negative terminals of the battery cell (102) are electrically connected to the main control circuit board (103) respectively.

7. The power supply device (300) as described in claim 1, characterized in that, The battery cell (100) also includes: A lamp circuit board (109) is disposed at the second end (1012). The lamp circuit board (109) is electrically connected to the main control circuit board (103). The lamp circuit board (109) is provided with a battery unit button circuit. The battery unit light-emitting element is electrically connected to the lamp circuit board (109); A battery cell light guide (120) is disposed between the battery cell light-emitting element and the housing (101) and is used to guide the light from the battery cell light-emitting element to the outside of the housing (101); A battery unit button (121) is disposed at the second end (1012), and the battery unit button circuit is triggered when the battery unit button (121) is pressed. The lamp circuit board (109) is used to control the light-emitting element of the battery cell to emit light when the button circuit is triggered, and to indicate the power status of the battery cell (102) by the light emission color of the light-emitting element of the battery cell.

8. The power supply device (300) as described in claim 2, characterized in that, The cover (201) has an accommodating opening (2013) and an accommodating groove (2014), and the accommodating opening (2013) communicates with the mounting cavity (2012); The battery compartment (200) also includes: A snap fastener (204) is provided at the receiving opening (2013); A sliding cover (205) is mounted on the cover (201). The sliding cover (205) at least covers the receiving opening (2013) and the receiving groove (2014). The sliding cover (205) includes a slide rail (2051) and an abutment portion (2054) disposed in the receiving groove (2014). The slide rail (2051) is slidably engaged with the buckle (204). The slide rail (2051) includes a clearance portion (2052) and a protrusion portion (2053). The protrusion portion (2053) is relative to the clearance portion. (2052) Protruding toward the mounting cavity (2012), the sliding cover (205) includes a snap-fit ​​position and a non-snap-fit ​​position. When the sliding cover (205) is in the snap-fit ​​position, the protrusion (2053) cooperates with the latch (204) to allow the latch (204) to extend into the mounting cavity (2012). When the latch (204) is in the non-snap-fit ​​position, the clearance portion (2052) cooperates with the latch (204) to allow the latch (204) to exit from the mounting cavity (2012). An elastic element (206) is disposed in the receiving groove (2014) and abuts against the abutting part (2054). The elastic element (206) is used to automatically reset the sliding cover (205) from the non-clamping position to the clamping position. The housing (101) has a slot (1015) that engages with the buckle (204).

9. The power supply device (300) as described in claim 2, characterized in that, The battery compartment circuit board (2017) is provided with a battery compartment button circuit, and the battery compartment (200) further includes: Multiple battery compartment light-emitting elements are electrically connected to the battery compartment circuit board (2017); A battery compartment light guide (208) is disposed between the battery compartment light-emitting element and the cover (201) and is used to guide the light from the battery compartment light-emitting element to the outside of the cover (201); A battery compartment button (207) is configured to work in conjunction with the battery compartment button circuit. When the battery compartment button (207) is pressed, the battery compartment button circuit is triggered. The battery compartment circuit board (2017) is used to control the battery compartment light-emitting element to emit light when the button circuit is triggered, and to indicate the power status of the battery cell (100) in the battery compartment (200) by the number of lights emitted by the battery compartment light-emitting element.

10. The power supply device (300) as claimed in claim 2, characterized in that, The battery compartment (200) housing includes a first cover (2015) and a second cover (2016) disposed opposite to each other. The first cover (2015) and the second cover (2016) are connected by a snap-fit ​​structure and / or fasteners. The output terminal (202) is a DC output terminal. The second end (1012) of the battery unit (100) is exposed outside the battery compartment (200). The first voltage is 4V and the second voltage is 8V.

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