Battery protection type line structure and battery protection line device

Abstract

This utility model relates to the field of battery protection technology, and in particular to a battery protection circuit structure. A battery protection circuit structure includes: a circuit board for battery protection; a fuse mounted on the circuit board using surface mount technology; a power line connected to the circuit board by soldering or plugging, forming an electrical connection between the power line and one end of the fuse; and a ring terminal connected to the circuit board, forming an electrical connection between the ring terminal and the other end of the fuse, thus forming a simplified battery protection circuit device. This solution effectively solves the technical problems of complex installation, large space occupation, and difficult equipment maintenance in existing technologies, providing a more compact, convenient, and efficient solution for battery protection devices.

Description

Technical Field

[0001] This utility model relates to the field of battery protection technology, and in particular to a battery protection circuit structure and a battery protection circuit device. Background Technology

[0002] Currently, battery protection devices typically use a traditional fuse placed in the middle of the power cord. When the current exceeds the design load, the fuse blows, thus protecting the battery and connected devices. However, existing designs have the following problems: The installation process of battery protection devices is complicated, especially since traditional fuses are large and difficult to install in a limited space. At the same time, the production process is also complicated and the cost is high.

[0003] Therefore, there is an urgent need for a battery protection circuit device with a simplified structure, convenient installation, and small size to solve the problems of complex installation and high cost. Utility Model Content

[0004] The purpose of this utility model is to provide a battery protection circuit structure and battery protection circuit device to address the shortcomings of the existing technology. It aims to fix the fuse by surface adhesive technology or to use a resettable tripping device to solve the shortcomings of the existing battery protection device in terms of size, installation and ease of use.

[0005] This utility model achieves the above objectives through the following technical solution: a battery protection circuit structure, comprising: Circuit board; Fuses are mounted on circuit boards using surface mount technology; The power cord is connected to the circuit board by soldering or plugging, so that one end of the power cord and the fuse are electrically connected. A ring terminal is connected to the circuit board, forming an electrical connection between the ring terminal and the other end of the fuse, thus forming a simplified battery protection circuit device.

[0006] Furthermore, the annular terminal includes a clamp, a wireless charging connector, or a magnetic charging connector.

[0007] Furthermore, it also includes a protective housing that encloses the fuse, power cord, and ring terminal. Specifically, it completely encloses the fuse and partially encloses the power cord and ring terminal.

[0008] Furthermore, the fuse is a self-resetting fuse of model 2920L.

[0009] Furthermore, the fuse can also be a Q-seriesLimitor manual reset fuse. Specifically, after the reset fuse trips, it will not reset again once the temperature drops; it will only reset when the power is manually switched on and then switched off. For details on Q-seriesLimitor manual reset fuses, please see the links: "https: / / hkcn.rs-online.com / web / p / thermal-fuses / 1769081" or "https: / / docs.rs-online.com / 4da7 / 0900766b8008c938.pdf".

[0010] Furthermore, the resettable fuse is also a tripping device, and the tripping device is a resettable tripping device. Specifically, the resettable tripping device can be manually reset after an overload or automatically reset by cooling.

[0011] A battery protection circuit structure includes: Power cord; Ring terminal; and The fuse has one end soldered to the power cord and the other end soldered to the ring terminal.

[0012] Furthermore, it also includes a protective housing that encloses the fuse, power cord, and ring terminal; The ring terminal includes a clamp body, a wireless charging connector, or a magnetic charging connector. The fuse is a 2920L self-resetting fuse, also known as a resettable tripping device. Alternatively, a Q-seriesLimitor manual reset fuse may also be used.

[0013] A battery protection circuit device includes the battery protection circuit structure described in any one of the preceding claims.

[0014] This plan: Surface mount technology for fuse mounting: Using surface mount technology, fuses are fixed to the circuit board by adhesive bonding, avoiding the problems of excessive size and inconvenient installation associated with traditional fuses. The fuse, power cord, and ring terminal are electrically connected to form a complete protection circuit, ensuring that the circuit is cut off in the event of an overload, thereby protecting the battery and other components. This bonding technology allows for more compact integration of fuses into the circuit board, saving space and improving production efficiency.

[0015] Battery protection circuit device structure: The battery protection circuit device includes a fuse, power cord and ring terminal (such as clamp, wireless charging connector or magnetic charging connector) fixed by surface mount technology, and the components are connected by soldering or terminal plugging.

[0016] The design of the fuse connection to the power cord and terminals ensures effective battery protection. When there is an overload, the fuse will cut off the current to prevent damage to the equipment.

[0017] Self-resetting fuses (resettable tripping devices): Self-resetting fuses, or resettable tripping devices, replace the single-use protection function of traditional fuses. The tripping device automatically disconnects the circuit during current overload and returns to normal operation via manual reset after the overload is cleared. This design extends the device's lifespan, reduces the frequency of traditional fuse replacements, and improves overall maintainability and reliability.

[0018] Protective design: Through protective designs such as injection-molded or plastic protective shells, the circuit board components such as fuses, power lines, and ring terminals are fully protected, enhancing the battery protection circuit device's resistance to damage and improving the product's durability.

[0019] Working process or principle: Surface mount technology for fuse mounting: In battery protection circuitry, the fuse, as a circuit protection element, melts and cuts off the current when the current exceeds a preset safety value, protecting the battery from damage. The fuse is fixed to the circuit board using surface mount technology and connected to the power cord and ring terminal, ensuring that the circuit is cut off in case of overload, preventing equipment damage.

[0020] Traditional fuses are typically installed by plugging or soldering, while this solution uses surface mount technology to directly attach the fuse to the circuit board, reducing the fuse's size and making its installation more compact and stable.

[0021] Battery protection circuit design: The circuit board design is simplified. The power cord is connected to the circuit board by soldering or terminal plugging. The power cord is directly connected to the circuit board, reducing additional contacts and avoiding signal attenuation and poor contact problems caused by multiple contact connections in traditional battery protection devices.

[0022] Ring terminals (such as clamps, wireless charging connectors, magnetic charging connectors, etc.) are also connected to the circuit board through surface mount technology and soldering to form a complete battery protection system.

[0023] Resettable tripping devices: Unlike traditional fuses, resettable tripping devices not only disconnect current in case of overload but also have a resettable function. Users can manually reset them or achieve automatic reset through cooling, restoring normal current flow. This device immediately trips the circuit when an overload occurs, preventing damage to equipment and batteries. After the overload is eliminated, the resettable tripping device can be restored to its operating state through simple manual operation or automatically, eliminating the hassle of replacing fuses and increasing system availability and long-term stability.

[0024] The beneficial effects of this utility model are: This solution simplifies the circuit board structure by using surface mount technology (SMT) to fix the fuses and introduces resettable fuses (also known as resetting tripping devices) to replace traditional fuses. This solves the problems of complex installation, large size, and inconvenience in use of existing battery protection devices. Specifically, this solution: Surface-mount technology secures fuses to the circuit board, saving space and reducing the cumbersome steps of traditional installation methods. Power cords and ring terminals are connected via simplified soldering or plug-in methods, ensuring quick and stable assembly and reducing production costs.

[0025] By using surface mount technology to fix components, the circuit board structure becomes more compact, effectively solving the problems of excessively large component size and wasted space in traditional designs.

[0026] Resettable tripping devices replace the single-use protection function of traditional fuses. They can automatically disconnect the circuit when there is an overload, and reset it with a simple operation after the overload is eliminated. This avoids the problem of frequent fuse replacement, thereby improving the service life and maintenance convenience of the equipment.

[0027] By using injection molding or plastic protective shells to provide all-round protection for the circuit board, the battery protection circuit device's resistance to damage is enhanced, it can adapt to complex working environments, and the product's durability is improved.

[0028] In summary, this solution effectively addresses the technical problems of complex installation, large space occupation, and difficult equipment maintenance in existing technologies, providing a more compact, convenient, and efficient solution for battery protection devices. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of a surface mount technology fuse or surface mount technology tripping device mounted on a circuit board according to this utility model.

[0030] Figure 2 for Figure 1 This is a schematic diagram of the structure after the power cord is inserted into the circuit board.

[0031] Figure 3 This is a schematic diagram of a circuit board where the power cord is directly soldered to it.

[0032] Figure 4 A schematic diagram showing the structure for directly soldering the ring terminal onto the circuit board.

[0033] Figure 5 This is a schematic diagram of a structure where the power cord and ring terminal are directly soldered to a surface mount technology fuse or tripping device.

[0034] Figure 6 A schematic diagram of a battery-protected circuit structure encased in a protective casing. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. It is understood that the accompanying drawings are provided for reference and illustration only, and are not intended to limit the present invention. The connection relationships shown in the accompanying drawings are only for clear description and do not limit the connection method.

[0036] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The terminology used in this specification is only for the purpose of describing specific embodiments and is not intended to limit the invention.

[0037] Current designs typically place the fuse on the positive power line of the clamp or ring terminal. When the current exceeds the design load, the fuse will blow, protecting the battery and connected devices. However, in this traditional design: 1. The production process is complex, so the cost of clamps or ring terminals with fuses is high.

[0038] 2. Generally, the fuse is located in the middle of the power cord. There is no protection between the front end of the fuse and the clamp or ring terminal. If there is a break in the power cord, a short circuit can occur at the break point, endangering the user.

[0039] 3. Typical fuses are automotive fuses, so they are large in size and have great limitations in terms of installation location.

[0040] Therefore, this solution provides a battery-protected circuit structure that can be applied not only to clamps and ring terminals, but also to other connection methods, including but not limited to wireless charging connectors, magnetic charging connectors, etc.

[0041] like Figures 1-6 As shown, this embodiment of the utility model provides a battery protection circuit structure, including: Circuit board; Fuses are mounted on circuit boards using surface mount technology; The power cord is connected to the circuit board by soldering or plugging, so that one end of the power cord and the fuse are electrically connected. A ring terminal is connected to the circuit board, forming an electrical connection between the ring terminal and the other end of the fuse, thus forming a simplified battery protection circuit device.

[0042] Furthermore, the annular terminal includes a clamp, a wireless charging connector, or a magnetic charging connector.

[0043] Furthermore, it also includes a protective housing that encloses the fuse, power cord, and ring terminal. Specifically, it completely encloses the fuse and partially encloses the power cord and ring terminal.

[0044] Furthermore, the fuse is a self-resetting fuse of model 2920L.

[0045] Furthermore, the fuse can also be a Q-series limiter manual reset fuse. Specifically, after the reset fuse trips, it will not reset again once the temperature drops; it will only reset when the power is manually switched on and then switched off. For details on Q-series limiter manual reset fuses, please see the links: "https: / / hkcn.rs-online.com / web / p / thermal-fuses / 1769081" or "https: / / docs.rs-online.com / 4da7 / 0900766b8008c938.pdf".

[0046] Furthermore, the tripping device is a resettable tripping device. Specifically, the resettable tripping device can be manually reset after an overload or automatically reset by cooling.

[0047] A battery protection circuit structure includes: Power cord; Ring terminal; and The fuse has one end soldered to the power cord and the other end soldered to the ring terminal.

[0048] Furthermore, it also includes a protective housing that encloses the fuse, power cord, and ring terminal; The ring terminal includes a clamp body, a wireless charging connector, or a magnetic charging connector. The fuse is a 2920L self-resetting fuse, also known as a resettable tripping device. Alternatively, a Q-series limiter manual reset fuse may be used.

[0049] A battery protection circuit device includes the battery protection circuit structure described in any one of the preceding claims.

[0050] Advantages of this solution: 1. Simplified Structure: Traditional automotive fuses will be replaced with surface mount technology (SMT) fuses, specifically 2920L self-resetting fuses, also known as resettable tripping devices, mounted directly onto the circuit board for miniaturization. Power cables can be directly soldered to one end of the circuit board or inserted into one end via terminals, simplifying installation. Clamp bodies / ring terminals / wireless charging connectors / magnetic charging connectors can be directly soldered to the other end of the circuit board or inserted into the other end via terminals, simplifying installation. Protective features will be added to the entire design (including fuses, circuit boards, power cable ends, and terminals), such as injection molding, plastic / metal housings, or other material protection.

[0051] 2. Add a resettable trip design: The simplified fuse is a one-time fuse, but the surface mount technology fuse is replaced with a surface mount technology resettable trip device to make it a resettable design.

[0052] 3. Reduced size: Because surface mount technology is used to design fuses or surface mount technology is used for safety protection, the size can be greatly reduced.

[0053] 4. Optimized protection: Because the surface mount technology design of the self-resetting fuse or surface mount technology jumper (or the circuit board with the self-resetting fuse or surface mount technology jumper) is directly connected to the clamp / ring terminal / wireless charging connector / magnetic charging connector, the assembly process efficiency is optimized, and the safety and integration are also higher.

[0054] Based on the technical solution of this utility model, the following is a detailed description of the specific implementation of the battery protection circuit device (which may be a battery protection circuit board): Surface mount technology for securing fuses: Fuse Installation: On the battery protection circuitry, conductive adhesive is used with surface mount technology to fix the fuse in a predetermined position, ensuring its stability. This fixing method not only makes the fuse more compact but also effectively reduces errors during the soldering process, enhancing the overall reliability of the circuit board.

[0055] Installation location: The fuse is installed on the line connecting the power input terminal and the battery to ensure that the circuit can be quickly cut off when the current exceeds a predetermined value, thus protecting the battery and the battery protection system.

[0056] Connection of power cord and ring terminal: Power cord connection: The two ends of the power cord are connected to the input and output terminals of the battery protection circuit device via soldering or terminal plugging. Soldering ensures a secure connection between the power cord and the circuit board, avoiding poor contact problems caused by loose connections.

[0057] Ring terminal connection: Ring terminals (such as clamps or wireless charging connectors) are connected to the circuit board by soldering or plugging to ensure stable current transmission between the battery and the device.

[0058] Applications of resettable stop devices: Breaker Device Design: The breaker device is designed to disconnect the circuit in case of overload. Users can manually reset the device after the overload is eliminated, or it can be automatically reset by cooling to restore normal operation. This device avoids the problem of frequent replacement of traditional fuses, providing a more convenient maintenance method.

[0059] Installation method: The jumper device is also fixed to the circuit board by surface mount technology, forming a protection circuit together with the fuse.

[0060] Protective Case Design: To improve the durability of the battery protection circuitry, a protective case made of injection molding or plastic is used to protect the components on the circuit board. This protection not only enhances the impact resistance of the battery protection circuitry but also prevents damage to the internal circuitry from the external environment.

[0061] In detail: A surface-mount self-resetting fuse or a surface-mount resettable tripping device 1 is mounted on the circuit board 2, such as... Figure 1 .

[0062] Insert power cable 3 into circuit board 2, and then solder power cable 3 onto circuit board 2, as follows. Figure 2 .

[0063] remove Figure 2 In addition, power cord 3 can be directly soldered to circuit board 2, such as... Figure 3 .

[0064] Insert the ring terminal 4 (including the clamp body / wireless charging connector / magnetic charging connector) into the circuit board 2 and solder it on, or solder the ring terminal 4 directly onto the circuit board 2, as follows. Figure 4 .

[0065] remove Figure 4 In addition, the power cord 3 and the ring terminal 4 can be directly soldered to the surface mount technology fuse or tripping device 1, such as... Figure 5 .

[0066] A protective housing 5, made of injection molding (including plastic, metal, or other protective materials), is used to protect surface-mount technology fuses or tripping devices 1, circuit boards 2, power cords 3, and ring terminals 4, such as... Figure 6 .

[0067] This solution is applicable to consumer electronics, chargers, battery detectors, automotive protection, and other fields, and is feasible for mass production and meets market demand.

[0068] Finally, it should be noted that any cross-referencing or superposition of the various embodiments of this solution by those skilled in the art still falls within the original disclosure scope of this solution. Furthermore, the above descriptions are merely preferred embodiments of this utility model and are not intended to limit this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A battery-protected circuit structure, characterized in that, include: Circuit board used for battery protection; Fuses are mounted on circuit boards using surface mount technology; The power cord is connected to the circuit board by soldering or plugging, so that one end of the power cord and the fuse are electrically connected. A ring terminal is connected to the circuit board, so that the ring terminal forms an electrical connection with the other end of the fuse.

2. The battery protection circuit structure according to claim 1, characterized in that, The ring terminal includes a clamp, a wireless charging connector, or a magnetic charging connector.

3. The battery protection circuit structure according to claim 1, characterized in that, It also includes a protective housing that encloses the fuse, power cord, and ring terminal.

4. The battery protection circuit structure according to claim 1, characterized in that, The fuse is a 2920L self-resetting fuse.

5. The battery protection circuit structure according to claim 1, characterized in that, The fuse is a manually resettable fuse.

6. A battery-protected circuit structure, characterized in that, include: Power cord; Ring terminal; as well as The fuse has one end soldered to the power cord and the other end soldered to the ring terminal.

7. The battery protection circuit structure according to claim 6, characterized in that, It also includes a protective housing that encloses the fuse, power cord, and ring terminal; The ring terminal includes a clamp body, a wireless charging connector, or a magnetic charging connector. The fuse is either a self-resetting fuse or a manually resettable fuse.

8. A battery protection circuit device, characterized in that, Includes the battery-protected circuit structure as described in any one of claims 1-7.

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