A portable lithium-ion power source

Abstract

The utility model discloses a portable lithium ion power supply belongs to power box technical field, including the both sides symmetrical arrangement of box body pulley assembly, the pulley assembly includes fixed block, sliding block, connecting block and pulley, the fixed block fixed connection in the both sides of box body, be equipped with the guide groove on the fixed block, the both ends of sliding block are connected in the guide groove respectively, the connecting block fixed connection is in the sliding block, the pulley rotation is established in the connecting block, the first positioning groove and second positioning groove are connected and are arranged on the guide groove, when sliding block is located in the first positioning groove, the pulley is higher than the bottom of box body, when sliding block is located in the second positioning groove, the pulley is lower than the bottom of box body, the utility model has improved lithium ion power supply transportation convenience's advantage.

Description

Technical Field

[0001] This utility model relates to the field of power supply box technology, specifically a portable lithium-ion power supply. Background Technology

[0002] Portable lithium-ion power supplies, as high-capacity, portable energy storage devices, have been widely used in outdoor camping, emergency rescue, mobile office, and powering various electronic devices. With the increase in battery energy density, their capacity is growing larger, leading to a significant increase in the overall weight and size of the device, which places higher demands on the portability of the power supply.

[0003] Portable lithium-ion power supplies typically consist of a housing and a handle. The handle is mounted on the housing, and when the housing needs to be moved, simply lift the handle to move the housing directly.

[0004] However, some lithium-ion power supplies are quite heavy, and portable power supplies can easily cause a significant burden when moving them.

[0005] Based on this, the present invention designs a portable lithium-ion power supply to solve the above problems. Utility Model Content

[0006] To achieve the above objectives, the present invention provides the following technical solution: Pulley assemblies are symmetrically arranged on both sides of the housing. Each pulley assembly includes a fixed block, a slider, a connecting block, and a pulley. The fixed block is fixedly connected to both sides of the housing, and a guide groove is provided on the fixed block. Both ends of the slider are slidably connected to the guide groove. The connecting block is fixedly connected to the slider, and the pulley is rotatably mounted on the connecting block. A first positioning groove and a second positioning groove are connected in the guide groove. When the slider is located in the first positioning groove, the pulley is higher than the bottom of the housing. When the slider is located in the second positioning groove, the pulley is lower than the bottom of the housing.

[0007] By adopting the above technical solution, the slider can switch between the first positioning groove and the second positioning groove, allowing the user to easily lower the pulley on the power box as needed, so that the pulley can contact the ground and the power box can slide on the ground. When it is not needed to move, the pulley can be retracted to avoid the pulley directly contacting the ground and preventing it from being damaged by bumps. At the same time, it also makes the box more stable, saves space, and facilitates warehousing and transportation.

[0008] Preferably, the slider is provided with a magnetic block one, and the top of the first positioning groove and the second positioning groove are both provided with a limit groove. A magnetic block two is fixedly provided in the limit groove. When the slider is inserted into the first positioning groove or the second positioning groove, the magnetic block one and the magnetic block two attract each other.

[0009] By adopting the above technical solution and using magnetic attraction for positioning, a clear locking sensation can be provided for the slider, preventing the slider from accidentally coming out of the positioning groove when the box moves or is subjected to slight vibration. This enhances the stability of the two working states and improves the reliability of the product.

[0010] Preferably, the bottom of the box is also provided with support feet, and when the pulley is located above the bottom of the box, the box is supported by the support feet.

[0011] By adopting the above technical solution, when the pulley is retracted, the cabinet is supported by the support feet, avoiding direct contact between the bottom of the cabinet and the ground. On the one hand, this can effectively prevent scratches, wear and corrosion, and extend the service life of the product. On the other hand, the support feet raise the bottom of the cabinet, creating an air circulation space between it and the ground, which is beneficial for heat dissipation when the power supply is working.

[0012] Preferably, the handle is provided with an extension mechanism for pulling the box body.

[0013] By adopting the above technical solution and extending the lever arm, users do not need to bend over excessively when dragging the box, which is more labor-saving, ergonomic, and improves the user experience.

[0014] Preferably, the handle has a cavity inside, the extension mechanism includes a spool and a spiral spring, the spool is rotatably disposed in the cavity, the spiral spring is disposed in the spool, a connecting piece is detachably disposed on the handle, one end of the spool is fixedly connected to the spiral spring, and the other end of the spool is fixedly connected to the connecting piece.

[0015] By adopting the above technical solution, the pull cord can be easily pulled out, and after releasing it, it will automatically, quickly and neatly retract into the cavity under the action of the spiral spring. This completely solves the problems of traditional pull cords requiring manual winding, being prone to dirt and knots. All components are built into the handle cavity and are completely hidden when not in use, making the product look simple and beautiful.

[0016] Preferably, the reel is made of an inelastic material.

[0017] By adopting the above technical solution, the inelastic rope will not stretch when dragging, ensuring that the pulling force is transmitted to the box in an instant and efficiently, providing a solid and responsive feel, and allowing users to have more precise control over the box.

[0018] Preferably, the connecting piece has clearance holes on both sides.

[0019] By adopting the above technical solution, the force points of the connecting piece are increased, making it easier for users to disassemble the connecting piece.

[0020] In summary, this application has the following beneficial technical effects: by switching the slider between the first positioning groove and the second positioning groove, the user can easily lower the pulley on the power box as needed, so that the pulley can contact the ground and the power box can slide on the ground. When it is not necessary to move, the pulley can be retracted to avoid the pulley directly contacting the ground and preventing it from being damaged by bumps. At the same time, it also makes the box more stable, saves space, facilitates storage and transportation, and allows the user to move the box more easily. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of this embodiment; Figure 2 This is a schematic diagram of the pulley assembly structure in this embodiment; Figure 3 This is a schematic diagram of the side structure of the fixing block in this embodiment; Figure 4 This is a schematic diagram of the cross-sectional structure of the handle in this embodiment; Figure 5 This is a schematic diagram of the extension component structure in this embodiment.

[0023] The attached diagram lists the components represented by each number as follows: 1. Housing; 2. Handle; 3. Pulley; 4. Fixing block; 5. Guide groove; 6. First positioning groove; 7. Slider; 8. Connecting block; 9. Magnetic block two; 10. Magnetic block one; 11. Connecting piece; 12. Cavity; 13. Spiral spring; 14. Roller; 15. Clearance hole; 16. Support foot; 17. Second positioning groove; 18. Limiting groove. Detailed Implementation

[0024] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0026] A portable lithium-ion power supply includes a housing 1 and a handle 2. The housing 1 is typically made of high-strength engineering plastic and houses a lithium-ion battery pack, a battery management system, and various input / output interfaces. The handle 2 is rotatably connected to the housing 1. Pulley assemblies are symmetrically arranged on both sides of the housing 1. Each pulley assembly includes a fixing block 4, a slider 7, a connecting block 8, and a pulley 3. The fixing block 4 is fixedly connected to both sides of the housing 1 and has a guide groove 5. The two ends of the slider 7 are slidably connected to the guide groove 5. The connecting block 8 is fixedly connected to the slider 7. The pulley 3 is rotatably mounted on the connecting block 8. A first positioning groove 6 and a second positioning groove 17 are connected to the guide groove 5. When the slider 7 is in the first positioning groove 6, the pulley 3 is higher than the bottom of the housing 1. When the slider 7 is in the second positioning groove 17, the pulley 3 is lower than the bottom of the housing 1.

[0027] In use, when the user pushes the slider 7 upwards, causing it to slide to the top of the guide groove 5 and engage with the first positioning groove 6, the entire pulley assembly is in the retracted state. The bottom of the pulley 3 at the end of the connecting block 8 is raised to a position higher than the bottom plane of the housing 1. At this time, the housing 1 can be directly supported on the ground by its own bottom or the additional support feet 16. The pulley 3 is off the ground and will not roll, making the housing 1 stable and suitable for static use or manual handling. When the user pulls the slider 7 downwards, causing it to disengage from the first positioning groove 6, move down along the guide groove 5, and finally engage with the second positioning groove 17, the entire pulley assembly is in the unfolded state. The bottom of the pulley 3 at the end of the connecting block 8 descends to a position lower than the bottom plane of the housing 1. At this time, the housing 1 is supported by the pulley 3, and the user can easily move the power supply by rolling the pulley 3 on the ground, greatly saving carrying effort.

[0028] The slider 7 is equipped with a magnetic block 10. The top of the first positioning groove 6 and the second positioning groove 17 are both provided with a limiting groove 18. A magnetic block 9 is fixedly installed in the limiting groove 18. When the slider 7 slides into either positioning groove, the magnetic block 10 and the magnetic block 9 attract each other, producing a clear "click" feel and providing sufficient magnetic force to hold it in place. This effectively prevents the pulley 3 from leaving the working position under unexpected circumstances and ensures the stability of the pulley assembly.

[0029] The bottom of the enclosure 1 is also equipped with support feet 16. When the pulley 3 is located above the bottom of the enclosure 1, the enclosure 1 is supported by the support feet 16, which can effectively prevent the enclosure 1 from being scratched, worn and corroded by direct contact with the ground, which is conducive to heat dissipation when the power supply is working and extends the service life of the power supply box.

[0030] The handle 2 is provided with an extension mechanism for pulling the box 1. The handle 2 has a cavity 12 inside. The extension mechanism includes a roller 14 and a spiral spring 13. The roller 14 is rotatably disposed in the cavity 12. The spiral spring 13 is disposed in the roller 14. A connecting piece 11 is detachably disposed on the handle 2. One end of the roller 14 is fixedly connected to the spiral spring 13, and the other end of the roller 14 is fixedly connected to the connecting piece 11.

[0031] When the user needs to drag the case 1, they can manually remove the connecting piece 11 and pull out one end of the scroll 14. The pull rope will cause the scroll 14 to rotate in the cavity 12. At this time, the spiral spring 13 will be wound up and store elastic potential energy. The user can keep it pulled out and drag the portable power supply easily through the scroll 14, just like using a suitcase. When the user releases the connecting piece 11, the wound spiral spring 13 will release its stored elastic potential energy and drive the scroll 14 to rotate in the opposite direction, thereby automatically and neatly rewinding the scroll 14 until the scroll 14 is completely retracted and hidden in the cavity 12 of the handle 2. The connecting piece 11 will also be pressed tightly against the handle 2 again by the action of the spiral spring 13.

[0032] The scroll 14 is made of a non-elastic material, and the pull rope made of non-elastic material ensures direct transmission of force when dragging, providing a solid feel and precise control. The connecting piece 11 has clearance holes 15 on both sides. When disassembling the connecting piece 11, you can insert your fingers into the clearance holes 15 and pry the connecting piece 11 out of the cavity 12 to remove it. The clearance holes 15 provide a force application point for the connecting piece 11, improving the ease of use of the extension device.

[0033] The implementation principle of this embodiment is as follows: when the user pushes the slider 7 upwards, causing it to slide to the top of the guide groove 5 and engage with the first positioning groove 6, the entire pulley assembly is in a retracted state. The bottom of the pulley 3 at the end of the connecting block 8 is raised to a position higher than the bottom plane of the housing 1. At this time, the box 1 can be directly supported on the ground by its own bottom or the additional support feet 16. The pulley 3 is off the ground and will not roll. The box 1 is placed stably and is suitable for static use or manual handling. When the user pulls down the slider 7 to make it disengage from the first positioning groove 6, move down along the guide groove 5 and finally lock into the second positioning groove 17, the entire pulley assembly is in the unfolded state. The bottom of the pulley 3 at the end of the connecting block 8 drops to a position lower than the bottom plane of the box 1. At this time, the box 1 is supported by the pulley 3. The connecting piece 11 is removed by hand and one end of the scroll 14 is pulled outward. The pull rope drives the scroll 14 to rotate in the cavity 12. At this time, the spiral spring 13 is wound up and stores elastic potential energy. The user keeps it in the pulled-out state. The user can easily move the power supply by rolling the pulley 3 on the ground, which greatly saves the carrying effort.

[0034] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable lithium-ion power supply, comprising a housing (1) and a handle (2), characterized in that: The box (1) is symmetrically provided with pulley assemblies on both sides. The pulley assembly includes a fixed block (4), a slider (7), a connecting block (8), and a pulley (3). The fixed block (4) is fixedly connected to both sides of the box (1). The fixed block (4) is provided with a guide groove (5). The two ends of the slider (7) are slidably connected in the guide groove (5). The connecting block (8) is fixedly connected to the slider (7). The pulley (3) is rotatably disposed on the connecting block (8). The guide groove (5) is provided with a first positioning groove (6) and a second positioning groove (17). When the slider (7) is located in the first positioning groove (6), the pulley (3) is higher than the bottom of the box (1). When the slider (7) is located in the second positioning groove (17), the pulley (3) is lower than the bottom of the box (1).

2. The portable lithium-ion power supply according to claim 1, characterized in that: The slider (7) is provided with a magnetic block one (10). The top of the first positioning groove (6) and the second positioning groove (17) are both provided with a limiting groove (18). A magnetic block two (9) is fixedly provided in the limiting groove (18). When the slider (7) is inserted into the first positioning groove (6) or the second positioning groove (17), the magnetic block one (10) and the magnetic block two (9) attract each other.

3. A portable lithium-ion power supply according to claim 1, characterized in that: The bottom of the box (1) is also provided with a support foot (16). When the pulley (3) is located above the bottom of the box (1), the box (1) is supported by the support foot (16).

4. A portable lithium-ion power supply according to claim 1, characterized in that: The handle (2) is provided with an extension mechanism for pulling the box (1).

5. A portable lithium-ion power supply according to claim 4, characterized in that: The handle (2) has a cavity (12) inside. The extension mechanism includes a spool (14) and a spiral spring (13). The spool (14) is rotatably disposed in the cavity (12). The spiral spring (13) is disposed in the spool (14). A connecting piece (11) is detachably disposed on the handle (2). One end of the spool (14) is fixedly connected to the spiral spring (13), and the other end of the spool (14) is fixedly connected to the connecting piece (11).

6. A portable lithium-ion power supply according to claim 5, characterized in that: The scroll (14) is made of a non-elastic material.

7. A portable lithium-ion power supply according to claim 5, characterized in that: The connecting piece (11) has clearance holes (15) on both sides.

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