Automobile emergency power supply facilitating replacement of battery pack
The design of the wedge-shaped slot and snap-fit assembly solves the problem of cumbersome replacement of existing automotive emergency power battery packs, enabling fast and convenient battery pack replacement and improving the reliability and safety of the product.
Patent Information
- Application Number
- CN202522609499.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-09
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-09
Smart Images

Figure CN224934920U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive emergency equipment technology, and in particular to an automotive emergency power supply that facilitates battery pack replacement. Background Technology
[0002] Most car emergency power supplies on the market currently adopt an integrated packaging design, with the internal battery pack fixedly connected to the main power supply structure. Users cannot replace the battery themselves according to usage needs or battery aging. These products typically integrate the battery, control circuit, and output interface into a sealed casing. When the performance of the built-in battery deteriorates or completely fails, it often requires professional repair or direct disposal. This not only increases the user's operating costs but also causes resource waste and puts pressure on electronic waste disposal.
[0003] To address the aforementioned issues, some improved products have attempted to adopt a detachable battery pack design, but in actual use, there are still many limitations. The battery pack and the main unit are mostly fastened with screws or connected by complex clips, and the replacement process requires tools and involves cumbersome steps.
[0004] Therefore, how to provide an emergency power source for automobiles that facilitates battery pack replacement is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0005] One objective of this invention is to provide an emergency power supply for automobiles that facilitates battery pack replacement. This invention solves the problems mentioned in the background art.
[0006] According to an embodiment of the present invention, a car emergency power supply for easy battery pack replacement includes a power supply housing and a battery pack. A placement groove is provided on one side of the power supply housing, and the battery pack is movably placed inside the power supply housing. Two sets of wires are fixedly installed on the top of the power supply housing. A sealing cover is movably placed on one side of the power supply housing, and one side of the sealing cover is movably connected to the surface of the battery pack. A slot is provided on the inner wall of the power supply housing corresponding to the position of the sealing cover. A movable groove is provided on the side of the sealing cover corresponding to the slot. A snap-fit component is movably disposed inside the movable groove, and one end of the snap-fit component is movably snapped into the inside of the slot.
[0007] The number of the card slots and card-connecting components is two sets, and the two sets of card-connecting components and card slots are arranged symmetrically along an axis.
[0008] The slot is a wedge-shaped slot. The snap-fit assembly includes a snap head, a movable rod, and a push rod. The snap head and the movable rod are movably connected inside the movable slot. One end of the snap head is movably snapped into the slot, and the end of the snap head inside the movable slot is fixedly connected to one end of the movable rod. The side of the sealing cover has a movable groove corresponding to the inside of the movable slot, which communicates with the movable slot. The push rod is movably connected inside the movable groove. One end of the push rod is movably connected to the surface of the snap head, and the other end of the push rod extends to the outside of the sealing cover.
[0009] The snap-fit assembly also includes a positioning plate, a spring element, and a limiting block. The positioning plate is fixedly installed inside the movable groove, the spring element is movably sleeved on the surface of the movable rod at a position between the snap head and the positioning plate, and the limiting block is fixedly installed at the end of the movable rod away from the snap head and the positioning plate.
[0010] The snap-fit assembly also includes a positioning plate, a spring element, and a limiting block. The positioning plate is fixedly installed inside the movable groove, the spring element is movably sleeved on the surface of the movable rod at a position between the snap head and the positioning plate, and the limiting block is fixedly installed at the end of the movable rod away from the snap head and the positioning plate.
[0011] An anti-slip push plate is fixedly connected to one end of the push rod located outside the sealing cover.
[0012] An elastic pad is fixedly installed on the inner side of the sealing cover at the position corresponding to the battery pack.
[0013] The beneficial effects of this utility model are:
[0014] By incorporating a snap-fit assembly consisting of a snap-fit head, a movable rod, a push rod, and a spring, which engages with a wedge-shaped groove on the power supply housing, the sealing cover can be quickly snapped in and released. Users can complete the operation with just one hand by pushing or pressing the push rod, without the need for any tools. This completely overcomes the technical shortcomings of previous technologies that relied on screw fastening or complex clips, resulting in cumbersome replacement processes and the need for tools, greatly improving the convenience and efficiency of battery pack replacement.
[0015] By incorporating an elastic pad on the inside of the sealing cover, a flexible contact and compression mechanism is created between the cover and the battery pack surface. This design not only provides cushioning during clamping, protecting the battery pack surface from rigid scratches or hard impacts, but also effectively fills assembly gaps, enhancing the sealing cover's stability in limiting the internal battery pack. This prevents the battery pack from shaking within the casing during vibration or movement, thus improving the overall reliability and safety of the product.
[0016] The wedge-shaped slot and corresponding locking head work together to automatically guide the locking head to retract and slide into the bottom of the slot during the insertion of the sealing cap, achieving smooth guidance and self-locking. This ingenious design makes installation simple and effortless, providing an intuitive and user-friendly experience, further enhancing the advantages of tool-free, rapid installation.
[0017] The spring element in the snap-fit assembly is pre-compressed between the snap-fit head and the positioning plate, providing a continuous and stable radial clamping force to the snap-fit head and ensuring a secure connection. Simultaneously, the limit block prevents excessive displacement of the moving rod, ensuring reliable mechanism operation. This design gives the sealing cover a high degree of resistance to accidental separation in the locked state, while easy unlocking is achieved simply by overcoming the spring force to move the push rod when replacement is needed, thus satisfying both the requirements of secure locking and convenient unlocking. Attached Figure Description
[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0019] Figure 1 This is a schematic diagram of the overall structure of a car emergency power supply that facilitates battery pack replacement, as proposed in this utility model.
[0020] Figure 2 This is a side view cross-sectional diagram of a car emergency power supply that facilitates battery pack replacement, as proposed in this utility model.
[0021] Figure 3 This utility model proposes a car emergency power supply that facilitates battery pack replacement. Figure 2 A magnified structural diagram of point A in the middle.
[0022] The attached diagram shows: 1. Power supply housing; 2. Battery pack; 3. Placement slot; 4. Wire; 5. Sealing cover; 6. Slot; 7. Movable slot; 8. Snap-fit assembly; 9. Clip head; 10. Movable rod; 11. Push rod; 12. Positioning plate; 13. Spring component; 14. Limit block; 15. Anti-slip push plate; 16. Elastic pad. Detailed Implementation
[0023] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.
[0024] Example 1
[0025] refer to Figure 1-3In this embodiment, a power supply housing 1 and a battery pack 2 are included. A placement slot 3 is provided on one side of the power supply housing 1, and the battery pack 2 is movably placed inside the power supply housing 1. The size of the placement slot 3 matches the size of the battery pack 2. Heat dissipation is not a concern here because the battery pack 2 is used only for short periods, when the car needs to be started. Therefore, the heat can be dissipated naturally when not in use. Two sets of wires 4 are fixedly installed on the top of the power supply housing 1. A sealing cover 5 is movably placed on one side of the power supply housing 1. One side of the sealing cover 5 is movably connected to the surface of the battery pack 2. A slot 6 is provided on the inner wall of the power supply housing 1 corresponding to the position of the sealing cover 5. A movable groove 7 is provided on the side of the sealing cover 5 corresponding to the slot 6. A snap-fit component 8 is movably disposed inside the movable groove 7, and one end of the snap-fit component 8 is movably snapped into the inside of the slot 6.
[0026] There are two sets of the card slots 6 and the card engaging components 8, and the two sets of card engaging components 8 and card slots 6 are arranged symmetrically along an axis.
[0027] The symmetrical design can improve the installation stability of the sealing cover 5 and improve the balance of force.
[0028] Battery pack 2 is connected to a power source via a connecting cable for power supply. Emergency power supply housing 1 is used to house battery pack 2. The connecting cable of battery pack 2 has quick-release connectors, which are existing technologies and will not be described in detail here.
[0029] Example 2
[0030] refer to Figure 1-3 In this embodiment, the slot 6 is a wedge-shaped slot, and the snap-fit assembly 8 includes a snap head 9, a movable rod 10, and a push rod 11. The snap head 9 and the movable rod 10 are both movably connected inside the movable slot 7. One end of the snap head 9 is movably snapped into the slot 6, and the end of the snap head 9 located inside the movable slot 7 is fixedly connected to one end of the movable rod 10. The side of the sealing cover 5 is provided with a movable slot corresponding to the inside of the movable slot 7, which communicates with the movable slot 7. The push rod 11 is movably connected inside the movable slot. One end of the push rod 11 is movably connected to the surface of the snap head 9, and the other end of the push rod 11 extends to the outside of the sealing cover 5.
[0031] wedge-shaped grooves Figure 3 As shown, this allows for a very stable engagement, and the wedge-shaped groove can automatically retract the clamp head 9 when it is pressed, thus achieving the purpose of automatic engagement. To remove it, the push rod 11 needs to be manually pushed, making the operation simple and quick.
[0032] Example 3
[0033] refer to Figure 1-3In this embodiment, the snap-fit assembly 8 also includes a positioning plate 12, a spring member 13, and a limiting block 14. The positioning plate 12 is fixedly installed inside the movable groove 7. The spring member 13 is movably sleeved on the surface of the movable rod 10 at a position between the snap head 9 and the positioning plate 12. The limiting block 14 is fixedly installed at the end of the movable rod 10 away from the snap head 9 and the positioning plate 12.
[0034] Here, the spring 13 provides elasticity to stably engage the locking head 9 with the locking slot 6. Then, the positioning block positions the spring 13, and the limiting block 14 is designed to separate the movable rod 10 from the positioning plate 12. The length of the entire movable slot 7 is sufficient for the locking head 9 and the movable rod 10 to move without any obstruction. Secondly, the width of the moving slot here is smaller than the width of the movable slot 7, so that the locking head 9 and the movable rod 10 move along the movable slot 7 and do not easily reach the moving slot. The moving slot is only for the push rod 11 to move.
[0035] The push rod 11 is fixedly connected to an anti-slip push plate 15 at one end outside the sealing cover 5.
[0036] The anti-slip push plate 15 can block the outside of the moving groove and seal it, improving the dustproof effect. Then, the anti-slip push plate 15 can push the push rod 11 more stably, and the opening of the moving groove will not be exposed during the entire pushing process.
[0037] An elastic pad 16 is fixedly installed on the inner side of the sealing cover 5 at the position corresponding to the battery pack 2.
[0038] The elastic pad 16 is used to improve the stability of the battery pack 2 and prevent the battery pack 2 from shaking inside the placement slot 3 after it is installed. The elastic pad 16 provides elasticity.
[0039] The working principle of this utility model is as follows:
[0040] When it is necessary to install battery pack 2, first, move battery pack 2 into the placement slot 3 of power housing 1, and then push the sealing cover 5 into the opening side of power housing 1. At this time, the snap-fit component 8 on the side of the sealing cover 5 contacts the wedge-shaped groove 6 inclined surface of the inner wall of power housing 1. Under the action of the axial force of the continued push, the inclined surface forces the snap-fit component 9 to drive the movable rod 10 to retract into the movable groove 7 and compress the spring 13 sleeved on the movable rod 10. When the sealing cover 5 is fully in place, after the snap-fit component 9 slides over the wedge-shaped surface, the compressed spring 13 releases its elastic force, pushing the movable rod 10 and the snap-fit component 9 to return to the outside, so that the snap-fit component 9 is firmly snapped into the bottom of the wedge-shaped groove 6, thereby locking the sealing cover 5. At the same time, the elastic pad 16 on the inner side of the sealing cover 5 tightly adheres to the surface of battery pack 2 to complete the pressing and buffering.
[0041] When the battery pack 2 needs to be replaced, the user only needs to press the anti-slip push plate 15 on the outside of the sealing cover 5 with his finger to move the push rod 11. The push rod 11 acts on the inclined or side surface of the latch 9, causing the latch 9 to retract into the movable groove 7 and disengage from the latch 6. The sealing cover 5 can then be pulled out directly to remove the battery pack 2 inside for replacement. During the entire process, the components of the latching assembly 8 work together within the space defined by the movable groove 7 and the moving groove to complete the locking and unlocking.
[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A car emergency power supply that facilitates battery pack replacement, characterized in that, It includes a power housing (1) and a battery pack (2). A placement slot (3) is provided on one side of the power housing (1). The battery pack (2) is movably placed inside the power housing (1). Two sets of wires (4) are fixedly installed on the top of the power housing (1). A sealing cover (5) is movably placed on one side of the power housing (1). One side of the sealing cover (5) is movably connected to the surface of the battery pack (2). A slot (6) is provided on the inner wall of the power housing (1) corresponding to the position of the sealing cover (5). A movable groove (7) is provided on the side of the sealing cover (5) corresponding to the slot (6). A snap-fit component (8) is movably arranged inside the movable groove (7). One end of the snap-fit component (8) is movably snapped into the inside of the slot (6).
2. The automotive emergency power supply for easy battery pack (2) replacement according to claim 1, characterized in that, The number of the card slot (6) and the card engaging assembly (8) is two sets, and the two sets of card engaging assemblies (8) and card slots (6) are arranged symmetrically along the axis.
3. The automotive emergency power supply for easy battery pack (2) replacement according to claim 2, characterized in that, The slot (6) is a wedge-shaped slot. The snap-fit assembly (8) includes a snap head (9), a movable rod (10), and a push rod (11). The snap head (9) and the movable rod (10) are movably connected inside the movable groove (7). One end of the snap head (9) is movably snapped into the slot (6). The end of the snap head (9) located inside the movable groove (7) is fixedly connected to one end of the movable rod (10). The side of the sealing cover (5) is provided with a movable groove that communicates with the movable groove (7) corresponding to the inside of the movable groove (7). The push rod (11) is movably connected inside the movable groove. One end of the push rod (11) is movably connected to the surface of the snap head (9). The other end of the push rod (11) extends to the outside of the sealing cover (5).
4. The automotive emergency power supply for easy battery pack (2) replacement according to claim 3, characterized in that, The snap-fit assembly (8) also includes a positioning plate (12), a spring (13), and a limiting block (14). The positioning plate (12) is fixedly installed inside the movable groove (7). The spring (13) is movably sleeved on the surface of the movable rod (10) at a position between the snap head (9) and the positioning plate (12). The limiting block (14) is fixedly installed at one end of the movable rod (10) away from the snap head (9) and the positioning plate (12).
5. A car emergency power supply for easy battery pack (2) replacement according to claim 4, characterized in that, The push rod (11) is fixedly connected to an anti-slip push plate (15) at one end outside the sealing cover (5).
6. A car emergency power supply for easy battery pack (2) replacement according to claim 5, characterized in that, An elastic pad (16) is fixedly installed on the inner side of the sealing cover (5) at the position corresponding to the battery pack (2).
