A mobile power supply stacking structure

Abstract

The utility model belongs to the mobile power supply technical field discloses a kind of mobile power supply stacking structure, including power supply shell, foot pad and handle, foot pad is located at the bottom of power supply shell, and protrude from the bottom surface of power supply shell;The top of power supply shell is symmetrically provided with containing groove on both sides, handle is located in one side of containing groove, and is fixedly connected with the shell of power supply shell, handle and containing groove form the limiting slot for containing foot pad by enclosing;Handle includes inner plate, framework and decorative plate, both ends of decorative plate are fixedly connected with power supply shell respectively, inner plate is the "L" type structure, and is located at the inboard of decorative plate, inner plate and decorative plate form cavity by enclosing, framework is located in cavity, for supporting inner plate and decorative plate;The protruding foot pad of the bottom of the upper mobile power supply in the present scheme can be embedded into the limiting slot of lower power supply, the positioning of upper and lower power supply is positioned by the limiting effect of limiting slot to foot pad;The utility model solves the limiting problem when existing power supply stacks.

Description

Technical Field

[0001] This solution belongs to the field of mobile power technology, specifically involving a mobile power stacking structure. Background Technology

[0002] The rise of outdoor camping, road trips, and wilderness photography has brought portable power banks into the public eye. As users' demand for power and functionality from portable power banks increases, their size and weight have also increased, requiring more space for placement.

[0003] For example, a portable power bank is disclosed in existing publication (announcement) number CN116488282A, including a housing with a recessed storage groove at the upper end and a mounting hole at the bottom of the storage groove; a battery assembly disposed within the housing; a handle rotatably mounted to the housing and rotatable to be stored in the storage groove; a lighting assembly mounted on the handle and electrically connected to the battery assembly; a positioning assembly disposed in the mounting hole, the positioning assembly being elastic and partially extending out of the mounting hole; and at least two positioning grooves disposed in the handle, such that when the positioning assembly engages with the positioning grooves, the relative position of the handle and the housing can be locked.

[0004] The aforementioned portable power banks can reduce space usage by stacking them. Most existing outdoor portable power banks are stacked directly or using retaining pins. Direct stacking does not restrain the products, making them prone to slipping and damage during transportation or use, posing hidden safety hazards. While using retaining pins can restrain the products, these pins are not functional structures within the product itself, and when used individually, they are redundant protrusions that detract from the aesthetics. Utility Model Content

[0005] The purpose of this solution is to provide a mobile power bank stacking structure to solve the limitation problem in existing power bank stacking.

[0006] To achieve the above objectives, this solution provides a mobile power bank stacking structure, including a power bank housing, foot pads, and a handle. The foot pads are located at the bottom of the power bank housing and protrude from the bottom surface of the power bank housing. The top two sides of the power bank housing are symmetrically provided with receiving grooves. The handle is located on one side of the receiving groove and is fixedly connected to the outer shell of the power bank housing. The handle and the receiving grooves together form a limiting groove for receiving the foot pads.

[0007] The principle and effect of this solution are as follows: When power banks need to be stacked, the protruding feet at the bottom of the upper power bank can be embedded in the limiting groove at the top of the lower power bank, which is surrounded by the handle and the receiving slot. The limiting groove limits the feet and positions the upper and lower power banks. This avoids the safety hazards of slipping and damage during transportation or use caused by direct stacking without positioning. At the same time, there is no need to set additional limiting pins or other protruding structures that are not useful to the product itself, so that a single structure can have multiple uses.

[0008] Furthermore, the cross-section of the receiving groove is an "L" shaped structure, and an arc-shaped transition surface is provided at the corner, the radius of which is 3mm-5mm; the edge of the receiving groove is chamfered, with a chamfer angle of 30°-60°.

[0009] The principle and effect of this solution are as follows: when stacking, the upper power supply foot pad is embedded into the "L"-shaped receiving groove of the lower power supply. The groove body is used for lateral limiting, the arc transition surface guides and buffers, and the chamfer assists in embedding, so as to position it and reduce the collision of the foot pad.

[0010] Furthermore, the dimensions of the limiting groove are matched with the dimensions of the foot pad; after the foot pad contacts the limiting groove, the left-right gap between the foot pad and the limiting groove is 1.8mm, and the front-back gap is 1.5mm.

[0011] The principle and effect of this solution are as follows: after the size of the limiting groove is adapted to the foot pad, the gap is 1.8mm on the left and right and 1.5mm in the front and back. When the foot pad of the upper power supply is inserted into the limiting groove of the lower power supply, it not only retains a small amount of room for movement to avoid assembly jamming, but also restricts the lateral and longitudinal displacement of the foot pad through gap constraint, so as to avoid the stacking loose due to excessive gap or the assembly difficulty due to insufficient gap.

[0012] Furthermore, the handle includes an inner plate, a frame, and a decorative plate. The two ends of the decorative plate are fixedly connected to the power supply housing. The inner plate has an "L" shaped structure and is located inside the decorative plate. The two ends of the inner plate are detachably connected to the decorative plate. The inner plate and the decorative plate enclose a cavity. The frame is located inside the cavity and is used to support the inner plate and the decorative plate.

[0013] The principle and effect of this solution is that it allows the handle to retain its lifting function while also forming a limiting groove in conjunction with the receiving groove, and adapting to the foot pads to achieve stacking positioning.

[0014] Furthermore, the two ends of the inner panel are connected to the decorative panel by snap fasteners; the inner panel and the decorative panel are respectively connected to the frame by bolts.

[0015] The principle and effect of this solution are as follows: The principle of this solution is to assemble the various parts of the handle and strengthen the connection between the frame and the inner plate and decorative plate through bolts, so that the handle remains structurally stable when it is lifted and stacked.

[0016] Furthermore, the inner plate has an arc-shaped transition surface at the corner, and the radius of the arc-shaped transition surface is 3mm-5mm.

[0017] The principle and effect of this solution are as follows: the curved transition surface avoids the wear and tear problem of right-angle corners, improves hand grip comfort when lifting, and avoids scratches.

[0018] Furthermore, the radius of curvature of the receiving groove and the arc-shaped transition surface of the inner plate are equal.

[0019] The principle and effect of this solution is that the radius of curvature of the receiving groove and the arc transition surface of the inner plate are equal, so that when the upper power foot pad is embedded in the limiting groove, the friction loss between the foot pad and the transition surface can be reduced.

[0020] Furthermore, the foot pad is a rubber foot pad.

[0021] The principle and effect of this solution is to enhance the friction between the material and the inner wall of the limiting groove, thereby preventing slippage.

[0022] Furthermore, the number of foot pads is at least two, and they are symmetrically distributed along the length of the power supply casing.

[0023] The principle and effect of this solution is that the two symmetrical foot pads can improve the stability of the upper and lower power supplies.

[0024] Furthermore, the bottom of the power supply housing is also provided with a pad, the foot pad has a threaded hole, the threaded hole is provided with a bolt, and the foot pad and the pad are connected by bolts.

[0025] The principle and effect of this solution is to fix the foot pads to the power supply casing. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of a mobile power supply stacking structure according to the present invention. Figure 1 ; Figure 2 This is a schematic diagram of a mobile power supply stacking structure according to the present invention. Figure 2 ; Figure 3 This is a cross-sectional view of a mobile power supply stacking structure according to the present invention. Figure 1 ; Figure 4 This is a structural schematic diagram of the frame and pad of this utility model; Figure 5 This is a schematic diagram of the assembly of the foot pad and the receiving groove of this utility model.

[0027] Figure 6 A cross-sectional view of the mobile power supply stacking structure of this utility model. Figure 2 ; Figure 7 for Figure 6 A magnified view of a portion of point C in the middle; Figure 8 for Figure 6 A magnified view of a portion of point D.

[0028] The corresponding labels in the attached diagram are named as follows: power supply casing 1, receiving groove 11, support plate 111, foot pad 2, fixed foot pad 21, movable foot pad 22, groove 221, through groove 222, handle 3, inner plate 31, frame 32, decorative plate 33, pad plate 4, limiting component 5, pressing block 51, airbag 52, suction cup 53, air outlet end 531, sealing ball 54, spring 55. Detailed Implementation

[0029] The following will describe the concept and technical effects of this utility model clearly and completely with reference to the embodiments, so as to fully understand the purpose, features and effects of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Example 1: Please see Figure 1 and Figure 2This embodiment discloses a power bank stacking structure, suitable for use in outdoor camping, road trips, and wilderness photography scenarios where power banks need to be stacked and stored. The overall structure includes a power bank housing 1, feet 2, and a handle 3. The power bank housing 1 is injection molded from ABS+PC alloy material, and has a rectangular structure with a length of 46.10cm, a width of 36.30cm, and a height of 31.68cm. This material combines impact resistance and lightweight characteristics, making it suitable for complex outdoor environments. The feet 2 are located at the bottom of the power bank housing 1 and protrude from the bottom surface of the housing 1. The protrusion is approximately 1-3mm. This height ensures that the feet 2 can be stably embedded in the limiting grooves of the power banks below when stacked, while also preventing excessive protrusion from causing individual power banks to wobble when placed. The bottom of the power supply casing 1 is also provided with a pad 4, which is made of Q235 steel plate. It is fixedly connected to the inner bottom wall of the power supply casing 1 by screws, with four screws corresponding to the four corners of the bottom of the power supply casing 1, enhancing the load-bearing strength of the bottom of the power supply casing 1. The foot pads 2 have threaded holes, and are connected to the pad 4 by bolts. The bolt heads are embedded inside the foot pads 2 (not protruding from the bottom surface of the foot pads 2), ensuring a stable connection between the foot pads 2 and the pad 4 while preventing the bolt heads from affecting the stability of the foot pads 2. In this embodiment, the foot pads 2 are preferably made of nitrile rubber, which has excellent elasticity and wear resistance. There are at least two foot pads 2, and in this embodiment, two are preferably provided. The two foot pads 2 are symmetrically distributed along the length of the power supply casing 1, specifically located on both sides of the bottom of the power supply casing 1. The distance between adjacent foot pads 2 along the length of the power supply casing 1 is 331-332 mm, and the center of symmetry coincides with the length center of the power supply casing 1, enhancing the stability of the vertically moving power supply and preventing tilting due to a shift in the center of gravity after stacking.

[0030] Please see Figures 1-4The top two sides of the power supply casing 1 are symmetrically provided with receiving grooves 11. The receiving grooves 11 are integrally formed with the power supply casing 1 through an integrated injection molding process. The cross-section of the receiving grooves 11 is an "L" shape, with the horizontal section length of the "L" shape set at 61-62mm and the vertical section height set at 59-60mm. This size design can adapt to the shape of the foot pads 2, ensuring that the foot pads 2 are embedded. The corner of the receiving groove 11 is provided with an arc-shaped transition surface, the radius of which is set at 3-5mm (preferably 4mm in this embodiment). This arc-shaped transition surface is integrally processed by the curved surface mold during injection molding, which can avoid hard collision between the foot pads 2 and the corner of the receiving groove 11 when embedded, reducing the wear of the foot pads 2. At the same time, the edge of the groove opening of the receiving groove 11 is provided with a chamfer, the chamfer angle is set at 30°-60° (preferably 45° in this embodiment). The chamfer is processed by an integrated injection molding process, which can guide the foot pads 2 of the mobile power supply above to quickly embed into the limiting groove, avoiding embedding jamming due to the sharp opening of the groove. The handle 3 is located on one side of the receiving groove 11 and is fixedly connected to the outer shell 12 of the power supply shell 1. Specifically, it is fixed with M4-M6 self-tapping screws, with 4 screws symmetrically distributed at both ends of the handle 3 (2 at each end) to ensure that the handle 3 is firmly connected to the power supply shell 1 and to prevent it from falling off when stacked or lifted. The handle 3 and the receiving groove 11 form a limiting groove for accommodating the foot pad 2. The size of the limiting groove matches the size of the foot pad 2: In this embodiment, the length of the foot pad 2 is set to 20-25mm and the width is set to 15-18mm. Correspondingly, the length of the limiting groove in the left-right direction is the length of the foot pad 2 + 1.8mm, and the width in the front-back direction is the width of the foot pad 2 + 1.5mm. That is, after the foot pad 2 contacts the limiting groove, the left-right gap is 1.8mm and the front-back gap is 1.5mm. This gap not only retains a small amount of room for movement to avoid assembly jamming due to size errors, but also restricts the lateral and longitudinal displacement of the foot pad 2 through the gap constraint to prevent loosening after stacking.

[0031] Furthermore, the handle 3 includes an inner plate 31, a frame 32, and a decorative plate 33: the decorative plate 33 is made of the same material as the power supply housing 1, and its two ends are fixedly connected to the power supply housing 1 by the aforementioned self-tapping screws, which ensures both aesthetics and structural strength; the inner plate 31 has an "L" shaped structure, is made of plastic injection molding, and is located inside the decorative plate 33, with both ends of the inner plate 31 connected to the decorative plate 33 by snap-fit. Specifically, the inner panel 31 has elastic hooks integrally formed at both ends. The thickness of the elastic hooks is 1-1.2mm and the hook length is 2-3mm. The decorative panel 33 has corresponding slots that fit the elastic hooks. The depth of the slots is 3-4mm. The inner panel 31 and the decorative panel 33 can be detachably connected by inserting the hooks into the slots, which facilitates subsequent maintenance and replacement. The inner panel 31 and the decorative panel 33 form a cavity with a thickness of 5-8mm. The frame 32 is located in the cavity and its shape matches the cavity. The inner panel 31 and the decorative panel 33 are connected to the frame 32 by M3-M4 bolts. Each component has 2-3 bolt holes with a depth of 5-6mm. The bolt connection strengthens the connection between the frame 32 and the inner panel 31 and the decorative panel 33, forming a reinforcing rib structure. This ensures that the handle 3 remains structurally stable when lifted and stacked, preventing deformation due to stress. The inner plate 31 has an arc-shaped transition surface at the corner, with a radius of 3-5mm (preferably 4mm in this embodiment). This arc-shaped transition surface is processed by hot pressing, which improves hand grip comfort when pulling the handle 3 and avoids hand scratches from right-angle corners. On the other hand, when the foot pad 2 is embedded in the limiting groove, it reduces the hard friction between the corner of the inner plate 31 and the foot pad 2, extending the service life of the foot pad 2. At the same time, the radius of curvature of the receiving groove 11 and the arc-shaped transition surface of the inner plate 31 are equal (both are 4mm). Both are processed using the same set of curved surface mold parameters to ensure that when the foot pad 2 is embedded in the limiting groove, it can smoothly fit along the transition surface with consistent curvature, avoiding excessive local stress on the foot pad 2 due to mismatch in the curvature of the transition surface and reducing the risk of wear.

[0032] Please see Figure 5 In practical use, when multiple power banks need to be stacked, the bottom foot pad 2 of the upper power bank is aligned with the limiting groove formed by the handle 3 and the receiving groove 11 on the top of the lower power bank. The upper power bank is then slowly lowered, allowing the foot pad 2 to be inserted into the limiting groove along the chamfer of the receiving groove 11 until it is flush with the inner wall of the limiting groove. This process avoids the safety hazard of slippage caused by traditional direct stacking by limiting the foot pad 2 through the limiting groove. At the same time, it eliminates the need for additional protruding structures such as limiting pins, maintaining the integrity of the power bank's appearance.

[0033] Example 2: The difference between this embodiment and the previous embodiment is that, in the aforementioned solution, the foot pad 2 and the limiting groove are designed to work together. However, to preserve space for movement and avoid assembly jamming due to dimensional errors, there is a 1.8mm gap on the left and right sides and a 1.5mm gap on the front and back after the foot pad 2 contacts the limiting groove. This means that when transporting multiple stacked power supplies, vibration and bumps during transport can still cause relative displacement between adjacent power supplies. When the center of gravity shifts beyond the safe range, there is still a risk of tipping over due to the multiple stacks. Secondly, since the power supplies used in this embodiment are mainly suitable for outdoor scenarios, some ground surfaces are tilted, and the bottom of the foot pad is generally horizontal, making it easy to place unstable. Therefore, this embodiment further improves the foot pad to solve the above problems.

[0034] Please see Figure 6 This embodiment is mainly aimed at Figure 6 Improvements are made at points C and D. Please refer to 7. The foot pad 2 includes a fixed foot pad 21 and a movable foot pad 22. The fixed foot pad 21 is fixedly connected to the pad plate 4 by bolts. The fixed foot pad 21 has a hollow structure. The outer wall of the movable foot pad 22 is slidably connected to the inner wall of the fixed foot pad 21. The movable foot pad 22 has a groove 221, and the side wall of the movable foot pad 22 has a through groove 222, which communicates with the groove 221. A support plate 111 (e.g., ...) is fixedly installed in the receiving groove 11. Figure 8 As shown), the support plate 111 is used to support the movable foot pad 22, so that after the movable foot pad 22 is inserted into the limiting groove, the gravity of the power supply itself drives the fixed foot pad 21 to continue to move downward, so that the movable foot pad 22 slides into the fixed foot pad 21, and most of the area of ​​the through groove 222 remains on the outside of the fixed foot pad 21.

[0035] Please continue reading. Figure 7 It also includes a limiting component 5, which includes a pressing block 51 and an airbag 52. The airbag 52 is a repositionable airbag after deformation under force (similar to a pressable airbag). After being pressed, the airbag 52 can return to its original shape. The airbag 52 has an air inlet (not shown) with a one-way valve, which only allows the airbag 52 to draw in external gas by relying on the internal negative pressure when it is repositioned. The airbag 52 is located in the through groove 222 of the movable foot pad 22, and the pressing block 51 is located in the fixed foot pad 21. The pressing block 51 is used to press the airbag 52, causing the airbag 52 to deform. The side of the airbag 52 closest to the through groove 222 deforms and expands to the outside of the through groove 222, thereby abutting against the side wall of the limiting groove, filling the original gap, and preventing the upper and lower power supplies from shifting during transportation.

[0036] Furthermore, the fixed foot pad 21 is equipped with a suction cup 53. The suction cup 53 will not move with the movable foot pad 22. The suction cup 53 is connected to the airbag 52 through a flexible pipe, and a one-way valve is provided on the pipe so that the gas in the airbag 52 can only flow to the suction cup 53 in one direction. The suction cup 53 is provided with a constricted air outlet 531, which is connected to the end of the pipe. The air outlet 531 is provided with a sealing ball 54 and a spring 55. The sealing ball 54 is fixedly connected to one end of the spring 55, and the free end of the spring 55 is fixedly connected to the inner wall of the air outlet 531. The sealing ball 54 is an iron ball, and the support plate 111 is a magnetic support plate 55. The support plate 111 can attract the sealing ball 54, so that the sealing ball 54 abuts against the sealing air outlet 531. When the airbag 52 is squeezed, the gas will not be squeezed out from the air outlet 531. That is, when the upper and lower power supplies overlap, the air outlet 531 will not release gas, but will only cause the airbag 52 to expand, thereby filling the adjacent gap. When the power supply is used alone, the movable foot pad 22 is in direct contact with the ground, causing it to retract into the fixed foot pad 21. This allows the suction cup 53 to contact the ground. As the sealing ball 54 loses the attraction of the support plate 111, it moves away from the air outlet 531, which is in the open state. When the airbag 52 is squeezed by the pressing block 51, gas is ejected from the air outlet 531. This blows air onto the ground when the suction cup 53 is in contact with it, thus removing dust and increasing the contact area between the suction cup 53 and the ground, making it more stable.

[0037] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A mobile power bank stacking structure, comprising a power bank housing (1), feet (2), and a handle (3), characterized in that, The foot pad (2) is located at the bottom of the power supply housing (1) and protrudes from the bottom surface of the power supply housing (1); the top two sides of the power supply housing (1) are symmetrically provided with receiving grooves (11), the handle (3) is located on one side of the receiving groove (11) and is fixedly connected to the housing (12) of the power supply housing (1), and the handle (3) and the receiving groove (11) together form a limiting groove for receiving the foot pad (2).

2. The mobile power supply stacking structure according to claim 1, characterized in that: The cross-section of the receiving groove (11) is an "L" shaped structure, and an arc transition surface is provided at the corner. The radius of the arc transition surface is 3mm-5mm. The groove opening edge of the receiving groove (11) is chamfered, and the chamfer angle is 30°-60°.

3. The mobile power supply stacking structure according to claim 1, characterized in that: The size of the limiting groove matches the size of the foot pad (2); after the foot pad (2) contacts the limiting groove, the left and right gap between the foot pad (2) and the limiting groove is 1.8mm, and the front and back gap is 1.5mm.

4. The mobile power supply stacking structure according to claim 2, characterized in that: The handle (3) includes an inner plate (31), a frame (32) and a decorative plate (33). The two ends of the decorative plate (33) are fixedly connected to the power supply housing (1). The inner plate (31) has an "L" shaped structure and is located inside the decorative plate (33). The two ends of the inner plate (31) are detachably connected to the decorative plate (33). The inner plate (31) and the decorative plate (33) enclose a cavity. The frame (32) is located in the cavity and is used to support the inner plate (31) and the decorative plate (33).

5. A mobile power supply stacking structure according to claim 4, characterized in that: The inner panel (31) is connected to the decorative panel (33) at both ends by snap fasteners; the inner panel (31) and the decorative panel (33) are respectively connected to the frame (32) by bolts.

6. The mobile power supply stacking structure according to claim 4, characterized in that: The inner plate (31) has an arc-shaped transition surface at the corner, and the radius of the arc-shaped transition surface is 3mm-5mm.

7. A mobile power supply stacking structure according to claim 4, characterized in that: The radius of curvature of the arc-shaped transition surface between the receiving groove (11) and the inner plate (31) is equal.

8. The mobile power supply stacking structure according to claim 1, characterized in that: The foot pad (2) is a rubber foot pad.

9. A mobile power supply stacking structure according to claim 8, characterized in that: The number of foot pads (2) is at least two, and they are symmetrically distributed along the length of the power supply casing (1).

10. A mobile power supply stacking structure according to claim 8, characterized in that: The bottom of the power supply housing (1) is also provided with a pad (4), the foot pad (2) is provided with a threaded hole, the threaded hole is provided with a bolt, and the foot pad (2) and the pad (4) are connected by bolts.

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