Battery box for scooter

Abstract

The utility model belongs to the technical field of scooter battery boxes, and particularly relates to a scooter battery box. A battery box for a scooter comprises an upper cover and a lower cover, the upper cover is opened downwards to form a lower opening, the lower cover is opened upwards to form an upper opening, the upper opening of the lower cover is of a high-back and low-front structure, the lower opening of the upper cover is of a high-back and low-front structure corresponding to the upper opening of the lower cover, and the upper cover and the lower cover abut against each other and are fixedly connected through a fastener. The upper end of the front edge of the lower cover upper opening is in concave-convex fit with the lower end of the front edge of the upper cover lower opening. The utility model has the advantages that the battery box is convenient to assemble, and the labor intensity of operators is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of battery box technology for personal mobility vehicles, and particularly relates to a battery box for personal mobility vehicles. Background Technology

[0002] Chinese patent application number 200620018053.7 discloses an automatic connection mechanism for the control line of a mobility scooter, and Chinese patent application number 200520128176.1 discloses a quick-assembly and disassembly structure for a mobility scooter. Both patents indicate that the battery box of the mobility scooter mainly includes an upper cover and a lower cover. The upper cover has a handle for easy lifting of the entire battery box, and the lower cover has two battery compartments for placing batteries. The upper and lower covers are fixed together by screws.

[0003] In the above-described method, when fixing the upper and lower covers, the operator first places the upper cover on top of the lower cover and adjusts their positional relationship so that the threaded hole of the upper cover aligns with the through hole of the lower cover. The operator then needs to prevent relative movement between the upper and lower covers and inserts the screw upwards through the through hole of the lower cover to pre-fit with the threaded hole of the upper cover. When tightening the screw, because the contact surfaces of the upper and lower covers are both flat, relative movement can easily occur. Therefore, the operator must always ensure that the upper and lower covers do not move relative to each other. The operator must repeat the above steps when tightening the next screw to prevent misalignment between the upper and lower covers and to ensure the threaded hole and through hole are aligned. This makes installing the battery box upper and lower covers inconvenient and labor-intensive. Utility Model Content

[0004] The purpose of this utility model is to provide a battery box assembly structure for a mobility scooter that facilitates battery box assembly and reduces the labor intensity of operators.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a battery box for a personal mobility vehicle, comprising an upper cover and a lower cover, wherein the upper cover opens downward to form a lower opening, and the lower cover opens upward to form an upper opening, wherein the upper opening of the lower cover has a rear-high and front-low structure, and the lower opening of the upper cover forms a rear-high and front-low structure corresponding to the upper opening of the lower cover, and the two abut against each other and are fixedly connected by fasteners, wherein the upper front edge of the upper opening of the lower cover and the lower front edge of the lower opening of the upper cover are in a concave-convex fit.

[0006] When fixing the upper and lower covers, the operator places the upper cover on the lower cover so that the lower opening of the upper cover abuts against the upper opening of the lower cover; adjust the position of the upper and lower covers so that the lower front edge of the upper cover contacts and fits with the upper front edge of the lower cover; then the operator uses fasteners to fix the upper and lower covers together.

[0007] This solution uses a convex-concave fit between the lower front edge of the upper cover and the upper front edge of the lower cover to restrict the positional relationship between the upper and lower covers in the left and right directions when positioning them. This makes it easier for operators to control the relative position between the upper and lower covers, and makes it more convenient to fix the fasteners, thereby reducing the labor intensity of the operators.

[0008] The lower front edge of the upper cover and the upper front edge of the lower cover have a concave-convex fit. Alternatively, the lower front edge of the upper cover can form a concave surface, and the lower cover can have a convex surface that mates with the concave surface; or the lower front edge of the upper cover can form a convex surface, and the lower cover can have a concave surface that mates with the convex surface. The convex and concave surfaces can be inclined or curved surfaces, and there can be one set or multiple sets of convex and concave surfaces.

[0009] Preferably, the rear edge of the upper opening of the lower cover is higher than the front edge of the upper opening of the lower cover, and the two sides of the upper opening of the lower cover are inclined.

[0010] The rear edge of the upper opening of the lower cover is higher than the front edge of the upper opening of the lower cover, and the two sides of the upper opening of the lower cover are inclined to limit the battery and facilitate the placement of the battery.

[0011] Preferably, the upper end of the front edge of the lower cover is recessed downward to form a concave surface, and the lower end of the front edge of the upper cover protrudes downward to form a convex surface that matches the concave surface.

[0012] Typically, conventional battery cases are designed with screws screwed in from the bottom up, allowing the screws to be located on the underside of the lower cover, protecting them from rain and rust. This design, by making the upper front edge of the lower cover concave, allows for a shorter through-hole on the lower front edge of the lower cover, making it easier for operators to screw the screws upwards.

[0013] Preferably, both the concave and convex surfaces are curved surfaces.

[0014] The curved surface allows for better positioning between the top and bottom covers.

[0015] Preferably, the lower rear edge of the upper cover is provided with a positioning part extending in the left-right direction; when the upper cover and the lower cover are fixed, the inner side of the positioning part contacts the outer side of the upper rear edge of the lower cover.

[0016] The positioning part contacts the lower cover to position the front and rear of the upper and lower covers, making it easier for operators to tighten screws; at the same time, the inner side of the positioning part contacts the outer side of the upper rear edge of the lower cover, so that the positioning part of the upper cover covers the rear edge of the lower cover, thus providing a waterproof and rainproof function.

[0017] Preferably, the upper end of the rear edge of the lower cover is provided with a mating part extending to the rear side, the mating part and the positioning part are in contact with each other, and the surfaces of the mating part and the positioning part in contact with each other are both arc surfaces.

[0018] The curved surfaces of the mating parts and the positioning parts can enhance the positioning of the upper and lower covers in the left and right directions, resulting in a better positioning effect.

[0019] Preferably, the lower cover has a laterally outwardly extending widened portion at its circumferential edge, and the widened portion has a plurality of upwardly extending first fixing portions. The first fixing portions have upwardly opening fixing holes and through holes coaxially arranged with and communicating with the fixing holes. The upper cover has a downwardly extending second fixing portion, and the second fixing portion has a downwardly opening threaded hole for threaded engagement with the fastener. When the upper cover and the lower cover are fixed, the circumferential outer wall of the second fixing portion contacts the hole wall of the fixing hole.

[0020] The widened portion facilitates the installation of the first fixing part on the lower cover; the circumferential outer wall of the second fixing part contacts the wall of the fixing hole, and the second fixing part can extend into the fixing hole to position the threaded hole, making it convenient for operators to install screws.

[0021] Preferably, when the upper cover and the lower cover are fixed, the lower inner sides of the left and right edges of the lower opening of the upper cover are in contact with the outer sides of the widened portions on the left and right sides of the lower cover.

[0022] The lower inner sides of the left and right edges of the upper cover contact the outer sides of the widened portions on the left and right sides of the lower cover, thereby restricting the positional relationship between the upper and lower covers in the left and right directions, thus further facilitating the operator to fix the upper and lower covers together.

[0023] This utility model has the advantages of facilitating the assembly of the battery box for personal transportation and reducing the labor intensity of operators. Attached Figure Description

[0024] Figure 1 This is a structural diagram showing the upper and lower covers when they are fixed in place.

[0025] Figure 2 This is a schematic diagram of the structure of the lower cover of this utility model.

[0026] Figure 3 This is a structural diagram from another perspective when the upper and lower covers are fixed.

[0027] Figure 4 for Figure 3 A magnified view of point A.

[0028] Figure 5 for Figure 3 Enlarged view of point B.

[0029] Figure 6 for Figure 1 A sectional view.

[0030] Reference numerals: 1. Top cover; 2. Bottom cover; 21. Widened part; 211. Concave surface; 3. Fitting part; 4. Positioning part; 5. Second fixing part; 51. Threaded hole; 6. First fixing part; 61. Through hole; 62. Fixing hole; 7. Fastener. Detailed Implementation

[0031] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

[0032] like Figure 1 and Figure 2 As shown, this embodiment discloses a battery box housing assembly structure for a mobility scooter, including an upper cover 1 and a lower cover 2. The lower cover 2 has an upward-opening upper opening, and the upper cover 1 has a downward-opening lower opening. The lower opening of the upper cover 1 and the upper opening of the lower cover 2 can abut against each other to form a battery compartment chamber for placing the battery. The front edge of the lower opening of the upper cover 1 is lower than the rear edge of the lower opening of the upper cover 1, and the front edge of the upper opening of the lower cover 2 is lower than the rear edge of the upper opening of the lower cover 2; and the left and right sides of the lower opening of the upper cover 1 and the upper opening of the lower cover 2 are both inclined. The front edge and the left and right sides of the lower cover 2 are provided with a laterally outwardly extending widened portion 21. The widened portion 21 at the front edge of the lower cover 2 is recessed downward to form a concave surface 211. The front edge of the upper cover 1 is provided with a downwardly protruding convex surface (not shown in the figure) that cooperates with the concave surface 211; both the concave surface 211 and the convex surface are arc surfaces.

[0033] like Figure 2 , Figure 3 and Figure 5 As shown, the lower cover 2 has two rearwardly extending mating parts 3 at the upper rear edge of the battery compartment. The width of the mating parts 3 gradually decreases from the middle to the left and right sides so that the outer surface of the mating parts 3 is an arc surface. The upper cover 1 has a positioning part 4 at the lower rear side that is set downward and extends in the left and right direction. When the upper cover 1 and the lower cover 2 are closed, the inner surface of the positioning part 4 contacts the outer surface of the mating part 3, and the surfaces that contact each other are arc surfaces.

[0034] like Figures 2 to 4 As shown, when the upper cover 1 and the lower cover 2 are closed, the inner sides of the left and right edges of the lower opening of the upper cover 1 contact and cooperate with the outer sides of the upper ends of the widened portions 21 on the left and right sides of the lower cover 2.

[0035] like Figure 2 , Figure 5 and Figure 6As shown, the lower cover 2 and its mating part 3 are provided with several upwardly extending first fixing parts 6. The upper end of each first fixing part 6 is provided with an upwardly opening fixing hole 62. The first fixing part 6 is also provided with a through hole 61 extending vertically, which communicates with and is coaxially arranged with the fixing hole 62. The upper cover 1 is provided with a downwardly extending second fixing part 5 that corresponds one-to-one with the first fixing parts 6. The second fixing part 5 is provided with a downwardly opening threaded hole 51. When the upper cover 1 and the lower cover 2 are closed, the lower end of the second fixing part 5 can extend into the fixing hole 62, and the circumferential outer wall of the second fixing part 5 contacts the circumferential inner wall of the fixing hole 62. The threaded hole 51 is fitted with a fastener 7, which passes upward through the through hole and is threaded into the threaded hole 51 of the second fixing part 5. The fastener 7 is a bolt.

[0036] When assembling the upper cover 1 and lower cover 2 of the battery box, the operator first moves the upper cover 1 above the lower cover 2, then makes the inner wall of the positioning part 4 contact the outer wall of the mating part 3, and flips the entire upper cover 1 forward with the positioning part 4 as the fulcrum, so that the lower opening of the upper cover 1 and the upper opening of the lower cover 2 abut. Adjust the left and right position of the upper cover 1 so that the lower inner side of the lower edge of the left and right sides of the lower opening of the upper cover 1 contacts the outer side of the widened part 21 on the left and right sides of the lower cover 2. At this time, the lower end of the second fixing part 5 extends into the fixing hole 62, and the concave surface 211 contacts the convex surface, thereby achieving the pre-positioning between the entire upper cover 1 and the lower cover 2. The operator passes the fasteners 7 upward through the through hole 61 and screws them one by one into the threaded holes 51, thereby completing the assembly between the upper cover 1 and the lower cover 2.

Claims

1. A battery case for a scooter, comprising an upper cover and a lower cover, the upper cover being downwardly open to form a lower opening, and the lower cover being upwardly open to form an upper opening, characterized in that: The upper opening of the lower cover is in a rear-high front-low structure, the lower opening of the upper cover is in a rear-high front-low structure corresponding to the upper opening of the lower cover, and the upper opening of the lower cover and the lower opening of the upper cover abut and are fixedly connected by fasteners.

2. The battery case for a scooter according to claim 1, characterized by: The rear edge of the upper opening of the lower cover is higher than the front edge of the upper opening of the lower cover, and the two side edges of the upper opening of the lower cover are inclined.

3. The battery case for a scooter according to claim 1, characterized by: The upper end of the front edge of the lower cover is concave downward to form a concave surface, and the lower end of the front edge of the upper cover is convex upward to form a convex surface matched with the concave surface.

4. The battery case for a scooter according to claim 3, characterized by: The concave surface and the convex surface are both arc surfaces.

5. The battery box for a scooter according to claim 1 or 2 or 3 or 4, characterized in that: The lower end of the rear edge of the upper cover is provided with a positioning part extending in the left-right direction; when the upper cover and the lower cover are fixed, the inner side surface of the positioning part is in contact with the outer side surface of the upper end of the rear edge of the lower cover.

6. The battery case for a scooter according to claim 5, characterized by: The upper end of the rear edge of the lower cover is provided with a matching part extending to the rear side, the matching part and the positioning part are in contact with each other, and the surfaces in contact with each other of the matching part and the positioning part are both arc surfaces.

7. The battery box for a scooter according to claim 1 or 2 or 3 or 4, characterized in that: The circumferential edge of the upper opening of the lower cover is provided with a widened part extending outward in the lateral direction, the widened part is provided with a plurality of first fixing parts extending upward, the first fixing parts are provided with fixing holes opening upward and through holes coaxially arranged with the fixing holes and in communication with each other; the upper cover is internally provided with a second fixing part extending downward, the second fixing part is provided with a threaded hole opening downward and used for threadedly cooperating with the fastener; when the upper cover and the lower cover are fixed, the circumferential outer wall of the second fixing part is in contact with the hole wall of the fixing hole.

8. The scooter battery pack of claim 7, wherein: When the upper cover and the lower cover are fixed, the inner side surface of the lower end of the left and right side edges of the lower opening of the upper cover is in contact with the outer side surface of the widened part of the left and right sides of the lower cover.

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