Battery box fixing structure for scooter

Abstract

The utility model relates to a kind of electric scooter, specifically relates to a kind of scooter battery box fixing structure.A kind of scooter battery box fixing structure, including box body and the shell fixed on the scooter body, shell is equipped with the battery cabin of upward opening, the front side lower edge of the battery cabin is equipped with the positioning slot extending forward, the lower edge of the box body front end is equipped with the positioning part extending forward, the rear part of the box body is deviated upper end and is equipped with the cooperation part extending backward, the rear end of the battery cabin is equipped with the limiting part extending along front-back direction, the lower part of the battery cabin front end is equipped with at least two side-by-side and along front-back direction extending movable column, the movable column is matched with compression spring, the box body front end is equipped with the cooperation slot corresponding with movable column rear end.The utility model has the advantages that battery box is easy to assemble and disassemble, and the stability of the battery box during use of the scooter can be guaranteed, and effective electrical connection can be guaranteed.

Description

Technical Field

[0001] This utility model relates to an electric mobility scooter, specifically to a battery box fixing structure for the mobility scooter. Background Technology

[0002] Chinese patent CN217361798U discloses a mobility scooter with a detachable battery. The scooter body has a pair of downward-grooved positioning slots, the bottom of the battery box has a downward-protruding step, the scooter body and the battery box have interlocking components, and the lower front side of the battery box is provided with a locking structure between the battery box and the scooter body.

[0003] Although the above-mentioned mobility scooter is equipped with a locking structure, the locking gap of the locking structure is relatively large. After the mobility scooter passes through bumpy roads, brakes suddenly, and goes up and down slopes, the locking structure will gradually loosen. This will cause the battery box to bounce up and down during the use of the mobility scooter, and the connector components will be prone to poor contact, posing a risk of power failure. Utility Model Content

[0004] The purpose of this utility model is to provide a battery box fixing structure for a mobility scooter that facilitates battery box assembly and disassembly, ensures the stability of the battery box during use, and guarantees effective electrical connection.

[0005] To achieve the above objectives, this utility model employs a battery box fixing structure for a mobility scooter, comprising a box body and a housing fixed to the vehicle body. The housing has an upward-opening battery compartment. A forward-extending positioning groove is provided at the lower front edge of the battery compartment. A forward-extending positioning part is provided at the lower front edge of the box body. A rearward-extending mating part is provided at the rear of the box body, offset from the upper end. A limiting part extending in the front-rear direction is provided at the rear end of the battery compartment. At least two parallel movable columns extending in the front-rear direction are provided at the lower front end of the battery compartment. Each movable column is equipped with a compression spring and has a tendency to move backward under the action of the compression spring. A mating groove corresponding to the rear end of the movable column is provided at the front end of the box body. Some or all of the movable columns are conductive movable columns, and some or all of the mating grooves contain conductive terminals. When the box body is located inside the battery compartment, the positioning part extends into the positioning groove, the mating part is located below the limiting part, and the rear end of the movable column is located in the mating groove and supports the box body.

[0006] The positioning part at the front end of the battery box and the positioning groove of the housing form the first fixing point; the mating part at the rear end of the battery box and the limiting part of the housing form the second fixing point; and the movable column at the lower front end of the housing and the mating groove of the battery box form the third support point. These three fixing points restrict the vertical movement of the battery box, and the battery compartment encloses the battery box, restricting its horizontal swaying. This improves the stability of the battery box during use and ensures effective electrical connection. The movable column, under the action of a compression spring, continuously applies a rearward elastic pressure to the box body, ensuring effective electrical connection even if the battery box experiences slight vertical movement due to gap issues.

[0007] This utility model adopts a front-insertion and rear-press assembly method. After the positioning part is inserted into the positioning groove, the mating part slides into the lower part of the limiting part, and the movable column automatically engages into the mating groove to complete the fixation. Disassembly can be performed by reversing the operation, which is very convenient.

[0008] Preferably, a positioning part is provided on each of the left and right sides of the front of the box body, and the positioning groove extends forward through the shell.

[0009] The design of the dual-sided positioning parts and the through-type positioning groove creates a symmetrical dual-point support at the front of the battery box. During assembly, both positioning parts can slide into the positioning groove simultaneously, achieving automatic centering and guiding functions, which greatly improves assembly efficiency and accuracy. Even if a fixed point fails due to strong bumps, it can effectively prevent the front of the box from shaking.

[0010] Preferably, the height of the upper end face of the positioning part gradually decreases from back to front, and the height of the upper side wall of the positioning groove gradually decreases from back to front; when the box is located inside the battery compartment, the front end of the upper end face of the positioning part is directly below the upper side wall of the positioning groove.

[0011] The positioning part and the positioning groove are designed with inclined surfaces, and both adopt a gradually increasing height structure, forming a wedge-shaped fit. When the battery box is pressed backward under the action of the compression spring, the upper end face of the positioning part and the upper wall of the positioning groove generate a downward component force. This component force works in conjunction with the spring pressure to form a double anti-jump protection.

[0012] Preferably, the housing has a first clearance groove that extends rearward and makes way for the mating part at the lower side of the limiting part.

[0013] Preferably, the lower end face of the mating part is an inclined surface extending upward from front to back.

[0014] Preferably, the upper front edge of the box body is provided with a forward-extending eave, and the upper front edge of the battery compartment is provided with a rearward-extending extension. When the box body is located inside the battery compartment, the eave is located above the extension.

[0015] Preferably, the extension gradually extends upward from front to back, and the extension direction and angle of the upper end face of the housing corresponding to the front side of the battery compartment are the same as the extension direction and angle of the extension.

[0016] Preferably, the upper rear edge of the housing has a handle extending backward, and the portion of the housing corresponding to the rear side of the battery compartment has a second clearance groove that extends backward and upward to make way for the handle.

[0017] Preferably, the housing is provided with a positioning pin extending in the left-right direction, and the side wall of the box is provided with a positioning hole corresponding to the end of the positioning pin. The positioning pin is provided to prevent accidental removal of the battery box. The positioning pin of this invention can be a locking structure and is not used for locking.

[0018] This invention has the advantages of facilitating the assembly and disassembly of the battery box, ensuring the stability of the battery box during use of the mobility scooter, and guaranteeing effective electrical connection. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the battery box after assembly according to Embodiment 1 of this utility model.

[0020] Figure 2 This is a schematic diagram of the battery box of Embodiment 1 of this utility model.

[0021] Figure 3 This is a schematic diagram of the shell structure of Embodiment 1 of this utility model.

[0022] Figure 4 This is another structural schematic diagram of the battery box of Embodiment 1 of this utility model.

[0023] Figure 5 This is a schematic diagram of the structure when the mating part and the limiting part of Embodiment 1 of this utility model are mated.

[0024] Figure 6 This is a schematic diagram of the battery box after assembly according to Embodiment 2 of this utility model.

[0025] Figure 7 This is a schematic diagram of the structure when the positioning pin of Embodiment 2 of this utility model is engaged with the positioning hole of the housing. Detailed Implementation

[0026] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

[0027] Example 1 Depend on Figure 1 and Figure 2As shown, this embodiment discloses a battery box fixing structure for a mobility scooter, including a box body 1 for accommodating batteries and a housing 2 fixedly mounted on the frame of the mobility scooter. The housing 2 is injection molded, and its upper surface is recessed downward to form an upward-opening battery compartment 20, the shape of which is adapted to the outer contour of the box body 1.

[0028] Depend on Figure 2 and Figure 3 As shown, at the lower front edge of the battery compartment 20, two positioning grooves 21 are provided at intervals along the left and right directions, extending forward and penetrating the housing, forming an open insertion port. Correspondingly, at the lower left and right sides of the front end of the box body 1, a positioning part 11 is provided, extending forward. The positions of the positioning part 11 and the positioning groove 21 correspond one-to-one, and the length of the positioning part 11 along the front-back direction is greater than the length of the positioning groove 21.

[0029] The upper surface of the positioning part 11 is designed as an inclined surface, with its height gradually decreasing from back to front, forming a sloping structure that is lower in the front and higher in the back. The upper wall of the positioning groove 21 also adopts a matching inclined design, with its height gradually decreasing from back to front. When the box 1 is correctly installed in the battery compartment 20, the positioning part 11 extends completely into the positioning groove 21, and the front end of the upper surface of the positioning part 11 is exactly located directly below the upper wall of the positioning groove 21, effectively restricting the upward displacement freedom of the front end of the box 1.

[0030] Depend on Figure 4 and Figure 5 As shown, the rear of the housing 1 has two mating parts 12 spaced apart on the left and right, and the lower end surface of the mating parts 12 is an inclined surface extending upward from front to back. The rear end of the battery compartment 20 has two forward-extending limiting parts 23. When the housing 1 is installed in place, the limiting parts 23 are located directly above the upper end of the mating parts 12, thereby limiting the upward displacement of the rear end of the housing. The housing 2 has a first clearance groove 24 extending backward and used to make way for the mating parts at the position corresponding to the lower side of the limiting parts 23.

[0031] Depend on Figure 2 As shown, four movable columns 3 are arranged side by side in the left-right direction at the lower front end of the battery compartment 20 near the bottom surface. The movable columns 3 extend horizontally in the front-back direction and can slide back and forth relative to the housing 2. In this embodiment, the movable columns on the side are conductive movable columns. The housing 2 is provided with a through-hole. The outer end of the movable column 3 is located on the front side of the housing and is fixed with a nut. The inner end of the movable column 3 is always located inside the battery compartment 20. The part of the movable column 3 inside the battery compartment 20 is covered with a compression spring 31. The diameter of the inner end of the movable column 3 is larger than the diameter of the movable column 3 at the end that is offset from the end.

[0032] The lower part of the front end face of the box body 1 is provided with four mating grooves 13 corresponding to the positions of the movable columns 3. The mating grooves on the side are provided with conductive terminals 14. When the box body 1 is installed in the battery compartment 20, the rear end of each movable column 3 is tightly pressed into the corresponding mating groove 13 under the elastic force of the compression spring 31, so that the rear end of the movable column 3 is electrically connected to the conductive terminal 14, and the rear end face of the box body 1 contacts the rear wall of the battery compartment 20.

[0033] The front upper edge of the box body 1 has a forward-protruding front eave 15, and the front upper edge of the battery compartment 20 has a rearward-extending extension 25. When the box body 1 is installed in place, the front eave 15 is exactly above the extension 25. The extension 25 gradually slopes upward from front to back, and the extension direction and angle of the upper end face of the housing 2 corresponding to the front side of the battery compartment 20 are consistent with the extension 25, which facilitates the initial support when the battery box is placed into the battery compartment 20. To facilitate the removal and placement of the battery box, the upper rear edge of the box body 1 has a rearward-extending handle 16, and the housing 2 has a rearward and upward penetrating second clearance groove 26 at the position corresponding to the rear side of the battery compartment 20.

[0034] Example 2 Depend on Figure 6 and Figure 7 As shown, the difference between this embodiment and Embodiment 1 is only that: a flexible pull pin type positioning pin 4 is provided at the rear end of the side edge of the box body 1, and a positioning pin spring 41 is fitted at the inner end of the positioning pin 4 to give the positioning pin 4 a tendency to move outward. The housing 2 is provided with a positioning hole 17 at the upper rear end of the battery compartment 20. To facilitate the assembly of the battery box, the outer end of the positioning pin 4 has an inclined surface extending upward from the inside to the outside. The box body 1 is provided with a guide groove, and a lever 42 is cut in the guide groove. The lower end of the lever 42 is fixed to the positioning pin 4, and the lever 42 covers the guide groove.

[0035] During installation, the operator holds handle 16 and tilts the box 1 above the battery compartment 20. The box 1 is then lowered so that its front end is as close as possible to the front of the battery compartment 20. At this time, the front edge of the box 1 is supported on the extension of the housing 2. Because the side wall of the box 1 contacts or has a clearance fit with the side of the battery compartment 20, the positioning part 11 at the front of the box 1 aligns with the positioning groove 21, and the mating part 12 at the rear of the box 1 aligns with the opening of the guide groove 22.

[0036] Then, the box body 1 is pushed downwards and backwards. The mating part 12 slides down along the guide surface 221 and contacts the limiting part. The positioning part 11 at the front end of the box body 1 slides into the opening of the positioning groove 21. When the mating part 12 contacts the limiting part 23, the box body 1 is pressed down further. The box body 1 will move forward a certain distance so that the mating part 12 can move forward. As the box body 1 continues to move downwards, the mating part 12 will move to the lower side of the limiting part 23. When the box body 1 is completely pressed into the battery compartment 20, under the elastic force of the compression spring 31, the rear end of the movable column 3 is tightly pressed into the mating groove 13. The entire box body 1 is elastically held and fixed. The rear end face of the box body 1 contacts the rear groove face of the battery compartment. The mating part 12 moves to the lower side of the limiting part 23. At this time, the conductive connection is completed simultaneously, and the positioning pin 4 is aligned with the positioning hole 17. The positioning pin 4 extends into the positioning hole 17 of the housing 2 under the action of the positioning pin spring. The installation process is completed.

[0037] During disassembly, the operator releases the locking of the positioning pin 4 with one hand, and then pushes the box 1 forward with the other hand. After pushing the box 1, the lever 42 can be released. By overcoming the elastic force of the compression spring 31, the mating part 12 is disengaged from the limit part 23. Then, the rear end of the box 1 is lifted upward and backward to make the positioning part 11 exit from the positioning groove 21. Continue to lift the battery box to complete the disassembly.

Claims

1. A scooter battery box fixing structure comprising a box body and a housing fixed to a scooter vehicle body, the housing being provided with an upwardly open battery compartment, characterized in that: The lower front edge of the battery compartment has a forward-extending positioning groove, the lower front edge of the box body has a forward-extending positioning part, the rear part of the box body has a rearward-extending mating part offset from the upper end, the rear end of the battery compartment has a limiting part extending in the front-rear direction, the lower front part of the battery compartment has at least two parallel movable columns extending in the front-rear direction, the movable columns are equipped with compression springs and have a tendency to move backward under the action of the compression springs, the front end of the box body has a mating groove corresponding to the rear end of the movable columns, some or all of the movable columns are conductive movable columns, and some or all of the mating grooves are provided with conductive terminals; when the box body is located in the battery compartment, the positioning part extends into the positioning groove, the mating part is located below the limiting part, and the rear end of the movable column is located in the mating groove and supports the box body.

2. The scooter battery case fixation structure according to claim 1, characterized by: The positioning part is provided on each of the left and right sides of the front of the box, and the positioning groove extends forward through the shell.

3. The battery box fixing structure for a mobility scooter according to claim 1 or 2, characterized in that: The height of the upper end face of the positioning part gradually decreases from back to front, and the height of the upper side wall of the positioning groove gradually decreases from back to front; when the box is located inside the battery compartment, the front end of the upper end face of the positioning part is directly below the upper side wall of the positioning groove.

4. The battery box fixing structure for a mobility scooter according to claim 1, characterized in that: The housing is provided with a first clearance groove that extends rearward and makes way for the mating part at the lower side of the limiting part.

5. The battery box fixing structure for a mobility scooter according to claim 1, characterized in that: The lower end face of the mating part is an inclined surface that extends upward from front to back.

6. The battery box fixing structure for a mobility scooter according to claim 1, characterized in that: The front upper edge of the box body is provided with a forward-extending eave, and the front upper edge of the battery compartment is provided with a rearward-extending extension. When the box body is located inside the battery compartment, the front eave is located above the extension.

7. The battery box fixing structure for a mobility scooter according to claim 6, characterized in that: The extension gradually extends upwards from front to back, and the extension direction and angle of the upper end face of the housing corresponding to the front side of the battery compartment are the same as the extension direction and angle of the extension.

8. The battery box fixing structure for a mobility scooter according to claim 1, characterized in that: The upper rear edge of the box has a handle that extends backward, and the portion of the housing corresponding to the rear side of the battery compartment has a second clearance groove that extends backward and upward to make way for the handle.

9. The battery box fixing structure for a mobility scooter according to claim 1, characterized in that: The housing is provided with a positioning pin extending in the left-right direction, and the side wall of the box is provided with a positioning hole corresponding to the end of the positioning pin.

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