CN216943401U

CN216943401U - Battery case mounting structure and electric bicycle

Info

Publication number: CN216943401U
Application number: CN202220144377.4U
Authority: CN
Inventors: 刘启
Original assignee: Shenzhen Xidesheng Bicycle Co Ltd
Current assignee: Shenzhen Xidesheng Bicycle Co Ltd
Priority date: 2022-01-19
Filing date: 2022-01-19
Publication date: 2022-07-12
Anticipated expiration: 2032-01-19

Abstract

The utility model relates to a battery box mounting structure and an electric moped. The battery case mounting structure includes the low tube, mount pad and battery case, the mount pad has two, mount pad fixed mounting is in the low tube and the installation is fixed between two mount pads to the battery case card income, the top surface of low tube is equipped with the perforation, every mount pad corresponds at least one and perforates, it has the fixed block to run through in the perforation, fixed block and perforation welded fastening, the fixed block is equipped with the screw blind hole towards one side of low tube inside, the mount pad passes through the screw blind hole of screw income fixed block with the fixed connection fixed block, the screw is established within the low tube. According to the utility model, the fixing block is penetrated and welded from the lower pipe, and the mounting seat is connected to the fixing block through the internal screw, so that the screw of the mounting seat is prevented from being exposed, the existing gap is reduced, external pollutants are prevented from entering the lower pipe, and the protection of the battery box is improved; and the built-in bolt can not be dismantled easily, reduces the stolen risk of battery case.

Description

Battery box mounting structure and electric bicycle

Technical Field

The utility model relates to an electric moped, in particular to a battery box mounting structure and the electric moped.

Background

The electric power-assisted vehicle is a vehicle which is based on a common small bicycle and is additionally provided with a motor, a storage battery and other components as auxiliary power. The general battery mounting structure of the electric moped is divided into 2 types: one is that the battery box is externally hung above a lower pipe of the frame, an upper mounting seat and a lower mounting seat are welded above the lower pipe, and the battery box is clamped on the mounting seats through a bayonet to achieve the purpose of mounting and fixing; the second is that the battery box is hidden in the lower tube of the frame, and the installation mode is that the battery box is arranged in the lower surface opening of the lower tube and then the lower tube is covered by the box cover. The built-in battery box mounting structure is generally provided with two mounting seats, and the common mounting seat fixing mode is that screws are directly adopted to directly penetrate through the wall body of the lower pipe from the outer side of the lower pipe and then are screwed into screw holes of the mounting seats to form fixing. In the structure, a small gap cannot be avoided between the directly exposed screw and the lower pipe wall body, so that external pollutants can easily pass through the gap, and improvement is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provides a novel battery box mounting structure and an electric moped, so that a fastening screw is prevented from being exposed, and the existing gap is reduced.

In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides a battery case mounting structure, it includes the low tube, mount pad and battery case, the mount pad has two, mount pad fixed mounting is among the low tube and the installation is fixed between two mount pads to the battery case card income, the top surface of low tube is equipped with the perforation, every mount pad corresponds at least one and perforates, it has the fixed block to run through in the perforation, fixed block and perforation welded fastening, the fixed block is equipped with the screw thread blind hole towards the inside one side of low tube, the mount pad passes through the screw thread blind hole of screw income fixed block with the fixed connection fixed block, the screw is established within the low tube.

Furthermore, the through holes are square holes with different lengths and widths, and the cross section of the part of the fixing block penetrating through the through holes is consistent with the shape and the size of the through holes.

Furthermore, avoidance positions are arranged at four corners of the through hole.

Furthermore, a shallow groove is formed in the position, surrounding the through hole, of the top face of the lower pipe, convex edges extending outwards are arranged on the upper portions of two opposite side walls of the fixing block, and the convex edges are placed in the shallow groove.

Further, the lower extreme opening and a stores pylon of low tube are connected, and the stores pylon is used for fixed driving motor, and the stores pylon is equipped with the port that is used for with low tube lower extreme opening butt joint, stores pylon port and low tube lower extreme opening welded fastening.

Furthermore, a convex ring extending towards the lower end opening of the lower pipe is arranged at the port of the hanging rack, and the convex ring is inserted into the lower end opening of the lower pipe to fix the relative position of the hanging rack and the lower pipe.

Furthermore, the bottom surface of the lower pipe is provided with an opening for installing and disassembling the battery box, and a box cover is fixed on the bottom surface of the battery box and used for covering the whole opening.

Further, the peripheral edge of the box cover is an outwards extending rubber coating edge which is used for covering the gap between the opening and the battery box.

Furthermore, a T-shaped groove is formed in the bottom surface of the battery box, an I-shaped nut is clamped in the T-shaped groove, and the box cover penetrates through the screw and is screwed into the I-shaped nut; the one side that the lid faced the battery case is equipped with the sand grip, and when lid fixed connection battery case, the battery case bottom surface is hugged closely so that lid surface and I-shaped nut leave the interval to the sand grip top surface.

The utility model also discloses an electric moped, which comprises the battery box mounting structure.

Compared with the prior art, the utility model has the beneficial effects that: the fixing block is penetrated and welded from the lower pipe, and the mounting seat is connected to the fixing block through the internal screw, so that the screw of the mounting seat is prevented from being exposed, the existing gap is reduced, external pollutants are prevented from entering the lower pipe, and the protection of the battery box is improved; and the built-in bolt can not be dismantled easily, reduces the stolen risk of battery case.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more apparent, the following detailed description will be given of preferred embodiments.

Drawings

Fig. 1 is an exploded view of a battery pack mounting structure according to the present invention.

Fig. 2 is an assembly view of the battery case mounting structure of the present invention (with the lower tube cut away).

Fig. 3 is an assembled sectional view of a battery case and a case cover according to the present invention.

Fig. 4 is an exploded view of the frame of the electric bicycle of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and the following detailed description.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by one skilled in the art.

First embodiment

The first embodiment is a battery case mounting structure, the specific structure of which is shown in fig. 1 to 3.

As shown in fig. 1, the battery cartridge mounting structure includes a lower tube 10, a mounting seat 20, and a battery cartridge 30. The lower tube 10 is a cylindrical member, and an opening 11 for inserting and removing the battery case 30 is opened at the bottom surface of the lower tube 10. The lower end opening 12 of the lower pipe 10 is used to connect with a hanger 40, and the hanger 40 is used to fixedly connect with a driving motor 42 through a plurality of screws 41. The hanger 40 is provided with a port 43 for abutting against the lower end opening 12 of the lower pipe 10, and the port 43 of the hanger 40 is welded and fixed with the lower end opening 12 of the lower pipe 10. The port 43 of the hanger 40 is provided with a convex ring 44 extending towards the lower end opening 12 of the lower pipe 10, and the shape of the convex ring 44 is matched with the shape of the lower end opening 12 of the lower pipe 10. During assembly, the protruding ring 44 may be inserted into the lower opening 12 of the lower tube 10 to fix the relative position of the hanger 40 and the lower tube 10, and then the welding is performed along the butt seam between the port 43 of the hanger 40 and the lower opening 12 of the lower tube 10, and finally the welding seam between the lower tube 10 and the hanger 40 may be smoothly transited by grinding and polishing. The structure of butt joint fixing and re-welding can reduce the use of an external fixing die during welding, save working procedures and reduce manufacturing cost.

Referring to fig. 1 and 2, the mounting base 20 has two upper and lower portions, wherein the upper mounting base 20 is provided with a lock for locking the battery compartment 30 from theft. Two mounting seats 20 are fixedly mounted in the lower tube 10 and the battery case 30 is snap-fitted and fixed between the two mounting seats 20. Specifically, as shown in fig. 1, two through holes 14 are formed in the top surface 13 of the lower pipe 10, one through hole 14 corresponds to each mounting seat 20, a fixing block 15 penetrates through each through hole 14, and the fixing block 15 is welded and fixed to the through hole 14. As shown in fig. 1, the fixing block 15 is provided with two blind threaded holes 151 on a side facing the inside of the lower tube 10, and each mounting seat 20 is screwed into the blind threaded hole 151 of the fixing block 15 by two screws 21 to fixedly connect the fixing block 15. The two screws 21 of each mounting seat 20 are arranged inside the down tube 10, so that the screws 21 do not penetrate through the wall of the down tube 10, thus reducing the existing gaps.

As shown in fig. 1, the through hole 14 is a square hole with different lengths and widths, and the cross-sectional shape and size of the fixing block 15 penetrating through the through hole 14 is identical to the shape and size of the through hole 14. And avoidance positions 141 are arranged at four corners of the through hole 14, so that the interference between the fixing block 15 and the inner corners of the through hole 14 can be avoided, and the avoidance positions 141 can also reduce the stress concentration caused by the through hole 14. In addition, as shown in fig. 1, a shallow groove 142 is formed at a position surrounding the through hole 14 on the top surface of the lower tube 10, and the upper portions of two opposite sidewalls of the fixing block 15 are respectively provided with a convex edge 152 extending outward, and the convex edges 152 are inserted into the shallow groove 142 so that the fixing block 15 is fixed at the through hole 14 during welding without additionally fixing the fixing block 15, thereby saving the process and reducing the manufacturing cost. The welding can be performed along the gap between the side wall of the shallow groove 142 and the fixing block 15 without performing a welding operation in the lower tube 10.

In other embodiments, each mounting seat may correspond to a plurality of through holes, and each through hole has a blind threaded hole, so that the distance between the through holes may be increased, and the distance between the screws penetrating through the mounting seats may be increased, so as to improve the fixing stability of the mounting seats.

An opening 11 opened in the bottom surface of the lower tube 10 is used for attaching and detaching the battery case 30. As shown in fig. 1 and 2, a case cover 31 is fixed to a bottom surface of the battery case 30, and the case cover 31 covers the entire opening 11. As shown in fig. 1, the peripheral edge of the case cover 31 is an outwardly extending edge 311, and the edge 311 is used to cover the gap between the opening 11 and the battery case 30, so as to reduce the entry of external contaminants through the gap. As shown in fig. 3, two T-shaped grooves 32 are formed in the bottom surface of the battery case 30, i-nuts 33 are inserted into the T-shaped grooves 32, and the cover 31 is inserted through screws 313 and the screws 313 are screwed into the i-nuts 33 so that the cover 31 is tightly attached to the battery case 30. In addition, as shown in fig. 3, two convex strips 312 are arranged on one surface of the box cover 31 facing the battery box 30, and when the box cover 31 is fixedly connected to the battery box 30, the top surfaces of the convex strips 312 are tightly attached to the bottom surface of the battery box 30, so that a gap is left between the surface of the box cover 31 and the i-shaped nut 33, and the i-shaped nut 33 is prevented from being pressed by the surface of the box cover 31.

This embodiment is through penetrating and welded fastening piece 15 from lower tube 10, and the inside screw 21 of rethread is connected mount pad 20 on fixed block 15, and the screw 21 of having avoided mount pad 20 exposes, therefore reduces the clearance that exists, reduces external pollutant and gets into the lower tube, improves the protection to battery case 30, and is more firm, difficult not hard up to battery case 30's fixed ratio moreover.

Second embodiment

The second embodiment is an electric bicycle, and the structure of the frame is shown in fig. 4. The battery pack mounting structure of the first embodiment is used for a vehicle body frame of an electric power-assisted vehicle. As shown in fig. 4, the upper end of the lower pipe 10 is connected to a joint pipe 51, the hanger 40 is connected to a middle pipe 52 extending up and down, and the middle pipe 52 is connected to the joint pipe 51 through an upper pipe 53. The lower duct 10 is fixedly mounted with the battery case 30 and the mounting base 20 by the battery case mounting structure of the first embodiment.

The technical contents of the present invention are further illustrated by the examples only for the convenience of the reader, but the embodiments of the present invention are not limited thereto, and any technical extension or re-creation based on the present invention is protected by the present invention. The protection scope of the utility model is subject to the claims.

Claims

1. The utility model provides a battery case mounting structure, its includes low tube, mount pad and battery case, the mount pad has two, mount pad fixed mounting is in the low tube and the battery case card goes into the installation to be fixed between two mount pads, its characterized in that, the top surface of low tube is equipped with the perforation, every the mount pad corresponds at least one and perforates, it has the fixed block to run through in the perforation, fixed block and perforation welded fastening, the fixed block is equipped with the screw blind hole towards the inside one side of low tube, the mount pad passes through the screw blind hole of screw income fixed block with fixed connection the fixed block, the screw is established within the low tube.

2. The battery pack mounting structure according to claim 1, wherein the through-holes are square holes having different lengths and widths, and the fixing pieces are formed to have a cross-sectional shape and size corresponding to those of the through-holes at portions extending through the through-holes.

3. The battery pack mounting structure according to claim 2, wherein evasion positions are provided at four corners of the through-hole.

4. The battery pack mounting structure according to claim 2, wherein the lower tube has a shallow groove formed in a top surface thereof at a position surrounding the through-hole, and the fixing block has outwardly extending protrusions formed on upper portions of opposite side walls thereof, the protrusions being received in the shallow groove.

5. The battery pack mounting structure according to claim 1, wherein the lower tube has a lower end opening connected to a hanger for fixing the driving motor, the hanger is provided with a port for abutting against the lower end opening of the lower tube, and the port of the hanger is welded to the lower end opening of the lower tube.

6. The battery pack mounting structure according to claim 5, wherein the end port of the hanger is provided with a collar extending toward the lower end opening of the lower tube, the collar being inserted into the lower end opening of the lower tube to fix the relative position of the hanger to the lower tube.

7. The battery case mounting structure of claim 1, wherein the lower tube is provided at a bottom surface thereof with an opening for inserting and removing the battery case, and a case cover for covering the entire opening is fixed to the bottom surface of the battery case.

8. The battery case mounting structure according to claim 7, wherein the peripheral edge of the case cover is an outwardly extending over-molded edge for covering a gap between the opening and the battery case.

9. The battery pack mounting structure according to claim 7, wherein the bottom surface of the battery pack is provided with a T-shaped groove in which an i-shaped nut is snapped, and the cover is inserted through and screwed into the i-shaped nut; the lid is equipped with the sand grip towards the one side of battery case, when lid fixed connection battery case, the battery case bottom surface is hugged closely so that lid surface and I-shaped nut leave the interval to the sand grip top surface.

10. An electric power-assisted vehicle, characterized in that it comprises the battery pack mounting structure of any one of claims 1 to 9.