CN108235613B - Controller for electric bicycle - Google Patents

Abstract

The invention discloses an electric bicycle controller which has the advantages of improving the assembling efficiency of the controller, reducing the product cost and improving the waterproofness and the heat dissipation. The circuit board mainly comprises a shell, a circuit board, clamp springs, end covers at two ends of the shell and an internal clamp spring. The power tube on the circuit board is arranged between the inner wall of the shell and the protrusion of the upper wall, and the clamping spring piece is arranged between the side wall of the shell and the hook-shaped protrusion and can compress the power tube. The inner wall of the hook-shaped protrusion is provided with a groove for fixing the clamp spring, and an insulating material is arranged between the power tube and the shell.

Description

Controller for electric bicycle

Technical Field

The invention relates to an electric bicycle controller, in particular to a novel structure of an electric bicycle controller, which is easy and convenient to install and has good water resistance and heat dissipation.

Background

As a control center part of an electric bicycle, a controller plays an important role only in driving a vehicle, managing energy, and displaying a light on a panel. However, the miniaturization and lightness of the electric bicycle are the main development directions of the electric bicycle in the future. Electric bicycle is miniaturized, portable while, just needs the controller when guaranteeing normal thermal diffusivity, heat release performance, constantly carries out the reduction of volume and manufacturing cost's reduction.

Chinese patent application with patent number 20081015314.6 provides a novel structure that adopts the jump ring shell fragment to fix controller power tube, guarantees that the controller has better heat dissipation and waterproof nature, has improved production efficiency simultaneously. However, due to the matching characteristic of the snap spring and the shell, the controller is high in overall height, the requirement on overall space is too high during the assembly of the overall bicycle, the controller cannot be assembled with a plurality of electric bicycles on the market, and meanwhile, the snap spring is small in contact area with the power tube, large in force application and easy to scratch the power tube.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a novel controller clamp spring and shell structure, so that the heat dissipation and the waterproofness of the controller are improved, the size of the controller is reduced, and the assembly requirement of the whole vehicle is met.

In order to achieve the purpose, the technical scheme of the invention is as follows: the controller comprises a shell, a circuit board, clamp springs and end covers arranged at two ends of the shell, wherein the upper portion of an inner cavity of the shell is provided with a downward bulge, the side wall of the inner cavity is provided with an inward bulge, a power tube is welded on the circuit board and is arranged between the side wall of the inner cavity of the shell and the bulge of the upper portion of the inner cavity, the lower portion of the power tube is supported by the bulge of the side wall of the inner cavity, and the clamp springs are arranged between the power tube and the bulge.

Compared with the prior art, the invention has the advantages and beneficial effects that:

1. the heat dissipation and waterproof capabilities are better;

2. the assembly efficiency in the production process is improved;

3. the size of the controller is reduced, and the application range is wider;

drawings

FIG. 1 is a schematic cross-sectional view of a controller;

FIG. 2 is a perspective view of a controller clamp spring;

fig. 3 is an external view of the controller housing.

Detailed Description

The specific implementation method of the invention is as follows:

as shown in fig. 1-3, 1 is a housing, 2 is a hook-shaped protrusion on the upper part of the inner wall of the housing, 3 is a power tube, 4 is a circuit board, 5 is a snap spring, 6 is a hook-shaped protrusion side wall groove, 7 is a housing side wall protrusion saddle, 8 is a housing side wall groove, 9 is an insulating material, 10 is a housing side wall, 11 is a bent piece of the snap spring, 12 is the right edge of the snap spring, and 13 is an end cover of the housing.

The utility model provides an electric bicycle controller, includes shell 1,circuit board 4,jump ring 5 andend cover 12, shell 1 is the cavity structure, has hook-shaped arch 2 in its upper arm inboard, still be equipped with protrudingsaddle 7 on thelateral wall 10 of shell 1 and be used for supportingpower tube 3, hook-shaped protruding lateral wall on be equipped withrecess 6 and play the effect of fixed jump ring, the lateral wall of shell 1 still is equipped withrecess 8 and is used for the one end offixed circuit board 4, still there is theinsulating material 9 of film shape between thelateral wall 10 of shell 1 andpower tube 3. Through the action of force between the hook-shaped protrusion 2 and theright end edge 12 of the clamp spring, thepower tube 3 can be tightly pressed on theside wall 10, and heat dissipation and stability in the working process of the power tube are facilitated.

The specific implementation process is as follows:

referring to fig. 1-3, the invention firstly puts theinsulating material 9 flatly beside theside wall 10, then puts thecircuit board 4 in the shell 1, ensures the right end edge of the circuit board to be put in thegroove 8 in the shell 1, the lower end of thepower tube 3 at the left end of the circuit board is on theboss saddle 7, then puts theclamp spring 5 between the hook-shaped protrusion 6 and thepower tube 3, thebending piece 11 of theclamp spring 5 contacts with thepower tube 3, theright end 12 of theclamp spring 5 is above thegroove 6, then the special tool only passes through the inner cavity of the hook-shaped protrusion 2, because of the extrusion effect of the special tool to theclamp spring 5, the right end of theclamp spring 5 descends to thegroove 6, at this time, theclamp spring 5 is fixed with thepower tube 3 by the effect of thegroove 6 and the hook-shaped protrusion 2, and thecircuit board 4 is fixed with the force of the power tube fixing and thegroove 8, then the end covers 13 at both sides of the controller are fixed on the shell 1 by the screw, and finally, the integral assembly of the controller is completed.

The exemplary embodiments of the present invention should be understood as an example within the scope of the claims of the present invention, and the technical solutions can be implemented by those skilled in the art without limitation.

Claims (4)

1. Electric bicycle controller includes shell, circuit board, jump ring and sets up the end cover at the shell both ends, its characterized in that: the upper part of the inner cavity of the shell is provided with a downward bulge, the side wall of the inner cavity is provided with a bulge support table, a power tube is welded on the circuit board and is arranged between the side wall of the inner cavity of the shell and the bulge on the upper part of the inner cavity, the lower part of the power tube is supported by the bulge support table on the side wall of the inner cavity, and the clamp spring is arranged between the power tube and the bulge on the upper part of the inner cavity; the upper part of the inner cavity of the shell is provided with a hook-shaped bulge, and the hook-shaped bulge hooks the lower bottom surface of the clamp spring and is connected with the clamp spring wire; the side wall of the hook-shaped protrusion is provided with a groove, the groove is of a step structure formed by a first side wall surface and a second side wall surface which are perpendicular to each other and used for placing the side end edge of a clamp spring, so that the first end of the clamp spring descends into the groove, the clamp spring is acted by the groove and the hook-shaped protrusion force, the hook portion of the hook-shaped protrusion is located between the first end and the second end of the clamp spring and close to the second end of the clamp spring, so that the second end of the clamp spring is abutted against the power tube to achieve the effect of fixing the power tube, the cross section of the clamp spring is shaped like a S-shaped structure, the hook-shaped protrusion end of the clamp spring is arc-shaped and placed into the groove, and a V-shaped notch is formed in the position close to the arc shape.

2. The electric bicycle controller according to claim 1, wherein: the second end of the clamp spring is provided with bending pieces at equal intervals, the bending pieces are contacted with the power tube, and the power tube is tightly pressed through the force of the grooves and the hook-shaped protrusions.

3. The electric bicycle controller according to claim 1, wherein: the side wall of the shell is provided with a groove for placing the side edge of the circuit board.

4. The electric bicycle controller according to claim 1, wherein: and an insulating material is arranged between the power tube and the inner wall of the shell.

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