CN217389308U

CN217389308U - Electric bicycle controller box

Info

Publication number: CN217389308U
Application number: CN202220771836.1U
Authority: CN
Inventors: 邓世刚
Original assignee: Nanjing Lishui Electronics Research Insititue Co ltd
Current assignee: Nanjing Lishui Electronics Research Insititue Co ltd
Priority date: 2022-04-02
Filing date: 2022-04-02
Publication date: 2022-09-06
Anticipated expiration: 2032-04-02

Abstract

The application relates to an electric bicycle controller box, which belongs to the technical field of electrical equipment. The controller box aims at solving the problems of large volume and poor heat dissipation effect of the controller box. The controller box comprises a controller box body and a PCB; the controller box body is provided with an upper shell and a lower shell; a PCB mounting cavity is formed between the upper shell and the lower shell, the PCB is fixedly mounted on the lower shell, and one side of the PCB is provided with a plurality of MOS tubes; all the MOS tubes form an MOS tube area; a plurality of heat-conducting columns are arranged on the bottom plate of the lower shell at positions corresponding to the MOS tubes; one ends of all the heat-conducting columns extend towards the PCB, and a spacing gap is formed between the heat-conducting columns and the PCB; heat conducting pieces are arranged in the interval gaps; the heat that the MOS pipe produced is transmitted for the heat conduction post through the heat-conducting piece, and then transmits for the casing down and dispels the heat. This application is through setting up the heat conduction post corresponding with MOS pipe quantity, dispels the heat on transmitting the controller box body with the heat of MOS pipe through the heat-conducting piece, can realize carrying out single heat dissipation to the MOS pipe, and this application controller box is small, and the radiating effect is good.

Description

Electric bicycle controller box

Technical Field

The application relates to an electric bicycle controller box, which belongs to the technical field of electrical equipment.

Background

With the development of traffic, electric bicycles have become the first choice vehicles for more and more people to go out. The electric bicycle is rapidly developed due to the advantages of lightness, small occupied area, labor saving and the like. The controller of the electric bicycle is a circuit control part of the whole bicycle body, and a function line of the controller is connected with a whole bicycle execution line to realize the circuit control of the whole bicycle.

When the existing controller is installed in a vehicle pipe of an electric vehicle, the heat dissipation effect is poor, and the controller is easy to damage when being used for a long time. Especially, the PCB of the controller is provided with a plurality of MOS tubes, because the MOS tubes can generate a large amount of heat during working, if the heat is not dissipated in time, the MOS tubes can be directly burnt out due to overheating. Therefore, the commonly used heat dissipation mode is that a heat dissipation component is added on the outer side of each MOS tube, or a cooling fan is arranged on one side of the PCB, but the overall size of the controller is too large, and the controller is not suitable for the requirement of the miniaturization of the size of the electric vehicle. The PCB board still carries out heat conduction and heat dissipation through the heat conduction pad, nevertheless because the operating condition of every MOS pipe is all different, dispels the heat through the heat conduction pad, can not accomplish the heat of every MOS pipe and can both in time spill, also can lead to the early damage of MOS pipe.

Disclosure of Invention

Aiming at the problems and the defects in the prior art, the electric bicycle controller box comprises a controller box body and a PCB (printed Circuit Board); the controller box body is provided with an upper shell and a lower shell; a PCB mounting cavity is formed between the upper shell and the lower shell, the PCB is fixedly mounted on the lower shell, and one side of the PCB is provided with a plurality of MOS tubes; all the MOS tubes form an MOS tube area; a plurality of heat conducting columns are arranged on the bottom plate of the lower shell at positions corresponding to the MOS tubes; one ends of all the heat-conducting columns extend towards the PCB, and a spacing gap is formed between the heat-conducting columns and the PCB; heat conducting pieces are arranged in the interval gaps; the heat that produces during MOS pipe work transmits for the heat conduction post through the heat conduction piece, and then transmits for the lower casing through the heat conduction post and dispels the heat. This application is through setting up the heat conduction post corresponding with MOS pipe quantity, dispels the heat on transmitting the controller box body with the heat of MOS pipe through the heat-conducting member, because heat conduction post and MOS pipe one-to-one can accomplish to carry out single heat dissipation to every MOS pipe, and this application controller box is small, and the radiating effect is good.

In order to achieve the above purpose, the present application provides the following technical solutions: an electric bicycle controller box comprises a controller box body and a PCB; the controller box body is provided with an upper shell and a lower shell; a PCB mounting cavity is formed between the upper shell and the lower shell, the PCB is fixedly mounted on the lower shell, and one side of the PCB is provided with a plurality of MOS tubes; all the MOS tubes form an MOS tube area; a plurality of heat conducting columns are arranged on the bottom plate of the lower shell at positions corresponding to the MOS tubes; one ends of all the heat-conducting columns extend towards the PCB, and a spacing gap is formed between the heat-conducting columns and the PCB; heat-conducting members are arranged in the spacing gaps; the heat that produces during MOS pipe work transmits for the heat conduction post through the heat conduction piece, and then transmits for the lower casing through the heat conduction post and dispels the heat.

Specifically, the heat conducting member is a heat conducting silica gel sheet, and the size area of the heat conducting member at least covers the size area of the MOS tube area. Through setting up heat conduction silica gel piece as heat conduction piece, utilize the good heat conductivility of heat conduction film, can realize in time transmitting the MOS pipe heat for the heat conduction post, and then transmit and carry out the casing heat dissipation for lower casing. Meanwhile, the heat-conducting silica gel sheet can fill the gap between the MOS tube and the heat-conducting column, so that the functions of heat conduction, insulation, shock absorption and the like are achieved, and the design requirements of miniaturization and ultrathin of the controller box body are met. The size area of the heat-conducting silica gel sheet at least covers the size area of the MOS tube area, so that the heat-conducting requirement on the MOS tube can be mainly met, the size of the heat-conducting silica gel sheet can be selectively increased according to the design requirement of a PCB (printed circuit board), the heat-conducting and heat-dissipating effect can be performed on the electrical elements in the non-MOS tube area on the PCB, and the application range of the controller box is widened.

Specifically, the lower shell is a box-type aluminum shell with an upper opening and a hollow interior; the upper shell is of an upper cover structure with a hollow lower opening, the lower opening of the upper shell is mounted at the upper opening of the lower shell, and a cavity is formed between the upper shell and the lower shell to form a mounting cavity of the PCB. Set up the casing down into box-shaped aluminium system casing, realize that the heat of MOS pipe carries out the casing heat dissipation to casing down through the heat conduction post, and go up the casing and can carry out adaptation formula production according to the production demand, select heat conduction material production or non-heat conduction material production, can carry out product manufacturing cost's control, improve product market competitiveness.

Specifically, a bottom plate of the lower shell is provided with a plurality of bosses; the boss is provided with an internal thread; the positions of the PCB corresponding to the bosses are respectively provided with a plurality of mounting through holes; the PCB board is arranged on the lower shell, and the installation cavity is divided into an upper cavity and a lower cavity; when the PCB is installed, the bosses correspond to the installation through holes one by one and are in threaded connection with the internal threads on the bosses through the fixing bolts. The bottom plate of the lower shell is provided with the boss and serves as an installation platform of the PCB, and the installation cavity is divided into an upper cavity and a lower cavity by taking the PCB as a boundary line; the MOS tube penetrates through the lower end of the PCB mounting through hole and extends to the lower cavity, so that the lower cavity can be used as a mounting cavity of the heat-conducting column, and the electrical components on the PCB are mounted in the upper cavity or the lower cavity, so that the size of the controller box can be further reduced.

Specifically, a bottom plate of the lower shell is provided with a positioning pin; a positioning hole is formed in the position, corresponding to the positioning pin, of the PCB; the PCB board is installed on the lower shell, and the positioning pins correspond to the positioning holes one by one. Through setting up locating pin and locating hole, can realize that the PCB board is quick, accurate installation is convenient for produce the installation on casing down.

Specifically, a plurality of MOS tube mounting through holes are formed in the PCB; the MOS tube is arranged in the mounting through hole, and at least part of the tube body of the MOS tube penetrates through the mounting through hole and extends out of the lower cavity to form the MOS tube heat conducting end.

Specifically, all the heat-conducting columns are heat-conducting aluminum columns, one end of each heat-conducting column extends towards the PCB, and a gap is formed between each heat-conducting column and the heat-conducting end of the MOS tube. The heat conducting columns are arranged to be aluminum heat conducting columns with good heat conducting performance, so that the heat conducting performance can be improved, and the heat radiating effect of the controller box is improved.

Specifically, the number of the heat-conducting aluminum columns and the number of the MOS tubes are twelve; when the PCB is arranged on the lower shell, the heat conducting ends of the MOS tubes correspond to the heat conducting aluminum columns one by one. The arrangement can realize that each MOS tube can radiate heat through the corresponding heat-conducting aluminum column, thereby improving the heat radiation effect.

Specifically, a box body mounting threaded through hole is further formed in a bottom plate of the lower shell; the controller box body is connected with the box body installation thread through hole through a mounting screw in a threaded manner and is installed on a bicycle pipe of the electric bicycle. Through set up box body installation screw through-hole on casing down, both realized controller box and electric bicycle car pipe fixed mounting, when accessible mounting screw and mounting thread realized threaded connection again, the realization was transmitted the car pipe of electric bicycle with the heat through the mounting screw, further improved the radiating effect.

Specifically, one side surface of the controller box body is provided with a lead mounting hole; a lead rubber pad is arranged in the lead mounting hole; the wire rubber pad is provided with a plurality of wire holes; the electric circuit of the electric element on the PCB board passes through the wire hole and is led out outwards in the form of a wire or a wire column. The wire guide holes are formed in the wire rubber pad, so that wires or wire columns of the PCB electric element are led out outwards through the wire guide holes, the electric connection with an external connector is realized, meanwhile, the waterproof and dustproof performance of the controller box is improved through the wire rubber pad, and the service life of the controller box is prolonged.

Compared with the prior art, the beneficial effect of this application lies in:

1. this application carries out the heat conduction through set up the heat conduction film between PCB board and heat conduction post, and then carries out the casing heat dissipation, can realize reducing the volume of PCB board, and then realizes the miniaturized production demand of controller box.

2. This application is through MOS pipe and the heat conduction aluminium post with the same quantity to MOS pipe and heat conduction aluminium post one-to-one can realize that every single MOS pipe derives the heat alone and then realizes the heat dissipation purpose, and the radiating effect is good.

3. This application sets up installation screw thread through-hole on the lower casing as the radiating piece, can realize carrying out fixed mounting with the electric bicycle car pipe and simultaneously can realize transmitting the heat to the car pipe through the mounting screw, further improves the radiating effect.

Drawings

Fig. 1 is a schematic structural diagram of a controller box according to the embodiment;

fig. 2 is an exploded view of the controller box according to the embodiment;

fig. 3 is a structural bottom view of the controller box of the embodiment.

In the figure: 1. a PCB board; 2. an upper housing; 3. a lower housing; 4. a MOS tube; 5. a MOS tube region; 6. a heat-conducting silica gel sheet; 7. a boss; 8. mounting a through hole; 9. positioning pins; 10. positioning holes; 11. a thermally conductive aluminum column; 12. the box body is provided with a threaded through hole; 13. a wire rubber pad; 14. a wire guide hole.

Detailed Description

The present application will be further explained with reference to the drawings in the embodiments of the present application.

Referring to fig. 1-3, the present embodiment discloses an electric bicycle controller box, which includes a controller box body and a PCB board 1; the controller box body is provided with an upper shell 2 and a lower shell 3; an installation cavity of the PCB board 1 is formed between the upper shell and the lower shell, the PCB board 1 is fixedly installed on the lower shell 3, and one side of the PCB board is provided with a plurality of MOS tubes 4; all the MOS tubes 4 form an MOS tube area 5; a plurality of heat conducting columns are arranged on the bottom plate of the lower shell 3 at positions corresponding to the MOS tubes 4; one end of each heat-conducting column extends towards the PCB (printed circuit board) 1, and a gap is formed between each heat-conducting column and the PCB 1; heat conducting pieces are arranged in the interval gaps; the heat that MOS pipe 4 during operation produced transmits for the heat conduction post through the heat conduction piece, and then transmits for lower casing 3 through the heat conduction post and dispels the heat. The basic working requirements of the chip test socket are realized.

Further, the heat conducting member is a heat conducting silica gel sheet 6, and the size area of the heat conducting silica gel sheet at least covers the size area of the MOS tube area 5. The construction of the heat-conducting member is realized.

Further, the lower shell 3 is a box-type aluminum shell with an opening at the upper part and a hollow interior; the upper casing 2 is a hollow upper cover structure with a lower opening, and the lower opening is arranged at the upper opening of the lower casing 3, and a cavity is formed between the upper casing and the lower casing to form an installation cavity of the PCB board 1. The construction of the lower housing is realized.

Further, a bottom plate of the lower shell 3 is provided with a plurality of bosses 7; the boss is provided with an internal thread; the positions of the PCB 1 corresponding to the bosses are respectively provided with a plurality of mounting through holes 8; the PCB board 1 is arranged on the lower shell 3, and the installation cavity is divided into an upper cavity and a lower cavity; when the PCB is installed, the bosses 7 correspond to the installation through holes 8 one by one and are in threaded connection with internal threads on the bosses 7 through fixing bolts.

Further, a bottom plate of the lower shell 3 is provided with a positioning pin 9; a positioning hole 10 is arranged on the PCB 1 corresponding to the positioning pin 9; the PCB board 1 is arranged on the lower shell 3, and the positioning pins 9 correspond to the positioning holes 10 one by one.

Furthermore, a plurality of MOS tube mounting through holes are arranged on the PCB 1; MOS pipe 4 is installed in the installation through-hole, and at least some bodys of MOS pipe pass the installation through-hole and stretch out towards cavity down, form MOS pipe heat conduction end.

Furthermore, all the heat conducting columns are heat conducting aluminum columns 11, and one end of each heat conducting column extends towards the direction of the PCB 1 and forms a gap with the heat conducting end of the MOS tube.

Furthermore, the number of the heat-conducting aluminum columns 11 and the number of the MOS tubes 4 are twelve; when the PCB board 1 is installed on the lower shell 3, the MOS tube heat conducting ends correspond to the heat conducting aluminum columns 11 one by one.

Further, a box body mounting threaded through hole 12 is also formed in the bottom plate of the lower shell 3; the controller box body is connected with the box body installation thread through hole 12 in a threaded mode through an installation screw and installed on a bicycle pipe of the electric bicycle.

Furthermore, one side surface of the controller box body is provided with a wire mounting hole; a lead rubber pad 13 is arranged in the lead mounting hole; the wire rubber pad 13 is provided with a plurality of wire holes 14; the electrical circuits of the electrical components on the PCB 1 are led out through the wire holes 14 in the form of wires or wire columns.

The working principle is as follows: the application provides an electric bicycle controller box, which comprises an upper shell 2, a lower shell 3 and a PCB (printed circuit board) 1; the PCB 1 is provided with a MOS tube area 5 consisting of twelve MOS tubes 4 and a non-MOS tube area provided with other electrical elements. One end of the MOS tube 4 extends out of the bottom surface of the PCB. Be equipped with 12 heat conduction aluminum columns 11 on the bottom plate of lower casing 3, and heat conduction aluminum column 11 and MOS pipe 4 one-to-one, connect through heat conduction silica gel piece 6 between the two. The utility model provides an electric bicycle controller box installs on electric bicycle's car pipe, the heat that MOS pipe 4 during operation produced is transmitted to heat conduction aluminium post 11 through heat conduction silica gel piece 6 on, and dispel the heat to casing 3 down through the transmission of heat conduction aluminium post 11, casing 3's heat also transmits for the car pipe through the mounting screw who installs in box body installation screw through-hole 12 and dispels the heat down simultaneously, this application electric bicycle controller box compact structure, small, the radiating effect is good.

The embodiments of the present application have been described in detail with reference to the examples, but the present application is not limited to the embodiments, and those skilled in the art can make various equivalent changes and substitutions without departing from the principle of the present application after learning the content of the present application, and these equivalent changes and substitutions should be considered as belonging to the protection scope of the present application.

Claims

1. An electric bicycle controller box comprises a controller box body and a PCB; the method is characterized in that: the controller box body is provided with an upper shell and a lower shell; a PCB mounting cavity is formed between the upper shell and the lower shell, the PCB is fixedly mounted on the lower shell, and one side of the PCB is provided with a plurality of MOS tubes; all the MOS tubes form an MOS tube area; a plurality of heat-conducting columns are arranged on the bottom plate of the lower shell and correspond to the MOS tubes; one end of each heat conduction column extends towards the PCB, and a spacing gap is formed between each heat conduction column and the PCB; heat conducting pieces are arranged in the spacing gaps; the heat generated during the operation of the MOS tube is transferred to the heat-conducting column through the heat-conducting piece, and then is transferred to the lower shell through the heat-conducting column for heat dissipation.

2. The electric bicycle controller box of claim 1, wherein: the heat conducting piece is a heat conducting silica gel piece, and the size area of the heat conducting piece at least covers the size area of the MOS tube area.

3. The electric bicycle controller box of claim 1, wherein: the lower shell is a box-type aluminum shell with an upper opening and a hollow interior; the upper shell is of an upper cover structure with a hollow lower opening, the lower opening of the upper shell is arranged at the upper opening of the lower shell, and a cavity is formed between the upper shell and the lower shell to form an installation cavity of the PCB.

4. The electric bicycle controller box of claim 3, wherein: a bottom plate of the lower shell is provided with a plurality of bosses; the boss is provided with an internal thread; a plurality of mounting through holes are respectively formed in the positions, corresponding to the bosses, of the PCB; the PCB is arranged on the lower shell, and the installation cavity is divided into an upper cavity and a lower cavity; when the PCB is installed, the bosses correspond to the installation through holes one by one and are in threaded connection with the internal threads on the bosses through fixing bolts.

5. The electric bicycle controller box of claim 4, wherein: a positioning pin is arranged on the bottom plate of the lower shell; a positioning hole is formed in the position, corresponding to the positioning pin, of the PCB; the PCB board is arranged on the lower shell, and the positioning pins correspond to the positioning holes one to one.

6. The electric bicycle controller box of claim 4, wherein: the PCB is provided with a plurality of MOS tube mounting through holes; the MOS tube is arranged in the mounting through hole, and at least part of the tube body of the MOS tube penetrates through the mounting through hole and extends out towards the lower cavity to form the MOS tube heat conducting end.

7. The electric bicycle controller box of claim 6, wherein: all the heat-conducting columns are heat-conducting aluminum columns, one end of each heat-conducting column extends towards the PCB, and a gap is formed between each heat-conducting column and the heat-conducting end of the MOS tube.

8. The electric bicycle controller box of claim 7, wherein: the number of the heat-conducting aluminum columns and the number of the MOS tubes are twelve; when the PCB is arranged on the lower shell, the MOS tube heat conducting ends correspond to the heat conducting aluminum columns one by one.

9. The electric bicycle controller box of claim 6, wherein: a box body mounting threaded through hole is also formed in the bottom plate of the lower shell; the controller box body is in threaded connection with the box body installation thread through hole through an installation screw and is installed on a bicycle pipe of the electric bicycle.

10. The electric bicycle controller box of claim 1, wherein: one side surface of the controller box body is provided with a lead mounting hole; a wire rubber pad is arranged in the wire mounting hole; the wire rubber pad is provided with a plurality of wire holes; and the electric circuit of the electric element on the PCB board passes through the wire hole in the form of a wire or a wire column and is led out outwards.