Radiating structure of middle motor
Technical Field
The invention relates to a mid-motor, in particular to a heat dissipation structure of a mid-motor.
Background
In recent years, with the continuous development of two-wheeled electric vehicles, two-wheeled electric vehicles carrying a mid-motor are increasingly popular with people, and with the improvement of the power of the existing motor, the heat dissipation performance of the mid-motor on the whole vehicle also begins to face more and more challenges.
Disclosure of Invention
The invention provides a novel radiating structure of a mid-set motor, aiming at the defect that the radiating performance of the mid-set motor of a two-wheeled electric vehicle in the prior art can not meet the current requirement.
In order to solve the technical problems, the invention is realized by the following technical scheme:
a heat dissipation structure of a mid-set motor comprises a mid-set motor, a motor mounting bracket, a rear bottom fork, a front frame, a middle support and a guide plate, wherein the rear part of the front frame is connected with the front part of the rear bottom fork, the motor mounting bracket is arranged at the front part of the rear bottom fork, the mid-set motor is arranged on the motor mounting bracket, the middle support is rotatably connected with the front part of the rear bottom fork, one end of the guide plate is arranged at the head part of the middle support, the front part of the rear bottom fork forms a heat dissipation space respectively communicated with the mid-set motor and the guide plate, an opening position and a closing position are formed between the guide plate and the rear bottom fork, in the opening position, the middle support is lifted, an air inlet is formed between the guide plate and the front frame, the air inlet is communicated with the heat dissipation space, and in the closing position, the middle support is vertical and the guide plate closes the heat dissipation space.
Wherein the motor installing support plays the effect of connecting between two parties and bearing and put the motor in, well support can play the effect of supporting two-wheeled electric motor car when two-wheeled electric motor car stops, and the guide plate can play the water conservancy diversion effect, enters into the heat dissipation space with the wind water conservancy diversion that two-wheeled electric motor car riding in-process produced to take away the heat that puts the motor and produce fast, promote the heat dispersion of putting the motor in. In addition, the guide plate is mutually supported with well support for the guide plate can form open position, closed position with the back chain stay, and when then the support was lifted in the middle of, can drive the guide plate automatically and open and form the air intake, thereby take away the heat that the middle motor produced fast at the in-process of riding. When the middle support is erected, the guide plate can be folded automatically to close the heat dissipation space, so that pollutants such as dust raised on the ground in the long-time parking process are prevented from entering the heat dissipation space through the air inlet in a large amount, and the pollutants are attached to the middle motor to influence the heat dissipation effect of the middle motor.
Preferably, in the above heat dissipation structure for a mid-motor, in the open position, the height H1 of the lower end of the front frame is greater than the height H2 of the air inlet, and in the closed position, the height H1 of the lower end of the front frame is less than or equal to the height H3 of the lower end of the air deflector.
The height H1, the height H2 and the height H3 are set to be in the above relation, so that the air inlet volume can be better increased under the opening position, the heat dissipation effect is improved, and dust raised on the ground can be better prevented from entering under the closing position.
Preferably, in the above heat dissipation structure of a mid-motor, a height difference between the height H1 and the height H2 is 1cm to 10 cm.
The height difference between the two is in the range, so that the air inlet volume and the heat dissipation efficiency under the opening position can be ensured, and the wind resistance is not excessively increased.
Preferably, in the heat dissipation structure of the centrally-mounted motor, the height H2 of the air inlet is 10cm to 20 cm.
Height H2 is in above-mentioned within range, on the one hand is unlikely to let the air intake too close to ground and increase the entering volume of dust, on the other hand can not let the two-wheeled electric motor car increase the height of vehicle for the setting needs of air intake again, and the universality is stronger.
Preferably, the above heat dissipation structure for a mid-motor includes a connection portion and a flow guiding portion, the connection portion is connected to the head portion of the mid-support, the connection portion is plate-shaped, and the flow guiding portion is arc-shaped.
The connecting portion of board type can be connected with the head of well support better, guarantees the reliability in the long-time use of guide plate. And the curved guide part can better guide the wind into the heat dissipation space without generating larger wind resistance.
Preferably, the heat dissipation structure of the mid-motor further includes a fastening member, two ends of the connecting portion form bending portions and are connected to the head portion of the mid-support through the bending portions, a fixing portion is further formed at a tail end of the bending portion, and the fastening member penetrates through the connecting portion and is connected to the fixing portion.
The fixed part on fastener and the kink is mutually supported, can be better with the guide plate connect in the head of well support, convenient to detach maintenance again simultaneously.
Preferably, in the heat dissipation structure of the mid-motor, the flow guide plate is further provided with flow guide ribs in an array, and the flow guide plate is separated into the flow guide channels through the flow guide ribs.
The diversion channel separated by the diversion ribs can better divide and guide the entering wind, and the influence on the heat dissipation effect caused by the disorder of the entering wind is avoided.
Preferably, in the heat dissipation structure of the mid-motor, the flow guide rib is further provided with a fastening seat, and the head of the fastening piece is located in the fastening seat.
The fastening seat can further enhance the reliability of connection between the fastening piece and the guide plate, and the fastening seat is arranged on the guide ribs, so that the influence of the fastening seat on the wind entering amount can be further reduced.
Preferably, the heat dissipation structure of the mid-motor is characterized in that a left wind gathering block and a right wind gathering block are further arranged on the lower portion of the rear bottom fork, the left wind gathering block and the right wind gathering block are respectively located on two sides of the guide plate, and the middle support is rotatably connected to the left wind gathering block and the right wind gathering block.
The left wind gathering block, the right wind gathering block and the guide plate are enclosed, the flow direction of wind can be better limited under the opening position, the heat dissipation effect is improved, the heat dissipation space can be better enclosed and blocked under the closing position, dust raised on the ground is further prevented from entering, and the service life of the motor is prolonged.
Preferably, the heat dissipation structure of the mid-motor further includes a heat sink, an upper portion of the heat sink is connected to a lower portion of the mid-motor, and a lower portion of the heat sink is located in the heat dissipation space.
The heat dissipation effect of the middle motor can be further improved by the arrangement of the heat dissipater.
Drawings
FIG. 1 is a schematic view of the present invention in an open position;
FIG. 2 is a schematic view of the structure at A in FIG. 1;
FIG. 3 is a schematic perspective view of the present invention in an open position;
FIG. 4 is an exploded view of the present invention;
FIG. 5 is a schematic structural view of a middle support and baffle of the present invention;
FIG. 6 is a schematic view of the present invention in a closed position;
FIG. 7 is a schematic view of the structure at B in FIG. 6;
fig. 8 is a schematic perspective view of the present invention in a closed position.
Detailed Description
The invention will be described in further detail below with reference to the accompanying figures 1-8 and the detailed description, but they are not intended to limit the invention:
example 1
As shown in fig. 1 to 8, a heat dissipation structure of a mid-motor includes a mid-motor 6, a motor mounting bracket 5, a rear bottom fork 4, a front frame 1, a rear portion of the front frame 1 is connected to a front portion of the rear bottom fork 4, the motor mounting bracket 5 is disposed at a front portion of the rear bottom fork 4, the mid-motor 6 is disposed on the motor mounting bracket 5, and further includes a mid-support 3 and a baffle 2, the mid-support 3 is rotatably connected to a front portion of the rear bottom fork 4, one end of the baffle 2 is disposed at a head portion of the mid-support 3, a heat dissipation space 9 respectively communicated with the mid-motor 6 and the baffle 2 is formed at a front portion of the rear bottom fork 4, an open position and a closed position are formed between the baffle 2 and the rear bottom fork 4, an air inlet 7 is formed between the baffle 2 and the front frame 1 in the open position, the mid-support 3 is above the baffle 2, the air inlet 7 is communicated with the heat dissipation space 9, and in the closed position, the middle support 3 is erected and the guide plate 2 closes the heat dissipation space 9.
When two-wheeled electric motor car converts the state of riding into from the parking state, the user can support 3 upwards to lift in with, then support 3 in the in-process of lifting, guide plate 2 of being connected with the head of well support 3 also can rotate thereupon, then support 3 in the well and lift the back of targetting in place, will form air intake 7 between guide plate 2 and the preceding frame 1, then the wind that produces in the two-wheeled electric motor car process of riding can constantly pass through air intake 7 and enter into heat dissipation space 9 along guide plate 2, thereby constantly take away the heat that middle motor 6 distributed out, the heat dispersion of middle motor 6 has been promoted greatly.
And after riding passerby's use up the two-wheeled electric motor car, can erect the two-wheeled electric motor car through supporting 3 in with, then along with the rising of well support 3, guide plate 2 of being connected with the head of well support 3 also can rotate along with it, then support 3 in well and stand the back completely, guide plate 2 also can seal air intake 7, thereby close heat dissipation space 9, then at the long-time in-process of berthing of two-wheeled electric motor car, debris such as subaerial dust will be unable to enter into heat dissipation space 9 through guide plate 2, the amount of attachment of ground dust to middle motor 6 has been reduced, the life of middle motor 6 has been put in the promotion.
Preferably, in the open position, the height H1 of the lower end of the front frame 1 is greater than the height H2 of the air inlet 7, and in the closed position, the height H1 of the lower end of the front frame 1 is less than or equal to the height H3 of the lower end of the air deflector 2.
Preferably, the height difference between the height H1 and the height H2 is 1 cm.
Preferably, the height H2 of the air inlet 7 is 10 cm.
Preferably, the baffle 2 includes a connecting portion 21 and a flow guiding portion 22 connected to each other, the connecting portion 21 is connected to the head of the middle support 3, the connecting portion 21 is plate-shaped, and the flow guiding portion 22 is arc-shaped.
Preferably, the fixing device further comprises a fastening member 10, bent portions 211 are formed at two ends of the connecting portion 21 and connected with the head portion of the middle support 3 through the bent portions 211, a fixing portion 212 is further formed at the end of the bent portion 211, and the fastening member 10 penetrates through the connecting portion 21 and is connected with the fixing portion 212.
Preferably, the guide plate 2 is further provided with guide ribs 23 in an array manner, and the guide plate 2 is separated into a guide channel 24 through the guide ribs 23.
Preferably, the flow guiding rib 23 is further provided with a fastening seat 25, and the head of the fastening element 10 is located in the fastening seat 25.
Preferably, the lower portion of the rear bottom fork 4 is further provided with a left wind gathering block 41 and a right wind gathering block 42, the left wind gathering block 41 and the right wind gathering block 42 are respectively located on two sides of the guide plate 2, and the middle support 3 is rotatably connected to the left wind gathering block 41 and the right wind gathering block 42.
Preferably, the heat dissipation device further comprises a heat sink 8, wherein the upper part of the heat sink 8 is connected with the lower part of the middle-placed motor 6, and the lower part of the heat sink 8 is located in the heat dissipation space 9.
More specifically, in the two-wheeled electric vehicle riding process, because the wind that the bicycle produced can enter into guide plate 2 department through air intake 7 behind frame 1 before, and because of the encirclement effect of guide plate 2, left side wind-holding block 41, right side wind-holding block 42, make the wind that gets into guide plate 2 can not disperse in a large number, but can further concentrate, thereby form relative high pressure, force the wind that gets into from air intake 7 department further to accelerate, and be cut apart into the parallel and further tributary of multi-beam through a strip water conservancy diversion muscle 23 on the guide plate 2, then separate the water conservancy diversion passageway 24 through water conservancy diversion muscle 23 and get into heat dissipation space 9, thereby take away the heat that motor 6 distributes out fast, put the heat dispersion of motor 6 in the promotion.
And when the two-wheeled electric motor car berthhed, air intake 7 was sealed, and because of the effect of enclosing of guide plate 2, left wind piece 41, right wind piece 42 for subaerial dust can't enter into heat dissipation space 9 from the below, reduced the adhesion of ground dust to middle motor 6, promoted the life of middle motor 6.
Example 2
The height difference between the height H1 and the height H2 is 5 cm.
The height H2 of the air inlet 7 is 15 cm.
The other embodiments are the same as example 1.
Example 3
The height difference between the height H1 and the height H2 is 10 cm.
The height H2 of the air inlet 7 is 20 cm.
The other embodiments are the same as example 1.
In summary, the above-mentioned embodiments are only preferred embodiments of the present invention, and all equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the present invention.