CN219679087U - Electronic speed regulator and unmanned aerial vehicle - Google Patents

Abstract

The utility model discloses an electronic speed regulator and an unmanned aerial vehicle, wherein the electronic speed regulator comprises a shell, a power board, a control board and a heat dissipation assembly: the inside of the shell is provided with a first installation cavity and a second installation cavity which are communicated with each other; the power board is arranged in the first mounting cavity; the control board is arranged in the second mounting cavity, and is electrically connected with the power board and is arranged opposite to the power board; the heat dissipation assembly comprises a first heat dissipation part and a second heat dissipation part, wherein the first heat dissipation part is arranged on one side, deviating from the control board, of the power board, the second heat dissipation part is arranged on one side, facing the control board, of the power board, and a plurality of heat dissipation fins are arranged on the opposite sides of the first heat dissipation part and the second heat dissipation part. The technical scheme of the utility model aims to improve the heat dissipation efficiency of the electronic speed regulator and ensure the operation stability of the high-power electronic speed regulator.

Description

Electronic speed regulator and unmanned aerial vehicle

Technical Field

The utility model relates to the technical field of aircrafts, in particular to an electronic speed regulator and an unmanned aerial vehicle.

Background

The electronic speed regulator consists of a control part and a power part, wherein the power part carries working current, the higher the working voltage is, the higher the passing current is, the faster the temperature of the internal element rises, so the heat dissipation is particularly important for the electronic speed regulator, in particular to the high-power electronic speed regulator.

In the prior art, an aluminum alloy radiator is often arranged on one side of a power part, and a fan is arranged on the radiator to radiate heat, however, for a high-power electronic speed regulator, the radiating effect of the radiating structure is obviously insufficient, and finally, the high-power electronic speed regulator is subjected to overheat protection or overheat burnout, so that the electronic speed regulator is easy to damage.

Disclosure of Invention

The utility model mainly aims to provide an electronic speed regulator, which aims to improve the heat dissipation efficiency of the electronic speed regulator and ensure the operation stability of the high-power electronic speed regulator.

In order to achieve the above object, the present utility model provides an electronic governor, including:

a housing, the interior of which is provided with a first installation cavity and a second installation cavity which are communicated with each other;

the power board is arranged in the first mounting cavity;

the control board is arranged in the second mounting cavity, is electrically connected with the power board and is oppositely arranged; and

the heat dissipation assembly comprises a first heat dissipation part and a second heat dissipation part, wherein the first heat dissipation part is arranged on one side, deviating from the control panel, of the power board, the second heat dissipation part is arranged on one side, facing the control panel, of the power board, and a plurality of heat dissipation fins are arranged on the opposite sides of the first heat dissipation part and the second heat dissipation part.

Optionally, the power board comprises a PCB board and a power device, and the power device is disposed on a side of the PCB board facing the second heat sink;

the power device is coated with heat-conducting silica gel; and/or a heat conduction silica gel pad is arranged between the PCB and the first heat dissipation piece.

Optionally, a plurality of rows of elements are distributed on one side of the PCB towards the first heat dissipation element, and the first heat dissipation element is provided with a plurality of avoidance grooves corresponding to the plurality of rows of elements.

Optionally, the shell is made of aluminum alloy; and/or the shell is provided with a heat dissipation opening corresponding to the first heat dissipation piece and the second heat dissipation piece.

Optionally, the electronic speed regulator further comprises a capacitor, and the electronic speed regulator further comprises a double-sided adhesive fireproof pad;

one side of the first heat dissipation piece, which is far away from the power board, is divided into a first area and a second area, the heat dissipation fins are arranged in the first area, and the capacitor is arranged in the second area; and/or, one side of the second heat dissipation piece facing the control panel is divided into a third area and a fourth area, the heat dissipation fins are arranged in the third area, and the control panel is adhered to the fourth area through the fireproof pad.

Optionally, the electric capacity include the electric capacity body with connect in the connecting plate of electric capacity body, the connecting plate towards the power board is protruding to be equipped with the connection convex part, the power board corresponds the connection convex part is equipped with the mounting groove, the connection convex part peg graft in the mounting groove.

Optionally, the control board is provided with a connection male head corresponding to the power board, the power board is provided with a connection female head corresponding to the connection male head, and the connection male head is spliced with the connection female head.

Optionally, the second heat dissipation member is provided with an avoidance port corresponding to the connection female head, and the avoidance port is used for avoiding the connection female head.

Optionally, corresponding to the first mounting cavity, a first limiting rib is convexly arranged on the opposite side of the inner part of the shell, and the power board is clamped between the opposite first limiting ribs; and/or, corresponding to the second mounting cavity, second limiting ribs are convexly arranged on opposite sides of the inner part of the shell, and the control plate is clamped between the opposite second limiting ribs.

The utility model also provides an unmanned aerial vehicle which comprises the electronic speed regulator.

According to the technical scheme, the inner part of the shell is set to be the first mounting cavity and the second mounting cavity, the power board and the control board are arranged corresponding to the first mounting cavity and the second mounting cavity respectively, and the first radiating piece and the second radiating piece are arranged on the two opposite sides of the power board respectively, so that in the process of using the electronic speed regulator, heat generated by the power board is conducted to the external environment on the two opposite sides of the power board through the first radiating piece and the second radiating piece respectively, the radiating efficiency is improved, meanwhile, radiating fins are arranged on one sides of the first radiating piece and the second radiating piece, which are away from the power board, respectively, and can increase the contact area between the first radiating piece and the second radiating piece and the external environment, and quickly transfer the heat to the external environment, so that the power board can be ensured to operate in a proper temperature range, and the operation stability of the high-power electronic speed regulator is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an electronic governor according to an embodiment of the present utility model;

FIG. 2 is a side view of the electronic governor of FIG. 1 without a housing;

FIG. 3 is an exploded view of the housing of the electronic governor of the present utility model;

FIG. 4 is an exploded view of another view of the housing of the electronic governor of the present utility model;

FIG. 5 is an exploded view of one embodiment of an electronic governor of the present utility model;

fig. 6 is an exploded view of an alternative view of an embodiment of an electronic governor of the present utility model.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The utility model provides an electronic speed regulator.

In an embodiment of the present utility model, as shown in fig. 1 to 6, the electronic governor includes:

a housing 100 having a first installation cavity 110 and a second installation cavity 120 which are communicated with each other;

the power board 200 is arranged in the first mounting cavity 110;

the control board 300 is arranged in the second mounting cavity 120, and the control board 300 is electrically connected with the power board 200 and is arranged opposite to the power board; and

the heat dissipation assembly comprises a first heat dissipation element 400 and a second heat dissipation element 500, wherein the first heat dissipation element 400 is arranged on one side of the power board 200, which is away from the control board 300, the second heat dissipation element 500 is arranged on one side of the power board 200, which is towards the control board 300, and a plurality of heat dissipation fins 600 are arranged on opposite sides of the first heat dissipation element 400 and the second heat dissipation element 500.

According to the technical scheme, the inner part of the shell 100 is set to be the first installation cavity 110 and the second installation cavity 120, then the power board 200 and the control board 300 are arranged corresponding to the first installation cavity 110 and the second installation cavity 120 respectively, and the first heat dissipation piece 400 and the second heat dissipation piece 500 are arranged on two opposite sides of the power board 200 respectively, so that in the process of using the electronic speed regulator, the heat generated by the power board 200 is conducted to the external environment through the first heat dissipation piece 400 and the second heat dissipation piece 500 on two opposite sides of the power board 200 respectively, the heat dissipation efficiency is improved, meanwhile, the heat dissipation fins 600 are arranged on one sides, facing away from the power board 200, of the first heat dissipation piece 400 and the second heat dissipation piece 500 respectively, and can increase the contact area between the first heat dissipation piece 400 and the external environment and quickly transfer the heat to the external environment, so that the power board 200 is ensured to operate in a proper temperature range, and the operation stability of the high-power electronic speed regulator is ensured.

The control board 300 is disposed opposite to the power board 200, and the power board 200 is sandwiched between the first heat dissipation element 400 and the second heat dissipation element 500, that is, the first heat dissipation element 400 and the second heat dissipation element 500 are disposed corresponding to the plane where the power board 200 is located, so that the contact area between the power board 200 and the first heat dissipation element 400 and the second heat dissipation element 500 is ensured to be sufficiently thermally conductive. In addition, the heat dissipation fins 600 may be laid on the surface of the first heat dissipation element 400 or the second heat dissipation element 500, or may be laid on a portion of the surface, and the plurality of heat dissipation fins 600 are erected and distributed on the surface of the corresponding first heat dissipation element 400 or the second heat dissipation element 500 at intervals in an array, so as to increase the heat dissipation area of the first heat dissipation element 400 and the second heat dissipation element 500, thereby improving the heat dissipation efficiency.

Specifically, in the present embodiment, referring to fig. 1 to 6, the housing 100 is provided with heat dissipation openings 130 corresponding to the first heat dissipation element 400 and the second heat dissipation element 500. Thus, the first heat dissipation element 400 and the second heat dissipation element 500 can directly contact with the external environment, so as to achieve the purpose of more efficient heat dissipation. Without loss of generality, in the present embodiment, the heat dissipation port 130 is disposed corresponding to the heat dissipation fin 600, so as to further improve the heat dissipation efficiency of the heat dissipation fin 600. Of course, in other embodiments, the housing 100 may not be provided with the heat dissipation port 130 on the premise of satisfying the heat dissipation efficiency, or the heat dissipation port 130 may be provided corresponding to the power board 200.

Further, in the present embodiment, please continue to refer to fig. 1 to 6, the material of the housing 100 is an aluminum alloy material. It should be noted that, the aluminum alloy material has good thermal conductivity, so the housing 100 can also transfer the heat emitted by the first heat dissipation element 400 and the second heat dissipation element 500 to the external environment, thereby improving the heat dissipation efficiency. Of course, in other embodiments, the material of the housing 100 may be a metal or alloy with good thermal conductivity, such as a copper alloy or a magnesium alloy.

In an embodiment, referring to fig. 5 and 6, the power board 200 includes a PCB board and a power device 220, the power device 220 is disposed on a side of the PCB board facing the second heat dissipation element 500, and the power device 220 is coated with a thermal conductive silica gel (not shown). The heat-conducting silica gel has good insulativity, cold-heat exchange resistance, aging resistance, good heat conductivity and other performances; the heat-conducting silica gel can be coated on the outer surface of the power device 220 after being heated and melted, or the heat-conducting silica gel sheet can be laid on the power device 220, and then the heat-conducting silica gel sheet is heated, so that the heat-conducting silica gel can be laid on the outer surface of the power device 220. In this way, in the operation process of the electronic speed regulator, the heat generated by the power device 220 can be quickly transferred to the second heat dissipation element 500 through the heat conduction silica gel included on the power device, and then transferred to the external environment through the second heat dissipation element 500, so that the effect of quick heat dissipation is achieved.

Further, in the present embodiment, please continue to refer to fig. 5 and 6, a heat-conducting silica gel pad 700 is disposed between the pcb board and the first heat sink 400. Therefore, the heat generated on the PCB can be quickly transferred to the first heat dissipation part 400 through the heat-conducting silica gel pad 700, and then dissipated to the external environment through the first heat dissipation part 400, so that the effect of quick heat dissipation is achieved. Of course, in other embodiments, the thermal conductive silicone pad 700 may be included only on the power device 220, or only between the PCB board and the first heat sink 400.

Further, in the present embodiment, referring to fig. 1 to 6, a side of the pcb board facing the first heat dissipation member 400 is provided with a plurality of rows of elements 211, and the first heat dissipation member 400 is provided with a plurality of avoiding grooves 410 corresponding to the plurality of rows of elements 211. It should be noted that, the hardness of the heat-conducting silica gel pad 700 is lower, so that the avoiding grooves 410 can avoid the elements 211 arranged in rows, so that the first heat dissipation element 400 can be tightly abutted on the heat-conducting silica gel or the first heat dissipation element 400 can be tightly abutted on the power board 200, thereby improving the heat exchange efficiency between the two and achieving a better heat dissipation effect. Of course, in other embodiments, the first heat sink 400 may not be provided with the relief groove 410 while avoiding the first heat sink 400 from pressing the damaged element 211.

In an embodiment, referring to fig. 5 and 6, the electronic speed governor further includes a capacitor 900, wherein a side of the first heat sink 400 facing away from the power board 200 is divided into a first area 420 and a second area 430, the heat sink fin 600 is disposed in the first area 420, and the capacitor 900 is disposed in the second area 430. It should be noted that, in the distribution direction of the first heat dissipation element 400 and the second heat dissipation element 500, the height of the capacitor 900 is equal to the height of the heat dissipation fin 600, so that the heat dissipation fin 600 is disposed in the first area 420, and the capacitor 900 is mounted in the second area 430, so that one sides of the heat dissipation fin 600 and the capacitor 900, which are away from the power board 200, are located on the same plane, so as to ensure the integrity of the outer surface of the housing 100, and avoid the housing 100 from being convexly provided with a containing protrusion for placing the capacitor 900, thereby improving the risk of damaging the electronic speed regulator. Of course, in other embodiments, the heat sink fin 600 may be laid over the first region 420 and the second region 430, the capacitor 900 may be placed on a side of the heat sink fin 600 facing away from the power board 200, and the housing 100 may be provided with a receiving protrusion for placing the capacitor 900.

Further, in the present embodiment, please continue to refer to fig. 5 and 6, the electronic speed governor further includes a double-sided adhesive fireproof pad 800, the side of the second heat dissipation element 500 facing the control board 300 is divided into a third area 520 and a fourth area 530, the heat dissipation fins 600 are disposed in the third area 520, and the control board 300 is adhered to the fourth area 530 through the fireproof pad 800. It should be noted that, in the distribution direction of the first heat dissipation element 400 and the second heat dissipation element 500, the heights of the fireproof pad 800 and the control board 300 are equal to the heights of the heat dissipation fins 600, so that the heat dissipation fins 600 are disposed in the third area 520, and the fireproof pad 800 is mounted in the fourth area 530 to adhere the control board 300 to the fourth area 530, so that one sides of the heat dissipation fins 600 and the control board 300, which are away from the power board 200, are located on the same plane, the integrity of the outer surface of the housing 100 is ensured, the risk of damaging the electronic speed regulator is avoided, and the aesthetic degree of the electronic speed regulator is also improved. In addition, the double-sided adhesive fire protection pad 800 may stabilize the control panel 300 in the fourth region 530, avoiding loosening and damage to the control panel 300 during use. Of course, in other embodiments, the third region 520 and the fourth region 530 may be covered by the heat dissipating fin 600, and the control board 300 may be placed on a side of the heat dissipating fin 600 facing away from the power board 200, where the housing 100 is provided with a receiving protrusion for placing the control board 300.

Further, in the present embodiment, referring to fig. 1 to 6, the capacitor 900 includes a capacitor body 910 and a connection plate 920 connected to the capacitor body 910, the connection plate 920 is provided with a connection protrusion 921 protruding toward the power board 200, the power board 200 is provided with a mounting groove 230 corresponding to the connection protrusion 921, and the connection protrusion 921 is inserted into the mounting groove 230. Without loss of generality, in this embodiment, the connection plate 920 may be conductive, and the connection protrusion 921 is soldered to the mounting groove 230. In this way, the connection plate 920 can ensure that the capacitor 900 is electrically connected with the power board 200, and meanwhile, the connection protrusion 921 and the mounting groove 230 cooperate to ensure that the capacitor 900 is stabilized in the second area 430, so as to avoid the capacitor 900 from being loose and damaged during use. Of course, in other embodiments, a stopper may be disposed in the housing 100 corresponding to the capacitor 900, where the stopper limits the capacitor 900 to the second area 430.

In an embodiment, referring to fig. 1 to 6, a connection male head 310 is disposed corresponding to a power board 200 of the control board 300, a connection female head 240 is disposed corresponding to a connection male head 310 of the power board 200, and the connection male head 310 and the connection female head 240 are plugged. It will be appreciated that the connection female 240 and the connection male 310 may be electrically conductive, and that the connection male 310 and the connection female 240 may be detachably connected. In this way, when maintenance or replacement of the power board 200 or the control board 300 is required, the male connector 310 and the female connector 240 are disconnected, thereby facilitating maintenance of the electronic governor. Of course, in other embodiments, the control board 300 and the power board 200 may be electrically connected by wires, or alternatively, the connection male connector 310 is provided on the power board 200 and the connection female connector 240 is provided on the control board 300.

Further, in the present embodiment, referring to fig. 5 and 6, the second heat dissipation element 500 is provided with an avoidance port 510 corresponding to the connection female head 240, and the avoidance port 510 is used for avoiding the connection female head 240. In this way, the avoidance port 510 prevents the interference of the second heat dissipation member 500 to the connection female connector 240, and when the electronic speed regulator is installed, the control board 300 and the power board 200 can be electrically connected through the cooperation of the connection female connector 240 and the connection male connector 310, so that the electrical connection installation of the control board 300 and the power board 200 is facilitated. Of course, in other embodiments, the area of the second heat sink 500 is smaller than the area of the power board 200, and the second heat sink 500 does not interfere with the connection between the connection female 240 and the connection male 310.

In an embodiment, referring to fig. 1 to fig. 6, corresponding to the first mounting cavity 110, first limiting ribs 140 are convexly disposed on opposite sides of the interior of the housing 100, and the power board 200 is sandwiched between the opposite first limiting ribs 140. It can be appreciated that, corresponding to the distribution direction perpendicular to the first heat dissipation element 400 and the second heat dissipation element 500, the first limiting ribs 140 on two opposite sidewalls of the housing 100 clamp the power board 200, so as to avoid loosening and damaging the power board 200 during use. Of course, in other embodiments, the interior of the housing 100 is provided with a detent in which the side of the power board 200 is inserted.

Further, in the present embodiment, referring to fig. 3 and 4, corresponding to the second mounting cavity 120, second limiting ribs 150 are convexly disposed on opposite sides of the interior of the housing 100, and the control board 300 is sandwiched between the opposite second limiting ribs 150. It can be appreciated that the second spacing ribs 150 on two opposite sidewalls of the housing 100 clamp the control board 300 corresponding to the distribution direction perpendicular to the first heat sink 400 and the second heat sink 500, so as to avoid loosening and damaging the control board 300 during use. Of course, in other embodiments, the interior of the housing 100 is provided with a detent in which the side of the control board 300 is inserted.

The utility model also provides an unmanned aerial vehicle, which comprises an electronic speed regulator, and the specific structure of the electronic speed regulator refers to the embodiment, and because the unmanned aerial vehicle adopts all the technical schemes of all the embodiments, the unmanned aerial vehicle at least has all the beneficial effects brought by the technical schemes of the embodiments, and the description is omitted herein.

The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (10)

1. An electronic governor, comprising:

a housing, the interior of which is provided with a first installation cavity and a second installation cavity which are communicated with each other;

the power board is arranged in the first mounting cavity;

the control board is arranged in the second mounting cavity, is electrically connected with the power board and is oppositely arranged; and

the heat dissipation assembly comprises a first heat dissipation part and a second heat dissipation part, wherein the first heat dissipation part is arranged on one side, deviating from the control panel, of the power board, the second heat dissipation part is arranged on one side, facing the control panel, of the power board, and a plurality of heat dissipation fins are arranged on the opposite sides of the first heat dissipation part and the second heat dissipation part.

2. The electronic governor of claim 1, wherein the power board comprises a PCB and a power device, the power device being disposed on a side of the PCB that faces the second heat sink;

the power device is coated with heat-conducting silica gel; and/or a heat conduction silica gel pad is arranged between the PCB and the first heat dissipation piece.

3. The electronic speed regulator of claim 2, wherein a side of the PCB facing the first heat sink is provided with a plurality of rows of elements, and the first heat sink is provided with a plurality of relief grooves corresponding to the plurality of rows of elements.

4. The electronic governor of claim 1, wherein the housing is an aluminum alloy material; and/or the shell is provided with a heat dissipation opening corresponding to the first heat dissipation piece and the second heat dissipation piece.

5. The electronic governor of claim 1, further comprising a capacitor, the electronic governor further comprising a double-sided, adhesive fire protection pad;

one side of the first heat dissipation piece, which is far away from the power board, is divided into a first area and a second area, the heat dissipation fins are arranged in the first area, and the capacitor is arranged in the second area; and/or, one side of the second heat dissipation piece facing the control panel is divided into a third area and a fourth area, the heat dissipation fins are arranged in the third area, and the control panel is adhered to the fourth area through the fireproof pad.

6. The electronic governor of claim 5, wherein the capacitor comprises a capacitor body and a connecting plate connected to the capacitor body, the connecting plate is convexly provided with a connecting protrusion toward the power board, the power board is provided with a mounting groove corresponding to the connecting protrusion, and the connecting protrusion is inserted into the mounting groove.

7. The electronic speed regulator of claim 1, wherein the control board is provided with a male connection head corresponding to the power board, the power board is provided with a female connection head corresponding to the male connection head, and the male connection head and the female connection head are connected in an inserted manner.

8. The electronic governor of claim 7, wherein the second heat dissipation element is provided with an avoidance port corresponding to the connection female, the avoidance port being configured to avoid the connection female.

9. The electronic governor of any of claims 1 to 8, wherein first limit ribs are provided on opposite sides of the interior of the housing corresponding to the first mounting cavity, the power board being sandwiched between the opposite first limit ribs;

and/or, corresponding to the second mounting cavity, second limiting ribs are convexly arranged on opposite sides of the inner part of the shell, and the control plate is clamped between the opposite second limiting ribs.

10. A drone comprising an electronic governor according to any of claims 1 to 9.