CN214045084U

CN214045084U - Charging device

Info

Publication number: CN214045084U
Application number: CN202022578208.5U
Authority: CN
Inventors: 张瑞强; 李日照; 农贵升; 林宋荣
Original assignee: SZ DJI Technology Co Ltd
Current assignee: SZ DJI Technology Co Ltd
Priority date: 2020-11-09
Filing date: 2020-11-09
Publication date: 2021-08-24
Anticipated expiration: 2030-11-09
Also published as: WO2022095213A1

Abstract

The utility model discloses a charger, it includes box, engine, generator and power management subassembly, and the box has the air outlet, and inside box was located to engine, generator and power management subassembly. The engine comprises an output shaft, the generator comprises a rotor and an impeller arranged on the rotor, the rotor is connected with the output shaft, the power management assembly is electrically connected with the generator, and the power management assembly is opposite to the impeller so that airflow generated by rotation of the impeller blows towards the power management assembly to carry away heat generated by the power management assembly. The utility model discloses a charger, it is relative with the impeller through setting up the power management subassembly, the air current that the impeller rotation produced blows to the power management subassembly and carries away the heat that the power management subassembly produced, can play better radiating effect to the power management subassembly, improves the reliability of charger, and this embodiment has utilized the air current that produces when the impeller of generator rotates ingeniously, has simplified heat radiation structure.

Description

Charging device

Technical Field

The utility model relates to a battery charging outfit field especially relates to a charger.

Background

A charger for charging unmanned aerial vehicle's battery, especially be used for the charger that charges with unmanned aerial vehicle (agricultural machine) to agricultural, have powerful charge-discharge process during the use, the power management subassembly has a large amount of heat productions, influences the operation of charger.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a charger.

The utility model provides a charger, including the box that has the air outlet, the box is inside to be equipped with:

an engine including an output shaft;

the generator comprises a rotor and an impeller arranged on the rotor, and the rotor is connected with the output shaft;

a power management component electrically connected with the generator;

the power management component is opposite to the impeller, so that air flow generated by rotation of the impeller blows towards the power management component to carry away heat generated by the power management component.

According to the above technical scheme, the utility model provides a charger, it is relative with the impeller through setting up the power management subassembly, the air current that the impeller rotation produced blows to the power management subassembly and carries away the heat that the power management subassembly produced, can play better radiating effect to the power management subassembly, improves the reliability of charger, and this embodiment has simplified heat radiation structure to the air current that produces when having utilized the impeller rotation of generator ingeniously.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.

Fig. 1 is a schematic structural diagram of a charger according to an embodiment of the present invention;

fig. 2 is a schematic connection diagram of an engine, a rotor and an impeller according to an embodiment of the present invention;

fig. 3 is a schematic diagram of an internal structure of a charger according to an embodiment of the present invention at a first viewing angle;

FIG. 4 is an enlarged partial schematic view at A of FIG. 3;

fig. 5 is a schematic structural diagram of a charging management board according to an embodiment of the present invention;

fig. 6 is a schematic diagram of an internal structure of a charger according to an embodiment of the present invention at a second viewing angle;

fig. 7 is a partially enlarged schematic view at B in fig. 6.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in the specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

As shown in fig. 1-4, an embodiment of the present invention provides a charger, which includes a box 10, an engine 20, a generator 30, and a power management assembly 40, wherein the engine 20, the generator 30, and the power management assembly 40 are disposed inside the box 10. The engine 20 comprises an output shaft 21, the generator 30 comprises a rotor 31, the rotor 31 is connected with the output shaft 21, the power management assembly 40 is electrically connected with the generator 30, and the charger is further provided with a charging wire 50 electrically connected with the power management assembly 40.

When the charging device is used, the engine 20 is started, the engine 20 drives the rotor 31 of the generator 30 to rotate through the output shaft 21, the rotor 31 interacts with the stator of the generator 20 to generate electricity, current generated by the generator 30 is transmitted to the power management assembly 40, and a user connects the charging wire 50 with an electronic device to be charged, so that the electronic device can be charged.

While the output shaft 21 of the engine 20 and the rotor 31 of the generator 30 are directly connected by a coaxial connection as shown in fig. 2, in some other embodiments, the output shaft 21 of the engine 20 and the rotor 31 of the generator 30 may not be coaxially arranged, and the output shaft 21 and the rotor 31 may be connected by a transmission pair, for example, by a belt transmission pair or a gear transmission pair or a chain transmission pair.

Optionally, the box 10 has an air outlet 101, the generator 30 further includes an impeller 32 mounted on the rotor 31, and the power management assembly 40 is opposite to the impeller 32, so that the airflow generated by the rotation of the impeller 32 blows towards the power management assembly 40 to carry away the heat generated by the power management assembly 40. Through setting up power management subassembly 40 and impeller 32 relatively, the air current that the impeller 32 rotation produced blows to power management subassembly 40 and carries away the heat that power management subassembly 40 produced, can play better radiating effect to power management subassembly 40, improves the reliability of charger, and this embodiment has utilized the air current that the impeller 32 of generator 30 produced when rotating ingeniously, has simplified heat radiation structure.

Optionally, the generator 30 includes a housing 33, the impeller 32 may be disposed outside the housing 33 or inside the housing 33, and when the impeller 32 is disposed inside the housing 33, a hollow hole 331 is formed on the housing 33, so that an air flow generated by the rotation of the impeller 32 can be blown to the power management component 40 through the hollow hole 331.

Alternatively, the power management assembly 40 includes a charging management board 41, the charging management board 41 is opposite to the impeller 32, and the airflow generated by the rotation of the impeller 32 is blown to the charging management board 41 to carry away the heat generated by the charging management board 41. The charging wire 50 is electrically connected to the charging management board 41.

As shown in fig. 3 to 4, optionally, the power management assembly 40 further includes an AC-DC transformer module 42, the AC-DC transformer module 42 is electrically connected between the generator 30 and the charging management board 41, and the AC-DC transformer module 42 is disposed at the air outlet 101, so that the air flow diffused from the air outlet 101 carries away heat generated by the AC-DC transformer module 42. The AC-DC transformation module 42 is used for transforming the voltage of the current generated by the generator 30 before the current is input to the charge management board 41. The above embodiment can achieve a better heat dissipation effect on the AC-DC voltage transformation module 42, and avoid the influence on the use of the charger due to the overhigh temperature of the AC-DC voltage transformation module 42. In some embodiments, the impeller 32 is opposite the AC-DC transformer module 42, and the airflow generated by the impeller 32 is blown toward the AC-DC transformer module 42 to entrain the airflow generated by the AC-DC transformer module 42.

Optionally, the power management assembly 40 further includes a bracket 43 for placing the AC-DC transformer module 42, the bracket 43 has a wind tunnel 43a communicating with the wind outlet 101, and the AC-DC transformer module 42 is disposed in the wind tunnel 43 a. The air duct 43a may function to concentrate air flow, that is, may make the flow rate of the air flowing through the AC-DC transformer module 42 larger, so as to better perform a heat dissipation effect on the AC-DC transformer module 42.

Alternatively, the bracket 43 includes a bottom plate 431 and side plates 432 disposed at two opposite sides of the bottom plate 431, the projection profile of the bottom plate 431 and the side plates 432 on the box body 10 extends along the edge of the air outlet 101, and the bottom plate 431 and the side plates 432 enclose to form the air duct 43 a. By arranging the bottom plate 431 and the side plate 432 such that the projection profile on the box body 10 extends along the edge of the air outlet 101, the bracket 43 does not block the air outlet 101, so that the air flow can be smoothly discharged from the air outlet 101, and a good heat dissipation effect can be achieved.

Alternatively, the outlet 101 has a rectangular shape, the bottom plate 431 extends along the bottom edge of the outlet 101, and the two side plates 432 extend along the two side edges of the outlet 101. Of course, the outlet 101 is not limited to be rectangular, but may be circular, oval, triangular, polygonal or other irregular shapes, as long as the projection profile of the bottom plate 431 and the side plate 432 of the bracket 43 on the box body 10 extends along the edge of the outlet 101, so that the bracket 43 does not block the outlet 101.

It should be noted that, in some other embodiments, the power management assembly 40 may further include an upper cover detachably connected to the bracket 43, the upper cover and the bracket 43 enclose to form an air duct, and one end of the air duct is covered on the edge of the air outlet 101, and this arrangement may better perform a centralized effect on the air flow, and further improve the heat dissipation effect of the AC-DC voltage transformation module 42.

As shown in fig. 5, optionally, a side of the charge management plate 41 facing the impeller 32 is provided with a heat sink 411. The heat generated by the electronic devices on the charging management board 41 during operation is diffused to the heat dissipation fins 411, the airflow generated by the impeller 32 blows toward the heat dissipation fins 411 to carry away the heat on the heat dissipation fins 411, and the heat dissipation fins 411 increase the heat dissipation area, so that the heat dissipation of the charging management board 41 is faster.

Alternatively, the number of the heat radiation fins 411 is plural, and the plural heat radiation fins 411 are provided at intervals on the side of the charge management plate 41 facing the impeller 32. By providing a plurality of heat radiation fins 411 and arranging the plurality of heat radiation fins 411 at intervals, the heat radiation area can be further increased, and the heat radiation of the charge management board 41 can be accelerated. Of course, the heat sink 411 may be provided as one piece and attached to the side of the charge management plate 41 facing the impeller 32.

As shown in fig. 6-7, the charger optionally further comprises a carrier 60 mounted to the housing 10, the power management assembly 40 being mounted to the carrier 60. Through setting up to bear the frame 60 with the installation of power management subassembly 40, during the assembly, power management subassembly 40 can install earlier in bearing frame 60, will bear frame 60 and install in box 10 again, promptly, sets power management subassembly 40 into the module, can effectively reduce the installation degree of difficulty of source management subassembly 40, improves assembly efficiency. Of course, the charger may not be provided with the carrier 60, and the power management module 40 may be directly mounted on the side wall of the housing 10.

Illustratively, the carrier 60 is suspended on top of the generator 30, and the charge management board 41 and the bracket 43 are mounted to the carrier 60.

Optionally, the carrier 60 is resiliently coupled to the carton 10. The engine 20 and the generator 30 generate large vibration during operation, and the vibration transmitted to the carrier 60 through the box 10 may cause the vibration of the power management assembly 40, which may easily cause poor contact or damage to the electronic devices or the wiring on the power management assembly 40 over time, and affect the service life of the product. In this embodiment, the bearing frame 60 is elastically connected to the box 10, so that the vibration transmitted to the bearing frame 60 by the box 10 can be effectively reduced, poor contact or damage to the electronic devices or the wiring positions on the power management assembly 40 can be reduced, and the service life of the product can be prolonged.

Alternatively, the carrier 60 includes a supporting portion 61 and extension arms 62 disposed at two ends of the supporting portion 61, the power management assembly 40 is mounted on the supporting portion 61, and the extension arms 62 are elastically connected to the box 10.

Illustratively, two extending arms 62 are extended from two opposite sides of the carrying portion 61, respectively, and the two opposite inner sidewalls of the box 10 are provided with supporting portions 102, and the extending arms 62 are elastically connected to the supporting portions 102. Of course, one side of the supporting portion 61 is not limited to be provided with two extending arms 62, and it is also possible to provide one extending arm 62 or more than two extending arms 62, depending on the actual design requirement.

Optionally, the charger further includes a fastening assembly 70 and an elastic member 80, the fastening assembly 70 includes a bolt 71 and a pressing member 72, the pressing member 72 is provided with a first mounting hole, the extension arm 62 is provided with a second mounting hole, the bolt 71 passes through the first mounting hole and the second mounting hole and then is in threaded connection with the box 10, and the elastic member 80 is provided between the pressing member 72 and the extension arm 62 and/or between the extension arm 62 and the box 10. Because the bolt 71 is connected with the box 10 through the screw thread, the bolt 71 can transmit the vibration of the box 10 through the pressing piece 72, and through arranging the elastic pieces 80 between the pressing piece 72 and the extension arm 62 and between the extension arm 62 and the box 10, the vibration transmission of the box 10 and the bolt 71 to the extension arm 62 can be simultaneously reduced, and of course, the vibration transmitted to the extension arm 62 can also be reduced to a certain extent only by arranging the elastic pieces 80 between the pressing piece 72 and the extension arm 62 or only between the extension arm 62 and the box 10.

It should be noted that the elastic member 80 may be an elastic pad made of an elastic material, such as rubber or silicone, or may be a spring, which is determined according to actual design requirements.

It should be noted that the elastic connection between the carriage 60 and the container 10 is not limited to the above-mentioned manner, and for example, the extension arm 62 may be made of an elastic material, so that the vibration of the container 10 is buffered at the extension arm 62, and the vibration is reduced to be transmitted to the supporting portion 61 through the extension arm 62, that is, the vibration of the supporting portion 61 is reduced.

Optionally, the charger further includes a filter screen 90, and the filter screen 90 is installed on the box 10 and covers the air outlet 101. Through setting up filter screen 90 closing cap air outlet 101, can avoid the external debris of box 10 to get into box 10 through air outlet 101 inside and cause mechanical failure.

Optionally, the charger further includes wheels 100 mounted to the bottom of the case 10 to facilitate movement of the charger.

Optionally, the charger further includes a handle 110 mounted on the top of the housing 10 to facilitate handling of the charger.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The charger is characterized by comprising a box body with an air outlet, wherein:

an engine including an output shaft;

a power management component electrically connected with the generator;

2. The charger of claim 1, wherein the power management component comprises a charge management board that opposes the impeller.

3. The electrical charger according to claim 2, wherein a side of the charge management plate facing the impeller is provided with a heat sink.

4. The charger of claim 2, wherein the power management assembly further comprises an AC-DC transformer module electrically connected between the generator and the charging management board, the AC-DC transformer module being disposed at the air outlet such that the airflow diffused from the air outlet carries away heat generated by the AC-DC transformer module.

5. The charger according to claim 4, wherein the power management assembly further comprises a bracket for placing the AC-DC transformer module, the bracket having an air duct communicating with the air outlet, the AC-DC transformer module being disposed in the air duct.

6. The charger according to claim 5, wherein the bracket comprises a bottom plate and side plates disposed on opposite sides of the bottom plate, the projection outlines of the bottom plate and the side plates on the box body extend along the edge of the air outlet, and the bottom plate and the side plates enclose to form the air duct.

7. The charger according to any one of claims 1 to 6, further comprising a carrier mounted to the housing, the power management assembly being mounted to the carrier.

8. The charger of claim 7, wherein the carrier is resiliently coupled to the housing.

9. The charger according to claim 8, wherein the supporting frame comprises a supporting portion and extension arms disposed at two ends of the supporting portion, the power management assembly is mounted on the supporting portion, and the extension arms are elastically connected to the box.

10. The charger of claim 9, further comprising:

the fastening assembly comprises a bolt and a pressing piece, the pressing piece is provided with a first mounting hole, the extension arm is provided with a second mounting hole, and the bolt penetrates through the first mounting hole and the second mounting hole and then is in threaded connection with the box body;

and the elastic piece is arranged between the pressing piece and the extension arm and/or between the extension arm and the box body.

11. The charger according to claim 1, further comprising a filter screen mounted to the case and covering the air outlet.