CN116317186A - Wireless power transmission device with heat dissipation assembly and unmanned aerial vehicle - Google Patents

Wireless power transmission device with heat dissipation assembly and unmanned aerial vehicle Download PDF

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Publication number
CN116317186A
CN116317186A CN202310353375.5A CN202310353375A CN116317186A CN 116317186 A CN116317186 A CN 116317186A CN 202310353375 A CN202310353375 A CN 202310353375A CN 116317186 A CN116317186 A CN 116317186A
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CN
China
Prior art keywords
heat dissipation
component
wireless power
coil
electronic component
Prior art date
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Pending
Application number
CN202310353375.5A
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Chinese (zh)
Inventor
左志平
李小飞
彭波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Huachuang Intelligent Technology Research Institute Co ltd
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Chongqing Huachuang Intelligent Technology Research Institute Co ltd
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Publication date
Application filed by Chongqing Huachuang Intelligent Technology Research Institute Co ltd filed Critical Chongqing Huachuang Intelligent Technology Research Institute Co ltd
Priority to CN202310353375.5A priority Critical patent/CN116317186A/en
Publication of CN116317186A publication Critical patent/CN116317186A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/005—Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/12—Inductive energy transfer
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
    • H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components

Abstract

The invention belongs to the field of wireless power transmission devices, and provides a wireless power transmission device with a heat dissipation assembly and an unmanned aerial vehicle. The heat dissipation device comprises an electronic component, a coil component, a heat dissipation fan and a heat dissipation component, wherein the heat dissipation component is arranged between the electronic component and the coil component, the electronic component and the coil component are connected with each other through the heat dissipation component, a heat dissipation air channel is arranged in the heat dissipation component, the coil component and the electronic component are separated by the heat dissipation air channel, the heat dissipation fan is arranged corresponding to the heat dissipation component, and cooling air flows of the heat dissipation fan flow through the heat dissipation air channel and respectively dissipates heat of the electric appliance component and the coil component. The invention does not need to arrange the heat dissipation assembly on the electronic assembly and the coil assembly respectively, is favorable for the weight reduction and the miniaturization of the wireless power transmission device, and reduces the heat transfer between the electronic assembly and the coil assembly. The electronic component and the coil component are connected into a whole through the heat dissipation component, so that the appearance optimization of the wireless power transmission device is facilitated.

Description

Wireless power transmission device with heat dissipation assembly and unmanned aerial vehicle
Technical Field
The invention relates to the field of wireless power transmission devices, in particular to a wireless power transmission device with a heat dissipation assembly and an unmanned aerial vehicle.
Background
In the prior art, a wireless power transmission device generally includes a coil assembly and an electronic assembly, wherein the coil assembly is used for transmitting an electromagnetic signal or receiving the electromagnetic signal and converting the electromagnetic signal into electric energy. Correspondingly, the electronic component is used for supplying power to the coil component or converting the electric energy received by the coil component to make the coil component stable and usable. In the use process of the wireless power transmission device, the electronic component and the coil component can generate a large amount of heat, so that the electronic component and the coil component in the conventional wireless power transmission device are usually arranged separately and are respectively provided with a heat dissipation component, so that the electronic component and the coil component can sufficiently dissipate heat, and the heat of the electronic component and the coil component is prevented from being mutually conducted and accumulated. However, the electronic component and the coil component of the wireless power transmission device are separately provided and the heat dissipation components are provided respectively, which increases the volume and weight of the wireless power transmission device and is not beneficial to the weight reduction and miniaturization of the wireless power transmission device.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a wireless power transmission device with a heat dissipation assembly and an unmanned aerial vehicle, which are used for solving the problems of heavy weight, large volume and the like of the wireless power transmission device caused by separate arrangement of an electronic assembly and a coil assembly and separate arrangement of the heat dissipation assemblies in the prior art.
To achieve the above and other related objects, the present invention provides a wireless power transmission device with a heat dissipation assembly, which is characterized in that: the heat dissipation device comprises an electronic component, a coil component, a heat dissipation fan and a heat dissipation component, wherein the heat dissipation component is arranged between the electronic component and the coil component, the electronic component and the coil component are mutually connected through the heat dissipation component, a heat dissipation air duct is arranged in the heat dissipation component, the heat dissipation air duct separates the coil component from the electronic component, the heat dissipation fan is arranged corresponding to the heat dissipation component, and cooling air flow of the heat dissipation fan flows through the heat dissipation air duct and respectively dissipates heat of the electric appliance component and the coil component.
Optionally, a plurality of baffles are disposed in the heat dissipation air duct, the baffles divide the heat dissipation air duct into a plurality of flow channels, and the flow channels extend along the circulation direction of the heat dissipation air duct.
Optionally, the plurality of baffles are arranged, the arrangement direction of the baffles is perpendicular to the circulation direction of the heat dissipation air duct and the connection line direction between the electronic component and the coil component.
Optionally, the air supply direction of the cooling fan is the same as the circulation direction of the cooling air duct.
Optionally, the heat dissipation assembly further includes a collection cavity disposed between the heat dissipation fan and the heat dissipation air duct, and the collection cavity collects the cooling air flow of the heat dissipation fan and guides the cooling air flow into the heat dissipation air duct.
Optionally, the air supply area of the cooling fan is larger than the flow area of the cooling air duct, in the air supply direction of the cooling fan, the cooling fan and the cooling air duct are respectively communicated with two sides of the collecting cavity, and the distance between the two sides of the collecting cavity is 10 mm-30 mm.
Optionally, the electronic component includes a housing and an electronic module disposed in the housing, where the electronic component is disposed in an air supply range of the cooling fan, and in an air supply direction of the cooling fan, two sides of the housing are respectively provided with a ventilation opening, and a cooling air flow of the cooling fan flows through the electronic component through the ventilation openings.
Optionally, the heat dissipation assembly includes heating panel and fixed plate, the heating panel sets up on the fixed plate, the heating panel is last towards be provided with the recess on the one side of fixed plate, the recess with the fixed plate cooperation forms the heat dissipation wind channel.
Optionally, the electronic component is a transmitting end electronic component, and the coil component is a transmitting coil.
Optionally, the electronic component is a receiving-end electronic component, and the coil component is a receiving coil.
The invention also provides an unmanned aerial vehicle, which comprises a flying machine body and the wireless power transmission device with the heat dissipation assembly, wherein the wireless power transmission device is connected to the flying machine body, and the coil assembly of the wireless power transmission device is deviated from the flying machine body.
As described above, the wireless power transmission device with the heat dissipation assembly and the unmanned aerial vehicle have the following beneficial effects: because the radiating component is arranged between the electronic component and the coil component, the electronic component and the coil component share the radiating component to radiate, the radiating component does not need to be arranged on the electronic component and the coil component respectively, the weight reduction and the miniaturization of the wireless power transmission device are facilitated, meanwhile, the radiating air duct in the radiating component separates the coil component from the electronic component, the heat transfer between the electronic component and the coil component can be reduced, and the mutual heat influence between the electronic component and the coil component is prevented. The cooling air flow of the cooling fan flows through the cooling air channel to actively cool the electronic component and the coil component, so that the cooling efficiency of the cooling component is improved, and the mutual thermal influence between the electronic component and the coil component is further prevented. The electronic component and the coil component are connected into a whole through the heat dissipation component, when the electronic component and the coil component are connected in a wiring way, the connecting circuit can be shielded in the electronic component and the coil component, the exposed part of the connecting circuit and the length of the connecting circuit are reduced, the service life of the connecting circuit is prolonged, the structure of the wireless power transmission device is simplified, and the appearance optimization of the wireless power transmission device is facilitated.
Drawings
Fig. 1 is a schematic perspective view of a wireless power transmission device according to an embodiment of the invention.
Fig. 2 is a schematic top view of a wireless power transmission device according to an embodiment of the invention.
Fig. 3 is a schematic side view of a wireless power transmission device according to an embodiment of the invention.
Fig. 4 is an exploded view of a wireless power transmission device according to an embodiment of the invention.
Fig. 5 is a schematic diagram illustrating an internal structure of a wireless power transmission device according to an embodiment of the invention.
Fig. 6 is a schematic diagram illustrating an internal structure of a wireless power transmission device according to an embodiment of the invention.
Fig. 7 is a schematic cross-sectional view of a wireless power transmission device according to an embodiment of the invention.
Fig. 8 is a schematic cross-sectional view of a wireless power transmission device according to an embodiment of the invention.
Fig. 9 is a schematic perspective view of an unmanned aerial vehicle according to an embodiment of the present invention.
Fig. 10 is a schematic perspective view of a tripod of an unmanned aerial vehicle according to an embodiment of the present invention.
Reference numerals illustrate:
the heat dissipation air duct 1, the collection cavity 3, the flow channel 2, the electronic component 10, the electronic module 11, the upper cover 12, the waterproof joint 13, the pit 14, the coil component 20, the coil body 21, the lower cover 22, the magnetic core 23, the adhesive tape 24, the double faced adhesive tape 25, the heat dissipation component 30, the heat dissipation plate 31, the partition plate 32, the fixing plate 33, the protection ring 34, the heat dissipation fan 40, the flying machine body 50, the foot rest 60, the connecting rod 61, the foot rest body 62 and the adjusting rod 63.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention.
It should be noted that, the illustrations provided in the present embodiment merely illustrate the basic concept of the present invention by way of illustration, and only the components related to the present invention are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complex. The structures, proportions, sizes, etc. shown in the drawings attached hereto are for illustration purposes only and are not intended to limit the scope of the invention, which is defined by the claims, but rather by the claims. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the invention, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the invention may be practiced.
Referring to fig. 1 to 8, the present embodiment provides a wireless power transmission device with a heat dissipation assembly, which includes an electronic assembly 10, a coil assembly 20, a heat dissipation fan 40 and a heat dissipation assembly 30, wherein the heat dissipation assembly 30 is disposed between the electronic assembly 10 and the coil assembly 20, the electronic assembly 10 and the coil assembly 20 are connected with each other through the heat dissipation assembly 30, the heat dissipation assembly 30 has a heat dissipation air duct 1 therein, the heat dissipation air duct 1 separates the coil assembly 20 and the electronic assembly 10, the heat dissipation fan 40 is disposed corresponding to the heat dissipation assembly 30, and a cooling air flow of the heat dissipation fan 40 flows through the heat dissipation air duct 1 and dissipates heat of the electrical apparatus assembly and the coil assembly 20, respectively.
As shown in fig. 3, in the present embodiment, since the heat dissipation assembly 30 is disposed between the electronic assembly 10 and the coil assembly 20, the electronic assembly 10 and the coil assembly 20 share the heat dissipation assembly 30 to dissipate heat, and the heat dissipation assembly 30 is not required to be disposed on the electronic assembly 10 and the coil assembly 20, which is beneficial to the weight reduction and the miniaturization of the wireless power transmission device. Meanwhile, since the heat dissipation air duct 1 in the heat dissipation assembly 30 separates the coil assembly 20 and the electronic assembly 10, heat of the electronic assembly 10 can be prevented from being transferred to the coil assembly 20, and heat of the coil assembly 20 can be prevented from being transferred to the electronic assembly 10, the heat dissipation air duct 1 can reduce heat transfer between the electronic assembly 10 and the coil assembly 20, mutual heat influence between the electronic assembly 10 and the coil assembly 20 is avoided, and heat is prevented from being accumulated between the electronic assembly 10 and the coil assembly 20 after the electronic assembly 10 and the coil assembly 20 are connected together.
The cooling air flow generated by the cooling fan 40 flows through the cooling air duct 1 to actively cool the electronic component 10 and the coil component 20, so as to improve the cooling efficiency of the cooling component 30, and further prevent the mutual thermal influence between the electronic component 10 and the coil component 20. The electronic component 10 and the coil component 20 are connected into a whole through the heat dissipation component 30, when the electronic component 10 and the coil component 20 are connected in a wiring way, the electronic component 10 and the coil component 20 can be shielded, the exposed part of the connecting circuit and the length of the connecting circuit are reduced, the service life of the connecting circuit is prolonged, the structure of the wireless power transmission device is simplified, and the shape optimization of the wireless power transmission device is facilitated.
In this embodiment, the heat dissipation air duct 1 is in a cube shape, and the flow direction of the heat dissipation air duct 1, that is, the extending direction of the flow channel 2 is the length direction of the heat dissipation air duct 1. The direction of the connection line between the electronic component 10 and the coil component 20 is not the height direction of the heat dissipation air duct 1, and the direction perpendicular to the height direction and the length direction of the heat dissipation air duct 1 is the width direction.
Fig. 8 is a schematic cross-sectional view of the wireless power transmission device in the width direction of the heat dissipation duct 1. As shown in fig. 3 and 8, in the present embodiment, a plurality of separators 32 are disposed in the heat dissipation air duct 1, the separators 32 divide the heat dissipation air duct 1 into a plurality of flow channels 2, and the flow channels 2 extend along the flow direction of the heat dissipation air duct 1. The flow channel 2 can guide the flowing gas therein, so that the gas in the heat dissipation air duct 1 can orderly flow along the flowing direction of the heat dissipation air duct 1, namely the flowing extending direction, thereby avoiding the turbulence and turbulence of the cooling air flow in the heat dissipation air duct 1 in the flowing process, avoiding the reduction of the flowing efficiency of the cooling air flow caused by the turbulence and turbulence, and further ensuring the cooling efficiency of the cooling air in the heat dissipation air duct 1 to the electronic component 10 and the coil component 20.
In this embodiment, the partition plates 32 are elongated, each partition plate 32 is arranged in parallel with each other, and the extending direction of each partition plate 32, that is, the length direction of the partition plate 32 is parallel to the flowing direction of the heat dissipation air duct 1.
In some embodiments, the arrangement direction of the partition 32 is the direction of the connection line between the electronic component 10 and the coil component 20, that is, the height direction of the heat dissipation air channel 1. Meanwhile, the plate surface of the partition plate 32 is perpendicular to the height direction of the heat dissipation air duct 1. Specifically, the separators 32 are parallel to each other, the separators 32 are stacked one on top of the other in the height direction of the heat dissipation air duct 1, and a space exists between adjacent separators 32 to form the flow channel 2.
In the present embodiment, as shown in fig. 8, the arrangement direction of the partition plates 32 is perpendicular to the circulation direction of the heat dissipation air duct 1, and the arrangement direction of the partition plates 32 is perpendicular to the connection line direction between the electronic component 10 and the coil component 20. The plate surface of the partition plate 32 is perpendicular to the width direction of the heat dissipation air duct 1. The arrangement direction of the partition plates 32 is the width direction of the heat dissipation air duct 1. Specifically, in the present embodiment, the separators 32 are parallel to each other, the separators 32 are stacked one on top of the other in the width direction of the heat dissipation duct 1, and a space exists between adjacent separators 32 to form the flow passage 2.
The partition plates 32 are arranged along the width direction of the heat dissipation air duct 1, so that the flow channels 2 are also arranged along the width direction of the heat dissipation air duct 1, and therefore each flow channel 2 can be respectively contacted with the electronic component 10 and the coil component 20, and the heat dissipation effect of the flow channels 2 on the electronic component 10 and the coil component 20 is ensured.
Fig. 7 is a schematic cross-sectional view of the wireless power transmission device in the flow direction of the heat dissipation duct 1. As shown in fig. 7, in the present embodiment, the air supply direction of the heat radiation fan 40 is the same as the flow direction of the heat radiation air duct 1. That is, the cooling fan 40 supplies air along the flowing direction of the cooling air duct 1, the cooling air duct 1 does not need to change the flow direction of the cooling air of the cooling fan 40, and the flowing resistance of the cooling air of the cooling fan 40 in the cooling air duct 1 is reduced.
In some embodiments, the air supply area of the cooling fan 40 is equal to or smaller than the flow area of the cooling air duct 1, and the cooling fan 40 may directly send all the cooling air into the cooling air duct 1. However, in some cases, to increase the air supply amount of the cooling fan 40, it is necessary to increase the size of the cooling fan 40 and the air supply area of the cooling fan 40 so that the air supply area of the cooling fan 40 is larger than the flow area of the cooling air duct 1, so that the cooling air of the cooling fan 40 cannot be entirely supplied into the cooling air duct 1.
Therefore, as shown in fig. 7, in the present embodiment, the heat dissipating assembly 30 further includes a collecting chamber 3 disposed between the heat dissipating fan 40 and the heat dissipating air duct 1, and the collecting chamber 3 collects the cooling air flow of the heat dissipating fan 40 and guides the cooling air flow into the heat dissipating air duct 1.
Specifically, in the air supply direction of the cooling fan 40, the air supply area of the cooling fan 40 is larger than the flow area of the cooling air duct 1, and the cooling fan 40 and the cooling air duct 1 are respectively connected to two sides of the collecting chamber 3. In the air supply direction of the cooling fan 40, the distance between the two sides of the collecting cavity 3 can be reasonably adjusted according to practical situations. Too short interval between the two sides of the collecting cavity 3 can lead to the cooling air flow to collide on one side wall of the collecting cavity 3 connected with the heat dissipation air duct 1, the flowing resistance of the cooling air is increased, too long interval between the two sides of the collecting cavity 3 can form turbulence and turbulence in the collecting cavity 3, and the circulation efficiency of the cooling air is reduced. In this embodiment, in the air supply direction of the cooling fan 40, the distance between the two sides of the collecting cavity 3 is 10 mm-30 mm, so that the cooling air can be prevented from striking the side wall of the collecting cavity 3, which is connected with the cooling air duct 1, due to the too short distance between the two sides of the collecting cavity 3, and the turbulence and turbulence of the cooling air in the collecting cavity 3 can be avoided due to the too long distance between the two sides of the collecting cavity 3. Specifically, in this embodiment, the distance between the two sides of the collection chamber 3 is 15mm to 25mm, for example 20mm.
The electronic assembly 10 includes a housing and an electronic module 11 disposed in the housing, wherein the electronic module 11 is a PCBA board (Printed Circuit Board Assembly) in this embodiment. In some embodiments, the electronic component 10 is disposed within the air supply range of the cooling fan 40, and ventilation openings are respectively formed on two sides of the housing in the air supply direction of the cooling fan 40, and the cooling air flow of the cooling fan 40 flows through the electronic component 10 through the ventilation openings. Since the cooling air flow of the cooling fan 40 directly flows through the electronic component 10 through the ventilation opening, the cooling air can directly cool the electronic component 10, and the cooling efficiency is higher. In this embodiment, the housing encloses the electronic module 11 in the housing, improves the sealing performance of the electronic assembly 10 as a whole, prevents the electronic module 11 in the housing from entering ash and being wet, and improves the protection level of the electronic assembly 10.
In some embodiments, the electronic component 10 is a transmitting-end electronic component 10, the coil component 20 is a transmitting coil, and after the wireless power transmission device is powered on, the transmitting coil is powered by the transmitting-end electronic component 10, and converts the electric energy into an electromagnetic signal form by the transmitting coil so as to realize outward wireless power transmission.
In some embodiments, the electronic component 10 is a receiving-end electronic component 10, the coil component 20 is a receiving coil, and after receiving the electromagnetic signal, the receiving coil converts energy in the electromagnetic signal into electric energy and transmits the electric energy to the receiving-end electronic component 10, and the receiving-end electronic component 10 converts the electric energy generated by the receiving coil into stable and usable electric energy to realize wireless power transmission. The electric energy converted by the receiving end electronic component 10 can be stored by adopting an electric energy storage device such as a lithium battery, and wireless charging can be realized.
Specifically, as shown in fig. 4, in the present embodiment, the heat dissipation assembly 30 includes a heat dissipation plate 31 and a fixing plate 33, a groove is disposed on the heat dissipation plate 31, and a plurality of partitions 32 are integrally formed in the groove. The heat dissipation plate 31 is connected to the fixing plate 33, the grooves and the fixing plate 33 are combined to form the heat dissipation air channel 1, and the partition plate 32 is matched with the fixing plate 33 to divide the heat dissipation air channel 1 into a plurality of flow channels 2. The housing of the electronic component 10 is an upper cover 12, the upper cover 12 is mounted on a side of the heat dissipation plate 31 away from the fixing plate 33, and forms a mounting space with the heat dissipation plate 31, and the electronic module 11 is disposed in the mounting space between the upper cover 12 and the heat dissipation plate 31. The outer side of the upper cover 12, i.e. the side far away from the electronic module 11, is regularly provided with a plurality of pits 14, which play a role in weight reduction. The upper cover 12 is provided with a waterproof connector 13, and the electronic module 11 in the upper cover 12 can be connected with external equipment from the waterproof connector 13. In the present embodiment, the collecting chamber 3 is formed by combining the upper cover 12 and the lower cover 22, and the heat dissipation fan 40 is connected to both the upper cover 12 and the lower cover 22.
The coil assembly 20 includes a lower cover 22 and a coil body 21, the lower cover 22 being mounted on a side of the fixing plate 33 remote from the heat dissipation plate 31 and forming a mounting space with the fixing plate 33, the coil body 21 being mounted in the mounting space formed between the lower cover 22 and the fixing plate 33. In this embodiment, the coil assembly 20 further includes a magnetic core 23, and the magnetic core 23 can conduct magnetic force and guide electromagnetic signals. The magnetic core 23 can conduct heat, which is beneficial to heat dissipation of the coil body 21, and meanwhile, the magnetic core 23 can also block magnetism, so that interference of electromagnetic signals on the electronic component 10 is reduced. The magnetic core 23 is attached to the coil body 21 on the side close to the fixing plate 33 by a high temperature resistant adhesive tape 24. The coil body 21 is adhered to the lower cover 22 by a double-sided tape 25.
In this embodiment, through holes are respectively formed in the fixing plate 33 and the heat dissipation plate 31, and a protection coil is disposed in the through holes, and a connection line between the electronic component 10 and the coil component 20 passes through the heat dissipation component 30 via the protection coil, so that the protection coil protects the connection line.
Referring to fig. 9 to 10, the present embodiment further provides an unmanned aerial vehicle, which includes a flying machine body 50, and a wireless power transmission device with a heat dissipation component 30 as described above, wherein the wireless power transmission device is connected to the flying machine body 50, and the coil component 20 of the wireless power transmission device faces away from the flying machine body 50. An energy storage device, such as a lithium battery, is disposed within the aircraft body 50. The wireless power transmission device is connected with the energy storage device.
As shown in fig. 10, in the present embodiment, a stand 60 is disposed on the aircraft body 50, the stand 60 includes a stand body 62 and a connecting rod 61, and the stand body 62 is connected to the aircraft body 50 through the connecting rod 61. The stand body 62 is provided with an adjusting rod 63, the wireless power transmission device is fixed on the stand 60 through the fixing plate 33 and the adjusting rod 63, and the coil assembly 20 of the wireless power transmission device is arranged on one side far away from the flying machine body 50 so as to be convenient for docking external equipment. The adjusting rod 63 is connected to the foot rest body 62 through a hoop structure, and the adjusting rod 63 can adjust the relative position between the adjusting rod and the foot rest body 62 through the hoop structure, so that the adjustment between the wireless power transmission device and the position of the flying machine body 50 is realized. In this embodiment, the foot stand body 62 and the connecting rod 61 are made of hollow rods, and the connecting line between the wireless power transmission device and the flying machine body 50 passes through the upper cover 12 from the waterproof connector 13, is arranged in the foot stand 60 and the connecting rod 61 along the foot stand body 62 and the connecting rod 61, and is finally connected with the flying machine body 50, and the foot stand 60 and the connecting rod 61 play a role in protecting the connecting line.
In some embodiments, the wireless power transmission device provided on the unmanned aerial vehicle is used for charging the energy storage device, the electronic component 10 is a receiving-end electronic component 10, and the coil component 20 is a receiving coil. Unmanned vehicles can get into wireless transmission scope that charges emitter through the flight, charges through the wireless power transmission device that sets up on the unmanned vehicles. Compared with the traditional connection modes such as a traditional plug, a traditional cable and the like, accurate positioning is not needed, the requirement on the position precision of butt joint can be reduced, and the operation difficulty of the unmanned aerial vehicle is reduced.
In some embodiments, the wireless power transmission device provided on the unmanned aerial vehicle is used for converting the electric energy in the energy storage device into an electromagnetic signal to charge the outside, the electronic component 10 is a transmitting-end electronic component 10, and the coil component 20 is a transmitting coil. Unmanned vehicles can arrive some conventional mode through the flight and be difficult to the position that arrives, produces electromagnetic signal through the wireless power transmission device who sets up on the unmanned vehicles, makes the wireless power transmission device produced electromagnetic signal cover wireless receiving arrangement that charges, charges equipment through wireless receiving arrangement that charges, need not the connecting cable, satisfies the emergent demand of charging to the position that conventional mode is difficult to arrive.
In summary, in the wireless power transmission device with the heat dissipation assembly 30 and the unmanned aerial vehicle provided in the embodiment, the heat dissipation assembly 30 is disposed between the electronic assembly 10 and the coil assembly 20, and the electronic assembly 10 and the coil assembly 20 share the heat dissipation assembly 30 to dissipate heat, so that the heat dissipation assembly 30 is not required to be disposed on the electronic assembly 10 and the coil assembly 20, which is beneficial to the light weight and the miniaturization of the wireless power transmission device, and meanwhile, the heat dissipation air duct 1 in the heat dissipation assembly 30 separates the coil assembly 20 and the electronic assembly 10, so that the heat transfer between the electronic assembly 10 and the coil assembly 20 can be reduced, and the mutual thermal influence between the electronic assembly 10 and the coil assembly 20 is prevented. The cooling air flow of the cooling fan 40 flows through the cooling air duct 1 to actively cool the electronic component 10 and the coil component 20, so that the cooling efficiency of the cooling component 30 is improved, and the mutual thermal influence between the electronic component 10 and the coil component 20 is further prevented. The electronic component 10 and the coil component 20 are connected into a whole through the heat dissipation component 30, when the electronic component 10 and the coil component 20 are connected in a wiring way, the connecting circuit can be shielded between the electronic component 10 and the coil component 20, the exposed part of the connecting circuit and the length of the connecting circuit are reduced, the service life of the connecting circuit is prolonged, the structure of the wireless power transmission device is simplified, and the appearance optimization of the wireless power transmission device is facilitated.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims (10)

1. A wireless power transfer apparatus with a heat sink assembly, characterized in that: the heat dissipation device comprises an electronic component, a coil component, a heat dissipation fan and a heat dissipation component, wherein the heat dissipation component is arranged between the electronic component and the coil component, the electronic component and the coil component are mutually connected through the heat dissipation component, a heat dissipation air duct is arranged in the heat dissipation component, the heat dissipation air duct separates the coil component from the electronic component, the heat dissipation fan is arranged corresponding to the heat dissipation component, and cooling air flow of the heat dissipation fan flows through the heat dissipation air duct and respectively dissipates heat of the electric appliance component and the coil component.
2. The wireless power transfer apparatus with heat sink assembly of claim 1, wherein: the heat dissipation air duct is internally provided with a plurality of partition boards, the partition boards divide the heat dissipation air duct into a plurality of flow channels, and the flow channels extend along the circulation direction of the heat dissipation air duct.
3. The wireless power transfer apparatus with heat sink assembly of claim 2, wherein: the plurality of partition boards are arranged, the arrangement direction of the partition boards is perpendicular to the circulation direction of the heat dissipation air duct and the connection line direction between the electronic component and the coil component.
4. The wireless power transfer apparatus with heat sink assembly of claim 1, wherein: the air supply direction of the cooling fan is the same as the circulation direction of the cooling air duct.
5. The wireless power transfer apparatus with heat sink assembly of claim 4, wherein: the heat dissipation assembly further comprises a collection cavity arranged between the heat dissipation fan and the heat dissipation air duct, and the collection cavity collects cooling air flow of the heat dissipation fan and guides the cooling air flow into the heat dissipation air duct.
6. The wireless power transfer apparatus with heat sink assembly of claim 5, wherein: the air supply area of the cooling fan is larger than the flow area of the cooling air duct, in the air supply direction of the cooling fan, the cooling fan and the cooling air duct are respectively communicated with the two sides of the collecting cavity, and the distance between the two sides of the collecting cavity is 10-30 mm.
7. The wireless power transfer apparatus with heat sink assembly of claim 1, wherein: the electronic component comprises a shell and an electronic module arranged in the shell, the electronic component is arranged in the air supply range of the cooling fan, ventilation openings are respectively formed in two sides of the shell in the air supply direction of the cooling fan, and cooling air flow of the cooling fan passes through the ventilation openings to flow through the electronic component.
8. The wireless power transfer apparatus with heat sink assembly according to any one of claims 1 to 7, wherein: the heat dissipation assembly comprises a heat dissipation plate and a fixing plate, wherein the heat dissipation plate is arranged on the fixing plate, a groove is formed in one side of the heat dissipation plate, which faces the fixing plate, and the groove is matched with the fixing plate to form the heat dissipation air channel.
9. The wireless power transfer apparatus with heat sink assembly according to any one of claims 1 to 7, wherein: the electronic component is a transmitting end electronic component, and the coil component is a transmitting coil; or the electronic component is a receiving end electronic component, and the coil component is a receiving coil.
10. An unmanned aerial vehicle, characterized in that: comprising a flying body and a wireless power transfer device with a heat sink assembly as claimed in claim 8 or 9, said wireless power transfer device being attached to said flying body with a coil assembly of said wireless power transfer device facing away from said flying body.
CN202310353375.5A 2023-04-04 2023-04-04 Wireless power transmission device with heat dissipation assembly and unmanned aerial vehicle Pending CN116317186A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310353375.5A CN116317186A (en) 2023-04-04 2023-04-04 Wireless power transmission device with heat dissipation assembly and unmanned aerial vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310353375.5A CN116317186A (en) 2023-04-04 2023-04-04 Wireless power transmission device with heat dissipation assembly and unmanned aerial vehicle

Publications (1)

Publication Number Publication Date
CN116317186A true CN116317186A (en) 2023-06-23

Family

ID=86799671

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310353375.5A Pending CN116317186A (en) 2023-04-04 2023-04-04 Wireless power transmission device with heat dissipation assembly and unmanned aerial vehicle

Country Status (1)

Country Link
CN (1) CN116317186A (en)

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