CN219644417U - Underwater electric energy receiving device and underwater wireless charging system - Google Patents

Abstract

The utility model relates to an underwater electric energy receiving device and an underwater wireless charging system, which comprise an electric energy receiving part, wherein the electric energy receiving part is provided with an electric energy receiving surface; and a heat dissipation part attached to the power receiving surface; the heat dissipation part is provided with a plurality of heat dissipation channels, each heat dissipation channel is provided with an opening communicated with external water, the underwater electric energy receiving device is formed through special structural design, the heat dissipation channels suitable for the underwater electric energy receiving device are formed, and on the premise that the charging efficiency is not affected, heat generated by the operation of the underwater electric energy receiving device can be directly conducted to the external water to exchange heat with the external water, so that the heat dissipation efficiency of the underwater electric energy receiving device is effectively improved.

Description

Underwater electric energy receiving device and underwater wireless charging system

Technical Field

The utility model relates to the technical field of underwater wireless charging, in particular to an underwater electric energy receiving device for underwater wireless charging and a heat dissipation system thereof.

Background

With the development of technologies such as underwater robots and unmanned ships, the problem of electric energy supply to equipment such as underwater robots and unmanned ships is increasingly emphasized and studied, and two charging modes of charging by using a contact charging device and wireless charging technology to realize wireless charging of unmanned ships are mainly included in the prior art, wherein the research on the wireless charging technology is focused more due to the advantages of the wireless charging technology in various aspects such as convenience, safety and the like, and particularly the underwater wireless charging technology.

The underwater wireless charging device uses an integrated power circuit, the integrated power circuit comprises a high-power conversion circuit, the high-power conversion circuit is usually realized by a half-bridge type or full-bridge type circuit structure, and the high-power conversion circuit can flow in a larger current in the wireless charging process of the unmanned ship to generate a large amount of heat; in addition, the integrated power circuit commonly uses switching electronic devices such as IGBT (insulated gate bipolar transistor) or MOSFET (metal oxide semiconductor field effect transistor) and the like, and device loss can be generated during operation, so that the heat generation is further increased.

Aiming at the heat dissipation problem, the prior art often adopts the modes of adding a sealing cavity in an underwater wireless charging system, injecting cooling liquid into the sealing cavity to dissipate heat, and the like, so that the heat dissipation efficiency is low and the structure is complex; on the other hand, the heat dissipation system in the prior art dissipates heat to the whole underwater wireless charging system, and is often focused on heat dissipation of the charging end, but ignores the heat dissipation requirement of the wireless power receiving end which is separated from the charging end, so that the heat dissipation efficiency of the wireless power receiving end is low, and the wireless power transmission efficiency is affected.

Disclosure of Invention

Based on this, it is necessary to provide an underwater power receiving device with a special heat dissipation structure design for the heat dissipation problem of the wireless power receiving device.

An underwater power receiving device comprises a power receiving part, wherein the power receiving part is provided with a power receiving surface; and a heat dissipation part attached to the power receiving surface; the heat dissipation part is provided with a plurality of heat dissipation channels, and each heat dissipation channel is provided with an opening communicated with an external water body.

In one embodiment, the heat dissipation part extends lengthwise along a first direction and comprises a first end and a second end which are oppositely arranged in the first direction; the heat dissipation channel comprises a first straight line segment, a bending segment and a second straight line segment which are sequentially connected, the bending segment is located at the second end of the heat dissipation part, one end of the first straight line segment is communicated with the first end of the heat dissipation part, the other end of the first straight line segment extends to the second end of the heat dissipation part along the first direction and is communicated with one end of the bending segment, one end of the second straight line segment is communicated with the other end of the bending segment, and the other end of the second straight line segment extends to the second end of the heat dissipation part along the first direction.

In one embodiment, the power receiving surface is an arc surface extending lengthwise along the first direction, and the heat dissipation portion is attached to the power receiving surface and is matched with the arc surface of the power receiving surface.

In one embodiment, the heat dissipation part comprises a heat dissipation shell and at least one heat conduction member, wherein the heat dissipation shell is provided with a heat dissipation cavity with one end open, and the heat conduction member is positioned in the heat dissipation cavity and separates the heat dissipation cavity to form the heat dissipation channel.

In one embodiment, the heat dissipation part comprises a first heat conduction plate, and the first heat conduction plate is arranged on one side of the heat dissipation channel close to the electric energy receiving part and is attached to the electric energy receiving surface; wherein the first heat-conducting plate and the power-receiving surface have the same curvature.

In one embodiment, the heat dissipation portion further includes a second heat conduction plate, the second heat conduction plate is disposed on a side, away from the electric energy receiving portion, of the heat dissipation channel along a second direction, and a control unit is disposed on the second heat conduction plate.

In one embodiment, the underwater power receiving device further comprises a protective shell, the protective shell is covered on one side, far away from the heat dissipation part, of the second heat conduction plate, the second heat conduction plate and the shell jointly form a containing cavity, and the control unit is arranged in the containing cavity.

In one embodiment, the power receiving surface further includes an extension end, the extension end is located at a side of the power receiving surface away from the heat dissipation channel, and a communication hole is formed in the extension end.

According to another aspect of the present utility model, there is provided an underwater wireless charging system, including the above-mentioned underwater power receiving device, and further including an underwater power transmitting device, wherein the underwater power transmitting device includes a power transmitting portion electrically connected to the power receiving portion of the underwater power receiving device.

In one embodiment, a side surface of the power emission part forms a power emission surface; the electric energy transmitting surface and the electric energy receiving surface of the underwater electric energy receiving device are arc surfaces with the same curvature, and the electric energy receiving surface and the electric energy transmitting surface can be mutually attached and electrically connected.

The underwater electric energy receiving device forms a heat dissipation channel suitable for the underwater electric energy receiving device through a special structural design, so that heat generated by operation of the underwater electric energy receiving device can be directly conducted to an external water body to exchange heat with the external water body, and the heat dissipation efficiency of the underwater electric energy receiving device is effectively improved.

Drawings

FIG. 1 is a schematic diagram of an underwater power receiving device according to an embodiment of the present utility model;

FIG. 2 is a three-dimensional perspective view of an underwater power receiving device according to an embodiment of the present utility model;

FIG. 3 is a front view of an underwater power receiving device according to an embodiment of the present utility model;

FIG. 4 is a left cross-sectional view of an elevation view of an underwater power receiving apparatus according to an embodiment of the present utility model;

FIG. 5 is a top cross-sectional view of an elevation view of an underwater power receiving device provided in accordance with an embodiment of the present utility model;

FIG. 6 is an assembly diagram of an underwater power receiving device according to an embodiment of the present utility model;

reference numerals illustrate:

1. an electric power receiving unit; 11. an electrical energy receiving surface; 111. an extension end; 112. a communication hole; 12. a wireless charging receiving coil; 13. an anti-interference component; 2. a heat dissipation part; 21. a heat dissipation channel; 211. an inlet and an outlet; 22. a side plate; 23. a first heat-conducting plate; 24. a second heat-conducting plate; 241. a protective shell; 25. a heat conductive member; 251. a first straight line segment; 252. a curved section; 253. a second straight line segment; 2. unmanned ship.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are 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 the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Referring to fig. 1, fig. 1 shows a schematic diagram of an underwater power receiving device provided by the utility model in an underwater wireless charging system and a device to be charged (the device to be charged is an unmanned ship 2 in the drawing), wherein the underwater power receiving device is internally provided with a power receiving part 1 and a heat dissipating part 2, the heat dissipating part 2 further comprises a heat dissipating channel 21 with an opening communicated with an external water body, so that water flow in the external water body can enter the heat dissipating channel 21 through the opening, and heat exchange between the heat dissipating part 2 and the external water body is accelerated.

Specifically, referring to fig. 2, 4 and 6, the heat dissipation portion 2 includes a heat dissipation housing and a heat conduction member 25 disposed in the heat dissipation housing, the heat dissipation housing is of a hollow shell structure extending lengthwise along a first direction (X direction in fig. 1 and 3), and includes a first end and a second end disposed opposite to each other in the first direction, the heat dissipation housing has a heat dissipation cavity, and the heat dissipation cavity extends from the first end to the second end along the first direction, the first end is provided with an opening communicating the heat dissipation cavity with an external water body, the heat conduction member 26 is disposed in the heat dissipation cavity and separates the heat dissipation cavity to form a heat dissipation channel 21, and heat dissipation is performed simultaneously by using the heat conduction member 25 and the heat dissipation channel 21, so that heat dissipation efficiency can be effectively improved.

The heat dissipation shell comprises a side plate 22, a first heat conduction plate 23 and a second heat conduction plate 24, wherein the first heat conduction plate 23 and the second heat conduction plate 24 are arranged at intervals in a second direction (namely, Y direction in FIG. 3), the side plate 22 is connected between the first heat conduction plate 23 and the second heat conduction plate 24, the side plate 22, the first heat conduction plate 23 and the second heat conduction plate 24 jointly enclose to form a heat dissipation cavity, and an opening of the heat dissipation cavity is formed on the side plate 22.

In this way, the first heat-conducting plate 23 is used for conducting heat generated by the electric energy receiving part 1 to the heat dissipation part 2, and the underwater electric energy receiving device exchanges heat with the water body in the heat dissipation cavity, so that the water body can be prevented from directly contacting with the electric energy receiving part 1, and impact and loss are caused to the electric energy receiving part 1.

The heat conducting member 25 is protruding on one side of the first heat conducting plate 23 facing the heat dissipation cavity and extends along the second direction to abut against the second heat conducting plate 24. In some embodiments, the heat conducting member 25 is formed by a heat pipe, so that heat can be radiated to water flow in the heat radiating channel 21 for radiating, and the heat can be brought from the heat radiating cavity to the opening, and heat exchange is directly performed with external water at the opening, so that the heat radiating efficiency is improved.

In some embodiments, referring to fig. 5, the heat conducting members 25 are U-shaped, so that a U-shaped heat dissipation channel 21 is formed between the heat conducting members 25 and the side plate 22 of the heat dissipation housing and between the adjacent heat conducting members 25. Specifically, the heat dissipation path 21 includes a first straight line segment 251, a curved segment 252, and a second straight line segment 253, wherein one end of the first straight line segment 251 is communicated with the first end of the heat dissipation portion 2 to form an inlet/outlet 211, and the other end extends to the second end of the heat dissipation portion 2 along the first direction and is communicated with one end of the curved segment 252; one end of the second straight line segment 253 is communicated with the first end of the heat dissipation part 2, the other end of the second straight line segment 253 extends to the second end of the heat dissipation part 2 along the first direction and is communicated with the other end of the bent segment 252 to form an inlet and outlet 211, so that water flow of external water flows in the heat dissipation channel 21 through the inlet and outlet 211 of the heat dissipation channel 21, the contact area between the heat conduction piece 25 and the water is increased by the arrangement of the heat dissipation channel 21, the heat exchange efficiency is further improved, and efficient heat dissipation is further achieved.

In some embodiments, referring to fig. 2, fig. 4, and fig. 6, a protective shell 241 is further disposed on a side, far away from the heat dissipation portion 2, of the second heat conduction plate 24 along the second direction, the second heat conduction plate 24 and the protective shell 241 together form a containing cavity, a control unit is disposed in the containing cavity, and is used for controlling a circuit of the whole electric energy receiving device, in some embodiments, the control unit includes an integrated power supply circuit, and the integrated power supply circuit includes a high-power conversion circuit, a switch electronic device, and other heating elements, and heat generated by the heating portion is conducted into the heat dissipation channel 21 and the heat conduction member 25 through the second heat conduction plate 24, so that water body and the integrated power supply circuit can be prevented from contacting, and external water body can be fully utilized for heat dissipation, so that heat dissipation efficiency is remarkably improved.

In the utility model, the heat conducting member 25, the heat radiating channel 21 and the heat conducting plate form the heat radiating part 2, and heat is jointly radiated by using the heat conducting member 25 to bring heat from the heat radiating cavity to the opening and using the heat radiating channel 21 to conduct heat to the water body in the channel, so that when foreign matters in the external water body enter the heat radiating channel 21 to cause blockage, the heat radiating channel 21 designed in the prior art can hardly radiate any more, and the design of the utility model can well avoid the problem of single heat radiating mode adopted by the underwater wireless charging system in the prior art. In some embodiments, the heat conducting members 25 are parallel to each other to form a plurality of heat dissipation channels 21 parallel to each other, so as to further increase the contact area between the heat conducting members 25 and the water body and improve the heat conduction efficiency.

Referring to fig. 4 and 6, the power receiving portion 1 has a power receiving surface 11, a plurality of power receiving units are disposed on the power receiving surface 11, the power receiving surface 11 is an arc surface extending lengthwise along the first direction, the power receiving surface 11 is provided with a housing extending along the second direction, the heat dissipating portion 2 and the accommodating cavity are covered and enclosed in the housing, a layer of protection is added to the heat dissipating portion 2, so as to avoid collision damage with sundries in water, and the power receiving units are also attached to the power receiving surface 11 in an arc shape, so as to increase magnetic flux exchange and charging efficiency. Meanwhile, the first heat conducting plate 23, the heat conducting member 25 and the heat dissipation channel 21 are all attached to the power receiving surface 11, where the first heat conducting plate 23 and the power receiving unit are in contact with each other, and in some embodiments, the first heat conducting plate 23, the heat conducting member 25 and the heat dissipation channel 21 are arc surfaces matching with the power receiving surface 11. By the arrangement, the whole underwater power receiving device can effectively dissipate heat of the underwater power receiving device through the heat dissipation part 2 while improving the charging efficiency.

In some embodiments, referring to fig. 6, all the electric energy receiving units are arranged at intervals along the first direction, each electric energy receiving unit includes a wireless charging receiving coil 12 and an anti-interference component 13, the wireless charging receiving coil 12 is arranged on one side surface of the electric energy receiving part, the anti-interference component 13 is arranged on one side of the wireless charging receiving coil 12 far away from the electric energy receiving part, the wireless charging receiving coil is in a micro-bending design, the bending radian of the micro-bending design is optimized to a certain extent, the magnetic coupling coefficient in the wireless charging process is improved by the bending degree after the optimization, and the wireless charging efficiency of the underwater wireless charging system is improved.

In some embodiments, the electric energy receiving surface 11 is provided with a drain hole on one side of the curved section 252 of the heat conducting member 25, which is communicated with an external water body, so that after the water flow of the external water body enters the heat dissipation channel 21 from any one of the inlet and outlet 211, the water flows out of the heat dissipation channel 21 through the other inlet and outlet 211 and the drain hole, thereby improving the water flow circulation speed in the heat dissipation channel 21 and further improving the heat dissipation efficiency.

In some embodiments, referring to fig. 2 and 3, the power receiving surface 11 further includes an extension 111 along the first direction away from the heat dissipation cavity and near a side of the inlet 211 of the heat dissipation channel 21, for preventing impurities in the external water body from directly colliding with the power receiving unit, the heat dissipation part 2, and the like. Further, the extending end 111 of the power receiving surface 11 is further provided with a communication hole 112, so that water flow of the external water body can flow freely in the second direction, hot water after heat exchange is prevented from accumulating at the extending end 111, and the water flow circulation speed of the external water body at the extending end 111 can be increased. In some embodiments, the communication hole 112 may also be used as a limiting groove for being fixedly connected with other devices on the underwater wireless charging system, so as to enhance the stability of the underwater power receiving device.

In some embodiments, the underwater wireless charging system comprises an underwater power transmission device comprising a power transmission portion electrically connected to the power reception portion 1 of the underwater power reception device. In some embodiments, a side surface of the power emitting portion forms a power emitting surface; the electric energy emitting surface and the electric energy receiving surface 11 of the underwater electric energy receiving device are arc surfaces with the same curvature, the electric energy receiving surface 11 and the electric energy emitting surface can be mutually attached and electrically connected, and the efficient heat dissipation of the underwater electric energy receiving device is realized on the basis of guaranteeing the electric energy receiving efficiency of the underwater electric energy receiving device.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. An underwater power receiving device, comprising:

the power receiving part is provided with a power receiving surface; a kind of electronic device with high-pressure air-conditioning system

A heat radiation part attached to the power receiving surface;

the heat dissipation part is provided with a plurality of heat dissipation channels, and each heat dissipation channel is provided with an opening communicated with an external water body.

2. The underwater power receiving device as defined in claim 1, wherein the heat dissipating portion extends lengthwise in the first direction, and includes a first end and a second end disposed opposite to each other in the first direction;

the heat dissipation channel comprises a first straight line segment, a bending segment and a second straight line segment which are sequentially connected, the bending segment is located at the second end of the heat dissipation part, one end of the first straight line segment is communicated with the first end of the heat dissipation part, the other end of the first straight line segment extends to the second end of the heat dissipation part along the first direction and is communicated with one end of the bending segment, one end of the second straight line segment is communicated with the other end of the bending segment, and the other end of the second straight line segment extends to the first end of the heat dissipation part along the first direction.

3. The underwater power receiving device as in claim 2, wherein the heat dissipation portion comprises a heat dissipation housing having a heat dissipation cavity with one end opened, and at least one heat conduction member located in the heat dissipation cavity and dividing the heat dissipation cavity to form the heat dissipation channel.

4. The underwater power receiving device of claim 3, wherein the heat dissipation chamber comprises a first heat conduction plate which is arranged on one side of the heat dissipation chamber close to the power receiving part and is attached to the power receiving surface;

wherein the first heat-conducting plate and the power-receiving surface have the same curvature.

5. The underwater power receiving device as in claim 3, wherein the heat dissipation chamber further comprises a second heat conduction plate provided at a side of the heat dissipation chamber away from the power receiving portion, and a control unit is provided on the second heat conduction plate.

6. The underwater power receiving device of claim 5, further comprising a protective housing covering a side of the second heat conduction plate away from the heat dissipation portion, the second heat conduction plate and the housing together forming a housing cavity, the control unit being disposed in the housing cavity.

7. The underwater power receiving device as in claim 1, wherein the power receiving surface further comprises an extension end, the extension end being located at a side of the power receiving surface away from the heat dissipation channel, and a communication hole being provided on the extension end.

8. The underwater power receiving device as in claim 1, wherein the power receiving surface is an arc surface extending lengthwise in the first direction, and the heat dissipation portion is attached to the power receiving surface so as to be matched with the power receiving surface.

9. An underwater wireless charging system comprising an underwater power receiving device as claimed in any one of claims 1 to 8, further comprising an underwater power transmitting device comprising a power transmitting portion electrically connected to the power receiving portion of the underwater power receiving device.

10. The underwater wireless charging system of claim 9, wherein a side surface of the power transmitting portion forms a power transmitting surface;

the electric energy transmitting surface and the electric energy receiving surface of the underwater electric energy receiving device are arc surfaces with the same curvature, and the electric energy receiving surface and the electric energy transmitting surface can be mutually attached and electrically connected.