CN115996549A

CN115996549A - Heat dissipation device and charger

Info

Publication number: CN115996549A
Application number: CN202310133728.0A
Authority: CN
Inventors: 卢晓剑; 杨东岭
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2023-02-16
Filing date: 2023-02-16
Publication date: 2023-04-21
Also published as: WO2024169955A1

Abstract

The embodiment of the application provides a heat abstractor and charger, wherein, heat abstractor includes: the bearing plate is provided with a plurality of first flow guide structures, and a first heat dissipation channel is formed between two adjacent first flow guide structures; an injection air outlet is formed in the first side of the bearing plate; the first fan is provided with a first fan air outlet, the first fan air outlet is arranged on the second side of the bearing plate, the second side of the bearing plate is opposite to the first side of the bearing plate, and the first fan air outlet is opposite to the injection air outlet so as to form an injection air channel on the bearing plate; the first heat dissipation channel is communicated with the injection air channel. The heat dissipation device is used for dissipating heat of a piece to be dissipated, and has the characteristics of large air inlet quantity and good heat dissipation effect. The charger comprises the heat dissipation device.

Description

Heat dissipation device and charger

Technical Field

The application relates to the technical field of heat dissipation, in particular to a heat dissipation device and a charger.

Background

In some situations where heat dissipation is required to be performed on a member to be cooled, a cooling fan is often used to dissipate the heat of the member to be cooled. The working principle of the cooling fan can be understood as that the air flow blown to the to-be-cooled member by the cooling fan takes away the heat of the to-be-cooled member in a mode of blowing towards the to-be-cooled member. The radiating fan blows air to the part to be radiated to radiate heat, so that the problem of low radiating efficiency exists.

Disclosure of Invention

The embodiment of the application provides a heat abstractor and a charger, so as to solve the problem of how to improve the heat dissipation efficiency of the heat abstractor.

In a first aspect, embodiments of the present application provide a heat dissipating device.

The heat dissipating device provided in the embodiment of the application includes: the bearing plate is provided with a plurality of first flow guide structures, and a first heat dissipation channel is formed between two adjacent first flow guide structures; an injection air outlet is formed in the first side of the bearing plate; the first fan is provided with a first fan air outlet, the first fan air outlet is arranged on the second side of the bearing plate, the second side of the bearing plate is opposite to the first side of the bearing plate, and the first fan air outlet is opposite to the injection air outlet so as to form an injection air channel on the bearing plate; the first heat dissipation channel is communicated with the injection air channel.

Optionally, the plurality of first diversion structures form a plurality of first heat dissipation channels, the plurality of first diversion structures are all located the homonymy of penetrating the wind passageway, the plurality of first heat dissipation channels all with penetrating the wind passageway intercommunication.

Optionally, a plurality of second diversion structures are further arranged on the bearing plate, a second heat dissipation channel is formed between two adjacent second diversion structures, the second heat dissipation channel is communicated with the injection air channel, and the plurality of second diversion structures and the plurality of first diversion structures are respectively located on two opposite sides of the injection air channel.

Optionally, the plurality of second diversion structures are opposite to the plurality of first diversion structures respectively, so that the opening of the first heat dissipation channel is opposite to the opening of the second heat dissipation channel.

Optionally, the first guide structure includes first guide section and second guide section, the second guide section with first guide section is close to the one end of penetrating the wind passageway is connected, the second guide section for first guide section orientation penetrating the wind export crooked.

Optionally, first diversion segments of the plurality of first diversion structures are arranged in parallel; and/or the extending direction of the first diversion section is vertical to the extending direction of the injection air channel.

Optionally, a plurality of second diversion structures are further arranged on the bearing plate, a second heat dissipation channel is formed between two adjacent second diversion structures, the second heat dissipation channel is communicated with the injection air channel, and the plurality of second diversion structures and the plurality of first diversion structures are respectively positioned on two opposite sides of the injection air channel; the second diversion structure comprises a third diversion section and a fourth diversion section, the fourth diversion section is connected with one end, close to the injection air channel, of the third diversion section, and the fourth diversion section bends towards the injection air outlet relative to the first diversion section.

Optionally, the second flow guiding section and the fourth flow guiding section are respectively located at two sides of the injection air channel, and the second flow guiding section and the fourth flow guiding section are opposite, so that an opening of the first heat dissipation channel is opposite to an opening of the second heat dissipation channel; and/or the first diversion section and the third diversion section are parallel and oppositely arranged.

Optionally, the flow area of the jet air channel along the extension direction of the jet air channel is gradually increased and then gradually reduced.

Optionally, the plurality of first diversion structures are arranged at intervals along the extending direction of the air injection channel, and one ends of the plurality of first diversion structures, which are far away from the air injection channel, are aligned; along the extending direction of the injection air channel, the lengths of the plurality of first diversion structures are gradually increased and then gradually reduced.

Optionally, a plurality of first water conservancy diversion structure is followed draw the direction interval setting of penetrating the wind passageway, and a plurality of second water conservancy diversion structure is followed draw the direction interval setting of penetrating the wind passageway, along draw the direction of penetrating the wind passageway, first water conservancy diversion structure and adjacent distance between the second water conservancy diversion structure reduces gradually earlier and then increases gradually.

Optionally, a wind shield is arranged on the first side of the bearing plate, and the injection wind outlet is formed in the wind shield; the plurality of first diversion structures are arranged between the wind shield and the first fan at intervals along the extending direction of the injection wind channel; and/or at least one part of the plurality of first diversion structures is perpendicular to the extending direction of the injection air channel.

Optionally, the first fan further has a first fan air inlet, and the first fan air inlet and the first fan air outlet are disposed along an extending direction of the air injection channel.

Optionally, the heat dissipating device further includes a second fan, the second fan has a second fan air inlet and a second fan air outlet, the second fan air inlet is communicated with the air injection channel, and the first fan air outlet is opposite to the second fan air inlet.

Optionally, the second fan is arranged on the first side of the bearing plate, and the air inlet of the second fan and the air outlet of the second fan are arranged along the extending direction of the air injection channel; and/or the second fan is provided with a plurality of second fan air outlets which are distributed at intervals.

In a second aspect, embodiments of the present application provide a charger.

The charger provided by the embodiment of the application comprises any one of the heat dissipation devices provided by the embodiment of the application.

The above-mentioned at least one technical scheme that this application embodiment adopted can reach following beneficial effect:

in the embodiment of the application, the first fan air outlet is arranged opposite to the injection air outlet, so that the air flow blown out from the first fan air outlet can be blown out from the injection air outlet more rapidly, and the injection air flow can be formed in the injection air channel. Because the flow velocity of the jet air flow is higher than the flow velocity of the gas of the first heat dissipation channel, the jet air flow can form a low-pressure area in the jet air channel. And then the air of the first heat dissipation channel can be spontaneously supplemented to the injection air channel under the action of atmospheric pressure. Therefore, the air flow of the cooling air conveyed to the heat dissipating device can be improved, so that the heat dissipating efficiency of the heat dissipating device is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the related art, the drawings that are required to be used in the embodiments or the related technical descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.

Fig. 1 is a schematic diagram of a heat dissipating device according to an embodiment of the present disclosure;

fig. 2 is a schematic diagram of a heat dissipating device and a member to be heat-dissipated according to an embodiment of the present application;

FIG. 3 is an enlarged schematic view of a portion of the area A in FIG. 2;

FIG. 4 is a schematic view of an airflow path of the heat sink shown in FIG. 1;

FIG. 5 is a schematic view of another airflow channel provided in an embodiment of the present application;

fig. 6 is a schematic diagram of another heat dissipating device according to an embodiment of the present disclosure;

FIG. 7 is a schematic view of an airflow path of the heat sink shown in FIG. 6;

fig. 8 is a schematic diagram of another heat dissipating device according to an embodiment of the present application.

Reference numerals illustrate:

100-a heat dissipation device; 110-a carrier plate; 111-a first side of the carrier plate; 112-an injection air outlet; 113-a second side of the carrier plate; 114-an injection air channel; 1141-a third end; 1142-middle; 1143-a fourth end; 115-wind deflector; 120-a first flow directing structure; 121-a first heat dissipation channel; 1211-a first end; 1212-a second end; 122-a first deflector segment; 123-a second flow guiding section; 130-a first fan; 131-a first fan air outlet; 132-a first fan air inlet; 133-a first fan housing; 140-a second flow directing structure; 141-a second heat dissipation channel; 142-a third flow guiding section; 143-a fourth flow guiding section; 150-a second fan; 151-a second fan air inlet; 152-a second fan outlet; 153-a second fan housing; 160-a first magnetic member; 200-a piece to be cooled; 210-a second magnetic member.

Detailed Description

For the purposes, technical solutions and advantages of the present application, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

Furthermore, although terms used in the present application are selected from publicly known and commonly used terms, some terms mentioned in the specification of the present application may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein.

Furthermore, it is required that the present application be understood, not simply by the actual terms used but by the meaning of each term lying within.

The following describes in detail the technical solutions provided by the embodiments of the present application with reference to the accompanying drawings.

The embodiment of the application provides a heat dissipation device. Referring to fig. 1 to 8, a heat dissipating device 100 provided in an embodiment of the present application may include: the bearing plate 110, the first flow guiding structure 120 and the first fan 130.

The first guiding structures 120 are disposed on the carrier plate 110, and a first heat dissipation channel 121 is formed between two adjacent first guiding structures 120. The first side 111 of the carrier plate 110 is provided with an ejector air outlet 112.

The first fan 130 has a first fan outlet 131. The first fan outlet 131 is disposed on the second side 113 of the carrier plate 110. The second side 113 of the carrying plate 110 is opposite to the first side 111 of the carrying plate 110, and the first fan air outlet 131 is opposite to the air ejection outlet 112, so as to form an air ejection channel 114 on the carrying plate 110. The first heat radiation passage 121 communicates with the induced air passage 114.

Referring to fig. 1, in the embodiment of the present application, the first fan air outlet 131 is disposed opposite to the air injection outlet 112, so that the air flow blown out from the first fan air outlet 131 can be blown out from the air injection outlet 112 more quickly, so that the air injection flow can be formed in the air injection channel 114. The opening of the first fan air outlet 131 is opposite to the opening of the injection air outlet 112 and is communicated with the injection air channel 114, so that the opening direction of the first fan air outlet 131 and the opening direction of the injection air outlet 112 are reversely arranged, and the injection air is facilitated to be blown out from the injection air outlet 112 rapidly.

The first fan 130 may employ a centrifugal fan that provides high-speed induced air flow.

Since the flow rate of the induced draft is higher than the flow rate of the gas of the first heat dissipation path 121, the induced draft forms a low pressure region in the induced draft path 114. And thus the air of the first heat dissipation passage 121 is spontaneously supplemented to the air injection passage 114 by the atmospheric pressure. In this way, the flow rate of the cooling gas (air) supplied to the heat sink 100 can be increased, so as to achieve the effect of increasing the heat dissipation efficiency of the heat sink 100.

For example, in the case that the member to be cooled 200 is covered on the side of the first guiding structure 120 facing away from the carrier plate 110, as shown in fig. 2, the cooling gas (air) may flow against the outer surface of the member to be cooled 200, so that the flowing gas may be used to take away the heat of the member to be cooled 200, so as to cool the member to be cooled 200.

It should be noted that, for example, when the to-be-cooled member 200 is covered on a side of the first flow guiding structure 120 facing away from the carrier plate 110, the first flow guiding structure 120, and the to-be-cooled member 200 may jointly enclose the air injection passage 114 and the first cooling passage 121.

Furthermore, for example, in other embodiments of the present application, a side of the first flow guiding structure 120 facing away from the carrier plate 110 may be provided with a heat conducting plate, and the heat dissipation element 200 may be attached to the heat conducting plate. In this way, the heat of the heat dissipation member 200 can be transferred to the heat conduction plate, and the heat conduction plate can be dissipated by the cooling gas. The cooling gas comprises air. In this way, the heat dissipation device 100 may be used to dissipate heat from the heat-conducting plate, so that the heat dissipation device 200 attached to the heat-conducting plate may be indirectly used to dissipate heat.

In order to enable those skilled in the art to better practice the solutions provided by the embodiments of the present application, more detailed solutions are provided below for reference to those skilled in the art.

Referring to fig. 1, in the embodiment of the present application, a plurality of first heat dissipation channels 121 are formed by a plurality of first flow guiding structures 120, the plurality of first flow guiding structures 120 are all located on the same side of the air injecting channel 114, and the plurality of first heat dissipation channels 121 are all communicated with the air injecting channel 114.

For example, referring to fig. 1, the plurality of first diversion structures 120 are all located at the left side of the air injection channel 114, and the first heat dissipation channels 121 formed by the first diversion structures 120 may be respectively communicated with the air injection channel 114. In this way, the air flow blown out from the first fan air outlet 131 may form an induced air flow in the induced air channel 114, so that the induced air flow may make the air of the first heat dissipation channel 121 spontaneously supplement to the induced air channel 114 under the action of the atmospheric pressure. In this way, the flow rate of the cooling gas (air) supplied to the heat sink 100 can be increased, so as to achieve the effect of increasing the heat dissipation efficiency of the heat sink 100.

Referring to fig. 1, in an embodiment of the present application, the first flow directing structure 120 may include a first flow directing section 122 and a second flow directing section 123. The second guiding section 123 is connected to one end of the first guiding section 122 near the air injecting channel 114, and the second guiding section 123 is bent towards the air injecting outlet 112 relative to the first guiding section 122. This may cause the air outlet of the first heat dissipation channel 121 to bend toward the air ejection outlet 112, so that the air of the first heat dissipation channel 121 may be better delivered to the air ejection channel 114, and thus be discharged through the air ejection outlet 112. And thus the heat dissipation effect of the heat dissipation device 100 can be improved.

Referring to fig. 1, in an embodiment of the present application, first flow guiding segments 122 of a plurality of first flow guiding structures 120 are arranged in parallel; and/or, the extending direction of the first diversion section 122 is perpendicular to the extending direction of the injection wind channel 114.

In other words, in an embodiment of the present application, the first guiding segments 122 are disposed parallel to each other. In yet another embodiment of the present application, the direction of extension of the first inducer 122 is perpendicular to the direction of extension of the induced draft channel 114. In yet another embodiment of the present application, each of the first guiding segments 122 is parallel to each other, and an extending direction of each of the first guiding segments 122 is perpendicular to an extending direction of the air injecting channel 114. In this way, the air in the first heat dissipation channel 121 can be better delivered to the air injection channel 114, so that the air is discharged through the air injection outlet 112, so as to further improve the heat dissipation effect of the heat dissipation device 100.

Referring to fig. 5, in the embodiment of the present application, the first heat dissipation channel 121 gradually decreases in flow area in a direction toward the induced-air channel 114. In other words, if the end of the first heat dissipation channel 121 away from the air injection channel 114 is the first end 1211, the end of the first heat dissipation channel 121 close to the air injection channel 114 is the second end 1212, and the flow area of the first heat dissipation channel 121 from the first end 1211 to the second end 1212 is gradually reduced. In this way, a low-pressure area can be formed at a position of the first heat dissipation channel 121 near the air injection channel 114, so that the air of the first heat dissipation channel 121 spontaneously flows from the first end 1211 to the second end 1212, and the air of the first heat dissipation channel 121 can be better supplemented to the air injection channel 114, so as to further improve the heat dissipation effect of the heat dissipation device 100.

In the embodiments of the present application, the flow area of the flow channel may refer to the area of the cross section of the inner wall of the flow channel along the flow direction of the fluid, which will not be explained in detail later.

Referring to fig. 1, in the embodiment of the present application, a plurality of second guiding structures 140 are further disposed on the carrier plate 110, and a second heat dissipation channel 141 is formed between two adjacent second guiding structures 140. The second heat dissipation channel 141 is communicated with the air injection channel 114, and the plurality of second diversion structures 140 and the plurality of first diversion structures 120 are respectively located at two opposite sides of the air injection channel 114.

Illustratively, referring to fig. 1 and 4, the first flow guiding structures 120 are all located on the left side of the induced-draft air channel 114, and the second flow guiding structures 140 are all located on the right side of the induced-draft air channel 114. The first diversion structure 120 forms a plurality of first heat dissipation channels 121 on the left side of the air injection channel 114, and the second diversion structure 140 forms a plurality of second heat dissipation channels 141 on the right side of the air injection channel 114. In this way, the air flow blown out from the first fan air outlet 131 may form an injection air flow in the injection air channel 114, so that the air in the heat dissipation channels on the left and right sides may be spontaneously supplemented to the injection air channel 114 under the action of the atmospheric pressure. In this way, the flow rate of the cooling gas (air) delivered to the heat sink 100 can be further increased, so as to achieve the effect of increasing the heat dissipation efficiency of the heat sink 100.

Referring to fig. 1 and 4, in the embodiment of the present application, the plurality of second flow guiding structures 140 are respectively opposite to the plurality of first flow guiding structures 120, such that the opening of the first heat dissipation channel 121 is opposite to the opening of the second heat dissipation channel 141. In this way, the air flows at two sides of the air injection channel 114 are uniform, and the heat dissipation effect of the heat dissipation device 100 can be improved.

Referring to fig. 1, in an embodiment of the present application, the second flow guiding structure 140 may include a third flow guiding section 142 and a fourth flow guiding section 143. The fourth flow guiding section 143 is connected to one end of the third flow guiding section 142 close to the jet wind channel 114, and the fourth flow guiding section 143 is bent towards the jet wind outlet 112 relative to the first flow guiding section 122.

The second flow guiding section 123 and the fourth flow guiding section 143 are respectively positioned at two sides of the injection air channel 114, and the second flow guiding section 123 and the fourth flow guiding section 143 are opposite, so that the opening of the first heat dissipation channel 121 is opposite to the opening of the second heat dissipation channel 141; and/or the first and third

flow guiding segments

122, 142 are disposed parallel and opposite.

It should be noted that the second flow guiding structure 140 may be disposed with reference to the first flow guiding structure 120, and for brevity, a specific configuration of the second flow guiding structure 140 is not further described herein.

Referring to fig. 6 and 7, in the embodiment of the present application, the flow area of the induced draft air channel 114 along its own extension is gradually increased and then gradually decreased.

In other words, in connection with fig. 7, the air injection channel 114 may have a third end 1141, an intermediate portion 1142, and a fourth end 1143 sequentially distributed along its own extending direction. It should be noted that the middle portion 1142 may be located anywhere between the third end portion 1141 and the fourth end portion 1143, and the embodiment of the present application does not limit that the middle portion 1142 is located exactly at the center of the third end portion 1141 and the fourth end portion 1143.

In an embodiment of the present application, the flow area of the portion of the air injection channel 114 from the third end 1141 to the middle portion 1142 is gradually reduced, and the flow area of the portion of the air injection channel 114 from the middle portion 1142 to the fourth end 1143 is gradually increased.

In this way, the gas sent from the third end 1141 to the middle portion 1142 increases the flow rate due to the decrease of the flow area, and the pumping action between the third end 1141 and the middle portion 1142 can be enhanced. The gas transferred from the middle portion 1142 to the fourth portion 1143 is unlikely to have a squeezing effect due to an increase in flow area, so that the gas is advantageously overflowed from between the middle portion 1142 and the fourth portion 1143.

Alternatively, in the embodiment of the present application, the middle portion 1142 may be disposed opposite to the heat source portion of the heat sink 200. For example, if the portion of the heat sink 200 where the battery is disposed is a heat source portion, the intermediate portion 1142 may be opposite to the portion of the heat sink 200 where the battery is disposed.

In the following, a more detailed solution is provided in which the flow area of the ejector air channel 114 along its own extension is gradually increased and then gradually decreased.

Referring to fig. 6, in the embodiment of the present application, a plurality of first diversion structures 120 are disposed at intervals along the extending direction of the air injection channel 114, and one ends of the plurality of first diversion structures 120, which are far away from the air injection channel 114, are aligned. Along the extending direction of the air injecting channel 114, the lengths of the first diversion structures 120 gradually increase and then gradually decrease. In this way, the flow area of the air injection passage 114 along its own extension direction can be gradually increased and then gradually decreased.

Referring to fig. 6, in the embodiment of the present application, in the case that the carrier plate 110 is provided with a plurality of second diversion structures 140, the plurality of first diversion structures 120 are disposed at intervals along the extending direction of the air injecting channel 114, and the plurality of second diversion structures 140 are disposed at intervals along the extending direction of the air injecting channel 114. Along the extending direction of the air injecting channel 114, the distance between the first diversion structure 120 and the adjacent second diversion structure 140 is gradually reduced and then gradually increased. In this way, the flow area of the air injection passage 114 along its own extension direction can be gradually increased and then gradually decreased.

In the embodiment of the present application, the first side 111 of the bearing plate 110 is provided with a wind guard 115, and the wind guard 115 is provided with an injection wind outlet 112.

The plurality of first diversion structures 120 are arranged between the wind shield 115 and the first fan 130 at intervals along the extending direction of the injection air channel 114; and/or, at least a portion of the plurality of first flow guiding structures 120 is perpendicular to the extending direction of the induced-draft air channel 114.

In other words, in an embodiment of the present application, the plurality of first diversion structures 120 are disposed between the wind deflector 115 and the first fan 130 at intervals along the extending direction of the air injection passage 114. In yet another embodiment of the present application, at least a portion of the plurality of first flow guiding structures 120 is perpendicular to the direction of extension of the induced draft air channel 114. For example, where the first flow directing structure 120 includes a first flow directing segment 122, the first flow directing segment 122 may be perpendicular to the direction of extension of the induced draft air channel 114. In yet another embodiment of the present application, the plurality of first diversion structures 120 are disposed between the wind guard 115 and the first fan 130 along the extending direction of the air injecting channel 114 at intervals, and at least a portion of the plurality of first diversion structures 120 is perpendicular to the extending direction of the air injecting channel 114. Thus, the heat dissipation effect of the heat dissipation device 100 can be improved.

In the embodiment of the present application, the first fan 130 further has a first fan air inlet 132, and the first fan air inlet 132 and the first fan air outlet 131 are disposed along the extending direction of the air injecting channel 114. In this way, the air outside the heat dissipating device 100 can be better conveyed into the air injecting channel 114 and exhausted through the air injecting channel 114.

Referring to fig. 8, the first fan 130 may exemplarily include a first fan housing 133 and a first fan. The first fan housing 133 has a first accommodating chamber in which the first fan is disposed. The first side of the first fan housing 133 is connected with the carrier plate 110, and the first fan air outlet 131 is provided on the first side of the first fan housing 133, and the first fan air inlet 132 is provided on the second side of the first fan housing 133. The second side of the first fan housing 133 is opposite to the first side of the first fan housing 133 such that the first fan inlet 132 is opposite to the first fan outlet 131.

Of course, for example, in connection with FIG. 8, in other embodiments of the present application, the first fan inlet 132 may be disposed obliquely upward and in communication with the jet wind inlet of the jet wind channel 114. The first fan outlet 131 may be disposed at both left and right sides of the first fan 130. In the embodiment of the present application, only the first fan 130 is required to be capable of extracting cooling gas from the outside of the heat dissipating device 100 through the first fan air inlet 132, and the specific setting position of the first fan air inlet 132 is not limited in the embodiment of the present application.

Referring to fig. 8, in an embodiment of the present application, the heat dissipating device may further include a second fan 150. The second fan 150 has a second fan inlet 151 and a second fan outlet 152. The second fan air inlet 151 communicates with the air injection passage 114, and the first fan air outlet 131 is opposite to the second fan air inlet 151. In this way, the second fan 150 may be used to pump the air injection passage 114, so that the air that absorbs heat in the air injection passage 114 may be better discharged from the heat dissipating device 100.

In the embodiment of the present application, the second fan 150 is disposed on the first side 111 of the carrier plate 110, and the second fan air inlet 151 and the second fan air outlet 152 are disposed along the extending direction of the air injection channel 114; and/or, the second fan 150 has a plurality of second fan outlets 152, and the plurality of second fan outlets 152 are distributed at intervals. In this way, the second fan 150 may be used to better remove the heat-absorbed air from the air duct 114 from the heat sink 100.

Illustratively, in an embodiment of the present application, the second blower 150 may include a second blower housing 153 and a second fan. The second fan housing 153 has a second accommodating cavity, the second fan is disposed in the second accommodating cavity, a first side of the second fan housing 153 is connected with the bearing plate 110 and protrudes out of the surface of the bearing plate 110 to form a wind shielding structure, and the first side of the second fan housing 153 is provided with a second fan air inlet 151.

The first side of the second fan housing 153 is recessed away from the first fan 130 to form a recess. The second fan air inlet 151 is formed in a surface of the concave portion, which is far away from the first fan 130. The recess forms an ejector outlet 112 towards the opening of the first fan 130. The air injection outlet 112 is opposite to and communicated with the second fan air inlet 151, so that the second fan air inlet 151 is communicated with the air injection channel 114.

In some embodiments, the first side of the second fan housing 153 is connected to the carrier plate 110 and protrudes from the surface of the carrier plate 110 to form a wind shielding structure, the first side of the second fan housing 153 is directly provided with the air injection outlet 112, and the air injection outlet 112 is multiplexed into the second fan air inlet 151, so that the second fan air inlet 151 is communicated with the air injection channel 114.

It can be appreciated that a wind deflector 115 may be additionally disposed between the bearing plate 110 and the second fan housing 153, and the air outlet 112 is disposed on the wind deflector 115, so that the second fan air inlet 151 and the air outlet 112 are independently and relatively communicated, and the second fan air inlet 151 is communicated with the air channel 114.

A second fan outlet 152 is formed in a second side of the second fan housing 153, and the second side of the second fan housing 153 is opposite to the first side of the second fan housing 153, so that the first fan inlet 132 is opposite to the first fan outlet 131.

Illustratively, in an embodiment of the present application, the first blower housing 133, the second blower housing 153, and the carrier plate 110 may be integrally connected. In this way, the integrity of the heat sink 100 may be improved.

In an embodiment of the present application, an end of the first flow guiding structure 120 facing away from the carrier plate 110 may be a flexible material portion. The heat dissipation element 200 may be attached to a side of the first guiding structure 120 facing away from the carrier plate 110. In this way, the heat dissipation part 200 may be attached to the flexible material portion of the first air guiding structure 120, and the heat dissipation part 200 may be connected with the flexible material portion of the first air guiding structure 120 in a sealing manner by using the flexible material portion to generate elastic deformation, so as to improve the sealing effect of the first heat dissipation channel 121 and the air injection channel 114.

Illustratively, in an embodiment of the present application, the first flow guiding structure 120 may be made of a flexible material such as silicone rubber, or the like. For example, the first flow guiding structure 120 may be integrally formed on the carrier plate 110 by injection molding. For example, in an embodiment of the present application, the first guiding structure 120 may be made of the same material as the carrier plate 110, and the first guiding structure 120 may be integrally formed with the carrier plate 110; further, a flexible material layer may be disposed on a side of the first flow guiding structure 120 facing away from the carrier plate 110 to form a flexible material portion. In addition, in the embodiment of the present application, the first guiding structure 120 may be a separate structure from the carrier plate 110, for example, the first guiding structure 120 may be adhered to the carrier plate 110 by using an adhesive.

In addition, in the case that the heat dissipating device 100 further includes the second flow guiding structure 140, the second flow guiding structure 140 may be disposed with reference to the first flow guiding structure 120, and the specific configuration of the second flow guiding structure 140 will not be further described herein.

Referring to fig. 2 and 3, in the embodiment of the present application, the heat dissipating device 100 may further include a first magnetic member 160, and the heat dissipating member 200 is provided with a second magnetic member 210. In the case that the heat dissipation element 200 is disposed in the heat dissipation element accommodating area of the heat dissipation device 100, the first magnetic element 160 is magnetically attached to the second magnetic element 210. In this way, the fitting tightness degree of the heat dissipation element 200 to the first diversion structure 120 and the second diversion structure 140 can be improved.

Of course, in other embodiments of the present application, the heat dissipation device 200 may also be closely attached to the first flow guiding structure 120 and the second flow guiding structure 140 under the action of gravity. Therefore, in the case that the heat dissipation member 200 can be closely attached to the first guiding structure 120 and the second guiding structure 140 under the action of the gravity of the heat dissipation member 200, the heat dissipation device 100 may not be provided with the first magnetic member 160, and the heat dissipation member 200 may not be provided with the second magnetic member 210.

In addition, in other embodiments of the present application, other manners in the related art may be adopted to make the to-be-cooled member 200 closely fit with the first flow guiding structure 120 and the second flow guiding structure 140, respectively. For example, the heat dissipating device 100 may be provided with a clamping structure, and the heat dissipating member 200 may be tightly attached to the first and second guiding

structures

120 and 140 by clamping the heat dissipating member 200 to the clamping structure.

The embodiment of the application provides a charger. The charger provided in the embodiments of the present application may include any one of the heat dissipation devices 100 provided in the embodiments of the present application.

Further, the charger provided by the embodiment of the application may further include a power transmission coil. Illustratively, a power transmitting coil may be built in the carrier plate 110, and the member to be heat-dissipated 200 is provided with a power receiving coil, and the power transmitting coil is used for wireless charging connection with the power receiving coil. In connection with fig. 2, in the embodiment of the present application, the power transmitting coil may be disposed at a position of the carrier plate 110 opposite to the power receiving coil in the member to be heat-dissipated 200, so that the power transmitting coil can be connected with the power receiving coil through wireless charging.

In the embodiment of the present application, in order to maintain a better power transmission efficiency between the power transmission coil and the power receiving coil, in the case that the heat dissipating device 100 includes the first flow guiding structure 120 and the second flow guiding structure 140, the height dimension of the first flow guiding structure 120 and the second flow guiding structure 140 may be 1 to 5 millimeters. Of course, in the case where the electric power transmission efficiency between the power transmitting coil and the power receiving coil is not high, the height dimensions of the first flow guiding structure 120 and the second flow guiding structure 140 may be appropriately increased. In the case where the electric power transmission efficiency between the power transmitting coil and the power receiving coil is high, the height dimensions of the first and second

flow guiding structures

120 and 140 may be appropriately reduced.

In addition, the power transmission efficiency between the power transmission coil and the power receiving coil can be improved by increasing the areas of the corresponding regions of the power transmission coil and the power receiving coil. Therefore, the height dimensions of the first flow guiding structure 120 and the second flow guiding structure 140 are not limited to 1 to 5 mm, and those skilled in the art can reasonably adjust the height dimensions of the first flow guiding structure 120 and the second flow guiding structure 140 according to practical requirements.

For example, in the embodiment of the present application, the heat dissipation device 200 may be an electronic device such as a mobile phone, a tablet computer, a notebook computer, an electronic watch, an electronic bracelet, and the like. In the case where the heat dissipating device 100 is provided with a power transmitting coil, the member to be heat-dissipated 200 may be an electronic device such as a mobile phone, a tablet computer, a notebook computer, an electronic watch, or an electronic wristband provided with a power receiving coil. The power transmitting coil and the power receiving coil can be provided by those skilled in the art with reference to the wireless charging scheme in the related art, and thus, the operation principle and specific construction of the power transmitting coil and the power receiving coil will not be explained here.

In the embodiment of the present application, the heat dissipating device 100 of the charger may further include a base, and the base may be connected to the carrier plate 110. The carrier plate 110 may be supported on the base. Optionally, a control circuit may be provided in the base. The control circuit may be connected to an external power supply. Of course, in other embodiments of the present application, other schemes in the related art may be used to supply power to the heat sink 100 or the charger, and a power supply scheme for supplying power to the heat sink 100 or the charger will not be described.

Further, in other embodiments of the present application, the power receiving coil of the member to be cooled 200 may be used to transmit electric power to the cooling device 100 via the power transmitting coil, so that the first fan 130 operates. In this way, when the electric energy of the heat dissipation part 200 is sufficient and the charger is powered off, the heat dissipation part 200 can be utilized to supply power to the charger, so that the charger can dissipate heat of the heat dissipation part 200. In this way, for example, in the case of power outage and in the case that the user views the high-definition movie by using the mobile phone, the heat generated by the mobile phone is large, the mobile phone can be used to supply power to the charger, so that the charger can dissipate heat of the heat dissipation part 200.

It should be noted that, in the embodiment of the present application, the charger may also include a charging plug, and the charging plug may be connected to the charging interface of the heat dissipation device 200. For example, in the case where the to-be-cooled member 200 is a mobile phone, the mobile phone may be provided with a Type-C charging interface, and the charger may be provided with a Type-C charging plug. The mode that can be connected through Type-C charging plug and Type-C interface electricity that charges utilizes the charger to charge for the cell-phone. Meanwhile, in the process of charging, the heat dissipation device 100 of the charger may be used to dissipate heat of the heat dissipation member 200.

It can be appreciated that, during the process of charging the heat dissipation device 200, the temperature of the heat dissipation device 200 may increase; the higher the charging power of the heat sink 200, the higher the temperature of the heat sink 200. Therefore, in order to avoid the temperature of the heat sink 200 being too high, in general, the charging power of the heat sink 200 needs to be limited. By adopting the scheme provided by the embodiment of the application, the charging power of the member to be cooled 200 can be properly adjusted by utilizing the heat dissipating device 100 to dissipate heat of the member to be cooled 200.

It should be further noted that, in the embodiment of the present application, the charger may mainly include a charging plug, so that the electronic device may be charged by plugging the charging plug into a charging interface of the electronic device. Alternatively, the charger may include a power transmitting coil mainly, so that the electronic device may be charged by wireless charging. Alternatively, the charger may include a charging plug and a power transmitting coil. Of course, as technology advances, other charging devices will appear in the future, and thus, in embodiments of the present application, the charger may also include other charging devices that will appear in the future.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the embodiments of the application, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A heat sink, comprising:

the bearing plate (110), a plurality of first diversion structures (120) are arranged on the bearing plate (110), and a first heat dissipation channel (121) is formed between two adjacent first diversion structures (120); the first side (111) of the bearing plate (110) is provided with an injection air outlet (112);

a first fan (130) having a first fan air outlet (131), the first fan air outlet (131) being provided on a second side (113) of the carrier plate (110), the second side (113) of the carrier plate (110) being opposite to the first side (111) of the carrier plate (110), the first fan air outlet (131) being opposite to the induced air outlet (112) to form an induced air channel (114) on the carrier plate (110);

the first heat dissipation channel (121) is communicated with the injection air channel (114).

2. The heat dissipation device according to claim 1, wherein the plurality of first diversion structures (120) form a plurality of first heat dissipation channels (121), the plurality of first diversion structures (120) are all located on the same side of the air injection channel (114), and the plurality of first heat dissipation channels (121) are all communicated with the air injection channel (114).

3. The heat dissipation device according to claim 1, wherein the carrier plate (110) is further provided with a plurality of second diversion structures (140), a second heat dissipation channel (141) is formed between two adjacent second diversion structures (140), the second heat dissipation channel (141) is communicated with the air injection channel (114), and the plurality of second diversion structures (140) and the plurality of first diversion structures (120) are respectively located at two opposite sides of the air injection channel (114).

4. A heat sink according to claim 3, characterized in that a plurality of the second flow guiding structures (140) are respectively opposite to a plurality of the first flow guiding structures (120) such that the opening of the first heat dissipation channel (121) is opposite to the opening of the second heat dissipation channel (141).

5. The heat dissipating device according to claims 1 to, wherein the first guiding structure (120) comprises a first guiding section (122) and a second guiding section (123), the second guiding section (123) being connected to an end of the first guiding section (122) close to the induced air channel (114), the second guiding section (123) being curved towards the induced air outlet (112) with respect to the first guiding section (122).

6. The heat dissipating device of claim 5, wherein first deflector segments (122) of the plurality of first deflector structures (120) are disposed in parallel; and/or the number of the groups of groups,

the extending direction of the first diversion section (122) is perpendicular to the extending direction of the injection air channel (114).

7. The heat dissipation device according to claim 5, wherein the carrier plate (110) is further provided with a plurality of second diversion structures (140), a second heat dissipation channel (141) is formed between two adjacent second diversion structures (140), the second heat dissipation channel (141) is communicated with the air injection channel (114), and the plurality of second diversion structures (140) and the plurality of first diversion structures (120) are respectively located at two opposite sides of the air injection channel (114);

the second diversion structure (140) comprises a third diversion section (142) and a fourth diversion section (143), the fourth diversion section (143) is connected with one end, close to the injection wind channel (114), of the third diversion section (142), and the fourth diversion section (143) is bent towards the injection wind outlet (112) relative to the first diversion section (122).

8. The heat dissipating device according to claim 7, wherein the second flow guiding section (123) and the fourth flow guiding section (143) are located at both sides of the induced air channel (114), respectively, the second flow guiding section (123) and the fourth flow guiding section (143) being opposite such that the opening of the first heat dissipating channel (121) is opposite to the opening of the second heat dissipating channel (141);

and/or the number of the groups of groups,

the first guide section (122) and the third guide section (142) are arranged in parallel and opposite to each other.

9. A heat sink according to claim 1, wherein the flow area of the ejector air channel (114) in its own direction of extension increases and then decreases.

10. The heat dissipation device according to claim 1, wherein a plurality of the first diversion structures (120) are arranged at intervals along the extending direction of the air injection channel (114), and one ends of the plurality of first diversion structures (120) far away from the air injection channel (114) are aligned;

along the extending direction of the injection air channel (114), the lengths of the first diversion structures (120) are gradually increased and then gradually reduced.

11. The heat dissipating device of claim 3, wherein the first plurality of flow guiding structures (120) are disposed at intervals along the direction of extension of the air injection passage (114), and the second plurality of flow guiding structures (140) are disposed at intervals along the direction of extension of the air injection passage (114),

along the extending direction of the injection air channel (114), the distance between the first flow guiding structure (120) and the adjacent second flow guiding structure (140) is gradually reduced and then gradually increased.

12. The heat dissipation device according to claim 1, wherein a wind deflector (115) is arranged on the first side (111) of the carrier plate (110), and the ejector air outlet (112) is arranged on the wind deflector (115);

the plurality of first diversion structures (120) are arranged between the wind shield (115) and the first fan (130) at intervals along the extending direction of the injection air channel (114); and/or the number of the groups of groups,

at least a portion of the plurality of first flow directing structures (120) is perpendicular to an extension direction of the jet air passage (114).

13. The heat dissipating device according to claim 1, wherein the first fan (130) further has a first fan air inlet (132), and the first fan air inlet (132) and the first fan air outlet (131) are disposed along an extension direction of the air injection passage (114).

14. The heat sink of claim 1, further comprising a second fan (150), the second fan (150) having a second fan inlet (151) and a second fan outlet (152), the second fan inlet (151) being in communication with the induced air passage (114), and the first fan outlet (131) being opposite the second fan inlet (151).

15. The heat dissipating device according to claim 14, wherein the second fan (150) is disposed on a first side (111) of the carrier plate (110), and the second fan air inlet (151) and the second fan air outlet (152) are disposed along an extension direction of the air injection channel (114); and/or the number of the groups of groups,

the second fan (150) is provided with a plurality of second fan air outlets (152), and the second fan air outlets (152) are distributed at intervals.

16. A charger, comprising: the heat sink of any one of claims 1 to 15.