CN219437442U - Radiating assembly and wireless charging using same - Google Patents

Abstract

The embodiment of the utility model discloses a heat dissipation assembly and wireless charging using the same, wherein the heat dissipation assembly comprises a temperature adjusting piece, a radiator, a heat storage piece and a ventilation assembly, one end of the temperature adjusting piece is connected with a piece to be cooled, the other end of the temperature adjusting piece is connected with the radiator, the heat storage piece is connected with the radiator, and the ventilation assembly is arranged corresponding to the radiator. According to the embodiment of the utility model, through the combination of the temperature adjusting piece, the radiator and the ventilation assembly, the heat storage piece is matched to absorb heat to the radiator so as to achieve a better heat dissipation effect, so that heat generated during wireless charging is reduced, and the charging efficiency of wireless charging is greatly improved.

Description

Radiating assembly and wireless charging using same

Technical Field

The utility model relates to the technical field of heat dissipation, in particular to a heat dissipation assembly and a wireless charger using the same.

Background

The mobile phone existing in the current market is charged wirelessly, whether in original or by a third party, and the mobile phone can be charged by using the mobile phone, and the charging time can be at least three hours. The reason is that a large amount of heat is emitted in the working process of the wireless charging, so that the wireless charging and the temperature of the mobile phone are increased, the charging power of the mobile phone is reduced, and the charging speed of the mobile phone is further influenced; if the heat dissipation treatment is not performed, wireless charging failure is also easily caused after long-term use. The existing wireless heat dissipation measures of filling in the market generally adopt a radiator to dissipate heat in combination with a fan, but the radiator is higher and higher in heat quantity due to continuous work of wireless filling for a long time, and the radiator and the fan cannot increase in volume due to space limitation of a wireless charging shell, so that the fan cannot timely dissipate heat of the radiator, and the heat dissipation is slower during wireless charging work, so that the charging efficiency is affected.

Disclosure of Invention

The utility model aims to provide a heat radiation assembly and wireless charging using the same, and aims to solve the problem that the charging efficiency is low because a large amount of heat is generated during wireless charging work and the heat of a radiator cannot be radiated in time.

In order to solve the technical problems, the aim of the utility model is realized by the following technical scheme: the heat dissipation assembly comprises a temperature adjusting piece, a radiator, a heat storage piece and a ventilation assembly, wherein one end of the temperature adjusting piece is used for being connected with a piece to be cooled, the other end of the temperature adjusting piece is connected with the radiator, the heat storage piece is connected with the radiator, and the ventilation assembly is arranged corresponding to the radiator;

further, the heat storage part comprises a heat storage bottom plate, and the heat storage bottom plate is contacted with one end, far away from the temperature regulating part, of the radiator;

further, the radiator comprises a radiating bottom plate and a plurality of radiating fins extending towards the heat storage bottom plate, the other end of the temperature regulating piece is connected with the radiating bottom plate, and the heat storage bottom plate is contacted with one end, far away from the radiating bottom plate, of the plurality of radiating fins;

further, a heat dissipation channel is formed between two adjacent heat dissipation fins, and the heat dissipation channel is connected to the heat storage bottom plate;

further, the ventilation component is arranged at the side edge of the heat dissipation channel;

further, the heat storage piece further comprises heat storage side plates which are respectively connected to two opposite sides of the heat storage bottom plate, and the two heat storage side plates are respectively contacted with two side edges of the radiator;

further, the heat storage piece comprises a heat storage side plate, and the heat storage side plate is in contact with the side edge of the radiator;

further, the heat storage side plate is also in contact with the side edge of the temperature regulating piece;

further, the heat storage part is a phase change heat storage part;

the embodiment of the utility model also provides a wireless charging module, which comprises a shell, a to-be-cooled piece arranged in the shell and the cooling assembly, wherein the to-be-cooled piece is a wireless charging module.

The embodiment of the utility model provides a heat dissipation assembly and wireless charging using the same, wherein the heat dissipation assembly comprises a temperature adjusting piece, a radiator, a heat storage piece and a ventilation assembly, one end of the temperature adjusting piece is used for being connected with a piece to be cooled, the other end of the temperature adjusting piece is connected with the radiator, the heat storage piece is connected with the radiator, and the ventilation assembly is arranged corresponding to the radiator. According to the embodiment of the utility model, through the combination of the temperature adjusting piece, the radiator and the ventilation assembly, the heat storage piece is matched to absorb heat to the radiator so as to achieve a better heat dissipation effect, so that heat generated during wireless charging is reduced, and the charging efficiency of wireless charging is greatly improved.

Drawings

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

Fig. 1 is a block diagram of a heat dissipation assembly according to an embodiment of the present utility model when the heat dissipation assembly is applied to a member to be dissipated;

fig. 2 is an exploded view of a heat dissipating assembly according to an embodiment of the present utility model when the heat dissipating assembly is applied to a member to be cooled;

fig. 3 is a cross-sectional view of a heat dissipation assembly according to an embodiment of the present utility model when the heat dissipation assembly is applied to a member to be cooled;

FIG. 4 is an exploded view of a heat dissipating assembly according to an embodiment of the present utility model;

FIG. 5 is an exploded view of a wireless charger according to an embodiment of the present utility model;

FIG. 6 is a cross-sectional view of a wireless charger according to an embodiment of the present utility model;

FIG. 7 is a first block diagram of a housing according to an embodiment of the present utility model;

fig. 8 is a second structure diagram of a housing according to an embodiment of the present utility model.

The figure identifies the description:

10. a heat dissipation member;

20. a temperature adjusting member;

30. a heat sink; 31. a heat dissipation base plate; 32. a heat sink; 33. a heat dissipation channel;

40. a ventilation assembly; 41. an air inlet;

50. a heat storage member; 51. a heat storage bottom plate; 52. a heat storage side plate;

60. a housing; 61. a first air outlet; 62. a second air outlet; 63. a wind deflector; 631. a first side plate; 632. an annular side plate; 633. a second side plate; 634. a second extension plate; 635. a first extension plate; 64. a notch;

70. a circuit board.

Detailed Description

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

It should be understood that the terms "comprises" and "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

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

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

Referring to fig. 1 and 2, an embodiment of the present utility model provides a heat dissipating assembly, where the heat dissipating assembly includes a temperature adjusting member 20, a heat sink 30, a heat storage member 50, and a ventilation assembly 40, one end of the temperature adjusting member 20 is used for being connected to a member to be cooled 10, the other end of the temperature adjusting member 20 is connected to the heat sink 30, the heat storage member 50 is connected to the heat sink 30, and the ventilation assembly 40 is disposed corresponding to the heat sink 30.

In this embodiment, the heat dissipation assembly is disposed in the wireless charging device, so that the heat dissipation device 10 (the heat dissipation device 10 may be a wireless charging module or another module requiring heat dissipation) has a good heat dissipation effect, thereby improving the charging power of electronic devices such as a mobile phone. In the heat dissipation assembly, the temperature adjusting member 20 serves as a boundary, that is, after the temperature adjusting member 20 absorbs heat of the heat dissipation member 10, the absorbed heat is transferred to the heat sink 30 through the temperature adjusting member 20. The temperature adjusting member 20 is made of a TEC semiconductor material, which can be understood as a semiconductor refrigerator (Thermo Electric Cooler), which is made of a semiconductor material by using the peltier effect (a phenomenon that when a direct current passes through a couple composed of two semiconductor materials, one end absorbs heat and the other end releases heat). The temperature adjusting member 20 specifically works as follows: when current flows through the temperature adjusting member 20, heat generated by the current is transferred from one end of the temperature adjusting member 20 to the other end, and a cold end (near the member to be cooled 10) and a hot end (near the heat sink 30) are generated on the temperature adjusting member 20.

In addition, the heat storage part 50 can ensure that the heat of the radiator 30 is effectively absorbed, and the heat storage part 50 can play a good role in heat dissipation and sharing by matching with the wind source provided by the ventilation assembly 40; when the temperature of the radiator 30 reaches the melting point, the phase-change material can absorb the heat of the radiator 30, namely, the heat storage part 50 absorbs and stores part of the heat, and when the wireless charging stops working, the heat storage part 50 slowly releases the absorbed heat, so that the heat dissipation effect is achieved.

As shown in conjunction with fig. 3 and 4, in one embodiment, the heat storage member 50 includes a heat storage base plate 51, and the heat storage base plate 51 is in contact with an end of the heat sink 30 remote from the temperature adjustment member 20.

In the present embodiment, the purpose of the heat storage bottom plate 51 is to absorb the heat of the radiator 30, both the heat storage bottom plate 51 and the radiator 30 are disposed at the hot end of the temperature adjusting member 20, and the heat storage bottom plate 51 and the radiator 30 cooperate with each other to achieve a better heat dissipation effect.

In one embodiment, the heat sink 30 includes a heat dissipating base plate 31 and a plurality of heat dissipating fins 32 extending toward the heat accumulating base plate 51, the other end of the temperature adjusting member 20 is connected to the heat dissipating base plate 31, and the heat accumulating base plate 51 is in contact with one end of the plurality of heat dissipating fins 32 away from the heat dissipating base plate 31.

In the present embodiment, the heat dissipation base plate 31 is attached to the temperature adjusting member 20 and receives the heat transferred from the temperature adjusting member 20; after the heat is received by the heat dissipation base plate 31, the heat is dispersed and transferred to each heat dissipation fin 32; the heat storage bottom plate 51 is connected to the ends of the plurality of heat radiating fins 32, and is distant from one end of the heat radiating bottom plate 31.

In one embodiment, a heat dissipation channel 33 is formed between two adjacent heat dissipation fins 32, and the heat dissipation channel 33 is connected to the heat storage bottom plate 51.

In the present embodiment, the heat absorbed by the heat sink 32 is temporarily stored in the heat dissipation channel 33, and the heat dissipation channel 33 is dissipated by the air source generated by the ventilation assembly 40 by providing power to the ventilation assembly 40; the ventilation assembly 40 is opposite to the opening of the heat dissipation channel 33, so that the wind source is guaranteed to be blown into the heat dissipation channel 33 to the greatest extent, and the poor heat dissipation effect is avoided because the wind source is blocked by other components. The heat dissipation channel 33 is connected to the heat storage bottom plate 51, and the heat storage bottom plate 51 can absorb part of heat, so that the auxiliary ventilation assembly 40 dissipates heat.

In one embodiment, the ventilation assembly 40 is disposed at a side of the heat dissipation channel 33.

In the present embodiment, the ventilation assembly 40 is disposed relatively close to the side of the heat dissipation channel 33, so as to cool the heat dissipation channel 33 by using the wind source; of course, the ventilation assembly 40 may be disposed at other positions as appropriate, for example, one end of the radiator 30 may be disposed, that is, in a vertical relationship, which is not limited herein. Typically, the source of air provided by the ventilation assembly 40 is directed toward the radiator 30; however, when the power of the ventilation assembly 40 is large enough, the corresponding provided wind source is larger, so that the heat dissipation of the heat dissipation part 10 and the temperature adjustment part 20 can be performed together, the heat dissipation efficiency is increased, and the power adjustment of the ventilation assembly 40 can be specifically set according to the actual application situation, which is not limited herein.

In one embodiment, the heat storage member 50 further includes heat storage side plates 52 connected to opposite sides of the heat storage bottom plate 51, and the two heat storage side plates 52 are in contact with two sides of the heat sink 30.

In the present embodiment, the heat storage side plates 52 extend upward from both sides of the heat storage bottom plate 51, and the heat storage side plates 52 are attached to the outermost sides of the heat sink 30. It should be noted that it is also permissible that a single heat storage side plate 52 can absorb heat to the radiator 30.

In one embodiment, the heat storage member 50 includes a heat storage side plate 52, and the heat storage side plate 52 contacts a side of the heat sink 30.

In the present embodiment, the heat storage side plate 52 can absorb heat of the radiator 30 after contacting with the side edge of the radiator 30, and the radiator 30 can radiate heat through the heat storage side plate 52 in addition to the heat radiation through the heat storage bottom plate 51.

In an embodiment, the heat storage side plate is further in contact with a side edge of the temperature adjusting member.

In this embodiment, the actual situation may be combined, so that the heat dissipation effect may be improved, as shown in fig. 3, the heat storage side plate 52 may further extend upwards until touching the side of the temperature adjusting member 20; when the speed of the temperature adjusting member 20 transferring heat to the radiator 30 is too slow, heat is also present on the temperature adjusting member 20, and the temperature of the temperature adjusting member 20 is higher and higher over time, at this time, the heat dissipation work of the temperature adjusting member 20 can be well shared by the side edges of the heat storage side plates 52 contacting the temperature adjusting member 20, so as to avoid the damage of the temperature adjusting member 20 due to high temperature.

In one embodiment, the thermal storage 50 is a phase change thermal storage.

In this embodiment, the heat storage member 50 is made of a phase change heat absorbing film composed of a pure organic Phase Change Material (PCM) and a heat conduction enhancing material; the material has the advantages of high heat energy storage capacity, high heat conductivity, strong phase change circulation stability, high chemical inertness, more than 10000 times of circulation times, insulation, flame retardance, no toxicity and no corrosion.

In contrast, other organic phase-change materials can become liquid after phase change, flow everywhere and are difficult to use in electronic components, and the phase-change heat-absorbing film manufactured by using high-molecular phase-change plastic injection molding can well overcome the problem of liquid after phase change, namely, the film still has no fluidity after absorbing a large amount of heat after phase change; therefore, it can be directly used in an electronic component (such as the heat storage member 50 applied in the present embodiment) to play a role of heat absorption and temperature control.

As shown in fig. 5 and fig. 6, the embodiment of the utility model further provides a wireless charging device, which comprises a housing, a member to be cooled disposed in the housing, and the cooling assembly as described in the above embodiment, wherein the member to be cooled is a wireless charging module.

In an embodiment, a heat conducting area is disposed at a position of the housing 60 corresponding to the heat dissipation element 10, the heat conducting area is located on the upper surface of the housing 60, and the heat conducting area is made of PC-hv2500k; the material has the advantages that: the heat conductivity is good, and the injection molding can be realized. If the heat-conducting silicone grease is used, the heat-conducting silicone grease cannot be formed to be used as an appearance surface of the wireless charger, and the heat-conducting coefficient of the silica gel generally cannot meet the use requirement of the wireless charger. For the area outside the surface area where the handset of the housing 60 is placed, other materials may be used, such as materials that do not conflict with the PC-hv2500k material, without limitation.

As shown in fig. 7, a plurality of first air outlets 61 are formed in a side of the housing 60 adjacent to the heat storage member 50, and/or a plurality of second air outlets 62 are formed in an end of the housing 60 adjacent to the heat storage member 50. Specifically, the heat of the radiator 30 is released through the first air outlet 61 under the action of the ventilation assembly 40, and, of course, if the first air outlet 61 in actual situations does not meet the requirement of releasing the heat of the radiator 30, the second air outlet 62 may be disposed at one end of the housing 60 close to the radiator 30, that is, the heat may be released from the side of the housing 60, and the heat may also be released at the bottom of the housing 60. In the development of wireless charging, if the space is limited, the first air outlet 61 or the second air outlet 62 may be separately provided, and the heat dissipation of the heat sink 30 may be achieved.

As shown in fig. 8, the end of the housing 60 near the ventilation assembly 40 is wound with a wind deflector 63, and the wind deflector 63 is provided with a notch 64 facing the heat storage member 50. Specifically, the air source provided by the ventilation assembly 40 enters the heat dissipation channel 33, and the air source enters the heat dissipation channel 33 to absorb heat and then is converted into hot air to be discharged from the first air outlet 61 or the second air outlet 62; in addition, the ventilation assembly 40 is typically configured as a fan that can draw air from the wireless charging environment into the heat dissipation channel 33 for dissipation, and the wind deflector 63 is configured with a wind guiding direction that is provided to the ventilation assembly 40 toward the notch 64 of the heat storage member 50. It should be noted that, in this embodiment, the air blowing mode is adopted to perform heat dissipation, and the air exhausting mode may also be adopted to perform heat dissipation, that is, the ventilation assembly 40 is utilized to extract heat in the heat dissipation channel 33, so as to achieve the heat dissipation effect. Preferably, an air inlet 41 is formed at a position of the ventilation assembly 40 close to the shell 60, so that the air can be conveniently absorbed by wireless outside air filling, and a circular hole with a large diameter is formed in the embodiment, so that the air suction effect is greatly improved; of course, the air inlet 41 with small diameter can be replaced, which is also convenient for the ventilation assembly 40 to absorb the outside air; for the air inlets 41 with small diameters, the fingers can be effectively prevented from touching the ventilation assembly 40 by mistake or foreign matters can be prevented from entering the ventilation assembly 40. The ventilation assembly 40 is further provided with a circuit board 70 (PCB board), and the circuit board 70 can control the power output of the ventilation assembly 40. The ventilation assembly 40 has the air flow in a straight direction, so that the air quantity efficiency is maximized, and the heat dissipation efficiency is ensured to be maximized; the wind deflector 63 is designed as an "R" to keep the air output of the ventilation assembly 40 maximized for fluid simulation.

Further, the wind deflector 63 includes a first side plate 631, an annular side plate 632, and a second side plate 633 which are sequentially connected, the first side plate 631 and one end of the annular side plate 632 are in smooth transition, and the connection between the other end of the annular side plate 632 and the second side plate 633 is folded towards the ventilation assembly 40. The first side plate 631, the annular side plate 632 and the second side plate 633 form a volute structure, i.e. an "R" type design. It should be noted that the volute is not a closed structure, and the notch 64 at the opposite side of the first side plate 631 from the second side plate 633 is used to introduce the air source of the ventilation assembly 40 to the heat dissipation channel 33.

Further, the first and second side plates 631 and 633 extend out of the first and second extension plates 635 and 634 toward both outer sides of the heat storage member 50, respectively, and serve to mainly prevent air leakage. The first extension plate 635 and the second extension plate 634 are disposed opposite to each other, the heat storage member 50 is located between the first extension plate 635 and the second extension plate 634, and the first extension plate 635 and the second extension plate 634 are attached to the heat storage side plate 52.

While the utility model has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims (10)

1. The heat dissipation assembly is characterized by comprising a temperature adjusting piece, a radiator, a heat storage piece and a ventilation assembly, wherein one end of the temperature adjusting piece is used for being connected with a piece to be cooled, the other end of the temperature adjusting piece is connected with the radiator, the heat storage piece is connected with the radiator, and the ventilation assembly is arranged corresponding to the radiator.

2. The heat dissipating assembly of claim 1, wherein said heat storage member comprises a heat storage base plate in contact with an end of said heat sink remote from said temperature regulating member.

3. The heat dissipating assembly of claim 2, wherein the heat sink comprises a heat dissipating base plate and a plurality of heat dissipating fins extending toward the heat storing base plate, the other end of the temperature adjusting member is connected to the heat dissipating base plate, and the heat storing base plate is in contact with one end of the plurality of heat dissipating fins away from the heat dissipating base plate.

4. A heat dissipating assembly according to claim 3, wherein a heat dissipating channel is formed between two adjacent heat dissipating fins, said heat dissipating channel being connected to said heat storage bottom plate.

5. The heat dissipating assembly of claim 4, wherein said vent assembly is disposed on a side of said heat dissipating channel.

6. The heat dissipating assembly of claim 2, wherein said heat storage member further comprises heat storage side plates connected to opposite sides of said heat storage bottom plate, respectively, said heat storage side plates being in contact with respective sides of said heat sink.

7. The heat dissipating assembly of claim 1, wherein the heat storage member comprises a heat storage side plate in contact with a side of the heat sink.

8. The heat dissipating assembly of claim 7, wherein said heat storage side plate is further in contact with a side edge of said temperature regulating member.

9. The heat dissipating assembly of claim 1, wherein said heat storage member is a phase change heat storage member.

10. A wireless charging device, comprising a housing, a member to be cooled disposed in the housing, and a cooling assembly according to any one of claims 1-9, wherein the member to be cooled is a wireless charging module.