CN215121665U

CN215121665U - Heat sink device

Info

Publication number: CN215121665U
Application number: CN202120804370.6U
Authority: CN
Inventors: 王策; 曾光明
Original assignee: Shenzhen Ranvoo Technology Co Ltd
Current assignee: Shenzhen Ranvoo Technology Co Ltd
Priority date: 2021-04-20
Filing date: 2021-04-20
Publication date: 2021-12-10
Anticipated expiration: 2031-04-20

Abstract

The utility model discloses a heat abstractor, which comprises an outer shell, the circuit board, refrigeration piece and waterproof spacer, the shell is equipped with and holds the chamber, the circuit board, refrigeration piece and waterproof spacer all hold in holding the intracavity, the circuit board with refrigeration piece electric connection and be used for controlling the operating condition of refrigeration piece, heat abstractor has the working face, the refrigeration piece is used for refrigerating for the working face, one side that the circuit board is close to the working face is equipped with electronic component, attached in one side that the circuit board has electronic component of waterproof spacer covers electronic component, circuit board and waterproof spacer all are equipped with the through-hole that corresponds with the refrigeration piece, one side of refrigeration piece is passed circuit board and waterproof spacer and is exposed from the through-hole. The waterproof spacer is arranged on one side, provided with the electronic element, of the circuit board to cover the electronic element, so that the heat radiating device is prevented from being short-circuited when condensed water drops contact the electronic element during heat radiation of the back of the mobile equipment, and the refrigerating sheet, the circuit board and the waterproof spacer are more compact and small in structure.

Description

Heat sink device

Technical Field

The utility model relates to a mobile device heat dissipation technical field especially relates to a heat abstractor.

Background

With the development of electronic equipment, game software becomes the most software installed by electronic equipment users, but part of games have high requirements on the running speed of the electronic equipment, a large amount of heat is generated after the games run for a long time, if the heat cannot be dissipated timely, the heat generated by the electronic equipment not only affects the use experience, but also affects the performance of the electronic equipment, and even seriously burns out hardware.

The radiator is used for radiating heat for the mobile electronic equipment so as to improve the working performance of the mobile electronic equipment and prolong the service life of the battery. At present, game software becomes the most software installed by electronic equipment users, but part of games have high requirements on the running speed of the electronic equipment, a large amount of heat can be generated after the games run for a long time, if the heat cannot be dissipated timely, the heat generated by the electronic equipment not only influences the use experience, but also influences the performance of the electronic equipment, and even seriously burns out hardware. Generally, the user can use external radiator to dispel the heat to electronic equipment, and the support of radiator can be through carrying out the joint with electronic equipment, and the radiator laminates with electronic equipment back mutually, when electronic equipment generates heat, dispels the heat through the radiator to dispel the heat for electronic equipment.

However, the existing radiator is easy to condense water vapor during refrigeration, and may be condensed into water drops when used for a long time, and the radiator is internally provided with a circuit board on which a plurality of electronic elements are arranged, so that when the water drops drop onto the circuit board, the circuit board is easy to be short-circuited and damaged.

SUMMERY OF THE UTILITY MODEL

In order to overcome the shortcoming and the deficiency that exist among the prior art, the utility model aims to provide a heat abstractor to solve among the prior art radiator owing to can condense the problem that the drop of water leads to the circuit board short circuit.

The purpose of the utility model is realized through the following technical scheme:

the utility model provides a heat abstractor, which comprises an outer shell, the circuit board, refrigeration piece and waterproof spacer, this shell is equipped with and holds the chamber, this circuit board, this refrigeration piece and this waterproof spacer all hold in this holds the intracavity, this circuit board and this refrigeration piece electric connection are used for controlling the operating condition of this refrigeration piece, this heat abstractor has the working face, this refrigeration piece is used for refrigerating for this working face, one side that this circuit board is close to this working face is equipped with electronic component, attached one side that this circuit board has this electronic component of this waterproof spacer covers this electronic component, this circuit board and this waterproof spacer all are equipped with the through-hole that corresponds with this refrigeration piece, one side of this refrigeration piece is passed this circuit board and this waterproof spacer and is exposed from this through-hole.

Further, this heat abstractor still includes heat conduction silica gel piece, and this shell is equipped with and holds the hole of dodging that the chamber switched on, and one side of this heat conduction silica gel piece is followed this and is dodged hole department and expose and form this working face.

Further, this heat abstractor still includes the wireless subassembly that charges, this wireless subassembly that charges is located between this refrigeration piece and this heat conduction silica gel piece and with this circuit board electric connection, this wireless subassembly that charges contacts with the cold junction face of this refrigeration piece, and this wireless subassembly that charges is used for carrying out wireless charging for the mobile device.

Further, this wireless subassembly that charges includes wireless charging coil and aluminum sheet, and this aluminum sheet contacts with the cold junction face of this refrigeration piece, and this wireless charging coil is located between this aluminum sheet and this heat conduction silica gel piece.

Further, this heat abstractor still includes the fan, and this fan holds in this holds the intracavity and with this circuit board electric connection, and this shell is equipped with the air intake and the air outlet that switch on with this holding chamber, and this fan drive gas gets into this holding intracavity and blows out from this air outlet from this air intake, and this fan is used for dispelling the heat to the hot terminal surface of this refrigeration piece.

Furthermore, the heat dissipation device also comprises a heat dissipation fin, the heat dissipation fin is accommodated in the accommodating cavity and is in contact with the hot end face of the refrigerating sheet, the circuit board is positioned between the heat dissipation fin and the waterproof spacer, and the heat dissipation fin is arranged around the outer edge of the fan.

Further, the heat dissipation device further comprises a wind shield, the wind shield is accommodated in the accommodating cavity and located on one side of the fan facing the air inlet, and the wind shield is used for preventing air from being blown out of the air inlet.

Further, this heat abstractor still includes light subassembly, and this light subassembly holds in this holds the intracavity and with this circuit board electric connection, and this deep bead is connected in the one side that this light subassembly kept away from this air intake.

Further, this light subassembly includes lamp shade and lamp plate, and this lamp shade is installed on this shell, and this lamp plate is located between this lamp shade and this deep bead, and this lamp plate is equipped with the lamp pearl towards one side of this lamp shade.

Further, the waterproof spacer is fixed with the circuit board through glue.

The utility model has the advantages that: heat abstractor includes the shell, the circuit board, refrigeration piece and waterproof spacer, the shell is equipped with and holds the chamber, the circuit board, refrigeration piece and waterproof spacer all hold in holding the intracavity, circuit board and refrigeration piece electric connection are used for controlling the operating condition of refrigeration piece, heat abstractor has the working face, the refrigeration piece is used for refrigerating for the working face, one side that the circuit board is close to this working face is equipped with electronic component, the attached one side that has electronic component in the circuit board of waterproof spacer covers electronic component. Set up waterproof spacer and cover electronic component through the one side that is equipped with electronic component at the circuit board to the drop of water that the heat abstractor condenses into when being the back heat dissipation of mobile device takes place the short circuit because of contacting electronic component, and one side of refrigeration piece passes circuit board and waterproof spacer and exposes from the through-hole, makes the structure of refrigeration piece, circuit board and waterproof spacer compacter, small and exquisite.

Drawings

Fig. 1 is a schematic front view of the heat dissipation device of the present invention;

fig. 2 is one of the rear-view split structural schematic diagrams of the heat dissipation device of the present invention;

fig. 3 is a schematic cross-sectional structure diagram of the heat dissipation device of the present invention;

fig. 4 is a schematic view of a front view of the heat dissipation device of the present invention;

fig. 5 is a second rear view of the heat dissipation device of the present invention.

In the figure: the heat dissipation device 10, hold chamber 101, working face 102, dodge hole 103, air intake 104, air outlet 105, through-hole 106, shell 11, front shell 11a, back casing 11b, circuit board 12, electronic component 121, charge interface 122, control switch 123, refrigeration piece 13, waterproof spacer 14, heat conduction silica gel piece 15, wireless charging assembly 16, wireless charging coil 161, aluminum sheet 162, fan 17, deep bead 171, radiating fin 18, light subassembly 19, lamp shade 191, lamp plate 192, lamp pearl 192 a.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the objects of the present invention, the following detailed description of the embodiments, structures, features and effects of the heat dissipation device according to the present invention with reference to the accompanying drawings and preferred embodiments is as follows:

fig. 1 is the utility model discloses well heat abstractor's main view structure schematic diagram, fig. 2 is the utility model discloses one of well heat abstractor's back split structure schematic diagram, fig. 3 is the utility model discloses well heat abstractor's cross-sectional structure schematic diagram, fig. 4 is the utility model discloses well heat abstractor's main view split structure schematic diagram, fig. 5 is the utility model discloses well heat abstractor's back split structure schematic diagram two.

As shown in fig. 1 to 5, the utility model provides a pair of heat abstractor 10, which comprises an outer shell 11, circuit board 12, refrigeration piece 13 (preferably semiconductor refrigeration piece) and waterproof spacer 14, shell 11 is equipped with and holds chamber 101, circuit board 12, refrigeration piece 13 and waterproof spacer 14 all hold in holding chamber 101, circuit board 12 and refrigeration piece 13 electric connection and be used for controlling the operating condition of refrigeration piece 13, heat abstractor 10 has working face 102, refrigeration piece 13 is used for refrigerating for working face 102, one side that circuit board 12 is close to working face 102 is equipped with electronic component 121, the attached one side that has electronic component 121 in circuit board 12 of waterproof spacer 14 covers electronic component 121. When the heat dissipation device 10 dissipates heat of a mobile device (e.g., a mobile phone, a tablet computer, a laptop computer, etc.), the heat dissipation device 10 is fixed to the back of the mobile device, and the working surface 102 is in contact with the back of the mobile device, thereby dissipating heat of the mobile device. The waterproof spacer 14 and the circuit board 12 are fixed by glue, and the waterproof spacer 14 is preferably a transparent PC (polycarbonate) sheet.

The utility model discloses a set up waterproof spacer 14 and cover electronic component 121 in one side that circuit board 12 was equipped with electronic component 121 to prevent that the drop of water that heat abstractor 10 condenses when the back heat dissipation for mobile device from contacting electronic component 121 and taking place the short circuit.

Further, the housing 11 is a hollow cylindrical structure as a whole, and the housing 11 includes a front case 11a and a rear case 11b connected to each other, and a receiving chamber 101 is formed between the front case 11a and the rear case 11 b.

Further, the heat dissipation device 10 further includes a heat-conducting silicone sheet 15, the rear housing 11b of the housing 11 is provided with an avoiding hole 103 communicated with the accommodating cavity 101, and one side of the heat-conducting silicone sheet 15 is exposed from the avoiding hole 103 and forms a working surface 102. In this embodiment, the rear case 11b is a circular ring structure, and one side of the thermal conductive silicone sheet 15 protrudes from the surface of the rear case 11b away from the front case 11a, so as to be in contact with the mobile device.

Further, the heat dissipation device 10 further includes a wireless charging assembly 16, the wireless charging assembly 16 is located between the refrigeration sheet 13 and the heat-conducting silicone sheet 15 and is electrically connected to the circuit board 12, the wireless charging assembly 16 is in contact with the cold end face of the refrigeration sheet 13, and the wireless charging assembly 16 is used for wirelessly charging the mobile device. Specifically, wireless charging assembly 16 includes wireless charging coil 161 and aluminum sheet 162, and aluminum sheet 162 contacts with the cold terminal surface of refrigeration piece 13, and wireless charging coil 161 is located between aluminum sheet 162 and the heat conduction silica gel piece 15. Among them, the aluminum sheet 162 has good thermal conductivity, thereby improving the heat dissipation effect to the wireless charging coil 161 and the mobile device. The heat of mobile device is through heat conduction silica gel piece 15 transmission to wireless charging assembly 16's aluminum sheet 162 on, then cools down for aluminum sheet 162 through the cold terminal surface of refrigeration piece 13. So that the heat sink 10 can not only dissipate heat of the mobile device, but also wirelessly charge the mobile device. Of course, in other embodiments, the wireless charging assembly 16 may not be provided, and the heat-conducting silicone sheet 15 directly contacts with the cold end surface of the cooling sheet 13, so as to dissipate heat of the mobile device.

Further, the heat dissipation device 10 further includes a fan 17, the fan 17 is accommodated in the accommodating cavity 101 and electrically connected to the circuit board 12, the housing 11 is provided with an air inlet 104 and an air outlet 105 communicated with the accommodating cavity 101, the fan 17 drives air to enter the accommodating cavity 101 from the air inlet 104 and blow out from the air outlet 105, and the fan 17 is used for dissipating heat from the hot end surface of the cooling fins 13.

Further, the heat dissipation device 10 further comprises a heat dissipation fin 18, the heat dissipation fin 18 is accommodated in the accommodating cavity 101 and is in contact with the hot end face of the cooling fin 13, the circuit board 12 is located between the heat dissipation fin 18 and the waterproof spacer 14, and the heat dissipation fin 18 is arranged around the outer edge of the fan 17. The heat generated at the hot end surface of the cooling fins 13 is transferred to the heat dissipation fins 18, and then is dissipated to the heat dissipation fins 18 through the fan 17.

In this embodiment, the circuit board 12 is disposed between the heat dissipating fin 18 and the wireless charging assembly 16, one side of the circuit board 12 having the electronic component 121 is far away from the heat dissipating fin 18, the circuit board 12 and the waterproof spacer 14 are both provided with through holes 106 corresponding to the cooling fins 13, one side of the cooling fins 13 penetrates through the circuit board 12 and the waterproof spacer 14 and is exposed from the through holes 106, so that the cooling fins 13, the circuit board 12 and the waterproof spacer 14 are more compact and small in structure. That is, the cold end face of the refrigeration sheet 13 contacts the aluminum sheet 162, and the hot end face of the refrigeration sheet 13 passes through the circuit board 12 and the waterproof spacer 14 through the through hole 106 and contacts the heat dissipation fin 18, so that the utilization rate of the accommodating cavity 101 can be improved, and the structure of the heat dissipation device 10 is more compact and small.

Further, the heat dissipating device 10 further includes a wind shielding plate 171, the wind shielding plate 171 is accommodated in the accommodating chamber 101 and is disposed on a side of the fan 17 facing the air inlet 104, and the wind shielding plate 171 is used for preventing air from being blown out from the air inlet 104. The wind shielding plate 171 is a circular ring-shaped structure and is disposed around an edge of the fan 17, and the wind shielding plate 171 is close to a front end (a side facing the air inlet 104) of the fan 17 to prevent hot wind blown by the fan 17 from streaming to the air inlet 104 and affecting a heat dissipation effect of the fan 17.

Further, the heat dissipation device 10 further includes a light assembly 19, the light assembly 19 is accommodated in the accommodating cavity 101 and electrically connected to the circuit board 12, and the wind shielding plate 171 is connected to a side of the light assembly 19 away from the air inlet 104. Specifically, light subassembly 19 includes lamp shade 191 and lamp plate 192, and lamp shade 191 installs on shell 11, and lamp plate 192 locates between lamp shade 191 and deep bead 171, and lamp plate 192 is equipped with lamp pearl 192a towards one side of lamp shade 191, and lamp pearl 192a is flickering the light of different colours (race horse lamp effect promptly) during operation for heat abstractor 10 is dazzling more when using. The lamp housing 191 and the wind screen 171 are preferably made of transparent PC (polycarbonate), and the wind screen 171 is disposed at the rear side (the side facing the heat conductive silicone sheet 15) of the light module 19, so as to avoid affecting the light effect of the light module 19. The light assembly 19 is a circular ring structure and is disposed around the edge of the fan 17, and the front case 11a of the housing 11 is provided with a light-transmitting sheet corresponding to the light assembly 19 so that light is emitted.

Further, still be equipped with the interface 122 that charges on the circuit board 12, thereby external power supplies power for circuit board 12, fan 17, refrigeration piece 13 and wireless subassembly 16 that charges through the interface 122 that charges.

Further, the housing 11 of the heat dissipation device 10 is provided with a control switch 123, the control switch 123 is mounted on the front housing 11a and electrically connected to the circuit board 12, and the control switch 123 has three position switches, which are respectively heat dissipation, heat dissipation plus wireless charging and wireless charging.

In this document, the terms of upper, lower, left, right, front, rear and the like are used to define the positions of the structures in the drawings and the positions of the structures relative to each other, and are only used for the sake of clarity and convenience in technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims. It is also to be understood that the terms "first" and "second," etc., are used herein for descriptive purposes only and are not to be construed as limiting in number or order.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description in any form, and although the present invention has been disclosed with the preferred embodiment, it is not limited to the present invention, and any skilled person in the art can make some changes or modifications within the technical scope of the present invention without departing from the technical scope of the present invention, and the technical contents of the above disclosure can be utilized to make equivalent embodiments, but the technical contents of the present invention are not broken away from, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention all still belong to the protection scope of the technical solution of the present invention.

Claims

1. A heat dissipation device is characterized by comprising a shell (11), a circuit board (12), a refrigeration piece (13) and a waterproof spacer (14), wherein the shell (11) is provided with a containing cavity (101), the circuit board (12), the refrigeration piece (13) and the waterproof spacer (14) are all contained in the containing cavity (101), the circuit board (12) is electrically connected with the refrigeration piece (13) and used for controlling the working state of the refrigeration piece (13), the heat dissipation device (10) is provided with a working surface (102), the refrigeration piece (13) is used for refrigerating the working surface (102), one side of the circuit board (12) close to the working surface (102) is provided with an electronic element (121), the waterproof spacer (14) is attached to one side of the circuit board (12) with the electronic element (121) and covers the electronic element (121), the circuit board (12) and the waterproof spacer (14) are both provided with through holes (106) corresponding to the refrigeration piece (13), one side of the refrigeration sheet (13) penetrates through the circuit board (12) and the waterproof spacer (14) and is exposed from the through hole (106).

2. The heat dissipation device according to claim 1, wherein the heat dissipation device (10) further comprises a heat conductive silicone sheet (15), the housing (11) is provided with an avoiding hole (103) communicated with the accommodating cavity (101), and one side of the heat conductive silicone sheet (15) is exposed from the avoiding hole (103) and forms the working surface (102).

3. The heat dissipation device of claim 2, wherein the heat dissipation device (10) further comprises a wireless charging assembly (16), the wireless charging assembly (16) is located between the cooling plate (13) and the heat-conducting silicone sheet (15) and electrically connected to the circuit board (12), the wireless charging assembly (16) is in contact with the cold end face of the cooling plate (13), and the wireless charging assembly (16) is used for wirelessly charging a mobile device.

4. The heat dissipation device of claim 3, wherein the wireless charging assembly (16) comprises a wireless charging coil (161) and an aluminum sheet (162), the aluminum sheet (162) is in contact with the cold end face of the refrigeration sheet (13), and the wireless charging coil (161) is located between the aluminum sheet (162) and the heat conductive silicone sheet (15).

5. The heat dissipation device of claim 1, wherein the heat dissipation device (10) further includes a fan (17), the fan (17) is accommodated in the accommodating cavity (101) and electrically connected to the circuit board (12), the housing (11) is provided with an air inlet (104) and an air outlet (105) communicated with the accommodating cavity (101), the fan (17) drives air to enter the accommodating cavity (101) from the air inlet (104) and blow out from the air outlet (105), and the fan (17) is used for dissipating heat from the hot end surface of the cooling fins (13).

6. The heat dissipating device as claimed in claim 5, wherein the heat dissipating device (10) further comprises a heat dissipating fin (18), the heat dissipating fin (18) being accommodated in the accommodating chamber (101) and being in contact with the hot end surface of the cooling fin (13), the circuit board (12) being located between the heat dissipating fin (18) and the waterproof spacer (14), the heat dissipating fin (18) being disposed around an outer edge of the fan (17).

7. The heat dissipating device according to claim 5, wherein the heat dissipating device (10) further comprises a wind deflector (171), the wind deflector (171) is accommodated in the accommodating chamber (101) and located on a side of the fan (17) facing the air inlet (104), and the wind deflector (171) is configured to prevent air from being blown out from the air inlet (104).

8. The heat dissipation device of claim 7, wherein the heat dissipation device (10) further comprises a light assembly (19), the light assembly (19) is accommodated in the accommodating cavity (101) and electrically connected to the circuit board (12), and the wind screen (171) is connected to a side of the light assembly (19) away from the air inlet (104).

9. The heat dissipation device of claim 8, wherein the light assembly (19) comprises a lampshade (191) and a lamp panel (192), the lampshade (191) is mounted on the housing (11), the lamp panel (192) is disposed between the lampshade (191) and the wind shield (171), and a lamp bead (192a) is disposed on one side of the lamp panel (192) facing the lampshade (191).

10. The heat sink according to any of claims 1-9, characterized in that the waterproof spacer (14) is fixed to the circuit board (12) by glue.