CN219352167U

CN219352167U - Radiating assembly and wearable display device

Info

Publication number: CN219352167U
Application number: CN202222711843.5U
Authority: CN
Inventors: 黄�俊; 戴景文; 贺杰
Original assignee: Guangdong Virtual Reality Technology Co Ltd
Current assignee: Guangdong Virtual Reality Technology Co Ltd
Priority date: 2022-10-14
Filing date: 2022-10-14
Publication date: 2023-07-14
Anticipated expiration: 2032-10-14

Abstract

The utility model provides a heat dissipation assembly and a wearable display device. The heat dissipation assembly is applied to the wearable display device with the heating element. The heat dissipation assembly comprises a heat dissipation substrate, a heat conduction piece and a heat dissipation fan. The heat conducting piece is connected to the heat radiating substrate in a heat conducting mode, and is suitable for conducting heat with the heating element. The heat dissipation fan is installed in the heat dissipation base plate to heat dissipation fan and heat conduction piece are located the opposite both sides of heat dissipation base plate. Therefore, the heat dissipation fan can drive air to flow to the heat dissipation substrate and take away heat of the heat dissipation substrate, so that the temperature of the heating element is reduced, the running speed of the wearable display device is improved, and the user experience is improved.

Description

Radiating assembly and wearable display device

Technical Field

The utility model relates to the technical field of wearable equipment, in particular to a heat dissipation assembly and wearable display equipment.

Background

In the related art, a wearable display device may transmit an optical signal to an eye, and may achieve different effects of Virtual Reality (VR), augmented Reality (AR), mixed Reality (MR), and the like. The heating element of the wearable display device may generate a large amount of heat, thereby reducing the operation efficiency of the wearable display device. The heat dissipation assembly of the wearable display device may be used to dissipate heat from the wearable heat dissipation assembly, thereby enabling the wearable display device to remain efficient in operation. However, the conventional heat dissipation assembly has a poor heat dissipation effect, resulting in a poor user experience.

Disclosure of Invention

The embodiment of the utility model provides a heat dissipation assembly and a wearable display device, so as to improve at least one of the problems.

The embodiments of the present utility model achieve the above object by the following technical means.

In a first aspect, embodiments of the present utility model provide a heat dissipation assembly applied to a wearable display device having a heating element. The heat dissipation assembly comprises a heat dissipation substrate, a heat conduction piece and a heat dissipation fan. The heat conducting piece is connected to the heat radiating substrate in a heat conduction mode, and is suitable for heat conduction with the heating element. The heat dissipation fan is installed in the heat dissipation base plate to heat dissipation fan and heat conduction piece are located the opposite both sides of heat dissipation base plate.

In some embodiments, the heat dissipating substrate has first and second surfaces that are opposite. The heat conducting piece is connected to the first surface in a heat conduction way, and the heat radiating fan is arranged on the second surface. The heat dissipation base plate is also provided with an air outlet, the air outlet penetrates through the first surface and the second surface, and the heat dissipation fan is opposite to the air outlet.

In some embodiments, a plurality of heat dissipation convex parts are convexly arranged on one side of the heat dissipation substrate facing the heat dissipation fan, and the plurality of heat dissipation convex parts are arranged at intervals.

In some embodiments, the heat-conducting member comprises a heat pipe thermally connected to the heat-dissipating substrate.

In some embodiments, the heat pipe is provided with a circulation channel.

In a second aspect, the embodiment of the utility model further provides a wearable display device. The wearable display device comprises the heating element and the heat dissipation assembly of any of the embodiments. The heat conducting piece is connected with the heating element and the heat radiating substrate in a heat conduction mode.

In some embodiments, the heat generating element has first and second opposite sides. The heat dissipation assembly is thermally conductively connected to the first side. The wearable display device further comprises a temperature equalizing piece, and the temperature equalizing piece is connected to the second side part in a heat conduction mode.

In some embodiments, the wearable display apparatus further comprises a thermal shield positioned on a side of the temperature equalization member facing away from the heating element.

In some embodiments, the wearable display apparatus further comprises a housing, and the heat dissipating assembly and the heat generating element are disposed within the housing. A heat dissipation space is formed between the shell and the heat dissipation substrate, and the heat dissipation fan is located in the heat dissipation space. The shell is provided with an air inlet and an air outlet, both the air inlet and the air outlet are communicated with the heat dissipation space, and the air inlet faces the air inlet side of the heat dissipation fan. The air outlet faces the air outlet side of the heat radiation fan.

In some embodiments, the air inlet is directed toward the heat dissipating substrate.

In the heat dissipation assembly and the wearable display device provided by the embodiment of the utility model, the heat dissipation assembly is applied to the wearable display device with the heating element, and is connected to the heat dissipation substrate through the heat conduction of the heat conduction element, the heat conduction element is suitable for heat conduction with the heating element, so that heat generated by the heating element is thermally conducted to the heat dissipation substrate, and is arranged on the heat dissipation substrate through the heat dissipation fan, and the heat dissipation fan and the heat conduction element are positioned on two opposite sides of the heat dissipation substrate, so that the heat dissipation fan can drive air to flow to the heat dissipation substrate and take away heat of the heat dissipation substrate, thereby reducing the temperature of the heating element, improving the running speed of the wearable display device, and improving the user experience. In addition, compared with a traditional heat dissipation assembly, the heat dissipation assembly reduces a more tortuous airflow path, so that noise is reduced, and the experience of a user is improved.

Drawings

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

Fig. 1 shows a schematic structural diagram of a heat dissipating assembly according to an embodiment of the present utility model.

Fig. 2 illustrates a bottom view of the heat dissipating assembly of fig. 1.

Fig. 3 shows an enlarged view at III in fig. 2.

Fig. 4 shows an enlarged view at IV in fig. 1.

Fig. 5 shows a schematic structural diagram of a wearable display device according to an embodiment of the present utility model.

Fig. 6 is a schematic view showing a split structure of a part of the structure of the heat dissipating assembly and the housing in fig. 5.

Fig. 7 shows a schematic structural view of the housing of fig. 6.

Detailed Description

In order to make the present utility model better understood by those skilled in the art, the following description of the present utility model will be made in detail with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which a person skilled in the art would obtain without making any inventive effort, are within the scope of the utility model.

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

The utility model provides a heat dissipation assembly, which can be applied to a wearable display device with a heating element. For example, the heat dissipation assembly may be applied to a head mounted display having a heat generating element. The heat generating element may be a circuit board. In the following embodiments, the application of the heat dissipation assembly to the head-mounted display will be mainly described as an example, and other cases where the heat dissipation assembly is needed may be referred to for implementation.

Referring to fig. 1 and fig. 2 together, the heat dissipating assembly 10 includes a heat dissipating substrate 100, a heat conducting member 200 and a heat dissipating fan 300, wherein the heat conducting member 200 is thermally connected to the heat dissipating substrate 100, and the heat conducting member 200 is adapted to thermally conduct with the heat generating element 400. The heat dissipation blower 300 is mounted to the heat dissipation substrate 100, and the heat dissipation blower 300 and the heat conduction member 200 are located at opposite sides of the heat dissipation substrate 100. This is the case. The heat generated by the heating element 400 is thermally conducted to the heat dissipation substrate 100, and the heat dissipation fan 300 can drive air to flow to the heat dissipation substrate 100 and take away the heat of the heat dissipation substrate 100, so that the temperature of the heating element 400 is reduced, the running speed of the wearable display device 20 is improved, and the user experience is improved. In addition, compared with the traditional heat dissipation assembly 10, the heat dissipation assembly 10 reduces a more tortuous airflow path, reduces collision between airflow and the heat dissipation assembly 10, reduces noise, and improves user experience.

The heat dissipation fan 300 may be, but is not limited to, a fan, a centrifugal fan, an axial flow fan, a cross flow fan, and the like. The shape of the heat dissipation fan 300 may be designed according to the heat dissipation requirement of the heat dissipation substrate 100. In other embodiments, the number of the heat dissipation fans 300 may be plural, and the plurality of heat dissipation fans 300 may drive more air to flow to the heat dissipation substrate 100, thereby increasing the amount of air flowing to the heat dissipation substrate 100 and improving the heat dissipation efficiency of the heat dissipation assembly 10. In addition, the heat dissipation fan 300 may be fixed to the heat dissipation substrate 100 by means of screws or snaps.

The heat dissipation substrate 100 is disposed in a plate shape, so that the heat dissipation assembly 10 can conveniently increase the contact area between the heat dissipation substrate 100 and the heat conduction member 200, and the contact area between the heat dissipation substrate 100 and the air can conveniently and rapidly dissipate the heat transferred by the heat conduction member 200.

The heat dissipating substrate 100 has a first surface 101 and a second surface 102 opposite to each other. The first surface 101 and the second surface 102 may be surfaces of the heat dissipating substrate 100. The first surface 101 may be in thermal conductive connection with the heat conductive member 200, for example, the first surface 101 may abut against a surface of the heat conductive member 200, and for example, the first surface 101 may be welded to the heat conductive member 200, so that the heat conductive member 200 can contact with the heat dissipation substrate 100, thereby facilitating the heat conductive member 200 to rapidly transfer heat to the heat dissipation substrate 100.

The second surface 102 of the heat dissipation substrate 100 may be provided for the heat dissipation fan 300 to be installed, so that the heat dissipation fan 300 is convenient to drive air to flow to the second surface 102, so that heat exchange occurs between the heat dissipation substrate 100 and the air, and further, the heat dissipation effect of the heat dissipation substrate 100 is ensured.

Referring to fig. 3, the heat dissipation substrate 100 may be provided with an air outlet 103, and the air outlet 103 may penetrate through the first surface 101 and the second surface 102, so that the heat dissipation fan 300 may drive air to flow from the air outlet 103 to the heat generating element 400, and the heat generating element 400 may directly exchange heat with the air. In addition, the heat dissipation fan 300 can be opposite to the air passing opening 103, so that the heat dissipation fan 300 can directly drive air to the air passing opening 103, the flow path of the air between the heat dissipation fan 300 and the air passing opening 103 is shortened, more friction between the air and the heat dissipation assembly 10 is avoided, noise generated by air friction is reduced, and user experience is improved.

Referring to fig. 4, a plurality of heat dissipation protrusions 104 may be disposed on a side of the heat dissipation substrate 100 facing the heat dissipation fan 300, and the plurality of heat dissipation protrusions 104 are disposed at intervals, so as to increase a contact area between the heat dissipation substrate 100 and air, improve heat dissipation efficiency of the heat dissipation substrate 100, and enable the heat dissipation substrate 100 to perform heat exchange with the air rapidly.

The heat dissipating protrusion 104 may be a heat dissipating protrusion, for example, a length direction of the heat dissipating protrusion 104 may extend along a length direction of the heat dissipating substrate 100, and for example, a length direction of the heat dissipating protrusion 104 may extend along a width direction of the heat dissipating substrate 100, thereby facilitating heat exchange between the heat dissipating protrusion 104 and air.

The heat conducting member 200 may be disposed in a strip shape, so as to facilitate heat conduction between the heat conducting member 200 and the heat dissipating substrate 100, and make the heat dissipating assembly 10 more compact. The number of the heat conductive members 200 may be plural, and the plurality of heat conductive members 200 may be arranged at intervals along the length direction of the heat dissipation substrate 100 or along the width direction of the heat dissipation substrate 100, thereby facilitating the heat conductive members 200 to rapidly conduct heat to the heat dissipation substrate 100.

The heat conducting member 200 may be a heat pipe, and the general outline of the heat pipe may be in a square column shape or a cylindrical shape, so that the heat pipe is conveniently mounted on the heat dissipating substrate 100, and the heat dissipating assembly 10 is more compact.

Further, the heat pipe may be provided with a circulation channel (not shown), the circulation channel may be provided with a refrigerant, and the refrigerant may undergo a phase change in the circulation channel, so that one end of the heat pipe, which is close to the heating element 400, is conducted to the other end of the heat pipe, which is close to the heat dissipation substrate 100, thereby facilitating the heat conduction of the heat pipe to the heat dissipation substrate 100 by the heat of the heating element 400.

Referring to fig. 5, the present utility model further proposes a wearable display device 20, where the wearable display device 20 may be a head-mounted display. Wherein the Head Mounted Display (HMD), i.e. the head display. The head display can realize different effects such as Virtual Reality (VR), augmented Reality (AR), mixed Reality (MR) and the like by transmitting optical signals to eyes. In the following embodiments, the wearable display device 20 is mainly described as an example of a head mounted display.

Referring to fig. 5 and 6, in the present embodiment, the wearable display apparatus 20 may include a heat generating element 400 and a heat dissipating component 10, and the heat dissipating component 10 is thermally connected to the heat generating element 400, so as to facilitate heat dissipation of the heat generating element 400. The specific structure of the heat dissipation assembly 10 refers to the above embodiment, and since the wearable display device 20 adopts all the technical solutions of the above embodiment, at least all the beneficial effects brought by the technical solutions of the above embodiment are provided, and will not be described in detail herein.

Further, the heat conductive member 200 of the heat dissipating assembly 10 is thermally connected to the heat generating element 400 and the heat dissipating substrate 100, thereby facilitating the heat transfer of the heat generating element 400 to the heat dissipating substrate 100.

In some embodiments, the heat generating element 400 may be a circuit board. The heat generating element 400 may have a first side 401 and a second side 402 opposite to each other, and the heat dissipating assembly 10 is thermally conductively connected to the first side 401, so that the heat conductive member 200 may be thermally conductively connected to the first side 401.

The wearable display device 20 may further include a temperature equalization member 500. The temperature uniformity member 500 may be thermally conductively coupled to the second side 402, for example, the temperature uniformity member 500 may be in contact with the heat generating element 400 such that the heat generating element 400 thermally conducts heat to the temperature uniformity member 500. In this way, the region with higher temperature on the heating element 400 can conduct heat to the temperature equalizing member 500, and the temperature equalizing member 500 can conduct heat to the region with lower temperature on the heating element 400, so that the local temperature of the heating element 400 is prevented from being too high, the temperature of the heating element 400 is uniform in the whole, and the operation efficiency of the heating element 400 is further ensured.

The temperature equalization member 500 can be arranged in a sheet shape, which is beneficial to increasing the contact area of the temperature equalization member 500 and the heating element 400, thereby facilitating the heat exchange between the temperature equalization member 500 and the heating element 400 and avoiding the local overhigh temperature of the heating element 400.

The temperature equalization member 500 may be made of graphene material, so that the temperature equalization member 500 may have better heat conduction performance, and further, heat exchange between the temperature equalization member 500 and the heating element 400 is facilitated.

The wearable display apparatus 20 may further include a heat insulator 600, and the heat insulator 600 may be located at a side of the temperature equalization member 500 facing away from the heating element 400. In this manner, the thermal shield 600 may prevent the heat generating element 400 from transferring heat to other components of the wearable display device 20.

The heat insulating member 600 may be in a sheet shape, which is advantageous in increasing the area of the heat insulating member 600 and preventing the heat generating element 400, the temperature equalizing member 500, etc. from being thermally conducted with other components of the wearable display apparatus 20. The heat insulating member 600 may be manufactured using polyurethane foam such that the heat insulating member 600 has a good heat insulating effect.

In some embodiments, wearable display device 20 may further include a housing 700. The heat dissipating assembly 10 and the heat generating element 400 may be disposed within the housing 700. A heat dissipation space 701 may be formed between the housing 700 and the heat dissipation substrate 100, and the heat dissipation fan 300 is located in the heat dissipation space 701, so that the heat dissipation fan 300 is convenient for driving air to flow to the heat dissipation space 701, and heat exchange between the heat dissipation substrate 100 and the air is convenient.

Referring to fig. 6 and 7, the housing 700 may be provided with an air inlet 702 and an air outlet 703. The air inlet 702 and the air outlet 703 may both be connected to the heat dissipation space 701, and the air inlet 702 may face the air inlet side 301 of the heat dissipation fan 300, and the air outlet 703 faces the air outlet side 302 of the heat dissipation fan 300. In this way, the cooling fan 300 can quickly drive the air outside the air housing 700 to flow to the cooling space 701, and can quickly drive the air outside the cooling space 701 to flow out of the housing 700, so as to reduce the friction between the air and the housing 700, thereby reducing the noise generated by the wearable display device 20.

Further, the air inlet 702 may be disposed towards the heat dissipating substrate 100. In this way, the air can directly flow to the heat dissipation substrate 100, so that the air and the heat dissipation substrate 100 can directly exchange heat, thereby effectively shortening the movement path of the air and avoiding generating a relatively curved airflow path in the housing 700. Of course, the number of the air inlets 702 and the air outlets 703 may be plural, and the specific number may be designed according to the number of the heat dissipation fans 300 and the heat dissipation requirement of the heat dissipation substrate 100.

In some implementations, as shown in fig. 5, the wearable display device 20 may further include a wearing component 800, which wearing component 800 may enable a user to wear the wearable display device 20 on the user's head.

In the present utility model, the terms "mounted," "connected," and the like should be construed broadly unless otherwise specifically indicated or defined. For example, the connection can be fixed connection, detachable connection, integral connection or transmission connection; may be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for understanding as a specific or particular structure. The description of the term "some embodiments" means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In the present utility model, the schematic representations of the above terms are not necessarily for the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples of the present utility model and features of various embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting thereof; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model, and they should be included in the protection scope of the present utility model.

Claims

1. A heat dissipation assembly for use with a wearable display device having a heat generating element, comprising:

a heat-dissipating substrate;

a heat conducting member thermally connected to the heat dissipating substrate, the heat conducting member being adapted to thermally conduct with the heat generating element; and

the heat dissipation fan is arranged on the heat dissipation substrate, and the heat dissipation fan and the heat conduction piece are positioned on two opposite sides of the heat dissipation substrate.

2. The heat dissipating assembly of claim 1, wherein the heat dissipating substrate has a first surface and a second surface opposite to each other, the heat conducting member is thermally connected to the first surface, the heat dissipating fan is mounted on the second surface, the heat dissipating substrate is further provided with an air outlet penetrating through the first surface and the second surface, and the heat dissipating fan is opposite to the air outlet.

3. The heat dissipating assembly of claim 1, wherein a side of the heat dissipating substrate facing the heat dissipating fan is provided with a plurality of heat dissipating protrusions, and a plurality of the heat dissipating protrusions are disposed at intervals.

4. The heat dissipating assembly of claim 1, wherein said thermally conductive member comprises a heat pipe thermally conductively coupled to said heat dissipating substrate.

5. The heat sink assembly of claim 4 wherein the heat pipe is provided with a circulation channel.

6. A wearable display device, comprising:

heating element

The heat dissipating assembly of any of claims 1 to 5, wherein the thermally conductive member is thermally conductively coupled to the heat generating element and the heat dissipating substrate.

7. The wearable display apparatus of claim 6, wherein the heat generating element has a first side and a second side opposite each other, the heat dissipating assembly thermally conductively coupled to the first side, the wearable display apparatus further comprising a temperature equalization member thermally conductively coupled to the second side.

8. The wearable display apparatus of claim 7, further comprising a thermal shield positioned on a side of the temperature equalization member facing away from the heating element.

9. The wearable display apparatus according to claim 6, further comprising a housing, wherein the heat dissipating assembly and the heat generating element are disposed in the housing, a heat dissipating space is formed between the housing and the heat dissipating substrate, the heat dissipating fan is located in the heat dissipating space, the housing is provided with an air inlet and an air outlet, the air inlet and the air outlet are both communicated with the heat dissipating space, the air inlet faces an air inlet side of the heat dissipating fan, and the air outlet faces an air outlet side of the heat dissipating fan.

10. The wearable display apparatus of claim 9, wherein the air inlet is oriented toward the heat dissipating substrate.