Heat dissipation assembly and display device

Abstract

The utility model discloses a heat dissipation assembly and a display device, and belongs to the technical field of display devices, the heat dissipation assembly comprises a heat dissipation fan, a phase change material and a heat production part, the phase change material is respectively connected with the heat dissipation fan and the heat production part, and the phase change material can absorb and store heat produced by the heat production part, so that the heat production part is maintained within a safe temperature range. The first temperature sensor is used for detecting the temperature of the phase-change material, when the temperature of the phase-change material is higher than a preset high temperature value, the cooling fan is started and cools the phase-change material, and when the temperature of the phase-change material is lower than a preset low temperature value, the cooling fan stops working. This allows the cooling fan to operate intermittently to reduce power consumption and prolong service life.

Description

Technical Field

[0001] The utility model relates to the technical field of display devices, and in particular to a heat dissipation component and a display device. Background Art

[0002] With the development of display device technology and the improvement of user requirements for display devices, display devices are gradually developing towards high brightness and low spacing of lamp beads, which greatly increases the power consumption of the display device and the heat generated by the power supply. At present, the power supply is often directly cooled by a cooling fan. When the display device displays an image, the cooling fan needs to run continuously to keep the power supply in a safe temperature range. The cooling fan that runs continuously consumes a lot of power and has a short service life. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a heat dissipation component and a display device to solve the problems of high power consumption and short life of the heat dissipation fan of the current display device.

[0004] The purpose of the utility model is achieved by the following technical solutions:

[0005] A heat dissipation component includes a heat dissipation fan, a phase change material and a heat generating component;

[0006] The phase change material is connected to the heat dissipation fan and the heat generating component respectively, and the phase change material is connected to a first temperature sensor;

[0007] The first temperature sensor is electrically connected to the heat dissipation fan, and the heat dissipation fan is used to dissipate heat from the phase change material.

[0008] Preferably, a second temperature sensor is provided on the heat generating component, and the second temperature sensor is electrically connected to the heat dissipation fan.

[0009] Preferably, it further comprises a shell having an inner cavity, the phase change material and the heat generating component are both located in the inner cavity, and the phase change material is attached to the inner wall surface of the inner cavity, and the heat dissipation fan is arranged on the outer wall surface of the shell.

[0010] Preferably, the outer wall surface of the shell is provided with a plurality of heat dissipation fins, and the air outlet of the heat dissipation fan is arranged opposite to the heat dissipation fins.

[0011] Preferably, an outer wall surface of the shell is provided with a mounting groove, and the heat dissipation fan and the heat dissipation fins are both located in the mounting groove.

[0012] Preferably, the heat generating component is provided with a heat conducting plane, and the phase change material is attached to the heat conducting plane.

[0013] Preferably, the second temperature sensor and the phase change material are respectively located on two opposite surfaces of the heat generating component.

[0014] Preferably, it further comprises a control circuit board, which is arranged on one of the heat dissipation fan, the phase change material or the heat generating component, and the control circuit board is electrically connected to the first temperature sensor and the heat dissipation fan respectively.

[0015] Preferably, a plurality of heat-conducting grooves are provided on the heat-conducting plane, and the heat-conducting grooves are filled with the phase change material.

[0016] In order to solve the same technical problem, the utility model also provides a display device, including the heat dissipation assembly as described above.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The phase change material is respectively connected to the cooling fan and the heat generating component. The phase change material can absorb and store the heat generated by the heat generating component to maintain the heat generating component within a safe temperature range. The first temperature sensor is used to detect the temperature of the phase change material. When the phase change material is higher than a preset higher temperature value, the cooling fan starts and dissipates the heat of the phase change material. When the phase change material is lower than a preset lower temperature value, the cooling fan stops working, which allows the cooling fan to run intermittently to reduce power consumption and extend service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is one of the three-dimensional structural schematic diagrams of the heat dissipation component of the utility model;

[0020] Figure 2 The second schematic diagram of the three-dimensional structure of the heat dissipation component of the utility model;

[0021] Figure 3 This is one of the exploded schematic diagrams of the heat dissipation assembly of the utility model;

[0022] Figure 4 The second exploded schematic diagram of the heat dissipation component of the utility model;

[0023] In the figure: 10, cooling fan; 20, phase change material; 21, first temperature sensor; 30, heat generating component; 31, second temperature sensor; 32, heat conducting plane; 40, housing; 41, inner cavity; 42, cooling fins; 43, mounting groove. DETAILED DESCRIPTION

[0024] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0027] Example 1

[0028] Combination Figure 1 and Figure 3 As shown, the heat dissipation component of the utility model is schematically shown, including a heat dissipation fan 10, a phase change material 20 and a heat generating component 30. In this embodiment, the heat generating component 30 is a power module of the display device, and the power module generates heat when supplying power to the display panel of the display device.

[0029] The phase change material 20 is connected to the heat dissipation fan 10 and the heat generating component 30 respectively. Since the phase change material 20 has latent heat of phase change, the phase change material 20 can absorb and store the heat generated by the heat generating component 30, so that the heat generating component 30 is maintained within a safe temperature range. A first temperature sensor 21 is connected to the phase change material 20. The first temperature sensor 21 is used to detect the temperature of the phase change material 20. The first temperature sensor 21 is electrically connected to the heat dissipation fan 10. The heat dissipation fan 10 is used to dissipate heat from the phase change material 20. The heat dissipation fan 10 can be started or stopped according to the temperature detected by the first temperature sensor 21.

[0030] When the first temperature sensor 21 detects that the temperature of the phase change material 20 is higher than a preset first temperature value, the cooling fan 10 is controlled to start and dissipate heat for the phase change material 20. When the first temperature sensor 21 detects that the temperature of the phase change material 20 is lower than a preset second temperature value, the cooling fan 10 is controlled to stop. This allows the cooling fan 10 to run intermittently, which can effectively reduce the power consumption of the cooling fan 10 and extend the service life of the cooling fan 10.

[0031] By absorbing and storing the heat generated by the heat-generating component 30 through the phase change material 20, the heat-generating component 30 can be maintained within a safe temperature range, and the heat-generating component 30 can operate stably for a long time. When the phase change material 20 absorbs a certain amount of heat to make itself reach the first temperature value, the cooling fan 10 quickly dissipates the heat of the phase change material 20 until the phase change material 20 is cooled to the second temperature value, and the cooling fan 10 stops running. Therefore, the cooling fan 10 runs intermittently to reduce power consumption.

[0032] Example 2

[0033] Combination Figures 1 to 4 As shown, the difference between this embodiment and embodiment 1 is that a second temperature sensor 31 is provided on the heat generating component 30 , the second temperature sensor 31 is electrically connected to the heat dissipation fan 10 , and the second temperature sensor 31 is used to detect the temperature of the heat generating component 30 .

[0034] When the second temperature sensor 31 detects that the temperature of the heat generating component 30 is higher than the preset third temperature value, the heat dissipation fan 10 is controlled to start and dissipate the heat of the phase change material 20 in time, so that the phase change material 20 further absorbs the heat generated by the heat generating component 30. When the second temperature sensor 31 detects that the temperature of the heat generating component 30 is lower than the preset fourth temperature value, the temperature of the phase change material 20 is detected by the first temperature sensor 21 to control the start and stop of the heat dissipation fan 10.

[0035] like Figure 3 and Figure 4 The second temperature sensor 31 and the phase change material 20 are respectively located on two opposite surfaces of the heat generating component 30. The phase change material 20 can absorb the heat emitted by the heat generating component 30. Therefore, the temperature of the side of the heat generating component 30 close to the phase change material 20 is lower than the temperature of the side of the heat generating component 30 away from the phase change material 20. The second temperature sensor 31 is suitable for detecting the temperature of the heat generating component 30. The second temperature sensor 31 is set on the side of the heat generating component 30 away from the phase change material 20, so that the temperature at the highest point of the heat generating component 30 can be detected.

[0036] Combination Figure 2 and Figure 4As shown, the heat dissipation assembly also includes a shell 40 having an inner cavity 41, the phase change material 20 and the heat generating component 30 are both located in the inner cavity 41, the shell 40 is used to install and protect the phase change material 20 and the heat generating component 30, the phase change material 20 is attached to the inner wall surface of the inner cavity 41, the heat dissipation fan 10 is arranged on the outer wall surface of the shell 40, and the shell 40 is preferably made of metal material to facilitate faster heat transfer. The phase change material 20 can transfer its stored heat to the shell 40, and the heat dissipation fan 10 dissipates heat from the shell 40, thereby indirectly dissipating heat from the phase change material 20. In order to improve the heat dissipation efficiency of the shell 40, a plurality of heat dissipation fins 42 are provided on the outer wall surface of the shell 40, and the air outlet of the heat dissipation fan 10 is arranged opposite to the heat dissipation fins 42. The cold air blown out by the heat dissipation fan 10 quickly flows through the heat dissipation fins 42, and the heat dissipation fins 42 increase the area of ​​the outer surface of the shell 40 to achieve more efficient heat dissipation.

[0037] Furthermore, the outer wall of the housing 40 is provided with a mounting groove 43, and the heat dissipation fan 10 and the heat dissipation fins 42 are both located in the mounting groove 43, wherein the heat dissipation fins 42 are parallel to the direction of the air outlet of the heat dissipation fan 10, that is, the airflow blown out by the heat dissipation fan 10 is parallel to the heat dissipation fins. The mounting groove 43 can accommodate the heat dissipation fan 10 and the heat dissipation fins 42, so as to prevent the heat dissipation fan 10 and the heat dissipation fins 42 from protruding from the outer wall of the housing 40, and can reduce the risk of the heat dissipation fan 10 and the heat dissipation fins 42 being damaged by foreign objects.

[0038] Specifically, the heat generating component 30 is provided with a heat conducting plane 32 , and the phase change material 20 is attached to the heat conducting plane 32 . The heat generating component 30 and the phase change material 20 are in surface contact, which can efficiently transfer heat and also make the temperature of the heat conducting plane 32 of the heat generating component 30 more uniform.

[0039] In order to receive the temperature value data collected by the first temperature sensor 21 and the second temperature sensor 31 and control the start and stop of the cooling fan 10, the cooling component also includes a control circuit board, which is arranged on one of the cooling fan 10, the phase change material 20 or the heat generating component 30, and the control circuit board is electrically connected to the first temperature sensor 21 and the cooling fan 10 respectively.

[0040] Example 3

[0041] The difference between this embodiment and embodiment 2 is that a plurality of heat-conducting grooves are provided on the heat-conducting plane 32, and the heat-conducting grooves are filled with phase change material 20. The provision of the heat-conducting grooves can increase the contact area between the heat-generating component 30 and the phase change material 20 to transfer heat more efficiently.

[0042] Example 4

[0043] In order to solve the same technical problem, this embodiment discloses a display device, including the heat dissipation assembly as described above, the display device has a display panel, the heat generating component 30 is a power module of the display device, and the power module is used to provide electrical energy to the display panel.

[0044] In summary, the phase change material 20 is respectively connected to the cooling fan 10 and the heat generating component 30. The phase change material 20 can absorb and store the heat generated by the heat generating component 30 to maintain the heat generating component 30 within a safe temperature range. The first temperature sensor 21 is used to detect the temperature of the phase change material 20. When the phase change material 20 is higher than a preset higher temperature value, the cooling fan 10 starts and dissipates the heat for the phase change material 20. When the phase change material 20 is lower than a preset lower temperature value, the cooling fan 10 stops working, which allows the cooling fan 10 to run intermittently to reduce power consumption and extend service life.

[0045] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A heat dissipation component, characterized in that: It includes a cooling fan, a phase change material, a heat generating component and a shell with an inner cavity; The phase change material is connected to the heat dissipation fan and the heat generating component respectively, and the phase change material is connected to a first temperature sensor; The first temperature sensor is electrically connected to the cooling fan, and the cooling fan is used to dissipate heat from the phase change material; The phase change material and the heat generating component are both located in the inner cavity, and the phase change material is attached to the inner wall surface of the inner cavity, and the heat dissipation fan is arranged on the outer wall surface of the shell.

2. The heat dissipation assembly according to claim 1, characterized in that: The heat generating component is provided with a second temperature sensor, and the second temperature sensor is electrically connected to the heat dissipation fan.

3. The heat dissipation assembly according to claim 1, characterized in that: The outer wall surface of the shell is provided with a plurality of heat dissipation fins, and the air outlet of the heat dissipation fan is arranged opposite to the heat dissipation fins.

4. The heat dissipation assembly according to claim 3, characterized in that: An installation groove is formed on the outer wall surface of the shell, and the heat dissipation fan and the heat dissipation fins are both located in the installation groove.

5. The heat dissipation assembly according to claim 1, characterized in that: The heat generating component is provided with a heat conducting plane, and the phase change material is attached to the heat conducting plane.

6. The heat dissipation assembly according to claim 2, characterized in that: The second temperature sensor and the phase change material are respectively located on two opposite surfaces of the heat generating component.

7. The heat dissipation assembly according to claim 1, characterized in that: It also includes a control circuit board, which is arranged on one of the heat dissipation fan, the phase change material or the heat generating component, and the control circuit board is electrically connected to the first temperature sensor and the heat dissipation fan respectively.

8. The heat dissipation assembly according to claim 5, characterized in that: A plurality of heat-conducting grooves are arranged on the heat-conducting plane, and the heat-conducting grooves are filled with the phase change material.

9. A display device, characterized in that: Comprising the heat dissipation assembly as described in any one of claims 1 to 8.

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