Heat dissipation device and working method thereof, display device

• US 9,907,204 B2
• Filed: 09/11/2015
• Issued: 02/27/2018
• Est. Priority Date: 03/31/2015
• Status: Active Grant

• Current Assignee: Beijing Boe Multimedia Technology Co., Ltd. (BOE Technology Group Co., Ltd.), BOE Technology Group Co., Ltd.
• Original Assignee: Beijing Boe Multimedia Technology Co., Ltd. (BOE Technology Group Co., Ltd.), BOE Technology Group Co., Ltd.
• Inventors: Guo, Naijia, He, Jianzi
• Primary Examiner(s): Norton, Jennifer L
• Application Number:
  US14/910,850
• Publication Number:
  US 20170042062A1
• Time in Patent Office: 900 Days
• CPC Class Codes: H05K 5/0017 with operator interface units
• CPC Class Codes: H05K 7/20136 Forced ventilation, e.g. by fans H05K7/202 takes precedence
• CPC Class Codes: H05K 7/20209 Thermal management, e.g. fan control
• CPC Class Codes: H05K 7/20927 Liquid coolant without phase change

Abstract

The present disclosure provides a heat dissipation device, a working method thereof and a display device. The heat dissipation device is applied to a display device, including a temperature monitoring unit, configured to monitor an environment temperature of each predetermined region of the display device; a control unit, connected to the temperature monitoring unit, configured to determine regions to be cooled according to a monitoring result of the temperature monitoring unit and then send a control instruction to a movement unit; the movement unit, connected to the control unit, and configured to move at least one heat dissipation fan to the regions to be cooled in response to the received control instruction; and the at least one heat dissipation fan connected to the movement unit.

Claims

1. A heat dissipation device, applied to a display device, comprising a temperature monitoring unit, a control unit, a movement unit, and a plurality of heat dissipation fans, wherein:

the temperature monitoring unit monitors an environment temperature of each predetermined region of the display device;

the control unit is connected to the temperature monitoring unit, and determines to-be-cooled regions according to a monitoring result of the temperature monitoring unit and then send a control instruction to the movement unit, wherein the control unit determines the to-be-cooled regions by;

comparing the environment temperatures of the predetermined regions detected by the temperature monitoring unit with a predetermined threshold value, and determine the predetermined regions of which the environment temperatures are higher than the predetermined threshold value as high-temperature regions;

determining all the high-temperature regions as the to-be-cooled regions when an amount of the high-temperature regions is not larger than an amount M of the plurality of heat dissipation fans; and

ranking priorities of all the high-temperature regions according to the environment temperatures of the high-temperature regions and/or importance thereof and determine M high-temperature regions with highest priority as the to-be-cooled regions when the amount of the high-temperature regions is larger than the amount M of the plurality of heat dissipation fans;

the movement unit is connected to the control unit, and moves the plurality of heat dissipation fans to the to-be-cooled regions to be cooled in response to the control instruction; and

the plurality of heat dissipation fans are connected to the movement unit.

2. The heat dissipation device according to claim 1, wherein the temperature monitoring unit comprises a plurality of temperature sensors corresponding to the predetermined regions in a one-to-one manner.

3. The heat dissipation device according to claim 1, wherein the temperature monitoring unit and the control unit are connected to each other via a general input/output interface.

4. The heat dissipation device according to claim 1, wherein the movement unit comprises:

a mechanical arm, configured to move the plurality of heat dissipation fans to the to-be-cooled regions; and

an electric motor, configure to drive the mechanical arm to move.

5. The heat dissipation device according to claim 1, wherein the movement unit comprises:

a guide rail running through all the predetermined regions;

at least one sliding blocks arranged on the guide rail and corresponding to the plurality of heat dissipation fans in a one-to-one manner;

wherein the plurality of heat dissipation fans are fixed at the corresponding sliding blocks, respectively; and

an electric motor configured to drive the sliding blocks to move.

16. The heat dissipation device according to claim 1, further comprising a wind-path structure arranged at a wind outlet side of each of the plurality of heat dissipation fans.

17. The heat dissipation device according to claim 16, wherein the wind-path structure comprises block slices arranged at two sides of the wind outlet side of each of the plurality of heat dissipation fans.

6. A display device, comprising a heat dissipation device, wherein:

the heat dissipation device comprises a temperature monitoring unit, a control unit, a movement unit, and a plurality of heat dissipation fans;

the temperature monitoring unit monitors an environment temperature of each predetermined region of the display device;

the control unit is connected to the temperature monitoring unit, and determines to-be-cooled regions according to a monitoring result of the temperature monitoring unit and then send a control instruction to the movement unit, wherein the control unit determines the to-be-cooled regions by;

comparing the environment temperatures of the predetermined regions detected by the temperature monitoring unit with a predetermined threshold value, and determine the predetermined regions of which the environment temperatures are higher than the predetermined threshold value as high-temperature regions;

determining all the high-temperature regions as the to-be-cooled regions when an amount of the high-temperature regions is not larger than an amount M of the plurality of heat dissipation fans; and

ranking priorities of all the high-temperature regions according to the environment temperatures of the high-temperature regions and/or importance thereof and determine M high-temperature regions with highest priority as the to-be-cooled regions when the amount of the high-temperature regions is larger than the amount M of the plurality of heat dissipation fans;

the movement unit is connected to the control unit, and moves the plurality of heat dissipation fans to the to-be-cooled regions in response to the control instruction; and

the plurality of heat dissipation fans are connected to the movement unit.

9. The display device according to claim 6, wherein the temperature monitoring unit comprises a plurality of temperature sensors corresponding to the predetermined regions in a one-to-one manner.

10. The display device according to claim 6, wherein the temperature monitoring unit and the control unit are connected to each other via a general input/output interface.

11. The display device according to claim 6, wherein the movement unit comprises:

a mechanical arm, configured to move the plurality of heat dissipation fans to the to-be-cooled regions; and

an electric motor, configure to drive the mechanical arm to move.

12. The display device according to claim 6, wherein the movement unit comprises:

a guide rail running through all the predetermined regions;

sliding blocks arranged on the guide rail and corresponding to the plurality of heat dissipation fans in a one-to-one manner;

wherein the plurality of heat dissipation fans are fixed at the corresponding sliding blocks, respectively; and

an electric motor configured to drive the sliding blocks to move.

18. The display device according to claim 6, further comprising a wind-path structure arranged in each of the plurality of heat dissipation fans.

19. The display device according to claim 18, wherein the wind-path structure comprises block slices arranged at two sides of a wind outlet side of each of the plurality of heat dissipation fans.

7. A working method of a heat dissipation device, the heat dissipation device including a temperature monitoring unit, a control unit, a movement unit and a plurality of heat dissipation fans, the control unit being connected to the temperature monitoring unit, the movement unit being connected to the control unit, and the plurality of heat dissipation fans being connected to the movement unit, the working method comprising:

monitoring by the temperature monitoring unit, an environment temperature of each predetermined region of a display device;

determining by the control unit, to-be-cooled regions according to a monitoring result of the temperature monitoring unit and then sending a control instruction to the movement unit, wherein the step of determining the to-be-cooled regions comprises;

comparing the environment temperatures of the predetermined regions detected by the temperature monitoring unit with a predetermined threshold value, and determining the predetermined regions of which the environment temperatures are higher than the predetermined threshold value as high-temperature regions;

determining all the high-temperature regions as the regions to-be-cooled when an amount of the high-temperature regions is not larger than an amount M of the at least one heat dissipation fan; and

ranking priorities of all the high-temperature regions according to the environment temperatures of the high-temperature regions and/or importance thereof and determining the M high-temperature regions with the highest priorities as the regions to-be-cooled when the amount of the high-temperature regions is larger than the amount M of the at least one heat dissipation fan; and

moving by the movement unit, the plurality of heat dissipation fans to the to-be-cooled regions in response to the control instruction.

8. The working method according to claim 7, wherein the movement unit comprises a mechanical arm configured to move the plurality of heat dissipation fans, and an electric motor configure to drive the mechanical arm to move;

wherein the moving by the movement unit the plurality of heat dissipation fans to the to-be-cooled regions in response to the control instruction comprises;

driving by the electric motor, the mechanical arm to move and then moving the plurality of heat dissipation fans to the to-be-cooled regions by the mechanical arm.

13. The method according to claim 7, wherein the movement unit comprises:

a guide rail running through all the predetermined regions;

sliding blocks arranged on the guide rail and corresponding to the plurality of heat dissipation fans in a one-to-one manner;

wherein the plurality of heat dissipation fans are fixed at the corresponding sliding blocks, respectively; and

an electric motor configured to drive the sliding blocks to move,

wherein the moving by the movement unit the plurality of heat dissipation fans to the to-be-cooled regions in response to the control instruction comprises;

driving by the electric motor, the sliding blocks to move and then moving the plurality of heat dissipation fans fixed at the sliding blocks to the to-be-cooled regions.

14. The working method according to claim 7, wherein the temperature monitoring unit comprises a plurality of temperature sensors corresponding to the predetermined regions in a one-to-one manner.

15. The working method according to claim 7, wherein the temperature monitoring unit and the control unit are connected to each other via a general input/output interface.