HEAT DISSIPATION DEVICE AND WORKING METHOD THEREOF, DISPLAY DEVICE

• US 20170042062A1
• Filed: 09/11/2015
• Published: 02/09/2017
• 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
• Granted Patent: US 9,907,204 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• 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 at least one heat dissipation fan;

wherein the temperature monitoring unit is configured to monitor an environment temperature of each predetermined region of the display device;

the control unit is connected to the temperature monitoring unit, and is configured to determine regions to be cooled according to a monitoring result of the temperature monitoring unit and then send a control instruction to the movement unit;

the movement unit is connected to the control unit, and is configured to move the at least one heat dissipation fan to the regions to be cooled in response to the received control instruction;

the heat dissipation fan is 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 control unit comprises:

a comparison module, configured to compare 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;

a processing module, configured to determine 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;

configured to rank priorities of all the high-temperature regions according to the environment temperatures of the high-temperature regions and/or importance thereof and determine 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.

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

a mechanical arm, configured to move the at least one heat dissipation fan;

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

6. 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 block arranged on the guide rail and corresponding to the at least one heat dissipation fan in a one-to-one manner;

wherein the at least one heat dissipation fan is fixed at the corresponding sliding block; and

an electric motor configured to drive the at least one sliding block to move.

8. A working method of the heat dissipation device according to claim 1, comprising:

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

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

moving by the movement unit, the at least one heat dissipation fan to the regions to be cooled in response to the received control instruction.

9. The working method according to claim 8, wherein the step of determining regions to be cooled according to a monitoring result of the temperature monitoring unit by the control unit 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;

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.

10. The working method according to claim 8, wherein the movement unit comprises a mechanical arm configured to move the at least one heat dissipation fan, and an electric motor configure to drive the mechanical arm to move;

wherein the step of moving by the movement unit the at least one heat dissipation fan to the regions to be cooled in response to the received control instruction comprises;

driving by the electric motor, the mechanical arm to move and then moving the at least one heat dissipation fan to the regions to be cooled by the mechanical arm.

16. The method according to claim 8, wherein the movement unit comprises:

a guide rail running through all the predetermined regions;

at least one sliding block arranged on the guide rail and corresponding to the at least one heat dissipation fan in a one-to-one manner;

wherein the at least one heat dissipation fan is fixed at the corresponding sliding block; and

an electric motor configured to drive the at least one sliding block to move;

wherein the step of moving by the movement unit the at least one heat dissipation fan to the regions to be cooled in response to the received control instruction comprises;

driving by the electric motor, the at least one sliding block to move and then moving the at least one heat dissipation fan fixed at the at least one sliding block to the regions to be cooled.

17. The working method according to claim 8, wherein the temperature monitoring unit comprises a plurality of temperature sensors corresponding to the predetermined regions in a one-to-one manner.

18. The working method according to claim 8, wherein the temperature monitoring unit and the control unit are connected to each other via a general input/output interface.

7. 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 at least one heat dissipation fan;

wherein the temperature monitoring unit is configured to monitor an environment temperature of each predetermined region of the display device;

the control unit is connected to the temperature monitoring unit, and is configured to determine regions to be cooled according to a monitoring result of the temperature monitoring unit and then send a control instruction to the movement unit;

the movement unit is connected to the control unit, and is configured to move the at least one heat dissipation fan to the regions to be cooled in response to the received control instruction;

the heat dissipation fan is connected to the movement unit.

11. The display device 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.

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

13. The display device according to claim 7, wherein the control unit comprises:

a comparison module, configured to compare 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;

a processing module, configured to determine 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;

configured to rank priorities of all the high-temperature regions according to the environment temperatures of the high-temperature regions and/or importance thereof and determine 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.

14. The display device according to claim 7, wherein the movement unit comprises:

a mechanical arm, configured to move the at least one heat dissipation fan;

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

15. The display device according to claim 7, wherein the movement unit comprises:

a guide rail running through all the predetermined regions;

at least one sliding block arranged on the guide rail and corresponding to the at least one heat dissipation fan in a one-to-one manner;

wherein the at least one heat dissipation fan is fixed at the corresponding sliding block; and

an electric motor configured to drive the at least one sliding block to move.