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CN-116017929-B - Electronic device

CN116017929BCN 116017929 BCN116017929 BCN 116017929BCN-116017929-B

Abstract

The invention relates to an electronic device, which comprises a back frame, a first heat source, a second heat source, a guide piece and a fan. The first heat source is arranged on the first side of the back frame, the second heat source is arranged on the second side of the back frame, the guide piece is arranged on the second side of the back frame, and the fan is arranged corresponding to the guide piece. Wherein at least a portion of an airflow path is formed between the first heat source and the second heat source.

Inventors

  • JIAN LIANCHENG
  • FENG SHIYUAN
  • CHEN YONGGAN

Assignees

  • 群创光电股份有限公司

Dates

Publication Date
20260508
Application Date
20211021

Claims (8)

  1. 1. An electronic device, comprising: A back frame; The first heat sources are arranged on a first side of the back frame and are arranged in an extending mode; The second heat source is arranged on a second side of the back frame; a guide member disposed on the second side of the back frame, and A fan corresponding to the guide piece; Wherein at least a portion of an airflow path is formed between the first heat source and the second heat source; The electronic device further comprises a plate cover arranged above the second heat source; a gap is arranged between the plate cover and the second heat source, and the gap is a part of the airflow path; the electronic device also comprises a diffusion plate, wherein a space is arranged between the first heat source and the diffusion plate, and when the fan operates, air flows between the diffusion plate and the first heat source; Wherein the electronic device is a backlight device.
  2. 2. The electronic device of claim 1, wherein the first heat source comprises at least one light emitting source.
  3. 3. The electronic device of claim 1, wherein the guide is a fin-type heat sink or a fan support, wherein the fan support has at least one opening facing the second heat source.
  4. 4. The electronic device of claim 1, wherein at least a portion of the second heat source is disposed over the guide.
  5. 5. The electronic device of claim 1, further comprising a second guide and a heat pipe, the second guide being disposed adjacent to the guide, and the heat pipe being disposed above the second guide.
  6. 6. The electronic device of claim 1, further comprising a second guide disposed adjacent to the guide, wherein the second guide comprises a groove.
  7. 7. The electronic device of claim 1, wherein the back frame has at least one through hole, and the fan is adjacent to the through hole.
  8. 8. The electronic device of claim 7, wherein the fan is configured to draw air from the aperture.

Description

Electronic device Technical Field The present invention relates to an electronic device, and more particularly to an electronic device with improved heat dissipation. Background In recent years, in order to achieve a display effect with high contrast, an electronic device such as a display apparatus may need to increase the brightness of the backlight device, but the power consumed by the light emitting source and/or the circuit board of the backlight module is increased, which results in an increase in the temperature of the backlight device. However, the existing heat dissipation mechanism of the display device cannot effectively solve the problem. Accordingly, an electronic device is needed to improve the above-mentioned problems. Disclosure of Invention The invention provides an electronic device which is characterized by comprising a back frame, a first heat source, a second heat source, a guide piece and a fan. The first heat source is arranged on a first side of the back frame. The second heat source comprises a circuit board, wherein the circuit board is arranged on a second side of the back frame. The guide is disposed on the second side of the back frame. The fan is disposed corresponding to the guide. Wherein at least a portion of an airflow path is formed between the first heat source and the second heat source. Other novel features of the invention will become apparent from the following detailed description of the invention when considered in conjunction with the drawings. Drawings Fig. 1 is a schematic diagram of an electronic device according to an embodiment of the invention. FIG. 2 shows a partial cross-sectional view of an embodiment of the electronic device of FIG. 1 at section A-A'. Fig. 3 shows a partial cross-sectional view of another embodiment of the electronic device of fig. 1 at section A-A'. Fig. 4 shows a partial cross-sectional view of another embodiment of the electronic device of fig. 1 at section A-A'. Fig. 5A shows a partial cross-sectional view of another embodiment of the electronic device of fig. 1 at section A-A'. FIG. 5B shows a partial side view of the embodiment of FIG. 5A corresponding to section B-B' of FIG. 1. Fig. 6 shows a partial cross-sectional view of another embodiment of the electronic device of fig. 1 at section A-A'. Fig. 7 is a schematic diagram of an electronic device according to another embodiment of the invention. FIG. 8 is a schematic cross-sectional view of an embodiment of the electronic device of FIG. 7 taken along line A-A'. Fig. 9 shows a schematic cross-sectional view of another embodiment of the electronic device of fig. 7 taken along line A-A'. FIG. 10 shows a schematic cross-sectional view of another embodiment of the electronic device of FIG. 7 taken along line A-A'. FIG. 11 shows a schematic cross-sectional view of another embodiment of the electronic device of FIG. 7 taken along line A-A'. Fig. 12 is a schematic view of an electronic device according to another embodiment of the invention. FIG. 13 is a schematic cross-sectional view of an embodiment of the electronic device of FIG. 12 taken along line C-C'. Fig. 14 is a schematic view of an electronic device according to another embodiment of the invention. FIG. 15 shows a schematic cross-sectional view of another embodiment of the electronic device of FIG. 14 taken along line C-C'. 1. Electronic device 2. Back frame 2A first side of the back frame 2B second side of the back frame 2C end of back frame 3. First heat source 31. Luminous source 32. Circuit carrier plate 4. Second heat source 40. Circuit board First side of 4a circuit board 41. Electronic assembly 5. Guide piece First side of 5a guide Second side of 5b guide Edge of 5c guide 501. Flow channel of guide 52. A second opening 53. A third opening 54. Fourth opening 6. Fan with fan body 7. Support member 8. Second guide 81. Flow passage of second guide member 82. Groove 9. Heat pipe 10. Board cover 101. A first opening 11. Diffusion plate 12. Rubber frame 13. Dimming device 14. Fan with fan body 15. Fan support H1 Thickness of guide H2 Thickness of the second guide 21. First perforation 22. Second perforation 23. Fourth perforation 24. Fifth perforation 33. Third perforation 34. Spacing of 35. Second interval 36. Third interval Part of the R-gas flow path 2F end of back frame End of 2d back frame Detailed Description The following examples are provided to clearly demonstrate the above and other technical contents, features and/or effects of the present invention when read in conjunction with the accompanying drawings. The technical means and effects adopted by the present invention will be further understood by the description of the specific embodiments, so as to achieve the above-mentioned objects. Furthermore, since the disclosure of the present invention should be readily understood and can be practiced by those skilled in the art, all equivalent substitutions or modifications that do not depart from the spirit of the inventio