TWI429392B - Airflow guiding device - Google Patents

Description

Wind shield

The present invention relates to an air hood.

In order to meet the heat dissipation requirements, an electronic device, such as a servo, usually has an air hood mounted on the heat-generating electronic component or the heat sink, so that one end of the air hood is facing a fan to concentrate the heat generated by the electronic component. Discharge. However, due to the difference in height and volume of the electronic components that need to be dissipated, the flow distribution of the airflow through the electronic components changes greatly, thereby affecting the overall heat dissipation inside the system.

In view of the above, it is necessary to provide an air hood that can regulate the wind flow.

An air hood includes a main body portion, the main body portion includes a top wall, two opposite side walls, and a wind guiding passage defined by the top wall and the two side walls, the air guiding passage includes an air outlet, the two a first windshield and a second windshield are respectively pivotally connected to the side wall, and the first windshield and the second windshield are respectively provided with a plurality of ventilation holes, and the first The windshield and the second windshield have different opening areas, and the first wind deflector and the second windshield selectively block the air outlet fixed to the air guiding hood.

Compared with the prior art, the first wind deflector and the second wind deflector of the air hood can selectively block the air outlet fixed to the air hood, thereby generating an effect of regulating the wind flow.

10‧‧‧wind hood

20‧‧‧ Main body

21‧‧‧ top wall

23‧‧‧ side wall

231‧‧‧ Reception trough

233, 334, 434‧‧‧ pivoting

234, 316, 335, 416, 435‧‧‧ pivot holes

235‧‧‧ hook

25‧‧‧Guideway

251‧‧ vents

30‧‧‧First windshield

31, 41‧‧‧ board

312‧‧‧First ventilation hole

314, 352, 414, 452‧‧‧ pivot shaft

315‧‧‧ Groove

33, 43‧‧‧ pivoting parts

332, 432‧‧‧ pivot rod

35, 45‧‧‧ buckle

40‧‧‧second windshield

412‧‧‧second vent

1 is a perspective assembled view of a preferred embodiment of an air duct of the present invention.

Fig. 2 is an exploded perspective view of Fig. 1;

Figure 3 is an enlarged plan view showing the assembly of the first windshield of Figure 2;

Fig. 4 is another state diagram of Fig. 1.

Referring to FIG. 1 and FIG. 2 , a preferred embodiment of the air duct 10 of the present invention includes a main body portion 20 , a first wind deflector 30 , and a second wind deflector 40 .

The body portion 20 includes a top wall 21 and two opposite side walls 23. The top wall 21 and the two side walls 23 enclose an air guiding passage 25 . The air guiding passage 25 includes an air inlet (not shown) and an air outlet 251. Each of the side walls 23 defines a receiving groove 231 at an upper portion of the end adjacent to the air outlet 251. An upper portion of the outer side of each of the side walls 23 protrudes outwardly from the air outlet 251 to form two pivot portions 233 spaced apart from each other. Each pivoting portion 233 is provided with a pivot hole 234. An upper portion of the outer side of each of the side walls 23 protrudes away from the air outlet 251 to form two vertically spaced apart hooks 235.

The first wind deflector 30 includes a substantially rectangular plate body 31, a pivoting member 33 and a buckle 35. A plurality of first ventilation holes 312 are defined in the plate body 31 at intervals. The first end of the plate body 31 respectively protrudes from a pivot shaft 314 upward and downward. One side of the plate body 31 forms a recess 315 adjacent to the second end (opposite the first end). The upper and lower side walls of the recess 315 are respectively provided with a pivot hole 316 adjacent to the second end. The pivoting member 33 includes a pivoting lever 332 and two protruding pivoting portions 334 extending from the opposite ends of the pivoting lever 332 to the same side. Each pivoting portion 334 is provided with a pivot hole 335. The buckle 35 has a flat shape, and a pivot shaft 352 is respectively protruded from the upper and lower sides of one end.

The second wind deflector 40 includes a substantially rectangular plate body 41, a pivoting member 43 and a buckle 45. A plurality of second ventilation holes 412 are defined in the plate body 41. The number of the second ventilation holes 412 is greater than the number of the first ventilation holes 312 on the first windshield 30, and the area of each of the second ventilation holes 412. It is smaller than the area of the first ventilation hole 312 of the first wind deflector 30. The opening area of the second wind deflector 40 is smaller than the opening area of the first wind deflector 30. The first end of the plate body 41 respectively protrudes from a pivot shaft 414 upward and downward. One side of the plate body 41 is formed with a groove (not shown) adjacent to the second end (opposite the first end), and a pivot hole 416 is respectively disposed on the upper and lower sides of the groove. The pivoting member 43 includes a pivoting lever 432 and two pivoting portions 434 extending from the opposite ends of the pivoting lever 432 to the same side. Each pivoting portion 434 is provided with a pivot hole 435. The buckle 45 has a flat shape, and a pivot shaft 452 is respectively protruded from the upper and lower sides of one end.

Referring to FIG. 3 and FIG. 4 together, in the assembly, firstly, the two pivot shafts 314 of the plate body 31 of the first wind deflector 30 are respectively inserted into the two pivot holes 335 of the pivoting member 33 to make the plate body. 31 is pivotally connected to the pivoting member 33. The two pivoting shafts 352 of the buckle 35 are respectively inserted into the two pivot holes 316 of the plate body 31 to pivotally connect the buckle 35 to the plate body 31. The first windshield 30 is assembled. The two ends of the pivoting lever 332 of the pivoting member 33 of the first wind deflector 30 are respectively inserted into the pivot holes 234 of the two pivoting portions 233 on a side wall 23 of the main body portion 20, so that the first windshield The plate 30 is pivotally coupled to the side wall 23. Then, the two pivot shafts 414 of the plate body 41 of the second wind deflector 40 are respectively inserted into the two pivot holes 435 of the pivoting member 43 to pivotally connect the plate body 41 with the pivoting member 43. The two pivoting shafts 452 of the buckle 45 are respectively inserted into the two pivot holes 416 of the plate body 41 to pivotally connect the buckles 45 to the plate body 41. The second wind deflector 40 is assembled. The two ends of the pivoting rod 432 of the pivoting member 43 of the second wind deflector 40 are respectively inserted into the pivot holes 234 of the two pivoting portions 233 on the other side wall 23 of the main body portion 20, so that the second blocking member The wind panel 40 is pivotally coupled to the other side wall 23. The air hood 10 is assembled.

In use, the air hood 10 is installed in an electronic device, so that at least one electronic component (not shown) is received in the air hood 10, and a fan (not shown) is facing the wind guide. The air inlet of the cover 10. The cold air blown by the fan flows into the air hood 10 through the air inlet, flows through the electronic component, and dissipates heat from the electronic component, and then flows out from the air outlet 251 of the air hood 10.

When all the air outlets 251 of the air hood 10 need to be opened, the buckles 35 and 45 of the first and second windshields 30 and 40 are respectively received in the grooves of the corresponding plate bodies 31 and 41. The first and second windshields 30 and 40 are respectively rotated toward the corresponding side walls 23 of the main body portion 20. The hooks 235 on the two side walls 23 are outwardly opened, so that the plates 31 and 41 of the first and second windshields 30 and 40 are received between the two hooks 235 on the corresponding side walls 23. The hooks 235 are released, and the plates 31 and 41 and the buckles 35 and 45 of the first and second windshields 30 and 40 are clamped between the corresponding side walls 23 and the hooks 235.

According to the blocking condition of the electronic components in the air hood 10 and the heat dissipation requirement of the internal system of the electronic device, when it is required to intercept less airflow at the air outlet 251 of the air hood 10, the card is placed at the first The two hooks 235 of the wind deflector 30 are opened to rotate the first wind deflector 30 toward the air outlet 251 of the air guiding cover 10, and the plate body 31 of the first wind deflector 30 is pivoted relative to the air deflector 30. The piece 33 rotates. When the first windshield 30 is rotated to the end of the air hood 10 that is adjacent to the second windshield 40, the buckle 35 is opposite to the plate body 31. Rotate approximately 90 degrees. The first windshield 30 is further rotated, and the buckle 35 is inserted into the receiving groove 231 of the side wall 23 connected to the second wind deflector 40. At this time, the first wind deflector 30 is fixed to the air outlet 251 of the air duct 10 . Since the area of the first ventilation hole 312 on the first windshield 30 is large, more wind flow can be allowed to pass through the first wind shield 30.

According to the blocking of the air flow by the electronic components in the air hood 10 and the internal system of the electronic device When the airflow needs to be intercepted at the air outlet 251 of the air hood 10, the two hooks 235 of the second windshield 40 are pulled apart to make the second windshield The plate 40 is rotated toward the air outlet 251 of the air hood 10, and the plate body 41 of the second wind deflector 40 is rotated relative to the pivoting member 43. When the second wind deflector 40 is rotated to the end of the air deflector 10 that is adjacent to the first windshield 30, the buckle 45 is opposite to the panel 41. Rotate approximately 90 degrees. The second windshield 40 is further rotated, and the buckle 45 is inserted into the receiving groove 231 of the side wall 23 connected to the first wind deflector 30. At this time, the second wind deflector 40 is fixed to the air outlet 251 of the air duct 10 . Since the area of the second venting opening 412 on the second wind deflector 40 is small, only a small amount of wind can be allowed to pass through the second wind deflector 30. Through the blocking action of the first and second wind deflectors 30, 40 on the wind flow, the size of the wind flow flowing out of the air hood 10 can be controlled, so that the wind flow in the system is maintained in an ideal state.

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by persons skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims.

10‧‧‧wind hood

23‧‧‧ side wall

235‧‧‧ hook

251‧‧ vents

31‧‧‧ board

312‧‧‧First ventilation hole

33‧‧‧ pivoting parts

Claims (7)

An air hood includes a main body portion, the main body portion includes a top wall, two opposite side walls, and a wind guiding passage defined by the top wall and the two side walls, the air guiding passage includes an air outlet, the two The first end of the first windshield and the first end of the second windshield are respectively pivotally connected to the air outlet, and the first windshield and the second windshield are respectively opened a plurality of vent holes, and the first windshield and the second windshield have different opening areas, and the first wind deflector and the second wind deflector are selectively blocked from being fixed to the air hood a tuyere, when the first windshield is blocked from the air outlet of the air hood, the second end of the first wind deflector is buckled in the two side walls and is not pivotally connected to the first wind deflector a second side of the second wind deflector that is locked in the two side walls and not pivoted with the second wind deflector when the second wind deflector is blocked from the air outlet of the air hood Connected side walls. The air hood of the first aspect of the invention, wherein the first wind deflector and the second wind deflector comprise a plate body and a pivoting member, wherein the venting holes are respectively disposed on the corresponding plate body. The first ends of the two plates are respectively rotatably connected to the two pivoting members, and the two pivoting members are respectively rotatably connected to the adjacent air outlets of the two side walls. The windshield of claim 2, wherein an outer side of each side wall protrudes outwardly from the air outlet, and each pivot portion is provided with a pivot hole, and each pivot portion is provided with a pivot hole. A first end of a plate body respectively protrudes upwardly and downwardly from a pivoting shaft, and each of the pivoting members comprises a pivoting rod and two protruding pivoting portions extending from the pivoting rod to the same side The pivoting shafts of the first ends of the two plates are respectively rotatably connected to the pivoting holes of the corresponding pivoting portions of the two pivoting members, and the pivoting levers of the two pivoting members are rotatably connected to the two a pivot hole of the corresponding pivot portion of the side wall. The air hood of claim 2, wherein each side wall is adjacent to the air outlet Opening a receiving slot, the first wind deflector and the second end of the second wind deflector are respectively connected with a buckle, and the first wind deflector or the second wind deflector is fixed to the wind guide When the air outlet of the cover is engaged, the buckle of the first wind deflector or the second wind shield is engaged in the receiving groove of the corresponding side wall of the air guiding cover. The air hood of claim 4, wherein the two buckles are pivotally connected to the first wind deflector and the second wind deflector, respectively. The air hood of claim 5, wherein one side of the first wind deflector and the second wind deflector respectively form a recess for receiving the corresponding buckle at the adjacent second end. The windshield of claim 5, wherein each of the side walls is provided with two vertically spaced apart hooks, and the first wind deflector and the second wind deflector are respectively rotated to be in close contact with each other When the corresponding side walls are located, the hooks on the two side walls can be engaged with the corresponding first windshield or the second windshield plate body and the buckle.