CN212337717U - Centrifugal fan frame structure - Google Patents
Centrifugal fan frame structure Download PDFInfo
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- CN212337717U CN212337717U CN202021878450.8U CN202021878450U CN212337717U CN 212337717 U CN212337717 U CN 212337717U CN 202021878450 U CN202021878450 U CN 202021878450U CN 212337717 U CN212337717 U CN 212337717U
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- 230000017525 heat dissipation Effects 0.000 abstract description 7
- 230000003014 reinforcing effect Effects 0.000 description 7
- 238000001816 cooling Methods 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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Abstract
本实用新型提供一种离心风扇框体结构，包含：一下壳体、一盖体；该下壳体具有一底部及一外壁部，该外壁部垂直环设于底部的周缘，并且该外壁部开设有一出风口；该盖体具有一上侧及一下侧及一入风口，该入风口贯穿该盖体的上、下侧，该盖体与该下壳体对应盖合形成一空间，所述出风口通过该空间与该入风口相连通，并且该空间内的该下壳体与该盖体两者之间具有一第一距离高度，该下壳体与该盖体两者间位于该出风口处具有一第二距离高度，所述第二距离高度大于该第一距离高度，通过增大该出风口的高度避免被与其搭配的散热元件(模块)阻挡出风，进而可提升流场效率与降低噪音。
The utility model provides a centrifugal fan frame structure, comprising: a lower shell body and a cover body; the lower shell body has a bottom and an outer wall portion, the outer wall portion is vertically arranged on the periphery of the bottom, and the outer wall portion is provided with an air outlet; the cover body has an upper side and a lower side and an air inlet, the air inlet penetrates the upper and lower sides of the cover body, the cover body and the lower shell body are correspondingly covered to form a space, the air outlet is connected with the air inlet through the space, and there is a first distance height between the lower shell body and the cover body in the space, and there is a second distance height between the lower shell body and the cover body at the air outlet, the second distance height is greater than the first distance height, and the height of the air outlet is increased to avoid being blocked by the heat dissipation element (module) matched with it, thereby improving the flow field efficiency and reducing the noise.
Description
Technical Field
The present invention relates to a centrifugal fan frame structure, and more particularly to a centrifugal fan frame structure capable of improving fan noise and improving structural strength of a fan casing.
Background
The internal space of the traditional notebook computer is narrow, and the heat source is arranged at the center to easily generate heat accumulation, so that a common manufacturer guides heat to the side air outlet by arranging the heat pipe, and then the heat guided by the heat pipe is taken away from the internal space by the fan to achieve the purpose of cooling.
The existing notebook computer cooling fan module has the advantages that the distance between the heat pipe and the C/D piece of the notebook computer casing is only 0.8-0.9 mm, the surface temperature of the notebook computer is overhigh due to heat radiation to the C/D piece, and the use experience of consumers is poor, the original fan structure design is that the height of the upper cover (or the bottom plate) of the fan casing is almost the same as that of the heat pipe, the help for reducing the surface temperature of the notebook computer is limited, the height of the airflow boundary is completely the same as that of the heat pipe, resistance exists at the air outlet of the fan, and noise problems are caused (the position of the fan is usually at the left side and the right side and is close to the operation areas of two hands and two legs), so a user easily feels that the surface temperature of the electricity is overhigh, the high heat generated at the air outlet also causes the heat generation at the bottom of the notebook computer, discomfort is generated when the user touches, and because the heat pipe, the cooling (heat conduction) elements or The air outlet of the fan is not only capable of causing the air outlet or flow field efficiency of the fan, but also prone to generate noise and poor heat dissipation effect, so how to improve the existing defects is the first goal of the present disclosure.
SUMMERY OF THE UTILITY MODEL
Accordingly, to effectively solve the above problems, the present invention provides a fan housing with an increased height of an air outlet, thereby increasing the smoothness of the fan flow and preventing the air flow from striking the heat conduction element.
To achieve the above object, the present invention provides a centrifugal fan frame structure, which comprises:
the lower shell is provided with a bottom and an outer wall part, the outer wall part is vertically and circularly arranged on the periphery of the bottom, and the outer wall part is provided with an air outlet;
the cover body is provided with an upper side, a lower side and an air inlet, the air inlet penetrates through the upper side and the lower side of the cover body, the cover body and the lower shell are correspondingly covered to form a space, the air outlet is communicated with the air inlet through the space, a first distance height is formed between the lower shell and the cover body in the space, a second distance height is formed between the lower shell and the cover body and is positioned at the air outlet, and the second distance height is larger than the first distance height.
The centrifugal fan frame structure, wherein: the lower shell is vertically provided with a shaft cylinder, a stator is sleeved outside the shaft cylinder, a bearing is contained inside the shaft cylinder, a rotor group is provided with an axis and a fan wheel hub, the axis is vertically connected with the fan wheel hub, the rotor is pivoted with the bearing through the axis, and a plurality of blades extend outside the fan wheel hub.
The centrifugal fan frame structure, wherein: the reinforced rib part on the cover body is formed by stamping, and the reinforced rib part is formed by the lower side of the cover body protruding to the upper side, and the height of the air outlet is enlarged to form the second distance height.
The centrifugal fan frame structure, wherein: the reinforced rib of the lower shell is formed by stamping, and the reinforced rib is formed by the bottom of the lower shell protruding to the other side, and the height of the air outlet is enlarged to form the second distance height.
The centrifugal fan frame structure, wherein: the air outlet is provided with at least one reinforced rib part which is arranged on the lower shell and/or the cover body and extends to the air outlet horizontally.
The centrifugal fan frame structure, wherein: the heat pipe is arranged at the air outlet correspondingly to the fin group, and the height of the heat pipe overlapped with the fin group is lower than the second distance height of the air outlet.
The centrifugal fan frame structure, wherein: the air outlet is formed by the nonlinear expansion or linear gradual expansion of the first distance height to the second distance height.
Through the utility model discloses increase the height of air outlet department, can prevent effectively that this air outlet department from blockking by other components (heat radiating element or heat conducting element), and make this air outlet produce deficiencies such as radiating efficiency reduction or incapability and exit noise.
Drawings
Fig. 1 is an exploded perspective view of a first embodiment of a centrifugal fan frame structure according to the present invention;
fig. 2 is a sectional view of a first embodiment of a centrifugal fan frame structure according to the present invention;
fig. 3a is an exploded perspective view of a second embodiment of the centrifugal fan frame structure of the present invention;
fig. 3b is a perspective combination view of a second embodiment of the centrifugal fan frame structure of the present invention;
fig. 4a is an exploded perspective view of a third embodiment of the centrifugal fan frame structure of the present invention;
fig. 4b is a perspective combination view of a third embodiment of the centrifugal fan frame structure of the present invention;
fig. 5 is a first schematic view of a fourth embodiment of the centrifugal fan frame structure of the present invention;
fig. 6 is a second schematic view of a fourth embodiment of the centrifugal fan frame structure of the present invention;
fig. 7 is a third schematic view of a fourth embodiment of the centrifugal fan frame structure of the present invention.
Description of reference numerals: a lower case 11; a bottom 111; an outer wall portion 112; an air outlet 113; a shaft barrel 114; a stator 115; a bearing 116; an axis 1161; a fan wheel hub 1162; a blade 1163; a lid 12; an upper side 121; a lower side 122; an air inlet 123; a reinforcing rib 13; a space 14; a heat dissipation module 2; a heat pipe 21; a set of fins 22; a base 23; a heat generating source 3; case C4; case D5; a second distance height H; the first distance height h.
Detailed Description
The above objects, together with the structure and functional characteristics of the invention, will be best understood from the following description of the preferred embodiments when read in connection with the accompanying drawings.
Referring to fig. 1 and fig. 2, a three-dimensional exploded and sectional view of a first embodiment of a frame structure of a centrifugal fan of the present invention includes: a lower housing 11, a cover 12;
the lower housing 11 has a bottom 111 and an outer wall 112, the outer wall 112 vertically surrounds the periphery of the bottom 111, and the outer wall 112 is opened with an air outlet 113.
The cover 12 has an upper side 121, a lower side 122 and an air inlet 123, the air inlet 123 penetrates through the upper and lower sides 121, 122 of the cover, the cover 12 and the lower housing 11 correspondingly cover to form a space 14, the air outlet 113 is communicated with the air inlet 123 through the space 14, a first distance height H is provided between the lower housing 11 and the cover 12 in the space 14, a second distance height H is provided between the lower housing 11 and the cover 12 at the air outlet 113, the second distance height H is greater than the first distance height H, and the air outlet 113 can be formed by expanding the first distance height H to the second distance height H in a non-linear manner.
The main current shortcoming of improving of present case lies in: when the air outlet of the centrifugal fan is assembled with the heat dissipating elements (heat dissipating fins) or the heat conducting elements (heat pipes), because the air outlet of the centrifugal fan is blocked by the heat pipes and the heat dissipating fins, the air outlet efficiency of the centrifugal fan is affected, and noise is generated at the air outlet, by increasing the second distance height H of the air outlet 113, and adopting the second distance height H slightly higher than the height of the heat dissipating elements (heat dissipating fins) or the heat conducting elements (heat pipes) or the height after the two are stacked, the air outlet efficiency of the centrifugal fan is forced to discharge 113 air is increased without being blocked by the heat dissipating elements (heat dissipating fins) or the heat conducting elements (heat pipes), and noise generation caused by the blocking of the air outlet 113 by the heat dissipating elements (heat dissipating fins) or the heat conducting elements (heat pipes) can be prevented.
Please refer to fig. 3a, fig. 3b, fig. 4a, and fig. 4b, which are exploded and assembled views of a second embodiment and a third embodiment of a centrifugal fan frame structure of the present invention, as shown in the figures, part of the structure of the second embodiment is the same as that of the first embodiment, and will not be described herein again, but the difference between the second embodiment and the first embodiment is that the second embodiment further has at least one reinforcing rib 13, the reinforcing rib 13 is selectively disposed on either or both of the lower housing 11 or the cover 12, the reinforcing rib 13 is mainly formed by protruding or recessing the bottom 111 of the lower housing 11 (see fig. 4a and fig. 4b) or the lower side 122 of the cover 12 (see fig. 3a and fig. 3b) to form a rib structure, the reinforcing rib 13 is formed by punching, and the reinforcing rib 13 is formed by protruding the lower side 122 of the cover 12 to the upper side 121, or the reinforced rib part may be formed by stamping the lower case, and formed by the bottom of the lower case protruding to the other side, and the reinforced rib part 13 further enhances the structural strength of the lower case 11 and the cover 12.
In the second embodiment, the reinforcing rib 13 disposed near the air outlet 113 further extends to the air outlet 113, so as to increase the height of the air outlet 113, and simultaneously increase the height of the air outlet 113 to form the second distance height H, such that the second distance height H is greater than the first distance height H.
Please refer to fig. 5, 6, and 7, which are schematic views illustrating a fourth embodiment of a frame structure of a centrifugal fan of the present invention, as shown in the figures, part of the structure of the present embodiment is the same as that of the first embodiment, and therefore will not be described herein again, but the present embodiment is different from the first embodiment in that a shaft cylinder 114 is further vertically disposed on the lower housing 11, a stator 115 is sleeved outside the shaft cylinder 114, and a bearing 116 is disposed inside the shaft cylinder 114.
A rotor set 116 has an axis 1161 and a fan hub 1162, the axis 1161 is perpendicular to the fan hub 1162, the rotor set is pivoted to the bearing 116 through the axis 1161, and a plurality of blades 1163 extend outside the fan hub 1162.
The present embodiment further includes a heat dissipation module 2, the heat dissipation module 2 has at least one heat pipe 21, a fin set 22 and a base 23, the base 23 is correspondingly contacted with a heat source 3 to conduct heat, one end of the heat pipe 21 is connected to the base 23, the other end is connected to the fin set 22, and is correspondingly disposed at the air outlet 113 with respect to the fin set 22, and the heat pipe 21 is lower than a second distance height H at the air outlet 113.
Referring to fig. 3a, 3b, 4a and 4b, the reinforced rib 13 is mainly used to reinforce the structural strength of the lower casing 11 or the upper cover 12 and is abutted against the C, D pieces 4 and 5 of the notebook computer, the present embodiment further discloses that the present invention mainly combines the reinforced rib 13, which is used to reinforce the structural strength of the fan, on the lower casing 11 or the cover 12 of the fan with the air outlet 113, and the reinforced rib 13 increases the height of the air outlet 113, thereby improving the heat transfer efficiency reduction and the noise at the air outlet caused by the blocking of the air outlet 113 by the heat dissipation element or the heat conduction element.
The reinforced rib 13 of the present invention further increases the space between C, D pieces 4 and 5 of the notebook computer, so that the air flow guided by the fan outlet 113 can flow between C, D pieces 4 and 5 of the notebook computer and the heat dissipation element (fin set) or the heat conduction element (heat pipe), thereby increasing the cooling air flow of the notebook computer, and avoiding the heat accumulation in a specific area.
Claims (7)
1. A centrifugal fan frame structure, comprising:
the lower shell is provided with a bottom and an outer wall part, the outer wall part is vertically and circularly arranged on the periphery of the bottom, and the outer wall part is provided with an air outlet;
the cover body is provided with an upper side, a lower side and an air inlet, the air inlet penetrates through the upper side and the lower side of the cover body, the cover body and the lower shell are correspondingly covered to form a space, the air outlet is communicated with the air inlet through the space, a first distance height is formed between the lower shell and the cover body in the space, a second distance height is formed between the lower shell and the cover body and is positioned at the air outlet, and the second distance height is larger than the first distance height.
2. The centrifugal fan frame structure of claim 1, wherein: the lower shell is vertically provided with a shaft cylinder, a stator is sleeved outside the shaft cylinder, a bearing is contained inside the shaft cylinder, a rotor group is provided with an axis and a fan wheel hub, the axis is vertically connected with the fan wheel hub, the rotor is pivoted with the bearing through the axis, and a plurality of blades extend outside the fan wheel hub.
3. The centrifugal fan frame structure of claim 1, wherein: the reinforced rib part on the cover body is formed by stamping, and the reinforced rib part is formed by the lower side of the cover body protruding to the upper side, and the height of the air outlet is enlarged to form the second distance height.
4. The centrifugal fan frame structure of claim 1, wherein: the reinforced rib of the lower shell is formed by stamping, and the reinforced rib is formed by the bottom of the lower shell protruding to the other side, and the height of the air outlet is enlarged to form the second distance height.
5. The centrifugal fan frame structure of claim 1, wherein: the air outlet is provided with at least one reinforced rib part which is arranged on the lower shell and/or the cover body and extends to the air outlet horizontally.
6. The centrifugal fan frame structure of claim 1, wherein: the heat pipe is arranged at the air outlet correspondingly to the fin group, and the height of the heat pipe overlapped with the fin group is lower than the second distance height of the air outlet.
7. The centrifugal fan frame structure of claim 1, wherein: the air outlet is formed by the nonlinear expansion or linear gradual expansion of the first distance height to the second distance height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021878450.8U CN212337717U (en) | 2020-09-01 | 2020-09-01 | Centrifugal fan frame structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021878450.8U CN212337717U (en) | 2020-09-01 | 2020-09-01 | Centrifugal fan frame structure |
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| Publication Number | Publication Date |
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| CN212337717U true CN212337717U (en) | 2021-01-12 |
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| CN202021878450.8U Active CN212337717U (en) | 2020-09-01 | 2020-09-01 | Centrifugal fan frame structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111963480A (en) * | 2020-09-01 | 2020-11-20 | 奇鋐科技股份有限公司 | Frame structure of centrifugal fan |
| JP2022152041A (en) * | 2021-03-29 | 2022-10-12 | Ｎｅｃパーソナルコンピュータ株式会社 | Fan module for portable information processing device and portable information processing device |
| US11512711B2 (en) | 2020-09-18 | 2022-11-29 | Asia Vital Components Co., Ltd. | Centrifugal fan frame body structure |
-
2020
- 2020-09-01 CN CN202021878450.8U patent/CN212337717U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111963480A (en) * | 2020-09-01 | 2020-11-20 | 奇鋐科技股份有限公司 | Frame structure of centrifugal fan |
| CN111963480B (en) * | 2020-09-01 | 2023-08-18 | 奇鋐科技股份有限公司 | Centrifugal fan frame structure |
| US11512711B2 (en) | 2020-09-18 | 2022-11-29 | Asia Vital Components Co., Ltd. | Centrifugal fan frame body structure |
| JP2022152041A (en) * | 2021-03-29 | 2022-10-12 | Ｎｅｃパーソナルコンピュータ株式会社 | Fan module for portable information processing device and portable information processing device |
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