CN114810626A - Electrical apparatus with special heat dissipation unit - Google Patents
Electrical apparatus with special heat dissipation unit Download PDFInfo
- Publication number
- CN114810626A CN114810626A CN202210552390.8A CN202210552390A CN114810626A CN 114810626 A CN114810626 A CN 114810626A CN 202210552390 A CN202210552390 A CN 202210552390A CN 114810626 A CN114810626 A CN 114810626A
- Authority
- CN
- China
- Prior art keywords
- arc
- tongue
- heat dissipation
- outlet end
- dissipation unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/16—Centrifugal pumps for displacing without appreciable compression
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/422—Discharge tongues
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
本发明公开了一种具有特殊散热单元的电器装置，散热单元用于对发热部件进行散热，散热单元的离心式风扇其包括壳体(1)、叶轮(2)，壳体包括底板(3)、盖板(4)、侧板(5)，侧板的靠近出口端面的一端具有舌部；所述舌部(7,8)包括第一舌部(7)、第二舌部(8)，第一舌部、第二舌部相对设置且分别位于出口端面(31)的两侧；所述第一舌部(7)包括第一弧形部(9)、第二弧形部(10)，第一弧形部、第二弧形部依次连接设置，第一弧形部的邻近叶片外周的一侧面具有多个第一凹部(11)，多个第一凹部呈阵列式布置。所述散热单元的离心式风扇其通过舌部结构的设计能够减少舌部流动损失、降低舌部噪音，从而提高风扇出口处的压力、提高风扇性能。
The invention discloses an electrical device with a special heat dissipation unit. The heat dissipation unit is used to dissipate heat from heat-generating components. The centrifugal fan of the heat dissipation unit includes a casing (1) and an impeller (2), and the casing includes a bottom plate (3). , a cover plate (4), a side plate (5), the end of the side plate close to the outlet end face has a tongue; the tongues (7, 8) include a first tongue (7) and a second tongue (8) , the first tongue part and the second tongue part are oppositely arranged and located on both sides of the outlet end face (31) respectively; the first tongue part (7) comprises a first arc-shaped part (9), a second arc-shaped part (10) ), the first arc-shaped part and the second arc-shaped part are connected in sequence, one side surface of the first arc-shaped part adjacent to the outer periphery of the blade has a plurality of first concave parts (11), and the plurality of first concave parts are arranged in an array. The centrifugal fan of the heat dissipation unit can reduce the flow loss of the tongue and reduce the noise of the tongue through the design of the tongue structure, thereby increasing the pressure at the fan outlet and improving the performance of the fan.
Description
Technical Field
The invention relates to the technical field of electrical devices and electronic devices, in particular to an electrical device with a special heat dissipation unit.
Background
In electrical devices and electronic devices, a heat dissipation unit is usually used to forcibly dissipate heat from a heat generating component, for example, a heat dissipation unit is provided in a server, an electrical control cabinet, an electronic product, or the like. The heat dissipation unit is usually a heat dissipation fan, and in order to improve the performance of the centrifugal fan in the prior art, the structure of the tongue portion of the centrifugal fan is usually improved, such as an adjustable tongue portion, a noise reduction design for the tongue portion, a bionic design, and the like. However, the existing centrifugal fan adopts a single tongue structure, has the problems of large tongue flow loss and large noise, and still has a space for further improvement.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide an electrical device with a special heat dissipation unit, wherein the centrifugal fan of the heat dissipation unit can reduce tongue flow loss and tongue noise through the design of a tongue structure, so that the pressure at the outlet of the fan is improved, and the performance of the fan is improved.
In order to achieve the purpose, the invention adopts the technical scheme that:
an electrical apparatus with special heat dissipating unit, it includes the heat dissipating unit, the heat dissipating unit is used for carrying on the forced heat dissipation to the heating part, the heat dissipating unit includes the centrifugal fan, the said centrifugal fan includes the body (1), impeller (2), the impeller is held in body, the impeller has a plurality of blades (6), the body includes the bottom plate (3), cover plate (4), curb plate (5), the bottom plate, cover plate are relatively set up and located axial both sides of the fan separately, the curb plate is connected between bottom plate, cover plate, the body has terminal surface of outlet (31), one end near terminal surface of outlet of the curb plate has tongues; the tongue portions (7,8) comprise a first tongue portion (7) and a second tongue portion (8), and the first tongue portion and the second tongue portion are arranged oppositely and are respectively located on two sides of the outlet end face (31).
Further, first tongue (7) include first arc portion (9), second arc portion (10), and first arc portion, second arc portion connect gradually the setting, and the junction constitutes first top (15), and a side of the adjacent blade periphery of first arc portion has a plurality of first recesses (11), and a plurality of first recesses are array arrangement.
Further, the plurality of first recesses (11) includes a plurality of rows of first recesses, and the recess sizes of the plurality of rows of first recesses are different.
Further, the column recess size of the plurality of first recesses (11) away from the outlet end face (31) is smaller than the column recess size adjacent to the outlet end face, and gradually increases from the column recess size away from the outlet end face to the column recess size adjacent to the outlet end face.
Furthermore, one side surface of the second arc-shaped part (10) connected with the first arc-shaped part is provided with a plurality of second concave parts (12), the second concave parts are arranged in an array mode, and the second concave parts comprise a plurality of columns of second concave parts.
Further, the plurality of rows of second recesses (12) are different in recess size, the row recess size of the plurality of second recesses remote from the outlet end face (31) is larger than the row recess size adjacent to the outlet end face, and gradually decreases from the row recess size remote from the outlet end face to the row recess size adjacent to the outlet end face.
Furthermore, the second tongue portion (8) comprises a third arc-shaped portion (13) and a fourth arc-shaped portion (14), the third arc-shaped portion and the fourth arc-shaped portion are sequentially connected, and a second top portion (16) is formed at the connection position; the first top and the second top are oppositely arranged and are respectively positioned at two sides of the outlet end face, the distance between the first top and the first outer side wall of the shell perpendicular to the outlet end face is B2, the distance between the second top and the second outer side wall of the shell perpendicular to the outlet end face is B1, and the first outer side wall and the second outer side wall are arranged in parallel; distance B1 < B2.
Further, one side surface of the first arc-shaped part (9) adjacent to the outer periphery of the blade is provided with an arc-shaped concave part (17), the arc-shaped concave part is concave towards the radial outer side, and the concave depth of the arc-shaped concave part (17) is 30-50% of the radial thickness of the first arc-shaped part.
Further, the second tongue portion (8) and the first tongue portion (7) have the same structure, namely the same structure of a first concave portion, a second concave portion and an arc-shaped concave portion.
The centrifugal fan of the heat dissipation unit can reduce tongue flow loss and tongue noise through the design of a tongue structure, so that the pressure at the outlet of the fan is improved, and the performance of the fan is improved.
Drawings
FIG. 1 is a schematic view of a centrifugal fan according to the present invention (front view);
FIG. 2 is a schematic view (side view) of a centrifugal fan according to the present invention;
FIG. 3 is a schematic view of a tongue structure according to the present invention;
fig. 4 is a schematic view of a tongue structure according to the present invention.
In the figure: the centrifugal compressor comprises a shell/volute 1, an impeller 2, a bottom plate 3, a cover plate 4, a side plate 5, a vane 6, a first tongue portion 7, a second tongue portion 8, a first arc-shaped portion 9, a second arc-shaped portion 10, a first concave portion 11, a second concave portion 12, a third arc-shaped portion 13, a fourth arc-shaped portion 14, a first top portion 15, a second top portion 16, an arc-shaped concave portion 17 and an outlet end face 31.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 4, an electrical apparatus having a special heat dissipation unit includes a heat dissipation unit for dissipating heat from a heat generating component, the heat dissipation unit includes a centrifugal fan including a casing 1 and an impeller 2, the impeller 2 is accommodated in the casing 1, the impeller 2 has a plurality of blades 6, the casing 1 includes a bottom plate 3, a cover plate 4, and side plates 5, the bottom plate 3 and the cover plate 4 are disposed opposite to each other and located at two axial sides of the fan respectively, the side plates 5 are connected between the bottom plate 3 and the cover plate 4, the casing 1 has an outlet end surface 31, and one end of the side plate 5 near the outlet end surface 31 has a tongue portion; the tongues (7,8) comprise a first tongue 7 and a second tongue 8, and the first tongue 7 and the second tongue 8 are oppositely arranged and are respectively positioned at two sides of the outlet end surface 31.
The first tongue portion 7 comprises a first arc-shaped portion 9 and a second arc-shaped portion 10, the first arc-shaped portion 9 and the second arc-shaped portion 10 are sequentially connected, the connection portion forms a first top portion 15, a side surface, adjacent to the outer periphery of the vane 6, of the first arc-shaped portion 9 is provided with a plurality of first concave portions 11, the first concave portions 11 are arranged in an array, the first concave portions 11 comprise a plurality of rows of first concave portions 11, the concave portions of the first concave portions 11 are different in size/size, further, the size of the concave portions of the first concave portions 11 far away from the outlet end surface 31 is smaller than that of the concave portions of the first concave portions near the outlet end surface 31, and the size of the concave portions of the first concave portions is gradually increased from the size of the concave portions of the row far away from the outlet end surface 31 to the size of the concave portions of the row near the outlet end surface 31, as shown in fig. 3; the first recess 11 is a semicircular recess.
A side surface of the second arc-shaped portion 10 connected to the first arc-shaped portion 9 has a plurality of second concave portions 12, the plurality of second concave portions 12 are arranged in an array, the plurality of second concave portions 12 include a plurality of rows of second concave portions 12, and the concave portions of the plurality of rows of second concave portions 12 have different sizes, further, the size of the row of concave portions of the plurality of second concave portions 12 far away from the outlet end surface 31 is larger than the size of the row of concave portions adjacent to the outlet end surface 31, and gradually decreases from the size of the row of concave portions far away from the outlet end surface 31 to the size of the row of concave portions adjacent to the outlet end surface 31, as shown in fig. 3; the second recess 12 is a semicircular recess.
The design of the tongue structure can reduce tongue flow loss and tongue noise, thereby improving the pressure at the outlet of the fan and improving the performance of the fan.
The second tongue portion 8 comprises a third arc-shaped portion 13 and a fourth arc-shaped portion 14, the third arc-shaped portion 13 and the fourth arc-shaped portion 14 are sequentially connected, and a second top portion 16 is formed at the connection position; the first top portion 15 and the second top portion 16 are disposed opposite to each other and located on two sides of the outlet end surface 31, respectively, a distance between the first top portion 15 and a first outer sidewall of the housing 1 perpendicular to the outlet end surface 31 is B2, a distance between the second top portion 16 and a second outer sidewall of the housing 1 perpendicular to the outlet end surface 31 is B1, and the first outer sidewall and the second outer sidewall are disposed in parallel. Since the shell/volute conveying space/flow channel at the periphery of the blade 6 is gradually increased, the distance B1 is designed to be less than B2, so that the blockage of the tongue part to the gas can be reduced, the flow loss of the tongue part is further reduced, the tongue part noise is reduced, the pressure at the outlet of the fan is improved, and the fan performance is improved.
In one embodiment, the first arc-shaped portion 9 has an arc-shaped recess 17 on a side surface adjacent to the outer periphery of the vane 6, the arc-shaped recess 17 being recessed radially outward, the recess depth of the arc-shaped recess 17 being 30-50% of the radial thickness of the first arc-shaped portion 9. This structural design can further reduce tongue flow losses and tongue noise.
The second tongue 8 and the first tongue 7 may have the same structure, i.e. the same structure of the first recess 11, the second recess 12, the arc-shaped recess 17.
A centrifugal fan with special heat radiating unit features that the tongue part structure of centrifugal fan can reduce the flow loss of tongue part and the noise of tongue part, resulting in higher pressure at outlet of fan and higher performance of fan.
The above-described embodiments are illustrative of the present invention and not restrictive, it being understood that various changes, modifications, substitutions and alterations can be made herein without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210552390.8A CN114810626B (en) | 2022-05-20 | 2022-05-20 | An electrical device with a special heat dissipation unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210552390.8A CN114810626B (en) | 2022-05-20 | 2022-05-20 | An electrical device with a special heat dissipation unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114810626A true CN114810626A (en) | 2022-07-29 |
| CN114810626B CN114810626B (en) | 2024-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210552390.8A Active CN114810626B (en) | 2022-05-20 | 2022-05-20 | An electrical device with a special heat dissipation unit |
Country Status (1)
| Country | Link |
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| CN (1) | CN114810626B (en) |
Citations (15)
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| CN201934385U (en) * | 2010-10-26 | 2011-08-17 | 珠海格力电器股份有限公司 | Cross-flow fan |
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| CN104196762A (en) * | 2014-08-29 | 2014-12-10 | 宁波方太厨具有限公司 | Fan volute tongue structure used for exhaust hood |
| CN204186657U (en) * | 2014-10-31 | 2015-03-04 | 合肥联宝信息技术有限公司 | For the dust extraction fan of notebook computer |
| US20190338784A1 (en) * | 2018-05-04 | 2019-11-07 | Ningbo Fotile Kitchen Ware Co., Ltd. | Volute Mechanism of a Centrifugal Fan |
| CN113757138A (en) * | 2020-06-05 | 2021-12-07 | 宁波方太厨具有限公司 | Fan system for air purifier and air purifier |
-
2022
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Patent Citations (15)
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|---|---|---|---|---|
| TW200540600A (en) * | 2004-06-09 | 2005-12-16 | Quanta Comp Inc | Centrifugal fan with resonant silencer |
| TW200615459A (en) * | 2004-11-05 | 2006-05-16 | Quanta Comp Inc | Centrifugal fan |
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| CN201934385U (en) * | 2010-10-26 | 2011-08-17 | 珠海格力电器股份有限公司 | Cross-flow fan |
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| US20190338784A1 (en) * | 2018-05-04 | 2019-11-07 | Ningbo Fotile Kitchen Ware Co., Ltd. | Volute Mechanism of a Centrifugal Fan |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN114810626B (en) | 2024-10-22 |
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Effective date of registration: 20240914 Address after: Building 45, 2-102, No. 3 Qiliu West Road, Economic and Technological Development Zone, Shangrao City, Jiangxi Province, 334000 Applicant after: Shangrao Shunwei Optics Co.,Ltd. Country or region after: China Address before: 210000 room 703, unit 2, building 2, No. 141, Hengshan Road, Jianye District, Nanjing City, Jiangsu Province Applicant before: Guan Junyan Country or region before: China |
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Application publication date: 20220729 Assignee: Suzhou Guosheng Technology Service Co.,Ltd. Assignor: Shangrao Shunwei Optics Co.,Ltd. Contract record no.: X2025980029762 Denomination of invention: An electrical device with a special heat dissipation unit Granted publication date: 20241022 License type: Common License Record date: 20251023 |
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