CN207814002U - Centrifugal fan and cooling device comprising the centrifugal fan - Google Patents
Centrifugal fan and cooling device comprising the centrifugal fan Download PDFInfo
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- CN207814002U CN207814002U CN201820090930.4U CN201820090930U CN207814002U CN 207814002 U CN207814002 U CN 207814002U CN 201820090930 U CN201820090930 U CN 201820090930U CN 207814002 U CN207814002 U CN 207814002U
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- plate portion
- flank
- centrifugal fan
- impeller
- support portion
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Abstract
A kind of centrifugal fan and the cooling equipment comprising the centrifugal fan, the centrifugal fan have：Impeller, motor；And shell；The shell has：First plate portion has the first air entry penetrated through in an axial direction；Second plate portion has the second air entry penetrated through in an axial direction；The first side wall portion extends from the radial outside edge of the first plate portion towards the direction of the second plate portion；And the second side wall portion, extend from the radial outside edge of the second plate portion towards the direction of the first plate portion；The impeller has：Cup portion；First support portion is located at the radial outside of cup portion, has multiple blades in the first support portion upper edge axial arrangement；And first flank, connect cup portion and the first support portion；Wherein, the part that cup portion, the first support portion and the first flank surround constitutes impeller opening, and the area of impeller opening is more than the area of the second air entry.Since the opening area of impeller side becomes larger, the loss of the air capacity flowed into from air entry is reduced, air output is increased.
Description
Technical field
The utility model is related to field of motors, more particularly to a kind of centrifugal fan and the cooling dress comprising the centrifugal fan
It sets.
Background technology
With the progress of the development and science and technology of society, present people pursue the life of high-quality, are wanted to household electrical appliance
Ask higher and higher.The considerations of when efficiency and cost of household electrical appliance are chosen as people factor.
It should be noted that being intended merely to above to the introduction of technical background convenient clear to the technical solution of the utility model progress
Chu, complete explanation, and facilitate the understanding of those skilled in the art and illustrate.Cannot merely because these schemes in this practicality
Novel background technology part is expounded and thinks that above-mentioned technical proposal is known to those skilled in the art.
Utility model content
In order to improve the intake and control cost of centrifugal fan, the utility model embodiment provides a kind of centrifugal fan
And the cooling device comprising the centrifugal fan.
According to the utility model embodiment in a first aspect, providing a kind of centrifugal fan, have：
Impeller,
Motor, with rotating part, the rotating part is configured to pivot about with central axis, and drives
The dynamic impeller rotation；And
Shell stores the impeller and the motor in inside；
The shell has：
First plate portion is located at the axial side of the impeller, has the first air entry penetrated through in an axial direction；
Second plate portion is located at the axial other side of the impeller, has the second air entry penetrated through in an axial direction；
The first side wall portion extends from the edge of the radial outside of first plate portion towards the direction of second plate portion；
And
The second side wall portion extends from the edge of the radial outside of second plate portion towards the direction of first plate portion；
The impeller has：
Cup portion stores the rotating part of the motor；
First support portion is located at the radial outside of the cup portion, has in the first support portion upper edge axial arrangement more
A blade；And
First flank connects the cup portion and first support portion；
Wherein, the part that the cup portion, first support portion and first flank surround constitutes impeller opening；
It is characterized in that, the area of the impeller opening is more than the area of second air entry.
In one embodiment, second plate portion has：Second support portion supports the motor；Edge is located at
The radial outside of second support portion；And second flank, second support portion and the edge are connected radially；
Wherein, the part that second support portion, the edge and second flank surround constitutes second air entry.
In one embodiment, the cup portion is formed as the tubular axially extended, and the radial direction of the cup portion of tubular is most
Edge of the outside close to the edge of second plate portion than the radially inner side of first support portion closer to first plate portion,
So that first flank is to be obliquely installed.
In one embodiment, first support portion radially expands as tabular, in leaning on for first support portion
It is configured with above-mentioned multiple blades on the surface of the side of nearly first plate portion, also, from end on observation, first support portion
There is portion with projection of the edge of projection and second plate portion on the face of the central axis upright on the face
Divide and overlaps.
In one embodiment, the edge of the one end of the radially inner side of first support portion than second plate portion
Radially inner side one end closer to radially inner side.
In one embodiment, first flank is in the circumferential with equally spaced angle configurations；Second flank exists
With the angle configurations different from first flank in circumferential direction.
In one embodiment, the quantity of first flank is identical with the quantity of second flank, is all three.
In one embodiment, the circumferential amplitude of second flank is more than the circumferential amplitude of first flank.
In one embodiment, circuit board is configured between second support portion and the motor.
In one embodiment, the quantity of first flank is four or five.
In one embodiment, the surface close to the side of first plate portion of second plate portion is provided with third
Flank, the third flank are set to the radial outside of first support portion.
In one embodiment, the one side far from second plate portion of first plate portion is to the remote of second plate portion
The axial height between one side from first plate portion, with one side of second plate portion far from first plate portion to institute
The ratio of the axial height between one end of first plate portion of motor is stated in the range of 0.5 to 0.8.
In one embodiment, the area of the impeller opening and the area ratio of first air entry are arrived 0.25
In the range of 0.55.
According to the second aspect of the utility model embodiment, a kind of cooling device is provided, the cooling device includes
Centrifugal fan above-mentioned.
The advantageous effect of the utility model embodiment is：Pass through the centrifugal fan of the utility model embodiment, impeller side
Opening area become larger, reduce the loss of the air capacity flowed into from air entry, increase air output.
With reference to following description and accompanying drawings, the particular implementation of the utility model is disclosed in detail, specifies this practicality
Novel principle can be in a manner of adopted.It should be understood that the embodiment of the utility model in range not thus by
Limitation.In the range of the clause of appended claims, the embodiment of the utility model includes many changes, modifications and waits
Together.
The feature for describing and/or showing for a kind of embodiment can be in a manner of same or similar one or more
It is used in a other embodiment, it is combined with the feature in other embodiment, or substitute the feature in other embodiment.
It should be emphasized that term "comprises/comprising" refers to the presence of feature, one integral piece, step or component when being used herein, but simultaneously
It is not excluded for the presence or additional of one or more other features, one integral piece, step or component.
Description of the drawings
The elements and features described in one drawing or one embodiment of the utility model embodiment can be with one
Elements and features are combined shown in a or more other attached drawings or embodiment.In addition, in the accompanying drawings, similar label
It indicates corresponding component in several attached drawings, and may be used to indicate the corresponding component used in more than one embodiment.
Included attached drawing is used for providing being further understood from the utility model embodiment, and which constitute specifications
A part, the embodiment for illustrating the utility model, and with verbal description come together illustrate the principles of the present invention.It is aobvious
And easy insight, the accompanying drawings in the following description are only some embodiments of the utility model, for those of ordinary skill in the art
For, without having to pay creative labor, other drawings may also be obtained based on these drawings.
In the accompanying drawings：
Fig. 1 is the schematic diagram of the centrifugal fan of embodiment 1；
Fig. 2 is the exploded view of the centrifugal fan of embodiment 1；
Fig. 3 is the sectional view of the centrifugal fan of embodiment 1；
Fig. 4 be the first plate portion of the centrifugal fan of embodiment 1, the first air entry and the first side wall portion schematic diagram；
Fig. 5 be the first plate portion of the centrifugal fan of embodiment 1, the first air entry vertical view；
Fig. 6 be the second plate portion of the centrifugal fan of embodiment 1, the second air entry and the second side wall portion schematic diagram；
Fig. 7 be the second plate portion of the centrifugal fan of embodiment 1, the second air entry vertical view；
Fig. 8 is the schematic diagram of the impeller of the centrifugal fan of embodiment 1；
Fig. 9 is the vertical view of the impeller of the centrifugal fan of embodiment 1.
Specific implementation mode
With reference to attached drawing, by following specification, the aforementioned and other feature of the utility model will be apparent.It is saying
In bright book and attached drawing, the particular implementation of the utility model is specifically disclosed, it is new which show this practicality wherein may be used
The some embodiments of the principle of type, it will thus be appreciated that the utility model is not limited to described embodiment, on the contrary, this reality
With novel whole modifications, modification and equivalent including falling within the scope of the appended claims.
In the utility model embodiment, term " first ", " second " etc. from appellation to different elements for carrying out area
Point, it is not intended that the space arrangement of these elements or time sequencing etc., these elements should not be limited by these terms.Term
"and/or" includes one kind of the associated term listed or any one of multiple and all combinations.Term "comprising", " packet
Include ", " having " etc. refer to the presence of stated feature, element, element or component, but be not precluded presence or addition one or
Other multiple features, element, element or component.
In the utility model embodiment, singulative " one ", "the" etc. include plural form, be should be broadly interpreted as
"an" or " one kind " and be not defined as the meaning of "one"；In addition term " described " is interpreted as both including singulative
Also include plural form, unless the context clearly indicates otherwise.In addition term " according to " is interpreted as " at least partly root
According to ... ", term "based" is interpreted as " being at least partially based on ... ", unless the context clearly indicates otherwise.
In the utility model embodiment, for convenience of description, by with along the parallel side in the direction that central axis extends
To " axial direction " is known as, the radial direction centered on central axis is known as " radial direction ", will be known as around the direction of central axis
" circumferential direction ", but this simply to illustrate that convenience, not limit the utility model embodiment centrifugal fan using and manufacturing
When direction.
The various embodiments of the utility model are illustrated below in conjunction with the accompanying drawings.These embodiments are exemplary
, it is not limitations of the present invention.
Embodiment 1
The utility model embodiment provides a kind of centrifugal fan.Fig. 1 is the schematic diagram of the centrifugal fan, Fig. 2 be this from
The exploded view of heart fan, Fig. 3 are the sectional views of the centrifugal fan.As shown in Figs. 1-3, which has impeller 100, motor
200 and shell 300.Motor 200 have rotating part 201, the rotating part 201 be configured to centered on central axis into
Row rotation, and impeller 100 is driven to rotate.Shell 300 is in inside storage impeller 100 and motor 200.
In the present embodiment, as shown in Fig. 2, shell 300 has the first plate portion (also referred to as upper plate portion) 301 and the second plate portion
(also referred to as lower board unit) 302.First plate portion 301 is located at the axial side of impeller 100, has the first air entry penetrated through in an axial direction
(also referred to as upper air entry) 303, also, from at least part at the radial outside edge of the first plate portion 301 towards the second plate portion 302
Direction be extended with the first side wall portion 305.Fig. 4 and Fig. 5 shows first plate portion 301, the first air entry 303 and the first side wall
The structure of one embodiment in portion 305.Second plate portion 302 is located at the axial other side of impeller 100, with what is penetrated through in an axial direction
Second air entry (also referred to as descending air entry) 304, from at least part at the radial outside edge of the second plate portion 302 towards the first plate
The direction in portion 301 is extended with the second side wall portion 306.Fig. 6 and Fig. 7 shows the knot of an embodiment of second plate portion 302
Structure.
In the present embodiment, as shown in Figure 1, the first side wall portion 305 and the second side wall portion 306 can engage in the axial direction,
It is fitted into or connects by other means, the present embodiment is not restricted this.
In the present embodiment, as described in Fig. 2 and Fig. 3, impeller 100 has cup portion (also referred to as impeller cup portion) 101, first
Support part (also referred to as impeller support portion) 102 and the first flank (also referred to as impeller flank) 103.Fig. 8 and Fig. 9 shows the impeller
The structure of 100 embodiment, as shown in figures 3 and 8, the above-mentioned rotating part 201 of the storage motor of cup portion 101, first
Support part 102 is located at the radial outside of cup portion 101, and multiple blades 104, first rib are provided in an axial direction on the first support portion 102
Portion 103 connects cup portion 101 and the first support portion 102, the portion that cup portion 101, the first support portion 102 and the first flank 103 surround
Divide and constitutes impeller opening 105.
In the present embodiment, the area of impeller opening 105 area (as shown in Figure 9) more than the second air entry 304 is (as schemed
Shown in 7) namely impeller side opening area and opening area more than lower board unit side sum, pass through expand impeller side as a result,
Opening area, reduce the loss of the air capacity flowed into from air entry, the air output of centrifugal fan can be increased.
In an embodiment of the present embodiment, as shown in fig. 7, the second plate portion 302 has the second support portion (also referred to as
Motor support portion) 3021, support said motor 200；Edge 3022 is located at the radial outside of the second support portion 3021；With
And second flank (also referred to as lower plate flank) 3023, the second support portion 3021 and edge 3022 are connected radially.In this reality
Apply in example, as shown in fig. 7, the part that the second support portion 3021, edge 3022 and the second flank 3023 surround constitute it is above-mentioned
Second air entry 304.
In an embodiment of the present embodiment, as shown in Figure 2 and Figure 8, cup portion 101 can be formed as axially extending
Tubular, as shown in figure 3, the outermost radial outside of the cup portion 101 of tubular close to the edge of the second plate portion 302 than the first support portion
The edge of 102 radially inner side is closer to the first plate portion 301, that is, in terms of Fig. 3, the lower end A of cup portion 101 is than the first support portion
102 inner end B is closer to upside shown in Fig. 3.Since the first flank 103 is for connecting cup portion 101 and the first support portion 102,
Setting in this way can make first rib portion 103 be formed as being obliquely installed.Impeller opening 105 can be further increased
Opening area reduces the loss of the air capacity flowed into from air entry, to increase air output.
In an embodiment of the present embodiment, as shown in figure 3, the first support portion 102 radially expands as tabular,
Above-mentioned multiple blades 104 are configured on the surface of the side of the first plate portion (upper plate portion) 301 in the first support portion 102,
Also, from end on observation, projection c of first support portion 102 on the face with central axis upright is above-mentioned with the second plate portion 302
Projection d of the edge 3022 on the face partially overlaps.Thus, it is possible to the turbulent flow between impeller 300 and lower board unit 302 is prevented,
Air output can be increased.
In an embodiment of the present embodiment, as shown in figure 3, one end (B) of the radially inner side of the first support portion 102
Than the edge 3022 of the second plate portion 302 radially inner side one end (D) closer to radially inner side.Thus, it is possible to prevent by multiple
The turbulent flow that blade 104 generates, can reduce noise.
In an embodiment of the present embodiment, as shown in figure 9, the first flank 103 is in the circumferential with equally spaced angle
Degree configuration；As shown in fig. 7, the second flank 3023 is in the circumferential with the angle configurations different from the first flank 103.Thus, it is possible to
The interference for reducing lower plate flank (the second flank 3023) and impeller flank (the first flank 103), can reduce noise.
In the present embodiment, as shown in Fig. 9 and Fig. 7, the quantity of the first flank 103 and the second flank 3023 can phase
Together, for example, have all be three, thus, it is possible to ensure the intensity of component with minimal flank quantity, and can ensure most
The opening area of big air entry.
In the present embodiment, as shown in Fig. 9 and Fig. 7, the circumferential amplitude of the second flank (lower plate flank) 3023 can be big
In the circumferential amplitude of the first flank (impeller flank) 103, pass through the circumferential width of increase lower plate flank (the second flank 3023) as a result,
Degree can reduce the vibration of motor generation.
In the present embodiment, as previously mentioned, as shown in fig. 7, the second support portion 3023 for being supported to motor 200,
The circuit board of motor 200 can be only fitted between the second support portion 3023 and motor 200, as a result, from lower air entry (the second air-breathing
304) air that mouth flows into being capable of cooling circuit board.
In the present embodiment, it is three with impeller flank (the first flank 103) to be illustrated, as shown in figure 9, but this reality
Example is applied not in this, as limitation, the first flank 103 can also be four either five or other quantities, and the present embodiment is true
Under the premise of the area for protecting impeller opening 105, the quantity of impeller flank (the first flank 103) is not restricted.
In an embodiment of the present embodiment, as shown in Figure 6 and Figure 7, in the second plate portion 302 close to the first plate portion
The surface of 301 side can also be arranged third flank 3024, and third flank 3024 can be from above-mentioned surface to the first plate portion 301
Direction protrude, also, third flank 3024 can be set to the radial outside of the first support portion (impeller support portion) 102,
That is projection of first support portion 102 in the second plate portion 302 does not cover third flank 3024.By the way that third flank is arranged
3024, the capacity of exhaust outlet can be controlled, turbulent flow is prevented.
In the present embodiment, the quantity of third flank 3024 is not restricted, can be as shown in Figure 6 and Figure 7 not
Can also be equal length multiple or one with the multiple of length.
In the present embodiment, as shown in Figure 6 and Figure 7, the second side wall portion 306 can have circular arc portion and straight line portion
Point, third flank 3024 can be arranged along the straight line portion of the second side wall portion 306, such as be set as and the second side wall portion 306
Straight line portion it is substantially parallel.
In an embodiment of the present embodiment, as shown in figure 3, one far from the second plate portion 302 of the first plate portion 301
Face is to the axial height E between the one side far from the first plate portion 301 of the second plate portion 302, with the second plate portion 302 far from first
Relationship between the ratio of axial height F of the one side of plate portion 301 to motor 200 between one end of first plate portion 301 is：
The ratio of F and E is in the range of 0.5 to 0.8 namely F/E=0.5~0.8.As a result, by controlling the axial height of motor 200,
Air quantity can be controlled, convenient for air inlet.
In an embodiment of the present embodiment, as shown in figure 3, the area of impeller opening 105 and the first air entry (on
Air entry) 303 area ratio in the range of 0.25 to 0.55.It is reduced as a result, from upper air entry (the first air entry 303)
The loss of the air capacity of inflow, increases air output.
In the above embodiment, the opening area of impeller side becomes larger, and reduces the damage of the air capacity flowed into from air entry
It loses, increases air output.
Embodiment 2
A kind of cooling device is present embodiments provided, which has centrifugal fan described in embodiment 1, also has
Other conventional components.The present embodiment is not restricted conventional components structure, set-up mode and the function, can refer to existing skill
Art.
In the present embodiment, the structure of the centrifugal fan based on embodiment 1, the opening area of impeller side become larger, reduce
The loss of the air capacity flowed into from air entry, increases air output.
The cooling device of the present embodiment can be the arbitrary cooling device using centrifugal fan, for example, can be use from
The compressor of heart fan.But for the present embodiment not in this, as limitation, the centrifugal fan of embodiment 1 can also be used as other coolings
The centrifugal fan of device uses, for example, as household electrical appliances such as the indoor unit of air conditioner, the outdoor unit of air conditioner, water dispenser, pressure fan
Centrifugal fan in equipment uses, alternatively, being used as the centrifugal fan in various information equipments, industrial equipment etc..
The utility model is described above in association with specific embodiment, but those skilled in the art should be clear
Chu, these descriptions are all exemplary, and are not the limitation to scope of protection of the utility model.Those skilled in the art can root
Various variants and modifications are made to the utility model according to the spirit and principle of the utility model, these variants and modifications are also in this reality
With in novel range.
Claims (14)
1. a kind of centrifugal fan, has：
Impeller,
Motor, with rotating part, the rotating part is configured to pivot about with central axis, and drives institute
State impeller rotation；And
Shell stores the impeller and the motor in inside；
The shell has：
First plate portion is located at the axial side of the impeller, has the first air entry penetrated through in an axial direction；
Second plate portion is located at the axial other side of the impeller, has the second air entry penetrated through in an axial direction；
The first side wall portion extends from the radial outside edge of first plate portion towards the direction of second plate portion；
And
The second side wall portion extends from the radial outside edge of second plate portion towards the direction of first plate portion；
The impeller has：
Cup portion stores the rotating part of the motor；
First support portion is located at the radial outside of the cup portion, has multiple leaves in the first support portion upper edge axial arrangement
Piece；And
First flank connects the cup portion and first support portion；
Wherein, the part that the cup portion, first support portion and first flank surround constitutes impeller opening；
It is characterized in that, the area of the impeller opening is more than the area of second air entry.
2. centrifugal fan according to claim 1, which is characterized in that second plate portion has：
Second support portion supports the motor；
Edge is located at the radial outside of second support portion；And
Second flank connects second support portion and the edge radially；
Wherein, the part that second support portion, the edge and second flank surround constitutes second air entry.
3. centrifugal fan according to claim 1 or 2, which is characterized in that the cup portion is formed as the cylinder axially extended
Shape, the radially inner side of the outermost radial outside of the cup portion of tubular close to the edge of second plate portion than first support portion
Edge closer to first plate portion so that first flank is to be obliquely installed.
4. centrifugal fan according to claim 2, which is characterized in that first support portion radially expands as tablet
Shape, in first support portion configured with above-mentioned multiple blades on the surface of the side of first plate portion, also, from
End on observation, first support portion is in the edge with projection and second plate portion on the face of the central axis upright
Projection of the portion on the face partially overlaps.
5. centrifugal fan according to claim 2, which is characterized in that one end ratio of the radially inner side of first support portion
One end of the radially inner side of the edge of second plate portion is closer to radially inner side.
6. centrifugal fan according to claim 2, which is characterized in that
First flank is in the circumferential with equally spaced angle configurations；
Second flank is in the circumferential with the angle configurations different from first flank.
7. centrifugal fan according to claim 6, which is characterized in that the quantity of first flank and second flank
Quantity it is identical, be all three.
8. centrifugal fan according to claim 6, which is characterized in that the circumferential amplitude of second flank is more than described the
The circumferential amplitude of one flank.
9. centrifugal fan according to claim 2, which is characterized in that match between second support portion and the motor
It is equipped with circuit board.
10. centrifugal fan according to claim 1 or 2, which is characterized in that the quantity of first flank is four or five
It is a.
11. centrifugal fan according to claim 1 or 2, which is characterized in that in second plate portion close to described first
The surface of the side of plate portion is provided with third flank, and the third flank is set to the radial outside of first support portion.
12. centrifugal fan according to claim 1 or 2, which is characterized in that separate first plate of second plate portion
The one side in portion is separate with first plate portion to the axial height between one end of close first plate portion of the motor
Second plate portion to second plate portion far from first plate portion while between the ratio of axial height exist
In the range of 0.5 to 0.8.
13. centrifugal fan according to claim 1 or 2, which is characterized in that the area of the impeller opening and described first
The area ratio of air entry is in the range of 0.25 to 0.55.
14. a kind of cooling device, which is characterized in that the cooling device includes the centrifugation of claim 1-13 any one of them
Fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820090930.4U CN207814002U (en) | 2018-01-19 | 2018-01-19 | Centrifugal fan and cooling device comprising the centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820090930.4U CN207814002U (en) | 2018-01-19 | 2018-01-19 | Centrifugal fan and cooling device comprising the centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207814002U true CN207814002U (en) | 2018-09-04 |
Family
ID=63324491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820090930.4U Withdrawn - After Issue CN207814002U (en) | 2018-01-19 | 2018-01-19 | Centrifugal fan and cooling device comprising the centrifugal fan |
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| Country | Link |
|---|---|
| CN (1) | CN207814002U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056514A (en) * | 2018-01-19 | 2019-07-26 | 日本电产株式会社 | Centrifugal fan and cooling device comprising the centrifugal fan |
-
2018
- 2018-01-19 CN CN201820090930.4U patent/CN207814002U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056514A (en) * | 2018-01-19 | 2019-07-26 | 日本电产株式会社 | Centrifugal fan and cooling device comprising the centrifugal fan |
| CN110056514B (en) * | 2018-01-19 | 2020-10-13 | 日本电产株式会社 | Centrifugal fan and cooling device comprising same |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180904 Effective date of abandoning: 20201013 |