CN207830175U - Shock-damping structure and axial flow blower - Google Patents
Shock-damping structure and axial flow blower Download PDFInfo
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- CN207830175U CN207830175U CN201721892238.5U CN201721892238U CN207830175U CN 207830175 U CN207830175 U CN 207830175U CN 201721892238 U CN201721892238 U CN 201721892238U CN 207830175 U CN207830175 U CN 207830175U
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- end cap
- shock
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- ring flange
- axial flow
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Abstract
The utility model is related to axial flow blower technical fields, more particularly, to a kind of shock-damping structure and axial flow blower, the larger technical problem of noise caused by Oscillation Amplitude to alleviate external rotor electric machine existing in the prior art is larger.Including ring flange, end cap and dampening assembly.Ring flange has encloses the installation space for setting and being formed by an inner wall, and end cap is installed on the installation space inside ring flange, and has gap between end cap outer wall and ring flange inner wall；Dampening assembly is installed on the gap between ring flange inner wall and end cap outer wall.Technical solution provided by the utility model can realize good damping effect.
Description
Technical field
The utility model is related to axial flow blower technical fields, more particularly, to a kind of shock-damping structure and axial flow blower.
Background technology
External rotor electric machine is stator in the centre of motor, and rotor is outside.It is straight that outer rotor blower fan uses external rotor electric machine
Connect the structure type of impeller, advanced structure, pneumatic design rationally, have efficient, noise is low, it is light-weight, compact-sized,
The features such as convenient to install and maintain.
Since rotor and stator are assembled together, rotor will produce vibration when rotating, and vibration can be transmitted to stator, from
And noise is generated, and motor normal operating conditions requires Oscillation Amplitude to want as small as possible.
Therefore there are the larger technical problems of Oscillation Amplitude noise caused by larger for existing external rotor electric machine.
Utility model content
The purpose of this utility model is to provide a kind of shock-damping structure and axial flow blowers, existing in the prior art to alleviate
The larger technical problem of noise caused by the Oscillation Amplitude of external rotor electric machine is larger.
To alleviate above-mentioned technical problem, technical solution provided by the utility model is：
A kind of shock-damping structure is used for external rotor electric machine, including ring flange, end cap and dampening assembly；
The ring flange has encloses the installation space for setting and being formed by an inner wall, and the end cap is installed on inside the ring flange
Installation space, and between the end cap outer wall and the ring flange inner wall have gap；The dampening assembly is installed on institute
State the gap between ring flange inner wall and the end cap outer wall.
Further,
The dampening assembly includes multiple shock structures, and multiple shock structures are uniformly distributed around axis direction and are fixed in institute
State the inner wall of ring flange.
Further,
The shock structure is provided with no less than four, and damping column is in dumbbell shaped, in-between carefully being stuck in ring flange inner wall
Limiting groove in, axial and circumferential are limited.
Further,
Limited position mechanism is set on the end cap, and in the assembled state, the position-limit mechanism is for limiting the shock structure
Both ends enlarged head circumferential position and one end enlarged head axial position.
Further,
The position-limit mechanism includes multiple limiting grooves positioned at the ring flange inner wall, each limiting groove with it is each
A shock structure is arranged in a one-to-one correspondence.
Further,
The limiting groove is provided with no less than four.
A kind of axial flow blower, including above-mentioned shock-damping structure.
Further,
Further include the upper cover being covered on the end cap, affiliated upper cover is equipped with limit plane, when being above covered on end cap, institute
It states limit plane just to press with the end face of damping column another major part, the limit plane setting is no less than four.
Further,
The installation space both sides of the flange are open, and in an assembling process, the upper cover passes through first side opening
Into the installation space, the end cap enters the installation space by the second side opening of institute.
Further,
It is additionally provided with outer cover, the outer cover is used to close the first side opening of the flange.
In conjunction with above-mentioned technical proposal, what this life can be realized has technical effect that：
The installation space for setting and being formed is enclosed by an inner wall since the ring flange has, the end cap is installed on the ring flange
Internal installation space, and there is gap between the end cap outer wall and the ring flange inner wall；The dampening assembly installation
Gap between the ring flange inner wall and the end cap outer wall.
In the axial flow blower course of normal operation of the prior art, the shock momentum generated by outer rotor is transferred to stator, stator
It is transferred to end cap, due to being rigid contact between end cap and flange inner wall, the vibrations of flange can be caused.The utility model
In, it due to having gap between end cap and flange inner wall, is not directly contacted with, the fixation of the two is by being installed on the damping group in gap
Part realizes on the one hand dampening assembly plays the role of the relative position of fixed end cap and flange, on the other hand by reducing end
The rigid contact area of lid and flange inner wall transmits to reduce vibrations, absorbs shock momentum, therefore good damping may be implemented
Effect.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific implementation mode or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, other drawings may also be obtained based on these drawings.
Fig. 1 is the decomposition diagram for the axial flow blower that the utility model embodiment provides；
Fig. 2 is the schematic diagram of the shock structure in the ring flange in the axial flow blower that the utility model embodiment provides；
Fig. 3 is the structural schematic diagram of the limiting groove on the end cap in the axial flow blower that the utility model embodiment provides.
Icon：100- ring flanges；200- end caps；300- shock structures；210- limiting grooves；400- upper covers；110-
First side opening；The second side openings of 120-；500- outer covers；600- stator cores.
Specific implementation mode
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
The every other embodiment that field those of ordinary skill is obtained without making creative work, belongs to this practicality
Novel protected range.
It is in the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
The utility model and simplifying describes for ease of description, do not indicate or imply the indicated device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for description purposes only, and are not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, can also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, it can understand above-mentioned art with concrete condition
The concrete meaning of language in the present invention.
Embodiment 1, embodiment 2 and embodiment 3 are described in detail below in conjunction with the accompanying drawings：
Fig. 1 is the decomposition diagram for the axial flow blower that the utility model embodiment provides；Fig. 2 is the utility model embodiment
The schematic diagram of the shock structure in ring flange in the axial flow blower of offer；Fig. 3 is the axis stream wind that the utility model embodiment provides
The structural schematic diagram of the limiting groove on end cap in machine.
Embodiment 1
A kind of shock-damping structure is present embodiments provided, is used for external rotor electric machine, including ring flange 100, end cap 200 and subtract
Shake component；
Ring flange 100 has encloses the installation space for setting and being formed by an inner wall, and end cap 200 is installed on inside ring flange 100
Installation space, and there is gap between 100 inner wall of 200 outer wall of end cap and ring flange；Dampening assembly is installed in ring flange 100
Gap between 200 outer wall of wall and end cap.
The advantageous effect of the shock-damping structure to being provided in the present embodiment is analyzed as follows below：
In the axial flow blower course of normal operation of the prior art, the shock momentum generated by outer rotor is transferred to stator, stator
It is transferred to end cap 200, due to being rigid contact between end cap 200 and flange inner wall, the vibrations of flange can be caused.
In the utility model, ring flange 100 has encloses the installation space for setting and being formed by an inner wall, and end cap 200 is installed on method
Installation space inside blue disk 100, and there is gap between 100 inner wall of 200 outer wall of end cap and ring flange；Dampening assembly is installed
Gap between 200 outer wall of 100 inner wall of ring flange and end cap.Due to having gap between end cap 200 and flange inner wall, not directly
The fixation of contact, the two realizes on the one hand dampening assembly plays fixed end cap 200 by being installed on the dampening assembly in gap
With the effect of the relative position of flange, on the other hand by reducing the rigid contact area of end cap 200 and flange inner wall to subtract
Smaller tremors transmits, absorbs shock momentum, therefore good damping effect may be implemented.
In the alternative of the present embodiment, more preferably,
Dampening assembly includes multiple shock structures 300, and multiple shock structures 300 are uniformly distributed in ring flange around axis direction
100 inner wall.
Further, shock structure 300 is provided with no less than four, and multiple shock structures 300 are uniformly distributed in ring flange 100
Inner wall.
Further, shock structure 300 is made of elastic material, by natural resiliency deformation to absorb shock momentum, to
Achieve the effect that damping.
Further, shock structure 300 is set as string configuration, and section is set as arcuate structure.
Further, damping column is in dumbbell shaped, and in-between thin is stuck in the limiting groove of ring flange inner wall, axial
It is limited with circumferential.
In the alternative of the present embodiment, more preferably,
Limited position mechanism is set on end cap 200, and in the assembled state, position-limit mechanism is used to limit the position of shock structure 300.
Specifically, the position-limit mechanism is used to limit the axial direction of both ends the enlarged head circumferential position and one end enlarged head of the shock structure
Position.
Further, position-limit mechanism includes multiple limiting grooves 210 positioned at the ring flange inner wall, and each limit is recessed
Slot 210 is arranged in a one-to-one correspondence with each shock structure 300.
Further, there are four the settings no less than of limiting groove 210.
Further, four limiting grooves 210 are uniformly distributed in the outer wall of end cap 200.
Further, the shape adaptation of the shape of limiting groove 210 and shock structure 300.
Embodiment 2
A kind of axial flow blower is present embodiments provided, including the shock-damping structure that embodiment 1 is addressed,
In the alternative of the present embodiment, more preferably,
Shock-damping structure is used for external rotor electric machine, including ring flange 100, end cap 200 and dampening assembly；Ring flange 100 has
Have and the installation space for setting and being formed is enclosed by an inner wall, end cap 200 is installed on the installation space inside ring flange 100, and end cap 200
There is gap between 100 inner wall of outer wall and ring flange；Dampening assembly is installed between 200 outer wall of 100 inner wall of ring flange and end cap
Gap.
In the alternative of the present embodiment, more preferably,
Axial flow blower further includes the upper cover 400 being covered on end cap 200, is formed between upper cover 400 and end cap 200 free
Chamber can be used for installing wiring board in cavity.The upper cover is equipped with limit plane, when being above covered on end cap, the limit plane
It is just pressed with the end face of damping column another major part, the limit plane setting is no less than four.
In the alternative of the present embodiment, more preferably,
Bearing and bearing holder (housing, cover) are installed in the cavity formed by upper cover 400 and end cap 200.
In the alternative of the present embodiment, more preferably,
The installation space both sides of flange are open, and in an assembling process, upper cover 400 is entered by the first side opening 110 pacifies
Space is filled, end cap 200 enters installation space by the second side opening 120 of institute.
In the alternative of the present embodiment, more preferably,
Axial flow blower further includes having outer cover 500, and outer cover 500 is used for the first side opening 110 of sealing flange.
In the alternative of the present embodiment, more preferably,
Axial flow blower further includes having the stator core 600 for being installed on the outside of end cap 200, stator core 600 and end cap 200 it
Between by protruding from the axis connection of end cap 200.
In the alternative of the present embodiment, more preferably,
600 outside of stator core is further sleeved with bearing and bearing holder (housing, cover).
The advantageous effect of the axial flow blower to being provided in the present embodiment is analyzed as follows below：
In the axial flow blower course of normal operation of the prior art, the shock momentum generated by outer rotor is transferred to stator, stator
It is transferred to end cap 200, due to being rigid contact between end cap 200 and flange inner wall, the vibrations of flange can be caused.This practicality
In novel, due to having gap between end cap 200 and flange inner wall, it is not directly contacted with, the fixation of the two is by being installed on gap
Dampening assembly realize that on the one hand dampening assembly plays the role of the relative position of fixed end cap 200 and flange, on the other hand
Rigid contact area by reducing end cap 200 and flange inner wall transmits to reduce vibrations, absorbs shock momentum, therefore can be real
Existing good damping effect.
Embodiment 3
A kind of assemble method of external rotor axial-flow fan is present embodiments provided, including：
End cap 200 is stretched into the installation space of flange from the second side opening 120 of flange, is ensured in end cap 200 and flange
Wall does not contact；
Shock structure 300 is stretched into the limiting groove 210 on end cap 200 from the first side opening 110 of flange, and with flange
Inner wall contacts；
Upper cover 400 is covered on end cap 200 from the first side opening 110 of flange；
Outer cover 500 is covered on to the first side opening 110 of flange.
Advantageous effect is analyzed as follows：In the utility model, due to having gap between end cap 200 and flange inner wall, not directly
The fixation of contact, the two realizes on the one hand dampening assembly plays fixed end cap 200 by being installed on the dampening assembly in gap
With the effect of the relative position of flange, on the other hand by reducing the rigid contact area of end cap 200 and flange inner wall to subtract
Smaller tremors transmits, absorbs shock momentum, therefore good damping effect may be implemented.
Finally it should be noted that：The above various embodiments is only to illustrate the technical solution of the utility model, rather than limits it
System；Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should
Understand：It still can be with technical scheme described in the above embodiments is modified, either to which part or whole
Technical characteristic carries out equivalent replacement；And these modifications or replacements, this practicality that it does not separate the essence of the corresponding technical solution are new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of shock-damping structure is used for external rotor electric machine, which is characterized in that including ring flange, end cap and dampening assembly；
The ring flange has encloses the installation space for setting and being formed by an inner wall, and the end cap is installed on the peace inside the ring flange
Space is filled, and there is gap between the end cap outer wall and the ring flange inner wall；The dampening assembly is installed on the method
Gap between blue disk inner wall and the end cap outer wall.
2. shock-damping structure according to claim 1, which is characterized in that
The dampening assembly includes multiple shock structures, and multiple shock structures are uniformly distributed around axis direction and are fixed in the method
The inner wall of blue disk.
3. shock-damping structure according to claim 2, which is characterized in that
The shock structure is provided with no less than four, and damping column is in dumbbell shaped, the thin in-between limit for being stuck in ring flange inner wall
In the groove of position, axial and circumferential are limited.
4. shock-damping structure according to claim 1, which is characterized in that
Limited position mechanism is set on the end cap, and in the assembled state, the position-limit mechanism is for limiting the two of the shock structure
Hold the axial position of enlarged head circumferential position and one end enlarged head.
5. shock-damping structure according to claim 4, which is characterized in that
The position-limit mechanism includes multiple limiting grooves positioned at the ring flange inner wall, each limiting groove and each institute
Shock structure is stated to be arranged in a one-to-one correspondence.
6. shock-damping structure according to claim 5, which is characterized in that
The limiting groove is provided with no less than four.
7. a kind of axial flow blower, which is characterized in that including shock-damping structure as claimed in any one of claims 1 to 6.
8. axial flow blower according to claim 7, which is characterized in that further include the upper cover being covered on the end cap, institute
State upper cover and be equipped with limit plane, when being above covered on end cap, the limit plane just with the end face of damping column another major part
Pressing, the limit plane setting no less than four.
9. axial flow blower according to claim 8, which is characterized in that the installation space both sides of the flange are open,
In assembling process, the upper cover enters the installation space by the first side opening, and the end cap is entered by the second side opening
The installation space.
10. axial flow blower according to claim 9, which is characterized in that
It is additionally provided with outer cover, the outer cover is used to close the first side opening of flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721892238.5U CN207830175U (en) | 2017-12-29 | 2017-12-29 | Shock-damping structure and axial flow blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721892238.5U CN207830175U (en) | 2017-12-29 | 2017-12-29 | Shock-damping structure and axial flow blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207830175U true CN207830175U (en) | 2018-09-07 |
Family
ID=63390664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721892238.5U Active CN207830175U (en) | 2017-12-29 | 2017-12-29 | Shock-damping structure and axial flow blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207830175U (en) |
-
2017
- 2017-12-29 CN CN201721892238.5U patent/CN207830175U/en active Active
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