CN205829364U - A kind of ventilated machine casing that can reduce high frequency noise - Google Patents
A kind of ventilated machine casing that can reduce high frequency noise Download PDFInfo
- Publication number
- CN205829364U CN205829364U CN201620641881.XU CN201620641881U CN205829364U CN 205829364 U CN205829364 U CN 205829364U CN 201620641881 U CN201620641881 U CN 201620641881U CN 205829364 U CN205829364 U CN 205829364U
- Authority
- CN
- China
- Prior art keywords
- vented cavity
- radiating ribs
- deep bead
- brace rod
- axial
- 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.)
- Active
Links
Landscapes
- Motor Or Generator Frames (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The utility model discloses a kind of ventilated machine casing that can reduce high frequency noise, it includes housing body, the surrounding of housing body respectively offers an axial vented cavity for being passed through cooling wind, at least one axial brace rod and a plurality of axial radiating ribs it is provided with in each vented cavity, the bottom of the brace rod in each vented cavity and the bottom of radiating ribs are all connected with one at the bottom of the chamber of this vented cavity, the top, chamber of each vented cavity is coated with one piece of deep bead, the top of all brace rods in each vented cavity all connects with corresponding deep bead, every piece of deep bead offers the radiating ribs fixed groove the most axial with corresponding every radiating ribs on the surface at the bottom of the chamber of the vented cavity at place, the top of every radiating ribs in each vented cavity embeds in radiating ribs fixed groove corresponding on the deep bead in this vented cavity；Advantage is that the natural frequency of radiating ribs has exceeded the working speed of motor and the chopping frequency of variable-frequency power sources, well reduces the high frequency noise of motor.
Description
Technical field
This utility model relates to the ingredient of a kind of motor, especially relates to a kind of air-cooled electricity that can reduce high frequency noise
Machine casing.
Background technology
The national standard of motor defines the relevant criterion of limit value requirement, particularly household electrical appliance to the level of noise of motor
In, especially the level of noise of motor there are strict requirements.Therefore, the level of noise of motor is that an important technical parameter refers to
Mark.
The noise of motor is that the magnetic field induction of the rotor of the Stator and electrical machine of motor causes the vibration of each part of motor to produce
Raw sound wave.The casing of motor is the maximum part that motor exposes, and is also to produce and the maximum part of transmission noise.
Traditional ventilated machine casing generally comprises housing body, and the surrounding of housing body respectively offers an axial use
In being passed through the vented cavity cooling down wind, in vented cavity, it is provided with a plurality of axial radiating ribs, the bottom of radiating ribs and housing body one
Body connects, and forms axial heat dissipation ventilation groove between adjacent two radiating ribs.The bottom of the radiating ribs in this ventilated machine casing
With housing body one be connected, and the top of radiating ribs be all expose, in free state so that the natural frequency of radiating ribs
Low, typically between 1000～10000HZ, overlapping, therefore yet with the natural frequency of radiating ribs and the working speed of motor
Easily produce resonance；Additionally, for the motor of frequency conversion, due to variable-frequency power sources chopping frequency between 2000～8000HZ it
Between, overlap with the natural frequency of radiating ribs, the most easily produce resonance.To sum up, when natural frequency and the motor of radiating ribs
Working speed overlapping overlap with the chopping frequency of variable-frequency power sources or the most overlapping with the working speed of motor but also with variable-frequency power sources
When chopping frequency overlaps, motor can produce the most sharp-pointed strong noise, and level of noise often more than 100db, has exceeded motor the most
The national standard limit value requirement to the level of noise of motor, and sharp-pointed strong noise makes us being difficult to stand, and can damage greatly
The health of people.
At present, market there are the ventilated machine casing much adding deep bead, this kind of ventilated machine casing well improve
Cooling effect.The structure of this kind of ventilated machine casing has multiple, as one of which structure is: include housing body, housing body
Periphery be wholely set at least four pieces in the deep beads of a circle arrangement, be provided with axially between every piece of deep bead and housing body
The vented cavity for being passed through cooling wind, be provided with a plurality of axial radiating ribs in vented cavity, at the bottom of radiating ribs and the chamber of vented cavity
One connects, and this ventilated machine casing is that one extrudate is made, although it compares traditional ventilated machine casing
Cooling effect has promoted, but is difficult to batch machining and produces, and causes product success rate relatively low.Another kind of structure is: include housing
Main body, the surrounding of housing body respectively offers an axial vented cavity for being passed through cooling wind, is provided with two in vented cavity
Brace rod that bar is axial and a plurality of axial radiating ribs, the bottom of brace rod and the bottom of radiating ribs all with the chamber of vented cavity at the bottom of one
Body connects, and the top of two brace rods is fixedly connected with deep bead, and deep bead is positioned at vented cavity and is positioned at all radiating ribs
Top, this ventilated machine casing is subsequent fixed being connected on brace rod due to deep bead, is not to be integrally machined formation
, therefore facilitate the processing of brace rod and radiating ribs, can produce with batch machining, improve the success rate of product, add simultaneously
The spacing between radiating ribs can be reduced during work radiating ribs, compare above-mentioned a kind of structure cooling effect more preferable.Above two structure
Ventilated machine casing be provided to promote cooling effect by arranging deep bead, and do not annex consideration cooling effect and making an uproar
Sound limits, the level of noise of the ventilated machine casing of test above two structure, finds the ventilated machine casing of the first structure
Cooling effect is poorer than the cooling effect of the ventilated machine casing of the second structure, the noise of the ventilated machine casing of the first structure
It is worth lower than the level of noise of the ventilated machine casing of the second structure, consolidating of the radiating ribs in the ventilated machine casing of the second structure
There is frequency suitable with the natural frequency of the radiating ribs in traditional ventilated machine casing.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of ventilated machine casing that can reduce high frequency noise, its
The natural frequency of the radiating ribs arranged exceedes the working speed of motor and the chopping frequency of variable-frequency power sources, would not cause resonance,
Effectively reduce the high frequency noise of motor.
This utility model solves the technical scheme that used of above-mentioned technical problem: a kind of can reduce the air-cooled of high frequency noise
Motor case, including housing body, the surrounding of described housing body respectively offer one axial for being passed through cooling wind
Vented cavity, is provided with at least one axial brace rod and a plurality of axial radiating ribs, Mei Gesuo in each described vented cavity
The bottom of the described brace rod in the vented cavity stated and the bottom of described radiating ribs all with the chamber of the vented cavity this described at the bottom of
One connects, and the top, chamber of each described vented cavity is coated with one piece of deep bead, all described in each described vented cavity
The top of brace rod be all connected with the described deep bead in the vented cavity this described, it is characterised in that: every piece of described gear
Aerofoil offers and every institute in the vented cavity described in place on the surface at the bottom of the chamber of the vented cavity described in place
The radiating ribs fixed groove that the radiating ribs stated is the most axial, every described radiating ribs in each described vented cavity
Top embed on the described deep bead in this described vented cavity in corresponding described radiating ribs fixed groove, make each
Every in vented cavity described described radiating ribs be fixed at the bottom of the chamber of this described vented cavity with in the vented cavity this described
Described deep bead between, not overlapping with the working speed of motor with the natural frequency of radiating ribs described in improving and not with change
The chopping frequency of frequency power overlaps, thus reduces the high frequency noise of motor.
Every piece of described deep bead offers the institute with place on the surface at the bottom of the chamber of the vented cavity described in place
The brace rod fixed groove that every described brace rod in the vented cavity stated is the most axial, each described vented cavity
The top of every interior described brace rod embeds described propping up corresponding on the described deep bead in this described vented cavity
In support muscle fixed groove, every described brace rod in each described vented cavity is made to be fixed on the chamber of this described vented cavity
Between described deep bead at the end and this described vented cavity.Fix here, offer brace rod on the medial surface of deep bead
Groove, be to make the top of brace rod embed in brace rod fixed groove, it is achieved deep bead is connected with the simple of brace rod.
It is provided with installation screw on every described brace rod, every piece of described deep bead is provided with fixing hole, each
Described deep bead in described vented cavity is tight with described installation screw through corresponding described fixing hole by screw
On all described brace rods being fixed in this described vented cavity.Here, utilize screw to pass corresponding fixing hole and peace
Dress screw can conveniently realize deep bead and fix with the reliable of brace rod.
It is symmetrically arranged with two axial described brace rods in each described vented cavity.Here, at each vented cavity
Inside it is symmetrical arranged two axial brace rods, can effectively ensure that the bonding strength between housing body and deep bead, certainly actual
The axial brace rod of more than two can be set during design.
Spacing between described brace rod and the described radiating ribs being adjacent and two adjacent described heat radiations
Spacing between muscle is 2～5 millimeters.Here, owing to deep bead is follow-up being connected on brace rod, therefore in processing radiating ribs
Time, it is possible to reduce the spacing between radiating ribs as much as possible, it may be assumed that between can making between brace rod and the radiating ribs being adjacent
Away from and two adjacent radiating ribs between spacing in the range of 2～5 millimeters, so can greatly promote cooling effect.
Stay between the cavity wall that the described vented cavity at the side end face vertically of every piece of described deep bead and place is corresponding
There is gap.Here, the gap left can eliminate the vibration and noise caused because of deep bead with the contacting of cavity wall of vented cavity.
The cross sectional shape on the top of described radiating ribs is consistent with the cross sectional shape of described radiating ribs fixed groove, is
Square or semicircle or triangle or trapezoidal；The cross sectional shape on the top of described brace rod and described brace rod fixed groove
Cross sectional shape consistent, be square or trapezoidal.Adding man-hour actual, the cross sectional shape on the top of radiating ribs is fixed with radiating ribs
The cross sectional shape on the cross sectional shape of groove and the top of brace rod can be all rule shape with the cross sectional shape of brace rod fixed groove
Shape or irregularly shaped, but be connected owing to the top of brace rod screw to be passed through with deep bead fastens, therefore it is required that support
The cross sectional shape of the cross sectional shape on the top of muscle and brace rod fixed groove is not the shape of pinnacle or dome, if not being triangle
Shape, be not semicircle etc., as the cross sectional shape of the cross sectional shape of radiating ribs fixed groove and the top of radiating ribs be square or
It is triangle；The cross sectional shape on the cross sectional shape of brace rod fixed groove and the top of brace rod is trapezoidal.
Compared with prior art, the utility model has the advantage of:
By being provided for the deep bead being covered on the top, chamber of vented cavity, the inner face of deep bead is offered and dispels the heat
The radiating ribs fixed groove that the top of muscle is suitable, and make brace rod after the top of radiating ribs embeds in radiating ribs fixed groove
Top and deep bead fixing is connected, this ventilated machine casing one side is connected at the bottom of the chamber of vented cavity and gear due to radiating ribs
Between the inner face of aerofoil, i.e. the two ends of radiating ribs are fixing, and therefore the natural frequency of radiating ribs changes, Jing Guoyou
Finite element analysis, the natural frequency of radiating ribs, at more than 20000HZ, greatly exceed the working speed of motor and cutting of variable-frequency power sources
Wave frequency, well avoids resonance, effectively reduces the high frequency noise of motor；On the other hand, it is follow-up due to deep bead
It is connected in brace rod and radiating ribs, is not to be integrally machined formation, therefore facilitate the processing of brace rod and radiating ribs,
Can produce product with batch machining, product success rate is high, and can reduce the spacing between radiating ribs, can effectively promote cold
But effect；I.e. this ventilated machine casing is by arranging deep bead, and offers the top with radiating ribs on the inner face of deep bead
Suitable radiating ribs fixed groove, well reduces the high frequency noise of motor while taking into account radiating effect.
Accompanying drawing explanation
Fig. 1 is the perspective view of the ventilated machine casing of embodiment one；
Fig. 2 is the enlarged diagram of part A in Fig. 1；
Fig. 3 is the axle head structural representation of the ventilated machine casing of embodiment two；
Fig. 4 is the enlarged diagram of part B in Fig. 3.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, this utility model is described in further detail.
Embodiment one:
A kind of ventilated machine casing that can reduce high frequency noise that the present embodiment proposes, as depicted in figs. 1 and 2, it includes
Housing body 1, the surrounding of housing body 1 respectively offers an axial vented cavity 11 for being passed through cooling wind, each ventilation
At least one axial brace rod 12 and a plurality of axial radiating ribs 13, the brace rod in each vented cavity 11 it is provided with in chamber 11
The bottom of 12 and the bottom of radiating ribs 13 are all connected with one at the bottom of the chamber of this vented cavity 11, brace rod 12 and the heat radiation being adjacent
Being respectively formed axial heat dissipation ventilation groove 14 between muscle 13 and between two adjacent radiating ribs 13, the top, chamber of each vented cavity 11 covers
Having one piece of deep bead 2, the top of all brace rods 12 in each vented cavity 11 is all with the deep bead 2 in this vented cavity 11 even
Connecing, every piece of deep bead 2 offers every in the vented cavity 11 with place on the surface at the bottom of the chamber of the vented cavity 11 at place
The radiating ribs fixed groove 23 that radiating ribs 13 is the most axial, the top of every the radiating ribs 13 in each vented cavity 11 is embedding
Enter in radiating ribs fixed groove 23 corresponding on the deep bead 2 in this vented cavity 11, make every heat radiation in each vented cavity 11
Muscle 13 is fixed between the deep bead 2 at the bottom of the chamber of this vented cavity 11 and in this vented cavity 11, to improve the intrinsic frequency of radiating ribs 13
Rate is not overlapping with the working speed of motor and do not overlaps with the chopping frequency of variable-frequency power sources, thus reduces the high frequency noise of motor.
In this particular embodiment, every piece of deep bead 2 towards offer on the surface at the bottom of the chamber of the vented cavity 11 at place with
The brace rod fixed groove 22 that every brace rod 12 in the vented cavity 11 at place is the most axial, in each vented cavity 11
The top of every brace rod 12 embed in brace rod fixed groove 22 corresponding on the deep bead 2 in this vented cavity 11, make every
Every brace rod 12 in individual vented cavity 11 is fixed between the deep bead 2 at the bottom of the chamber of this vented cavity 11 and in this vented cavity 11.
Here, offer brace rod fixed groove 22 on the medial surface of deep bead 2, it is to make the top of brace rod 12 embed brace rod
In fixed groove 22, it is achieved deep bead 2 is connected with the simple of brace rod 12.
In this particular embodiment, every brace rod 12 is provided with installation screw (not shown), every piece of deep bead 2
On be provided with fixing hole 21, deep bead in each vented cavity 11 2 by screw through corresponding fixing hole 21 and installation screw
It is tightly fixed on all brace rods 12 in this vented cavity 11.Here, utilize screw pass corresponding fixing hole 21 and install spiral shell
Hole can conveniently realize deep bead 2 and fix with the reliable of brace rod 12.
In this particular embodiment, two axial brace rods 12 it are symmetrically arranged with in each vented cavity 11.Here, often
It is symmetrical arranged two axial brace rods 12 in individual vented cavity 11, can effectively ensure that the connection between housing body 1 and deep bead 2
Intensity, can arrange the axial brace rod 12 of more than two during certain actual design.
In this particular embodiment, the spacing between brace rod 12 and the radiating ribs 13 being adjacent and two adjacent dissipating
Spacing between hot muscle 13 is 2～5 millimeters, as made between brace rod 12 and the radiating ribs 13 being adjacent when reality is processed
Spacing between spacing and two adjacent radiating ribs 13 is 3 millimeters.Here, owing to deep bead 2 is follow-up to be connected to brace rod
On 12, therefore when processing radiating ribs 13, it is possible to reduce the spacing between radiating ribs 13 as much as possible, it may be assumed that support can be made
The spacing between spacing and two adjacent radiating ribs 13 between muscle 12 and the radiating ribs 13 being adjacent is at 2～5 millimeters of models
In enclosing, so can greatly promote cooling effect.
In this particular embodiment, the chamber that the side end face vertically of every piece of deep bead 2 is corresponding with the vented cavity 11 at place
Gap 3 is left between wall.Here, the gap 3 left can eliminate because deep bead 2 causes with the contacting of cavity wall of vented cavity 11
Vibration and noise.
In this particular embodiment, the cross sectional shape on the top of the cross sectional shape of radiating ribs fixed groove 23 and radiating ribs 13
Unanimously, be trapezoidal；The cross sectional shape of brace rod fixed groove 22 is consistent with the cross sectional shape on the top of brace rod 12, the side of being
Shape.
Embodiment two:
A kind of ventilated machine casing that can reduce high frequency noise that the present embodiment proposes can reduce with what embodiment one proposed
The difference of the ventilated machine casing of high frequency noise is: the cross sectional shape on the top of radiating ribs fixed groove and radiating ribs is not
Identical, as shown in Figure 3 and Figure 4, i.e. the ventilated machine casing of the present embodiment includes that housing body 1, the surrounding of housing body 1 are respectively opened
It is provided with an axial vented cavity 11 for being passed through cooling wind, in each vented cavity 11, is provided with at least one axial support
Muscle 12 and a plurality of axial radiating ribs 13, the bottom of the brace rod 12 in each vented cavity 11 and the bottom of radiating ribs 13 all with should
At the bottom of the chamber of vented cavity 11, one connects, between brace rod 12 and the radiating ribs 13 being adjacent and two adjacent radiating ribs 13 it
Between be respectively formed axial heat dissipation ventilation groove 14, top, the chamber of each vented cavity 11 is coated with one piece of deep bead 2, in each vented cavity 11
The top of all brace rods 12 is all connected with the deep bead 2 in this vented cavity 11, and every piece of deep bead 2 is towards the vented cavity 11 at place
The surface at the bottom of chamber on to offer the most axial radiating ribs of every the radiating ribs 13 in the vented cavity 11 with place solid
Determining groove 23, the top of every the radiating ribs 13 in each vented cavity 11 embeds correspondence on the deep bead 2 in this vented cavity 11
In radiating ribs fixed groove 23, make every the radiating ribs 13 in each vented cavity 11 be fixed at the bottom of the chamber of this vented cavity 11 and lead to this
Between deep bead 2 in wind chamber 11, with improve the natural frequency of radiating ribs 13 not overlapping with the working speed of motor and not with change
The chopping frequency of frequency power overlaps, thus reduces the high frequency noise of motor；Every piece of deep bead 2 is towards the chamber of the vented cavity 11 at place
The brace rod anchor that every the brace rod 12 in the vented cavity 11 with place is the most axial is offered on the surface at the end
Groove 22, the top of every the brace rod 12 in each vented cavity 11 embeds support corresponding on the deep bead 2 in this vented cavity 11
In muscle fixed groove 22, every the brace rod 12 in each vented cavity 11 is made to be fixed at the bottom of the chamber of this vented cavity 11 and this vented cavity
Between deep bead 2 in 11；The cross sectional shape of radiating ribs fixed groove 23 is consistent with the cross sectional shape on the top of radiating ribs 13 equal
For semicircle, the cross sectional shape of brace rod fixed groove 22 is consistent with the cross sectional shape on the top of brace rod 12 be square.
When actual design, the cross sectional shape of radiating ribs fixed groove 23 and the cross sectional shape on the top of radiating ribs 13 and
The shape that the cross sectional shape on the cross sectional shape of support muscle fixed groove 22 and the top of brace rod 12 is given except above-mentioned two embodiment
Outward, it is also possible to use Else Rule shape or other is irregularly shaped, but owing to the top of brace rod 12 also to lead to deep bead 2
Cross screw and fasten connection, therefore it is required that the cross sectional shape on the top of brace rod 12 and the cross sectional shape of brace rod fixed groove 22
Be not the shape of pinnacle or dome, if be not triangle, not for semicircle etc., as radiating ribs fixed groove 23 cross sectional shape and
The cross sectional shape on the top of radiating ribs 13 is square or is triangle；The cross sectional shape of brace rod fixed groove 22 and support
The cross sectional shape on the top of muscle 12 is trapezoidal.
The ventilated machine casing that each embodiment above-mentioned is given is pushed up by being provided for being covered in the chamber of vented cavity 11
Deep bead 2, offers the radiating ribs fixed groove 23 suitable with the top of radiating ribs 13 on the inner face of deep bead 2, and
The top making brace rod 12 after in the top embedding radiating ribs fixed groove 23 of radiating ribs 13 is fixed with deep bead 2 and is connected, this wind
Cool electric machine casing one side is connected at the bottom of the chamber of vented cavity 11 and between the inner face of deep bead 2 due to radiating ribs 13, i.e.
The two ends of radiating ribs 13 are fixing, and therefore the natural frequency of radiating ribs 13 changes, through finite element analysis, radiating ribs 13
Natural frequency at more than 20000HZ, greatly exceed the working speed of motor and the chopping frequency of variable-frequency power sources, well keep away
Exempt from resonance, effectively reduce the high frequency noise of motor；On the other hand, it is follow-up to be connected to brace rod 12 due to deep bead 2
With in radiating ribs 13, it is not to be integrally machined formation, therefore facilitates brace rod 12 and the processing of radiating ribs 13, can criticize
Amount processing product, product success rate is high, and can reduce the spacing between radiating ribs 13, can effectively promote cooling effect
Really；I.e. this ventilated machine casing is by arranging deep bead 2, and offers on the inner face of deep bead 2 and the top of radiating ribs 13
Suitable radiating ribs fixed groove 23, well reduces the high frequency noise of motor while taking into account radiating effect.
In each embodiment above-mentioned, the length of deep bead 2 may be designed to the length less than housing body 1, and deep bead 2
Rear end flushes with the rear end of housing body 1, can be than housing body 1 by the Design of length of deep bead 2 in actual design process
Length short 50～150 millimeters, as short 100 millimeters, so at the front end self-assembling formation air outlet of housing body 1, ensureing
On the premise of cooling wind cools housing body 1 effectively, save rapidoprint.
In each embodiment above-mentioned, the making material of housing body 1 and deep bead 2 all uses aluminum, and housing body
1, brace rod 12, radiating ribs 13 are entirely through extruded so that the length of housing body 1 can design according to the actual requirements.
In each embodiment above-mentioned, specifically adding man-hour, can one piece of deep bead 2, radiating ribs 13 and housing master therethrough
Body 1 offers one for seeing Fig. 1 by the through wires hole 4(of the power line of motor), this block deep bead 2 connects motor wiring
Box (not shown).
It should be noted that and the foregoing is only preferred embodiment of the present utility model, not thereby limit this practicality new
The scope of patent protection of type, this utility model can also carry out the improvement of material and structure to the structure of above-mentioned various parts,
Or use technically equivalent ones to be replaced.Therefore the equivalence knot that all utilization description of the present utility model and diagramatic content are made
Structure changes, or directly or indirectly applies to other correlative technology fields and be the most all contained in the scope that this utility model is contained
In.
Claims (7)
1. can reduce a ventilated machine casing for high frequency noise, including housing body, the surrounding of described housing body is respectively opened
It is provided with an axial vented cavity for being passed through cooling wind, in each described vented cavity, is provided with at least one axial propping up
Support muscle and a plurality of axial radiating ribs, the bottom of the described brace rod in each described vented cavity and described radiating ribs
Bottom is all connected with one at the bottom of the chamber of the vented cavity this described, and the top, chamber of each described vented cavity is coated with one piece of deep bead,
The top of all described brace rods in each described vented cavity all with the described deep bead in the vented cavity this described
Connect, it is characterised in that: every piece of described deep bead towards offer on the surface at the bottom of the chamber of the vented cavity described in place with
The radiating ribs fixed groove that every described radiating ribs in the described vented cavity at place is the most axial, each described
Vented cavity in the top of every described radiating ribs embed on the described deep bead in this described vented cavity corresponding
In described radiating ribs fixed groove, every described radiating ribs in each described vented cavity is made to be fixed on this described leading to
Between described deep bead at the bottom of the chamber in wind chamber and in this described vented cavity, with improve described in radiating ribs natural frequency not
Overlapping with the working speed of motor and do not overlap with the chopping frequency of variable-frequency power sources, thus reduce the high frequency noise of motor.
A kind of ventilated machine casing that can reduce high frequency noise the most according to claim 1, it is characterised in that: described in every piece
Deep bead every towards offer on the surface at the bottom of the chamber of the vented cavity described in place with in the vented cavity described in place
The brace rod fixed groove that brace rod described in bar is the most axial, in each described vented cavity every described
The top of support muscle embeds in described brace rod fixed groove corresponding on the described deep bead in this described vented cavity, makes
Every described brace rod in each described vented cavity be fixed at the bottom of the chamber of this described vented cavity with the ventilation this described
Between the described deep bead of intracavity.
A kind of ventilated machine casing that can reduce high frequency noise the most according to claim 2, it is characterised in that: described in every
Brace rod on be provided with installation screw, every piece of described deep bead is provided with fixing hole, in each described vented cavity
Described deep bead is tightly fixed on this described leading to by screw through corresponding described fixing hole and described installation screw
On all described brace rods of wind intracavity.
A kind of ventilated machine casing that can reduce high frequency noise the most according to any one of claim 1 to 3, its feature exists
In: it is symmetrically arranged with two axial described brace rods in each described vented cavity.
A kind of ventilated machine casing that can reduce high frequency noise the most according to claim 1, it is characterised in that: described props up
Support muscle and the described radiating ribs being adjacent between spacing and two adjacent described radiating ribs between spacing be 2～
5 millimeters.
A kind of ventilated machine casing that can reduce high frequency noise the most according to claim 1, it is characterised in that: described in every piece
Cavity wall corresponding to the described vented cavity at side end face vertically and place of deep bead between leave gap.
A kind of ventilated machine casing that can reduce high frequency noise the most according to claim 2, it is characterised in that: described dissipates
The cross sectional shape on the top of hot muscle is consistent with the cross sectional shape of described radiating ribs fixed groove, is square or semicircle or three
Dihedral or trapezoidal；The cross sectional shape on the top of described brace rod is consistent with the cross sectional shape of described brace rod fixed groove,
It is square or trapezoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620641881.XU CN205829364U (en) | 2016-06-22 | 2016-06-22 | A kind of ventilated machine casing that can reduce high frequency noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620641881.XU CN205829364U (en) | 2016-06-22 | 2016-06-22 | A kind of ventilated machine casing that can reduce high frequency noise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205829364U true CN205829364U (en) | 2016-12-21 |
Family
ID=58146522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620641881.XU Active CN205829364U (en) | 2016-06-22 | 2016-06-22 | A kind of ventilated machine casing that can reduce high frequency noise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205829364U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111092511A (en) * | 2019-12-11 | 2020-05-01 | 珠海格力电器股份有限公司 | Motor heat radiation structure and servo motor |
-
2016
- 2016-06-22 CN CN201620641881.XU patent/CN205829364U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111092511A (en) * | 2019-12-11 | 2020-05-01 | 珠海格力电器股份有限公司 | Motor heat radiation structure and servo motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205829364U (en) | A kind of ventilated machine casing that can reduce high frequency noise | |
| CN206193670U (en) | Heat dissipation structure of computer | |
| CN103296823B (en) | A kind of electric machine casing of ventilated machine | |
| CN203632380U (en) | Motor for blower fan | |
| CN105099043A (en) | Variable-frequency motor | |
| CN103956849A (en) | Wind-cooling motor combined shell | |
| CN209608521U (en) | A kind of energy-efficient frequency conversion three-phase permanent-magnetic synchronous motors | |
| CN204947777U (en) | A kind of variable-frequency motor | |
| CN207304221U (en) | A kind of motor housing | |
| CN209119909U (en) | Air water cooling for stator core direct cooling mode but structure | |
| CN203522406U (en) | Grinding head motor capable of well dissipating heat | |
| CN214543996U (en) | Brushless motor heat dissipation structure using outer rotor to rotate to form forced air duct | |
| CN203871964U (en) | Combined shell of wind cooling motor | |
| CN206135600U (en) | Dustproof motor of energy -conserving high -efficient heat dissipation | |
| CN203368207U (en) | Air-cooled motor shell | |
| CN208241524U (en) | A kind of motor and rotor | |
| CN207339609U (en) | A kind of flame proof high-efficient heat-dissipating threephase asynchronous | |
| CN110138143A (en) | A kind of generator with radiating ribs | |
| CN220107702U (en) | Motor shell and motor | |
| CN210573651U (en) | Computer power safety device | |
| CN217789089U (en) | Converter overcurrent protection circuit device | |
| CN210183205U (en) | Be applied to outer rotor brushless motor of broken wall machine | |
| CN220134221U (en) | Combined type cooling fan | |
| CN219107236U (en) | Motor | |
| CN215344171U (en) | Permanent magnet servo motor casing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |