CN208225513U - A kind of motor liner noise-reducing structure - Google Patents
A kind of motor liner noise-reducing structure Download PDFInfo
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- CN208225513U CN208225513U CN201820793213.8U CN201820793213U CN208225513U CN 208225513 U CN208225513 U CN 208225513U CN 201820793213 U CN201820793213 U CN 201820793213U CN 208225513 U CN208225513 U CN 208225513U
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- Prior art keywords
- air inlet
- air
- back cover
- noise
- reducing structure
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Abstract
The utility model is a kind of motor liner noise-reducing structure, including front shroud, back cover and cover plate, the outer surface of the front shroud is provided with air inlet hole, front shroud is internally provided with the chamber for placing motor, and the outer surface of the back cover is provided with air inlet duct, and back cover is internally connected with rear washer, and back cover is sponge, the surface of washer is provided with follow block and ventilation slot after described, and air inlet hole is connected with air inlet duct, and outside air is allowed to enter in chamber by air inlet hole, air inlet duct by cover plate and ventilation slot；The motor liner noise-reducing structure is different from the mode of the direct air inlet of previous tail end, and air is carried out water conservancy diversion by different air intake passages and has effectively dispersed the flow of air inlet so that air velocity is controlled, to reduce airborne noise.
Description
Technical field
The utility model relates to a kind of motor liner noise-reducing structures.
Background technique
In the prior art, HVLP spray gun generally use high-revolving motor progress operation, and this high-speed rotating motor
It is required to carry out a large amount of air draught processing, and usually air inlet is arranged in fuselage tail end, so that this conventional lance
Have following structure disadvantage: air duct is single, and air is directly sucked from fuselage tail end, causes the noise of high-decibel, at the same tail end into
The noise sound source of gas high-decibel is closer apart from human body, during use it is also possible that foreign matter is adsorbed on air inlet, thus stifled
Unique air inlet is filled in, security risk is easy to appear.
Utility model content
The utility model mainly solves technical problem present in the prior art, thus provide one kind can be effectively reduced into
Wind noise is avoided because occurring air inlet blocking, the motor liner of effective guarantee motor using effect and service life in the case of foreign matter
Noise-reducing structure.
The utility model is a kind of motor liner noise-reducing structure, including front shroud, and the back cover matched with front shroud, after described
Cover is internally provided with cover plate, and the outer surface of the front shroud is provided with air inlet hole, and front shroud is internally provided with chamber, the back cover it is outer
Surface is provided with air inlet duct, and back cover is internally connected with rear washer, and the surface of rear washer is provided with ventilation slot, the back cover it is interior
Surface is also connected with the support block for being used to support cover plate, and cover plate surface is provided with gap, and the air inlet hole, gap, leads to air inlet duct
It is interconnected between wind groove and cavity.
Preferably, be connected with front shroud in front of the back cover, the front shroud is internally provided with chamber, in chamber
Portion is connected with preceding washer, and the center of the preceding washer is provided with vent, and is connected between vent and chamber, ventilation slot
, connection between front shroud and back cover can also allow motor directly by snap fit connection to be connected by screw rod
It can be placed in the chamber inside front shroud, and motor limited by preceding washer, by vent by the indoor sky of chamber
Gas discharge, to reach the circulation effect of chamber interior air.
Preferably, the outer surface of the front shroud is connected with air inlet hole, and is interconnected between air inlet hole and air inlet duct, make
Outside air is obtained to enter in air inlet duct by the air inlet hole of preceding cover outer surface, to increase shunting effect when air circulation, from
And reduce the issuable noise of air circulation institute.
Preferably, the air inlet hole and air inlet duct are respectively arranged with one or more, and every air inlet hole and air inlet duct
Between be interconnected respectively, by connection corresponding between a plurality of air inlet hole and air inlet duct design effectively air can be carried out
Water conservancy diversion processing, the possibility for not only avoiding air inlet hole from occurring blocking also reduce the issuable noise of air inlet when institute.
Preferably, air inlet duct inner surface setting is fluted, the groove through rear cover inner surface and with gap phase
Connection enables the air entered in air inlet duct to be flowed into back cover center by groove, when effectively avoiding air circulation
There are four scattered problems.
Preferably, the groove depth distance of the groove is a, the groove depth a range of the groove is in 10mm-30mm, more into one
Step increases air inlet duct to the diversion effect of air, and four scattered possibility occurs in the air for avoiding air inlet duct discharge, effective to increase
The intake of back cover inner air is added.
Preferably, the inner surface of the back cover is connected with support block, the center of rear washer is provided with follow block, the support block with
Follow block is generally aligned in the same plane and is in contact with cover plate, enables follow block that cover plate is limited and supported with support block, effectively
Avoid cover plate from the damaged problem of deformation occur.
Preferably, the follow block is male type structure, and the ventilation slot of rear washer surround the outside with follow block, by outer
The follow block of convex shape is not only supported cover plate, also effectively raises the air circulation effect between cover plate and ventilation slot
Fruit, and ventilation slot is allowed to shunt air, reduce the issuable noise of air institute.
Preferably, being interference fitted between the cover plate and back cover, the cover plate is filter cotton, enables cover plate fine
Be mounted on inside back cover, the noise reduction effect to be filtered to the dust in outside air, and when increasing air circulation.
The beneficial effects of the utility model are: since the outer surface of front shroud and back cover is respectively arranged with air inlet hole and air inlet
Road, and air inlet hole and air inlet duct are interconnected, so that outside air can just enter inside back cover by air inlet hole and air inlet duct,
The case where fuselage tail end employed in conventional motor air inlet structure is directly sucked in air is changed, air is reduced and passes through in stream
The issuable noise of institute in journey, and inside back cover the setting of cover plate the large-scale impurity in outside air can not only be carried out every
From there is the problem of air can not circulate when avoiding motor work, moreover it is possible to it is effective to weaken vibration caused by air, into one
The decibel of the reduction noise of air of step；And back cover is internally connected with rear washer, the surface of rear washer is provided with ventilation slot, so that
Ventilation slot can will go into the air in back cover and carry out reasonable water conservancy diversion, and it is issuable to not only reduce air circulation when institute
Noise also increases motor inner air circulation effect；And cover plate can be placed on rear washer every sky by follow block and support block
Rear effectively prevents the problem of influencing air circulation because of cover plate blocking ventilation slot, further improves extraneous sky
Gas improves product using effect and safety in utilization to front shroud inner cavity chamber motor circulation effect.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of overall structure diagram of motor liner noise-reducing structure of the utility model；
Fig. 2 is the matching chart of front shroud and back cover in a kind of motor liner noise-reducing structure of the utility model；
Fig. 3 is the overall structure figure of back cover in a kind of motor liner noise-reducing structure of the utility model；
Fig. 4 is the overall structure figure of front shroud in a kind of motor liner noise-reducing structure of the utility model.
Specific embodiment
The preferred embodiment of the utility model is described in detail with reference to the accompanying drawing, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, to make the protection scope of the utility model apparent clear
Define.
A kind of motor liner noise-reducing structure as shown in Figures 1 to 4, including front shroud 1, and the back cover matched with front shroud 1
2, the back cover 2 is internally provided with cover plate 3, and the outer surface of the front shroud 1 is provided with air inlet hole 11, and front shroud 1 is internally provided with chamber
Room 14, the outer surface of the back cover 2 are provided with air inlet duct 21, and back cover 2 is internally connected with rear washer 22, the surface of rear washer 22
It is provided with ventilation slot 23, the inner surface of the back cover 2 is also connected with the support block 26 for being used to support cover plate 3, and 3 surface of cover plate is arranged
There is gap 25, is interconnected between the air inlet hole 11, air inlet duct 21, gap 25, ventilation slot 23 and cavity 14.
The front of the back cover 2 is connected with front shroud 1, and the front shroud 1 is internally provided with chamber 14, inside chamber 14
Washer 12 before being connected with, the center of the preceding washer 12 are provided with vent 13, and vent 13 and chamber 14, ventilation slot 23 it
Between be connected, the connection between front shroud 1 and back cover 2 can directly can also pass through snap fit to be connected by screw rod
Connection, allows motor can be placed in the chamber 14 inside front shroud, and limit by preceding washer 12 to motor, passes through air draft
Air in chamber 14 is discharged in hole 13, to reach the circulation effect of 14 inner air of chamber.
The outer surface of the front shroud 1 is connected with air inlet hole 11, and is interconnected between air inlet hole 11 and air inlet duct 21, so that
Outside air is entered in air inlet duct 21 by the air inlet hole 11 of 1 outer surface of front shroud, to increase shunting effect when air circulation,
To reduce the issuable noise of air circulation.
The air inlet hole 11 is respectively arranged with one or more with air inlet duct 21, and every air inlet hole 11 and air inlet duct 21 it
Between be interconnected respectively, by connection corresponding between a plurality of air inlet hole 11 and air inlet duct 21 design can effectively by air into
The processing of row water conservancy diversion, the possibility for not only avoiding air inlet hole 11 from occurring blocking also reduce the issuable noise of air inlet when institute.
21 inner surface of air inlet duct setting fluted 24, the groove 24 through 2 inner surface of back cover and with 25 phase of gap
Connection enables the air entered in air inlet duct 21 to be flowed into 2 center of back cover by groove 24, effectively avoids air stream
Occur four scattered problems when logical.
The groove depth distance of the groove 24 is a, and the groove depth a range of the groove 24 increases air inlet duct in 10mm-30mm
There are four scattered possibility, are effectively increased in back cover 2 in the diversion effect of 21 pairs of air, the air for avoiding the discharge of air inlet duct 21
The intake of portion's air.
The inner surface of the back cover 2 is connected with support block 26, and the center of rear washer 22 is provided with follow block 221, the support block 26
It is generally aligned in the same plane with follow block 221 and is in contact with cover plate 3, follow block 221 limits cover plate 3 with support block 26
With support, cover plate 3 is effectively avoided the damaged problem of deformation occur.
The follow block 221 is male type structure, and the ventilation slot 23 of rear washer 22 passes through around the outside with follow block 221
The follow block 221 of male type structure is not only supported cover plate 3, avoids to divulge information because cover plate 3 is fitted on the outside of rear washer 22
Slot 23 blocks, and also improves the air circulation effect between cover plate 3 and ventilation slot 23, and ventilation slot 23 is allowed to be divided air
Stream reduces the issuable noise of air institute.
It is interference fitted between the cover plate 3 and back cover 2, the cover plate 3 is filter cotton, so that cover plate 3 can be good at pacifying
Noise reduction effect inside back cover 2, to be filtered to the dust in outside air, and when increasing air circulation.
The motor liner noise-reducing structure is placed in the chamber 14 inside front shroud 1 by motor, by bolt or buckle will before
Cover 1 cooperates with back cover 2 and connects, and is limited motor by the setting of preceding washer 12 and rear washer 22, so that air inlet
Hole 11 is connected with air inlet duct 21, and cover plate 3 is then located at the rear of support block 26 and follow block 221, will by support block 26 and follow block 221
Cover plate 3 carries out limited support so that cover plate 3 is placed on 23 rear of ventilation slot of rear washer 22 every sky, allow outside air pass through into
Air holes 11, air inlet duct 21 and groove 24 enter in back cover 3, and pass through the ventilation in the gap 25 on 2 surface of back cover and rear washer 22
Slot 23 is entered in the chamber 14 for placing motor and is circulated, the air draft that air passes through washer 12 before 1 front end of front shroud after recycling
Hole 13 be discharged, air is once turned to air inlet duct 21 by air inlet hole 11, then pass through air inlet duct 21 groove 24 and
Air is carried out secondary steering by cover plate 3, is then shunted air by the ventilation slot 23 of rear washer 22, is effectively reduced
Institute's issuable noise when air circulation, changes regular air and directly passes through ventilation hole and enter situation inside motor,
The distance between ventilation hole and user are increased, the noise that user can hear is further reduced.
The beneficial effects of the utility model are: since the outer surface of front shroud and back cover is respectively arranged with air inlet hole and air inlet
Road, and air inlet hole and air inlet duct are interconnected, so that outside air can just enter inside back cover by air inlet hole and air inlet duct,
The case where fuselage tail end employed in conventional motor air inlet structure is directly sucked in air is changed, air is reduced and passes through in stream
The issuable noise of institute in journey, and inside back cover the setting of cover plate the large-scale impurity in outside air can not only be carried out every
From there is the problem of air can not circulate when avoiding motor work, moreover it is possible to it is effective to weaken vibration caused by air, into one
The decibel of the reduction noise of air of step；And back cover is internally connected with rear washer, the surface of rear washer is provided with ventilation slot, so that
Ventilation slot can will go into the air in back cover and carry out reasonable water conservancy diversion, and it is issuable to not only reduce air circulation when institute
Noise also increases motor inner air circulation effect；And cover plate can be placed on rear washer every sky by follow block and support block
Rear effectively prevents the problem of influencing air circulation because of cover plate blocking ventilation slot, further improves extraneous sky
Gas improves product using effect and safety in utilization to front shroud inner cavity chamber motor circulation effect.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, any change or replacement expected without creative work be should be covered within the scope of the utility model.
Therefore, the protection scope of the utility model should be determined by the scope of protection defined in the claims.
Claims (9)
1. a kind of motor liner noise-reducing structure, it is characterised in that: including back cover, and the cover plate inside back cover is arranged in, after described
Cover outer surface is connected with air inlet duct, and back cover is internally connected with rear washer, and the surface of the rear washer is provided with ventilation slot, the cover
Plate is located at the rear of rear washer, and the surface of cover plate is provided with gap, and is interconnected between air inlet duct, gap and ventilation slot.
2. a kind of motor liner noise-reducing structure according to claim 1, it is characterised in that: the front of the back cover, which cooperates, to be connected
It is connected to front shroud, the front shroud is internally provided with chamber, and chamber interior is connected with preceding washer, and the center of the preceding washer is provided with
Vent, and be connected between vent and chamber, ventilation slot.
3. a kind of motor liner noise-reducing structure according to claim 2, it is characterised in that: the outer surface of the front shroud connects
There is air inlet hole, and is interconnected between air inlet hole and air inlet duct.
4. a kind of motor liner noise-reducing structure according to claim 3, it is characterised in that: the air inlet hole and air inlet duct are equal
It is respectively arranged with one or more, and is interconnected respectively between every air inlet hole and air inlet duct.
5. a kind of motor liner noise-reducing structure according to claim 4, it is characterised in that: the air inlet duct inner surface setting
Fluted, the groove is connected through rear cover inner surface and with gap.
6. a kind of motor liner noise-reducing structure according to claim 5, it is characterised in that: the groove depth distance of the groove is
A, and the groove depth a range of groove is in 10mm-30mm.
7. a kind of motor liner noise-reducing structure according to claim 1, it is characterised in that: the inner surface of the back cover connects
There is support block, the center of rear washer is provided with follow block, and the support block is generally aligned in the same plane with follow block and is in contact with cover plate.
8. a kind of motor liner noise-reducing structure according to claim 7, it is characterised in that: the follow block is male type knot
Structure, and the ventilation slot of rear washer is around the outside with follow block.
9. a kind of motor liner noise-reducing structure according to any one of claims 1 to 8, it is characterised in that: the cover plate with
It is interference fitted between back cover, the cover plate is filter cotton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820793213.8U CN208225513U (en) | 2018-05-25 | 2018-05-25 | A kind of motor liner noise-reducing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820793213.8U CN208225513U (en) | 2018-05-25 | 2018-05-25 | A kind of motor liner noise-reducing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208225513U true CN208225513U (en) | 2018-12-11 |
Family
ID=64506677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820793213.8U Active CN208225513U (en) | 2018-05-25 | 2018-05-25 | A kind of motor liner noise-reducing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208225513U (en) |
-
2018
- 2018-05-25 CN CN201820793213.8U patent/CN208225513U/en active Active
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