CN202937708U - Smoke exhaust ventilator and vibration reducing pad - Google Patents
Smoke exhaust ventilator and vibration reducing pad Download PDFInfo
- Publication number
- CN202937708U CN202937708U CN 201220403401 CN201220403401U CN202937708U CN 202937708 U CN202937708 U CN 202937708U CN 201220403401 CN201220403401 CN 201220403401 CN 201220403401 U CN201220403401 U CN 201220403401U CN 202937708 U CN202937708 U CN 202937708U
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- main body
- damping pad
- vibration
- face
- flange
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Abstract
The utility model provides a vibration reducing pad and a smoke exhaust ventilator applying the vibration reducing pad. The vibration reducing pad comprises a columnar main body (1) and a stress relieving body. An axially penetrating through hole (2) is arranged inside the main body, and the middle portion of the lateral side of the main body is provided with an annular groove (3). The stress relieving body is located on at least one of the upper end face and the lower end face of the main body (1). At least one of the upper end face and the lower end face of the main body (1) of the vibration reducing pad is provided with the stress relieving body, the stress relieving body can remarkably eliminate stress after the main body (1) is installed, and the vibration reducing pad can effectively block and absorb vibration. When the vibration reducing pad is applied to the smoke exhaust ventilator, the vibration can be effectively reduced, and the noise decreasing effect is played.
Description
Technical field
The invention relates to range hood field, particularly a kind of damping pad and a kind of range hood for range hood.
Background technique
The height of range hood operating noise is an important indicator weighing the range hood quality, and the range hood operating noise causes because motor produces vibration in the course of the work usually.For reaching the purpose of vibration silencer, usually all can increase rubber pad or spring pad between the fixed position of fume exhauster motor and range hood spiral case.But, existing rubber pad or spring pad are after assembling, its inner existence is very high-prestressed, thereby effectiveness in vibration suppression is undesirable, like this, even these rubber pads or spring pad have been installed, the Oscillation Amplitude of whole installation system is still larger, be prone to the situation of unstability shake, and then cause noise larger.And, due to these rubber pads or spring pad exist in it after assembling very high-prestressed, thereby their easy damages, and then make the shortening of their effective lifes, thus affect the safe handling time limit of whole range hood.
The innovation and creation content
The invention is to be solved is that in above-mentioned prior art, range hood can't play necessary damping effect with rubber pad or spring pad owing to existing more high-prestressed, can not eliminate well the technical problem of noise.For this reason, the invention provides the damping pad that the range hood of a kind of effectively vibration damping and noise reduction is used.The damping pad that the invention provides comprises:
Main body is column, and inside has the through hole that axially runs through along it, and the middle part, side has annular groove;
Stress is eliminated body, is arranged at least one end face of upper-end surface and the lower end surface of described main body.
Optionally, to eliminate body be a plurality of projections for described stress.
Optionally, cylindrical, spherical, the taper shape of described projection or frustroconical.
Optionally, described projection is uniformly-spaced arranged along the circumference of described end face.
Optionally, to eliminate body be flange for described stress.
Optionally, described flange extends upward formation from the edge of described end face.
Optionally, the outward edge diameter of described flange is greater than the outward edge diameter of described end face.
Compared with prior art, the damping pad that the invention provides is provided with stress and eliminates body on the upper-end surface of main body and at least one end face in the lower end surface, this stress is eliminated body can significantly eliminate damping pad installation its interior prestressing force afterwards, make damping pad can effectively stop and absorb vibration, when the damping pad that provides when the invention is applied to range hood, can effectively reduce vibration, reach the effect of noise decrease.
Compared with prior art, the damping pad that the invention provides, it is relatively independent two-part that the main body that it is included and stress are eliminated body, in the possibility of the invention, stress eliminates that body has comprised a plurality of projections or along the flange of whole end face, like this, even eliminating body, stress divides damage, as long as the other parts of body of eliminating stress can continue to provide the effect of stress elimination and vibration damping, whole damping pad can also continue safe handling, makes the life time of damping pad longer.
The invention also provides a kind of range hood, comprising: motor, spiral case, screw and damping pad as above;
The flange plate marginating compartment of described motor is provided with at least two draw-in grooves;
Described damping pad passes through the annular groove holding at middle part, main body side in each described draw-in groove;
Described screw passes the through hole of described damping pad and locks screw on described spiral case, makes described motor be arranged on described spiral case.
Compared with prior art, the range hood that the invention provides has been used the damping pad that the invention provides, and fix described damping pad between the motor and spiral case of kitchen ventilator by screw, thereby make the vibration of whole range hood and noise effectively be decayed, and, the damping pad that uses the invention to provide because this damping pad is more durable, also makes the safe handling time limit of whole range hood structure longer.
Description of drawings
The schematic diagram of the damping pad that Fig. 1 provides for the invention the first embodiment;
The plan view of the damping pad that Fig. 2 provides for the invention the first embodiment;
The plan view of the damping pad that Fig. 3 provides for the invention the first embodiment;
Fig. 4 is the cut-away view that the damping pad in Fig. 3 cuts along the I-I line;
The schematic diagram of the damping pad that Fig. 5 provides for the invention the second embodiment;
The plan view of the damping pad that Fig. 6 provides for the invention the second embodiment;
The plan view of the damping pad that Fig. 7 provides for the invention the second embodiment;
Fig. 8 is the cut-away view that the damping pad in Fig. 7 cuts along the II-II line;
The schematic diagram of the range hood that Fig. 9 provides for the invention embodiment.
1-main body 2-through hole 3-groove 4-projection 5-flange
6-motor 7-spiral case
8-screw 81-screw head 9-packing ring
Embodiment
The invention can't be played necessary damping effect for solving the rubber pad or the spring pad that are used for range hood in prior art because existence is more high-prestressed, and then can not eliminate well the problem of noise, and a kind of damping pad is provided.
Please refer to Fig. 1 to Fig. 4, the damping pad that the invention the first embodiment provides as shown in Figures 1 to 4.
Please refer to Fig. 1, the schematic diagram of the damping pad that Fig. 1 provides for the invention the first embodiment.As can see from Figure 1, damping pad includes the main body 1 that is column, and main body 1 inside has along its through hole that axially runs through 2, and main body 1 middle part, side has annular groove 3 simultaneously.In addition, the upper and lower end face of main body 1 also comprises stress elimination body.Need to prove, main body 1 need all not include stress elimination body in the upper and lower end face simultaneously, can only have an end face to include stress and eliminate body, but in this enforcement, the upper and lower end face includes stress elimination body simultaneously, like this can be so that damping pad reaches better vibration damping erasure effect.As can see from Figure 1, in the present embodiment, stress is eliminated body and is comprised a plurality of protruding 4.
Please refer to Fig. 2, the plan view of the damping pad that Fig. 2 provides for the invention the first embodiment.Can further see from Fig. 2, groove 3 is positioned at main body 1 middle part.Projection 4 exceeds the upper and lower end face certain altitude.Because projection 4 exceeds the upper and lower end face certain altitude, thereby, when damping pad is connected with corresponding part, can form clearance spaces between the upper and lower end face of connected element and damping pad.The pressure that a plurality of existence of protruding 4 can make damping pad bear is dispersed in each projection 4, makes the prestressing force of damping pad reduce, and makes damping pad absorb better vibration in the vibration processes of whole connected system, eliminates noise.And the existence of above-mentioned clearance spaces can make the vibration processes of whole connected system, makes the vibration of connected element be absorbed by clearance spaces, further reaches the effect of vibration damping noise reduction.
Please refer to Fig. 3, the plan view of the damping pad that Fig. 3 provides for the invention the first embodiment.As can see from Figure 3, the upper-end surface of main body 1 is ring, and projection 4 is uniformly-spaced arranged along the circumference of upper-end surface.This arrangement mode be conducive to damping pad install after with stress equilibrium be distributed on each projection 4; it is the preferred arrangement mode of the present embodiment institute; but the scheme that the invention is protected is not limited to this arrangement mode, and in other embodiments, projection 4 also can be arranged otherwise.
Please refer to Fig. 4, Fig. 4 is the cut-away view that the damping pad in Fig. 3 cuts along the I-I line.In Fig. 4, can see obviously that through hole 2 runs through whole main body 1.In addition, as can see from Figure 4, the present embodiment protrusions 4 is connected as a single entity with main body 1.Although projection 4 is connected as a single entity with main body 1, but they still keep two relatively independent parts, like this even partly protruding 4 be damaged, main body 1 can remain intact, in the situation that other projection 4 can also the support and connection parts, whole damping pad still can normally use, and still keeps good vibration damping erasure effect simultaneously, makes damping pad more durable.In this enforcement, projection 4 can adopt the mode of global formation to make with main body 1, but in other embodiments, links together after projection 4 and main body 1 also can be made respectively again.Simultaneously, the material of projection 4 can be identical with the material of main body 1, but the material of projection 4 also can be followed the material difference of main body 1 and adopt more soft material to make, to reach better vibration damping sound deadening.Need to prove, in the present embodiment, be positioned at a plurality of protruding 4 cylindrical on described end face, in other embodiments, projection 4 can be also spherical in shape, conical, frustroconical or other stero shape.
Please refer to Fig. 5 to Fig. 8, the damping pad that the invention the second embodiment provides such as Fig. 5 are to shown in Figure 8.
Please refer to Fig. 5, the schematic diagram of the damping pad that Fig. 5 provides for the invention the second embodiment.As can see from Figure 5, the damping pad that the present embodiment provides is the same with the damping pad that the first embodiment provides, and has main body 1, through hole 2 and groove 3.But difference is, in the present embodiment, to eliminate body be flange 5 on main body 1 upper and lower end face to stress, but not the projection 4 in the first embodiment.Same, main body 1 also nonessentially all must include flange 5 in the upper and lower end face simultaneously, can only have an end face to include flange 5, but in this enforcement the upper and lower end face include simultaneously flange 5 can be so that damping pad reaches better vibration damping erasure effect.
Please refer to Fig. 6, the plan view of the damping pad that Fig. 6 provides for the invention the second embodiment.As can see from Figure 6, the outward edge of the flange 5 of the damping pad that the present embodiment provides is wider than main body 1, and namely the outer diameter of flange 5 is greater than the outer diameter of main body 1.Like this, flange 5 is eliminated body as stress, can have larger area to be used for being connected with other parts, makes damping pad connect and plays better stress elimination effect afterwards, thereby reach better effectiveness in vibration suppression, and then played better erasure effect.
Please refer to Fig. 7, the plan view of the damping pad that Fig. 7 provides for the invention the second embodiment.As can see from Figure 7, the upper-end surface of main body 1 is ring, and flange 5 is positioned at main body 1 upper-end surface as the loudspeaker opening, can draw from Fig. 5, Fig. 6 and Fig. 7, and between the end face of flange 5 and main body 1, part is connected.This Placement makes between main body 1 and flange 5 and also have clearance spaces except the part that is connected, when this clearance spaces makes damping pad be connected rear vibration-generating with other parts, connected element or flange 5 can move up and down in this clearance spaces, reach the effect that absorbs vibration.Same, due to the existence of flange 5, the prestressing force of main body 1 can reduce, and makes whole damping pad can play better vibration damping erasure effect.
Fig. 8 is the cut-away view that the damping pad in Fig. 7 cuts along the II-II line.Can see obviously that from Fig. 8 through hole 2 axially runs through whole main body 1 along main body 1.Can also see from Fig. 8 in addition, in the present embodiment, flange 5 is connected as a single entity with main body 1.Can adopt the mode of global formation to make flange 5 and main body 1, but flange 5 and main body 1 link together again after also can making respectively.Because flange 5 and main body 1 belong to two relatively independent parts; like this; even flange 5 parts are damaged; main body 1 can remain intact; in the situation that flange 5 other parts can also the support and connection parts; whole damping pad still can normally use, and still protects good vibration damping erasure effect simultaneously, makes damping pad more durable.
Please refer to Fig. 9, the schematic diagram of the range hood that Fig. 9 provides for the invention embodiment.This range hood comprises motor 6, spiral case 7, screw 8 and damping pad as above.Although do not illustrate in Fig. 9, the flange plate marginating compartment of motor 6 is provided with at least two draw-in grooves, and annular groove 3 holdings of damping pad by main body 1 side middle part are in each described draw-in groove of motor 6.Spiral case 7 includes screw, and screw 8 passes the through hole 2 that is placed in the damping pad in draw-in groove and locks screw on spiral case 7, makes described motor 6 be arranged on described spiral case 7.
Please continue with reference to figure 9, as can see from Figure 9, screw 8 includes a screw head 81, demonstrate screw head 81 in the present embodiment and be " one " font screw head, but in other embodiments, screw 8 can be also " ten " font screw head.In addition, be provided with a packing ring 9 below screw head 81.Packing ring 9 can be to be joined together to form an integral body with screw 8, can be also as with screw 8 parts independently mutually.
The damping pad with flange 5 (damping pad that employing has projection 4 can produce same effect) that the present embodiment adopts the invention to provide.Concrete, damping pad is placed in the draw-in groove of motor 6, screw 8 pass after through hole 2 on damping pad main body 1 with spiral case 7 on being threaded of screw.Screw 8 is screwed down when pushing after passing main body 1, and at first the pressure that damping pad is subject to absorbed by flange 5, and flange 5 just can reduce main body 1 installation prestressing force afterwards like this.When motor 6 produced vibration, the vibration meeting stopped and absorbs by flange 5, and also had clearance spaces between the upper and lower end face of flange 5 and main body 1, and this just makes vibration to be eliminated in this clearance spaces, has effectively reduced the transmission of vibrational energy.Simultaneously, the main body 1 that flange 5 is set itself has enough intensity, can guarantee that damping pad has the lower natural frequency of vibration and enough dampings.
The range hood that the invention embodiment provides satisfies the formula of General Oscillation transmissibility T, i.e. T=1/[2 (f/f
0)-1], wherein F is the vibration frequency of vibration source, f
0Be the natural frequency of elastic damping system, vibration transmissibility T represents to act in total perturbed force of device has pass to supporting structure or basis through vibration reducing members for how many shares.T is less for the vibration transmission efficiency, and the effect of vibration damping should be better.In order to guarantee effectiveness in vibration suppression, usually require the T value less than 0.1, this just requires f/f
0＞5.5, thereby require attachment screw 8 smaller with Length Ratio damping pad main body 1 axial length and the stress elimination body length sum locked screw except screw head 81, also require the diameter of damping pad less, require simultaneously damping pad hardness lower, so that f
0Enough little.The design of the invention damping pad, except satisfying the above requirements, also the outer diameter by design flange 5 makes the integral diameter of damping pad less greater than the outer diameter of main body 1, effectiveness in vibration suppression is further guaranteed, thereby T is reduced, and the vibration damping erasure effect of whole range hood is better.
Through test, the smoke pumping function that the present embodiment provides effectively reduces motor oscillating, then can effectively eliminate the noise that motor oscillating produces.
The above embodiment; purpose is in order to make those skilled in the art better understand the spirit of the invention; yet the protection domain of the invention is not with the description limited range of these embodiments; any those skilled in the art is in the scope that does not break away from the invention spirit; can make an amendment the specific embodiment of the invention, and not break away from the protection domain of the invention.
Claims (4)
1. a damping pad that is used for range hood, is characterized in that, comprising:
Main body (1) is column, and inside has along its through hole that axially runs through (2), and the middle part, side has annular groove (3);
Stress is eliminated body, is arranged at least one end face of upper-end surface and the lower end surface of described main body (1); It is flange (5) that described stress is eliminated body.
2. damping pad as claimed in claim 1, is characterized in that, described flange (5) extends upward formation from the edge of described end face.
3. damping pad as claimed in claim 2, is characterized in that, the outward edge diameter of described flange (5) is greater than the outward edge diameter of described end face.
4. a range hood, is characterized in that, comprises motor (6), spiral case (7), screw (8) and damping pad as described in any one in claim 1-3;
The flange plate marginating compartment of described motor (6) is provided with at least two draw-in grooves;
Described damping pad passes through annular groove (3) holding at middle part, main body (1) side in each described draw-in groove;
Described screw (8) passes the through hole (2) of described damping pad and locks screw on described spiral case (7), makes described motor (6) be arranged on described spiral case (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220403401 CN202937708U (en) | 2012-08-07 | 2012-08-07 | Smoke exhaust ventilator and vibration reducing pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220403401 CN202937708U (en) | 2012-08-07 | 2012-08-07 | Smoke exhaust ventilator and vibration reducing pad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202937708U true CN202937708U (en) | 2013-05-15 |
Family
ID=48321947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220403401 Expired - Fee Related CN202937708U (en) | 2012-08-07 | 2012-08-07 | Smoke exhaust ventilator and vibration reducing pad |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202937708U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104894808A (en) * | 2015-04-29 | 2015-09-09 | 无锡小天鹅股份有限公司 | Washing machine |
| CN105135106A (en) * | 2015-09-24 | 2015-12-09 | 江苏广通管业制造有限公司 | Shockproof flange |
| CN105305690A (en) * | 2015-11-23 | 2016-02-03 | 珠海格力电器股份有限公司 | Motor damping mounting structure and have its lampblack absorber |
| CN107360801A (en) * | 2016-05-13 | 2017-11-21 | 勇猛机械股份有限公司 | One kind is used for cropper driver's cabin flexible-connection shock-absorbing device |
| CN111981067A (en) * | 2020-07-02 | 2020-11-24 | 加西贝拉压缩机有限公司 | Two-stage vibration-damping rubber pad for refrigeration compressor |
| CN112944422A (en) * | 2021-03-18 | 2021-06-11 | 宁波方太厨具有限公司 | Range hood with vibration reduction function and vibration reduction control method of range hood |
-
2012
- 2012-08-07 CN CN 201220403401 patent/CN202937708U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104894808A (en) * | 2015-04-29 | 2015-09-09 | 无锡小天鹅股份有限公司 | Washing machine |
| CN105135106A (en) * | 2015-09-24 | 2015-12-09 | 江苏广通管业制造有限公司 | Shockproof flange |
| CN105305690A (en) * | 2015-11-23 | 2016-02-03 | 珠海格力电器股份有限公司 | Motor damping mounting structure and have its lampblack absorber |
| CN105305690B (en) * | 2015-11-23 | 2018-08-07 | 珠海格力电器股份有限公司 | Motor damping mounting structure and have its lampblack absorber |
| CN107360801A (en) * | 2016-05-13 | 2017-11-21 | 勇猛机械股份有限公司 | One kind is used for cropper driver's cabin flexible-connection shock-absorbing device |
| CN111981067A (en) * | 2020-07-02 | 2020-11-24 | 加西贝拉压缩机有限公司 | Two-stage vibration-damping rubber pad for refrigeration compressor |
| CN112944422A (en) * | 2021-03-18 | 2021-06-11 | 宁波方太厨具有限公司 | Range hood with vibration reduction function and vibration reduction control method of range hood |
| CN112944422B (en) * | 2021-03-18 | 2022-05-17 | 宁波方太厨具有限公司 | Range hood with vibration reduction function and vibration reduction control method of range hood |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130515 Termination date: 20180807 |