CN111951817B - Noise reduction structure and kitchen appliance using same - Google Patents
Noise reduction structure and kitchen appliance using same Download PDFInfo
- Publication number
- CN111951817B CN111951817B CN202010857802.XA CN202010857802A CN111951817B CN 111951817 B CN111951817 B CN 111951817B CN 202010857802 A CN202010857802 A CN 202010857802A CN 111951817 B CN111951817 B CN 111951817B
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- sound
- noise reduction
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- cavity
- rectifying
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- 230000009467 reduction Effects 0.000 title claims abstract description 91
- 230000005540 biological transmission Effects 0.000 claims abstract description 31
- 239000012530 fluid Substances 0.000 claims abstract description 25
- 230000009471 action Effects 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 239000010687 lubricating oil Substances 0.000 claims description 3
- 239000010705 motor oil Substances 0.000 claims description 3
- 239000002562 thickening agent Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 11
- 238000010586 diagram Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 206010067484 Adverse reaction Diseases 0.000 description 2
- 206010013954 Dysphoria Diseases 0.000 description 2
- 206010033557 Palpitations Diseases 0.000 description 2
- 230000006838 adverse reaction Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004630 mental health Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 206010019233 Headaches Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0208—Noise filtering
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/162—Selection of materials
Abstract
The invention discloses a noise reduction structure and a kitchen appliance using the same, wherein the noise reduction structure comprises a sound cavity, a sound transmission assembly, viscous fluid, a rectifying assembly and a noise reduction assembly; the sound cavity one end is open, and the sound transmission subassembly covers in the uncovered department of sound cavity, and both constitute the cavity jointly, and viscous fluid fills in the cavity, and the rectifier module is located in the cavity for gather and reflect the sound that gets into through the sound transmission subassembly, fall the subassembly of making an uproar and insert and locate in the rectifier module, be used for moving under the acoustic wave effect and produce friction and fall the noise. According to the invention, a cavity structure is formed by the sound chamber and the sound transmission assembly, viscous fluid is filled in the cavity, the rectifying assembly and the noise reduction assembly are arranged, sound entering the cavity is reflected twice by the inner wall of the rectifying assembly and the sound chamber, meanwhile, the noise reduction assembly moves back and forth in the rectifying assembly under the action of sound wave pressure intensity, friction with the viscous fluid is generated, noise reduction is carried out, the noise reduction effect is good, and the use experience of a user is effectively improved.
Description
Technical Field
The invention belongs to the technical field of noise reduction structures, and particularly relates to a noise reduction structure and a kitchen appliance using the same.
Background
Kitchen appliances are household appliances specially used for the kitchen, and can be divided into five types of food preparation, cooking, storage and kitchen sanitation according to purposes, such as appliances including refrigerators, sterilizing cabinets, range hoods, gas water heaters and the like. The gas water heater is approved by consumers by virtue of the energy conservation and environmental protection, but the gas water heater at least can emit more than 55 dB of noise when in work; under the market prospect of large air quantity and large suction force, the noise generated by the range hood is larger and larger along with the gradual increase of the air quantity; when the kitchen appliance is used by a user, the user is in a noise environment for a long time, and adverse reactions such as dysphoria, cardiodynia, palpitation and the like can be generated, and even physical and mental health can be seriously influenced.
And with the improvement of life quality of people, the use requirements of people on kitchen appliances are gradually improved, and when users purchase kitchen appliances, the noise parameters are more and more concerned. Therefore, the noise becomes a technical problem to be solved in the existing kitchen appliances, and it is necessary to design a noise reduction structure which is suitable for the kitchen appliances and can effectively reduce the noise generated by the kitchen appliances when the kitchen appliances work.
Disclosure of Invention
Therefore, the invention aims to provide a noise reduction structure, which can reduce noise of sound entering a cavity by filling viscous fluid in the cavity of a sound cavity and a sound transmission component and arranging a rectifying component and a noise reduction component, and has good noise reduction effect.
The kitchen appliance with the noise reduction structure can remarkably reduce noise generated when the kitchen appliance works, and effectively improves the use experience of a user.
The technical scheme adopted by the invention is that the noise reduction structure comprises a sound cavity, a sound transmission assembly, viscous fluid, a rectifying assembly and a noise reduction assembly; the sound cavity is characterized in that one end of the sound cavity is open, the sound transmission assembly covers the opening of the sound cavity, the sound transmission assembly and the sound transmission assembly form a cavity together, viscous fluid is filled in the cavity, the rectifying assembly is arranged in the cavity and used for gathering and reflecting sound entering through the sound transmission assembly, and the noise reduction assembly is inserted into the rectifying assembly and used for reducing noise by friction generated by movement under the action of sound waves.
Preferably, the rectifying component comprises a sound inlet, a sound channel and a sound outlet which are sequentially connected, the sound inlet and the sound outlet are of a horn-shaped structure, the sound channel is of a tubular structure, and the diameter of the sound channel is the same as the minimum diameter of the sound inlet and the sound outlet.
Preferably, the noise reduction assembly is a hollow cylinder structure, and the diameter of the noise reduction assembly is smaller than that of the sound channel.
Preferably, the noise reduction assembly is a lightweight plastic noise reduction assembly.
Preferably, the surface of the noise reduction assembly is provided with a first protrusion for increasing friction.
Preferably, a second protrusion for increasing friction is provided inside the fairing assembly.
Preferably, the first protrusions and the second protrusions are dots or spikes.
Preferably, the device further comprises a framework arranged in the sound cavity and connected with the sound transmission component, the framework is used for dividing the sound cavity into a plurality of small cavities, and the rectifying component and the noise reduction component are multiple and correspond to the small cavities one by one.
Preferably, a fixing bracket for fixing the rectifying component is further arranged on the framework.
Preferably, the viscous fluid includes a mixture of lubricating oil, engine oil, thickener and water.
The invention also provides a kitchen appliance applying the noise reduction structure, and the kitchen appliance at least comprises a range hood and a gas water heater.
The beneficial effects of the invention are as follows: according to the invention, a cavity structure is formed through the sound cavity and the sound transmission component, viscous fluid is filled in the cavity, meanwhile, the rectifying component and the noise reduction component are arranged in the cavity, sound can enter the cavity from the sound transmission component, the rectifying component gathers and reflects the sound and emits the sound into the rectifying component again when reaching the inner wall of the sound cavity, meanwhile, the noise reduction component moves back and forth in the rectifying component under the action of sound wave pressure and rubs with the viscous fluid to reduce the noise, so that the noise entering the cavity is reduced, and the noise reduction effect is good; in addition, the noise reduction structure is arranged on kitchen appliances such as a gas water heater, a range hood and the like, so that noise generated during the operation of the kitchen appliances can be remarkably reduced, and the use experience of users is effectively improved.
Drawings
Fig. 1 is a structural diagram of a noise reduction structure provided in embodiment 1 of the present invention;
FIG. 2 is a diagram illustrating another visual angle of the noise reduction structure according to embodiment 1 of the present invention;
FIG. 3 is a block diagram of a noise reduction structure provided in embodiment 1 of the present invention without an assembly of a sound-transmitting member;
fig. 4 is an assembly diagram of a rectifying component, a noise reduction component and a fixing bracket in the noise reduction structure provided in embodiment 1 of the present invention;
FIG. 5 is an assembly diagram of the noise reduction structure according to embodiment 1 of the present invention, in which the rectifying component and the noise reduction component are not provided with the first protrusion and the second protrusion;
fig. 6 is a structural diagram of a rectifying component in the noise reduction structure provided in embodiment 1 of the present invention;
fig. 7 is a block diagram of a noise reduction component in the noise reduction structure provided in embodiment 1 of the present invention;
fig. 8 is a structural diagram of a range hood with a noise reduction structure applied to a kitchen appliance according to embodiment 2 of the present invention.
In the figure: 1. a sound chamber; 11. a skeleton; 111. a fixed bracket; 2. an acoustically transparent member; 3. a viscous fluid; 4. a rectifying assembly; 41. a sound inlet; 42. a sound channel; 43. a sound outlet; 44. a second protrusion; 5. a noise reduction assembly; 51. a first protrusion.
Detailed Description
The present invention will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1
The embodiment provides a noise reduction structure, as shown in fig. 1, which comprises a sound chamber 1, a sound transmission component 2, viscous fluid 3, a rectifying component 4 and a noise reduction component 5; the sound cavity 1 one end is open, the sound transmission assembly 2 covers the uncovered department in the sound cavity 1, and both constitute the cavity jointly, viscous fluid 3 fills in the cavity, rectifier module 4 sets up in the cavity for gather and reflect the sound that gets into through sound transmission assembly 2, fall the subassembly 5 of making an uproar and insert in rectifier module 4, be used for moving under the acoustic wave effect and produce friction and fall the noise.
Specifically, the sound chamber 1 is a cavity structure with one end open, the sound transmission component 2 is covered at the opening of the sound chamber 1, the sound chamber 1 and the sound transmission component 2 are combined to form a cavity structure together, and thus sound can enter the sound chamber 1 from the sound transmission component 2; the rectifying components 4 are arranged in the cavities, the noise reduction components 5 are inserted in the rectifying components 4, and the viscous fluid 3 is filled in the cavities, namely between the rectifying components 4, and between the rectifying components 4 and the noise reduction components 5.
Thus, sound enters from the sound transmission assembly 2, the rectifying assembly 4 gathers the sound, enhances the sound intensity and reflects, then the sound reaches the inner wall of the sound chamber 1, reaches the rectifying assembly 4 again through the reflection of the inner wall of the sound chamber 1, and in the sound transmission process, the noise reduction assembly 5 moves in the rectifying assembly 4 under the action of sound wave pressure, friction is generated between the noise reduction assembly 5 and the viscous fluid 3 and the front of the inner wall of the rectifying assembly 4 in the movement process, and noise reduction is performed through the viscous friction.
In a specific implementation, the sound-transmitting component 2 may be a sound-transmitting film, or a sound-transmitting sheet, which is mainly used to transmit sound into the sound chamber 1.
In specific implementation, the viscous fluid 3 comprises a mixed solution of lubricating oil, engine oil, a thickening agent and water, and the viscous fluid is adopted, so that friction between the viscous fluid 3 and the rectifying component 4 and the noise reduction component 5 is large, loss of sound is large, and the noise reduction effect is good.
As shown in fig. 4 to 6, the rectifying component 4 includes a sound inlet 41, a sound channel 42 and a sound outlet 43 which are sequentially connected, the sound inlet 41 and the sound outlet 43 are both in a horn-shaped structure, and the sound channel 42 is in a tubular structure, and the diameter of the sound channel is the same as the minimum diameter of the sound inlet 41 and the sound outlet 43.
Specifically, the rectifying assembly 4 includes a sound inlet 41 and a sound outlet 43 of a horn-like structure, and a tubular structure, i.e., a sound passage 42 of a cylindrical structure, disposed between the sound inlet 41 and the sound outlet 43, that is, a sound passage 42 is connected to a horn-like mouth of the sound inlet 41 and the sound outlet 43;
thus, sound enters the cavity from the sound transmission assembly 2, then the sound inlet 41 gathers the sound, enhances the sound intensity, reflects, enables the sound to enter the sound channel 42 and pushes the noise reduction assembly 5 to move, then the sound propagates to the sound outlet 43, reaches the inner wall of the sound chamber 1, reflects back to the sound outlet 43 again, gathers, then reflects into the sound channel 42 and pushes the noise reduction assembly 5 to move again, and the noise reduction assembly 5 rubs with the color-producing viscosity of the viscous fluid 3 in the moving process, so that noise reduction is performed.
In order to match the noise reduction assembly 5 with the sound channel 4 so as to increase friction resistance as much as possible, the noise reduction assembly 5 has a hollow cylindrical structure, and the diameter of the noise reduction assembly 5 is smaller than that of the sound channel 42; meanwhile, the noise reduction assembly 5 is a light plastic noise reduction assembly.
In this way, the noise reduction assembly 5 is of a relatively light mass and can be pushed under acoustic pressure. However, the noise reduction assembly 5 is not limited to use with lightweight plastic materials, and other materials having a low density suitable for use in the present invention can be used in the present embodiment.
In order to enhance the friction effect and strengthen the noise reduction effect, as shown in fig. 7, the surface of the noise reduction assembly 5 is provided with a first protrusion 51 for increasing friction; as shown in fig. 6, the rectifying component 4 is internally provided with a second protrusion 44.
In a specific implementation, the first protrusions 51 and the second protrusions 44 are dots or spikes, and the first protrusions 51 and the second protrusions 44 may also be protrusions with other irregular shapes.
As shown in fig. 2 and 3, the noise reduction structure further includes a skeleton 11 disposed in the sound chamber 1 and connected to the sound-transmitting component 2, where the skeleton 11 is used to uniformly divide the sound chamber 1 into a plurality of small chambers; the rectifying component 4 and the noise reduction component 5 are multiple and are in one-to-one correspondence with the small cavities.
Specifically, skeleton 11 sets up in sound cavity 1, separates sound cavity 1 into a plurality of little cavities that do not communicate each other, all fills in every little cavity and has viscidity solution 3, and all is provided with rectification subassembly 4 and noise reduction subassembly 5 in every little cavity.
Like this, sound cavity 1 is divided into a plurality of little cavities that advance sound, and corresponds in every little cavity and set up rectifier module 4 and fall the subassembly 5 of making an uproar, can shunt the sound, falls the noise through a plurality of rectifier modules 4 and fall the subassembly 5 of making an uproar to the sound and handle, can show the noise that reduces the production, improves the noise reduction effect.
In order to fix the fairing assembly 4 in the small chamber, a fixing bracket 111 for fixing the fairing assembly 4 is further provided on the frame 11, and the fixing bracket 111 is connected with the sound channel 42.
The working process comprises the following steps: in use, the noise reduction structure of this embodiment allows sound to enter the sound chamber 1 from the sound transmission component 2, that is, enter the cavity, then the sound inlet 41 in the rectifying component 4 gathers and reflects the sound entering the cavity, the sound enters the business channel 42 and pushes the noise reduction component 5 to move, then the sound propagates to the sound outlet 43, reaches the inner wall of the sound chamber 1, reflects back to the sound outlet 43 again, then reflects into the sound channel 42 and pushes the noise reduction component 5 to move again, and the noise reduction component 5 generates color viscous friction with the viscous fluid 3 during the movement, so as to reduce noise.
According to the embodiment, a cavity structure is formed through the sound cavity and the sound transmission assembly, viscous fluid is filled in the cavity, meanwhile, the rectifying assembly and the noise reduction assembly are arranged in the cavity, sound can enter the cavity from the sound transmission assembly, the rectifying assembly gathers and reflects the sound and emits the sound into the rectifying assembly again when reaching the inner wall of the sound cavity, meanwhile, the noise reduction assembly moves back and forth in the rectifying assembly under the action of sound wave pressure and rubs with the viscous fluid to reduce the noise, and therefore the noise of the sound entering the cavity is reduced, and the noise reduction effect is good; meanwhile, the sound cavity is divided into a plurality of small cavities through the framework and the fixed support, and the rectifying component and the noise reduction component are correspondingly arranged in each small cavity, so that the sound entering the sound cavity can be split, and the noise reduction effect is enhanced.
Example 2
The embodiment provides a kitchen appliance with a noise reduction structure of the embodiment 1, and the kitchen appliance at least comprises a range hood and a gas water heater.
In specific implementation, the noise reduction structure of embodiment 1 may be applied to kitchen appliances, such as a range hood, a gas water heater, etc., but the kitchen appliances to which the noise reduction structure of embodiment 1 can be applied are not limited to a range hood and a gas water heater, and other specific kitchen appliances may also apply the noise reduction structure of embodiment 1.
As shown in fig. 8, the noise reduction structure of embodiment 1 is applied to a range hood, so that noise generated when the range hood works can be significantly reduced.
In addition, the domestic smoke ventilator market in recent years mainly pushes the concepts of large air quantity and large suction force, and along with the gradual increase of the air quantity, the noise generated by the smoke ventilator is also larger and larger. The large noise causes that when a user cooks, the range hood is started to hear no speaking sound, telephone sound, door bell sound and child sound, and even the strong noise can cause the housewife and kitchen operators to generate dysphoria, headache, palpitation and other adverse reactions, and the long-term use can cause serious influence on physical and mental health. After the noise reduction structure of the embodiment 1 is applied to the range hood, noise generated in the working process of the range hood is obviously reduced, and the product competitiveness of the range hood is effectively improved.
According to the embodiment, the noise reduction structure is applied to the kitchen appliance, so that the noise generated during the operation of the kitchen appliance can be remarkably reduced, the problem that the kitchen appliance generates larger noise during the operation is solved, and the product competitiveness of kitchen appliances such as a range hood and a gas water heater is effectively improved.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
Claims (8)
1. The noise reduction structure is characterized by comprising a sound chamber (1), a sound transmission assembly (2), viscous fluid (3), a rectifying assembly (4) and a noise reduction assembly (5); the sound chamber (1) is open at one end, the sound transmission component (2) is covered at the opening of the sound chamber (1), the sound transmission component and the sound transmission component form a cavity together, the viscous fluid (3) is filled in the cavity, the rectifying component (4) is arranged in the cavity, the rectifying component (4) comprises a sound inlet (41), a sound channel (42) and a sound outlet (43) which are sequentially connected, the sound inlet (41) and the sound outlet (43) are of a horn-shaped structure, the sound channel (42) is of a tubular structure, the diameter is the same as the minimum diameter of the sound inlet (41) and the sound outlet (43), the rectifying component (4) is used for gathering and reflecting sound entering through the sound transmission component (2), and the noise reduction component (5) is inserted in the rectifying component (4) and used for generating friction for noise reduction under the action of sound waves;
the device also comprises a framework (11) which is arranged in the sound chamber (1) and connected with the sound transmission assembly (2), wherein the framework (11) is used for uniformly dividing the sound chamber (1) into a plurality of small chambers; the number of the rectifying components (4) and the number of the noise reduction components (5) are multiple, and the rectifying components and the noise reduction components are in one-to-one correspondence with the multiple small cavities.
2. The noise reducing structure according to claim 1, characterized in that the noise reducing component (5) is a hollow cylinder structure, the noise reducing component (5) is a lightweight plastic noise reducing component, and the diameter is smaller than the diameter of the sound channel (42).
3. A noise reducing structure according to claim 2, characterized in that the surface of the noise reducing assembly (5) is provided with first protrusions (51) for increasing friction.
4. A noise reducing structure according to claim 3, characterized in that the fairing assembly (4) is internally provided with a second protrusion (44).
5. The noise reducing structure according to claim 4, wherein the first protrusions (51) and the second protrusions (44) are dots or spikes.
6. Noise reducing structure according to claim 1, characterized in that the skeleton (11) is further provided with a fixing bracket (111) for fixing the rectifying assembly (4).
7. A noise reducing structure according to claim 1, characterized in that the viscous fluid (3) comprises a mixture of lubricating oil, engine oil, thickener and water.
8. A kitchen appliance applying the noise reduction structure as defined in any one of claims 1 to 7, wherein the kitchen appliance at least comprises a range hood and a gas water heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010857802.XA CN111951817B (en) | 2020-08-24 | 2020-08-24 | Noise reduction structure and kitchen appliance using same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010857802.XA CN111951817B (en) | 2020-08-24 | 2020-08-24 | Noise reduction structure and kitchen appliance using same |
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| CN111951817A CN111951817A (en) | 2020-11-17 |
| CN111951817B true CN111951817B (en) | 2023-12-19 |
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| CN202010857802.XA Active CN111951817B (en) | 2020-08-24 | 2020-08-24 | Noise reduction structure and kitchen appliance using same |
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| CN112728757B (en) * | 2020-12-28 | 2022-04-22 | 无锡恒业电热电器有限公司 | High-efficient multichannel electric heater |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB201410856D0 (en) * | 2014-06-18 | 2014-07-30 | Carbon Air Ltd | Vibration propagation |
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| WO2012025594A1 (en) * | 2010-08-27 | 2012-03-01 | Brandenburgische Technische Universität Cottbus | Multi-layer lightweight component having structured layers |
| CN103912754A (en) * | 2012-12-31 | 2014-07-09 | 海尔集团公司 | Silencer and manufacturing method therefore as well as refrigerator |
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