CN111938534A - Noise reduction structure, dish washing machine applying noise reduction structure and noise reduction control method - Google Patents
Noise reduction structure, dish washing machine applying noise reduction structure and noise reduction control method Download PDFInfo
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- CN111938534A CN111938534A CN202010856932.1A CN202010856932A CN111938534A CN 111938534 A CN111938534 A CN 111938534A CN 202010856932 A CN202010856932 A CN 202010856932A CN 111938534 A CN111938534 A CN 111938534A
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- 238000004851 dishwashing Methods 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000005674 electromagnetic induction Effects 0.000 claims abstract description 36
- 230000000875 corresponding effect Effects 0.000 claims description 15
- 230000002596 correlated effect Effects 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 239000010408 film Substances 0.000 description 27
- 239000010409 thin film Substances 0.000 description 16
- UVXCXZBZPFCAAJ-UHFFFAOYSA-N arc-111 Chemical compound C1=C2OCOC2=CC2=C(N(CCN(C)C)C(=O)C3=C4C=C(C(=C3)OC)OC)C4=CN=C21 UVXCXZBZPFCAAJ-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 206010067484 Adverse reaction Diseases 0.000 description 1
- 206010013954 Dysphoria Diseases 0.000 description 1
- 206010033557 Palpitations Diseases 0.000 description 1
- 230000006838 adverse reaction 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
- 238000002360 preparation method Methods 0.000 description 1
- 230000009323 psychological health Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
- A47L15/0052—Noise reduction
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—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
- G10K11/172—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using resonance effects
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Induction Heating Cooking Devices (AREA)
Abstract
The invention discloses a noise reduction structure, a dish washing machine applying the noise reduction structure and a noise reduction control method, wherein the noise reduction structure is applied to kitchen appliances and comprises a magnetic film and an electromagnetic induction coil, and the magnetic film covers the electromagnetic induction coil; the electromagnetic induction coil drives the magnetic film to vibrate after being electrified so as to absorb noise. According to the invention, the magnetic film covers the electromagnetic induction coil, and the electromagnetic induction coil drives the magnetic film to vibrate after being electrified so as to realize noise reduction; moreover, the noise reduction structure can be applied to kitchen appliances such as dish washers, gas water heaters, range hoods and the like, can obviously reduce the noise generated when the kitchen appliances work, and effectively improves the use experience of users.
Description
Technical Field
The invention belongs to the technical field of noise reduction devices, and particularly relates to a noise reduction structure, a dish washing machine using the same and a noise reduction control method.
Background
Kitchen appliances are household appliances specially used for kitchens, and can be divided into five types, namely food preparation, cooking, storage and kitchen sanitation according to the application, and the kitchen appliances comprise electric appliances such as a refrigerator, a disinfection cabinet, a range hood, a gas water heater and the like. The gas water heater is approved by consumers by virtue of the advantages of energy conservation and environmental protection, but the gas water heater can emit noise of more than 55 decibels at least when in work; the range hood generates increasingly larger noise along with the gradual increase of the air quantity under the market prospect of large air quantity and large suction force; when the user uses the kitchen appliance, the user is in a noise environment for a long time, adverse reactions such as dysphoria, heartache, palpitation and the like can be generated, and even the physical and psychological health can be seriously affected.
And along with the improvement of the life quality of people, the use requirements of people on kitchen appliances are gradually improved, and users pay more and more attention to the size of the noise parameter when purchasing the kitchen appliances. Therefore, noise becomes a technical problem to be solved urgently in the existing kitchen appliance, and it is necessary to design a noise reduction structure which is suitable for the kitchen appliance and can effectively reduce noise generated by the kitchen appliance when the kitchen appliance works.
Disclosure of Invention
In order to solve the above problems, the present invention provides a noise reduction structure, which achieves noise reduction through the mutual cooperation between a magnetic thin film and an electromagnetic induction coil.
The invention also discloses a dish-washing machine.
The invention also discloses a noise reduction control method.
The technical scheme adopted by the invention is as follows:
a noise reduction structure is applied to kitchen appliances and comprises a magnetic film and an electromagnetic induction coil, wherein the magnetic film is covered on the electromagnetic induction coil; the electromagnetic induction coil drives the magnetic film to vibrate after being electrified so as to absorb noise.
Preferably, the cross section of the magnetic film is wavy formed by connecting at least two arcs, and the shape of the electromagnetic induction coil is matched with that of the magnetic film.
Preferably, at least two of said arcs have different diameters for absorbing noise of different frequencies.
Preferably, the diameter of the arc is positively correlated with the noise level at the position of the arc.
A dish washing machine is characterized by comprising the noise reduction structure, wherein the noise reduction structure comprises a first noise reduction structure and a second noise reduction structure, the first noise reduction structure is positioned on the side wall of an inner cavity of the dish washing machine, and the second noise reduction structure is positioned on the top surface and the bottom surface of the inner cavity of the dish washing machine.
Preferably, the wave-shaped wave troughs and wave crests forming the cross section of the magnetic thin film in the first noise reduction structure are respectively in the same horizontal plane.
Preferably, when the wave-shaped wave troughs forming the cross section of the magnetic thin film in the second noise reduction structure are on the same horizontal plane, the wave crests are not on the same horizontal plane; when the wave-shaped wave crests forming the cross section of the second noise reduction structure are on the same horizontal plane, the wave troughs are not on the same horizontal plane.
Preferably, when the wave-shaped wave troughs forming the cross section of the magnetic film in the second noise reduction structure are on the same horizontal plane and the wave crests are not on the same horizontal plane, the second noise reduction structure is positioned on the bottom surface of the inner cavity of the dishwasher, and the heights of the wave-shaped wave crests are reduced from the middle to two sides in sequence.
Preferably, when the wave-shaped wave crests of the cross section of the magnetic film in the second noise reduction structure are on the same horizontal plane and the wave troughs are not on the same horizontal plane, the second noise reduction structure is positioned on the top surface of the inner cavity of the dishwasher, and the heights of the wave-shaped wave troughs are reduced from the middle to two sides in sequence.
A noise reduction control method is used for reducing noise of the dishwasher and specifically comprises the following steps:
s1, acquiring the working power of the dish washer;
and S2, when the working power is larger than or equal to the power threshold value, electrifying the electromagnetic induction coils of the first noise reduction structure and the second noise reduction structure.
Preferably, the electromagnetic induction coils of the first noise reduction structure and the second noise reduction structure are energized, specifically:
s21, corresponding to the frequency range of the current noise according to the working power of the dishwasher; wherein, the dishwasher is preset with the corresponding relation between the working power and the frequency range;
s22, applying current to the electromagnetic induction coil to drive the magnetic film to vibrate, and enabling the vibration frequency of the magnetic film to be within the frequency range of the current noise; wherein, the corresponding relation between the current value of the current and the vibration frequency of the magnetic film (11) is preset in the dish-washing machine.
Compared with the prior art, the magnetic film covers the electromagnetic induction coil, and the electromagnetic induction coil drives the magnetic film to vibrate after being electrified so as to absorb noise; moreover, the noise reduction structure can be applied to kitchen appliances such as dish washers, gas water heaters, range hoods and the like, can obviously reduce the noise generated when the kitchen appliances work, and effectively improves the use experience of users.
Drawings
Fig. 1 is a schematic structural diagram of a noise reduction structure provided in embodiment 1 of the present invention;
FIG. 2 is a cross-sectional view of a magnetic thin film in a noise reducing structure according to embodiment 1 of the present invention;
FIG. 3 is a schematic structural view of a dishwasher according to embodiment 2 of the present invention;
FIG. 4 is a schematic view of the internal structure of a dishwasher according to embodiment 2 of the present invention;
FIG. 5 is a schematic view of the bottom structure of a dishwasher according to embodiment 2 of the present invention;
FIG. 6 is a schematic structural diagram of a magnetic film in a first noise reduction structure in a dishwasher according to embodiment 2 of the present invention;
FIG. 7 is a schematic structural diagram of a magnetic film in a second noise reduction structure in a dishwasher according to embodiment 2 of the present invention;
FIG. 8 is a schematic structural view of another orientation of a magnetic film in a second noise reduction structure in a dishwasher according to embodiment 2 of the present invention;
fig. 9 is a flowchart of a noise reduction control method according to embodiment 3 of the present invention.
The noise reduction structure comprises a first noise reduction structure 1, a second noise reduction structure 2, a magnetic film 11, an electromagnetic induction coil 12 and an arc 111.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "vertical", "lateral", "longitudinal", "front", "rear", "left", "right", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and do not mean that the device or member to which the present invention is directed must have a specific orientation or position, and thus, cannot be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
thus, with the structure, the electromagnetic induction coil 12 drives the magnetic film 11 to vibrate after being electrified so as to realize noise reduction; moreover, the noise reduction structure can be applied to kitchen appliances such as dish washers, gas water heaters, range hoods and the like, can obviously reduce the noise generated when the kitchen appliances work, and effectively improves the use experience of users.
As shown in fig. 2, the cross section of the magnetic thin film 11 is wavy formed by connecting at least two arcs 111, and the shape of the electromagnetic induction coil 12 matches the shape of the magnetic thin film 11;
thus, the wave-shaped electromagnetic induction coil 12 generates a gradient magnetic field, which changes the pretension of the magnetic thin film 11, so that the magnetic thin film 11 can absorb noises with different frequencies.
At least two of the arcs 111 have different diameters for absorbing noise of different frequencies;
specifically, the diameters of the two arcs 111 are r1 and r2, respectively, and it can be seen from fig. 2 that r1 and r2 are not equal, so that the lengths of the two arcs 111 are not equal, and the areas of the corresponding magnetic thin films 11 are different, thereby absorbing noise with different sizes.
The diameter of the arc 111 is positively correlated with the noise at the position of the arc 111;
specifically, where the noise is larger, the diameter of the corresponding arc 111 should be larger, because the different diameters of the arcs 111 cause the magnetic thin films 11 to have different areas, and the larger the area, the easier the noise is to be absorbed.
In the embodiment, the noise reduction function is realized by the cooperation of the magnetic film and the electromagnetic induction coil, and the noise reduction structure can absorb noises with different frequencies and different sizes by limiting the shapes and the areas of the magnetic film and the electromagnetic induction coil;
in addition, the noise reduction structure in the embodiment can be applied to kitchen appliances such as dish-washing machines, range hoods, gas water heaters and the like, can obviously reduce the noise generated when the kitchen appliances work, solves the problem of generating larger noise when the kitchen appliances work, and effectively improves the product competitiveness of the kitchen appliances such as dish-washing machines, range hoods, gas water heaters and the like.
Example 2
the significance of this is: the noise distribution on the side wall of the dishwasher is uniform, so that the noise reduction structure in the same form can be adopted;
the top surface and the bottom surface of the dishwasher are generally provided with motors or rotary spray arms, and the noise is larger than that of the side walls, so that the top surface and the bottom surface adopt another type of noise reduction structure.
In particular, the specific number of first noise reducing structures 1 provided is related to the shape of the dishwasher, in case the dishwasher is a rectangular parallelepiped structure, four first noise reducing structures 1 are provided.
As shown in fig. 6, the wave-shaped troughs and crests constituting the cross section of the magnetic thin film 11 in the first noise reduction structure 1 are respectively in the same horizontal plane.
As shown in fig. 7-8, when the wave-like wave troughs constituting the cross section of the magnetic thin film 11 in the second noise reduction structure 2 are on the same horizontal plane, the wave crests are not on the same horizontal plane; when the wave-like peaks constituting the cross-section of the second noise reducing structure 2 are in the same horizontal plane, the troughs are not in the same horizontal plane.
As shown in fig. 7, when the wave-shaped wave troughs forming the cross section of the magnetic film 11 in the second noise reduction structure 2 are on the same horizontal plane and the wave crests are not on the same horizontal plane, the second noise reduction structure 2 is positioned on the bottom surface of the inner cavity of the dishwasher, and the heights of the wave-shaped wave crests are reduced from the middle to two sides;
thus, the peak height at the center is the highest, the area of the corresponding magnetic film 11 is also the largest, and the center happens to be the position with the largest noise, so that the noise reduction effect can be improved by increasing the area of the magnetic film 11;
also, it should be noted that: the height of the wave crest is reduced from the middle to two sides in sequence, and the height of the wave crest is consistent with the rule of noise distribution.
As shown in fig. 8, when the wave-shaped wave crests of the cross section of the magnetic film 11 in the second noise reduction structure 2 are on the same horizontal plane and the wave troughs are not on the same horizontal plane, the second noise reduction structure 2 is positioned on the top surface of the inner cavity of the dishwasher, and the heights of the wave-shaped wave troughs are reduced from the middle to two sides;
thus, the wave trough at the center has the highest height, the area of the corresponding magnetic film 11 is also the largest, and the center happens to be the position with the largest noise, so that the noise reduction effect can be improved by increasing the area of the magnetic film 11;
also, it should be noted that: the heights of the wave troughs are sequentially reduced from the middle to two sides, and are consistent with the rule of noise distribution.
Example 3
Embodiment 3 of the present invention provides a noise reduction control method, which is used for reducing noise of the dishwasher described in embodiment 2, and as shown in fig. 9, specifically includes the following steps:
s1, acquiring the working power of the dish washer;
in particular, for selecting the gear of the operation of the dishwasher as required;
generally, when a large number of dishes need to be washed, a high gear can be selected, which corresponds to high working power, and otherwise, a low gear can be selected;
s2, when the working power is larger than or equal to the power threshold, electrifying the electromagnetic induction coils 12 of the first noise reduction structure 1 and the second noise reduction structure 2;
generally, the operating power of the dishwasher is less than 600w for the low gear and greater than 600w for the medium and high gears, and therefore the power threshold is set to 600 w.
In a specific embodiment, the electromagnetic induction coils 12 of the first noise reduction structure 1 and the second noise reduction structure 2 are energized, specifically:
s21, corresponding to the frequency range of the current noise according to the working power of the dishwasher; the dishwasher is internally preset with a corresponding relation between working power and frequency range; wherein, the dishwasher is preset with the corresponding relation between the working power and the frequency range;
s22, applying a current to the electromagnetic induction coil 12 to drive the magnetic thin film 11 to vibrate, and reducing noise in the frequency range of the current noise of the vibration frequency of the magnetic thin film 11; wherein, the corresponding relation between the current value of the current and the vibration frequency of the magnetic film 11 is preset in the dishwasher.
In this embodiment, when the operating power is less than 600w, the electromagnetic coil 12 is not energized.
In addition, the method further comprises: and S3, after the dishwasher is finished, closing the electromagnetic induction coil and stopping applying current, and finishing noise reduction.
The embodiment realizes the effective noise reduction effect without wasting energy by corresponding the frequency range of the current working power and noise of the dish washer and the current applied to the electromagnetic induction coil one by one and adjusting the current in real time.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (11)
1. A noise reduction structure applied to a kitchen appliance is characterized by comprising a magnetic film (11) and an electromagnetic induction coil (12), wherein the magnetic film (11) is covered on the electromagnetic induction coil (12); the electromagnetic induction coil (12) drives the magnetic film (11) to vibrate after being electrified so as to absorb noise.
2. A noise reducing structure according to claim 1, characterized in that the cross-section of the magnetic film (11) is wave-shaped formed by at least two arcs (111) connected, and the shape of the electromagnetic coil (12) matches the shape of the magnetic film (11).
3. A noise reducing structure according to claim 2, characterized in that at least two of said arcs (111) have different diameters for absorbing noise of different frequencies.
4. A noise reducing structure according to claim 3, characterized in that the diameter of the arc (111) is positively correlated to the noise level at the location of the arc (111).
5. A dishwasher, characterized in that it comprises a noise reducing structure according to any of claims 1-4, the noise reducing structure comprising a first noise reducing structure (1) and a second noise reducing structure (2), the first noise reducing structure (1) being located on a side wall of the dishwasher's interior and the second noise reducing structure (2) being located on the top and bottom surfaces of the dishwasher's interior.
6. A dishwasher according to claim 5, characterized in that the wave-like troughs and crests, respectively, of the cross-section of the magnetic film (11) constituting the first noise reducing structure (1) are in the same horizontal plane.
7. A dishwasher according to claim 6, characterized in that when the wave-like troughs constituting the cross-section of the magnetic film (11) in the second noise reducing structure (2) are in the same horizontal plane, their peaks are not in the same horizontal plane; when the wave-shaped wave crests forming the cross section of the second noise reduction structure (2) are on the same horizontal plane, the wave troughs are not on the same horizontal plane.
8. A dishwasher according to claim 7, characterized in that the second noise reducing structure (2) is located at the bottom of the dishwasher cavity when the wave troughs of the wave shape forming the cross section of the magnetic film (11) in the second noise reducing structure (2) are on the same horizontal plane and the wave crests are not on the same horizontal plane, and the height of each wave crest of the wave shape decreases from the middle to both sides.
9. A dishwasher according to claim 8, characterized in that the second noise reducing structure (2) is located on the top surface of the dishwasher cavity when the wave-like peaks constituting the cross-section of the magnetic film (11) in the second noise reducing structure (2) are on the same horizontal plane and the troughs thereof are not on the same horizontal plane, and the height of the wave-like troughs decreases from the middle to both sides.
10. A noise reduction control method for reducing noise of a dishwasher according to any one of claims 5 to 9, comprising the steps of:
s1, acquiring the working power of the dish washer;
s2, when the working power is larger than or equal to the power threshold, electrifying the electromagnetic induction coils (12) of the first noise reduction structure (1) and the second noise reduction structure (2), specifically:
when the operating power is greater than or equal to the power threshold, the electromagnetic induction coil (12) is energized.
11. A noise reduction control method according to claim 10, characterized in that the electromagnetic induction coils (12) of the first noise reduction structure (1) and the second noise reduction structure (2) are energized, in particular:
s21, corresponding to the frequency range of the current noise according to the working power of the dishwasher; wherein, the dishwasher is preset with the corresponding relation between the working power and the frequency range;
s22, applying current to the electromagnetic induction coil (12) to drive the magnetic film (11) to vibrate, and enabling the frequency of vibration of the magnetic film (11) to be within the frequency range of the current noise; wherein, the corresponding relation between the current value of the current and the vibration frequency of the magnetic film (11) is preset in the dish-washing machine.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010856932.1A CN111938534A (en) | 2020-08-24 | 2020-08-24 | Noise reduction structure, dish washing machine applying noise reduction structure and noise reduction control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010856932.1A CN111938534A (en) | 2020-08-24 | 2020-08-24 | Noise reduction structure, dish washing machine applying noise reduction structure and noise reduction control method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112037807A (en) * | 2020-08-24 | 2020-12-04 | 华帝股份有限公司 | Noise reduction structure, kitchen appliance applying same and noise reduction control method |
| CN113112975A (en) * | 2021-04-20 | 2021-07-13 | 南京富罗新环保科技有限公司 | Sound absorption plate with electromagnetic sound absorption structure |
-
2020
- 2020-08-24 CN CN202010856932.1A patent/CN111938534A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112037807A (en) * | 2020-08-24 | 2020-12-04 | 华帝股份有限公司 | Noise reduction structure, kitchen appliance applying same and noise reduction control method |
| CN113112975A (en) * | 2021-04-20 | 2021-07-13 | 南京富罗新环保科技有限公司 | Sound absorption plate with electromagnetic sound absorption structure |
| CN113112975B (en) * | 2021-04-20 | 2024-06-11 | 南京富罗新环保科技有限公司 | Sound absorbing plate with electromagnetic sound absorbing structure |
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