CN213453921U - Centrifugal fan, new trend module and air conditioner - Google Patents
Centrifugal fan, new trend module and air conditioner Download PDFInfo
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- CN213453921U CN213453921U CN202022179535.3U CN202022179535U CN213453921U CN 213453921 U CN213453921 U CN 213453921U CN 202022179535 U CN202022179535 U CN 202022179535U CN 213453921 U CN213453921 U CN 213453921U
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- 238000000746 purification Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 abstract 1
- 238000009792 diffusion process Methods 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
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- 239000008187 granular material Substances 0.000 description 1
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Abstract
The utility model discloses a centrifugal fan, new trend module and air conditioner, centrifugal fan is including spiral case, air-out pipeline, sound sensor, speaker and controller, and air-out pipe connection is in the air outlet of spiral case, and sound sensor locates air-out pipeline for gather noise signal, the air-out pipeline is located to the speaker, and air-out pipeline is located to the controller, and the controller is connected with sound sensor and speaker electricity respectively, and the controller is used for receiving the noise signal that sound sensor gathered, and control speaker send with the sound wave of noise signal homofrequency anti-phase place, offsets with the noise through the sound wave that sends, can realize falling the initiative noise under centrifugal fan operating condition, realizes centrifugal fan's silence work.
Description
Technical Field
The utility model relates to a fan equipment technical field, in particular to centrifugal fan and applied this centrifugal fan's new trend module and air conditioner.
Background
Now, new trend module can be installed in the comfort level of many houses, apartment or other indoor places for can keeping indoor environment, introduces outdoor new trend to indoorly through the new trend module to let indoor air keep fresh, and the problem that the fan in the present new trend module has is: the noise is great during operation, greatly influences user's use and experiences.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a centrifugal fan aims at solving the big problem of centrifugal fan noise at work.
In order to achieve the above object, the present invention provides a centrifugal fan, comprising:
a volute provided with an air outlet; and
and the noise reduction module is arranged close to the air outlet.
Optionally, the centrifugal fan further comprises an air outlet pipeline connected to the air outlet; the noise reduction module comprises a sound sensor, a loudspeaker and a controller, wherein the sound sensor and the loudspeaker are both arranged in the air outlet pipeline and are both electrically connected with the controller; the sound sensor is used for collecting noise signals and transmitting the noise signals to the controller; the controller is used for receiving the noise signals collected by the sound sensor and controlling the loudspeaker to emit sound waves with the same frequency and the opposite phase of the noise signals.
Optionally, follow the air-out pipeline is close to the one end of air outlet extremely keeps away from the direction of the other end of air outlet, sound sensor with the speaker sets up at interval in proper order.
Optionally, the sound sensor is disposed near an inlet end of the air outlet duct.
Optionally, the number of the sound sensors is multiple, and the multiple sound sensors are distributed at intervals along the inner circumferential surface of the air outlet pipeline.
Optionally, the number of the speakers is multiple, and the multiple speakers are distributed at intervals along the inner circumferential surface of the air outlet pipeline.
Optionally, the cross-sectional area of the air outlet duct gradually increases from the end adjacent to the air outlet to the end far away from the air outlet.
The utility model also provides a new trend module, including new trend pipeline and foretell centrifugal fan, the output of new trend pipeline with the air intake of spiral case is linked together.
Optionally, the fresh air module is further provided with a purification module, and the purification module is arranged in the fresh air pipeline and used for purifying fresh air flowing through the fresh air pipeline.
The utility model also provides an air conditioner, including indoor set and foretell new trend module, the indoor set is including the air supply passageway, the air outlet of new trend module with the air supply passageway is linked together.
The utility model discloses technical scheme passes through sound sensor to the collection of noise signal and transmits to the controller, the controller carries out the sound wave of this speaker output of control and noise signal syntonic phase place after the frequency of the noise signal who gathers and phase place, produced noise offsets through this sound wave and centrifugal fan work, thereby can realize falling the initiative noise under the centrifugal fan operating condition and fall, realize centrifugal fan silence work promptly, the great noise at work of centrifugal fan has been solved and the condition that causes the interference influence to the user, greatly improve user and use experience.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural view of a centrifugal fan according to an embodiment of the present invention;
fig. 2 is a front view of a fresh air module according to an embodiment of the present invention;
fig. 3 is a side view of the fresh air module according to an embodiment of the present invention.
The reference numbers illustrate:
the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a centrifugal fan.
In an embodiment of the present invention, referring to fig. 1, the centrifugal fan includes a spiral case 1 and a noise reduction module, the spiral case 1 has an air outlet, and the noise reduction module is disposed adjacent to the air outlet and is used for emitting a sound wave with the same frequency and opposite phase to a noise signal; through like this, when centrifugal fan got into operating condition, because reasons such as the rotation of impeller, air current striking, can produce great noise in the spiral case 1, and the main air outlet that spreads the position for spiral case 1 of noise, this moment, the module of making an uproar of falling adjacent to the air outlet sends the sound wave with noise signal syntropy phase place to offset the noise, realize falling and make an uproar or even silence.
In one embodiment, the centrifugal fan further comprises an air outlet pipeline 2 connected to the air outlet; the noise reduction module comprises a sound sensor 3, a loudspeaker 4 and a controller, wherein the sound sensor 3 and the loudspeaker 4 are both arranged on the air outlet pipeline 2 and are both electrically connected with the controller; the sound sensor 3 is used for collecting noise signals and transmitting the noise signals to the controller; the controller is used for receiving the noise signal collected by the sound sensor 3 and controlling the loudspeaker 4 to emit sound waves with the same frequency and the opposite phase of the noise signal.
Through like this, when centrifugal fan got into operating condition, because the rotation of impeller, reasons such as air current striking, can produce great noise in the spiral case 1, through sound sensor 3 collection and transmission to controller of noise signal, the controller controls this speaker 4 output and the sound wave of noise signal with frequency antiphase after carrying out the analysis to the frequency and the phase place of the noise signal who gathers, the produced noise of work offsets through this sound wave and centrifugal fan, thereby realize falling the initiative of centrifugal fan and make an uproar, greatly improve user's use and experience.
In an embodiment, the sound sensor 3 and the speaker 4 are sequentially arranged at intervals along a direction from one end of the air outlet pipe 2 close to the air outlet to the other end far away from the air outlet.
In this embodiment, the main sound source that centrifugal fan during operation sent the noise is inside volute 1, and the noise mainly spreads and follows 2 propagations of air-out pipeline from the air outlet, through the extending direction at air-out pipeline 2, sound sensor 3 and speaker 4 set up at intervals in proper order, when the noise is propagated along air-out pipeline 2, gather the noise signal by sound sensor 3 earlier, then send to the controller, control speaker 4 by the controller again and send the sound wave and offset the noise, so, the sound wave of having avoided speaker 4 to send causes the circumstances that the degree of accuracy is not high that disturbs and influence and lead to sound sensor 3 to gather the noise signal to sound sensor 3.
In an embodiment, sound sensor 3 is close to the entrance point setting of air-out pipeline 2, and so, sound sensor 3 is nearer apart from the inside of spiral case 1, and is also nearer apart from the source of noise, and the degree of accuracy to noise signal collection is higher for final noise reduction is better.
In this embodiment, speaker 4 is close to the exit end setting of air-out pipeline 2, so, speaker 4 can be spaced apart from sound sensor 3 to the at utmost for when selecting or designing speaker 4, under the prerequisite that does not disturb sound sensor 3, can adopt the great speaker 4 of vocal coverage, thereby offset the noise more fully, make final noise reduction better.
In an embodiment, the quantity of sound sensor 3 is a plurality of, and a plurality of sound sensors 3 are along the inner peripheral surface interval distribution of air-out pipeline 2, through like this, can gather the noise diversely, can cover great scope to the collection of noise for noise signal gathers and has higher degree of accuracy, makes final noise reduction better.
In this embodiment, a plurality of interval distribution's first recess has been seted up to air-out pipeline 2's inner peripheral surface department, and every first recess holds a sound sensor 3, and sound sensor 3 is through bonding or for example the fixed mode fixed mounting of fasteners such as screw in first recess, can avoid flowing through air-out pipeline 2's air current to impact sound sensor 3 for a long time and cause the condition that sound sensor 3 drops or damages in locating first recess with sound sensor 3.
In an embodiment, the quantity of speaker 4 is a plurality of, and a plurality of speakers 4 are along the inner peripheral surface interval distribution of air-out pipeline 2, through like this, can diversely export the sound wave in to air-out pipeline 2, can offset with the noise that spreads from air-out pipeline 2 fully for final noise reduction is better.
In this embodiment, a plurality of interval distribution's second recess has been seted up to air-out pipeline 2's inner peripheral surface department, and every second recess holds a speaker 4, and speaker 4 is through bonding or for example the fixed mode fixed mounting of fasteners such as screws in the second recess, can avoid flowing through air-out pipeline 2's air current to impact speaker 4 for a long time and cause the condition that speaker 4 drops or damages in locating the second recess through speaker 4.
In an embodiment, the cross-sectional area of the air outlet pipe 2 gradually increases from the end close to the air outlet to the end far away from the air outlet, and the pipe diameter of the air outlet pipe 2 gradually increases, so that the air outlet pipe 2 has a diffusion effect, kinetic energy of air flow coming out of the air outlet of the volute 1 can be converted into pressure energy, static pressure efficiency is improved, flow loss is reduced, and air output of the volute 1 is improved, namely air output of the centrifugal fan is improved.
In this embodiment, the volute 1 includes two end plates and a surrounding plate, the two end plates are disposed opposite to each other, at least one of the two end plates forms an air inlet of the volute 1, two side edges of the surrounding plate are respectively connected to outer edges of the two end plates, two ends of the surrounding plate and the two end plates surround an air outlet of the volute 1, the air outlet pipeline 2 is formed by a first pipe wall 21, a second pipe wall, a third pipe wall 22 and a fourth pipe wall in a surrounding manner, the first pipe wall 21 and the third pipe wall 22 are respectively connected to two ends of the surrounding plate 12, the second pipe wall and the fourth pipe wall are respectively connected to the two surrounding plates 12, and along an air outlet direction of the air outlet pipeline 2, the first pipe wall 21 extends in a direction gradually away from the third pipe wall 22, so that a cross-sectional area of the air outlet pipeline 2 is gradually increased.
In this embodiment, the end plate and the surrounding plate may form the volute 1 by integral molding, and the air outlet duct 2 may be connected to the air outlet of the volute 1 by welding or integral molding.
In the present embodiment, the first pipe wall 21 includes a first diffuser section 211 and a second diffuser section 212, one end of the first diffuser section 211 is connected to one end of the enclosing plate, and the second diffuser section 212 is connected to the other end of the first diffuser section 211; an included angle theta 1 is formed between the first diffusion section 211 and the third pipe wall 22, an included angle theta 2 is formed between the second diffusion section 212 and the third pipe wall 22, the included angle theta 1 is smaller than or equal to the included angle theta 2 (in the attached drawing 1, the included angle theta 1 is equal to the included angle theta 2), when the included angle theta 1 is selected to be smaller than the included angle theta 2, primary diffusion is formed between the first diffusion section 211 and the third pipe wall 22, secondary diffusion is formed between the second diffusion section 212 and the third pipe wall 22, and therefore secondary diffusion can be achieved, and air output of the centrifugal fan can be greatly improved.
In the present embodiment, a support rod is connected between the sidewall of the first pipe wall 21 outside the second diffuser section 212 and the sidewall of the volute 1, and the second diffuser section 21 is supported by the support rod to enhance the structural stability.
In this embodiment, the vertical distance L between the connection between the second diffuser section 212 and the first diffuser section 211 and the air outlet of the air outlet duct 2 is: l is more than or equal to 0 and less than or equal to 300 mm.
The utility model discloses still provide a new trend module, this new trend module include new trend pipeline 5 and centrifugal fan, and this centrifugal fan's concrete structure refers to above-mentioned embodiment, because centrifugal fan has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is no longer given here.
In this embodiment, referring to fig. 2 and fig. 3, the output end of the fresh air duct 5 is communicated with the air inlet of the volute 1, the air outlet of the air outlet duct 2 is communicated with the indoor, and the air inlet of the fresh air duct 5 is communicated with the outdoor, so that the outdoor fresh air can be introduced into the indoor through the fresh air duct 5, the volute 1 and the air outlet duct 2 by the rotation of the impeller of the centrifugal fan, thereby improving the indoor air quality.
In this embodiment, the new trend module is still including purifying the module, and purifying the module and locating in new trend pipeline 5 with the new trend of convection current through new trend pipeline 5 and purifying, reintroducing the air after purifying to indoor to prevent that some outdoor dust or other granules from sneaking into in the indoor environment.
The utility model discloses still provide an air conditioner, this air conditioner include indoor set and new trend module, and the concrete structure of this new trend module refers to above-mentioned embodiment, because the new trend module has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is no longer given here.
In this embodiment, the indoor unit includes the air supply channel, and the air outlet and the air supply channel of new trend module are linked together, and like this, the new trend that the new trend module was introduced from the external world can be sent into to the air supply channel to flow into to indoor through the air supply channel.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. A centrifugal fan, comprising:
a volute provided with an air outlet; and
and the noise reduction module is arranged close to the air outlet.
2. The centrifugal fan of claim 1, further comprising an air outlet duct connected to the air outlet; the noise reduction module comprises a sound sensor, a loudspeaker and a controller, wherein the sound sensor and the loudspeaker are both arranged in the air outlet pipeline and are both electrically connected with the controller; the sound sensor is used for collecting noise signals and transmitting the noise signals to the controller; the controller is used for receiving the noise signals collected by the sound sensor and controlling the loudspeaker to emit sound waves with the same frequency and the opposite phase of the noise signals.
3. The centrifugal fan as claimed in claim 2, wherein the sound sensor and the speaker are sequentially disposed at intervals along a direction from one end of the air outlet duct close to the air outlet to the other end of the air outlet duct.
4. The centrifugal fan of claim 2, wherein the sound sensor is disposed proximate to an inlet end of the air outlet duct.
5. The centrifugal fan as claimed in claim 2, wherein the number of the sound sensors is plural, and the plural sound sensors are spaced along the inner circumferential surface of the air outlet duct.
6. The centrifugal fan as claimed in claim 2, wherein the number of the speakers is plural, and the plural speakers are spaced along the inner peripheral surface of the air outlet duct.
7. The centrifugal fan according to any one of claims 2 to 6, wherein the cross-sectional area of the air outlet duct increases from an end adjacent to the air outlet to an end remote from the air outlet.
8. A fresh air module, characterized in that, includes fresh air pipeline and the centrifugal fan of any one of claims 1 to 7, the output end of the fresh air pipeline is communicated with the air inlet of the volute.
9. The fresh air module set forth in claim 8 further comprising a purification module disposed in the fresh air duct for purifying fresh air flowing through the fresh air duct.
10. An air conditioner, characterized in that, including indoor set and the new trend module of claim 9, the indoor set includes the air supply passageway, the air outlet of new trend module with air supply passageway is linked together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022179535.3U CN213453921U (en) | 2020-09-28 | 2020-09-28 | Centrifugal fan, new trend module and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022179535.3U CN213453921U (en) | 2020-09-28 | 2020-09-28 | Centrifugal fan, new trend module and air conditioner |
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| Publication Number | Publication Date |
|---|---|
| CN213453921U true CN213453921U (en) | 2021-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022179535.3U Active CN213453921U (en) | 2020-09-28 | 2020-09-28 | Centrifugal fan, new trend module and air conditioner |
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| Country | Link |
|---|---|
| CN (1) | CN213453921U (en) |
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- 2020-09-28 CN CN202022179535.3U patent/CN213453921U/en active Active
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