WO2019124772A1 - Climatiseur pour un véhicule - Google Patents

Climatiseur pour un véhicule Download PDF

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Publication number
WO2019124772A1
WO2019124772A1 PCT/KR2018/014405 KR2018014405W WO2019124772A1 WO 2019124772 A1 WO2019124772 A1 WO 2019124772A1 KR 2018014405 W KR2018014405 W KR 2018014405W WO 2019124772 A1 WO2019124772 A1 WO 2019124772A1
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WO
WIPO (PCT)
Prior art keywords
air
heat exchanger
air conditioning
noise
flow path
Prior art date
Application number
PCT/KR2018/014405
Other languages
English (en)
Korean (ko)
Inventor
김태완
이종곤
김정선
Original Assignee
한온시스템 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 한온시스템 주식회사 filed Critical 한온시스템 주식회사
Publication of WO2019124772A1 publication Critical patent/WO2019124772A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
    • B60H1/00514—Details of air conditioning housings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • 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
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
    • B60H2001/006—Noise reduction

Definitions

  • the present invention relates to an air conditioner for a vehicle, and more particularly, to an air conditioner which can reduce the air conditioning noise transmitted to a vehicle interior by improving a microphone installation position and a number of an ANC device for reducing air conditioning noise, And an air conditioner capable of improving the ride comfort of the interior of the passenger compartment.
  • Noise is one of the biggest causes for lowering the ride comfort of the vehicle.
  • the noise of the air conditioner includes vibration and noise generated in the air conditioner compressor, vibration and noise generated in the high pressure refrigerant pipe, and vibration and noise generated in the blower of the air conditioner case. Such vibration and noise significantly deteriorate the ride feeling of the vehicle when it is transmitted to the passenger compartment.
  • the noise and vibration of the air conditioner are directly transmitted to the passenger compartment through the air conditioner case and the discharge vents of the air conditioner case, and the passengers in the passenger compartment feel severe stress and fatigue due to the noise and vibration transmitted. This not only lowers the ride quality of the vehicle, but also affects the driver's safe driving.
  • ANC Active Noise Control
  • a microphone 3 and a speaker 5 are provided in the air conditioning case 1, and the noise of the air conditioner (hereinafter referred to as " air conditioning "Quot; noise "), and then outputs a sound wave having a waveform opposite to the acquired air-conditioning noise to the speaker 5. Therefore, the air conditioning noise is canceled and the air conditioning noise is reduced.
  • the microphone 3 is installed on the blower 6 side. This is because most of the air conditioning noise is generated in the blower 6, thereby obtaining the noise of the blower 6 which occupies most of the air conditioning noise.
  • the speaker 5 is configured to be installed in a portion of the air mixing region A where air passing through the cooling heat exchanger 7 and air passing through the heating heat exchanger 8 are combined. This is for attenuating all the noise of the air passing through the heat exchanger (7) for cooling and the heat exchanger (8) for heating.
  • the conventional ANC technique has a structure in which the microphone 3 for acquiring the air conditioning noise is installed on the side of the blower 6 to mainly acquire noise on the side of the blower 6, It is impossible to obtain the air-conditioning noise which is generated at the portion other than the blower 6 because of such a disadvantage. As a result, there is a problem that the efficiency of air-conditioning noise reduction is low.
  • the main generated portions of the noise are different according to the mode conditions.
  • the discharged air of the blower 6 is supplied to the cooling heat exchanger 7
  • the air flow path is simple and most of the air conditioning noise is generated on the blower 6 side.
  • the air that has passed through the heating heat exchanger 8 collides with the inner wall surface 9a of the hot air flow path 9 corresponding to the downstream side of the heating heat exchanger 8 to form irregular vortices.
  • Rumble noise is generated in the warm air flow path 9 on the downstream side of the heating heat exchanger 8 due to the irregular vortex.
  • the structure of the microphone 3, which mainly acquires the noise on the blower 6 side is a structure in which, in the " warm mode ", the downstream side warm air flow path 9 of the heating heat exchanger 8
  • the air conditioning noise generated in the downstream side warm air flow path 9 of the heat exchanger 8 for heating can not be coped with in the " warm mode ", and as a result, And the "air conditioning noise reduction efficiency" in the "warm mode” is low.
  • the present invention has been made to solve the above-mentioned problems of the prior art, and an object of the present invention is to provide a microwave oven capable of acquiring both a blower side air conditioning noise and an air conditioning noise other than the blower To provide an air conditioner.
  • a vehicular air conditioning system comprises: an air conditioning case; a blower for sucking the inside and outside air to blow air into the inside channel of the air conditioning case; 1.
  • a vehicle air conditioning system comprising a heat exchanger, a heating heat exchanger for heating air blown into the internal flow path, and a noise reduction device for reducing air conditioning noise generated in the air conditioning case, At least one microphone installed on an internal flow path of the air conditioner case so as to obtain noise; And a speaker for outputting sound-attenuating sound waves to the internal flow path of the air-conditioning case based on the air-conditioning noise acquired by the microphone to attenuate the air-conditioning noise.
  • At least one microphone is provided in the internal air flow path of the air conditioning case in the hot air flow path portion on the downstream side of the heating heat exchanger so as to obtain the air conditioning noise on the downstream side of the heating heat exchanger.
  • the microphones are provided at two intervals in the hot air flow path portion downstream of the heating heat exchanger at regular intervals.
  • one of the microphones is installed on the inner wall surface of the hot air flow path corresponding to the heating heat exchanger in the hot air flow path on the downstream side of the heating heat exchanger and the other is air passing through the cooling heat exchanger, And the air-mixing zone is provided on a downstream side portion of the air-flow passage corresponding to the air-mixing zone where the air passing through the air-mixing zone is merged.
  • the speaker is installed in an air mixing area where air passing through the cooling heat exchanger and air passing through the heating heat exchanger are combined in the internal flow path of the air conditioning case;
  • the microphone corresponding to the air mixing area is spaced apart from the speaker installed in the air mixing area at a predetermined distance so as not to be affected by the sound attenuation sound outputted from the speaker.
  • the installation position and the number of the microphones are improved to obtain the air conditioning noise on the blower side and the air conditioning noise on the downstream side of the heat exchanger for heating. Therefore, There is an effect that it is possible to effectively cope with the generated air-conditioning noise on the blower side and the air-conditioning noise on the downstream side of the heating heat exchanger, which is mainly generated in the " warm mode ".
  • FIG. 1 is a view showing an ANC apparatus installed in a conventional automotive air conditioner
  • FIG. 2 is a side sectional view showing an ANC apparatus of a conventional automotive air conditioner
  • FIG. 3 is a view showing an ANC apparatus of a vehicle air conditioner according to the present invention, which is an example of a case where an ANC apparatus is installed in a semi-center mounting type air conditioner,
  • Fig. 4 is a side sectional view of Fig. 3, showing an ANC apparatus of a vehicle air conditioner according to the present invention
  • FIG. 5 is a graph showing an example of operation of the ANC apparatus constituting the automotive air conditioner of the present invention.
  • the frequency spectrum of the air conditioning noise reduced by the conventional ANC apparatus In the "warm mode", the frequency spectrum of the air conditioning noise reduced by the conventional ANC apparatus, A graph showing a comparison of the frequency spectra of the reduced air-conditioning noise,
  • FIG. 6 is a view showing an example in which an ANC apparatus of a vehicle air conditioner according to the present invention is installed in a center mounting type air conditioner,
  • FIG. 7 is a view showing an example in which an ANC apparatus of a vehicle air conditioner according to the present invention is installed in a rear air conditioner.
  • FIG. 3 a car air conditioner according to the present invention will be briefly described with reference to FIGS. 3 and 4.
  • FIG. 1 a car air conditioner according to the present invention will be briefly described with reference to FIGS. 3 and 4.
  • the air conditioner for a vehicle has an air conditioner case 10 in which a blower 12, a cooling heat exchanger 14 and a heating heat exchanger 16 are installed.
  • the blower 12 sucks the inside air and the outside air and blows air into the internal flow path 10a of the air conditioning case 10.
  • the cooling heat exchanger 14 cools the air blown into the internal flow path 10a, (16) heats the air blown to the inner flow path (10a).
  • the heating heat exchanger 14 is disposed on the internal flow path 10a and the heating heat exchanger 16 is connected to the hot air flow path 10b branched from the internal flow path 10a, And a tempo door 18 is provided at a branch point between the hot air passage 10b and the cold air passage 10c.
  • the cold air cooled by the cooling heat exchanger 14 passes through the cold air passage 10c
  • the warm air heated by the heating heat exchanger 16 passes through the warm air passage 10b
  • downstream portions of the cold air flow path 10c and the warm air flow path 10b are combined into one unit.
  • the combined air flow path 10c and the downstream portion of the hot air flow path 10b form the air mixing region A do.
  • the air mixing region A mixes warm air transferred along the hot air passage 10b and cold air flowing along the cold air passage 10c with each other. Accordingly, the hot air and the cold air mixed with each other are supplied to the passenger compartment through the respective air discharge vents 19 while maintaining an appropriate temperature.
  • the air conditioner of the present invention includes an ANC apparatus 20 which is a noise reducing apparatus capable of reducing air conditioning noise.
  • the ANC apparatus 20 which is a noise reduction apparatus, has at least two microphones 22 capable of acquiring air conditioning noise.
  • the microphones (22) are installed on the internal flow path (10a) of the air conditioning case (10). Particularly, a first microphone 22a provided on the blower 12 side portion of the internal flow path 10a of the air conditioning case 10 and a second microphone 22b provided on the downstream side warm air flow path 10b of the heating heat exchanger 16 Second and third microphones 22b and 22c.
  • the first microphone 22a is installed between the downstream side of the blower 12 and the cooling heat exchanger 14 and the first microphone 22a thus installed acquires the noise generated by the blower 12 .
  • the " cool mode " it is configured to acquire the noise of the blower 12 occupying most of the air conditioning noise.
  • the second and third microphones 22b and 22c are installed at a predetermined interval in the warm air flow path 10b on the downstream side of the heating heat exchanger 16.
  • the second microphone 22b is disposed on the inner wall surface 10b-1 of the hot air passage 10b corresponding to the heating heat exchanger 16 among the hot air passage 10b on the downstream side of the heating heat exchanger 16
  • the third microphone 22c is installed at the most downstream side portion of the hot air flow path 10b corresponding to the air mixing region A.
  • the second and third microphones 22b and 22c are configured to obtain the air conditioning noise generated on the downstream side of the heating heat exchanger 16.
  • the second microphone 22b causes the air that has passed through the heating heat exchanger 16 to collide against the inner wall surface 10b-1 of the hot air passage 10b to form a vortex And acquires a rumble-like noise generated by the noise.
  • the third microphone 22c is configured to acquire the air conditioning noise due to the irregular vortex generated during the process of flowing the air passing through the heating heat exchanger 16 along the hot air flow path 10b which is abruptly refracted.
  • the third microphone 22c is installed in the last part of the air flow path 10b where air vortexes occur. At this time, the third microphone 22c must be spaced apart from the speaker 30 (to be described later) installed in the air mixing area A at a predetermined interval.
  • the air conditioner of the present invention outputs a sound wave having a waveform opposite to the air conditioning noise based on the air conditioning noise acquired by the first to third microphones 22a, 22b, and 22c And a speaker 30 which is connected to the speaker.
  • the speaker 30 is provided on the internal flow path 10a of the air conditioning case 10 and is configured to be installed on the downstream portion of the air flow path 10c and the air flow path 10b.
  • a portion where the air that has passed through the cooling heat exchanger 14 and the air that has passed through the heat exchanger 16 for heating for example, a portion where the cold air passage 10c and the air passage 10b, And is installed in a part of the air conditioner case 10 corresponding to the area A.
  • the speaker 30 having such a structure can attenuate all of the noise of the air passing through the cooling heat exchanger 14 and the heating heat exchanger 16.
  • the air conditioner of the present invention includes a controller 40 for controlling the speaker 30 based on the air conditioning noise acquired by the first to third microphones 22a, 22b, and 22c, .
  • the control unit 50 is provided with a microprocessor and is configured to control the speaker 30 based on the air conditioning noise of the blower 12 input from the first microphone 22a in the "cool mode".
  • the speaker 30 is controlled so as to output a sound wave having a waveform opposite to the air conditioning noise of the blower 12, which is input from the first microphone 22a. Therefore, in the " cool mode ", the air conditioning noise generated at the blower 12 side is attenuated.
  • the control unit 40 is configured to control the speaker 30 based on the air conditioning noise on the downstream side of the heating heat exchanger 16 inputted from the second and third microphones 22b and 22c in the "warm mode" do.
  • the speaker 30 is controlled so as to output a sound wave having a waveform opposite to the air-conditioning noise on the downstream side of the heating heat exchanger 16 inputted from the second and third microphones 22b and 22c.
  • the air conditioning noise generated on the downstream side of the heating heat exchanger 16 is attenuated.
  • the flow noise of the air conveyed along the hot air flow path 10b which is abruptly refracted is efficiently attenuated.
  • the air conditioning noise on the downstream side of the heating heat exchanger 16 is obtained through the second and third microphones 22b and 22c in the " warm mode " The result of the air conditioning noise measured in the passenger compartment is remarkably reduced as compared with the conventional one.
  • the amplitude of the air-conditioning noise frequency wavelength is small, and the height difference between the bones and the floor is small.
  • the conventional air-conditioning noise is remarkably reduced and the "air-conditioning noise sensibility" of the passenger is remarkably lowered.
  • the installation positions and the number of the microphones 22a, 22b, and 22c are improved, and the air conditioning noise on the blower 12 side and the air conditioning noise on the downstream side of the heating heat exchanger 16 It is possible to effectively cope with the air conditioning noise of the blower 12 mainly generated in the " cool mode " and the air conditioning noise of the downstream side of the heating heat exchanger 16 mainly generated in the " warm mode " .
  • the air conditioning noise on the blower 12 side and the air conditioning noise on the downstream side of the heating heat exchanger 16 can be efficiently reduced, so that the efficiency of air conditioning noise reduction can be increased regardless of the mode state. As a result, it is possible to remarkably improve the riding comfort of the inside of the car.
  • the present invention can be applied to an air-conditioning apparatus of a center mounting type, in which the blower 12, the cooling heat exchanger 14 and the heating heat exchanger 16 are integrally formed, , It may be applied to a rear air conditioning apparatus for cooling and heating the upright portion of the interior of the vehicle.
  • the first to third microphones 22a, 22b, and 22c are installed on the blower 12 side portion and the downstream portion of the heating heat exchanger 16, as in the case of the semi-center mounting type air conditioner .
  • the first microphone 22a is installed between the downstream side of the blower 12 and the cooling heat exchanger 14, and the second microphone 22b is disposed between the downstream side of the blower 12 and the cooling heat exchanger 14, 1 is provided on the inner wall surface 10b-1 of the hot air flow path 10b corresponding to the heating heat exchanger 16 in the flow path 10b and the third microphone 22c is arranged on the inner wall surface 10b- And is disposed at the most downstream side portion of the warm air flow path 10b.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

La présente invention se rapporte à un climatiseur pour un véhicule. L'objectif de l'invention est d'améliorer une efficacité de réduction de bruit de climatisation transmis à l'intérieur d'un véhicule en améliorant la position d'installation, le nombre, etc. des microphones d'un dispositif de compensation des bruits ambiants pour réduire le bruit de climatisation, et améliorer ainsi la qualité du transport à l'intérieur du véhicule. Pour atteindre cet objectif, le climatiseur pour un véhicule selon l'invention comprend : un boîtier de climatiseur; une soufflante pour aspirer l'air intérieur et extérieur et le souffler sur un trajet d'écoulement interne du boîtier de climatiseur; un échangeur de chaleur de refroidissement pour refroidir l'air soufflé dans le trajet d'écoulement interne; un échangeur de chaleur de chauffage pour chauffer l'air soufflé dans le trajet d'écoulement interne; et un dispositif de réduction de bruit apte à réduire le bruit de climatisation généré dans le boîtier de climatiseur. Le dispositif de réduction de bruit comprend au moins un microphone installé dans le trajet d'écoulement interne du boîtier de climatiseur de façon à acquérir le bruit de climatisation; et un haut-parleur pour émettre des ondes sonores de réduction de bruit vers le trajet d'écoulement interne du boîtier de climatiseur sur la base du bruit de climatisation acquis par le microphone, ce qui permet de réduire le bruit de climatisation. Au moins un microphone est installé dans une partie d'un trajet d'écoulement d'air chaud dans le côté aval de l'échangeur de chaleur de chauffage du trajet d'écoulement interne du boîtier de climatiseur, de façon à acquérir le bruit de climatisation dans le côté aval de l'échangeur de chaleur de chauffage.
PCT/KR2018/014405 2017-12-19 2018-11-22 Climatiseur pour un véhicule WO2019124772A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2017-0174839 2017-12-19
KR1020170174839A KR102429335B1 (ko) 2017-12-19 2017-12-19 차량용 공조장치

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021084404A1 (fr) * 2019-10-27 2021-05-06 Silentium Ltd. Appareil, système et procédé de régulation active du bruit (anc) sur la base d'une configuration de chauffage, ventilation et climatisation (cvc)
JP2021085370A (ja) * 2019-11-28 2021-06-03 フォスター電機株式会社 空調機器用消音装置
US11935513B2 (en) 2019-10-27 2024-03-19 Silentium Ltd. Apparatus, system, and method of Active Acoustic Control (AAC)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114132147B (zh) * 2021-12-22 2024-03-08 上海马勒热系统有限公司 有限空间降噪进风壳体

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Publication number Priority date Publication date Assignee Title
JPS6220712A (ja) * 1985-07-22 1987-01-29 Nippon Denso Co Ltd 自動車用空調装置の騒音低減装置
JPS6220713A (ja) * 1985-07-22 1987-01-29 Nippon Denso Co Ltd 空調装置の騒音低減装置
JPH02147429A (ja) * 1988-11-29 1990-06-06 Nippondenso Co Ltd 自動車用究調装置の騒音低減装置
JP2512979B2 (ja) * 1988-01-22 1996-07-03 日本電装株式会社 自動車用空調装置の騒音低減装置
JP2555702B2 (ja) * 1988-07-25 1996-11-20 日本電装株式会社 空調装置の騒音低減装置

Patent Citations (5)

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Publication number Priority date Publication date Assignee Title
JPS6220712A (ja) * 1985-07-22 1987-01-29 Nippon Denso Co Ltd 自動車用空調装置の騒音低減装置
JPS6220713A (ja) * 1985-07-22 1987-01-29 Nippon Denso Co Ltd 空調装置の騒音低減装置
JP2512979B2 (ja) * 1988-01-22 1996-07-03 日本電装株式会社 自動車用空調装置の騒音低減装置
JP2555702B2 (ja) * 1988-07-25 1996-11-20 日本電装株式会社 空調装置の騒音低減装置
JPH02147429A (ja) * 1988-11-29 1990-06-06 Nippondenso Co Ltd 自動車用究調装置の騒音低減装置

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021084404A1 (fr) * 2019-10-27 2021-05-06 Silentium Ltd. Appareil, système et procédé de régulation active du bruit (anc) sur la base d'une configuration de chauffage, ventilation et climatisation (cvc)
US11034211B2 (en) 2019-10-27 2021-06-15 Silentium Ltd. Apparatus, system and method of active noise control (ANC) based on heating, ventilation and air conditioning (HVAC) configuration
US11935513B2 (en) 2019-10-27 2024-03-19 Silentium Ltd. Apparatus, system, and method of Active Acoustic Control (AAC)
JP2021085370A (ja) * 2019-11-28 2021-06-03 フォスター電機株式会社 空調機器用消音装置
EP4067771A4 (fr) * 2019-11-28 2023-01-11 Foster Electric Company, Limited Dispositif silencieux pour équipement de climatisation
JP7283715B2 (ja) 2019-11-28 2023-05-30 フォスター電機株式会社 空調機器用消音装置
US11763793B2 (en) 2019-11-28 2023-09-19 Foster Electric Company, Limited Silent device for air conditioning equipment

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Publication number Publication date
KR102429335B1 (ko) 2022-08-05
KR20190073724A (ko) 2019-06-27

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