-
公开(公告)号：US11700479B2
公开(公告)日：2023-07-11
申请号：US17560537
申请日：2021-12-23
Applicant: Alps Alpine Co., LTD
Inventor： Ryo Ito
CPC classification number: H04R1/2873 , H04R1/026 , H04R7/12
Abstract: An acoustic device includes a main body case, a vibrating body provided inside of the main body case, a magnetic circuit unit disposed in front of the vibrating body in a sound emitting direction of the vibrating body, a coil located inside of a magnetic gap of the magnetic circuit unit, a bobbin configured to support the coil and vibrate along with the vibrating body, and a damper configured to connect the main body case to the bobbin. The damper is disposed in the rear of the vibrating body, and a damper regulation unit is provided in the rear of the damper at a position facing the damper.
-
公开(公告)号：US11895475B2
公开(公告)日：2024-02-06
申请号：US17706992
申请日：2022-03-29
Applicant: Alps Alpine Co., LTD
Inventor： Ryo Ito
CPC classification number: H04R9/022 , H04R3/00 , H04R7/12 , H04R7/18 , H04R9/025 , H04R9/06 , H04R2400/11
Abstract: A rear side of a vibration part of a speaker is covered by a cover member, and a duct is provided at the cover member. The cover member has a recessed portion, and an air flow path is formed inside the recessed portion. A circuit part is mounted on an outer surface of the cover member, and a heat sink provided in the air flow path is connected to the circuit part to allow heat conduction. Due to vibration of the vibration part, an airflow in the air flow path is accelerated and thus the effect of dissipating heat from the heat sink is increased.
-
公开(公告)号：US20230164491A1
公开(公告)日：2023-05-25
申请号：US17734319
申请日：2022-05-02
Applicant: Alps Alpine Co., LTD
Inventor： Hiroki Toita , Ryosuke Tachi , Ryo Ito
CPC classification number: H04R9/027 , H04R1/2803 , H04R9/046 , G01R33/072 , H04R2400/11
Abstract: A vibrating unit includes a diaphragm and a bobbin, and a voice coil is secured to the bobbin. A detecting unit includes a moving magnet and a magnetic sensor. An annular magnet support is secured to a front edge of the bobbin, and the moving magnet is positioned and secured to the magnet support. The magnetic sensor is secured to a drive supporting unit. The moving magnet is secured to the bobbin, with the magnet support therebetween. This facilitates mounting and positioning of the moving magnet.
-
公开(公告)号：US11805367B2
公开(公告)日：2023-10-31
申请号：US17734319
申请日：2022-05-02
Applicant: Alps Alpine Co., LTD
Inventor： Hiroki Toita , Ryosuke Tachi , Ryo Ito
CPC classification number: H04R9/027 , G01R33/072 , H04R1/2803 , H04R3/002 , H04R9/025 , H04R9/046 , H04R9/06 , H04R29/001 , H04R2400/11
Abstract: A vibrating unit includes a diaphragm and a bobbin, and a voice coil is secured to the bobbin. A detecting unit includes a moving magnet and a magnetic sensor. An annular magnet support is secured to a front edge of the bobbin, and the moving magnet is positioned and secured to the magnet support. The magnetic sensor is secured to a drive supporting unit. The moving magnet is secured to the bobbin, with the magnet support therebetween. This facilitates mounting and positioning of the moving magnet.
-
Patent Agency Ranking
公开(公告)号：US20220329948A1
公开(公告)日：2022-10-13
申请号：US17706992
申请日：2022-03-29
Applicant: Alps Alpine Co., LTD
Inventor： Ryo Ito
Abstract: A rear side of a vibration part of a speaker is covered by a cover member, and a duct is provided at the cover member. The cover member has a recessed portion, and an air flow path is formed inside the recessed portion. A circuit part is mounted on an outer surface of the cover member, and a heat sink provided in the air flow path is connected to the circuit part to allow heat conduction. Due to vibration of the vibration part, an airflow in the air flow path is accelerated and thus the effect of dissipating heat from the heat sink is increased.
-
公开(公告)号：US20240187793A1
公开(公告)日：2024-06-06
申请号：US18519506
申请日：2023-11-27
Applicant: Alps Alpine Co., Ltd.
Inventor： Ryo Ito , Yuji Saito , Katsuhiko Egami , Hiroki Toita
Abstract: A magnetic circuit section having a main magnetic gap and sub-magnetic gaps is used. A vibrator is vibrated by an electromagnetic force generated by a voice current, which flows through a voice coil and a magnetic flux crossing the main magnetic gap. When the voice coil approaches or enters a sub-magnetic gap, the voice current which flows through the voice coil is reversed, temporarily cut-off or attenuated.
-
公开(公告)号：US20240080622A1
公开(公告)日：2024-03-07
申请号：US18455839
申请日：2023-08-25
Applicant: Alps Alpine Co., Ltd.
Inventor： Ryo Ito
CPC classification number: H04R7/18 , H04R9/025 , H04R9/06 , H04R2400/11
Abstract: In a frame, a diaphragm and an edge member are provided on a first side, and a magnetic driving portion having a magnetic circuit and a voice coil is provided on the second side. An edge support member is interposed between the edge accepting portion of the frame and the outer circumference fixing portion of the edge member. Part of the edge support member is a restricting portion extending toward the center of the frame. The restricting surface of the restricting portion faces the back of the edge member and diaphragm so as to be spaced with a distance.
-
公开(公告)号：US20240073597A1
公开(公告)日：2024-02-29
申请号：US18454980
申请日：2023-08-24
Applicant: Alps Alpine Co., Ltd.
Inventor： Ryo Ito
CPC classification number: H04R1/403 , H04R1/025 , H04R1/2819 , B60N2/879 , H04R2499/13
Abstract: A speaker unit on the left side and a speaker unit on the right side are included in a case positioned behind a listener. Sound generation openings and bass-reflex ports are formed in the case on the left side and right side. From each sound generation opening, sound pressure generated forward by the relevant speaker unit is output. Each bass-reflex port communicates with an air chamber to which sound pressure behind the speaker unit is transmitted. With each sound generation opening, the opening dimension in the up-down direction is larger than the opening dimension in the horizontal direction. With each bass-reflex port, as well, the opening dimension in the up-down direction is larger than the opening dimension in the horizontal direction.
-
公开(公告)号：US11750976B2
公开(公告)日：2023-09-05
申请号：US17538121
申请日：2021-11-30
Applicant: Alps Alpine Co., LTD
Inventor： Ryo Ito
CPC classification number: H04R7/02 , B60R11/0217
Abstract: One form of an in-vehicle sound emitting device includes a front case and a rear case. The front case is partitioned from the rear case by a partition plate made from a metal plate. Rear space inside the rear case is sealed, and an electronic circuit is disposed in the rear space. A loudspeaker is mounted in front space inside the front case. By using two of the partition plates having the same structure, the front case having the incorporated loudspeaker and the rear case having the incorporated electronic circuit can be disposed separately.
-
-
-
-
-
-
-
-
Search Results
9
records
(took 0.014 seconds)
