WO2019087665A1 - Dispositif variable de force d'atténuation d'amortisseur, système d'amortisseur équipé dudit dispositif, et véhicule équipé dudit système d'amortisseur - Google Patents

Dispositif variable de force d'atténuation d'amortisseur, système d'amortisseur équipé dudit dispositif, et véhicule équipé dudit système d'amortisseur Download PDF

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Publication number
WO2019087665A1
WO2019087665A1 PCT/JP2018/037082 JP2018037082W WO2019087665A1 WO 2019087665 A1 WO2019087665 A1 WO 2019087665A1 JP 2018037082 W JP2018037082 W JP 2018037082W WO 2019087665 A1 WO2019087665 A1 WO 2019087665A1
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WO
WIPO (PCT)
Prior art keywords
damper
damping force
force variable
variable device
airtight case
Prior art date
Application number
PCT/JP2018/037082
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English (en)
Japanese (ja)
Inventor
近藤　義広
道裕 浅沼
Original Assignee
日立オートモティブシステムズ株式会社
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Filing date
Publication date
Application filed by 日立オートモティブシステムズ株式会社 filed Critical 日立オートモティブシステムズ株式会社
Publication of WO2019087665A1 publication Critical patent/WO2019087665A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G13/00—Resilient suspensions characterised by arrangement, location or type of vibration dampers
    • B60G13/02—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dampers dissipating energy, e.g. frictionally
    • B60G13/06—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dampers dissipating energy, e.g. frictionally of fluid type
    • B60G13/12—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dampers dissipating energy, e.g. frictionally of fluid type quasi-fluid, i.e. having powdered medium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/02—Casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F30/00—Fixed transformers not covered by group H01F19/00
    • H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure
    • H01F30/10—Single-phase transformers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically

Definitions

  • the present invention relates to a technology for actively changing damper damping force, and more particularly to a damper damping force variable device that varies damping force by an electrical signal, a damper system including the device, and a vehicle equipped with the damper system. It is.
  • ERF is a fluid whose viscosity coefficient changes even under the same temperature and pressure when placed in an electric field, and has the feature that the viscosity can be reversibly controlled over a wide range of orders of magnitude by an external electric field.
  • the ERF-based damping force variable damper is highly responsive because it can directly control the viscosity of the fluid with an electrical signal, and it is highly reliable because it does not require a movable part to adjust fluid resistance (failure risk)
  • Patent Document 1 Japanese Patent Application Laid-Open No. 11-287283
  • An electro-rheological fluid is provided between the first and second liquid chambers provided at least in the inner cylinder and the outer cylinder and the inner cylinder being relatively rotated.
  • the wiring portion can be disposed in a noncontact state with the electro-rheological fluid, and there is no need to provide a complicated mechanism such as a seal member around the wiring portion, and the wiring portion can be provided with an electric field applying portion. It is said that the connection operation at the time of connection to the connector can be facilitated, and the workability at the time of assembly can be improved.
  • Patent Document 2 Japanese Patent Application Laid-Open No. 2007-064331
  • an electro-rheological fluid is sealed in a case, and a rotating body is incorporated in the case, one electrode is provided on the rotating body, and the other electrode is one electrode
  • the electrorheological fluid damper is provided in the case in such a manner that the gap between the two electrodes is filled with the electrorheological fluid, and the electric field is applied between the electrodes to control the torque of the rotating body.
  • An electrorheological fluid damper is disclosed, which is characterized in that an enclosed region of an electrorheological fluid and a gas chamber are partitioned by a plate-like elastic partition member.
  • Patent Document 2 in the electro-rheological fluid damper, it is supposed that the volume change due to the temperature of the electro-rheological fluid can be reliably compensated and a stable damping characteristic can be secured.
  • Control of a damping force variable damper using an ERF is usually performed by an on-board electronic control unit (ECU).
  • ECU electronice control unit
  • the use environment of a vehicle for example, an automobile
  • on-board ECUs are required to have high heat resistance, high weather resistance, and high vibration resistance.
  • the on-vehicle ECU is usually housed in an airtight case.
  • EMI electromagnetic interference
  • a vehicle-mounted ECU that controls the damping force variable damper needs a boost control circuit (for example, a circuit including a microprocessor, a switching element, a capacitor, a regulator, a boost transformer, and the like) for generating a high voltage.
  • a boost control circuit for example, a circuit including a microprocessor, a switching element, a capacitor, a regulator, a boost transformer, and the like
  • the step-up transformer is a component having the largest power consumption (about 10 W) of the power consumption of the step-up control circuit (for example, about 50 W per system). Furthermore, the step-up transformer is a representative electromagnetic noise source in a step-up control circuit, and it is desirable that an electromagnetic shield be provided as a countermeasure against EMI.
  • the step-up transformer which is most likely to generate heat in the step-up control circuit, is covered with the electromagnetic shield and mounted inside the airtight case for the on-vehicle ECU.
  • the temperature in the on-vehicle ECU exceeds the heatproof temperature of the electronic components that constitute the step-up control circuit. It is feared that it will cause dysfunction.
  • Patent Documents 1 and 2 unfortunately do not have any description or suggestion regarding the technology for solving the overheat problem in the on-vehicle ECU having such a boost control circuit. Therefore, it is an object of the present invention to solve the problem of overheating in a vehicle-mounted ECU having a step-up control circuit, a mechanism for efficiently removing heat generated by the step-up transformer even when the step-up transformer is covered by an electromagnetic shield.
  • An object of the present invention is to provide a damper damping force variable device having the same and a damper system provided with the device. Another object of the present invention is to provide a vehicle equipped with the damper system.
  • One embodiment of the present invention is a device for controlling the damping force of a damper using an electro-rheological fluid, wherein a step-up transformer and a microprocessor for controlling the step-up transformer are mounted;
  • An airtight case for accommodating the step-up control circuit board, the step-up transformer being covered with a box-shaped electromagnetic shield via a filler, and the electromagnetic shield facing the airtight case; It is an object of the present invention to provide a damper damping force variable device characterized in that one surface of a box shape is in contact with the inner surface of the airtight case, and the one surface facing the airtight case has a concavo-convex structure.
  • the present invention can add the following improvements and changes to the above-described damper damping force variable device (I).
  • the surface area of the one surface facing the airtight case is larger than the surface area of the one surface facing the step-up control circuit board.
  • the box shape of the electromagnetic shield is a square frustum shape, and the one surface opposite to the airtight case is a bottom surface of the square frustum shape.
  • the airtight case has a concavo-convex structure in a region in contact with the electromagnetic shield.
  • the electromagnetic shield has an average shape in which the one surface facing the airtight case is convex outward.
  • damping force variable damper system having a damper using an electro-rheological fluid and a damper damping force variable device, wherein the damper damping force variable device is the damper damping force described above. It is a variable device, and the damper damping force variable device and the damper are connected by a wire harness.
  • the damping force variable damper system is provided.
  • Yet another aspect of the present invention is a damping force variable damper system having a damper using an electro-rheological fluid and a damper damping force variable device, wherein the damper damping force variable device is the above-described damper damping It is a force variable device, and the damper damping force variable device is disposed directly on the damper, to provide a damping force variable damper system.
  • variable damping force damper system is the variable damping force damper system described above
  • the damper damping force variable device has a mechanism for efficiently removing heat generated by the step-up transformer even when the step-up transformer in the step-up control circuit is covered with an electromagnetic shield.
  • a damper system can be provided, and the overheat problem in a vehicle-mounted ECU having a boost control circuit can be solved.
  • a vehicle equipped with the damper system can be provided.
  • FIG. 7 is an enlarged cross-sectional schematic view showing an example of a damper damping force variable device according to a second embodiment. It is an enlarged section mimetic diagram showing an example of a damper damping force variable device concerning a third embodiment.
  • the vehicle of the present invention is not limited to an automobile, and may be a motorcycle or a railway. It is also good.
  • the technical idea of the damping force variable damper system of the present invention is not limited to the damper system for a suspension, and other vibration suppression (for example, engine mount), shock absorption (for example, bumper), torque control It is also possible to apply to (for example, a clutch, a torque converter).
  • FIG. 1 is a partially transparent perspective schematic view showing an example of a damping force variable damper system according to a first embodiment of the present invention and an automobile equipped with the damper system.
  • An automobile 100 shown in FIG. 1 is provided with a suspension 200 for each of the four wheels, and the suspension 200 has a spring 210 and a damper 220.
  • the damper 220 is a damper using ERF as a working fluid.
  • Each damper 220 is connected to a damper damping force variable device 400 which is a type of on-vehicle ECU via a wire harness 300.
  • the damper damping force variable device 400 has a boost control circuit board, which will be described later, inside thereof.
  • a combination of the damper 220, the wire harness 300 and the damper damping force variable device 400 is a damping force variable damper system according to the first embodiment.
  • the wheels of the automobile 100 vibrate by receiving forces of various frequencies, amplitudes, and directions depending on road surface conditions during traveling, speed, acceleration / deceleration, cornering, and the like.
  • the variable damping force damper system according to the present invention can quickly adjust the damping force of each damper 220 individually to such various road surface inputs, thereby achieving high tire contactability (running operability) and high vehicle attitude stability. It is compatible with the nature (ride comfort).
  • the damping force variable damper system of the present invention using the damper 220 using ERF has high responsiveness because the viscosity of the ERF can be directly controlled by an electric signal, and the movable property for adjusting fluid resistance It has the advantage of high reliability (small risk of failure) because it does not require a part.
  • the damping force variable damper system in the present invention does not deny that it includes components other than the damper 220 of the suspension 200 (for example, the spring 210, a bush and an arm not shown).
  • the damper damping force variable apparatus 400 is drawn as a central ECU system which controls four dampers 220 collectively (the four wire harnesses 300 are concentrated), the present invention is limited thereto It is not something to be done. For example, it may be divided into a damper damping force variable device in which two front wheels are combined and a damper damping force variable device in which two rear wheels are combined, or four each are connected to separate damper damping force variable devices May be
  • FIG. 2 is an exploded perspective schematic view showing an example of the damper damping force variable device according to the first embodiment.
  • the damper damping force variable device 400 is illustrated as a central ECU method (including four boosting control circuits) that collectively controls the four dampers 220.
  • the damper damping force variable device 400 is a substrate (boost control circuit board 430) in which a boost control circuit is formed in an airtight case (airtight case upper lid 410 + airtight case lower lid 420). ) Is accommodated.
  • the boost control circuit board 430 is configured, for example, by mounting the microprocessor 432, the switching element 433, the capacitor 434, the regulator 435, the boost transformer 436, etc. on the printed circuit board 431.
  • the step-up transformer 436 is covered with a box-shaped electromagnetic shield 440 as a measure against EMI.
  • the boost control circuit board 430 is provided with a connector 450 for connecting to the wire harness 300.
  • the dimensions of the airtight case are, for example, 200 mm ⁇ 150 mm ⁇ 50 mm, and the dimensions of the step-up transformer 436 are, for example, 40 mm ⁇ 40 mm ⁇ 40 mm It is.
  • FIG. 3 is an enlarged schematic cross-sectional view showing an example of the damper damping force variable device according to the first embodiment.
  • the step-up transformer 436 is mounted on the printed circuit board 431 via the input / output pin 437 and is covered by the electromagnetic shield 440. By covering with the electromagnetic shield 440, electromagnetic noise generated in the step-up transformer 436 can be shielded, and EMI to other elements of the step-up control circuit can be suppressed.
  • the frequency of the electromagnetic noise generated by the step-up transformer 436 is about 0.06 to 2 MHz. Therefore, from the viewpoint of the shielding effect, the electromagnetic shield 440 is preferably made of a metal material having high conductivity (for example, copper, aluminum).
  • the box-shaped electromagnetic shield 440 may have a configuration in which one surface facing the printed circuit board 431 is an opening surface, and the one surface is also covered with a metal material having high conductivity (that is, six surfaces). It may be a configuration in which all is covered with a highly conductive metal material). When one surface opposite to the printed circuit board 431 is an opening surface, it is more preferable to form a dummy circuit 438 on the printed circuit board 431 to provide an electromagnetic shielding effect.
  • a high thermal conductivity filler 460 for example, a high thermal conductivity potting material
  • the electromagnetic shield 440 one surface (upper surface in the figure) of the box shape facing the airtight case (the airtight case upper cover 410 in FIG. 3) is in contact with the inner surface of the airtight case (airtight case upper cover 410). ing.
  • the heat generation of the step-up transformer 436 can be efficiently transferred and dissipated to the airtight case upper lid 410 via the filler 460 and the electromagnetic shield 440.
  • the airtight case (here, at least the airtight case upper cover 410) in contact with the electromagnetic shield 440 be made of a corrosion-resistant metal material (eg, aluminum alloy, stainless steel).
  • a corrosion-resistant metal material eg, aluminum alloy, stainless steel.
  • a heat conductive material 470 for example, heat dissipation grease
  • the air gap which may be generated between the airtight case top cover 410 and the upper surface of the electromagnetic shield 440 can be filled, and a good heat transfer path (effective heat transfer area) can be secured.
  • the airtight case top cover 410 in the outer peripheral area (area of about 15 to 25 area%) of the upper surface (that is, contact surface) of the electromagnetic shield 440 It was found that the heat transfer contact with this tends to decrease with time.
  • the surface area of the upper surface of the electromagnetic shield 440 in contact with the airtight case upper lid 410 should be larger than the area (projected area) of the upper surface (one surface facing the printed circuit board 431). It is preferable to comprise.
  • the surface area of the upper surface of the electromagnetic shield 440 is preferably 1.2 times or more, more preferably 1.3 times or more, and still more preferably 1.35 times or more of the facing projected area of the upper surface. As a result, a sufficient effective heat transfer area can be ensured over time.
  • the uneven surface is formed on the contact surface of the electromagnetic shield 440.
  • the surface area can be expanded by about 1.4 times compared to that before the processing.
  • the concavo-convex structure also has the effect of enhancing the retention of the heat conducting material 470 between the airtight case top cover 410 and the top surface of the electromagnetic shield 440.
  • the uneven structure enables the upper surface of the electromagnetic shield 440 to exhibit a certain degree of springability, and the tolerance of the processing dimensional accuracy of the airtight case top cover 410 and the electromagnetic shield 440 is expanded, and the vibration resistance in heat transfer contact There are also secondary effects such as the improvement of sex.
  • the second embodiment is different from the first embodiment in the configuration of the electromagnetic shield, and the others are the same. Therefore, only parts different from the first embodiment will be described.
  • FIG. 4 is an enlarged cross-sectional schematic view showing an example of the damper damping force variable device according to the second embodiment.
  • the airtight case upper lid is drawn in a floating state (the airtight case upper lid and the airtight case lower lid are not fitted) so that the configuration of the electromagnetic shield can be easily understood.
  • the electromagnetic shield 441 of the damper damping force variable device 401 has an average shape in which the contact surface with the airtight case upper lid 410 is convex outward (convex upward in the drawing).
  • the contact surface can exhibit elasticity like a thin plate spring.
  • average shape said here shall mean the shape at the time of averaging concavo-convex structure (in other words, the shape before forming concavo-convex structure).
  • the third embodiment is different from the first embodiment in the configuration of the airtight case top lid, and the others are the same. Therefore, only parts different from the first embodiment will be described.
  • FIG. 5 is an enlarged schematic sectional view showing an example of the damper damping force variable device according to the third embodiment.
  • the airtight case (here, the airtight case upper lid 411) of the damper damping force variable device 402 has a concavo-convex structure in a region in contact with the electromagnetic shield 440.
  • the retention of the heat conduction material 470 between the airtight case top lid 411 and the upper surface of the electromagnetic shield 440 can be enhanced compared to the first embodiment.
  • the concavo-convex structure of the airtight case top lid 411 and the concavo-convex structure of the upper surface of the electromagnetic shield 440 are engaged, so that the vibration resistance in heat transfer contact is greatly improved.
  • the third embodiment may further incorporate the configuration of the second embodiment.
  • the fourth embodiment is different from the first embodiment in the configuration of the electromagnetic shield, and the others are the same. Therefore, only parts different from the first embodiment will be described.
  • FIG. 6 is an enlarged cross-sectional schematic view showing an example of the damper damping force variable device according to the fourth embodiment.
  • the area (projected area) of the contact surface with the airtight case upper lid 410 faces the contact surface (the printed circuit board 431 faces). It is configured to be larger than the area (projected area) of one side).
  • the electromagnetic shield 443 has a shape in which the square frustum is turned upside down, and the bottom surface of the square frustum is a contact surface with the airtight case top cover 410.
  • the fourth embodiment is advantageous in that the effective heat transfer area of the contact surface (upper surface in the drawing) of the electromagnetic shield 443 and the airtight case upper lid 410 can be easily expanded.
  • the fourth embodiment may further incorporate the configurations of the first to third embodiments.
  • the fifth embodiment is different from the first embodiment in the arrangement of the damper damping force variable device, and the other is the same. Therefore, only parts different from the first embodiment will be described.
  • FIG. 7 is a partially transparent perspective schematic view showing an example of a damping force variable damper system according to a fifth embodiment and an automobile equipped with the damper system.
  • the automobile 101 shown in FIG. 7 is provided with a suspension 201 for each of the four wheels, and the suspension 201 has a spring 210 and a damper 221.
  • the damper 221 is a damper using ERF as a working fluid.
  • the damper 220 is connected to the damper damping force variable device 400 via the wire harness 300, but in the fifth embodiment, the damper damping force variable device 404 is directly connected to the individual dampers 221. It is arranged. Each damper damping force variable device 404 is connected to the central ECU 405 via the wire harness 301.
  • the central ECU 405 is an ECU for controlling the four damper damping force variable devices 404 in an integrated manner.
  • the central ECU 405 is not an essential component in the present invention, but preferably disposed.
  • As the configuration of the damper damping force variable device 404 any of the configurations of the first to fourth embodiments can be used except that one system of boost control circuit is included.
  • the damper damping force variable device 404 is directly disposed on the damper 221, a cable with a high voltage specification (usually a thick insulating sheath is covered as the wire harness 301 to ensure insulation withstand voltage).
  • Communication cables generally, thin and light cables can be used. This greatly contributes to the ease of wiring and weight reduction of the wire harness.
  • the damper damping force variable device 404 is preferably fixed to the damper 221 via a fixing rib (for example, screwed and fixed to the outer cylinder of the damper 221).
  • a fixing rib for example, screwed and fixed to the outer cylinder of the damper 221.
  • a gap air gap through which air can flow is formed in a region other than the fixed rib and the high voltage connector for viscosity control of the ERF. Is preferred.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Prevention Devices (AREA)
  • Vehicle Body Suspensions (AREA)
  • Fluid-Damping Devices (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

L'invention vise à résoudre un problème de surchauffe dans une ECU embarquée comprenant un circuit de commande d'amplification. L'objet de la présente invention est de fournir un dispositif variable de force d'atténuation d'amortisseur qui comprend un mécanisme avec lequel, même dans un état dans lequel un transformateur d'amplification est recouvert d'un blindage électromagnétique, il est possible d'évacuer efficacement de la chaleur provenant du transformateur d'amplification, un système d'amortisseur équipé du dispositif, et un véhicule équipé du système d'amortisseur. Le dispositif variable de force d'atténuation d'amortisseur selon la présente invention est un dispositif permettant de commander la force d'atténuation d'un amortisseur faisant intervenir un fluide visqueux électrique, et comporte : un substrat de circuit de commande d'amplification sur lequel sont montés un transformateur d'amplification et un microprocesseur permettant de commander le transformateur d'amplification ; et un boîtier étanche à l'air dans lequel est logé le substrat de circuit de commande d'amplification. Le dispositif variable de force d'atténuation d'amortisseur est caractérisé en ce que : le transformateur d'amplification est recouvert d'un blindage électromagnétique en forme de boîte, une charge étant disposée entre eux ; une surface de la forme de boîte du blindage électromagnétique est en butée contre une surface interne du boîtier étanche à l'air située opposée au boîtier étanche à l'air ; et la surface située opposée au boîtier étanche à l'air comprend une structure comportant des nervures et des creux.
PCT/JP2018/037082 2017-10-31 2018-10-03 Dispositif variable de force d'atténuation d'amortisseur, système d'amortisseur équipé dudit dispositif, et véhicule équipé dudit système d'amortisseur WO2019087665A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017-210352 2017-10-31
JP2017210352A JP2019083269A (ja) 2017-10-31 2017-10-31 ダンパ減衰力可変装置、該装置を具備したダンパシステム、および該ダンパシステムを搭載した車両

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116454676A (zh) * 2023-03-23 2023-07-18 深圳市揽英科技有限公司 一种汽车线束及其连接器结构

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5425000Y2 (fr) * 1975-01-30 1979-08-22
JPS61231709A (ja) * 1985-04-06 1986-10-16 Nec Home Electronics Ltd 照明装置における安定器の取付方法
JPS61195025U (fr) * 1985-05-27 1986-12-04
JPH08113021A (ja) * 1994-10-19 1996-05-07 Nissan Motor Co Ltd 電気粘性流体を用いたショックアブソーバの減衰力制御装置
JP2013182911A (ja) * 2012-02-29 2013-09-12 Audio Technica Corp マイクロホン用トランス
WO2014033852A1 (fr) * 2012-08-29 2014-03-06 三菱電機株式会社 Dispositif de conversion de puissance embarqué

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5425000Y2 (fr) * 1975-01-30 1979-08-22
JPS61231709A (ja) * 1985-04-06 1986-10-16 Nec Home Electronics Ltd 照明装置における安定器の取付方法
JPS61195025U (fr) * 1985-05-27 1986-12-04
JPH08113021A (ja) * 1994-10-19 1996-05-07 Nissan Motor Co Ltd 電気粘性流体を用いたショックアブソーバの減衰力制御装置
JP2013182911A (ja) * 2012-02-29 2013-09-12 Audio Technica Corp マイクロホン用トランス
WO2014033852A1 (fr) * 2012-08-29 2014-03-06 三菱電機株式会社 Dispositif de conversion de puissance embarqué

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116454676A (zh) * 2023-03-23 2023-07-18 深圳市揽英科技有限公司 一种汽车线束及其连接器结构

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