WO2024120368A1 - Noise reduction apparatus, high-voltage wiring harness assembly and vehicle - Google Patents

Noise reduction apparatus, high-voltage wiring harness assembly and vehicle Download PDF

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Publication number
WO2024120368A1
WO2024120368A1 PCT/CN2023/136350 CN2023136350W WO2024120368A1 WO 2024120368 A1 WO2024120368 A1 WO 2024120368A1 CN 2023136350 W CN2023136350 W CN 2023136350W WO 2024120368 A1 WO2024120368 A1 WO 2024120368A1
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WIPO (PCT)
Prior art keywords
shell
noise reduction
reduction device
voltage wire
functional part
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PCT/CN2023/136350
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French (fr)
Chinese (zh)
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方源
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华为技术有限公司
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Publication of WO2024120368A1 publication Critical patent/WO2024120368A1/en

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  • the present application relates to the technical field of vehicles, and more particularly, to a noise reduction device, a high-voltage wire harness assembly and a vehicle.
  • high-voltage wiring harnesses are mainly responsible for the transmission of electric energy.
  • a large amount of current ripples will be generated in the high-voltage wiring harness, and these current ripples will generate electromagnetic radiation of a certain frequency.
  • These electromagnetic radiations act on some metal parts of the vehicle body, such as the body floor, door panels, battery pack cover, etc., which will generate electric force. These metal parts will vibrate under the action of electric force, and then the whole vehicle will generate vibration noise, affecting the user's driving experience.
  • the embodiments of the present application provide a high-voltage wire harness assembly and a vehicle to solve the problem that the high-voltage wire harness causes vibration and noise to the entire vehicle during power transmission, thereby reducing the user's driving experience.
  • a noise reduction device comprising: a shell and a functional part; the shell is made of an electromagnetic shielding material, an inner cavity of the shell is used to accommodate a high-voltage wire, and the high-voltage wire is used to transmit electrical energy in a vehicle; a functional part is attached to an inner wall of the inner cavity, and the functional part is used to absorb the force generated by the vibration of the high-voltage wire itself.
  • the shape and size of the shell and its inner cavity can be adjusted according to the number and shape of the high-voltage wires to be loaded, so that the shape and size of the shell are consistent with the shape of the high-voltage wires.
  • the housing further includes a first port and a second port, the first port is used to introduce the high-voltage wire, and the second port is used to lead out the high-voltage wire.
  • the high-voltage wire is contained in a shell made of electromagnetic shielding material, which effectively shields the electromagnetic radiation generated by the high-voltage wire during the transmission of electric energy, and suppresses the vibration noise generated by the electromagnetic radiation acting on components other than the high-voltage wire.
  • the functional part absorbs the vibration of the high-voltage wire itself during the transmission of electric energy, thereby effectively suppressing the vibration of other components in contact with the high-voltage wire caused by the high-voltage wire, and further reducing the vibration noise of the whole vehicle.
  • the shell includes a detachable first shell and a second shell, so that the first shell and the second shell together form an inner cavity.
  • the first shell may be disposed on the second shell.
  • the first shell may be a cover structure
  • the second shell may be a groove structure, so as to ensure that the high-voltage wire can be accommodated in the shell.
  • the high-voltage wire can be first carried in the second shell, and then the first shell is buckled on the second shell to complete the installation of the noise reduction device.
  • the first shell and the second shell are directly separated to separate the high-voltage wire from the noise reduction device.
  • the shell design in which the first shell and the second shell are separated facilitates the installation and disassembly of the above noise reduction device.
  • the above-mentioned device also includes: a first fixing member, and the first fixing member is used to fix the first shell and the second shell.
  • the first fixing member includes a buckle and a buckle hole, and the buckle is arranged on the first
  • the housing has a card hole disposed on the second housing.
  • the first shell may be in the shape of a wire harness guide groove
  • the clamping hole may be a clamping slot hole that matches the first shell
  • the positions of the above-mentioned clamping holes and clamping buckles can be swapped; in addition, the above-mentioned first shell and the second shell can be fixed by screw holes and nuts; the above-mentioned first shell and the second shell can also be directly fixed by bonding.
  • the second shell further includes a support frame and a second fixing member, the support frame is arranged on the lower surface of the second shell, and the second fixing member is used to fix the support frame inside the vehicle body.
  • the noise reduction device may be fixed to a body component inside a vehicle.
  • the support frame may be provided with openings for fixing to the vehicle body components by means of cable ties or bolts.
  • vehicle body parts may be door panels, vehicle body chassis, etc.
  • the above-mentioned noise reduction device can be installed only for the high-voltage wires that are close to the vehicle body parts to reduce the manufacturing cost of the whole vehicle.
  • the noise reduction device may include a plurality of support frames and second fixing members to further increase the stability of the noise reduction device when installed in a vehicle.
  • the stability of the noise reduction device can be further improved to prevent the noise reduction device from moving during the shaking of the vehicle and colliding with other vehicle components to produce collision noise, thereby further reducing the noise pollution of the entire vehicle.
  • the electromagnetic shielding material includes ferromagnetic material or conductive material.
  • the electromagnetic shielding material can be a ferromagnetic material or a conductive material. Ferromagnetic materials and conductive materials can make the shell have good electromagnetic radiation shielding performance, especially low-frequency electromagnetic radiation that can cause the above-mentioned vibration noise.
  • the ferromagnetic material can be silicon steel material, nickel-based alloy, rare earth alloy, etc.; the conductive material can be aluminum, iron, copper, etc.
  • the thickness of the shell is determined according to the material of which the shell is made.
  • the thickness of the shell may be 0.5 mm; when the shell is made of conductive material, the thickness of the shell may be 1.5 mm.
  • the shape of the inner cavity matches the high-voltage wire.
  • the stability of the high-voltage wire loaded in the shell can be further increased, so that the high-voltage wire will not swing inside the shell or collide with the inner wall of the shell due to the shaking of the vehicle, thereby avoiding abnormal noise caused thereby.
  • the functional part includes a first functional part and a second functional part, the first functional part is attached to the inner wall of the first shell, and the second functional part is attached to the inner wall of the second shell.
  • the first functional part may be disposed between the first shell and the high-voltage wire
  • the second functional part may be disposed between the second shell and the high-voltage wire
  • the vibration of the high-voltage wire during the transmission of electric energy can be effectively absorbed, and the vibration of other components in contact with the high-voltage wire caused by the high-voltage wire can be effectively suppressed, thereby further reducing the vibration noise of the whole vehicle.
  • the functional portion is a damping layer made of a damping material.
  • first functional part and the second functional part are also damping layers made of damping material.
  • first functional part and the second functional part can be a damping pad, or a layer of other materials that can play a damping role.
  • the vibration of the high-voltage wires during the transmission of electric energy can be effectively absorbed, thereby effectively suppressing the vibration of other components in contact with the high-voltage wires caused by the high-voltage wires, thereby further reducing the vibration noise of the entire vehicle.
  • the functional portion when the high-voltage wire is loaded in the shell, the functional portion is deformed.
  • the sum of the longitudinal section height h1 of the first functional part, the longitudinal section height h2 of the second functional part, and the longitudinal section height h3 of the high-voltage wire is equal to the inner height H of the shell.
  • the functional part can be fully in contact with the high-voltage wire, and then fully absorb the vibration force of the high-voltage wire itself, thereby suppressing the high-voltage wire from driving other components in contact with the high-voltage wire to vibrate together, further reducing the vibration noise of the whole vehicle, and at the same time, it can further increase the stability of the high-voltage wire loaded in the shell, so that the high-voltage wire will not swing inside the shell or contact the shell due to the shaking of the vehicle.
  • the inner wall collides, avoiding the abnormal noise caused by it.
  • a high-voltage wire harness assembly comprising a high-voltage wire harness and a noise reduction device in any possible implementation of the first aspect.
  • a vehicle comprising the noise reduction device in any possible implementation of the first aspect, or the high-voltage wire harness assembly in any possible implementation of the second aspect.
  • FIG. 1 is a noise reduction device 100 provided in an embodiment of the present application.
  • FIG. 2 is another noise reduction device 100 provided in an embodiment of the present application.
  • FIG. 3 is another noise reduction device 100 provided in an embodiment of the present application.
  • FIG. 4 is another noise reduction device 100 provided in an embodiment of the present application.
  • FIG. 5 is another noise reduction device 100 provided in an embodiment of the present application.
  • FIG5( a ) shows a schematic diagram of fixing a first shell and a second shell by means of a buckle hole.
  • FIG5( b ) shows another schematic diagram of fixing the first shell and the second shell by means of a buckle hole.
  • FIG5( c ) shows a schematic diagram of fixing the first shell and the second shell by means of screw holes and nuts.
  • FIG. 5 shows a schematic diagram of fixing the first shell and the second shell by bonding.
  • FIG. 6 is a schematic diagram showing the dimensional relationship of various components of a noise reduction device 100 provided in an embodiment of the present application.
  • FIG. 7 is another noise reduction device 100 provided in an embodiment of the present application.
  • FIG. 8 is a schematic diagram of the installation of a noise reduction device 100 provided in an embodiment of the present application.
  • first and second are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features.
  • the features defined as “first” and “second” may explicitly or implicitly include one or more of the features.
  • “multiple” refers to two or more than two, and “at least one” and “one or more” refer to one, two or more.
  • the singular expressions “one”, “a kind”, “said”, “above”, “the” and “this” are intended to also include expressions such as “one or more", unless there is a clear indication to the contrary in the context.
  • references to "one embodiment” or “some embodiments” etc. described in this specification mean that a particular feature, structure or characteristic described in conjunction with the embodiment is included in one or more embodiments of the present application.
  • the phrases “in one embodiment”, “in some embodiments”, “in some other embodiments”, “in some other embodiments”, etc. appearing in different places in this specification do not necessarily all refer to the same embodiment, but mean “one or more but not all embodiments", unless otherwise specifically emphasized in other ways.
  • the terms “including”, “comprising”, “having” and their variations all mean “including but not limited to”, unless otherwise specifically emphasized in other ways.
  • the terms “upper”, “lower”, “left”, “right”, “inside”, “outside”, “vertical”, “horizontal”, etc. indicate orientations or positional relationships that are defined relative to the orientations or positions of the components schematically placed in the drawings. It should be understood that these directional terms are relative concepts. They are used for description and clarification relative to the drawings, rather than indicating or implying that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. It may change accordingly according to the change in the orientation of the components placed in the drawings, and therefore cannot be understood as a limitation on the present application.
  • the "vertical” involved in the present application is not vertical in the strict sense, but is within the allowable error range.
  • “Parallel” is not parallel in the strict sense, but is within the allowable error range.
  • the noise reduction device provided in the present application is used for loading a high-voltage wire harness of a mobile carrier.
  • the mobile carrier in the present application may include a road vehicle, a water vehicle, an air vehicle, an industrial device, an agricultural device, or an entertainment device.
  • the mobile carrier may be a vehicle.
  • Vehicle is a vehicle in a broad sense, which can be a means of transportation (such as commercial vehicles, passenger cars, motorcycles, flying cars, trains, etc.), industrial vehicles (such as forklifts, trailers, tractors, etc.), engineering vehicles (such as excavators, bulldozers, cranes, etc.), agricultural equipment (such as mowers, harvesters, etc.), amusement equipment, toy vehicles, etc.
  • the embodiment of the application does not specifically limit the type of vehicle.
  • the mobile carrier can be a means of transportation such as an airplane or a ship.
  • the high-voltage battery pack of the new energy vehicle is connected to the drive motor through a high-voltage wire harness to provide electrical energy for the drive motor.
  • the connection wire harness between the drive motor and the high-voltage battery pack is usually relatively long, and it is necessary to fix the wire harness to the motor and the body of the vehicle by means of cable ties, wire harness brackets, etc. Since a power switch tube is required to adjust the power during the power supply of the high-voltage battery pack, and the switching frequency of the power switch tube is usually 20kHz, a large amount of current ripple will be generated in the high-voltage wire harness during the switching process.
  • the charging voltage of new energy vehicles is as high as 800V, but considering that the charging voltage of most charging piles at this stage is 400V, it is necessary to adapt the charging piles with a charging voltage of 400V. Therefore, during the charging process of new energy vehicles, the power switch of the motor controller will be used to boost the voltage, thereby generating a large amount of current ripple in the high-voltage wiring harness. Especially in this scenario, the vehicle is in a stationary state, and the vibration and noise of the whole vehicle caused by the current ripple will be more obvious, seriously affecting the user's driving experience.
  • the harness shielding layer is usually used to prevent the high-voltage harness from causing electromagnetic interference to the entire vehicle, so as to improve the electromagnetic compatibility of the entire vehicle.
  • some of the electromagnetic waves shielded by the harness shielding layer are ultra-high frequency electromagnetic waves, and the vibration noise of the above-mentioned entire vehicle is usually not caused by ultra-high frequency electromagnetic waves. Even if a harness shielding layer is added to the high-voltage harness, the vibration noise pollution of the above-mentioned entire vehicle cannot be avoided.
  • the high-voltage wiring harness will also be affected by high-amplitude current harmonics, causing the high-voltage wiring harness itself to generate high-frequency vibrations, and drive other components in contact with the high-voltage wiring harness to vibrate together, further increasing the vibration noise of the entire vehicle.
  • the embodiment of the present application proposes a noise reduction device, which suppresses the diffusion of electromagnetic radiation caused by current ripple and suppresses the vibration noise of other components caused by the high-frequency vibration of the high-voltage wire harness itself.
  • a noise reduction device which suppresses the diffusion of electromagnetic radiation caused by current ripple and suppresses the vibration noise of other components caused by the high-frequency vibration of the high-voltage wire harness itself.
  • FIG. 1 shows a noise reduction device 100 proposed in an embodiment of the present application.
  • a noise reduction device 100 proposed in the embodiments of the present application can be used to load high-voltage wires of new energy vehicles.
  • the noise reduction device 100 may include a housing 110 and a functional part 120, wherein the housing 110 is made of an electromagnetic shielding material, and the inner cavity of the housing 110 is used to accommodate a high-voltage wire, which is used to transmit electrical energy in a vehicle.
  • the inner wall of the inner cavity is attached with the functional part 120, which is used to absorb the force generated by the vibration of the high-voltage wire itself.
  • the multiple high-voltage wires can be referred to as a high-voltage wire harness.
  • the electromagnetic shielding material may be a ferromagnetic material or a conductive material. Ferromagnetic and conductive materials can enable the housing 110 to have good electromagnetic radiation shielding performance, especially low-frequency electromagnetic radiation that can cause the above-mentioned vibration noise.
  • the ferromagnetic material may be silicon steel, nickel-based alloy, rare earth alloy, etc.; the conductive material may be aluminum, iron, copper, etc.
  • the thickness of the shell 100 is determined according to the material of which the shell is made. For example, when the shell 100 is made of ferromagnetic material, the thickness of the shell 100 may be 0.5 mm; when the shell 100 is made of conductive material, the thickness of the shell 100 may be 1.5 mm.
  • the housing 110 made of electromagnetic shielding material contains the high-voltage wire, effectively shielding the electromagnetic radiation generated by the high-voltage wire during the transmission of electric energy, and suppressing the vibration noise generated by the electromagnetic radiation acting on components other than the high-voltage wire.
  • the functional part 120 absorbs the vibration of the high-voltage wire itself during the transmission of electric energy, thereby effectively suppressing the vibration of other components in contact with the high-voltage wire caused by the high-voltage wire, and further reducing the vibration noise of the whole vehicle.
  • FIG. 2 shows another noise reduction device 100 proposed in an embodiment of the present application.
  • the housing 110 may be adjusted according to the number and shape of the high-voltage wires to be loaded, so that the shape of the housing 110 is consistent with the shape of the high-voltage wires.
  • the high-voltage wire can be installed more firmly in the noise reduction device, preventing the noise reduction device 100 from shaking due to external reasons, causing the high-voltage wire to swing in the noise reduction device 100, collide, and then make abnormal noise, thereby further reducing the noise pollution of the whole vehicle.
  • FIG. 3 shows another noise reduction device 100 proposed in an embodiment of the present application.
  • the housing 110 includes a first port and a second port, wherein the first port is used to introduce the high-voltage wire, and the second port is used to lead out the high-voltage wire.
  • the housing 110 may be an integrally formed structure or may be composed of at least two parts.
  • the noise reduction device 100 may form a high-voltage wire harness assembly with the high-voltage wire, but this may result in difficulty in installing or disassembling the device. Based on this, another noise reduction device 100 is proposed in an embodiment of the present application.
  • FIG. 4 shows another noise reduction device 100 proposed in an embodiment of the present application.
  • the housing 110 of the noise reduction device 100 may include a detachable first housing 111 and a detachable second housing 112 , which are connected to form an inner cavity of the housing 110 .
  • the first housing 111 may be a cover structure, and the second housing 112 may be a groove structure, so as to ensure that the high-voltage wire can be accommodated in the housing 110.
  • the high-voltage wire may be first carried in the second housing 112, and then the first housing 111 may be buckled on the second housing 112 to complete the installation of the noise reduction device 100.
  • the first housing 111 and the second housing 112 may be directly separated to separate the high-voltage wire from the noise reduction device 100.
  • the housing design in which the first housing 111 and the second housing 112 are separated facilitates the installation and disassembly of the above noise reduction device 100 .
  • the inner shape of the first shell 111 is in the shape of a guide groove, so that the inner shape of the first shell 111 matches the outer shape of the high-voltage wire.
  • the shape and size of the first housing 111 can be adjusted according to the size and arrangement of the high-voltage wire.
  • the first housing 111 is in the shape of a wire harness guide groove.
  • the first shell 111 can guide and fix the high-voltage wire, thereby preventing the high-voltage wire from moving in the noise reduction device 100 and colliding to generate abnormal noise.
  • Fig. 5 shows a schematic diagram of another noise reduction device 100 proposed in an embodiment of the present application.
  • Fig. 5 (a) and Fig. 5 (b) show a schematic diagram of fixing the first shell and the second shell by means of buckle and buckle holes;
  • Fig. 5 (c) shows a schematic diagram of fixing the first shell and the second shell by means of screw holes and nuts;
  • Fig. 5 (d) shows a schematic diagram of fixing the first shell and the second shell by means of bonding.
  • the noise reduction device 100 further includes a first fixing member 140 , and the first fixing member 140 is used to fix the first shell 111 and the second shell 112 .
  • the first fixing member 140 may include a buckle 141 and a buckle hole 142, wherein the buckle 141 is disposed on the first shell 111 and the buckle hole 142 is disposed on the second shell 112, and the buckle 141 is inserted into the buckle hole 142 and then is buckled and fixed to fix the first shell 111 and the second shell 112 together.
  • the housing 110 may be in the shape of a wire harness guide groove
  • the above-mentioned latch hole 142 may be a latch slot hole
  • the first shell 111 and the second shell 112 may be fixed together in other ways.
  • the positions of the latch hole 142 and the buckle 141 may be swapped, and then the buckle 141 may be inserted into the latch hole 142 and then fixed by snapping, so as to fix the first shell 111 and the second shell 112 together; or, referring to (c) in FIG. 5 , the first shell 111 and the second shell 112 may be fixed by screw holes and nuts; or, referring to (d) in FIG. 5 , the first shell 111 and the second shell 112 may be directly fixed together by bonding, and 143 in the figure indicates the position of the bonding point.
  • the functional portion 120 includes a first functional portion 121 and a second functional portion 122, wherein the first functional portion 121 is attached to the inner wall of the first shell 111, and the second functional portion 122 is attached to the inner wall of the second shell 112.
  • the first functional portion 121 is disposed between the first shell 111 and the high-voltage wire
  • the second functional portion 122 is disposed between the second shell 112 and the high-voltage wire.
  • the functional part 120 may be a damping layer made of a damping material.
  • the first functional part 121 and the second functional part 122 may also be a damping layer made of a damping material.
  • the first functional part 121 and the second functional part 122 may be a damping pad or a layer of other materials that can play a damping role.
  • the functional part 120 is specifically provided with Here is how:
  • the first functional portion 121 and the second functional portion 122 may cover the inner wall of the side plate of the second shell 112 .
  • the functional part 120 may be disposed at the position where the high-voltage wire contacts the housing 110 , thereby reducing the manufacturing cost of the noise reduction device 100 .
  • the vibration of the high-voltage wire itself during the transmission of electric energy can be effectively absorbed, and the vibration of other components in contact with the high-voltage wire caused by the high-voltage wire can be effectively suppressed, thereby further reducing the vibration noise of the entire vehicle.
  • the functional portion 120 when the high-voltage wire is loaded in the housing 110, the functional portion 120 is deformed. Alternatively, the functional portion 120 and the high-voltage wire are in close contact.
  • FIG. 6 is a schematic diagram showing the dimensional relationship of various components of a noise reduction device 100 proposed in an embodiment of the present application.
  • the height relationship of the components of the noise reduction device 100 may be: .
  • H is the inner height of the housing 110
  • h1 is the longitudinal section height of the first functional portion 121
  • h2 is the longitudinal section height of the second functional portion 122
  • h3 is the longitudinal section height of the high-voltage wire.
  • the width relationship of the components of the noise reduction device 100 may be:.
  • W is the inner width of the above-mentioned shell 110
  • w1 is the cross-sectional width of the above-mentioned second functional part 122 on the left side wall of the inner cavity of the shell 110
  • w2 is the cross-sectional width of the above-mentioned second functional part 122 on the right side wall of the inner cavity of the shell 110
  • w3 is the cross-sectional width of the above-mentioned high-voltage wire
  • w4 is the gap between the high-voltage wires
  • N is the number of high-voltage wires loaded on the noise reduction device 100.
  • the width relationship of the various components of the noise reduction device 100 can be: if the functional part 120 and the high-voltage wire are to be in close contact, it is only necessary to ensure that the height relationship of the various components of the noise reduction device 100 meets the above.
  • the functional part 120 can be fully in contact with the high-voltage wire, and then fully absorb the vibration force of the high-voltage wire itself, thereby suppressing the high-voltage wire from driving other components in contact with the high-voltage wire to vibrate, further reducing the vibration noise of the entire vehicle, and further fixing the high-voltage wire to prevent it from shaking and colliding in the above-mentioned inner cavity and causing abnormal noise.
  • FIG. 7 shows a schematic diagram of another noise reduction device 100 proposed in an embodiment of the present application.
  • the second shell 112 when the noise reduction device 100 is applied to a vehicle, the second shell 112 further includes a support frame 150 and a second fixing member 160, wherein the support frame 150 is disposed on the outer bottom surface of the second shell 112, and the second fixing member 160 is used to fix the support frame 150 to a body component 170 of the vehicle.
  • the support frame 150 may be provided with openings for fixing to the vehicle body component 170 by means of cable ties or bolts.
  • the vehicle body component 170 may be a door sheet metal, a vehicle body chassis, etc.
  • the stability of the noise reduction device 100 can be further improved, and the noise reduction device 100 can be prevented from moving during the shaking of the vehicle and colliding with other vehicle interior components to produce collision noise, thereby further reducing the noise pollution of the entire vehicle.
  • the noise reduction device 100 can be installed only for the high-voltage wires that are close to the vehicle body parts.
  • the noise reduction device 100 may include a plurality of support frames 150 and second fixing members 160 to further increase the stability of the noise reduction device 100 when installed in a vehicle.
  • FIG8 shows a schematic diagram of the installation of a noise reduction device 100 proposed in an embodiment of the present application.
  • the above-mentioned noise reduction device 100 can be installed only for the high-voltage wire that is a first distance L from the vehicle floor 180.
  • the first distance L can be determined in advance through experiments, such as 10 cm.
  • the above noise reduction equipment is only installed on some high-voltage wires that may cause vibration to other vehicle body parts. While reducing the vibration and noise pollution of the entire vehicle, the cost of vehicle manufacturing is also controlled.
  • the embodiment of the present application further provides a high-voltage wire harness assembly, including a high-voltage wire and any one of the noise reduction devices 100 provided in the above embodiments, wherein the noise reduction device 100 is loaded with the high-voltage wire.
  • An embodiment of the present application further provides a vehicle, comprising any one of the noise reduction devices 100 provided in the above embodiments, or comprising the above high-voltage wire harness assembly.

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Abstract

Embodiments of the present application provide a noise reduction apparatus, relating to the technical field of vehicles. The apparatus comprises: a housing and a functional part; the housing is made of an electromagnetic shielding material, an inner cavity of the housing being used to accommodate high-voltage wires, and the high-voltage wires being used to transmit electrical energy in a vehicle; the functional part is attached to an inner wall of the inner cavity, the functional part being used to absorb force generated by vibration of the high-voltage wires. On the basis of said apparatus, by means of storing the high-voltage wires in the housing made of the electromagnetic shielding material, electromagnetic radiation generated by the high-voltage wires during transmission of electrical energy is effectively shielded, and vibration noise caused by electromagnetic radiation acting on components other than the high-voltage wires is suppressed. In addition, by means of employing the functional part to absorb the vibration of the high-voltage wires during the transmission of electric energy, vibration caused by the high-voltage wires driving other components in contact therewith is effectively suppressed, which further reduces the vibration noise of the entire vehicle. Embodiments provided by the present application can be applied to smart vehicles or new energy vehicles.

Description

一种降噪装置、高压线束总成和车辆Noise reduction device, high voltage wiring harness assembly and vehicle
本申请要求于2022年12月8日提交中国专利局、申请号为202211568636.7、发明名称为“一种降噪装置、高压线束总成和车辆”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。This application claims priority to a Chinese patent application filed with the China Patent Office on December 8, 2022, with application number 202211568636.7 and invention name “A noise reduction device, a high-voltage wiring harness assembly and a vehicle”, the entire contents of which are incorporated by reference into this application.
技术领域Technical Field
本申请涉及车辆技术领域，并且更具体地，涉及一种降噪装置、高压线束总成和车辆。The present application relates to the technical field of vehicles, and more particularly, to a noise reduction device, a high-voltage wire harness assembly and a vehicle.
背景技术Background technique
随着新能源技术的发展，新能源汽车也越来越普及，但是随着新能源汽车电动化、高压化程度的加深，也带来了相应的问题。With the development of new energy technologies, new energy vehicles are becoming more and more popular. However, as the electrification and high-voltage levels of new energy vehicles increase, corresponding problems have also arisen.
高压线束作为新能源汽车的能源***的重要部分，主要负责电能的传输。但是，在电能传输的过程中，高压线束内会产生大量的电流纹波，而这些电流纹波会产生一定频率的电磁辐射，这些电磁辐射作用在到车身的一些金属部件上，例如，车身底板、门板、电池包盖板等，会产生电动力，这些金属部件会在电动力的作用下发生振动，进而使整车产生振动噪声，影响用户的驾驶体验。As an important part of the energy system of new energy vehicles, high-voltage wiring harnesses are mainly responsible for the transmission of electric energy. However, during the transmission of electric energy, a large amount of current ripples will be generated in the high-voltage wiring harness, and these current ripples will generate electromagnetic radiation of a certain frequency. These electromagnetic radiations act on some metal parts of the vehicle body, such as the body floor, door panels, battery pack cover, etc., which will generate electric force. These metal parts will vibrate under the action of electric force, and then the whole vehicle will generate vibration noise, affecting the user's driving experience.
因此，如何降低高压线束输电过程中对整车造成的振动噪声，提升用户的驾乘体验，是一项亟需解决的问题。Therefore, how to reduce the vibration and noise caused to the entire vehicle during the transmission of high-voltage wire harnesses and improve the user's driving experience is an urgent problem that needs to be solved.
发明内容Summary of the invention
本申请实施例提供一种、高压线束总成和车辆，以解决高压线束输电过程中对整车造成振动噪声，降低用户驾乘体验的问题。The embodiments of the present application provide a high-voltage wire harness assembly and a vehicle to solve the problem that the high-voltage wire harness causes vibration and noise to the entire vehicle during power transmission, thereby reducing the user's driving experience.
第一方面，提供了一种降噪装置，包括：壳体和功能部；壳体由电磁屏蔽材料制成，壳体的内腔用于收容高压导线，高压导线用于在车辆中传输电能；内腔内壁附着有功能部，功能部用于吸收高压导线自身振动所产生的力。In a first aspect, a noise reduction device is provided, comprising: a shell and a functional part; the shell is made of an electromagnetic shielding material, an inner cavity of the shell is used to accommodate a high-voltage wire, and the high-voltage wire is used to transmit electrical energy in a vehicle; a functional part is attached to an inner wall of the inner cavity, and the functional part is used to absorb the force generated by the vibration of the high-voltage wire itself.
示例地，上述壳体及其内腔形状尺寸可以根据需要装载的高压导线的数量以及形状进行调整，使壳体的形状尺寸与高压导线的形状一致。For example, the shape and size of the shell and its inner cavity can be adjusted according to the number and shape of the high-voltage wires to be loaded, so that the shape and size of the shell are consistent with the shape of the high-voltage wires.
示例地，上述壳体还包括第一端口和第二端口，第一端口用于引入上述高压导线，第二端口用于引出上述高压导线。For example, the housing further includes a first port and a second port, the first port is used to introduce the high-voltage wire, and the second port is used to lead out the high-voltage wire.
基于上述技术方案，通过电磁屏蔽材料制成的壳体收纳高压导线，有效屏蔽高压导线在传输电能过程中产生的电磁辐射，抑制了电磁辐射作用于高压导线之外的部件所产生的振动噪声。另外，通过功能部来吸收高压导线在传输电能过程中自身振动，从而有效抑制因高压导线带动与高压导线接触的其他部件一起振动，进一步减少了整车的振动噪声。Based on the above technical solution, the high-voltage wire is contained in a shell made of electromagnetic shielding material, which effectively shields the electromagnetic radiation generated by the high-voltage wire during the transmission of electric energy, and suppresses the vibration noise generated by the electromagnetic radiation acting on components other than the high-voltage wire. In addition, the functional part absorbs the vibration of the high-voltage wire itself during the transmission of electric energy, thereby effectively suppressing the vibration of other components in contact with the high-voltage wire caused by the high-voltage wire, and further reducing the vibration noise of the whole vehicle.
结合第一方面，在第一方面的某些实现方式中，上述壳体包括可拆卸的第一壳体和第二壳体，以使得第一壳体和第二壳体共同形成内腔。In combination with the first aspect, in some implementations of the first aspect, the shell includes a detachable first shell and a second shell, so that the first shell and the second shell together form an inner cavity.
示例地，上述第一壳体可以设置于上述第二壳体之上。For example, the first shell may be disposed on the second shell.
示例地，上述第一壳体可以是一种盖板结构，上述第二壳体可以是一种凹槽结构，以此保证高压导线能够收纳于壳体之中。在高压导线安装降噪装置的过程中，可以先将上述高压导线承载于第二壳体之中，然后将第一壳体扣在第二壳体之上，即可完成对降噪装置的安装。在降噪装置从高压导线上拆卸的过程中，直接将上述第一壳体和第二壳体分开，即可将高压导线与降噪装置分开。For example, the first shell may be a cover structure, and the second shell may be a groove structure, so as to ensure that the high-voltage wire can be accommodated in the shell. In the process of installing the noise reduction device on the high-voltage wire, the high-voltage wire can be first carried in the second shell, and then the first shell is buckled on the second shell to complete the installation of the noise reduction device. In the process of removing the noise reduction device from the high-voltage wire, the first shell and the second shell are directly separated to separate the high-voltage wire from the noise reduction device.
基于上述技术方案，通过第一壳体和第二壳体分离的壳体设计，方便于上述降噪装置的安装与拆卸。Based on the above technical solution, the shell design in which the first shell and the second shell are separated facilitates the installation and disassembly of the above noise reduction device.
结合第一方面，在第一方面的某些实现方式中，上述装置还包括：第一固定件，该第一固定件用于将第一壳体与第二壳体固定。In combination with the first aspect, in some implementations of the first aspect, the above-mentioned device also includes: a first fixing member, and the first fixing member is used to fix the first shell and the second shell.
基于上述技术方案，能够保证第一壳体和第二壳体不会因车辆晃动而分离，形成较为稳定的屏蔽空间，使高压导线稳定收纳于壳体之中，提升了高压导线的稳定性。Based on the above technical solution, it can be ensured that the first shell and the second shell will not be separated due to the shaking of the vehicle, forming a relatively stable shielding space, so that the high-voltage wire can be stably stored in the shell, thereby improving the stability of the high-voltage wire.
结合第一方面，在第一方面的某些实现方式中，上述第一固定件包括卡扣和卡孔，卡扣设置于第一 壳体，卡孔设置于第二壳体。In combination with the first aspect, in some implementations of the first aspect, the first fixing member includes a buckle and a buckle hole, and the buckle is arranged on the first The housing has a card hole disposed on the second housing.
示例地，上述第一壳体可以是一种线束导向槽的形状，上述卡孔可以是一种卡槽孔，与第一壳体相匹配。For example, the first shell may be in the shape of a wire harness guide groove, and the clamping hole may be a clamping slot hole that matches the first shell.
示例地，上述卡孔和卡扣位置可以调换；此外，还可以通过螺孔和螺母将上述第一壳体和第二壳体进行固定；还可以直接将上述第一壳体和第二壳体通过粘接的方式进行固定。For example, the positions of the above-mentioned clamping holes and clamping buckles can be swapped; in addition, the above-mentioned first shell and the second shell can be fixed by screw holes and nuts; the above-mentioned first shell and the second shell can also be directly fixed by bonding.
基于上述技术方案，能够保证第一壳体和第二壳体不会因车辆晃动而分离，形成较为稳定的屏蔽空间，使高压导线稳定收纳于壳体之中，提升了高压导线的稳定性。Based on the above technical solution, it can be ensured that the first shell and the second shell will not be separated due to the shaking of the vehicle, forming a relatively stable shielding space, so that the high-voltage wire can be stably stored in the shell, thereby improving the stability of the high-voltage wire.
结合第一方面，在第一方面的某些实现方式中，上述第二壳体还包括支撑架和第二固定件，支撑架设置于第二壳体的下表面，第二固定件用于将支撑架固定于车辆的车身内部。In combination with the first aspect, in certain implementations of the first aspect, the second shell further includes a support frame and a second fixing member, the support frame is arranged on the lower surface of the second shell, and the second fixing member is used to fix the support frame inside the vehicle body.
示例地，上述降噪装置可以固定于车辆内部的车身部件上。For example, the noise reduction device may be fixed to a body component inside a vehicle.
示例地，上述支撑架可以设置开孔，用于通过扎带或者螺栓的形式与车身部件进行固定。For example, the support frame may be provided with openings for fixing to the vehicle body components by means of cable ties or bolts.
示例地，上述车身部件可以是车门钣金、车身底盘等。For example, the above-mentioned vehicle body parts may be door panels, vehicle body chassis, etc.
示例地，若部分高压导线与其他车身部件之间距离较远，则该部分高压导线传输电能的过程中对其他车身部件的电磁干扰有限，难以通过形成的电动力造成其他车身部件的振动。所以，可以只为距离车身部件较近的高压导线加装上述降噪装置，以降低整车制造成本。For example, if some high-voltage wires are far away from other vehicle body parts, the electromagnetic interference of these wires to other vehicle body parts during the transmission of electric energy is limited, and it is difficult to cause vibration of other vehicle body parts through the generated electric force. Therefore, the above-mentioned noise reduction device can be installed only for the high-voltage wires that are close to the vehicle body parts to reduce the manufacturing cost of the whole vehicle.
示例地，上述降噪装置中可以包括多个支撑架和第二固定件，以进一步增加降噪装置安装在车辆中的稳定性。For example, the noise reduction device may include a plurality of support frames and second fixing members to further increase the stability of the noise reduction device when installed in a vehicle.
基于上述技术方案，能够进一步提升降噪装置的稳定性，避免降噪装置在车辆晃动的过程中，发生窜动，与其他车内部件碰撞发出碰撞噪声。从而进一步减少了整车的噪声污染。Based on the above technical solution, the stability of the noise reduction device can be further improved to prevent the noise reduction device from moving during the shaking of the vehicle and colliding with other vehicle components to produce collision noise, thereby further reducing the noise pollution of the entire vehicle.
结合第一方面，在第一方面的某些实现方式中,上述电磁屏蔽材料包括铁磁材料或导电材料。In combination with the first aspect, in certain implementations of the first aspect, the electromagnetic shielding material includes ferromagnetic material or conductive material.
示例地，上述电磁屏蔽材料可以是铁磁材料或者导电材料，基于铁磁材料和导电材料能够使壳体具有良好的电磁辐射屏蔽性能，尤其是能够引起上述振动噪声的低频电磁辐射。其中铁磁材料可以是硅钢材料、镍基合金、稀土合金等；导电材料可以是铝、铁、铜等。For example, the electromagnetic shielding material can be a ferromagnetic material or a conductive material. Ferromagnetic materials and conductive materials can make the shell have good electromagnetic radiation shielding performance, especially low-frequency electromagnetic radiation that can cause the above-mentioned vibration noise. The ferromagnetic material can be silicon steel material, nickel-based alloy, rare earth alloy, etc.; the conductive material can be aluminum, iron, copper, etc.
示例地，上述壳体的厚度根据壳体制成材料确定，例如，当上述壳体由铁磁材料制成时，壳体的厚度可以为0.5mm；当上述壳体由导电材料制成时，壳体的厚度可以为1.5mm。For example, the thickness of the shell is determined according to the material of which the shell is made. For example, when the shell is made of ferromagnetic material, the thickness of the shell may be 0.5 mm; when the shell is made of conductive material, the thickness of the shell may be 1.5 mm.
基于上述技术方案，通过选用抑制能够引发上述振动噪声的低频电磁辐射的材料作为壳体的材料，能够有效抑制电磁辐射作用于高压导线之外的部件所产生的振动噪声。Based on the above technical solution, by selecting a material that suppresses low-frequency electromagnetic radiation that can cause the above vibration noise as the material of the shell, the vibration noise generated by electromagnetic radiation acting on components other than the high-voltage wire can be effectively suppressed.
结合第一方面，在第一方面的某些实现方式中，上述内腔的形状与高压导线相匹配。In combination with the first aspect, in certain implementations of the first aspect, the shape of the inner cavity matches the high-voltage wire.
基于上述技术方案，能够进一步增加装载于壳体内的高压导线的稳定性，使高压导线不会因车辆晃动而在壳体内部摆动或者与壳体内壁发生碰撞，避免了因此造成的异响。Based on the above technical solution, the stability of the high-voltage wire loaded in the shell can be further increased, so that the high-voltage wire will not swing inside the shell or collide with the inner wall of the shell due to the shaking of the vehicle, thereby avoiding abnormal noise caused thereby.
结合第一方面，在第一方面的某些实现方式中，上述功能部包括第一功能部和第二功能部，该第一功能部附着在上述第一壳体的内壁上，该第二功能部附着在上述第二壳体的内壁上。In combination with the first aspect, in some implementations of the first aspect, the functional part includes a first functional part and a second functional part, the first functional part is attached to the inner wall of the first shell, and the second functional part is attached to the inner wall of the second shell.
示例地，上述第一功能部可以设置于第一壳体与高压导线之间，上述第二功能部可以设置于第二壳体与高压导线之间。For example, the first functional part may be disposed between the first shell and the high-voltage wire, and the second functional part may be disposed between the second shell and the high-voltage wire.
基于上述技术方案，通过合理设置功能部的位置，有效吸收高压导线在传输电能过程中自身振动，能够有效抑制因高压导线带动与高压导线接触的其他部件一起振动，进一步减少了整车的振动噪声。Based on the above technical solution, by reasonably setting the position of the functional part, the vibration of the high-voltage wire during the transmission of electric energy can be effectively absorbed, and the vibration of other components in contact with the high-voltage wire caused by the high-voltage wire can be effectively suppressed, thereby further reducing the vibration noise of the whole vehicle.
结合第一方面，在第一方面的某些实现方式中，上述功能部是由阻尼材料制成的阻尼层。In combination with the first aspect, in certain implementations of the first aspect, the functional portion is a damping layer made of a damping material.
示例地，上帝第一功能部和上述第二功能部也是由阻尼材料制成的阻尼层。此外，上述第一功能部和上述第二功能部可以是一种阻尼垫，也可以是能够起到阻尼作用的一层其他材料。For example, the first functional part and the second functional part are also damping layers made of damping material. In addition, the first functional part and the second functional part can be a damping pad, or a layer of other materials that can play a damping role.
基于上述技术方案，通过选用阻尼材料，能够有效吸收高压导线在传输电能过程中自身振动，从而有效抑制因高压导线带动与高压导线接触的其他部件一起振动，进一步减少了整车的振动噪声。Based on the above technical solution, by selecting damping materials, the vibration of the high-voltage wires during the transmission of electric energy can be effectively absorbed, thereby effectively suppressing the vibration of other components in contact with the high-voltage wires caused by the high-voltage wires, thereby further reducing the vibration noise of the entire vehicle.
结合第一方面，在第一方面的某些实现方式中，当上述高压导线装载在上述壳体内，上述功能部发生形变。In combination with the first aspect, in certain implementations of the first aspect, when the high-voltage wire is loaded in the shell, the functional portion is deformed.
示例地，上述第一功能部的纵截面高度h1与上述第二功能部的纵截面高度h2与上述高压导线的纵截面高度h3之和等于上述壳体的内高H。For example, the sum of the longitudinal section height h1 of the first functional part, the longitudinal section height h2 of the second functional part, and the longitudinal section height h3 of the high-voltage wire is equal to the inner height H of the shell.
基于上述技术方案，能够使功能部充分与高压导线接触，进而充分吸收高压导线自身的振动力，进而抑制高压导线带动与高压导线接触的其他部件一起振动，进一步减少了整车的振动噪声，同时能够进一步增加装载于壳体内的高压导线的稳定性，使高压导线不会因车辆晃动而在壳体内部摆动或者与壳体 内壁发生碰撞，避免了因此造成的异响。Based on the above technical solution, the functional part can be fully in contact with the high-voltage wire, and then fully absorb the vibration force of the high-voltage wire itself, thereby suppressing the high-voltage wire from driving other components in contact with the high-voltage wire to vibrate together, further reducing the vibration noise of the whole vehicle, and at the same time, it can further increase the stability of the high-voltage wire loaded in the shell, so that the high-voltage wire will not swing inside the shell or contact the shell due to the shaking of the vehicle. The inner wall collides, avoiding the abnormal noise caused by it.
第二方面，提出了一种高压线束总成，包括高压线束和前述第一方面中任一种可能的实现方式中的降噪装置。In a second aspect, a high-voltage wire harness assembly is proposed, comprising a high-voltage wire harness and a noise reduction device in any possible implementation of the first aspect.
第三方面，提出了一种车辆，包括前述第一方面中任一种可能的实现方式中的降噪装置，或者，前述第二方面中任一种可能的实现方式中的高压线束总成。In a third aspect, a vehicle is proposed, comprising the noise reduction device in any possible implementation of the first aspect, or the high-voltage wire harness assembly in any possible implementation of the second aspect.
上述第二方面、第三方面中所涉及的装置的有益效果可以参考第一方面，为简洁，不再赘述。The beneficial effects of the devices involved in the second and third aspects mentioned above can be referred to the first aspect, and will not be elaborated for the sake of brevity.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1是本申请实施例提供的一种降噪装置100。FIG. 1 is a noise reduction device 100 provided in an embodiment of the present application.
图2是本申请实施例提供的又一种降噪装置100。FIG. 2 is another noise reduction device 100 provided in an embodiment of the present application.
图3是本申请实施例提供的又一种降噪装置100。FIG. 3 is another noise reduction device 100 provided in an embodiment of the present application.
图4是本申请实施例提供的又一种降噪装置100。FIG. 4 is another noise reduction device 100 provided in an embodiment of the present application.
图5是本申请实施例提供的又一种降噪装置100。FIG. 5 is another noise reduction device 100 provided in an embodiment of the present application.
图5中的(a)示出了一种通过卡扣卡孔固定第一壳体和第二壳体的示意图。FIG5( a ) shows a schematic diagram of fixing a first shell and a second shell by means of a buckle hole.
图5中的(b)示出了又一种通过卡扣卡孔固定第一壳体和第二壳体的示意图。FIG5( b ) shows another schematic diagram of fixing the first shell and the second shell by means of a buckle hole.
图5中的(c)示出了一种通过螺孔和螺母固定第一壳体和第二壳体的示意图。FIG5( c ) shows a schematic diagram of fixing the first shell and the second shell by means of screw holes and nuts.
图5中的(d)示出了一种通过粘接的方式固定第一壳体和第二壳体的示意图。(d) in FIG. 5 shows a schematic diagram of fixing the first shell and the second shell by bonding.
图6是本申请实施例提供的一种降噪装置100各部件的尺寸关系示意图。FIG. 6 is a schematic diagram showing the dimensional relationship of various components of a noise reduction device 100 provided in an embodiment of the present application.
图7是本申请实施例提供的又一种降噪装置100。FIG. 7 is another noise reduction device 100 provided in an embodiment of the present application.
图8是本申请实施例提供的一种降噪装置100的加装示意图。FIG. 8 is a schematic diagram of the installation of a noise reduction device 100 provided in an embodiment of the present application.
具体实施方式Detailed ways
下面将结合附图，对本申请实施例中的技术方案进行描述。The technical solutions in the embodiments of the present application will be described below in conjunction with the accompanying drawings.
需要说明的是，在本申请实施例的描述中，除非另有说明，“/”表示或的意思，例如，A/B可以表示A或B；本文中的“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。It should be noted that, in the description of the embodiments of the present application, unless otherwise specified, “/” means or, for example, A/B can mean A or B; the “and/or” in this article is merely a way to describe the association relationship of associated objects, indicating that three relationships may exist, for example, A and/or B can mean: A exists alone, A and B exist at the same time, and B exists alone.
本申请实施例中，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。另外，在本申请实施例的描述中，“多个”是指两个或多于两个，“至少一个”和“一个或多个”是指一个、两个或两个以上。单数表达形式“一个”“一种”“所述”“上述”“该”和“这一”旨在也包括例如“一个或多个”这种表达形式，除非其上下文中明确地有相反指示。In the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In addition, in the description of the embodiments of the present application, "multiple" refers to two or more than two, and "at least one" and "one or more" refer to one, two or more. The singular expressions "one", "a kind", "said", "above", "the" and "this" are intended to also include expressions such as "one or more", unless there is a clear indication to the contrary in the context.
在本说明书中描述的参考“一个实施例”或“一些实施例”等意味着在本申请的一个或多个实施例中包括结合该实施例描述的特定特征、结构或特点。由此，在本说明书中的不同之处出现的语句“在一个实施例中”、“在一些实施例中”、“在其他一些实施例中”、“在另外一些实施例中”等不是必然都参考相同的实施例，而是意味着“一个或多个但不是所有的实施例”，除非是以其他方式另外特别强调。术语“包括”、“包含”、“具有”及它们的变形都意味着“包括但不限于”，除非是以其他方式另外特别强调。References to "one embodiment" or "some embodiments" etc. described in this specification mean that a particular feature, structure or characteristic described in conjunction with the embodiment is included in one or more embodiments of the present application. Thus, the phrases "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. appearing in different places in this specification do not necessarily all refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.
本申请实施例的描述中，术语“上”、“下”、“左”、“右”、“内”、“外”、“垂直”、“水平”等指示的方位或位置关系为相对于附图中的部件示意放置的方位或位置来定义的，应当理解到，这些方向性术语是相对的概念，它们用于相对于的描述和澄清，而不是指示或暗示所指的装置或元器件必须具有的特定的方位、或以特定的方位构造和操作，其可以根据附图中部件所放置的方位的变化而相应地发生变化，因此不能理解为对本申请的限定。此外，本申请中所涉及的“垂直”并不是严格意义上的垂直，而是在误差允许范围之内。“平行”并不是严格意义上的平行，而是在误差允许范围之内。In the description of the embodiments of the present application, the terms "upper", "lower", "left", "right", "inside", "outside", "vertical", "horizontal", etc. indicate orientations or positional relationships that are defined relative to the orientations or positions of the components schematically placed in the drawings. It should be understood that these directional terms are relative concepts. They are used for description and clarification relative to the drawings, rather than indicating or implying that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. It may change accordingly according to the change in the orientation of the components placed in the drawings, and therefore cannot be understood as a limitation on the present application. In addition, the "vertical" involved in the present application is not vertical in the strict sense, but is within the allowable error range. "Parallel" is not parallel in the strict sense, but is within the allowable error range.
本申请实施例中以同一附图标记表示同一组成部分或同一零部件，对于本申请实施例中相同的零部件，图中可能仅以其中一个零件或部件为例标注了附图标记，应理解的是，对于其他相同的零件或部件，附图标记同样适用。另外，附图中各个零部件并非按比例绘制，图中示出的零部件的尺寸和大小仅为示例性的，不应理解为对本申请的限定。In the embodiments of the present application, the same reference numerals are used to represent the same components or parts. For the same parts in the embodiments of the present application, only one of the parts or parts may be marked with a reference numeral in the figure. It should be understood that the reference numerals are also applicable to other identical parts or parts. In addition, the various parts in the drawings are not drawn to scale, and the sizes and dimensions of the parts shown in the drawings are only exemplary and should not be understood as limiting the present application.
本申请提供的降噪装置用于装载移动载体的高压线束，本申请中的移动载体可以包括路上交通工具、水上交通工具、空中交通工具、工业设备、农业设备、或娱乐设备等。例如移动载体可以为车辆，该车 辆为广义概念上的车辆，可以是交通工具(如商用车、乘用车、摩托车、飞行车、火车等)，工业车辆(如：叉车、挂车、牵引车等)，工程车辆(如挖掘机、推土车、吊车等)，农用设备(如割草机、收割机等)，游乐设备，玩具车辆等，本申请实施例对车辆的类型不作具体限定。再如，移动载体可以为飞机、或轮船等交通工具。The noise reduction device provided in the present application is used for loading a high-voltage wire harness of a mobile carrier. The mobile carrier in the present application may include a road vehicle, a water vehicle, an air vehicle, an industrial device, an agricultural device, or an entertainment device. For example, the mobile carrier may be a vehicle. Vehicle is a vehicle in a broad sense, which can be a means of transportation (such as commercial vehicles, passenger cars, motorcycles, flying cars, trains, etc.), industrial vehicles (such as forklifts, trailers, tractors, etc.), engineering vehicles (such as excavators, bulldozers, cranes, etc.), agricultural equipment (such as mowers, harvesters, etc.), amusement equipment, toy vehicles, etc. The embodiment of the application does not specifically limit the type of vehicle. For another example, the mobile carrier can be a means of transportation such as an airplane or a ship.
以上述的车辆为新能源汽车为例，新能源汽车的高压电池包通过高压线束连接驱动电机，为驱动电机提供电能。由于整车布置的原因，驱动电机与高压电池包之间的连接线束通常比较长，需要通过扎带，线束支架等方式将线束固定在电机和整车的车身上。由于在高压电池包供电的过程中，需要使用功率开关管调节功率，而功率开关管的开关频率通常在20kHz，在开关的过程中，则会使高压线束中产生大量电流纹波。基于电磁感应原理可知，车身内的一些金属部件，尤其是一些薄板结构的金属部件，会在由电磁产生的电动力作用下，发生与功率开关管开关频率相关的振动，进而产生振动噪声，严重影响了用户的驾乘体验。Taking the above-mentioned vehicle as a new energy vehicle as an example, the high-voltage battery pack of the new energy vehicle is connected to the drive motor through a high-voltage wire harness to provide electrical energy for the drive motor. Due to the layout of the entire vehicle, the connection wire harness between the drive motor and the high-voltage battery pack is usually relatively long, and it is necessary to fix the wire harness to the motor and the body of the vehicle by means of cable ties, wire harness brackets, etc. Since a power switch tube is required to adjust the power during the power supply of the high-voltage battery pack, and the switching frequency of the power switch tube is usually 20kHz, a large amount of current ripple will be generated in the high-voltage wire harness during the switching process. Based on the principle of electromagnetic induction, some metal parts in the car body, especially some metal parts with thin plate structures, will vibrate related to the switching frequency of the power switch tube under the action of the electromotive force generated by the electromagnetic field, thereby generating vibration noise, which seriously affects the user's driving experience.
另外，在给新能源汽车充电的场景中，同样存在上述振动噪声严重的问题。现阶段新能源汽车的充电电压高达800V，但是考虑到现阶段大多数充电桩的充电电压为400V，所以需要对400V充电电压的充电桩适配。因此，在新能源汽车充电过程中，会利用到电机控制器的功率开关来进行升压，从而使高压线束中产生大量电流纹波。尤其是在该场景下，车辆是处于静止状态，因电流纹波引起的整车的振动噪声会更加明显，严重影响了用户的驾乘体验。In addition, in the scenario of charging new energy vehicles, the above-mentioned serious vibration and noise problems also exist. At present, the charging voltage of new energy vehicles is as high as 800V, but considering that the charging voltage of most charging piles at this stage is 400V, it is necessary to adapt the charging piles with a charging voltage of 400V. Therefore, during the charging process of new energy vehicles, the power switch of the motor controller will be used to boost the voltage, thereby generating a large amount of current ripple in the high-voltage wiring harness. Especially in this scenario, the vehicle is in a stationary state, and the vibration and noise of the whole vehicle caused by the current ripple will be more obvious, seriously affecting the user's driving experience.
虽然，高压线束中可以添加线束屏蔽层，但是，线束屏蔽层通常是用于避免高压线束对整车产生电磁干扰，以提升整车的电磁兼容性的。而线束屏蔽层所屏蔽的部分电磁波都是超高频的电磁波，而造成上述整车的振动噪声，通常不是超高频电磁波造成的，即便在高压线束中添加线束屏蔽层，也无法避免上述整车的振动噪声污染。Although a harness shielding layer can be added to the high-voltage harness, the harness shielding layer is usually used to prevent the high-voltage harness from causing electromagnetic interference to the entire vehicle, so as to improve the electromagnetic compatibility of the entire vehicle. However, some of the electromagnetic waves shielded by the harness shielding layer are ultra-high frequency electromagnetic waves, and the vibration noise of the above-mentioned entire vehicle is usually not caused by ultra-high frequency electromagnetic waves. Even if a harness shielding layer is added to the high-voltage harness, the vibration noise pollution of the above-mentioned entire vehicle cannot be avoided.
另外，在高压线束传输电能的过程中，高压线束还会受到高幅值电流谐波的作用，导致高压线束自身也会产生高频振动，并带动与高压线束接触的其他部件一起振动，进一步增加了整车的振动噪声。In addition, during the process of transmitting electrical energy by the high-voltage wiring harness, the high-voltage wiring harness will also be affected by high-amplitude current harmonics, causing the high-voltage wiring harness itself to generate high-frequency vibrations, and drive other components in contact with the high-voltage wiring harness to vibrate together, further increasing the vibration noise of the entire vehicle.
鉴于此，本申请实施例提出了一种降噪装置，通过抑制电流纹波造成的电磁辐射扩散，并且抑制高压线束自身高频振动造成其他部件产生的振动噪声。应用在新能源汽车中，能够有效减少整车振动噪声，提升用户的驾乘体验。In view of this, the embodiment of the present application proposes a noise reduction device, which suppresses the diffusion of electromagnetic radiation caused by current ripple and suppresses the vibration noise of other components caused by the high-frequency vibration of the high-voltage wire harness itself. When applied in new energy vehicles, it can effectively reduce the vibration noise of the whole vehicle and improve the user's driving experience.
图1示出了本申请实施例提出的一种降噪装置100。FIG. 1 shows a noise reduction device 100 proposed in an embodiment of the present application.
在一些可能的实施例中，本申请实施例提出的一种降噪装置100可以用于装载新能源汽车的高压导线。In some possible embodiments, a noise reduction device 100 proposed in the embodiments of the present application can be used to load high-voltage wires of new energy vehicles.
参考图1所示，上述降噪装置100可以包括壳体110和功能部120，其中，壳体110由电磁屏蔽材料制成，该壳体110的内腔用于收容高压导线，该高压导线用于在车辆中传输电能。上述内腔内壁附着有功能部120，该功能部120用于吸收高压导线自身振动所产生的力。As shown in FIG1 , the noise reduction device 100 may include a housing 110 and a functional part 120, wherein the housing 110 is made of an electromagnetic shielding material, and the inner cavity of the housing 110 is used to accommodate a high-voltage wire, which is used to transmit electrical energy in a vehicle. The inner wall of the inner cavity is attached with the functional part 120, which is used to absorb the force generated by the vibration of the high-voltage wire itself.
在一些可能的实施例中，在上述高压导线为多个时，该多个高压导线可以称为一种高压线束。In some possible embodiments, when there are multiple high-voltage wires, the multiple high-voltage wires can be referred to as a high-voltage wire harness.
在一些可能的实施例中，上述电磁屏蔽材料可以是铁磁材料或者导电材料，基于铁磁材料和导电材料能够使壳体110具有良好的电磁辐射屏蔽性能，尤其是能够引起上述振动噪声的低频电磁辐射。其中铁磁材料可以是硅钢材料、镍基合金、稀土合金等；导电材料可以是铝、铁、铜等。In some possible embodiments, the electromagnetic shielding material may be a ferromagnetic material or a conductive material. Ferromagnetic and conductive materials can enable the housing 110 to have good electromagnetic radiation shielding performance, especially low-frequency electromagnetic radiation that can cause the above-mentioned vibration noise. The ferromagnetic material may be silicon steel, nickel-based alloy, rare earth alloy, etc.; the conductive material may be aluminum, iron, copper, etc.
在一些可能的实施例中，上述壳体100的厚度根据壳体制成材料确定，例如，当上述壳体100由铁磁材料制成时，壳体100的厚度可以为0.5mm；当上述壳体100由导电材料制成时，壳体100的厚度可以为1.5mm。In some possible embodiments, the thickness of the shell 100 is determined according to the material of which the shell is made. For example, when the shell 100 is made of ferromagnetic material, the thickness of the shell 100 may be 0.5 mm; when the shell 100 is made of conductive material, the thickness of the shell 100 may be 1.5 mm.
基于上述技术方案，通过电磁屏蔽材料制成的壳体110收纳高压导线，有效屏蔽高压导线在传输电能过程中产生的电磁辐射，抑制了电磁辐射作用于高压导线之外的部件所产生的振动噪声。另外，通过功能部120来吸收高压导线在传输电能过程中自身振动，从而有效抑制因高压导线带动与高压导线接触的其他部件一起振动，进一步减少了整车的振动噪声。Based on the above technical solution, the housing 110 made of electromagnetic shielding material contains the high-voltage wire, effectively shielding the electromagnetic radiation generated by the high-voltage wire during the transmission of electric energy, and suppressing the vibration noise generated by the electromagnetic radiation acting on components other than the high-voltage wire. In addition, the functional part 120 absorbs the vibration of the high-voltage wire itself during the transmission of electric energy, thereby effectively suppressing the vibration of other components in contact with the high-voltage wire caused by the high-voltage wire, and further reducing the vibration noise of the whole vehicle.
图2示出了本申请实施例提出的又一种降噪装置100。FIG. 2 shows another noise reduction device 100 proposed in an embodiment of the present application.
在一些可能的实施例中，上述壳体110可以根据需要装载的高压导线的数量以及形状进行调整，使壳体110的形状与高压导线的形状一致。In some possible embodiments, the housing 110 may be adjusted according to the number and shape of the high-voltage wires to be loaded, so that the shape of the housing 110 is consistent with the shape of the high-voltage wires.
基于上述技术方案，能够使高压导线在降噪装置中安装得更加牢固，防止降噪装置100因外部原因造成晃动使，导致高压导线在降噪装置100内摆动，发生碰撞，进而发出异响。从而进一步减少整车的噪声污染。 Based on the above technical solution, the high-voltage wire can be installed more firmly in the noise reduction device, preventing the noise reduction device 100 from shaking due to external reasons, causing the high-voltage wire to swing in the noise reduction device 100, collide, and then make abnormal noise, thereby further reducing the noise pollution of the whole vehicle.
图3示出了本申请实施例提出的又一种降噪装置100。FIG. 3 shows another noise reduction device 100 proposed in an embodiment of the present application.
在一些可能的实施例中，上述壳体110包括第一端口和第二端口，其中，第一端口用于引入上述高压导线，第二端口用于引出上述高压导线。In some possible embodiments, the housing 110 includes a first port and a second port, wherein the first port is used to introduce the high-voltage wire, and the second port is used to lead out the high-voltage wire.
在一些可能的实施例中，上述壳体110可以是一体成型的结构，也可以是由至少两部分构成的。在上述壳体110是一体成型的结构时，上述降噪装置100可以和高压导线构成一种高压线束总成，但是这样存在装置安装或者拆卸更换困难的问题。基于此，本申请实施例提出了又一种降噪装置100。In some possible embodiments, the housing 110 may be an integrally formed structure or may be composed of at least two parts. When the housing 110 is an integrally formed structure, the noise reduction device 100 may form a high-voltage wire harness assembly with the high-voltage wire, but this may result in difficulty in installing or disassembling the device. Based on this, another noise reduction device 100 is proposed in an embodiment of the present application.
图4示出了本申请实施例提出的又一种降噪装置100。FIG. 4 shows another noise reduction device 100 proposed in an embodiment of the present application.
参考图4所示，上述降噪装置100的壳体110可以包括可拆卸的第一壳体111和第二壳体112，二者对接则形成了上述壳体110的内腔。As shown in FIG. 4 , the housing 110 of the noise reduction device 100 may include a detachable first housing 111 and a detachable second housing 112 , which are connected to form an inner cavity of the housing 110 .
其中，第一壳体111可以是一种盖板结构，第二壳体112可以是一种凹槽结构，以此保证高压导线能够收纳于壳体110之中。在高压导线安装降噪装置100的过程中，可以先将上述高压导线承载于第二壳体112之中，然后将第一壳体111扣在第二壳体112之上，即可完成对降噪装置100的安装。在降噪装置100从高压导线上拆卸的过程中，直接将上述第一壳体111和第二壳体112分开，即可将高压导线与降噪装置100分开。The first housing 111 may be a cover structure, and the second housing 112 may be a groove structure, so as to ensure that the high-voltage wire can be accommodated in the housing 110. In the process of installing the noise reduction device 100 on the high-voltage wire, the high-voltage wire may be first carried in the second housing 112, and then the first housing 111 may be buckled on the second housing 112 to complete the installation of the noise reduction device 100. In the process of disassembling the noise reduction device 100 from the high-voltage wire, the first housing 111 and the second housing 112 may be directly separated to separate the high-voltage wire from the noise reduction device 100.
基于上述技术方案，通过第一壳体111和第二壳体112分离的壳体设计，方便于上述降噪装置100的安装与拆卸。Based on the above technical solution, the housing design in which the first housing 111 and the second housing 112 are separated facilitates the installation and disassembly of the above noise reduction device 100 .
在一些可能的实施例中，上述第一壳体111内部形状呈现导向槽的形状，以使得上述第一壳体111的内部形状与高压导线的外形相匹配。In some possible embodiments, the inner shape of the first shell 111 is in the shape of a guide groove, so that the inner shape of the first shell 111 matches the outer shape of the high-voltage wire.
因此，在降噪装置100的制造过程中，可以根据高压导线的尺寸以及布置形式调整第一壳体111的形状尺寸。在通常情况下，上述第一壳体111呈现为一种线束导向槽的形状。Therefore, during the manufacturing process of the noise reduction device 100, the shape and size of the first housing 111 can be adjusted according to the size and arrangement of the high-voltage wire. In general, the first housing 111 is in the shape of a wire harness guide groove.
基于上述技术方案，通过第一壳体111能够起到引导和固定高压导线的作用，防止高压导线在降噪装置100中窜动，发生碰撞而产生异响。Based on the above technical solution, the first shell 111 can guide and fix the high-voltage wire, thereby preventing the high-voltage wire from moving in the noise reduction device 100 and colliding to generate abnormal noise.
图5示出了本申请实施例提出的又一种降噪装置100的示意图。其中，图5中的(a)和图5中的(b)示出了一种通过卡扣卡孔配合固定第一壳体和第二壳体的示意图；图5中的(c)示出了一种通过螺孔和螺母固定第一壳体和第二壳体的示意图；图5中的(d)示出了一种通过粘接的方式固定第一壳体和第二壳体的示意图。Fig. 5 shows a schematic diagram of another noise reduction device 100 proposed in an embodiment of the present application. Fig. 5 (a) and Fig. 5 (b) show a schematic diagram of fixing the first shell and the second shell by means of buckle and buckle holes; Fig. 5 (c) shows a schematic diagram of fixing the first shell and the second shell by means of screw holes and nuts; Fig. 5 (d) shows a schematic diagram of fixing the first shell and the second shell by means of bonding.
在一些可能的实施例中，上述降噪装置100还包括第一固定件140，该第一固定件140用于将上述第一壳体111和第二壳体112固定。In some possible embodiments, the noise reduction device 100 further includes a first fixing member 140 , and the first fixing member 140 is used to fix the first shell 111 and the second shell 112 .
在一些可能的实施例中，参考图5中的(a)所示，上述第一固定件140可以包括卡扣141和卡孔142，其中，卡扣141设置于上述第一壳体111，卡孔142设置于上述第二壳体112，卡扣141***卡孔142之后进行卡接固定，以将第一壳体111和第二壳体112固定在一起。In some possible embodiments, referring to (a) in FIG. 5 , the first fixing member 140 may include a buckle 141 and a buckle hole 142, wherein the buckle 141 is disposed on the first shell 111 and the buckle hole 142 is disposed on the second shell 112, and the buckle 141 is inserted into the buckle hole 142 and then is buckled and fixed to fix the first shell 111 and the second shell 112 together.
在一些可能的实施例中，由于壳体110可以是一种线束导向槽的形状，所以上述卡孔142可以是一种卡槽孔。In some possible embodiments, since the housing 110 may be in the shape of a wire harness guide groove, the above-mentioned latch hole 142 may be a latch slot hole.
在一些可能的实施例中，上述第一壳体111和第二壳体112还可以通过其他方式固定在一起，例如，参考图5中的(b)所示，可以将上述卡孔142和卡扣141位置调换，然后将卡扣141***卡孔142之后进行卡接固定，以将第一壳体111和第二壳体112固定在一起；或者，参考图5中的(c)所示，通过螺孔和螺母将上述第一壳体111和第二壳体112进行固定；或者，参考图5中的(d)所示，直接将上述第一壳体111和第二壳体112通过粘接的方式固定在一起，图中的143表示的是粘接点的位置。In some possible embodiments, the first shell 111 and the second shell 112 may be fixed together in other ways. For example, referring to (b) in FIG. 5 , the positions of the latch hole 142 and the buckle 141 may be swapped, and then the buckle 141 may be inserted into the latch hole 142 and then fixed by snapping, so as to fix the first shell 111 and the second shell 112 together; or, referring to (c) in FIG. 5 , the first shell 111 and the second shell 112 may be fixed by screw holes and nuts; or, referring to (d) in FIG. 5 , the first shell 111 and the second shell 112 may be directly fixed together by bonding, and 143 in the figure indicates the position of the bonding point.
基于上述技术方案，能够保证第一壳体111和第二壳体112不会因车辆晃动而分离，形成较为稳定的屏蔽空间，使高压导线稳定收纳于壳体110之中，提升了高压导线的稳定性。Based on the above technical solution, it can be ensured that the first shell 111 and the second shell 112 will not be separated due to the shaking of the vehicle, forming a relatively stable shielding space, so that the high-voltage wire can be stably stored in the shell 110, thereby improving the stability of the high-voltage wire.
在一些可能的实施例中，上述功能部120包括第一功能部121和第二功能部122，其中，该第一功能部121附着在上述第一壳体111的内壁上，该第二功能部122附着在上述第二壳体112的内壁上.In some possible embodiments, the functional portion 120 includes a first functional portion 121 and a second functional portion 122, wherein the first functional portion 121 is attached to the inner wall of the first shell 111, and the second functional portion 122 is attached to the inner wall of the second shell 112.
在一些可能的实施例中，第一功能部121设置于上述第一壳体111与高压导线之间，第二功能部122设置于上述第二壳体112与高压导线之间。In some possible embodiments, the first functional portion 121 is disposed between the first shell 111 and the high-voltage wire, and the second functional portion 122 is disposed between the second shell 112 and the high-voltage wire.
在一些可能的实施例中，上述功能部120可以是由阻尼材料制成的阻尼层。进一步地，上述第一功能部121和第二功能部122也是由阻尼材料制成的阻尼层。再进一步地，上述第一功能部121和第二功能部122可以是一层阻尼垫，也可以是能够起到阻尼作用的一层其他材料。In some possible embodiments, the functional part 120 may be a damping layer made of a damping material. Further, the first functional part 121 and the second functional part 122 may also be a damping layer made of a damping material. Further, the first functional part 121 and the second functional part 122 may be a damping pad or a layer of other materials that can play a damping role.
在一些可能的实施例中，在上述第一功能部121和第二功能部122的阻尼垫时，功能部120具体设置 方式如下：In some possible embodiments, when the damping pads of the first functional part 121 and the second functional part 122 are provided, the functional part 120 is specifically provided with Here is how:
参考图5中的(d)所示，由于高压导线侧壁趋近于和第二壳体112的侧板内壁接触，第一功能部121和第二功能部122可以覆盖第二壳体112的侧板内壁。As shown in FIG. 5( d ), since the side wall of the high-voltage wire is close to contacting the inner wall of the side plate of the second shell 112 , the first functional portion 121 and the second functional portion 122 may cover the inner wall of the side plate of the second shell 112 .
参考图5中的(a)，或者图5中的(b)，或者图5中的(c)所示，由于高压导线侧壁和第二壳体112的侧板内壁之间存在一定的距离，并且导向槽形状的第一壳体111对高压导线起到了固定作用，所以第一功能部121只设置于第一壳体111的下端面，将第二功能部122只设置于第二壳体112的内部底面。Referring to (a) in Figure 5, or (b) in Figure 5, or (c) in Figure 5, since there is a certain distance between the side wall of the high-voltage wire and the inner wall of the side plate of the second shell 112, and the first shell 111 in the shape of a guide groove plays a fixing role on the high-voltage wire, the first functional part 121 is only arranged on the lower end surface of the first shell 111, and the second functional part 122 is only arranged on the inner bottom surface of the second shell 112.
或者，为了减少功能部120的材料消耗，可以在上述高压导线和上述壳体110接触的位置设置功能部120。以此减少降噪装置100的制造成本。Alternatively, in order to reduce the material consumption of the functional part 120 , the functional part 120 may be disposed at the position where the high-voltage wire contacts the housing 110 , thereby reducing the manufacturing cost of the noise reduction device 100 .
基于上述技术方案，通过合理设置功能部120的位置，有效吸收高压导线在传输电能过程中自身振动，能够有效抑制因高压导线带动与高压导线接触的其他部件一起振动，进一步减少了整车的振动噪声。Based on the above technical solution, by reasonably setting the position of the functional part 120, the vibration of the high-voltage wire itself during the transmission of electric energy can be effectively absorbed, and the vibration of other components in contact with the high-voltage wire caused by the high-voltage wire can be effectively suppressed, thereby further reducing the vibration noise of the entire vehicle.
在一些可能的实施例中，当上述高压导线装载在上述壳体110内，上述功能部120发生形变。或者，上述功能部120和上述高压导线之间紧密接触。In some possible embodiments, when the high-voltage wire is loaded in the housing 110, the functional portion 120 is deformed. Alternatively, the functional portion 120 and the high-voltage wire are in close contact.
图6示出了本申请实施例提出的一种降噪装置100各部件的尺寸关系示意图。FIG. 6 is a schematic diagram showing the dimensional relationship of various components of a noise reduction device 100 proposed in an embodiment of the present application.
参考图6所示，降噪装置100各部件的高度关系可以是：。Referring to FIG. 6 , the height relationship of the components of the noise reduction device 100 may be: .
其中，H为在上述壳体110的内高，h1为上述第一功能部121的纵截面高度，h2为上述第二功能部122的纵截面高度，h3为上述高压导线的纵截面高度。Wherein, H is the inner height of the housing 110 , h1 is the longitudinal section height of the first functional portion 121 , h2 is the longitudinal section height of the second functional portion 122 , and h3 is the longitudinal section height of the high-voltage wire.
参考图6所示，降噪装置100各部件的宽度关系可以是：。Referring to FIG. 6 , the width relationship of the components of the noise reduction device 100 may be:.
其中，W为上述壳体110的内宽，w1为上述第二功能部122在壳体110内腔左侧壁的横截面宽度，w2为上述第二功能部122在壳体110内腔右侧壁的横截面宽度，w3为上述高压导线的横截面宽度，w4为高压导线之间的空隙，N为降噪装置100装载的高压导线的根数。Among them, W is the inner width of the above-mentioned shell 110, w1 is the cross-sectional width of the above-mentioned second functional part 122 on the left side wall of the inner cavity of the shell 110, w2 is the cross-sectional width of the above-mentioned second functional part 122 on the right side wall of the inner cavity of the shell 110, w3 is the cross-sectional width of the above-mentioned high-voltage wire, w4 is the gap between the high-voltage wires, and N is the number of high-voltage wires loaded on the noise reduction device 100.
在一些可能的实施例中，参考图5中的(a)所示，高压导线的侧壁和第二壳体112的侧板内壁之间存在一定的距离，所以此时降噪装置100各部件的宽度关系可以是：。可见，该结构形式的降噪装置100，若要保证上述功能部120和上述高压导线之间紧密接触，则只需要保证降噪装置100各部件的高度关系满足上述即可。In some possible embodiments, as shown in (a) of FIG. 5 , there is a certain distance between the side wall of the high-voltage wire and the inner wall of the side plate of the second housing 112, so the width relationship of the various components of the noise reduction device 100 can be: . It can be seen that, for the noise reduction device 100 of this structural form, if the functional part 120 and the high-voltage wire are to be in close contact, it is only necessary to ensure that the height relationship of the various components of the noise reduction device 100 meets the above.
基于上述技术方案，能够使功能部120充分与高压导线接触，进而充分吸收高压导线自身的振动力，进而抑制高压导线带动与高压导线接触的其他部件一起振动，进一步减少了整车的振动噪声，也进一步固定了高压导线，避免其在上述内腔中晃动碰撞，造成异响。Based on the above technical solution, the functional part 120 can be fully in contact with the high-voltage wire, and then fully absorb the vibration force of the high-voltage wire itself, thereby suppressing the high-voltage wire from driving other components in contact with the high-voltage wire to vibrate, further reducing the vibration noise of the entire vehicle, and further fixing the high-voltage wire to prevent it from shaking and colliding in the above-mentioned inner cavity and causing abnormal noise.
图7示出了本申请实施例提出的又一种降噪装置100的示意图。FIG. 7 shows a schematic diagram of another noise reduction device 100 proposed in an embodiment of the present application.
在一些可能的实施例中，在上述降噪装置100应用于车辆中时，上述第二壳体112还包括支撑架150和第二固定件160，其中支撑架150设置于上述第二壳体112的外部底面，第二固定件160用于将上述支撑架150与车辆的车身部件170固定。In some possible embodiments, when the noise reduction device 100 is applied to a vehicle, the second shell 112 further includes a support frame 150 and a second fixing member 160, wherein the support frame 150 is disposed on the outer bottom surface of the second shell 112, and the second fixing member 160 is used to fix the support frame 150 to a body component 170 of the vehicle.
在一些可能的实施例中，上述支撑架150可以设置开孔，用于通过扎带或者螺栓的形式与车身部件170进行固定。In some possible embodiments, the support frame 150 may be provided with openings for fixing to the vehicle body component 170 by means of cable ties or bolts.
在一些可能的实施例中，上述车身部件170可以是车门钣金、车身底盘等。In some possible embodiments, the vehicle body component 170 may be a door sheet metal, a vehicle body chassis, etc.
基于上述技术方案，能够进一步提升降噪装置100的稳定性，避免降噪装置100在车辆晃动的过程中，发生窜动，与其他车内部件碰撞发出碰撞噪声。从而进一步减少了整车的噪声污染。Based on the above technical solution, the stability of the noise reduction device 100 can be further improved, and the noise reduction device 100 can be prevented from moving during the shaking of the vehicle and colliding with other vehicle interior components to produce collision noise, thereby further reducing the noise pollution of the entire vehicle.
在一些可能的实施例中，若部分高压导线与其他车身部件之间距离较远，则该部分高压导线传输电能的过程中对其他车身部件的电磁干扰有限，难以通过形成的电动力造成其他车身部件的振动。所以，可以只为距离车身部件较近的高压导线加装上述降噪装置100。In some possible embodiments, if some high-voltage wires are far away from other vehicle body parts, the electromagnetic interference of these high-voltage wires to other vehicle body parts during the transmission of electrical energy is limited, and it is difficult to cause vibration of other vehicle body parts through the generated electric force. Therefore, the noise reduction device 100 can be installed only for the high-voltage wires that are close to the vehicle body parts.
在一些可能的实施例中，降噪装置100中可以包括多个支撑架150和第二固定件160，以进一步增加降噪装置100安装在车辆中的稳定性。In some possible embodiments, the noise reduction device 100 may include a plurality of support frames 150 and second fixing members 160 to further increase the stability of the noise reduction device 100 when installed in a vehicle.
图8示出了本申请实施例提出的一种降噪装置100的加装示意图。FIG8 shows a schematic diagram of the installation of a noise reduction device 100 proposed in an embodiment of the present application.
以较薄的车身底板180为例，车身底板180之下为装载着电池包的底盘总成171，在车身底板180和底盘总成171之间存在高压导线，为驱动电机190输送电能。在该场景下，可以只为和车身底板180相距第一距离L的高压导线加装上述降噪装置100，该第一距离L可以是预先通过实验确定的，例如10cm。在高压导线和车身底板180间距大于第一距离L时，高压导线传输电能的过程中产生的电动力不会对车身底板180造成振动影响。Taking the thinner vehicle floor 180 as an example, under the vehicle floor 180 is the chassis assembly 171 loaded with a battery pack, and there is a high-voltage wire between the vehicle floor 180 and the chassis assembly 171 to transmit electric energy to the drive motor 190. In this scenario, the above-mentioned noise reduction device 100 can be installed only for the high-voltage wire that is a first distance L from the vehicle floor 180. The first distance L can be determined in advance through experiments, such as 10 cm. When the distance between the high-voltage wire and the vehicle floor 180 is greater than the first distance L, the electric force generated during the transmission of electric energy by the high-voltage wire will not cause vibration to the vehicle floor 180.
基于上述技术方案，只针对会对其他车身部件造成振动影响的部分高压导线加装上述降噪设备，在 降低整车的振动噪声污染的同时，还控制了整车制造的成本。Based on the above technical solution, the above noise reduction equipment is only installed on some high-voltage wires that may cause vibration to other vehicle body parts. While reducing the vibration and noise pollution of the entire vehicle, the cost of vehicle manufacturing is also controlled.
本申请实施例还提供了一种高压线束总成，包括高压导线和上述实施例提供的任一种降噪装置100，其中，降噪装置100装载着高压导线。The embodiment of the present application further provides a high-voltage wire harness assembly, including a high-voltage wire and any one of the noise reduction devices 100 provided in the above embodiments, wherein the noise reduction device 100 is loaded with the high-voltage wire.
本申请实施例还提供了一种车辆，包括上述实施例提供的任一种降噪装置100，或者，包括上述高压线束总成。An embodiment of the present application further provides a vehicle, comprising any one of the noise reduction devices 100 provided in the above embodiments, or comprising the above high-voltage wire harness assembly.
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。 The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims (12)

  1. 一种降噪装置，其特征在于，包括：A noise reduction device, characterized by comprising:
    壳体(110)和功能部(120)；A housing (110) and a functional part (120);
    所述壳体(110)由电磁屏蔽材料制成，所述壳体(110)的内腔用于收容高压导线，所述高压导线用于在车辆中传输电能；所述内腔内壁附着有所述功能部(120)，所述功能部(120)用于吸收所述高压导线自身振动所产生的力。The shell (110) is made of electromagnetic shielding material, and the inner cavity of the shell (110) is used to accommodate a high-voltage wire, and the high-voltage wire is used to transmit electric energy in the vehicle; the functional part (120) is attached to the inner wall of the inner cavity, and the functional part (120) is used to absorb the force generated by the vibration of the high-voltage wire itself.
  2. 根据权利要求1所述的降噪装置，其特征在于，所述壳体(110)包括可拆卸的第一壳体(111)和第二壳体(112)，以使得所述第一壳体(111)和所述第二壳体(112)共同形成所述内腔。The noise reduction device according to claim 1, characterized in that the shell (110) comprises a detachable first shell (111) and a second shell (112), so that the first shell (111) and the second shell (112) together form the inner cavity.
  3. 根据权利要求2所述的降噪装置，其特征在于，所述装置还包括：The noise reduction device according to claim 2, characterized in that the device further comprises:
    第一固定件(140)，所述第一固定件(140)用于将所述第一壳体(111)与所述第二壳体(112)固定。A first fixing member (140), wherein the first fixing member (140) is used to fix the first shell (111) and the second shell (112).
  4. 根据权利要求3所述的降噪装置，其特征在于，所述第一固定件(140)包括卡扣(141)和卡孔(142)，所述卡扣(141)设置于所述第一壳体(111)，所述卡孔(142)设置于所述第二壳体(112)。The noise reduction device according to claim 3 is characterized in that the first fixing member (140) comprises a buckle (141) and a buckle hole (142), the buckle (141) is arranged on the first shell (111), and the buckle hole (142) is arranged on the second shell (112).
  5. 根据权利要求2至4中任一项所述的降噪装置，其特征在于，所述第二壳体(112)还包括支撑架(150)和第二固定件(160)，所述支撑架(150)设置于所述第二壳体(112)的下表面，所述第二固定件(160)用于将所述支撑架(150)固定于所述车辆的车身内部。The noise reduction device according to any one of claims 2 to 4 is characterized in that the second shell (112) also includes a support frame (150) and a second fixing member (160), the support frame (150) is arranged on the lower surface of the second shell (112), and the second fixing member (160) is used to fix the support frame (150) to the inside of the vehicle body.
  6. 根据权利要求1至5中任一项所述的降噪装置，其特征在于，所述电磁屏蔽材料包括铁磁材料或导电材料。The noise reduction device according to any one of claims 1 to 5, characterized in that the electromagnetic shielding material comprises a ferromagnetic material or a conductive material.
  7. 根据权利要求1至6中任一项所述的降噪装置，其特征在于，所述内腔的形状与所述高压导线相匹配。The noise reduction device according to any one of claims 1 to 6, characterized in that the shape of the inner cavity matches the high-voltage wire.
  8. 根据权利要求2至7中任一项所述的降噪装置，其特征在于，所述功能部(120)包括第一功能部(121)和第二功能部(122)，所述第一功能部(121)附着在所述第一壳体(111)的内壁上，所述第二功能部(122)附着在所述第二壳体(112)的内壁上。The noise reduction device according to any one of claims 2 to 7 is characterized in that the functional part (120) includes a first functional part (121) and a second functional part (122), the first functional part (121) is attached to the inner wall of the first shell (111), and the second functional part (122) is attached to the inner wall of the second shell (112).
  9. 根据权利要求1至8中任一项所述的降噪装置，其特征在于，所述功能部(120)是由阻尼材料制成的阻尼层。The noise reduction device according to any one of claims 1 to 8, characterized in that the functional part (120) is a damping layer made of a damping material.
  10. 根据权利要求1至9中任一项所述的降噪装置，其特征在于，当高压导线装载在所述壳体(110)内，所述功能部(120)发生形变。The noise reduction device according to any one of claims 1 to 9, characterized in that when the high-voltage wire is loaded in the housing (110), the functional part (120) is deformed.
  11. 一种高压线束总成，其特征在于，包括高压导线和如权利要求1至10中任一项所述的降噪装置，其中，所述降噪装置装载着所述高压导线。A high-voltage wire harness assembly, characterized by comprising a high-voltage wire and a noise reduction device as claimed in any one of claims 1 to 10, wherein the noise reduction device is loaded with the high-voltage wire.
  12. 一种车辆，其特征在于，包括如权利要求1至10中任一项所述的降噪装置，或者，包括如权利要求11所述的高压线束总成。 A vehicle, characterized by comprising the noise reduction device according to any one of claims 1 to 10, or comprising the high-voltage wire harness assembly according to claim 11.
PCT/CN2023/136350 2022-12-08 2023-12-05 Noise reduction apparatus, high-voltage wiring harness assembly and vehicle WO2024120368A1 (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013219862A (en) * 2012-04-05 2013-10-24 Toyota Motor Corp Electric vehicle
CN206374542U (en) * 2016-12-26 2017-08-04 比亚迪股份有限公司 A kind of electric automobile
CN208752981U (en) * 2018-07-26 2019-04-16 安徽特种电缆集团有限公司 High voltage cable in a kind of anti-interference type new-energy automobile
CN208881730U (en) * 2018-08-28 2019-05-21 江苏隆丰电子有限公司 A kind of protective device of automotive wire bundle
CN210033971U (en) * 2019-06-05 2020-02-07 长城汽车股份有限公司 Air compressor machine and fuel cell car of integrated silencer
CN112557711A (en) * 2020-12-29 2021-03-26 中国汽车技术研究中心有限公司 Electromagnetic compatibility test bench and test method for high-voltage system assembly of electric passenger vehicle
CN115199510A (en) * 2022-07-28 2022-10-18 摩登汽车有限公司 Noise control method for electric compressor of new energy automobile

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013219862A (en) * 2012-04-05 2013-10-24 Toyota Motor Corp Electric vehicle
CN206374542U (en) * 2016-12-26 2017-08-04 比亚迪股份有限公司 A kind of electric automobile
CN208752981U (en) * 2018-07-26 2019-04-16 安徽特种电缆集团有限公司 High voltage cable in a kind of anti-interference type new-energy automobile
CN208881730U (en) * 2018-08-28 2019-05-21 江苏隆丰电子有限公司 A kind of protective device of automotive wire bundle
CN210033971U (en) * 2019-06-05 2020-02-07 长城汽车股份有限公司 Air compressor machine and fuel cell car of integrated silencer
CN112557711A (en) * 2020-12-29 2021-03-26 中国汽车技术研究中心有限公司 Electromagnetic compatibility test bench and test method for high-voltage system assembly of electric passenger vehicle
CN115199510A (en) * 2022-07-28 2022-10-18 摩登汽车有限公司 Noise control method for electric compressor of new energy automobile

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