Fluid delivery device and vehicle thermal management system
Patent Information
- Application Number
- EP2023709329
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2022-03-01
- Filing Date
- 2023-02-28
- Publication Date
- 2025-01-08
AI Technical Summary
Existing fluid conveying devices in vehicle heat management systems generate significant noise emissions, which are not effectively mitigated by current soundproofing technologies.
A fluid conveying device with a soundproofing unit comprising a liquid chamber separate from the fluid, where the fluid delivery unit is either partially or completely enclosed within the liquid chamber, and additional soundproofing measures such as internal and external sound insulation, and a gas-filled inner chamber are used to absorb, reflect, and deflect noise emissions.
This design achieves substantial noise emission attenuation, with noise levels reduced by more than 5 dB(A), providing a compact and low-noise vehicle heat management system.
Smart Images
Figure 1.1
Abstract
Description
[0001] Description
[0002] State of the art
[0003] A fluid conveying device, in particular for a vehicle thermal management system, having at least one fluid conveying unit for conveying a fluid and having at least one soundproofing unit for reducing noise emission from the fluid conveying unit has already been proposed.
[0004] Disclosure of the invention
[0005] The invention is based on a fluid conveying device, in particular for a vehicle thermal management system, with at least one fluid conveying unit for conveying a fluid and with at least one soundproofing unit for reducing noise emissions from the fluid conveying unit.
[0006] It is proposed that the soundproofing unit comprise at least one liquid chamber for receiving a liquid separate from the fluid. The fluid delivery unit is preferably designed as a compressor, in particular as an electrically operated compressor, alternatively as a pump or as a fan. The fluid delivery unit preferably comprises a hydraulic and / or pneumatic unit for applying pressure to the fluid. The fluid delivery unit preferably comprises a motor, in particular an electric motor, for driving the hydraulic and / or pneumatic unit. The fluid delivery unit preferably comprises an electronic unit for controlling or regulating the motor. The fluid is, for example, a refrigerant, a coolant, water, air, a fuel, a propellant, or the like.Particularly preferably, the fluid delivery unit is provided for circulating the fluid in a closed fluid circuit, in particular in a refrigerant circuit. The soundproofing unit, in particular the liquid chamber, is provided to reduce a portion of the noise emission from the fluid delivery unit that reaches a designated soundproofing area. Reducing the noise emission can be achieved by absorption, reflection, and / or deflection of the noise emission from the soundproofing area. The soundproofing unit is preferably arranged between the soundproofing area and the fluid delivery unit. In particular, the soundproofing unit blocks a direct airborne transmission path for the noise emission from the fluid delivery unit into the soundproofing area.The soundproofing area can be a closed area, for example a room of a building, a room of a temporary structure, a passenger and / or driver's cabin of a vehicle, or an open area, in particular part of or the entire surroundings of the fluid conveying device.
[0007] The liquid chamber is preferably arranged between the fluid delivery unit and the soundproofing area, in particular for at least partial absorption of the noise emission by the liquid in the liquid chamber. The liquid is preferably a coolant, in particular water, preferably a water-glycol mixture, alternatively ethanol, an oil or the like. The liquid chamber is preferably larger than the fluid delivery unit. As viewed from the soundproofing area, the liquid chamber preferably conceals the fluid delivery unit at least substantially completely, in particular by more than 50%, preferably by more than 75%, particularly preferably by more than 95%. The liquid chamber, in particular a receiving volume of the liquid chamber, preferably comprises a maximum longitudinal extent that is greater than a maximum longitudinal extent of the fluid delivery unit parallel thereto.Preferably, the liquid chamber, in particular the liquid chamber's receiving volume for the liquid, comprises a maximum transverse extent perpendicular to its maximum longitudinal extent, which is greater than a maximum transverse extent of the fluid delivery unit parallel thereto. The receiving volume of the liquid chamber for receiving the liquid can be larger, smaller, or equal to the total volume of the fluid delivery unit.
[0008] The term "separate" for the fluid and the liquid means that the receiving volume of the fluid chamber for the fluid, at least within the fluid delivery device, is fluidically separated from the hydraulic and / or pneumatic unit of the fluid delivery unit for the fluid. It is conceivable that, in a specific application, the fluid chamber outside the fluid delivery device is fluidically connected to the hydraulic and / or pneumatic unit. In particular, the fluid and the liquid can be composed of the same or different materials.
[0009] The inventive design allows for advantageously high attenuation of noise emissions from the fluid conveying unit. In particular, airborne noise emissions can be advantageously kept low.
[0010] It is further proposed that the fluid delivery unit is arranged at least substantially entirely within the liquid chamber. Preferably, the liquid chamber, in particular the receiving volume, comprises a further maximum transverse extent which is perpendicular to its maximum longitudinal extent and its maximum transverse extent and which is greater than a further maximum transverse extent of the fluid delivery unit which is parallel thereto. The liquid chamber preferably comprises a receiving region for receiving the fluid delivery unit. The receiving region can be designed identically to the receiving volume, so that an outer wall of a housing of the fluid delivery unit is in direct contact with the liquid, or can be designed separately from the receiving volume, so that the fluid delivery unit is spaced from the liquid in the receiving volume.Preferably, the fluid delivery unit is completely surrounded by the receiving volume, in particular the liquid, in at least one plane, in particular in at least two mutually perpendicular planes, preferably in at least three mutually perpendicular planes. Preferably, the fluid delivery unit is at least substantially completely surrounded by the receiving volume, in particular by the liquid. In this context, “substantially completely” is understood to mean, apart from feedthroughs through the receiving volume for an electrical connection, a fluid-technical connection and / or for holding the fluid delivery unit. Alternatively, the fluid delivery unit protrudes from the liquid chamber on at least one side of the liquid chamber and / or is arranged flush with the liquid chamber on a common mounting plate.Alternatively, the fluid delivery unit is arranged outside the fluid chamber, in particular on a side of the fluid chamber facing away from the soundproofing area. The inventive design advantageously further reduces the noise emission of the fluid delivery unit. In particular, many paths, including indirect paths into which the noise emission is reflected at least once, of the noise emission from the fluid delivery unit to the soundproofing area can be advantageously blocked. In particular, a reduction of more than 5 dB(A) can be achieved.
[0011] It is further proposed that the soundproofing unit comprise an inner chamber, in particular a gas-filled inner chamber, which is arranged within the liquid chamber, wherein the fluid delivery unit is arranged in the inner chamber. The inner chamber preferably surrounds the receiving area of the liquid chamber. The inner chamber is preferably sealed with respect to the liquid. The liquid chamber preferably has an outer housing. The receiving volume of the liquid chamber for the liquid is preferably delimited by an inner wall of the outer housing and an outer wall of the inner chamber. Within the inner chamber, the fluid delivery unit is preferably surrounded by a gas. In an advantageously simple embodiment, the gas is ambient air. Alternatively, the gas is a coolant and / or a low-oxygen gas, in particular an inert gas, for example nitrogen.The inner chamber can be completely closed off with respect to the gas or can comprise a ventilation channel through the receiving volume in order to exchange the gas in the inner chamber during operation of the fluid conveying device, in particular to dissipate heat from the fluid conveying device. The inner chamber is preferably arranged at a distance in all directions from the outer housing of the liquid chamber. Alternatively, the inner chamber is arranged on at least one wall of the outer housing or is formed integrally with at least one wall of the outer housing. The design according to the invention makes it possible to achieve advantageously strong attenuation of the noise emission. In particular, a path of the noise emission advantageously leads through many different materials and an advantageously high acoustic impedance can be achieved.
[0012] It is further proposed that the liquid chamber be designed as an expansion vessel for the liquid. The liquid chamber preferably has at least one liquid connection for connecting to an external liquid circuit, in particular a coolant circuit. The liquid chamber is provided in particular to absorb an excess of liquid from the liquid circuit and in particular to compensate for a liquid deficit in the liquid circuit. Alternatively or additionally, the liquid chamber is designed as a gas separator in order to separate a gas contained in the liquid from the liquid. Due to the design according to the invention, the liquid chamber can advantageously be used for a purpose other than soundproofing. In particular, when the fluid conveying device is used in a liquid circuit, a separate expansion vessel can be dispensed with.In particular, a fluid conveying device can be provided which allows an advantageously compact construction of a fluid circuit.
[0013] It is further proposed that the soundproofing unit comprise an internal sound insulation arranged between the liquid chamber and the fluid delivery unit. The internal sound insulation is preferably made of a sound-absorbing material and / or a sound-reflecting material. The sound-absorbing material is preferably specifically designed to absorb sound. The sound-reflecting material is preferably specifically designed to reflect sound. For example, the internal sound insulation is made of an acoustic foam, a soft material, a fiber material, or a porous material. The internal sound insulation is preferably arranged on an outer wall of the housing of the fluid delivery unit.Alternatively, the inner chamber is lined and / or covered with the inner sound insulation or additional sound insulation. The inner sound insulation comprises, for example, at least one sound-damping mat and / or one sound-damping plate and / or is designed as a filler. The inventive design allows for advantageously strong attenuation of noise emissions. In particular, a path for the noise emission advantageously passes through many different materials, and an advantageously high acoustic impedance can be achieved.
[0014] It is further proposed that the soundproofing unit comprise an outer sound insulation which at least substantially completely surrounds the liquid chamber. The outer sound insulation is preferably made of a sound-absorbing material and / or a sound-reflecting material. The outer sound insulation can be made of the same material as or a different material than the inner sound insulation. For example, the outer sound insulation is made of an acoustic foam, a soft material, a fiber material, or a porous material. The outer sound insulation is preferably arranged on an outer wall of the outer housing of the liquid chamber. In particular, when the fluid delivery unit is arranged within the liquid chamber, the outer sound insulation encloses the liquid chamber.Preferably, more than 50%, more preferably more than 75%, in particular more than 90% of an entire outer surface of the outer housing of the liquid chamber is covered by the outer sound insulation. In particular, in an embodiment in which the fluid delivery unit is arranged at least partially outside the liquid chamber, the outer sound insulation preferably encloses at least the part of the fluid delivery unit arranged outside the liquid chamber, and optionally additionally the liquid chamber. Alternatively, the liquid chamber and the outer sound insulation complement each other when enclosing the fluid delivery unit. The outer sound insulation comprises, for example, at least one sound-damping mat and / or one sound-damping plate. The embodiment according to the invention can advantageously achieve strong attenuation of noise emissions.In particular, a path for noise emission advantageously passes through many different materials, and an advantageously high acoustic impedance can be achieved. It is further proposed that at least one electronic unit, in particular the one already mentioned, of the fluid delivery unit is arranged in physical contact with the liquid chamber for cooling the electronic unit. The electronic unit is preferably arranged on a wall of the inner chamber. Alternatively, the electronic unit reaches through a wall of the inner chamber into the receiving volume for direct contact with the liquid. Alternatively, the entire fluid delivery unit is arranged within the receiving volume, in particular without an inner chamber. The electronic unit preferably comprises power electronics for supplying electrical power to the motor. The electronic unit particularly comprises control electronics for controlling the motor.The electronics unit preferably comprises a heat sink for cooling in particular the power electronics and optionally the control electronics. In particular, the heat sink is in direct contact with the wall of the inner chamber and / or the liquid. Alternatively, the wall of the inner chamber forms the heat sink. The fluid conveying device preferably comprises at least one electrical connection which is connected to the electronics unit. The electrical connection is provided in particular for signal and / or energy transmission to and / or from the electronics unit. The electrical connection is preferably arranged in a feedthrough through the receiving volume. Due to the design according to the invention, the electronics unit can advantageously be operated reliably. In particular, air-based cooling of the electronics unit can be dispensed with.Alternatively, an advantageously stable, in particular advantageously low, operating temperature of the electronics unit can be achieved by supplementing an air-based cooling of the electronics unit.
[0015] It is further proposed that at least one hydraulic and / or pneumatic unit of the fluid delivery unit is arranged in physical contact with the liquid chamber for cooling the hydraulic and / or pneumatic unit. The hydraulic and / or pneumatic unit is preferably arranged on a wall of the inner chamber. Alternatively, the hydraulic and / or pneumatic unit reaches through a wall of the inner chamber into the receiving volume for direct contact with the liquid. Alternatively, the entire fluid delivery unit is arranged within the receiving volume, in particular without an inner chamber. The fluid delivery device preferably comprises at least one fluid connection for feeding the fluid into the hydraulic and / or pneumatic unit or for discharging the fluid from the hydraulic and / or pneumatic unit. The at least one fluid connection is arranged in particular in a passage through the receiving volume.The design according to the invention advantageously allows heat recovery to be implemented by transferring waste heat from the hydraulic unit to the fluid.
[0016] Furthermore, it is proposed that the soundproofing unit comprises an inner chamber, in particular the one already mentioned, which is arranged within the liquid chamber, and at least one pump for conveying the liquid, wherein the pump is arranged in the inner chamber. Alternatively, the pump is arranged outside the liquid chamber. The pump is preferably provided to circulate the liquid in the liquid circuit. Preferably, the pump comprises liquid connections for feeding the liquid into or out of the pump. The liquid connections preferably protrude through the receiving volume. In particular, the liquid connections within the liquid chamber are designed to be fluidically separated from the receiving volume. Alternatively, the pump within the liquid chamber is fluidically connected to the receiving volume.Additionally or alternatively, the fluid conveying device comprises at least one fluid valve of the fluid circuit, which is arranged in the inner chamber. The fluid valve is preferably designed to adjust the flow of fluid stepwise or continuously. The design according to the invention advantageously allows for significantly reduced noise emissions from the pump. In particular, many active sound sources of a fluid circuit and / or a fluid circuit can advantageously be preassembled in a single assembly.
[0017] Furthermore, it is proposed that the fluid conveying device comprises a fluid receiving unit, wherein the soundproofing unit comprises an inner chamber, in particular the one already mentioned, which is arranged within the liquid chamber and wherein the fluid receiving unit is arranged in the inner chamber. The fluid receiving unit is preferably designed as a buffer storage device, in particular as an accumulator. The fluid receiving unit is preferably provided for receiving the fluid or a further refrigerant. The fluid receiving unit can in particular be provided for integration into the external fluid circuit or an external further refrigerant circuit. The fluid receiving unit and the fluid conveying unit can be integrated into one another, arranged next to one another, or arranged at a distance from one another in the inner chamber.Preferably, the fluid receiving unit and the fluid delivery unit are fluidly connected to one another within the inner chamber. Alternatively, the fluid delivery device comprises separate fluid connections for the fluid receiving unit and the fluid delivery unit for independent integration of the fluid receiving unit and the fluid delivery unit into the external fluid circuit. The inventive design advantageously allows the fluid receiving unit and the fluid delivery unit to be provided as a single, compact, and low-noise assembly.
[0018] It is further proposed that the soundproofing unit comprise at least one wave damping element to dampen movement of the liquid within the liquid chamber. The wave damping element is designed, for example, as a partially permeable partition wall arranged within the receiving volume. The partition wall preferably divides the receiving volume into at least two sub-regions and increases a flow resistance between the sub-regions relative to a flow resistance within the sub-regions. The partition wall is designed, for example, as a perforated plate. Alternatively, the wave damping element or an additional wave damping element is designed as a flexible holding element for fastening the fluid delivery unit. The fluid delivery device comprises, in particular, a holder to which the fluid delivery unit is fastened.The holder comprises in particular a base which is intended for fastening to an installation location of the fluid conveying device, for example on a vehicle body or on a building wall. The holder preferably comprises at least one spacer which is arranged on the base. The fluid conveying unit is preferably fastened to the at least one spacer. The spacer preferably extends through the receiving volume. The spacer is preferably designed as a noise encapsulation device in order to reduce noise transmission from the fluid conveying unit to the base via the spacer. The flexible holding element is arranged in particular between the spacer and the liquid chamber. In particular, the flexible holding element encompasses the spacer in a plane perpendicular to a maximum longitudinal extent of the spacer.The flexible retaining element is preferably made of an elastic material to dampen the transmission of vibration from the spacer to the liquid. The inventive design advantageously allows for a significant reduction in mechanical stress and / or vibrations on the fluid conveying device caused by liquid movement. Furthermore, additional noise due to liquid movement within the liquid chamber can be advantageously kept to a minimum.
[0019] It is further proposed that the fluid delivery unit be fastened to the liquid chamber. Preferably, the liquid chamber is fastened to the holder, in particular to the at least one spacer. The fluid delivery unit is preferably fastened to the inner chamber, in particular by means of at least one further spacer of the inner chamber arranged at a distance from the spacer and / or by means of a sound-damping material. Preferably, the fluid delivery unit is inserted, in particular pressed, into the inner chamber lined with the sound-damping material. Alternatively, the fluid delivery unit is screwed, glued, and / or snapped onto the inner chamber. The design according to the invention advantageously prevents direct transmission of noise emissions from the fluid delivery unit to the holder, in particular the base of the holder.In particular, the transmission of noise emissions from the fluid conveying unit to the holder can advantageously be kept low.
[0020] It is further proposed that the fluid conveying device comprises a fluid receiving unit, in particular the one already mentioned, with at least one receiving housing for receiving a coolant, in particular the fluid or a coolant different from the fluid, wherein the fluid conveying unit is arranged within the receiving housing. The receiving housing is made of aluminum, for example. In at least one embodiment, the receiving housing forms the inner chamber, wherein the receiving housing is filled with the coolant, in particular instead of a gas. An outer wall of the fluid conveying unit is in particular in direct contact with the coolant. Due to the embodiment according to the invention, the fluid conveying device, in particular a fluidic or electrical connection between the fluid conveying unit and the fluid receiving unit, can advantageously be designed with few components.
[0021] It is further proposed that the liquid chamber forms a receiving recess or a receiving channel in which the fluid delivery unit is at least partially arranged. The liquid chamber is preferably designed as a double-walled housing, wherein the receiving volume is formed by an intermediate region between two walls forming the double-walled housing. A cross-section of the liquid chamber is, for example, U-shaped or annular. In particular, the liquid chamber is hood-shaped and / or tubular. The fluid delivery unit can be set back from the outer wall, flush with the outer wall, or projecting beyond the outer wall relative to an outer wall of the liquid chamber having the receiving channel or the receiving recess.Optionally, the receiving recess or the receiving channel with the fluid conveying unit arranged therein is closed with the external insulation, with a mounting plate and / or a cover, in particular a sound-absorbing cover.
[0022] Furthermore, a vehicle thermal management system is proposed with at least one fluid conveying device according to the invention, with a refrigerant circuit in which the fluid conveying unit is integrated, and with at least one coolant circuit, in particular the one already mentioned, in which the liquid chamber is integrated. The vehicle thermal management system is intended in particular for a vehicle with an electric or hybrid drive. The refrigerant circuit is provided, for example, for controlling the temperature of a drive battery of the vehicle and / or the soundproofing area. The refrigerant circuit is designed, for example, as a compression heat pump and / or compression refrigeration machine. The fluid conveying unit is designed, in particular, as a compressor of the compression heat pump and / or compression refrigeration machine. The fluid conveying unit is preferably provided for circulating the fluid in the refrigerant circuit.The coolant circuit and the refrigerant circuit preferably comprise at least one heat exchanger for transferring heat from the refrigerant circuit to the coolant circuit or vice versa. In an advantageously compact embodiment, the liquid chamber is designed as this heat exchanger. The coolant circuit preferably comprises at least one air heat exchanger for transferring heat from the coolant to the ambient air or vice versa. The embodiment according to the invention makes it possible to provide an advantageously low-noise and compact vehicle thermal management system.
[0023] The fluid delivery device according to the invention and / or the vehicle thermal management system according to the invention should not be limited to the application and embodiment described above. In particular, the fluid delivery device according to the invention and / or the vehicle thermal management system according to the invention can have a number of individual elements, components, and units that differs from the number stated herein to fulfill a functionality described herein. Furthermore, in the value ranges specified in this disclosure, values within the stated limits are also to be considered disclosed and can be used arbitrarily.
[0024] Drawings
[0025] Further advantages will become apparent from the following description of the drawings. The drawings illustrate 14 exemplary embodiments of the invention. The drawings, the description, and the claims contain numerous features in combination. Those skilled in the art will also expediently consider the features individually and combine them into useful further combinations.
[0026] Shown are: Fig. 1 a schematic representation of a fluid conveying device according to the invention with a fluid conveying unit arranged inside a liquid chamber,
[0027] Fig. 2 is a schematic representation of a further embodiment of a fluid conveying device according to the invention with a fluid conveying unit arranged within a liquid,
[0028] Fig. 3 is a schematic representation of an alternative embodiment of a fluid conveying device according to the invention with an internal sound insulation,
[0029] Fig. 4 is a schematic representation of an alternative embodiment of a fluid conveying device according to the invention with an inner and an outer sound insulation,
[0030] Fig. 5 is a schematic representation of an alternative embodiment of a fluid conveying device according to the invention with an external sound insulation,
[0031] Fig. 6 is a schematic representation of an alternative embodiment of a fluid conveying device according to the invention with a cooling of an electronic unit of a fluid conveying unit of the fluid conveying device,
[0032] Fig. 7 is a schematic representation of an alternative embodiment of a fluid conveying device according to the invention with a cooling of a hydraulic and / or pneumatic unit of a fluid conveying unit of the fluid conveying device,
[0033] Fig. 8 is a schematic representation of an alternative embodiment of a fluid conveying device according to the invention with a pump and a fluid conveying unit in an inner chamber of the fluid conveying device,
[0034] Fig. 9 is a schematic representation of an alternative embodiment of a fluid conveying device according to the invention with a plate-shaped wave damping element within a liquid chamber of the fluid conveying device,
[0035] Fig. 10 is a schematic representation of an alternative embodiment of a fluid conveying device according to the invention with a fluid conveying unit and a liquid chamber, wherein the liquid chamber is arranged between the fluid conveying unit and a soundproofing area,
[0036] Fig. 11 is a schematic representation of an alternative embodiment of a fluid conveying device according to the invention with an internal holding element designed as a spacer,
[0037] Fig. 12 is a schematic representation of an alternative embodiment of a fluid conveying device according to the invention with an internal holding element designed as a damping layer,
[0038] Fig. 13 is a schematic representation of an alternative embodiment of a fluid conveying device according to the invention with a fluid receiving unit and a fluid conveying unit in an inner chamber of the fluid conveying device and
[0039] Fig. 14 is a schematic representation of an alternative embodiment of a fluid conveying device according to the invention with a fluid receiving unit and a fluid conveying unit arranged within the fluid receiving unit.
[0040] Description of the embodiments
[0041] Figure 1 shows a vehicle thermal management system 12a of a vehicle. The vehicle thermal management system 12a comprises at least one refrigerant circuit 52a. The vehicle thermal management system 12a comprises at least one coolant circuit 54a. The vehicle thermal management system 12a comprises at least one fluid conveying device 10a. The fluid conveying device 10a comprises at least one fluid conveying unit 14a. The fluid conveying unit 14a is integrated into the refrigerant circuit 52a. The fluid conveying unit 14a is preferably designed as a compressor. The fluid conveying unit 14a is provided for conveying a fluid. The fluid conveying unit 14a is preferably provided for circulating a refrigerant as a fluid in the refrigerant circuit 52a.
[0042] The fluid conveying device 10a comprises at least one soundproofing unit 16a for reducing noise emissions from the fluid conveying unit 14a. The soundproofing unit 16a comprises at least one liquid chamber 18a for receiving a liquid separate from the fluid. The liquid chamber 18a is integrated into the coolant circuit 54a. The liquid chamber 18a is designed as an expansion tank for the liquid.
[0043] The fluid delivery unit 14a is arranged at least substantially entirely within the liquid chamber 18a. The soundproofing unit 16a comprises an inner chamber 20a. The fluid delivery unit 14a is arranged in the inner chamber 20a. The inner chamber 20a is preferably filled with gas, in particular with ambient air. The inner chamber 20a is arranged within the liquid chamber 18a. The fluid delivery unit 14a is preferably arranged at a distance from an inner wall of the inner chamber 20a. The fluid delivery device 10a preferably comprises at least one holder 42a for fastening the fluid delivery unit 14a. The holder 42a preferably comprises a base for fastening to, for example, a vehicle body of the vehicle. The holder 42a preferably comprises at least one spacer which is fastened to the base and to the fluid delivery unit 14a.The spacer preferably extends through a receiving volume of the liquid chamber 18a for the liquid. The soundproofing unit 16a comprises at least one wave damping element 36a to dampen the movement of the liquid within the liquid chamber 18a. The wave damping element 36a is designed in particular as a flexible retaining element that surrounds the spacer within the receiving volume of the liquid chamber 18a.
[0044] The fluid delivery unit 14a preferably comprises a hydraulic and / or pneumatic unit 28a for pressurizing the fluid. The fluid delivery device 10a preferably comprises at least one fluid connection 46a, via which the hydraulic and / or pneumatic unit 28a is fluidly connected to the refrigerant circuit 52a. The fluid connection 46a preferably extends through the receiving volume of the liquid chamber 18a, in particular without a fluid connection to the receiving volume of the liquid chamber 18a. The fluid delivery unit 14a preferably comprises a motor for driving the hydraulic and / or pneumatic unit 28a. The fluid delivery unit 14a preferably comprises an electronics unit 26a for controlling the motor. The fluid delivery device 10a preferably comprises at least one electrical connection 44a for power and / or signal transmission between an external unit of the vehicle and the electronics unit 26a.The external unit can be an energy storage device, in particular a drive battery of the vehicle, an input device, an output device, for example an on-board computer of the vehicle, or the like. The electrical connection 44a is arranged in particular in a passage of the liquid chamber 18a through the receiving volume of the liquid chamber 18a.
[0045] Further exemplary embodiments of the invention are shown in Figures 2 to 14. The following descriptions and the drawings are essentially limited to the differences between the exemplary embodiments, whereby with regard to components with the same designation, in particular with regard to components with the same reference numerals, reference can in principle also be made to the drawings and / or the description of the other exemplary embodiments, in particular to Figure 1. To distinguish the exemplary embodiments, the letter a is placed after the reference numerals of the exemplary embodiment in Figure 1. In the exemplary embodiments in Figures 2 to 14, the letter a is replaced by the letters b to n.
[0046] Figure 2 shows a fluid conveying device 10b with at least one fluid conveying unit 14b for conveying a fluid and with at least one soundproofing unit 16b for reducing noise emissions from the fluid conveying unit 14b, wherein the soundproofing unit 16b comprises at least one liquid chamber 18b for receiving a liquid separate from the fluid. The fluid conveying unit 14b is arranged within a receiving volume of the liquid chamber 18b for the liquid. The fluid conveying unit 14b is in direct contact with the liquid. The fluid conveying unit 14b is preferably arranged at a distance from an inner wall of the liquid chamber 18b by means of a holder 42b of the fluid conveying device 10b.
[0047] Figure 3 shows a fluid conveying device 10c with at least one fluid conveying unit 14c for conveying a fluid and with at least one soundproofing unit 16c for reducing noise emissions from the fluid conveying unit 14c. The soundproofing unit 16c comprises at least one liquid chamber 18c for receiving a liquid separate from the fluid. The soundproofing unit 16c comprises an internal sound insulation 22c, which is arranged between a receiving volume of the liquid chamber 18c and the fluid conveying unit 14c. The sound insulation 22c encloses, in particular, the fluid conveying unit 14c.
[0048] Figure 4 shows a fluid conveying device 10d with at least one fluid conveying unit 14d for conveying a fluid and with at least one soundproofing unit 16d for reducing noise emissions from the fluid conveying unit 14d. The soundproofing unit 16d comprises at least one liquid chamber 18d for receiving a liquid separate from the fluid. The soundproofing unit 16d comprises an outer sound insulation 24d, which at least substantially completely surrounds the liquid chamber 18d. The soundproofing unit 16d comprises an inner sound insulation 22d, which is arranged between a receiving volume of the liquid chamber 18d and the fluid conveying unit 14d.
[0049] Figure 5 shows a fluid conveying device 10e with at least one fluid conveying unit 14e for conveying a fluid and with at least one soundproofing unit 16e for reducing noise emissions from the fluid conveying unit 14e, wherein the soundproofing unit 16e comprises at least one liquid chamber 18e for receiving a liquid separate from the fluid. The soundproofing unit 16e comprises an outer sound insulation 24e, which at least substantially completely surrounds the liquid chamber 18e. The soundproofing unit 16e comprises an inner chamber 20e. The fluid conveying unit 14e is arranged in the inner chamber 20e. The inner chamber 20e is preferably filled with gas, in particular filled with ambient air. The inner chamber 20e is arranged within the liquid chamber 18e. The liquid chamber 18e has an inner chamber 20e, which forms a receiving channel.In particular, the inner wall of the inner chamber 20e is formed integrally with an outer wall of the liquid chamber 18e. The fluid conveying unit 14e is at least partially arranged in the receiving channel. The liquid chamber 18e has, for example, an annular cross-section. Figure 6 shows a fluid conveying device 10f with at least one fluid conveying unit 14f for conveying a fluid and with at least one soundproofing unit 16f for reducing noise emissions from the fluid conveying unit 14f, wherein the soundproofing unit 16f comprises at least one liquid chamber 18f for receiving a liquid separate from the fluid. At least one electronics unit 26f of the fluid conveying unit 14f is arranged in the liquid chamber 18f in physical contact with the liquid chamber 18f for cooling the electronics unit 26f.The electronics unit 26f can be arranged on a wall of an inner chamber 20f of the soundproofing unit 16f or can protrude through the inner chamber 20f into the liquid.
[0050] Figure 7 shows a fluid conveying device 10g with at least one fluid conveying unit 14g for conveying a fluid and with at least one soundproofing unit 16g for reducing noise emissions from the fluid conveying unit 14g, wherein the soundproofing unit 16g comprises at least one liquid chamber 18g for receiving a liquid separate from the fluid. At least one hydraulic and / or pneumatic unit 28g of the fluid conveying unit 14g is arranged in physical contact with the liquid chamber 18g for cooling the hydraulic and / or pneumatic unit 28g. The hydraulic and / or pneumatic unit 28g can be arranged on a wall of an inner chamber 20g of the soundproofing unit 16g or can protrude through the inner chamber 20g into the liquid.
[0051] Figure 8 shows a fluid conveying device 10h with at least one fluid conveying unit 14h for conveying a fluid and with at least one soundproofing unit 16h for reducing noise emissions from the fluid conveying unit 14h, wherein the soundproofing unit 16h comprises at least one liquid chamber 18h for receiving a liquid separate from the fluid. The soundproofing unit 16h comprises an inner chamber 20h, which is arranged within the liquid chamber 18h. The soundproofing unit 16h comprises at least one pump 30h, 32h, here, for example, two pumps, for conveying the liquid. The pump 30h, 32h is arranged together with the fluid conveying unit 14h in the inner chamber 20h.Figure 9 shows a fluid conveying device 10i with at least one fluid conveying unit 14i for conveying a fluid and with at least one soundproofing unit 16i for reducing noise emissions from the fluid conveying unit 14i, wherein the soundproofing unit 16i comprises at least one liquid chamber 18i for receiving a liquid separate from the fluid. The soundproofing unit 16i comprises at least one further wave damping element 37i to dampen movement of the liquid within the liquid chamber 18i. Figure 9 shows the further wave damping element 37i, which is designed, for example, as a perforated plate or perforated membrane. Alternatively or additionally, the fluid conveying device 10i comprises a wave damping element designed as a rib, which is arranged on an inner wall of the liquid chamber 18i, in particular to prevent structure-borne sound from being transmitted via the wave damping element.Preferably, the soundproofing unit 16i comprises several further wave damping elements 37i.
[0052] Figure 10 shows a fluid conveying device 10j with at least one fluid conveying unit 14j for conveying a fluid and with at least one soundproofing unit 16j for reducing noise emissions from the fluid conveying unit 14j, wherein the soundproofing unit 16j comprises at least one liquid chamber 18j for receiving a liquid separate from the fluid. The fluid conveying unit 14j is arranged at least partially outside the liquid chamber 18j. The liquid chamber 18j is arranged between the fluid conveying unit 14j and a soundproofing area 48j. The fluid conveying device 10j is intended to reduce noise emissions at least in the soundproofing area 48j. The liquid chamber 18j preferably blocks a direct path for noise emissions from the fluid conveying unit 14j to the soundproofing area 48j.
[0053] Figure 11 shows a fluid conveying device 10k with at least one fluid conveying unit 14k for conveying a fluid and with at least one soundproofing unit 16k for reducing noise emissions from the fluid conveying unit 14k, wherein the soundproofing unit 16k comprises at least one liquid chamber 18k for receiving a liquid separate from the fluid. The fluid conveying unit 14k is attached to the liquid chamber 18k, in particular to an inner wall of an inner chamber 20k of the soundproofing unit 16k. The liquid chamber 18k is attached, for example, to a spacer of a holder 42k of the fluid conveying device 10k. The fluid conveying unit 14k is preferably attached to an internal holder 50k of the fluid conveying device 10k. The internal holder 50k comprises, for example, an internal spacer, with which the fluid conveying unit 14k is connected to a wall of the inner chamber 20k.
[0054] Figure 12 shows a fluid conveying device 101 with at least one fluid conveying unit 141 for conveying a fluid and with at least one soundproofing unit 161 for reducing noise emissions of the fluid conveying unit 141, wherein the soundproofing unit 161 comprises at least one liquid chamber 181 for receiving a liquid separate from the fluid. The fluid conveying device 101 comprises an internal holder 501. The internal holder 501 comprises a sound-insulating casing with which the fluid conveying unit 141 is embedded in the liquid chamber 181.
[0055] Figure 13 shows a fluid conveying device 10m with at least one fluid conveying unit 14m for conveying a fluid and with at least one soundproofing unit 16m for reducing noise emissions from the fluid conveying unit 14m, wherein the soundproofing unit 16m comprises at least one liquid chamber 18m for receiving a liquid separate from the fluid. The fluid conveying device 10m comprises a fluid receiving unit 34m. The soundproofing unit 16m comprises an inner chamber 20m, in particular a gas-filled one, which is arranged within the liquid chamber 18m. The fluid receiving unit 34m is arranged together with the fluid conveying unit 14m in the inner chamber 20m.
[0056] Figure 14 shows a fluid conveying device 10n with at least one fluid conveying unit 14n for conveying a fluid and with at least one soundproofing unit 16n for reducing noise emissions from the fluid conveying unit 14n, wherein the soundproofing unit 16n comprises at least one liquid chamber 18n for receiving a liquid separate from the fluid. The fluid conveying device 10n comprises a fluid receiving unit 34n. The fluid receiving unit 34n comprises at least one receiving housing 38n for receiving a refrigerant 40n. The fluid conveying unit 14n is arranged within the receiving housing 38n, in particular in direct contact with the refrigerant 40n.
Claims
Claims 1. Fluid conveying device, in particular for a vehicle thermal management system, with at least one fluid conveying unit (14a; 14b; 14c; 14d; 14e; 14f; 14g; 14h; 14i; 14j; 14k; 141; 14m; 14n) for conveying a fluid and with at least one soundproofing unit (16a; 16b; 16c; 16d; 16e; 16f; 16g; 16h; 16i; 16j; 16k; 16I; 16n; 16m) to reduce the noise emission of the fluid conveying unit (14a; 14b; 14c; 14d; 14e; 14f; 14g; 14h; 14i; 14j; 14k; 141; 14m; 14n), characterized in that the soundproofing unit (16a; 16b; 16c; 16d; 16e; 16f; 16g; 16h; 16i; 16j; 16k; 161; 16n; 16m) comprises at least one liquid chamber (18a; 18b; 18c; 18d; 18e; 18f; 18g; 18h; 18i; 18j; 18k; 18I; 18m; 18n) for receiving a liquid separate from the fluid.
2. Fluid conveying device according to claim 1, characterized in that the fluid conveying unit (14a; 14b; 14c; 14d; 14e; 14f; 14g; 14h; 14i; 14k; 141; 14m; 14n) is arranged at least substantially completely within the liquid chamber (18a; 18b; 18c; 18d; 18e; 18f; 18g; 18h; 18i; 18k; 18I; 18m; 18n).
3. Fluid conveying device according to claim 1 or 2, characterized in that the soundproofing unit (16a; 16e; 16f; 16g; 16h; 16i; 16k; 16m) comprises an inner chamber (20a; 20e; 20f; 20g; 20h; 20i; 20k; 20m), in particular a gas-filled chamber, which is located within the liquid chamber (18a; 18e; 18f; 18g; 18h; 18i; 18k; 18m) is arranged, wherein the fluid conveying unit (14a; 14e; 14f; 14g; 14h; 14i; 14k; 14m) is arranged in the inner chamber (20a; 20e; 20f; 20g; 20h; 20i; 20k; 20m) Fluid conveying device according to one of the preceding claims, characterized in that the liquid chamber (18a; 18b; 18c; 18d; 18e; 18f; 18g; 18h; 18i; 18j; 18k; 18I; 18m; 18n) is designed as an expansion vessel for the liquid. Fluid conveying device according to one of the preceding claims, characterized in that the soundproofing unit (16c; 16d; 16j) comprises an internal sound insulation (22c; 22d; 22j) which is arranged between the liquid chamber (18c; 18d; 18j) and the fluid conveying unit (14c; 14d; 14j). Fluid conveying device according to one of the preceding claims, characterized in that the soundproofing unit (16d; 16e; 16j) comprises an outer sound insulation (24d; 24e; 24j) which surrounds the liquid chamber (18d; 18e; 18j) at least substantially completely.Fluid conveying device according to one of the preceding claims, characterized in that at least one electronic unit (26f; 26g) of the fluid conveying unit (14f; 14g) is arranged in physical contact with the liquid chamber (18f; 18g) for cooling the electronic unit (26f; 26g). Fluid conveying device according to one of the preceding claims, characterized in that at least one hydraulic and / or pneumatic unit (28g) of the fluid conveying unit (14g) is arranged in physical contact with the liquid chamber (18g) for cooling the hydraulic and / or pneumatic unit (28g).Fluid conveying device according to one of the preceding claims, characterized in that the soundproofing unit (16h) comprises an inner chamber (20h), in particular gas-filled, which is arranged within the liquid chamber (18h), and at least one pump (30h, 32h) for conveying the liquid, wherein the pump (30h, 32h) is arranged in the inner chamber (20h).
10. Fluid conveying device according to one of the preceding claims, characterized by a fluid receiving unit (34m; 34n), wherein the soundproofing unit (16m; 16n) comprises an inner chamber (20m; 20n), in particular gas-filled, which is arranged within the liquid chamber (18m; 18n) and wherein the fluid receiving unit (34m; 34n) is arranged in the inner chamber (20m; 20n).
11. Fluid conveying device according to one of the preceding claims, characterized in that the soundproofing unit (16a; 16b; 16c; 16d; 16e; 16f; 16g; 16h; 16i; 16j) comprises at least one wave damping element (36a; 36b; 36c; 36d; 36e; 36f; 36h; 36i, 37i; 36j) to dampen a movement of the liquid within the liquid chamber (18a; 18b; 18c; 18d; 18e; 18f; 18g; 18h; 18i; 18j).
12. Fluid conveying device according to one of the preceding claims, characterized in that the fluid conveying unit (14k; 141) is attached to the fluid chamber (18k; 181).
13. Fluid conveying device according to one of the preceding claims, characterized by a fluid receiving unit (34n) with at least one receiving housing (38n) for receiving a refrigerant (40n), wherein the fluid conveying unit (14n) is arranged inside the receiving housing (38n).
14. Fluid conveying device according to one of the preceding claims, characterized in that the fluid chamber (18e) forms a receiving recess or a receiving channel in which the fluid conveying unit (14e) is at least partially arranged.
15. Vehicle thermal management system with at least one fluid conveying device according to one of the preceding claims, with a refrigerant circuit (52a) in which the fluid conveying unit (14a) is integrated, and with at least one coolant circuit (54a) in which the liquid chamber (18a) is integrated.