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CN-121986220-A - Blower for fuel cell assembly

CN121986220ACN 121986220 ACN121986220 ACN 121986220ACN-121986220-A

Abstract

The invention relates to a modular blower system for a fuel cell assembly for recirculating a gas mixture for the operation of the fuel cell assembly, comprising a blower (1) having a drive motor (7, 8, 9) with a rotor (9) coupled to a motor shaft (7) and a stator (8) arranged radially outside the rotor (9). A blower wheel (5) coupled to the motor shaft (7) is provided for conveying the gas mixture from the inlet side to the outlet side of the blower (1) when rotating, wherein the blower (1) has an inlet housing connection (13) on the inlet side and an outlet housing connection (19) on the outlet side, wherein the inlet connection (13) and the outlet housing connection (19) are each designed as standardized interfaces. The blower system is provided with an inlet housing adapter (17) and an outlet housing adapter (18), which can each be coupled to a standardized interface on one connection side and are each provided with a predefinable interface on the other connection side.

Inventors

  • HAHN STEPHEN
  • Michael linda
  • Marius Patzer

Assignees

  • 采埃孚商用车系统全球有限公司

Dates

Publication Date
20260505
Application Date
20241010
Priority Date
20231018

Claims (7)

  1. 1. A modular blower system for a fuel cell assembly for recycling a gas mixture for operation of the fuel cell assembly, the blower system having: A blower (1) having a drive motor (7, 8, 9) with a rotor (9) coupled to a motor shaft (7) and a stator (8) arranged radially outside the rotor (9), wherein a blower wheel (5) coupled to the motor shaft (7) is provided for conveying a gas mixture from an inlet side to an outlet side of the blower (1) during rotation, wherein the blower (1) has an inlet housing connection (13) on the inlet side and an outlet housing connection (19) on the outlet side, wherein the inlet connection (13) and the outlet housing connection (19) are each designed as standardized interfaces; An entry housing adapter (17) and an exit housing adapter (18) which can each be coupled to a standardized interface on one connection side and are each provided with a predefinable interface on the other connection side.
  2. 2. The modular blower system of claim 1, wherein at least one standardized interface is configured as a threaded joint.
  3. 3. The modular blower system of claim 1 or 2, wherein at least one standardized interface is configured as a clamping joint.
  4. 4. The modular blower system of any preceding claim, wherein the interface is sealable with a standardized sealing element.
  5. 5. Modular blower system according to any one of the preceding claims, characterized in that an assembly for separating water contained in the gas mixture with a drain assembly (16) is provided on the blower (1), wherein an interface for a drain assembly (16) is provided at least on the escape housing adapter (18).
  6. 6. A blower (1) according to any one of the preceding claims, characterized in that an annular channel (10) for guiding a gas mixture from the inlet side to the outlet side of the annular channel (10) is provided radially between the rotor (9) and the stator (8), which blower furthermore has a flow guiding device (14) which is provided in the region of the inlet side of the annular channel (10) and is designed for imparting a swirl in the circumferential direction of the annular channel (10) onto the gas mixture entering the annular channel (10).
  7. 7. A fuel cell assembly having a modular blower system according to any one of the preceding claims, wherein a blower (1) of the blower system is connected with the fuel cell assembly through the inlet housing adapter (17) and the outlet housing adapter (18) for recycling a gas mixture for operation of the fuel cell assembly.

Description

Blower for fuel cell assembly Technical Field The present invention relates to a blower for a fuel cell assembly for recycling a gas mixture for operation of the fuel cell assembly. In particular, the present invention relates to a blower capable of separating water from a gas mixture. The invention further relates to a fuel cell assembly having such a blower. Background Fuel cells of different structural types are used for stationary and mobile applications. In these known fuel cells using hydrogen as an energy carrier, there is a need to transport gaseous media. In particular, fuel cells having an anode region and a cathode region are known, wherein hydrogen from the anode region is recirculated in order to ensure the function of the fuel cell. For this purpose, blowers are used in the prior art, which are designed to convey a corresponding gaseous medium. Disclosure of Invention The object of the present invention is to provide an improved blower which can be used more flexibly and with which the function of the fuel cell system can be ensured. This object is achieved by the features of the claims. According to one aspect, the invention relates to a modular blower system for a fuel cell assembly for recirculating a gas mixture for operation of the fuel cell assembly, the blower system having a blower and a drive motor having a rotor coupled to a motor shaft and a stator arranged radially outward of the rotor. A blower wheel coupled to the motor shaft is provided for conveying the gas mixture from the inlet side to the outlet side of the blower during rotation. The blower has an inlet housing connection on the inlet side and an outlet housing connection on the outlet side, wherein the inlet housing connection and the outlet housing connection are each designed as standardized interfaces. The blower further has an inlet housing adapter and an outlet housing adapter, which can each be coupled to a standardized interface on one connection side and each be provided with a predefinable interface on the other connection side. The inlet housing adapter can be arranged with one side on the inlet side of the blower and has a presettable connection on the other side. The escape housing adapter can be arranged with one side on the escape side of the blower and has a presettable connection on the other side. With the installed adapter (which can be preset by the manufacturer of the fuel cell assembly in view of the joint), a unified series of blowers can be produced, which can be integrated into different fuel cell systems. It can thus be prevented that for each manufacturer it is required that a correspondingly adapted blower must be manufactured. According to one embodiment, at least one of the standardized interfaces may be configured as a threaded joint. The entry housing and the exit housing may be provided with threaded joints. The entry adapter and the escape adapter may have corresponding threaded joints with which the adapters may be mounted to the housing. The adapter can be integrated into a different fuel cell assembly using a preset connection without having to change the blower. According to one embodiment, at least one of the standardized interfaces may be configured as a clamping connection. The access housing and the escape housing may be provided with clamping joints. The inlet adapter and the outlet adapter can have corresponding clamping tabs with which the adapter can be mounted to the blower. The adapter can then be integrated into a different fuel cell assembly using the preset tabs without having to change the blower. The standardized interface can also be designed as a flanged connection. According to one embodiment, the interface may be sealed with a standardized sealing element. For each of the above-described alternatives of the interface, only one sealing arrangement must be provided. The interface into the housing and the interface out of the housing may be designed identically. The flexibility of use of the blower can then be further increased. According to one embodiment, an annular channel for guiding the gas mixture from the inlet side to the outlet side of the annular channel can be provided between the rotor and the stator in the radial direction, and a flow guiding device can be provided, which is provided in the region of the inlet side of the annular channel and is designed to impart a swirl in the circumferential direction of the annular channel to the gas mixture entering the annular channel. The blower may also have a flow guiding device which is arranged in the region of the inlet side of the annular channel and is designed to impart a swirl in the circumferential direction of the annular channel to the gas mixture entering the annular channel. According to one embodiment, an assembly for separating water contained in a gas mixture with a drainage assembly can be provided on the blower, wherein at least on the escape housing adapter an interface for the drainage assembly is