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Centrifugal blower for vehicle air conditioner

A technology for blower and vehicle, which is applied to parts of a pumping device for elastic fluid, pump device, vehicle parts, etc., can solve problems such as no disclosure, and achieve the effect of effective cooling

Active Publication Date: 2022-03-15
VALEO JAPAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the centrifugal blower described in Patent Document 1 is not a centrifugal blower suitable for a double-flow type vehicle air conditioner.
That is, Patent Document 1 does not disclose a method for cooling the motor while preventing problems caused by the mixing of vehicle interior air into outside air in a double-flow centrifugal blower.

Method used

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  • Centrifugal blower for vehicle air conditioner
  • Centrifugal blower for vehicle air conditioner
  • Centrifugal blower for vehicle air conditioner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0047]

[0048] A first embodiment of the present invention will be described with reference to the following drawings.

[0049] figure 1 as well as figure 2 It is a cross-sectional view showing the configuration of an air intake unit and a centrifugal blower of an air conditioner for a vehicle. in addition, image 3 as well as Figure 4 , respectively represent the cross-sectional views of the structures of the first and second scroll bodies. Figure 5 It is a perspective view of a scroll body housing including a first scroll body and a second scroll body.

[0050] The centrifugal blower 1 of the present embodiment is a centrifugal blower for a double-flow type air conditioner, and is used in an air conditioner for a vehicle. Such as figure 1 as well as figure 2 As shown, the centrifugal blower 1 has: a motor 13, a motor housing portion 130 for housing the motor 13, a first impeller 5 and a second impeller 6 arranged in the direction of the rotation axis Ax of the ...

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PUM

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Abstract

The present invention provides a centrifugal blower (1), which can effectively cool a motor and prevent problems caused by the mixing of the air in the vehicle interior with the outside air. The centrifugal blower (1) is equipped with a first scroll body (18), a second scroll body (19) and a motor housing portion (130) for housing a motor, and the first scroll body (18) and the second scroll body When one of the (19) sucks in the outside air (FE) and the other sucks in the cabin air (FR), the scroll body that sucks in the outside air (FE) is provided with a cooling air intake for the cooling motor (13). The cooling air intake (40) is provided with a cooling air supply port (131) communicating with the cooling air intake (40) and guiding the cooling air to the motor (13) on the motor housing part (130).

Description

[0001] technology area [0002] The present invention relates to a centrifugal blower suitable for a dual-flow type vehicle air conditioner. Background technique [0003] As a centrifugal blower for a vehicle, there is known a blower that takes in either outside air (vehicle outside air) or vehicle interior air and blows air (for example, refer to Patent Document 1). Such a centrifugal blower has an impeller that is rotationally driven by a motor to blow out air, and directs the air blown from the impeller toward a scroll body of the blowing flow path. In addition, as a centrifugal blower for vehicles, a centrifugal blower suitable for a double-flow type vehicle air conditioner, and a so-called double-flow type centrifugal blower having air flow paths in upper and lower layers are known. This centrifugal blower can take in outside air through one air flow path to blow air, and at the same time can take in and blow air from the vehicle interior through the other air flow path....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D25/08F04D29/44F04D29/28
CPCF04D25/08F04D29/281F04D29/441F04D17/162F04D25/082F04D25/166F04D29/424F04D29/4246B60H1/00471B60H2001/00085B60H2001/00092F04D29/5806
Inventor 吉崎久善
Owner VALEO JAPAN CO LTD