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Air Conditioning Units for Vehicles

A technology for air conditioning units and vehicles, applied in vehicle components, air handling equipment, heating/cooling equipment, etc., to solve problems such as increased ventilation loss

Active Publication Date: 2022-08-09
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] However, in the structure in which the drain hole is provided on the air blowing side of the blower, part of the air whose temperature has been adjusted in the heat exchanger flows to the outside of the air conditioner casing through the drain hole, so the ventilation loss increases.

Method used

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  • Air Conditioning Units for Vehicles
  • Air Conditioning Units for Vehicles
  • Air Conditioning Units for Vehicles

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0045] refer to Figure 1 to Figure 7 This embodiment will be described. In addition, each arrow indicating up-down, left-right, and front-rear in each figure indicates the up-down direction, the left-right direction, and the front-rear direction in the vehicle-mounted state.

[0046] figure 1 The shown air-conditioning unit 10 for a vehicle is arranged inside, for example, an instrument panel arranged in the front part of the vehicle interior. like figure 1 As shown, the vehicle air-conditioning unit 10 includes an air-conditioning case 12 , an inner / outer valve (not shown), an evaporator 16 , a blower 18 , a heater core (not shown), an air mix door (not shown), and the like.

[0047] The air-conditioning case 12 constitutes an outer casing of the vehicle air-conditioning unit 10, and a ventilation passage 13 through which the blowing air blown into the vehicle interior flows is formed therein. The air conditioner casing 12 has a certain degree of elasticity, and is forme...

no. 2 approach

[0098] Next, refer to Figure 8 , Figure 9 The second embodiment will be described. The present embodiment differs from the first embodiment in the position where the downstream side communicating portion 27A is provided in the dividing portion 23 .

[0099] like Figure 8 , Figure 9 As shown, the downstream communication portion 27A of the present embodiment is formed at a position above the second connection portion 232 connected to the lower wall forming portion 22 among the portions facing the downstream space 132 in the partition portion 23 .

[0100] Specifically, the downstream communication portion 27A of the present embodiment is constituted by a plurality of communication holes 272 formed in the partition portion 23 at a position away from the lower wall forming portion 22 upward. The plurality of communication holes 272 are formed of vertically long holes arranged in the left-right direction. In addition, the communication hole 272 may be constituted by a hor...

no. 3 approach

[0105] Next, refer to Figure 10 ~ Figure 12 A third embodiment will be described. In the present embodiment, the shapes of the upstream communication portion 26B and the downstream communication portion 27B are different from those of the first embodiment.

[0106] like Figure 10 , Figure 11 As shown, the upstream communication portion 26B of the present embodiment is constituted by a plurality of slit-shaped communication holes 263 intersecting with the wall surface of the lower wall forming portion 22 . Each of the plurality of communication holes 263 constituting the upstream communication portion 26B extends upward from the first connection portion 231 connected to the lower wall forming portion 22 in the portion facing the upstream space 131 in the partition portion 23 .

[0107] and, as Figure 10 , Figure 12 As shown, the downstream communication portion 27B of the present embodiment is constituted by a plurality of slit-shaped communication holes 273 intersect...

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PUM

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Abstract

The present invention provides a vehicle air-conditioning unit capable of suppressing the generation of noise during drainage and suppressing ventilation loss. In an air conditioning unit (10) for a vehicle, an air conditioning casing (12) is provided with a space forming portion (20) that forms a drainage space (21) divided with respect to the ventilation passage (13). The space forming portion is formed with a drain portion (24) that drains water inside the air-conditioning case to the outside of the air-conditioning case. In addition, the space forming portion is formed with an upstream communication portion (26) that communicates the upstream space (131) upstream of the air flow of the blower (18) in the ventilation passage with the drainage space. Moreover, the downstream side communicating part (27) which connects the downstream side space (132) on the downstream side of the air flow downstream of the blower in the ventilation passage and the space for drainage is formed in the space forming part.

Description

[0001] Cross-referencing of related applications [0002] The present application is based on Japanese Application No. 2016-144484 filed on July 22, 2016, the contents of which are incorporated herein by reference. technical field [0003] The present invention relates to a vehicle air-conditioning unit for air-conditioning a vehicle interior. Background technique [0004] Conventionally, an air-mixing air-conditioning unit for a vehicle is known that adjusts the mixing ratio of the air cooled by the evaporator, which is a cooling heat exchanger, and the air heated by the heater core, which is a heating heat exchanger, so as to adjust the mixing ratio. Adjust the temperature of the air blown into the vehicle interior. [0005] There is a so-called suction-type vehicle air-conditioning unit in which a blower for blowing air out into the vehicle interior is arranged on the downstream side of the air flow of a heat exchanger such as an evaporator (for example, refer to the pat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60H1/32
CPCB60H1/32B60H1/3233B60H1/00028B60H1/00064B60H1/00514B60H1/3227
Inventor 小林亮奥村佳彦关户康裕加藤慎也
Owner DENSO CORP