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centrifugal blower

A blower and centrifugal technology, applied in the field of centrifugal blowers, can solve the problems of inability to continuously form connecting holes, and achieve the effect of preventing water leakage.

Active Publication Date: 2019-11-12
VALEO JAPAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the blower disclosed in Patent Document 1, although there are communication holes connecting the upper air passage and the lower air passage in the partition plate, the communication holes cannot be continuously formed.
Therefore, water entering the upper air passage cannot be completely prevented from reaching the fitting portion of the partition plate and the upper volute through the gap between the communication hole and other communication holes.

Method used

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Examples

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Embodiment Construction

[0066] Hereinafter, one embodiment of the present invention will be described with reference to the drawings. The embodiments described below are examples of the present invention, and the present invention is not limited to the following embodiments. It should be noted that, in the present specification and drawings, members with the same reference numerals represent members that are the same as each other. Various modifications are possible as long as the effects of the present invention can be achieved.

[0067] figure 1 It is a schematic cross-sectional view showing an example of a vehicle air conditioner including a centrifugal blower according to this embodiment. Such as figure 1 As shown, the centrifugal blowers 1 and 1' of the present embodiment are equipped with a first air passage 10 and a second air passage 20 separated up and down by a partition S, and are suitable for use with external air AE introduced into the first air passage 10, internal air AR A double-f...

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Abstract

The present invention provides a centrifugal blower in which water entering the upper air passage will not reach the fitting portion between the partition plate and the upper scroll, thereby preventing water from leaking to the outside of the scroll. The centrifugal blower (1, 1') includes a first air passage (10) and a second air passage (20) separated up and down by a partition (S), an intermediate scroll member (30) having the partition, and an intermediate scroll. The first scroll member (12) is formed by fitting the scroll members to form the first air passage (10). The first fitting portion (13) formed by the intermediate scroll member and the first scroll member is located at the first air passage. above.

Description

technical field [0001] The present invention relates to a centrifugal blower suitable for a double-flow type vehicle air conditioner capable of simultaneously circulating the interior air and the exterior air of the vehicle respectively. Background technique [0002] As a blower suitable for an air conditioner for a vehicle of a dual-layer circulation type of internal and external air, there is known a blower that rotates an impeller by a single motor and interlocks with an intake damper so as to simultaneously and separately inhale the interior air and the exterior air of the vehicle (for example, refer to Patent Document 1). [0003] As a structure of such a blower, Patent Document 1 discloses an example in which a lower scroll is fitted to a partition plate, and a partition plate is fitted to an upper scroll. Thereby, the inside of a scroll is partitioned up and down by a partition plate, and internal air and external air can be sucked in separately. [0004] Furthermor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D25/08F04D29/42F04D29/44F04D29/28
CPCF04D25/08F04D29/281F04D29/4226F04D29/441B60H1/00471B60H1/00528B60H2001/00085B60H2001/00092B60H2001/00135F04D25/166F04D29/424F04D29/4246
Inventor 吉崎久善荒木大助长野秀树七间豊
Owner VALEO JAPAN CO LTD