# US 2013/0156571 A1 · Fan with fluid diversion mechanism

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- Number: US 2013/0156571 A1
- Document ID: US20130156571A1
- Status: Published application
- Kind: A1
- Application number: 13/661,020
- Filed: 2012-10-25
- Published: 2013-06-20
- Earliest claimed: 2011-11-15
- Assignees: Enermax Technology Corporation
- Inventors: Yen-Wen SU
- Web page: https://patentgrep.com/patent/US20130156571A1

## CPC

- F04D 29/547: {having a special shape in order to influence fluid flow}
- F04D 29/526: {Details of the casing section radially opposing blade tips (ducts F04D29/545)}
- F04D 25/0613: {the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator}
- F04D: NON-POSITIVE-DISPLACEMENT PUMPS (engine fuel-injection pumps F02M; ion pumps H01J41/12; electrodynamic pumps H02K44/02)

## Abstract

A fan with a fluid diversion mechanism includes a fan frame structure and a vane wheel, and the fan frame structure has a containing space, an air inlet and an air outlet, and the fan frame structure includes a coaming plate having a plurality of diversion components, and an opening formed at any one of the diversion components and arranged in a direction towards the air inlet, and the vane wheel is installed in the containing space of the fan frame structure, so that when the vane wheel is operated, air current produced by vanes of the fan guides the air current entered from the diversion component to an external side of a retaining platform which is a leeward side, and the air current has an effective coverage for blowing a desired heat source and improves the overall airflow and air pressure of the fan.

## Claims

### Claim 1

A fan with a fluid diversion mechanism, comprising:
a vane wheel; and
a fan frame structure, having a containing space provided for installing the vane wheel, and an air inlet and an air outlet formed at the fan frame structure, and the fan frame structure including a coaming plate, and the coaming plate having a plurality of diversion components, and each of the diversion components having an opening arranged in a direction towards the air inlet.

### Claim 2 (depends on 1)

The fan with a fluid diversion mechanism according to claim 1, wherein any one of the diversion components includes a convex arc plate extended from an exterior of the coaming plate, and the opening is formed at a top area of the convex arc plate.

### Claim 3 (depends on 2)

The fan with a fluid diversion mechanism according to claim 2, wherein the convex arc plate has a cross-section in a semi-funnel shape.

### Claim 4 (depends on 3)

The fan with a fluid diversion mechanism according to claim 3, wherein the opening has an inverted bevel formed at the periphery of the opening.

### Claim 5 (depends on 1)

The fan with a fluid diversion mechanism according to claim 1, wherein any one of the diversion components includes a concave arc plate concavely recessed into the coaming plate, and the opening is formed at a bottom area of the concave arc plate.

### Claim 6 (depends on 5)

The fan with a fluid diversion mechanism according to claim 5, wherein the concave arc plate has a cross-section in a semi-funnel shape.

### Claim 7 (depends on 6)

The fan with a fluid diversion mechanism according to claim 6, wherein the opening has an inverted bevel formed at the periphery of the opening.

### Claim 8 (depends on 1)

The fan with a fluid diversion mechanism according to claim 1, wherein the fan frame structure further includes a base and a cover, and the base is coupled to the cover through the coaming plate, and the air outlet is formed at the base, and the air inlet is formed at the cover.

### Claim 9 (depends on 8)

The fan with a fluid diversion mechanism according to claim 8, wherein the base includes a plurality of snap hooks, and the coaming plate has a plurality of lower snap slots coupled to the lower snap slots respectively.

### Claim 10 (depends on 8)

The fan with a fluid diversion mechanism according to claim 8, wherein the cover includes a plurality of snap hooks, and the coaming plate has a plurality of upper snap slots coupled to the upper snap slots respectively.

### Claim 11 (depends on 1)

The fan with a fluid diversion mechanism according to claim 1, wherein the fan frame structure further includes a cover coupled to the coaming plate, and the air outlet is formed at the coaming plate, and the air inlet is formed at the cover.

### Claim 12 (depends on 1)

The fan with a fluid diversion mechanism according to claim 1, wherein a portion of the diversion components includes a convex arc plate extended from the exterior of the coaming plate, and the opening is formed at a top area of the convex arc plate, and the other portion of the diversion components includes a concave arc plate concavely recessed into the coaming plate, and the opening is formed at a bottom area of the concave arc plate.
