Reinforced structure of exhaust fan housing

Abstract

This invention relates to a reinforced structure for the casing of an exhaust fan. Specifically, it addresses the problem of existing exhaust fan casings being prone to cracking during transportation, vehicle vibration, or temporary storage and stacking in warehouses. Because the motor is locked in the center of the exhaust fan, its weight causes the lower edge of the round end face of the exhaust fan casing to touch the ground, making this edge highly susceptible to damage. The new exhaust fan casing is made of a single piece of fiberglass plastic, featuring a square end for the motor assembly and a round end for the blade assembly. A protective mesh is provided on the round end face to isolate the blades, providing safety protection. Furthermore, it prevents damage during operation. During the transportation of the fan before installation, the vibration of the vehicle during transport, or when it is temporarily stored or stacked in the warehouse, the lower edge of the round end face must touch the ground due to the limitation of the outer shell shape. This makes the lower edge of the round end face susceptible to cracking due to the pressure of the motor weight. Therefore, in the molding of the exhaust fan shell, this invention integrates a metal reinforcing sheet into the lower edge of the round end face. This reinforcing sheet increases the structural strength of this part, allowing the lower edge of the round end face to withstand the pressure of the motor weight without cracking, maintaining the structural integrity of the exhaust fan shell, and achieving excellent industrial application value.

Claims

1. A fan housing reinforcement structure, comprising: a housing integrally molded from glass fiber material, the housing having a square end for assembling a motor and a round end for assembling a blade, the end face of the round end being provided with a protective net for isolating the blade and forming a safety protection, characterized in that a metal reinforcing sheet is integrally embedded at the lower edge of the end face of the round end of the housing, the reinforcing sheet being used to increase the structural strength of the lower edge of the end face of the round end of the housing, so that the lower edge of the end face of the round end can still maintain structural integrity and not crack when it is placed horizontally and subjected to the weight pressure of the motor.

2. The fan housing reinforcement structure as described in claim 1, wherein the reinforcement sheet is an L-shaped reinforcement sheet, which covers and is attached to the right-angled lower edge of the round end face.

3. The exhaust fan housing reinforcement structure as described in claim 2, wherein the surface of the L-shaped reinforcement sheet is provided with a plurality of arc-shaped ribs, the plurality of arc-shaped ribs including an arc-shaped rib A, an arc-shaped rib B and an arc-shaped rib C, for improving the structural rigidity of the L-shaped reinforcement sheet.

4. The fan housing reinforcement structure as described in claim 1, wherein the reinforcement sheet is a type I reinforcement sheet, which is integrally formed by embedding along the arc edge of the end face of the round end.

5. The fan housing reinforcement structure as described in claim 4, wherein the surface of the type of reinforcement sheet is provided with a plurality of arc-shaped ribs, the plurality of arc-shaped ribs including an arc-shaped rib A and an arc-shaped rib, for improving the deformation resistance of the type of reinforcement sheet.

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