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Backpack fan system

A fan system and knapsack technology, which is applied in the field of knapsack tool systems, can solve the problems that the battery pack cannot be too heavy and the fan cannot adapt to long-term work, so as to reduce the operating burden, reduce the floor space, and improve the activity space. Effect

Active Publication Date: 2017-08-08
NANJING CHERVON IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing electric fans using battery packs often combine the battery pack directly to the fan body. In order to ensure that users can operate the electric fan flexibly and provide a better operating experience, the battery pack must not be too heavy, so the existing fans are often not suitable for long-term use. time work needs

Method used

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  • Backpack fan system
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Examples

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Embodiment approach

[0049] As an embodiment, the air duct assembly 33 includes an air inlet pipe 331 , a hose 332 and an air outlet pipe 333 , wherein the hose 332 is arranged between the air inlet pipe 331 and the air outlet pipe 333 . One end of the hose 332 is connected to the air inlet pipe 331 , and the other end is connected to the air outlet pipe 333 , so that the air inlet pipe 331 , the hose 332 and the air outlet pipe 333 can form an air duct 330 . The air duct 330 has an air inlet 331 a disposed on the air inlet pipe 331 and an air outlet 333 a disposed on the air outlet pipe 333 , and the hose 332 is arranged between the air inlet pipe 331 and the air outlet pipe 333 . The air duct 330 at the air inlet 331a gradually shrinks from outside to inside. The air outlet pipe 333 includes a frame 333e, and the frame 333e is arranged at an end of the air outlet pipe 333 connected with the hose 332 for supporting the air outlet pipe 333 .

[0050] As an optional solution, the main fan 32 is ar...

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Abstract

The invention discloses a backpack fan system comprising a fan device, backpack equipment and a connecting device. The fan device comprises a motor, a main fan and an air duct assembly, wherein the main fan is driven by the motor to rotate to produce air flows, the air duct assembly is provided with an air duct to guide the air flows produced by the main fan, and the air duct assembly comprises an air inlet pipe provided with an air inlet, an air outlet pipe provided with an air outlet and a bendable hose connected with the air inlet pipe and the air outlet pipe to enable the air inlet pipe, the hose and the air outlet pipe to constitute the air duct. The backpack equipment comprises straps allowing being worn by a user and an equipment body connected to the straps. The connecting device is connected with the fan device and the backpack equipment, transmits the gravity of the fan device and acting force from the fan device to the backpack equipment and is connected with the air inlet pipe and the equipment body. According to the backpack fan system, the operation burden of the user is relieved, and the operation comfort degree of the user is improved.

Description

technical field [0001] The invention relates to a knapsack tool system, in particular to a knapsack fan system. Background technique [0002] As the power source of portable electric tools, battery packs have always been the main link restricting the development of portable electric tools. In the past, the output voltage of battery packs was often low. When they drive high-power electric tools, they often cause insufficient power and poor battery life. . [0003] However, by increasing the number of cells and increasing the output voltage of the battery pack, its size and weight will increase accordingly, making it difficult for the power tool to adapt to it or causing troubles to the user's operation, especially the increase in weight makes it difficult for the user to use flexibly electrical tools. [0004] Fan is a general term for two kinds of airflow equipment, blower and blower. It is a common power tool that can be used to clean or collect plant debris in gardening ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01H1/08
CPCE01H1/08E01H2001/0881
Inventor 山冈敏成郭建朋
Owner NANJING CHERVON IND
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