CN2714983Y

CN2714983Y - Civil chimney induced draft fan with antifreezing function

Info

Publication number: CN2714983Y
Application number: CN 200420012144
Authority: CN
Inventors: 杨华春; 庄会江
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-06-28
Filing date: 2004-06-28
Publication date: 2005-08-03
Anticipated expiration: 2014-06-28

Abstract

The utility model provides a civil draft fan with anti-freezing function which belongs to the technical field of a civil stove auxiliary device. A body of the draft fan comprises a chimney connecting socket, a bracket, an electric motor, a protecting cover and an air renewal cap, and the bracket, the electric motor and the protecting cover are sequentially installed on the socket. The utility model is characterized in that the tube wall of the connecting socket is provided with an electrothermal element which is connected with a power source via a temperature control device, heating the connecting socket body, thawing icy water on the fan blades of the electric motor, thus assuring the normal work of the electric motor. The electrothermal element is selected from electricity causing heating elements such as a resistance wire and an electrothermal film and so on, and the electrothermal elements are added on the existing draft fan, assuring the normal use of the draft fan in cold winter, avoiding unsafe and inconvenient factors which are caused by artificial debacle draft fan which users carry on climbing up the house, stepping on snow. The utility model can widely used for the chimney of the cook ware and range of civil architecture or restaurant dining rooms, preventing icy water on the draft fan from freezing in winter.

Description

Civilian chimney air-introduced machine with antifreeze function

Technical field:

The utility model is the improvement to existing civilian chimney air-introduced machine, and a kind of domestic guiding fan with antifreeze function is provided, and belongs to domestic stove servicing unit technical field.

Background technology;

Domestic guiding fan is provided in a side of the pressure blower unit on the throat, and the air that drives in the cooking stove by forced motor flows, and improves the efficiency of combustion of fuel, for daily life brings great convenience.But, the north in cold, this device in use, because the chimney internal-external temperature difference is bigger, the moisture that fuel combustion produced often hangs on the blade of air-introduced machine, freezes into ice, air-introduced machine can not be rotated, can't air inducing, need to go up the ice and snow that blower unit be removed to remove in the roof by artificial, not only bother but also dangerous; At this moment, if the force start air-introduced machine also can burn motor, cause economic loss, the serious fire that also can cause takes place, and brings great inconvenience to life.

Summary of the invention:

The utility model provides a kind of domestic guiding fan that has antifreeze function, has solved when existing air-introduced machine uses winter to freeze the problem that can't work easily.

Technical solution of the present utility model is as follows: the body of air-introduced machine comprises chimney Connection Block and seat thereof upward support, motor, protecting cover and the ventilation cap of sequence unit, it is characterized in that: the tube wall of Connection Block is provided with heating, be connected with power supply by temperature controller, heat connecting pedestal, frost on the electric motor fan blade can be melted, guarantee the motor operate as normal.

Described heating is selected from: electricity such as resistance wire, Electric radiant Heating Film cause heater element.

Also being provided with temperature controller on motor is connected with circuit for controlling motor by electric capacity.

Good effect of the present utility model is: install heating additional on existing air-introduced machine, guaranteed that air-introduced machine normally used in the winter of cold, avoided the user walk in the snow winter main room manually thaw air-introduced machine with dangerous and inconvenient factor, can be widely used on the chimney of civil buildings or dining room, restaurant cooker cooking stove, prevent that air-introduced machine last frost in winter from freezing.

Description of drawings:

Fig. 1 is the utility model structure principle chart.

The specific embodiment:

According to shown in Figure 1, on chimney Connection Block 12, be provided with the support 5 of supporting motor 3, fan blade 7 devices are on the turning cylinder of motor 3, protecting cover 2 is for being buckled on the motor cover 4 along structure greatly, the top also is provided with the ventilation cap 1 of band ventilating opening, it is characterized in that: heating is distributed on the tube wall of chimney Connection Block 12 with adopting heating wire 6 even structure, and heating wire 6 is connected with temperature controller 8 with binding post 9 respectively, control heating wire 6 duties; On motor 3, also be provided with temperature controller 11 and be connected with circuit for controlling motor 10, prevent motor 3 because of thaw, crock is too much, or stuck or the like the resistance of bearing is excessive and burn motor.

Claims

1, a kind of domestic guiding fan with antifreeze function, the body of air-introduced machine comprises chimney Connection Block and seat thereof upward support, motor, protecting cover and the ventilation cap of sequence unit, it is characterized in that: the tube wall of chimney Connection Block is provided with heating, is connected with power supply by temperature controller.

2, domestic guiding fan according to claim 1 is characterized in that: also be provided with temperature controller and be connected with circuit for controlling motor on motor.