CN207813996U - A new type of coil fan - Google Patents

Abstract

The utility model relates to the field of air conditioning systems, in particular to a novel coil fan which comprises a volute and a centrifugal fan blade; a first air inlet and a second air inlet are respectively formed in two axial side surfaces of the volute, and the first air inlet and the second air inlet are axially corresponding; an air outlet is formed in the end part of the volute, and a first air inlet, a second air inlet and an air channel from the air outlet are formed in the volute; the centrifugal fan blade is arranged in the volute between the first air inlet and the second air inlet, a first air cavity of the centrifugal fan blade is opposite to the first air inlet, and a second air cavity of the centrifugal fan blade is opposite to the second air inlet; a motor support is arranged in the first air cavity, a driving motor is fixed on the motor support, and an output shaft of the driving motor is connected and fixed at the center of a base plate of the centrifugal fan blade. The novel coil fan adopts the built-in driving motor, and the installation space required by the coil fan is greatly reduced on the whole.

Description

A new type of coil fan

technical field

The utility model relates to the field of air conditioning systems, in particular to a novel coil fan.

Background technique

The coil fan is one of the terminal devices of the air conditioning system. At present, the coil fan is composed of a volute and a fan blade. The coil fan drives the fan blades to rotate through the motor, and the blades in the fan blades force the gas to rotate to increase its energy. The gas is thrown around the fan blades under the action of the coil force. In the current coil fan, the rotor motor outside the volute is used. The rotor motor is fixed on the external motor bracket and connected to the fan blade by extending the motor shaft. The overall structure occupies a large space and needs to be improved urgently.

Contents of the invention

In order to solve the above problems, the purpose of this utility model is to provide a new type of coil fan. The new type of coil fan adopts a built-in drive motor, which greatly reduces the installation space required by the coil fan as a whole.

In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

A new coil fan, including a volute and a centrifugal vane; it is characterized in that: the first air inlet and the second air inlet are respectively opened on the two axial sides of the volute, and the first air inlet and the second air inlet The air outlets are axially corresponding; the end of the volute is provided with an air outlet, and the inside of the volute forms an air duct from the first air inlet, the second air inlet to the air outlet; the centrifugal fan blades are arranged between the first air inlet and the air outlet. Inside the volute between the second air inlets, the centrifugal blades include a base plate, and a plurality of first blades and a plurality of second blades respectively arranged on both axial ends of the base plate, a plurality of first blades and a plurality of second blades They are arranged at regular intervals along the circumferential edge of the end surface of the base plate; the base plate and a plurality of first blades form a first air cavity, and the base plate and a plurality of second blades form a second air cavity; the first centrifugal fan blades The air chamber is opposite to the first air inlet, and the second air chamber is opposite to the second air inlet; the first air chamber is provided with a motor bracket inside, and a driving motor is fixed on the motor bracket, and the output shaft of the driving motor is connected and fixed to the centrifugal fan. at the center of the leaf substrate.

Preferably, the motor support includes a disc body and a plurality of struts, the disc body is located in the first air cavity, the plurality of struts are arranged in a specification along the circumference of the disc body, and an air duct is formed between two adjacent struts; The support rod is a bending rod, the outer end of the support rod is fixed on the side wall of the volute at the edge of the first air inlet, and the outer end of the support rod is fixed on the disc body; the drive motor is fixed on the disc body. In this technical solution, the drive motor is installed in the first air cavity through the sunken motor bracket, and the air duct is formed between two adjacent poles so that the centrifugal fan blade can introduce air from the first air inlet when rotating, so that The first air chamber can also generate airflow as an auxiliary to compensate for the flow loss caused by the built-in motor.

Preferably, flanges are provided on both side walls of the air outlet at the end of the volute, and connecting holes are opened on the flanges.

The utility model adopts the above-mentioned technical scheme, and the technical scheme relates to a new type of coil fan. The first air inlet and the second air inlet are arranged on the two axial sides of the volute of the new type of coil fan. Inside the volute between the first air inlet and the second air inlet. The centrifugal fan blades are provided with a first air chamber and a second air chamber, the first air chamber is opposite to the first air inlet, the second air chamber is opposite to the second air inlet; and the inside of the first air chamber is installed through the motor bracket The drive motor, that is, the built-in drive motor, greatly reduces the installation space required by the coil fan as a whole.

Description of drawings

Fig. 1 is a three-dimensional structure schematic diagram of the present utility model.

Fig. 2 is a schematic view of the axial side of the coil fan.

Fig. 3 is a structural schematic diagram of the other axial side of the coil fan.

Detailed ways

Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in further detail.

A new coil fan as shown in FIGS. 1 to 3 includes a volute 1 and a centrifugal fan 2 . A first air inlet 11 and a second air inlet 12 are opened on both axial sides of the volute 1 respectively, and the first air inlet 11 and the second air inlet 12 are axially corresponding to each other. The end of the volute 1 is provided with an air outlet 13, and the inside of the volute 1 forms an air duct from the first air inlet 11, the second air inlet 12 to the air outlet 13; The edge 14 is provided with connecting holes on the flange 14 . The centrifugal fan 2 is arranged inside the volute 1 between the first air inlet 11 and the second air inlet 12, and the centrifugal fan 2 includes a base plate 21, and a plurality of first pieces respectively arranged on both ends of the base plate 21 in the axial direction. The blade 22 and the plurality of second blades 23 , the plurality of first blades 22 and the plurality of second blades 23 are all arranged at regular intervals along the circumferential edge of the end surface of the base plate 21 . A first air cavity is formed between the base plate 21 and the plurality of first blades 22 , and a second air cavity is formed between the base plate 21 and the plurality of second blades 23 . The first air chamber of the centrifugal blade 2 is opposite to the first air inlet 11 , and the second air chamber is opposite to the second air inlet 12 . A motor bracket 3 is arranged inside the first air cavity, and a driving motor 4 is fixed on the motor bracket 3 , and the output shaft of the driving motor 4 is connected and fixed at the center of the base plate 21 of the centrifugal fan blade 2 .

The motor bracket 3 includes a disc body 31 and a plurality of struts 32, the disc body 31 is located in the first air cavity, and the plurality of struts 32 are arranged according to the circumferential direction of the disc body 31, and two adjacent struts 32 form a Duct 33. The strut 32 is a bent rod, the outer end of the strut 32 is fixed on the side wall of the volute 1 at the edge of the first air inlet 11 , and the outer end of the strut 32 is fixed on the disc body 31 . The driving motor 4 is fixed on the disc body 31 . In this technical solution, the drive motor 4 is installed in the first air cavity through the sunken motor bracket 3, and the air duct 33 is formed between two adjacent poles 32 so that the centrifugal fan 2 can rotate from the first air cavity The tuyere 11 introduces air so that the first air chamber can also generate airflow, as an auxiliary to compensate for the flow loss caused by the built-in motor.

To sum up, the technical solution relates to a new type of coil fan. The first air inlet 11 and the second air inlet 12 are arranged on the two axial sides of the volute 1 of the new type of coil fan, and the centrifugal fan 2 is arranged on the Inside the volute 1 between the first air inlet 11 and the second air inlet 12 . The centrifugal blade 2 is provided with a first air chamber and a second air chamber, the first air chamber is opposite to the first air inlet 11 , and the second air chamber is opposite to the second air inlet 12 . The drive motor 4 is installed inside the first air cavity through the motor bracket 3, that is, the built-in drive motor 4 is used, which greatly reduces the installation space required by the coil fan as a whole.

Claims (3)

1. a kind of novel coil wind turbine, including spiral case and centrifugation blade；It is characterized in that：Divide on the axial two sides of the spiral case Do not offer the first air inlet and the second air inlet, the first air inlet and the second air inlet is axially opposing answers；The volute end Be equipped with air outlet, the first air inlet of spiral case Inner Constitution, the second air inlet to air outlet air duct；The centrifugation blade setting Inside spiral case between the first air inlet and the second air inlet, centrifugation blade includes substrate, and is separately positioned on substrate axis To the second blade of the first blade of polylith and polylith of both ends of the surface, the first blade of polylith and the second blade of polylith are along substrate end-face Circumferential edge regular gap is arranged；Constitute the first wind chamber between the first blade of substrate and polylith, substrate and the second blade of polylith it Between constitute the second wind chamber；First wind chamber of the centrifugation blade is opposite with the first air inlet, the second wind chamber and the second air inlet phase It is right；The first wind chamber is internally provided with electric machine support, and driving motor, the output axis connection of driving motor are fixed on electric machine support It is fixed at the substrate center of centrifugation blade.

2. a kind of novel coil wind turbine according to claim 1, it is characterised in that：The electric machine support includes disk body and more Root strut, disk body are in the first wind intracavitary, and more struts are laid out along disk body circumferential direction specification, and wind is constituted between adjacent two struts Road；The strut is bending bar, and the outer end of strut is fixed on the spiral case side wall at the first air inlet edge, the outer end of strut It is fixed on disk body；The driving motor is fixed on disk body.

3. a kind of novel coil wind turbine according to claim 1, it is characterised in that：The air outlet both sides of the volute end Wall is equipped with flange, and connecting hole is offered on flange.