CN210397175U

CN210397175U - Air filtering and pressurizing device of fuel air heater for automobile

Info

Publication number: CN210397175U
Application number: CN201920683861.2U
Authority: CN
Inventors: 沈正杰; 汤巧红
Original assignee: Nanjiang Beidu Electric Co ltd
Current assignee: Nanjiang Beidu Electric Co ltd
Priority date: 2019-05-14
Filing date: 2019-05-14
Publication date: 2020-04-24
Anticipated expiration: 2029-05-14

Abstract

An air filtering and pressurizing device of a fuel air heater for an automobile comprises a shell and an axial flow fan arranged in the shell, one side of the shell is connected with the rear cover through threads, the other side of the shell is an air outlet end, the rear cover is provided with an air inlet, a filter disc is arranged in the shell and is arranged between the axial flow fan and the air inlet, the air outlet end is connected with the air inlet of the heater through a rubber hose, the axial flow fan comprises a motor bracket, a motor, a wind wheel and a motor lead wire for controlling the rotation of the motor, the motor lead is connected with the main circuit board of the heater controller, the input voltage of the axial flow fan is properly adjusted through the control circuit, the device has simple structure and low cost, has obvious effects on optimizing the air quality of the heater, improving the product performance and the service life of the heater and the like, and meets the market demand.

Description

Air filtering and pressurizing device of fuel air heater for automobile

Technical Field

The utility model relates to the technical field of automobiles, concretely relates to fuel air heater filtration supercharging device for car.

Background

The fuel oil air heater for the automobile is generally provided with an air filter to prevent dust and particles from entering a combustion chamber of the heater to influence the performance of a product, and the heater can not work normally even be damaged to be incapable of being used continuously in severe cases.

The existing product has structural design: the outside air flows into the combustion chamber of the heater through the sponge material in the filtering device to provide the required oxygen for the combustion chamber. The technical problem of the existing design is that: the density of the sponge material is too low, the filtering effect is poor, the combustion of the combustion chamber is insufficient, carbon deposition on the inner wall of the combustion chamber is easily formed, the combustion quality is reduced, and the service life is prolonged. If the method for increasing the density of the sponge material is adopted to overcome the defects, the combustion effect is also influenced by insufficient oxygen supply of the combustion chamber caused by the reduction of the air intake.

Therefore, the above-mentioned problems are problems that should be considered and solved in the air filtering process of the air heater.

SUMMERY OF THE UTILITY MODEL

To the problem that exists, the utility model provides an overcome defect among the prior art, rational in infrastructure's a fuel air heater air filter supercharging device for car.

The technical solution of the utility model is that: the air filtering and pressurizing device for the automobile fuel air heater comprises a shell and an axial flow fan arranged inside the shell, wherein one side of the shell is connected with a rear cover through threads, the other side of the shell is an air outlet end, an air inlet is formed in the rear cover, a filter disc is arranged inside the shell and is arranged between the axial flow fan and the air inlet, the air outlet end is connected with the air inlet of the heater through a rubber hose, the axial flow fan comprises a motor support, a motor, a wind wheel and a motor lead wire for controlling the motor to rotate, the motor lead wire is connected with a main circuit board of a heater controller, and the input voltage of the axial flow fan is properly adjusted through a control circuit.

The utility model discloses a further improvement lies in: the wind wheel is installed on a rotor shaft of the motor, a plurality of fan blades are arranged on the wind wheel, folded pieces are arranged at the edges of the outer ends of the fan blades, the edges of the rear ends of the fan blades are in a sawtooth shape, and the folded pieces and the fan blades are integrally formed.

The utility model discloses a further improvement lies in: the saw-tooth shape is a plurality of continuous triangular saw-teeth or trapezoidal saw-teeth.

The utility model discloses a further improvement lies in: the periphery of back lid extends outward and is equipped with the internal thread, the casing with the junction of back lid is equipped with the external screw thread.

The utility model discloses a further improvement lies in: the bore of air-out end is less than the casing internal diameter, the air-out end with be equipped with the changeover portion between the casing, make the air-out end is hourglass hopper-shaped.

The utility model discloses a further improvement lies in: the filter disc is of a detachable structure, and the filter disc is clamped between the shell and the rear cover.

The utility model provides a fuel air heater air filtration supercharging device for automobile, its casing air-out one end is connected with heater air intake through the rubber hose and forms the wind channel, and the other end is connected with the back lid through the helicitic texture, installs the axial fan in the casing, introduces the outside air into the casing through the filter disc when the fan operates, and send into the heater air intake through the wind channel after the high-speed running wind wheel pressurizes the air; the motor lead of the axial flow fan is connected with the main circuit board of the heater controller, and the input voltage of the fan can be properly adjusted through the control circuit so as to meet the oxygen supply requirement of the combustion chamber; the filter disc is detachably arranged in the shell, and the filter disc can be cleaned or replaced by loosening the rear cover; the end edges of the fan blades are provided with the folding pieces, so that wind can be prevented from leaking from the end edges of the fan blades, side wind leakage is prevented, the flow of wind on the front side of the axial flow fan is increased, the efficiency of the axial flow fan is improved, the rear edges of the fan blades are arranged in a tooth shape, when the wind wheel rotates, the wind flows out from the rear edges of the fan blades, the effective contact length of the wind wheel and the wind can be increased, and the noise is reduced.

The utility model has the advantages that: the device simple structure for car fuel air heater is to introducing the filtration of outside air dust thing, in order to improve the quality and the combustion effect that get into the heater air, increases heater life, when improving the filtration quality, guarantees the oxygen suppliment ability of heater combustion chamber, and its low cost is obvious to optimizing heater air quality, improving heater product property ability and aspect effect such as life, accords with market demand.

Drawings

FIG. 1 is a schematic structural diagram of the device of the present invention;

fig. 2 is a schematic structural view of the wind wheel of the present invention;

FIG. 3 is a schematic view of the connection between the housing and the rear cover and the filter disc of the present invention;

wherein: 1-shell, 2-axial flow fan, 3-rear cover, 4-air inlet, 5-filter disc, 6-rubber hose, 7-heater air inlet, 8-motor bracket, 9-motor, 10-wind wheel, 11-fan blade, 12-folded piece, 13-internal thread, 14-external thread, 15-air outlet end, 16-transition section, 17-motor lead and 18-rear end edge.

Detailed Description

In order to deepen the understanding of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and embodiments, which are only used for explaining the present invention and are not limited to the protection scope of the present invention.

As shown in fig. 1, the air filtering and pressurizing device for the fuel air heater for the automobile provided by the embodiment includes a housing 1 and an axial flow fan 2 disposed inside the housing 1, one side of the housing 1 is connected with a rear cover 3 through a thread, the other side of the housing 1 is an air outlet end 15, an air inlet 4 is disposed on the rear cover 3, a filter sheet 5 is disposed inside the housing 1, the filter sheet 5 is disposed between the axial flow fan 2 and the air inlet 4, the air outlet end is connected with a heater air inlet 7 through a rubber hose 6, the axial flow fan 2 includes a motor support 8, a motor 9, a wind wheel 10 and a motor lead 17 for controlling the rotation of the motor 9, the motor lead 17 is connected with a main circuit board of a heater controller, and the input voltage of the axial flow fan 2 is appropriately adjusted through a control circuit.

The wind wheel 10 is installed on a rotor shaft of the motor 9, the wind wheel 10 is provided with a plurality of fan blades 11, upward folding pieces 12 are arranged at the outer end edges of the fan blades 11, the angle between the folding pieces 12 and the fan blades 11 is larger than or equal to 90 degrees, the rear end edges 18 of the fan blades 11 are in a plurality of continuous triangular saw-tooth shapes, and the folding pieces 12 and the fan blades 11 are integrally formed as shown in fig. 2.

The peripheral of back lid 3 is extended its inner peripheral face and is equipped with internal thread 13, its periphery in casing 1 outer end is equipped with external screw thread 14, back lid 3 with casing 1 connects through internal and external screw thread locking, filter 5 is detachable construction, filter 5 presss from both sides and establishes between casing 1 and back lid 3, fixes through internal and external screw thread locking, as figure 3.

The bore of air-out end is less than 1 internal diameter of casing, air-out end 15 with be equipped with changeover portion 16 between the casing 1, make air-out end 15 is hourglass hopper-shaped.

According to the air filtering and pressurizing device for the automobile fuel air heater, one end of a shell 1 is an air outlet end and is connected with an air inlet 7 of the heater through a rubber hose 6 to form an air channel, the other end of the shell 1 is connected with a rear cover 3 through a threaded structure, an axial flow fan is installed in the shell 1 through a motor support 8, external air is introduced into the shell 1 through a filter 5 when the fan operates, and a wind wheel 10 which operates at a high speed drives a fan blade 11 to pressurize the air and then sends the air into the air inlet 7 of the heater through the air channel; a motor lead 17 of the axial flow fan is connected with a main circuit board of a heater controller, and the input voltage of the fan can be properly adjusted through a control circuit so as to meet the oxygen supply requirement of a combustion chamber; the filter disc 5 is detachably arranged in the shell 1, the inner diameter of the filter disc 5 is consistent with the outer diameter of the end part of the shell 1, and the filter disc 5 can be cleaned or replaced by loosening the rear cover 3; the end edge of the fan blade 11 is provided with the folding piece 12 which can prevent wind from leaking from the end edge of the fan blade 11 and prevent side wind from leaking, so that the flow of the wind on the front side of the axial flow fan is increased, the efficiency of the axial flow fan is improved, the rear edge of the fan blade is arranged into a tooth shape, when the wind wheel rotates, the wind flows out from the rear edge of the fan blade 11, the effective contact length of the wind wheel and the wind can be increased, and the noise is reduced.

The beneficial effect of this embodiment is: the device simple structure for car fuel air heater is to introducing the filtration of outside air dust thing, in order to improve the quality and the combustion effect that get into the heater air, increases heater life, when improving the filtration quality, guarantees the oxygen suppliment ability of heater combustion chamber, and its low cost is obvious to optimizing heater air quality, improving heater product property ability and aspect effect such as life, accords with market demand.

It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the above embodiments and the utility model only describe the principle of the present invention without departing from the spirit and scope of the present invention, the present invention can also have various changes and improvements, and these changes and improvements all fall into the scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a fuel air heater air filter supercharging device for car which characterized in that: the axial flow fan comprises a shell and an axial flow fan arranged inside the shell, wherein one side of the shell is connected with a rear cover through threads, the other side of the shell is an air outlet end, an air inlet is formed in the rear cover, a filter disc is arranged inside the shell and arranged between the axial flow fan and the air inlet, the air outlet end is connected with the air inlet of a heater through a rubber hose, the axial flow fan comprises a motor support, a motor, a wind wheel and a motor lead wire for controlling the motor to rotate, the motor lead wire is connected with a main circuit board of a heater controller, and the input voltage of the axial flow fan is properly adjusted through a control circuit.

2. The fuel air heater air filtering and pressurizing device for the automobile as claimed in claim 1, wherein: the wind wheel is installed on a rotor shaft of the motor, a plurality of fan blades are arranged on the wind wheel, folded pieces are arranged at the edges of the outer ends of the fan blades, the edges of the rear ends of the fan blades are in a sawtooth shape, and the folded pieces and the fan blades are integrally formed.

3. The fuel air heater air filtering and pressurizing device for the automobile as claimed in claim 2, characterized in that: the saw-tooth shape is a plurality of continuous triangular saw-teeth or trapezoidal saw-teeth.

4. The fuel air heater air filtering and pressurizing device for the automobile as claimed in claim 1, wherein: the periphery of back lid extends outward and is equipped with the internal thread, the casing with the junction of back lid is equipped with the external screw thread.

5. The fuel air heater air filtering and pressurizing device for the automobile as claimed in claim 1, wherein: the bore of air-out end is less than the casing internal diameter, the air-out end with be equipped with the changeover portion between the casing, make the air-out end is hourglass hopper-shaped.

6. The fuel air heater air filtering and pressurizing device for the automobile as claimed in claim 1, wherein: the filter disc is of a detachable structure, and the filter disc is clamped between the shell and the rear cover.