Novel pipeline fan

Abstract

The utility model relates to the technical field of draught fans, and discloses a novel pipeline draught fan which comprises an installation base, a draught fan shell, a driving motor, fan blades, an air inlet net and a controller, the draught fan shell is installed on the installation base, the driving motor is installed in the draught fan shell, the fan blades are installed at the driving end of the driving motor, and the control end of the controller is electrically connected with the control end of the driving motor. An air inlet net is mounted on an air inlet of the fan shell; the fan shell comprises an outer shell and an inner shell, the inner shell is installed on the inner side of the outer shell, and the inner shell is arranged at an air inlet of the outer shell. The pipeline fan is reasonably designed, the mounting base, the fan shell, the driving motor, the fan blades, the air inlet net and the controller are adopted, and the fan shell with the outer shell and the inner shell is matched, so that air exchange efficiency can be improved, energy consumption can be reduced, potential safety hazards can be avoided, and the pipeline fan can be used for a long time. The trumpet-shaped inner shell is matched with the fan blades, air flow can be gathered and then diverged and transmitted, and therefore the wind force is enhanced, and then the wind blowing space is enlarged.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, in particular to a novel pipeline fan. Background Art

[0002] As we all know, duct fans are those with the selected control parameters of air volume, total pressure, efficiency, noise, motor power, etc., also known as duct ventilators. Fans for different purposes are selected according to the physical and chemical properties of the gas being transported. In industry and life, people often use duct fans for air exchange, especially in closed rooms or greenhouses, where duct fans are needed for convection exchange with the outside air. However, the existing duct fans on the market only have a single fan blade, which reduces the efficiency of air exchange, affects the overall exchange efficiency, and increases energy loss. In addition, the safety of duct fans on the market is weak, and some duct fans do not have a protective net, which can easily cause safety hazards. In addition, the mechanical strength of the duct fan itself is not good, and it is very easy to deform after long-term use.

[0003] Therefore, in view of the above problems, the existing duct fan technology needs to be further improved. Utility Model Content

[0004] The purpose of the utility model is to overcome the problems of existing duct fans, such as single blades, high energy consumption, low air exchange efficiency, potential safety hazards and short durability. By rationalizing the design of the duct fan, using a mounting base, a fan casing, a drive motor, blades, an air inlet net and a controller, and then matching the fan casing with an outer shell and an inner shell, it is possible to improve the air exchange efficiency, reduce energy consumption, avoid potential safety hazards and ensure long-term use.

[0005] The technical solution of the utility model is as follows:

[0006] A novel duct fan, comprising: a mounting base, a fan housing, a drive motor, a fan blade, an air inlet net and a controller, wherein the fan housing is mounted on the mounting base, the drive motor is mounted in the fan housing, the fan blade is mounted on the drive end of the drive motor, the control end of the controller is electrically connected to the control end of the drive motor, and the air inlet net is mounted on the air inlet of the fan housing;

[0007] The fan housing includes an outer housing and an inner housing, the inner housing is installed on the inner side of the outer housing, and the inner housing is arranged at the air inlet of the outer housing, that is, the inner housing is arranged between the fan blades and the air inlet net.

[0008] Furthermore, an air outlet net is installed at the air outlet end of the fan housing.

[0009] Furthermore, the meshes of the air inlet net are hexagonal meshes, that is, a hexagonal arrangement presenting a honeycomb shape.

[0010] Furthermore, the shell is a cylindrical shell.

[0011] Furthermore, reinforcing ribs are provided on the outer surface of the shell.

[0012] Furthermore, the outer surface of the shell is provided with reinforcing ribs symmetrical about its center line.

[0013] Furthermore, the inner shell is a trumpet-shaped inner shell.

[0014] Furthermore, the inner shell is selected to have trumpet-shaped inner shells at both ends, and they are respectively a first trumpet inner shell and a second trumpet inner shell, and the second trumpet inner shell is arranged toward the air inlet mesh side.

[0015] Furthermore, the size of the first speaker inner shell is smaller than the size of the second speaker inner shell.

[0016] Furthermore, a height of the first speaker inner shell is smaller than a height of the second speaker inner shell.

[0017] Furthermore, the fan blades include a rear blade bracket and a front blade, the rear blade bracket is installed on the inner side of the outer shell, the drive motor is installed on the rear blade bracket, the front blade is installed on the drive end of the drive motor, and the front blade is arranged between the rear blade bracket and the air inlet net.

[0018] Furthermore, the rear blade support is a cylindrical fan blade with blades.

[0019] Furthermore, the number of blades on the rear leaf support is an odd number.

[0020] Furthermore, the front fan blade is a frustoconical fan blade with blades.

[0021] Furthermore, the number of blades on the front fan blade is an odd number.

[0022] Furthermore, the rear blade bracket and the front fan blade are both made of plastic.

[0023] Furthermore, the rear blade bracket and the front fan blade are both made of plastic materials such as PC or PE.

[0024] Furthermore, the mounting base and the housing are both made of metal.

[0025] Beneficial Effects

[0026] The utility model rationalizes the design of the duct fan, adopts a mounting base, a fan housing, a driving motor, a fan blade, an air inlet net and a controller, and matches the fan housing with an outer shell and an inner shell, so as to improve the air exchange efficiency, reduce energy consumption, avoid potential safety hazards and achieve long-term use. The cooperation of the trumpet-shaped inner shell and the fan blade can realize the convergence of the air flow and then the divergence transmission, so as to increase the wind force and then increase the wind blowing space; the combination of the front fan blade and the rear blade bracket can realize the effective convergence of the air after entering, so as to increase the wind force and then assist the transmission of the air flow; the cooperation of the air inlet net, the air outlet net and the outer shell can improve the safety of the fan, and the air inlet net and the air outlet net are screw-connected to the outer shell, which is convenient for disassembly and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The utility model is a structural schematic diagram of a novel duct fan.

[0028] Figure 2 This is a schematic structural diagram of a novel duct fan of the utility model from another perspective.

[0029] Figure 3 The utility model is a schematic diagram of the exploded structure of a novel duct fan.

[0030] Figure 4 The utility model is a schematic diagram of the structure of a fan casing of a novel duct fan.

[0031] Figure 5 This is a schematic diagram of the fan blade structure of a novel duct fan of the utility model.

[0032] Figure 6 This is a schematic diagram of the inner shell structure of a novel duct fan of the utility model.

[0033] Figure 7 The utility model is a schematic diagram of the cross-sectional structure of the inner shell of a novel duct fan.

[0034] Figure 8 This is a schematic diagram of the cross-sectional structure of a fan blade of a novel duct fan of the utility model.

[0035] Figure numbers: 01, mounting base; 02, air inlet net; 03, fan casing; 11, reinforcement plate; 12, groove; 31, reinforcement rib; 04, controller interface; 05, power cord; 06, fan blades; 61, rear blade bracket; 62, front fan blades; 07, drive motor; 08, inner casing; 81, first speaker inner casing; 82, transition speaker inner casing; 83, second speaker inner casing. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] See also Figure 1-Figure 8 As shown, the utility model provides a novel duct fan, which includes: a mounting base 01, a fan casing 03, a drive motor 07, a fan blade 06, an air inlet net 02 and a controller, the fan casing 03 is mounted on the mounting base 01, the drive motor 07 is mounted in the fan casing 03, the drive end of the drive motor 07 is mounted with a fan blade 06, the control end of the controller is electrically connected to the control end of the drive motor 07, and the air inlet net 02 is mounted on the air inlet of the fan casing 03; the power supply end of the controller is electrically connected to the power line 05, and the control end of the controller is electrically connected to the drive motor 07 through the controller interface 04;

[0038] The fan casing 03 includes an outer casing and an inner casing 08, the inner casing 08 is installed on the inner side of the outer casing, and the inner casing 08 is arranged at the air inlet of the outer casing; that is: the inner casing 08 is arranged between the fan blades 06 and the air inlet net 02; the air inlet net is installed at the air inlet end of the fan casing 03, and the mesh of the air inlet net 02 is selected as a hexagonal mesh, that is, a hexagonal arrangement presenting a honeycomb shape; the outer casing is selected as a circular tubular outer casing, and the outer surface of the outer casing is provided with reinforcing ribs 31 symmetrical with its center line, and the inner casing 08 is selected as a trumpet-shaped inner casing 08, and the inner casing 08 is installed On the inner side of the outer shell, the inner shell 08 is selected with both ends being horn-shaped, and they are respectively a first horn inner shell 81 and a second horn inner shell 83, the second horn inner shell 83 is arranged toward the side of the air inlet net 02, the height of the first horn inner shell 81 is less than the height of the second horn inner shell 83, and there is a transition horn inner shell 82 on the first horn inner shell 81, the first horn inner shell 81 is connected to the second horn inner shell 83 through the transition horn inner shell 82, and the size of the first horn inner shell 81 is greater than the size of the transition horn inner shell 82;

[0039] The bottom of the mounting seat 01 is provided with a reinforcing plate 11 and a groove 12. The reinforcing plate 11 is arranged in the middle of the mounting seat 01, and the grooves 12 are arranged on both sides thereof. Such an arrangement can strengthen the mounting seat and also achieve a vibration reduction effect, etc.;

[0040] Among them, the fan blades 06 include a rear blade bracket 61 and a front blade 62, the rear blade bracket 61 is installed on the inner side of the outer shell, the rear blade bracket 61 is installed with a driving motor 07, the front blade 62 is installed on the driving end of the driving motor 07, and the front blade 62 is arranged between the rear blade bracket 61 and the air inlet net 02; the rear blade bracket 61 selects a cylindrical blade with blades, and the number of blades on the rear blade bracket 61 is an odd number; the front blade 62 selects a truncated cone blade with blades, and the number of blades on the front blade 62 is an odd number; the rear blade bracket 61 and the front blade 62 are both made of plastic material, at this time, the blades of the rear blade bracket 61 and the front blade 62 adopt a blade combination with different distributions.

[0041] Specific implementation methods of the utility model: After the duct fan is assembled, the power plug is turned on, and the controller is also powered on, thereby controlling the operation of the drive motor to drive the rotation of the front fan blades. The front fan blades will allow external air to enter the inner shell through the air inlet net, and then gather the wind and disperse the wind, and transmit it to the rear blade bracket through the front fan blades. After the blades of the rear blade bracket guide the diversion, the air flow is transmitted to the air outlet, and then air is supplied to the outside.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of duct fan, It is characterized in that The duct fan comprises: a mounting base, a fan housing, a driving motor, a fan blade, an air inlet net and a controller, the fan housing is mounted on the mounting base, the driving motor is mounted in the fan housing, the fan blade is mounted on the driving end of the driving motor, the control end of the controller is electrically connected to the control end of the driving motor, and the air inlet net is mounted on the air inlet of the fan housing; Wherein, the fan casing comprises an outer casing and an inner casing, the inner casing is installed on the inner side of the outer casing, and the inner casing is arranged at the air inlet of the outer casing.

2. According to the novel duct fan of claim 1, It is characterized in that The shell is a circular tubular shell.

3. According to the new type of duct fan described in claim 2, It is characterized in that Reinforcing ribs are arranged on the outer surface of the shell.

4. According to the novel duct fan of claim 1, It is characterized in that The inner shell is a trumpet-shaped inner shell.

5. According to the novel duct fan of claim 4, It is characterized in that The inner shell is selected to have trumpet-shaped inner shells at both ends, and are respectively a first trumpet inner shell and a second trumpet inner shell, and the second trumpet inner shell is arranged toward the air inlet net side.

6. According to the novel duct fan of claim 5, It is characterized in that The size of the first speaker inner shell is smaller than that of the second speaker inner shell.

7. According to the novel duct fan of claim 1, It is characterized in that The fan blades include a rear blade bracket and a front blade, the rear blade bracket is installed on the inner side of the shell, the drive motor is installed on the rear blade bracket, the front blade is installed on the drive end of the drive motor, and the front blade is arranged between the rear blade bracket and the air inlet net.

8. According to the novel duct fan of claim 7, It is characterized in that The rear blade support is a cylindrical fan blade with blades.

9. According to the novel duct fan of claim 7, It is characterized in that The front fan blade is a frustoconical fan blade with blades.

10. A novel duct fan according to claim 7, It is characterized in that The rear blade bracket and the front fan blade are both made of plastic.

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