CN215805397U

CN215805397U - Efficient axial flow air duct and warmer with same

Info

Publication number: CN215805397U
Application number: CN202122316739.1U
Authority: CN
Inventors: 周军枢; 张勇
Original assignee: Ningbo Baogong Electrical Appliance Co ltd
Current assignee: Ningbo Baogong Electrical Appliance Co ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-02-11
Anticipated expiration: 2031-09-24

Abstract

The utility model discloses a high-efficiency axial flow air duct which comprises an outer barrel and an inner barrel connected in the outer barrel, wherein a fluid channel is arranged between the outer barrel and the inner barrel, an air inlet and an air outlet are arranged at two ends of the outer barrel, and a plurality of flow increasing holes for increasing the air intake are arranged on the outer wall of the inner barrel close to the air inlet.

Description

Efficient axial flow air duct and warmer with same

Technical Field

The utility model relates to the technical field of heaters, in particular to a high-efficiency axial flow air duct and a heater with the same.

Background

At present, household electric heaters which can be selected by people in the market are various, wherein a fan heater is a popular heater. The warm air blower in the prior art is generally a forced convection type warmer, and adopts the design that a fan component is matched with a heating body. When the air heater is used, cold air flows in from the air inlet of the air heater and is blown out from the air outlet after being heated, and the heating speed is high because the air is forced to flow.

However, the air duct of the existing heater generally has the problems that the air inlet channel is single, the air inlet amount is limited, the air outlet efficiency of the air duct is reduced and the like, and after cold air enters from the air inlet channel, as the heater has the structural composition of the outer cylinder and the heat insulation cylinder, part of the cold air enters between the outer cylinder and the heat insulation cylinder for circulating heat dissipation, but the part of the cold air is only used for circulating heat dissipation and is finally directly discharged, so that the utilization rate of the part of the cold air is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of the prior art, and provides an efficient axial flow air duct, which has high utilization rate of air inlet quantity in the air duct, enables the air inlet quantity in the air duct to be larger, and improves the air inlet and outlet efficiency of a warmer.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

the utility model provides a high-efficient axial flow wind channel, includes outer barrel and connects the internal interior barrel of urceolus, fluid passage has between outer barrel and the interior barrel, the both ends of outer barrel have an air intake and air outlet, interior barrel is equipped with a plurality of flow increase holes that are used for increasing the intake on the outer wall that is close to the air intake.

As an improvement, the flow increasing holes are annularly arranged on the inner cylinder body, at least two rows of flow increasing holes are arranged, and the hole diameter of each row of flow increasing holes is the same.

In a further improvement, the diameter of the flow-increasing hole is set in the range of 20mm to 40 mm.

The improved heating tube is characterized in that a motor, a fan blade and a heating tube are sequentially arranged in the inner barrel along the air flowing direction, the motor is fixed on the inner wall of the inner barrel through a motor support, the motor is connected with the fan blade through a motor shaft, the head of the heating tube penetrates through the inner barrel, the heating tube is fixed on the inner barrel through a fixing piece at the head of the heating tube, and a fastener for fastening the heating tube is further arranged on the inner wall of the heating tube.

And the fan blades comprise a hub and a plurality of blades which are circumferentially and uniformly distributed on the peripheral wall of the hub, and the blades are provided with a plurality of sections of flow guide surfaces which enable the air quantity to be more gathered at the positions facing the air inlet.

And the blade is improved, at least one first reinforcing rib is arranged on each blade, and at least one second reinforcing rib extends towards the tail edge direction of each blade from the joint of each blade and the hub.

And the inner wall of the inner barrel is further provided with a fixing support for fixing the heating tube, the fixing support is connected with the fastener in a matching manner, the fixing support comprises at least two fixing support plates arranged on the inner wall of the inner barrel, each fixing support plate is provided with an assembly position for fixing the heating tube, and the outer ends of the fixing support plates are provided with fixing parts capable of being connected with the inner wall of the inner barrel.

The warmer comprises the high-efficiency axial flow air duct.

Compared with the prior art, the utility model has the advantages that: the air inlet and outlet structure of the warmer is reasonable in structural design, cold air can enter the air channel from the air inlet through the flow increasing holes formed in the inner cylinder body close to the air inlet when the warmer works, and meanwhile, part of the cold air entering the fluid channel can enter the air channel again through the flow increasing holes, so that the utilization rate of the air inlet quantity in the air channel is high, the air inlet quantity in the air channel is larger, the noise generated by the whole air channel is smaller by utilizing the design of the fan blades, and the air inlet efficiency and the air outlet efficiency of the warmer are improved.

Drawings

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

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a cross-sectional view of the present invention;

FIG. 4 is a schematic view of an exploded structure of the present invention;

FIG. 5 is an exploded view of the mounting bracket of the present invention;

FIG. 6 is a schematic view of a fan blade structure according to the present invention;

FIG. 7 is a schematic view illustrating the flow direction of the axial flow duct according to the present invention.

Reference numerals: 1. an outer cylinder; 2. an inner cylinder; 10. an air inlet; 11. an air outlet; 20. an flow increasing hole; 21. a motor; 22. a fan blade; 23. a heat generating tube; 24. fixing a bracket; 100. a fluid channel; 200. an axial flow duct; 210. a motor bracket; 211. bending the sheet; 212. a matching position; 220. a hub; 221. a blade; 222. a flow guide surface; 230. a fixing sheet; 231. a fastener; 240. fixing a support plate; 241. assembling positions; 242. a fixed part; 2210. a first reinforcing rib; 2211. and a second reinforcing rib.

Detailed Description

The utility model is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 7, the present invention provides a high-efficiency axial flow air duct, which includes an outer cylinder 1 and an inner cylinder 2 connected in the outer cylinder 1, a fluid passage 100 is provided between the outer cylinder 1 and the inner cylinder 2, an air inlet 10 and an air outlet 11 are provided at two ends of the outer cylinder 1, and a plurality of flow increasing holes 20 for increasing an air intake are provided on an outer wall of the inner cylinder 2 near the air inlet 10;

the inner wall of the outer cylinder body 1 is fixed with the inner cylinder body 2 through three support frames, so that the fluid channel 100 is formed between the outer cylinder body 1 and the inner cylinder body 2, the axial flow air channel 200 is formed in the inner cylinder body 2, cold air can conveniently pass through the fluid channel 100 and can radiate the shell, the cold air can enter the axial flow air channel 200 again through the flow increasing holes 20, the air inlet amount is increased, and the air circulation performance is enhanced;

this design is through including barrel 2 near the increase flow hole 20 of air intake 10 position design, can be at the room heater during operation, in cold wind can get into axial flow wind channel 200 from air intake 10, to the cold wind that gets into fluid passage 100, when can be to the shell cooling, also can have part through increase flow hole 20 get into the wind channel once more for the air inlet amount of wind utilization ratio in the axial flow wind channel 200 is high, and the intake in the wind channel is bigger, has promoted the air inlet and the air-out efficiency of room heater.

In this embodiment, the flow increasing holes 20 are annularly arranged on the inner cylinder 2, at least two rows of flow increasing holes 20 are arranged, and the aperture of each row of flow increasing holes 20 is the same; the flow increasing holes 20 are provided with two rows of equal-distance rings arranged on the inner cylinder 2, and the positions close to the air inlets 10 can effectively match the air inlet volume of the air inlets 10 in the operation process of the warmer, so that the air inlet volume entering the axial flow air channel 200 is obviously improved, and the cooling of the shell is not influenced.

In this embodiment, the aperture range of the flow increasing hole 20 is set between 20mm and 40mm, and preferably, the aperture of the flow increasing hole 20 is set at 30mm, so that the optimal air intake requirement can be realized, when cold air enters the axial flow air duct 200 through the flow increasing hole 20, a larger air volume can be achieved, and the use performance of the warmer is improved.

In this embodiment, a motor 21, a fan blade 22 and a heating tube 23 are further sequentially arranged in the inner cylinder 2 along the air flowing direction, the motor 21 is fixed on the inner wall of the inner cylinder 2 through a motor bracket 210, the motor 21 is connected with the fan blade 22 through a motor 21 shaft, the head of the heating tube 23 penetrates through the inner cylinder 2 and is fixed on the inner cylinder 2 through a fixing sheet 230 at the head of the heating tube 23, and a fastening piece 231 for fastening the heating tube 23 is further arranged on the inner wall of the heating tube 23;

the motor support 210 is horizontally arranged in the inner cylinder 2, meanwhile, the two sides of the motor support are attached to the inner wall of the inner cylinder 2 through the bending pieces 211, the bending pieces 211 are fixed on the inner wall of the inner cylinder 2 through screws, the middle part of the motor support 210 is provided with a matching position 212 for fixing the motor 21, and the matching position 212 can be a hole or other fixing positions, so that the mounting stability of the motor 21 is effectively enhanced; the head of heating tube 23 has a stator 230, can pass through the outer wall of screw locking stator 230 with interior barrel 2 to guarantee the fixed requirement of heating tube 23, and because heating tube 23 has great activity easily under the influence of wind-force after the assembly, consequently through setting up the stable heating tube 23 of fastener 231 in heating tube 23, utilize the connection between fastener 231 and the fixed bolster 24, realize forming relative fixed mode between the heating tube 23 is inside and outside, promote the stability of heating tube 23.

In this embodiment, the fan blade 22 includes a hub 220 and a plurality of blades 221 circumferentially and uniformly distributed on the outer circumferential wall of the hub 220, and the blades 221 have a plurality of flow guide surfaces 222 at positions facing the air inlet 10, so that the air volume is more concentrated; through the multistage water conservancy diversion face 222 on every blade 221 for the amount of wind can be concentrated more, can not only the noise reduction, can promote the polymerization of air-out simultaneously, realizes bigger amount of wind, has promoted fan blade 22's practicality.

In this embodiment, each blade 221 is provided with at least one first reinforcing rib 2210, and each blade 221 extends from the joint with the hub 220 toward the trailing edge of the blade 221 with at least one second reinforcing rib 2211; each blade 221 sets a first reinforcing rib 2210 on the flow guide surface 222, the first reinforcing rib 2210 is set along the outer edge of the blade 221, because the pressure applied on the flow guide surface 222 by the blade 221 is large, the structural strength of the blade 221 can be enhanced by setting the first reinforcing rib 2210, and a second reinforcing rib 2211 extends at the joint of each blade 221 and the hub 220, the structural strength of the blade 221 close to the hub 220 can be enhanced, the setting of the first reinforcing rib 2210 and the second reinforcing rib 2211 on the blade 221 ensures that the large-angle blade 221 has sufficient strength to the maximum extent, and the deformation is avoided.

In this embodiment, the inner wall of the inner cylinder 2 is further provided with a fixing support 24 for fixing the heating tube 23, the fixing support 24 is connected with a fastener 231 in a matching manner, the fixing support 24 includes at least two fixing support plates 240 installed on the inner wall of the inner cylinder 2, each fixing support plate 240 is provided with an assembly position 241 for fixing the heating tube 23, and the outer end of each fixing support plate 240 is provided with a fixing portion 242 capable of being connected with the inner wall of the inner cylinder 2;

the fixing supports 24 are used for limiting the position of an assembling position 241 outside the heating tube 23, any one fixing support 240 in the fixing supports 240 is in a V-shaped design and is provided with an opening, the opening angle is an obtuse angle, and the fixing supports are matched with the connection of the other fixing support 240 and are uniformly distributed outside the heating tube 23 at equal angles to form the distribution and fixation outside the heating tube 23, and meanwhile, the assembling position 241 on each fixing support 240 is utilized to enable the heating tube 23 to be clamped into the assembling position 241, so that the use stability of the heating tube 23 is improved; the assembling position 241 on the fixing support 240 is preferably designed to be open, and is matched with the pipe diameter of the heating pipe 23, so that the tightness for fixing each heating pipe 23 is improved.

In this embodiment, a temperature controller for measuring the temperature of the air outlet 10 is fixed at the position of the air outlet 10 of the outer cylinder 1, the temperature controller can detect the temperature of the air outlet 10 in real time, and when the temperature is lower than the set temperature, the power of the motor 21 is controlled and adjusted by the controller according to the set temperature required to be reached by the air outlet 10, so as to achieve the purpose of increasing the temperature of the air outlet 10, and when the temperature is higher than the set temperature, the power of the motor 21 is reduced, and the air outlet performance is improved.

A warmer comprises the high-efficiency axial flow air duct 200; the warmer using the high-efficiency axial flow air duct 200 can effectively enhance the air quantity in the air duct and improve the utilization rate of the air inlet quantity, thereby ensuring the large air quantity of the warmer and improving the heat dissipation efficiency.

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.

Claims

1. An efficient axial flow air duct is characterized in that: including outer barrel and connect the internal interior barrel in urceolus, fluid passage has between outer barrel and the interior barrel, the both ends of outer barrel have an air intake and air outlet, interior barrel is equipped with a plurality of flow increase holes that are used for increasing the intake on the outer wall that is close to the air intake.

2. The efficient axial flow duct of claim 1, wherein: the flow increasing holes are annularly arranged on the inner cylinder body, at least two rows of flow increasing holes are arranged, and the aperture of each row of flow increasing holes is the same.

3. The efficient axial flow duct according to claim 1 or 2, wherein: the aperture range of the flow increasing holes is set between 20mm and 40 mm.

4. The efficient axial flow duct of claim 1, wherein: the inner barrel body is also sequentially provided with a motor, a fan blade and a heating tube along the air flowing direction, the motor is fixed on the inner wall of the inner barrel body through a motor support, the motor is connected with the fan blade through a motor shaft, the head of the heating tube penetrates through the inner barrel body and is fixed on the inner barrel body through a fixing piece at the head of the heating tube, and the inner wall of the heating tube is also provided with a fastener for fastening the heating tube.

5. The efficient axial flow duct of claim 4, wherein: the fan blade includes wheel hub and a plurality of blades of circumference equipartition on the wheel hub periphery wall, the blade has the guide flow face that the multistage makes the amount of wind gather more in the position towards the air intake.

6. The efficient axial flow duct of claim 4, wherein: each blade is provided with at least one first reinforcing rib, and each blade extends towards the direction of the tail edge of the blade at the joint of the blade and the hub to form at least one second reinforcing rib.

7. The efficient axial flow duct of claim 4, wherein: the inner wall of the inner barrel is further provided with a fixing support used for fixing the heating tube, the fixing support is connected with the fastener in a matched mode, the fixing support comprises at least two fixing support plates installed on the inner wall of the inner barrel, each fixing support plate is provided with an assembling position used for fixing the heating tube, and the outer ends of the fixing support plates are provided with fixing portions capable of being connected with the inner wall of the inner barrel.

8. The efficient axial flow duct of claim 1, wherein: and a temperature controller for measuring the temperature of the air outlet is fixed at the position of the air outlet of the outer cylinder body.

9. A warmer, its characterized in that: comprising a high efficiency axial flow air duct according to any one of claims 1 to 8.