WO2014012470A1

WO2014012470A1 - Range hood ventilation module and assembly method thereof

Info

Publication number: WO2014012470A1
Application number: PCT/CN2013/079370
Authority: WO
Inventors: 刘海涛
Original assignee: 佛山市顺德区合捷电器实业有限公司
Priority date: 2012-07-18
Filing date: 2013-07-15
Publication date: 2014-01-23
Also published as: CN103574717A

Abstract

A range hood ventilation module and assembly method thereof, the module comprising a primary tube (1), and an auxiliary tube (2) both made of integrally spun tubes; the auxiliary tube (2) is provided with an oil screen (22) in the front, and a connecting tube (21) in the back mated with the inner diameter of the primary tube (1); after an axial fan is installed in the primary tube (1), the primary tube is abutted with the auxiliary tube (2) to form the ventilation module. The assembly method of the ventilation module comprises: after installing a fixing bracket on the range hood ventilation module, the ventilation module is disposed in a smoke collection box (6) at the top of the range hood (5), and is connected to the smoke collection box (6) via the fixing bracket. The primary tube (1) and the auxiliary tube (2), being made by spinning a tube to form a cylinder, therefore have no seams or welded spots on the outer side. By installing an axial fan in the cylindrical range hood, oil smoke is directly discharged after passing through the fan. With an unobstructed ducts, the present invention improves fan efficiency, and reduces working noise and energy consumption.

Description

Range hood exhaust module and assembly method thereof

Technical field

[0001] The present invention relates to a range hood, and more particularly to a range hood exhaust module and an assembly method thereof. Background technique

[0002] At present, the range hoods on the market (such as European-style range hoods) often require a small size of the box due to the appearance requirements, resulting in a single form of the bellows system, most of which are placed in a square box body with a centrifugal fan system. The air inlet of the centrifugal fan has a certain angle with the air inlet of the box, and the angle is generally 90 degrees. Therefore, such a bellows system mainly has the following two defects: First, since the outer cover of the box is provided with a decorative cover, After the installation of the hood, the impeller cannot be removed and washed. After a long time, the impeller will accumulate a large amount of grease, which will result in a decrease in the air performance of the impeller, and will also damage the dynamic balance of the impeller and cause vibration noise.

[0003] Secondly, the soot passage from the air inlet of the box to the air inlet of the fan is complicated, and the flow of flue gas from the air inlet of the box to the inlet of the fan is bound to generate a large amount of flow and vortex, and the loss of smoking power is serious. This results in greater noise and lower exhaust efficiency.

[0004] Therefore, Chinese Patent Publication No. 200982317Y discloses a small-sized top suction fan having a volute, an impeller and a motor, and the volute includes a lower casing, an upper casing and a joint thereof. The annular intermediate casing has an air inlet and an air outlet on the volute, an air outlet passage between the air outlet and the inner cavity of the volute, and a wind guide ring is installed at the air inlet, wherein: the air outlet is The channel is twisted upwards while spiraling upward. It is said that the structure breaks through the length limitation of the top suction type volute structure, so that the length L can be less than 400 mm, which is less than the length dimension of the conventional top suction type volute, and the air volume, wind pressure and The noise reaches the specified value, which can well solve the problem that the small tank hood impeller is difficult to remove and wash. However, the outlet passage is twisted upward while spiraling upward. Actual tests show that this structure will cause the fan outlet to flow. The loss is large, which seriously affects the efficiency of exhausting smoke, and also increases the aerodynamic noise. Summary of the invention

[0005] The object of the present invention is to provide a hood exhaust module with simple and reasonable structure, convenient production and processing, low noise, convenient cleaning and high smoke exhausting efficiency, beautiful appearance and fashion, and can be used with all existing range hoods. Assembly method.

[0006] The present invention is implemented in the following manner: A range hood exhausting module, characterized in that: it comprises a main pipe and a secondary pipe which are integrally spun from a pipe, and the front end of the auxiliary pipe is provided with an oil filter cover. The rear end is provided with a connecting pipe matched with the inner diameter of the main pipe, and the axial fan is installed in the main pipe to be connected with the auxiliary pipe to form a drafting module.

[0007] After the auxiliary pipe is docked with the main pipe, a plurality of fixing screws are screwed through the main pipe and the connecting pipe to fix.

[0008] The oil filter net cover is provided with a connecting thread, and the oil filter net cover is directly screwed and fixed at the front end of the auxiliary pipe.

[0009] The oil filter cover is placed at the front end of the auxiliary pipe and fixedly connected to the auxiliary pipe by screws.

[0010] The main pipe end is provided with an air guiding duct.

[0011] A hood exhausting module assembly method, characterized in that: the assembly method is that after installing a fixing bracket on the hood exhausting module, the exhaust module is placed in a collecting box at the top of the hood, The fixing bracket is connected to the cigarette collecting box; the assembling method may further be that after the air blowing module is installed on the fixing bracket, the hanging device is directly suspended above the cooking appliance.

[0012] The fixing bracket is mounted on the air guiding tube of the air blowing module, wherein the fixing bracket comprises a fixing frame and an angle iron mounted on the fixing frame, and the fixing frame has a quadrangular shape, and the air guiding tube is opened therein Matching circular through holes.

[0013] The angle irons are four, and are installed at four corners of the fixed frame.

[0014] The specific size of the fixing bracket is determined according to the size of the collecting box of the range hood, and the fixing bracket is required to cooperate with the inner wall of the collecting smoke. [0015] The exhausting module peripheral has a bellows-shaped collecting hood, which is fixedly mounted on the main pipe of the air blowing module through the windshield bracket, and the lower end opening of the collecting hood has a slope shape, and the fixing After the bracket is covered with the cover, the fixing bracket is directly connected to the wall.

[0016] The beneficial effects of the invention are as follows: 1) The structure is simple, the production cost is low, and the market competitiveness is strong. 2) Using the plate to make the main pipe and the auxiliary pipe to form a cylindrical appearance, so there is no seam outside the pipe, no solder joints, beautiful appearance and stylish, and a sense of unity. 3) The axial fan is installed in the cylindrical hood. The oil fume is directly removed after passing through the fan, and the air passage is unimpeded, which improves the efficiency of the fan and reduces the working noise and energy consumption. 4) The exhaust module of the present invention can be directly used as a range hood, or can be installed in other existing types of range hoods to meet the disadvantages of reducing the working noise of the existing range hood.

DRAWINGS

1 and 2 are structural assembly diagrams of a draft module according to the present invention.

3 is an assembled view of a bracket and a draft module in the present invention.

[0019] FIG. 4, 5, 6, and 7 are assembly diagrams of the hood and the exhaust module of the present invention.

8 is an assembled view of a draft module and an existing range hood according to the present invention.

detailed description

[0021] The present invention will be further specifically described below in conjunction with the accompanying drawings. The utility model relates to a hood exhausting module, which is characterized in that it comprises a main pipe 1 and a sub-pipe 2 which are integrally spun-processed from a pipe, and the front end of the sub-pipe 2 is provided with an oil filter net cover 22, and the rear end is provided with a main pipe 1 The connecting pipe 21 with the inner diameter is matched, and the axial fan is installed in the main pipe 1 to be connected with the auxiliary pipe 2 to form a drafting module.

[0022] After the auxiliary pipe 2 is docked with the main pipe 1, a plurality of fixing screws are screwed and fixed to the connecting pipe 21 through the main pipe 1.

[0023] The oil screen cover 22 is provided with a connecting thread, and the oil screen cover 22 is directly screwed and fixed at the front end of the auxiliary pipe 2. [0024] The oil filter screen cover 22 is fastened to the front end of the auxiliary pipe 2, and is fixedly connected to the auxiliary pipe 2 by screws.

[0025] The end of the main pipe 1 is provided with an air guiding duct 11.

[0026] A hood exhaust module assembly method, wherein: the assembly method is: after installing a fixing bracket on the hood exhaust module, the exhaust module is placed in the cigarette collecting box 6 at the top of the hood 5 The fixing method is connected to the cigarette collecting box 6 through the fixing bracket; the assembling method may further be that the air blowing module is directly mounted on the upper side of the cooking appliance after being installed on the fixing bracket.

[0027] The fixing bracket is mounted on the air guiding tube 11 of the air exhausting module. The fixing bracket comprises a fixing frame 3 and an angle iron 4 mounted on the fixing frame. The fixing frame 3 has a quadrangular shape and is opened therein. A circular through hole that cooperates with the air duct 11.

[0028] The angle irons 4 are four, and are installed at four corners of the fixed frame 3.

[0029] The specific size of the fixing bracket is determined according to the size of the cigarette collecting box 6 of the hood 5, and the fixing bracket is required to cooperate with the inner wall of the collecting box 6.

[0030] The exhausting module peripheral has a flared hood 7 which is fixedly mounted on the main pipe 1 of the air blowing module through the hood bracket 8. The lower end of the collecting hood 7 has a slope shape. After the fixing bracket is covered with the decorative cover 71, the fixing bracket is directly connected to the wall 72.

[0031] Working principle: Firstly, the definition of the spinning forming process is described, which is a forming process in which the slab and the core mold are rotated together, and the roller is fed and pressure is applied to make the slab close to the core mold and deform locally. . Spinning can produce a variety of axisymmetric rotating body parts, such as speakers, bullets, high pressure vessel heads, copper cymbals; can also be used for cylinder closing, blank forming, etc. In the present invention, the main pipe and the auxiliary pipe are respectively processed by means of spinning, so that the integrated cylindrical appearance is formed, and since the plate is uniformly deformed, the main pipe and the auxiliary pipe are prevented from being used after the spinning process. The process of sheet metal bending and welding is complicated, and the surface has the disadvantages of seams and solder joints. It has the advantages of beautiful appearance and overall sense. It also avoids the long working hours required by the conventional technology after repeated grinding and polishing after welding, which is difficult to process and has low production efficiency. High cost of production. In the present invention, after the axial fan is installed in the main pipe, the auxiliary pipe 2 is connected to the auxiliary pipe 2 to form a draft module.

[0032] In the present invention, the exhaust module can be assembled in two ways. Embodiment 1: After installing the fixing bracket on the hood exhausting module, the exhaust module is placed in the collecting box 6 at the top of the hood 5, The fixed bracket is connected with the cigarette collecting box 6, and directly replaces the centrifugal fan of the existing range hood, and is used as a power for smoking and smoking. At this time, the soot enters the range hood through the collecting hood at the front end of the range hood, and is sucked into the exhaust module. Since the exhaust module uses the axial fan to smoke, the flow resistance of the soot in the pipeline is small, so the ventilation effect is higher. The noise is also relatively small. The oil smoke is filtered by the filtered oil net and then enters the exhaust module, and finally discharged directly by the fan through the air duct.

[0033] Embodiment 2 of the assembly method of the present invention: The exhaust module of the present invention is directly used as a range hood, and the specific method is to install a fixing bracket outside the air guiding tube 11 of the air blowing module, and pass the windshield bracket 8 on the main pipe 1. A hood 7 is installed, and the drafting module is directly suspended from the wall 72 above the stove by directly hanging the angle iron of the fixing bracket. In order to ensure the appearance, the decorative cover can be installed outside the angle iron, and the smoke can be directly sucked out by the smoking port at the front end of the auxiliary pipe. The collecting hood has the functions of collecting the soot, preventing the spread of the soot and decorating the appearance of the exhaust module.

Therefore, compared with the conventional centrifugal fan hood, the invention avoids the need for the flue gas to pass through the volute and the tortuous air duct, and reduces the wind resistance to improve the exhaust efficiency, and also reduces the working noise of the hood. In addition, the main pipe and the auxiliary pipe, the auxiliary pipe and the oil filter net cover can be disassembled and separated, which is convenient for the user to clean in the future. It should be noted that the exhaust module of the present invention can be mass-produced to reduce the production cost. When assembling with the existing range hood, it is only necessary to change the size of the fixed bracket.

[0035] It is to be understood that the above-described embodiments are merely illustrative and not restrictive. Other variations or modifications of the various forms may be made by those skilled in the art in light of the above description. There is no need and no way to exhaust all of the implementations. And Obvious changes or variations resulting from the present invention are still within the scope of the appended claims.

Claims

Claim

A hood exhausting module, characterized in that it comprises a main pipe (1) and a sub-tube (2) which are integrally spun from a sheet material, and the front end of the sub-tube (2) is provided with an oil filter net cover (22), the back end is set up with the supervisor

(I) Connecting pipe (21) with matching inner diameter, main pipe (1) is connected to the auxiliary pipe (2) and connected to the auxiliary pipe (2) to form a drafting module.

2. The hood exhaust module according to claim 1, wherein: after the sub-tube (2) is docked with the main pipe (1), a plurality of fixing screws pass through the main pipe (1) and the connecting pipe (21). ) Screwed and fixed.

3. The hood exhausting module according to claim 1, wherein: the oil filtering net cover (22) is provided with a connecting thread, and the oil filtering net cover (22) is directly screwed to the auxiliary pipe (2). The front end is fixed.

4. The hood exhaust module according to claim 1, wherein: the oil filter cover (22) is fastened to the front end of the auxiliary pipe (2), and is fixedly connected to the auxiliary pipe (2) by screws.

The hood exhausting module according to claim 1, characterized in that: the end of the main pipe (1) is provided with an air guiding duct (11).

A method for assembling a hood exhaust module, characterized in that: the assembling method is: after installing a fixing bracket on the hood exhausting module, the exhaust module is placed on a collecting box at the top of the hood (5) ( 6) The inner bracket is connected to the cigarette collecting box (6) through the fixing bracket; the assembling method may further be that the air blowing module is directly mounted on the upper side of the cooking appliance after being installed on the fixing bracket.

The hood exhausting module assembly method according to claim 6, wherein: the fixing bracket is mounted on an air guiding tube (11) of the air blowing module, and the fixing bracket comprises a fixing frame (3) and Installed on the fixed frame, the angle iron (4) is formed, and the fixing frame (3) has a quadrangular shape, and the air duct is opened therein.

(II) Matching circular through holes.

8. The hood exhaust module assembly method according to claim 7, wherein: the angle irons (4) are four, and are installed at four corners of the fixing frame (3).

9. The method of assembling a hood exhaust module according to claim 6, wherein: said fixing The specific size of the bracket depends on the size of the cigarette collecting box (6) of the range hood (5), and the fixing bracket is required to cooperate with the inner wall of the collecting box (6).

10. The hood exhaust module assembly method according to claim 6, wherein: the exhaust module peripheral has a flared hood (7), which is fixedly mounted by the hood bracket (8). On the main pipe (1) of the air suction module, the lower end opening of the collecting hood (7) has a slope shape, and after the fixing bracket is covered with the decorative cover (71), the fixing bracket is directly connected with the wall (72). .