Split-type range hood

Abstract

A separate range hood includes a main body, an exhaust motor, a duct, a first sleeve, and a second sleeve. The main body comprises a casing and a smoke collection box. The casing has an air inlet, and the smoke collection box is mounted on the casing, covering the air inlet. The smoke collection box has an air outlet, which communicates with the air inlet of the casing. A first flange is provided around the air outlet of the smoke collection box. The exhaust motor is located on the outside of the main body and includes an outer casing and a motor body, with the motor body housed within the outer casing. The first sleeve is assembled and fixed to the smoke collection box and fits onto the first flange. One end of the duct is connected to the first sleeve, allowing one end of the duct to communicate with the air outlet of the main body. The second sleeve is assembled and fixed to the outer casing, and the other end of the duct is sleeved onto the second sleeve, so that the other end of the duct is connected to the exhaust motor through the second sleeve. As a result, there is no gap between the first sleeve and the main body of the range hood, the airtightness is better, and there is no oil fume leakage, which improves the efficiency of oil fume emission and prevents oil leakage.

Description

Separate range hood The present invention relates to a range hood, in particular to a separate range hood in which a range hood body and an exhaust motor are designed to be separate. A separate range hood design separates the range hood body from the exhaust motor, allowing the exhaust motor to be located outdoors to reduce noise. The range hood body and exhaust motor must be connected via an air duct. A sleeve can be screwed onto the air outlet of the range hood body, with one end of the duct sleeve fitted into the sleeve, allowing the sleeve to connect to the air outlet of the range hood body. However, when the sleeve is only screwed onto the range hood body, a gap can easily form between the sleeve and the range hood body, resulting in poor airtightness. When oil smoke is transported from the air outlet of the range hood body to the air duct, it can easily leak through the gap, reducing the efficiency of oil smoke emission. The gap is also prone to oil leakage, causing contamination of the range hood body. The technical problem to be solved by the present invention is to provide a separate range hood to address the shortcomings of the existing technology. There will be no gap between the first pipe sleeve and the range hood body, the air tightness is better, and there will be no oil smoke leakage, so the oil fume emission efficiency is improved, and oil leakage will not occur, which can prevent the range hood body from being contaminated. In order to solve the above-mentioned technical problems, the present invention provides a separate type range hood exhaust fan, comprising: a range hood exhaust fan main body, the range hood exhaust fan main body comprising a casing and a smoke collecting box body, the casing having an air inlet, the smoke collecting box body being arranged on the casing, the smoke collecting box body covering the air inlet, the smoke collecting box body having an air outlet, the air outlet of the smoke collecting box body being connected to the air inlet of the casing, the smoke collecting box body being provided with a first flange on the periphery of the air outlet, the first flange being annular, and the first flange protruding from the smoke collecting box body; an exhaust motor, the exhaust motor being arranged on the outside of the range hood exhaust fan main body, the exhaust motor comprising an outer casing and a motor body, the outer casing having a first opening an outlet and a second opening, the motor body is arranged in the outer shell, and one end of the motor body has an outlet; an air duct; a first pipe sleeve, the first pipe sleeve is assembled and fixed on the smoke collecting box body, the first pipe sleeve is located on the outside of the air outlet, and the first pipe sleeve is sleeved on the first flange, one end of the air duct is sleeved on the first pipe sleeve, so that one end of the air duct is connected to the air outlet of the range hood body through the first pipe sleeve; and a second pipe sleeve, the second pipe sleeve is assembled and fixed on the outer shell, the second pipe sleeve is located on the outside of the first opening, and the other end of the air duct is sleeved on the second pipe sleeve, so that the other end of the air duct is connected to the first opening of the exhaust motor through the second pipe sleeve. The present invention provides a beneficial effect of providing a separate range hood, comprising a range hood body, an exhaust motor, an air duct, a first pipe sleeve, and a second pipe sleeve. A first flange is provided on the periphery of the air outlet of the smoke collection box, and the first pipe sleeve is mounted on the first flange, allowing the first pipe sleeve to tightly engage with the smoke collection box. This eliminates any gaps between the first pipe sleeve and the range hood body, resulting in improved airtightness and preventing oil smoke leakage. This improves oil smoke exhaust efficiency, prevents oil leakage, and prevents contamination of the range hood body. Furthermore, a second flange may be provided on the periphery of the first opening of the outer shell of the exhaust motor, and the second pipe sleeve may be sleeved on the second flange so that the second pipe sleeve can be tightly engaged with the outer shell of the exhaust motor. Therefore, no gap will be generated between the second pipe sleeve and the exhaust motor, the air tightness is better, and there will be no oil smoke leakage. The exhaust efficiency of the oil smoke can also be improved, and there will be no oil leakage, which can prevent the exhaust motor from being contaminated. To further understand the features and technical contents of the present invention, please refer to the following detailed description and drawings of the present invention. However, the drawings provided are only for reference and illustration and are not intended to limit the present invention. The following is an explanation of the relevant embodiments disclosed in the present invention through specific specific examples. Those skilled in the art can understand the advantages and effects of the present invention from the contents disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and the details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of the present invention. In addition, the drawings of the present invention are only simple schematic illustrations and are not depicted according to actual dimensions. It is stated in advance. The following embodiments will further explain the relevant technical content of the present invention in detail, but the disclosed content is not intended to limit the scope of protection of the present invention. In addition, the term "or" used in this article may include any one or more combinations of the associated listed items depending on the actual situation. [Example] Referring to Figures 1 to 3 , the present invention provides a separate range hood comprising a range hood body 1, an exhaust motor 2, an air duct 3, a first pipe sleeve 4, and a second pipe sleeve 5. The exhaust motor 2 is disposed outside the range hood body 1. The range hood body 1 is connected to the exhaust motor 2 via the first pipe sleeve 4, air duct 3, and second pipe sleeve 5 to exhaust cooking fumes. Referring again to Figures 4 and 5, the range hood main body 1 includes a housing 11 and a smoke collection box 12. In this embodiment, the housing 11 is generally an inverted rectangular shell. The shape of the housing 11 is not limited. The housing 11 may have an upper wall 111 and a lower wall 112. The lower wall 112 is disposed below the upper wall 111. The upper wall 111 may be parallel to the lower wall 112. However, the present invention is not limited thereto. For example, the lower wall 112 may be configured to be inclined and disposed obliquely below the upper wall 111. The housing 11 has an air inlet 113 that passes through the upper wall 111 and the lower wall 112. The air inlet 113 is the air inlet for the oil smoke to enter. In this embodiment, the air inlet 113 is square, but the shape of the air inlet 113 is not limited thereto. The smoke collecting box 12 is arranged on the casing 11. The smoke collecting box 12 covers the air inlet 113. The smoke collecting box 12 protrudes from the upper wall 111. The structure of the smoke collecting box 12 is not limited. In the present embodiment, the smoke collecting box 12 may include an outer box wall 121, a flow guide shell 122 and a cover plate 123. The outer box wall 121 is fixed around the air inlet 113. The part of the outer box wall 121 near the bottom can be fixed to the upper edge of the air inlet 113 or the inner side of the air inlet 113 by screw locking or riveting. The outer box wall 121 can provide a fixing function. The flow guide shell 122 is arranged inside the outer box wall 121. The flow guide shell 122 can provide a smooth surface to increase the smoothness of airflow and facilitate maintenance and cleaning. The cover plate 123 is fixedly connected to the top of the outer box wall 121, for example, by screw locking or riveting. The top of the flow guide housing 122 can be fixedly connected to the cover plate 123, for example, by spot welding or riveting. The smoke collecting box 12 has an air outlet 124, which can be located on the cover plate 123 and can be a circular opening. The air outlet 124 of the smoke collecting box 12 is connected to the air inlet 113 of the housing 11. In this embodiment, the smoke collecting box 12 is provided with a guide housing 122 within the outer box wall 121, which improves the interior appearance and reduces turbulence of the oil smoke. The oil smoke can pass through the guide housing 122 and be discharged more smoothly out of the air outlet 124 on the cover plate 123. The smoke collecting box 12 is provided with a first flange 125 on the periphery of the air outlet 124. The first flange 125 is annular. In the present embodiment, the first flange 125 is a circular ring. The first flange 125 protrudes from the smoke collecting box 12 at an appropriate height so that the first pipe sleeve 4 can be sleeved on the first flange 125. The first flange 125 can be provided on the smoke collecting box 12 by combining or integrally forming. Preferably, the first flange 125 is integrally formed with the smoke collecting box 12 to provide better airtightness. In the present embodiment, the first flange 125 is provided on the cover plate 123 of the smoke collecting box 12. The first flange 125 can be integrally formed and provided on the cover plate 123 of the smoke collecting box 12. The first sleeve 4 is assembled and fixed to the smoke collecting box 12 by means of at least two first screws 41, etc. The first sleeve 4 is located outside the air outlet 124 and is sleeved on the first flange 125, so that the first sleeve 4 and the smoke collecting box 12 are tightly joined. Specifically, the first sleeve 4 can have a first sleeve portion 42 and a second sleeve portion 43. The shape of the first sleeve portion 42 corresponds to the first flange 125. The first sleeve 4 is sleeved on the first flange 125 by the first sleeve portion 42. Since the first sleeve 4 can be a commercially available product and the present invention does not limit the structure of the first sleeve 4, the first sleeve 4 will not be described in detail. One end of the air duct 3 is sleeved on the first pipe sleeve 4, and one end of the air duct 3 can be sleeved on the second sleeve portion 43 of the first pipe sleeve 4, so that one end of the air duct 3 is connected to the air outlet 124 of the range hood main body 1 through the first pipe sleeve 4, so that the oil smoke can be discharged outward through the range hood main body 1, the first pipe sleeve 4 and the air duct 3 in sequence. The exhaust motor 2 includes an outer shell 21 and a motor body 22. The outer shell 21 is hollow and has a first opening 211 and a second opening 212. The first opening 211 and the second opening 212 can be located on opposite sides of the outer shell 21. The motor body 22 is disposed within the outer shell 21 and has an exhaust port 221 at one end. The exhaust port 221 corresponds to the second opening 212. The exhaust port 221 of the motor body 22 can also extend outside the outer shell 21 through the second opening 212, allowing oil smoke extracted by the exhaust motor 2 to be discharged. The outer shell 21 may be provided with a second flange 213 around the outer periphery of the first opening 211. The second flange 213 is annular. In this embodiment, the second flange 213 is an elliptical ring. The second flange 213 protrudes from the outer shell 21 by an appropriate height to allow the second pipe sleeve 5 to be sleeved onto the second flange 213. The second flange 213 may be provided on the outer shell 21 by assembly or integral molding. Preferably, the second flange 213 is integrally formed with the outer shell 21 to provide better airtightness. Referring again to Figure 6 , the second sleeve 5 is assembled and secured to the outer housing 21 using at least a second screw 51. The second sleeve 5 is located outside the first opening 211 and is sleeved onto the second flange 213, allowing it to securely engage the outer housing 21. Specifically, the second sleeve 5 may have a third sleeve portion 52 and a fourth sleeve portion 53. The second sleeve 5 is sleeved onto the second flange 213 via the third sleeve portion 52. Since the second sleeve 5 can be a commercially available product and the present invention is not limited to its structure, further details will be omitted. The other end of the air duct 3 is sleeved on the second pipe sleeve 5, and the other end of the air duct 3 can be sleeved on the fourth sleeve portion 53 of the second pipe sleeve 5, so that the other end of the air duct 3 can be connected to the first opening 211 of the exhaust motor 2 through the second pipe sleeve 5. In this way, the range hood body 1 is connected to the exhaust motor 2 through the first pipe sleeve 4, the air duct 3, and the second pipe sleeve 5 in sequence, thereby exhausting oil smoke to the outside. The present invention moves the exhaust motor 2 to the outside of the smoke collecting box 12, which not only reduces indoor noise, but also lowers the height of the smoke collecting box 12. The indoor mechanism of the separate range hood (range hood body 1) is thereby greatly reduced in height and weight, making it easier to install. The separate range hood of the present invention may further include a control box 6, which is disposed on top of the cover 123 of the smoke collecting box 12. The control circuit (not shown) can pass through the space between the upper wall 111 and the lower wall 112 of the housing 11, so that the circuit can be hidden. The separate range hood of the present invention may further include an oil fume filter 7, which is disposed at the air inlet 113. The oil fume filter 7 is located at the bottom of the smoke collecting box 12, so that the oil fume can be filtered through the oil fume filter 7 before entering the smoke collecting box 12. [Beneficial Effects of Embodiments] The present invention provides a beneficial effect of providing a separate range hood, comprising a range hood body, an exhaust motor, an air duct, a first pipe sleeve, and a second pipe sleeve. A first flange is provided on the periphery of the air outlet of the smoke collection box, and the first pipe sleeve is mounted on the first flange, allowing the first pipe sleeve to tightly engage with the smoke collection box. This eliminates any gaps between the first pipe sleeve and the range hood body, resulting in improved airtightness and preventing oil smoke leakage. This improves oil smoke exhaust efficiency, prevents oil leakage, and prevents contamination of the range hood body. Furthermore, a second flange may be provided on the periphery of the first opening of the outer shell of the exhaust motor, and the second pipe sleeve may be sleeved on the second flange so that the second pipe sleeve can be tightly engaged with the outer shell of the exhaust motor. Therefore, no gap will be generated between the second pipe sleeve and the exhaust motor, the air tightness is better, and there will be no oil smoke leakage. The exhaust efficiency of the oil smoke can also be improved, and there will be no oil leakage, which can prevent the exhaust motor from being contaminated. The contents disclosed above are only preferred feasible embodiments of the present invention and do not limit the scope of the patent application of the present invention. Therefore, all equivalent technical changes made using the contents of the description and drawings of the present invention are included in the scope of the patent application of the present invention. 1: Range hood body 11: Casing 111: Upper wall 112: Lower wall 113: Air inlet 12: Smoke collection box 121: Outer box wall 122: Air guide housing 123: Cover 124: Air outlet 125: First flange 2: Exhaust motor 21: Outer housing 211: First opening 212: Second opening 213: Second flange 22: Motor body 221: Exhaust outlet 3: Air duct 4: First sleeve 41: First screw 42: First socket 43: Second socket 5: Second sleeve 51: Second screw 52: Third socket 53: Fourth socket 6: Control box 7: Fume filter FIG1 is an exploded perspective view of a separate range hood according to the present invention. FIG2 is a perspective view of the separate range hood of the present invention. FIG3 is a schematic plan view of the separate range hood of the present invention. FIG4 is a perspective exploded view of the range hood main body, the first pipe sleeve and the air duct of the present invention. FIG5 is a perspective exploded view of the smoke collecting box of the range hood main body of the present invention. FIG6 is an exploded perspective view of the exhaust motor, the second pipe sleeve, and the air duct according to the present invention. 1: Range hood body 11: Casing 111:Up the wall 12: Smoke collection box 121: Outer box wall 123: Cover 124: Air outlet 125: First flange 2: Exhaust motor 21: Outer shell 211: First Opening 212: Second opening 213: Second flange 22: Motor body 221: Exhaust 3: Air duct 4: First pipe sleeve 41: First Screw 42: first socket portion 43: Second socket part 5: Second pipe sleeve 51: Second screw 52: The third socket part 53: Fourth socket part 6: Control box

Claims

1. A separate range hood, comprising: A range hood body includes a housing and a smoke collection box. The housing has an air inlet, and the smoke collection box is disposed on the housing and covers the air inlet. The smoke collection box has an air outlet, which is connected to the air inlet of the housing. The smoke collection box has a first flange around the air outlet. The first flange is annular and protrudes from the smoke collection box. The smoke collection box includes an outer box wall, a guide shell, and a cover plate. The outer box wall is fixed around the air inlet, the guide shell is detachably disposed inside the outer box wall, and the cover plate is fixedly connected to the top of the outer box wall. An exhaust motor is disposed on the outside of the main body of the range hood. The exhaust motor includes a housing and a motor body. The housing has a first opening and a second opening. The motor body is disposed within the housing. One end of the motor body has an exhaust outlet. A duct. A first sleeve is assembled and fixed to the smoke collection box. The first sleeve is located outside the air outlet and is fitted onto the first flange. One end of the duct is fitted onto the first sleeve, so that one end of the duct is connected to the air outlet of the main body of the range hood through the first sleeve. A second sleeve is assembled and fixed to the outer shell. The second sleeve is located outside the first opening. The other end of the duct is fitted onto the second sleeve, so that the other end of the duct is connected to the first opening of the suction motor through the second sleeve.

2. The separate range hood as claimed in claim 1, wherein the housing has an upper wall and a lower wall, the lower wall is located below the upper wall, the air inlet passes through the upper wall and the lower wall, and the smoke collection box protrudes from the upper wall.

3. The separate range hood as claimed in claim 1, wherein the air outlet and the first flange are disposed on the cover plate.

4. The separate range hood as claimed in claim 1, wherein the first flange is integrally formed on the smoke collection box.

5. The separate range hood as claimed in claim 1, wherein the outer casing is provided with a second flange around the first opening, the second flange is annular and protrudes from the outer casing, and the second sleeve is fitted onto the second flange.

6. The split-type range hood as claimed in claim 5, wherein the second flange is integrally formed on the outer casing.

7. The separate range hood as claimed in claim 1, wherein the first sleeve is secured to the smoke collection box by at least two first screws.

8. The split-type range hood as claimed in claim 1, wherein the second sleeve is secured to the outer casing with at least two second screws.

9. The separate range hood as claimed in claim 1, further comprising an oil fume filter screen disposed at the air inlet and located at the bottom of the smoke collection box.

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