Thin range hood

Abstract

The utility model relates to range hood technical field, specifically disclose a kind of thin range hood, including fume collecting hood and fan, the fume collecting hood includes main part and inner exhaust part, the inner exhaust part is located at the front side of main part and is connected with main part, the height where the top surface of inner exhaust part is located is less than the height where the top surface of main part is located, the top surface of inner exhaust part is provided with inner exhaust port;The fan is arranged in main part, first air duct is provided in main part, the inner exhaust part is provided with second air duct, the air outlet of fan, first air duct, second air duct and inner exhaust port are sequentially communicated;The top wall of first air duct and the front side wall of second air duct are all relatively vertical direction and are inclined to set, in the direction of forward extension, the height of the top wall of first air duct gradually reduces, and the height of the front side wall of second air duct gradually increases.The utility model can make gas flow more smoothly, increase air volume, improve smoke suction performance.

Description

Technical Field

[0001] This utility model relates to the field of range hood technology, and in particular to a thin range hood. Background Technology

[0002] Currently, the internal space of slim range hoods on the market is relatively small, and in order to adapt to the installation environment, they usually adopt a stepped smoke collection hood structure. The height of the internal exhaust vent is lower than the height of the top surface of the main body of the smoke collection hood. This results in limited air duct design, insufficient air flow, and greater resistance, leading to low air volume and poor smoke extraction performance. Utility Model Content

[0003] This invention provides a thin range hood that allows for smoother gas flow, increases air volume, and improves smoke extraction performance.

[0004] To solve the above problems, the present invention adopts the following technical solution:

[0005] This utility model provides a thin range hood, including a smoke collection hood and a fan. The smoke collection hood includes a main body and an internal exhaust section. The internal exhaust section is located on the front side of the main body and connected to the main body. The height of the top surface of the internal exhaust section is less than the height of the top surface of the main body. An internal exhaust vent is provided on the top surface of the internal exhaust section. The fan is disposed inside the main body. A first air duct is disposed inside the main body. A second air duct is disposed in the internal exhaust section. The air outlet of the fan, the first air duct, the second air duct, and the internal exhaust vent are sequentially connected. The top wall of the first air duct and the front side wall of the second air duct are both inclined relative to the vertical direction. In the forward extending direction, the height of the top wall of the first air duct gradually decreases, and the height of the front side wall of the second air duct gradually increases.

[0006] In some embodiments, an exhaust vent is provided on the top surface of the main body, and a third air duct is provided inside the main body. The first air duct, the third air duct, and the exhaust vent are sequentially connected. A top cover for sealing the exhaust vent is detachably fixed at the exhaust vent. A baffle for closing the first air duct is detachably provided inside the first air duct, or a baffle for closing the second air duct is detachably provided inside the second air duct, or a baffle for separating the first air duct and the second air duct is detachably provided at the connection between the first air duct and the second air duct.

[0007] In some embodiments, the bottom wall at the connection between the first air duct and the second air duct is provided with a through slot, and the baffle can be inserted into the slot or pulled out from the slot.

[0008] In some embodiments, the bottom of the baffle has a flange, which is detachably fixed to the outer bottom wall of the first or second air duct after the baffle is inserted into the slot.

[0009] In some embodiments, after the baffle is pulled out of the slot, the baffle is detachably fixed to the outer bottom wall of the first or second air duct.

[0010] In some embodiments, when the baffle is pulled out of the slot and fixed to the outer bottom wall of the first or second air duct, the baffle covers the slot, or the baffle is inserted into the slot by flipping its edge.

[0011] In some embodiments, the bottom wall of the third air duct includes a guide portion located directly below the exhaust vent. The guide portion is inclined relative to the horizontal direction, and its height gradually increases in the extension direction of the third air duct.

[0012] In some embodiments, the fan includes a volute and a fan wheel located inside the volute, the fan outlet is disposed on the volute, the smoke hood is provided with a partition located outside the volute, and a third air duct is formed between the volute and the partition.

[0013] In some embodiments, the air outlet of the fan is located on its front side, and the air outlet of the fan faces forward.

[0014] In some embodiments, the bottom of the smoke hood is provided with a smoke inlet, and the air inlet of the fan is located above the smoke inlet.

[0015] This utility model has at least the following beneficial effects: The air outlet, first air duct, second air duct and internal exhaust outlet of the fan of this utility model are connected in sequence. The top wall of the first air duct and the front side wall of the second air duct are both inclined relative to the vertical direction. In the forward extension direction, the height of the top wall of the first air duct gradually decreases and the height of the front side wall of the second air duct gradually increases. The top wall of the first air duct and the front side wall of the second air duct can smoothly guide the airflow along the air duct, making the gas flow smoother, increasing the air volume and improving the smoke extraction performance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a thin range hood according to an embodiment of the present invention after the top cover is closed;

[0017] Figure 2 This is a schematic diagram of the structure of a thin range hood according to an embodiment of the present invention after the top cover is removed;

[0018] Figure 3 This is a cross-sectional schematic diagram of a thin range hood according to an embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of the structure of a thin range hood according to an embodiment of the present invention after removing the smoke hood portion of the housing;

[0020] Figure 5 This is a partial structural diagram of a thin range hood according to an embodiment of the present invention, after the first and second air ducts are separated by a baffle.

[0021] Figure 6 This is a partial structural diagram of a thin range hood according to an embodiment of the present invention after the baffle is removed;

[0022] Figure 7 for Figure 6 Enlarged view of point A in the middle;

[0023] Figure 8 This is a schematic diagram of the structure of a baffle according to one embodiment of the present invention.

[0024] The attached figures are labeled as follows:

[0025] First air duct 101, second air duct 102, third air duct 103, top wall 104, front side wall 105, partition 106, guide part 107, main body part 110, external exhaust vent 111, top cover 112, internal exhaust part 120, internal exhaust vent 121, slot 1021, mounting hole 1022;

[0026] Fan 200, volute 210, impeller 220;

[0027] Baffle 300, flange 310. Detailed Implementation

[0028] This invention provides the following description with reference to the accompanying drawings to aid in a comprehensive understanding of the various embodiments of the invention as defined by the claims and their equivalents. The description includes various specific details to aid understanding, but these details should be considered exemplary only. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the invention.

[0029] In the description of this utility model, the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] It should be understood that when one element (e.g., the first element) is “connected” to another element (e.g., the second element), the element may be directly connected to the other element, or there may be an intervening element (e.g., the third element) between the element and the other element.

[0031] An embodiment of this utility model provides a thin range hood, such as... Figure 1 , Figure 3 and Figure 4 As shown, the system includes a fume hood and a fan 200. The fume hood comprises a main body 110 and an internal exhaust section 120. The internal exhaust section 120 is located on the front side of the main body 110 and connected to it. The internal exhaust section 120 can be fixed to the front side of the main body 110 or integrally formed with the main body 110 to simplify the assembly process. The top surface of the internal exhaust section 120 is lower than the top surface of the main body 110, giving the entire fume hood a stepped structure. An internal exhaust vent 121 is provided on the top surface of the internal exhaust section 120, through which the fumes extracted by the range hood are discharged into the room.

[0032] A fan 200 is installed inside the main body 110, which contains a first air duct 101. An internal exhaust vent 120 contains a second air duct 102. The fan 200's outlet, the first air duct 101, the second air duct 102, and the internal exhaust vent 121 are sequentially connected. Therefore, after the fan 200 removes the fumes, the airflow can flow along the first air duct 101 and the second air duct 102, and finally be discharged into the room through the internal exhaust vent 121. The top wall 104 of the first air duct 101 and the front side wall 105 of the second air duct 102 are both inclined relative to the vertical direction. In the forward direction, the height of the top wall 104 of the first air duct 101 gradually decreases, while the height of the front side wall 105 of the second air duct 102 gradually increases. The angles between the top wall 104 of the first air duct 101 and the vertical direction, as well as the angles between the front side wall 105 of the second air duct 102 and the vertical direction, can be determined by those skilled in the art based on actual conditions. Because the top wall 104 of the first air duct 101 is inclined, it can guide the airflow downward to compensate for the height difference between the top surface of the inner exhaust section 120 and the top surface of the main body 110. Meanwhile, the front side wall 105 of the second air duct 102 can guide the airflow upward, making it easier for the airflow to flow to the inner exhaust port 121. As a result, the gas flow is smoother, the air volume is increased, and the smoke extraction performance is improved.

[0033] In some embodiments, such as Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, an exhaust vent 111 is provided on the top surface of the main body 110, and a third air duct 103 is provided inside the main body 110. The first air duct 101, the third air duct 103, and the exhaust vent 111 are connected sequentially. After the fan 200 removes the fumes, the airflow can flow along the first air duct 101 and the third air duct 103, and can be discharged to the outside through the exhaust vent 111. A top cover 112 is detachably fixed to the exhaust vent 111 to seal it.

[0034] A baffle 300 for closing the first air duct 101 can be detachably installed inside the first air duct 101, or a baffle 300 for closing the second air duct 102 can be detachably installed inside the second air duct 102, or a baffle 300 for separating the first air duct 101 and the second air duct 102 can be detachably installed at the connection between the first air duct 101 and the second air duct 102.

[0035] When the baffle 300 is installed and fixed inside the first air duct 101, the second air duct 102, or at the connection between the first air duct 101 and the second air duct 102, the airflow blown out by the fan 200 cannot flow through the first air duct 101 and the second air duct 102 to the inner exhaust port 121. When the baffle 300 is removed from the first air duct 101, the second air duct 102, or at the connection between the first air duct 101 and the second air duct 102, the first air duct 101 and the second air duct 102 remain unobstructed, and the airflow blown out by the fan 200 can flow through the first air duct 101 and the second air duct 102 to the inner exhaust port 121.

[0036] When smoke needs to be exhausted through the external exhaust vent 111, the baffle 300 is installed and fixed inside the first air duct 101, the second air duct 102, or at the connection between the first air duct 101 and the second air duct 102. Simultaneously, the top cover 112 is opened, allowing airflow to flow along the first air duct 101 and the third air duct 103, and then exhaust to the outside through the external exhaust vent 111. When smoke needs to be exhausted through the internal exhaust vent 121, the baffle 300 is removed from the first air duct 101, the second air duct 102, or the connection between the first air duct 101 and the second air duct 102. Simultaneously, the top cover 112 is fixed at the external exhaust vent 111, allowing airflow to flow along the first air duct 101 and the second air duct 102, and finally exhaust to the room through the internal exhaust vent 121. Therefore, this embodiment allows switching between different smoke exhaust vents using the top cover 112 and the baffle 300 to meet diverse smoke exhaust needs of users.

[0037] Furthermore, such as Figure 3 , Figure 5 and Figure 7 As shown, a through slot 1021 is provided on the bottom wall of the connection between the first air duct 101 and the second air duct 102. The baffle 300 can be inserted into or removed from the slot 1021. When the baffle 300 is inserted into the slot 1021, it can isolate the first air duct 101 and the second air duct 102. When the baffle 300 is removed from the slot 1021, the first air duct 101 and the second air duct 102 are connected. Because of the plug-in connection, the user can insert or remove the baffle 300 from the slot 1021 from the outside without disassembling the air ducts, making operation more convenient.

[0038] Furthermore, such as Figure 7 and Figure 8As shown, the bottom of the baffle 300 has a flange 310. After the baffle 300 is inserted into the slot 1021, the flange 310 is detachably fixed to the outer bottom wall of the first air duct 101 or the second air duct 102, thereby fixing the baffle 300.

[0039] The flange 310 can be fixed to the outer bottom wall of the first air duct 101 or the second air duct 102 in various ways, such as magnetic fixation, snap-fit ​​connection or screw fixation. For example, the bottom wall of the second air duct 102 is provided with a mounting hole 1022, and the screw can pass through the through hole on the flange 310 and then be fixed into the mounting hole 1022.

[0040] In some embodiments, after the baffle 300 is pulled out of the slot 1021, the baffle 300 is detachably fixed to the outer bottom wall of the first air duct 101 or the second air duct 102, which can fix the pulled-out baffle 300 in a preset position and prevent the baffle 300 from being lost.

[0041] The baffle 300 can be fixed to the outer bottom wall of the first air duct 101 or the second air duct 102 by various methods such as magnetic fixation, snap-fit ​​connection or screw fixation.

[0042] Furthermore, when the baffle 300 is pulled out of the slot 1021 and the baffle 300 is fixed on the outer bottom wall of the first air duct 101 or the second air duct 102, the baffle 300 can cover the slot 1021, or the flange 310 can be inserted into the slot 1021 to block the slot 1021 as much as possible and reduce the leakage of flue gas through the slot 1021.

[0043] In some embodiments, such as Figure 2 and Figure 4 As shown, the bottom wall of the third air duct 103 includes a guide portion 107, which is located directly below the exhaust vent 111. The guide portion 107 is inclined relative to the horizontal direction. In the extension direction of the third air duct 103, the height of the guide portion 107 gradually increases. The guide portion 107 can guide the airflow upward, making it easier for the airflow to flow to the exhaust vent 111, which facilitates the smooth discharge of flue gas.

[0044] by Figure 4 For example, the third air duct 103 can extend backward. Therefore, in the backward direction, the guide part 107 extends obliquely upward, and the height of the guide part 107 gradually increases.

[0045] In some embodiments, such as Figure 4 As shown, the fan 200 includes a volute 210 and a fan wheel 220 located inside the volute 210. The air outlet of the fan 200 is located on the volute 210. A baffle 106 located outside the volute 210 is provided inside the smoke hood. A third air duct 103 is formed between the volute 210 and the baffle 106.

[0046] In this embodiment, two fans 200 can be provided. The two fans are located on both sides of the partition 106. The partition 106 separates the two fans and the corresponding air ducts, so that the two fans 200 can work independently and reduce interference.

[0047] The volute 210 can adopt an Archimedes spiral design, which can make the circumferential flow of air more uniform.

[0048] In some embodiments, the air outlet of the fan 200 is located on its front side and faces forward, which can shorten the path of airflow from the air outlet of the fan 200 to the inner exhaust port and facilitate the rapid flow of air.

[0049] In some embodiments, such as Figure 3 As shown, a smoke inlet is provided at the bottom of the fume hood, and the air inlet of the fan 200 is located above the smoke inlet. The cooking fumes enter the fume hood through the smoke inlet, and then enter the fan 200 through the air inlet.

[0050] The terms and words used in the foregoing description and claims are not limited to their literal meaning, but are merely used by the applicant to enable a clear and consistent understanding of the present invention. Therefore, those skilled in the art should understand that the foregoing description of various embodiments of the present invention is for illustrative purposes only, and not intended to limit the present invention as defined by the appended claims and their equivalents.

Claims

1. A slim range hood, characterized in that: The system includes a smoke hood and a fan. The smoke hood comprises a main body and an internal exhaust section. The internal exhaust section is located on the front side of the main body and connected to it. The top surface of the internal exhaust section is at a lower height than the top surface of the main body. An internal exhaust vent is provided on the top surface of the internal exhaust section. The fan is disposed inside the main body. A first air duct is disposed inside the main body. A second air duct is disposed in the internal exhaust section. The air outlet of the fan, the first air duct, the second air duct, and the internal exhaust vent are sequentially connected. The top wall of the first air duct and the front side wall of the second air duct are both inclined relative to the vertical direction. In the forward extending direction, the height of the top wall of the first air duct gradually decreases, and the height of the front side wall of the second air duct gradually increases.

2. The slim range hood according to claim 1, characterized in that: An exhaust vent is provided on the top surface of the main body, and a third air duct is provided inside the main body. The first air duct, the third air duct, and the exhaust vent are connected sequentially. A top cover for sealing the exhaust vent is detachably fixed at the exhaust vent. A baffle for closing the first air duct is detachably provided inside the first air duct, or a baffle for closing the second air duct is detachably provided inside the second air duct, or a baffle for separating the first air duct and the second air duct is detachably provided at the connection between the first air duct and the second air duct.

3. The slim range hood according to claim 2, characterized in that: The bottom wall at the connection between the first and second air ducts is provided with a through slot, and the baffle can be inserted into or pulled out of the slot.

4. The slim range hood according to claim 3, characterized in that: The bottom of the baffle has a flange, which is detachably fixed to the outer bottom wall of the first or second air duct after the baffle is inserted into the slot.

5. The slim range hood according to claim 3, characterized in that: After the baffle is pulled out of the slot, the baffle is detachably fixed to the outer bottom wall of the first air duct or the second air duct.

6. The slim range hood according to claim 5, characterized in that: When the baffle is pulled out of the slot and fixed to the outer bottom wall of the first or second air duct, the baffle covers the slot, or the baffle is flipped and inserted into the slot.

7. The slim range hood according to any one of claims 2-6, characterized in that: The bottom wall of the third air duct includes a guide section located directly below the exhaust vent. The guide section is inclined relative to the horizontal direction, and its height gradually increases along the extension direction of the third air duct.

8. The slim range hood according to any one of claims 2-6, characterized in that: The fan includes a volute and a fan wheel located inside the volute. The fan outlet is located on the volute. A partition is located outside the volute inside the smoke hood. A third air duct is formed between the volute and the partition.

9. The slim range hood according to any one of claims 1-6, characterized in that: The air outlet of the fan is located on its front side, and the air outlet of the fan faces forward.

10. The slim range hood according to any one of claims 1-6, characterized in that: The bottom of the smoke hood is provided with a smoke inlet, and the air inlet of the fan is located above the smoke inlet.

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