A smoke hood module and commercial range hood

Abstract

The utility model belongs to the technical field of range hoods, and discloses a hood module and a commercial range hood. The hood module includes a hood assembly, a filter and an oil baffle, the oil baffle is connected to the hood assembly and encloses a smoke collecting chamber, the filter is arranged in the smoke collecting chamber, at least one side edge of the oil baffle is spaced from the hood assembly to form an air inlet, the hood module also includes a spray mechanism for spraying a cleaning medium, the spray mechanism includes a spray pipe and a spray port connected to the spray pipe, and the spray port can spray toward the filter and the oil baffle. The hood assembly can automatically spray the cleaning medium onto the filter and the oil baffle, effectively clean the filter and the oil baffle, ensure the hood module's filtering performance for oil smoke, no manual disassembly and cleaning are required, and it is easy to use.

Description

Technical Field

[0001] The utility model relates to the technical field of range hoods, in particular to a hood module and a commercial range hood. Background Art

[0002] The hood and purification all-in-one machine is a common commercial range hood, which is mainly composed of three parts: the hood module, the purification module and the fan module. The hood module includes an oil baffle and a front filter to separate the oil smoke; the purification module is equipped with an electric field to purify the oil smoke. Under the suction of the terminal fan, the oil smoke first passes through the oil baffle and the filter, and then enters the purification module to filter out large particles of oil smoke and particulate matter, and finally is discharged into the public flue through the fan.

[0003] As the front-end separation devices of the hood purification machine, the oil baffle and filter will inevitably adhere to a large amount of oil stains. Chefs in commercial kitchens need to regularly remove and clean the oil baffle and filter to ensure their filtering performance, otherwise the purification effect of the machine will be greatly reduced, and as the oil stains increase, some of the oil stains may drip onto the stove or pot. Utility Model Content

[0004] The utility model aims to provide a hood module and a commercial range hood, which can automatically clean the oil baffle and the filter, and do not need to be manually removed for manual cleaning, so the use is convenient.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A hood module is used for commercial range hoods, the hood module comprises a hood assembly, a filter and an oil baffle, the oil baffle is connected to the hood assembly to form a smoke collecting chamber, the filter is arranged in the smoke collecting chamber, at least one side edge of the oil baffle is spaced from the hood assembly to form an air inlet, the hood module also comprises a spray mechanism for spraying a cleaning medium, the spray mechanism comprises a spray pipe and a spray port connected to the spray pipe, the spray port can spray toward the filter and the oil baffle.

[0007] As an optional solution of the above-mentioned smoke hood module, the spray port includes a first spray port and a second spray port, the first spray port is toward the filter screen, and the second spray port is toward the oil baffle.

[0008] As an optional solution of the above-mentioned fume hood module, the number of the first spray opening and the number of the second spray opening are both multiple, and the number of the first spray opening is greater than the number of the second spray opening;

[0009] And / or, the smoke hood assembly includes an air outlet connected to the smoke collecting chamber, the filter and the oil baffle both include an oil accumulation area and a non-oil accumulation area, the oil accumulation area is arranged close to the air outlet, the distribution density of the first spray ports corresponding to the oil accumulation area is greater than the distribution density of the first spray ports corresponding to the non-oil accumulation area, or the plurality of spray ports are evenly spaced along the left-right direction.

[0010] As an optional solution for the above-mentioned smoke hood module, the spray mechanism also includes a nozzle connected to the spray pipe, the nozzle includes a first nozzle end and a second nozzle end, the first nozzle end forms the first spray port and is arranged toward the filter, and the second nozzle end forms the second spray port and is arranged toward the oil baffle.

[0011] As an optional solution of the above-mentioned smoke hood module, the first nozzle end and the second nozzle end are separately arranged or are an integrated structure;

[0012] And / or, the nozzle is detachably and sealably connected to the spray pipe;

[0013] And / or, the nozzle is a fan-shaped nozzle or a spiral nozzle.

[0014] As an optional solution for the above-mentioned smoke hood module, the spray pipe is arranged between the filter and the oil baffle and extends in the left and right directions. The number of the spray ports is at least two and they are arranged at intervals along the length direction of the spray pipe.

[0015] As an optional solution of the above-mentioned smoke hood module, the spray mechanism also includes a hanging member, the top end of the hanging member is connected to the smoke hood assembly, and the bottom end of the hanging member is connected to the middle section of the spray pipe.

[0016] As an optional solution for the above-mentioned smoke hood module, the height of the filter and / or the oil baffle gradually decreases from front to back, an oil collecting trough is provided at the bottom of the smoke hood assembly, and the bottom end of the oil baffle extends above the oil collecting trough.

[0017] As an optional solution of the above-mentioned smoke hood module, the height of the filter screen and / or the oil baffle gradually decreases from front to back, the number of the spray pipe is at least one, and one of the spray pipes can spray toward the top of the filter screen and / or the oil baffle;

[0018] And / or, the oil baffle is detachably connected to the spray pipe.

[0019] As an optional solution of the above-mentioned smoke hood module, a hook is provided on a side of the oil baffle member facing the filter, and the hook is hung on the spray pipe.

[0020] As an optional solution of the above-mentioned fume hood module, the fume hood assembly is provided with a fixing portion, and the oil retaining member is detachably connected to the fixing portion.

[0021] As an optional solution of the above-mentioned hood module, the fixing portion is a stepped surface arranged at the bottom end of the hood assembly, one end of the oil baffle is detachably connected to the spray pipe, and the other end of the oil baffle is placed on the stepped surface;

[0022] Alternatively, the fixing portion is a support rod, the support rod is arranged parallel to the spray pipe, one end of the oil baffle is detachably connected to the spray pipe, and the other end of the oil baffle is detachably connected to the support rod.

[0023] A commercial range hood comprises a purification module and a fan module. The commercial range hood further comprises the above-mentioned fume hood module. The smoke collecting chamber, the purification module and the fan module are connected in sequence.

[0024] Beneficial effects of the utility model:

[0025] In the smoke hood module provided by the utility model, the spray mechanism includes a spray pipe and a spray port connected to the spray pipe, the spray port can spray toward the filter and the oil baffle, thereby spraying the cleaning medium onto the filter and the oil baffle, effectively cleaning the filter and the oil baffle, ensuring the filtering performance of the smoke hood module for oil smoke, and does not require manual disassembly and cleaning, so it is easy to use.

[0026] The commercial range hood provided by the utility model adopts the above-mentioned hood module, and there is no need to remove the oil retaining member and the filter screen for cleaning, so it is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the commercial range hood provided by the utility model;

[0028] Figure 2 It is a structural schematic diagram of the smoke hood assembly provided by the utility model;

[0029] Figure 3 It is a cross-sectional view of the commercial range hood provided by the utility model;

[0030] Figure 4 It is a structural schematic diagram of the oil retaining member and the spraying assembly provided by the utility model.

[0031] In the figure:

[0032] 100. Hood module; 101. Air inlet; 10. Hood assembly; 11. Side panel; 12. Back panel; 13. Bottom panel; 131. Oil collecting trough; 132. Oil drain port; 14. Support rod; 20. Filter; 30. Oil retaining member; 31. Hook; 40. Spray mechanism; 41. Water supply pipe; 42. Spray pipe; 43. Suspension member; 44. Nozzle; 441. First nozzle end; 442. Second nozzle end; 200. Purification module; 300. Fan module. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0034] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0036] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0037] Embodiment 1

[0038] This embodiment provides a commercial smoking machine for filtering and purifying oil smoke. Figure 1 As shown, the commercial smoking machine includes a hood module 100, a purification module 200 and a fan module 300. The hood module 100, the purification module 200 and the fan module 300 are connected in sequence. Under the action of the fan module 300, the oil smoke first enters the hood module 100 for oil smoke separation, and then enters the purification module 200 for purification, filtering out large oil smoke and particulate matter, and finally is discharged into the public flue through the fan.

[0039] Combination Figure 1 and Figure 2 As shown, the hood module 100 includes a hood assembly 10, a filter 20 and an oil baffle 30. The hood assembly 10 has an inner cavity, one end of the hood assembly 10 is open, the oil baffle 30 is arranged in the opening, and forms a smoke collecting chamber with the hood assembly 10. The smoke collecting chamber is connected to the purification module 200. The filter 20 is arranged in the smoke collecting chamber, and at least one side edge of the oil baffle 30 is spaced from the inner wall of the smoke collecting chamber to form an air inlet 101. Under the action of the fan module 300, the oil smoke flows along the side surface of the oil baffle 30 away from the filter 20, and the oil baffle 30 plays the role of guiding the oil smoke and condensing the oil smoke; under the guidance of the oil baffle 30, the oil smoke enters the smoke collecting chamber through the air inlet 101, and is filtered by the filter 20. The filtered airflow enters the purification module 200 for purification.

[0040] Optionally, the oil baffle 30 may be an oil baffle plate. The bottom end of the hood assembly 10 is open, the oil baffle plate is substantially parallel to the bottom plane of the hood assembly 10, and is located in the opening; the shape of the oil baffle plate is substantially the same as the shape of the opening, illustratively both are rectangular, and the oil baffle plate cooperates with the three side edges of the opening so that the other side edge of the oil baffle plate can be spaced apart from the opening to form an air inlet 101.

[0041] After the oil smoke passes through the filter 20, oil stains are attached to the filter 20. As the oil stains on the filter 20 increase, the oil stains gradually gather to form oil droplets, which are likely to drip on the surface of the oil baffle 30 facing the filter 20 (hereinafter referred to as the back side of the oil baffle 30). The oil stains attached to the filter 20 will affect the oil smoke purification effect, and as the oil stains increase, some of the oil stains may drip onto the stove or pot.

[0042] To facilitate the cleaning of the filter 20 and the oil baffle 30 and ensure the oil fume purification effect, the smoke hood module 100 also includes a spray mechanism 40 for spraying a cleaning medium. The spray mechanism 40 includes a spray pipe 42 and a spray port connected to the spray pipe 42. The spray port can be directed toward the filter 20 and the oil baffle 30 respectively, so as to spray the cleaning medium onto the filter 20 and the oil baffle 30, effectively cleaning the filter 20 and the oil baffle 30, thereby ensuring the oil fume filtering performance of the smoke hood module 100. It does not require manual disassembly and cleaning, and is easy to use.

[0043] Alternatively, the cleaning medium may be water, or a mixture of water and an oil cleaning agent.

[0044] In this embodiment, the spray port includes a first spray port and a second spray port. The first spray port is arranged toward the filter screen 20, and is used to spray a cleaning medium toward the filter screen 20 to clean the filter screen 20; the second spray port is arranged toward the oil baffle 30, and is used to spray a cleaning medium toward the oil baffle 30 to clean the oil baffle 30. By providing the first spray port and the second spray port, the filter screen 20 and the oil baffle 30 can be cleaned at the same time, shortening the cleaning time and improving the cleaning efficiency; the first spray port and the second spray port both provide the spray medium through the spray pipe 42, which is conducive to simplifying the pipeline structure and reducing costs.

[0045] In some embodiments, the spraying area of ​​at least part of the spray outlet on the spray pipe 42 can cover part of the filter 20 and part of the oil baffle 30 at the same time. That is, the cleaning medium sprayed from the same spray outlet can partially cover the filter 20 and partially cover the oil baffle 30, so that the spray mechanism 40 can meet the cleaning requirements of cleaning the filter 20 and the oil baffle 30 at the same time. At the same time, the number of openings on the spray pipe 42 can also be reduced, which is beneficial to reduce the impact of the spray outlet on the strength of the spray pipe 42 and reduce costs.

[0046] To improve the cleaning effect, the spray mechanism 40 further includes a nozzle 44, which is connected to the spray pipe 42 and has a spray port. By connecting the nozzle 44 to the spray pipe 42, the cleaning medium in the spray pipe 42 can be sprayed at high pressure to increase the force of flushing the filter screen 20 and the oil retaining member 30, thereby making it easier for the oil stain to fall off.

[0047] like Figure 3 and Figure 4 As shown, the nozzle 44 includes a first nozzle end 441 and a second nozzle end 442. The first nozzle end 441 and the second nozzle end 442 are both connected to the spray pipe 42. The first nozzle end 441 forms a first spray port and is arranged toward the filter 20 to clean the filter 20. The second nozzle end 442 forms a second spray port and is arranged toward the oil baffle 30 to clean the oil baffle 30.

[0048] The first nozzle end 441 is tilted upward to spray the cleaning medium toward the filter screen 20 , and the second nozzle end 442 is tilted downward to spray the cleaning medium toward the oil retaining member 30 .

[0049] In order to reduce the number of parts of the spray mechanism 40, the first nozzle end 441 and the second nozzle end 442 are an integrated structure. Figure 4As shown, the nozzle 44 is roughly Y-shaped, and the nozzle 44 also includes a main pipe part, a first nozzle end 441 and a second nozzle end 442 are arranged at an angle and are both connected to the main pipe part, and the main pipe part is used to connect the spray pipe 42. The cleaning medium provided by the spray pipe 42 first enters the main pipe part, flows in the main pipe part, and is sprayed out through the first nozzle end 441 and the second nozzle end 442 respectively.

[0050] In order to prevent the nozzle 44 from being clogged by oil and thus affecting the cleaning effect of the spray mechanism 40, the nozzle 44 can be detachably sealed to the spray pipe 42. Figure 4 As shown, the main pipe part of the nozzle 44 is connected to the spray pipe 42 by means of threaded cooperation. Specifically, the main pipe part is provided with an external thread, and the spray pipe 42 is provided with a threaded hole. The main pipe part cooperates with the threaded hole to realize a detachable connection between the nozzle 44 and the spray pipe 42, wherein the threaded connection can also play a sealing role to prevent leakage of the cleaning medium.

[0051] In some embodiments, the first nozzle end 441 and the second nozzle end 442 may also be separately arranged, that is, the first nozzle end 441 and the second nozzle end 442 are each connected to the spray pipe 42. This arrangement can adjust the number and position of the first nozzle end 441 and the second nozzle end 442 separately according to actual spraying needs.

[0052] When the first nozzle end 441 and the second nozzle end 442 are separately provided, threaded holes are provided on the spray pipe 42 corresponding to the first nozzle end 441 and the second nozzle end 442 , and the first nozzle end 441 and the second nozzle end 442 cooperate with the corresponding threaded holes.

[0053] In order to increase the spraying area of ​​the nozzle 44 on the filter 20 and the oil retaining member 30, the nozzle 44 can be a fan-shaped nozzle or a spiral nozzle. The fan-shaped nozzle can produce a high-impact fan-shaped spray area, and the spray angle range can be between 0°-110°. The large spray area is conducive to eliminating cleaning dead corners and improving the cleaning effect. The spiral nozzle is a solid cone or hollow cone nozzle 44, and the spray angle range can be 50°-170°. The spiral nozzle has a compact structure and an open flow channel, which can minimize liquid blockage and increase the spray flow rate, which is conducive to improving the cleaning effect.

[0054] It should be noted here that the fan-shaped nozzle and the spiral nozzle are both common nozzles 44. In this embodiment, any fan-shaped nozzle or spiral nozzle in the prior art can be used, and the specific structures of the fan-shaped nozzle and the spiral nozzle are not introduced in this embodiment.

[0055] In some embodiments, a spray port may be directly opened on the spray pipe 42 without providing the nozzle 44 , and the cleaning medium in the spray pipe 42 may be sprayed out by the flow pressure of the spray medium in the spray pipe 42 to achieve the cleaning purpose.

[0056] In this embodiment, the spray pipe 42 is arranged between the filter screen 20 and the oil retaining member 30, the spray pipe 42 extends in the left-right direction, both ends of the spray pipe 42 are respectively connected to the smoke hood assembly 10, and the number of nozzles 44 is at least two, and at least two nozzles 44 are arranged at intervals along the length direction of the spray pipe 42. By providing at least two nozzles 44, it is possible to ensure that there are at least two first spray ports and at least two second spray ports, and the first spray ports and the second spray ports are arranged at intervals in the left-right direction, which can increase the spray range of the spray structure, and ensure that the filter screen 20 and the oil retaining member 30 can be washed at all positions in the left-right direction, so as to improve the cleaning effect.

[0057] Optionally, at least two nozzles 44 are evenly spaced apart along the length direction of the spray pipe 42 so that the cleaning medium is evenly distributed on the filter screen 20 and the oil retaining member 30 .

[0058] Optionally, along the length direction of the spray pipe 42, the spray ranges of two adjacent first nozzle ends 441 (or two second nozzle ends 442) partially overlap to prevent a cleaning dead angle.

[0059] Since the length of the spray pipe 42 is relatively large, in order to avoid deformation of the middle part of the spray pipe 42 and thus affecting the cleaning effect, Figure 2 As shown, the spray mechanism 40 also includes a suspension member 43, which extends approximately vertically. The top end of the suspension member 43 is connected to the smoke hood assembly 10, and the bottom end of the suspension member 43 is connected to the middle section of the spray pipe 42 to prevent the middle section of the spray pipe 42 from deforming downward under the action of gravity.

[0060] Optionally, the bottom end of the hanging member 43 may include a sleeve, and the sleeve is sleeved on the spray pipe 42 to support the middle section of the spray pipe 42 .

[0061] In this embodiment, three suspension members 43 are provided, and the three suspension members 43 are symmetrically arranged relative to the midline of the length direction of the spray pipe 42, so that the spray pipe 42 is evenly stressed and the middle section of the spray pipe 42 is ensured to extend horizontally. In other embodiments, the number of suspension members 43 can be set according to actual needs, and can be one, two, or four or more.

[0062] like Figure 3As shown, in order to facilitate the collection of sewage after cleaning, the filter 20 and the oil baffle 30 are inclined in the front-to-back direction, and an oil collecting trough 131 is provided at the bottom of the smoke hood assembly 10, and the bottom ends of the filter 20 and the oil baffle 30 both extend above the oil collecting trough 131. After cleaning, the sewage moves along the surface of the filter 20 and the oil baffle 30 under the action of gravity, and the sewage on the filter 20 and the sewage on the oil baffle 30 will gather at their respective bottoms and flow into the oil collecting trough 131, and be discharged outward through the oil collecting trough 131. In this embodiment, there is no need to add an additional device for collecting and discharging sewage after cleaning, and the original oil collecting trough 131 in the smoke hood module 100 and the oil discharge port 132 connected to the oil collecting trough 131 are used to discharge sewage, which is conducive to simplifying the structure and reducing costs.

[0063] Optionally, the bottom ends of the filter screen 20 and the oil baffle 30 are both provided with drainage holes, and the drainage holes are located above the oil collecting tank 131 so that sewage can flow into the oil collecting tank 131 through the drainage holes.

[0064] Furthermore, the drainage hole on the filter screen 20 is located at the rear side of the drainage hole on the oil baffle 30 to prevent the sewage on the filter screen 20 from dripping onto the oil baffle 30 and causing secondary pollution to the oil baffle 30 .

[0065] In this embodiment, the smoke hood assembly 10 includes a top plate, a back plate 12, a bottom plate 13 and two side plates 11 arranged opposite to each other. The two side plates 11 are arranged in the left-right direction. The top plate, the back plate 12 and the side plates 11 are connected in pairs. The bottom plate 13 is connected to the back plate 12. An oil collecting tank 131 is formed on the bottom plate 13. Both ends of the spray pipe 42 are connected to the side plates 11.

[0066] Specifically, the filter 20 and the oil baffle 30 are both of a high front and low back structure, and the spray pipe 42 is close to the front end of the filter 20, so that the first nozzle end 441 and the second nozzle end 442 spray the cleaning medium from front to back, and the sprayed cleaning medium is concentrated on the top of the filter 20 and the oil baffle 30. The cleaning medium can flow downward along the surface of the filter 20 or the oil baffle 30 under the action of gravity, ensuring that each position on the filter 20 and the oil baffle 30 can contact the cleaning medium.

[0067] It can be understood that the angle between the first nozzle end 441 and the second nozzle end 442 varies with the distance between the filter screen 20 and the oil baffle 30. When the distance between the filter screen 20 and the oil baffle 30 is large, the angle between the first nozzle end 441 and the second nozzle end 442 increases accordingly to ensure that the first nozzle end 441 can spray toward the top of the filter screen 20 and the second nozzle end 442 can spray toward the top of the oil baffle 30; conversely, when the distance between the filter screen 20 and the oil baffle 30 is small, the angle between the first nozzle end 441 and the second nozzle end 442 decreases accordingly.

[0068] In some embodiments, the spray pipe 42 may also be arranged near the bottom end of the filter 20, so that the first nozzle end 441 and the second nozzle end 442 both spray the cleaning medium from back to front, and the spraying area of ​​the first nozzle end 441 is close to the top of the filter 20, so that the spraying medium can fully contact the oil stains on the filter 20 during the process of flowing downward along the surface of the filter 20; the spraying area of ​​the second nozzle end 442 is close to the top of the oil baffle 30, so that the spraying medium can fully contact the oil stains on the oil baffle 30 during the process of flowing downward along the surface of the oil baffle 30.

[0069] Optionally, the spray mechanism 40 further includes a water supply pipe 41 and a heating assembly, wherein the water supply pipe 41 is connected to the spray pipe 42, and the water supply pipe 41 is used to connect to a cleaning medium source so as to transport the spray medium into the spray pipe 42; the heating assembly is used to heat the spray medium to improve the cleaning effect. The heating assembly can be arranged upstream of the water supply pipe 41, in the water supply pipe 41, between the water supply pipe 41 and the spray pipe 42, or in the spray pipe 42.

[0070] Optionally, the water supply pipe 41 may pass through the top plate of the smoke hood assembly 10 and communicate with the spray pipe 42 , or the water supply pipe 41 may pass through the side plate 11 of the smoke hood assembly 10 and communicate with the spray pipe 42 .

[0071] In order to simplify the structure of the hood module 100, the oil baffle 30 can be detachably connected to the spray pipe 42. That is, the spray pipe 42 is used as a supporting structure of the oil baffle 30, and the original supporting structure of the oil baffle 30 can be omitted, thereby reducing the number of parts and reducing the cost of the hood module 100. In addition, the oil baffle 30 and the spray pipe 42 are detachably connected, and the oil baffle 30 can be easily disassembled to clean the front of the oil baffle 30, or to accelerate the draining of the filter 20 after the oil baffle 30 is removed.

[0072] In order to improve the stability of the oil baffle 30, the smoke hood assembly 10 is provided with a fixing part, which can cooperate with the spray pipe 42 to fix the oil baffle 30, so as to avoid the problem of unstable position of the oil baffle 30 caused by relying on only one spray pipe 42 to support the oil baffle 30.

[0073] In this embodiment, the fixing part is a support rod 14, and the support rod 14 is arranged parallel to the spray pipe 42. One end of the oil baffle 30 is detachably connected to the spray pipe 42, and the other end of the oil baffle 30 is detachably connected to the support rod 14. By fixing the opposite ends of the oil baffle 30 by the support rod 14 and the spray pipe 42 respectively, the stability of the oil baffle 30 can be improved.

[0074] Optionally, hooks 31 are provided on the back of the oil baffle 30 corresponding to the spray pipe 42 and the support rod 14, and the oil baffle 30 is fixed by cooperating with the spray pipe 42 or the support rod 14, which has a simple structure and is easy to disassemble and assemble.

[0075] In some embodiments, the oil baffle 30 may also be connected to the spray pipe 42 by snap-fitting, magnetic adsorption, or by screws. The oil baffle 30 may be connected to the support rod 14 by snap-fitting, magnetic adsorption, or by screws.

[0076] In some embodiments, the fixing portion is a step surface arranged at the bottom end of the smoke hood assembly 10, and the step surface includes a first abutting surface and a second abutting surface arranged at an angle. The other end of the oil baffle 30 can be placed on the step surface and abut against the first abutting surface and the second abutting surface respectively to achieve fixation.

[0077] Optionally, the front ends of the first abutting surface and the second abutting surface are both higher than the rear ends thereof, that is, the first abutting surface and the second abutting surface are both inclined upward from the horizontal plane to prevent the bottom of the oil retaining member 30 from being separated from the step surface.

[0078] Embodiment 2

[0079] This embodiment provides a commercial smoking machine, which is further improved on the basis of the first embodiment.

[0080] Since the oil smoke needs to come into contact with the filter 20, the oil stains on the filter 20 are greater than the oil stains on the oil baffle 30. The oil stains on the back of the oil baffle 30 are mostly oil droplets dripping from the filter 20. Therefore, the cleaning intensity required for the filter 20 is generally higher than the cleaning intensity required for the oil baffle 30.

[0081] To this end, the number of first spray ports in the present embodiment is greater than the number of second spray ports, so that the cleaning medium sprayed onto the filter 20 is greater than the cleaning medium sprayed onto the oil baffle 30, thereby increasing the cleaning intensity of the filter 20, reasonably allocating the cleaning medium, avoiding waste of resources, and at the same time shortening the cleaning time and improving the cleaning effect.

[0082] Optionally, the number of the first spray ports may be 1-3 times the number of the second spray ports, for example, 1.2 times, 1.4 times, 1.5 times, 1.6 times, 1.8 times, 2 times, 2.2 times, 2.4 times, 2.5 times, 2.6 times, 2.8 times or 3 times.

[0083] The smoke hood assembly 10 also includes an air outlet connected to the purification module 200, and the air outlet connects the smoke collecting chamber and the purification module 200. The airflow through the filter 20 enters the purification module 200 under the action of the fan module 300. Since the airflow needs to pass through the air outlet to enter the purification module 200, there is more oil attached to the position corresponding to the air outlet on the filter 20. For the convenience of introduction, the area corresponding to the air outlet on the filter 20 is defined as the oil accumulation area, and the other areas on the filter 20 are non-oil accumulation areas. It can be understood that the oil attached to the oil accumulation area is greater than the oil attached to the non-oil accumulation area. Therefore, the cleaning intensity required for the oil accumulation area is greater than the cleaning intensity required for the non-oil accumulation area.

[0084] It should be noted here that the area on the filter 20 corresponding to the air outlet can be understood as the area on the filter 20 directly facing the air outlet, or the area on the filter 20 close to the air outlet.

[0085] For example, in combination Figure 1 As shown, since the purification module 200 is arranged above the hood assembly 10 and close to the left end, the air outlet can be arranged on the top plate of the hood assembly 10 and close to the left end of the top plate, the oil accumulation area is located on the left side of the filter 20, and the projection of the air outlet on the filter 20 is roughly located in the oil accumulation area. When the air outlet is arranged on the back plate 12 of the hood assembly 10, the oil accumulation area is close to the rear end of the filter 20.

[0086] Optionally, the oil accumulation area can be obtained through experiments so that the area with high cleaning intensity on the filter 20 is consistent with the actual cleaning requirements.

[0087] In order to improve the cleaning effect and shorten the cleaning time, the distribution density of the first spray ports corresponding to the oil accumulation area is greater than the distribution density of the first spray ports corresponding to the non-oil accumulation area. In other words, more first spray ports spray toward the oil accumulation area, and fewer first spray ports spray toward the non-oil accumulation area.

[0088] Since the oil stains on the back of the oil baffle 30 are basically the oil drops dripping from the filter 20, the oil baffle 30 can also be divided into an oil accumulation area and a non-oil accumulation area. The oil accumulation area on the oil baffle 30 is opposite to the oil accumulation area on the filter 20, and has more oil stains, requiring a greater cleaning intensity. Correspondingly, the non-oil accumulation area on the oil baffle 30 is opposite to the non-oil accumulation area on the filter 20, and has less oil stains, requiring a smaller cleaning intensity. Therefore, the second spray port can be set one-to-one with the first spray port, and the distribution on the spray pipe 42 is the same, so that more second spray ports are directed toward the area with more oil stains on the oil baffle 30, and relatively fewer second spray ports are directed toward the area with less oil stains on the oil baffle 30.

[0089] In some embodiments, a plurality of first spray ports or a plurality of second spray ports may be evenly spaced apart in the left-right direction, so that there is less oil stain on the oil retaining member 30 and a better cleaning effect may be achieved.

[0090] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A hood module for a commercial range hood, the hood module comprising a hood assembly (10), a filter (20) and an oil baffle (30), the oil baffle (30) being connected to the hood assembly (10) to form a smoke collecting chamber, the filter (20) being arranged in the smoke collecting chamber, at least one side edge of the oil baffle (30) being spaced apart from the hood assembly (10) to form an air inlet (101), characterized in that: The fume hood module further comprises a spray mechanism (40) for spraying a cleaning medium, wherein the spray mechanism (40) comprises a spray pipe (42) and a spray port connected to the spray pipe (42), and the spray port can spray toward the filter screen (20) and the oil retaining member (30).

2. The smoke hood module according to claim 1, characterized in that: The spray port comprises a first spray port and a second spray port, wherein the first spray port faces the filter screen (20) and the second spray port faces the oil blocking member (30).

3. The smoke hood module according to claim 2, characterized in that: The number of the first spray openings and the number of the second spray openings are both multiple, and the number of the first spray openings is greater than the number of the second spray openings; And / or, the smoke hood assembly (10) includes an air outlet connected to the smoke collecting chamber, the filter (20) and the oil baffle (30) both include an oil accumulation area and a non-oil accumulation area, the oil accumulation area is arranged close to the air outlet, the distribution density of the spray ports corresponding to the oil accumulation area is greater than the distribution density of the spray ports corresponding to the non-oil accumulation area, or the plurality of spray ports are evenly spaced along the left-right direction.

4. The smoke hood module according to claim 2, characterized in that: The spray mechanism (40) further comprises a nozzle (44) connected to the spray pipe (42), the nozzle (44) comprising a first nozzle end (441) and a second nozzle end (442), the first nozzle end (441) forming the first spray port and being arranged toward the filter screen (20), and the second nozzle end (442) forming the second spray port and being arranged toward the oil retaining member (30).

5. The smoke hood module according to claim 4, characterized in that: The first nozzle end (441) and the second nozzle end (442) are separately arranged or are an integrated structure; And / or, the nozzle (44) and the spray pipe (42) are detachably and sealably connected; And / or, the nozzle (44) is a fan-shaped nozzle or a spiral nozzle.

6. The smoke hood module according to any one of claims 1 to 5, characterized in that: The spray pipe (42) is arranged between the filter screen (20) and the oil baffle (30) and extends in the left-right direction. The number of the spray ports is at least two and they are arranged at intervals along the length direction of the spray pipe (42).

7. The smoke hood module according to claim 6, characterized in that: The spray mechanism (40) further comprises a hanging member (43), the top end of the hanging member (43) being connected to the smoke hood assembly (10), and the bottom end of the hanging member (43) being connected to the middle section of the spray pipe (42).

8. The smoke hood module according to any one of claims 1 to 5, characterized in that: The height of the filter (20) and / or the oil baffle (30) gradually decreases from front to back, an oil collecting groove (131) is provided at the bottom of the smoke hood assembly (10), and the bottom end of the oil baffle (30) extends above the oil collecting groove (131).

9. The smoke hood module according to any one of claims 1 to 5, characterized in that: The height of the filter screen (20) and / or the oil baffle (30) gradually decreases from front to back, and the number of the spray pipes (42) is at least one, wherein one of the spray pipes (42) can spray toward the top of the filter screen (20) and / or the oil baffle (30); And / or, the oil blocking member (30) and the spray pipe (42) are detachably connected.

10. A commercial range hood, comprising a purification module (200) and a fan module (300), characterized in that: The commercial range hood further comprises a hood module according to any one of claims 1 to 9, and the smoke collecting chamber, the purification module (200) and the fan module (300) are connected in sequence.

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