Modularized oil fume purifier

Abstract

The utility model relates to a modularized oil fume purifier, which belongs to the field of range hoods, and comprises a fume collecting module, an air inlet module, a purifying module, an air exhaust module and an electric control module, the smoke collecting module comprises a smoke collecting hood, a net disc assembly and an oil guide disc, the oil guide disc is in an inclined state, the lower edge of a rear plate of the smoke collecting hood extends towards a front plate to form a first oil collecting box, the low-position end of the oil guide disc is communicated with the first oil collecting box, the air inlet module comprises an air inlet channel, and an inlet of the air inlet channel is communicated with the smoke outlet; the purification module comprises a purification channel, and a purification mechanism is arranged in the purification channel; the air exhaust module comprises an air exhaust channel, a fan is arranged in the air exhaust channel, and the air inlet channel, the purification channel and the air exhaust channel communicate in sequence; the air inlet module, the purification module and the exhaust module are sequentially placed in the top of the exhaust fume collecting hood, and the air inlet module, the purification module and the exhaust module can be independently detached from the top of the exhaust fume collecting hood; and the electric control module is inserted into the front end of the purification module, so that the problems of high transportation cost and difficulty in maintenance are solved.

Description

Technical Field

[0001] This utility model relates to the field of range hoods, and in particular to a modular range hood purification machine. Background Technology

[0002] Commercial range hoods are professional fume purification and exhaust devices used in commercial kitchens. They are designed to efficiently collect and remove fumes, steam, and odors generated during cooking to maintain clean kitchen air and meet hygiene and environmental protection requirements. Due to various factors, commercial range hoods are generally quite large. For example, commercial kitchens typically have multiple stovetops, numerous cooking appliances, and frequent use, resulting in a much higher volume of fumes compared to residential kitchens. To ensure timely and effective fume extraction, commercial range hoods must possess powerful exhaust capabilities, with airflow typically ranging from 2000 to 15000 m³ / h. 3 / h, or even higher, and to achieve such a large air volume, it is necessary to equip it with a more powerful fan and motor. At the same time, the cross-sectional area of ​​the air duct also needs to be increased accordingly. The increase in the size of the fan and motor, as well as the expansion of the cross-sectional area of ​​the air duct, directly leads to the large size of commercial range hoods.

[0003] Due to their large size, commercial range hoods occupy a significant amount of transport space, resulting in a low loading rate per shipment. This often necessitates the use of more transport vehicles such as containers and trucks, thus increasing transportation costs. Furthermore, commercial range hoods are typically transported by road; however, their large size and weight frequently restrict transport due to height and weight regulations, significantly reducing efficiency and further increasing costs. Additionally, the irregular shape of commercial range hoods makes them difficult to securely fasten in transport vehicles, making them prone to displacement during sudden braking or turns, potentially leading to machine damage.

[0004] Secondly, commercial range hoods operate under high loads for extended periods, making their components highly susceptible to wear and tear. Furthermore, their complex structure integrates multiple functions, with each component installed in a compact and interconnected manner. When a component malfunctions, the repair space is extremely limited, disassembly is incredibly difficult, and it may even require the removal of other related components before repairs can begin. This undoubtedly significantly increases the complexity and difficulty of maintenance.

[0005] Meanwhile, the fumes produced by commercial kitchens contain a large number of grease particles, odors, and harmful gases such as PM2.5 and VOCs. From an environmental pollution perspective, direct emission would cause serious air pollution. From a health hazard perspective, long-term inhalation of harmful substances such as PM2.5 and benzo[a]pyrene in the fumes may induce respiratory diseases. In addition, if grease particles from the fumes enter components such as fans and exhaust ducts, it can lead to decreased equipment efficiency or even malfunction. Utility Model Content

[0006] In view of this, the present invention provides a modular fume purifier, which aims to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides a modular fume purifier, including a fume collection module, an air inlet module, a purification module, an exhaust module, and an electrical control module;

[0008] The smoke collection module includes a smoke collection hood, which includes a smoke outlet and a smoke inlet. A mesh tray assembly is disposed between the smoke outlet and the smoke inlet. The mesh tray assembly includes an oil filter screen. An oil guide plate is disposed directly below the mesh tray assembly and is inclined. The smoke collection hood includes a front plate and a rear plate. The lower edge of the rear plate extends towards the front plate to form a first oil collection box. The lower end of the oil guide plate is connected to the first oil collection box, and the length of the first oil collection box is not less than the length of the lower end of the oil guide plate. The air intake module includes an air intake channel, and the inlet of the air intake channel is connected to the smoke outlet. The purification module includes a purification channel, and a purification mechanism is disposed inside the purification channel. The purification mechanism is electrically connected to the electrical control module. The exhaust module includes an exhaust channel, and a fan is disposed inside the exhaust channel. The fan is electrically connected to the electrical control module.

[0009] The air inlet channel, the purification channel, and the exhaust channel are connected in sequence;

[0010] The air intake module, the purification module, and the exhaust module are placed sequentially on top of the smoke hood, and each of the air intake module, the purification module, and the exhaust module can be individually detached from the top of the smoke hood.

[0011] The front end of the electronic control module and the purification module are plugged in.

[0012] Optionally, the top of the smoke hood includes a limiting groove and a limiting block. The air inlet module, the purification module and the exhaust module are placed in the limiting groove in sequence. The gap between the air inlet module, the purification module and the exhaust module and the limiting groove is filled and fixed by the limiting block in an interference fit manner.

[0013] Optionally, the outlet of the air inlet channel is provided with a first flange, the inlet of the air outlet channel is provided with a second flange, the inlet of the purification channel is provided with a first groove that matches the first flange, and the outlet of the purification channel is provided with a second groove that matches the second flange. The first flange is inserted into the first groove, and the second flange is inserted into the second groove.

[0014] Optionally, the lower end of the oil guide plate is provided with a first through hole, and the lower end of the oil guide plate is connected to the first oil collection box through the first through hole.

[0015] Optionally, it also includes a second oil collection box, the bottom of which is provided with a first oil drain hole. The second oil collection box is located above the first oil collection box. The mesh tray assembly also includes an installation plate, the oil filter screen is located in the middle of the installation plate, the installation plate is in an inclined state, the lower end of the installation plate is provided with a second through hole, the lower end of the installation plate is connected to the second oil collection box through the second through hole, and a cleaning component is provided below the higher end of the installation plate. The cleaning component is used to clean the mesh tray assembly, and the cleaning component is electrically connected to the electronic control module.

[0016] Optionally, a hook is provided on the front plate, a U-shaped groove is provided in the first oil collection box, a connecting hole is provided at the high end of the oil guide plate, the low end of the oil guide plate is located in the U-shaped groove, and the barb of the hook passes through the connecting hole to connect the oil guide plate to the front plate.

[0017] Optionally, a second oil drain hole is provided at the bottom of the first oil collection box.

[0018] Optionally, it also includes a supplementary suction module, which includes a fan and a chamber. The fan is located on the top of the chamber. The front panel of the smoke hood is provided with a third through hole. The rear end of the chamber is provided with a pressing edge, which presses against the top of the smoke hood. The rear end of the chamber and the front panel of the smoke hood are connected by bolts.

[0019] Optionally, the replenishment module further includes a support plate located inside the chamber, the support plate dividing the interior of the chamber into a first chamber and a second chamber, the fan being disposed on the top of the first chamber, and a fourth through hole being provided on the support plate.

[0020] Optionally, it also includes a calibration square tube, which includes a square tube and a lifting eye screw. The two sides of the top of the smoke hood are provided with first fixing holes, and the two sides of the top of the cabin are provided with second fixing holes. The first fixing holes and the second fixing holes are for the lifting eye screw to be screwed in. The calibration square tube is used to fix the smoke hood and the cabin together. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.

[0023] Figure 1 This is a schematic diagram of the structure of a modular fume purifier according to an embodiment of this application;

[0024] Figure 2 This is a schematic diagram of the structure of a smoke collection module according to an embodiment of this application;

[0025] Figure 3 for Figure 2 Enlarged view of section V6;

[0026] Figure 4 This is a right-side structural schematic diagram of a smoke collection module according to an embodiment of the present application, excluding the left and right plates;

[0027] Figure 5 for Figure 4 Enlarged view of section V4;

[0028] Figure 6 This is a schematic diagram of the smoke collection module according to an embodiment of the present application, excluding the right plate;

[0029] Figure 7 for Figure 6 Enlarged view of section V5;

[0030] Figure 8 This is a schematic diagram of the structure of the oil guide plate and hook according to an embodiment of this application;

[0031] Figure 9 for Figure 8 Enlarged view of section V3;

[0032] Figure 10 for Figure 8 Enlarged view of section V2;

[0033] Figure 11 This is a schematic diagram of the air intake module according to an embodiment of this application;

[0034] Figure 12 This is a schematic diagram of the structure of a purification module according to an embodiment of this application;

[0035] Figure 13 for Figure 12 Enlarged view of section V1;

[0036] Figure 14 This is a schematic diagram of the structure of an exhaust module according to an embodiment of this application;

[0037] Figure 15 This is a schematic diagram of the structure of a replenishment module according to an embodiment of this application;

[0038] Figure 16 This is an exploded structural diagram of a supplementary absorption module according to an embodiment of this application;

[0039] Figure 17 This is an exploded structural diagram of the smoke collection module, the supplementary suction module, and the side plate according to an embodiment of this application;

[0040] Figure 18 For this Figure 17 Enlarged view of section V7. Detailed Implementation

[0041] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0042] refer to Figures 1-14 The modular fume purifier described in this embodiment includes a smoke collection module 1, an air inlet module 2, a purification module 3, an exhaust module 4, and an electrical control module 5. The smoke collection module 1 includes a smoke collection hood, a mesh tray assembly 12, an oil guide tray 13, and a first oil collection box 14.

[0043] The smoke hood includes a left panel 115, a right panel 116, a front panel 117, and a rear panel 118. The lower edge of the rear panel 118 extends towards the front panel 117, forming an L-shaped bend structure. This L-shaped bend structure and the rear panel 118 together form the receiving cavity of the first oil collection box 14. This receiving cavity is used to receive and store waste oil and can prevent waste oil from flowing back into the smoke hood or dripping onto the stove. In some embodiments, the first oil collection box 14 can also be a U-shaped structure. The first oil collection box 14 is fixed to the rear panel 118, and the interior of the U-shaped structure forms the receiving cavity of the first oil collection box 14. In some embodiments, the bottom of the first oil collection box 14 is provided with A second oil drain hole 141 is provided, which cooperates with a sealing plug. Under normal circumstances, the sealing plug tightly seals the second oil drain hole 141, keeping it in a normally closed state. When the waste oil in the first oil collection box 14 is full and needs to be drained, the sealing plug is removed to drain the waste oil from the first oil collection box 14. The second oil drain hole 141 can also be connected to an oil-resistant hose, the other end of which is connected to a recycling system (such as an underground oil sludge tank) to achieve automatic gravity drainage or automatic drainage assisted by a pump. With this structure, the waste oil in the first oil collection box 14 can be drained without disassembling it, making the operation more convenient.

[0044] The mesh disk assembly 12 is located inside the smoke collection module 1. The mesh disk assembly 12 includes multiple sub-mesh disk assemblies 12-1. The number of sub-mesh disk assemblies 12-1 is not limited. In this embodiment, there are 4 sub-mesh disk assemblies. The sub-mesh disk assembly 12-1 includes an oil filter screen (not shown in the figure). The oil filter screen can be used to intercept large particles of waste oil.

[0045] The oil guide plate 13 is inclinedly disposed directly below the mesh plate assembly 12, and is composed of a first sub-oil guide plate 13-1 and a second sub-oil guide plate 13-2. In specific implementations, it can also be composed of multiple sub-oil guide plates. This embodiment does not impose any restrictions. The oil guide plate 13 forms a certain angle A with the horizontal direction. In practical applications, the value of the angle A can be determined according to the size of the oil guide plate, the working environment of the fume purifier, or the characteristics of the waste oil. For example, if the waste oil has a high viscosity, a larger tilt angle may be required to make it flow smoothly, so as to use gravity to overcome the internal friction of the waste oil and allow the waste oil to flow faster on the oil guide plate. In this embodiment, the angle A is 20°. One end of the oil guide plate 13 is at a higher position, and the other end is at a lower position. The end at the higher position is defined as the high end of the oil guide plate 13, and the end at the lower position is defined as the low end of the oil guide plate 13. The low end of the oil guide plate 13 adopts a through-type design and is connected to the first oil collection box 14. With this design, the inclined surface of the oil guide plate 13 can guide the waste oil on it to flow towards the lower end under the action of gravity and enter the first oil collection box 14. The through-type design at the lower end can drain oil without obstruction, reduce the risk of blockage, and also allow the lower end to be cleaned directly without dead angles, achieving efficient collection and discharge of waste oil. At the same time, it reduces the amount of waste oil residue on the oil guide plate 13 and reduces the cleaning frequency.

[0046] In some embodiments, a first through hole 131 is provided at the lower end of the oil guide plate 13. The lower end of the oil guide plate 13 is connected to the first oil collection box 14 through the first through hole 131. The first through hole 131 can be a single hole or a multi-hole array. The multi-hole array allows the lower end of the oil guide plate 13 to retain part of the plate structure, making the overall structure of the oil guide plate 13 relatively complete. Compared with the oil guide plate 13 with a through-type design at the lower end, the more complete structure makes the oil guide plate 13 stronger. When subjected to pressure or other external forces, it is not easy to deform or be damaged, which helps to ensure the normal use and service life of the oil guide plate. It is suitable for use in scenarios with large vibrations. At the same time, the multi-hole array can precisely control the speed and flow rate of oil guiding. The diameter and number of the first through hole 131 can be designed according to the specific requirements of oil guiding, so that waste oil can flow out at a relatively stable speed, avoiding splashing or other problems caused by rapid and large-scale flow of waste oil.

[0047] In this embodiment, the length D1 of the first oil collection box 14 is not less than the length of the lower end of the oil guide plate 13, forming a full-coverage receiving structure of the first oil collection box 14 to the lower end of the oil guide plate 13. This structure ensures that the first oil collection box 14 can completely receive the waste oil flowing out from the lower end of the oil guide plate 13, effectively preventing waste oil from overflowing from the oil guide plate 13 and dripping onto the outside of the first oil collection box, thereby preventing waste oil leakage from polluting the surrounding environment. In addition, this structure can also make the contact area between the first oil collection box 14 and the lower end of the oil guide plate 13 larger, which can... To better balance the force transmitted by the oil guide plate 13 and improve the stability of the entire oil guiding and collecting system, especially when the oil guide plate 13 is subjected to certain pressure or vibration, it helps to reduce the risk of component damage caused by force imbalance and reduce the occurrence of system failures. In practical applications, the length D1 of the first oil collecting box 14 is preferably equal to the length of the lower end of the oil guide plate 13. This structure makes it easier for the oil guide plate 13 to be connected with the first oil collecting box 14 during installation, which can reduce the installation difficulty and significantly improve the accuracy and stability of the installation.

[0048] In some embodiments, the oil guide plate 13 is provided with a continuous closed oil-blocking edge 133 around its perimeter. The oil-blocking edge 133 bends towards the center of the oil guide plate 13 to form a bent edge 134, and its height forms a certain drop with the plate surface of the oil guide plate 13. Through this structure, the oil-blocking edge 133 constitutes a closed protective barrier. During the oil guiding process, when a high-speed airflow or oil droplet impacts the oil guide plate, this barrier can effectively block the lateral splashing of oil droplets, causing the splashing oil droplets to collide with the inner wall of the oil-blocking edge 133 and fall back to the plate surface of the oil guide plate 13. In addition, the oil-blocking edge 133 can also enhance the overall rigidity of the oil guide plate 13, and to a certain extent prevent the oil guide plate 13 from deforming due to external forces, thus extending its service life.

[0049] The gap between the oil guide plate 13 and the smoke collection hood forms the smoke inlet 112 of the smoke collection hood, and the smoke outlet 111 of the smoke collection hood is located on its top. The mesh plate assembly 12 is located between the smoke outlet 111 and the smoke inlet 112.

[0050] The top of the fume hood is provided with a limiting block 114 and a recessed limiting groove 113. The bottom of the limiting groove 113 is recessed to a certain depth relative to the top periphery of the fume hood, forming a module installation positioning reference surface to support the air intake module 2, purification module 3 and exhaust module 4. The air intake module 2, purification module 3 and exhaust module 4 are placed in the limiting groove 113 in sequence. The limiting block 114 fills the gap between the air intake module 2, purification module 3 and exhaust module 4 and the limiting groove 113 with a radial interference fit. This structure allows the air intake module 2, purification module 3 and exhaust module 4 to be disassembled separately from the top of the fume hood, reducing the maintenance difficulty of the equipment.

[0051] In other embodiments, the top of the fume hood is provided with a continuous convex guide rail along the arrangement direction of the left plate 115 and the right plate 116. The lower surfaces of the air inlet module 2, the purification module 3, and the exhaust module 4 are provided with guide grooves that match the aforementioned convex guide rails. The convex guide rails and guide grooves adopt a dovetail-shaped or other geometric interlocking structure. The two shapes are complementary and form a multi-directional constraint. By aligning the guide groove with the convex rail and sliding smoothly along the direction of the convex guide rail, the air inlet module 2, the purification module 3, and the exhaust module 4 can be slid into the top of the fume hood until they reach the preset limit position. Reverse sliding can achieve quick disassembly. This structure not only achieves the stable installation of the air inlet module 2, the purification module 3, and the exhaust module 4 on the top of the fume hood, but also supports the quick installation and disassembly of the air inlet module 2, the purification module 3, and the exhaust module without the aid of tools, improving the convenience of later maintenance of the equipment.

[0052] In this embodiment, the air intake module 2 includes an air intake channel, the inlet 21 of which is connected to the smoke outlet 111; the purification module 3 includes a purification channel, and a purification mechanism (not shown) is provided inside the purification channel. The purification mechanism can be any type of purification mechanism in the prior art, which will not be described in detail here; the purification mechanism is electrically connected to the electrical control module 5; the exhaust module 4 includes an exhaust channel, and a fan 43 is provided inside the exhaust channel. The outlet 42 of the exhaust duct is connected to the exhaust duct, and the fan 43 is electrically connected to the electrical control module 5; the air intake channel, the purification channel, and the exhaust channel are connected to each other in sequence to form a complete oil fume circulation path.

[0053] The front end of the purification module 3 is provided with a protrusion 33, and the rear end of the electronic control module 6 is provided with a slot that matches the protrusion 33. By inserting the protrusion 33 into the slot, the front end of the electronic control module 5 and the purification module 3 can be connected.

[0054] In the specific application of the modular fume purifier described in this embodiment, when the fan in the exhaust module is started, a negative pressure zone is instantly formed around it. At this time, the air outside the modular fume purifier is at normal atmospheric pressure. Under the action of the air pressure difference, the outside air is continuously drawn into the fan, thus forming airflow. In the complex environment of the kitchen, the fumes are mixed with the air. As the negative pressure generated by the fan drives the surrounding airflow, the fumes mixed in the air will be drawn into the fan together. The airflow provides power for the fumes, enabling them to overcome their own gravity and the resistance of the surrounding air and move towards the fan. The smoke collection module located above the stove is responsible for collecting cooking fumes. Because the air inlet and the exhaust outlet of the smoke collection hood are connected, the module not only effectively collects fumes but also guides them through the exhaust outlet into the air inlet. The fumes then enter the smoke collection hood from the inlet. The left and right panels of the hood prevent fumes from overflowing, improving collection efficiency. The fumes entering the hood often carry oil droplets. The mesh panel assembly between the inlet and outlet intercepts these droplets with its central oil filter, achieving initial purification. The intercepted droplets fall under gravity into the oil guide tray located directly below the mesh panel assembly. Oil droplets gradually accumulate on the oil guide plate, forming waste oil. Due to the inclined design of the oil guide plate, the waste oil flows into the oil collection box under gravity, effectively preventing oil droplets from entering the fan and exhaust duct, reducing the accumulation of oil inside the equipment. Simultaneously, the mesh plate component intercepts most of the grease, reducing the processing burden on subsequent purification modules and extending their service life. Because the air inlet, purification, and exhaust channels are sequentially interconnected, the fumes entering the air inlet module immediately enter the purification module for secondary purification. The fumes that have undergone secondary purification are then sucked into the fan and finally discharged outdoors through the exhaust duct. Through the two purification processes of the mesh plate component and the purification mechanism, the modular fume purifier successfully solves the air pollution problem caused by direct emission of fumes, effectively removing harmful substances from the fumes, protecting the health of chefs, diners, and other related personnel, while also reducing the corrosion of components such as the fan and exhaust duct by fumes, lowering the frequency and cost of cleaning and maintenance.

[0055] The modular fume purifier described in this embodiment includes a smoke collection module, an air inlet module, a purification module, an exhaust module, and an electrical control module. The smoke collection module includes a smoke collection hood, the top of which is provided with a limiting block and a recessed limiting groove. The bottom of the limiting groove is recessed to a certain depth relative to the top periphery of the smoke collection hood, forming a module installation positioning reference surface to support the air inlet module, purification module, and exhaust module. The air inlet module, purification module, and exhaust module are placed sequentially in the limiting groove. The limiting block fills the gap between the air inlet module, purification module, and exhaust module and the limiting groove with a radial interference fit. In this way, not only is a rigid constraint achieved between the air inlet module, purification module, and exhaust module, effectively suppressing vibration, but also ensuring vertical stability. Each module is detachable in the vertical direction. The front of the purification module has a protrusion, and the rear of the electrical control module has a matching slot. Inserting the protrusion into the slot allows for the connection between the electrical control module and the purification module. This structure not only ensures the secure installation of each module but also allows the air intake module, purification module, exhaust module, and electrical control module to be individually disassembled from the fume hood without tools. When transporting the modular fume purifier, it can be disassembled into the fume collection module, air intake module, purification module, exhaust module, and electrical control module for transport. This significantly reduces the transport space, effectively lowering transportation costs and reducing the risk of damage during transport. When the modular fume purifier needs to be assembled, it allows for rapid installation. Furthermore, when the equipment malfunctions and requires repair, the individually detachable structure allows for on-demand replacement or maintenance. Maintenance personnel do not need to disassemble the entire machine; they only need to operate on the module containing the faulty component to easily complete the repair or replacement work, greatly reducing the difficulty of maintenance and minimizing maintenance time and costs.

[0056] In some embodiments, the modular fume purifier described in this application has a first flange 221 at the outlet 22 of the air inlet channel and a second flange 411 at the inlet 41 of the exhaust channel. Correspondingly, a first groove 311 matching the first flange 221 is provided at the inlet 31 of the purification channel, and a second groove 321 matching the second flange 411 is provided at the outlet 32 ​​of the purification channel. During installation, the first flange 411 is inserted into the first groove 311, and the second flange 411 is inserted into the second groove 321.

[0057] This embodiment employs a flange and groove mating structure, allowing the air intake, purification, and exhaust modules to be tightly fixed by embedding the flange into the groove, offering numerous advantages. Firstly, it ensures accurate alignment of the air intake, purification, and exhaust channels during connection, guaranteeing airflow along the designed path and preventing airflow turbulence caused by misalignment. Secondly, this flange and groove insertion design enables rapid positioning and fixing of the air intake, purification, and exhaust modules, eliminating the need for bolts or welding, significantly simplifying the installation process. Furthermore, individual modules (such as the purification module) can be disassembled individually for easy cleaning or replacement, avoiding overall downtime and improving maintenance efficiency. Thirdly, the insertion connection provides a more stable connection, preventing relative displacement between modules and helping to maintain the overall structural stability of the modular fume purifier. This is especially beneficial during operation when subjected to vibration or other external forces, reducing malfunctions caused by loose connections.

[0058] The mating surfaces of the flange and groove can also form a physical barrier. If combined with a sealing ring or silicone pad, it can effectively reduce oil fume leakage and significantly improve purification efficiency. In addition, all modules use the same flange / groove specifications, supporting flexible combinations (such as adding purification modules to upgrade purification technology).

[0059] In some embodiments, the modular fume purifier described in this application further includes a second oil collection box 15. The second oil collection box 15 has a first oil drain hole 151 at its bottom and is installed above the first oil collection box. The sub-mesh assembly 12-1 further includes a mounting plate 121. The mounting plate 121 has a fifth through hole 1212 in its center and a first mounting hole 1213 on its body. By screwing a screw into the first mounting hole 1213, the oil filter can be installed on the fifth through hole 1212. The mounting plate 121 is tilted, with one end at a higher position and the other end at a lower position. One end is defined as the high end of the mounting plate 121, and the other end, which is at a lower position, is defined as the low end of the mounting plate 121. The low end of the mounting plate 121 is provided with a second through hole 1211. Through the second through hole 1211, the low end of the mounting plate 121 is connected to the second oil collection box 15. A cleaning component 16 is provided below the high end of the mounting plate 121. The cleaning component 16 includes a nozzle 161, a water storage box 163, and a water inlet 162. The water inlet 162 is used to connect a water pipe. The nozzle 161 can be composed of multiple nozzles according to actual needs. The cleaning component 16 is used to clean the mesh tray component 12 and is electrically connected to the electronic control module 5 to realize automatic cleaning control.

[0060] In this embodiment, when the electronic control module controls the cleaning component to open the nozzle, the nozzle begins to spray water. Since the nozzle is located below the high end of the mounting plate, the water sprayed from the nozzle can clean the mounting plate and the oil filter screen in the middle of the mounting plate. Furthermore, the impact force generated by the nozzle spraying water below the high end of the mounting plate can effectively loosen the oil stains attached to the mounting plate and the oil filter screen, and help push these oil stains towards the low end of the mounting plate, greatly improving the efficiency of oil stain collection and minimizing the residue of oil stains on the oil filter screen.

[0061] The mounting plate is tilted. When the nozzle sprays water, the water flows downwards along the tilted oil filter screen on the mounting plate under the action of gravity. This design allows the water flow to fully cover the entire surface of the oil filter screen, effectively washing away the oil and impurities attached to it. Compared with the horizontally set oil filter screen, the tilted design makes the water flow directional, avoiding cleaning dead corners and improving the thoroughness of cleaning. The washed-off oil flows down the inclined surface of the mounting plate to the lower end of the mounting plate, and then flows more smoothly into the second oil collection box through the second through hole at the lower end of the mounting plate, forming waste oil.

[0062] Meanwhile, by setting a first oil drain hole at the bottom of the second oil collection box, the waste oil accumulated in the second oil collection box can drip down through the first oil drain hole under the action of gravity, fall into the first oil collection box below, and finally be discharged to the outside through the first oil collection box.

[0063] In some embodiments, the cleaning component also has a heating function. Heating the water helps to melt the oil stains on the mesh disk component, resulting in a stronger cleaning effect.

[0064] In some embodiments, the modular fume purifier described in this application has a hook 1171 on the front panel 117 of the fume hood, a U-shaped groove 142 on the first oil collection box 14, a connection hole 132 on the high end of the oil guide plate 13, and the low end of the oil guide plate 13 located in the U-shaped groove 142. The barb of the hook 1171 passes through the connection hole 132 to connect the oil guide plate 13 to the front panel 117.

[0065] This embodiment utilizes a hook-and-connection-hole design that allows the oil guide plate to be quickly and accurately attached to the front panel of the fume hood. During installation, simply align the hook's barb with and pass it through the connection hole at the higher end of the oil guide plate to secure it to the front panel. No complex tools are required, significantly improving installation efficiency. Simultaneously, the engagement of the lower end of the oil guide plate with the U-shaped groove on the first oil collection box facilitates quick positioning and installation. Furthermore, this structure allows for easy disassembly of the oil guide plate. Simply remove it from the hook and pull it out of the U-shaped groove in the first oil collection box to remove it. This simple operation facilitates cleaning and maintenance.

[0066] In some embodiments, reference Figures 1-18 The modular fume purifier described in this application also includes a supplementary suction module 6, which includes a fan 61 and a chamber 62. The chamber 62 has a hollow internal structure. The fan 61 is located on the top of the chamber 62. The front plate 117 of the fume hood is provided with a third through hole 1172 and a third mounting hole 1173. The rear end of the chamber 62 is provided with a pressing edge 621 and a sixth through hole 622. The pressing edge 621 covers the top of the fume hood. The position of the sixth through hole 622 matches the third through hole 1172. The rear end of the chamber 62 is also provided with a fourth mounting hole 623, which corresponds to the third mounting hole 1172 on the front plate 117 and allows bolts to pass through. Thus, the rear end of the chamber 62 is fixed to the front plate 117 of the fume hood by bolts.

[0067] In some embodiments, the aforementioned supplementary suction module 6 also includes a lighting device (not shown). During kitchen cooking, the light above the stove may be blocked by people or other objects, resulting in shadows in the cooking area. The lighting device within the supplementary suction module can directly illuminate the stove surface and cooking utensils, allowing users to clearly see the cooking status of the food, such as color changes and doneness, helping to accurately control cooking time and heat, avoiding cooking mistakes due to insufficient light, and improving cooking results and food quality. The lighting device makes the interior and surrounding area of ​​the supplementary suction module clearly visible, making it easy for users to find oil stains and other dirt after use, facilitating cleaning. Simultaneously, it also helps maintenance personnel more accurately locate parts and fault points during range hood maintenance and repair, improving maintenance efficiency.

[0068] In complex kitchen environments, stoves generate large quantities of oil fumes that spread widely, often resulting in fume escape. This embodiment adds a supplementary suction module to the front of the smoke collection module. This module, powered by a fan, absorbs the escaped fumes. Under the fan's suction, the fumes are drawn into the chamber, then pass sequentially through the sixth through-hole at the rear of the chamber and the third through-hole on the front panel of the smoke hood, mixing with the fumes entering from the smoke inlet of the hood before proceeding to subsequent purification processes. In this way, the supplementary suction module and the smoke inlet work together, complementing each other to effectively capture fumes that might not be promptly absorbed by the inlet, improving the fume collection rate, reducing residual fumes in the kitchen, and maintaining clean kitchen air.

[0069] Meanwhile, the pressing process accurately determines the initial relative position of the supplementary suction module's chamber and the smoke collection hood, serving as a positioning tool and providing an accurate positional reference for subsequent bolt connections, ensuring installation accuracy. This pressing method also acts as a pre-fixation, maintaining a relatively stable positional relationship between the two before formal fixing, preventing significant displacement during installation and facilitating subsequent installation operations.

[0070] Based on the aforementioned embodiments, the modular fume purifier of this embodiment also includes a calibration square tube 17. The calibration square tube 17 includes a square tube 172 and a lifting eye screw 171. One end of the lifting eye screw 171 is a screw structure adapted to a threaded hole, and the other end is a lifting eye shape for easy operation. The square tube 172 has a third fixing hole into which the lifting eye screw can be screwed. The two sides of the top of the fume hood and the two sides of the top of the chamber 62 are respectively provided with a first fixing hole (not shown) and a second fixing hole, both of which are adapted to the lifting eye screw 171.

[0071] Align one end of the eye bolt 171 with the third fixing hole of the square tube 172 and screw it in. Utilizing the ease of applying force with the eye bolt, continue rotating until the bolt penetrates deep into the third fixing hole. Then, align the other end of the eye bolt 171, now screwed into the square tube 172, with the second fixing hole at the top of the hull 62 and continue screwing it in. Because the external thread of the eye bolt 171 matches the internal threads of the second and third fixing holes, the eye bolt 171 generates axial tension as it is rotated deeper. This tension continuously increases, causing the square tube 172 and the hull 62 to move closer together, eventually fitting tightly together.

[0072] Similarly, for the connection of the smoke hood, first screw one end of the eye bolt 171 into the third fixing hole of the square tube 172, and then screw the other end into the first fixing hole on the top of the smoke hood. During rotation, the eye bolt 171 generates axial tension through the thread engagement. As it is continuously tightened, the tension causes the square tube 172 and the smoke hood to gradually approach and fit tightly together. In this way, the square tube 17 is aligned to achieve a stable and fixed connection between the smoke hood and the cabin 62.

[0073] In this embodiment, when fixing the smoke hood and the supplementary suction module, the pressure edge of the rear end of the supplementary suction module's housing can be first pressed against the top of the smoke hood. Initial connection and fixation are achieved using bolts at the third and fourth mounting holes. After the alignment tube has fixed the smoke hood and housing, the aforementioned bolts are tightened. This method allows for quick determination of the relative position of the supplementary suction module and the smoke hood, avoiding installation difficulties caused by positional deviations during subsequent alignment tube installation, greatly improving installation accuracy and efficiency. After the alignment tube fixes the smoke hood and housing using eye bolts, it provides basic stability support for the entire connection structure. Tightening the initial connection bolts further enhances the connection's strength. The support of the alignment tube and the tightening of the bolts work together to distribute the stress on the connection points, ensuring a stable connection between the smoke hood and the supplementary suction module during long-term use, even under conditions such as vibrations and oil fume flow impacts in the kitchen. This reduces the risk of component loosening and extends the equipment's lifespan. Additionally, after the initial connection, if slight deviations are found in the relative positions of the fume hood and the chamber during the fixing process using the calibration tube, fine-tuning can be performed using the adjustability of the calibration tube during installation. For example, by rotating the lifting eye bolts, the fit between the tube and the fume hood or chamber can be adjusted appropriately to achieve positional correction. Once the position is accurately adjusted, tighten the bolts to ensure the precision of the equipment installation and optimize the fume collection effect. Because the relative positional accuracy between the supplementary suction module and the fume hood directly affects the fume collection efficiency, precise installation ensures that the supplementary suction module effectively captures escaped fumes.

[0074] In some embodiments, the replenishment module 6 further includes a support plate 63 located inside the chamber 62, the support plate 63 dividing the interior of the chamber 62 into a first chamber 624 and a second chamber 625, a sixth through hole 622 located at one end of the second chamber, a fan 61 disposed at the top of the first chamber 624, and a fourth through hole (not shown) disposed on the support plate 63.

[0075] In this embodiment, the internal space of the cabin is divided into a first compartment and a second compartment by a support plate. The fan is located at the top of the first compartment. When the fan is activated, the fumes are drawn into the first compartment by the fan's suction. Then, the fumes pass through the sixth through hole at the rear of the cabin and the third through hole on the front plate of the fume hood, merging with the fumes flowing in from the fume inlet of the fume hood, and then entering the subsequent purification process. Because the fumes drawn in by the fan have a high velocity and strong turbulence, if they are directly mixed with the main airflow at the fume inlet, it is very easy to interfere with the main airflow. However, this embodiment adopts a structure with two compartments and through holes connected in series. The compartments can act as buffer chambers, effectively reducing the velocity of the fumes by expanding the space. After the fumes are pretreated in the two-stage compartment, their velocity and pressure are close to those of the main airflow at the fume inlet. When the two mix, the impact can be significantly reduced, creating favorable conditions for the subsequent purification process, thereby effectively improving the purification efficiency.

[0076] In some embodiments, the modular fume purifier also includes a side panel 18, which covers the sides of the fume hood and the chamber 62 and can be used to prevent the side overflow of fumes. In specific applications, multiple modular fume purifiers may be used, which are connected by the left and right sides. In this scenario, the side panel 18 does not need to be installed at the connection point of the multiple modular fume purifiers.

[0077] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0078] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0079] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0080] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A modular range hood, characterized in that, The smoke collection module, the air inlet module, the purification module, the air exhaust module and the electric control module are included. The smoke collection module includes a smoke collection cover, the smoke collection cover includes a smoke outlet and a smoke inlet, a mesh disc assembly is arranged between the smoke outlet and the smoke inlet, the mesh disc assembly includes an oil filter mesh, a guide oil disc is arranged directly below the mesh disc assembly, the guide oil disc is in an inclined state, the smoke collection cover includes a front plate and a rear plate, the lower edge of the rear plate extends to the front plate to form a first oil collection box, the low end of the guide oil disc is communicated with the first oil collection box, and the length of the first oil collection box is not less than the length of the low end of the guide oil disc; the air inlet module includes an air inlet channel, the inlet of the air inlet channel is communicated with the smoke outlet; the purification module includes a purification channel, the purification channel is internally provided with a purification mechanism; the purification mechanism and the electric control module are electrically connected; the air exhaust module includes an air exhaust channel, the air exhaust channel is internally provided with a fan, and the fan and the electric control module are electrically connected. The air inlet channel, the purification channel and the air exhaust channel are sequentially communicated. The air inlet module, the purification module and the air exhaust module are sequentially placed in the top of the smoke collection cover, and the air inlet module, the purification module and the air exhaust module can be individually detached from the top of the smoke collection cover. The front ends of the electric control module and the purification module are inserted.

2. The modular range hood of claim 1, wherein, The top of the smoke collection cover includes a limiting groove and a limiting block, the air inlet module, the purification module and the air exhaust module are sequentially placed in the limiting groove, and the gap between the air inlet module, the purification module and the air exhaust module and the limiting groove is filled and fixed in an interference fit manner by the limiting block.

3. The modular range hood of claim 1, wherein, The outlet of the air inlet channel is provided with a first flange, the inlet of the air exhaust channel is provided with a second flange, the inlet of the purification channel is provided with a first groove matched with the first flange, the outlet of the purification channel is provided with a second groove matched with the second flange, the first flange is inserted into the first groove, and the second flange is inserted into the second groove.

4. The modular range hood of claim 1, wherein, The low end of the guide oil disc is provided with a first through hole, and the low end of the guide oil disc is communicated with the first oil collection box through the first through hole.

5. The modular range hood of claim 1, wherein, A second oil collection box is further included, the bottom of the second oil collection box is provided with a first oil discharge hole, the second oil collection box is located above the first oil collection box, the mesh disc assembly further includes a mounting disc, the oil filter mesh is located in the middle of the mounting disc, the mounting disc is in an inclined state, the low end of the mounting disc is provided with a second through hole, the low end of the mounting disc is communicated with the second oil collection box through the second through hole, and the high end of the mounting disc is provided below with a cleaning assembly for cleaning the mesh disc assembly, and the cleaning assembly is electrically connected with the electric control module.

6. The modular range hood of claim 1, wherein, A hook is arranged on the front plate, the first oil collection box is provided with a U-shaped groove, the high end of the guide oil disc is provided with a connecting hole, the low end of the guide oil disc is located in the U-shaped groove, and the barb of the hook penetrates through the connecting hole to connect the guide oil disc to the front plate.

7. The modular range hood of claim 1, wherein, The bottom of the first oil collection box is provided with a second oil discharge hole.

8. The modular range hood of claim 1, wherein, The supplementary suction module comprises a fan and a cabin body, the fan is located at the top of the cabin body, the front plate of the smoke collecting hood is provided with a third through hole, the rear end of the cabin body is provided with a pressing edge, the pressing edge is pressed on the top of the smoke collecting hood, and the rear end of the cabin body and the front plate of the smoke collecting hood are connected through bolts.

9. The modular range hood of claim 8, wherein, The supplementary suction module further comprises a supporting plate located inside the cabin body, the supporting plate divides the inside of the cabin body into a first cabin room and a second cabin room, the fan is arranged at the top of the first cabin room, and the supporting plate is provided with a fourth through hole.

10. The modular range hood of claim 8, wherein, The correction square tube comprises a square tube and a lifting ring screw, two side edges of the top of the smoke collecting hood are provided with first fixing holes, two side edges of the top of the cabin body are provided with second fixing holes, the first fixing holes and the second fixing holes are used for screwing in the lifting ring screw, and the correction square tube is used for fixedly connecting the smoke collecting hood and the cabin body.

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