Commercial range hood with filter tank plate type electrostatic field at tail end and capable of discharging air in multiple directions

Abstract

A commercial range hood with a filter tank plate type electrostatic field at the tail end and capable of discharging air in multiple directions comprises a range hood electrostatic field device and a direction assembly, the plate type range hood electrostatic field comprises a dust collection assembly and a filter tank plate assembly, the dust collection assembly comprises a cathode plate and an anode plate, a dust collection plate is arranged on the anode plate, and the filter tank plate assembly comprises a filter tank plate and a fixing part. Filter tank strips are arranged on the filter tank plate; the direction assembly comprises a fan and a fan box, the fan box comprises a fan box framework and a cover plate, the cover plate comprises a rotary cover plate and a closed cover plate, connecting holes are formed in the cover plate and the fan box framework, and bolts are arranged on the connecting holes. During use, most of electricity-attached oil smoke particles are adsorbed to the dust collecting plates, and part of escaped electricity-attached oil smoke particles are adsorbed to the inner walls of the filter tank plates, so that the escaped oil smoke particles are intercepted; the direction of the air outlet of the rotary cover plate is adjusted by adjusting the screwing length of the bolt.

Description

Technical Field

[0001] This utility model belongs to the field of range hoods, specifically a commercial range hood with an end filter plate electrostatic field that can output air in multiple directions. Background Technology

[0002] A range hood is a kitchen appliance used to purify the kitchen environment. Installed above the stove, it quickly removes the exhaust fumes from the stove and the harmful oil fumes produced during cooking, expelling them outdoors to reduce pollution and purify the air. However, existing range hoods have some unresolved problems during use: 1. In practical applications, some oil fume particles are not charged, and even if they are charged, they are not completely adsorbed onto the dust collection plate, or they are blown away by the wind after being adsorbed onto the plate, thus failing to be effectively intercepted and causing oil fumes to escape. These originally evenly distributed oil fume particles, after being affected by the electric field, are usually concentrated near the anode dust collection plate at the point where they escape from the electrostatic field, making it impossible to intercept these concentrated escape oil fume particles; 2. Currently, the upper part of the range hood is a fixed structure, manufactured in one piece according to the end user's needs, and the air outlet cannot be changed or adjusted according to the actual air outlet direction. Utility Model Content

[0003] In view of the above, this utility model provides a commercial range hood with an electrostatic field at the end with a filter groove plate that can discharge air in multiple directions, so as to solve the problems mentioned in the background art.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a commercial range hood with a plate-type electrostatic field with filter grooves at the end and multi-directional air outlet. The range hood includes a plate-type electrostatic field device for intercepting oil fumes and a directional component for changing the direction of the air outlet. The plate-type electrostatic field device and the directional component are installed on the range hood. The plate-type electrostatic field is provided with an air inlet and an air outlet. It includes a dust collection component for adsorbing oil fume particles and a filter plate assembly detachably connected to the plate-type electrostatic field. The dust collection component includes a cathode plate that can be connected to the negative terminal of a power supply and an anode plate that can be connected to the positive terminal of a power supply. The cathode plate and the anode plate are arranged alternately and longitudinally in the plate-type electrostatic field. The anode plate is provided with a dust collection plate for adsorbing oil fume particles. The filter plate assembly includes a filter plate that can communicate with the anode plate and a fixing component. The filter plate is installed at the air outlet of the plate-type electrostatic field through the fixing component. The filter plate is provided with multiple longitudinal filter grooves, and the filter grooves correspond to each anode plate.

[0005] The directional component includes a fan for extracting fumes and a fan housing for housing the fan. The fan housing includes a cubic fan housing frame and a cover plate. The front, top, rear, left / right sides of the fan housing are all detachable rotating covers. The bottom side of the fan housing is a closed cover plate integrally formed with the fan housing frame. The cover plate and the fan housing frame are provided with connection holes, and the connection holes are provided with rotatable bolts. The connection holes are located at the four included corners of each end face of the rotating cover plate and at the four included corners of each end face of the fan housing frame corresponding to the rotating cover plate. By adjusting the length of the bolts, the cover plate can be opened slightly upwards or downwards, changing the direction of the exhaust vent.

[0006] The bottom of the fan is provided with two parallel support frames, each with mounting holes at both ends. Each end face of the fan box frame is provided with threaded holes corresponding to the mounting holes. There are at least four threaded holes, and the holes are arranged in a square shape, so that the fan can rotate horizontally at 0°, 90°, 180°, and 270° inside the fan box.

[0007] Furthermore, the filter plate can be a multi-stage filter plate device, which includes a primary filter plate and a secondary filter plate.

[0008] Furthermore, the range hood is equipped with a switch, and a microcontroller is installed inside the switch. The plate-type electrostatic field device for oil fume and the switch are both electrically connected to the microcontroller. The range hood is operated through the microcontroller inside the switch.

[0009] Furthermore, the range hood is equipped with a power cord for connecting to an external power source. The output end of the power cord is connected to the input end of a switch, and the external power source is connected to the power cord to provide power to the range hood.

[0010] Furthermore, the air inlet of the fan box can be detachably connected to the left and right sides of the upper part of the range hood, respectively, so that the fan box can be installed on the left or right side of the upper part of the range hood.

[0011] Furthermore, it also includes a fixing plate installed above the range hood and symmetrically arranged opposite to the fan box. When the directional component is installed on the upper left side of the range hood, the fixing plate is installed on the upper right side of the range hood; when the directional component is installed on the upper right side of the range hood, the fixing plate is installed on the upper left side of the range hood.

[0012] Furthermore, the fan box is connected to the range hood via a flange, and the mounting plate is also connected to the range hood via a flange.

[0013] Furthermore, a leak-proof sealing ring is provided at the connection between the cover plate and the fan box frame to prevent air leakage.

[0014] The beneficial effects of this utility model are: 1. The cathode plate of the electrostatic field charges the oil fume particles. Under the action of the Coulomb force of the electrostatic field, the charged oil fume particles are adsorbed onto the dust collection plate, achieving the interception of most of the oil fume. When some of the escaped charged oil fume particles approach the filter plate, they are adsorbed onto the inner wall of the filter plate due to the Coulomb force, thereby achieving the interception of the escaped oil fume particles and improving the purification efficiency of the unit electrostatic field. The multi-stage filter plate can achieve the interception of multiple stages of escaped oil fume particles, achieving better purification efficiency; 2. During use, the directional component can be installed in a suitable position according to the actual situation, and the direction of the cover plate can be adjusted according to the actual situation to achieve the purpose of selecting the appropriate air outlet direction according to the actual site conditions. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the right-side orientation component of this utility model.

[0016] Figure 2 This is a schematic diagram of the connection between the right air outlet of the range hood and the left air inlet of the fan box.

[0017] Figure 3 This is a schematic diagram of the structure of the fourth rotating cover plate for exhausting air when the directional component of this utility model is positioned to the right, either upwards or downwards.

[0018] Figure 4 This is a schematic diagram of the left-side orientation component of this utility model.

[0019] Figure 5 This is a schematic diagram of the connection between the left air outlet of the range hood and the right air inlet of the fan box.

[0020] Figure 6 This is a schematic diagram of the structure of the fourth rotating cover plate for exhausting air when the directional component of this utility model is positioned to the left.

[0021] Figure 7 This is a cross-sectional view of the fan box of this utility model.

[0022] Figure 8 This is a structural schematic diagram of the fan of this utility model.

[0023] Figure 9 This is a top sectional view of the plate-type electrostatic field device for oil fume of this utility model.

[0024] exist Figure 1 - Figure 9In the middle, 1. Range hood; 101. Switch; 102. Microcontroller; 2. Power cord; 3. Plate-type electrostatic field device for oil fume; 301. Cathode plate; 302. Anode plate; 303. Dust collection plate; 304. Filter tray plate; 305. Filter tray strip; 4. Fan; 5. Fan box; 6. Fan box frame; 601. Threaded hole; 7. Support frame; 701. Mounting hole; 8. Rotating cover plate; 801. First rotating cover plate; 802. Second rotating cover plate; 803. Third rotating cover plate; 804. Fourth rotating cover plate; 9. Sealing cover plate; 10. Connecting hole; 11. Bolt. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and some embodiments.

[0026] exist Figure 1 - Figure 9Among them, a commercial range hood 1 with a plate-type electrostatic field with filter grooves at the end and multi-directional air outlet is disclosed. The range hood 1 is a common range hood in daily life, which can be a commercial range hood or a household range hood, such as the CXW-260-T70 model range hood. The range hood 1 includes a plate-type electrostatic field device 3 for intercepting oil fumes and a directional component for changing the direction of the air outlet. The directional component of the plate-type electrostatic field device 3 is installed on the range hood 1. The plate-type electrostatic field has an air inlet and an air outlet. It includes a dust collection component for adsorbing oil fume particles and a filter plate 304 component that is detachably connected to the plate-type electrostatic field. The device includes a cathode plate 301 that can be connected to the negative terminal of a power supply and an anode plate 302 that can be connected to the positive terminal of a power supply. The cathode plate 301 and anode plate 302 are arranged longitudinally and alternately within a plate-type electrostatic precipitator for oil fume. The anode plate 302 is equipped with a dust collection plate 303 for adsorbing oil fume particles. During use, a DC high voltage is applied to the plate-type electrostatic precipitator 3 by an external power supply. The cathode plate 301 of the electrostatic field discharges and charges the oil fume particles drawn in through the air inlet. Under the action of the Coulomb force of the electrostatic field, the charged oil fume particles are adsorbed onto the dust collection plate 303 of the anode plate 302, thus achieving electrostatic adsorption and purification of oil fume particles. Most of the oil fume particles are intercepted. The filter plate 304 assembly includes a filter plate 304 that can communicate with the anode plate 302 and a fixing component. The filter plate 304 is installed at the air outlet of the plate-type oil fume electrostatic field by the fixing component, which includes screws, nuts, and other components. The filter plate 304 is installed at the air outlet of the plate-type oil fume electrostatic field by screws. The filter plate 304 is provided with multiple longitudinal filter strips 305, and each filter strip 305 corresponds to each anode plate 302. A gap channel for air exhaust is provided between adjacent filter strips 305. 305 can be V-shaped, arc-shaped, C-shaped, trapezoidal, or trapezoidal in shape; making the interior of the filter plate 304 act as a slow-flowing, sheltered haven. When charged oil fume particles flow toward the filter plate 304, they will separate from the air in the oil fume due to inertia and the Coulomb force of the electrostatic field. The oil fume particles will rush toward the filter plate 304 due to inertia and be further adsorbed onto the filter strip 305 under the action of Coulomb force, while the air will disperse to both sides and be discharged through the gap channel between adjacent filter strips 305, thus better separating the oil fume particles from the air and achieving a good oil fume particle adsorption effect of the filter strip 305.

[0027] The directional assembly includes a fan 4 for extracting fumes and a fan housing 5 for housing the fan 4. The fan housing 5 includes a cubic fan housing frame 6 and cover plates. The front, top, rear, and left / right sides of the fan housing 5 are all detachable rotating cover plates 8. The rotating cover plates 8 include a first, second, third, and fourth rotating cover plates. When the fan housing 5 is positioned to the left, the front, top, rear, and left end faces of the fan housing 5 correspond sequentially to the first rotating cover plate 801, the second rotating cover plate 801, and the third rotating cover plate 801, respectively. 802, third rotating cover plate 803, fourth rotating cover plate 804; when the fan box 5 is positioned to the right, the four end faces of the fan box 5 (front, top, rear, and right) correspond sequentially to the first rotating cover plate 801, second rotating cover plate 802, third rotating cover plate 803, and fourth rotating cover plate 804. When the fan box 5 is positioned to the left, the rotating cover plate 8 changes to four non-overlapping air outlet directions: front-upward, front-downward, top-front, top-rearward, rear-upward, rear-downward, left-upward, and left-downward. When positioned to the right, the rotating cover 8 can be rotated to produce four non-overlapping air outlet directions: forward-upward, forward-downward, upward-forward, upward-backward, backward-upward, backward-downward, right-upward, and right-downward. The lower side of the fan box 5 is a closed cover 9 integrally formed with the fan box frame 6. The cover and the fan box frame 6 are provided with connection holes 10, and the connection holes 10 are provided with rotatable and detachable bolts 11. The connection holes 10 are located at the four included corners of each end face of the rotating cover 8 and at each of the four included corners of the fan box frame 6. At the four included corners of the end face corresponding to the rotating cover plate 8, the connecting holes 10 on the fan box frame 6 are relatively deep. When the rotating cover plate 8 is fitted against the fan box frame 6 and the bolts 11 are tightened, the rotating cover plate 8 is fixed to the fan box frame 6. When part of the bolt 11 is screwed into the connecting hole 10, the rotating cover plate 8 is a certain distance from the fan box frame 6. Therefore, by adjusting the length of the bolts 11, the cover plate can be opened slightly upwards or downwards, changing the direction of the air outlet and smoke exhaust port. Figure 3 As shown, when the fan box 5 is positioned to the right, and the right side of the range hood 1 is connected to the left side of the fan box 5's air inlet, and the fumes are discharged from the right end of the fan box 5, the rotating cover 8 on the right end of the fan box 5 becomes the fourth rotating cover 804. A small portion of the bolt 11 at the upper end of the fourth rotating cover 804 is screwed into the connecting hole 10 on the fan box frame 6, while the majority of the bolt 11 at the lower end of the fourth cover is screwed into the connecting hole 10 on the fan box frame 6, thus achieving the purpose of the fourth rotating cover 804 opening slightly upwards. Similarly, following the same method, the fourth rotating cover 804 has a total of four air outlets: slightly upwards, slightly downwards, slightly forwards, and slightly backwards. The slightly forward air outlet of the fourth rotating cover 804 overlaps with the slightly right air outlet of the first rotating cover 801. And so on, when the fan box 5 is positioned to the right, in conjunction with the change in the installation position of the fan 4 base within the fan box 5, there are a total of eight non-overlapping air outlet directions; similarly... Figure 6As shown, when the fan 4 is positioned to the left, it can also achieve eight non-overlapping air outlet directions; this fan box 5, which can change the direction of each air outlet, can achieve the function of 16 air outlet directions of the range hood 1 by combining with the left and right positions of the range hood 1.

[0028] The bottom of the fan 4 is provided with two parallel support frames 7. Each support frame 7 has mounting holes 701 at both ends. Each end face of the fan box frame 6 is provided with threaded holes 601 corresponding to the positions of the mounting holes 701. There are at least four threaded holes 601, and the holes of the threaded holes 601 are arranged in a square. It is preferable to have four threaded holes 601, so that the fan 4 can rotate horizontally at 0°, 90°, 180° and 270° in the fan box 5. The position of the fan 4 in the fan box 5 is adjusted according to the actual air outlet direction. The fan 4 is installed on the fan box frame 6 with screws and other parts, and cooperates with the rotating cover plate 8 to meet the needs of each air outlet.

[0029] In this embodiment, the filter plate 304 can be a multi-stage filter plate device, which includes a primary filter plate and a secondary filter plate. The primary and secondary filter plates are arranged horizontally in sequence at the outlet of the plate-type oil fume electrostatic field, and the filter bars 305 of the primary filter plate and the secondary filter plate are staggered. If, due to excessive wind speed, a large number of oil fume particles escape again after passing through the primary filter plate, a secondary filter plate can be set behind the adjacent primary filter plate. Similarly, according to actual needs, a third-stage, fourth-stage, or other multi-stage filter plate can also be set. The staggered filter bars 305 greatly enhance the interception and adsorption of oil fume particles, achieving a more efficient oil fume purification effect.

[0030] In this embodiment, the range hood 1 is equipped with a switch 101, and a microcontroller 102 is installed inside the switch 101. The plate-type electrostatic field device 3 for oil fume and the switch 101 are both electrically connected to the microcontroller 102. The switch 101 can be a common LCD panel, such as the ZZ-2020 model, iTC602TAT-2 model, etc. The range hood 1 is operated through the microcontroller 102 inside the switch 101.

[0031] In this embodiment, the range hood 1 is provided with a power cord 2 for connecting to an external power source. The output end of the power cord 2 is connected to the input end of the switch 101. The switch 101 is connected to the plate-type electrostatic field device for oil fume through the microcontroller 102. Therefore, the range hood 1 is powered by an external power source connected to the power cord 2.

[0032] In this embodiment, the air inlet of the fan box 5 can be detachably connected to the left and right sides of the upper end of the range hood 1, and the fan box 5 can be installed on the left or right side above the range hood 1.

[0033] In this embodiment, a fixing plate is also included, which is installed above the range hood 1 and symmetrically arranged with respect to the fan box 5. When the directional component is installed on the upper left side of the range hood 1, the fixing plate is installed on the upper right side of the range hood 1; when the directional component is installed on the upper right side of the range hood 1, the fixing plate is installed on the upper left side of the range hood 1.

[0034] In this embodiment, the fan box 5 is connected to the range hood 1 via a flange, and the fixing plate is also connected to the range hood 1 via a flange. Flange holes can be provided on the fan box 5 and the range hood 1 for flange connection.

[0035] In this embodiment, a leak-proof sealing ring is provided at the connection between the cover plate and the fan box frame 6 to prevent air leakage.

[0036] In this embodiment, the microcontroller 102 is a common electrical component, such as a single-chip microcomputer of model AT89C2051 or TMS320VC5509A.

[0037] In this embodiment, the fan 4 is a common centrifugal fan 4 device, such as 4-72 centrifugal fan 4309207303, B4-72 series centrifugal fan 4, etc.

[0038] In this embodiment, the control circuit of this utility model is a common circuit in the field of circuits. The device of this utility model can be connected to an external power source or a built-in battery through a power cord to provide power to the device. Those skilled in the art can implement it, so it will not be described in detail here.

[0039] In practical implementation, this invention is used by connecting to an external power source via power cord 2 and transmitting information to microcontroller 102 via switch 101. Microcontroller 102 receives and transmits the information. During cooking, the cathode plate 301 of the electrostatic field discharges and charges the oil fume particles. Under the influence of the Coulomb force of the electrostatic field, the charged oil fume particles are adsorbed onto the dust collection plate 303 of the anode plate 302, thus achieving electrostatic adsorption and purification of the oil fume particles and intercepting most of them. During the electrostatic adsorption and purification process, some oil fume particles are not effectively intercepted, causing oil fumes to escape. However, these escaped oil fume particles have already been subjected to the Coulomb force of the electrostatic field, and their distribution at the end of the electrostatic field will be relatively concentrated on the anode plate. Near 302, when escaped charged oil fume particles approach the filter bar 305 from near the anode plate 302, they are adsorbed onto the inner wall of the filter bar 305 due to the Coulomb force of the electrostatic field, thus intercepting the escaped oil fume particles and improving the purification efficiency of the unit's electrostatic field. If, due to excessive wind speed, a large number of oil fume particles escape again after passing through the primary filter plate 304, a secondary filter plate 304 can be installed behind the adjacent primary filter plate 304, greatly enhancing the interception and adsorption of oil fume particles and achieving a more efficient oil fume purification effect. The filter bar 305 can be designed in V-shape, C-shape, square shape, etc., so that the inside of the filter plate 304 is equivalent to a slow-wind haven, where charged oil fume particles... When the oil fume flows towards the filter plate 304, due to inertia and the Coulomb force of the electrostatic field, it separates from the air in the oil fume. The oil fume particles, due to inertia, rush towards the filter plate 304 and are further adsorbed onto the filter strips 305 under the Coulomb force of the electrostatic field. The air then disperses to both sides and is discharged through the gap between adjacent filter strips 305, better separating the oil fume particles from the air and achieving a good oil fume particle adsorption effect on the filter strips 305. When installing the fan 4, it can be adjusted according to the actual position. For example, when the fan box 5 is placed on the right, and the right side of the range hood 1 is connected to the left side of the fan box 5's air inlet, and the oil fume is discharged from the right end of the fan box 5, the rotating cover 8 on the right end of the fan box 5 becomes the fourth rotating cover 804. A small portion of the bolt 11 at the upper end of the rotating cover 804 is screwed into the connecting hole 10 on the fan box frame 6, while the majority of the bolt 11 at the lower end of the fourth cover is screwed into the connecting hole 10 on the fan box frame 6, thus achieving the purpose of the fourth rotating cover 804 opening slightly upwards. Similarly, following the same method, the fourth rotating cover 804 has a total of four air outlets: slightly upwards, slightly downwards, slightly forwards, and slightly backwards. The slightly forward air outlet of the fourth rotating cover 804 overlaps with the slightly right air outlet of the first rotating cover 801. And so on. When the fan box 5 is placed on the right, in conjunction with the change in the installation position of the fan 4 base inside the fan box 5, there are a total of 8 non-overlapping air outlet directions. Similarly, when the fan box 5 is placed on the left, there are also 8 non-overlapping air outlet directions, for a total of 16 non-overlapping air outlet directions.

[0040] It is worth noting that in the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified. In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] It will be apparent to those skilled in the art that this utility model patent is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model patent. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model patent is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be encompassed within this utility model patent. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A commercial range hood with a filter plate at the end and an electrostatic field that allows for multi-directional airflow, characterized in that: The range hood includes a plate-type electrostatic precipitator for intercepting oil fumes and a directional component for changing the direction of the air outlet. The plate-type electrostatic precipitator and the directional component are installed on the range hood. The plate-type electrostatic precipitator has an air inlet and an air outlet. It includes a dust collection component for adsorbing oil fume particles and a filter plate assembly detachably connected to the plate-type electrostatic precipitator. The dust collection component includes a cathode plate that can be connected to the negative terminal of a power supply and an anode plate that can be connected to the positive terminal of a power supply. The cathode plate and the anode plate are arranged alternately and longitudinally in the plate-type electrostatic precipitator. The anode plate has a dust collection plate for adsorbing oil fume particles. The filter plate assembly includes a filter plate that can communicate with the anode plate and a fixing component. The filter plate is installed at the air outlet of the plate-type electrostatic precipitator through the fixing component. The filter plate has multiple longitudinal filter strips, and the filter strips correspond to each anode plate. The directional component includes a fan for extracting fumes and a fan housing for housing the fan. The fan housing includes a cubic fan housing frame and a cover plate. The front, top, rear, left / right sides of the fan housing are all detachable rotating covers. The bottom side of the fan housing is a closed cover plate integrally formed with the fan housing frame. The cover plate and the fan housing frame are provided with connection holes, and the connection holes are provided with rotatable bolts. The connection holes are located at the four included corners of each end face of the rotating cover plate and at the four included corners of each end face of the fan housing frame corresponding to the rotating cover plate. By adjusting the length of the bolts, the cover plate can be opened slightly upwards or downwards, changing the direction of the exhaust vent. The bottom of the fan is provided with two parallel support frames, each with mounting holes at both ends. Each end face of the fan box frame is provided with threaded holes corresponding to the mounting holes. There are at least four threaded holes, and the holes are arranged in a square shape, so that the fan can rotate horizontally at 0°, 90°, 180°, and 270° inside the fan box.

2. A commercial range hood with a multi-directional air outlet via an electrostatic field and a filter plate at the end, as described in claim 1, is characterized in that: The filter plate is a multi-stage filter plate device, which includes a primary filter plate and a secondary filter plate.

3. A commercial range hood with a multi-directional air outlet via an electrostatic field and a filter plate at the end, as described in claim 1, is characterized in that: The range hood is equipped with a switch, and a microcontroller is installed inside the switch. The plate-type electrostatic field device for oil fume and the switch are both electrically connected to the microcontroller.

4. A commercial range hood with a multi-directional air outlet via an electrostatic field and a filter plate at the end, as described in claim 1, is characterized in that: The range hood is equipped with a power cord that connects to an external power source, and the output end of the power cord is connected to the input end of the switch.

5. A commercial range hood with a multi-directional air outlet via an electrostatic field and a filter plate at the end, as described in claim 1, is characterized in that: The air inlet of the fan box can be detachably connected to the left and right sides of the upper part of the range hood.

6. A commercial range hood with a multi-directional air outlet via an electrostatic field and a filter plate at the end, as described in claim 1, is characterized in that: It also includes a fixing plate installed above the range hood, symmetrically positioned opposite the fan box.

7. A commercial range hood with a multi-directional air outlet via an electrostatic field and a filter plate at the end, as described in claim 1, is characterized in that: The fan box is connected to the range hood via a flange, and the mounting plate is also connected to the range hood via a flange.

8. A commercial range hood with a multi-directional air outlet via an electrostatic field and a filter plate at the end, as described in claim 1, is characterized in that: The cover plate is fitted with a sealing ring at the connection point between it and the fan box frame to prevent air leakage.

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