Commercial range hood with plate-type electrostatic field capable of discharging air in multiple directions

Abstract

A commercial range hood with a plate-type electrostatic field capable of discharging air in multiple directions comprises an exhaust fume collecting hood, an oil fume purifier unit, a fan box, a fan and an air outlet, and the exhaust fume collecting hood is located at the bottom of the range hood; the oil fume purification unit is arranged above the exhaust fume collecting hood; the fan box is of an independent cube box body structure, detachable cover plates are arranged on the four side faces of the fan box, the cover plates are square, the cover plates are the same in size and can be interchanged, the cover plates are connected with the fan box through bolts, three of the four side faces of the fan box are closed cover plates, and one of the four side faces of the fan box is an air outlet cover plate. The fan is arranged in the fan box and connected with the fan box through the screw holes in the four corners of the base, the four screw holes of the base are arranged in a rectangular shape, the distances of the four edges are equal, the fan can be rotationally installed in the fan box conveniently, efficient oil smoke purification is achieved, installation is flexible, and various commercial kitchen requirements are met.

Description

TECHNICAL FIELD

[0001] The patent relates to a commercial range hood with a plate-type electrostatic field capable of multi-directional air outlet. BACKGROUND

[0002] Existing commercial range hoods generally adopt simple filtering and mechanical smoke exhaust design, combined with a single-direction air outlet structure. However, these traditional devices have significant technical deficiencies when dealing with high oil smoke volume and high pollution environment.

[0003] Poor oil fume purification effect: Most existing commercial range hoods use filter screens or single-stage electrostatic adsorption systems to purify oil fumes. However, filter screens are easily clogged with grease, and electrostatic adsorption is less efficient when dealing with high-concentration oil fumes, resulting in less clean exhaust fumes and environmental pollution.

[0004] Fixed air outlet direction and limited installation: Traditional range hoods generally use a single air outlet design, which requires a dedicated exhaust duct to be set up according to the air outlet direction. This is relatively cumbersome in the complex layout of commercial kitchens, and the diversity of kitchen scenarios often requires the range hood to be reinstalled with an exhaust duct in different spatial layouts, which is less flexible and limits the applicability of the range hood.

[0005] In summary, the technical background section of this patent aims to describe the current status of the existing technology, and there is an urgent need for an improved commercial range hood to improve oil fume purification, installation flexibility and safety. This section provides the necessary background information for understanding the technical contributions and innovation points of this patent. The signals disclosed in this background section are only intended to increase the overall understanding of this patent and should not be considered as any form of subjective awareness. CONTENT OF THE INVENTION

[0006] In view of the above, the purpose of this patent is to provide a commercial range hood with a plate-type electrostatic field capable of multi-directional air outlet to solve the technical problems of external exhaust and maintenance.

[0007] The technical scheme adopted for realizing the purpose of the patent is a commercial range hood with multi-directional air outlet of plate-type electrostatic field, comprising a smoke collecting hood, a smoke purifier unit, a fan box, a fan, and an air outlet, wherein the smoke collecting hood is located at the bottom of the range hood and is used for preliminarily collecting the cooking oil fume and guiding it to the smoke purifier unit; the smoke purifier unit is arranged above the smoke collecting hood and comprises a plurality of isolated electrostatic plates, which form a multi-stage plate-type high-voltage electrostatic field for capturing and filtering the oil fume particles; the fan box is a separate cubic box structure, the flange connection side of which is used for flange connection with the smoke purifier unit, a screw hole is arranged at the flange connection of the fan box, the detachable connection is realized through a screw, detachable cover plates are arranged on the four sides of the fan box, the cover plates are square, the size of each cover plate is the same and the cover plates are interchangeable, the cover plates are connected with the fan box through bolts, three sides of the four sides of the fan box are closed cover plates, and one side is an air outlet cover plate, the size of the air outlet cover plate is matched with the fan air outlet, the air outlet cover plate is connected to the air outlet through a flexible connection structure, and the air outlet direction is aligned with the air outlet cover plate.

[0008] Further, the flexible connection structure of the fan box is a flexible hose, which facilitates the position adjustment of the fan and the air outlet cover plate.

[0009] Further, the plate-type high-voltage electrostatic field in the smoke purifier unit comprises at least one plate-type electrostatic field unit, and the electrostatic field unit comprises charged plates and grounded plates arranged alternately.

[0010] Further, the smoke collecting hood further comprises a fireproof oil blocking plate, the fireproof oil blocking plate is located at the lower part of the smoke collecting hood, the oil blocking plate is an inclined metal plate, a plurality of inclined oil guide grooves are distributed on the plate surface, the oil guide grooves are arranged along the inclined direction of the main body of the oil blocking plate, and extend to the oil collecting groove at the lower end of the oil blocking plate.

[0011] The beneficial effects of the patent are as follows:

[0012] 1. Efficient oil fume purification

[0013] The multi-stage plate-type high-voltage electrostatic field purification unit adopted in the patent can efficiently adsorb oil fume particles through the high-voltage electrostatic field, significantly improves the oil fume purification effect, the multi-stage purification design enables the range hood to flexibly configure the number of electrostatic field stages according to different oil fume concentrations, effectively adapts to the purification needs in different cooking environments, compared with the traditional single-stage electrostatic plate, the multi-stage electrostatic plate design of the patent greatly improves the purification efficiency and reduces the emission pollution, and can meet the processing needs of high-concentration oil fume.

[0014] 2. Flexible multi-directional air outlet structure

[0015] The fan box of the patent has a unique multi-directional air outlet function. Through the configuration of four interchangeable cover plates, the air outlet direction of the fan can be flexibly adjusted. No matter how the kitchen space is arranged, the air outlet of the fan box can be simply adjusted to adapt to the exhaust duct. This structure not only facilitates installation, but also reduces the requirements for the installation site, greatly improving the applicability of the range hood, especially suitable for different types of commercial kitchen environments. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the patent or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the patent, and other drawings can also be obtained by those skilled in the art without creative labor.

[0017] Figure 1 is a structural schematic diagram of the patent;

[0018] Figure 2 is a schematic diagram of the right side installation structure of the fan box of the patent;

[0019] In the figure, 1 is a fireproof oil baffle, 2 is a smoke collecting hood, 3 is a cover plate, 4 is a fan box, and 5 is an oil smoke purifier unit. DETAILED DESCRIPTION

[0020] The patent will be described in this embodiment below according to the drawings and some embodiments.

[0021] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict, and the patent will be described in detail below with reference to the drawings and in combination with the embodiments.

[0022] As shown in Figures 1-2 , the patent relates to a plate type electrostatic field commercial range hood capable of multi-directional air outlet, specifically including a smoke collecting hood, an oil smoke purifier unit, a fan box, a fan and an air outlet, and the overall structural design aims to effectively collect and guide the oil smoke through the smoke collecting hood, concentrate the oil smoke to the oil smoke purifier unit, and then be absorbed by the fan, through the multi-directional air outlet function of the fan box, to realize efficient purification and flexible discharge of the oil smoke, and be suitable for installation requirements in various commercial occasions.

[0023] In this embodiment, the smoke collecting hood is located at the bottom of the range hood and is the lowermost structure of the device, and its role is to preliminarily collect the oil smoke generated during the cooking process. The smoke collecting hood prevents the oil smoke from spreading through physical blocking, and makes the oil smoke as concentrated as possible and guided to the oil smoke purifier unit. Through this preliminary concentration measure, the processing pressure of the subsequent purifier unit can be reduced.

[0024] In this embodiment, the oil fume purifier unit is located above the smoke hood and contains several isolated electrostatic plates, forming a multi-stage plate-type high-voltage electrostatic field. The main function of the oil fume purifier unit is to capture and filter oil fume particles. The electrostatic plate group in the oil fume purification unit forms a high-voltage electrostatic field through the charging and grounding of the electrodes, effectively capturing and adsorbing oil fume particles, thereby significantly reducing the emission concentration of oil fume and reducing environmental pollution.

[0025] In this embodiment, the oil fume purifier unit contains at least one stage of plate-type electrostatic field unit, each electrostatic field unit including alternating charged plates and grounded plates, forming a continuous and uniform electrostatic field, ensuring sufficient capture of oil fume particles of different sizes.

[0026] In this embodiment, each stage of electrostatic field is formed by alternating charged plates and grounded plates, forming a continuous and uniform electrostatic field. By increasing the number of stages of electrostatic field, the capture effect of oil fume particles can be enhanced. For example, in a commercial kitchen with high oil fume volume, a three-stage or even four-stage electrostatic field structure can be selected, while in a situation with low oil fume volume, a single-stage or double-stage electrostatic field configuration can be selected, balancing the purification effect and energy consumption.

[0027] In this embodiment, the fan box is a separate cubic box structure, connected to the flange of the oil fume purifier unit through the flange connection side. The fan box flange connection side is provided with a plurality of screw holes, facilitating the detachable connection of the fan box and the purifier through screws for ease of installation and maintenance.

[0028] In this embodiment, the connection between the fan box and the oil fume purifier unit adopts a conventional flange plate with bolt connection. The fan box side is provided with a mounting flange aligned with the flange on the side of the oil fume purifier unit. A plurality of screw holes are provided on the mounting flange, which can be fixed by bolts or screws. This structure not only realizes the stable connection of the fan box and the purifier unit, but also facilitates quick disassembly, making it convenient for cleaning, maintenance and replacement in the later stage.

[0029] In this embodiment, a sealing gasket is designed at the flange connection between the fan box and the oil fume purifier unit to improve the sealing effect of the overall device. The sealing gasket is generally made of high-temperature-resistant and corrosion-resistant materials such as silicone rubber and fluororubber. The selection of these materials can effectively resist the corrosion of high-temperature oil fume and prolong the durability of the sealing effect. When the fan box and the oil fume purifier unit are connected, the sealing gasket is compressed and deformed, tightly filling the contact surface between the flange connection, preventing the leakage of oil fume and particles. This sealing design is a common measure in ventilation systems and can effectively improve the overall performance of the oil fume purifier.

[0030] In this embodiment, the four sides of the fan box are provided with detachable cover plates, all of which are square and have the same size and can be used interchangeably. The cover plates are connected to the fan box by bolts to ensure the sealing of the outside of the fan box and can be interchanged to enable the fan box to realize multi-directional air outlet. Three sides of the four sides of the fan box are provided with closed cover plates, and the other side is provided with an air outlet cover plate matching the fan air outlet. The air outlet cover plate is connected to the fan box through a flexible connection structure, so that the air outlet direction is aligned with the air outlet of the cover plate, thereby adjusting the air outlet direction of the fan box according to the requirements of the installation site. In different installation situations, the position of the air outlet cover plate can be changed to realize air outlet from different sides of the fan box. In this way, the fan box meets the requirements of different exhaust duct layouts and space designs, especially for commercial kitchen environments that require flexible adjustment of the air outlet direction in limited space.

[0031] In this embodiment, the fan is arranged inside the fan box, and the base is fixed in the fan box through four corner screw holes. The screw holes are arranged in a rectangular layout with equal distances between the four sides. Such a screw hole arrangement structure is conducive to the rotational installation of the fan inside the fan box, allowing the air outlet direction of the fan to be changed. In combination with the multi-directional air outlet function of the fan box, the installation direction of the fan can be adjusted during installation to align the air outlet with the position of the air outlet cover plate of the fan box, realizing multi-directional air outlet effect. This design can meet the needs of different kitchen spaces and exhaust duct layouts, providing more installation convenience and flexibility for commercial kitchens. This method of fixing the fan is a common practice in the prior art, which is simple to install, stable in structure and reliable in use, and can ensure that the fan remains fixed in the fan box and reduce the impact of vibration during operation. For simplicity, technical details of this fixing method are not described here.

[0032] In this embodiment, to realize flexible connection of the fan and the air outlet cover plate, a flexible hose is used as the flexible connection structure of the fan box. The flexible hose not only can buffer the vibration generated during the operation of the fan, but also can effectively compensate for the deviation in position and angle between the fan air outlet and the air outlet cover plate, making the connection between the fan and the air outlet cover plate more stable and having a certain adjustment range. In different air outlet direction layouts, the flexible hose can be adjusted to achieve the best air outlet effect.

[0033] In this embodiment, the smoke collecting hood further comprises a fireproof oil baffle. The fireproof oil baffle is located at the lower part of the smoke collecting hood and is made of an inclined metal plate. The metal plate is provided with a plurality of inclined oil guide grooves on its surface, which are arranged along the inclined direction of the oil baffle body and extend to the oil collecting groove at the lower end of the oil baffle. This design not only can guide the oil in the oil fume to the oil collecting groove, reducing the adhesion and pollution of the oil fume in the purifier unit, but also has a certain fireproof effect, which can block and slow down the spread of fire when the oil fume is contacted by a fire source.

[0034] As Figure 2 In one embodiment, due to the requirement of the exhaust duct layout, the patent provides an installation scheme in which the fan box is installed on the right side and the air outlet is backward. In this installation method, the fan box is installed on the right side and is tightly connected with the oil smoke purifier unit through the flange interface. During installation, a plurality of screw holes reserved on the flange connection side are used to firmly fix the fan box on the side of the oil smoke purifier unit by screws, so as to realize stable connection. The left side of the fan box is connected with the oil smoke purifier unit, the lower side is the oil smoke inlet, and the remaining sides are arranged as follows: front cover plate: a closed cover plate is arranged to close the front side of the fan box; upper cover plate: a closed cover plate is arranged to close the upper part of the fan box; right cover plate: a closed cover plate is arranged to close the right side shell of the fan box; rear cover plate: the air outlet cover plate is located at the rear of the fan box, and the air outlet of the fan is also installed towards the rear. The air outlet cover plate is aligned with the air outlet of the fan to realize rear air outlet.

[0035] The specific embodiments of the patent are only illustrative and do not limit the protection scope of the patent. Without departing from the spirit and essence of the patent, various changes and modifications can be made to the specific embodiments of the patent. These changes and modifications all belong to the scope covered by the patent.

[0036] It is worth noting that in the description of the patent, the meaning of "multiple" is two or more, unless otherwise explicitly specified. In the patent, unless otherwise explicitly specified and limited, the terms "installation", "connection", "connection", "fixing" and other terms should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected; the circuits described in the patent are commonly used circuits in the art, and other related components are commonly used components in the art. For those skilled in the art, the specific meaning of the above terms in the patent can be understood according to the specific circumstances.

[0037] For those skilled in the art, it is obvious that the patent is not limited to the details of the above exemplary embodiments, and the patent can be implemented in other specific forms without departing from the spirit or essential characteristics of the patent. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the patent is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the essential elements of the claims are intended to be included in the patent. Any reference signs in the claims should not be considered as limiting the claims involved.

Claims

1. A commercial range hood with multi-directional air outlet of plate-type electrostatic field, comprising a smoke collecting hood, a smoke purifier unit, a fan box, a fan, and an air outlet, characterized in that: the smoke collecting hood is located at the bottom of the range hood, used for preliminarily collecting the cooking oil fume and guiding it to the smoke purifier unit; the smoke purifier unit is arranged above the smoke collecting hood, comprising a plurality of isolated electrostatic plates, forming a multi-stage plate-type high-voltage electrostatic field, and capturing and filtering the oil fume particles through the high-voltage electrostatic field; the fan box is a separate cube box structure, the flange connection side of which is used for flange connection with the smoke purifier unit, and the fan box flange connection is provided with screw holes, facilitating detachable connection through screws, and the four sides of the fan box are provided with detachable cover plates, which are square in shape, the same size and interchangeable, and connected with the fan box through bolts, among the four sides of the fan box, three sides are closed cover plates, and one side is an air outlet cover plate, the size of which matches the fan air outlet, and the air outlet cover plate is connected to the air outlet through a soft connection structure, so that the air outlet direction is aligned with the cover plate air outlet; the fan is arranged inside the fan box and connected with the fan box through the four corner screw holes of the base, which are arranged in a rectangular shape with equal distances between the four sides, facilitating the rotation and installation of the fan in the fan box, so that the air outlet direction is changed.

2. The plate-type electrostatic field multi-directional air discharging commercial range hood according to claim 1, characterized in that, The soft connection structure of the fan box is a flexible hose, facilitating the position adjustment of the fan and the air outlet cover plate.

3. The plate-type electrostatic field multi-directional air discharging commercial range hood according to claim 1, characterized in that, The plate-type high-voltage electrostatic field in the smoke purifier unit comprises at least one plate-type electrostatic field unit, and the electrostatic field unit comprises charged plates and grounded plates arranged alternately.

4. The plate-type electrostatic field multi-directional air discharging commercial range hood according to claim 1, characterized in that, The smoke collecting hood further comprises a fireproof oil baffle, which is located at the lower part of the smoke collecting hood, and the baffle is an inclined metal plate, and a plurality of inclined oil guide grooves are distributed on the plate surface, the oil guide grooves are arranged along the inclined direction of the baffle body and extend to the oil collecting groove at the lower end of the baffle.

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