CN220648364U - Fume exhaust fan - Google Patents

Abstract

The utility model relates to a range hood, which comprises a main body and at least one oil fume filtering device, wherein the main body is provided with one or more air inlet cavities, the oil fume filtering device comprises an oil fume filtering cylinder and an oil fume filtering ball, the oil fume filtering ball is detachably arranged in the oil fume filtering cylinder, and the oil fume filtering cylinder is detachably arranged in the air inlet cavities and corresponds to the fume inlet of the air inlet cavities. The oil fume filtering device in the range hood forms a multi-layer filtering structure, the oil fume filtering barrel can correspond to the fume inlet of the air inlet cavity, the interception effect of oil fume is guaranteed, the contact surfaces of the oil fume filtering barrel and the oil fume filtering ball are cambered surfaces, the contact area with the oil fume is increased, the interception and adsorption effects are further improved, the filtering effect of the range hood is further improved, the oil fume filtering barrel and the oil fume filtering ball can be detached for cleaning or replacement, so that accumulation of oil dirt caused by long-time filtering can be avoided, and the filtering effect of the range hood is further improved.

Description

Fume exhaust fan

Technical Field

The utility model belongs to the technical field of household appliances, and particularly relates to a range hood.

Background

As an indispensable kitchen appliance in modern home life, a range hood is used to suck the oil smoke generated during cooking and discharge the oil smoke to the outside, thereby purifying the kitchen environment. The existing range hood with wider use comprises an upper exhaust type range hood, and in the working process of the upper exhaust type range hood, the oil smoke enters a fan system after flowing through a filter screen and is exhausted into a public flue by means of the fan system.

The existing filter screen of the range hood is provided with a plurality of through holes on a single-layer metal net, and oil smoke is intercepted and condensed when flowing through the metal net, but the interception effect of the mode of filtering and intercepting the oil smoke is poor, so that a large amount of oil smoke can enter the fan, oil dirt is easily accumulated, bacteria are bred to generate peculiar smell, and the performance of the range hood can be influenced; the other is that the multi-layer metal net is mutually nested to realize multiple collision and interception to the oil smoke, although the oil smoke interception effect is improved, the multi-layer metal net is overlapped to cause the difficulty of cleaning oil dirt, and the multi-layer metal net can reduce the smoke inlet efficiency to further influence the performance of the range hood, so that the existing range hood has the problem of poor oil smoke filtering effect.

Disclosure of Invention

The utility model aims to at least solve the problem of poor oil smoke filtering effect of the conventional range hood. The aim is achieved by the following technical scheme:

the utility model provides a range hood, which comprises a main body and at least one oil fume filtering device, wherein the main body is provided with one or more air inlet cavities, the oil fume filtering device comprises an oil fume filtering cylinder and an oil fume filtering ball, the oil fume filtering ball is detachably arranged in the oil fume filtering cylinder, and the oil fume filtering cylinder is detachably arranged in the air inlet cavities and corresponds to a fume inlet of the air inlet cavities.

According to the range hood provided by the embodiment of the utility model, the oil smoke filtering device is arranged at the air inlet cavity of the main body, and comprises the oil suction filter cartridge and the oil suction filter ball, so that a multi-layer filtering structure is formed, the oil suction filter cartridge can correspond to the air inlet of the air inlet cavity, the interception effect of oil smoke is ensured, and the contact surfaces of the oil suction filter cartridge and the oil suction filter ball with the oil smoke are cambered surfaces, so that the contact area with the oil smoke is increased, the interception and adsorption effects are further improved, and the filtering effect of the range hood is further improved; in this embodiment, the oil absorption cartridge filter and the oil absorption filter ball are all detachable to be cleaned or replaced, so that the accumulation of oil dirt caused by long-time filtration can be avoided, the filtering effect of the range hood is further improved, and the problem of poor filtering effect of the oil smoke of the existing range hood is solved.

In addition, the range hood provided by the embodiment of the utility model can also have the following technical characteristics:

in some embodiments of the present utility model, the air intake chamber includes a first air intake chamber and a second air intake chamber, and the main body further includes a first housing located at an air outlet side of the first air intake chamber and the second air intake chamber, and the first air intake chamber and the second air intake chamber are connected to the first housing.

In some embodiments of the present utility model, the number of the oil fume filtering devices is two, and the oil suction filter cartridges of the two oil fume filtering devices are respectively inserted into the first air inlet cavity and the second air inlet cavity.

In some embodiments of the present utility model, a mounting round hole matched with the oil absorption filter cartridge is arranged in the air inlet cavity, and the mounting round hole extends inwards from the outer side surface of the main body.

In some embodiments of the present utility model, the oil absorbing filter cartridge is configured to snap-connect with the mounting hole when rotated to a set angle.

In some embodiments of the present utility model, the oil fume filtering device further includes a blocking cover, the blocking cover is connected to an end of the oil absorption filter cartridge, and a hand grip is further disposed on the blocking cover.

In some embodiments of the present utility model, the plugging cover is located outside the main body under the condition that the oil absorbing filter cartridge is installed in the air inlet cavity.

In some embodiments of the present utility model, the wall of the oil-absorbing filter cartridge and the spherical wall of the oil-absorbing filter ball are both provided with hollow structures.

In some embodiments of the utility model, the oil absorbing filter ball comprises a spherical shell and a filter element, wherein the spherical shell is arranged in a detachable structure, and the filter element is arranged in the spherical shell; wherein the filter element comprises activated carbon.

In some embodiments of the present utility model, the range hood further includes an air outlet seat located on an air outlet side of the main body, and a hose connector connected to the air outlet seat.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:

fig. 1 is a schematic structural view of a range hood;

fig. 2 is a left side view of the range hood;

FIG. 3 is a cross-sectional view taken along the direction A-A in FIG. 2;

fig. 4 is a schematic structural view of a fume filter in the range hood;

fig. 5 is an exploded view of a fume filter assembly of the range hood;

FIG. 6 is a front view of the closure of FIG. 5;

fig. 7 is an exploded view of the oil absorbing filter ball of fig. 5.

The various references in the drawings are as follows:

100. a range hood;

110. a first air inlet chamber; 111. a first smoke inlet; 112. installing a round hole; 113. an air inlet cavity end cover; 114. a seal ring; 115. a first screw; 120. a second air inlet chamber; 121. a second smoke inlet; 130. a first housing; 131. a volute cavity; 140. a volute; 150. a noise reduction cover; 160. a second housing; 170. a diversion fan cover; 180. an air outlet seat; 190. a hose connector;

200. a fume filter;

210. an oil-absorbing filter cartridge; 211. a first oil smoke through hole; 220. an oil absorption filter ball; 221. a first half shell; 222. a second half shell; 223. a second oil smoke through hole; 224. a filter element; 230. a blocking cover; 231. a hand grip; 232. a second screw; 233. and (5) identification.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

For ease of description, spatially relative terms, such as "inner," "outer," "lower," "below," "upper," "above," and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used herein interpreted accordingly.

The embodiment of the utility model provides a range hood, which has a good fume filtering effect. The range hood of the embodiment of the utility model can be an upper exhaust type range hood, a lower exhaust type range hood, a middle island type range hood and other forms of range hoods.

As shown in fig. 1 to 3, an embodiment of the present utility model provides a range hood 100, where the range hood 100 includes a main body and at least one oil smoke filtering device 200, one or more air inlet cavities are provided at the bottom of the main body, the oil smoke filtering device 200 includes an oil suction filter cartridge 210 and an oil suction filter ball 220, the oil suction filter ball 220 is detachably disposed in the oil suction filter cartridge 210, and the oil suction filter cartridge 210 is detachably mounted in the air inlet cavities and corresponds to the air inlet openings of the air inlet cavities. In one example, the oil absorbing filter cartridge 210 covers the inlet of the air inlet chamber so that all of the oil soot entering from the inlet can pass through the oil absorbing filter cartridge 210.

The range hood 100 shown in fig. 1-3 is an upper exhaust type range hood, and in this embodiment, only the upper exhaust type range hood is described as an example. As described above, the embodiment of the utility model is not limited to the upper exhaust type range hood, but may be other types of range hoods such as a lower exhaust type range hood, a middle island type range hood, and the like.

According to the range hood 100 provided by the embodiment of the utility model, the oil smoke filtering device 200 is arranged at the air inlet cavity of the main body, the oil smoke filtering device 200 comprises the oil smoke filtering cylinder 210 and the oil smoke filtering ball 220, a multi-layer filtering structure is formed, the oil smoke filtering cylinder 210 corresponds to the air inlet of the air inlet cavity, the oil smoke interception effect is ensured, the contact surfaces of the oil smoke filtering cylinder 210 and the oil smoke filtering ball 220 with the oil smoke are cambered surfaces, the contact area with the oil smoke is increased, the interception and adsorption effects are further improved, and the filtering effect of the range hood 100 is further improved; in this embodiment, the oil absorption filter cartridge 210 and the oil absorption filter ball 220 are both detachable to be cleaned or replaced, so that the accumulation of oil dirt caused by long-time filtration can be avoided, the filtering effect of the range hood 100 is further improved, and the detachable structure is convenient for cleaning by a user.

It should be understood that the fume in this embodiment is not limited to a simple fume component, and may be a mixed gas, and may further include air, gas with peculiar smell, and other components.

As shown in fig. 1 and 3, the main body of the range hood 100 includes an air intake chamber, a first housing 130, and a second housing 160 in this order from the bottom to the top. A scroll case 140 and a noise reduction cover 150 are provided in the first housing 130; a pod 170 is disposed within the second housing 160. During the operation of the range hood 100, as shown by the arrow direction in fig. 3, the oil smoke enters from the smoke inlet of the air inlet cavity, is filtered by the oil smoke filtering device 200, enters the first housing 130, is sucked into the volute cavity 131 of the first housing 130 by the exhaust fan in the volute 140, and is finally guided out by the air guide cover 170.

As shown in fig. 1 and 3, in some embodiments of the present utility model, the bottom of the main body is provided with two air intake chambers, which are illustratively provided as a first air intake chamber 110 and a second air intake chamber 120 which are bilaterally symmetrical, the first air intake chamber 110 and the second air intake chamber 120 being adjacent to and connected by a self-tapping screw or the like, and being connected by a first screw 115 as shown in fig. 3. On the basis, the first housing 130 is installed above the first air inlet cavity 110 and the second air inlet cavity 120, the volute cavity 131 is arranged in the first housing 130, the volute 140 is installed in the volute cavity 131, the noise reduction cover 150 is installed above the volute 140, the second housing 160 is installed above the first housing 130, the air guide cover 170 is installed inside the first housing 130 and the second housing 160, and the air guide cover 170 is used as a connecting air channel between the first housing 130 and the second housing 160 for enabling filtered air to circulate to the outside.

Further, as shown in fig. 1 to 3, in some embodiments of the present utility model, the range hood 100 further includes an air outlet seat 180 and a hose connector 190, wherein the air outlet seat 180 is connected to the top of the second housing 160, and may be specifically connected to an air outlet end of the air guide cover 170, and the hose connector 190 is connected to the air outlet seat 180 and is in communication with the interior of the second housing 160, and in this embodiment, the hose connector 190 is used to connect an air outlet hose, and the air outlet hose is used as an air outlet to communicate with an external flue, so that the air led out by the air guide cover 170 is discharged to the external flue through the hose connector 190 and the air outlet hose.

On the basis of the above embodiment, the number of the oil smoke filtering devices 200 is two, and the two oil smoke filtering devices 200 are respectively matched with the two air inlet cavities. As shown in fig. 1 and 3, the oil-absorbing filter cartridges 210 of the two oil-smoke filtering devices 200 are respectively inserted into the first air inlet chamber 110 and the second air inlet chamber 120, the oil-absorbing filter cartridge 210 inserted into the first air inlet chamber 110 is communicated with the first smoke inlet 111 for contacting and filtering the oil smoke entering from the first smoke inlet 111, and the oil-absorbing filter cartridge 210 inserted into the second air inlet chamber 120 is communicated with the second smoke inlet 121 for contacting and filtering the oil smoke entering from the second smoke inlet 121.

As shown in fig. 1, the first air inlet chamber 110 and the second air inlet chamber 120 are respectively provided with a mounting circular hole 112 matched with the oil absorbing filter cartridge 210, the mounting circular holes 112 extend inwards from the outer side surface of the main body, that is, the main body is respectively provided with the mounting circular holes 112 inwards from the left side and the right side, the side surface of each mounting circular hole 112 is communicated with one smoke inlet, and the oil absorbing filter cartridge 210 is inserted in the mounting circular hole 112 along the horizontal direction, so that the oil smoke entering from the smoke inlet contacts with the cartridge side surface of the oil absorbing filter cartridge 210, the contact area is increased, and the oil smoke interception effect is improved. On this basis, as shown in fig. 2 and 3, the two sides of the main body are further provided with an air inlet cavity end cover 113 and a sealing ring 114, so as to further improve the side tightness.

Further, during the process of mounting or dismounting, the oil absorbing filter cartridge 210 can move axially in the mounting circular hole 112 and rotate around the axis, and in some embodiments of the present utility model, when the oil absorbing filter cartridge 210 rotates to a set angle in the mounting circular hole 112, the oil absorbing filter cartridge 210 can be in snap connection with the mounting circular hole 112, so as to ensure the stability after the connection between the oil absorbing filter cartridge 210 and the main body. Illustratively, the inner wall of the installation circular hole 112 may be provided with a connection groove, and the outer sidewall of the oil absorbing filter cartridge 210 may be provided with a connection block, so that an operator may engage the connection block with the connection groove by rotating the oil absorbing filter cartridge 210 after the bottom end of the oil absorbing filter cartridge 210 is engaged with the bottom end of the installation circular hole 112, thereby achieving connection and locking. The connection manner between the oil absorbing filter cartridge 210 and the mounting circular hole 112 is not particularly limited in this embodiment, and may be set according to actual circumstances. The connecting block of the outer side wall of the oil-absorbing filter cartridge 210 can be a long connecting protrusion, and when the connecting block is in clamping connection with the connecting groove, the oil-absorbing filter cartridge 210 can be fixed inside and outside the mounting round hole 112, and the oil-smoke sealing effect can be achieved, so that the oil-smoke is prevented from overflowing from the connecting part of the oil-absorbing filter cartridge 210 and the mounting round hole 112.

According to the above embodiment, referring to fig. 4 and 5, the oil smoke filtering device 200 includes an oil smoke filtering cylinder 210 and an oil smoke filtering ball 220, wherein the wall of the oil smoke filtering cylinder 210 and the wall of the oil smoke filtering ball 220 can both supply oil smoke and adsorb oil smoke particles, and for example, in order to ensure the oil smoke to pass through, the wall of the oil smoke filtering cylinder 210 is partially or completely provided with a hollow structure, further, in order to improve the oil smoke passing efficiency and the oil smoke particle adsorption effect, and in order to increase the contact area between the oil smoke filtering ball 220 and the oil smoke to further improve the filtering effect, the wall of the oil smoke filtering cylinder 210 is completely provided with a hollow structure.

On the basis of the above embodiment, as shown in fig. 4, a plurality of first oil smoke through holes 211 are provided on the wall of the oil absorption filter cartridge 210, and the sizes of the plurality of first oil smoke through holes 211 may be the same or different, and the shapes thereof may be circular, square or other shapes, which is not particularly limited in this embodiment. Taking the example that the plurality of first oil smoke through holes 211 are arranged as a plurality of round holes with the same diameter, the plurality of first oil smoke through holes 211 are formed along the radial direction of the oil absorption filter cylinder 210 and penetrate through the cylinder wall, the plurality of first oil smoke through holes 211 are uniformly and densely distributed on the cylinder wall, when oil smoke flows through the oil absorption filter cylinder 210, the densely distributed plurality of first oil smoke through holes 211 can allow oil smoke to quickly pass through, and oil smoke particles can be adsorbed and stay in the holes, so that filtering is realized.

In some embodiments, the oil absorbing filter cartridge 210 includes at least two sub-filter cartridges detachably connected end to end, so that the oil absorbing filter cartridge 210 can be taken out from the mounting circular hole 112 even when the range hood is mounted in a narrow space, i.e., the entire oil absorbing filter cartridge 210 can be taken out by taking out the sub-filter cartridges one by one. Wherein, at least two end to end detachably connected sub-cartridge filters include first sub-cartridge filter and second sub-cartridge filter. The adjacent sub-filter cartridges can be spliced together end to end, and the end to end of the adjacent sub-filter cartridges can be detachably connected together by using the connecting piece. The connecting piece can be an elastic clip or an elastic ring with an opening, etc. When one sub-filter cartridge located near the outside is pulled out of the mounting circular hole 112, the connection position of the sub-filter cartridge and the other sub-filter cartridge is exposed outside the mounting circular hole 112, so that the sub-filter cartridge and the other sub-filter cartridge can be separated by manually operating the connection member therebetween, thereby separating the sub-filter cartridge from the range hood, and in this way, the other sub-filter cartridges can be separated from the range hood.

Further, as shown in fig. 4 and 5, referring to fig. 6 in combination, the oil smoke filtering apparatus 200 further includes a blocking cover 230, where the blocking cover 230 is matched with the oil smoke filtering cartridge 210, and it is understood that, since the oil smoke filtering ball 220 is detachably placed in the oil smoke filtering cartridge 210, the oil smoke filtering cartridge 210 has an open end for taking and placing the oil smoke filtering ball 220, the blocking cover 230 is connected to the open end of the oil smoke filtering cartridge 210, and is used for blocking the oil smoke filtering ball 220 in the oil smoke filtering cartridge 210, ensuring stability of the oil smoke filtering ball 220 in the oil smoke filtering cartridge 210, and preventing the open end of the oil smoke filtering cartridge 210 from overflowing, so as to further ensure filtering effect of the oil smoke filtering apparatus 200.

Further, in this embodiment, the plugging cover 230 and the oil absorbing filter cartridge 210 may be connected by a threaded connection, a snap connection, or a fastening connection, and in an alternative embodiment, as shown in fig. 5, the plugging cover 230 and the oil absorbing filter cartridge 210 are connected by a second screw 232, for example, a flat-head tapping screw may be selected, and the screw connection manner can ensure the stability of the connection.

In addition to the above embodiment, as shown in fig. 5 and 6, the outer side of the sealing cap 230 is provided with a grip 231, and the grip 231 may be provided as a handle or other structure capable of providing grip. As an example, referring to fig. 2 and 3 in combination, the outer side surface of the plugging cover 230 is provided as a concave surface, the hand holding portion 231 is provided as a spherical structure with a notch, and the spherical structure is protruded outwards and forms a containing space with the concave surface, so that the hand of the operator can be held by extending into the notch from the notch, and on the basis that the plugging cover 230 is connected with the oil absorption filter cartridge 210, the operator can screw and pull the oil smoke filter device 200 by holding the hand holding portion 231, thereby realizing actions of mounting and dismounting the oil smoke filter device 200. Further, as shown in fig. 3, under the condition that the oil absorbing filter cartridge 210 is installed in the air inlet chamber, the blocking cover 230 is located outside the main body, so that the operator can conveniently hold the oil absorbing filter cartridge.

Further, as shown in fig. 6, the outside of the blocking cover 230 may be further provided with a sign 233 for indicating the rotation direction of the oil smoke filtering apparatus 200, so that an operator can confirm the direction in which screwing is required when installing or removing the oil smoke filtering apparatus 200 by observing the sign 233. The rotation mark 233 may be a printed pattern or an engraved pattern, which is not particularly limited in this embodiment.

According to the above embodiment, the oil smoke filtering apparatus 200 includes at least one oil absorbing filter ball 220, the oil absorbing filter ball 220 is detachably disposed in the oil absorbing filter cartridge 210, and the number of the oil absorbing filter balls 220 may be one or more, as shown in fig. 5, in an alternative embodiment, the oil absorbing filter ball 220 is provided in plurality, and a plurality of oil absorbing filter balls 220 are filled in the oil absorbing filter cartridge 210, so that the interception and filtering effects of the oil smoke can be improved.

Further, as shown in fig. 7, the oil absorbing filter ball 220 is provided as a hollow sphere, which may be provided as a standard sphere, or may be provided as a olive sphere or other deformed sphere, which is not particularly limited in this embodiment, and is preferably provided as a standard sphere, so that it is convenient to manufacture and also to cooperate with the oil absorbing filter cartridge 210. Illustratively, the diameter of the oil absorbing filter ball 220 is slightly smaller than the inner diameter of the oil absorbing filter cartridge 210, and thus, a plurality of oil absorbing filter balls 220 are arranged in the oil absorbing filter cartridge 210 along the axial direction of the oil absorbing filter cartridge 210, and when the oil smoke flows through the oil filtering apparatus 200, the oil absorbing filter balls 220 are sequentially contacted with the side surface of the oil absorbing filter cartridge 210, the other side surface of the oil absorbing filter cartridge 210, thereby further increasing the contact area and improving the filtering effect.

As shown in fig. 7, the oil absorbing filter ball 220 in this embodiment includes a ball shell and a filter element 224, wherein at least a portion of the ball shell is configured as a hollow structure for oil smoke passing through and absorbing oil smoke particles, and the filter element 224 is detachably disposed in the ball shell for further filtering oil smoke and absorbing oil smoke particles. Illustratively, the spherical shell is all arranged to be hollow structure, so that the oil smoke can enter and exit the oil absorption filter ball 220 from 360 degrees in any direction, the oil smoke can pass through conveniently, the contact area between the hollow part and the oil smoke is increased, and the adsorption and filtration effects of the oil absorption filter ball 220 are improved.

The spherical shell of the oil absorption filter ball 220 can be hollowed out in a mode of arranging a through hole, and the hollowed-out part can be also formed in the process of integrally forming the spherical shell. In an alternative embodiment, as shown in fig. 7, the spherical shell includes a plurality of ribs extending in an arc shape, and the ribs are connected in a longitudinal and latitudinal manner, so as to form a spherical wall of the spherical shell, that is, the ribs are connected in a staggered manner to form the spherical shell, and the gaps between the ribs are used as oil smoke through holes on the spherical shell, and according to the above embodiment, the oil smoke filter cartridge 210 is provided with a plurality of first oil smoke through holes 211, and the oil smoke through holes on the oil smoke filter cartridge 220 in this embodiment are called second oil smoke through holes 223.

Further, the ribs have a set width from the outer side to the inner side of the spherical shell, and thus, the second soot through holes 223 configured between the intersecting ribs have a certain depth, for example, a depth of 0.5cm to 1.5cm, so that soot can be sufficiently contacted and soot particles can be adsorbed when soot flows therethrough. Each of the second oil smoke through holes 223 may be surrounded by three or more ribs, and for example, as shown in fig. 7, the second oil smoke through holes 223 may be surrounded by four ribs.

Further, please continue to refer to fig. 7, the joint surface of each rib is set to be a plane, the ribs in the warp direction are parallel, the ribs in the weft direction are parallel, the upper and lower hole walls of the plurality of oil smoke through holes formed by the ribs are parallel, the left and right hole walls are parallel, oil smoke circulation and oil smoke contact adsorption with the hole walls are facilitated, and the filtering effect is further improved.

In this embodiment, the spherical shell may be configured as an integrally formed structure, or may be configured as an assembled structure, and exemplary, the spherical shell is configured as an assembled structure, as shown in fig. 7, where the spherical shell includes a first half shell 221 and a second half shell 222, and the first half shell 221 and the second half shell 222 are buckled and detachably connected, and the manner of detachable connection is not only convenient for cleaning the spherical shell of the oil absorption filter ball 220, but also convenient for replacing the filter element 224 therein. The two-piece connection between the first half-shell 221 and the second half-shell 222 may be provided as a hinge or by means of a snap connection.

Further, the first half shell 221 and the second half shell 222 are symmetrical, and the radial dimensions of the first half shell 221 and the second half shell 222 are the same. As shown in fig. 7, a first flange is circumferentially disposed at the opening of the first half shell 221, and a second flange is circumferentially disposed at the opening of the second half shell 222, and when the first half shell 221 is engaged with the second half shell 222, the first flange is abutted with the second flange. On this basis, a buckle can be arranged on one side of the first flange facing the second flange, a clamping groove matched with the buckle is arranged on the second flange, and the buckle is clamped in the clamping groove, so that the first half shell 221 and the second half shell 222 are connected.

Referring to fig. 3 and 5, in some embodiments, in two adjacent oil-absorbing filter balls in the oil-absorbing filter cartridge 210, a junction 223a of a first half shell of a spherical shell of the first oil-absorbing filter ball 220a and a junction 223b of a first half shell of a spherical shell of the second oil-absorbing filter ball 220b and a second half shell of the spherical shell of the second oil-absorbing filter ball are perpendicular, so that a second oil-smoke through hole (may also be referred to as a second oil-smoke channel) 223 on the first oil-absorbing filter ball 220a is perpendicular to a second oil-smoke through hole (may also be referred to as a second oil-smoke channel) 223 on the second oil-absorbing filter ball 220 b. Under the action of negative pressure generated by an exhaust fan in the volute, after oil smoke passes through the oil absorption filter cylinder 210 from the oil smoke inlet (the second oil smoke inlet 111 or the second oil smoke inlet 121) for the first time, part of residual oil smoke can directly enter the first oil absorption filter ball 220a for continuous filtration, and after the oil smoke particles of the other part of oil smoke firstly strike the rib plate on the spherical shell of the second oil absorption filter ball 220b, or enter the second oil absorption filter ball 220b through the second oil smoke through hole 223 on the second oil absorption filter ball 220b, or diffuse to the side part of the second oil absorption filter ball 220b and enter the first oil absorption filter ball 220a for filtration, so that the contact times and contact area of the oil smoke and the spherical shell can be increased, and the oil absorption effect can be improved.

In particular, the soot particles of another part of soot first strike the rib plate on the spherical shell of the second soot-absorbing filter ball 220b, which is advantageous to break the large soot particles into smaller soot particles on one hand, and to increase the path of soot flowing through the filter ball on the other hand, which is more advantageous to the adsorption of the filter ball.

With continued reference to fig. 7, the oil absorbing filter ball 220 includes a filter element 224, where the filter element 224 is disposed inside the ball housing, and may be directly placed or fixed by a fixing member. And set up to the assembled structure according to the spherical shell, the inside filter core 224 of spherical shell is convenient for change, has further improved the long-term filter effect of oil absorption filter ball 220 to the peculiar smell in the accessible filter core 224 got rid of the oil smoke makes the exhaust gas of follow range hood more fresh. The filter element 224 in this embodiment at least includes activated carbon, and the activated carbon may be spherical, cubic or irregular, which is not limited in this embodiment, and the number of activated carbon may be one or more, wherein the size of the smallest activated carbon is larger than the size of the largest second oil smoke through hole 223 on the spherical shell, so as to prevent the activated carbon from leaking.

Further, the filter element 224 may further include a filter bag, where the filter bag is configured to be a breathable filter bag for ensuring that the oil smoke passes through, and the activated carbon is disposed in the filter bag and wrapped by the filter bag, so that the oil smoke sequentially passes through the spherical shell, the filter bag and the activated carbon for interception and adsorption when entering the oil absorption filter ball 220, and the filter bag is configured to not only store the activated carbon, but also further improve the filtering effect of the oil absorption filter ball 220.

The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims (10)

1. The utility model provides a range hood, its characterized in that, range hood includes main part and at least one oil smoke filter equipment, the main part is provided with one or more air inlet chamber, oil smoke filter equipment includes oil absorption cartridge filter and oil absorption filter ball, oil absorption filter ball detachably sets up in the oil absorption cartridge filter, oil absorption cartridge filter detachably installs in the air inlet chamber, and corresponds the inlet in air inlet chamber.

2. The range hood of claim 1 wherein the intake chamber comprises a first intake chamber and a second intake chamber, the main body further comprising a first housing positioned on an air outlet side of the first intake chamber and the second intake chamber, the first intake chamber and the second intake chamber being coupled to the first housing.

3. The range hood of claim 2, wherein the number of the oil fume filtering devices is two, and the oil fume filtering cartridges of the two oil fume filtering devices are respectively inserted into the first air inlet cavity and the second air inlet cavity.

4. The range hood according to claim 1, wherein the air inlet chamber is provided with a mounting circular hole matched with the oil suction filter cartridge, and the mounting circular hole extends inwards from the outer side surface of the main body.

5. The range hood of claim 4 wherein the oil absorbing filter cartridge is configured to snap-fit with the mounting aperture when rotated to a set angle.

6. The range hood of claim 1, wherein the oil smoke filtering device further comprises a blocking cover, the blocking cover is connected to the end of the oil suction filter cartridge, and a hand grip is further arranged on the blocking cover.

7. The range hood of claim 6 wherein said cover is positioned outside said main body during conditions in which said oil absorbing filter cartridge is mounted within said air intake chamber.

8. The range hood of claim 1, wherein the wall of the oil-absorbing filter cartridge and the spherical wall of the oil-absorbing filter ball are both provided with hollow structures.

9. The range hood of claim 1 wherein the oil absorbing filter ball comprises a spherical shell and a filter element, the spherical shell being configured in a removable configuration, the filter element being disposed within the spherical shell; wherein the filter element is activated carbon.

10. The range hood of claim 1 further comprising an air outlet seat positioned on the air outlet side of the main body and a hose connector connected to the air outlet seat.