CN215808708U - Smoke ventilator and electrostatic filter screen thereof - Google Patents

Abstract

The application provides a modified smoke ventilator and electrostatic filter screen thereof. One embodiment of the present application relates to an electrostatic screen (1) for a range hood, comprising an air inlet and an air outlet, comprising a drawer screen (6) and a drawer guide (2) adapted to carry said drawer screen (6); when the drawer type filter screen (6) is installed in the drawer guide rail (2), the drawer type filter screen (6) is positioned outside the air inlet and shields the air inlet. The drawer type filter screen is beneficial to reducing the adhesion of grease in the electrostatic filter screen, and the drawer type filter screen is easy to take off from the electrostatic filter screen and is convenient to clean.

Description

Smoke ventilator and electrostatic filter screen thereof

[ technical field ] A method for producing a semiconductor device

The application relates to the field of range hoods, in particular to an electrostatic filter screen for a range hood.

[ background of the invention ]

The electrostatic filter screen is a device for collecting oil smoke particles by utilizing the working principle of ionization and adsorption. The electrostatic filter screen is applied to the range hood and has good oil fume adsorption efficiency. However, grease is liable to adhere to the inside of the electrostatic filter, and frequent cleaning is required. Otherwise, the electrostatic filter screen cannot work normally, and even a short circuit occurs.

Unless otherwise supported by sufficient evidence, the prior art described herein is not meant to be an admission that such prior art is widely known to those of ordinary skill in the art to which this application pertains prior to the filing date of the present application.

[ summary of the invention ]

An object of the embodiment of this application is to provide an improved smoke ventilator and electrostatic filter thereof to above at least one technical problem.

One embodiment of the present application is directed to an electrostatic screen for a range hood, comprising an air inlet and an air outlet, comprising a drawer screen and a drawer guide adapted to carry the drawer screen; when the drawer type filter screen is installed in the drawer guide rail, the drawer type filter screen is positioned at the outer side of the air inlet and shields the air inlet. The drawer type filter screen is beneficial to reducing the adhesion of grease in the electrostatic filter screen, and the drawer type filter screen is easy to take off from the electrostatic filter screen and is convenient to clean.

In one possible design, the drawer guide rail comprises two U-shaped grooves, respectively provided at two edges of the air inlet; the openings of the two U-shaped grooves are oppositely arranged; when the drawer type filter screen is installed in the drawer guide rail, the two side edges of the drawer type filter screen are respectively embedded into the two U-shaped grooves.

In one possible design, a mounting opening communicating with the drawer rail is included; the drawer type filter screen is arranged to be suitable for being installed into the drawer guide rail through the installation opening in the horizontal direction or being pulled out of the drawer guide rail through the installation opening in the horizontal direction.

In one possible design, two sides of the mounting opening are respectively provided with a notch; when the drawer type filter screen is installed in the drawer guide rail, the side wall of the end head of the drawer type filter screen is exposed out of the notch. The arrangement of the notch is convenient for a user to hold the side wall of the end head to move the drawer type filter screen.

In one possible design, the air inlet is provided with a safety screen; when the drawer type filter screen is installed in the drawer guide rail, the drawer type filter screen is positioned outside the safety filter screen and shields the safety filter screen.

In one possible design, the drawer type filter screen comprises a second filter screen and a first filter screen which are arranged in sequence along the direction of the air flow; the first filter screen and the second filter screen are both provided with a plurality of strip-shaped air inlets and flanges which enclose the strip-shaped air inlets; the strip-shaped air inlets of the first filter screen and the second filter screen are arranged in a staggered manner; the flanging of the first filter screen and the flanging of the second filter screen are arranged in opposite directions.

In one possible design, the drawer screen further comprises an intermediate screen removably disposed between the first and second screens. This helps to reduce the adhesion of grease within the electrostatic screen.

In one possible design, the intermediate screen is in the form of a flat plate provided with a plurality of openings.

In one possible design, the drawer screen includes a third screen and a fourth screen; the first filter screen, the second filter screen, the third filter screen and the fourth filter screen are all in a groove shape and comprise peripheral walls and bottom walls; the third filter screen is embedded in the first filter screen, the peripheral wall of the third filter screen is attached to the peripheral wall of the first filter screen, and a certain space is formed between the bottom wall of the third filter screen and the bottom wall of the first filter screen at intervals; the fourth filter screen is embedded in the second filter screen, the peripheral wall of the fourth filter screen is attached to the peripheral wall of the second filter screen, and a certain space is formed between the bottom wall of the fourth filter screen and the bottom wall of the second filter screen at intervals; the third filter screen is attached to the fourth filter screen. This helps to reduce the adhesion of grease within the electrostatic screen.

In one possible design, the bottom wall of the third filter screen is in a flat plate shape provided with a plurality of meshes; the bottom wall of the fourth filter screen is in a flat plate shape provided with a plurality of meshes; the meshes of the third filter screen and the meshes of the fourth filter screen are arranged in a staggered mode. This helps to reduce the adhesion of grease within the electrostatic screen.

In one possible design, the electrostatic filter screen comprises a shell, and an ionization wire, an adsorption polar plate and a grounding polar plate which are arranged in the shell; the air inlet is located at the bottom surface of the shell, and the air outlet is located at the top surface of the shell.

In one possible embodiment, the housing is cuboid; the drawer type filter screen is plate-shaped.

Another embodiment of the present application relates to a range hood comprising a containment chamber and an electrostatic screen as described in any of the above; the electrostatic filter screen is arranged in the accommodating cavity; when the range hood operates, airflow firstly flows through the drawer type filter screen and then flows into the air inlet.

In one possible design, the electrostatic screen is adapted to be inserted into the accommodating cavity in a horizontal direction or to be drawn out of the accommodating cavity in the horizontal direction; when the electrostatic filter screen is fixed in the accommodating cavity, the drawer type filter screen is arranged to be suitable for being installed in the drawer guide rail along the horizontal direction or being pulled out of the drawer guide rail along the horizontal direction.

It should be noted that the appearances of the phrases "first," "second," "third," and "fourth" in this specification are for illustrative purposes only and are not intended to indicate relative importance; moreover, it is not a definition of the number of features that it defines; further, it is not a definition of a logical or sequential relationship to the features it defines.

The above summary of the present application is not intended to describe all possible implementations of the present application. Throughout this application, guidance is provided through lists of examples, which can be used in various possible combinations.

[ description of the drawings ]

The following drawings are merely illustrative and explanatory of the present application and do not limit the scope of the present application, wherein:

FIG. 1 is a schematic structural view of an embodiment of an electrostatic screen for a range hood according to the present application;

FIG. 2 is an exploded view of an embodiment of an electrostatic screen for a range hood according to the present application;

FIG. 3 is a schematic view of an electrostatic filter for a range hood according to an embodiment of the present disclosure without a drawer-type filter;

FIG. 4 is an exploded view of a drawer screen of an embodiment of an electrostatic screen for a range hood of the present application;

FIG. 5 is an enlarged view of a portion of the drawer screen of FIG. 4;

FIG. 6 is an enlarged view of a portion of the drawer screen of FIG. 4;

FIG. 7 is an enlarged view of a portion of the drawer screen of FIG. 4;

FIG. 8 is a schematic structural view of an embodiment of a range hood of the present application;

fig. 9 is a schematic view of another embodiment of an electrostatic screen for a range hood according to the present application without a drawer screen.

Reference numerals:

1-electrostatic filter screen, 2-drawer guide rail, 3-U-shaped groove, 4-mounting opening, 5-notch, 6-drawer type filter screen, 7-end side wall, 8-mesh opening, 9-peripheral wall, 10-bottom wall, 11-first filter screen, 12-second filter screen, 13-third filter screen, 14-fourth filter screen, 15-opening, 16-safety filter screen, 17-handle, 18-containing cavity, 19-machine shell, 20-smoke collecting hood, 21-first screw hole, 22-second screw hole, 23-third screw hole, 24-fourth screw hole and 25-air duct base.

[ detailed description ] embodiments

To make the objects, solutions and advantages of the present application more clear, the present application is further described below with reference to the accompanying drawings and preferred embodiments.

The application provides an electrostatic filter screen 1 embodiment for smoke ventilator, including casing, ionization silk, adsorption polar plate, ground plate, air inlet, gas vent, drawer type filter screen 6 and be suitable for bearing drawer type filter screen 6's drawer guide rail 2, as shown in fig. 1 to 3. The electrostatic filter 1 is rectangular as a whole. The ionization wire, the adsorption polar plate and the grounding polar plate are arranged in the shell. The air inlet is located at the bottom surface of the housing, and the air outlet is located at the top surface of the housing. The exhaust port is provided with a safety screen 16. The front side panel of the electrostatic screen 1 is provided with a handle 17, in particular, the handle 17 is provided on the front side wall of the housing. The drawer screen 6 and the drawer rail 2 are arranged below the bottom surface of the housing, in particular the drawer rail 2 is suspended from the bottom surface of the housing. The drawer screen 6 is in the form of a plate, as shown in fig. 2.

The drawer guide rail 2 comprises two U-shaped grooves 3 which are respectively arranged at two edges of the air inlet. The "U-shaped groove" is so called because it has a U-shaped cross-section. The openings of the two U-shaped channels 3 are arranged facing each other as shown in fig. 2 and 3. The two U-shaped grooves 3 are spaced to form an opening 15. When the drawer type filter 6 is installed in the drawer guide 2, the two side edges of the drawer type filter 6 are respectively inserted into the two U-shaped grooves 3, and the drawer type filter 6 fills the opening 15, as shown in fig. 1. After the drawer-type filter screen 6 is pulled out of the drawer guide rail 2, the opening 15 is exposed, and the ionization wire, the adsorption polar plate, the grounding polar plate and other components in the shell can be seen through the opening 15, which is approximately shown in fig. 9.

The electrostatic filter screen 1 further comprises a mounting opening 4 communicated with the drawer guide rail 2. A connecting plate, a U-shaped groove 3 on one side, the bottom surface of the housing and the U-shaped groove 3 on the other side are sequentially connected to form the mounting opening 4, as shown in fig. 2 and 3. The connecting plate is connected between the two U-shaped grooves 3. A drawer screen 6 is provided which is adapted to be inserted into the drawer rail 2 through the mounting opening 4 in a horizontal direction or to be withdrawn from the drawer rail 2 through the mounting opening 4 in a horizontal direction. The two sides of the mounting opening 4 are provided with notches 5, respectively, which notches 5 are also U-shaped, as shown in fig. 2 and 3. When the drawer screen 6 is installed in the drawer rail 2, the end side wall 7 of the drawer screen 6 is exposed from the notch 5, as shown in fig. 1, so that the user can easily take the end side wall 7 and pull the drawer screen 6 out of the drawer rail 2.

When the drawer screen 6 is fitted into the drawer guide 2, the drawer screen 6 is located outside and blocks the air inlet, in particular, the drawer screen 6 is located below the air inlet, as shown in fig. 1. The drawer type filter screen 6 and the exhaust port are respectively positioned on two faces of the rectangular static filter screen 1 which are arranged back to back, the drawer type filter screen 6 is positioned below, and the exhaust port is positioned above.

The drawer screen 6 includes a second screen 12, a fourth screen 14, a third screen 13 and a first screen 11 arranged in sequence along the direction of the air flow, as shown in fig. 4. The first screen 11 is provided with first screw holes 21. The second screen 12 is provided with second screw holes 22. The third screen 13 is provided with third screw holes 23. Fourth screen 14 is provided with fourth screw holes 24. The drawer screen 6 is a baffle filter. When the electrostatic filter screen 1 is installed in a range hood, if the range hood operates, negative pressure is generated to form airflow, and the airflow sequentially flows through the second filter screen 12, the fourth filter screen 14, the third filter screen 13 and the first filter screen 11.

The first filter screen 11 and the second filter screen 12 are both provided with a plurality of strip-shaped air inlets and flanges which respectively enclose the strip-shaped air inlets. Namely, each strip-shaped air inlet is surrounded by a circle of flanging, and the free end of each flanging faces to the inside of the drawer type filter screen 6.

The strip-shaped air inlets of the first filter screen 11 and the strip-shaped air inlets of the second filter screen 12 are arranged in a staggered manner. The flanging of the first filter screen 11 and the flanging of the second filter screen 12 are arranged oppositely. The first sieve 11, the second sieve 12, the third sieve 13 and the fourth sieve 14 are all groove-shaped and comprise a peripheral wall 9 and a bottom wall 10. The bottom walls 10 of the first, second, third and fourth sieves 11, 12, 13 and 14 are all rectangular, and the peripheral wall 9 is perpendicular to the corresponding bottom wall 10 as shown in fig. 4 to 7.

The third filter screen 13 is embedded in the first filter screen 11, the peripheral wall 9 of the third filter screen 13 is attached to the peripheral wall 9 of the first filter screen 11, and a space is formed between the bottom wall 10 of the third filter screen 13 and the bottom wall 10 of the first filter screen 11. Specifically, after the third screen 13 is embedded in the first screen 11, screws are sequentially inserted through the first screw hole 21 of the first screen 11 and the third screw hole 23 of the third screen 13, so that the third screen 13 and the first screen 11 are fixed together.

The fourth filter screen 14 is embedded in the second filter screen 12, the peripheral wall 9 of the fourth filter screen 14 abuts against the peripheral wall 9 of the second filter screen 12, and a space is formed between the bottom wall 10 of the fourth filter screen 14 and the bottom wall 10 of the second filter screen 12. Specifically, after fourth screen 14 is inserted into second screen 12, a screw is sequentially inserted through second screw hole 22 of second screen 12 and fourth screw hole 24 of fourth screen 14, and fourth screen 14 and second screen 12 are fixed together.

After the third filter screen 13 and the first filter screen 11 are fixed together and the fourth filter screen 14 and the second filter screen 12 are fixed together, the combined piece of the third filter screen 13 and the first filter screen 11 and the combined piece of the fourth filter screen 14 and the second filter screen 12 are put together, and the third filter screen 13 is attached to the fourth filter screen 14. The bottom wall 10 of the third screen 13 is in the form of a plate provided with a plurality of holes 8, in particular made by punching holes in a metal plate, the punched holes 8 being square. The bottom wall 10 of the fourth sieve 14 is also in the form of a flat plate provided with a plurality of holes 8, in particular made by punching holes in a metal plate, the punched holes 8 being square. When the third filter screen 13 abuts against the fourth filter screen 14, the meshes 8 of the third filter screen 13 are staggered with the meshes 8 of the fourth filter screen 14.

The application also provides an embodiment of the range hood, which comprises a machine shell 19, an air pipe seat, a fan, a smoke collecting hood 20 and the embodiment of the electrostatic filter screen 1, and is shown in fig. 8. The fan is disposed in the casing 19. The cabinet 19 is located above the smoke collecting hood 20. The housing 19 is provided with a receiving chamber 18, and an opening of the receiving chamber 18 is provided on a front side wall of the housing 19. The electrostatic screen 1 is mounted in the housing chamber 18. The air duct base is arranged on the top of the machine shell 19. When the range hood operates, airflow flows through the drawer type filter screen 6 from bottom to top, then flows into the air inlet, then flows through the ionization wire, the adsorption polar plate and the grounding polar plate, then flows out of the air outlet, then flows through the fan, and then is discharged from the air pipe seat.

When the electrostatic filter screen 1 is installed in the accommodating cavity 18, the electrostatic filter screen 1 is located below the fan, and the air inlet is located below the air outlet. The electrostatic screen 1 is adapted to be inserted into the receiving space 18 in a horizontal direction or to be removed from the receiving space 18 in a horizontal direction, i.e. the removal of the electrostatic screen 1 from the receiving space 18 in a horizontal direction is the reverse of the insertion of the electrostatic screen 1 into the receiving space 18 in a horizontal direction. The direction of the arrow in fig. 8 is the direction in which the electrostatic filter 1 is drawn out of the housing chamber 18 in the horizontal direction. Specifically, a user holds the handle 17 of the electrostatic filter 1 to load the electrostatic filter 1 into the accommodating chamber 18 in a horizontal direction; when the electrostatic filter 1 is taken out of the accommodating chamber 18, a user pulls the electrostatic filter 1 out of the accommodating chamber 18 in a horizontal direction (i.e., an arrow direction in fig. 8) by holding the handle 17 of the electrostatic filter.

When the electrostatic filter 1 is fixed in the housing chamber 18, the drawer filter 6 is adapted to be horizontally inserted into the drawer rail 2 or horizontally removed from the drawer rail 2, and the other part of the electrostatic filter 1 is not moved when the drawer filter 6 performs this operation. When the slide-in screen 6 is horizontally drawn out of the drawer rail 2, the slide-in screen 6 is also moved in the direction of the arrow in fig. 8.

The foregoing is merely one embodiment of the present application and other embodiments may be devised by adding, deleting, modifying or replacing certain features. For example, the air inlet can also be provided with a safety filter screen; when the drawer type filter screen is installed in the drawer guide, the drawer type filter screen is located outside the safety filter screen and shields the safety filter screen, and specifically, the drawer type filter screen is located below the safety filter screen. For another example, only one intermediate filter net may be disposed between the first filter net and the second filter net, the intermediate filter net may be in a flat plate shape having a plurality of meshes, and the intermediate filter net may be detachably disposed between the first filter net and the second filter net. For another example, the third filter and the fourth filter may also be mesh filters (mesh filters) used in the european style range hood. For another example, the third filter screen and the first filter screen may be fixed together by a buckle, and the fourth filter screen and the second filter screen may also be fixed together by a buckle. Here, the term "snap" should be understood in a broad sense, i.e. to mean: any solution that can be applied to the present application to achieve the connection fixation by elastic deformation and/or form fitting, and can also release the connection fixation without structural damage will be obvious to those skilled in the art based on the present specification, the prior art and common general knowledge. For another example, the shape of the mesh is not limited to a square, but may be other shapes, such as a circle, a triangle, or an ellipse.

For example, the mounting opening may not have notches on both sides thereof, as shown in fig. 9. For this variation, a gripper may be provided on the front end face of the drawer-type filter screen to facilitate removal of the drawer-type filter screen.

The elements of the different embodiments may be combined with each other in any feasible manner to achieve the object of the application.

It should be additionally noted that the present application should not be construed as limited to the above-described embodiments, but rather should be construed to cover all possible embodiments as determined by the claims that follow when taken in conjunction with the disclosure herein. Therefore, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present application are within the protection scope of the present application, unless departing from the content of the present application.

Claims (14)

1. The utility model provides an electrostatic filter screen for smoke ventilator, includes air inlet and gas vent, its characterized in that:

comprising a drawer screen (6) and a drawer guide (2) adapted to carry said drawer screen (6);

when the drawer type filter screen (6) is installed in the drawer guide rail (2), the drawer type filter screen (6) is positioned outside the air inlet and shields the air inlet.

2. The electrostatic screen of claim 1, wherein:

the drawer guide rail (2) comprises two U-shaped grooves (3) which are respectively arranged at two edges of the air inlet;

the openings of the two U-shaped grooves (3) are oppositely arranged;

when the drawer type filter screen (6) is arranged in the drawer guide rail (2), the two side edges of the drawer type filter screen (6) are respectively embedded into the two U-shaped grooves (3).

3. The electrostatic screen of claim 1, wherein:

comprises a mounting opening (4) communicated with the drawer guide rail (2);

the drawer type filter screen (6) is suitable for being installed into the drawer guide rail (2) through the installation opening (4) in the horizontal direction or being pulled out of the drawer guide rail (2) through the installation opening (4) in the horizontal direction.

4. The electrostatic screen of claim 3, wherein:

notches (5) are respectively arranged on two sides of the mounting opening (4);

when the drawer type filter screen (6) is arranged in the drawer guide rail (2), the end side wall (7) of the drawer type filter screen (6) is exposed from the notch (5).

5. The electrostatic screen of claim 1, wherein:

the air inlet is provided with a safety filter screen;

when the drawer type filter screen (6) is installed in the drawer guide rail (2), the drawer type filter screen (6) is positioned outside the safety filter screen and shields the safety filter screen.

6. The electrostatic screen according to any one of claims 1 to 5, wherein:

the drawer type filter screen (6) comprises a second filter screen (12) and a first filter screen (11) which are sequentially arranged along the airflow direction;

the first filter screen (11) and the second filter screen (12) are respectively provided with a plurality of strip-shaped air inlets and flanges which surround the strip-shaped air inlets;

the strip-shaped air inlets of the first filter screen (11) and the strip-shaped air inlets of the second filter screen (12) are arranged in a staggered manner;

the flanging of the first filter screen (11) and the flanging of the second filter screen (12) are arranged in opposite directions.

7. The electrostatic screen of claim 6, wherein:

the drawer type filter screen (6) further comprises a middle filter screen which is detachably arranged between the first filter screen (11) and the second filter screen (12).

8. The electrostatic screen of claim 7, wherein:

the middle filter screen is in a flat plate shape provided with a plurality of meshes (8).

9. The electrostatic screen of claim 6, wherein:

the drawer screens (6) comprise a third screen (13) and a fourth screen (14);

the first filter screen (11), the second filter screen (12), the third filter screen (13) and the fourth filter screen (14) are all groove-shaped and comprise a peripheral wall (9) and a bottom wall (10);

the third filter screen (13) is embedded in the first filter screen (11), the peripheral wall (9) of the third filter screen (13) is attached to the peripheral wall (9) of the first filter screen (11), and a certain space is formed between the bottom wall (10) of the third filter screen (13) and the bottom wall (10) of the first filter screen (11);

the fourth filter screen (14) is embedded in the second filter screen (12), the peripheral wall (9) of the fourth filter screen (14) is attached to the peripheral wall (9) of the second filter screen (12), and a certain space is formed between the bottom wall (10) of the fourth filter screen (14) and the bottom wall (10) of the second filter screen (12);

the third filter screen (13) is attached to the fourth filter screen (14).

10. The electrostatic screen of claim 9, wherein:

the bottom wall (10) of the third filter screen (13) is in a flat plate shape provided with a plurality of meshes (8);

the bottom wall (10) of the fourth filter screen (14) is in a flat plate shape provided with a plurality of meshes (8);

the meshes (8) of the third filter screen (13) and the meshes (8) of the fourth filter screen (14) are arranged in a staggered manner.

11. The electrostatic screen according to any one of claims 1 to 5, wherein:

the electrostatic filter screen (1) comprises a shell, and an ionization wire, an adsorption polar plate and a grounding polar plate which are arranged in the shell;

the air inlet is located at the bottom surface of the shell, and the air outlet is located at the top surface of the shell.

12. The electrostatic screen of claim 11, wherein:

the shell is cuboid;

the drawer type filter screen (6) is plate-shaped.

13. A range hood, its characterized in that:

comprising a containing chamber (18) and an electrostatic screen (1) according to any one of claims 1 to 12;

the electrostatic filter screen (1) is arranged in the accommodating cavity (18);

when the range hood operates, airflow firstly flows through the drawer type filter screen (6) and then flows into the air inlet.

14. The range hood of claim 13, wherein:

the electrostatic filter screen (1) is arranged to be suitable for being loaded into the accommodating cavity (18) in a horizontal direction or being pulled out of the accommodating cavity (18) in the horizontal direction;

when the electrostatic filter screen (1) is fixed in the accommodating cavity (18), the drawer type filter screen (6) is suitable for being installed in the drawer guide rail (2) along the horizontal direction or being pulled out of the drawer guide rail (2) along the horizontal direction.

Images