Dynamic oil pollution adsorption device and range hood

Abstract

The present invention relates to a dynamic oil adsorption device and a range hood, wherein the dynamic oil adsorption device comprises a conductive component and an adsorption component, wherein the conductive component is electrically connected to the adsorption component and provides power support for the adsorption component, wherein the adsorption component comprises a plurality of stacked adsorption units, wherein the voltages of adjacent adsorption units are different and the voltages of adjacent adsorption units can be exchanged with each other at a predetermined frequency, so that the direction of the electric field formed between adjacent adsorption units is constantly changing; the range hood comprises a shell, and the dynamic oil adsorption device is disposed in the shell. Oil fume particles adhere to the adsorption units under the action of electrostatic adsorption, and since the voltages of adjacent adsorption units are exchanged at a predetermined frequency, the oil fume particles constantly change their moving direction as the direction of the electric field changes, and collide and adhere during the moving process, and through the dynamic electrostatic adsorption method, the dynamic oil adsorption device has a higher oil adsorption capacity, thereby improving the performance of the range hood.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen appliances, and in particular to a dynamic oil stain adsorption device and a range hood. Background Art

[0002] As a common indoor oil fume treatment equipment, range hoods usually simply suck indoor oil fume into the body and then discharge it to the outside, or set a static filter element at the air inlet to filter the oil pollution. However, such elements cannot meet the demand for oil fume adsorption, and the oil fume that is not adsorbed will be discharged into the atmosphere through the range hood, polluting the air, or dispersed into the kitchen, affecting the kitchen environment and seriously reducing the performance of the range hood. Summary of the invention

[0003] The purpose of the present invention is to provide a dynamic oil adsorption device and a range hood to overcome the defect of the range hood having a poor adsorption effect on oil fumes.

[0004] The technical solution adopted by the present invention to solve the above technical problems is:

[0005] A dynamic oil adsorption device includes a conductive component and an adsorption component. The conductive component is electrically connected to the adsorption component and provides power support for the adsorption component. The adsorption component includes a plurality of stacked adsorption units. The voltages of adjacent adsorption units are different and the voltages of adjacent adsorption units can be exchanged with each other at a predetermined frequency so that the direction of the electric field formed between adjacent adsorption units changes continuously.

[0006] In a preferred embodiment, the adsorption component includes a connecting unit, the connecting unit is electrically connected to the conductive component, and the adsorption units arranged at intervals are connected to the same connecting unit.

[0007] In a preferred embodiment, the adsorption assembly includes no less than two connecting units, and the adsorption units connected to different connecting units are arranged in a staggered manner.

[0008] In a preferred embodiment, the adsorption assembly further comprises a mounting unit, the connecting unit is disposed in the mounting unit, and the adsorption unit is inserted into the mounting unit and connected to the connecting unit.

[0009] In a preferred embodiment, the adsorption unit is provided with a plurality of adsorption strips spreading outward from the center of the adsorption unit.

[0010] In a preferred embodiment, the conductive component includes a fixed body and a rotating body in contact with the fixed body, and the rotating body can rotate relative to the fixed body.

[0011] In a preferred embodiment, the conductive component includes a ball, and the ball is embedded between the fixed body and the rotating body and can roll between the fixed body and the rotating body.

[0012] In a preferred embodiment, both the fixed body and the rotating body are provided with an arc groove, and the balls are embedded in the arc groove and can roll along the arc groove.

[0013] In a preferred embodiment, it further comprises a first wire and a second wire, wherein two ends of the first wire are electrically connected to the rotating body and the adsorption unit respectively, and the second wire is electrically connected to the fixed body.

[0014] In a preferred embodiment, the conductive component further includes a first mounting shell and a second mounting shell, a mounting channel is provided between the first mounting shell and the second mounting shell, the fixed body is embedded in the first mounting shell, and the rotating body is embedded in the second mounting shell.

[0015] In a preferred embodiment, it further comprises a mounting frame, the first mounting shell is mounted on the mounting frame, and the mounting frame is provided with a threading hole for the second wire to pass through.

[0016] In a preferred embodiment, it further comprises a driving assembly, wherein the driving assembly comprises a rotatable driving shaft, one end of the driving shaft is connected to the rotating body, and the other end of the driving shaft is connected to the adsorption assembly.

[0017] In a preferred embodiment, the interior of the driving shaft is hollow, and the first wire passes through the interior of the driving shaft.

[0018] In a preferred embodiment, an isolation cover is further included, and the conductive component and part of the driving component are accommodated in the isolation cover.

[0019] In a preferred embodiment, it further comprises a support frame, the interior of the support frame is hollow, the support frame extends into the isolation cover, and the second wire passes through the support frame.

[0020] The present invention further provides a range hood, comprising the above-mentioned dynamic oil adsorption device, and also comprising a shell, wherein the dynamic oil adsorption device is accommodated in the shell.

[0021] The present invention has at least the following beneficial effects:

[0022] Since the voltages of adjacent adsorption units are different, there is a potential difference between the two, which forms an electrostatic field between the adjacent adsorption units. The oil fume particles adhere to the adsorption units under the action of electrostatic adsorption, and since the voltages of adjacent adsorption units are exchanged at a predetermined frequency, the oil fume particles continuously change their moving direction as the direction of the electric field changes, and collide and adhere during the movement. Through dynamic electrostatic adsorption, the dynamic oil adsorption device has a higher oil adsorption capacity, thereby improving the performance of the range hood. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0024] Figure 1 It is a structural schematic diagram of an embodiment of a dynamic oil adsorption device;

[0025] Figure 2 is a cross-sectional schematic diagram of an embodiment of a dynamic oil adsorption device;

[0026] Figure 3 is a schematic structural diagram of another embodiment of an adsorption assembly;

[0027] Figure 4 is a schematic structural diagram of an embodiment of a conductive component;

[0028] Figure 5 is a schematic structural diagram of an embodiment of a mounting frame;

[0029] Figure 6 It is a structural schematic diagram of an embodiment of a range hood;

[0030] Figure 7 It is a schematic structural diagram of an embodiment of an adsorption unit. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the present invention. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the present invention can be combined interchangeably without conflicting with each other.

[0032] Reference Figure 1 and Figure 2The dynamic oil adsorption device includes a conductive component 20 and an adsorption component 10. The conductive component 20 is electrically connected to the adsorption component 10 and provides power support for the adsorption component 10. The adsorption component 10 includes a plurality of adsorption units 11. The adsorption units 11 are arranged in a stacked manner to adsorb the oil smoke near them. The adjacent adsorption units 11 have different voltages, so there is a potential difference between the adjacent adsorption units 11, and an electrostatic field is formed between the two. After the external oil smoke reaches the adsorption component 10, the electric field makes the oil smoke particles and dust particles show different electrical properties respectively, and the particles are adsorbed on the adsorption unit 11 with opposite charges. In addition, the voltages of the adjacent adsorption units 11 are exchanged with each other at a certain frequency, so that the direction of the electric field formed between the adjacent adsorption units 11 is constantly changed. The oil smoke particles entering the adsorption component 10 constantly change their moving direction as the direction of the electric field changes. Through the dynamic electrostatic adsorption method, the number of collisions and the collision intensity between the oil smoke particles are increased. After the continuous collision and adhesion between the oil smoke particles, the adsorption effect of the adsorption unit 11 on the oil smoke particles is enhanced.

[0033] The number of adsorption units 11 is not less than two to meet the requirements of the adsorption component 10 for the strength of oil fume adsorption and the flexibility of electric field transformation; the adsorption units 11 can be grouped into two, and the adsorption component 10 includes at least one group of adsorption units 11, and the adsorption units 11 in the same group exchange the electric field direction.

[0034] Adjacent adsorption units 11 can have different voltages, and there is a potential difference between them to form an electric field. Alternatively, one of the two adjacent adsorption units 11 can be charged and the other uncharged, which also meets the requirements of electric field conversion. The electric field direction exchange time between adjacent adsorption units 11 is no more than 1s to ensure the adsorption strength of the adsorption component 10 on the oil fume particles.

[0035] The adsorption component 10 further includes a mounting unit 12 and a connecting unit 13 . The connecting unit 13 is located inside the mounting unit 12 . The connecting unit 13 is connected to the adsorption unit 11 and the conductive component 20 , so that electrical conduction is established between the conductive component 20 and the adsorption unit 11 .

[0036] Specifically, the adsorption unit 11 is inserted into the installation unit 12 and electrically connected to the connection unit 13, and the adsorption units 11 arranged at intervals from each other are connected to the same connection unit 13, so that the adsorption units 11 connected to the same connection unit 13 can perform voltage conversion synchronously, and multiple adsorption units 11 can be connected to the same connection, thereby improving the voltage change efficiency of the adsorption unit 11; multiple connection units 13 can be set in the installation unit 12, if the adsorption units 11 arranged at intervals are divided into a group, different connection units 13 are connected to different groups of adsorption units 11, so that the adsorption units 11 connected to different connection units 13 can exchange electric potential at the same time and realize the change of electric field direction.

[0037] Figure 3 The adsorption units 11 shown are divided into two groups, each group is provided with two adsorption units 11, specifically, the adsorption unit 11a and the adsorption unit 11b are connected to the connection unit 13a, and the adsorption unit 11c and the adsorption unit 11d are connected to the connection unit 13b; the adsorption unit 11c is located between the adsorption unit 11a and the adsorption unit 11b, and the adsorption unit 11b is located between the adsorption unit 11c and the adsorption unit 11d, that is, the adsorption units of different groups are arranged alternately; by changing the external voltage connected to the connection unit 13a and the connection unit 13b, the voltages of the adsorption units in each group are exchanged simultaneously, so that the voltage between the adsorption unit 11a and the adsorption unit 11c, as well as the voltages between the adsorption unit 11a and the adsorption unit 11c, between the adsorption unit 11c and the adsorption unit 11b, and between the adsorption unit 11b and the adsorption unit 11d are synchronously transformed, and the direction of the electric field changes accordingly.

[0038] Figure 2 Take three adsorption units 11 as an example. The adsorption unit 11 in the middle is not charged, and the adsorption units 11 on both sides are connected to the same connection unit 13. In the initial state, assuming that the voltage of the adsorption units 11 on both sides is higher than that of the middle adsorption unit 11, the adsorption units 11 on both sides form an electric field with the middle adsorption unit 11, and electrostatically adsorb the oil fume particles; by changing the voltage of the adsorption units 11 on both sides through the connection unit 13, so that the voltage of the middle adsorption unit 11 is higher than that of the adsorption units 11 on both sides, the direction of the electric field formed between the adsorption units 11 on both sides and the middle adsorption unit 11 is opposite to the initial direction, and the oil fume particles move in the opposite direction under the action of the electrostatic field; by cyclically changing the voltage of the adsorption units 11 on both sides, the direction of the electric field between the adsorption units 11 on both sides and the middle adsorption unit 11 can be realized, so that the direction of the electric field between the adsorption units 11 on both sides and the middle adsorption unit 11 is continuously changed, so that the direction of movement of the oil fume particles between the adsorption units 11 is continuously changed.

[0039] The connecting unit 13 may be a fastener that can be screwed into the installation unit 12 and fix the adsorption unit 11. The adsorption unit 11 inserted into the installation unit 12 can be removed by removing the connecting unit 13, and then the adsorption unit 11 can be replaced or cleaned, which has good practicality.

[0040] The adsorption unit 11 and the connection unit 13 are both made of conductive material to meet the requirements of electrical connection between the adsorption unit 11 and the conductive component 20 and change of the electric field direction between the adsorption units 11 .

[0041] Reference Figure 2 and Figure 4The conductive component 20 includes a fixed body 21 and a rotating body 22 in contact with the fixed body 21. The rotating body 22 can rotate relative to the fixed body 21. A ball 23 is embedded between the rotating body 22 and the fixed body 21. The rotating body 22, the ball 23 and the fixed body 21 are all made of conductive materials. The ball 23 can roll between the rotating body 22 and the fixed body 21. The conductive component 20 realizes electrical conduction between the rotating body 22 and the fixed body 21 under the premise that the fixed body 21 is in a fixed position state and the rotating body 22 is in a rotating state; and the fixed body 21 and the rotating body 22 are electrically connected through the ball 23. The ball 23 is in rolling contact with the fixed body 21 and the rotating body 22. The friction between the ball 23 and the two is small, which reduces the working noise of the dynamic oil adsorption device and can ensure the power transmission efficiency between the rotating body 22 and the drive shaft 31 and the ball 23.

[0042] Preferably, arc grooves are provided on the surfaces of the fixed body 21 and the rotating body 22 , and the balls 23 are embedded in the arc grooves and roll along the arc grooves following the rotation of the rotating body 22 .

[0043] The conductive component 20 further includes a first conductive wire 24 and a second conductive wire 25. The two ends of the first conductive wire 24 are electrically connected to the adsorption component 10 and the rotating body 22 respectively, and the second conductive wire 25 is electrically connected to the fixed body 21. The conductive component 20 further includes a first mounting shell 26 and a second mounting shell 27. The first mounting shell 26 and the second mounting shell 27 are opposite to each other, and a mounting channel 28 is formed between the first mounting shell 26 and the second mounting shell 27 for the first conductive wire 24 and the second conductive wire 25 to pass through. The fixed body 21 is embedded in the first mounting shell 26, and the rotating body 22 is embedded in the second mounting shell 27. The first conductive wire 24 passes through the mounting channel 28 and is connected to the adsorption component 10. The second conductive wire 25 passes through the mounting channel 28 and is connected to an external power supply, thereby transmitting the voltage of the external power supply to the adsorption component 10.

[0044] After the first wire 24 extends into the installation unit 12 , it is connected to the adsorption unit 11 or the connection unit 13 , which can achieve the effect of electrical conduction between the adsorption unit 11 and the conductive component 20 and electrical connection between the adsorption unit 11 and the connection unit 13 .

[0045] The assembly formed by the first mounting shell 26, the second mounting shell 27, the fixed body 21, the rotating body 22 and the ball 23 can be replaced by an end ball bearing, which can also achieve the above-mentioned transmission and electrical conduction effects, has high practicality, and can reduce the production cost of the dynamic oil adsorption device.

[0046] Reference Figure 5The conductive component 20 further includes a mounting frame 29, and the first mounting shell 26 is mounted on the mounting frame 29 to achieve relative fixation between the fixing member and the mounting frame 29. The mounting frame 29 is provided with a threading hole 291, and the second wire 25 passing through the mounting channel 28 passes through the threading hole 291 and is connected to an external power source.

[0047] Reference Figure 1-Figure 2 , further comprising a driving assembly 30, the driving assembly 30 comprising a driving shaft 31 and a driving motor 32 connected to the driving shaft 31, the driving shaft 31 passing through the interior of the driving motor 32, and the driving shaft 31 rotates under the drive of the driving motor 32. Both ends of the driving shaft 31 are respectively connected to the mounting unit 12 and the conductive assembly 20, and drive the mounting unit 12 and the conductive assembly 20 to rotate synchronously.

[0048] Specifically, the end of the driving shaft 31 is inserted into the interior of the mounting unit 12, the interior of the driving shaft 31 is hollow, and the first wire 24 passing through the mounting channel 28 passes through the interior of the driving shaft 31 and extends into the mounting unit 12 to be electrically connected to the adsorption unit 11. The driving shaft 31 drives the mounting unit 12 to rotate synchronously with the rotating body 22, and the first wire 24 located inside the driving shaft 31 rotates with the driving shaft 31, thereby avoiding the first wire 24 from being twisted due to the asynchronous rotation of the two ends, which affects the electrical conduction stability between the conductive component 20 and the adsorption component 10; in addition, since the first wire 24 is located inside the driving shaft 31, the defects of complex line connection and low reliability caused by external wire crossing are overcome.

[0049] It also includes an isolation cover 40, in which the conductive component 20, the drive motor 32 and a section of the drive shaft 31 are housed to prevent external oil smoke from corroding the conductive component 20 or the drive component 30, thereby improving the reliability of electrical conduction between the conductive component 20 and the adsorption component 10 and the service life of the dynamic oil adsorption device.

[0050] The device further includes a support frame 50, which extends into the interior of the isolation cover 40. The interior of the support frame 50 is hollow. The second wire 25 passes through the threading hole 291 and enters the support frame 50, and passes through the support frame 50 to connect with the external power supply. By threading the second wire 25 from the interior of the support frame 50, it is convenient to organize the wires, avoid external oil smoke adhering to the surface of the wires, and improve the reliability of the connection between the second wire 25 and other components and the safety performance of the dynamic oil adsorption device. Multiple support frames 50 can be provided outside the isolation cover 40 to improve the convenience of connecting the second wire 25 to the external power supply.

[0051] The support frame 50 includes a tube body 51 and a connecting column 52 located inside the tube body 51. The connecting column 52 is fixedly connected to the tube body 51. A channel for the second wire 25 to pass through is formed between the inside of the tube body 51 and the outer wall of the connecting column 52. The end of the connecting column 52 is connected to the mounting frame 29 to achieve relative fixation of the support frame 50 and the conductive component 20.

[0052] Reference Figure 1 and Figure 6 The present invention also provides a range hood, comprising the above-mentioned dynamic oil adsorption device, and also comprising a housing 60, the interior of the housing 60 is hollow, and the dynamic oil adsorption device is accommodated inside the housing 60. An air inlet 61 is formed below the housing 60, and a wind wheel 62 is also provided inside the housing 60. During the rotation of the wind wheel 62, external oil smoke is sucked into the housing 60, and the oil smoke is adsorbed by the adsorption assembly 10, thereby achieving purification of the oil smoke.

[0053] In addition, since the mounting unit 12 is connected to the driving shaft 31 and rotates along with the driving shaft 31, the adsorption unit 11 rotates synchronously driven by the mounting unit 12. The oil fume particles adsorbed by the adsorption unit 11 are thrown onto the inner wall of the shell 60 by the adsorption unit 11 under the action of centrifugal force, thereby realizing automatic cleaning of the adsorption unit 11. An oil scraping device is provided on the inner wall to collect oil stains, and the adsorption unit 11 always maintains sufficient oil stain adsorption force, thereby improving the adsorption efficiency of the adsorption component 10 for oil stains.

[0054] A support seat 63 is provided below the shell 60 . The support frame 50 is L-shaped. One end of the support frame 50 away from the isolation cover 40 is connected to the support seat 63 , so that the support seat 63 is relatively fixed in the shell 60 .

[0055] Reference Figure 7 The adsorption unit 11 is provided with a plurality of adsorption strips 111 that spread outward from the center thereof. The oil fume particles adhered to the adsorption strips 111 can move along the adsorption strips under the action of centrifugal force and be quickly thrown onto the inner wall of the housing 60, thereby improving the self-cleaning efficiency of the adsorption unit 11. The adsorption unit 11 is also provided with a plurality of mounting holes for connecting with the connecting unit 13. Since the outermost ends of the adsorption strips 111 are not connected, the oil stains adhered to the adsorption strips 111 can be directly thrown onto the inner wall of the housing 60, thereby avoiding the oil stains being blocked by the outer ends of the adsorption strips 111, causing the oil stains to be retained on the adsorption strips 111, thereby affecting the self-cleaning effect of the adsorption unit 11.

[0056] The above is a specific description of the preferred embodiments of the present invention, but the present invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A dynamic oil adsorption device, characterized in that: It includes a conductive component, an adsorption component, and a driving component. The conductive component is electrically connected to the adsorption component and provides power support for the adsorption component. The adsorption component includes a plurality of stacked adsorption units. The voltages of adjacent adsorption units are different and the voltages of adjacent adsorption units can be exchanged with each other at a predetermined frequency so that the direction of the electric field formed between adjacent adsorption units changes continuously. The conductive component includes a fixed body, a rotating body, a first wire and a second wire. The rotating body is electrically conductive with the fixed body, and the rotating body can rotate relative to the fixed body. The two ends of the first wire are electrically connected to the rotating body and the adsorption unit respectively, and the second wire is electrically connected to the fixed body and can be electrically connected to an external power supply. The driving component includes a rotatable driving shaft, one end of the driving shaft is connected to the rotating body, and the other end of the driving shaft is connected to the adsorption component.

2. The dynamic oil adsorption device according to claim 1 is characterized in that: The adsorption component includes a connection unit, the connection unit is electrically connected to the conductive component, and the adsorption units arranged at intervals are connected to the same connection unit.

3. The dynamic oil adsorption device according to claim 2 is characterized in that: The adsorption assembly includes no less than two connection units, and the adsorption units connected to different connection units are arranged in a staggered manner.

4. The dynamic oil adsorption device according to claim 2 is characterized in that: The adsorption assembly further includes a mounting unit, the connection unit is disposed in the mounting unit, and the adsorption unit is inserted into the mounting unit and connected to the connection unit.

5. The dynamic oil adsorption device according to claim 1, characterized in that: The adsorption unit is provided with a plurality of adsorption strips spreading outward from the center of the adsorption unit.

6. The dynamic oil adsorption device according to any one of claims 1 to 5, characterized in that: The conductive component includes a ball, and the ball is embedded between the fixed body and the rotating body and can roll between the fixed body and the rotating body.

7. The dynamic oil adsorption device according to claim 6, characterized in that: The fixed body and the rotating body are both provided with arc grooves, and the balls are embedded in the arc grooves and can roll along the arc grooves.

8. The dynamic oil adsorption device according to claim 1, characterized in that: The conductive component further includes a first mounting shell and a second mounting shell. A mounting channel is provided between the first mounting shell and the second mounting shell. The fixed body is embedded in the first mounting shell, and the rotating body is embedded in the second mounting shell.

9. The dynamic oil adsorption device according to claim 8, characterized in that: It also includes a mounting frame, the first mounting shell is mounted on the mounting frame, and the mounting frame is provided with a threading hole for the second wire to pass through.

10. The dynamic oil adsorption device according to claim 1, characterized in that: The interior of the driving shaft is hollow, and the first wire passes through the interior of the driving shaft.

11. The dynamic oil adsorption device according to claim 1, characterized in that: It also includes an isolation cover, in which the conductive component and part of the driving component are accommodated.

12. The dynamic oil adsorption device according to claim 11, characterized in that: It also includes a support frame, the interior of the support frame is hollow, the support frame extends into the isolation cover, and the second wire passes through the interior of the support frame.

13. A range hood, characterized in that: The dynamic oil adsorption device comprises the dynamic oil adsorption device according to any one of claims 1 to 12, and further comprises a shell, wherein the dynamic oil adsorption device is accommodated in the shell.

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