Desktop fan

Abstract

The present invention discloses a desktop fan, which includes a support base, a shell, a fan and an electrostatic dust removal assembly. The electrostatic dust removal assembly is arranged in the shell and located in the air duct, and the electrostatic dust removal assembly includes a plurality of electrode units, and the plurality of electrode units include a high potential unit and a low potential unit. The high potential unit and the low potential unit are alternately arranged in an annular structure, and a dust removal air duct is formed between adjacent high potential units and low potential units. The dust removal air duct constitutes a part of the air duct, and the conductive part is located on the inner side wall of the annular structure, and the conductive end of the high potential unit is spaced apart from the conductive end of the low potential along the axial direction of the annular structure. According to the desktop fan of the present invention, by arranging the conductive part on the inner side wall of the annular structure, the internal space of the annular structure can be used for routing to electrically connect the corresponding electrode units, thereby saving space and avoiding physical interference or electromagnetic interference between the routing and other components.

Description

Technical Field

[0001] The invention relates to the field of air purification equipment, in particular to a desktop fan. Background Art

[0002] In the related art, the desktop fan only has the blowing function, and its single function leads to slow technology update and iteration, and cannot meet people's growing material needs.

[0003] Some desktop fans in the related art are equipped with an electrostatic dust removal component for dust removal. However, the electrostatic dust removal component is prone to corona discharge between adjacent high and low potential electrodes, which leads to the generation of ozone and electric shock accidents, affecting the safety of use. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a desktop fan, which has the advantages of simple structure and diversified functions.

[0005] A desktop fan according to an embodiment of the present invention comprises: a support base, the support base is suitable for being placed on the ground or a table; a shell, the shell is connected to the support base, the shell is provided with an air inlet and an air outlet and an air duct connecting the air inlet and the air outlet; a fan, the fan is arranged in the shell and located in the air duct; an electrostatic dust removal component, the electrostatic dust removal component is arranged in the shell and located in the air duct, the electrostatic dust removal component comprises a plurality of electrode units, the plurality of electrode units comprise at least one high potential unit and at least one low potential unit, each electrode unit comprises a conductive portion and an insulating portion, the conductive portion comprises an electric field generator and a conductive end, and the insulating portion at least covers a portion of the electric field generator;

[0006] In which, the high potential unit and the low potential unit are alternately arranged into a ring structure, and a dust removal duct is formed between adjacent high potential units and low potential units, the dust removal duct constitutes a part of the duct, the conductive part is located on the inner wall of the ring structure, and the conductive end of the high potential unit and the conductive end of the low potential are spaced apart along the axial direction of the ring structure.

[0007] According to the desktop fan of an embodiment of the present invention, high-potential units and low-potential units are alternately arranged in a ring, and the conductive part is arranged on the inner wall of the ring structure, so that the internal space of the ring structure can be used for routing to electrically connect the corresponding electrode units, thereby saving space and avoiding physical interference or electromagnetic interference between the routing and other components.

[0008] In some embodiments, each electrode unit has a mounting groove on one side in the thickness direction and a mounting column on the other side, and the mounting column of each electrode unit extends into the mounting groove of an adjacent electrode unit.

[0009] In some embodiments, the thickness of each of the electrode units gradually decreases radially inwardly of the electrostatic precipitator assembly.

[0010] In some embodiments, the conductive portion and the insulating portion of each electrode unit are injection molded; or, the insulating portion of each electrode unit includes at least two insulator portions, and the at least two insulator portions clamp the conductive portion of the electrode unit.

[0011] In some embodiments, the conductive part is a conductive plastic part.

[0012] In some embodiments, the rotation axis of the fan coincides with the central axis of the electrostatic precipitator assembly.

[0013] In some embodiments, the desktop fan also includes: an air outlet cover, which is installed on the shell and covers the air outlet, the air outlet cover includes an outer frame, an inner frame and a plurality of air outlet ribs, the outer frame is arranged around the inner frame, one end of each of the air outlet ribs is connected to the inner frame and the other end is connected to the outer frame, the plurality of air outlet ribs are arranged at intervals along the circumference of the outer frame, and the plurality of air outlet ribs extend spirally and radially from the inner frame to the outer frame.

[0014] In some embodiments, the air inlet and the air outlet are respectively disposed on the two end walls of the shell, and the air inlet extends to the side peripheral wall of the shell.

[0015] In some embodiments, the air inlets are multiple and spaced apart along the circumference of the shell.

[0016] In some embodiments, the electrostatic dust removal assembly also includes a first conductive ring and a second conductive ring, the first conductive ring is provided with a first guide groove, and the conductive end of the high potential unit is embedded in the first conductive groove; the second conductive ring is provided with a second guide groove, and the conductive end of the low potential unit is embedded in the second conductive groove, and the first conductive ring and the second conductive ring are spaced apart along the axial direction of the annular structure.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a structural schematic diagram of a desktop fan according to an embodiment of the present invention;

[0020] Figure 2 is a three-dimensional diagram of an annular structure of a desktop fan according to an embodiment of the present invention;

[0021] Figure 3 is a schematic structural diagram of an electrode unit (high potential unit) of a desktop fan according to an embodiment of the present invention;

[0022] Figure 4 is a schematic structural diagram of an electrode unit (high potential unit) of a desktop fan according to an embodiment of the present invention;

[0023] Figure 5 is an exploded view of an electrode unit (high potential unit) of a table fan according to an embodiment of the present invention;

[0024] Figure 6 is a schematic structural diagram of an electrode unit (low potential unit) of a desktop fan according to an embodiment of the present invention;

[0025] Figure 7 is an exploded view of an electrode unit (low potential unit) of a desktop fan according to an embodiment of the present invention;

[0026] Figure 8 4 is a schematic structural diagram of a first conductive ring (second conductive ring) of a desktop fan according to an embodiment of the present invention.

[0027] Reference numerals:

[0028] Desk fan 100,

[0029] Support seat 110,

[0030] Housing 120, air outlet 122,

[0031] Electrostatic precipitator assembly 200, electrode unit 210, mounting groove 211, mounting column 212,

[0032] Conductive part 220, electric field generator 221,

[0033] Conductive end 222, conductive end 222a of the high potential unit, conductive end 222b of the low potential unit,

[0034] Insulation part 230, insulator part 231,

[0035] Ring structure 240, high potential unit 241, low potential unit 242,

[0036] The first conductive ring 260, the first guide groove 261,

[0037] The second conductive ring 270, the second guide groove 271,

[0038] Air outlet cover 140 , outer frame 141 , inner frame 142 , and air outlet ribs 143 . DETAILED DESCRIPTION

[0039] Embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Embodiments of the present invention are described in detail below.

[0040] Reference below Figure 1-Figure 8 A table fan 100 according to an embodiment of the present invention is described.

[0041] The desktop fan 100 according to the embodiment of the present invention includes a support base 110 , a housing 120 , a fan (not shown in the figure) and an electrostatic dust removal assembly 200 .

[0042] like Figure 1 As shown, the support base 110 is suitable for being placed on the ground or a table, and the housing 120 is connected to the support base 110. The housing 120 is provided with an air inlet and an air outlet 122 and an air duct connecting the air inlet and the air outlet 122. The fan is provided in the housing 120 and is located in the air duct. The electrostatic dust removal assembly 200 is provided in the housing 120 and is located in the air duct. Figure 2 As shown, the electrostatic precipitator assembly 200 includes a plurality of electrode units 210, the plurality of electrode units 210 include at least one high potential unit 241 and at least one low potential unit 242, each electrode unit 210 includes a conductive portion 220 and an insulating portion 230, the conductive portion 220 includes an electric field generator 221 and a conductive end 222, and the insulating portion 230 at least covers a portion of the electric field generator 221. In the description of the present invention, "plurality" means two or more.

[0043] Among them, Figure 2 As shown, the high potential unit 241 and the low potential unit 242 are alternately arranged in a ring, and a dust removal air duct is formed between adjacent high potential units 241 and low potential units 242, and the dust removal air duct constitutes a part of the air duct. The conductive portion 220 is located on the inner side wall of the ring structure 240, and the conductive end 222a of the high potential unit and the conductive end 222b of the low potential unit are spaced apart along the axial direction of the ring structure 240.

[0044] It can be understood that the electric field generator 221 refers to the portion of the conductive part 220 used to generate an electric field. The conductive end 222 refers to the portion of the conductive part 220 used to achieve electrical conduction.

[0045] According to the desktop fan 100 of the embodiment of the present invention, the insulating portion 230 covers at least a portion of the electric field generator 221, so that adjacent electric field generators 221 are separated by a layer of insulating material. On the one hand, corona discharge between adjacent electrode units 210 is avoided, ozone generation is reduced, and the risk of electric shock accidents is reduced, thereby greatly improving the safety of use. On the other hand, the use of a coating method enables each electrode unit 210 to form a whole, which is conducive to simplifying assembly. Moreover, each electrode unit 210 forms an independent whole, so that each electrode unit 210 can be replaced individually both in production and in use. For example, if a defective electrode unit 210 is found in production, it can be replaced individually without having to process multiple electrode units 210 or the electrostatic dust removal assembly 200 as a whole, thereby indirectly improving the yield of the product and saving production costs. In the process of use, since a single electrode unit 210 can be replaced, maintenance and care during use are convenient.

[0046] Since a high voltage electric field can be generated between adjacent electrode units 210 of the electrostatic dust removal assembly 200, the air molecules can be ionized into positive ions and negative ions through the high voltage electric field. When negative ions come into contact with bacteria, molds, viruses, etc., the negative ions themselves carry excess electrons, which can destroy the molecular protein structure in the bacteria, molds, viruses, etc., causing the bacteria, molds, viruses, etc. to undergo structural changes (protein polarity inversion) or energy transfer, thereby killing microorganisms such as bacteria and viruses. Therefore, the electrostatic dust removal assembly 200 has a bactericidal effect, thereby improving the cleanliness of the air.

[0047] By arranging the high potential unit 241 and the low potential unit 242 alternately in a ring shape, not only the overall dust removal area of ​​the electrostatic dust removal assembly 200 is increased, but the electrostatic dust removal assembly 200 can also extend in all directions at the same time. In this way, while ensuring the dust removal and sterilization area, the space occupied by the electrostatic dust removal assembly 200 is reduced, which is beneficial to improving the space utilization of the desktop fan 100.

[0048] Furthermore, if Figure 2 As shown, the wire used to electrically connect the conductive end 222 is passed through the internal space of the annular structure 240, and the conductive part 220 is set on the inner wall of the annular structure 240. Therefore, the internal space of the annular structure 240 can be used for routing to electrically connect the corresponding electrode unit 210, thereby saving space and avoiding physical interference or electromagnetic interference between the routing and other components.

[0049] In this way, the desktop fan 100 according to the embodiment of the present invention takes into account both the dust removal and sterilization area and the space utilization rate, and has the advantages of good dust removal and sterilization effect and high safety.

[0050] According to some specific embodiments of the present invention, Figure 3-Figure 4 ,as well as Figure 6 As shown, each electrode unit 210 is provided with a mounting groove 211 on one side in the thickness direction and a mounting post 212 on the other side, and the mounting post 212 of each electrode unit 210 extends into the mounting groove 211 of the adjacent electrode unit 210. Through the cooperation of the mounting groove 211 and the mounting post 212, it is possible to ensure the connection between adjacent electrode units 210 to be stable, thereby ensuring the structural connection strength of the entire electrostatic precipitator assembly 200, and to make the multiple electrode units 210 evenly distributed in the circumferential direction of the electrostatic precipitator assembly 200, thereby ensuring that the electric field strength between adjacent electrode units 210 is the same and stable.

[0051] According to some specific embodiments of the present invention, Figure 4 As shown, the thickness of each electrode unit 210 gradually decreases inwardly along the radial direction of the electrostatic dust removal assembly 200. Since the electrostatic dust removal assembly 200 is formed in a ring shape, the circumference gradually decreases in the radial direction of the electrostatic dust removal assembly 200, so the thickness of each electrode unit 210 also gradually decreases inwardly along the radial direction of the electrostatic dust removal assembly 200, so that the gap between adjacent electrode units 210 can be ensured to be the same in the radial direction of the electrostatic dust removal assembly 200, that is, the width of the dust removal air duct is consistent in the radial direction of the electrostatic dust removal assembly 200, thereby ensuring that the electric field strength between adjacent electrode units 210 is the same everywhere, the dust removal and sterilization effect is stable and uniform, and the wind resistance is small.

[0052] According to some specific embodiments of the present invention, the conductive part 220 and the insulating part 230 of each electrode unit 210 are injection molded, so that the conductive part 220 and the insulating part 230 are produced together to form a complete whole, which not only simplifies the assembly and makes the structure more stable, but also can utilize the mold to ensure that the thickness of the electrode unit 210 is uniform and controllable, which is conducive to mass production and spacing consistency, so that the wind resistance of each part of the electrostatic dust removal assembly 200 is consistent, thereby improving the uniformity of dust removal and sterilization.

[0053] Or, if Figure 5 , Figure 7 As shown, the insulating portion 230 of each electrode unit 210 includes at least two insulator portions 231, and at least two insulator portions 231 clamp the conductive portion 220 of the electrode unit 210. The positions where the two insulator portions 231 contact each other can be treated with electrostatic protection, for example, by secondary encapsulation formed by a mold, which can improve the insulation performance of the electrode unit 210 and ensure the reliability of the electrostatic precipitator assembly 200. This can facilitate the maintenance of the electrode unit 210, and the production process of the electrode unit 210 is simple.

[0054] According to some embodiments of the present invention, the conductive part 220 is a conductive plastic part. Since the conductive part 220 forms an axial part and a radial part, and the axial part and the radial part have a certain angle, by making the conductive part 220 of a conductive plastic part, the conductive plastic is easy to shape, which is convenient for making the shape of the conductive part 220 and ensuring the conductive performance of the conductive part 220.

[0055] According to some embodiments of the present invention, the rotation axis of the fan coincides with the central axis of the electrostatic dust removal assembly 200. The fan may be an axial flow fan. In this way, the positions of the fan and the electrostatic dust removal assembly 200 are more compact, which saves the internal space of the desktop fan 100, improves the space utilization of the desktop fan 100, and is conducive to the miniaturization of the desktop fan 100.

[0056] According to some embodiments of the present invention, Figure 1 As shown, the table fan 100 also includes an air outlet cover 140, which is installed on the housing 120 and covers the air outlet 122. The air outlet cover 140 includes an outer frame 141, an inner frame 142 and a plurality of air outlet ribs 143. The outer frame 141 is arranged around the inner frame 142, one end of each air outlet rib 143 is connected to the inner frame 142 and the other end is connected to the outer frame 141, and the plurality of air outlet ribs 143 are arranged at intervals along the circumference of the outer frame 141. The plurality of air outlet ribs 143 extend radially from the inner frame 142 to the outer frame 141 in a spiral manner, and the spiral direction of the plurality of air outlet ribs 143 can be consistent with the rotation direction of the fan. By setting the air outlet cover 140, the normal air outlet of the table fan 100 is guaranteed, and debris (for example, stones, etc.) is prevented from entering the interior of the table fan 100, so that both the air outlet volume and safety are taken into account. Furthermore, since the plurality of air outlet ribs 143 extend spirally and radially from the inner frame 142 to the outer frame 141 , the air outlet of the desktop fan 100 can be a spiral airflow, which can increase the air outlet distance and range of the desktop fan 100 and improve the performance of the desktop fan 100 .

[0057] According to some specific embodiments of the present invention, the air inlet and the air outlet 122 are respectively disposed at the two end walls of the housing 120, and the air inlet extends to the side peripheral wall of the housing 120. In this way, the air intake of the desktop fan 100 can be increased, thereby improving the efficiency of the desktop fan 100 in removing dust and sterilizing air.

[0058] Furthermore, the air inlets are arranged at intervals along the circumference of the housing 120. This ensures the air intake of the desktop fan 100, ensures the efficiency of the desktop fan 100 in removing dust and sterilizing the air, and prevents debris (such as stones, etc.) from entering the desktop fan 100, thus taking into account both the air intake and safety.

[0059] According to some specific embodiments of the present invention, Figure 8As shown, the electrostatic dust removal assembly 200 further includes a first conductive ring 260 and a second conductive ring 270. The first conductive ring 260 is provided with a first guide groove 261, and the conductive end 222a of the high potential unit 241 is embedded in the first conductive groove. Similarly, the second conductive ring 270 is provided with a second guide groove 271, and the conductive end 222b of the low potential unit 242 is embedded in the second conductive groove. The first conductive ring 260 and the second conductive ring 270 are spaced apart along the axial direction of the annular structure 240.

[0060] In addition, if Figure 8 As shown, a plurality of first guide grooves 261 are evenly spaced in the circumference of the first conductive ring 260, and a plurality of second guide grooves 271 are evenly spaced in the circumference of the second conductive ring 270. By setting the first conductive ring 260, the voltage of the high potential unit 241 can be ensured to be the same and the connection is simple; by setting the second conductive ring 270, the voltage of the low potential unit 242 can be ensured to be the same and the connection is simple, thereby making the electric field between adjacent electrode units 210 the same and stable, and the dust removal and sterilization effect of the electrostatic dust removal assembly 200 is better. In addition, the first conductive ring 260 and the second conductive ring 270 also have the function of pre-positioning, stabilizing the relative position of each electrode unit 210.

[0061] According to some specific embodiments of the present invention, the desktop fan 100 further includes a power supply end, which is mounted on the side wall of the housing 120 and is connected to the first conductive ring 260 and the second conductive ring 270 respectively.

[0062] For example, the power supply end is mounted on the outer peripheral surface of the housing 120, and the power supply end can be connected to the first conductive ring 260 and the second conductive ring 270 through a wire, saving the internal space of the desktop fan 100. The desktop fan 100 also includes an ion generator (not shown in the figure), which is connected to the power supply end, and the electrostatic dust removal component 200 and the ion generator are powered by the power supply end at the same time, reducing the components of the desktop fan 100 and further saving the space of the desktop fan 100.

[0063] In addition, the ion generator can ionize air molecules into positive ions and negative ions. The wind blown by the table fan 100 carries positive ions or negative ions. The ions can combine with microorganisms such as dust and viruses in the air to charge microorganisms such as dust and viruses, further improving the dust removal efficiency of the electrostatic dust removal component 200. And because the negative ions themselves carry excess electrons when they come into contact with bacteria, mold, viruses, etc., they will destroy the molecular protein structure in bacteria, mold, viruses, etc., causing structural changes (protein polarity reversal) or energy transfer in bacteria, mold, viruses, etc., thereby killing microorganisms such as bacteria and viruses, thereby improving the cleanliness of the air.

[0064] In the description of the present invention, it is necessary to understand that the orientations or positional relationships indicated by the terms "axial", "radial", "circumferential", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0065] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0066] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A desktop fan, characterized in that: include: A support base, wherein the support base is suitable for being placed on the ground or a table; A shell body, the shell body is connected to the support base, the shell body is provided with an air inlet and an air outlet and an air duct connecting the air inlet and the air outlet; A fan, the fan being disposed in the housing and located in the air duct; An electrostatic dust removal assembly, the electrostatic dust removal assembly is arranged in the housing and located in the air duct, the electrostatic dust removal assembly includes a plurality of electrode units, the plurality of electrode units include at least one high potential unit and at least one low potential unit, each electrode unit includes a conductive portion and an insulating portion, the conductive portion includes an electric field generator and a conductive end, and the insulating portion at least covers a portion of the electric field generator; The high potential units and the low potential units are alternately arranged in a ring structure, a dust removal air duct is formed between adjacent high potential units and low potential units, the dust removal air duct constitutes a part of the air duct, the conductive portion is located on the inner side wall of the ring structure, and the conductive end of the high potential unit is spaced apart from the conductive end of the low potential along the axial direction of the ring structure; Each electrode unit has a mounting groove on one side in the thickness direction and a mounting column on the other side, and the mounting column of each electrode unit extends into the mounting groove of the adjacent electrode unit; The thickness of each electrode unit gradually decreases radially inwardly of the electrostatic precipitator assembly.

2. The desktop fan according to claim 1, characterized in that: The conductive part and the insulating part of each electrode unit are injection molded; or The insulating portion of each electrode unit includes at least two insulator portions, and the at least two insulator portions clamp the conductive portion of the electrode unit.

3. The desktop fan according to claim 1, characterized in that: The conductive part is a conductive plastic part.

4. The desktop fan according to claim 1, characterized in that: The rotation axis of the fan coincides with the central axis of the electrostatic precipitator assembly.

5. The desktop fan according to claim 1, characterized in that: Also includes: An air outlet hood is installed on the shell and covers the air outlet, the air outlet hood includes an outer frame, an inner frame and a plurality of air outlet ribs, the outer frame is arranged around the inner frame, one end of each of the air outlet ribs is connected to the inner frame and the other end is connected to the outer frame, a plurality of the air outlet ribs are arranged at intervals along the circumference of the outer frame, and a plurality of the air outlet ribs extend spirally and radially from the inner frame to the outer frame.

6. The desktop fan according to claim 1, characterized in that: The air inlet and the air outlet are respectively arranged on the two end walls of the shell, and the air inlet extends to the side peripheral wall of the shell.

7. The desktop fan according to claim 6, characterized in that: The air inlets are multiple and spaced apart along the circumference of the shell.

8. The desktop fan according to any one of claims 1 to 7, characterized in that: The electrostatic dust removal assembly further includes a first conductive ring and a second conductive ring, the first conductive ring is provided with a first conductive groove, and the conductive end of the high potential unit is embedded in the first conductive groove; The second conductive ring is provided with a second conductive groove, the conductive end of the low potential unit is embedded in the second conductive groove, and the first conductive ring and the second conductive ring are spaced apart along the axial direction of the ring structure.

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