Electrostatic dust collection module and air purifier

Abstract

The present invention relates to an electrostatic dust collection module and an air purifier, wherein the electrostatic dust collection module comprises a bracket; a connecting shaft, which is mounted on the bracket; and a dust collection unit, which comprises a plurality of dust collecting plates; wherein the connecting shaft has a plurality of limiting parts, the plurality of limiting parts are arranged at intervals along the longitudinal direction of the connecting shaft, the connecting shaft is penetrated by the plurality of dust collecting plates, and a limiting position corresponding to one of the dust collecting plates can be formed between two adjacent limiting parts along a first direction, so that the plurality of dust collecting plates are arranged along the first direction with a preset spacing. The electrostatic dust collection module and the air purifier provided by the present invention can reliably maintain a preset spacing between the plurality of dust collecting plates through the plurality of limiting parts on the connecting shaft, so that the spacing between adjacent dust collecting plates is equal, which ensures that the electric field is uniform during the operation of the air purifier, and after long-term use, it is not easy for the adjacent dust collecting plates to cause the hazard of discharge and ignition due to excessive accumulation of dust adhesion.

Description

Technical Field

[0001] The present invention relates to the technical field of air purification, and in particular to an electrostatic dust collection module and an air purifier. Background Art

[0002] The new coronavirus is raging around the world, and people are threatened by it both during indoor activities and outdoor travel. Electrostatic air purifiers use high-voltage electrostatic fields to kill bacteria, viruses, molds, spores, etc. in the air, opening up a new path for defense against the new coronavirus.

[0003] Electrostatic air purifiers use reusable dust collecting plates to purify air pollutants. After using them for a period of time, you only need to take down the dust collecting plates, clean them, and put them back into the machine for continued use.

[0004] However, improper installation of the dust collecting plates of existing electrostatic air purifiers can easily lead to unequal spacing between adjacent integrated boards, causing uneven electric fields during operation of the electrostatic air purifier. After long-term use of the electrostatic air purifier, a large amount of fine dust will adhere to the surface of the dust collecting plates. When too much dust accumulates, discharge and spark hazards can easily occur between two adjacent integrated boards with a small spacing. Summary of the invention

[0005] Based on this, it is necessary to provide an electrostatic dust collection module and air purifier with uniform spacing between adjacent dust collecting plates to address the problem that improper disassembly and assembly of the dust collecting plates of the existing electrostatic air purifier may easily lead to unequal spacing between adjacent integrated boards, resulting in uneven electric field during the operation of the electrostatic air purifier.

[0006] In one aspect of the present invention, there is provided an electrostatic dust collection module, comprising:

[0007] Bracket;

[0008] A connecting shaft, mounted on the bracket;

[0009] A dust collecting unit, comprising a plurality of dust collecting plates;

[0010] Wherein, the connecting shaft has a plurality of limiting parts, and the plurality of limiting parts are arranged at intervals along the longitudinal direction of the connecting shaft. The connecting shaft passes through the plurality of dust collecting plates, and a limiting position corresponding to a dust collecting plate can be formed between two adjacent limiting parts along the first direction, so that the plurality of dust collecting plates are arranged along the first direction at a preset spacing.

[0011] In one embodiment, each of the dust collecting plates is provided with a first communicating through hole, and the connecting shaft passes through the first communicating through hole;

[0012] Two adjacent limiting portions are located on two sides of the first communicating through hole of a corresponding dust collecting plate along the first direction.

[0013] In one embodiment, the connecting shaft includes a first penetration position and a first limiting position, and when the connecting shaft is located at the first penetration position, a projection of the limiting portion along the first direction toward the first communicating through hole is located in the first communicating through hole;

[0014] When the connecting shaft is located at the first limiting position, a projection of the limiting portion along the first direction toward the first communicating through hole is at least partially located outside the first communicating through hole.

[0015] In one embodiment, the connecting shaft has a rotating shaft, and the connecting shaft can rotate around the rotating shaft to switch between the first penetration position and the first limiting position.

[0016] In one embodiment, the first communicating through hole is elliptical in shape, the limiting portion is elliptical in shape, and the major axis dimension of the limiting portion is greater than or equal to the minor axis dimension of the first communicating through hole;

[0017] The major axis dimension of the limiting portion is smaller than the major axis dimension of the first connecting through hole.

[0018] In one embodiment, one end of the connecting shaft is provided with a screw-on buckle, and the bracket is provided with a screw-on groove;

[0019] When the connecting shaft switches from the first penetration position to the first limiting position, the screw-on buckle cooperates with the screw-on groove to limit the connecting shaft to the bracket along the first direction.

[0020] In one of the embodiments, a connecting portion is provided at one end of the connecting shaft away from the screw-on buckle, and the electrostatic dust collection module further includes a connecting piece, and the connecting portion of the connecting shaft is connected to the bracket via the connecting piece.

[0021] In one embodiment, the connecting portion includes a threaded hole, and the connecting member includes a threaded member, and the threaded member passes through the bracket and is connected to the threaded hole.

[0022] In one embodiment, the bracket is provided with at least one positioning portion, and each of the positioning portions includes a plurality of sub-positioning portions arranged along the first direction;

[0023] Each of the sub-positioning portions cooperates with one side of a corresponding dust collecting plate along its longitudinal direction, so that the dust collecting plate is positioned on the bracket along the first direction.

[0024] In one of the embodiments, the sub-positioning portion includes a positioning groove.

[0025] In one of the embodiments, the bracket includes two positioning parts, and the multiple sub-positioning parts of the two positioning parts are respectively matched with two sides of the multiple dust collecting plates along the longitudinal direction thereof.

[0026] In one of the embodiments, the bracket is further provided with at least one supporting portion, and the at least one supporting portion is supported on one side of the plurality of dust collecting plates along the width direction thereof.

[0027] In one embodiment, the support portion includes two;

[0028] The two support parts are respectively matched with two ends of the plurality of dust collecting plates along the longitudinal direction thereof.

[0029] In one embodiment, the connecting shaft further comprises at least one conductive portion, and each conductive portion is located between two adjacent limiting portions;

[0030] Each of the conductive parts can contact with a corresponding dust collecting plate;

[0031] The connecting shaft is capable of conducting electric current.

[0032] In one embodiment, the plurality of dust collecting plates include a plurality of positive dust collecting plates and a plurality of negative dust collecting plates, and the plurality of positive dust collecting plates and the plurality of negative dust collecting plates are alternately arranged along the first direction;

[0033] The connecting shafts include at least two, each of the positive electrode dust collecting plates is limited along the first direction between two adjacent limiting portions of at least one of the connecting shafts, and each of the negative electrode dust collecting plates is limited along the first direction between two adjacent limiting portions of at least another of the connecting shafts;

[0034] Among them, the at least one connecting shaft corresponding to the positive dust collecting plate can import positive current, and the at least another connecting shaft corresponding to the negative dust collecting plate can import negative current.

[0035] In one embodiment, the positive electrode dust collecting plate and the negative electrode dust collecting plate each include a second communicating through hole, and a gap is provided between the second communicating through hole and the connecting shaft in a radial direction;

[0036] Each of the connecting shafts corresponding to the positive electrode dust collecting plates is penetrated along the first direction by the first connecting through holes of the plurality of positive electrode dust collecting plates and the second connecting through holes of the plurality of negative electrode dust collecting plates;

[0037] Each of the connecting shafts corresponding to the negative electrode dust collecting plates passes through the first connecting through holes of the plurality of negative electrode dust collecting plates and the second connecting through holes of the plurality of positive electrode dust collecting plates along the first direction.

[0038] In one of the embodiments, the at least one connecting axis corresponding to the positive electrode dust collecting plate and the at least another connecting axis corresponding to the negative electrode dust collecting plate are staggeredly distributed along a second direction perpendicular to the first direction.

[0039] In one embodiment, the connecting shaft includes a second penetration position and a second limiting position, and when the connecting shaft is located at the second penetration position, the projection of the conductive portion along the first direction toward the first connecting through hole is located in the first connecting through hole, and there is a gap between the conductive portion and the first connecting through hole in the radial direction;

[0040] When the connecting shaft is located at the second limiting position, the projection of the conductive portion along the first direction toward the first communicating through hole is located in the first communicating through hole and at least partially intersects with the first communicating through hole.

[0041] In one embodiment, the shape of the first connecting through hole is elliptical, the outer contour of the conductive portion is elliptical, and the major axis size of the conductive portion is equal to the minor axis size of the first connecting through hole;

[0042] The major axis dimension of the conductive portion is smaller than the major axis dimension of the first connecting through hole.

[0043] Another aspect of the present invention provides an air purifier, comprising the electrostatic dust collection module mentioned above.

[0044] The electrostatic dust collection module and air purifier described above can separate the multiple dust collecting plates from each other and maintain a preset spacing through the multiple limiting parts on the connecting shaft, and the connecting shaft is installed on the bracket, so that the connecting shaft is reliably supported. The electrostatic dust collection module and air purifier of the present invention can reliably maintain a preset spacing between the multiple dust collecting plates through the multiple limiting parts on the connecting shaft. Therefore, the spacing between adjacent dust collecting plates is equal, ensuring that the electric field is uniform during the operation of the air purifier. After long-term use, it is not easy for the adjacent dust collecting plates to accumulate too much dust and cause discharge and spark hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 is a schematic structural diagram of an electrostatic dust collection module in one embodiment of the present invention;

[0046] Figure 2 for Figure 1 The schematic diagram of the exploded structure of the electrostatic dust collection module shown;

[0047] Figure 3 This is a schematic structural diagram of a connecting shaft of an electrostatic dust collection module in one embodiment of the present invention;

[0048] Figure 4 for Figure 3 An enlarged schematic diagram of point A of the connecting shaft is shown;

[0049] Figure 5 for Figure 1 A schematic diagram of the structure of the bracket in the electrostatic dust collection module shown;

[0050] Figure 6 for Figure 5 An enlarged schematic diagram of position B of the bracket shown;

[0051] Figure 7 for Figure 1 A front view structural schematic diagram of the electrostatic dust collection module shown in which the connecting shaft is in the first insertion position or the second insertion position;

[0052] Figure 8 for Figure 7 A schematic cross-sectional structure diagram of an electrostatic dust collection module is shown;

[0053] Fig. 9 for Figure 8 An enlarged schematic diagram of the electrostatic dust collection module at C shown;

[0054] Fig.10 for Figure 1 A schematic diagram of the front view structure of the electrostatic dust collection module shown in which the connecting shaft is in the first limit position or the second limit position;

[0055] Fig.11 for Figure 7 A schematic cross-sectional structure diagram of an electrostatic dust collection module is shown;

[0056] Fig.12 for Fig.11 An enlarged schematic diagram of the electrostatic dust collection module at D shown;

[0057] Fig.13 for Figure 5 An enlarged schematic diagram of the bracket at E shown;

[0058] Fig.14 for Figure 3 An enlarged schematic diagram of the connection shaft at F is shown;

[0059] Fig.15 for Figure 3 An enlarged schematic diagram of the connection shaft at G is shown;

[0060] Fig.16 Schematic diagram of the structure of a positive electrode dust collecting plate in one embodiment of the present invention;

[0061] Fig.17 Schematic diagram of the structure of a negative electrode dust collecting plate in one embodiment of the present invention. DETAILED DESCRIPTION

[0062] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0063] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0064] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships 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, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0065] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0066] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0067] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0068] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0069] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the elements in the drawings are drawn only as examples and not necessarily according to the true scale.

[0070] Figure 1 A schematic diagram of the structure of an electrostatic dust collection module in an embodiment of the present invention is shown; Figure 2 for Figure 1 The schematic diagram of the decomposed structure of the electrostatic dust collection module shown in FIG. Figure 3 is a schematic structural diagram of a connecting shaft of an electrostatic dust collecting module in an embodiment of the present invention, Figure 4 for Figure 3 An enlarged schematic diagram of point A of the connecting shaft is shown; for ease of description, the accompanying drawings only show structures related to the embodiments of the present invention.

[0071] Referring to the drawings, an embodiment of the present invention provides an electrostatic dust collection module 100 , including a bracket 10 , a connecting shaft 20 and a dust collection unit 30 .

[0072] The connecting shaft 20 is mounted on the bracket 10, and the dust collecting unit 30 includes a plurality of dust collecting plates 31, wherein the connecting shaft 20 has a plurality of limiting portions 21, and the plurality of limiting portions 21 are arranged at intervals along the longitudinal direction of the connecting shaft 20, and the connecting shaft 20 is penetrated by a plurality of dust collecting plates 31, and a limiting position corresponding to a dust collecting plate 31 can be formed between two adjacent limiting portions 21 along the first direction, so that the plurality of dust collecting plates are arranged along the first direction at a preset spacing. Specifically, the first direction is arranged parallel to the thickness direction of the dust collecting plate 31.

[0073] In this way, the multiple dust collecting plates 31 can be separated from each other and maintained at a preset distance through the multiple limiting parts 21 on the connecting shaft 20, and the connecting shaft 20 is installed on the bracket 10, so that the connecting shaft 20 is reliably supported. The electrostatic dust collecting module 100 of the present invention reliably maintains a preset distance between the multiple dust collecting plates 31 through the multiple limiting parts 21 on the connecting shaft 20, so that the distances between adjacent dust collecting plates 31 are equal, ensuring that the electric field is uniform during the operation of the air purifier. After long-term use, it is not easy for the adjacent dust collecting plates 31 to cause discharge and ignition hazards due to excessive accumulation of fine dust.

[0074] like Figure 5 As shown, in some embodiments, the bracket 10 includes a plurality of side walls 11, and the plurality of side walls 11 are arranged to form a receiving space 12, and the dust collecting unit 30 is arranged in the receiving space 12. Specifically, the bracket 10 is annular, and more specifically, the bracket 10 is rectangular.

[0075] Further, the bracket 10 has a first opening and a second opening connected to the accommodating space 12, and the first opening, the accommodating space 12 and the second opening form a wind channel for space circulation. Further, the first opening and the second opening are arranged opposite to each other. Specifically, the first opening and the second opening are arranged opposite to each other along the width direction of the dust collecting plate 31.

[0076] like Figure 6 As shown, in some embodiments, the bracket 10 is provided with at least one positioning portion 13, each positioning portion 13 includes a plurality of sub-positioning portions 131 arranged along the first direction, and each sub-positioning portion 131 cooperates with a corresponding dust collecting plate 31 along one side of its longitudinal direction, so that the dust collecting plate 31 is positioned on the bracket 11 along the first direction. In this way, the limitation of one side of the dust collecting plate 31 along its longitudinal direction is achieved, and before the dust collecting plate 31 is limited by the connecting shaft 20, the pre-positioning of the multiple dust collecting plates 31 is played. In addition, since the dust collecting plate 31 is in the shape of a long thin sheet, in order to prevent the dust collecting plate 31 from deforming on both sides after the limiting, the positioning portion 13 is set to further maintain the spacing between the multiple dust collecting plates 31.

[0077] Further, the sub-positioning portion 13 includes a positioning groove. Specifically, the positioning groove includes a plurality of positioning grooves, and the plurality of positioning grooves are arranged at intervals along the second direction, and the second direction is arranged parallel to the width direction of the dust collecting plate 31. In other embodiments, the positioning grooves may also extend continuously along the second direction, which is not limited here.

[0078] In some embodiments, the bracket 10 includes two positioning parts 13, and the multiple sub-positioning parts 131 of the two positioning parts 13 are respectively matched with the two sides of the multiple dust collecting plates 31 along the longitudinal direction thereof. In this way, the two sides of the dust collecting plates 31 along the longitudinal direction thereof can be limited, and the two sides of the dust collecting plates 31 along the longitudinal direction thereof are evenly stressed, so that the spacing between the multiple dust collecting plates 31 is maintained more reliably.

[0079] In some embodiments, the bracket 10 is further provided with at least one supporting portion 14, and at least one supporting portion 14 is supported on one side of the plurality of dust collecting plates 31 along its width direction. In this way, reliable support of the plurality of dust collecting plates 31 on the bracket 10 can be achieved.

[0080] Furthermore, the support portion 14 includes two, and the two support portions 14 are respectively matched with the two ends of the multiple dust collecting plates 31 along the longitudinal direction thereof. In this way, the support 14 will not affect the size of the first opening or the second opening, and will not block the airflow entering the accommodation space, causing the problem of uneven dust collection between the multiple dust collecting plates 31. In addition, the support portion 14 is supported at the two ends of the multiple dust collecting plates 31 along the longitudinal direction thereof, and can also be a reliable support for the multiple dust collecting plates 31.

[0081] Further, the support portion 14 includes a plurality of sub-support portions 141, each of which supports a corresponding dust collecting plate 31. Specifically, each sub-support portion 141 is connected to a corresponding sub-positioning portion 131. In this way, when the dust collecting plate 31 is positioned by the sub-positioning portion 141, it can be supported by the sub-support portion 141, making the structure of the bracket 10 more compact.

[0082] Please refer again Figure 2 In the embodiment of the present invention, each dust collecting plate 31 is provided with a first communicating through hole 311, the connecting shaft 20 passes through the first communicating through hole 311, and the two connected stoppers 21 are located on both sides of the first communicating through hole 311 of the corresponding dust collecting plate 31 along the first direction. The first communicating through hole 311 is used to simplify the way of passing the connecting shaft 20, and does not affect the external dimensions of the electrostatic dust collecting module 100, which is conducive to the miniaturization of the electrostatic dust collecting module 100.

[0083] Furthermore, the connecting shaft 20 includes a first insertion position and a first limiting position. Figure 7 to Figure 9 As shown, when the connecting shaft 20 is located at the first insertion position, the projection of the limiting portion 21 along the first direction toward the first communicating through hole 311 is located inside the first communicating through hole 311, as shown in FIG. Figure 10 to Figure 12 As shown, when the connecting shaft 20 is located at the first limiting position, the projection of the limiting portion 21 along the first direction toward the first communicating through hole 311 is at least partially located outside the first communicating through hole 311. In this way, when the connecting shaft 20 is in the first penetration position, it is convenient for the connecting shaft 20 to penetrate multiple dust collecting plates 31 without being blocked by the limiting portion 21, and when the connecting shaft 20 is in the first limiting position, the first communicating through hole 311 can be used to block the limiting portion 21 on both sides thereof, thereby forming a limit.

[0084] Furthermore, the connecting shaft 20 has a rotating shaft, and the connecting shaft 20 can rotate around the rotating shaft to switch between the first insertion position and the first limit position. In this way, the position switching method can be simplified, and the structure of the connecting shaft 20 is simplified. In other embodiments, other methods can also be used to switch the connecting shaft 20 between the first insertion position and the first limit position, which is not limited here.

[0085] Specifically in one embodiment, the shape of the first communication through hole 311 is elliptical, the shape of the limiting portion 21 is elliptical, the major axis size of the limiting portion 21 is greater than or equal to the minor axis size of the first communication through hole 311, and the major axis size of the limiting portion 21 is smaller than the major axis size of the first communication through hole 311. In this way, when the connecting shaft 20 is in the first penetration position, the major axis of the limiting portion 21 can be aligned with the major axis of the first communication through hole 311, so that the connecting shaft 20 can penetrate multiple dust collecting plates 31, and when the connecting shaft 20 is in the first limiting position, the connecting shaft 20 can be rotated to align the major axis of the limiting portion 21 with the minor axis of the first communication through hole 311, so that the dust collecting plate 31 is limited between two adjacent limiting portions 21. This structure is simple and easy to operate.

[0086] like Fig.13 and Fig.14 As shown, in some embodiments, a screw-on buckle 22 is provided at one end of the connecting shaft 20, and the bracket 10 is provided with a screw-on groove 15. When the connecting shaft 20 switches from the first insertion position to the first limiting position, the screw-on buckle 22 cooperates with the screw-on groove 15 to limit the connecting shaft 20 along the first direction to the bracket 10. The method of arranging the screw-on buckle 22 to cooperate with the screw-on groove 15 to limit the connecting shaft 20 to the bracket 10 is simple.

[0087] Specifically, the side wall 11 of the bracket 11 is provided with a through hole 111 for the connecting shaft 20 to pass through, and the screwing groove 15 is provided at the through hole 111. More specifically, the through hole 111 is provided concentrically with the first communicating through hole 311.

[0088] More specifically, the outer surface of the screw-on buckle 22 is provided with a cross groove or a slotted groove to facilitate the connection shaft 20 to be screwed into the screw-on groove 15 by means of an external tool, such as a screwdriver or a screwdriver.

[0089] In some specific embodiments, the screw-on buckle 22 is provided with a plurality of buckle portions 221 protruding outward along its circumference, and the groove surface of the screw-on groove 15 is provided with an abutment portion 151. When the screw-on buckle 22 is screwed into the screw-on groove 15, one of the buckle portions 221 can abut against the abutment portion 151 to form a positioning position of the screw-on buckle 22. When the screw-on buckle 22 is in the positioning position, the connecting shaft 20 is in the first limiting position.

[0090] like Fig.15 As shown, in some embodiments, a connecting portion 23 is provided at one end of the connecting shaft 20 away from the screw-on buckle 22, and the electrostatic dust collecting module 100 further includes a connecting member 40, and the connecting portion 23 of the connecting shaft 20 is connected to the bracket 10 through the connecting member 40. In this way, the connecting member 23 is connected to the connecting member 40 to realize that the connecting shaft 20 is further limited at the end away from the screw-on buckle 22, so as to ensure that the connecting shaft 20 is reliably installed relative to the bracket 10.

[0091] Further, the connecting portion 23 includes a threaded hole, and the connecting member 40 includes a threaded member, and the threaded member passes through the bracket and is connected to the threaded hole. This connection structure is simple. Specifically, the side wall 11 of the bracket 10 is provided with a connecting through hole 112, and the threaded member passes through the connecting through hole 112 and is connected to the threaded hole.

[0092] Please see here Figure 4 In an embodiment of the present invention, the connecting shaft 20 further includes at least one conductive portion 24, each conductive portion 24 is located between two adjacent limiting portions 21, and each conductive portion 24 can contact a corresponding dust collecting plate 31, wherein the connecting shaft 20 can introduce current. In this way, by allowing the connecting shaft 20 to introduce current and conducting the multiple dust collecting plates 31 through the conductive portion 24 on the connecting shaft 20, the electrostatic dust collecting module 100 can work normally. Providing the conductive structure on the connecting shaft 20 simplifies the structure of the electrostatic dust collecting module 100 while also making the structure of the electrostatic dust collecting module 100 more compact.

[0093] Please refer again Figure 2, further, the plurality of dust collecting plates 31 include a plurality of positive dust collecting plates 312 and a plurality of negative dust collecting plates 313, the plurality of positive dust collecting plates 312 and the plurality of negative dust collecting plates 313 are alternately arranged along the first direction, the connecting shaft 20 includes at least two, each positive dust collecting plate 312 is limited between two adjacent limiting portions 21 of at least one connecting shaft 20 along the first direction, and each negative dust collecting plate 313 is limited between two adjacent limiting portions 21 of at least another connecting shaft 20 along the first direction, wherein at least one connecting shaft 20 corresponding to the positive dust collecting plate 312 can import positive current, and at least another connecting shaft 20 corresponding to the negative dust collecting plate 313 can import negative current. In this way, the conductive portions 24 on different connecting shafts 20 can contact different dust collecting plates 31, so that the positive dust collecting plate 312 can import positive current, and the negative dust collecting plate 311 can import negative current, and the structure of the electrostatic dust collecting module 100 is simpler.

[0094] like Fig.16 and Fig.17 As shown, further, the positive dust collecting plate 312 and the negative dust collecting plate 313 both include a second connecting through hole 314, and a gap is provided between the second connecting through hole 314 and the connecting shaft 20 along the radial direction. Each connecting shaft 20 corresponding to the positive dust collecting plate 312 is penetrated by a plurality of first connecting through holes 311 of the positive dust collecting plate 312 and a plurality of second connecting through holes 314 of the negative dust collecting plate 313 along the first direction. Each connecting shaft 20 corresponding to the negative dust collecting plate 313 is penetrated by a plurality of first connecting through holes 311 of the negative dust collecting plate 313 and a plurality of second connecting through holes 314 of the positive dust collecting plate 312 along the first direction. By providing the second connecting through hole 314, it is possible to avoid the connection shaft 20 contacting the negative dust collecting plate 313 and introducing the positive current into the negative dust collecting plate 313 when the positive current is passed through the positive dust collecting plate 312, and it is possible to avoid the connection shaft 20 contacting the positive dust collecting plate 312 and introducing the positive current into the positive dust collecting plate 313 when the negative current is passed through the negative dust collecting plate 313, thereby ensuring the reliable operation of the electrostatic dust collecting module 100.

[0095] In some embodiments, at least one connecting shaft 20 corresponding to the positive dust collecting plate 312 and at least another connecting shaft 20 corresponding to the negative dust collecting plate 313 are staggered along a second direction perpendicular to the first direction. It should be noted that when the first direction is parallel to the thickness direction of the dust collecting plate 31, the second direction may be a direction parallel to the width direction of the dust collecting plate 31, or the second direction may be a direction parallel to the longitudinal direction of the dust collecting plate 31. In this way, the current introduced from the conductive part 24 to the positive dust collecting plate 312 and the negative dust collecting plate 313 can be evenly distributed. Specifically in one embodiment, the connecting shaft 20 includes 6, 3 of which are connected to the positive dust collecting plate 312 through the conductive part 24, and the other 3 are connected to the negative dust collecting plate 313 through the conductive part 24, and the 6 connecting shafts 20 are arranged in two rows in a width direction parallel to the dust collecting plate 31, and the 3 connecting shafts 20 in each row are arranged in a longitudinal direction parallel to the dust collecting plate 31.

[0096] In some embodiments, the connecting shaft 20 includes a second penetration position and a second limit position, please refer to Figure 7 to Figure 9 When the connecting shaft 20 is located at the second penetration position, the projection of the conductive portion 24 along the first direction toward the first connecting through hole 311 is located inside the first connecting through hole 311, and there is a gap between the conductive portion 24 and the first connecting through hole 311 along the radial direction. Please refer to Figure 10 to Figure 12 When the connecting shaft 20 is located at the second limit position, the projection of the conductive part 24 along the first direction toward the first connecting through hole 311 is located in the first connecting through hole and at least partially intersects with the first connecting through hole 311. Specifically, the second penetration position is the same as the first penetration position, and the second limit position is the same as the first limit position. In this way, the conductive part 24 can complete the contact with the dust collecting plate 31 in the first connecting through hole 311, the structure is simpler, and the conductive part 24 can be operated simultaneously with the limit part 21 to complete the corresponding action, and the operation is also more convenient.

[0097] Further, the shape of the first connecting through hole 311 is elliptical, the shape of the conductive part 24 is elliptical, the long axis size of the conductive part 24 is equal to the short axis size of the first connecting through hole 311, and the long axis size of the conductive part 24 is smaller than the long axis size of the first connecting through hole 311. In this way, when the connecting shaft 20 is in the second insertion position, the long axis of the conductive part 24 can be aligned with the long axis of the first connecting through hole 311, so that the connecting shaft 20 can be penetrated with multiple dust collecting plates 31, and the connecting shaft 20 can be rotated so that the connecting shaft 20 is in the second limiting position, the long axis of the conductive part 24 is aligned with the short axis of the first connecting through hole 311, and the two sides of the conductive part 24 along its long axis are respectively in contact with the two sides of the first connecting through hole 311 along its short axis, so that the dust collecting plate 31 is connected to the conductive part 24. This structure is simple and easy to operate.

[0098] Based on the same invention, the present invention also provides an air purifier, including the above-mentioned electrostatic dust collection module 100.

[0099] The electrostatic dust collection module 100 and the air purifier provided by the embodiment of the present invention have the following beneficial effects:

[0100] Through the multiple limiting parts 21 on the connecting shaft 20, the multiple dust collecting plates 31 can be separated from each other and maintain a preset distance, and the connecting shaft 20 is installed on the bracket 10, so that the connecting shaft 20 is reliably supported. The electrostatic dust collecting module 100 and the air purifier of the present invention reliably maintain a preset distance between the multiple dust collecting plates 31 through the multiple limiting parts 21 on the connecting shaft 20, so that the distances between adjacent dust collecting plates 31 are equal, ensuring that the electric field is uniform during the operation of the air purifier. After long-term use, it is not easy for the adjacent dust collecting plates 31 to accumulate too much dust and cause discharge and spark hazards.

[0101] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0102] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An electrostatic dust collection module (100), It is characterized in that include: Bracket (10); A connecting shaft (20) is mounted on the bracket (10); a through hole (111) is provided on the side wall (11) of the bracket (10) for the connecting shaft (20) to pass through; The dust collecting unit (30) comprises a plurality of dust collecting plates (31), each of the dust collecting plates (31) being provided with a first communicating through hole (311), and the connecting shaft (20) passing through the first communicating through hole (311); The connecting shaft (20) has a plurality of limiting portions (21), the plurality of limiting portions (21) being arranged at intervals along the longitudinal direction of the connecting shaft (20), the connecting shaft (20) being provided with the plurality of dust collecting plates (31), and a limiting position corresponding to a dust collecting plate (31) can be formed between two adjacent limiting portions (21) along the first direction, so that the plurality of dust collecting plates (31) are arranged along the first direction at a preset spacing; The connecting shaft (20) further comprises at least one conductive portion (24), each conductive portion (24) being located between two adjacent limiting portions (21), and each conductive portion (24) being capable of contacting a corresponding dust collecting plate (31); The plurality of dust collecting plates (31) include a plurality of positive electrode dust collecting plates (312) and a plurality of negative electrode dust collecting plates (313), and the plurality of positive electrode dust collecting plates (312) and the plurality of negative electrode dust collecting plates (313) are alternately arranged along the first direction; The connecting shafts (20) include at least two, each of the positive electrode dust collecting plates (312) is limited along the first direction between two adjacent limiting portions (21) of at least one of the connecting shafts (20), and each of the negative electrode dust collecting plates (313) is limited along the first direction between two adjacent limiting portions (21) of at least another of the connecting shafts (20), and the at least one connecting shaft (20) corresponding to the positive electrode dust collecting plate (312) can import positive current, and the at least another connecting shaft (20) corresponding to the negative electrode dust collecting plate (313) can import negative current; The positive electrode dust collecting plate (312) and the negative electrode dust collecting plate (313) both comprise a second communicating through hole (314); a gap is provided between the second communicating through hole (314) and the connecting shaft (20) in a radial direction; each connecting shaft (20) corresponding to the positive electrode dust collecting plate (312) is penetrated along the first direction by the first communicating through holes (311) of the plurality of positive electrode dust collecting plates (312) and the second communicating through holes (314) of the plurality of negative electrode dust collecting plates (313); each connecting shaft (20) corresponding to the negative electrode dust collecting plate (313) is penetrated along the first direction by the first communicating through holes (311) of the plurality of negative electrode dust collecting plates (313) and the second communicating through holes (314) of the plurality of positive electrode dust collecting plates (312).

2. The electrostatic dust collection module (100) according to claim 1, It is characterized in that Two adjacent limiting portions (21) are located on two sides of the first communicating through hole (311) corresponding to a dust collecting plate (31) along the first direction.

3. The electrostatic dust collection module (100) according to claim 2, It is characterized in that The connecting shaft (20) comprises a first penetration position and a first limiting position, and when the connecting shaft (20) is located at the first penetration position, a projection of the limiting portion (21) along the first direction toward the first communicating through hole (311) is located within the first communicating through hole (311); When the connecting shaft (20) is located at the first limiting position, a projection of the limiting portion (21) along the first direction toward the first communicating through hole (311) is at least partially located outside the first communicating through hole (311).

4. The electrostatic dust collection module (100) according to claim 3, It is characterized in that The connecting shaft (20) has a rotating shaft, and the connecting shaft (20) can rotate around the rotating shaft to switch between the first penetration position and the first limit position.

5. The electrostatic dust collection module (100) according to claim 4, It is characterized in that The first communicating through hole (311) is elliptical in shape, the limiting portion (21) is elliptical in shape, and the major axis dimension of the limiting portion (21) is greater than or equal to the minor axis dimension of the first communicating through hole (311); The major axis dimension of the limiting portion (21) is smaller than the major axis dimension of the first communicating through hole (311).

6. The electrostatic dust collection module (100) according to claim 4, It is characterized in that One end of the connecting shaft (20) is provided with a screw-on buckle (22), and the bracket (10) is provided with a screw-on groove (15); When the connecting shaft (20) switches from the first penetration position to the first limiting position, the screw-on buckle (22) cooperates with the screw-on groove (15) so that the connecting shaft (20) is limited to the bracket (10) along the first direction.

7. The electrostatic dust collection module (100) according to claim 6, It is characterized in that A connecting portion (23) is provided at one end of the connecting shaft (20) away from the screw-on buckle (22); the electrostatic dust collection module (100) further comprises a connecting member (40); and the connecting portion (23) of the connecting shaft (20) is connected to the bracket (10) via the connecting member (40).

8. The electrostatic dust collection module (100) according to claim 7, It is characterized in that The connecting portion (23) comprises a threaded hole, and the connecting member (40) comprises a threaded member, wherein the threaded member passes through the bracket (10) and is connected to the threaded hole.

9. The electrostatic dust collection module (100) according to claim 1, It is characterized in that The bracket (10) is provided with at least one positioning portion (13), and each positioning portion (13) comprises a plurality of sub-positioning portions (131) arranged along the first direction; Each of the sub-positioning portions (131) cooperates with one side of a corresponding dust collecting plate (31) along its longitudinal direction, so that the dust collecting plate (31) is positioned on the bracket (10) along the first direction.

10. The electrostatic dust collection module (100) according to claim 9, It is characterized in that The sub-positioning portion (131) comprises a positioning groove.

11. The electrostatic dust collection module (100) according to claim 9, It is characterized in that The bracket (10) comprises two positioning parts (13), and the plurality of sub-positioning parts (131) of the two positioning parts (13) respectively cooperate with two sides of the plurality of dust collecting plates (31) along their longitudinal direction.

12. The electrostatic dust collection module (100) according to claim 1, It is characterized in that The bracket (10) is further provided with at least one supporting portion (14), and the at least one supporting portion (14) is supported on one side of the plurality of dust collecting plates (31) along the width direction thereof.

13. The electrostatic dust collection module (100) according to claim 12, It is characterized in that The support part (14) comprises two; The two support portions (14) respectively cooperate with two ends of the plurality of dust collecting plates (31) along their longitudinal direction.

14. The electrostatic dust collection module (100) according to claim 1, It is characterized in that The at least one connecting axis (20) corresponding to the positive electrode dust collecting plate (312) and the at least another connecting axis (20) corresponding to the negative electrode dust collecting plate (313) are staggeredly distributed along a second direction perpendicular to the first direction.

15. The electrostatic dust collection module (100) according to claim 14, It is characterized in that The connecting shaft (20) comprises a second penetration position and a second limiting position, and when the connecting shaft (20) is located at the second penetration position, a projection of the conductive portion (24) along the first direction toward the first communicating through hole (311) is located within the first communicating through hole (311), and a gap is formed between the conductive portion (24) and the first communicating through hole (311) in a radial direction; When the connecting shaft (20) is located at the second limiting position, the projection of the conductive portion (24) along the first direction towards the first connecting through hole (311) is located within the first connecting through hole (311) and at least partially intersects with the first connecting through hole (311).

16. The electrostatic dust collection module (100) according to claim 15, It is characterized in that The shape of the first communicating through hole (311) is elliptical, the outer contour of the conductive portion (24) is elliptical, and the major axis dimension of the conductive portion (24) is equal to the minor axis dimension of the first communicating through hole (311); The major axis dimension of the conductive portion (24) is smaller than the major axis dimension of the first connecting through hole (311).

17. An air purifier, It is characterized in that Comprising the electrostatic dust collection module (100) as claimed in any one of claims 1 to 16.

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