An air outlet device

Abstract

The air outlet device provided by the present invention includes: an air duct, an air passage is provided inside, a frame is provided in the air passage, and the frame is connected to the inner wall of the air duct; a cover body is snap-connected with the frame body and formed with a receiving cavity connected to the air passage, and an ion generating component is installed in the receiving cavity; a filter screen is arranged adjacent to the frame body and is suitable for filtering the gas flowing through the air passage. By adding two elements, the ion generating component and the filter screen, into the air passage in the air duct, they cooperate with each other during the gas flow in the air passage, and sterilizing ions and filtering dirt are respectively introduced into and out of the air passage, thereby achieving the function of sterilizing and filtering the gas. At the same time, by providing a snap-connected cover body and frame body, assembly can be achieved without connectors, reducing the assembly process, facilitating the installation of the ion generating component, and improving production efficiency, effectively overcoming the defects of the fan structure with sterilization and air filtering functions in the prior art, which is complex to assemble and has high production and maintenance costs.

Description

Technical Field

[0001] The present invention relates to the technical field of fans, and particularly to an air outlet device. Background Art

[0002] Nowadays, with the development of the times, people's pursuit of a healthy life has become increasingly strong. For fans, consumers increasingly value their additional functions of sterilizing the indoor environment and air filtering.

[0003] However, various complex purification and filtration components pose greater challenges to the originally simple fan structure. When installing the ion generation component into the fan, multiple connecting parts are required, and a complex assembly process is needed, which increases the production and maintenance costs of the fan. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects of the complex assembly of the fan structure with sterilization and air filtering functions in the prior art, and the high production and maintenance costs, so as to provide an air outlet device.

[0005] The present invention provides an air outlet device, including:

[0006] A wind cylinder, with an air passage arranged inside, a frame body is arranged in the air passage, and the frame body is connected to the inner wall of the wind cylinder;

[0007] A cover body, which is snap-fitted to the frame body, an accommodation cavity communicating with the air passage is formed between the cover body and the frame body, and an ion generation component is arranged in the accommodation cavity;

[0008] A filter screen, which is arranged adjacent to the frame body and is suitable for filtering the gas flowing through the air passage.

[0009] The frame body includes an inner groove part and several support parts. The inner groove part is arranged inside the air passage, is spaced from the inner wall of the wind cylinder, and is provided with several first snap-fitting parts distributed thereon. The support parts connect the inner groove part and the inner wall of the wind cylinder;

[0010] The cover body includes a cover plate main body, which is arranged in the air passage. Several second snap-fitting parts are distributed in the direction towards the inner groove part. The second snap-fitting parts are arranged corresponding to the positions of the first snap-fitting parts and are snap-fitted to the first snap-fitting parts.

[0011] At least one of the support parts is provided with a first groove body, the first groove body communicates with the inner groove part and has the same opening direction as the inner groove part;

[0012] The cover body further includes at least one wire pressing plate, which is correspondingly buckled on the first groove body and is snap-fitted to the first groove body.

[0013] A plurality of the first engaging members are evenly distributed along the outer edge of the inner groove member, and a plurality of the second engaging members are evenly distributed along the outer edge of the cover plate body.

[0014] The inner groove member includes: a motor groove; an outer ring groove provided outside the motor groove, and an ion mounting assembly is provided on a side thereof facing the cover plate body and is adapted to carry the ion generating assembly.

[0015] The ion generating assembly includes:

[0016] A needle electrode assembly including a first mounting substrate and a needle electrode member. The first mounting substrate includes a first plate member and a second plate member connected and arranged. A plurality of first mounting holes are provided on the first plate member, and the needle electrode member is provided on the second plate member;

[0017] A high-voltage generator including a second mounting substrate and a high-voltage assembly provided on the second mounting substrate. Second mounting holes are provided on both sides of the second mounting substrate. The needle electrode member is adapted to release sterilizing ions into the air passing channel under the action of the high-voltage assembly.

[0018] The ion mounting assembly includes:

[0019] A first mounting groove provided at the bottom of the outer ring groove and adapted to carry the needle electrode assembly. The first mounting groove includes a mounting side post and a needle passing hole. The mounting side post protrudes along the port of the first mounting groove and passes through the first mounting hole. The needle passing hole is provided at the bottom side of the first mounting groove and communicates with the air passing channel and is adapted to allow the needle electrode member to pass through;

[0020] At least two limiting posts are provided at the bottom of the outer ring groove and are spaced from the first mounting groove. The second mounting hole passes through the limiting posts, and the second mounting substrate is in contact with the bottom of the outer ring groove.

[0021] The ion mounting assembly further includes a mounting base protruding on the bottom of the outer ring groove and spaced from the first mounting groove, and the limiting posts are provided on the mounting base.

[0022] The cover plate body further includes a first pressing post and a second pressing post. The first pressing post protrudes toward the first mounting substrate and is in contact with the first mounting substrate. The second pressing post protrudes toward the high-voltage assembly and is in contact with the high-voltage assembly.

[0023] An installation portion protrudes on a side of the cover body facing the filter screen. The filter screen is provided with an inner hole corresponding to the installation portion and is adapted to be sleeved on the installation portion.

[0024] The air outlet device further includes a rear net, which is snap-fitted to the end of the air duct and abuts against the side of the filter screen facing away from the cover body, and is adapted to limit the filter screen.

[0025] A number of limiting ribs protruding towards the filter screen are provided on the rear net, and the limiting ribs are distributed circumferentially and are arranged in contact with the outer edge of the filter screen.

[0026] The rear net further includes a number of first snap buttons, which are arranged on the outer side of the limiting ribs and are distributed circumferentially;

[0027] A number of second snap buttons are provided on the inner edge of the end of one side of the air duct, and the second snap buttons are distributed circumferentially and are arranged corresponding to the first snap buttons;

[0028] The first snap button has a limiting state in which it extends into the inner side of the air duct, rotates along the first rotation direction under the action of an external force, and is snap-fitted with the second snap button.

[0029] The air outlet device is an air circulation fan.

[0030] The technical solution of the present invention has the following advantages:

[0031] 1. The air outlet device provided by the present invention includes: an air duct, with an air passage provided inside, a frame body is provided in the air passage, and the frame body is connected to the inner wall of the air duct; a cover body, which is snap-fitted with the frame body, and an accommodation cavity communicating with the air passage is formed between the cover body and the frame body, and an ion generation component is arranged in the accommodation cavity; a filter screen, which is arranged adjacent to the frame body and is adapted to filter the gas flowing through the air passage.

[0032] By adding two components, an ion generation component and a filter screen, to the air passage in the air duct, they cooperate with each other during the flow of the gas in the air passage, respectively input and output sterilizing ions and filter dirt into the air passage, so as to achieve the function of sterilizing and filtering the gas. At the same time, by setting the cover body and the frame body that are snap-fitted, assembly can be achieved without connectors, reducing the assembly process, facilitating the installation of the ion generation component, improving production efficiency, and effectively overcoming the defects of the complex structure assembly, high production and maintenance costs of the existing technology of the fan with sterilization and air filtration functions.

[0033] 2. In the air outlet device provided by the present invention, at least one of the support members is provided with a first groove, the first groove communicates with the inner groove member and opens in the same direction as the inner groove member; the cover body further includes at least one pressing plate, which is correspondingly snap-fitted on the first groove and is snap-fitted with the first groove.

[0034] A first groove is provided on the support member, and a wire pressing plate is provided on the cover body. Through the snap connection of the first groove and the wire pressing plate, a closed cavity communicating with the accommodation cavity is formed, and this cavity can penetrate through the inner wall of the air duct. Power supply or control lines can be arranged therein, connected to an external controller or power supply component, and at least can supply power to the ion generation component in the accommodation cavity or control its opening and closing to ensure the normal operation of the ion generation component.

[0035] 3. For the air outlet device provided by the present invention, the ion installation assembly further includes an installation base, which protrudes from the bottom of the outer ring groove and is arranged at an interval from the first installation groove, and the limiting column is arranged on the installation base.

[0036] By providing the installation base, on the one hand, after the motor is installed in the motor groove, the motor will partially occupy the space in the inner groove member, and at the same time, circumferential vibration will occur during the working process. By providing the installation base, the axial distance between the high-voltage generator arranged on the installation base and the motor can be increased, avoiding contact between the high-voltage generator and the motor, and thus affecting the working stability of the high-voltage generator.

[0037] On the other hand, the high-voltage generator is connected to the bottom of the outer ring groove through the limiting column. By providing the installation base and increasing the axial distance between the high-voltage generator and the motor, on the premise of ensuring a safe interval between the two, part of the high-voltage generator can be protruded in the direction close to the motor groove, and part of the high-voltage generator is axially projected on the motor groove. In this way, the area of the outer ring groove occupied by the high-voltage generator can be reduced, and then the outer diameter of the outer ring groove can be reduced. Further, the radial wind-blocking area of the inner groove member and the cover body in the air passage can be reduced, improving the air passage performance in the air passage.

[0038] 4. For the air outlet device provided by the present invention, an installation part protrudes from the side of the cover body facing the filter screen, and the filter screen is provided with an inner hole corresponding to the installation part and is adapted to be sleeved on the installation part.

[0039] By providing the installation part on the cover body to install the filter screen, this setting facilitates the individual installation or disassembly of the cover body and the filter screen on the same side of the frame, simplifies the assembly or disassembly process, and improves the use experience of the air outlet device.

[0040] 5. For the air outlet device provided by the present invention, the air outlet device further includes a rear net, which is snap-connected to the end of the air duct and abuts against the side of the filter screen facing away from the cover body and is adapted to limit the filter screen.

[0041] By providing a rear net, it can be combined with the protruding mounting part on the cover body to clamp and limit the filter screen. On the premise of ensuring the stable installation of the filter screen, it is possible to avoid fixing the filter screen with connecting parts such as screws, reducing the installation cost of the filter screen. In addition, the detachable rear net, filter screen, and cover body are arranged on the same side of the frame body, facilitating sequential installation or disassembly, reducing the difficulty of disassembly and assembly, and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0043] Figure 1 Exploded schematic view of the structure of the air outlet device provided in the embodiment of the present invention;

[0044] Figure 2 is Figure 1 Schematic perspective view of the air outlet device shown;

[0045] Figure 3 is Figure 1 Schematic internal view of the air outlet device shown;

[0046] Figure 4 is Figure 3 Schematic internal view of the air outlet device in another cross-section shown;

[0047] Figure 5 is Figure 4 Schematic internal view of the air outlet device in another cross-section shown;

[0048] Figure 6 is Figure 1 Schematic internal view of the air duct and the frame body of the air outlet device shown;

[0049] Figure 7 is Figure 6 Enlarged schematic view of part A of the air duct and the frame body of the air outlet device shown;

[0050] Figure 8 is Figure 6 Schematic internal view of the air duct and the frame body of the air outlet device in another cross-section shown;

[0051] Figure 9 is Figure 8 Enlarged schematic view of part B of the air duct and the frame body of the air outlet device shown;

[0052] Figure 10 For Figure 1 The top view structural schematic diagram of the air duct and the frame of the air outlet device shown;

[0053] Figure 11 For Figure 10 The enlarged C - part structural schematic diagram of the air duct and the frame of the air outlet device shown;

[0054] Figure 12 For Figure 1 The three - dimensional structural schematic diagram of the electrode needle assembly of the air outlet device shown;

[0055] Figure 13 For Figure 12 The three - dimensional structural schematic diagram of the electrode needle assembly of the air outlet device shown from another angle;

[0056] Figure 14 For Figure 1 The three - dimensional structural schematic diagram of the high - voltage generator of the air outlet device shown;

[0057] Figure 15 For Figure 14 The three - dimensional structural schematic diagram of the high - voltage generator of the air outlet device shown from another angle;

[0058] Figure 16 For Figure 1 The three - dimensional structural schematic diagram of the cover of the air outlet device shown;

[0059] Figure 17 For Figure 16 The side - view structural schematic diagram of the cover of the air outlet device shown;

[0060] Figure 18 For Figure 16 The bottom - view structural schematic diagram of the cover of the air outlet device shown;

[0061] Figure 19 For Figure 1 The three - dimensional structural schematic diagram of the filter screen of the air outlet device shown;

[0062] Figure 20 For Figure 1 The three - dimensional structural schematic diagram of the rear net of the air outlet device shown;

[0063] Figure 21 For Figure 20 The enlarged D - part structural schematic diagram of the rear net of the air outlet device shown.

[0064] Explanation of reference numerals:

[0065] 1 - Air duct; 11 - Air passage; 12 - Second screw; 2 - Frame; 21 - Inner groove part; 211 - First engaging part; 212 - Motor slot; 213 - Outer ring slot; 22 - Support part; 23 - First groove body; 3 - Cover; 31 - Cover plate main body; 311 - Second engaging part; 312 - First pressing column; 313 - Second pressing column; 32 - Wiring board; 33 - Installation part; 4 - Accommodation cavity; 5 - Ion generation component; 51 - Needle electrode component; 511 - First mounting substrate; 512 - Needle electrode part; 513 - First mounting hole; 52 - High voltage generator; 521 - Second mounting substrate; 522 - High voltage component; 523 - Second mounting hole; 6 - Ion mounting component; 61 - First mounting groove; 611 - Mounting side column; 612 - Needle passing hole; 62 - Limit column; 63 - Mounting base; 7 - Filter screen; 71 - Inner hole; 8 - Rear net; 81 - Grid piece; 82 - Limit rib; 83 - First screw. Detailed implementation mode

[0066] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work shall fall within the protection scope of the present invention.

[0067] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is 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 of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0068] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "connection" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0069] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0070] Such as Figures 1 - 21As shown in the figure, this embodiment provides an air outlet device, including: an air duct 1, a cover 3 and a filter screen 7. In this embodiment, the air outlet device is an air circulator fan, and can also be an air conditioner, an air purifier, a humidifier, etc.

[0071] The air duct 1 is arranged in a straight tube shape, and an air passage 11 is arranged inside. A frame 2 is arranged in the air passage 11, and the frame 2 is connected to the inner wall of the air duct 1. In this embodiment, a fan and a wind blade connected to the output shaft of the fan are further arranged on the frame 2. The rotation of the wind blade drives the air flow to flow along the air passage 11. As a changeable implementation manner, the fan and the wind blade can be arranged outside the frame 2, or arranged outside the air duct 1 and communicated with the air duct 1.

[0072] The cover 3 and the frame 2 are snap-fitted and connected with each other in a mutually limiting manner, and a receiving cavity 4 communicating with the air passage 11 is formed between the two. An ion generating assembly 5 is arranged in the receiving cavity 4, which can output sterilizing ions into the air passage 11. Specifically, in this embodiment, the ion generating assembly 5 is a negative ion generating device;

[0073] The filter screen 7 is arranged adjacent to the frame 2 and is detachably arranged in the air passage 11. In this embodiment, the cover 3 is clamped between the filter screen 7 and the frame 2. The filter screen 7 is circularly arranged and has the same cross-sectional area as the air passage 11 at its corresponding position, and can completely filter the gas flowing through the air passage 11. As a changeable implementation manner, the filter screen 7 can also be arranged on the side of the frame 2 away from the cover 3.

[0074] By adding two elements, namely the ion generating assembly 5 and the filter screen 7, into the air passage 11 in the air duct 1, they cooperate with each other during the flow of the gas in the air passage 11, respectively inputting and outputting sterilizing ions and filtering dirt into the air passage 11, so as to achieve the functions of gas sterilization and filtration. At the same time, by setting the snap-fitted cover 3 and the frame 2, assembly can be realized without connectors, reducing the assembly process, facilitating the installation of the ion generating assembly 5, improving production efficiency, and effectively overcoming the defects in the prior art that the structure of a fan with sterilization and air filtration functions is complex in assembly, and high in production and maintenance costs.

[0075] The frame 2 includes an inner groove member 21 and a plurality of support members 22. The inner groove member 21 is arranged inside the air passage 11 and is spaced from the inner wall of the air duct 1. In this embodiment, the inner groove member 21 is in a disc shape and is coaxially arranged with the air passage 11. A plurality of first engaging members 211 are distributed at the opening edge position of the inner groove member 21. In addition, the support members 22 are in an arc-shaped rod shape and connect the inner groove member 21 and the inner wall of the air duct 1;

[0076] The cover body 3 includes a cover plate main body 31 in a disc shape. The cover plate main body 31 is arranged in the air passage 11. A number of second engaging members 311 are arranged on the cover plate main body 31 in the direction towards the inner groove member 21. The second engaging members 311 are arranged corresponding to the positions of the first engaging members 211 and are engaged and connected with the first engaging members 211. In this embodiment, both the first engaging members 211 and the second engaging members 311 are arranged in an inverted hook shape. As a changeable embodiment, the two can also be respectively a matching set of a clamping block and a buckle or a clamping groove and a buckle, etc.

[0077] In this embodiment, a total of four support members 22 are provided. A first groove 23 is arranged on one of the support members 22. The first groove 23 communicates with the inner groove member 21 and has the same opening direction as the inner groove member 21. Further, the first groove 23 penetrates through the inner wall of the air passage 11. As a changeable embodiment, the first groove 23 can be arranged on two or more support members 22.

[0078] In addition, the cover body 3 further includes a wire pressing plate 32. The wire pressing plate 32 is connected with the cover plate main body 31. In this embodiment, the two are integrally formed. The wire pressing plate 32 can be correspondingly buckled on the first groove 23. Its quantity and distribution position correspond to the first groove 23. A buckle is arranged on the wire pressing plate 32 and can be engaged and connected with the first groove 23.

[0079] The first groove 23 is arranged on the support member 22, and the wire pressing plate 32 is arranged on the cover body 3. Through the engagement connection between the first groove 23 and the wire pressing plate 32, a closed cavity communicating with the accommodation cavity 4 is formed, and this cavity can penetrate through the inner wall of the air cylinder 1. A power supply or control circuit can be arranged therein, which is connected with an external controller or a power supply component, and at least can supply power to the ion generation component 5 in the accommodation cavity 4 or control its opening and closing to ensure the normal operation of the ion generation component 5.

[0080] In this embodiment, the first engaging members 211 are evenly distributed along the outer edge of the inner groove member 21, and the second engaging members 311 are evenly distributed along the outer edge of the cover plate main body 31. Such an arrangement can effectively ensure the connection stability between the inner groove member 21 and the cover plate main body 31 in all directions.

[0081] The inner groove member 21 includes a motor groove 212 and an outer ring groove 213. A motor can be arranged in the motor groove 212. A shaft passing hole is arranged in the middle of the side of the motor groove 212 far away from the cover body 3, through which the motor output shaft can pass. Connecting holes for fixing the motor are arranged on the periphery of the shaft passing hole.

[0082] The outer ring groove 213 communicates with the motor groove 212 and has the same opening direction as the motor groove 212. The outer ring groove 213 is arranged on the outside of the motor groove 212. An ion installation assembly 6 is arranged on the side thereof facing the cover plate main body 31, which can be used to carry the ion generation component 5.

[0083] In this embodiment, the ion generating assembly 5 includes: a pole needle assembly 51 and a high-voltage generator 52.

[0084] The pole needle assembly 51 is specifically a negative pole needle assembly 51, which can release negative ions, and includes a first mounting substrate 511 arranged in a "T" shape and a pole needle member 512. The first mounting substrate 511 includes a first plate member and a second plate member vertically connected and arranged. A plurality of first mounting holes 513 are arranged on the first plate member, and the second plate member is provided with the pole needle member 512. The pole needle member 512 includes two negative pole needles, which can release negative ions at the end.

[0085] The high-voltage generator 52 includes a second mounting substrate 521 and a high-voltage component 522 arranged on the second mounting substrate 521. Second mounting holes 523 are arranged on both sides of the second mounting substrate 521. The high-voltage component 522 is connected to an external power supply or can also be an internal power supply. The pole needle member 512 can release sterilizing ions into the air passage 11 under the action of the high-voltage component 522. As a changeable implementation manner, the second mounting substrate 521 can be not provided, and auxiliary plates provided with second mounting holes 523 can be respectively arranged on both sides of the high-voltage component 522.

[0086] The ion mounting assembly 6 includes: a first mounting groove 61 and at least two limiting columns 62.

[0087] The first mounting groove 61 is arranged at the bottom of the outer ring groove 213 and is recessed along the direction away from the cover body 3, and can carry the pole needle assembly 51. The first mounting groove 61 includes a mounting side column 611 and two needle passing holes 612. The mounting side column 611 protrudes along the port of the first mounting groove 61 and can pass through the first mounting hole 513. The needle passing holes 612 are arranged at the bottom side of the first mounting groove 61 and are communicated with the air passage 11, and can allow the pole needle member 512 to pass through.

[0088] The two limiting columns 62 are arranged in parallel at the bottom of the outer ring groove 213 and are arranged at an interval from the first mounting groove 61. The second mounting hole 523 passes through the limiting column 62, and the second mounting substrate 521 is arranged in contact with the bottom of the outer ring groove 213. Such an arrangement can respectively limit the pole needle assembly 51 and the high-voltage generator 52 on the first mounting groove 61 and the two limiting columns 62. As a changeable implementation manner, a plurality of limiting columns 62 can be provided, some of the limiting columns 62 pass through the second mounting hole 523, and the other part abuts against the outer wall of the high-voltage generator 52.

[0089] The ion mounting assembly 6 further includes a mounting platform 63. The mounting platform 63 protrudes on the bottom of the outer ring groove 213 and is arranged at an interval from the bottom wall of the first mounting groove 61. The limiting columns 62 are arranged on the mounting platform 63.

[0090] An installation base 63 is provided. On the one hand, after the motor is installed in the motor slot 212, the motor will partially occupy the space in the inner slot member 21, and circumferential vibration will occur during operation. By providing the installation base 63, the axial distance between the high-voltage generator 52 provided on the installation base 63 and the motor can be increased, avoiding contact between the high-voltage generator 52 and the motor, and thus affecting the working stability of the high-voltage generator 52.

[0091] On the other hand, the high-voltage generator 52 is connected to the bottom of the outer ring slot 213 through the limit posts 62. By providing the installation base 63 and increasing the axial distance between the high-voltage generator 52 and the motor, on the premise of ensuring a safe interval between the two, part of the high-voltage generator 52 can be protrudingly provided in the direction close to the motor slot 212, and part of the high-voltage generator 52 is axially projected onto the motor slot 212. In this way, the area of the outer ring slot 213 occupied by the high-voltage generator 52 can be reduced, and then the outer diameter of the outer ring slot 213 can be reduced. Further, the radial wind-blocking area of the inner slot member 21 and the cover body 31 in the air passage 11 can be reduced, improving the air passage performance in the air passage 11.

[0092] As a variable embodiment, the installation base 63 may not be provided, and the two limit posts 62 are arranged in parallel on the bottom surface of the bottom of the outer ring slot 213, or are arranged in a bent shape on the side wall of the outer ring slot 213.

[0093] The cover body 31 further includes a first pressing post 312 and two second pressing posts 313. The first pressing post 312 protrudes towards the first mounting substrate 511 and abuts against the first mounting substrate 511. The second pressing post 313 protrudes towards the high-voltage component 522 and abuts against the high-voltage component 522. By providing the pressing post structure, the installation stability of the pole needle assembly 51 and the high-voltage generator 52 is effectively improved.

[0094] In this embodiment, the limit posts 62, the installation side posts 611, the first pressing post 312, and the second pressing post 313 are all arranged in a cross-column shape.

[0095] In addition, in this embodiment, a circular installation portion 33 protrudes from the side of the cover body 31 of the cover 3 facing the filter screen 7. The installation portion 33 is coaxially arranged with the cover body 31 and has an inner diameter smaller than that of the cover body 31. An inner hole 71 adapted to the installation portion 33 is provided at the center of the circular filter screen 7. The inner diameter of the inner hole 71 is equal to the outer diameter of the installation portion 33, or the two are in interference fit, and the filter screen 7 can be sleeved on the installation portion 33.

[0096] By providing the installation portion 33 on the cover 3 to install the filter screen 7, this setting facilitates the individual installation or disassembly of the cover 3 and the filter screen 7 on the same side of the frame 2, simplifies the assembly or disassembly process, and improves the use experience of the air outlet device.

[0097] The air outlet device further includes a rear net 8. In this embodiment, the rear net 8 is snap-fitted to the end of the air duct 1 and abuts against the side of the filter screen 7 facing away from the cover body 31, and is suitable for limiting the filter screen 7. By providing the rear net 8, the filter screen 7 can be clamped and limited in combination with the protruding mounting portion 33 on the cover body 3. On the premise of ensuring the stable installation of the filter screen 7, the use of connecting parts such as screws to fix the filter screen 7 can be avoided, reducing the installation cost of the filter screen 7. In addition, the detachable rear net 8, the filter screen 7 and the cover body 3 are arranged on the same side of the frame body 2, which is convenient for sequential installation or disassembly, reducing the difficulty of disassembly and assembly and improving the user experience.

[0098] In this embodiment, the rear net 8 includes an inner edge piece and an outer edge ring arranged concentrically. Between the two, a number of arc-shaped grid pieces 81 are arranged in a radially uniform manner. At the connection position between the grid piece and the outer edge ring, a limiting rib 82 protruding towards the filter screen 7 is provided. The limiting rib 82 is distributed circumferentially and abuts against the outer edge of the filter screen 7. Such a setting can evenly abut against the circular filter screen 7 to ensure its installation stability and uniformity.

[0099] The rear net 8 also includes a number of first snap buttons 83. The first snap buttons 83 are arranged on the outer edge ring outside the limiting rib 82, and each first snap button 83 is evenly distributed circumferentially; on the inner edge of the end of one side of the air duct 1, a number of second snap buttons 12 are provided. The second snap buttons 12 are also evenly distributed circumferentially, and their number and distribution positions correspond to those of the first snap buttons 83. In this embodiment, the first snap button 83 has a limiting state in which it extends into the inner side of the air duct 1 and rotates along the first rotation direction under the action of an external force and is snap-fitted with the second snap button 12, so that the rear net 8 and the air duct 1 can be rotationally snap-connected.

[0100] Specifically, in this embodiment, the first snap button 83 and the second snap button 12 are also inverted hook members, and the extending directions of the inverted hook members protrude along the respective snap-fitting rotation directions, and their respective inverted hook ends are spaced from the outer edge ring and the inner edge of the end of the air duct 1 respectively.

[0101] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made on the basis of the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims

1. An air outlet device, characterized in that, Comprising: A wind tube (1) with an air passage (11) provided inside. A frame body (2) is arranged in the air passage (11), and the frame body (2) is connected to the inner wall of the wind tube (1); A cover body (3) is snap - connected to the frame body (2). An accommodation cavity (4) communicating with the air passage (11) is formed between the cover body (3) and the frame body (2), and an ion generating assembly (5) is arranged in the accommodation cavity (4); A filter screen (7) is arranged adjacent to the frame body (2) and is adapted to filter the gas flowing through the air passage (11); The frame body (2) includes an inner groove member (21) and a plurality of support members (22). The inner groove member (21) is arranged inside the air passage (11), is spaced from the inner wall of the wind tube (1), and is provided with a plurality of first engaging members (211) distributed thereon. The support members (22) connect the inner groove member (21) and the inner wall of the wind tube (1), and the support members (22) are arranged in an arc - shaped rod shape; The cover body (3) includes a cover plate main body (31). The cover plate main body (31) is arranged in the air passage (11), and a plurality of second engaging members (311) are distributed in the direction towards the inner groove member (21). The second engaging members (311) are arranged corresponding to the positions of the first engaging members (211) and are snap - connected to the first engaging members (211).

2. The air outlet device according to claim 1, wherein At least one of the support members (22) is provided with a first groove (23), the first groove (23) communicates with the inner groove member (21) and has the same opening direction as the inner groove member (21); The cover body (3) further includes at least one pressing plate (32), which is correspondingly buckled on the first groove (23) and is snap - connected to the first groove (23).

3. The air outlet device according to claim 1, wherein A plurality of the first engaging members (211) are evenly distributed along the outer edge of the inner groove member (21), and a plurality of the second engaging members (311) are evenly distributed along the outer edge of the cover plate main body (31).

4. The air outlet device according to any one of claims 1-3, characterized in that, The inner groove member (21) includes: A motor groove (212); An outer ring groove (213) is arranged outside the motor groove (212). On the side thereof facing the cover plate main body (31), an ion mounting assembly (6) is provided, which is adapted to carry the ion generating assembly (5).

5. The air outlet device according to claim 4, characterized in that, The ion generating assembly (5) includes: A needle electrode assembly (51), including a first mounting substrate (511) and a needle electrode member (512). The first mounting substrate (511) includes a first plate member and a second plate member connected together. A plurality of first mounting holes (513) are arranged on the first plate member, and the needle electrode member (512) is arranged on the second plate member; A high-voltage generator (52), comprising a second mounting substrate (521) and a high-voltage component (522) disposed on the second mounting substrate (521). Second mounting holes (523) are provided on both sides of the second mounting substrate (521). The needle member (512) is adapted to release sterilizing ions into the air passage (11) under the action of the high-voltage component (522).

6. The air outlet device according to claim 5, characterized in that, The ion mounting assembly (6) includes: A first mounting groove (61) provided at the bottom of the outer ring groove (213) and adapted to carry the needle assembly (51). The first mounting groove (61) includes a mounting side post (611) and a needle passing hole (612). The mounting side post (611) protrudes along the port of the first mounting groove (61) and passes through the first mounting hole (513). The needle passing hole (612) is provided at the bottom side of the first mounting groove (61) and communicates with the air passage (11) and is adapted to allow the needle member (512) to pass through.

7. The air outlet device according to claim 6, characterized in that At least two limiting posts (62) are provided at the bottom of the outer ring groove (213), spaced from the first mounting groove (61). The second mounting hole (523) passes through the limiting posts (62), and the second mounting substrate (521) is in abutting contact with the bottom of the outer ring groove (213).

8. The air outlet device according to claim 7, characterized in that, The ion mounting assembly (6) further includes a mounting base (63) protruding from the bottom of the outer ring groove (213), spaced from the first mounting groove (61), and the limiting posts (62) are provided on the mounting base (63).

9. The air outlet device according to claim 8, characterized in that, The cover body (31) further includes a first pressing post (312) and a second pressing post (313). The first pressing post (312) protrudes towards the first mounting substrate (511) and abuts against the first mounting substrate (511). The second pressing post (313) protrudes towards the high-voltage component (522) and abuts against the high-voltage component (522).

10. The air outlet device according to claim 9, characterized in that, One side of the cover body (3) protruding towards the filter screen (7) is provided with a mounting portion (33). The filter screen (7) is provided with an inner hole (71) corresponding to the mounting portion (33) and is adapted to be sleeved on the mounting portion (33).

11. The air outlet device according to any one of claims 1 to 3, characterized in that, The air outlet device further includes a rear net (8). The rear net (8) is snap-connected to the end of the air duct (1) and abuts against the side of the filter screen (7) facing away from the cover body (31) and is adapted to limit the filter screen (7).

12. The air outlet device according to claim 11, wherein A plurality of limiting ribs (82) protruding towards the filter screen (7) are provided on the rear net (8). The limiting ribs (82) are circumferentially distributed and are in abutting contact with the outer edge of the filter screen (7).

13. The air outlet device according to claim 12, wherein The rear net (8) further includes a plurality of first snap buttons (83). The first snap buttons (83) are provided along the outside of the limiting ribs (82) and are circumferentially distributed; A plurality of second snap buttons (12) are provided on the inner edge of one end of the air duct (1). The second snap buttons (12) are circumferentially distributed and are provided corresponding to the first snap buttons (83); The first turnbuckle (83) has a limiting state in which it extends inside the air duct (1), rotates along a first rotation direction under the action of an external force, and is engaged and connected with the second turnbuckle (12).

14. The air outlet device according to claim 1, characterized in that The air outlet device is an air circulator fan.

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