Portable desktop air purifier

Abstract

The utility model discloses a portable desktop air purifier, and relates to the technical field of limited space air pollution prevention and control. The device comprises an outer shell and an inner shell, an air outlet is formed in the upper portion of the inner shell, an air inlet is formed in the lower portion of the inner shell, an airflow channel is formed between the air inlet and the air outlet, one side of the air inlet of the inner shell is connected with an air filter, and an exhaust fan is arranged on one side, close to the air outlet, in the airflow channel; a plurality of mounting parts are formed between the outer wall of the inner shell and the outer shell, the mounting parts are different in shape and size so as to be adaptive to mounting of different electronic components, and at least one mounting part is communicated with the airflow channel. According to the technical scheme, the portable desktop air purifier has the advantage that the air outlet is enlarged on the premise that normal use of electronic elements is not affected.

Description

Technical Field

[0001] This utility model relates to the field of air pollution prevention and control technology in confined spaces, specifically to a portable desktop air purifier. Background Technology

[0002] After a period of use, air purifiers usually need to have their gas filters replaced to ensure the air purification effect. However, the air vent is often overlooked. The grille and fan at the air vent are prone to accumulating dust and are not easy to clean. This results in the air coming out of the vent still being polluted even if the air is completely purified.

[0003] Current air purifiers not only have a fan in the center of the air outlet, but also other large electronic components that occupy the space, such as control circuit boards, negative ion generators, and humidifiers, resulting in a smaller and narrower air outlet. Firstly, a smaller air outlet increases airflow speed, leading to greater noise and easier dust accumulation; the narrow space also makes cleaning more difficult. Secondly, a smaller air outlet also causes uneven airflow, significantly reducing purification effectiveness. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of this utility model is to address the defects and shortcomings of the existing technology by providing a portable desktop air purifier that places electronic components in the outer wall of the inner shell outside the airflow channel, thereby increasing the air outlet without affecting the normal use of the electronic components.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a portable desktop air purifier, comprising an inner shell and an outer shell fitted over the inner shell, wherein the inner shell has an air inlet and an air outlet, and an airflow channel is formed between the air inlet and the air outlet; a gas filter is connected to one side of the air inlet of the inner shell, and a fan assembly is disposed in the airflow channel near the air outlet; multiple mounting parts are formed between the inner shell and the outer shell, each mounting part having a different shape to accommodate different electronic components, one of the mounting parts being fitted with a control circuit board coupled to other electronic components; another mounting part communicating with the airflow channel, so that the electronic components mounted thereon can interact with the airflow in the airflow channel.

[0006] Preferably, the outer casing has a flat side surface with multiple exposed holes. After the electronic components are installed in the mounting part, the electronic components are fitted with the inner wall of the outer casing with a clearance, or the exposed holes allow the user to interact with external electronic devices.

[0007] Preferably, the mounting portion includes a first mounting portion, a second mounting portion, a third mounting portion and a fourth mounting portion, and the four mounting portions are respectively recessed around the outer wall of the inner shell.

[0008] Preferably, the electronic components further include a power supply unit, a Schumann wave generator, and a negative ion generator coupled to the control circuit board; the control circuit board is disposed on the first mounting part, the negative ion generator is disposed on the second mounting part, the power supply unit is disposed on the third mounting part, and the Schumann wave generator is disposed on the fourth mounting part.

[0009] Preferably, the negative ion generating device includes a negative ion generator and a negative ion releasing head. The negative ion generator is used to generate negative ions. A mounting groove communicating with the airflow channel is also provided on one side of the second mounting part. The mounting groove is for mounting the negative ion releasing head. The negative ion releasing head sends the negative ions generated by the negative ion generator to the airflow channel through the mounting groove.

[0010] Preferably, the fan assembly includes a mounting base with multiple mounting plates extending from the side of the mounting base and connecting to the inner wall of the airflow channel. A motor and fan blades connected to the output shaft of the motor are mounted on the mounting base. A PCB board is also coupled to the motor and is also coupled to the control circuit board.

[0011] Preferably, one of the mounting plates has a wiring groove, which connects to the mounting part where the control circuit board is located, so that the PCB board and the control circuit board can be coupled by wires.

[0012] Preferably, a plurality of ultraviolet lamps are coupled to the end of the PCB board away from the motor.

[0013] Preferably, the air outlet is covered with an air outlet grille, which includes a top cover and a frame. The top cover and the frame are connected by multiple grille plates. The air outlet grille is used to organize the airflow blown out by the fan assembly.

[0014] Preferably, a disassembly piece is provided between the frame and the inner wall of the air outlet for the entire air outlet grille to be disassembled and reassembled, so that the user can clean the airflow channel and fan assembly.

[0015] The beneficial effects of this utility model after adopting the above technical solution are as follows: An air inlet and an air outlet are opened on the inner shell, forming an airflow channel between them. A gas filter is connected to one side of the air inlet of the inner shell. A fan assembly is installed on the side of the airflow channel near the air outlet. Multiple mounting parts are formed between the inner shell and the outer shell, each with a different shape to accommodate different electronic components. One mounting part is equipped with a control circuit board coupled to other electronic components, and another mounting part is connected to the airflow channel, allowing the electronic components mounted thereon to interact with the airflow in the airflow channel. This allows the electronic components to be placed between the inner and outer shells outside the airflow channel, increasing the air outlet's advantage without affecting the normal use of the electronic components. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 It corresponds Figure 1 Exploded view;

[0019] Figure 3 It corresponds Figure 1 Exploded view of part of the structure;

[0020] Figure 4 This is a bottom view of the inner shell structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the bottom shell and gas filter element of this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. Outer casing; 11. Display screen; 111. Exposed screen hole; 12. Button; 121. Exposed button hole; 13. Control circuit board; 14. Power supply unit; 2. Air outlet grille; 21. Frame; 22. Grille plate; 23. Top cover; 24. Slot; 241. Locking block; 3. Hand pull ring; 4. Bottom shell; 41. Connecting plate; 42. Positioning bracket; 5. Inner shell; 51. First mounting part; 52. Second mounting part 53. Third mounting section; 54. Fourth mounting section; 55. Air inlet; 6. Fan assembly; 61. Mounting base; 62. Mounting plate; 63. Cable tray; 64. PCB board; 65. Ultraviolet lamp; 66. Fan blade; 67. Motor; 7. Negative ion generator; 71. Negative ion generator; 72. Negative ion release head; 721. Connecting port; 722. Mounting slot; 8. Schumann wave generator; 9. Gas filter. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings.

[0024] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive element, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0025] This embodiment relates to a portable desktop air purifier, such as... Figure 1 , Figure 2 and Figure 5 As shown, this portable desktop air purifier includes an inner shell 5 and an outer shell 1. The outer shell 1 is shaped to fit the inner shell 5 and is fitted onto it. An air inlet 55 and an air outlet are provided on the inner shell 5. Specifically, the air inlet 55 is located at the lower end of the inner shell 5, and the air outlet is located at the upper end. A gas filter 9 is connected to one side of the air inlet 55, allowing the gas drawn into the air inlet 55 to undergo primary filtration through the gas filter 9. Specifically, the gas filter 9 includes an annular activated carbon ring and a HEPA filter covering the surface of the activated carbon ring. A bottom shell 4 is also provided outside the gas filter 9. The upper part of the bottom shell 4 is assembled with the lower part of the inner shell 5 via a connecting plate 41. A positioning bracket 42 is provided on the inner bottom surface of the bottom shell 4, allowing the inner ring of the activated carbon ring to be inserted. Once inserted, the activated carbon ring is fixed in place, and the opening at the bottom of the activated carbon ring is closed by the inner bottom surface of the bottom shell 4, so airflow can only enter from the side of the activated carbon ring. Furthermore, the bottom shell 4 is designed in a grid pattern, which not only protects the activated carbon ring but also does not affect the airflow into the activated carbon ring.

[0026] It should be noted that the connecting plate 41 is provided with a hole for the air inlet 55 to be exposed, and the connecting plate 41 is also provided with multiple screw holes. The bottom shell 4 and the inner shell 5 are also provided with threaded holes corresponding to the screw holes on the connecting plate 41, so that screws can pass through the screw holes and reach the threaded holes to complete the fixing of the bottom shell 4 and the inner shell 5 by the connecting plate 41.

[0027] It should be added that an airflow channel is formed between the air outlet and the air inlet 55 on the inner shell 5, and a fan assembly 6 is provided on the side of the airflow channel near the air outlet. The fan assembly 6 can draw airflow from outside the gas filter 9 into the air inlet 55 and blow it out from the air outlet through the airflow channel.

[0028] Preferably, a plurality of mounting portions are formed between the inner shell 5 and the outer shell 1. These mounting portions can be disposed on the outer surface of the inner shell 5 or on the inner surface of the outer shell 1. Each mounting portion has a different shape and size to accommodate different electronic components. One mounting portion is equipped with a control circuit board 13, which couples to other electronic components to control them. Another mounting portion communicates with an airflow channel, allowing the electronic components mounted on this mounting portion to interact with the gas within the airflow channel.

[0029] like Figure 3 As shown, the four sides of the outer casing 1 are flat, with adjacent sides transitioning into an arc shape; that is, all four sides of the outer casing 1 have rounded corners. Multiple exposed holes are also provided on the sides of the outer casing 1. Therefore, after electronic components are installed in the mounting section, the outer casing 1 can allow the electronic components to be exposed or concealed, depending on the function of the electronic components themselves. When exposed, the electronic components can interact with the user or external electronic devices. When concealed, the electronic components and the inner wall of the outer casing 1 are fitted with a clearance to prevent the sides of the outer casing 1 from being flat and protruding, maintaining the aesthetic appearance of the outer casing 1.

[0030] Preferably, the mounting section includes a first mounting section 51, a second mounting section 52, a third mounting section 53, and a fourth mounting section 54. The four mounting sections are recessed around the outer wall of the inner shell 5, and each mounting section holds different electronic components. In contrast to the prior art, most electronic components are dispersed around the outer wall of the inner shell 5, and only the fan assembly 6 is provided in the airflow channel. Therefore, the advantage of increasing the air outlet can be achieved without affecting the normal use of electronic components, thereby reducing the airflow velocity.

[0031] Preferably, the electronic components further include a power supply unit 14, a Schumann wave generator 8, and a negative ion generator 71. The control circuit board 13 is disposed on the first mounting part 51, and the power supply unit 14 is disposed on the third mounting part 53. The power supply unit 14 is coupled to the control circuit board 13. The power supply unit 14 includes a power supply board and a power supply interface. The power supply interface is used to connect to an external power source, and the power supply board is used to transmit current to the control circuit board 13 to meet the power supply needs of other electronic components. Alternatively, in other embodiments, the power supply unit 14 is a power supply battery and a charging interface. The power supply battery is charged by connecting to an external power source through the charging interface, and then the power supply battery is coupled to the control circuit board 13 to meet the power supply needs of other electronic components.

[0032] Preferably, a display screen 11 and multiple buttons 12 are coupled to the control circuit board 13. Each button 12 can send different control information to the control circuit board 13. The control circuit board 13 controls different electronic components by receiving different control information. For example, it controls the power supply unit 14 to turn on and off, thereby turning the entire portable desktop air purifier on and off. For example, it controls the Schumann wave generator 8 and the negative ion generator 71 to turn the sleep aid mode and the negative ion sterilization mode on and off.

[0033] It should be added that the display screen 11 can be used to display the current on / off status of each electronic component. The exposed holes on the housing 1 include the screen exposure hole 111, the button 12 exposure hole, and the power supply unit 14 exposure hole. The screen exposure hole 111 allows the screen to be exposed so that the user can observe the information displayed on the screen. The button 12 exposure hole allows the user to press the button 12. The power supply unit 14 exposure hole allows the user to connect the power supply unit 14 through an external power source.

[0034] As needed, the Schumann wave generator 8 is mounted on the fourth mounting part 54. The Schumann wave generator 8 is coupled to the control circuit board 13. The Schumann wave generator 8 is used to send low-frequency electromagnetic waves of 7.83Hz into the environment, which can make the brain more likely to enter a relaxed and sleepy state and improve the quality of sleep.

[0035] Preferably, the negative ion generator 7 is disposed on the second mounting part 52. The negative ion generator 7 includes a negative ion generator 71 and a negative ion release head 72. The negative ion generator 71 is used to generate negative ions. The second mounting part 52 is also provided with a mounting groove 722 communicating with the airflow channel on one side. The mounting groove 722 is used to install the negative ion release head 72. A connecting port 721 is provided on the side of the mounting groove 722 near the airflow channel. The negative ion release head 72 sends the negative ions generated by the negative ion generator 71 to the airflow channel through the connecting port 721. The negative ions released into the airflow channel can adsorb and remove dust, bacteria, viruses and harmful gases in the airflow.

[0036] like Figure 4As shown, the fan assembly 6 includes a mounting base 61 with a circular bottom. A mounting shaft extends upward from the center of the mounting base 61, and multiple mounting plates 62 extend from the side of the bottom of the mounting base 61. The end of the mounting plate 62 away from the mounting base 61 is connected to the inner wall of the airflow channel. A motor 67 and a fan blade 66 connected to the output shaft of the motor 67 are mounted on the mounting shaft, thereby enabling the motor 67 to rotate on the mounting base 61. Specifically, the motor 67 is an external rotor brushless motor 67. The stator of the brushless motor 67 is mounted on the mounting shaft, and the rotor, i.e., the magnetic ring, is mounted on the fan blade 66, thereby enabling the fan blade 66 to rotate relative to the mounting base 61. The rotation of the fan blade 66 can drive the airflow to blow out towards the air outlet in the airflow channel.

[0037] Preferably, a PCB board 64 is also provided on the side of the bottom of the motor 67 near the mounting base 61. The PCB board 64 is coupled to the control circuit board 13 and also to the motor 67 to control the speed of the motor 67. A wiring groove 63 is provided on one of the mounting plates 62, which connects to the first mounting part 51 where the control circuit board 13 is located, so that the PCB board 64 and the control circuit board 13 can be coupled through wires.

[0038] It should be added that multiple ultraviolet lamps 65 are coupled to one end of the PCB board 64 away from the motor 67. The ultraviolet lamps 65 can disinfect the gas in the airflow channel and improve the purification capacity of this purifier.

[0039] Preferably, an air outlet grille 2 is provided on the air outlet. The air outlet grille 2 can organize the airflow blown out from the fan assembly 6. Specifically, the air outlet grille 2 includes a top cover 23 and a frame 21. The top cover 23 is circular and the frame 21 is annular. The edge of the top cover 23 and the inner edge of the frame 21 are connected by multiple grille pieces 22.

[0040] It should be added that a disassembly component is provided between the frame 21 and the inner wall of the air outlet. The disassembly component allows the air outlet grille 2 to be removed from the inner wall of the air outlet, thereby facilitating the user to clean the airflow passage and fan assembly 6. Specifically, one part of the disassembly component is a slot 24 formed on the outer wall of the frame 21, and the other part is a block 241 set on the inner wall of the air outlet. The air outlet grille 2 can be disassembled relative to the air outlet by the snap-fit ​​assembly of the block 241 and the slot 24.

[0041] The above is only used to illustrate the technical solution of this utility model and not to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A portable desktop air purifier, characterized in that, It includes an inner shell and an outer shell fitted over the inner shell. The inner shell has an air inlet and an air outlet, and an airflow channel is formed between the air inlet and the air outlet. A gas filter is connected to one side of the air inlet of the inner shell, and a fan assembly is provided in the airflow channel near the air outlet. Multiple mounting portions are formed between the inner shell and the outer shell. Each mounting portion has a different shape to accommodate different electronic components. One of the mounting portions is equipped with a control circuit board coupled to other electronic components. Another mounting section is connected to the airflow channel so that the electronic components mounted thereon can interact with the airflow within the airflow channel.

2. The portable desktop air purifier according to claim 1, characterized in that, The outer casing has a flat side surface with multiple exposed holes. After the electronic components are installed in the mounting part, the electronic components are either fitted with the inner wall of the outer casing with a clearance or allow the user to interact with external electronic devices through the exposed holes.

3. The portable desktop air purifier according to claim 1, characterized in that, The mounting portion includes a first mounting portion, a second mounting portion, a third mounting portion, and a fourth mounting portion, which are recessed around the outer wall of the inner shell.

4. The portable desktop air purifier according to claim 3, characterized in that, The electronic components also include a power supply unit, a Schumann wave generator, and a negative ion generator coupled to the control circuit board; The control circuit board is mounted on the first mounting part, the negative ion generator is mounted on the second mounting part, the power supply part is mounted on the third mounting part, and the Schumann wave generator is mounted on the fourth mounting part.

5. The portable desktop air purifier according to claim 4, characterized in that, The negative ion generating device includes a negative ion generator and a negative ion releasing head, wherein the negative ion generator is used to generate negative ions; The second mounting part is also provided with a mounting groove on one side that communicates with the airflow channel. The mounting groove is for the negative ion release head to be installed. The negative ion release head sends the negative ions generated by the negative ion generator to the airflow channel through the mounting groove.

6. The portable desktop air purifier according to claim 1, characterized in that, The fan assembly includes a mounting base with multiple mounting plates extending from its side, which are connected to the inner wall of the airflow channel. A motor and fan blades connected to the output shaft of the motor are mounted on the mounting base. A PCB board is also coupled to the motor and is also coupled to the control circuit board.

7. The portable desktop air purifier according to claim 6, characterized in that, One of the mounting plates has a wiring groove, which connects to the mounting part where the control circuit board is located, so that the PCB board and the control circuit board can be coupled through wires.

8. The portable desktop air purifier according to claim 6, characterized in that, Multiple ultraviolet lamps are coupled to one end of the PCB board away from the motor.

9. The portable desktop air purifier according to claim 1, characterized in that, The air outlet is covered with an air outlet grille, which includes a top cover and a frame. The top cover and the frame are connected by multiple grille plates. The air outlet grille is used to organize the airflow blown out by the fan assembly.

10. The portable desktop air purifier according to claim 9, characterized in that, A disassembly piece is provided between the frame and the inner wall of the air outlet for assembling and disassembling the entire air outlet grille. This allows users to clean the airflow channels and fan components.

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