Mini anion air purifier
By designing the air duct, fan, negative ion generating module, and filter components of the mini negative ion air purifier, the problems of low purification efficiency and small coverage of mini air purifiers are solved, achieving efficient purification of air in small spaces and simplifying equipment maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI LUOKE CENT CONTROLLED ENERGY SAVING TECH CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-05-19
AI Technical Summary
Existing mini air purifiers suffer from low purification efficiency and frequent replacement of consumables, or have a small negative ion coverage range that is insufficient to meet the purification needs of small spaces.
A mini negative ion air purifier was designed. It guides air through the air channel inside the shell, and combines a fan, a negative ion generating module and a filter component to achieve air purification and circulation. It uses carbon fiber bundle electrodes and a ring grounding electrode to form an electric field to adsorb particulate matter. The filter component is easy to install and remove to improve purification efficiency.
It improves air purification efficiency in small spaces, increases the compactness and convenience of the equipment, enhances the contact area between negative ions and air, improves purification effect, and simplifies the replacement process of consumables.
Smart Images

Figure CN224261902U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air purifier technology, specifically a mini negative ion air purifier. Background Technology
[0002] Many existing mini air purifiers suffer from the contradiction of "small size, weak purification": traditional filter-type mini purifiers have low purification efficiency and require frequent replacement of consumables due to the limited size of the filter; some mini negative ion purifiers do not have consumables, but the electrode layout is unreasonable and the negative ion coverage area is small, making it difficult to meet the purification needs of small spaces (such as desktops and car passenger seats). Utility Model Content
[0003] The purpose of this invention is to provide a mini negative ion air purifier to solve the problems mentioned in the background art.
[0004] The technical solution of this utility model is: a mini negative ion air purifier, including a shell, an air guide channel is provided inside the shell, a top plate is provided on the top of the shell, an air guide port is provided between the bottom edge of the top plate and the inner edge of the top of the shell, a negative ion generating module is installed at the top of the air guide channel, a fan is provided below the negative ion generating module, and a filter assembly connected to the air guide channel is provided at the bottom of the shell.
[0005] The aforementioned components achieve the following effect: air is guided and transported through the air duct within the housing. The fan draws outside air through the filter assembly at the bottom of the housing into the air duct. As the air flows through the negative ion generating module within the air duct, it is purified. The purified air is then discharged through the air vent between the bottom edge of the top plate and the inner edge of the top of the housing. The coordinated operation of these technical features achieves the air purification and circulation purpose of the mini negative ion air purifier, increasing the device's compactness and improving air purification efficiency in small spaces.
[0006] Preferably, the negative ion generating module includes a support frame installed in the air guiding channel, an annular grounding electrode and a carbon fiber bundle electrode are installed on the support frame, the carbon fiber bundle electrode is connected to a high voltage generator, and multiple carbon fiber bundles are arranged radially on the carbon fiber bundle electrode.
[0007] The aforementioned components achieve the following effect: the support frame in the negative ion generating module provides fixed support for the annular grounding electrode and the carbon fiber bundle electrode; the high-voltage generator supplies power to the carbon fiber bundle electrode, causing the radially distributed carbon fiber bundles on the electrode to release negative ions. These ions, in conjunction with the annular grounding electrode, form an electric field, under which particulate matter in the air is adsorbed. The synergistic operation of these technical features achieves the goal of efficiently generating negative ions and purifying the air, increasing the contact area between negative ions and the air, and improving the air purification effect.
[0008] Preferably, the filter assembly includes a base plate, a filter screen is provided at the center of the base plate, and a connecting ring is provided at the top of the base plate and sleeved on the bottom end of the air guide channel.
[0009] The aforementioned components achieve the following effect: the filter screen is fixed in place by the base plate of the filter assembly, and the connecting ring is fitted at the bottom of the air guide channel to connect the filter assembly and the air guide channel. External air enters the air guide channel after being filtered by the filter screen at the center of the base plate. The coordinated operation of these technical features achieves the purpose of preliminary filtration of the air entering the air guide channel, increasing the cleanliness of the air entering the equipment and improving the purification efficiency of the subsequent negative ion generating module.
[0010] Preferably, a magnetic block is embedded at the top corner of the base plate, and a stop ring that attracts the magnetic block is provided inside the bottom end of the housing.
[0011] The aforementioned components achieve the following effect: the magnetic block at the top corner of the base plate of the filter assembly attracts the retaining ring inside the bottom of the housing, enabling a detachable connection between the filter assembly and the housing. The working cooperation between the magnetic block and the retaining ring facilitates easy assembly and disassembly of the filter assembly, increases the convenience of cleaning and replacing the filter assembly, and improves the efficiency of equipment maintenance.
[0012] Preferably, a power interface for power supply connection is provided on the outer side of the housing.
[0013] The aforementioned components achieve the following effect: by connecting to an external power source through the power interface on the outside of the housing, power is supplied to components such as the negative ion generating module and the fan inside the device.
[0014] This utility model provides a mini negative ion air purifier with the following improvements and advantages compared with the prior art:
[0015] This invention guides and delivers air through an internal air duct. A fan draws outside air through a filter at the bottom of the casing into the duct. As the air flows through the negative ion generator, it is purified. The purified air is then discharged through an air vent between the bottom edge of the top plate and the inner edge of the top of the casing. The coordinated operation of these technical features achieves the air purification and circulation goals of this mini negative ion air purifier, increasing the device's compactness and improving air purification efficiency in small spaces. Attached Figure Description
[0016] The present invention will be further explained below with reference to the accompanying drawings and embodiments:
[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0018] Figure 2 This is a cross-sectional three-dimensional structural diagram of the present invention.
[0019] Explanation of reference numerals in the attached figures:
[0020] 1. Housing; 2. Top plate; 3. Power interface; 4. Air duct; 5. Negative ion generating module; 51. Support frame; 52. Carbon fiber bundle electrode; 53. Ring grounding electrode; 6. Fan; 7. Stop ring; 8. Filter assembly; 81. Base plate; 82. Filter screen; 83. Connecting ring; 84. Magnetic block. Detailed Implementation
[0021] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.
[0022] This utility model provides a mini negative ion air purifier through improvement. The technical solution of this utility model is as follows:
[0023] In embodiments of this utility model, such as Figures 1-2 As shown, a mini negative ion air purifier includes a housing 1, an air guide channel 4 inside the housing 1, a top plate 2 on the top of the housing 1, an air guide vent between the bottom edge of the top plate 2 and the inner edge of the top of the housing 1, and a negative ion generating module 5 installed at the top of the air guide channel 4. The negative ion generating module 5 includes a support frame 51 installed inside the air guide channel 4, a ring-shaped grounding electrode 53 and a carbon fiber bundle electrode 52 installed on the support frame 51, the carbon fiber bundle electrode 52 being connected to a high-voltage generator, and multiple radially distributed carbon fiber bundles on the carbon fiber bundle electrode 52. The support frame 51 provides fixed support for the annular grounding electrode 53 and the carbon fiber bundle electrode 52. The high-voltage generator supplies power to the carbon fiber bundle electrode 52, causing the radially distributed carbon fiber bundles on the carbon fiber bundle electrode 52 to release negative ions. These ions, in conjunction with the annular grounding electrode 53, form an electric field. Particulate matter in the air is adsorbed by the negative ions under the action of the electric field. A fan 6 is installed below the negative ion generating module 5. When the fan 6 operates, it causes external air to enter the air guide channel 4 through the filter assembly 8 at the bottom of the housing 1. The air is purified as it flows through the negative ion generating module 5 in the air guide channel 4. The filter assembly 8, which is connected to the air guide channel 4, is installed at the bottom of the housing 1.
[0024] In an embodiment of this utility model, the filter assembly 8 includes a base plate 81, a filter screen 82 is provided at the center of the base plate 81, and a connecting ring 83 is provided at the top of the base plate 81 and sleeved at the bottom end of the air guide channel 4. The filter assembly 8 is connected to the air guide channel 4 by installing and fixing the filter screen 82 through the base plate 81 in the filter assembly 8 and by the connecting ring 83 sleeved at the bottom end of the air guide channel 4. External air enters the air guide channel 4 after being filtered by the filter screen 82 at the center of the base plate 81. A magnetic block 84 is embedded at the top corner of the base plate 81, and a stop ring 7 is provided inside the bottom end of the housing 1 to attract the magnetic block 84. The filter assembly 8 and the housing 1 are detachably connected by mutual attraction between the magnetic block 84 at the top corner of the base plate 81 in the filter assembly 8 and the stop ring 7 inside the bottom end of the housing 1.
[0025] The working principle of the mini negative ion air purifier provided by this utility model is as follows: the air is transported and guided through the air guide channel 4 inside the shell 1. The fan 6 works to make the outside air enter the air guide channel 4 through the filter assembly 8 at the bottom of the shell 1. The air enters the air guide channel 4 after being filtered by the filter screen 82 at the center of the bottom plate 81. The ring grounding electrode 53 and the carbon fiber bundle electrode 52 are fixedly supported by the support frame 51 in the negative ion generating module 5. The high voltage generator supplies power to the carbon fiber bundle electrode 52, causing the carbon fiber bundles distributed radially on the carbon fiber bundle electrode 52 to release negative ions. The negative ions are formed in conjunction with the ring grounding electrode 53. The particulate matter in the air is adsorbed by the negative ions under the action of the electric field. The purified air is discharged through the air guide port between the bottom edge of the top plate 2 and the inner edge of the top of the shell 1.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A mini negative ion air purifier, comprising a housing (1), characterized in that: An air guide channel (4) is provided inside the housing (1). A top plate (2) is provided on the top of the housing (1). An air guide port is provided between the bottom edge of the top plate (2) and the inner edge of the top of the housing (1). A negative ion generating module (5) is installed at the top of the air guide channel (4). A fan (6) is provided below the negative ion generating module (5). A filter assembly (8) connected to the air guide channel (4) is provided at the bottom of the housing (1).
2. The mini negative ion air purifier according to claim 1, characterized in that: The negative ion generating module (5) includes a support frame (51) installed in the air guiding channel (4). The support frame (51) is equipped with an annular grounding electrode (53) and a carbon fiber bundle electrode (52). The carbon fiber bundle electrode (52) is connected to a high voltage generator. The carbon fiber bundle electrode (52) is provided with multiple carbon fiber bundles arranged radially.
3. A mini negative ion air purifier according to claim 1, characterized in that: The filter assembly (8) includes a base plate (81), a filter screen (82) is provided at the center of the base plate (81), and a connecting ring (83) is provided on the top of the base plate (81) and sleeved on the bottom end of the air guide channel (4).
4. A mini negative ion air purifier according to claim 3, characterized in that: A magnetic block (84) is embedded at the top corner of the base plate (81), and a stop ring (7) that attracts the magnetic block (84) is provided inside the bottom end of the housing (1).
5. A mini negative ion air purifier according to claim 1, characterized in that: The outer side of the housing (1) is provided with a power interface (3) for power supply connection.