Desktop type air purification device with smell sensing function

Abstract

The utility model provides a desktop type air purification device with a smell sensing function, which is characterized by comprising a machine shell, a top cover and a base, the top cover and the base are respectively arranged at an upper end opening and a lower end opening of the machine shell, an air blowing mechanism is arranged in the upper end opening of the machine shell, and a filter element is arranged in the lower end opening of the machine shell. An air inlet hole opposite to the position of the filter element is formed in the outer wall of the shell; the filter element is cylindrical, and a central channel of the filter element is opposite to an air inlet of the air blowing mechanism; a containing groove used for containing a control component is formed in the middle of the top cover, the control component comprises a control circuit board and a smell sensor, an air outlet grid is arranged on the peripheral side of the containing groove to achieve annular air outlet, and an air hole communicated to an air outlet of the air blowing mechanism is formed in the containing groove. The air purifier is compact in internal structure and capable of meeting the requirement for purifying air on a table, the smell sensor is arranged, air quality data can be fed back, the rotating speed of the motor is adjusted accordingly, the air purification efficiency is improved, and product power consumption and noise are reduced.

Description

Technical Field

[0001] This utility model belongs to the field of air purification technology, specifically relating to a desktop air purification device with odor sensing function. Background Technology

[0002] In daily life, we inevitably encounter various odors, such as smoke and food smells. Ordinary desktop air purifiers can only passively absorb odors, and the purification process is mechanical. They do not automatically adjust according to the current air conditions in the space, which often takes a long time to eliminate odors. When the air quality is good, ordinary desktop air purifiers still run at full power, which not only wastes electricity but also cannot further reduce the noise of the impeller, thus failing to improve the user experience. Utility Model Content

[0003] This utility model proposes a desktop air purifier with odor sensing function, the purpose of which is to detect the concentration of odor in the air in real time and adjust the motor speed accordingly. The specific technical content is as follows:

[0004] A desktop air purifier with odor sensing function includes a housing, a top cover and a base respectively located at the upper and lower openings of the housing. A blower mechanism is installed through the upper opening of the housing, and a filter element is installed through the lower opening of the housing. The outer wall of the housing has an air inlet corresponding to the position of the filter element. The filter element is cylindrical, and its central channel is directly opposite the air inlet of the blower mechanism. The top cover has a receiving slot in the middle for placing control components. The control components include a control circuit board and an odor sensor. An air outlet grille is provided around the receiving slot to achieve circumferential air outlet. The receiving slot has an air hole communicating with the air outlet of the blower mechanism.

[0005] In one or more embodiments of the present invention, the receiving groove is provided with a support plate for fixing the control circuit board, the support plate covers the opening of the receiving groove and has an operation panel on its top.

[0006] In one or more embodiments of the present invention, a plurality of support frames are provided around the inner wall of the receiving groove, and a plurality of support columns are provided at the bottom of the receiving groove. The edge of the support plate rests on the support frame and is then connected and fixed to the support column by screws.

[0007] In one or more embodiments of the present invention, the periphery of the control circuit board is provided with a breathing light ring composed of multiple colorful LED beads, and a light-transmitting strip is formed on the support plate opposite to the breathing light ring to present the light effect of the breathing light ring.

[0008] In one or more embodiments of the present invention, the inner wall of the housing is provided with a plurality of support brackets, and the lower part of the blower mechanism is provided with an isolation bracket for assembly and connection with the support brackets. The isolation bracket fits against the inner wall of the housing to divide the inner cavity of the housing vertically.

[0009] In one or more embodiments of the present invention, the blower mechanism includes a motor, a motor housing, and a fan wheel. The fan wheel is installed below the motor housing and faces the filter element. Multiple guide vanes are provided on the outer side of the motor housing. The motor housing has an air duct that extends to the fan wheel. The air duct is opposite to the air holes on the receiving groove.

[0010] In one or more embodiments of the present invention, the outer wall of the receiving groove is a conical surface that is wider at the top and narrower at the bottom, so that the outer wall forms a windbreak surface that guides the airflow to the air outlet grille.

[0011] In one or more embodiments of the present invention, the base is screwed into a slot at the bottom edge of the housing by a snap fastener. The bottom surface of the base has two inwardly recessed grooves, thereby forming a raised structure on the inner side of the base for supporting the filter element, and forming a handle for rotating the base between the two grooves.

[0012] Compared with the prior art, the advantages of this utility model are: not only is the internal structure compact and can meet the needs of desktop air purification, but it is also equipped with an odor sensor that can provide feedback on the air quality data after filtration and adjust the motor speed accordingly, thereby improving the air purification efficiency when the odor concentration is high and reducing the product's power consumption and noise when the air quality is good, which greatly enhances the user experience. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the external three-dimensional structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the disassembled structure of the top cover of this utility model.

[0015] Figure 3 This is a schematic diagram of the internal disassembly structure of the casing of this utility model.

[0016] Figure 4 This is one of the cross-sectional structural schematic diagrams of this utility model.

[0017] Figure 5 This is the second cross-sectional structural schematic diagram of this utility model.

[0018] Figure 6 This is a schematic diagram of the airflow direction of this utility model. Detailed Implementation

[0019] The following is in conjunction with the appendix Figures 1 to 6 The following is a further description of the proposed solution:

[0020] A desktop air purifier with odor sensing function includes a housing 1, a top cover 2 and a base 3 respectively located at the upper and lower openings of the housing 1. A blower mechanism 4 is installed through the upper opening of the housing 1, and a filter element 5 is installed through the lower opening of the housing 1. An air inlet 11 is provided on the outer wall of the housing 1, which is opposite to the position of the filter element 5. The filter element 5 is cylindrical, and its central channel is directly opposite the air inlet of the blower mechanism 4. A receiving slot 21 for placing control components is provided in the middle of the top cover 2. The control components include a control circuit board 6 and an odor sensor 7. An air outlet grille 22 is provided around the receiving slot 21 to achieve circumferential air outlet. An air hole 23 communicating with the air outlet of the blower mechanism 4 is provided in the receiving slot 21.

[0021] Specifically, the receiving slot 21 is provided with a support plate 24 for fixing the control circuit board 6. The support plate 24 covers the opening of the receiving slot 21 and has an operation panel 25 on its top. The user touches the corresponding key on the operation panel 25 to realize the switching and function control of the product. The receiving slot 21 has multiple support frames 26 surrounding its inner wall, and several support columns 27 at its bottom. The edge of the support plate 24 rests on the support frame 26 and is then connected and fixed to the support column 27 by screws. The support column 27 provides connection and support for the control circuit board 6. An odor sensor 7 is installed in the space of the receiving slot 21 below the control circuit board 6. The air vent 23 is located next to the odor sensor 7 and is connected to the air outlet of the blower mechanism 4 via the air duct 40 provided on the blower mechanism 4. When the blower mechanism 4 is running, part of the airflow will be blown towards the odor sensor 7 through the air duct 40, thereby obtaining filtered air quality data and feeding it back to the control circuit board 6. When the odor concentration in the air is high, the control circuit board 6 will increase the power of the blower mechanism 4 to improve air purification efficiency. When the air quality is good, the control circuit board 6 will reduce the power consumption of the blower mechanism 4 to achieve energy saving and noise reduction, greatly improving the user experience.

[0022] Meanwhile, to help users understand the current air quality more intuitively, the control circuit board 6 is surrounded by a breathing light ring 61 composed of multiple colorful LED beads. A light-transmitting strip 241 is formed on the support plate 24 opposite to the breathing light ring 61 to display the light effect of the breathing light ring. Thus, different colors of light indicate air quality; for example, red indicates a high odor concentration and low air quality; yellow indicates a moderate odor concentration; blue indicates a low odor concentration; and green indicates no odor and good air quality. Of course, the color of the light can be selected according to specific needs, and light-changing effects can also be set, which will not be detailed here.

[0023] In terms of the body structure, the inner wall of the housing 1 is provided with several support brackets 12, and the lower part of the blower mechanism 4 is provided with an isolation bracket 41 for assembly and connection with the support brackets 12. The isolation bracket 41 fits against the inner wall of the housing 1 to separate the inner cavity of the housing 1 vertically, so as to ensure the air filtration path. The blower mechanism 4 includes a motor 42, a motor housing 43 and a fan wheel 44. The fan wheel 44 is installed below the motor housing 43 and faces the filter element 5. The outer side of the motor housing 43 is provided with multiple guide vanes 45. The motor housing 43 has an air duct 40 that extends to the fan wheel 44. The air duct 40 is opposite to the air hole 23 on the receiving groove 21. The outer wall 211 of the receiving groove 21 is a conical surface that is wider at the top and narrower at the bottom, so that the outer wall forms a windproof surface that guides the airflow to the air outlet grille 22, allowing the airflow to exit at a certain angle and better diffuse into the space.

[0024] To facilitate filter replacement, the base 3 is screwed to the slot 13 at the bottom edge of the housing 1 via a buckle 31. The bottom surface of the base 3 has two inwardly recessed grooves 32, thereby forming a raised structure on the inner side of the base 1 to support the filter element 5. A handle 33 for rotating the base 3 is formed between the two grooves 32.

[0025] This invention not only has a compact internal structure that meets the needs of desktop air purification, but also features an odor sensor that can provide feedback on the air quality data after filtration and adjust the motor speed accordingly. This improves the air purification efficiency when the odor concentration is high and reduces the product's power consumption and noise when the air quality is good, greatly enhancing the user experience.

[0026] The above preferred embodiments should be regarded as illustrative examples of the embodiments of the present application. Any technical deductions, substitutions, improvements, etc. that are similar to or based on the present application should be considered within the scope of protection of this patent.

Claims

1. A desktop air purifier with odor sensing function, characterized in that, The device includes a housing, a top cover and a base respectively located at the upper and lower openings of the housing. A blower mechanism is installed through the upper opening of the housing, and a filter element is installed through the lower opening of the housing. The outer wall of the housing has an air inlet corresponding to the position of the filter element. The filter element is cylindrical, and its central channel is directly opposite the air inlet of the blower mechanism. The top cover has a receiving slot in the middle for placing control components. The control components include a control circuit board and an odor sensor. An air outlet grille is provided around the receiving slot to achieve circumferential air outlet. The receiving slot has an air hole that connects to the air outlet of the blower mechanism.

2. The desktop air purifier with odor sensing function according to claim 1, characterized in that, The receiving slot is provided with a support plate for fixing the control circuit board. The support plate covers the opening of the receiving slot and has an operation panel on its top.

3. The desktop air purifier with odor sensing function according to claim 2, characterized in that, The receiving groove is provided with multiple support frames around the inner wall and several support columns at the bottom of the receiving groove. The edge of the support plate rests on the support frame and is then connected and fixed to the support column by screws.

4. The desktop air purifier with odor sensing function according to claim 2, characterized in that, The control circuit board is surrounded by a breathing light ring composed of multiple colorful LED beads, and a light-transmitting strip is formed on the support plate opposite to the breathing light ring to present the light effect of the breathing light ring.

5. The desktop air purifier with odor sensing function according to claim 1, characterized in that, The inner wall of the housing is provided with several support brackets, and the lower part of the blower mechanism is provided with an isolation bracket for assembly and connection with the support brackets. The isolation bracket fits against the inner wall of the housing to separate the inner cavity of the housing vertically.

6. The desktop air purifier with odor sensing function according to claim 1, characterized in that, The blower mechanism includes a motor, a motor housing, and a fan wheel. The fan wheel is installed below the motor housing and faces the filter element. Multiple guide vanes are provided on the outer side of the motor housing. The motor housing has an air duct that extends to the fan wheel. The air duct is opposite to the air holes on the receiving slot.

7. The desktop air purifier with odor sensing function according to claim 1, characterized in that, The outer wall of the receiving groove is a conical surface that is wider at the top and narrower at the bottom, so that the outer wall forms a windbreak surface that guides the airflow to the air outlet grille.

8. The desktop air purifier with odor sensing function according to claim 1, characterized in that, The base is screwed into the slot at the bottom edge of the housing by a snap fastener. The bottom surface of the base has two inwardly recessed grooves, thereby forming a raised structure on the inner side of the base to support the filter element. A handle for rotating the base is formed between the two grooves.

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