A portable multifunctional clean air blower for infants and young children

Abstract

The present invention relates to the field of air purification devices, and in particular to a portable multifunctional clean air blower for infants and young children, comprising a casing and a fan combination, a filtering device and a detecting device arranged in the casing, wherein the fan combination and the filtering device are located in the lower casing, the filtering device is located at the lower end of the fan combination, the detecting device is located in the upper casing of the fan combination, and a function key group is provided at the top of the upper casing. The present invention utilizes the supercharging principle of a turbo fan to obtain high-flow clean air with a smaller air outlet area, has a large output air volume, can quickly filter the surrounding air, has a good purification effect, adopts a new structure, has good sealing performance, has a simple structure, is small in size, is easy to carry, is easy to use, is suitable for various indoor and outdoor use scenarios, can filter air and provide cooling effects, and can detect the real-time values ​​of PM2.5 particles, temperature, and humidity in the environment.

Description

Technical Field

[0001] The present invention relates to the field of air purification devices, in particular to a portable multi-function air purifier for infants and young children.

[0002] Clean air blower Background Art

[0003] In people's daily life activities, they often encounter some environments with poor air quality, especially infants and young children in some public places, such as crowded places, places with poor air circulation, and on the road. Because the air in these places is relatively poor or stuffy, it has a serious impact on the health of infants and young children. The emergence of portable air purifiers has greatly reduced the threat of the environment to infants and young children. However, for current portable air purifiers, one of the factors that affect the purification efficiency of the purifier is the output air volume, according to which the air volume Q is equal to the product of the wind speed V and the cross-sectional area F of the air duct. That is, Q=VF, wherein the air volume calibrated by the fan determines the maximum output air volume that the purifier can obtain. Current portable air purifiers are limited by their small size and all use small axial flow fans to supply air. In order to reduce the wind resistance of the air outlet and thus obtain the maximum output air volume, a large-area air outlet design is adopted. Due to the above reasons, the wind speed of the air outlet of the current portable air purifier is very low, generally 1 meter per second, and the air supply distance is short, so it can only be used to be placed in a small space to filter the air in the small space through a certain period of time, but the filtered clean air cannot be blown directly and quickly to the user, especially when used in a large space with poor air quality and high temperature or outdoors, the user cannot breathe clean air in time and cannot get the experience of cool breeze.

[0004] The portable air purifiers currently on the market have low wind speeds, no wind sweeping function, and single functions. They cannot have the characteristics of infant products and can not provide infants with clean air and cooling effects in a timely manner in various indoor and outdoor usage scenarios. Summary of the invention

[0005] In order to overcome the shortcomings of the above-mentioned prior art, the purpose of the present invention is to provide a portable multifunctional clean air blower for infants and young children, which combines a turbo fan and an air filter, and utilizes the boost principle of the turbo fan to obtain high-flow clean air with a smaller air outlet area. It has a large output air volume, can quickly filter the surrounding air, and has a good purification effect. It adopts a new structure with good sealing performance. It has a simple structure, a small size, is easy to carry, easy to use, and has a more reasonable design. It is suitable for various indoor and outdoor usage scenarios, can filter the air and provide cooling effects, and can detect the real-time values ​​of PM2.5 particles, temperature, and humidity in the environment.

[0006] To achieve the above-mentioned purpose, the present invention provides a portable multifunctional clean air blower for infants and young children, comprising a casing and a fan assembly, a filtering device and a detecting device arranged in the casing, wherein the fan assembly and the filtering device are located in the lower casing, the filtering device is located at the lower end of the fan assembly, the detecting device is located in the upper casing of the fan assembly, a function key group is provided at the top of the upper casing, an air inlet and an air outlet communicated with the detecting device are provided on one side, and a purifier air inlet is evenly provided on all four sides of the lower casing, the fan assembly comprises a motor, a fan fixing bracket provided with a turbofan, a groove structure is provided in the fan fixing bracket, a convex structure matching the shape of the turbofan is provided at the lower part of the turbofan, the turbofan is installed in the fan fixing bracket through a fan fixing pressure plate arranged at the lower end of the fan fixing bracket, the convex block on the turbofan is placed in the groove on the fan fixing bracket, a gear bar is provided on the outside of the turbofan, and a pinion tangentially engaged with the gear bar is provided on the motor; the filtering device comprises a filter element and a filter element fixing bracket, the fixing bracket is a hollow structure and threaded holes are provided at the upper and lower ends. When in use, add lubricating grease into the groove. This groove design reduces the friction between components during rotation. The lubricating grease in the groove blocks the air that has not passed through the filter element from entering the turbofan, thereby achieving airtightness between components. The hollow structure of the filter element fixing bracket can greatly increase the amount of filtered air.

[0007] Furthermore, in order to improve the filtering effect and sealing performance of the filtering device, the filter element fixing bracket is arranged on the fan fixing pressure plate; the filter element is sleeved on the filter element fixing bracket, and a filter element sealing sponge is arranged between the filter element and the filter element fixing bracket.

[0008] Furthermore, in order to ensure that the magnetically controlled switch can accurately obtain the turbofan position signal, a magnetic block is provided at the turbofan rotation maximum limit position, a fan outlet is provided on the lateral side opposite to the gear bar, and a purifier outlet is provided at one end of the casing corresponding to the fan outlet; a magnetically controlled switch is provided in the casing, and the magnetically controlled switch is located at both ends corresponding to the turbofan rotation maximum limit position.

[0009] Furthermore, in order to improve the accuracy of air quality detection, the detection device includes a small fan, a sensor bracket, and a PCB board. The sensor bracket is fixed on the PCB board, the small fan is arranged on the sensor bracket, and the sensor bracket is also provided with a sensor bracket cover. The sensor bracket is provided with an air inlet and an air outlet. A temperature sensor, a humidity sensor, and a photodiode are sequentially arranged inward from the air inlet end. The laser tube is arranged on the side opposite to the photodiode, and a sealing rubber sleeve is provided at the air inlet.

[0010] Preferably, in order to improve the practicality of the air purifier, the function key group includes a night light button, a wind sweep button, a wind speed button, a music button, and an automatic button, and an external power supply USB socket and a speaker hole are provided between the air inlet and the air outlet.

[0011] Furthermore, in order to improve the human-computer interaction experience and ensure the feasibility of remote control of the purifier function, a control single chip microcomputer connected to a Bluetooth single chip microcomputer is provided in the casing, and the control single chip microcomputer is provided with an environment detection circuit, a music playing circuit, a night light control circuit, an air volume control circuit, and an air sweep control circuit. The fan combination, detection device, function key group and magnetic control switch are all electrically connected to the control single chip microcomputer.

[0012] Preferably, in order to ensure overall stability, the filter device and fan assembly components are fixed by bolts.

[0013] Preferably, in order to ensure that the magnetically controlled switch accurately controls the motor to drive the turbofan to rotate at an angle, the turbofan's maximum rotation limit position is the maximum length of the gear bar.

[0014] Preferably, in order to facilitate the replacement of the filter element, a bottom cover screw is provided at the bottom of the casing.

[0015] The invention has the beneficial effects of: a portable multifunctional clean air blower for infants and young children, which has a large output air volume, can quickly filter the surrounding air, has a good purification effect, can circulate the purified air evenly in different parts, has a simple structure, a small size, is easy to carry, is convenient to use, has a more reasonable design, and can detect the real-time values ​​of PM2.5 particles, temperature, and humidity in the environment in various indoor and outdoor use scenarios, which can effectively solve the shortcomings of existing products on the market. According to the individual requirements of infants and young children, music playback and night light lighting functions are added, which is suitable for infants and young children to use, and can filter air and cool down at the same time. In the fan combination in the casing, a groove structure is provided in the fan fixing bracket, and a convex structure matching the shape of the turbofan is provided at the bottom, which is designed to be in contact with the concave-convex groove, and lubricating grease is added to the concave-convex groove. This concave-convex groove design plays the role of: (1) reducing the friction between the turbofan and the fan fixing plate when rotating, and (2) blocking the air that has not passed through the filter element from entering the turbofan through the lubricating grease in the concave-convex groove, thereby playing the role of airtightness between the components. It adopts a combination of a turbo fan and an air filter, and uses the turbo fan's pressurization principle to obtain high-flow clean air with a smaller air outlet area. The air outlet wind speed can reach 2.5 meters per second. The internal design structure uses a unique turbo fan with high sealing performance. In order to avoid users from being uncomfortable due to wind for a long time, the turbo fan sweeping device uses a single-chip microcomputer to control the motor to drive the turbo fan to rotate for sweeping. Users can adjust the wind speed, sweeping angle or stop sweeping through the function buttons on the panel or the mobile phone APP as needed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] For ease of explanation, the present invention is described in detail with reference to the following preferred embodiments and the accompanying drawings.

[0017] Figure 1 The present invention discloses a portable multifunctional clean air blower structure for infants and young children;

[0018] Figure 2 This is a structural diagram of a fan combination and a filter device of a portable multifunctional clean air blower for infants and young children of the present invention;

[0019] Figure 3 This is an exploded view of a portable multifunctional clean air blower for infants and young children of the present invention;

[0020] Figure 4 It is five views of the appearance of a portable multifunctional clean air blower for infants and young children of the present invention;

[0021] Figure 5 This is a structural diagram of a portable multifunctional clean air blower detection device for infants and young children of the present invention;

[0022] Figure 6 It is an exploded view of a portable multifunctional clean air blower detection device for infants and young children of the present invention;

[0023] Figure 7 The present invention discloses a circuit control diagram of a portable multifunctional clean air blower detection device for infants.

[0024] In the figure: 1-housing, 11-lower housing, 12-upper housing, 121-air inlet, 122-air outlet, 123-speaker hole, 124-external power USB socket, 13-bottom cover screw, 14-purifier air outlet, 15-purifier air inlet, 2-fan assembly, 21-fan fixing bracket, 211-groove structure, 22-motor, 23-gear bar, 24-turbo fan, 241-protrusion structure, 242-fan air outlet, 221-pinion, 25-fan fixing plate, 26-magnetic block, 3-filter device, 31-filter element fixing bracket, 311-threaded hole, 32-filter element, 33-filter element sealing sea Cotton, 4-detection device, 41-small fan, 42-laser tube, 43-humidity sensor, 44-temperature sensor, 45-photosensitive diode, 46-air inlet, 47-air outlet, 48-sensor bracket cover, 49-sensor bracket, 5-function key group, 51-sweep button, 52-night light button, 53-automatic button, 54-music button, 55-wind speed button, 6-magnetic switch, 7-PCB board, 8-sealing rubber sleeve, 9-control single-chip microcomputer, 91-Bluetooth single-chip microcomputer, 92-environment detection circuit, 93-music playback circuit, 94-night light control circuit, 95-air volume control circuit, 96-sweep control circuit. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Embodiment 1:

[0027] like Figure 1 A portable multifunctional clean air blower for infants is shown, comprising a casing 1 and a fan assembly 2, a filter device 3 and a detection device 4 arranged in the casing 1, wherein the fan assembly 2 and the filter device 3 are located in a lower casing 11, the filter device 3 is located at the lower end of the fan assembly 2, the detection device 4 is located in an upper casing 12 of the fan assembly 2, a function key group 5 is provided at the top of the upper section of the casing 1, an air inlet 121 and an air outlet 122 communicated with the detection device 4 are provided on one side, a purifier air inlet 15 is evenly provided on four sides of the lower casing 11, the fan assembly 2 comprises a motor 22, a fan fixing bracket 21 provided with a turbofan 24, and the fan A groove structure 211 is provided in the fixing bracket 21, and a protrusion structure 241 matching the shape of the turbofan 24 is provided at the lower part of the turbofan 24. The turbofan 24 is installed in the fan fixing bracket 21 through a fan fixing pressure plate 25 provided at the lower end of the fan fixing bracket 21. The protrusion structure 241 on the turbofan 24 is placed in the groove structure 211 on the fan fixing bracket 21. A gear bar 23 is provided outside the turbofan 24, and a pinion 221 tangentially engaged with the gear bar 23 is provided on the motor 22. The filter device 3 includes a filter element 32 and a filter element fixing bracket 31. The filter element fixing bracket 31 is a hollow structure and has threaded holes 311 at both ends. When in use, lubricating grease is added to the groove. This groove design reduces the friction between components when rotating. The lubricating grease in the groove blocks the air that has not passed through the filter element from entering the turbofan, which plays an airtight role between components. The hollow structure of the filter element fixing bracket can greatly increase the amount of filtered air.

[0028] like Figure 2 , 3A portable multifunctional clean air blower for infants and young children is shown. In order to improve the filtering effect and sealing performance of the filtering device, the filter element fixing bracket 31 is arranged on the fan fixing pressure plate 25; the filter element 32 is sleeved on the filter element fixing bracket 31, and a filter element sealing sponge 33 is arranged between the filter element 32 and the filter element fixing bracket 31; in order to ensure that the magnetic control switch can accurately obtain the turbofan position signal, a magnetic block 26 is arranged at the maximum rotation limit position of the turbofan 24, and a fan outlet 242 is arranged on the lateral side opposite to the gear bar 23, and a purifier outlet 14 is arranged at one end of the casing 1 corresponding to the fan outlet 242; a magnetic control switch 6 is arranged in the casing 1, and the magnetic control switch 6 is located at both ends corresponding to the maximum rotation limit position of the turbofan 24.

[0029] like Figure 5 , 6 A portable multifunctional clean air blower for infants is shown. In order to improve the accuracy of air quality detection, the detection device 4 includes a small fan 41, a sensor bracket 49, and a PCB board 7. The sensor bracket 49 is fixed on the PCB board 7. The small fan 41 is arranged on the sensor bracket 49. The sensor bracket 49 is also provided with a sensor bracket cover 48. The sensor bracket 49 is provided with an air inlet 46 and an air outlet 47. A temperature sensor 44, a humidity sensor 43, and a photodiode 45 are arranged in sequence from the end of the air inlet 46. The laser tube 42 is arranged on the side opposite to the photodiode 45. A sealing rubber sleeve 8 is provided at the air inlet 46.

[0030] like Figure 1-7 As shown, in order to improve the practicality of the air purifier, the function key group 5 includes a wind sweeping button 51, a night light button 52, an automatic button 53, a music button 54, and a wind speed button 55. An external power USB socket 124 and a speaker hole 123 are provided between the air inlet 121 and the air outlet 122. In order to improve the human-computer interaction experience and ensure the feasibility of the remote control purifier function, a control single chip microcomputer 9 connected to a Bluetooth single chip microcomputer 91 is provided in the housing 1. The control single chip microcomputer 9 is provided with an environment detection circuit 92, a music playback circuit 93, and a music playback circuit 94. Circuit 93, night light control circuit 94, air volume control circuit 95, wind sweep control circuit 96, the fan assembly 2, detection device 4, function key group 5 and magnetic control switch 6 are all electrically connected to the control single chip computer 9; in order to ensure the overall stability, the filter device 3 and the fan assembly 2 are fixed by bolts; in order to ensure that the magnetic control switch accurately controls the motor to drive the turbo fan to rotate at an angle, the turbo fan 24 rotates at a maximum limit position of the gear bar 23 at a maximum length; in order to facilitate the replacement of the filter element, there is a bottom cover screw 13 at the bottom of the casing 1.

[0031] Embodiment 2:

[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a portable multifunctional clean air blower for infants and young children includes a purifier air outlet 14. To enhance the output wind speed, the purifier air outlet 14 adopts a single-sided air outlet design. The air outlet directly faces the purifier air outlet 14 of the turbo fan 24, which has the advantages of short wind path and small wind resistance. The high-speed airflow of the turbo fan 24 is directly blown out through the purifier air outlet 14 so that the wind speed can reach 2.5 meters per second, and the calibrated air volume of the turbo fan 24 is obtained to the maximum extent. The top of the housing 1 is provided with a night light button 52, a wind sweep button 51, a wind speed button 55, a music button 54, and an automatic button 53, and the back of the housing 1 is provided with an external power USB socket 124 and a speaker hole 123 to provide users with multifunctional use. The back of the housing 1 is provided with an air inlet 121 and an air outlet 122 of the detection device 4, which are the inlet and outlet channels for the detection device 4 in the housing 1 to absorb the air outside the housing. The housing 1 is provided with a purifier air inlet 15 on all four sides. There is a bottom cover screw 13 at the bottom of the housing 1 for the convenience of users to replace the air filter element 32. The fan air sweeping air filter assembly shown includes a fan combination and a filtering structure. Figure 2 , Figure 3 The components shown in the figure are composed of a turbofan 24 with a gear bar 23, which is installed in a fan fixing bracket 21 through a fan fixing plate 25 to ensure that the turbofan 24 maintains the same longitudinal and lateral positions during rotation, so that the fan outlet 242 of the turbofan 24 always moves along the axis radius. A groove structure 211 is provided in the fan fixing bracket 21. The lower part of the turbofan 24 is provided with a convex structure 241 matching its shape, which is designed to be in contact with the concave and convex grooves. Lubricating grease is added to the concave and convex grooves. This concave and convex groove design plays the role of: (1) reducing the friction between the turbofan 24 and the fan fixing plate 25 during rotation; (2) blocking the air that has not passed through the filter element 32 from entering the turbofan 24 through the lubricating grease in the concave and convex grooves, thereby playing the role of airtightness between the components. The filter element fixing bracket 31 is fastened to the fan fixing pressure plate 25, the filter element sealing sponge 33 and the filter element 32 are inserted into the filter element bracket 31, and the air is sucked in by the turbo fan 24 through the filter element 32 and pressurized to output high-speed clean air from the purifier outlet 14, such as Figure 2 , Figure 3 The motor 22 and pinion 221 shown drive the turbofan 24 to rotate as a whole to achieve the wind sweeping function. The magnetic control switch 6 installed on the circuit board (not marked) and the magnetic block 26 installed on the turbofan 24 provide position signals to the single-chip microcomputer (MCU) 9. The single-chip microcomputer (MCU) 9 controls the motor 22 according to the position signal to drive the turbofan 24 to complete the adjustment of the rotation direction.

[0033] like Figure 5 , Figure 6 The detection device 4 shown in the figure is composed of Figure 5As shown in the figure, a small fan 41, a laser tube 42, a photosensitive diode 45, a humidity sensor 43, and a temperature sensor 44 are installed in the air duct of the air inlet 46 of the sensor bracket 49, as shown in the figure. Figure 6 As shown, the air sucked from the outside of the housing 1 by the small fan 41 passes through the humidity sensor 43, the temperature sensor 44, and the photodiode 45 to collect the temperature, humidity and PM2.5 particle data of the air. The collected data is sent to the relevant circuit on the PCB board 7 for sorting and then processed by the single chip microcomputer (MCU) 9 to display the temperature, humidity and PM2.5 particle values. The sensor bracket cover 48 prevents the leakage of the laser beam. The sealing rubber sleeve 8 is used to close the housing to ensure that the detection device only sucks the air outside the housing 1.

[0034] like Figure 7 The portable multifunctional clean air blower circuit for infants and young children shown in the figure is composed of an environment detection circuit 92, a music playing circuit 93, a night light control circuit 94, an air volume control circuit 95, and a wind sweeping control circuit 96. It can be connected to a mobile phone APP through a Bluetooth wireless connection. Users can complete the multifunctional selection settings of the air volume, wind sweeping switch, night light switch, color, play switch, and music tracks on the mobile phone APP as needed. The environment detection circuit 92 completes the processing of the PM2.5 particulate matter, temperature, and humidity signals from the detection device and sends them to the Bluetooth microcontroller 91 for conversion, and the results are displayed on the mobile phone APP through the Bluetooth link.

[0035] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the left-right rotation technical solution of the present invention is not limited to the above-mentioned embodiments, nor is it limited to use only on air purifiers. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the solution of the present invention. These changes involve related technologies well known to those skilled in the art, which all fall within the scope of protection of the patent of the present invention.

[0036] Many other changes and modifications may be made without departing from the concept and scope of the present invention.It should be understood that the present invention is not limited to the specific embodiments, and the scope of the present invention is defined by the appended claims.

Claims

1. A portable multifunctional clean air blower for infants and young children, Features: The invention comprises a casing (1) and a fan assembly (2), a filter device (3) and a detection device (4) arranged in the casing (1); the fan assembly (2) and the filter device (3) are located in a lower casing (11); the filter device (3) is located at the lower end of the fan assembly (2); the detection device (4) is located in an upper casing (12) of the fan assembly (2); a function key group (5) is provided at the top of the upper casing (1); an air inlet (121) and an air outlet (122) which are in communication with the detection device (4) are provided on one side; air purifier air inlets (15) are evenly arranged on four sides of the lower casing (11); the fan assembly (2) comprises a motor; A fan fixing bracket (21) is provided with a turbofan (24), wherein a groove structure (211) is provided in the fan fixing bracket (21), and a protruding structure (241) matching the shape of the turbofan (24) is provided at the lower part of the turbofan (24), and the turbofan (24) is installed in the fan fixing bracket (21) through a fan fixing pressure plate (25) provided at the lower end of the fan fixing bracket (21), and the protruding structure (241) on the turbofan (24) is placed in the groove structure (211) on the fan fixing bracket (21), and a gear bar (23) is provided outside the turbofan (24), and a gear bar (23) is provided on the motor (22) matching the gear bar (23) The wheel strip (23) is tangentially meshed with a small gear (221); the filtering device (3) comprises a filter element (32) and a filter element fixing bracket (31); the filter element fixing bracket (31) is a hollow structure and has threaded holes (311) at both ends; a magnetic block (26) is provided at the maximum rotation limit position of the turbofan (24); a fan air outlet (242) is provided on the opposite side of the gear strip (23); a purifier air outlet (14) is provided at one end of the casing (1) corresponding to the fan air outlet (242); a magnetic control switch (6) is provided in the casing (1); the magnetic control switch (6) is located at the position corresponding to the rotation of the turbofan (24). At both ends of the maximum limit position; the detection device (4) comprises a small fan (41), a sensor bracket (49), and a PCB board (7); the sensor bracket (49) is fixed on the PCB board (7); the small fan (41) is arranged on the sensor bracket (49); the sensor bracket (49) is also provided with a sensor bracket cover (48); the sensor bracket (49) is provided with an air inlet (46) and an air outlet (47); a temperature sensor (44), a humidity sensor (43), and a photosensitive diode (45) are sequentially arranged inwardly from the air inlet (46); and a sealing rubber sleeve (8) is provided at the air inlet (46);The housing (1) is provided with a control single chip computer (9) connected to a Bluetooth single chip computer (91); the control single chip computer (9) is provided with an environment detection circuit (92), a music playing circuit (93), a night light control circuit (94), an air volume control circuit (95), and an air sweep control circuit (96); the fan assembly (2), the detection device (4), the function key group (5), and the magnetic control switch (6) are all electrically connected to the control single chip computer (9).

2. A portable multifunctional clean air blower for infants and young children according to claim 1, Features: The filter element fixing bracket (31) is arranged on the fan fixing pressure plate (25); the filter element (32) is sleeved on the filter element fixing bracket (31), and a filter element sealing sponge (33) is arranged between the filter element (32) and the filter element fixing bracket (31).

3. A portable multifunctional clean air blower for infants and young children according to claim 1, Features: The function key group (5) comprises a wind sweeping button (51), a night light button (52), an automatic button (53), a music button (54), and a wind speed button (55); an external power supply USB socket (124) and a speaker hole (123) are provided between the air inlet (121) and the air outlet (122).

4. A portable multifunctional clean air blower for infants and young children according to claim 1, Features: The filter device (3) and the fan assembly (2) are fixed together by bolts.

5. A portable multifunctional clean air blower for infants and young children according to claim 1, Features: The maximum rotation limit position of the turbo fan (24) is the maximum length of the gear bar (23).

6. A portable multifunctional clean air blower for infants and young children according to claim 1, Features: A bottom cover screw (13) is provided at the bottom of the casing (1).

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