CN212585137U

CN212585137U - Regional air purification device

Info

Publication number: CN212585137U
Application number: CN202020611240.6U
Authority: CN
Inventors: 徐洪明; 徐金明
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-21
Filing date: 2020-04-21
Publication date: 2021-02-23
Anticipated expiration: 2030-04-21

Abstract

The utility model relates to a regional air purification device, which comprises a shell, wherein a hollow cavity is arranged in the shell, and a negative pressure air inlet area and a positive pressure air outlet area which are both in fluid communication with the cavity are arranged on the shell; a filter member disposed within the chamber; the wind power assembly is arranged in the cavity and can draw air from the negative pressure air inlet area and supply air to the positive pressure air outlet area; the regional outside that is located malleation air-out district region of negative pressure air inlet to promote to form and to block the dust, the negative pressure suction zone of droplet, structural design is reasonable, keeps apart effectually, and the user sits the utility model discloses a can share the clean air in positive pressure district alone when purifier's positive pressure district is near, and user or other people's exhalation droplet all by air inlet district department air current effectively inhale in the casing, avoid carrying bacterial virus by the protection people and pollute the surrounding environment, also avoid being inhaled by the protection people and inhaled by other people contaminated air, unnecessary clean air emits into the surrounding environment simultaneously and plays the purifying environment effect.

Description

Regional air purification device

Technical Field

The utility model belongs to the technical field of air purification, concretely relates to especially be fit for regional air purification device that individual used.

Background

The existing respiratory protection products are divided into active protection and passive protection, wherein the passive protection products such as a mask can strictly filter air, but are not suitable for long-term wearing, because the following problems can be caused if the products are worn for a long time: 1. when the patch is worn for more than 4 hours, the dermis of the skin at the positions of the nose bridge, the cheekbones, the ears and the like is thin and lacks the buffer of the fat layer, so that pressure-related injury is easily caused, local skin depression or congestion appears at the early stage, and skin ulceration and infection appear at the serious stage; 2. the skin is sealed and local pressure is caused by wearing the mask for a long time, so that the pilosebaceous canal is blocked, and in addition, the steam exhaled from the nasal cavity forms a local damp and hot microenvironment in the mask wrapping range, so that propionibacterium acnes, malassezia, mites and the like are easy to activate, and the acne or the original acne is possibly aggravated.

Wherein, the positive pressure breathing mask is heavy, inconvenient in practical production and use without special medical treatment and not too elegant; the breathing purifier is used for disinfecting the whole room, the time effect is slow, and the breathing purifier cannot play a good protection role if a patient suddenly enters the breathing purifier.

To above-mentioned problem, chinese utility model patent that patent number is CN201821528692.7 (the bulletin number is CN208998221U) discloses "a desktop formula respiratory purifier", and this respiratory purifier includes desktop body, fan and filter equipment, the desktop body includes upper surface, lower surface and side, cavity is constituteed to upper surface, lower surface and side, the fan with filter equipment locates in the cavity, just the fan with the filter equipment position corresponds from top to bottom, the upper surface with the lower surface is equipped with a plurality of ventilation holes respectively, can realize carrying out air purification to individual special position, and occasion such as especially classroom, office space can purify the air in individual place space, realizes supplying with exclusive clean air to individual.

In other words, the patent modifies the table to a breathing cleaner to fulfill the need for an individual to inhale clean air. However, this solution has a number of disadvantages: 1. the large-area popularization and application cannot be realized, because the office table top cannot be replaced by a structure with a built-in breathing purifier at any time and any place, and all the table tops are made into the structure with the built-in breathing purifier, the cost is high; 2. although the purifier can purify the air in the area where the user is located, when two persons contact with each other in a short distance, no matter the user or the person contacting with the user in a short distance, the purifier has poor isolation effect on the cross transmission of the air and the droplets exhaled by the two persons, and the user or the person in a short distance can still breathe the droplets or polluted air of the other person; the working principle of the purifier is not different from that of most purifiers on the market in nature, and the purifier cannot quickly respond to short-distance sudden pollution.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to prior art's current situation, provide one kind through forming inlayer positive pressure district and outer negative pressure district, make clean air can only be to the regional air purification device of pollution area one-way flow.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a regional air purification device comprises

The air conditioner comprises a shell, a fan and a fan, wherein a hollow cavity is formed inside the shell, and a negative pressure air inlet area and a positive pressure air outlet area which are in fluid communication with the cavity are formed in the shell;

a filter member disposed within the chamber;

the wind power assembly is arranged in the cavity and can draw air from the negative pressure air inlet area and supply air to the positive pressure air outlet area;

the negative pressure air inlet area is positioned outside the positive pressure air outlet area, so that a negative pressure suction area capable of blocking dust and spray is formed.

The negative pressure air inlet area and the positive pressure air outlet area are arranged on the same side wall of the shell, and at least part or all of the positive pressure air outlet area is enclosed in a negative pressure suction area formed at the negative pressure air inlet area, so that at least part or all of the inner layer positive pressure air outlet area is in the outer layer negative pressure air inlet area, and flying foam exhaled by a user or polluted air from the outside can be better isolated and purified.

In order to avoid the mutual interference of air flows between the negative pressure air inlet area and the positive pressure air outlet area and influence the purification work of the purifier, an isolation area is arranged between the negative pressure air inlet area and the positive pressure air outlet area, so that the air inlet flow and the air outlet flow are not interfered with each other, and the air flows stably; in addition, the isolation area is convenient for users to write, read, place work requirements such as computer, the purifier not only plays the effect of purification, can also be used as the rest platform.

The negative pressure air flow formed at the negative pressure air inlet area can not only completely surround the air outlet positive pressure area, but also partially surround the air outlet positive pressure area, and the negative pressure air inlet area is distributed in a shape of a Chinese character 'hui'.

In order to further purify air, a sterilization assembly is arranged in the cavity and positioned on the airflow flow path, and the remote flying spray of other people, dust in the air or air with viruses can reach the position near the nose of the protected person only after being sterilized by the sterilization assembly, so that the protected person can breathe clean air.

In order to facilitate the arrangement of the filtering piece and the sterilization assembly, the filtering piece is arranged along the distribution area of the negative pressure air inlet area and is positioned at the negative pressure air inlet area, and the sterilization assembly is positioned at the downstream of the filtering piece along the air flow path.

In order to be able to carry the directional subassembly department of disinfecting of carrying of air current in getting into the casing, avoid the air current not just to flow from the malleation exhaust area through disinfecting, be equipped with in the cavity with filter the guide plate of the terminal surface laminating in negative pressure air inlet district dorsad, filter the peripheral distribution of piece along the guide plate, the storage tank that supplies the subassembly of disinfecting to arrange in is seted up at the neighbouring central part of guide plate, sets up on the guide plate from its periphery towards the storage tank extension and with the guiding gutter that the storage tank is linked together. Therefore, the airflow enters the diversion trench after being filtered by the filter, and the diversion trench conveys the airflow to the accommodating groove in a directional manner and flows out from the positive pressure air outlet area after being sterilized.

In order to ensure that all the airflow filtered by the filter element can be conveyed to the sterilization component, a plurality of flow guide grooves are distributed in a scattering manner by taking the accommodating groove as the center. The filter parts are correspondingly provided with guide grooves.

Preferably, in the flow direction of the gas flow, the longitudinal cross-sectional area of the downstream of each of the flow guide grooves is smaller than the longitudinal cross-sectional area of the upstream. Therefore, when the airflow moves in the diversion trench, airflow with certain pressure can be formed, and the airflow can flow out of the positive pressure air outlet area after passing through the sterilization component.

In order to guarantee that the air current in the casing can flow to the malleation air-out district and flow from the malleation air-out district, preferably, wind power component has at least one and corresponds the setting of malleation air-out district, and wind power component can lead the air current in the casing to malleation air-out district department and blow out like this.

In order to facilitate the use of a plurality of people, at least one positive pressure air outlet area is arranged.

In order to prevent clean air formed by the positive pressure air outlet area from being polluted by outside air, each positive pressure air outlet area is partially or completely surrounded by one or more negative pressure air inlet areas.

Compared with the prior art, the utility model has the advantages that: 1. the utility model discloses a regional air purification device is provided with negative pressure air inlet district and malleation exhaust zone, external air gets into the casing through the negative pressure air inlet district and filters the back, from malleation exhaust zone outflow clean air for the user breathes, the similar anti-virus who takes the gauze mask has, the dust prevention, the effect of preventing aerosol pollution, possess the breathing pleasant sensation when not taking the gauze mask simultaneously again, the sense of closeness when exchanging with people, can reduce the pollution to the environment when user oneself infects bacterium or virus, and also can prevent that the user from breathing the contaminated air in the external world, be applicable to public places or the inside of family such as in the office, hospital, school, vehicle and use, in order to produce the private breathing space of relative cleanness; 2. the utility model discloses a negative pressure air inlet district and malleation air-out district department all can form independent air current, and the negative pressure air inlet district surrounds malleation air-out district part or whole including, and the structure is more reasonable, and it is better to keep apart the effect, and when using, lets out the air positive pressure district and aims at user's mouth nose position, and the negative pressure district surrounds malleation air outflow region after purifying, and the air that positive pressure district flows out reaches near user's mouth nose under the effect of pneumatic unit, so the user can only breathe the clean air after handling; because the far end of the user is surrounded by the negative pressure area, air, droplets exhaled by other people nearby and droplets of the user can be inhaled by the negative pressure area firstly to be purified and sterilized, so that the user or other people in close range can be prevented from infecting various viruses and inhaling dust; in conclusion, when a user sits near the positive pressure area of the purification device, the user can solely enjoy the clean air of the positive pressure area, and the air flow exhaled by the user or other people is effectively sucked into the shell by the air flow at the negative pressure air inlet area, so that the situation that the protected person carries bacteria and viruses to pollute the surrounding environment is avoided, the situation that the protected person sucks the air polluted by other people is also avoided, and meanwhile, the redundant clean air is discharged into the surrounding environment to play a role in purifying the environment; 3. the utility model discloses a purifier can hand-carry, in the occasion that needs air-purifying, puts purifier and forms a clean breathing space of private relatively in the region.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 with the upper cover removed;

FIG. 3 is an exploded view of FIG. 1;

FIG. 4 is a cross-sectional view of FIG. 1;

fig. 5 is a schematic structural diagram of embodiment 2 of the present invention;

FIG. 6 is a schematic view of the structure of FIG. 1 with the upper cover removed;

fig. 7 is a schematic structural view of a fan with more than two positive pressure air outlet regions.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

Example 1

As shown in fig. 1 to 4, the regional air purification device of the preferred embodiment includes a housing 1, a hollow chamber 11 is provided inside the housing 1, a negative pressure air inlet area 12 and a positive pressure air outlet area 13 are provided on a top wall of the housing 1, and both the negative pressure air inlet area 12 and the positive pressure air outlet area 13 are in fluid communication with the chamber 11.

A filter element 2, a sterilization component 4, a guide plate 5 and a wind power component 3 are arranged in a cavity 11 of the shell 1, the filter element 2, the guide plate 5, the sterilization component 4 and the wind power component 3 are sequentially arranged along the flow path of air flow, and the filter element 2 can adopt one or a combination of a plurality of filtering methods of coarse filtering, fine filtering, an active carbon adsorption layer and HEPA and ULPA composite filter elements to filter air entering the shell 1; the sterilization component 4 can adopt one or a combination of a plurality of sterilization methods such as negative ions, microwaves, ultrasonic waves, biological sterilization preparations, ultraviolet rays and the like, in the embodiment, the LED deep ultraviolet rays are preferably adopted for sterilization, because UVC ultraviolet rays directly cut off DNA of germs and destroy the reproductive capacity of the microbes for inactivation, when the microbes are irradiated by the ultraviolet rays, the genetic material DNA and RNA of the microbes absorb a large amount of energy of the ultraviolet rays to be destroyed and lose the division replication capacity, and finally the microbes die naturally or are destroyed by an immune system and lose the pathogenic capacity to human bodies; the wind power component 3 can draw air from the negative pressure air inlet area 12 and supply air to the positive pressure air outlet area 13, so that a negative pressure area is formed at the negative pressure air inlet area 12, and a positive pressure area is formed at the positive pressure air outlet area 13.

The area of the negative pressure air inlet area 12 is located at the outer side of the area of the positive pressure air outlet area 13, and the positive pressure air outlet area 13 is partially enclosed in the negative pressure area formed at the negative pressure air inlet area 12. In this embodiment, the left side, the right side and the rear side of the positive pressure air-out region 13 are both provided with the negative pressure air inlet regions 12, that is, the negative pressure air inlet regions 12 are distributed in a shape like a Chinese character hui, the negative pressure air inlet regions 12 can form a negative pressure region in a shape like a Chinese character hui on the periphery of the positive pressure air-out region 13, and the area of the negative pressure air inlet regions 12 is 2-100 times, preferably 70 times, the area of the positive pressure air-out region 13. The air flowing out from the positive pressure air outlet area 13 keeps positive pressure in a certain space range, and the clean air can only be diffused to the air with polluted air, so that a relatively clean area of a positive pressure area is formed.

Of course, the negative pressure air inlet area 12 and the positive pressure air outlet area 13 are not limited to the structural form shown in this embodiment, and may be formed in other structures, for example, the area where the negative pressure air inlet area 12 is located is arc-shaped, and the positive pressure air outlet area 13 is arc-shaped or strip-shaped, is located in the surrounding area of the negative pressure air inlet area 12, and is completely surrounded by the negative pressure air inlet area 12 to form a negative pressure annular air flow.

In this embodiment, the negative pressure air inlet area 12 is formed by a plurality of air inlet holes formed in the top wall of the housing 1, and the positive pressure air outlet area 13 is formed by a plurality of air outlet holes formed in the side wall of the housing 1, so as to facilitate the air to flow in and out.

The isolation area 14 is arranged between the negative pressure air inlet area 12 and the positive pressure air outlet area 13, so that the negative pressure area and the positive pressure area are not interfered with each other, the airflow stably flows, and the isolation area 14 ensures that enough areas are provided for placing working articles (such as books and computers) on the shell 1, so that a user can work and study normally while breathing clean air.

Filter 2 and set up and be located negative pressure air inlet district 12 department along the distribution area in negative pressure air inlet district 12, filter 2 and can divide into the polylith, still be equipped with frame 21 in the cavity 11, have a plurality of mounting holes 211 on the frame 21, filter 2 cartridge one-to-one in mounting hole 211 for filter 2 makes things convenient for the dismouting, along air current flow path, all filter 2 roof that is pasting casing 1.

Guide plate 5 and the terminal surface laminating of the negative pressure air inlet district 12 dorsad of filtering piece 2, filter piece 2 and distribute along guide plate 5's periphery, the storage tank 51 that supplies the subassembly 4 that disinfects to arrange in is seted up to the adjacent central part of guide plate 5, set up on the guide plate 5 from its periphery towards the guiding gutter 52 that the storage tank 51 extends, guiding gutter 52 is linked together with storage tank 51, guiding gutter 52 has a plurality ofly and is the scattering form distribution for the center with the storage tank 51, every filters piece 2 department promptly and all corresponds there is guiding gutter 52. The air current enters the diversion trench 52 after being filtered by the filter element 2, the diversion trench 52 conveys the air current into the containing groove 51 directionally, and the air current flows out from the positive pressure air outlet area 13 after being sterilized by the sterilizing component 4, so that the air current is prevented from flowing out from the positive pressure air outlet area 13 without being sterilized.

In this embodiment, along the flowing direction of the airflow, the downstream longitudinal sectional area of each flow guide groove 52 is smaller than the upstream longitudinal sectional area, that is, the inlet of each flow guide groove 52 is large and the outlet thereof is small. Thus, when the air flow moves in the guiding groove 52, an air flow with a certain pressure is formed, namely, the air flow is pressurized, and the air flow can move towards the positive pressure air outlet area 13 in a one-way manner.

The guide plate 5 is also provided with three grooves 53 corresponding to the positive pressure air outlet area 13, the grooves 53 are communicated with the accommodating groove 51, and the wind power components 3 are arranged in the grooves 53 along the left and right directions, so that the grooves 53 correspond to the positive pressure air outlet area 13. Not only does 3 wind-force components 3 guarantee wind-force, also make casing 1 need not do too thickly, otherwise only have one wind-force component 3, in order to reach required power, wind-force component 3's volume can be great, also needs great holding wind-force component 3's space in the casing 1. The receiving groove 51, the guide groove 52, and the groove 53 of the guide plate 5 may or may not penetrate the wall thickness of the guide plate 5.

Certainly, the number of the wind power assemblies 3 is not limited to three, and the wind power assemblies 3 are not limited to be arranged at the positive pressure air outlet area 13, and can also be arranged at other positions of the cavity 11, but the air draft and air supply effects at the positive pressure air outlet area 13 are better.

In this embodiment, the housing 1 is flat, has a thickness of less than 25mm, is small in size and convenient to carry, and can be easily placed on various table tops and chair backs, so as to be convenient for users to use. The casing 1 is formed by covering an upper cover 15 and a base 16, the upper cover 15 and the base 16 are covered and fixed to form the cavity 11, and the filter piece 2, the wind power assembly 3 and the like in the casing 1 are conveniently maintained and replaced through the split design.

The working principle of the purification device of the embodiment is as follows: the mouth and nose part of a user is adjacent to the positive pressure air outlet area 13, under the action of the wind power assembly 3, airflow enters from the negative pressure air inlet area 12 and forms a negative pressure area at the negative pressure air inlet area 12, and flows out from the positive pressure air outlet area 13 after being processed by the filter element 2 and the sterilization assembly 4, and the airflow direction is shown by a dotted arrow in fig. 4; when the outside air reaches the vicinity of the protected person, because the areas far away from the protected person are negative pressure areas, the air is firstly sucked into the cavity 11 in the shell 1, and is sprayed out from the positive pressure air outlet area 13 to the vicinity of the nose of the protected person after being filtered and sterilized in the cavity 11, so that the protected person always breathes clean air; in addition, the spray exhaled by the protected person can enter the cavity 11 of the shell 1 under the action of negative pressure, so that the environment is prevented from being polluted by viruses and bacteria exhaled by the protected person.

In addition, in order to improve the automation of the purification apparatus, a controller 6, such as a microcomputer controller, is disposed in the storage tank 51. The wind power component 3 is provided with a wind power component switch which can open and close the wind power component and adjust the wind power, the sterilization component 4 is provided with a control switch which controls whether the deep ultraviolet ray or the anion generator works, and the wind power component switch and the control switch are both electrically connected with the output end of the controller.

Example 2

Example 2 differs from example 1 in that: the number of the positive pressure air outlet areas 13 is two, and each positive pressure air outlet area 13 corresponds to the negative pressure air inlet area 12 shaped like a Chinese character hui.

As shown in fig. 5 and 6, the two regional air purification devices are provided, the two regional air purification devices are integrally formed on the casing 1, the cavities 11 in the two casings 1 are communicated with each other and are arranged in a mirror symmetry manner, the cavities are not communicated with each other, the top wall of the casing 1 is provided with two positive pressure air outlet areas 13 and two negative pressure air inlet areas 12 in a mirror symmetry manner, the wind power assembly 3 and the filter element 2 in the cavity 11 are also arranged in a mirror symmetry manner, so that the two users are respectively arranged on two sides of the casing 1, and each person uses one positive pressure air purification area.

Of course, as shown in fig. 7, there may be more than two positive pressure air outlet areas 13, and each of the positive pressure air outlet areas 13 is partially or completely surrounded by one or more negative pressure air inlet areas 12.

This technical staff can be in the utility model discloses a simple technical combination just can realize in the principle within range, therefore the simple improvement of making also should be regarded as within the scope of protection of the utility model.

Claims

1. A regional air purification device comprises

The air conditioner comprises a shell (1), wherein a hollow cavity (11) is formed inside the shell (1), and a negative pressure air inlet area (12) and a positive pressure air outlet area (13) which are in fluid communication with the cavity (11) are formed in the shell (1);

a filter element (2) arranged in the chamber (11);

the wind power assembly (3) is arranged in the cavity (11) and can draw air from the negative pressure air inlet area (12) and supply air to the positive pressure air outlet area (13);

the air conditioner is characterized in that the area of the negative pressure air inlet area (12) is positioned outside the area of the positive pressure air outlet area (13), so that a negative pressure suction area capable of blocking dust and spray is promoted to be formed.

2. The zone air purification apparatus according to claim 1, wherein: negative pressure air inlet district (12) and malleation air-out district (13) are located on the same lateral wall of casing (1), just malleation air-out district (13) are at least local enclosed in the negative pressure suction area that negative pressure air inlet district (12) department formed.

3. The zone air purification apparatus according to claim 2, wherein: the negative pressure air inlet area (12) is partially or completely annularly surrounded relative to the positive pressure air outlet area (13), so that a partial or complete annular air flow is formed on the periphery of the positive pressure air outlet area (13).

4. The zone air purification apparatus according to claim 1, wherein: an isolation area (14) is arranged between the negative pressure air inlet area (12) and the positive pressure air outlet area (13).

5. The zone air purification apparatus according to claim 1, wherein: the area of the negative pressure air inlet area (12) is 2-100 times that of the positive pressure air outlet area (13).

6. The regional air purification device according to any one of claims 1 to 5, wherein: the chamber (11) is internally provided with a sterilization assembly (4) positioned on the airflow flow path.

7. The zone air purification apparatus according to claim 6, wherein: the filter piece (2) is arranged along the distribution area of the negative pressure air inlet area (12), is positioned at the negative pressure air inlet area (12), and is positioned at the downstream of the filter piece (2) along the airflow flow path of the filter piece (4).

8. The zone air purification apparatus according to claim 7, wherein: be equipped with in cavity (11) and filter guide plate (5) of piece (2) terminal surface laminating of negative pressure air inlet district (12) dorsad, filter piece (2) and distribute along the periphery of guide plate (5), storage tank (51) in supplying to disinfect subassembly (4) are arranged in are seted up to the adjacent central part of guide plate (5), offer on guide plate (5) from its periphery guide gutter (52) that extend towards storage tank (51) and be linked together with storage tank (51).

9. The zone air purification apparatus according to claim 8, wherein: the guide grooves (52) are distributed in a scattering manner by taking the accommodating groove (51) as a center.

10. The zone air purification apparatus according to claim 8, wherein: the longitudinal cross-sectional area of the downstream of each flow guide groove (52) is smaller than the longitudinal cross-sectional area of the upstream along the flowing direction of the airflow.

11. The regional air purification device according to any one of claims 1 to 5, wherein: at least one positive pressure air outlet area (13) is arranged.

12. The zone air purification apparatus according to claim 11, wherein: each positive pressure air outlet area (13) is partially or completely surrounded by one or more negative pressure air inlet areas (12).