CN111888679A

CN111888679A - Sterilizing device

Info

Publication number: CN111888679A
Application number: CN202010865241.8A
Authority: CN
Inventors: 李创杰; 龚禹; 朱汉源; 黄斌; 招白鹭; 李松; 杨期鑫
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-25
Filing date: 2020-08-25
Publication date: 2020-11-06

Abstract

The invention discloses a sterilizing device which comprises a shell, an air suction inlet, an air expiration outlet, an air vent, an ultraviolet luminous body, a filter body and an ultraviolet reflecting layer. The interior of the shell is provided with a cavity; the air suction inlet is arranged at one end of the shell; the expiration air outlet is arranged at the other end of the shell; the vent is arranged in the middle of the shell and communicated with the cavity; the ultraviolet luminous body is arranged in the cavity; the filter body is arranged in the cavity and is positioned among the air suction inlet, the air expiration outlet, the ultraviolet luminous body and the air vent; the ultraviolet reflecting layer is uniformly coated on the inner wall of the shell. Therefore, the functions of separating the breathing and inhaling channels and killing the breathing and inhaling bidirectionally are realized. The sterilizing device can be used for a human body breathing protection device, and can realize the bidirectional sterilizing function inside and outside the filter body through the ultraviolet luminous body and the ultraviolet reflecting layer coated on the inner wall of the shell.

Description

Sterilizing device

Technical Field

The invention relates to the field of human body respiration protection and filtration, in particular to a sterilization device with human body respiration protection, filtration, sterilization, drying, sterilization and repeated use.

Background

At present, in an air environment with viruses and bacteria, respiratory protection and filtration products used by people are divided into a barrier type internal circulation product and a full-closed type internal circulation product, such as a common disposable medical mask, N95, KN95, N99, KN99, full-closed type internal circulation protective clothing and the like.

The existing breathing protection filtering device can not be repeatedly used, is mostly a disposable product for multiple times, has no bidirectional virus and bacteria killing function when the airflow enters and exits in the process of breathing air by a human body, is relatively poor in comfort, influences normal conversation and communication of personnel, can cause the stuffiness and unsmooth breathing of the human body after long-time use, has more moisture on the device, and has the problems of short service time, frequent replacement, higher application cost, easy biochemical pollution and the like. In particular, the use cost of professional respiratory protection filter devices such as protective masks with replaceable filter elements, fully-enclosed internal circulation protective clothing and the like is unacceptable to the ordinary people.

If the breathing sterilization device can be developed and researched, the breathing sterilization device is mainly used for solving the problems that the existing breathing protection filtering device cannot be repeatedly used, the cost of virus and bacteria killing in two directions by airflow during the breathing of a human body is high, the service cycle is short, the filter element is frequently replaced, the comfort is poor, the breathing is not smooth, the normal communication conversation of personnel is influenced, water and gas are condensed, biochemical pollution is easily caused, and the like.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Disclosure of Invention

The invention aims to provide a sterilizing device which is used for a human body breathing protection device and can realize the bidirectional sterilizing function inside and outside a filter body through an ultraviolet luminous body and an ultraviolet reflecting layer coated on the inner wall of a shell.

In order to achieve the purpose, the invention provides a sterilizing device which comprises a shell, an air suction inlet, an air outlet, an air vent, an ultraviolet luminous body, a filter body and an ultraviolet reflecting layer. The interior of the shell is provided with a cavity; the air suction inlet is arranged at one end of the shell; the expiration air outlet is arranged at the other end of the shell; the vent is arranged in the middle of the shell and communicated with the cavity; the ultraviolet luminous body is arranged in the cavity; the filter body is arranged in the cavity and is positioned among the air suction inlet, the air expiration outlet, the ultraviolet luminous body and the air vent; the ultraviolet reflecting layer is uniformly coated on the inner wall of the shell.

In a preferred embodiment, the killing device further comprises an air passage partition plate which is arranged in the middle of the cavity and divides the cavity into two mutually-communicated inhalation cavities and exhalation cavities, and the air passage partition plate extends into the air vent and divides the air vent into two mutually-communicated inhalation air outlets and exhalation air inlets.

In a preferred embodiment, the inhalation air inlet, the ultraviolet light emitting body, the filter body and the inhalation air outlet form an inhalation channel, the exhalation air outlet, the ultraviolet light emitting body, the filter body and the exhalation air inlet form an exhalation channel, and the inhalation channel and the exhalation channel are not communicated with each other.

In a preferred embodiment, the ultraviolet light emitting body is at least one ultraviolet lamp tube, a plurality of ultraviolet lamp beads or an ultraviolet lamp panel.

In a preferred embodiment, the killing apparatus further comprises an ultraviolet shielding structure respectively disposed at the inhalation air inlet, the inhalation air outlet, the exhalation air inlet, and the exhalation air outlet.

In a preferred embodiment, the killing device further comprises a support body disposed inside the cavity, and the support body is used for supporting the ultraviolet light emitter and the filter body.

In a preferred embodiment, the killing device further comprises a housing disposed on the housing and located at two sides of the vent, and the housing has an accommodating space therein.

In a preferred embodiment, the killing device further comprises a battery and a circuit board, which are disposed in the accommodating space.

Compared with the prior art, the sterilizing device has the following beneficial effects: 1. the ultraviolet ray luminous body and the ultraviolet ray reflecting layer coated on the inner wall of the shell can realize the bidirectional sterilizing function inside and outside the filter body; 2. all accessories and materials can be put into an ultraviolet charging disinfection cabinet for disinfection, a forced ventilation structure (such as a fan) rotates reversely during charging, viruses and bacteria killed in the cavity of the shell are discharged and enter the disinfection cabinet, and the device is not influenced when being repeatedly used; 3. in the using process, substances such as dust, viruses, bacteria and the like are adsorbed on the surface of the filter body (such as filter cotton), so that static electricity is generated by friction with fibers on the filter body (such as filter cotton), the static electricity quantity and adsorption of the filter body (such as filter cotton) are kept, and the replacement period of the filter body (such as filter cotton) is delayed; 4. the separation of the inspiration channel and the expiration channel can reduce the problems of sultriness and suffocation caused by temperature rise when the human body exhales; 5. the moisture exhaled by the human body in the shell cavity is evaporated out of the shell cavity through the exhalation air outlet by the heat emitted by the ultraviolet luminous body (such as an ultraviolet lamp tube); 6. the outermost ends of the air suction inlet, the air suction outlet, the air expiration inlet and the air expiration outlet are also provided with ultraviolet shielding structures, so that ultraviolet rays are prevented from leaking outside the device or directly irradiating the face or the nasal cavity of a person.

Drawings

FIG. 1 is a schematic sectional front view of a killing apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic top view of a killing apparatus according to an embodiment of the present invention;

FIG. 3 is a schematic view of the airway flow of a killing apparatus according to an embodiment of the present invention;

FIG. 4 is a schematic side view of a killing apparatus according to an embodiment of the present invention;

FIG. 5 is a schematic cross-sectional side view of a killing device according to an embodiment of the present invention;

FIG. 6 is a schematic sectional front view of a killing apparatus according to another embodiment of the present invention;

fig. 7 is a view from direction a of fig. 5.

Description of the main reference numerals:

1-ultraviolet shielding structure, 2-forced ventilation structure, 3-support body, 4-filter body, 5-ultraviolet luminous body, 6-battery, 7-circuit board, 8-inspiration air outlet, 9-expiration air inlet, 10-air flue baffle, 11-shell, 12-inspiration air inlet, 13-expiration air outlet, 14-shell, 15-ventilation opening, 16-fan gear modulation switch, 17-power gear modulation switch, 18-display module, 19-vibrating diaphragm/loudspeaker and 20-charging interface.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.

Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.

As shown in fig. 1 to 4, a sterilizer according to a preferred embodiment of the present invention includes a housing 11, an inhalation air inlet 12, an exhalation air outlet 13, a vent 15, an airway spacer 10, an ultraviolet ray emitting body 5, a filter body 4, and an ultraviolet ray reflecting layer.

Referring to fig. 1, in some embodiments, the inside of the housing 11 has a cavity, and the housing 11 of the embodiment is cylindrical, but the invention is not limited thereto. An intake air port 12 is provided at one end of the housing 11. An exhalation outlet port 13 is provided at the other end of the housing 11. The vent 15 is provided in the middle of the housing 11 and communicates with the cavity. The air channel partition plate 10 is arranged in the middle of the cavity and divides the cavity into an inhalation cavity and an exhalation cavity which are not communicated with each other, and meanwhile, the air channel partition plate 10 extends into the air vent 15 and divides the air vent into an inhalation air outlet 8 and an exhalation air inlet 9 which are not communicated with each other. The ultraviolet light emitter 5 is disposed in the cavity through the air duct partition 10, and the present embodiment uses an ultraviolet light tube, but the present invention is not limited thereto. The filter body 4 is respectively arranged in the inspiration cavity and the expiration cavity, and the filter body 4 is positioned among the inspiration air inlet 12, the ultraviolet luminous body 5 and the inspiration air outlet 8, and among the expiration air outlet 13, the ultraviolet luminous body 5 and the expiration air inlet 9. The ultraviolet reflecting layer is uniformly coated on the inner wall of the case 11. The ultraviolet reflecting layer can reflect the ultraviolet rays penetrating through the filter 4 back to kill bacteria and viruses adsorbed on the outside of the filter 4.

Referring to fig. 3, in some embodiments, the inhalation air inlet 12, the uv light emitter 5, the filter 4 and the inhalation air outlet 8 form an inhalation channel, the exhalation air outlet 13, the uv light emitter 5, the filter 4 and the exhalation air inlet 9 form an exhalation channel, and the inhalation channel and the exhalation channel are not communicated with each other.

In some embodiments, the filter body 4 is a filter material of grade N95 or higher, such as but not limited to filter cotton.

In some embodiments, the killing device further comprises a forced draft structure 2 disposed at the suction inlet 12, and the forced draft structure 2 may be, but is not limited to, a fan. The forced air ventilation structure 2 can also be arranged at the exhalation air outlet 13 as well.

In some embodiments, the killing apparatus further comprises one-way ventilation structures disposed at the inhalation air inlet 12, the inhalation air outlet 8, and the exhalation air inlet 9, the exhalation air outlet 13, respectively. The one-way vent structure may employ, but is not limited to, a one-way valve. The one-way ventilation structure provided at the inhalation air inlet 12 and the inhalation air outlet 8 is opposite to the ventilation direction of the one-way ventilation structure provided at the exhalation air inlet 9 and the exhalation air outlet 13. That is, during inhalation, the one-way valve provided on the inhalation passage is opened and the one-way valve provided on the exhalation passage is closed, whereas during exhalation, the one-way valve provided on the exhalation passage is opened and the one-way valve provided on the inhalation passage is closed.

Referring again to fig. 1, in some embodiments, the killing apparatus further includes an ultraviolet shielding structure 1 disposed at the inhalation air inlet 12, the inhalation air outlet 8, the exhalation air inlet 9, and the exhalation air outlet 13, respectively, for preventing ultraviolet rays from leaking out of the apparatus or directly irradiating the face or nasal cavity of a person.

In some embodiments, the killing device further comprises a support body 3 disposed inside the cavity, and the support body 3 is disposed at two ends of the uv light emitting body 5 and the filter body 4 for supporting. Either the one-way valve or the fan member may be provided on the support body 3. Meanwhile, the ultraviolet luminous body 5, the filter body 4 and the support body 3 are in easily-detachable sealing connection so as to be convenient to replace or sterilize and the like.

Referring to fig. 1, 4 and 5, in some embodiments, the killing apparatus further includes a housing 14 disposed on the housing 11, the housing 14 is disposed at two sides of the vent 15 or disposed around the vent 15, and the housing 14 has a receiving space therein. The accommodating space is provided with components such as a battery 6 and a circuit board 7.

As shown in fig. 7, in some embodiments, the killing apparatus further includes a control circuit, a charging interface 20 (any interface such as USB \ TYPE-C \ microsub), a communication module, a display module 18, a diaphragm/speaker 19, a forced ventilation gear controller (a fan gear modulation switch 16), and a power controller (a power gear modulation switch 17). The display device can display the service time, the service time of the ultraviolet lamp tube, the service time of the filter cotton, the electric quantity, the service time of the fan, the fault condition of elements and the service condition of non-original fittings. If electronic components of the device are damaged, the device can still provide a mask protection effect of more than N95 level to protect human breathing.

In some embodiments, the temperature generated by the uv light emitter 5 (e.g., uv lamp) used in the present device is not high enough to prevent moisture deposition, which can increase the temperature safety controlled heat generator assisted dehumidification. The heat generated by the heating element does not influence the normal work of other parts, and the maximum temperature is lower than 55 ℃. All accessories and materials in the respiratory protection filtering device can be placed into the ultraviolet charging disinfection cabinet for disinfection, the one-way valve is detached during charging, the fan rotates reversely, viruses and bacteria killed in the shell 14 are discharged and enter the disinfection cabinet, and the repeated use of the device is not affected.

As shown in fig. 6, in some embodiments, the filter 4 may not be a cylinder as shown in the previous embodiment, and the ultraviolet light emitter 5 is integrally disposed in the filter 4. The structure may be an arc-shaped structure or a flat plate-mounted structure provided between the air intake port 12, the ultraviolet light emitter 5, and the air intake outlet 8, and between the air exhaust outlet 13, the ultraviolet light emitter 5, and the air exhaust port 9. This embodiment is more targeted and saves material because the filter body 4, which is generally located close to the inhalation air outlet 8 and the exhalation air inlet 9, is most likely to retain most dust and viruses due to the air flow characteristics of inhalation and exhalation.

In some embodiments, each component of the sterilizing device disclosed by the invention is in a modular design capable of being disassembled quickly, so that the replacement of the component or the sterilization is convenient.

In some embodiments, the working principle of the killing device of the present invention is as follows:

as shown in fig. 3, the air flow enters through the inhalation air inlet 12 and finally exits through the exhalation air outlet 13. And one-way valves are arranged at the positions of the air inflow and outflow of the air outlet 8, the air outflow inlet 9, the air inflow inlet 12 and the air outflow outlet 13, so that the air flows in and out in the cavity of the shell 11 according to a specified path. The air suction channel and the air expiration channel are separated by the air passage partition plate 10, and are filtered by the filter body 4 (such as filter cotton which adopts standard filtering materials above N95), the inner wall of the cavity of the shell 11 is coated with an ultraviolet reflecting layer, the ultraviolet luminous body 5 (such as an ultraviolet lamp tube) and the forced ventilation structure 2 (such as a fan or an air pump) are arranged in the cavity of the shell 11, the ultraviolet luminous body 5 (such as the ultraviolet lamp tube) is fixed by the supporting body 3, and the filter body 4 (such as the filter cotton) surrounds the ultraviolet luminous body 5 (such as the ultraviolet lamp tube), so that the filter body 4 (such as the filter cotton) can be irradiated in all directions. When the air purifier is used, when external air enters the area of the air suction air outlet 8 from the air suction air inlet 12, because viruses and bacteria blocked by the filter body 4 (such as filter cotton) are blocked at one side close to the ultraviolet luminous body 5 (such as an ultraviolet lamp tube), namely the inner side of the filter body 4 (such as filter cotton), the ultraviolet luminous body 5 (such as an ultraviolet lamp tube) has the function of killing the viruses and the bacteria, the viruses and the bacteria at the inner side of the filter body 4 (such as filter cotton) can be killed in a short time, and the viruses and the bacteria at the outer side of the filter body 4 (such as filter cotton) can be killed due to the transmission effect of ultraviolet rays and the reflection coating of the inner wall of the cavity of the shell 11. The air outlet 8 outputs filtered air for human body due to positive wind pressure of the forced ventilation structure 2 (such as a fan or an air pump), and the air with higher temperature and moisture exhaled by human body is discharged into the area of the air inlet 9 due to positive wind pressure, so as to ensure that the temperature of the air in the air outlet 8 is not affected by the exhaled air of human body. If the human body exhaled air carries viruses and bacteria, the viruses and the bacteria are blocked by the filter body 4 (such as filter cotton) and are killed based on the same principle. The ultraviolet luminous body 5 (such as an ultraviolet lamp tube) and the forced ventilation structure 2 (such as a fan or an air pump) are normally opened when being electrified, the heat of the ultraviolet luminous body 5 (such as the ultraviolet lamp tube) and the rapid airflow generated by the forced ventilation structure 2 (such as the fan or the air pump) are utilized to ensure that the airflow and the filter body 4 (such as filter cotton) are dry, simultaneously, the airflow, the virus and bacteria in the ultraviolet irradiation range of the inner wall of the cavity of the shell 11, the filter body 4 (such as the filter cotton) and the forced ventilation structure 2 (such as the fan or the air pump) and the like are killed, the breathing safety of a human body is ensured, and finally, the clean gas exhaled by the human body is exhausted from the exhalation. The whole sterilizing device does not transmit ultraviolet rays outwards, and the ultraviolet rays do not leak when gas enters and exits. The sterilization device is characterized in that the battery 6 is placed at two sides of the air suction outlet 8 and the air expiration inlet 9 for reasonably utilizing space, and the sterilization device is easy to replace at the later stage.

In summary, the killing device of the present invention has the following advantages: 1. all accessories and materials can be put into an ultraviolet charging disinfection cabinet for disinfection, a forced ventilation structure (such as a fan) rotates reversely during charging, viruses and bacteria killed in the cavity of the shell are discharged and enter the disinfection cabinet, and the device is not influenced when being repeatedly used; 2. the forced ventilation structure (such as a fan) enables air flow to keep the flow direction of an air suction inlet, an air suction outlet pipeline, an air suction outlet, an air expiration inlet and an air expiration outlet, wherein dust, viruses and bacteria are blocked by a filter body (such as filter cotton) with the grade above N95, and an ultraviolet light emitting body (such as an ultraviolet light tube) can kill the viruses and bacteria blocked in the surface, the air suction channel and the air expiration channel area by the filter body (such as the filter cotton) in a two-way mode; 3. during the use process, substances such as dust, viruses, bacteria and the like are adsorbed on the surface of the filter body (such as filter cotton), so that the electrostatic adsorption effect is relatively weakened, the forced ventilation structure (such as a fan) is normally opened to enable airflow to rapidly pass through the filter body (such as filter cotton) and rub with fibers on the filter body (such as filter cotton) to generate static electricity, the static electricity quantity and the adsorption effect of the filter body (such as filter cotton) are kept, and the replacement period of the filter body (such as filter cotton) is delayed; 4. the separation of the inspiration channel and the expiration channel can reduce the problems of sultriness and suffocation caused by temperature rise when the human body exhales; 5. the moisture exhaled by the human body in the shell cavity is evaporated out of the shell cavity through the exhalation air outlet by the heat emitted by the ultraviolet luminous body (such as an ultraviolet lamp tube); 6. the gear controller arranged in the circuit board 7 can provide comfortable air flow for human body breathing by controlling a forced ventilation structure (such as a fan); 7. in order to prevent the respiratory gas of the human body from being polluted, one-way ventilation structures (such as one-way valves) which are convenient to assemble and disassemble are arranged at the air suction inlet, the air suction outlet, the air expiration inlet and the air expiration outlet, and the flow direction of the air flow from the air suction inlet, the air suction outlet, the air expiration inlet and the air expiration outlet is kept; 8. the outermost ends of the air suction inlet, the air suction outlet, the air expiration inlet and the air expiration outlet are also provided with ultraviolet shielding structures, so that ultraviolet rays are prevented from leaking outside the device or directly irradiating the face or the nasal cavity of a person.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims

1. A killing apparatus, comprising:

a housing having a cavity therein;

an intake port provided at one end of the housing;

an exhalation gas outlet provided at the other end of the housing;

the air vent is arranged in the middle of the shell and communicated with the cavity;

an ultraviolet light emitter disposed within the cavity;

the filter body is arranged in the cavity and is positioned among the air suction inlet, the air expiration outlet, the ultraviolet luminous body and the air vent; and

and the ultraviolet reflecting layer is uniformly coated on the inner wall of the shell.

2. A killing apparatus as defined in claim 1, further comprising an airway partition disposed in the middle of the chamber dividing the chamber into two mutually non-communicating inhalation and exhalation chambers, with the airway partition extending into the vent and dividing it into two mutually non-communicating inhalation and exhalation air inlets.

3. A sterilizer as claimed in claim 2, wherein said inhalation air inlet, said ultraviolet light emitter, said filter and said inhalation air outlet constitute an inhalation channel, and said exhalation air outlet, said ultraviolet light emitter, said filter and said exhalation air inlet constitute an exhalation channel, said inhalation channel and said exhalation channel being non-communicable with each other.

4. A killing apparatus as defined in claim 1, wherein said uv light emitter is at least one uv lamp tube, a plurality of uv lamp beads or a uv lamp panel.

5. A killing apparatus according to claim 2, further comprising ultraviolet shielding structures provided at the inhalation air inlet port, the inhalation air outlet port, the exhalation air inlet port, and the exhalation air outlet port, respectively.

6. A killing apparatus as defined in claim 1, further comprising a support body disposed within said chamber, said support body being configured to support said uv light emitter and said filter body.

7. A killing apparatus as defined in claim 1, further comprising a housing disposed on the housing and located at both sides of the air vent, the housing having an accommodating space therein.

8. A killing apparatus as defined in claim 7, further comprising a battery and a circuit board disposed in said housing space.