CN114569747A

CN114569747A - Disinfection device

Info

Publication number: CN114569747A
Application number: CN202011378892.0A
Authority: CN
Inventors: 陈垒; 高东
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2022-06-03

Abstract

The utility model relates to a disinfection device, which comprises a shell, a reflector, a disinfection light emitting device and a fan, wherein the reflector is arranged in the shell and is provided with a first disinfection channel; the reflector has the reflection of light face of structure for annular paraboloid shape, the reflector is provided with disinfection import and the disinfection export that sets up along annular paraboloid's the central axis direction interval, space between disinfection import and the disinfection export is first disinfection passageway, annular paraboloid has primary focus and second focus, disinfection light emission device sets up on the line between primary focus and second focus, and the structure is towards reflection of light face emission, in order to reduce the number of times of the reflection of light process reflection of disinfection light emission device sent.

Description

Disinfection device

Technical Field

The present disclosure relates to the field of disinfection devices, and in particular, to a disinfection device.

Background

Most of the existing disinfection devices in the market at present adopt ultraviolet rays for disinfection and sterilization. Ultraviolet sterilization is to use physical method to generate ultraviolet radiation with different wave bands to damage and destroy the molecular structure of DNA (deoxyribonucleic acid) or RNA (ribonucleic acid) in organism cells of microorganisms (pathogens such as bacteria, viruses, spores and the like), so as to cause death of growing cells and/or death of regenerative cells, change biological activity, and prevent microorganisms from replicating and propagating to achieve the purpose of disinfection and sterilization. However, since the attenuation of the ultraviolet rays in the air is significant with the increase of the distance or the increase of the number of reflections, the conventional ultraviolet ray sterilizing apparatus has a low ultraviolet ray utilization rate.

Disclosure of Invention

The utility model aims at providing a degassing unit can improve the utilization ratio to the ultraviolet ray, improves disinfection effect.

In order to achieve the above object, the present disclosure provides a sterilization device, which includes a housing, a reflector, a sterilization light emitting device, and a fan, wherein the reflector is disposed in the housing and has a first sterilization passage, the housing is provided with an air inlet and an air outlet, the air inlet and the first sterilization passage are respectively communicated with the outside, the air outlet is sequentially communicated with the air inlet, and the fan is disposed between the air inlet and the air outlet to suck an air flow from the air inlet into the first sterilization passage and discharge the air flow from the air outlet;

the light reflecting shade is provided with a light reflecting surface which is constructed into a shape of an annular paraboloid, the light reflecting shade is provided with a disinfection inlet and a disinfection outlet which are arranged at intervals along the central axis direction of the annular paraboloid, the space between the disinfection inlet and the disinfection outlet is a first disinfection channel, the annular paraboloid is provided with a first focus and a second focus, and the disinfection light emitting device is arranged on a connecting line between the first focus and the second focus and is constructed to emit light towards the light reflecting surface so as to reduce the times of reflection of the light emitted by the disinfection light emitting device through the light reflecting surface.

Optionally, a longitudinal section of the circular paraboloid along a central axis direction thereof has a first parabolic segment and a second parabolic segment, a focus of the first parabolic segment is the first focus, a focus of the second parabolic segment is the second focus, the first parabolic segment and the second parabolic segment are symmetrically arranged with respect to the central axis, and the sterilizing light emitting device has a light emitting surface which is located on a connecting line of the first focus and the second focus and is perpendicular to the central axis.

Optionally, a first parabola in which the first parabola segment is located has a first symmetry axis, a second parabola in which the second parabola segment is located has a second symmetry axis, the first symmetry axis and the second symmetry axis respectively have an included angle α with the central axis, and the included angle α is 0-30 °.

Optionally, the first focus is located on a second parabola where the second parabolic line segment is located, and the second focus is located on a first parabola where the first parabolic line segment is located.

Optionally, the sterilizing light emitting device is disposed at a side of the sterilizing outlet away from the sterilizing inlet, the maximum light irradiation cone of the disinfection light emitting device and the reflecting surface are provided with an intersecting surface vertical to the central axis, on the longitudinal section, an intersection point of the intersecting surface and the first parabolic segment is an intersection point C, an intersection point of a straight line passing through the intersection point C and parallel to the first symmetry axis of the first parabola and the second parabola is an intersection point G, on the longitudinal section, an intersection point of a straight line passing through the second focal point and parallel to the first axis of symmetry of the first parabola and the second parabola is an intersection point P, the end surface where the disinfection inlet is located between a first plane perpendicular to the central axis and passing through the intersection point P and a second plane perpendicular to the central axis and passing through the intersection point G.

Optionally, the disinfection light emitting device is disposed on a side of the disinfection outlet away from the disinfection inlet, an intersection plane perpendicular to the central axis is disposed between the disinfection outlet and the reflective surface, on the longitudinal cross section, an intersection point of the intersection plane and a first parabola where the first parabola is located is an intersection point C, and an end face where the disinfection outlet is located between a third plane perpendicular to the central axis and passing through the first focus and the second focus and a fourth plane perpendicular to the central axis and passing through the intersection point C.

Optionally, the disinfection apparatus further comprises a light-gathering member fixed in the housing, the light-reflecting shade is spaced from the light-gathering member, the light-gathering member has a light-gathering surface for emitting light, the light-gathering surface is configured in a paraboloid shape, an opening of the paraboloid faces the disinfection light-emitting apparatus, an axis of the paraboloid is parallel to the central axis, so that light rays irradiated to the paraboloid in a direction parallel to the central axis can be focused to a third focus, and the third focus is located in an airflow channel between the air inlet and the air outlet.

Optionally, the casing is including first casing and the second casing that combines together, fan, reflector and disinfection light emitter are fixed in the first casing, be provided with the disinfection passageway of second in the second casing, the disinfection passageway of second with the coaxial setting of first disinfection passageway, the interval is equipped with a plurality ofly on the lateral wall of second casing the air intake, the air intake passes through the disinfection passageway of second with first disinfection passageway intercommunication, spotlight spare is fixed in keep away from in the second casing the one end of first casing.

Optionally, the sterilizing light emitting device comprises a light emitting lamp group for emitting light, and the distance between the first focal point and the second focal point is equal to or greater than the length of the light emitting lamp group.

Optionally, the light emitting lamp set comprises a circuit board and a plurality of LED lamp beads, the circuit board is electrically connected with the light emitting lamp set, the LED lamp beads are used for emitting ultraviolet rays, the LED lamp beads are fixed on the circuit board, the surface of each LED lamp bead, which is arranged on the circuit board, is a light emitting surface, and the light emitting surface is located in the plane of the central axis and passes through the first focus and is perpendicular to the first focus.

Optionally, the disinfection device further comprises a filter, the housing comprises a first housing and a second housing which are combined, the fan, the reflector and the disinfection light emitting device are fixed in the first housing, the filter is arranged in the second housing and provided with a second disinfection channel, a plurality of air inlets are arranged on the side wall of the second housing at intervals, and the air inlets are communicated with the first disinfection channel through the second disinfection channel.

Optionally, along the flowing direction of the air current, the reflector, the disinfection light emitting device and the fan are sequentially arranged, the reflector is fixed at one end of the first shell, the air outlet is arranged at the other end of the first shell, and the air outlet and the fan are arranged at intervals.

Optionally, the reflector includes flange portion, erection column and has the reflection of light portion of reflection of light face, the flange portion is fixed in the casing, the disinfection import with the disinfection export set up respectively in the both ends of reflection of light portion, first disinfection passageway runs through reflection of light portion with the flange portion, the flange centers on reflection of light portion is provided with the radial outside protrusion setting of one end of disinfection import, the erection column is fixed in the flange portion is and is followed the disinfection import orientation the disinfection export extends, disinfection light emission device is fixed in the erection column.

The technical scheme can at least achieve the following technical effects:

this degassing unit can reduce the number of times that same root disinfection light is reflected by the reflection of light face to reduce the route that disinfection light launches the route, thereby the decay when having reduced the first disinfection passageway in route of this disinfection light, increased its disinfection and sterilization effect to the air current. In the whole disinfection and sterilization process of the disinfection device, the disinfection light cannot leak to the outside, the disinfection can be carried out on the personnel activity site, and the applicability is stronger. In addition, the heat that the mobile air current can produce the during operation of disinfection light emitter is taken away, prolongs disinfection light emitter's life-span, also can reduce disinfection light emitter's light decay simultaneously.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a schematic perspective view of a disinfection device according to an embodiment of the present disclosure;

FIG. 2 is an exploded view of a sterilization device according to an embodiment of the present disclosure;

FIG. 3 is a schematic longitudinal cross-sectional view of a disinfection device of an embodiment of the disinfection device of the present disclosure;

FIG. 4 is a schematic diagram of a longitudinal cross section of an annular paraboloid of a reflector of one embodiment of the present disclosure, showing how the annular paraboloid is formed;

FIG. 5 is a schematic diagram of a longitudinal cross-section of the toroidal paraboloid of a reflector of one embodiment of the present disclosure, showing the location of the sterilization inlet defining the reflector;

FIG. 6 is a schematic diagram of a longitudinal cross-section of the toroidal paraboloid of a reflector of one embodiment of the present disclosure illustrating the reflected path of some of the disinfecting light rays;

FIG. 7 is a schematic diagram of a longitudinal cross-section of the annular parabola of the reflector of one embodiment of the present disclosure illustrating the location of the sterilization outlet defining the reflector.

FIG. 8 is a schematic diagram of a longitudinal cross-section of the annular paraboloid and concentrator of one embodiment of the reflector of the present disclosure illustrating the reflected path of the disinfecting light parallel to the central axis.

Description of the reference numerals

100-a disinfection device; 10-a housing; 11-a first housing; 12-a second housing; 121-a second disinfection channel 121; 13-air inlet; 14-air outlet; 15-front cover; 20-a reflector; 21-a first disinfection channel 21; 22-a light-reflecting surface; 221-a first parabolic segment; 222-a second parabolic segment; 23-a disinfection inlet; 24-a disinfection outlet; 25-a flange portion; 26-mounting posts; 27-a light-reflecting portion; 30-a sterilizing light emitting device; 31-a circuit board; 32-a light emitting assembly 32; 40-a fan; 50-a light-concentrating member; 60-a filter; y-center axis; 1' -a first axis of symmetry; 2' -a second axis of symmetry; f1 — first focus; f2 — second focus; f3-third focus; 71-start switch; 72-Power interface.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, the terms "inside" and "outside" refer to the inside and the outside of the profile of the relevant component, unless otherwise specified. In addition, the terms "first", "second", and the like used in the embodiments of the present disclosure are for distinguishing one element from another, and have no order or importance.

In order to improve the utilization rate of ultraviolet rays and the sterilization effect, in the present disclosure, there is provided a sterilization apparatus 100, the sterilization apparatus 100 including a housing 10, a reflector 20, a sterilization light emitting device 30, and a fan 40. The reflector 20 is disposed in the housing 10 and has a first disinfection channel 21, the housing 10 is provided with an air inlet 13 and an air outlet 14 respectively communicated with the outside, the air inlet 13, the first disinfection channel 21 and the air outlet 14 are sequentially communicated, and the fan 40 is disposed between the air inlet 13 and the air outlet 14 to suck the air flow from the air inlet 13 into the first disinfection channel 21 and discharge the air flow from the air outlet 14.

The reflector 20 has a reflecting surface 22 configured in the shape of an annular paraboloid, the reflector 20 has a disinfection inlet 23 and a disinfection outlet 24 which are arranged at intervals along the central axis Y direction of the annular paraboloid, and the space between the disinfection inlet 23 and the disinfection outlet 24 is a first disinfection passage 21. The annular paraboloid has a first focal point F1 and a second focal point F2, and the sterilizing light emitting device 30 is disposed on a line connecting the first focal point F1 and the second focal point F2 and is configured to emit light toward the reflecting surface 22 to reduce the number of times the light emitted from the sterilizing light emitting device 30 is reflected by the reflecting surface 22, so that the emitted light can be irradiated onto the reflecting surface 22 and emitted by reflection from the reflecting surface 22.

Since the parabola has optical characteristics, light emitted from the focal point of the parabola is reflected by the parabola and emitted in a direction parallel to the axis of symmetry. Therefore, being disposed on the focal line formed by the first focal point F1 and the second focal point F2 enables as much of the sterilizing light to be emitted from the focal point and the attachment near the focal point, thereby enabling as much of the sterilizing light to be emitted in a direction parallel to the axis of symmetry. The sterilizing light-emitting device 30 has a length and a width, and it is impossible to emit light only from two focal points. When the disinfection light is emitted from the vicinity of the focus onto the reflecting surface 22 at one end of the reflector 20, the disinfection light is reflected in a direction slightly inclined to the symmetry axis of the parabola, so that the disinfection light is emitted toward the other end of the reflector 20 as much as possible, and the number of times that the disinfection light is reflected by the reflecting surface 22 can be reduced as much as possible. Therefore, the number of times that the same disinfection light is reflected by the reflecting surface 22 can be reduced as much as possible, and the path along which the disinfection light is emitted is reduced, so that the attenuation of the disinfection light when the disinfection light passes through the first disinfection passage 21 is reduced, and the disinfection and sterilization effects on the air flow are improved. In the whole disinfection and sterilization process of the disinfection device 100, the disinfection light cannot leak to the outside, and the disinfection can be performed on the personnel activity site, so that the applicability is stronger. In addition, the flowing air current can take away the heat generated when the sterilizing light emitting device 30 works, the service life of the sterilizing light emitting device 30 is prolonged, and meanwhile, the light attenuation of the sterilizing light emitting device 30 can also be reduced.

In the present disclosure, there is no limitation on what kind of the sterilizing light is used, and in one embodiment, the sterilizing light may be ultraviolet light, and in other embodiments, the sterilizing light may also be other optical media such as X-ray, infrared light, and the like, which is not limited by the present disclosure.

No limitation is placed on what parabola is used in the present disclosure to form the annular paraboloid, and in one embodiment, as shown in fig. 3-4, the longitudinal cross-section of the annular paraboloid along its central axis Y has a first parabolic segment 221 and a second parabolic segment 222. The focus of the first parabolic segment 221 is the first focus F1, and the focus of the second parabolic segment 222 is the second focus F2. The first and second

parabolic segments

221 and 222 are symmetrically arranged with respect to the central axis Y. The disinfecting light emitting device 30 has a light emitting surface which is located on a line connecting the first focal point F1 and the second focal point F2 and is perpendicular to the central axis Y.

The sterilizing light emitting device 30 has light emitting lamp groups for emitting sterilizing light, the light emitting lamp groups being disposed on the light emitting surface, and light in the light emitting lamp groups being emitted from the light emitting surface. Since the first parabolic segment 221 and the second parabolic segment 222 are symmetrically arranged, a surface perpendicular to the central axis Y and passing through the first focal point F1 and the second focal point F2 may be referred to as a focal point plane, and the light emitting surface is disposed on the focal point plane, so that as much light as possible is emitted from a position close to the focal point, which further contributes to the sterilizing light being emitted from the first sterilizing passage 21 through only one reflection.

In order to further enable as much of the sterilizing light emitted by the sterilizing light emitter to be emitted through only one emission of the reflective surface 22, in one embodiment of the present disclosure, as shown in fig. 4, the first parabolic line 221 has a first axis of symmetry 1 ', the second parabolic line 222 has a second axis of symmetry 2 ', and the first axis of symmetry 1 ' forms an included angle α with the central axis Y. The included angle alpha is 0-30 degrees. Thus, the reflection of the sterilizing light can be reduced as much as possible, and the first sterilizing space with proper size and shape can be formed. The oblique arrangement of the axes of symmetry of the first and second parabolas helps to cause light rays emanating from between the first and second focal points F1 and F2 to exit the reflector 20 in only one reflection.

In order to achieve that the reflecting surface 22 emits the sterilizing light emitted from different positions of the sterilizing light emitting device 30 through the reflector 20 after only one reflection, as shown in fig. 4, in one embodiment of the present disclosure, the first focus F1 is located on the second parabola where the second parabola segment 222 is located, and the second focus F2 is located on the first parabola where the first parabola segment 221 is located. This makes it possible to enlarge the dimension of the sterilizing light emitting device 30 in the direction perpendicular to the central axis Y as much as possible, and to increase the amount of light emitted.

It is understood that in other embodiments, the first focus F1 may not lie on the second parabola and the first focus F1 may not lie on the first parabola.

In order to clarify the shapes of the first parabolic segment 221 and the second parabolic segment 222 and the relationship between the first focus F1 and the second focus F2, as shown in fig. 4, the first parabola a and the second parabola B are taken as an example for explanation. The first parabola a and the second parabola B are parabolas with the same parameters, which are symmetrical with respect to the Y axis, and have symmetrical axes of 1 and 2, respectively, and focal points of F1 and F2, respectively. The first parabola a is rotated counterclockwise along the focus F1 by an angle a ' to a ' and the symmetry axes 1 to 1 ' form a first symmetry axis 1 ', the new first parabola a ' being over-focused by F2. The second parabola B is rotated clockwise by an angle a to B 'along the focus F2, the axis of symmetry 2 is rotated to 2' forming a second axis of symmetry 2 ', and a new second parabola B' is over-focused by the focus F1. Thus, the first parabolic segment 221 and the second parabolic segment 222 of the circular paraboloid are formed, and the circular paraboloid can be obtained by rotating the first parabolic segment 221 or the second parabolic segment 222 by 360 degrees around the central axis Y.

In order to reduce the number of reflections of the sterilizing light by the reflective surface 22, in one embodiment of the present disclosure, as shown in fig. 5-6, the sterilizing light emitting device 30 is disposed on a side of the sterilizing outlet 24 remote from the sterilizing inlet 23. Alternatively, in other embodiments, the disinfecting light emitting device 30 may be disposed on a side of the disinfecting inlet 23 away from the disinfecting outlet 24. In other words, the reflector 20 together with the disinfecting light emitting means 30 is turned upside down.

The maximum light of the disinfecting light emitting device 30 irradiates the intersection between the vertebral body and the reflecting surface 22, which is perpendicular to the central axis Y. In the longitudinal section, the intersection of the intersection and the first parabolic segment 221 is an intersection C, and the intersection of the intersection and the second parabolic segment 222 is an intersection D. In other words, the light emitted from the sterilizing light emitting device 30 is emitted only from a certain angle between the CDs. An intersection point G is an intersection point of a straight line passing through the intersection point C and parallel to the first axis of symmetry 1 ' of the first parabola a ' and the second parabola B '. The intersection point of a straight line passing through the intersection point D and parallel to the second axis of symmetry 2 ' of the second parabola B ' and the first parabola a ' is the intersection point E.

As shown in fig. 4, in the longitudinal section, an intersection point P of a straight line passing through the second focus F2 and parallel to the first axis of symmetry 1 'of the first parabola a' and the second parabola B 'and an intersection point O of a straight line passing through the first focus F1 and parallel to the second axis of symmetry 2' of the second parabola B 'and the first parabola a' are intersection points. The end surface where the disinfection outlet 24 is located between a first plane perpendicular to the centre axis Y and passing through the point of intersection P and a second plane perpendicular to the centre axis Y and passing through the point of intersection G. The first plane passes through the straight line OP and the second plane passes through the plane EG.

Since the first parabolic segment 221 and the second parabolic segment 222 are symmetrical with respect to the central axis Y, the intersection point G and the intersection point E are symmetrical with respect to the central axis Y, and similarly, the intersection point P and the intersection point O are symmetrical with respect to the central axis Y.

By defining the sterilisation inlet 23 between a first plane passing through the line OP and a second plane passing through the line EG, the number of reflections of the retro-reflective surface 22 against the sterilisation light can be reduced, so that as much sterilisation light as possible is emitted from the reflector 20 only by one reflection of the retro-reflective surface 22. The specific optical principles are described below.

As shown in fig. 5, the light emitting lamp groups in the sterilizing light emitting device 30 are arranged centrally on a straight line F1F2, and the maximum edges of the light emitting lamp groups are respectively a point S and a point Q, and the straight lines 3 and 4 respectively cross the point S and the point Q and define the maximum irradiation angle of the light emitting lamp groups. The straight line 3 intersects the first parabola a 'at point C and the straight line 4 intersects the second parabola B' at point D. The reflection line CG of the straight line F1C intersects the second parabola B 'at a point G, and is parallel to the first axis of symmetry 1' of the first parabola a 'because the light is emitted from the first focus F1 and impinges on the first parabola a'. The reflection line DE of the straight line F2D intersects the parabola a ' at a point E, and is parallel to the axis of symmetry 2 ' because the light is emitted from the second focus F2 and impinges on the second parabola B '. Defining points E and G as the termination points of parabolas A 'and B', respectively, and connecting points E and G form a connecting line EG.

As shown in fig. 6, the light emitted from any point X on the light emitting lamp set in the disinfecting light emitting device 30 is reflected once by a point K1 on the parabolic segment C of the first parabola a 'and then emitted at an angle β with respect to the central axis Y, and similarly, the light may be reflected once by a point K2 on the parabolic segment DG of the parabola B' and then emitted at an angle β with respect to the central axis Y. The point K1 and the point K2 are symmetrically disposed with respect to the central axis Y. As shown by the dashed lines in fig. 6, a light ray emitted from the first focal point F1 is reflected by the point K1 and exits at an angle α with respect to the central axis Y. Similarly, light rays emanating from the second focal point F2 reflect off point K2 and exit at an angle α to the central axis Y. As is evident from the figure, the angle β is smaller than the angle α. By analogy, of the light rays reflected by the parabolic segment CE, at most, the light rays can be reflected to the point G on the parabolic segment DG, and the rest of the light rays are reflected once and then directly emitted from the reflector 20, and all the light rays can be reflected only to the extension line of the parabolic segment EG, and the extension line does not belong to the contour surface of the light reflecting surface 22. Similarly, the light reflected by the parabolic segment DG can be reflected to the point E on the parabolic segment CE at most, and the rest of the light is reflected once and then directly emitted from the reflector 20.

Thus, by defining the sterile inlet 23 between a first plane passing through the line OP and a second plane passing through the line EG, as shown in fig. 5, with the first plane being adjacent the first and second foci F1, F2 relative to the second plane, it can be appreciated from the above reasoning that, since the end face at which the sterile inlet 23 is located is adjacent the first and second foci F1, F2 relative to the line EG, the sterile light can emerge from the reflector 20 after a single reflection by the reflective surface 22, and some of the sterile light emerges directly from the reflector 20 without undergoing reflection by the reflective surface 22, the number of reflections by the reflective surface 22 of the sterile light can be significantly reduced so that as much sterile light emerges from the reflector 20 as possible after only a single reflection by the reflective surface 22.

The position of the sterilizing outlet 24 is not limited in the present disclosure, and as shown in fig. 7, in one embodiment, the sterilizing light emitting device 30 is disposed at a side of the sterilizing outlet 24 away from the sterilizing inlet 23, and the sterilizing light emitting device 30 is disposed near the sterilizing inlet 23. The maximum light of the disinfecting light emitting device 30 irradiates the intersection between the vertebral body and the reflecting surface 22, which is perpendicular to the central axis Y. On the longitudinal section, the intersection point of the intersection surface and the first parabola is an intersection point C, and the intersection point of the intersection surface and the second parabola is an intersection point D. The end surface where the disinfection outlet 24 is located between a third plane perpendicular to the centre axis Y and passing through the first focus F1 and the second focus F2 and a fourth plane perpendicular to the centre axis Y and passing through the intersection point C and the intersection point D.

The terminal surface through inciting somebody to action 24 places of disinfection is injectd between third plane and fourth plane, can make all light that disinfection light emission device 30 sent all shine into reflector 20 to make all light homoenergetic disinfect to the air current that gets into in the reflector 20, can not have the light to expose reflector 20 outward, cause disinfection light's waste. Furthermore, there is a gap between the sterilizing outlet 24 and the sterilizing light-emitting device 30 to allow airflow therethrough.

In the present disclosure, there is no limitation in the size of the sterilizing light-emitting device 30, and in one embodiment of the present disclosure, as shown in fig. 3, the sterilizing light-emitting device 30 includes a light-emitting lamp group for emitting light, and the distance between the first focal point F1 and the second focal point F2 is equal to or greater than the length of the light-emitting lamp group.

Since the distance between the first focal point F1 and the second focal point F2 is equal to or greater than the length of the light emitting lamp group, all the emitted light is located on the focal plane, thereby helping the sterilizing light to be emitted from the first sterilizing tunnel 21 through only one reflection.

In the present disclosure, there is no limitation on what kind of device is used to emit the disinfection light, and in one embodiment, the light emitting lamp set includes a circuit board 31 electrically connected to each other and a plurality of LED lamp beads for emitting ultraviolet rays, the plurality of LED lamp beads are fixed on the circuit board 31, and a surface of the circuit board 31 on which the LED lamp beads are disposed is a light emitting surface which is located in a plane passing through the first focus F1 and the second focus F2 and perpendicular to the central axis Y. Optionally, a power interface 72 electrically connected to the circuit board 31 is disposed on the housing 10, so as to supply power to the LED lamp bead.

A plane passing through the first focal point F1 and the second focal point F2 and perpendicular to the central axis Y is the above-described focal plane. The surface of the circuit board 31 provided with the LED beads is arranged in the focal plane, so that as much light as possible is emitted from a position close to the focal point, thereby contributing to the emission of the sterilizing light from the first sterilizing passage 21 through only one reflection.

In order to increase the utilization rate of the sterilizing light and enable more bacteria to be sterilized per unit time, as shown in fig. 3, the sterilizing device 100 further includes a light-collecting member 50 fixed in the housing 10, the reflector 20 is spaced apart from the light-collecting member 50, the light-collecting member 50 has a light-collecting surface for emitting light, the light-collecting surface is configured in a parabolic shape, an opening of the parabolic surface faces the sterilizing light-emitting device 30, an axis of the parabolic surface is parallel to the central axis Y of the light-reflecting surface 22, so that light irradiated to the parabolic surface in a direction parallel to the central axis Y can be focused to a third focus F3, and the third focus F3 is located in an airflow channel between the air inlet 13 and the air outlet 14. Alternatively, the light gathering member 50 may be configured as a light gathering plate having a plate shape.

Because the light gathering member 50 is provided, the disinfecting light emitted from the disinfecting light emitting device 30 is emitted from the reflector 20 after disinfecting and sterilizing the air flow passing through the first disinfecting passage 21, and then irradiates on the light gathering surface, wherein the disinfecting light parallel to the central axis Y of the light reflecting surface 22 is reflected by the light gathering surface and gathered at the focus of the paraboloid, and the light irradiating the light gathering member 50 at a slightly inclined angle relative to the central axis Y is also reflected to the vicinity of the third focus F3, so that the vicinity of the third focus F3 has the disinfecting light with stronger intensity, thereby effectively disinfecting the air flow passing through the vicinity of the third focus F3. Therefore, by providing the light condensing member 50, the sterilizing light having the intensity attenuated by the light exiting from the reflector 20 can be condensed again, and the intensity of the sterilizing light can be increased, so that the sterilizing light having the attenuated intensity can be effectively utilized for secondary utilization, and the utilization rate of the sterilizing light can be increased. Under the condition of the same disinfection and killing effect, the power requirement on the disinfection light emitting device 30 which emits the disinfection light can be reduced, and the cost of the product is lower.

The arrangement of the housing 10 and the components in the housing 10 is not limited in this disclosure and may be designed according to actual needs. As shown in fig. 2 and 3, the housing 10 includes a first housing 11 and a second housing 12 that are combined, the fan 40, the reflector 20 and the disinfecting light emitting device 30 are fixed in the first housing 11, a second disinfecting passage 121 is provided in the second housing 12, the second disinfecting passage 121 is coaxially disposed with the first disinfecting passage 21, a plurality of air inlets 13 are spaced on a side wall of the second housing 12, the air inlets 13 are communicated with the first disinfecting passage 21 through the second disinfecting passage 121, and the light collecting member 50 is fixed at one end of the second housing 12 that is far away from the first housing 11. The air inlet 13 is arranged on the side wall of the second casing 12, and the light gathering member 50 is arranged at the end of the second casing 12, so that the light gathering member 50 can receive more disinfection light, and the light gathering member 50 does not influence the normal air inlet of the air inlet 13.

Second disinfection passageway 121 and the coaxial setting of first disinfection passageway 21 for the disinfection light that leaves first disinfection passageway 21 can all shine second disinfection passageway 121, moreover, makes in parallel and the reflection direct irradiation of the light of central axis Y do not pass through reflector 20 in first disinfection passageway 21 and the second disinfection passageway 121, thereby can disinfect to the air current of flowing through in the second disinfection passageway 121. The air flow enters the second sterilizing passage 121 from the air inlet 13, is sterilized by the sterilizing light leaving the first sterilizing passage 21, then enters the first sterilizing passage 21, and is sterilized again by the sterilizing light in the first sterilizing passage 21, so that the sterilizing effect of the sterilizing apparatus 100 can be improved.

Offer air intake 13 on the lateral wall of second casing 12, and arrange spotlight piece 50 at the tip of second casing 12, make spotlight piece 50 can not block the normal air inlet of air intake 13, and, can be at disinfection light through first disinfection passageway 21 and second disinfection passageway 121, after disinfecting the air current in these two passageways, shine spotlight piece 50 again, just so can guarantee to try hard only to reflect the gathering to the disinfection light after the intensity decay, and can not reflect the great disinfection light of intensity, effectively increase the utilization ratio to disinfection light.

By dividing the housing 10 into the combined first housing 11 and second housing 12, it is convenient to install the blower 40, the reflecting shade 20 and the sterilizing light emitting device 30 in the first housing 11, and it is also convenient to install the light collecting member 50 in the second housing 12.

It will be appreciated that in other embodiments, the first housing 11 and the second housing 12 may be integrally formed structures, and the fan 40, the reflector 20, the sterilizing light emitting device 30, etc. located therein are installed through openings at both ends of the housing 10.

Optionally, an opening is further disposed at an end of the first housing 11 away from the second housing 12, and the front cover 15 covers the opening. Also, the middle portion of the front cover 15 is provided with a start switch 71 for starting or closing the sterilizing apparatus 100. The start switch 71 is electrically connected to the blower 40 and the sterilizing light emitting device 30, respectively. A plurality of air outlets 14 are provided around the start switch 71.

The specific structure of the housing 10 is not limited in the present disclosure, and in one embodiment of the present disclosure, as shown in fig. 2 to 3, the sterilizing device 100 further includes a filter 60, the housing 10 includes a first housing 11 and a second housing 12 which are combined, the fan 40, the reflector 20 and the sterilizing light emitting device 30 are fixed in the first housing 11, the filter 60 is disposed in the second housing 12 and has a second sterilizing passage 121, a plurality of air inlets 13 are spaced on a side wall of the second housing 12, and the air inlets 13 are communicated with the first sterilizing passage 21 through the second sterilizing passage 121.

Optionally, the filter 60 is configured substantially in the shape of a circular ring, the middle of which is the second disinfection channel 121. The second housing 12 is disposed on the filter 60, a plurality of air inlets 13 are disposed around the outer circumference of the second housing 12, and the bottom of the second housing 12 can be closed by the light-gathering member 50.

Through setting up filter 60, the air current that flows in from air intake 13 passes through filter 60 after, filters dust, particulate matter in the air current in advance, then just can get into second disinfection passageway 121 and first disinfection passageway 21, helps keeping the clean of lamp pearl among the disinfection light emission device 30, increase of service life.

The particular manner of filtering employed by filter 60 is not limiting in this disclosure, and filter 60 may alternatively be a carbon filter 60.

The specific location of the fan 40 is not limited in this disclosure, and in one embodiment, as shown in fig. 3, the reflector 20, the sterilizing light emitting device 30 and the fan 40 are sequentially arranged along the flowing direction of the air flow, the reflector 20 is fixed to one end of the first housing 11, the air outlet 14 is arranged at one end of the first housing 11 far from the reflector 20, and the air outlet 14 is arranged at a distance from the fan 40.

Under the action of the fan 40, the airflow enters the second disinfection channel 121 from the air inlet 13 on the side wall of the second housing 12 after being filtered by the filter 60, is disinfected and sterilized, enters the first disinfection channel 21 of the reflector 20, is disinfected and sterilized, then flows out from the disinfection outlet 24 of the reflector 20, and is discharged from the air outlet 14 through the fan 40.

In one embodiment, the reflector 20 and the light-collecting panel are made of aluminum or an aluminum alloy, and the sterilizing light is ultraviolet light, and the aluminum or the aluminum alloy does not absorb the ultraviolet light, so that the light is less attenuated when the reflecting surface 22 reflects the light.

The specific shape of the reflector 20 is not limited in this disclosure as long as it has a circular paraboloid, and in order to facilitate mounting of the reflector 20 to the housing 10, as shown in fig. 2, the reflector 20 includes a flange portion 25, a mounting post 26, and a light reflecting portion 27 having a light reflecting surface 22. The flange portion 25 is fixed to the housing 10. The sterilizing inlet 23 and the sterilizing outlet 24 are respectively provided at both ends of the light reflecting portion 27. The first disinfection channel 21 extends through the light reflecting portion 27 and the flange portion 25. The flange is provided radially outwardly projecting around the end of the reflector portion 27 provided with the disinfection inlet 23. A mounting post 26 is fixed to the flange portion 25 and extends from the sterilizing inlet 23 towards the sterilizing outlet 24, and a sterilizing light emitting device 30 is fixed to the mounting post 26. One end of the mounting post 26 is fixed to the flange portion 25, and the other end is connected to a sterilizing light emitting device 30.

The reflector 20 may be fixed to the first housing 11 by fixing the flange portion 25 to the first housing 11, hereinafter, by a fastener. The mounting post 26 is secured at one end to the flange and at the other end to a sterilizing light emitting device 30. The sterilizing light-emitting device 30 extends from an end of the mounting post 26 facing the sterilizing outlet 24 and is located on a line connecting the first focal point F1 and the second focal point F2. Because just set up disinfection light emission device 30 in disinfection export 24 departments, the air current can take away the heat on disinfection light emission device 30 when the disinfection export 24 flows through to can prolong disinfection light emission device 30's life-span, the light decay of lamp pearl among the reduction disinfection light emission device 30.

The working process of the disinfection device 100 in the present disclosure is: by connecting the external power source through the power source interface 72, the sterilizing light emitting device 30 is operated by pressing the start switch 71, and the blower 40 is then operated. The air flow enters the second disinfection channel 121 and the first disinfection channel 21 through the filter 60 along the air inlet 13, is sterilized by the disinfection light, continues to flow to the fan 40 along the periphery of the disinfection light emitting device 30 after passing through the reflector 20, and finally flows out of the air outlet 14 on the front cover 15.

The preferred embodiments of the present disclosure are described in detail above with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details in the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims

1. A disinfection device is characterized by comprising a shell (10), a reflector (20), a disinfection light emitting device (30) and a fan (40), wherein the reflector (20) is arranged in the shell (10) and is provided with a first disinfection channel (21), the shell (10) is provided with an air inlet (13) and an air outlet (14) which are respectively communicated with the outside, the air inlet (13), the first disinfection channel (21) and the air outlet (14) are sequentially communicated, and the fan (40) is arranged between the air inlet (13) and the air outlet (14) so as to suck airflow into the first disinfection channel (21) from the air inlet (13) and discharge the airflow from the air outlet (14);

the reflector (20) has a reflecting surface (22) configured into a shape of an annular paraboloid, the reflector (20) is provided with a disinfection inlet (23) and a disinfection outlet (24) which are arranged at intervals along the central axis (Y) direction of the annular paraboloid, the space between the disinfection inlet (23) and the disinfection outlet (24) is the first disinfection passage (21), the annular paraboloid has a first focus (F1) and a second focus (F2), the disinfection light emitting device (30) is arranged on a connecting line between the first focus (F1) and the second focus (F2) and is configured to emit light towards the reflecting surface (22) so as to reduce the number of times of reflection of the light emitted by the disinfection light emitting device (30) through the reflecting surface (22).

2. A disinfection device as claimed in claim 1, wherein a longitudinal section of said circular paraboloid in the direction of its central axis (Y) has a first parabolic segment (221) and a second parabolic segment (222), the focus of said first parabolic segment (221) being said first focus (F1), the focus of said second parabolic segment (222) being said second focus (F2), said first parabolic segment (221) and said second parabolic segment (222) being arranged symmetrically with respect to said central axis (Y), said disinfection light emission means (30) having a light emission surface located on the line connecting said first focus (F1) and said second focus (F2) and perpendicular to said central axis (Y).

3. A disinfection device as claimed in claim 2, wherein a first parabola a 'in which said first parabolic segment (221) is situated has a first axis of symmetry (1'), and a second parabola B 'in which said second parabolic segment (222) is situated has a second axis of symmetry (2'), said first axis of symmetry (1 ') and said second axis of symmetry (2') each having an angle α with said central axis (Y), and said angle α being 0-30 °.

4. A disinfection device as claimed in claim 2, wherein said first focus (F1) is located on a second parabola, on which said second parabolic segment (222) is located, and said second focus (F2) is located on a first parabola, on which said first parabolic segment (221) is located.

5. A disinfection device as claimed in claim 3, wherein said disinfection light emission means (30) is arranged on the side of said disinfection outlet (24) remote from said disinfection inlet (23), the maximum light of said disinfection light emission means (30) impinging on a cone and said light-reflecting surface (22) having an intersection plane perpendicular to said central axis (Y), in said longitudinal section the intersection point of said intersection plane with said first parabolic line segment (221) being an intersection point C, the intersection point of a straight line passing through said intersection point C and parallel to the first axis of symmetry (1 ') of said first parabola (A') with said second parabola (B ') being an intersection point G, in said longitudinal section the intersection point P of a straight line passing through said second focal point (F2) and parallel to the first axis of symmetry (1') of said first parabola (A ') with said second parabola (B'), the end face where the disinfection inlet (23) is located between a first plane which is perpendicular to the central axis (Y) and passes through the intersection point P and a second plane which is perpendicular to the central axis (Y) and passes through the intersection point G.

6. A disinfection device as claimed in claim 2, in which said disinfection light-emitting device (30) is arranged on the side of said disinfection outlet (24) remote from said disinfection inlet (23), the maximum light of said disinfection light-emitting device (30) impinging cone has an intersection with said light-reflecting surface (22) perpendicular to said central axis (Y), and in said longitudinal section the intersection of said intersection with a first parabola, on which said first parabola is located, is an intersection C, and the end surface of said disinfection outlet (24) is located between a third plane perpendicular to said central axis (Y) and passing through said first focus (F1) and said second focus (F2), and a fourth plane perpendicular to said central axis (Y) and passing through said intersection C.

7. A disinfection device as claimed in any one of the claims 2-6, characterized in that said disinfection device (100) further comprises a light-concentrating element (50) fixed in said housing (10), said reflector (20) being spaced from said light-concentrating element (50), said light-concentrating element (50) having a light-concentrating surface for emitting light, said light-concentrating surface being configured in the shape of a paraboloid, the opening of said paraboloid being directed towards said disinfection light-emitting device (30), the axis of said paraboloid being parallel to said central axis (Y), so that light impinging on said paraboloid parallel to said central axis (Y) can be focused to a third focal point (F3), said third focal point (F3) being located in the air flow path between said air inlet opening (13) and said air outlet opening (14).

8. A disinfecting device as recited in claim 7, characterized in that said housing (10) comprises a first housing (11) and a second housing (12) which are combined, said blower (40), said reflector (20) and said disinfecting light emitting device (30) are fixed in said first housing (11), a second disinfecting passage (121) is provided in said second housing (12), said second disinfecting passage (121) is coaxially provided with said first disinfecting passage (21), a plurality of said air inlets (13) are provided at intervals on the side wall of said second housing (12), said air inlets (13) are communicated with said first disinfecting passage (21) through said second disinfecting passage (121), and said light-focusing member (50) is fixed at the end of said second housing (12) far away from said first housing (11).

9. A disinfection device as claimed in any one of claims 2-6, wherein said disinfection light-emitting device (30) comprises a set of light-emitting lamps for emitting light, the distance between said first focal point (F1) and said second focal point (F2) being equal to or greater than the length of the set of light-emitting lamps.

10. A disinfection device as claimed in claim 9, wherein said set of light-emitting lamps comprises an electrically connected circuit board (31) and a plurality of LED beads for emitting ultraviolet light, said plurality of LED beads being fixed on said circuit board (31), the surface of said circuit board (31) on which said LED beads are arranged being a light-emitting surface, said light-emitting surface being located in a plane passing through said first focus (F1) and perpendicular to said central axis (Y).

11. A disinfection apparatus as claimed in any one of the claims 1-6, wherein said disinfection apparatus (100) further comprises a filter (60), said housing (10) comprises a first housing (11) and a second housing (12) which are combined, said fan (40), said reflector (20) and said disinfection light emitting device (30) are fixed in said first housing (11), said filter (60) is disposed in said second housing (12) and has a second disinfection channel (121), a plurality of said air inlets (13) are spaced on a side wall of said second housing (12), said air inlets (13) are communicated with said first disinfection channel (21) through said second disinfection channel (121).

12. A disinfection apparatus as claimed in claim 11, wherein said reflector (20), said disinfection light emitting means (30) and said fan (40) are arranged in sequence along the direction of flow of the air flow, said reflector (20) is fixed to one end of said first housing (11), said air outlet (14) is arranged at the other end of said first housing (11), and said air outlet (14) is spaced from said fan (40).

13. Sterilization device according to any one of claims 1 to 6, the reflector (20) comprises a flange portion (25), a mounting post (26) and a light reflecting portion (27) having the light reflecting surface (22), the flange part (25) is fixed on the shell (10), the disinfection inlet (23) and the disinfection outlet (24) are respectively arranged at two ends of the reflecting part (27), the first disinfection channel (21) penetrates through the light-reflecting part (27) and the flange part (25), the flange is arranged around the end of the light reflecting part (27) provided with the disinfection inlet (23) and protrudes outwards in the radial direction, the mounting post (26) being fixed to the flange portion (25) and extending from the disinfection inlet (23) towards the disinfection outlet (24), the disinfecting light emitting device (30) is fixed to the mounting post (26).