CN210837795U

CN210837795U - Sterilizing device

Info

Publication number: CN210837795U
Application number: CN201922353698.6U
Authority: CN
Inventors: 魏峰; 孙国喜
Original assignee: Nanchang Yimei Optoelectronics Technology Co ltd
Current assignee: Nanchang Yimei Optoelectronics Technology Co ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-06-23
Anticipated expiration: 2029-12-24

Abstract

The utility model provides a sterilizing device, including the fluorescent tube, set up in the intraductal wick subassembly of fluorescent tube and locate the fluorescent tube on and the electrode of being connected with the wick subassembly, the wick subassembly includes base plate, heat dissipation device and a plurality of UV-C LED light source, and the base plate includes relative first surface and second surface, is equipped with the conducting wire on the first surface, and a plurality of UV-C LED light sources arrange on the first surface to through conducting wire connecting electrode, the heat dissipation device sets up on the second surface. The utility model discloses a arrange the base plate in the fluorescent tube to arrange a plurality of UV-C LED light sources on the base plate openly, and connect the conducting wire of UV-C LED light source and electrode, UV-C LED light source can directly send ultraviolet ray light, need not to coat filtering material inside the pipe wall, and improved the ultraviolet band and accounted for the ratio, improve bactericidal effect, energy saving and prolonged service life is short simultaneously, avoid using mercury and produce adverse effect, still dispel the heat through arranging the heat dissipation device at the base plate back, avoid UV-C LED light source to influence work because of overheated.

Description

Sterilizing device

Technical Field

The utility model relates to a sterilization technical field, in particular to sterilization device.

Background

The sterilization device mainly utilizes ultraviolet rays for sterilization, and is widely applied to scenes such as hospitals, schools, nursery houses, cinemas, buses, offices, families and the like, and the sterilization device is mainly used for sterilizing and disinfecting water, object surfaces, air and the like.

The existing sterilization device mainly comprises a quartz lamp tube, mercury (Hg) filled in the quartz lamp tube and an electrode arranged on the quartz lamp tube, wherein the electrode emits electrons under the action of a strong electric field to bombard mercury atoms so as to excite the mercury atoms to emit light.

The existing sterilization device has the defects that: the purple light color development wave band in the excited light is not easy to control, a filter substance needs to be coated inside the wall of the quartz lamp tube, the ultraviolet wave band (UV-C) is low in proportion, the sterilization effect is not good enough, meanwhile, the quartz lamp tube needs to work under the power of a strong electric field, the energy consumption is large, the energy is not saved, the service life is short, meanwhile, the main action source of the existing sterilization device is mercury vapor in the tube, and the mercury has great adverse effects on the human health and the environment.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model aims at providing a sterilizing equipment to solve the sterilizing equipment's among the prior art the poor technical problem of bactericidal effect.

According to the utility model discloses a sterilizing equipment in the middle of an embodiment, including the fluorescent tube, still including set up in the fluorescent tube the wick subassembly and locate the fluorescent tube tip and with the electrode that the wick subassembly is connected, the wick subassembly includes base plate, heat dissipation device and a plurality of UV-C LED light source, the base plate includes relative first surface and second surface, be equipped with the conducting wire on the first surface, a plurality of UV-C LED light source arrange in on the first surface, and pass through the conducting wire is connected the electrode, the heat dissipation device set up in the second is on the surface.

Further, the UV-C LED light source is a UV-C LED chip or a device obtained by packaging the UV-C LED chip.

Further, the light outlet of the UV-C LED light source is of an open structure.

Further, the UV-C LED light sources are arranged in a scattered mode along the length direction of the lamp tube.

Furthermore, the electrode is arranged on at least one end of the lamp tube, an end cover is arranged on at least one end of the lamp tube, the electrode penetrates through the end cover, and the substrate is connected to the end cover.

Furthermore, the end cover and the lamp tube are arranged in a sealing mode, and stable gas with good heat conductivity is filled in the lamp tube.

Furthermore, the edges of two sides of the bottom of the heat dissipation device are reversely provided with an avoiding chamfer.

Further, the heat dissipation device is a heat dissipation fin, the heat dissipation fin includes the flat plate portion and sets up in on the surface of flat plate portion one side and follow the length direction dispersion of fluorescent tube arranges a plurality of fin portions of arranging, the flat plate portion dorsad one side of fin portion is fixed to be located on the second surface.

Further, the second surface is coated with a thermally conductive material.

Further, the heat dissipation device is fixed on the substrate through a screw joint.

According to the sterilizing device, the substrate is arranged in the lamp tube, the UV-C LED light sources and the conducting circuits for connecting the UV-C LED light sources and the electrodes are arranged on the front surface of the substrate, the UV-C LED light sources can directly emit ultraviolet light, filtering substances do not need to be coated inside the tube wall, the ultraviolet wave band ratio is improved, the sterilizing effect is improved, meanwhile, the sterilizing device does not need to work in a strong electric field, the energy is saved, the service life is prolonged, mercury vapor is not needed, and the adverse effect of mercury on human health and the environment is avoided. In addition, the heat dissipation device is arranged on the back surface of the substrate to dissipate heat of the substrate, so that the phenomenon that the UV-C LED light source influences work due to overheating is avoided.

Drawings

Fig. 1 is an exploded perspective view of a sterilization device according to a first embodiment of the present invention;

fig. 2 is a cross-sectional view of a sterilization device according to a first embodiment of the present invention;

fig. 3 is a structural view of a conductive line according to a first embodiment of the present invention;

fig. 4 is a side view of a heat sink device in a first embodiment of the present invention;

fig. 5 is a structural view of a sterilization apparatus according to a second embodiment of the present invention.

Description of the main element symbols:

lamp tube	10	Wick assembly	20
				Electrode for electrochemical cell	30	Substrate	21
Heat sink device	22	UV-C LED light source	23
				First surface	211	Second surface	212
Conductive circuit	213	A first electrode	31
				Second electrode	32	Third bonding pad	2131
Fourth bonding pad	2132	Conductive region	2133
				Welding disc assembly	2134	First bonding pad	a
Second bonding pad	b	End cap						11
				Avoiding chamfer	22a	Thermally conductive material	22b
Flat plate part	221	Fin part	222

The following detailed description of the invention will be further described in conjunction with the above-identified drawings.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-4, a sterilization device according to a first embodiment of the present invention is shown, including a lamp tube 10, a wick assembly 20 disposed in the lamp tube 10, and an electrode 30 disposed at one end of the lamp tube 10 and connected to the wick assembly 20, wherein:

the lamp wick assembly 20 comprises a substrate 21, a heat dissipation device 22 and a plurality of UV-C LED light sources 23, wherein the substrate 21 comprises a first surface 211 and a second surface 212 which are opposite to each other, a conductive circuit 213 is arranged on the first surface 211, the plurality of UV-C LED light sources 23 are arranged on the first surface 211 and are connected with an electrode 30 through the conductive circuit 213, the heat dissipation device 22 is arranged on the second surface 212, and the electrode 30 comprises a first electrode 31 and a second electrode 32 so as to be connected with the positive electrode and the negative electrode of a power supply through the first electrode 31 and the second electrode 32.

Specifically, the UV-C LED light sources 23 are distributed and arranged along the length direction of the lamp 10, and specifically, the UV-C LED light sources 23 may be arranged in a row along the length direction of the lamp 10, so that the light sources are uniformly distributed, the sterilization effect is improved, and simultaneously, all the UV-C LED light sources 23 are connected in series or in parallel one by one, thereby reducing the occupied area, miniaturizing the substrate 21, and facilitating heat dissipation. In addition, the UV-C LED light sources 23 may be connected in series, in parallel, or in a combination of series and parallel.

In this embodiment, the UV-C LED light sources 23 are connected in series one by one, the conductive trace 213 is also a series conductive trace, referring to fig. 3, the conductive trace 213 specifically includes a third pad 2131, a fourth pad 2132, a plurality of conductive regions 2133, and a plurality of pad assemblies 2134 arranged in a corresponding dispersed manner, each UV-C LED light source 23 is connected to one pad assembly 2134, the pad assembly 2134 includes first pads a and second pads b arranged at intervals, the first pads a are welded to the first pole of the UV-C LED light sources 23, the second pads b are welded to the second pole of the UV-C LED light sources 23, and the first pole and the second pole of the UV-C LED light sources 23 are respectively the positive pole and the negative pole of the UV-C LED light sources 23. The first bonding pad a of each bonding pad assembly 2134 and the second bonding pad b of the previous bonding pad assembly 2134 are located in the same conductive area 2133, so that after the UV-C LED light sources 23 are welded on the two adjacent bonding pad assemblies 2134, the two bonding pad assemblies 2134 are also connected in series and communicated, and finally, all the UV-C LED light sources 23 are connected in series. The first electrode 31 is connected to the third pad 2131, and the first pad a and the third pad 2131 of the foremost pad assembly 2134 are in the same conductive region 2133, so that the foremost first pad a and the foremost third pad 2131 are electrically connected to the first electrode 31; the second electrode 32 is connected to the fourth pad 2132, and the second pad b and the fourth pad 2132 of the last pad assembly 2134 are located in the same conductive region 2133, so that the second pad b and the fourth pad 2132 are conducted, and further connected to the second electrode 32, thereby connecting the UV-C LED light sources 23 connected in series one by one to a power supply and forming a loop. Copper foil can be printed in the conductive area 2133, so that the whole area is conductive, a copper foil circuit is further formed, and solder resist ink is coated on the area, except the conductive area 2133 and the position of the pad, on the first surface 211.

In order to facilitate assembly of the sterilization apparatus, two ends of the lamp 10 are respectively provided with an end cap 11, the electrode 30 is inserted into one of the end caps 11, and the substrate 21 is connected between the two end caps 11. The utility model discloses in the middle of some optional embodiments, can all set one of them end cover 11 or two end covers 11 to and can dismantle with fluorescent tube 10 and be connected, if end cover 11 can set up the external screw thread, pack into the mouth of pipe of fluorescent tube 10 with the spiral in, be convenient for like this assemble, maintenance and change wick subassembly 20, when end cover 11 and fluorescent tube 10 adopt the detachable mode to be connected, in order to guarantee the gas tightness in the fluorescent tube 10, can set up the sealing washer between end cover 11 and fluorescent tube 10, the raw material area, or the mode that the point was glued in clearance department between the two realizes sealing between end cover 11 and fluorescent tube 10. In other embodiments, electrodes 30 may also be disposed at both ends of tube 10.

Specifically, the heat dissipation device 22 is a heat dissipation plate, the heat dissipation plate includes a flat plate portion 221 and a plurality of fin portions 222 disposed on a side surface of the flat plate portion 221 and distributed along the length direction of the lamp 10, a side of the flat plate portion 221 opposite to the fin portions 222 is fixed on the second surface 212, the flat plate portion 221 can uniformly conduct heat to the fin portions 222, and the fin portions 222 can fully contact with the gas in the lamp 10, so as to improve the heat dissipation effect.

In order to further improve the heat dissipation effect on the substrate 21, please refer to fig. 1 and 4, the two side edges of the bottom of the heat dissipation plate 22 are reversely provided with the avoiding chamfer 22a, the avoiding chamfer 22a is a round angle, in other embodiments, the avoiding chamfer 22a can also be a right angle, the avoiding chamfer 22a is used for avoiding the inner wall of the lamp tube 10, so as to avoid the heat dissipation plate 22 from contacting the inner wall of the lamp tube 10 to form interference, and meanwhile, due to the avoiding effect of the avoiding chamfer 22a, the heat dissipation plate 22 can be thickened and/or widened, so as to increase the heat dissipation area, thereby further improving the heat dissipation effect. In addition, the lamp tube 10 is filled with stable gas with good heat conduction, so that air in the lamp tube is isolated, the air is prevented from being excited by ultraviolet rays to generate ozone, and stable heat transfer media are added, so that the heat dissipation effect is further improved.

In specific implementation, the substrate 21 may be made of metal or ceramic with good thermal conductivity, the lamp 10 may be made of quartz glass, the heat dissipation device 22 may be fixed to the substrate 21 by screws, bolts, or other threaded members, and the stable gas with good thermal conductivity is preferably helium (He). In addition, the UV-C LED light source 23 can be an unpackaged UV-C LED chip (i.e., a bare chip) or a device packaged by a UV-C LED chip (e.g., a UV-C LED lamp bead with a support package). Moreover, the light outlet of the UV-C LED light source 23 is preferably an open structure, that is, any intermediate structure for changing the light path, such as an optical lens, a cover plate, etc., is not added at the light outlet of the UV-C LED light source 23, and the ultraviolet light is directly emitted.

To sum up, the sterilization apparatus in this embodiment, by disposing the substrate 21 in the lamp tube 10, and disposing the plurality of UV-C LED light sources 23 on the front surface of the substrate 21, and the conductive circuit 213 connecting the UV-C LED light sources 23 and the electrode 30, the UV-C LED light sources 23 can directly emit an effective deep ultraviolet band within 200-300 nm, it is not necessary to coat a filter substance inside the tube wall, and the ultraviolet band ratio is improved, thereby improving the sterilization effect, and meanwhile, it is not necessary to work under a strong electric field, the input power is only 1/6 of a traditional mercury lamp product, energy is saved, and the LED lamp is a solid state light emitting element, the service life is more than 20000H, which is 20 times of that of the traditional lamp tube, the replacement of the main components is reduced, a large amount of cost is saved, and mercury vapor is not necessary, thereby avoiding the mercury from generating adverse effects on. In addition, the heat dissipation device 22 is arranged on the back surface of the substrate 21, and the stable gas with good heat conduction is filled in the lamp tube 10 to dissipate heat of the substrate 21, so that the phenomenon that the UV-C LED light source 23 influences the work due to overheating is avoided.

Referring to fig. 5, a sterilization apparatus according to a second embodiment of the present invention is shown, which is different from the sterilization apparatus according to the first embodiment in that:

the second surface 212 of the substrate 21 is coated with a thermally conductive material 22b to increase the heat transfer between the heat dissipation device 22 and the substrate 21 to further improve the heat dissipation effect, and the thermally conductive material 22b is preferably a thermally conductive silicone grease material.

It should be noted that the device provided by the second embodiment of the present invention, which implements the same principle and produces some technical effects as the first embodiment, can refer to the corresponding contents in the first embodiment for the sake of brief description, where this embodiment is not mentioned.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a sterilizing equipment, includes the fluorescent tube, its characterized in that still including set up in lamp tube in the lamp tube subassembly and locate the fluorescent tube tip and with the electrode that the lamp tube subassembly is connected, the lamp tube subassembly includes base plate, heat dissipation device and a plurality of UV-C LED light source, the base plate includes relative first surface and second surface, be equipped with the conducting wire on the first surface, a plurality of UV-C LED light sources arrange in on the first surface, and pass through the conducting wire is connected the electrode, the heat dissipation device set up in the second is on the surface.

2. The sterilization device as claimed in claim 1, wherein the UV-C LED light source is a UV-C LED chip or a device packaged by a UV-C LED chip.

3. The sterilization device according to claim 2, wherein the light outlet of the UV-C LED light source is an open structure.

4. The germicidal device as recited in claim 1 wherein the UV-C LED light sources are distributed along a length of the tube.

5. The sterilization apparatus as claimed in claim 1, wherein the electrode is disposed on at least one end of the lamp tube, an end cap is disposed on at least one end of the lamp tube, the electrode is disposed on the end cap, and the substrate is connected to the end cap.

6. The sterilization apparatus as claimed in claim 5, wherein the end cap is hermetically sealed with the lamp tube, and the lamp tube is filled with a stable gas having good thermal conductivity.

7. The sterilization apparatus according to claim 1, wherein the bottom of the heat dissipation device has two side edges that are inverted with an avoiding chamfer.

8. The sterilization apparatus as claimed in claim 1, wherein the heat dissipation device is a heat dissipation plate, the heat dissipation plate includes a flat plate portion and a plurality of fin portions disposed on a side surface of the flat plate portion and distributed along a length direction of the lamp tube, and a side of the flat plate portion opposite to the fin portions is fixedly disposed on the second surface.

9. A sterilisation apparatus as claimed in claim 1 or 8, wherein said second surface is coated with a thermally conductive material.

10. A sterilization apparatus according to claim 1, wherein said heat sink member is screw-fixed to said base plate by a screw member.