TWM576883U - Fluid sterilization device - Google Patents

Abstract

The fluid sterilization device includes a main body, a circuit board and a light source. The main body includes a first reaction chamber and a second reaction chamber separated from each other, the first reaction chamber has a first opening and a second opening, and the second reaction chamber has a third opening and a fourth opening. The main body allows the fluid to pass through the first opening, the second opening, the third opening and the fourth opening in sequence. The circuit board is disposed on the main body. The light source is disposed on the circuit board and used for emitting a first sterilization light and a second sterilization light to the second opening and the third opening respectively.

Description

Fluid sterilization device

The present invention relates to a fluid sterilizing device, and more particularly to a fluid sterilizing device for a multi-reaction chamber.

Conventional sterilization devices generally use a single sterilization method. However, the sterilization rate for one sterilization is usually limited. If you want to increase the sterilization rate, most of them must use high-power sterilization light source or complex flow path design, but this will lead to increased cost and process complexity.

This creation relates to a fluid sterilizing device that can ameliorate the aforementioned conventional problems.

According to an embodiment of the present invention, a fluid sterilizing device is proposed. The fluid sterilization device comprises a body, a circuit board and a light source. The body includes a first reaction chamber and a second reaction chamber spaced apart from each other, the first reaction chamber has a first opening and a second opening, and the second reaction chamber has a third opening and a fourth opening, and the body allows A fluid sequentially passes through the first reaction chamber and the second reaction chamber. The circuit board is disposed on the body. The light source is disposed on the circuit board and is configured to emit a germicidal light. Part of the germicidal light passes through the second opening and is incident on the first reaction chamber, and another portion of the sterilization light passes through the third opening and is incident on the second reaction chamber.

In order to better understand the above and other aspects of the present invention, the following specific embodiments are described in detail below with reference to the accompanying drawings:

Referring to FIGS. 1A-1E, FIGS. 1A and 1B are views showing an external view of a fluid sterilizing apparatus 100 according to an embodiment of the present invention, and FIGS. 1C and 1D are exploded views of the fluid sterilizing apparatus 100 of FIG. FIG. 1E is a cross-sectional view of the fluid sterilizing apparatus 100 of FIG. 1B taken along the direction 1E-1E'.

As shown in FIGS. 1A to 1D, the fluid sterilizing device 100 includes a casing 170, a body 110, a light-transmitting plate 150, a partition plate 140, a light source 130, a circuit board 120, and an outer cover 160 in order from bottom to top. The body 110 includes a base 111, a first tube body 112, and a second tube body 113. As shown in FIGS. 1A to 1E, the susceptor 111 has a communication cavity 111a, a first hole 111b, and a second hole 111c. The first tube 112 has a first reaction chamber P1 therein. The second tube 113 has a second reaction chamber P2 therein. The first reaction chamber P1 has a first opening P11 and a second opening P12, and the second reaction chamber P2 has a third opening P21 and a fourth opening P22. The second opening P12 of the first pipe body 112 is connected to the first hole 111b. The third opening P21 of the second pipe body 113 is connected to the second hole 111c. The first reaction chamber P1 and the second reaction chamber P2 are spaced apart from each other and are parallel to each other. In other embodiments, the first reaction chamber P1 and the second reaction chamber P2 may also be angled. In this embodiment, the first reaction chamber P1 and the second reaction chamber P2 provide a vertical flow passage, and the communication chamber 111a provides a horizontal flow passage to extend the flow time of the fluid F1 inside the fluid sterilization device 100 to further increase sterilization. The sterilization rate of light to fluid F1.

The body 110 allows the fluid F1 to sequentially pass through the first opening P11, the first reaction chamber P1, the second opening P12, the communication chamber 111a, the third opening P21, the second reaction chamber P1, and the fourth opening P22. The fluid F1 may be a gas or a liquid, such as an external liquid, such as a liquid in a bottle (such as water), a liquid in a factory pipe, tap water, and the like. The circuit board 120 is disposed on the body 110. The light source 130 is disposed on the circuit board 120 and is configured to emit the first germicidal light L1 and the second germicidal light L2. The first germicidal light L1 passes through the second opening P12 and is incident on the first reaction chamber P1, and the second sterilization light L2 passes through. The third opening P21 is incident on the second reaction chamber P2. Thus, the fluid F1 undergoes the first sterilization in the first reaction chamber P1 and the second sterilization in the second reaction chamber P2. The sterilization rate of secondary sterilization is higher than that of one sterilization.

Although the tube system of the body 110 of the above embodiment is exemplified by two, in another embodiment, the number of tubes of the body 110 may exceed two, such as k, where k is equal to 3 or exceeds 3. In this way, the fluid F1 is subjected to k sterilizations after passing through the reaction chambers of the k tubes, and the sterilization rate of the fluid F1 can be further increased.

As shown in FIG. 1E, the susceptor 111 has an upper surface 111s1 and a lower surface 111s2. The communication cavity 111a extends from the upper surface 111s1 to the first hole 111b and the second hole 111c, and the first hole 111b and the second hole 111c are connected. The cavity 111a extends to the lower surface 111s2.

The susceptor 111, the first tube body 112, and the second tube body 113 can be assembled and assembled separately. Although not shown, the second opening P12 of the first tube 112 and the third opening P21 of the second tube 113 can be screwed to the first hole 111b and the second hole 111c, respectively. In another embodiment, the base 111, the first tubular body 112, and the second tubular body 113 may be integrally formed of the same material in the same process, such as by plastic injection molding using injection molding techniques. The material of the first tube body 112 and the second tube body 113 may be quartz or polytetrafluoroethylene (PTFE). Compared with quartz, the polytetrafluoroethylene has the advantages of high design flexibility, low cost and high rigidity. In other embodiments, the first tube body 112 and the second tube body 113 may have a two-layer structure, that is, two materials, and the inner or inner surface of the first tube body 112 and the second tube body 113 are quartz or The outer or outer surface of the first tubular body 112 and the second tubular body 113 is polypropylene, that is, the inner or inner surface of the first tubular body 112 and the second tubular body 113 is made of the first tube. The outer and outer surfaces of the body 112 and the second tube 113 are made of different materials.

The circuit board 120 has a relatively upper surface 120s1 and a lower surface 120s2. The light source 130 is disposed on the lower surface 120s2 facing the communication cavity 111a. The light source 130 may be a plurality of light emitting elements, and the light emitting elements may be light emitting diodes. The first germicidal light L1 and/or the second germicidal light L2 generated by the light source 130 may be ultraviolet light having a germicidal effect, so these light emitting elements It may be an ultraviolet light emitting diode. Compared to mercury lamps, light-emitting diodes start faster, are smaller, and are more power efficient.

As shown in Fig. 1E, the light source 130 includes at least one first light emitting element 131' and at least one second light emitting element 132'. The first light-emitting element 131' emits the first germicidal light L1, is incident on the first reaction chamber P1, and the second light-emitting element 132' emits the second germicidal light L2, which is incident on the second reaction chamber P2. The light-emitting optical axis of the first light-emitting element 131' coincides with the central axis AX1 of the first reaction chamber P1, and the first germicidal light L1 of the first light-emitting element 131' is expanded in the two-direction direction of the central axis AX1 of the first reaction chamber P1. The fluid F1 is sterilized. The light-emitting optical axis of the second light-emitting element 132' coincides with the central axis AX2 of the second reaction chamber P2, and the second germicidal light L2 of the second light-emitting element 132' is expanded in the two-direction direction of the central axis AX2 of the second reaction chamber P2. The fluid F1 is sterilized. The positions of the first light-emitting element 131' and the second light-emitting element 132' are opposite to the second opening P12 and the third opening P21, respectively. In this manner, the first sterilizing light L1 and the second sterilizing light L2 emitted by the first light-emitting element 131' and the second light-emitting element 132' are incident into the first reaction chamber P1 and the second through the second opening P12 and the third opening P21, respectively. The reaction chamber P2 is used to sterilize the fluid F1. In other embodiments, light source 130 can include a plurality of first illuminating elements 131 and 131' and a plurality of second illuminating elements 132 and 132'. In other embodiments, the plurality of first light-emitting elements 131 and 131' are disposed around the central axis AX1 of the first reaction chamber P1, and the plurality of second light-emitting elements 132 are disposed around the central axis AX2 of the second reaction chamber P2 to achieve a similar Uniform sterilization effect.

Further, the opening area A1 of the second opening P12 is approximately equal to n times the light-emitting area A2 of the first light-emitting element 131', where n is equal to or greater than 1, to allow the fluid sterilizing apparatus 100 to provide a desired sterilization rate. Similarly, the opening area A3 of the third opening P21 is approximately equal to m times the light emitting area A4 of the second light emitting element 132', where m is equal to or greater than 1, to allow the fluid sterilizing apparatus 100 to provide a desired sterilization rate. In an embodiment, the values of n and m may be the same or different. In addition, the length H1 of the first reaction chamber P1 is at least about 15 times or more than the side length of the light-emitting area A2 of the first light-emitting element 131', and the length H2 of the second reaction chamber P2 is at least about the second light-emitting element 132. '15 times or 15 times longer than the side length of the light-emitting area A4, so that the fluid F1 flows in the fluid sterilizing apparatus 100 for a desired period of time, thereby allowing the fluid sterilizing apparatus 100 to provide the desired sterilizing rate. In an embodiment, the light emitting area A2 of the first light emitting element 131' and/or the light emitting area A4 of the second light emitting element 132' may be Square millimeter ( )versus Between the side length of the light-emitting area A2 of the first light-emitting element 131' and/or the side length of the light-emitting area A4 of the second light-emitting element 132' may be between 3.5 millimeters (mm) and 25 mm, and the first reaction The length H1 of the cavity P1 and/or the length H2 of the second reaction chamber P2 may be between 15 mm (mm) and 100 mm.

Light source 130 includes a plurality of light-emitting elements, the sum of which can be approximately equal to the power of one light-emitting element (such as light source 130 shown in FIG. 3). In detail, the light source of the fluid sterilizing device 100 of the embodiment of the present invention does not increase the total power of the light source, regardless of the number of light-emitting elements. In other words, the embodiment of the present invention can determine the illuminating element without increasing the total power of the light source. The quantity can avoid increasing the cost of selecting the light source.

Further, in the case where the total power of the light source is constant, the power of the first light-emitting element 131' and the second light-emitting element 132' can be appropriately configured to prevent the light-emitting element from being overheated to reduce the life. For example, the total power of the light source required for sterilization is 100 mW, and if the total power is equally distributed, that is, the power of the first light-emitting element 131' and the second light-emitting element 132' is 50 mW, respectively, the light-emitting element may be caused by the accumulation of heat on the light-emitting element. Reduced service life due to light decay.

The plurality of light-emitting elements of the light source 130 can individually emit germicidal light of different light intensity at different times, thereby adjusting the heat generation amount of the light-emitting element. In an embodiment, in the first 10 seconds of the sterilization process, the first light-emitting element Element 131' can emit 25% of the total power, ie 25 milliwatts of germicidal light, while second light-emitting element 132' can emit 75% of the total power, ie 75 milliwatts of germicidal light, in the second During the 10 second sterilization process, the first light-emitting element 131' can emit 75% of the total power, that is, 75 milliwatts of sterilization light, and the second light-emitting element 132' can emit 25% of the total power, that is, 25 The milliwatts of germicidal light, that is, the load power ratios of the first light-emitting element 131' and the second light-emitting element 132' are interchanged; in the third 10-second sterilization process, the first light-emitting element 131' can emit 25 milliwatts. Sterilizing light, and the second light-emitting element 132' can emit 75 milliwatts of germicidal light; in the fourth 10 second sterilization process, the first light-emitting element 131' can emit 75 milliwatts of germicidal light, and the second light-emitting element 132' can emit 25 mW of germicidal light; and so on. The total luminous power of the foregoing light source 130 is maintained at a constant value, such as 100 milliwatts, but the embodiment of the present invention is not limited thereto.

The spacer plate 140 has an opening 140a to accommodate the light source 130. In other words, due to the design of the opening 140a, the light source 130 does not interfere with the physical material of the spacer 140. Moreover, since the light source 130 is located within the opening 140a, the length dimension of the fluid sterilizing device 100 (e.g., the dimension along the Z-axis) can be shortened. In an embodiment, the spacer 140 is, for example, a metal plate.

As shown in FIG. 1E, the light-transmitting plate 150 is pressed between the partition plate 140 and the body 110. For example, the light transmissive plate 150 is pressed between the partition plate 140 and the upper surface 111s1 of the base 111 of the body 110. Since the light-transmitting plate 150 is pressed between the partition plate 140 and the body 110, the light-transmitting plate 150 is in close contact with the body 110, and the light-transmitting plate 150 is in close contact with the partition plate 140, and the light-transmitting plate 150 and the body can be closed. a gap between the 110 and the gap between the transparent plate 150 and the spacer 140 to prevent the fluid F1 from flowing between the transparent plate 150 and the body 110 and between the transparent plate 150 and the spacer 140 to the circuit board 120 and / or light source 130, thereby avoiding fluid F1 causing circuit board 120 and/or light source 130 to fail.

As shown in FIG. 1E, the circuit board 120, the spacer 140, and the susceptor 111 have a first through hole 120h, a second through hole 140h, and a third through hole 111h, respectively. The first through hole 120h, the second through hole 140h, and the third through hole 111h substantially coincide. Although not shown, the fluid sterilizing device 100 further includes at least one fixing member that penetrates the first through hole 120h, the second through hole 140h, and the third through hole 111h to fix the circuit board 120, the partition plate 140 and the base 111. relative position. In an embodiment, the fixing member is, for example, a screw, and the third through hole 111h is a screw hole. The fixing member fixes the relative position of the circuit board 120, the spacer 140, and the susceptor 111 by screwing.

In an embodiment, the light transmissive plate 150 is, for example, a quartz plate. As shown in FIG. 1E, the outer cover 160 is attached to the circuit board 120 to protect the circuit board 120. In an embodiment, the outer cover 160 is in contact with the circuit board 120, and the heat of the circuit board 120 can be convected to the outside. In an embodiment, the outer cover 160 can be made of a material that is excellent in thermal conductivity, such as copper, aluminum, iron, or other suitable thermally conductive material.

As shown in FIG. 1E, the housing 170 can house the body 110, the circuit board 120, the light source 130, the spacer 140, the light transmissive plate 150, and the outer cover 160 to protect such components.

Referring to Fig. 2, there is shown a relationship between the flow rate of the fluid sterilizing apparatus 100 of Fig. 1E and the sterilizing ability. In the figure, the horizontal axis represents the flow rate (liters per minute), and the vertical axis represents the log reduction rate (E. coli log reduction). The curve C1 is a sterilization rate curve of the fluid sterilizing device 100 made of polytetrafluoroethylene of the first pipe body 112 and the second pipe body 113, and the curve C2 is a single pipe (single pipe can only provide one sterilization) and is made of quartz. The sterilization rate curve of the fluid sterilizing device, and the curve C3 is a sterilization rate curve of the fluid sterilizing device made of polytetrafluoroethylene in a single tube (single tube can only provide one sterilization). Curves C1, C2, and C3 are experimental results under the same conditions of a bacterial concentration of 5.2e ⁵ (CFU/ml) and a power source of 60 milliwatts (mW).

Comparing the curves C1 and C2, since the fluid sterilizing device 100 of the present invention provides secondary sterilization, even if the tubular material uses polytetrafluoroethylene, the sterilization rate of the fluid sterilizing device 100 is much higher than that of a single tube made of quartz. a fluid sterilization device. Comparing the curves C1 and C3, it can be seen that the fluid sterilizing apparatus 100 according to the present invention can have a higher sterilization rate than the single sterilization.

Please refer to FIG. 3, which is a cross-sectional view of a fluid sterilizing device 200 in accordance with another embodiment of the present invention. The fluid sterilizing device 200 includes a body 210, a circuit board 120, a light source 230, a partition plate 140, a light transmitting plate 150, an outer cover 160, and a casing 170. The fluid sterilizing device 200 of the embodiment of the present invention has similar or identical features to the fluid sterilizing device 100 described above, except that the light source 230 of the fluid sterilizing device 200 faces the first reaction chamber P1 and the second reaction chamber P2. The region, that is, the light source 230, does not face the first reaction chamber P1 and the second reaction chamber P2.

As shown in FIG. 3, the light source 230 includes at least one light emitting element, and the light emitting element does not face the first reaction chamber P1 and the second reaction chamber P2. The body 210 includes a base 211, a first tube body 112, and a second tube body 113. The susceptor 211 has a feature similar to or identical to that of the susceptor 111 described above, except that the pedestal 211 includes a partition 211a between the first reaction chamber P1 and the second reaction chamber P2.

Since the light of the light source 230 has a light-emitting angle, the light of the light source 230 can be divided into the first germicidal light L1 and the second germicidal light L2. The partitioning portion 211a has a first light guiding portion 211a1 and a second light guiding portion 211a2, wherein the first light guiding portion 211a1 can guide the first germicidal light L1 to the first reaction chamber P1, and the second light guiding portion 211a2 can The second germicidal light L2 is guided to the second reaction chamber P2. As shown in the figure, the first light guiding portion 211a1 and the second light guiding portion 211a2 are, for example, opposite inclined surfaces, and the angle A1 therebetween may be between about 30 degrees and about 120 degrees.

In another embodiment, the fluid sterilizing device 200 further includes a light guide plate (not shown) that can cover the light source 230. The light guide plate can provide a light guiding effect similar to or similar to the first light guiding portion 211a1 and the second light guiding portion 211a2. In this case, the fluid sterilizing device 200 can omit the first light guiding portion 211a1 and the second light guiding portion 211a2, that is, the partition portion 211a of Fig. 3 can be changed to the corresponding structure of Fig. 1E.

Please refer to FIG. 4, which is a cross-sectional view of a fluid sterilizing device 300 according to another embodiment of the present invention. The fluid sterilizing device 300 includes a body 110, a circuit board 120, a light source 130, a partition plate 140, a light transmitting plate 150, an outer cover 160, a casing 170, a first filter element 380, and a second filter element 390. The fluid sterilizing device 300 of the embodiment of the present invention has similar or identical features to the fluid sterilizing device 100 described above, except that the fluid sterilizing device 300 further includes at least one filter element.

In detail, the first filter element 380 is disposed in the first reaction chamber P1, and the second filter element 390 is disposed in the second reaction chamber P2. The fluid F1 sequentially passes through the first opening P11, the first filter element 380, the second opening P12, the communication cavity 111a, the third opening P21, the second filter element 390, and the fourth opening P22. The impurities of the fluid F1 can be filtered through the filter core to purify the fluid F1. In another embodiment, the fluid sterilizing device 300 can omit one of the first filter element 380 and the second filter element 390. Further, as shown in FIG. 4, the first filter element 380 may fill at least a portion of the first reaction chamber P1, and the second filter element 390 may also fill at least a portion of the second reaction chamber P2.

5A and 5B, FIG. 5A is an exploded view of the fluid sterilizing device 400 according to another embodiment of the present invention, and FIG. 5B is a cross-sectional view of the fluid sterilizing device 400 of FIG. 5A.

The fluid sterilizing device 400 includes a body 410, a circuit board 120, a light source 130, a partition plate 140, a light transmitting plate 150, an outer cover 160, and a casing 170. The body 410 includes a base 411, a first tube body 412, and a second tube body 413. The susceptor 411 has a communication cavity 411a, a first hole 411b, a second hole 411c, a partition 411d, and a groove 411r. The partition 411d is located between the first reaction chamber P1 and the second reaction chamber P2. The groove 411r extends from the bottom surface of the communication chamber 411a toward the light irradiation direction to the partition portion 411d. The position of the groove 411r substantially corresponds to a region between the first light emitting element and the second light emitting element. The arrangement of the groove 411r can reduce the blocking of the light by the partition 411d. For example, the first sterilizing light L1 of the first illuminating element of the light source 130 may be incident into the first tube 412 and the second tube 413, and the second sterilizing light L2 of the second illuminating element may be incident on the first tube 412. And in the second tube body 413.

The arrangement of the grooves 411r can also change the flow velocity, flow direction and/or flow path of the fluid F1 for the purpose of turbulence. It also enhances the efficiency of sterilization by disturbing the flow. The depth of the groove 411r is greater than 2 cm, and in another embodiment, the depth of the groove 411r is about 5 cm to 8 cm. The width of the groove 411r is smaller than the diameters of the first reaction chamber P1 and the second reaction chamber P2, that is, smaller than the inner diameters of the first tube body 412 and the second tube body 413.

Referring to FIG. 5C, in this embodiment, the base 411' of the body 410' includes a base member 4111' and a base member 4112', and the base member 4111' can be fitted to the base member 4112. 'Upper, the base member 4112' is made of polytetrafluoroethylene, and the first tube body 412 and the second tube body 413 of the body 411' are connected to the base member 4111', and can be simultaneously formed by integral molding. The first tube body 412 and the second tube body 413 are coupled to the base member 4111'.

Please refer to FIGS. 6A-6C , which are diagrams showing the relationship between the time and the luminous power of the light source according to several embodiments of the present invention.

As shown in Fig. 6A, in the time interval T11, in a state where the fluid F1 is not flowing, the light source 130 continues to emit light in a low current (low power) state. In the time interval T12, when the fluid F1 flows, the fluid sterilizing device activates the sterilizing function, and the light source 130 emits light in a high current (high power) state.

As shown in Fig. 6B, in the time interval T21, the light source 130 emits light in a pulse signal manner in a state where the fluid F1 does not flow. In the time interval T22, when the fluid F1 flows, the fluid sterilizing device activates the sterilizing function, and the light source 130 continues to emit light.

As shown in Fig. 6C, when the external signal is activated, the fluid sterilizing device emits the sterilizing light for at least a period of time t1, and the water is discharged at least for a period of time t2. When the fluid device receives the external signal, the water stop is terminated, and the sterilization light is stopped after at least a delay.

In the light-emitting mode of Figs. 6A to 6C, the light source 130 continues to maintain the sterilizing state of the fluid F1 in the fluid sterilizing device regardless of whether or not the fluid F1 in the fluid sterilizing device flows.

7A to 7B, FIG. 7A is a cross-sectional view of a fluid sterilizing device 500 according to another embodiment of the present invention, and FIG. 7B is a view showing the time of the fluid sterilizing device 500 of FIG. 7A and the luminous power of the light source. Diagram of the relationship. The fluid sterilizing device 500 includes a body 210, a circuit board 120, a light source 230, a partition plate 140, a light transmitting plate 150, an outer cover 160, a casing 170, and a light intensity sensor 580. The light intensity sensor 580 is disposed on the circuit board 120 and is used to sense the light intensity.

In the initial time interval T31, the light intensity sensor 580 detects the light intensity of the light source 230, and turns on about 50% of the unit pulse time in a unit time to achieve a sterilization effect. With time, for example, in the time interval T32, the light intensity sensor 580 continuously detects the light intensity of the light source 230. When the light intensity is reduced to 50% due to the light decay, 100% unit pulse time is turned on, so that the sterilization effect is not It deteriorates because of the light decay. During the sterilization process, in the time interval T31, the dose is approximately equal to 50% of the pulse time multiplied by the light intensity, and in the time interval T32, the dose is approximately equal to 100% of the pulse time multiplied by 50% of the light intensity. Thus, the dose of the time interval T31 is equal to the dose of the time interval T32. Thus, by adjusting the unit pulse time of the opening of the light source 230, the sterilization dose can be maintained.

In summary, although the present invention has been disclosed above by way of example, it is not intended to limit the present invention. Those of ordinary skill in the art to which the present invention pertains can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this new type is subject to the definition of the scope of the patent application.

100, 200, 300, 400, 500‧‧‧ fluid sterilizer

110, 210, 410, 410’‧‧‧ ontology

111, 211, 411, 411' ‧ ‧ pedestal

111a, 411a‧‧‧ connected cavity

111b, 411b‧‧‧ first hole

111c, 411c‧‧‧ second hole

112, 412‧‧‧ first body

113, 413‧‧‧ second body

111h‧‧‧ third perforation

111s1‧‧‧ upper surface

111s2‧‧‧ lower surface

120‧‧‧ boards

120h‧‧‧first perforation

120s1‧‧‧ upper surface

120s2‧‧‧ lower surface

130, 230‧‧‧ light source

131‧‧‧First light-emitting element

132‧‧‧Second light-emitting element

140‧‧‧ Spacer

140a‧‧‧ openings

150‧‧‧light board

140h‧‧‧second perforation

160‧‧‧ Cover

170‧‧‧ Shell

211a, 411d‧‧‧parts

211a1‧‧‧First Light Guide

211a2‧‧‧Second Light Guide

380‧‧‧First filter

390‧‧‧Second filter

4111'‧‧‧ base base

4112'‧‧‧Base parts

580‧‧‧Light intensity sensor

Areas A1, A2, A3, A4‧‧

AX1, AX2‧‧‧ central axis

C1, C2, C3‧‧‧ curves

H1, H2‧‧‧ length

L1‧‧‧first germicidal light

L2‧‧‧Second sterilization light

F1‧‧‧ fluid

P1‧‧‧First reaction chamber

P11‧‧‧ first opening

P12‧‧‧ second opening

P2‧‧‧Second reaction chamber

P21‧‧‧ third opening

P22‧‧‧ fourth opening

T11, T12, T21, T22, T31, T32‧‧‧ time interval

1A and 1B are views showing the appearance of a fluid sterilizing apparatus according to an embodiment of the present invention. 1C and 1D are exploded views showing the fluid sterilizing apparatus of Fig. 1A. Fig. 1E is a cross-sectional view showing the fluid sterilizing apparatus of Fig. 1B in the direction 1E-1E'. Fig. 2 is a graph showing the relationship between the flow rate and the sterilizing ability of the fluid sterilizing device of Fig. 1E. 3 is a cross-sectional view of a fluid sterilizing device in accordance with another embodiment of the present invention. 4 is a cross-sectional view of a fluid sterilizing device in accordance with another embodiment of the present invention. FIG. 5A is an exploded view of a fluid sterilizing device according to another embodiment of the present invention. Fig. 5B is a cross-sectional view showing the combination of the fluid sterilizing device of Fig. 5A. FIG. 5C is an exploded view of the fluid sterilizing device according to another embodiment of the present invention. 6A to 6C are diagrams showing the relationship between the time and the luminous power of the light source according to several embodiments of the present invention. 7A is a cross-sectional view of a fluid sterilizing device in accordance with another embodiment of the present invention. Fig. 7B is a graph showing the relationship between the time of the fluid sterilizing device of Fig. 7A and the luminous power of the light source.

Claims (19)

A fluid sterilizing device comprising: a body comprising a first reaction chamber and a second reaction chamber spaced apart from each other, the body allowing a fluid to sequentially pass through the first reaction chamber and the second reaction chamber; a circuit board, Arranging on the body; and a light source disposed on the circuit board for emitting a germicidal light, at least part of the germicidal light, incident on the first reaction chamber, at least another portion of the germicidal light, incident on the first Two reaction chambers. The fluid sterilizing device of claim 1, further comprising: at least one filter element disposed in at least one of the first reaction chamber and the second reaction chamber. The fluid sterilizing device of claim 1, wherein the body comprises a base, the base has a communication cavity, the body allows a fluid to sequentially pass through the first reaction cavity, the communication cavity, and the Second reaction chamber. The fluid sterilizing device of claim 3, wherein the body further comprises a first tube body and a second tube body, wherein the first reaction chamber is located in the first tube body, the second reaction chamber Located in the second tube. The fluid sterilizing device of claim 3, wherein the base of the body comprises a base member and a base member, and the base member is fitted to the base member. The fluid sterilizing device of claim 5, wherein the base comprises a base member and a base member, and the base member is made of polytetrafluoroethylene. The fluid sterilizing device of claim 4, wherein the first tube body and the second tube body are connected to the susceptor. The fluid sterilizing device of claim 4, wherein an inner surface of the first pipe body and an inner surface of the second pipe body are different from an outer surface of the first pipe body and the second pipe body The outer surface is made of different materials. The fluid sterilizing device of claim 8, wherein the inner surface of the first pipe body and the inner surface of the second pipe body are polytetrafluoroethylene. The fluid sterilizing device of claim 3, wherein the base further has a partition between the first reaction chamber and the second reaction chamber. The fluid sterilizing device of claim 10, wherein the partitioning portion has a first light guiding portion and a second light guiding portion, wherein the first light guiding portion is configured to guide at least part of the sterilizing light to the first a reaction chamber, and the second light guiding portion is configured to guide at least a portion of the sterilization light to the second reaction chamber. The fluid sterilizing device of claim 10, wherein the base further has a recess, and the recess extends from the bottom surface of the communicating cavity to the sterilizing light irradiation direction to the partition. The fluid sterilizing device of claim 12, wherein the groove has a depth greater than 2 cm. The fluid sterilizing device of claim 13, wherein the groove has a depth of about 5 cm to 8 cm. The fluid sterilizing device of claim 12, wherein the groove has a width smaller than a diameter of the first reaction chamber and the second reaction chamber. The fluid sterilizing device of claim 1, wherein the light source comprises a first illuminating element and a second illuminating element, the first illuminating element emitting the at least part of the sterilizing light, incident on the first reaction chamber The second illuminating element emits the at least another portion of the sterilizing light and is incident on the second reaction chamber. The fluid sterilizing device according to claim 16, wherein the length of the first reaction chamber is about 15 times longer than the side length of the light-emitting area of the first light-emitting element. The fluid sterilizing device according to claim 1, wherein the light source emits light in a pulse signal manner. The fluid sterilizing device of claim 1, further comprising a light intensity sensor disposed on the circuit board to sense the intensity of the sterilizing light emitted by the light source.