TW201318977A - Water filter with UV sterilization device - Google Patents

Abstract

Disclosed is a water filter with a UV sterilization device, including: a container used for water inflow or outflow, a UV sterilization lamp installed inside the container, and a water flow detection device connected to water inlet or water outlet of the container. The water flow detection device comprises a housing, a rotatable member, a permanent magnet, a magnetic sensor and a control circuit. The housing is used for water inflow and outflow; the rotatable member is pivotally installed inside the housing and rotates by water flow in the housing; the permanent magnet is installed on the rotatable member and can cause position change by the rotation of the rotatable member; the magnetic sensor is installed on the housing and can send out a sensing signal to the control circuit while sensing the change in magnetic field of the permanent magnet; and the control circuit sends out a controlling signal according to the sensing signal, such that the controlling signal can trigger the UV sterilization lamp.

Description

Water filter with ultraviolet disinfection device

The present invention relates to a water filter, and more particularly to a water filter having an ultraviolet sterilization device.

According to the water filter with ultraviolet germicidal lamp, the structure mainly comprises a container for allowing water to flow in and out, and an ultraviolet germicidal lamp disposed in the container, and killing by ultraviolet light emitted by the ultraviolet germicidal lamp. Bacteria that pass into the water in the container.

At present, there are water filters with ultraviolet disinfection devices on the market, and some of them are normally turned on after the power is connected. Since the lamp of the water filter is in an open state for a long time, not only power is consumed, but also the service life of the lamp tube is unnecessarily lost.

Therefore, there are some electronic water flow detecting devices on the market that have ultraviolet disinfection devices, which can automatically turn on the ultraviolet rays by detecting the flow of water into the water filter containing the ultraviolet germicidal lamp in the water filter. The germicidal lamp sterilizes the water flowing into the container; when the water stops flowing into the container, the ultraviolet germicidal lamp is automatically turned off to save power and reduce the loss of lamp life. However, the electronic water flow detecting device has high error and failure rate, and the cost is not low.

Furthermore, since the sterilization ability of the ultraviolet lamp tube gradually decreases with the accumulation of the illumination time, the user must replace the lamp tube within a certain period of time during the illumination time of the ultraviolet lamp tube, so as to prevent the sterilization function from being reduced to It can be tolerated below the range.

The general way to determine the timing of the replacement of the UV lamp is to record the replacement time of the lamp so that a new lamp can be replaced after the next scheduled time has elapsed. In this way, the correct timing of the replacement is based on the premise that the UV lamp must be turned on at any time, but for some of the current market, it is detected that the water enters the water filter container will turn on the UV lamp. In the case of the water filter of the tube, this recording lamp replacement time determines the timing of the next replacement of the lamp, and the requirement to replace the lamp at an accurate timing cannot be achieved.

In view of the above, the main object of the present invention is to provide a water filter with an ultraviolet ray sterilizing device, which adopts a mechanical structure to detect water flowing into or out of a container equipped with an ultraviolet germicidal lamp, thereby reducing the detection error rate. , failure rate and cost of detecting the device.

Another object of the present invention is to provide a water filter having an ultraviolet ray sterilizing device for detecting whether water flows into or out of a container equipped with an ultraviolet sterilizing lamp, and accordingly sends a control signal to turn on the ultraviolet sterilizing lamp.

A further object of the present invention is to provide a water filter having an ultraviolet ray sterilizing device, which is capable of detecting a flow of water into or out of a container equipped with an ultraviolet sterilizing lamp, and calculating a cumulative amount of water flowing through the container as a determining ultraviolet ray sterilization The basis for the replacement of the lamp.

To achieve the above object, the water filter provided with the ultraviolet sterilizing device of the present invention comprises a container, an ultraviolet germicidal lamp and a water flow detecting device.

Wherein the container has an inlet and an outlet for allowing water to flow into and out of the container; the ultraviolet germicidal lamp is disposed in the container; the water flow detecting device is disposed on the container and located in the container At the entrance or exit.

Moreover, the water flow detecting device comprises: a casing having an inlet and an outlet, each of which communicates with the accommodating space and the outside of the casing for allowing water to flow into and out of the casing; wherein the casing The outlet of the body is connected to the inlet of the container, or the inlet of the housing is connected to the outlet of the container.

a rotating member is pivotally disposed in the accommodating space of the housing, and has a pivoting seat and a plurality of blades radiatingly connected to the pivoting seat, thereby flowing water from the inlet of the housing When it flows out from the outlet of the casing, the rotating member is caused to rotate.

A permanent magnet is disposed on the rotating member.

a magnetic sensor that sends a sensing signal when a magnetic field change within a predetermined distance is sensed, and a magnetic field of the permanent magnet is sensed when the rotating member is disposed outside the receiving space Location.

A control circuit is electrically connected to the magnetic sensor for receiving the sensing signal and transmitting a control signal accordingly.

In an embodiment of the invention, the water filter with the ultraviolet sterilizing device further comprises a control switch electrically connected to the control circuit and the ultraviolet germicidal lamp, thereby receiving the control signal and turning on the ultraviolet germicidal lamp.

In an embodiment of the invention, the control circuit further has a timing circuit for turning off the ultraviolet germicidal lamp when the control circuit does not receive the sensing signal of the magnetic sensor within a predetermined time.

In an embodiment of the invention, the control circuit has a counting circuit and an arithmetic circuit and a storage unit; the counting circuit is configured to calculate the number of received sensing signals and store the storage in the overwrite manner. The operation circuit is configured to calculate a cumulative amount of water corresponding to the number of times counted by the counting circuit, and stored in the memory in an overwritten manner.

In an embodiment of the invention, the water filter with the ultraviolet sterilizing device further includes a display electrically connected to the control circuit for displaying the accumulated water amount.

In an embodiment of the invention, the water filter with the ultraviolet ray sterilizing device further includes a warning device, and the warning device is electrically connected to the control circuit for collecting the accumulated water amount or the number of times the sensing signal is accumulated. A warning message is sent when a predetermined value is reached. Moreover, the above warning device may be a buzzer or an illuminant.

In an embodiment of the invention, the control circuit further includes a reset circuit and a reset switch; the reset circuit is configured to update the value stored in the memory to be zero; the reset switch is used to activate the weight Set the circuit.

In the embodiment of the present invention, the housing includes a back cover, a front cover and a decorative cover, and the inlet and the outlet of the housing are disposed on the back cover; the front cover closes the receiving space of the housing; The cover is coupled to the outside of the front cover, wherein the magnetic sensor and the control circuit are disposed between the front cover and the cover.

According to the present invention, the water filter with the ultraviolet ray sterilizing device controls the ultraviolet sterilizing control switch by automatically sensing the water flow, thereby achieving the functions of power saving and complete sterilization; and calculating the flow through the ultraviolet sterilizing The cumulative amount of water used in the lamp determines the basis for replacement of the ultraviolet germicidal lamp by using the accumulated amount of water, thereby avoiding human operation or loss of recording, and making the ultraviolet germicidal lamp the most efficient use.

In order that the present invention may be more clearly described, the preferred embodiments are illustrated in the accompanying drawings.

Please refer to FIG. 1 to FIG. 6 , which is a water filter 1 with an ultraviolet ray sterilization device according to a preferred embodiment of the present invention. The water filter comprises a container 10, an ultraviolet germicidal lamp 20, a control switch 30 and a water flow detecting device 40.

The container 10 has an inlet 12 and an outlet 14 that communicate with the interior and exterior of the container to allow water to flow into and out of the container, and a display 16 is provided on the container 10.

The ultraviolet germicidal lamp 20 is disposed in the container 10 (shown in FIG. 3) for sterilizing water flowing through the container 10.

The control switch 30 is electrically connected to the ultraviolet germicidal lamp 20 (as shown in FIG. 6), and controls the opening and closing of the ultraviolet germicidal lamp 20.

The water flow detecting device 40 can be mounted on the container 10 and located at the inlet 12 or the outlet 14 of the container 10. In this embodiment, the inlet 12 of the container 10 is taken as an example ( As shown in FIG. 1 , it includes a housing 41 , a rotating member 42 , a permanent magnet 43 , a circuit board 44 and a magnetic sensor 45 . The housing 41 includes a back cover 411 and a front cover 412 . With a trim cover 413. The back cover 411 has an accommodating space 411A, an inlet 411B and an outlet 411C. The inlet 411B and the outlet 411C each communicate with the accommodating space 411A and the outside of the casing 41. The inlet 411B is supplied with water into the casing 41, and the outlet 411C communicates with the inlet 12 of the vessel 10. Of course, when the water flow detecting device 40 is disposed at the outlet 14 of the container 10, the inlet 411B of the casing 41 is connected to the outlet 14 of the container 10. The front cover 412 is used to close the accommodating space 411A of the back cover 411; the decorative cover 413 is assembled on the outer side of the front cover 412.

The rotating member 42 has a pivoting seat 421 and a plurality of blades 422 radially connected to the pivoting seat 421. The pivoting seat 421 is pivotally disposed on the housing 41 by a rotating shaft 423. Within 411A. Thereby, when water flows in from the inlet 411B of the casing 41 and flows out from the outlet 411C of the casing 411, the blades 422 are pushed by the flowing water to cause the rotating member 42 to rotate.

The permanent magnet 43 is disposed on the pivoting seat 421, and its position changes with the rotation of the rotating member 42.

The circuit board 44 is disposed between the front cover 412 and the trim cover 413, and has a control circuit 441. The control circuit 441 includes a timing circuit 441A, a counting circuit 441B, an arithmetic circuit 441C and a memory 441D. As described later.

The magnetic sensor 45 is disposed on the circuit board 44 and electrically connected to the control circuit 441. Moreover, the magnetic sensor 45 is located at a position where the magnetic field of the permanent magnet 43 is sensed when the rotating member 42 rotates, and when the magnetic sensor 45 senses a change in the magnetic field generated by the positional movement of the permanent magnet 43 An inductive signal is sent to the control circuit 441, and the control circuit 441 receives the inductive signal to issue a control signal.

The above is a description of the structure of the water filter 1 having the ultraviolet ray sterilizing device according to a preferred embodiment of the present invention, and the effect obtained by the operation of the water flow detecting device 40 is explained again: wherein, when the water is self- Before the inlet 12 of the container 10 of the water filter 1 flows in, it first flows through the casing 41 to cause the rotating member 42 to rotate, and causes the permanent magnet 43 to change in position as the rotating member 42 rotates. (See FIGS. 4 and 5); the positional change of the permanent magnet 43 causes the magnetic sensor 45 to repeatedly enter and leave its magnetic field range, and the magnetic sensor 45 is repeatedly emitted due to the change of the induced magnetic field. The sensing signal is sent to the control circuit 441. When the control signal 441 receives the first sensing signal, it sends a control signal to the control switch 30. The control switch 30 turns on the ultraviolet germicidal lamp 20 according to the control signal, so as to continuously enter the container 10. The water is sterilized to ensure the quality of the drinking water.

On the other hand, when the water does not flow into the casing 41, the rotating member 42 stops rotating due to the lack of water flow, and the permanent magnet 43 stops changing in position. Therefore, the magnetic sensor 45 does not sense the change of the magnetic field. The sensing signal is stopped from being sent to the control circuit 441. At this time, the timing circuit 441A starts counting, and after a preset time (for example, 7 seconds), the control circuit 441 sends a control signal to the control switch 30, so that the control switch turns off the ultraviolet germicidal lamp 20. This delaying the function of the ultraviolet germicidal lamp ensures that the water that has just entered the container 10 is indeed sterilized.

In this embodiment, the rotation of the rotating member 42 and the change of the magnetic field caused by the positional change of the permanent magnet 43 due to the action of the water inlet cause the magnetic sensor 45 to sense the change of the magnetic field, and accurately send the sensing signal to the control. The circuit 441, the control circuit 441 further controls the opening of the ultraviolet germicidal lamp 20 according to a control signal, so that the water entering the container 10 is completely sterilized; the embodiment can avoid the human operation, such as after use. The control switch 30 of the ultraviolet germicidal lamp 20 is not turned off, causing the ultraviolet germicidal lamp 20 to be turned on for a long period of time, resulting in a reduction in the life of the ultraviolet germicidal lamp 20.

It is to be noted that, in addition to the function of controlling the opening and closing of the ultraviolet germicidal lamp 20, the water flow detecting device 40 of the present invention has a function of calculating the accumulated amount of water flowing through the container 10, and the operation mode is to utilize the The counting circuit 441B on the control circuit 441 calculates the number of times of the sensing signal emitted by the magnetic sensor 45, and stores it in the memory 441D in an overwritten manner; and the opening size of the inlet 411B and the outlet 411C of the housing 41 In a constant case, the amount of water flowing through the casing 41 is a fixed value, and the cumulative amount of water corresponding to the number of times counted by the counting circuit 441B is calculated by the arithmetic circuit 441C, thereby obtaining the cumulative amount entering the container 10. The amount of water is stored in the memory 441D in an overwritten manner, and the accumulated amount of water is digitally displayed on the screen of the display 16 electrically connected to the control circuit 441 to facilitate the user to know that the ultraviolet light has been sterilized by the ultraviolet ray. The cumulative amount of water to be sterilized by the lamp 20 is further used as a basis for determining the timing of replacement of the ultraviolet germicidal lamp 20.

In addition, the control circuit 441 further includes a reset circuit 441E and a reset switch 441F. After replacing the new ultraviolet germicidal lamp 20, the reset circuit 441F is activated by pressing the reset switch 441F. The reset circuit 441E updates the value stored in the reservoir 445 to zero to recalculate the lifetime of the new ultraviolet germicidal lamp 20.

In addition, the water filter 1 with the ultraviolet sterilizing device further includes a warning device 18 (shown in FIG. 1 ), and the warning device 18 is disposed on the container 10 as a buzzer or an illuminant. And electrically connected to the control circuit 441. When the accumulated water amount or the sensing signal reaches a preset value, a warning message is sent, such as lighting or a sound to remind the user to replace the ultraviolet sterilization. The lamp 20 maintains the water filter with a good bactericidal effect.

In summary, the water filter 1 with the ultraviolet ray sterilizing device provided by the present invention directly turns on or off the ultraviolet sterilizing lamp 20 according to the inflow of water, has the effect of saving electricity and achieves an efficient sterilizing effect. Moreover, the number of magnetic fields of the permanent magnet 43 and the amount of water contained in the casing 41 are sensed by the magnetic sensor 45, so that the accumulated amount of water flowing through the ultraviolet germicidal lamp 20 can be accurately calculated, and the cumulative amount of water can be used to determine The replacement of the ultraviolet germicidal lamp 20 can avoid the human operation or the loss of recording, and the life of the ultraviolet germicidal lamp 20 can be utilized most efficiently.

The above is only a preferred embodiment of the present invention, and equivalent structural changes to the scope of the present invention and the scope of the claims are intended to be included in the scope of the present invention.

1. . . Water filter with ultraviolet disinfection device

10. . . container

12. . . Entrance

14. . . Export

16. . . monitor

18. . . Warning device

20. . . UV germicidal lamp

30. . . Control switch

40. . . Water flow detecting device

41. . . case

411. . . Back cover

412. . . The front cover

413. . . Cover

411A. . . Housing space

411B. . . Entrance

411C. . . Export

42. . . Rotating piece

421. . . Pivot socket

422. . . blade

423. . . Rotating shaft

43. . . permanent magnet

44. . . Circuit board

441. . . Control circuit

441A. . . Timing circuit

441B. . . Counting circuit

441C. . . Operation circuit

441D. . . Storage

441E. . . Reset circuit

441F. . . Reset switch

45. . . Magnetic sensor

1 is an exploded perspective view of a preferred embodiment of the present invention;

2 is a perspective assembled view of a preferred embodiment of the present invention;

Figure 3 is a cross-sectional view of a preferred embodiment of the present invention;

4 is a cross-sectional view showing a positional change of a permanent magnet and a water flow direction according to a preferred embodiment of the present invention;

Figure 5 is a cross-sectional view showing a positional change of a permanent magnet and a water flow direction according to a preferred embodiment of the present invention.

FIG. 6 is a schematic diagram of circuit connections according to a preferred embodiment of the present invention.

1. . . Water filter with ultraviolet disinfection device

10. . . container

12. . . Entrance

14. . . Export

16. . . monitor

18. . . Warning device

40. . . Water flow detecting device

41. . . case

411. . . Back cover

412. . . The front cover

413. . . Cover

411A. . . Housing space

411B. . . Entrance

411C. . . Export

42. . . Rotating piece

421. . . Pivot socket

422. . . blade

423. . . Rotating shaft

43. . . permanent magnet

44. . . Circuit board

45. . . Magnetic sensor

Claims (12)

A water filter having an ultraviolet sterilizing device, comprising: a container having an inlet and an outlet for allowing water to flow into and out of the container; an ultraviolet germicidal lamp disposed in the container; and a water flow detection The device is disposed on the container and located at the inlet or the outlet of the container, and comprises: a casing having an inlet and an outlet, each of which communicates with the accommodating space and the exterior of the casing for allowing water to be Flowing into and out of the housing; wherein the outlet of the housing is connected to the inlet of the container, or the inlet of the housing is connected to the outlet of the container; a rotating member is pivoted inside the housing and has a pivotal connection And a plurality of blades radiatingly connected to the pivoting seat, whereby when the water flows in from the inlet of the casing and flows out from the outlet of the casing, the rotating member is rotated; a permanent magnet Provided on the rotating member; a magnetic sensor is configured to send a sensing signal when a magnetic field change within a predetermined distance range is sensed, and the rotating member disposed outside the receiving space can be rotated Sensing the permanent magnet The position of the magnetic field; a control circuit connected electrically to the magnetic sensor, for receiving the sensing signal, and accordingly sends out a control signal. The water filter having the ultraviolet sterilizing device according to claim 1, further comprising a control switch electrically connected to the control circuit and the ultraviolet germicidal lamp, thereby receiving the control signal and turning on the ultraviolet germicidal lamp. The water filter having the ultraviolet sterilizing device according to claim 2, wherein the control circuit further has a timing circuit for not receiving the ultraviolet sterilizing lamp in the predetermined time When the magnetic sensor senses the signal, the ultraviolet germicidal lamp is turned off. A water filter having an ultraviolet sterilizing device according to claim 1, wherein the control circuit has a counting circuit and an arithmetic circuit and a storage; the counting circuit is configured to calculate the number of received sensing signals and to cover The write mode is stored in the storage; the operation circuit is configured to calculate the accumulated water amount corresponding to the counted times of the counting circuit, and is stored in the storage in an overwritten manner. A water filter having an ultraviolet sterilizing device according to claim 4, further comprising a display electrically connected to the control circuit for displaying the accumulated water amount. The water filter with the ultraviolet sterilizing device of claim 4 further includes a warning device electrically connected to the control circuit for issuing a warning message when the accumulated water amount reaches a predetermined value. The water filter of the ultraviolet sterilizing device of claim 4, further comprising a warning device, wherein the warning device is electrically connected to the control circuit for issuing a warning message when the number of times the sensing signal is accumulated reaches a predetermined value . A water filter having an ultraviolet ray sterilizing device according to claim 6 or 7, wherein the warning device is a buzzer. A water filter having an ultraviolet ray sterilizing device according to claim 6 or 7, wherein the warning device is an illuminant. The water filter of the ultraviolet sterilizing device of claim 4, wherein the control circuit further comprises a reset circuit and a reset switch; the reset circuit is configured to update the value stored in the memory to be zero; The reset switch is used to activate the reset circuit. A water filter having an ultraviolet sterilizing device according to claim 1, wherein the housing comprises a back cover, a front cover and a cover, and the inlet and the outlet of the case are disposed on the back cover; the front cover The accommodating space of the casing is closed; the garnish is coupled to the outside of the front cover. A water filter having an ultraviolet ray sterilizing device according to claim 11, wherein the magnetic sensor and the control circuit are disposed between the front cover and the decorative cover.