JP3913816B2 - UV sterilizer for water in 24-hour bath water purification and circulation system - Google Patents

Description

[0001]
[Industrial application fields]
The present invention is arranged in a bath water circulation path, and the UV lamp and outer tube of an ultraviolet sterilizer for water can be freely attached to and detached from the apparatus body, and the UV lamp can also be detached from the outer tube. The present invention relates to an ultraviolet sterilizer for water in a 24-hour bath water purifying and circulating apparatus capable of preventing damage to a lamp and cleaning an outer tube and a UV lamp safely and reliably.
[0002]
[Prior art]
FIG. 8 is a sectional view of a conventional UV lamp unit, which includes a UV lamp a, an outer tube b, a housing c, and a housing lid d. When the UV lamp a is used in a bath water purification / circulation device for 24 hours, considering the safety of the electrical and safety when the lamp is broken, glass, quartz, etc. that transmit UV rays well outside the UV lamp a Often, an outer tube b made of the above material is provided. In order to increase the sterilization efficiency, the outer tube b is preferably made of a material having a good ultraviolet transmittance, and is preferably free from dirt that impedes the transmittance. However, at present, it is inevitable that the outer tube b is contaminated by sterilization of non-fresh water such as bath water. Therefore, it is necessary to periodically clean the outer tube b by removing it from the UV lamp unit every six months to one year.
[0003]
On the other hand, the UV lamp a has a life and needs to be replaced. The frequency of replacement is once every few years for the cold cathode type and once every one to two years for the hot cathode type. In the conventional UV lamp unit structure, when the outer tube b is cleaned, first, the lamp inserted in the outer tube b is taken out, and then the outer tube is removed from the UV lamp unit. I came.
[0004]
[Problems to be solved by the invention]
However, when the cleaning frequency of the outer tube b and the replacement frequency of the UV lamp a are compared, the cleaning frequency of the outer tube b is overwhelmingly higher, and there are various cases in which the lamp is removed from the outer tube b every time the outer tube b is cleaned. There was a problem at this point. First, since both the outer tube b and the UV lamp a are made of a material that is easily broken such as glass or quartz, the UV lamp a may be broken when inserted into the outer tube b. In particular, the glass of the UV lamp a generally has a lower wall pressure, and care must be taken in handling the UV lamp a. Further, if fingerprints or the like are attached to the outer wall of the lamp, it causes devitrification. When touching the UV lamp a, it is required to wear gloves. Furthermore, the lead wire welded portion of the UV lamp a and the portion where the glass portion of the UV lamp a is fixed to the base are very delicate places, and if the handling is complicated, it is often broken. In particular, when the outer tube b was removed for the purpose of cleaning, the UV lamp a was removed, and the UV lamp a was left as it was, and there was a high risk of breaking during the cleaning operation. Further, since the UV lamp a needs to be cleaned, a function of separating the UV lamp a and the outer tube b is also required.
[0005]
[Means for Solving the Problems]
Therefore, the inventor aimed at solving the above-mentioned problems, and as a result of earnest and research, as a result of irradiating the invention to running water, the inventor for water in a 24-hour bath water purification and circulation device sterilizes water in the circulation path. An ultraviolet sterilization apparatus, provided in the circulation path, provided with an inlet and an outlet, through which water circulates, and a removable outer tube base that closes an opening of the housing; An outer tube that is watertightly fixed to the central portion of the outer tube base, the tip protruding into the housing is closed and the upper end is opened, and passes through a sterilization line and blocks bath water ingress; while detachable via the engagement portion with respect to the tube base Ichisu, and a lamp base which is fixed a UV lamp emitting a sterilization line in the central portion, the opening portion of the upper end of the UV lamp the outer tube Insert the lamp base into the outer tube base. The outer tube base with a lamp base, which is integrally mounted and fixed to the housing, can be attached to and detached from the housing. By providing an ultraviolet sterilizer for water in a 24-hour bath purification and circulation device characterized in that a lighting circuit for generating a high-frequency high voltage for lighting the UV lamp is housed in the lamp base. The UV lamp and outer tube of the UV sterilizer for water can be attached to and detached from the main body of the device, and the UV lamp can be detached from the outer tube to prevent damage to the UV lamp The tube and UV lamp can be cleaned safely and reliably. Specifically, when removing the outer tube, the UV lamp and the outer tube can be separated if the release operation is not carried out consciously. And have the structure, the release operation is to be after the outer tube removed and the UV lamp and the outer tube of water for UV sterilizer as detachable prevents damage to the UV lamp, is obtained by solving the above problems.
[0006]
Embodiment
FIG. 1 is a sectional view of an ultraviolet sterilizer for water according to the present invention. The UV sterilizer for water is provided with a UV lamp 1 that emits a sterilization line of about 260 nm. Specifically, the UV lamp 1 is a straight tube type that is easy to manufacture, provided with electrodes 1a and 1a at both ends, one end (upper end) made of synthetic resin, and held by a petri dish-shaped lamp base 2, A lead wire 1b as a nickel-plated wire that can be soldered to the outside protrudes from the electrode 1a (upper end side), the upper end penetrates the lamp base 2, and the bare wire 1c from the electrode 1a on the other side (lower side) Also penetrates the lower cylinder portion 2a of the lamp base 2. In addition, engaging projections 5a, 5a,... Are formed around the bottom surface of the bottom of the lamp base 2 and have a flange formed at the lower end at three or four equal parts.
[0007]
The outer tube 3 has one end (lower end) closed, the upper end (upper end) opened, and is made of quartz or the like that allows easy passage of sterilization lines, and blocks the penetration of bath water into the UV lamp 1. The outer tube 3 is held and sealed to the inner periphery of the central hole portion of the bowl-shaped outer tube base 4 via an adhesive or packing 6, and the outer tube 3 and the outer tube base 4 are fixed in a watertight manner. . In the vicinity of the periphery of the outer tube base 4, engaged holes 5b, 5b,... To which the engaging protrusions 5a, 5a,... Engage appropriately are formed, and the engaging protrusions 5a and the engaged holes 5b are formed. Collectively, the engaging portion 5 is used. Thus, the lamp base 2 is fixed to the outer tube base 4 via the engaging portion 5. The outer tube base 4 is configured to be separable from the lamp base 2 as required. Specifically, the shaft portion of the engagement protrusion 5a is deformed so as to be disengaged from the engagement hole 5b so as to release the engagement of the engagement protrusion 5a, and the lamp base 2 and the outer tube base 4 Are separated.
[0008]
The housing 7 has a cylindrical shape, the upper end of which is fixed to the opening 20a of the main body 20 of the bath water purifying and circulating apparatus for 24 hours, and an inner threaded portion 7a is formed on the inner periphery of the upper end, and the body nearby. A bath water inlet 7b is provided at the part, and an outlet 7c is provided at the other end (lower end). An outer screw portion 4a provided on the outer periphery of the outer tube base 4 is screwed into the inner screw portion 7a of the housing 7, and the outer tube base 4 with the lamp base 2 and the housing 7 are configured to be detachable. .
[0009]
Reference numeral 8 denotes an inverter circuit as a lighting circuit for generating a high frequency high voltage housed in the lamp base 2 and lighting the UV lamp 1, which is connected to the UV lamp 1 and is connected to the lamp base 2. It is provided so as to be embedded with a synthetic resin. Reference numeral 8a denotes an inverter circuit lid of the inverter circuit 8, which prevents the user from directly touching the inverter circuit 8 that generates a high frequency high voltage. The inverter circuit lid 8a is bonded or screwed to the lamp base 2.
[0010]
Further, a lead wire 10a is connected from the inverter circuit 8 to the control circuit 9 of the main body, and is connected by a connector 10b on the way. The current flowing through the connector 10b and the lead wire 10a is a low voltage current, which prevents dangers such as electric shock and sparks when the connector 10b is attached and detached.
[0011]
Reference numerals 11a and 11b denote magnetic proximity switches which are built in the inverter circuit 8. Reference numerals 12a and 12b denote magnets, which are respectively attached to a cover 13 and 20 main bodies which will be described later. This is a safety circuit that performs control to stop the current of the inverter circuit 8 when the magnets 12a and 12b are separated from the magnetic proximity switches 11a and 11b. The magnet 12a is attached to a cover 13 that prevents the circuit and the lamp from getting wet when the UV lamp 1 is exposed to water such as a shower. Therefore, when the cover 13 is removed, the current of the inverter circuit 8 is stopped. The cover 13 is detachably provided on a cylindrical joint piece 20 b provided on the main body 20.
[0012]
Further, when the lamp base 2 with the UV lamp 1 and the outer tube base 4 are separated from the main body 20 of the bath water purification / circulation apparatus for 24 hours, the current of the inverter circuit 8 is stopped. Thus, the reason for providing two safety circuits for the inverter circuit 8 is to prevent the inverter circuit 8 from operating even when the cover 13 is attached with the UV lamp 1 separated from the main body. is there.
[0013]
Next, a method for removing the outer tube during cleaning and replacing the UV lamp 1 will be described. First, the cover 13 is removed (FIG. 2), the connector 10b is removed, and the inverter circuit lid 8a is rotated counterclockwise. Since the inverter circuit lid 8a is fixed to the lamp base 2, and the lamp base 2 is fixed to the outer tube base 4, the lamp base 2 and the outer tube base 4 are also rotated counterclockwise at the same time and provided on the outer periphery thereof. The lamp unit including the UV lamp 1, the outer tube 3, and the inverter circuit 8 is lifted up and separated from the housing 7 by the outer screw portion 4a (see FIGS. 3 and 4). The outer tube 3 is cleaned as it is. Alternatively, the lamp unit is replaced, and the assembly is completed by setting it back in the reverse procedure.
[0014]
Next, when replacing the UV lamp 1, the lamp unit including the UV lamp 1, the outer tube 3, and the inverter circuit 8 is lifted and removed from the housing 7 in the same procedure as described above, and then the engagement portion 5 is pushed from the outside toward the center by the finger, the engaging projection 5a is bent, the engaging projection 5a is removed from the engaged hole 5b, the engagement is released, and the outer tube base with the outer tube 3 is removed. 4 and the lamp base 2 with the UV lamp 1 are separated vertically (see FIGS. 5 and 6). After the UV lamp 1 is taken out in this way, the UV lamp 1 is cleaned, and this time, the assembly is completed by setting it in the reverse procedure.
[0015]
The engaging portion 5 has been described as an embodiment as a means in which the outer tube base 4 with the outer tube 3 and the lamp base 2 with the UV lamp 1 are configured to be appropriately separable. It may be connected to the outside of the joint portion 5 with a pin or the like, or may be connected as a screw in the opposite direction of the external thread portion 4 a of the outer tube base 4. Further, the lamp base 2 and the outer tube base 4 may be magnetized by a magnet or the like, and the separation is not limited to the embodiment as long as it can be separated.
[0016]
As another embodiment of the control relationship, the inverter circuit 8 is described as being built in the lamp base 2, but there is a type in which the inverter circuit 8 is provided separately and connected by a lead wire or the like. . In particular, when a hot cathode type UV lamp 1 is used, the voltage flowing through the UV lamp 1 is lower than that of the cold cathode type, so there is no safety problem even if a connector is provided on the lead wire extending from the lamp section. Further, in the above embodiment, the connector 10b for replacing the lamp unit is provided. However, it is assumed that the lamp replacement is performed by a serviceman without providing a means for separating the lead wires such as the connector. When replacing the lamp, the lead wire may be cut and connected again with a closed terminal or the like. Furthermore, although the connector 10b has been described here, it is sufficient if it can separate the power supply and signal supply line from the inverter circuit 8 to the lamp. included.
[0017]
【The invention's effect】
According to the first aspect of the present invention, there is an advantage that the UV lamp 1 can be prevented from being damaged first, and the outer tube 3 and the UV lamp 1 can be suitably cleaned. Specifically, since the frequency of directly touching the lamp portion is reduced, not only the breakage of the lamp portion is reduced, but also the outer tube cleaning work becomes easy. Until now, the structure of the lamp part has been designed with the assumption that the lamp is inserted into and out of the outer tube many times. By using this method, the UV lamp 1 is inserted at the time of replacement when handling the lamp that requires attention. The lamp removal operation is performed only once, and the disposal of the UV lamp 1 that has already run out of waste is handled, so that not only care is not required, but also the number of reinforcement members, etc. that are supposed to be taken in and out of the UV lamp 1 is reduced. Great effect on cost reduction.
[0018]
Further, in the first aspect of the invention, the UV lamp 1 is fixed to the lamp base 2 and the outer tube 3 is fixed to the outer tube base 4, and the lamp base 2 and the outer tube base 4 are fixed via the engaging portion 5. Therefore, at first, the UV lamp 1 and the outer tube 3 can be taken out from the housing 7 at the same time. Thereby, the UV lamp 1 in the outer tube 3 can be safely taken out without being damaged.
[0019]
Then, after taking out, the engaging portion 5 can be released and the UV lamp 1 can be taken out from the outer tube 3. With this, the UV lamp 1 can be cleaned. At this time, when the UV lamp 1 is taken out from the outer tube 3, the outer tube 3 is a member that has already been taken out and is relatively light. By handling both, the UV lamp 1 can be reliably prevented from being damaged. . As described above, the outer tube 3 and the UV lamp 1 can be cleaned, and the UV lamp 1 can be reliably prevented from being damaged.
[0020]
2. The ultraviolet sterilizer for water in a 24-hour bath water purification and circulation device according to claim 1, wherein a lighting circuit that generates a high-frequency high voltage for lighting the UV lamp is housed in the lamp base. Therefore, in the case of a lamp that operates with a high-frequency high-voltage current such as an inverter system, the lead wire of the high-frequency high-voltage part between the lamps from the circuit can be covered, and there is an effect that a very safe structure can be achieved, and The circuit configuration can be simplified.
[Brief description of the drawings]
1 is a cross-sectional view of the main part of the present invention. FIG. 2 is a cross-sectional view of the main part of the present invention with the cover removed. FIG. 3 is a UV lamp, an outer tube, a lamp base, and an outer tube. FIG. 4A is a perspective view of the UV lamp, and the outer tube, the lamp base, and a part of the outer tube base portion are partially cut away. FIG. 5 is a cross-sectional view of a UV lamp with a lamp base removed from an outer tube with an outer pipe base. FIG. 6A is a perspective view with a part of the UV lamp with a lamp base omitted. ) Is a partially cutaway perspective view of an outer tube with an outer tube base. FIG. 7 is a cross-sectional view of the main part of another embodiment of the present invention.
DESCRIPTION OF SYMBOLS 1 ... UV lamp 2 ... Lamp base 3 ... Outer tube 4 ... Outer tube base 5 ... Engagement part 7 ... Housing

Claims (2)

An ultraviolet sterilizer for water in a 24-hour bath water purification and circulation device that sterilizes water in a circulation path by irradiating the flowing water, provided in the circulation path, and provided with an inlet and an outlet and circulates A housing that allows water to pass through, a removable outer tube base that closes the opening of the housing, and a watertightly fixed central portion of the outer tube base, and a tip that protrudes into the housing is blocked. In addition, the outer tube that opens at the upper end and passes through the sterilization wire and blocks bath water entry, and is detachable from the outer tube base through the engaging portion, and radiates the sterilization wire to the central portion. to a lamp base which is fixed a UV lamp, the UV lamp the lamp base is inserted into the opening of the upper end of the outer tube and fixed by mounting integrated in the outer tube base over scan, out with the lamp base the tube base Ichisu the detachable to said housing Water ultraviolet ray sterilizer at 24 hours bath water purification circulation and wherein the. 2. The ultraviolet sterilizer for water in a 24-hour bath water purifying and circulating apparatus according to claim 1, wherein a lighting circuit for generating a high-frequency high voltage for lighting the UV lamp is housed in the lamp base.

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