KR20160003748U - composite sensor unit for water purifier and water purifier of thereof - Google Patents

composite sensor unit for water purifier and water purifier of thereof Download PDF

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Publication number
KR20160003748U
KR20160003748U KR2020150002574U KR20150002574U KR20160003748U KR 20160003748 U KR20160003748 U KR 20160003748U KR 2020150002574 U KR2020150002574 U KR 2020150002574U KR 20150002574 U KR20150002574 U KR 20150002574U KR 20160003748 U KR20160003748 U KR 20160003748U
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KR
South Korea
Prior art keywords
water
water purifier
water level
temperature
sensor unit
Prior art date
Application number
KR2020150002574U
Other languages
Korean (ko)
Inventor
박지홍
Original Assignee
주식회사 제임스텍
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Publication date
Application filed by 주식회사 제임스텍 filed Critical 주식회사 제임스텍
Priority to KR2020150002574U priority Critical patent/KR20160003748U/en
Publication of KR20160003748U publication Critical patent/KR20160003748U/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00—Measuring or testing not otherwise provided for
    • G01D21/02—Measuring two or more variables by means not covered by a single other subclass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
    • G01K7/22—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a non-linear resistance, e.g. thermistor

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Nonlinear Science (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

A complex sensor unit for a water purifier and a water purifier equipped with the same are disclosed. The composite sensor unit for a water purifier according to an embodiment of the present invention includes a temperature sensing unit configured to include a thermistor for sensing temperature and a water level sensing unit configured to include a capacitance element for sensing water level, The water purifier having the composite sensor unit for a water purifier according to the embodiment of the present invention further comprises a water purifier so that the combined sensor unit for the water purifier is installed in a water bottle.

Description

TECHNICAL FIELD The present invention relates to a composite sensor unit for a water purifier and a water purifier including the same,

The present invention relates to a combined sensor unit for a water purifier and a water purifier equipped with the same to detect the water level and the temperature of a purified water tank.

Generally, the water purifier is provided so that the amount of water contained in the inner water tub is maintained within a predetermined range.

Therefore, a water temperature sensor for detecting the temperature of the purified water and a water level sensor for detecting the water level of the water tank are installed in the water tank inside the water purifier.

Korean Patent Laid-Open Publication No. 10-1992-003009 discloses an installation structure of a temperature sensor and a water level sensor installed in a water purifier.

Korean Patent Publication No. 10-1992-0003009

However, in the structure in which the temperature sensor and the water level sensor are separately installed at different positions of the water purifier water tank as described in the above publication, the installation workability of the temperature sensor and the water level sensor is deteriorated, and the temperature sensor and the water level sensor The wiring work to be connected becomes difficult, and there is a limit in improving the productivity of the water purifier.

Embodiments of the present invention are intended to provide a complex sensor unit for a water purifier and a water purifier equipped with the same to improve the productivity of the water purifier.

Also, it is intended to provide a complex sensor unit for a water purifier and a water purifier equipped with the same, which are excellent in temperature and water level detection precision.

According to an aspect of the present invention, there is provided a composite sensor unit for a water purifier, which is provided so that a temperature sensing unit configured to include a thermistor for temperature sensing and a water level sensing unit configured to include a capacitance element for water level sensing .

The composite sensor unit for a water purifier may further include a PCB on which a temperature and water level sensing unit is installed, and the water level sensing unit further includes a pair of copper pads, wherein the thermistor and the electrostatic capacitance element comprise a pair of Can be mounted at positions spaced apart from each other at both ends of the length of the PCB.

Wherein the composite sensor unit for a water purifier further comprises a PCB on which the temperature and water level sensing unit is installed, the electrostatic capacitance element is mounted on a surface of one end surface in the longitudinal direction of the PCB, And may be connected to the PCB through the lead wire so as to be positioned outside the other end in the longitudinal direction of the PCB.

According to another aspect of the present invention, And a complex sensor unit for a water purifier provided in the water purifier so as to form a body together with a temperature sensing unit configured to include a thermistor for temperature sensing and a water level sensing unit provided to include a capacitance element for water level sensing, A water purifier may be provided.

The complex sensor unit for a water purifier may be installed at the bottom of the water purifier side wall corresponding to the lowest water level position of the water purifier.

Since the temperature sensing unit and the water level sensing unit are provided so as to form a single body, the combined sensor unit for a water purifier according to the embodiment of the present invention can be easily installed in a water tank and can improve the productivity of the water purifier.

In addition, the gap between the thermistor and the electrostatic capacitance element, which are provided together in the PCB, can effectively be ensured and the temperature and water level detection accuracy can be improved.

1 is a configuration diagram of a water purifier equipped with a composite sensor unit for a water purifier according to an embodiment of the present invention.
2 is a side cross-sectional view showing the structure of the composite sensor unit for a water purifier of Fig.
Fig. 3 is a plan sectional view showing the structure of the composite sensor unit for a water purifier of Fig. 1. Fig.
4 is a plan sectional view showing a structure of a composite sensor unit for a water purifier according to another embodiment of the present invention.
5 is a plan sectional view showing the structure of another composite sensor unit for a water purifier according to still another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are provided to fully convey the idea of the present invention to a person having ordinary skill in the art to which the present invention belongs. The present invention is not limited to the embodiments shown herein but may be embodied in other forms. In order to clarify the present invention, it is to be understood that the drawings are not to scale, and the size of the components may be slightly exaggerated in order to facilitate understanding.

The composite sensor unit 100 for a water purifier according to one embodiment of the present invention is installed in the water tub 2 of the water purifier 1 to detect the temperature and the water level of the water. Is employed in the water purifier 1 shown in Fig.

As shown in FIG. 1, the water purifier 1 has an appearance through a body not shown, and a water bottle 2 may be provided inside the body (not shown).

The purified water tank 2 is connected to an outlet 3 which is an integer and extends to the outside of the main body (not shown), and a water intake cock 4 for extracting purified water is installed at the end of the outlet 3 as an integer.

A cooler 5 for cooling the water in the water tub 2 and a heater 6 for heating the water in the water tub 2 can be installed in the main body (not shown) have.

In the case of a water purifier mainly used for either cold water or hot water, it may be provided with only one of the cooler 5 and the heater 6. The cooler 5 and the heater 6 can be used together with the water purifier 1. At this time, the water purifier 1 is provided with one water purifier 2, It may be variously adjusted to be in a cold state, or it may be provided in a form having a cold water storage and a hot water storage tank.

The cooler 5 and the heater 6 are installed inside the water tub 2 and the cooler 5 and the heater 6 are installed outside the water tub 2, The purified water may be returned to the water tub 2 in a state of being cooled or heated.

A water supply device 8 in the form of a valve for interrupting the flow of water supplied to the water purification tank 2 may be provided in the middle of the water supply pipe 7 for guiding the water of the external water supply source to the water purification tank 2.

The control unit 9 controls the temperature sensing unit 110 and the water level sensing unit 120. The control unit 9 controls the operation of the heater 6 and the cooler 5 and the water supply unit 8 described above, The cooler 5, and the water supply device 5 based on the temperature and the water level information of the purified water tank 2 sensed through the water tank 2.

That is, the control unit 9 senses the temperature of the purified water measured through the temperature sensing unit 110 and controls the operation of the cooler 5 and the heater 6 in consideration of the sensed purified water temperature, Can be maintained within a range.

When the water level of the purified water tank 2 measured by the water level sensing unit 120 is lower than the reference value, the controller 9 activates the water supply device 8 to supply a predetermined amount of water to the water tank 2 , The water level of the water tub 2 can be maintained within a certain range.

Meanwhile, the temperature sensing unit 110 and the water level sensing unit 120 can be easily installed in the water tank 2, and the associated wiring can be simplified, thereby contributing to the productivity improvement of the water purifier 1. The composite sensor unit 100 for a water purifier is formed.

The temperature sensing unit 110 may be configured to include a thermistor 10 and the water level sensing unit 120 may include a pair of copper pads 31 and 32 including a copper material, And the configurations of the temperature and water level sensing units 110 and 120 are mutually formed through a PCB 50.

The thermistor 10 of the temperature sensing unit 110 is an element using a semiconductor property whose electric resistance greatly changes even in a small temperature change, and is advantageous in sensing a minute temperature change of the purified water. The thermistor 10 may be a SMD (Surfacing Mounting Device) type so as to be mounted by an automatic soldering method.

The pair of copper pads 31 and 32 constituting the water level sensing unit 120 are mounted on the top and bottom surfaces of the PCB 50 so as to be spaced apart from each other in the increasing and decreasing direction of the level of the water tank 2, Is mounted on one of the pad portions 31 and 32 and is linearly moved in accordance with the increase or decrease in the water level of the water tub 2 in a state where a constant voltage is applied to the pair of copper pads 31 and 32 The water level of the water tank 2 is sensed by a method of detecting the changed capacitance.

A cable 60 for power and signal application is connected to the temperature and water level sensing units 110 and 120 at the end of the PCB 50 toward the opposite side of the thermistor 10 and a capacitor, The devices 71 can be further mounted.

When the resistance heat generated during the operation of the thermistor 10 is transmitted to the capacitance element 40, there is a fear that the error in the water level detection value of the capacitance element 40 becomes large.

Therefore, in order to prevent this, it is preferable that the thermistor 10 and the electrostatic capacitance element 40 are mounted at positions where the both ends of the length of the PCB 50 are spaced apart from each other with the copper pads 31 and 32 interposed therebetween .

The composite sensor unit 100 for a water purifier includes a cover 80 provided to cover and protect the PCB 50 and an epoxy 90 filled in the cover 80 for sealing the temperature and water level sensing units 110 and 120 As shown in FIG.

The cover 80 is made of an open-ended molded material and accommodates the inside of the package 50. The epoxy 90 can be filled into the cover 80 and cured in this state.

The combined sensor unit 100 for a water purifier is provided with a purified water tank 2 at a position corresponding to the lowest water level of the purified water tank 2 so as to be able to detect an appropriate water replenishment timing at a proper time point through the water level sensing unit 120, And may be installed at the bottom of the side wall.

1, an installation hole 2a may be provided at the bottom of the side wall of the water tub 2 so that the water sensor 80 may be installed. In the water sensor, And can be coupled to the water tub 2 so that the tip of the thermistor 10 from the outside is located inside the installation hole 2a. At this time, the holder 102 can be fastened to the end of the cover 80 outside the side wall with the O-ring 101 interposed therebetween. In the holder 102, the complex sensor unit 100 for the water purifier is disposed around the water tub 2 A fixing hole 102a may be provided so as to be fixed.

4 to 5, the gap between the thermistors 10 ', 10 "and the electrostatic capacitive element 40 can be more clearly ensured by the composite sensor unit 200, 300 for a water purifier according to another embodiment of the present invention As shown in Fig.

4 to 5, the thermistor 10 'may be of the radial type as shown in FIG. 4 for securing the space between the thermistors 10' and 10 'and the electrostatic capacitive element 40 , And the lead wires 20 and 20 'may be extended in the form of a diode (DIODE) type as shown in FIG. 5. These thermistors 10' and 10 '' may be elongated lead wires 20 'and 20' (PCB) 50 via the PCB 50, as shown in FIG. In the case of the radial type, the periphery of the thermistor 10 'may be sealed through the glass sealing layer 11.

The capacitive element 40 is mounted on the surface of one end of the PCB 50 and the thermistors 10 'and 10' are connected to the lead wires 20 'and 20' '. So as to be located outside the PCB 50 on the opposite side of the capacitive element 40 along the longitudinal direction of the PCB 50 via the PCB 50.

Therefore, in such a structure of the complex sensor units 200 and 300 for a water purifier, the thermistors 10 'and 10' 'can be spaced apart from the capacitive element 40 to the outside of the PCB 50 so that the thermistors 10' and 10 ' The gap between the elements 40 can be more clearly ensured.

The remaining structures of the water level sensing unit 120 and the cover 80 are the same as those of the first embodiment described above except for the shape of the temperature sensing units 110 'and 110' May be provided in the same manner as the example.

1: Water purifier 2: Water purifier
5: cooler 6: heater
8: water supply device 9:
10: thermistor 31,32: copper pad
40: Capacitive element 50:
80: Cover 90: Epoxy
100: Composite sensor unit for water purifier 110: Temperature sensing unit
120: Water level sensing unit

Claims (5)

A combined sensor unit for a water purifier, comprising: a temperature sensing unit configured to include a thermistor for sensing temperature; and a water level sensing unit configured to include a capacitive element for water level sensing. The method according to claim 1,
(PCB) on which the temperature and water level sensing unit is installed,
Wherein the level sensing unit further comprises a pair of copper pads,
Wherein the thermistor and the electrostatic capacitance element are mounted at positions spaced apart from each other by a length " of the length of the package with the pair of copper pads interposed therebetween. The method according to claim 1,
(PCB) on which the temperature and water level sensing unit is installed,
Wherein the electrostatic capacitance element is mounted on a surface of one end surface in the longitudinal direction of the PCB,
And the thermistor is connected to the opposite side of the capacitive element in a state where the thermistor is spaced apart from the PCB through a lead wire so as to be located outside the other end in the longitudinal direction of the PCB. Water trough; And
A water purifier comprising: a temperature sensor unit including a thermistor for temperature sensing; and a water level sensor unit including a capacitive element for water level sensing, . 5. The method of claim 4,
Wherein the complex sensor unit for a water purifier is installed at a bottom of the water purification tub side wall corresponding to a lowest water level position of the water purification tank.

KR2020150002574U 2015-04-21 2015-04-21 composite sensor unit for water purifier and water purifier of thereof KR20160003748U (en)

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Application Number Priority Date Filing Date Title
KR2020150002574U KR20160003748U (en) 2015-04-21 2015-04-21 composite sensor unit for water purifier and water purifier of thereof

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Application Number Priority Date Filing Date Title
KR2020150002574U KR20160003748U (en) 2015-04-21 2015-04-21 composite sensor unit for water purifier and water purifier of thereof

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110829733A (en) * 2019-10-24 2020-02-21 珠海凯邦电机制造有限公司 Control panel, motor and air conditioning system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR920003009A (en) 1990-07-25 1992-02-29 배영조 Cold and Hot Water Equipment

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR920003009A (en) 1990-07-25 1992-02-29 배영조 Cold and Hot Water Equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110829733A (en) * 2019-10-24 2020-02-21 珠海凯邦电机制造有限公司 Control panel, motor and air conditioning system

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