KR101242131B1 - A Separated-type Electronic Water Meter - Google Patents

Abstract

The present invention relates to an electronic water meter that measures the flow rate through the sensor unit for detecting the rotation of the permanent magnet, and displays and transmits the information, and more specifically, the flow unit through which water flows through the battery supplying power to the electronic water meter The battery can be easily replaced regardless of waterproofing by increasing the efficiency of maintenance, and it is easy to form the structure in which the PCB that controls the electronic meter is detachably attached to the slot of the remote display by mounting the control unit. It can be replaced or additionally installed to increase the efficiency of maintenance and upgrade, and effectively shields the permanent magnet and sensor from external magnetic force to block measurement disturbance by external magnetic force, and the impeller accommodated in the impeller can be rotated. To accurately shape the flow of water The controller analyzes whether the rotational stop speed of the permanent magnet detected by the sensor unit shows a sudden change outside the normal reference range and transmits the measured disturbance, disconnection, leakage, backflow, unused, etc. It is a separate type electronic water meter that can detect and notify immediately.

Description

A Separated-type Electronic Water Meter

The present invention relates to an electronic water meter that measures the flow rate through the sensor unit for detecting the rotation of the permanent magnet, and displays and transmits the information, and more specifically, the flow unit through which water flows through the battery supplying power to the electronic water meter The battery can be easily replaced regardless of waterproofing by increasing the efficiency of maintenance, and it is easy to form the structure in which the PCB that controls the electronic meter is detachably attached to the slot of the remote display by mounting the control unit. It can be replaced or additionally installed to increase the efficiency of maintenance and upgrade, and effectively shields the permanent magnet and sensor from external magnetic force to block measurement disturbance by external magnetic force, and the impeller accommodated in the impeller can be rotated. To accurately shape the flow of water The controller analyzes whether the rotational stop speed of the permanent magnet detected by the sensor unit shows a sudden change outside the normal reference range and transmits the measured disturbance, disconnection, leakage, backflow, unused, etc. It is a separate type electronic water meter that can detect and notify immediately.

Conventional water meters have used a method of mechanically measuring the flow of water and converting it to a meter scale, and this mechanical meter has to be individually metered by a meter reader, so that the cost of meter reading increases in real time. I had a problem that could not confirm the meter reading. Therefore, in order to compensate for the disadvantages of the mechanical meter, an electronic meter that transmits and receives meter reading information remotely by electronic reading has been newly introduced, and its use is being expanded.

1 is a cross-sectional view showing the structure of a conventional electronic water meter.

In general, since the electronic meter is an electronic device sensitive to moisture, referring to FIG. 1, the conventional electronic meter is mounted on the upper portion of the flow unit a, and includes a metering unit b including various PCBs (d) and batteries (f). ) Should be waterproof tightly, if you disassemble the tightly waterproof meter (b), the effect of waterproofing will disappear and cannot be reused. Therefore, when it is necessary to repair and repair the PCB (d), which is located inside the metering unit (b), which has been tightly waterproofed once, it is necessary to repair the whole waterproofing part of the metering unit (b). In particular, even in the case of the end of the life of the battery (f) for supplying power, only the battery (f) can not be replaced, the situation arises that the entire weighing unit (b) needs to be replaced, the maintenance efficiency is extremely low problem Is holding. In addition, in the case of upgrading the PCB (d) of the metering part (b) in accordance with the development of the remote meter reading method, there is also a problem that is not easy to upgrade and replace.

In addition, the electronic meter as described above is sensitive to the magnetic force generated from the outside, because the principle of the meter to detect the rotation amount of the magnet using a sensor, and therefore, for the purpose of frequency, using a strong magnet from the outside around the meter When the magnetic field is formed, the problem that the accurate meter reading cannot be made under the influence of the external magnetic force remains the problem to be solved most.

In particular, it is possible to completely shield both the permanent magnet and the sensor unit from the influence of the external magnetic force, and also promptly promptly alerts the user when an accurate reading fails due to the occurrence of external magnetic force that affects the meter reading. There is an urgent need for a meter system that can be formed, and it is difficult to remove the shielding means easily from the outside.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems,

An object of the present invention is to form a separate battery water meter that can easily replace the battery irrespective of waterproof by forming a battery for supplying power to the electronic water meter separated from the flow portion flowing water can increase the efficiency of maintenance To provide.

Another object of the present invention is to form a structure in which the PCB to control the electronic meter to be mounted on the control unit is detachable to the slot of the remote display portion can be easily replaced or added to the removable electronic that can increase the efficiency of maintenance and upgrade To provide a water meter.

Still another object of the present invention is to provide a separate type electronic water meter that can effectively block the permanent magnet and the sensor unit from external magnetic force to block measurement disturbance by external magnetic force.

Still another object of the present invention is to provide a separate type electronic water meter which is formed in a structure capable of blocking contact with the water formed in the impeller accommodation portion to increase durability.

Still another object of the present invention is to provide a separate type electronic water meter, which allows the impeller accommodated in the impeller accommodation part to accurately halves the flow of water flowing back to grasp the flow of the correct flow rate.

It is still another object of the present invention to provide a separate type electronic water meter which can shield external magnetic force more effectively, including a second cover film which is formed to be spaced apart from the protruding cover film by a predetermined distance to the cover part.

Still another object of the present invention is to form an insertion protrusion which is inserted into a predetermined space between the protruding cover film and the second cover film under the sensor coupling part in which the sensor part is located, and the second shielding film is located in the insertion protrusion. By enclosing around the membrane, it is possible to provide a separate type electronic water meter which can not easily remove the second shielding membrane and prevents corrosion.

Still another object of the present invention is to analyze and transmit a signal detected by the sensor unit to the external magnetic force by analyzing whether the rotation stop speed of the permanent magnet detected by the sensor unit indicates a sudden change outside the normal reference range It is to provide a separate type electronic water meter that can immediately detect and notify the disturbance caused by the measurement.

The separate type electronic water meter for achieving the above object of the present invention includes the following configuration.

The separate type electronic water meter according to the embodiment of the present invention is a battery for supplying power to the electronic water meter is separated from the flow portion flowing water is formed on the remote display, it is possible to easily replace the battery irrespective of waterproof Characterized in that the efficiency of the repair can be increased.

According to another embodiment of the present invention, the separate type electronic water meter according to the present invention analyzes and transmits a signal from a sensor unit, as well as receives a signal transmitted from the outside and a PCB on which a control unit for controlling the meter is mounted on the remote. Mounted in the slot of the display unit, it can be easily replaced or additionally mounted, characterized in that to increase the efficiency of maintenance and upgrade.

According to another embodiment of the present invention, the separable electronic water meter according to the present invention includes an impeller accommodation portion for accommodating the impeller to allow the impeller to rotate stably, and a cover portion covering an upper portion of the impeller accommodation portion containing the impeller. The impeller accommodating part further includes a first shielding film formed of a high permeability metal member, and a second shielding film formed of a high permeability metal member is formed on the cover part and surrounds the permanent magnet. In the shielding plate made of a high permeability metal member is located, it is possible to effectively shield the permanent magnet and the sensor unit from the external magnetic force to block the disturbance of measurement by the external magnetic force.

According to another embodiment of the present invention, in the separate type electronic water meter according to the present invention, the impeller accommodation portion is formed with an inlet for allowing water to flow into the side where the wing of the impeller is located, the upper side of the inlet An outlet part is formed to allow water to flow out, and the inlet part is formed by obliquely penetrating the side of the impeller accommodation part to allow the introduced water to flow in the impeller accommodation part, and the outlet part is introduced through the inlet part to accommodate the impeller. It characterized in that it is formed by obliquely penetrating the impeller receiving portion side in a direction opposite to the direction in which the inlet is formed so that the water flowing in the part flows out.

According to another embodiment of the present invention, in the separate type electronic water meter according to the present invention, both the side and the bottom of the impeller accommodation portion are formed in a double membrane structure, and the first shielding membrane is formed between the double membranes, The permeability metal member is characterized in that it can increase the durability by blocking contact with water.

According to another embodiment of the present invention, in the separate type electronic water meter according to the present invention, the cover part is formed with a protruding cover film protruding to accommodate the permanent magnet on the impeller, so that the second shielding film is the protruding cover film. It is formed around, and characterized in that it can shield the external magnetic force more effectively, including a second cover film is formed projecting spaced apart from the protrusion cover film at a predetermined interval.

According to another embodiment of the present invention, the separate type electronic water meter according to the present invention is inserted into a predetermined space between the protruding cover film and the second cover film in the lower portion of the sensor coupling portion in which the sensor unit is inserted and coupled And the second shielding film is located in the insertion protrusion to surround the protruding cover film, thereby preventing the second shielding film from being easily removed artificially and preventing corrosion.

According to another embodiment of the present invention, in the separate type electronic water meter according to the present invention, the control unit analyzes whether the rotation stop speed of the permanent magnet detected by the sensor unit indicates a sudden change outside the normal reference range and transmits the same. Thus, it is possible to immediately detect and notify the measurement disturbance by external magnetic force.

The present invention can obtain the following effects by the above-described embodiment, the constitution described below, the combination, and the use relationship.

The present invention is formed by separating the battery for supplying power to the electronic water meter from the flow rate of the water flow can easily replace the battery irrespective of waterproofing has the effect of increasing the efficiency of maintenance.

The present invention has an effect that can be easily replaced or additional mounting by forming a structure in which the control unit, etc., the PCB for controlling the electronic meter is detachably attached to the slot of the remote display unit to increase the efficiency of maintenance and upgrade.

The present invention has the effect of effectively blocking the permanent magnet and the sensor unit from the external magnetic force to block the measurement interference by the external magnetic force.

The present invention has the effect of increasing the durability by forming a structure that can block the contact film formed in the impeller accommodation portion to contact with water.

The present invention has an effect that can accurately grasp the flow of the flow rate by exactly half the flow of the water flowing in the impeller accommodated in the impeller accommodation portion.

The present invention has an effect of more effectively shielding the external magnetic force including a second cover film which is formed to be projected spaced apart from the protrusion cover film at a predetermined interval to the cover portion.

The present invention forms an insertion protrusion which is inserted into a predetermined space between the protruding cover film and the second cover film at the lower part of the sensor coupling part in which the sensor part is located, and the second shielding film is positioned in the insertion protrusion to surround the protruding cover film. By making it cheap, the second shielding film cannot be easily removed artificially and has an effect of preventing corrosion.

The present invention analyzes whether the control unit for analyzing and transmitting the signal detected by the sensor unit indicates whether the rotation stop speed of the permanent magnet detected by the sensor unit represents a sudden change out of the normal reference range, and transmits the measured disturbance by external magnetic force. It has the effect of immediately detecting and notifying.

1 is a cross-sectional view showing the structure of a conventional electronic water meter
Figure 2 is an exploded perspective view of a separate type electronic water meter in accordance with an embodiment of the present invention
3 is a cross-sectional view showing the structure of the separate type electronic water meter of FIG.
Figure 4 is a plan view of the impeller accommodation portion of the separate type electronic water meter according to an embodiment of the present invention
5 is a reference diagram showing a state in which the water flowing in the impeller receptacle flows out of the flow
Figure 6 is a cross-sectional view of the cover portion of the separate type electronic water meter in accordance with one embodiment of the present invention
7A and 7B are reference views illustrating another embodiment of the cover unit of FIG. 6.
8 is a reference diagram showing a state in which the sensor unit is seated in the recess of the cover portion
9 is a reference diagram showing another coupling relationship between the cover part and the metering part;

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the separate type electronic water meter according to the present invention will be described in detail.

2 is an exploded perspective view of a separate type electronic water meter according to an embodiment of the present invention, and FIG. 3 is a cross-sectional view illustrating a structure of the type electronic water meter of FIG. 2.

2 to 3, the separate type electronic water meter according to an embodiment of the present invention is attached to the impeller 10 that rotates by the flow of the flow of the rotation of the permanent magnet 20 to rotate with the impeller 10 Flow rate unit for measuring the flow rate through the sensor unit 510 for sensing the information and display and transmit the information, in particular the battery 540 for supplying power to the electronic water meter (this is the portion where water flows in the water meter) It means to collectively, and is separated from the casting body 60, the impeller accommodation portion 30, the cover portion 40 to be described later) remote display unit 70, which is external to the information measured by the meter, etc. It is installed on the outdoor side so that it can be easily recognized in the configuration, which may include the ability to send and receive data remotely as needed) to easily replace the battery 540 irrespective of waterproof Therefore, it is possible to increase the efficiency of maintenance, and also the PCB 520 on which the control unit 560 for receiving a signal transmitted from the outside as well as analyzing and transmitting the signal from the sensor unit 510 and controlling the meter is seated. It is mounted on the slot 710 of the remote display unit 70 can be easily replaced or additionally mounted, characterized in that to increase the efficiency of maintenance and upgrade.

The impeller 10 used in the separate type electronic water meter according to the present invention is configured to rotate by the flow of the flow rate, so that the rotation ratio is proportional to the flow rate of the flow rate, so that the number of rotations increases and the flow rate increases. If the flow is small, the number of revolutions is small so that the flow of rest can be measured. The impeller 10 has a wing portion 110 is formed so that it can rotate smoothly according to the flow of the flow rate, and the permanent magnet 20 to be described later is attached to the end protruding to the upper side of the wing portion 110 The sensor unit 510 to be described later to easily detect the rotation of the permanent magnet 20 to rotate together along the impeller 10 to be rotated by the wing 110. In order for the sensor unit 510 to be described later to more easily detect the rotation of the permanent magnet 20, the upper side of the impeller 10 is formed to protrude upward (to the point where the sensor unit 510 is located). desirable.

The permanent magnet 20 is attached to the impeller 10 is configured to rotate with the impeller 10, the permanent magnet 20 is rotated together with the impeller 10, the permanent magnet 20 Rotational speed of the impeller 10 is equal to, and therefore, the rotation of the permanent magnet 20 is to measure the number of revolutions of the impeller 10 when the rotational speed of the permanent magnet 20 is measured By measuring the number, the flow of the flow can be measured (that is, the flow rate is accurately measured). On the upper side of the permanent magnet 20 is a sensor unit 510 which detects the rotation of the permanent magnet 20 and can measure the number of revolutions thereof.

The sensor unit 510 is configured to detect the rotation of the permanent magnet 20, the flow rate for rotating the impeller 10 by detecting the number of revolutions of the permanent magnet 20 to rotate with the impeller 10 This will allow you to measure the amount of water used. To this end, the sensor unit 510 may be used, such as MR sensor, Hall sensor that can detect a change in the magnetic field as a change in voltage. In order to accurately measure, analyze, and provide a flow rate based on the signal detected by the sensor unit 510, the control unit 560, the control unit 560, etc., which analyzes and transmits the signal detected by the sensor unit 510 are provided. The PCB 520 is located, a battery 540 for providing power, and a display unit 550 for displaying information detected by the sensor unit 510 is required.

As described in the background art, the conventional electronic water meter includes a flow meter (b) including a control unit (e), a PCB (d), a battery (f) as shown in FIG. a) In order to protect the moisture sensitive composition while integrally combined with the upper part, the metering part (b) must be waterproofed tightly. When the metered part (b) which is tightly waterproofed is disassembled, the effect of waterproofing disappears. It becomes unusable. Therefore, when it is necessary to repair and repair the PCB (d), which is located inside the metering unit (b), which has been tightly waterproofed once, it is necessary to repair the whole waterproofing part of the metering unit (b). In particular, even in the case of the end of the life of the battery (f) for supplying power, only the battery (f) can not be replaced, the situation arises that the entire weighing unit (b) needs to be replaced, the maintenance efficiency is extremely low problem In the present invention, in order to solve the problem of the electronic meter attached to the conventional measuring unit (b) as described above, the rest of the control unit except for the sensor unit 510 for detecting the number of revolutions of the permanent magnet 20 Components 560, PCB 520, and battery 540 are all separated from the flow unit and formed on a separate remote display unit 70 remote from the flow unit.

That is, the components of the control unit 560, the PCB 520, the battery 540, etc., which are positioned on the remote display unit 70, are located in a waterproof structure such as a hermetic seal because there is no fear of direct contact with water or moisture. Each component is positioned in the remote display unit 70 without needing to be installed, and therefore, even in a replacement of a configuration that must be replaced after a certain period of time, such as a battery 540, separately installed in the remote display unit 70. Since only the battery 540 needs to be replaced, it is possible to improve inefficiency, such as replacing the entire metering unit for waterproofing as in the prior art.

In addition, the PCB 520 in which the control unit 560 for analyzing and transmitting a signal from the sensor unit 510 as well as receiving a signal transmitted from the outside and controlling the meter is mounted is also located in the slot of the remote display unit 70. 710) can be easily attached and detached according to the needs of maintenance and repair, thereby increasing the efficiency of maintenance, and for PDA according to the user's request or technology development or remote meter reading. In the case where it is necessary to replace or additionally mount a PCB or a remote metering PCB equipped with additional functions, the PCB 520 to be replaced or additionally mounted can be mounted in the slot 710 of the remote display unit 70. As a result, the utility of future upgrades will also increase.

Figure 4 is a plan view of the impeller accommodation portion of the separate type electronic water meter according to an embodiment of the present invention, Figure 5 is a reference diagram showing a state in which the water flowing in the impeller accommodation portion flows out and flows, Figure 6 7 is a cross-sectional view illustrating another embodiment of the cover part of FIG. 6, and FIG. 8 is a view in which the sensor part is seated in the recess of the cover part. 9 is a reference diagram showing another coupling relationship between the cover portion and the metering portion.

4 to 9, the separable electronic water meter according to an embodiment of the present invention includes an impeller accommodation portion 30 to accommodate the impeller 10 therein so that the impeller 10 can be stably rotated. In addition, the impeller 10 further includes a cover portion 40 covering an upper portion of the impeller accommodation portion 30, the impeller accommodation portion 30 is formed with a first shielding film 350 made of a high permeability metal member The cover part 40 is provided with a second shielding film 430 formed of a high permeability metal member surrounding the permanent magnet 20, and a shield made of a high permeability metal member on the sensor part 510. Plate 530 may be located. That is, the sensor unit 510 to detect the rotation of the permanent magnet 20 is to detect the flow of magnetic force emitted from the permanent magnet 20 bar, if it is affected by a separate magnetic force from the outside Since it is disturbed by the accurate measurement of the sensor unit 510, it is important to shield the external magnetic force so as not to be affected by the external magnetic force, in the present invention is to form additional configurations for this.

The impeller accommodation portion 30 is configured to accommodate the impeller 10 therein so that the impeller 10 can be stably rotated, and the impeller 10 is simply located within the casting body 60 through which water flows. If the impeller 10 is difficult to rotate stably in accordance with the flow of the flow it is difficult to accommodate the impeller 10 inside the impeller 10 seated on the impeller support 360 on the impeller receiving portion 30 to impeller In order for the 10 to rotate stably, the impeller accommodation portion 30 is required.

Particularly, in the present invention, the impeller accommodation portion 30 is not limited to a configuration that merely functions to accommodate the impeller 10 therein and to stably rotate the impeller accommodation portion 30. By using the shielding that the magnetic force from the outside affects the permanent magnet 20 or the sensor unit 510 to be described later, as well as the impeller 10 can rotate accurately according to the flow of the flow It is characterized in that to further demonstrate the function of, for this purpose, the impeller receiving portion 30 is formed in a double-layer structure consisting of both the outer film 310 and the inner film 320, the side and the bottom, The first shielding film 350 is formed between the double film, that is, the outer film 310 and the inner film 320 to block the high permeability metal member from contacting with water to increase durability, and also to increase the durability of the impeller 10. Wing On the side where the 110 is located is formed an inlet 330 to allow water to be introduced, the outlet 340 is formed on the upper side of the inlet 330 to allow the water to flow out, The inlet 330 is formed to obliquely penetrate the side of the impeller 30 so that the introduced water smoothly flows along the inside of the impeller 30, and the outlet 340 is the inlet 340. In order to allow the water flowing in through the 330 to flow smoothly in the impeller accommodation portion, the impeller accommodation portion 30 may be formed obliquely in a direction opposite to the direction in which the inflow portion 330 is formed. Can be.

The first shielding film 350 is an external magnetic shielding means made of a high permeability metal member formed in the impeller accommodation portion 30, and accommodates the impeller 10 to which the permanent magnet 20 is attached. Using the unit 30 is formed to shield the magnetic force from the outside affects the permanent magnet 20 to the sensor unit 510 to be described later. The high permeability metal member is a functional material that absorbs magnetic force or changes its path so that magnetic force does not penetrate or be released. The higher the permeability, the better the magnetic flux path. It can be shielded. To this end, the high permeability metal member is preferably an alloy consisting of two or more metals selected from the group consisting of iron, manganese, cobalt, nickel, nickel-iron alloy may be used as one embodiment. The first shielding film 350 may be formed in various forms. The impeller accommodating part 30 itself is made of a high permeability metal member, and thus the impeller accommodating part 30 itself blocks a magnetic force. In this case, the high permeability metal member should be additionally added to the high permeability metal member due to the characteristics of the impeller accommodation portion 30 which is in contact with water.

In addition, in the present invention, in order to prevent the first shielding film 350 formed of a metal member from contacting with water to improve durability, the impeller accommodating part 30 may include both an outer film 310 and an inner film ( A double film structure formed of 320 may be formed, and the first shielding film 350 may be formed between the double film, that is, the outer film 310 and the inner film 320. That is, as shown in FIG. 4, the impeller accommodating part 30 contacts the water flowing into the impeller accommodating part 30 and the outer membrane 310 contacting with the water flowing in the casting body 60. After forming a double film consisting of 320 and spaced apart a predetermined distance between the outer film 310 and the inner film 320, the first shielding film 350 is formed between the outer film 310 and the inner film 320 By doing so, the first shielding film 350 is made of a high permeability metal member to perform an inherent function of shielding external magnetic force as well as to easily prevent contact with water by the outer film 310 and the inner film 320 at all times. It can increase durability that can function for a long time without rust.

The inlet 330 is a portion that is formed to penetrate the side of the impeller accommodation portion 30 so that water flowing in the casting body 60 can be introduced into the impeller accommodation portion 30, in particular in Figure 5 As shown in the above, the inlet 330 is formed on the side of the impeller accommodation portion 30 at the height at which the wing 110 of the impeller 10 is positioned, as well as the inlet 330. By allowing the inflow portion 330 to be formed obliquely through the side of the impeller accommodation portion 30 so that water introduced through the impeller accommodation portion 30 can smoothly flow along the inside of the impeller accommodation portion 30, The water flowing through is guided in the direction of ① along the forming direction of the inlet 330 which is obliquely penetrated so that it can easily flow along the inner surface of the impeller accommodation portion 30. As the inlet 330 is formed along the side of the cylindrical impeller receiving portion 30 as shown in Figure 5 because they are all formed obliquely in the same direction through the inlet 330 impeller receiving portion The water flowing back 30 is difficult to flow out through the inlet 330, and thus, at the height at which the inlet 330 is formed, the inflowed water does not immediately flow out, and the impeller is accommodated smoothly along the ② direction. Since the inside of the part 30 can be circulated, the wing part 110 of the impeller 10 can accurately rotate the flow of the circulating water so as to rotate together so that the flow of the correct flow rate can be grasped.

The outlet portion 340 is formed above the inlet portion 330, that is, the impeller accommodation portion 30 is formed at a higher position than the place where the inlet portion 330 is formed and is introduced through the inlet portion 330 and is impeller accommodation portion. In order to allow the water flowing back to flow smoothly, in the present invention, as illustrated in FIG. 5, the outlet part 340 is formed above the inlet part 330 as well as the inlet part ( 330 is formed by obliquely penetrating the side of the impeller receiving portion 30 in a direction opposite to the direction formed obliquely, the water guided to the height where the outlet portion 340 is formed by flowing in the direction ②, the casting body 60 ) So as not to flow out in a direction opposite to the direction (ⓐ direction) of the water flowing through the inside and to flow smoothly along the ③ direction through the outlet 340 (ⓐ direction of the water flowing in the casting body 60) Water flow in compliance with To make it possible.

The cover part 40 is configured to cover an upper portion of the impeller accommodation portion 30 in which the impeller 10 is accommodated, and the cover part 40 may accommodate the permanent magnet 20 located above the impeller 10. A protruding cover film 410 is formed to protrude so that a second shielding film 430 is formed around the protruding cover film 410, and a second protruding shape is spaced apart from the protruding cover film 410 at a predetermined interval. The cover film 420 may be further formed.

The protruding cover membrane 410 is a portion which protrudes upward from the center of the cover portion 40 to accommodate the permanent magnet 20 positioned on the impeller 10, as shown in FIG. 2. 10 is a wing to position the permanent magnet 20, which transmits the magnetic force signal to the sensor unit 510 to be described later to the point as close as possible to the sensor unit 510 in order to be able to measure the rotation speed To form a portion protruding upward from the portion 110 and the shape of placing the permanent magnet 20 on the upper part, to accommodate the permanent magnet 20 located on the upper part of the impeller 10 The protruding cover film 410 is to be formed to protrude upward from the center of the cover portion (40). In addition, the upper portion of the protruding cover film 410 may be formed with a recessed portion 411 embedded in a predetermined length, which is the sensor unit 510 to be described later to detect the rotation of the permanent magnet 20 The sensor unit 510 rotates the permanent magnet 20 by minimizing the distance between the permanent magnet 20 and the sensor unit 510 by allowing the sensor 510 to detect rotation of the permanent magnet 20 by seating in the groove 411. It can be accurately detected to enable accurate measurement to improve the detection rate of the sensor unit 510.

The second shielding film 430 is formed around the cover part 40 to shield external magnetic force so as to prevent measurement disturbance from external magnetic force. More specifically, the permanent magnet 20 and In order to surround the sensor unit 510 so that the magnetic force from the permanent magnet 20 can be transmitted to the sensor unit 510 without being influenced by external magnetic force, it may be formed to surround the protruding cover layer 410. . As shown in FIG. 6, the second shielding film 430 is formed on the outer circumferential surface of the protruding cover film 410 by forming a separate film by a high permeability metal member (the description thereof is the same as described above). If necessary, as shown in FIG. 7A, an annular cylindrical member having a hollow therein is formed by a high permeability metal member and inserted into the protruding cover film 410. As shown in 7b, the second cover layer 420 may be formed around the second cover layer 420 to be described later. The second shielding film 430 formed in such a manner surrounds the permanent magnet 20 accommodated inside the protruding cover film 410 as shown in FIG. 4, and the permanent magnet 20 is influenced from external magnetic force. It is shielded to receive, and also the sensor unit 510 to be described later to be seated in the groove portion 411 as shown in Figure 8 also can be shielded from being affected by external magnetic force, the detection rate of the sensor unit 510 It will be possible to improve. For reference, the second shielding film 430 is not excluded from extending from the protruding cover film 410 to the second cover film 420 to be described later. In addition, the second shielding film 430 may be included in the sensor coupling part 511 to be described later, as shown in FIG. 9, so that a third party having a purpose of removal cannot be easily removed. It will be described in detail for the sensor coupling unit 511.

The second cover film 420 is a part formed to protrude from the cover cover 40 at a predetermined interval apart from the protruding cover film 410, as shown in FIG. 6, the second cover film 420. ) Is formed to form a space at a predetermined interval between the second cover film 420 and the protruding cover film 410 to further reduce the influence of external magnetic force. As described above, the second cover layer 420 is separately formed (shown in FIG. 7B) or extends from the protruding cover layer 410 as necessary to prevent external magnetic force. It can double the shielding effect. In addition, since the second cover layer 420 is formed, spaces formed on the bottom surface of the space formed between the protruding cover layer 410 and the second cover layer 420 are radially spaced apart as shown in FIG. 7B. Reinforcement portion 440 is formed to be protruded may be further formed, by increasing the durability of the impeller receiving portion 30 and the cover portion 40 located on the upper by forming the reinforcement portion 440 as described above. Make it work.

As described above, since the sensor unit 510 must accurately sense the change in the magnetic field originating from the permanent magnet 20, as shown in FIGS. 6 and 8, the protrusion cover film 410 The sensor unit 510 is provided by minimizing the distance between the permanent magnet 20 and the sensor unit 510 by detecting the rotation of the permanent magnet 20 by seating on the recess 411 formed by inserting a predetermined length in the upper portion thereof. It is possible to accurately detect the rotation of the permanent magnet 20 to enable accurate measurement to improve the detection rate of the sensor unit 510, the sensor unit 510 is also affected by external magnetic force When it is difficult to accurately detect the rotation of the permanent magnet 20 through the sensor unit 510 is difficult to accurately measure the flow rate because the shielding of the sensor unit 510 from the external magnetic force of all Above, the is to be shielded from an external magnetic force by the second shielding film 430 as shown in Fig.

In addition, the sensor coupling portion 511 to accommodate the sensor unit 510 is coupled to the upper cover portion 40, as shown in Figure 9 the projection cover film 410 in the lower portion of the sensor coupling portion 511 And an insertion protrusion 570 that is inserted into and bound to a predetermined space between the second cover film 420 and the second shielding film 430 is located in the insertion protrusion 570. By enclosing the circumference, the third shielding layer 430 may not be artificially easily removed by the third party. That is, as illustrated in FIG. 7A, when the second shielding film 430 is formed to be fitted around the protruding cover film 410, a third party having a purpose of counting is easily detached from the sensor coupling part ( When the second shielding film 430 is removed after the separation of the 511, and the sensor coupling part 511 is bound, the second shielding film 430 is recognized until the sensor coupling part 511 is separated. Since it is difficult to achieve the frequency, as shown in FIG. 9, the second shielding film 430 is formed in the insertion protrusion 570 formed under the sensor coupling part 511 as shown in FIG. 9. It can not be removed artificially easily. In addition, when the second shielding film 430 is positioned in the insertion protrusion 570 below the sensor coupling part 511, the second shielding film 430 may effectively prevent corrosion of the second shielding film 430 formed of a metal material. .

The shielding plate 530 is formed on the sensor unit 510 and is made of a high permeability metal member, and shields the external magnetic force from the upper part of the sensor unit 510 so that the external magnetic force is the sensor unit 510. It can prevent affecting. The shield plate 530 may be formed in a disc shape to cover the entire sensor coupling portion 511 is formed in a circular shape so as to cover the entire sensor unit 510. Since the high permeability metal member constituting the shielding plate 530 is the same material as described above, the description thereof will be omitted.

As described above, the control unit 560 analyzes and transmits the signal sensed by the sensor unit 510 and receives a control signal input from the outside and controls the meter accordingly, and also provides necessary information. The display unit 550 is configured to perform a function of controlling and controlling the overall meter according to the present invention. In particular, in the present invention, the control unit 560 detects the permanent magnet 20 by the sensor unit 510. By analyzing whether the rotational stop speed of) shows a sudden change outside the normal standard range and transmitting it, it is possible to immediately detect and notify the measurement disturbance, disconnection, leakage, backflow, unused by external magnetic force. .

In general, when the use of tap water is stopped in a home using tap water, the physical time to shut off tap water occurs, so that the flow (speed) of the flow rate flowing through the casting body 60 does not stop at a moment, but is constant. It is gradually reduced at a ratio within the range, and accordingly, the rotation stop speed of the permanent magnet 20 detected by the sensor unit 510 is also gradually reduced at a ratio within a predetermined reference range. However, in the case where the sensor unit 510 does not detect the rotation of the permanent magnet 20 due to the influence of external magnetic force, rather than stopping the use of water generated in the normal use process, the sensor unit 510 is used. Since the moment does not detect the rotation of the permanent magnet 20, the rotation stop speed of the permanent magnet 20 detected by the sensor unit 510 is a normal reference range (which is gradually reduced within a certain range) In the present invention, the control unit 560 analyzes whether the rotation stop speed of the permanent magnet 20 detected by the sensor unit 510 indicates a sudden change outside the normal reference range. By transmitting the information, it is possible to immediately detect and notify the measurement disturbance situation by external magnetic force so that accurate measurement can be made. In addition, the controller 560 also analyzes abnormal conditions such as when a power failure occurs between the sensor unit 510 and the controller 560, when a backflow occurs in the meter, or when a long-term unused state is maintained. The situation can be immediately detected and notified so that accurate measurements can be made.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Should be interpreted as belonging to the scope.

10 impeller 110: wing
20: permanent magnet
30: impeller receiving portion 310: outer film 320: inner film
330: inlet 340: outlet 350: first shield 360: impeller support
40: cover portion 410: protruding cover film 411: groove portion
420: second cover film 430: second shielding film 440: reinforcing portion
510: sensor unit 511: sensor coupling unit 520: PCB
530: shielding plate 540: battery 550: display 560: control unit 570: insertion projection
60: casting body
70: remote display unit 710: slot
* Prior art related codes
a: flow part b: metering part c: sensor part d: PCB
e: control unit f: battery g: display unit

Claims (8)

delete delete In the electronic water meter attached to the impeller rotating by the flow of the flow rate to measure the flow rate through the sensor unit for detecting the rotation of the permanent magnet rotates with the impeller, and to display and transmit the measured information,
The battery for supplying power to the electronic water meter is separated from the flow portion flowing water is formed on the remote display can easily replace the battery irrespective of waterproof,
In addition to analyzing and transmitting the signal from the sensor unit, a PCB on which a control unit for receiving a signal transmitted from the outside and controlling the meter is seated is mounted in a slot of the remote display unit, and can be easily replaced or additionally mounted.
It further includes an impeller accommodation portion for receiving the impeller inside so that the impeller can rotate stably, and a cover portion covering the upper portion of the impeller accommodation portion containing the impeller,
The impeller receiving portion is formed with a first shielding film made of a high permeability metal member, the cover portion is formed with a second shielding film made of a high permeability metal member surrounding the permanent magnet, the high permeability metal member on the sensor portion Separation type electronic water meter, characterized in that the shielding plate is located, it is possible to effectively shield the permanent magnet and the sensor unit from the external magnetic force to block the measurement disturbance by the external magnetic force. The method of claim 3, wherein the impeller accommodation portion
An inlet is formed on the side where the wing of the impeller is located, the inlet is formed to allow the water to flow out of the inlet is formed,
The inlet portion is formed by obliquely penetrating the impeller accommodation portion side so that the introduced water flows in the impeller accommodation portion, and the outlet portion is introduced through the inflow portion so that the water flowing back in the impeller accommodation portion may flow out. Separation type electronic water meter, characterized in that the inlet is formed by obliquely passing through the side of the impeller receiving portion in a direction opposite to the formed direction. The method of claim 4, wherein the impeller accommodation portion
Both side and bottom surfaces are formed in a double membrane structure, and the first shielding membrane is formed between the double membranes to prevent the high permeability metal member from contacting with water to increase durability. . The method of claim 3, wherein the cover portion
A protruding cover film is formed to protrude to accommodate the permanent magnet on the impeller, and the second shielding film is formed around the protruding cover film, and includes a second cover film protruding from the protruding cover film at a predetermined interval. Separate type electronic water meter, which can shield the external magnetic force more effectively. The method of claim 6, wherein the separate electronic water meter
An insertion protrusion is inserted into and fixed to a predetermined space between the protrusion cover film and the second cover film, and the second shielding film is positioned in the insertion protrusion at a lower portion of the sensor coupling part in which the sensor part is located. By enclosing, the second type of electronic water meter can not be easily removed artificially to prevent corrosion. The method of claim 3, wherein the control unit
Separating electronic type, characterized in that it can immediately detect and notify the measurement disturbance by external magnetic force by analyzing whether the rotation stop speed of the permanent magnet detected by the sensor indicates a sudden change out of the normal reference range and transmitting it Water meter.

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