KR20100005359U - Meter for detecting quantity - Google Patents

Abstract

Meter for detecting the flow rate of the present invention, a rotating body that rotates in accordance with the flow rate; A magnetic body rotating in the same manner as the rotation of the rotating body and having numeric pads on a circumferential surface thereof; A sensing unit positioned in correspondence with the magnetic body and sensing a rotation value of the magnetic body; And a controller configured to display a rotation value of the rotating body corresponding to the flow rate using the rotation value of the magnetic body.

Description

Meter for detecting quantity

The present invention relates to a flow rate detection meter, and more particularly, to a flow rate detection meter that mechanically reads a measured value accurately by a non-contact method using a magnetic material and displays the numerical value displayed on the meter.

The flow rate measuring meter used in general is to measure the amount of water consumed by a house or various buildings so that an appropriate fee can be imposed according to the amount of water used. It can be divided into meter or electronic meter.

Such a mechanical meter is configured to mechanically count the rotation of a rotating body which is disposed in the main body and rotates according to the flow of the flow through the gear units arranged in the metering unit. Although there is an advantage, it is not easy to check the metered water usage because it is installed in the form of landfill in the wall or floor of a house or various buildings for the metering of the flow rate, and it is not possible to display the exact water consumption according to the mechanical counting. have.

In addition, since the electronic meter detects the rotational force of the rotating body as a sensor and displays it on the liquid crystal panel, the electronic meter can be manufactured compactly by integrating the internal circuit of the metering unit, and also has high reliability, stable and remote detection of the reading value. It has the advantage of being possible, but it has the disadvantage of being expensive and easily causing a breakdown.

In addition, recently, a meter using a substrate or a hall sensor has been proposed to detect a more accurate flow rate, and such a meter is displayed by counting the rotation of the rotating body by the flow rate to display the usage amount or the rotating body detected by the hall sensor. Displays the usage amount by classifying the rotation detection value of each step. However, as a meter using a substrate or a Hall sensor according to the prior art is installed in a buried form, malfunction occurs due to humidity, so that rotation of the rotating body is incorrectly sensed, and the actual rotation of the rotating body is not accurately detected. As the classification width of the rotation detection value is wide, there is a problem that the error between the actual rotation of the rotating body and the rotation value displayed on the meter is too large to accurately display the actual water usage. Next, a general flow rate detection meter will be described with reference to FIG. 1.

1 is a view showing a general mechanical water meter. Here, FIG. 1 is a view showing a water meter installed in a buried form on the floor of a house or various buildings.

Referring to FIG. 1, the meter 120 is installed in a buried shape in a hole 110 formed in the bottom 100, and rotates in response to a flow rate according to the use of water. The second to fifth rotating bodies 124, 126, 128, 130 rotating in stages corresponding to the rotation of the entire body 122, respectively. The circumferential surfaces of the rotating bodies 122, 124, 126, 128, and 130 include numeric pads on which numbers from 0 to 9 are recorded.

Since the meter 120 is installed in the bottom 100 in a buried form as described above, it is not easy to read the numbers recorded on the circumferential surfaces of the rotating bodies 122, 124, 126, 128, and 130 for checking the water usage. It is. In addition, when the sensor detects and displays the recorded number or the rotation of the rotating bodies 122, 124, 126, 128 and 130 for easy reading of the numbers recorded on the circumferential surfaces of the rotating bodies 122, 124, 126, 128 and 130, external environmental factors For example, a malfunction of the sensor due to humidity or the like may occur, thereby incorrectly detecting the sensor, and the sensor may not accurately detect rotation of the rotors 122, 124, 126, 128, and 130, and thus may not reliably read water usage. In addition, an error between the rotation of the actual rotating bodies 122, 124, 126, 128, and 130 and the rotation displayed on the display unit may not accurately display the actual water usage.

Accordingly, an object of the present invention is to provide a flow rate detection meter that displays the rotation of a rotating body corresponding to the flow rate to be accurately detected by a non-contact method using a magnetic material to be easily identified.

Apparatus of the present invention for achieving the above object, a rotating body corresponding to the flow rate; A magnetic body rotating in the same manner as the rotation of the rotating body and having numeric pads on a circumferential surface thereof; A sensing unit positioned in correspondence with the magnetic body and sensing a rotation value of the magnetic body; And a controller configured to display a rotation value of the rotating body corresponding to the flow rate using the rotation value of the magnetic body.

Another apparatus of the present invention for achieving the above object, the first meter for detecting the flow rate through a rotating body that rotates corresponding to the flow rate and the number pads on the circumferential surface; And a rotating value of the rotating body corresponding to the flow rate using a magnetic body that rotates in the same manner as the rotation of the rotating body, a sensing unit that detects the rotating value of the magnetic body in a non-contact manner, and a rotating value of the magnetic body. And a second meter for displaying the flow rate numerically.

The present invention accurately detects the rotation of the rotating body by the flow rate by using a magnet and minimizes the error range between the rotating value of the rotating body and the rotating value displayed on the meter, so that the actual usage can be easily identified according to the numerical value. However, you can charge accurately and easily according to the actual usage. In addition, the present invention, by detecting the rotation of the rotating body by using a magnetic material to prevent the malfunction of the meter due to humidity and inaccurate detection, and can be easily installed at a low cost, and easily to the existing meter Can be replaced.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail. In the following description, only parts necessary for understanding the operation according to the present invention are described, and it should be noted that the description of other parts will be omitted so as not to distract from the gist of the present invention.

The present invention proposes a meter for detecting flow rate. Here, in the embodiment of the present invention to be described later described as an example for a water meter, the meter proposed in the present invention is applicable to all meters for detecting the flow rate. In addition, the present invention proposes a meter that accurately detects the rotation of the rotating body corresponding to the flow rate, and accurately displays the numerical value of the detected rotation value without error.

At this time, the meter according to the embodiment of the present invention, the sensing unit accurately detects the rotation value of the magnetic body that rotates in the same manner as the rotation of the rotating body corresponding to the flow rate of the water, the user without error detected the rotation value detected by the sensing unit The numbers should be marked correctly so that they can be easily identified. In addition, the meter according to the embodiment of the present invention, the sensing unit detects the rotation in a non-contact method using a magnetic material in order to prevent malfunction due to external environmental factors, such as humidity and the resulting incorrect, the rotation sensed by the sensing unit By accurately displaying the values up to one unit by using the values, the actual usage is accurately displayed by minimizing the error between the rotation of the rotating body and the rotation value displayed on the meter. Next, the meter according to the embodiment of the present invention will be described in more detail with reference to FIG. 2.

2 is a view schematically showing a meter according to an embodiment of the present invention.

Referring to FIG. 2, the meter may include a first meter, that is, a mechanical meter 220 having rotating bodies that rotate in accordance with the flow rate of water, as described above with reference to FIG. 1; And a sensing unit 230 that detects a weighing value of the mechanical meter 220 (that is, rotation values of the rotating bodies) in a non-contact manner, and displays a rotation of the rotating bodies detected by the sensing unit 230. A second meter including a control unit 240 to display on the display unit 250, and a display unit 250 for displaying the rotation value of the rotating bodies, that is, the measured value of the mechanical meter 220 by the control unit 240 Include. Here, the detection unit 230 includes a magnetic body that rotates in the same manner as the rotation of the rotating body in conjunction with the rotating body of the mechanical meter 220, and detects the rotation value of the magnetic body in a non-contact manner. In addition, the rotating bodies include numeric pads each having a number from 0 to 9 recorded on the circumferential surface, and the mechanical meter 220 and the sensing unit 230 are embedded in the hole 210 formed in the bottom 200. Furnace installation, that is, the detector 230 is installed in the same place as the mechanical meter (220). In addition, the control unit 240 may be installed in the hole 210 or may be installed outside the floor 200, and the display unit 250 may be installed in a place where water usage can be easily checked. Next, the structure of the meter according to the embodiment of the present invention will be described with reference to FIG. 3.

3 is a view schematically showing the structure of a meter according to an embodiment of the present invention.

Referring to FIG. 3, the meter is a non-contact method of rotating a magnetic body 300 that rotates in association with a rotating body corresponding to a flow rate, and a rotating value of the magnetic body 300 that is rotated in the same manner as the rotation of the rotating body. As described above with reference to FIG. 2, the sensing unit 230 and the controller 240 for displaying the rotation of the rotating body by the flow rate using the rotation value detected by the sensing unit 230 as the display unit 250. Include. Here, the magnetic material 300 is correspondingly spaced apart from the sensing unit 230.

The magnetic material 300 includes an S pole portion 310 and an N pole portion 320, and includes numeric pads 332, 334, 336, 338, and 340 on the circumferential surface of which numbers from 0 to 9 are recorded. Here, the number pads 332, 334, 336, 338, and 340 existing on the circumferential surface of the magnetic body 300 correspond to the same numbers as the numbers recorded on the circumferential surfaces of the rotors 122, 124, 126, 128, and 130, as described above with reference to FIG. 1. In addition, among the number pads 332, 334, 336, 338, and 340 existing on the circumferential surface of the magnetic material 300, for example, the number pad 332 corresponding to zero is positioned at a reference point when the rotation value of the magnetic material 300 is detected. Is the junction point of the S-pole portion 310 and the N-pole portion 320. That is, the number pad 332 corresponding to 0 is located at the junction of the S-pole portion 310 and the N-pole portion 320.

In addition, the detector 230 may include a chip 232 for detecting a rotation value of the magnetic body 300 that rotates in the same manner as the rotation of the rotating body corresponding to the flow rate, and the magnetic body detected by the chip 232. And a pin 234 for transmitting the rotation value to the controller 240. In this case, as the magnetic body 300 is spaced apart and correspondingly located, the detector 230 detects a rotation value of the magnetic body 300 in a non-contact manner. In addition, the chip 232 detects a rotation value of the magnetic material 300 to a value of one unit or less by measuring a rotation angle of a reference point at which the number pad 332 corresponding to zero is located. Here, the chip 232 may be a magnetic rotary encoder having 64 quadrature pulses and an index output per revolution, and may be, for example, an AS5035 chip of austriamicrosystems. In addition, the operation of sensing the rotation value of the magnetic material 300 by the chip 232 will be described in detail with reference to FIG. 5, so a detailed description thereof will be omitted.

The control unit 240 receives the rotation value of the magnetic material 300 from the sensing unit 230 to a value of one unit or less, and a value of one unit or less using the received rotation value of the magnetic material 300. To be displayed on the display unit 250. That is, the controller 240 allows the display unit 250 to display water usage up to a value of one unit or less. Then, with reference to Figure 4 will be described in more detail the structure of the meter according to another embodiment of the present invention.

4 is a view schematically showing the structure of a meter according to another embodiment of the present invention.

Referring to FIG. 4, the meter is the same as the rotation of the rotating body 450, the magnetic body 400 rotating in conjunction with the rotating body 450, and the rotating body 450 corresponding to the flow rate. The sensing unit 230 for detecting the rotation value of the magnetic material 400 rotated in a non-contact manner, and the rotation value of the rotating body by the flow rate using the rotation value detected by the detection unit 230 as described in FIG. And a controller 240 for displaying the rotation on the display unit 250. Here, the magnetic body 400 is correspondingly spaced apart from the sensing unit 230, and in another embodiment of the present invention will be described as an example that the magnetic body 400 is a cylindrical magnet, but the rod-shaped magnet is May be

The rotating body 450 includes numeric pads 452, 454, 456, 458, and 460 on which a circumferential surface has a number of 0 to 9. The magnetic body 400 includes an S pole portion 410 and an N pole portion 420. It includes. Here, the number pads 452, 454, 456, 458, and 460 existing on the circumferential surface of the rotating body 450 correspond to the same numbers as the numbers recorded on the circumferential surfaces of the rotating bodies 122, 124, 126, 128, and 130, as described above with reference to FIG. 1. In addition, among the number pads 452, 454, 456, 458 and 460 existing on the circumferential surface of the rotating body 400, for example, the number pad 452 corresponding to 0 is located at a reference point when the rotation value of the magnetic body 400 is detected. The point becomes the junction point of the S-pole portion 410 and the N-pole portion 420. That is, the number pad 452 corresponding to 0 is located at the junction of the S-pole portion 410 and the N-pole portion 420.

In addition, the sensing unit 230 is a chip 232 for detecting a rotation value of the magnetic material 400 rotated in the same manner as the rotating body 450 that rotates in accordance with the flow rate, and the magnetic material detected by the chip 232 It includes a pin 234 for transmitting the rotation value of the control unit 240. In this case, as the magnetic body 400 is spaced apart from each other, the sensing unit 230 detects a rotation value of the magnetic body 400 in a non-contact manner. In addition, the chip 232 detects a rotation value of the magnetic material 400 to a value of one unit or less by measuring a rotation angle of a reference point at which the number pad 452 corresponding to zero is located. Here, the operation of detecting the rotation value of the magnetic material 400 by the chip 232 will be described in detail with reference to FIG. 5, so a detailed description thereof will be omitted.

The control unit 240 is received from the detection unit 230 to the value of one unit or less with respect to the rotation value of the magnetic body 300, using the received rotation value of the magnetic material 300 or less The value is displayed on the display unit 250. That is, the controller 240 allows the display unit 250 to display water usage up to a value of one unit or less. Next, an operation of sensing the rotation values of the magnetic bodies 300 and 400 by the detector 230 according to embodiments of the present invention will be described in detail with reference to FIG. 5.

5 is a view schematically showing the structure of a sensing unit according to embodiments of the present invention.

Referring to FIG. 5, the detector 230 controls a chip 232 for sensing rotation values of the magnetic bodies 300 and 400 and a rotation value of the magnetic bodies 300 and 400 detected by the chip 232. And a pin 234 for delivery. The chip 232 includes hall sensors 236, 236-1, 238, and 238-1 which detect rotation angles of the magnetic bodies 300 and 400 in an area 235 where the magnetic bodies 300 and 400 correspond to each other. Here, the first and second Hall sensors 236 and 236-1 are positioned on the x axis of the chip 232, and the third and fourth Hall sensors 238 and 238-1 are located on the y axis of the chip 232. Located.

When the magnetic bodies 300 and 400 are correspondingly positioned on the region 235 of the chip 232, the first and second Hall sensors 236 and 236-1 may rotate values of the magnetic bodies 300 and 400 based on the x-axis. The third and fourth Hall sensors 238 and 238-1 sense rotational values of the magnetic bodies 300 and 400 based on the y-axis. In more detail, the first and second Hall sensors 236 and 236-1 measure an angle between an x-axis and a reference point of the magnetic bodies 300 and 400 to measure rotation angles of the magnetic bodies 300 and 400. The third and fourth Hall sensors 238 and 238-1 measure rotation angles of the magnetic bodies 300 and 400 by measuring an angle between a y-axis and a reference point of the magnetic bodies 300 and 400. Here, as described above, the number pads 332 and 452 corresponding to 0 are located as junction points between the S pole portions 310 and 410 and the N pole portions 320 and 420 of the magnetic bodies 300 and 400.

When the hall sensors 236, 236-1, 238, and 238-1 measure the rotation angle, the chip 232 calculates the rotation values of the magnetic bodies 300 and 400 using, for example, Equation 1 below.

[Equation 1]

In Equation 1, Θ means rotation values of the magnetic bodies 300 and 400, X1 means an angle measured by the first Hall sensor 236, and X2 means that the second Hall sensor 236-1 The measured angle, Y1 means the angle measured by the third Hall sensor 238, Y2 means the angle measured by the fourth Hall sensor 238-1.

In this case, when the pads 332 and 452 corresponding to zero are positioned on the first hall sensor 236 and the reference point corresponds to the x-axis, the chip 232 corresponds to the rotation of the magnetic bodies 300 and 400. The rotation values of the magnetic bodies 300 and 400 are sensed as 0 and transferred to the controller 240 through the pin 234. When the magnetic bodies 300 and 400 rotate, the chip 232 measures the rotation angles of the magnetic bodies 300 and 400 by using the Hall sensors 236,236-1,238 and 238-1. The rotation value is sensed up to one unit or less and transmitted to the controller 240 through the pin 234. Accordingly, the controller 240 displays the rotation values of the magnetic bodies 300 and 400 that rotate in the same manner as the rotation of the rotating body by the flow rate on the display unit 250 up to one unit or less, thereby indicating the rotation value of the rotating body by the flow rate. To be displayed correctly.

Thus, the meter according to the embodiments of the present invention accurately detects the rotation of the rotating body by the flow rate in a non-contact manner through the magnetic bodies (300,400) and the sensing unit 230, in particular to rotate the same as the rotation of the rotating body By measuring the rotation angle of the magnetic bodies (300,400) to detect the rotation value of the magnetic bodies (300,400) up to one unit or less to accurately display the rotation value of the rotating body by the flow rate up to one unit or less.

On the other hand, in the detailed description of the present invention has been described with respect to specific embodiments, various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the embodiments described, but should be defined by the utility model registration claims as described below and equivalents to the utility model registration claims.

1 shows a general mechanical water meter.

2 is a view schematically showing a meter according to an embodiment of the present invention.

3 is a view schematically showing the structure of a meter according to an embodiment of the present invention.

4 is a view schematically showing the structure of a meter according to another embodiment of the present invention.

5 is a view schematically showing the structure of a sensing unit according to embodiments of the present invention.

Claims (13)

In the flow rate detection meter, A rotating body rotating in correspondence with the flow rate; A magnetic body rotating in the same manner as the rotation of the rotating body and having numeric pads on a circumferential surface thereof; A sensing unit positioned in correspondence with the magnetic body and sensing a rotation value of the magnetic body; And And a controller configured to display a rotation value of the rotating body corresponding to the flow rate using the rotation value of the magnetic body. The method of claim 1, The magnetic body includes a S-pole portion and an N-pole portion, and a specific number pad among the number pads is located at a junction point of the S-pole portion and the N-pole portion. The method according to claim 1 or 2, The sensing unit includes a Hall sensor located on the x-axis and y-axis, respectively, and the meter, characterized in that for measuring the rotation angle of the magnetic material using the Hall sensors. The method of claim 3, The pair of Hall sensors located on the x axis measure an angle between the reference point of the magnetic body and the x axis, and the pair of Hall sensors located on the y axis measure an angle between the reference point and the y axis. Featuring a meter. The method of claim 4, wherein The reference point is a meter, characterized in that the junction of the S-pole portion and the N-pole portion of the magnetic material. The method of claim 3, The sensing unit detects the rotation value of the magnetic body to one unit or less by using the rotation angle of the magnetic body, and the control unit to display the rotation value of the rotating body to one unit or less by using the rotation value of the magnetic body. Featuring a meter. In the flow rate detection meter, A first meter that rotates in response to the flow rate and detects the flow rate through a rotating body having numeric pads on a circumferential surface; And To display the rotation value of the rotating body corresponding to the flow rate by using a magnetic body that rotates in the same manner as the rotation of the rotating body, a sensing unit for detecting the rotation value of the magnetic body in a non-contact manner, and the rotation value of the magnetic body. And a second meter for displaying the flow rate numerically. The method of claim 7, wherein The magnetic body includes a S-pole portion and an N-pole portion, and a specific number pad among the number pads is located at a junction point of the S-pole portion and the N-pole portion. The method of claim 8, The magnetic body is a meter, characterized in that there is a number pad corresponding to each of the number pad of the rotating body on the circumferential surface. 10. The method according to claim 8 or 9, The sensing unit includes a Hall sensor located on the x-axis and y-axis, respectively, and the meter, characterized in that for measuring the rotation angle of the magnetic material using the Hall sensors. The method of claim 10, The pair of Hall sensors located on the x axis measure an angle between the reference point of the magnetic material and the x axis, and the pair of Hall sensors located on the y axis measure an angle between the reference point and the y axis. Meter characterized in that. The method of claim 11, The reference point is a meter, characterized in that the junction of the S-pole portion and the N-pole portion of the magnetic material. The method of claim 10, The sensing unit detects the rotation value of the magnetic body to one unit or less by using the rotation angle of the magnetic body, and the control unit to display the rotation value of the rotating body to one unit or less by using the rotation value of the magnetic body. Featuring a meter.

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