阅读说明：本技术 阀芯开启信号检测装置及方法 (Valve core opening signal detection device and method ) 是由 张德 王洪伟 于 2020-07-31 设计创作，主要内容包括：本发明提供了一种阀芯开启信号检测装置及方法。该装置包括：机械阀芯其滑动阀上装有永磁体,在活动阀工作行程内,永磁体在扇形区域内运动；主板,其上安装有磁场霍尔位置传感器,定时通过磁场霍尔位置传感器检测永磁体的绝对位置,并且根据检测到的永磁体的绝对位置,计算阀芯的开启比例。本发明提供的阀芯开启信号检测装置及方法能够实现对阀芯开启比例的电控控制。(The invention provides a valve core opening signal detection device and a method. The device includes: the sliding valve of the mechanical valve core is provided with a permanent magnet, and the permanent magnet moves in a fan-shaped area in the working stroke of the movable valve; the main board is provided with a magnetic field Hall position sensor, the absolute position of the permanent magnet is detected by the magnetic field Hall position sensor at regular time, and the opening ratio of the valve core is calculated according to the detected absolute position of the permanent magnet. The valve core opening signal detection device and the method provided by the invention can realize the electric control of the valve core opening proportion.)

1. A valve core opening signal detection device is characterized by comprising:

the mechanical valve core is provided with a permanent magnet on the internal slide valve, and the magnet moves in the sector area in the opening or closing process of the movable valve;

the main board is provided with a magnetic field Hall position sensor, the onboard single chip microcomputer detects the absolute position of the permanent magnet through the magnetic field Hall position sensor at regular time, and the opening ratio of the valve core is calculated according to the detected absolute position of the permanent magnet.

2. The valve element opening signal detecting device according to claim 1, wherein one end of the detecting device is connected to the mechanical valve element, and a housing is provided outside the detecting device.

3. The valve element opening signal detecting device according to claim 2, wherein the housing is provided with two valve element positioning holes for fixing the mechanical valve element.

4. The valve core opening signal detection device according to claim 2, wherein the main plate is installed at the center of the detection device.

5. The device for detecting the opening signal of the valve element according to claim 1, wherein the main board is further used for calculating the ratio of the cold water to the hot water according to the detected absolute position of the permanent magnet.

6. The apparatus for detecting a valve element opening signal according to claim 1, wherein the main plate calculates an opening ratio of the valve element according to the following formula:

wherein x represents the abscissa of the absolute position of the permanent magnet, y represents the ordinate of the absolute position of the permanent magnet, b represents the calculated opening ratio of the valve body, b_maxWhich represents the maximum value of the opening ratio of the valve body.

7. The device for detecting the opening signal of the valve element according to claim 1, wherein the main board calculates the ratio of the hot water to the cold water according to the following formula:

wherein x represents the abscissa of the absolute position of the permanent magnet, y represents the ordinate of the absolute position of the permanent magnet, a represents the calculated ratio of cold and hot water, a_maxIndicating the maximum value of the ratio of cold to hot water.

8. A valve core opening signal detection method is characterized by comprising the following steps:

the absolute position of a permanent magnet equipped in the valve core is detected at regular time through a magnetic field Hall position sensor arranged on a main board;

and calculating the opening ratio of the valve body according to the detected absolute position of the permanent magnet.

9. The valve core opening signal detection method according to claim 8, wherein calculating the opening ratio of the valve body according to the detected absolute position of the permanent magnet includes:

calculating the opening ratio of the valve body according to the following formula:

wherein x represents the abscissa of the absolute position of the permanent magnet, y represents the ordinate of the absolute position of the permanent magnet, b represents the calculated opening ratio of the valve body, b_maxWhich represents the maximum value of the opening ratio of the valve body.

10. The valve element opening signal detection method according to claim 8, further comprising:

calculating the ratio of the cold water to the hot water according to the following formula:

wherein x represents the abscissa of the absolute position of the permanent magnet, y represents the ordinate of the absolute position of the permanent magnet, a represents the calculated ratio of cold and hot water, a_maxIndicating the maximum value of the ratio of cold to hot water.

Technical Field

The invention relates to the technical field of fluid control, in particular to a valve core opening signal detection device and method.

Background

The invention relates to a water tap switch, which comprises a handle, a valve core, a sealing rubber pad, a communicating hose and other components, wherein the handle is pulled to drive the valve core to slide in a working cavity to change the sectional area of a cold and hot water port during working so as to control the water outlet size and the cold and hot water mixing ratio, and the electric control function is restricted when needing to be upgraded.

The existing faucet mainly controls the water flow and the proportion of cold and hot mixed water in a mechanical valve core mode by changing the sectional area of the valve core.

To realize intelligent upgrading, the more general control mode at present is that the mechanical water mixing valve goes out water after the water or cuts off the water through an electromagnetic valve control, can't realize the automatically controlled regulation of the water proportion of mixing of cold and hot water.

Disclosure of Invention

The invention aims to provide a valve core opening signal detection device and method, which can realize the electric control of the valve core opening proportion.

In order to solve the above technical problem, the present invention provides a valve element opening signal detection device, comprising: the mechanical valve core is provided with a permanent magnet on the internal slide valve, and the magnet moves in the sector area in the opening or closing process of the movable valve; the main board is provided with a magnetic field Hall position sensor, the onboard single chip microcomputer detects the absolute position of the permanent magnet through the magnetic field Hall position sensor at regular time, and the opening ratio of the valve core is calculated according to the detected absolute position of the permanent magnet.

In some embodiments, the detection device is connected at one end to the mechanical valve cartridge, and a housing is provided external to the detection device.

In some embodiments, the housing is provided with two spool positioning holes for fixing the mechanical spool.

In some embodiments, the main board is mounted in the center of the detection device.

In some embodiments, the main plate is further configured to calculate a hot and cold water mixing ratio based on the detected absolute position of the permanent magnet.

In some embodiments, the main plate calculates the opening ratio of the valve body according to the following formula:

wherein x represents the abscissa of the absolute position of the permanent magnet, y represents the ordinate of the absolute position of the permanent magnet, b represents the calculated opening ratio of the valve body, b_maxWhich represents the maximum value of the opening ratio of the valve body.

In some embodiments, the main board calculates the ratio of hot and cold water mixing according to the following formula:

wherein x represents the abscissa of the absolute position of the permanent magnet, y represents the ordinate of the absolute position of the permanent magnet, a represents the calculated ratio of cold and hot water, a_maxIndicating the maximum value of the ratio of cold to hot water.

In addition, the invention also provides a valve core opening signal detection method, which comprises the following steps: the absolute position of a permanent magnet equipped in the valve core is detected at regular time through a magnetic field Hall position sensor arranged on a main board; and calculating the opening ratio of the valve body according to the detected absolute position of the permanent magnet.

In some embodiments, calculating the opening ratio of the valve body based on the detected absolute position of the permanent magnet includes: calculating the opening ratio of the valve body according to the following formula:

wherein x represents the abscissa of the absolute position of the permanent magnet, y represents the ordinate of the absolute position of the permanent magnet, b represents the calculated opening ratio of the valve body, b_maxWhich represents the maximum value of the opening ratio of the valve body.

In some embodiments, further comprising: calculating the ratio of the cold water to the hot water according to the following formula:

wherein x represents the abscissa of the absolute position of the permanent magnet, y represents the ordinate of the absolute position of the permanent magnet, a represents the calculated ratio of cold and hot water, a_maxIndicating the maximum value of the ratio of cold to hot water.

After adopting such design, the invention has at least the following advantages:

the invention converts the opening signal of the valve body into the electric signal, and the control mode of the valve core is upgraded from the traditional mechanical mode to the electric control mode, thereby realizing the intelligent control which can not be realized by the original mechanical mode.

Drawings

The foregoing is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description.

Fig. 1 is a perspective view of a valve element opening signal detection device according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a sector area provided by an embodiment of the present invention.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

The invention positions the opening position of the valve core in a magnetic field positioning mode, calculates the opening proportion data of the mixing proportion of cold water and hot water and the flow rate by positioning the position information of the permanent magnet of the valve core, converts the data into a control command and sends the control command to the electric control water mixing valve assembly to realize the aim of electric transmission control. The purpose of data communication with an electric control water mixing valve or an electric control upper computer is easy to realize, and the traditional functional mechanical valves cannot realize the data communication.

The valve core signal detection device comprises the following components, wherein a detector shell (1) is provided with 2 valve core positioning holes (2), a main board (3) and a valve core assembly (4) with a permanent magnet.

Install a permanent magnet on the movable valve in case assembly (4), the during operation case moves with the magnet in the case together, the case is in the operating interval, the magnet movement track is a sector area, the position of origin of coordinates (0,0) is the position when the valve body closes, microcontroller on the mainboard detects the absolute position of magnet for the origin through board year magnetic field hall position sensor at interval, calculate the opening flow and the cold and hot water proportion data of valve body, wherein the valve body opens the proportion and calculates the ratio of the straight-line distance between magnet position and the origin and the biggest opening distance through the trigonometric function, the cold and hot water proportion is the ratio between magnet position and the contained angle a and the biggest contained angle of y axle at the origin.

The valve body opening ratio calculation formula is as follows:

the cold and hot water mixing ratio calculation formula:

wherein x represents the abscissa of the absolute position of the permanent magnet, y represents the ordinate of the absolute position of the permanent magnet, b represents the calculated opening ratio of the valve body, b_maxThe maximum value of the opening ratio of the valve body is shown, a represents the calculated mixing ratio of cold water and hot water, and a_maxIndicating the maximum value of the ratio of cold to hot water.

The hot water proportion is increased and reduced when the value of x is larger than 0 side cold water proportion, otherwise, the hot water proportion is increased and reduced when the value of x is smaller than 0, and the cold-hot water mixing ratio is 1:1 when the value of x is equal to 0.

The mode of converting the opening signal of the valve body into the electric signal, the control mode of the valve core is upgraded from the traditional mechanical mode to the electric control mode, and the intelligent control which cannot be realized by the original mechanical mode can be realized.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention in any way, and it will be apparent to those skilled in the art that the above description of the present invention can be applied to various modifications, equivalent variations or modifications without departing from the spirit and scope of the present invention.