Electromagnetic valve element position detection device based on Hall effect

Abstract

The invention discloses an electromagnetic valve element position detection device based on the Hall effect, and relates to the technical field of Hall detection.The electromagnetic valve element position detection device comprises a box body, a power source is installed at the upper end of the box body, a first space and a second space are formed in the box body, the cross section of the first space is rectangular, and the cross section of the second space is U-shaped; a first circular through hole is formed in the lower wall face, close to the second space, of the first space, a second circular through hole is formed in the lower wall face of the box body, a pair of sliding blocks are driven to move in a sliding groove through movement of a pair of buttons, and at the moment, opening of a pair of baffles and a radio frequency plate is completed through stretching of a rope; therefore, the trigger completes signal enhancement for detection through the action of the signal amplifier and the use of Hall induction, so that the use is controlled through a control signal, and convenient detection of the position of the valve core of the electromagnetic valve is completed through judgment and measurement of data through Hall detection.

Description

Technical Field

[0001] The present invention relates to the technical field of Hall effect detection, and in particular to a solenoid valve core position detection device based on the Hall effect. Background Art

[0002] The Hall effect describes the phenomenon in which, when a solid conductor is placed in a magnetic field and current flows through it, the charge carriers within the conductor are deflected to one side by the Lorentz force, generating a voltage (Hall voltage). The electric field force induced by the voltage balances the Lorentz force. The Hall effect confirms that the current within the conductor is caused by the movement of negatively charged particles (free electrons).

[0003] The solenoid valve core is the core component of the solenoid valve, which controls the valve's on / off state through electromagnetic force. The valve core is the component that directly controls the state of the solenoid valve, and the valve is opened or closed by the electromagnet attracting or pushing the valve core.

[0004] In order to facilitate the position detection of the solenoid valve core, a detection device with self-control protection and signal enhancement is designed to facilitate the detection of the solenoid valve core position, which requires the use of this solenoid valve core position detection device based on the Hall effect. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides a solenoid valve core position detection device based on the Hall effect, which solves the technical problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a solenoid valve spool position detection device based on the Hall effect, comprising a box body, a power supply installed at the upper end of the box body, a first space and a second space respectively defined inside the box body, the first space and the second space having rectangular and U-shaped cross-sections, a first circular through hole defined on the lower wall of the first space adjacent to the second space, a second circular through hole defined on the lower wall of the box body, a shielding component defined inside the second space, and a Hall sensing component installed inside the first space;

[0007] The Hall sensor assembly includes a Hall sensor, which is installed inside the first space. A magnet is installed on one end of the box body close to the Hall sensor, and a signal amplifier is installed on one side of the first space close to the first circular through hole.

[0008] Preferably, the shielding assembly includes a return spring, a pair of the return springs are installed on the inner side wall surface of the second space, a baffle is installed at one end of the pair of return springs, and a radio frequency board is installed on the pair of baffles.

[0009] Preferably, the second space is provided with a first rectangular through hole on the side wall surface near both ends of the box body, and the second space is provided with a slide groove near a pair of first rectangular through holes, a slider is installed inside the pair of slide grooves, a button is installed on the pair of sliders, a pair of ropes are installed at one end of the pair of sliders, a buckle is installed at one end of the two pairs of ropes, and the two pairs of buckles are respectively installed on a pair of baffles, and a trigger is installed at the lower end of the box body.

[0010] Preferably, the trigger, power supply, Hall sensor and signal amplifier are all electrically connected.

[0011] Beneficial effects

[0012] The present invention provides a solenoid valve core position detection device based on the Hall effect. When the present invention is used, in order to facilitate detection, a pair of buttons are moved, and the movement of the pair of buttons drives a pair of sliders to move inside the slide groove. At this time, the opening of a pair of baffles and a radio frequency board is completed by stretching the rope, so that the trigger is enhanced through the action of the signal amplifier and the use of Hall induction to complete the signal detection, so that the use is controlled by the control signal, and the convenient detection of the solenoid valve core position is completed through the determination of data through Hall detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural schematic diagram of a solenoid valve core position detection device based on the Hall effect described in the present invention.

[0014] In the figure: 1. Box; 2. Power supply; 3. Hall sensor; 4. Button; 5. Slider; 6. Signal amplifier; 7. Rope; 8. Baffle; 9. RF board; 10. Trigger; 11. Return spring; 12. Buckle; 13. Magnet. DETAILED DESCRIPTION

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0016] See also Figure 1The present invention provides a technical solution: a solenoid valve core position detection device based on the Hall effect, comprising a box body 1, a power supply 2 is installed at the upper end of the box body 1, a first space and a second space are respectively defined inside the box body 1, the cross-sections of the first space and the second space are rectangular and U-shaped respectively, a first circular through hole is defined on the lower wall of the first space near the second space, a second circular through hole is defined on the lower wall of the box body 1, a shielding component is defined inside the second space, and a Hall sensing component is installed inside the first space;

[0017] The Hall sensor assembly includes a Hall sensor 3, which is installed inside the first space. A magnet 13 is installed on one end of the box 1 near the Hall sensor 3, and a signal amplifier 6 is installed on one side of the first space near the first circular through hole.

[0018] This embodiment is further configured such that the shielding assembly includes a return spring 11, a pair of the return springs 11 are installed on the inner side wall surface of the second space, a baffle 8 is installed at one end of the pair of return springs 11, and a pair of RF boards 9 are installed on the baffles 8.

[0019] This embodiment is further configured such that the second space is provided with a first rectangular through hole on the side walls at both ends of the box body 1, and the second space is provided with a sliding groove at a position close to a pair of first rectangular through holes, a slider 5 is installed inside the pair of sliding grooves, a button 4 is installed on the pair of sliders 5, a pair of ropes 7 is installed at one end of the pair of sliders 5, a buckle 12 is installed at one end of the two pairs of ropes 7, and the two pairs of buckles 12 are respectively installed on a pair of baffles 8, and a trigger 10 is installed at the lower end of the box body 1.

[0020] This embodiment is further configured such that the trigger 10 , the power supply 2 , the Hall sensor 3 , and the signal amplifier 6 are all electrically connected.

[0021] The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process. The specific work is as follows.

[0022] Example: When in use, in order to facilitate detection, by moving a pair of buttons 4, the movement of the pair of buttons 4 drives a pair of sliders 5 to move inside the slide groove. At this time, the pair of baffles 8 and the radio frequency board 9 are opened by stretching the rope 7, so that the trigger 10 is enhanced through the action of the signal amplifier 6 and the use of the Hall sensor 3 to complete the signal monitoring, thereby controlling the use through the control signal;

[0023] When detecting the position of the solenoid valve core, the data is collected and arranged through the monitoring of the Hall sensor. At this time, according to each response data set, the corresponding interference difference value of the Hall sensor is obtained according to the corresponding data frequency fluctuation and the amplitude similarity of the mobile phone data;

[0024] At this time, the response gain parameter of each Hall sensor is obtained based on the proportion of the response interference difference value in the overall level;

[0025] Obtaining the response value of the array Hall sensor to the pressure plate state monitoring at each acquisition moment based on the response gain parameter and the magnetic field strength value;

[0026] A state monitoring threshold is obtained based on the difference between the maximum values of the magnetic field strength when the solenoid valve is in a closed state and an open state, and the state of the pressure plate is monitored based on the relationship between the response value and the state monitoring threshold;

[0027] Use the time-frequency analysis method to obtain the time-frequency curve of the monitoring data sequence of each Hall sensor to obtain the first-order difference sequence of each time-frequency response data sequence. Use the median of the first-order difference sequence as the division threshold, and use the elements corresponding to the first-order differences greater than the division threshold in the time-frequency response data sequence as the division time points. Divide the time-frequency curve according to the division time points, and use the sets of each data on the divided time-frequency curve as each response data set. The formula for the interference response value is: Where h x represents the interference response value of the xth response data set; l x and l i Respectively represent the coefficient of variation of the frequency values of all data points in the xth and ith response data sets; d x，i represents the Jaccard coefficient between the amplitudes of all data points in the xth and ith response data sets; n represents the number of response data sets, and i is the i-th response data set;

[0028] The interference response data sequence is a sequence composed of the interference response values of all response data sets of each Hall sensor; the formula for the response interference difference value is: Among them, k v represents the response interference difference value of the vth Hall sensor; p v and p c They represent the interference response data sequences of the vth and cth Hall sensors, dtw(p v , p c ) indicates p v and p c α represents the number of Hall sensors, and c represents the cth Hall sensor.

[0029] Calculate the sum of the response interference difference values of all Hall sensors, and calculate the ratio of the response interference difference value of each Hall sensor to the sum value as the response gain parameter of each Hall sensor

[0030] For all acquisition moments when the pressure plate is in the closed and open states during the solenoid valve status monitoring process, the minimum and maximum values of the magnetic field strength are obtained, the ratio of the difference between the minimum and maximum values and the number 2 is calculated, and the sum of the maximum value and the ratio result is used as the status monitoring threshold. If the calculated response value of the array Hall sensor to the pressure plate status monitoring is greater than the status monitoring threshold, it indicates that the solenoid valve spool is in the detection position; if the calculated response value of the array Hall sensor to the pressure plate status monitoring is less than or equal to the status monitoring threshold, it indicates that the solenoid valve spool is not in the monitoring position.

[0031] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

Claims

1. A solenoid valve core position detection device based on the Hall effect, comprising a housing (1), characterized in that: A power supply (2) is installed at the upper end of the box (1), and a first space and a second space are respectively provided inside the box (1), wherein the cross sections of the first space and the second space are rectangular and U-shaped respectively, a first circular through hole is provided on the lower wall of the first space close to the second space, a second circular through hole is provided on the lower wall of the box (1), a shielding component is provided inside the second space, and a Hall sensor component is installed inside the first space; The Hall sensor assembly includes a Hall sensor (3), the Hall sensor (3) is installed inside the first space, a magnet (13) is installed at one end of the box (1) close to the Hall sensor (3), and a signal amplifier (6) is installed on one side of the first space close to the first circular through hole.

2. The solenoid valve core position detection device based on the Hall effect according to claim 1, characterized in that: The shielding assembly includes a return spring (11), a pair of the return springs (11) are installed on the inner side wall surface of the second space, a baffle (8) is installed at one end of the pair of return springs (11), and a radio frequency board (9) is installed on the pair of baffles (8).

3. The solenoid valve core position detection device based on the Hall effect according to claim 2, characterized in that: The second space is provided with a first rectangular through hole on the side wall surface at both ends of the box body (1), and the second space is provided with a slide groove at a position close to a pair of the first rectangular through holes, a slider (5) is installed inside the pair of the slide grooves, a button (4) is installed on the pair of the sliders (5), a pair of ropes (7) are installed at one end of the pair of the sliders (5), a buckle (12) is installed at one end of the two pairs of the ropes (7), and the two pairs of buckles (12) are respectively installed on a pair of baffles (8), and a trigger (10) is installed at the lower end of the box body (1).

4. The solenoid valve core position detection device based on the Hall effect according to claim 1, characterized in that: The trigger (10), power supply (2), Hall sensor (3) and signal amplifier (6) are all electrically connected.

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