CN212007352U

CN212007352U - Corrosion-resistant water flow sensor

Info

Publication number: CN212007352U
Application number: CN201922180820.4U
Authority: CN
Inventors: 蒋建英
Original assignee: Shanghai Huli Automation Equipment Co ltd
Current assignee: Shanghai Huli Automation Equipment Co ltd
Priority date: 2019-12-07
Filing date: 2019-12-07
Publication date: 2020-11-24
Anticipated expiration: 2029-12-07

Abstract

The utility model provides a corrosion-resistant water flow sensor, which relates to the technical field of sensors and comprises a sensor body; the left side of the Hall element main body is fixedly connected with the flow guide assembly through threads. The utility model discloses in, through installing the magnetism impeller, can drive the magnetism impeller when rivers pass through in the hall element main part and rotate, the magnetism impeller rotates can produce the cutting magnetic line of force function with the hall element main part, linear sensing signal is exported, respond to the inside discharge of hall element main part, realize hall effect, and use hall element main part inner wall to adhere to the incrustation scale easily for a long time, the induction efficiency who leads to hall element main part and magnetism impeller is not strong, and magnetism impeller rotates under the drive of rivers and can make the draw-in groove board scrape hall element main part inner wall.

Description

Corrosion-resistant water flow sensor

Technical Field

The utility model relates to a sensor technical field especially relates to a corrosion-resistant water flow sensor.

Background

The water flow sensor mainly comprises a copper valve body, a water flow rotor component, a current stabilizing component and a Hall element, the water flow sensor is arranged at the water inlet end of the water heater and used for measuring the inflow water flow, when water flows through the rotor component, the magnetic rotor rotates, the rotating speed is changed linearly along with the flow, the Hall element outputs corresponding pulse signals to be fed back to the controller, the controller judges the water flow, the current of the proportional valve is adjusted and controlled, so that the gas flow is controlled through the proportional valve, the phenomenon that the gas water heater is warm in summer and cool in winter in the using process is avoided, one inner wall of the water flow sensor is adhered with more scale in the long-term using process, the scale is easily adhered to the rotor component, the scale can corrode the rotor component after being adhered for a long time, the scale easily blocks the controller from receiving the corresponding pulse, and the water flow sensor is often installed in water heater and gas heater, when making the interior moisture of circuit box change into the drop of water more, damages inside circuit board easily, and the circuit box is sealed relatively and leads to once the moisture gets into can't discharge.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a corrosion-resistant water flow sensor.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a corrosion resistant water flow sensor comprising; the left side of the Hall element main body is fixedly connected with the flow guide assembly through threads, and the upper part of the outer side surface of the Hall element main body is fixedly connected with the electric plate box through a nut;

a first rotating shaft is arranged at the center of the interior of the Hall element main body, magnetic impellers are fixedly connected to the periphery of the first rotating shaft, and a clamping groove plate is fixedly connected to one side of each magnetic impeller;

a support rod is fixedly connected to the inner wall of the flow guide assembly, a second rotating shaft is embedded into one side of the support rod, a rotating blade is fixedly connected to the outer side surface of the second rotating shaft, a sliding groove is formed in one side of the rotating blade, and a scraper is slidably connected to one side of the sliding groove;

the inside middle-end fixedly connected with moisture absorption board of electroplax box, the top left side fixedly connected with control circuit board of moisture absorption board, the inside right side below of electroplax box runs through and is provided with the small opening.

Preferably, the second rotating shaft is rotatably connected with the first rotating shaft.

Preferably, the clamping groove plate is concave, and a brush is arranged on the contact surface of the clamping groove plate and the inner wall of the Hall element main body.

Preferably, a cleaning brush is arranged on a contact surface of the scraping plate and the rotating blade, and a raw paint layer is coated on the outer surface of the rotating blade.

Preferably, a spring is disposed between the scraper and the second rotating shaft.

Preferably, moisture absorption particles are arranged between the moisture absorption plate and the inner bottom end of the electric board box, and the right side of the inner bottom end of the electric board box inclines downwards by ten degrees.

Preferably, the hall element main body is electrically connected with the control circuit board through a power line, and the hall element main body and the control circuit board are electrically connected with an external power supply through the power line.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, through installing the magnetism impeller, can drive the magnetism impeller when rivers pass through in the hall element main part and rotate, the magnetism impeller rotates can produce the cutting magnetic line of force function with the hall element main part, linear sensing signal of output, respond to the inside discharge of hall element main part, realize hall effect, and use hall element main part inner wall to adhere to the incrustation scale easily for a long time, the induction efficiency who leads to hall element main part and magnetism impeller is not strong, and magnetism impeller rotates under the drive of rivers and can make the draw-in groove board scrape hall element main part inner wall, when avoiding magnetism impeller card to inside and the inside incrustation scale corruption of hall element main part, improve the accuracy nature of control circuit board to the inside discharge measurement of hall element main part.

2. Secondly, through installing the moisture absorption board, in installing the water heater of many types because of the hall element main part, and produce steam easily behind the water heating, and steam gets into and leads to control circuit board to damage and corrode in the electroplax box easily, and the moisture absorption board can adsorb the moisture in the electroplax box, avoid causing corrosion damage to control circuit board, and the moisture absorption granule between moisture absorption board and the electroplax box bottom can further adsorb the moisture in the electroplax box, can flow to the small opening through the tiltability of electroplax box inside bottom when the wet gasification becomes water after the absorption and discharge to the external world, make the accessory in the electroplax box be difficult to by moisture corrosion damage.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic diagram of the internal structure of the Hall element main body of the present invention;

fig. 3 is a schematic view of the internal structure of the middle flow guiding assembly of the present invention;

fig. 4 is a schematic view of the local structure of the middle electric board box of the present invention.

In fig. 1 to 4, the correspondence between the part names or lines and the reference numbers is:

the device comprises a Hall element main body 1, a first rotating shaft 101, a magnetic impeller 102, a card slot plate 103, a flow guide assembly 2, a support rod 201, a second rotating shaft 202, a rotating blade 203, a sliding groove 204, a scraping plate 205, a spring 206, an electric board box 3, a moisture absorption plate 301, a control circuit board 302 and a leak hole 303.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Please refer to fig. 1 to 4; the utility model provides a corrosion-resistant water flow sensor, which comprises a sensor body; the Hall element comprises a Hall element main body 1, a flow guide assembly 2 and an electric plate box 3, wherein the left side of the Hall element main body 1 is fixedly connected with the flow guide assembly 2 through threads, and the upper part of the outer side surface of the Hall element main body 1 is fixedly connected with the electric plate box 3 through a nut;

a first rotating shaft 101 is arranged at the center of the interior of the hall element body 1, magnetic impellers 102 are fixedly connected to the periphery of the first rotating shaft 101, and a clamping groove plate 103 is fixedly connected to one side of each magnetic impeller 102;

a support rod 201 is fixedly connected to the inner wall of the flow guide assembly 2, a second rotating shaft 202 is embedded into one side of the support rod 201, a rotating blade 203 is fixedly connected to the outer side surface of the second rotating shaft 202, a sliding groove 204 is arranged on one side of the rotating blade 203, and a scraper 205 is slidably connected to one side of the sliding groove 204;

the inside middle-end fixedly connected with of electroplax box 3 absorbs moisture board 301, and the top left side fixedly connected with control circuit board 302 of absorbing moisture board 301 runs through the inside right side below of electroplax box 3 and is provided with small opening 303.

Furthermore, the second rotating shaft 202 is rotatably connected with the first rotating shaft 101, water flows firstly enter the flow guide assembly 2, the rotating blade 203 is driven by the rotating blade 203 to rotate, and meanwhile the second rotating shaft 202 is driven to rotate to drive the first rotating shaft 101, so that the water flows can more accurately drive the magnetic impeller 102 to rotate to perform a hall effect with the inside of the hall element main body 1 when passing through the flow guide assembly 2 and the hall element main body 1, and the control circuit board 302 can effectively measure the value of the current water flow.

Further, draw-in groove board 103 is "concave" word form, and draw-in

groove board

103 and 1 inner wall contact surface of hall element main part are provided with the brush, and when rivers drove magnetism impeller 102 pivoted through hall element main part 1 is inside, can make draw-in groove board 103 scrape through the brush to 1 inner wall of hall element main part, avoids using the incrustation scale to be stained with easily and attaches hall element main part 1 inner wall for a long time and cause corrosion damage.

Further, the contact surface of scraper blade 205 and rotating vane 203 is provided with the cleaning brush, and the surface of rotating vane 203 is smeared with the lacquer layer, and rivers can drive rotating vane 203 and rotate when passing through in the water conservancy diversion subassembly 2, and rotating vane 203 can make scraper blade 205 outwards move along spout 204 orbit when rotating, and scraper blade 205 can make the cleaning brush scrape rotating vane 203 surface at the in-process of outwards moving, avoids the incrustation scale to adsorb rotating vane 203 surface and leads to corrosion damage.

Further, a spring 206 is arranged between the scraper 205 and the second rotating shaft 202, when the water flow is closed and enters the guide assembly 2, the scraper 205 can move towards the second rotating shaft 202 by the elastic force contraction of the spring 206, so that the scraper 205 can scrape the outer surface of the rotating blade 203 back and forth, and the scale is further prevented from adhering to the outer surface of the rotating blade 203.

Further, be equipped with the moisture absorption granule between moisture absorption board 301 and the inside bottom of electroplax box 3, and electroplax box 3's inside bottom right side downward sloping ten degrees, make electroplax box 3 get into the moisture easily because of hall element main part 1's mounted position, and excessive moist air can exert an influence to control circuit board 302 and other accessories in electroplax box 3, cause the circuit short circuit, and moisture absorption board 301 can adsorb the moisture in electroplax box 3, and the moisture absorption granule can further adsorb the moisture in electroplax box 3, and the moisture formation water after the absorption can flow to the small opening 303 through the inclination of the inside bottom of electroplax box 3 and arrange to the external world, make the life of the accessory in electroplax box 3 improve.

Further, the hall element body 1 is electrically connected to the control circuit board 302 through a power line, and the hall element body 1 and the control circuit board 302 are electrically connected to an external power source through a power line.

The working principle is as follows: when the device is used, water flow firstly enters the flow guide assembly 2, the rotating blade 203 is driven by the rotating blade 203 to rotate, the second rotating shaft 202 is driven to rotate to drive the first rotating shaft 101, so that the water flow can more accurately drive the magnetic impeller 102 to rotate and carry out Hall effect with the interior of the Hall element main body 1 when passing through the flow guide assembly 2 and the Hall element main body 1, then, the magnetic impeller 102 can enable the clamping groove plate 103 to scrape the inner wall of the Hall element main body 1 through a brush when rotating, then, the rotating blade 203 can be driven to rotate when passing through the flow guide assembly 2, the scraping plate 205 can move outwards along the track of the sliding groove 204 when the rotating blade 203 rotates, the cleaning brush can scrape the outer surface of the rotating blade 203 when the scraping plate 205 moves outwards, and finally, the Hall element main body 1 is mostly installed in an electric water heater or a gas water heater, and in the water heater to water heating after produce steam and moisture easily and lead to entering easily in electroplax box 3, and the air of excess humidity can exert an influence to control circuit board 302 and other accessories in electroplax box 3, cause the circuit short circuit, and moisture absorption board 301 can adsorb the moisture in electroplax box 3, and the moisture absorption granule can further adsorb the moisture in electroplax box 3, and the moisture gasification after the absorption becomes water and can flow to leak hole 303 through the inclination of the inside bottom of electroplax box 3 and arrange to the external world.

The embodiments of the present application have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A corrosion resistant water flow sensor comprising; the Hall element comprises a Hall element main body (1), a flow guide assembly (2) and an electric plate box (3), and is characterized in that the left side of the Hall element main body (1) is fixedly connected with the flow guide assembly (2) through threads, and the electric plate box (3) is fixedly connected above the outer side face of the Hall element main body (1) through a nut;

a first rotating shaft (101) is arranged at the center of the interior of the Hall element main body (1), magnetic impellers (102) are fixedly connected to the periphery of the first rotating shaft (101), and a clamping groove plate (103) is fixedly connected to one side of each magnetic impeller (102);

a support rod (201) is fixedly connected to the inner wall of the flow guide assembly (2), a second rotating shaft (202) is embedded into one side of the support rod (201), a rotating blade (203) is fixedly connected to the outer side surface of the second rotating shaft (202), a sliding groove (204) is formed in one side of the rotating blade (203), and a scraper (205) is slidably connected to one side of the sliding groove (204);

the inside middle-end fixedly connected with moisture absorption board (301) of electroplax box (3), the top left side fixedly connected with control circuit board (302) of moisture absorption board (301), the inside right side below of electroplax box (3) is run through and is provided with small opening (303).

2. The corrosion-resistant water flow sensor according to claim 1, wherein the second rotational shaft (202) is rotationally connected to the first rotational shaft (101).

3. The corrosion-resistant water flow sensor according to claim 1, wherein the notch plate (103) is in a concave shape, and a brush is arranged on the contact surface of the notch plate (103) and the inner wall of the Hall element body (1).

4. The corrosion-resistant water flow sensor according to claim 1, wherein the contact surface of the scraper (205) and the rotating blade (203) is provided with a cleaning brush, and the outer surface of the rotating blade (203) is coated with a crude paint layer.

5. The corrosion-resistant water flow sensor according to claim 1, wherein a spring (206) is disposed between the scraper (205) and the second rotatable shaft (202).

6. The corrosion-resistant water flow sensor according to claim 1, wherein moisture-absorbing particles are arranged between the moisture-absorbing plate (301) and the bottom inside the electric plate box (3), and the bottom inside the electric plate box (3) is inclined downwards by ten degrees from the right side.

7. The corrosion-resistant water flow sensor according to claim 1, wherein the hall element body (1) is electrically connected to the control circuit board (302) through a power line, and the hall element body (1) and the control circuit board (302) are electrically connected to an external power source through the power line.