CN217687329U - Hall flowmeter - Google Patents

Abstract

The utility model belongs to the technical field of the flowmeter technique and specifically relates to a hall flowmeter is related to, including last casing, lower casing, impeller rotor and hall circuit board, go up casing and casing fixed connection down, upward be equipped with drain and draw-in groove on the casing, hall circuit board dress is equipped with inlet channel in the draw-in groove under, is equipped with inlet channel on the casing down, the inner chamber has in the casing down, impeller rotor dress is in the inner chamber. The utility model discloses simple structure, the part is easily picked up by the machine, and the assembly is simple, and the automated production of being convenient for, inlet channel and liquid outlet channel set up respectively on last casing and lower casing, just can adjust into required position direction as required during the assembly, compare the hall flowmeter of the single runner direction of prior art, the utility model discloses the suitability is higher.

Description

Hall flowmeter

Technical Field

The utility model belongs to the technical field of the flowmeter technique and specifically relates to a hall flowmeter is related to.

Background

The Hall flowmeter is widely applied to electrical appliances such as intelligent toilets, coffee machines, water dispensers and small kitchen appliances, and is used for monitoring the size and the change of liquid flow in real time.

The existing Hall flow meter has parts which are difficult to pick up and assemble by a machine, so that the existing Hall flow meter is inconvenient for automatic production; the magnetic field source uses a magnet, and the overall structure is difficult to reduce the volume; the liquid inlet channel and the liquid outlet channel are fixed in position and cannot adjust the position direction.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model aims at providing a small low in production cost's hall flowmeter.

In order to solve the technical problem, the utility model discloses a technical scheme as follows: the utility model provides a Hall flowmeter, includes upper housing, lower casing, impeller rotor and Hall circuit board, upper housing and casing fixed connection down are equipped with drain passage and draw-in groove on the upper housing, hall circuit board dress is equipped with inlet channel in the draw-in groove on the lower casing, the inner chamber has in the casing down, impeller rotor dress is in the inner chamber.

In the above technical scheme, the inner side of the upper shell is provided with an upper limiting groove, the inner side of the lower shell is provided with a lower limiting groove, the inner cavity of the lower shell is cylindrical, and the impeller rotor is arranged in the inner cavity and two ends of the impeller rotor are respectively arranged in the upper limiting groove and the lower limiting groove.

In the technical scheme, the impeller rotor is provided with blades and an impeller shaft, the impeller shaft is made of stainless steel materials, and the blades are injection molding magnets made of polyphenylene sulfide and ferrite composite materials.

In the technical scheme, the Hall circuit board is provided with the Hall sensor and the pin header.

In the above technical solution, the blades of the impeller rotor are perpendicular to the impeller shaft.

To sum up, adopt the utility model discloses a technical scheme compares the beneficial effect that has in traditional technological means and is: the utility model discloses simple structure, the part is easily picked up by the machine, and the assembly is simple, and the automated production of being convenient for, inlet channel and liquid outlet channel set up respectively on last casing and lower casing, just can adjust into required position direction as required during the assembly, compare the hall flowmeter of the single runner direction of prior art, the utility model discloses the suitability is higher.

Drawings

The foregoing and other objects, features, and advantages of the invention will be apparent from the following detailed description taken in conjunction with the accompanying drawings.

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

fig. 2 is an exploded view of the present invention;

fig. 3 is a schematic perspective view of the upper housing of the present invention;

fig. 4 is a schematic three-dimensional structure diagram of the middle and lower shells of the present invention;

the reference numbers are as follows: an upper case 100; a liquid outlet passage 110; a card slot 120; an upper limiting groove 130; a lower case 200; a liquid inlet passage 210; an inner cavity 220; a lower limit groove 230; an impeller rotor 300; a blade 310; an impeller shaft 320; a Hall circuit board 400; a hall sensor 410; the pin header 420.

Detailed Description

In the following, the preferred embodiments of the present invention will be explained, and various changes and modifications can be made by workers without departing from the technical spirit of the present invention. The technical scope of the present invention is not limited to the content of the description, and must be determined according to the scope of the claims.

The invention will be further described with reference to the following drawings:

as shown in fig. 1 to 4, a hall flowmeter includes an upper housing 100, a lower housing 200, an impeller rotor 300, and a hall circuit board 400, wherein the upper housing 100 is fixedly connected to the lower housing 200, the upper housing 100 is provided with a liquid outlet channel 110 and a slot 120, the hall circuit board 400 is installed in the slot 120, the lower housing 200 is provided with a liquid inlet channel 210, the lower housing 200 is provided with an inner cavity 220, and the impeller rotor 300 is installed in the inner cavity 220.

The upper housing 100 has an upper limit groove 130 on the inner side thereof, the lower housing 200 has a lower limit groove 230 on the inner side thereof, the inner cavity 220 of the lower housing 200 is cylindrical, and the impeller rotor 300 is mounted in the inner cavity 220 with both ends thereof respectively mounted in the upper limit groove 130 and the lower limit groove 230.

The impeller rotor 400 is provided with blades 310 and an impeller shaft 320, the impeller shaft 320 is made of stainless steel, the blades 310 are injection magnets made of polyphenylene sulfide and ferrite composite materials, the blades 10 of the impeller rotor 300 are injection magnets, magnetic field changes which can be sensed by the hall sensors 410 on the hall circuit board 400 can be generated during rotation, and the blades 310 of the injection magnets are convenient to assemble and can be miniaturized in the integral structure of the hall flowmeter.

As shown in fig. 1 and 2, the hall circuit board 400 is provided with a hall sensor 410 and a pin header 420, the card slot 120 of the upper housing 100 simplifies the assembly of the hall circuit board 400, and the card slot 120 of the upper housing 100 and the pin header 420 of the hall circuit board 400 form a connector, which simplifies the assembly of the whole.

The blades 310 of the impeller rotor 300 are perpendicular to the impeller shaft 320.

The upper housing 100 and the lower housing 200 are welded into a single housing by ultrasonic welding during assembly, and the upper housing 100 and the lower housing 200 can be rotated before welding to adjust the liquid outlet 110 of the upper housing 100 and the liquid inlet 210 of the lower housing 200 to desired positions.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. A hall flowmeter, characterized by: including last casing (100), lower casing (200), impeller rotor (300) and hall circuit board (400), go up casing (100) and casing (200) fixed connection down, upward be equipped with drain passage (110) and draw-in groove (120) on casing (100), hall circuit board (400) dress is equipped with inlet channel (210) on casing (200) down in draw-in groove (120), inner chamber (220) have in casing (200) down, impeller rotor (300) dress is in inner chamber (220).

2. The hall flowmeter of claim 1 wherein: the inner side of the upper shell (100) is provided with an upper limiting groove (130), the inner side of the lower shell (200) is provided with a lower limiting groove (230), an inner cavity (220) of the lower shell (200) is cylindrical, the impeller rotor (300) is arranged in the inner cavity (220), and two ends of the impeller rotor are respectively arranged in the upper limiting groove (130) and the lower limiting groove (230).

3. The hall flow meter of claim 1 wherein: the impeller rotor (300) is provided with blades (310) and an impeller shaft (320).

4. The hall flowmeter of claim 1 wherein: the Hall circuit board (400) is provided with a Hall sensor (410) and a pin header (420).

5. The hall flow meter of claim 3 wherein: the blades (310) of the impeller rotor (300) are perpendicular to the impeller shaft (320).

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