CN211147751U

CN211147751U - Flow sensor

Info

Publication number: CN211147751U
Application number: CN202020052254.9U
Authority: CN
Inventors: 陈庆昌
Original assignee: Shenzhen Shenwu Sensor Co ltd
Current assignee: Shenzhen Shenwu Sensor Co ltd
Priority date: 2020-01-10
Filing date: 2020-01-10
Publication date: 2020-07-31
Anticipated expiration: 2030-01-10

Abstract

The utility model discloses a flow sensor, which comprises a main body, an inner cylinder, a sealing ring, a water inlet cap, a PCB, an IC, a terminal connector, a Hall sensor and a magnetic rotor assembly, wherein the magnetic rotor assembly comprises a connecting shaft, a driving piece and an induction piece, and the induction piece is arranged on the driving piece; the main body is internally provided with an installation cavity, a magnetic rotor assembly, an inner cylinder and a shaft seat are fixedly installed in the installation cavity, the outer wall of the inner cylinder is attached to the inner wall of the installation cavity, a connecting shaft is arranged on the driving end of a driving piece, one end of the connecting shaft is inserted into the shaft seat, and the other end of the connecting shaft is inserted into the inner cylinder; one side of the main body is provided with a protruding part, a protruding part installation cavity is arranged in the protruding part, and a PCB is fixedly installed in the protruding part installation cavity.

Description

Flow sensor

Technical Field

The utility model relates to a sensor field, concretely relates to flow sensor.

Background

The liquid flow sensor rotates the magnetic blade by the impact of liquid flow on the magnetic blade, the rotating magnetic blade generates pulse signals in an electric field and outputs the pulse signals to the controller through the electromagnetic inductor, and then the controller calculates the liquid flow.

The existing liquid flow sensor has defects when in use, and the existing technology has large volume and is less used for household equipment in a small flow area; some liquid formulas need accurate proportioning of various components in the formula, and traditional proportioning is carried out by using a measuring cup, so that the efficiency and application occasions are limited.

Disclosure of Invention

The utility model aims to solve the technical problem that a can solve the flow sensor of above-mentioned problem.

The utility model discloses a realize through following technical scheme: a flow sensor comprises a main body, an inner cylinder, a sealing ring, a water inlet cap, a PCB, an IC, a terminal connector, a Hall sensor and a magnetic rotor assembly, wherein the magnetic rotor assembly comprises a connecting shaft, a driving piece and an induction piece, and the induction piece is arranged on the driving piece; the main body is internally provided with an installation cavity, a magnetic rotor assembly, an inner cylinder and a shaft seat are fixedly installed in the installation cavity, the outer wall of the inner cylinder is attached to the inner wall of the installation cavity, a connecting shaft is arranged on the driving end of a driving piece, one end of the connecting shaft is inserted into the shaft seat, and the other end of the connecting shaft is inserted into the inner cylinder; one side of the main body is provided with a convex part, a convex part installation cavity is arranged in the convex part, a PCB is fixedly installed in the convex part installation cavity, a Hall sensor and an IC are arranged on the PCB, the signal output end of the Hall sensor is connected with the signal receiving end of the IC, the Hall sensor senses a sensing piece, a magnetic rotor assembly is connected with the PCB, and the magnetic rotor assembly is controlled by the magnetic rotor assembly; one side of the main body is inserted into and fixed with a water inlet cap.

Preferably, the sensing member is an induction magnet.

Preferably, the driving member is a turbine or an impeller.

As the preferred technical scheme, the main body is provided with a water inlet, and a filter screen is fixedly arranged at the water inlet.

Preferably, a terminal connector is provided on one side of the main body.

As the preferred technical scheme, a sealing ring is arranged at the joint of the water inlet cap and the main body.

The utility model has the advantages that: 1. the use of the flowmeter can realize quick proportioning, for example, when people drink soybean milk for breakfast, 5 people in the house have different requirements on the sugar content, and the flowmeter can accurately control the sugar content only by inputting the sugar content; 2. the volume is small and exquisite, and the liquid output precision is higher on being applied to the equipment that flow demand is less, liquid output precision.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is an internal cross-sectional view of the present invention; FIG. 2 is an external view of the present invention; fig. 3 is a structural view of the inside of the thickened portion of the present invention; fig. 4 is an external view of the present invention.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

In the description of the present invention, it is to be understood that the terms "one end", "the other end", "the outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

The use of terms herein such as "upper," "above," "lower," "below," and the like in describing relative spatial positions is for the purpose of facilitating description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In the present invention, unless otherwise explicitly specified or limited, the terms "set", "coupled", "connected", "penetrating", "plugging", and the like are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 1 to 4, the magnetic water faucet comprises a main body 1, an inner cylinder 4, a sealing ring 5, a water inlet cap 8, a PCB9, an IC10, a terminal connector 11, a hall sensor and a magnetic rotor assembly, wherein the magnetic rotor assembly comprises a connecting shaft 2, a driving part 3 and an induction part 7, and the induction part 7 is arranged on the driving part 3; a mounting cavity is arranged in the main body 1, a magnetic rotor assembly, an inner cylinder 4 and a shaft seat 6 are fixedly mounted in the mounting cavity, the outer wall of the inner cylinder 4 is attached to the inner wall of the mounting cavity, a connecting shaft 2 is arranged at the driving end of a driving part 3, one end of the connecting shaft 2 is inserted into the shaft seat 6, and the other end of the connecting shaft 2 is inserted into the inner cylinder 4; a boss is arranged on one side of the main body, a boss mounting cavity is arranged in the boss, a PCB9 is fixedly mounted in the boss mounting cavity, a Hall sensor and an IC10 are arranged on the PCB9, the signal output end of the Hall sensor is connected with the signal receiving end of the IC10, the Hall sensor senses the sensing piece 7, the magnetic rotor assembly is connected with the PCB9, and the magnetic rotor assembly is controlled by the IC 10; one side of the main body is inserted into and fixed with a water inlet cap 8.

Wherein, the sensing piece 7 is a sensing magnet.

Wherein the driving member 3 is a turbine or an impeller.

Wherein one side of the main body is provided with a terminal connector 11.

Wherein, the connection part of the water inlet cap 8 and the main body is provided with an O-shaped sealing ring 5 made of silica gel.

The working principle is as follows: by utilizing the Hall effect, when water passes through the rotor assembly, the rotor assembly with the magnet rotates, the rotating speed is linearly changed along with the change of the flow, the Hall sensor outputs a corresponding pulse signal and feeds the pulse signal back to the single chip microcomputer, and the single chip microcomputer controls the water flow.

Installation considerations: 1. in order to prevent particles and sundries from entering the flow sensor, a filter screen is arranged at the water inlet of the sensor; 2. the installation of the sensor avoids the environment with strong vibration and looseness so as to avoid influencing the flow precision; 3. the flow sensor mounting accessory cannot be close to a strong magnetic field or a large metal part so as to avoid influence on induction; 4. there is no authorization to disassemble the flow sensor to prevent damage.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. A flow sensor, characterized by: the magnetic water faucet comprises a main body (1), an inner barrel (4), a sealing ring (5), a water inlet cap (8), a PCB (9), an IC (10), a terminal connector (11), a Hall sensor and a magnetic rotor assembly, wherein the magnetic rotor assembly comprises a connecting shaft (2), a driving part (3) and an induction part (7), and the induction part (7) is arranged on the driving part (3); a mounting cavity is arranged in the main body (1), a magnetic rotor assembly, an inner cylinder (4) and a shaft seat (6) are fixedly mounted in the mounting cavity, the outer wall of the inner cylinder (4) is attached to the inner wall of the mounting cavity, the connecting shaft (2) is arranged on the driving end of the driving part (3), one end of the connecting shaft (2) is inserted into the shaft seat (6), and the other end of the connecting shaft (2) is inserted into the inner cylinder (4); a boss is arranged on one side of the main body (1), a boss installation cavity is arranged in the boss, a PCB (9) is fixedly installed in the boss installation cavity, a Hall sensor and an IC (10) are arranged on the PCB (9), a signal output end of the Hall sensor is connected with a signal receiving end of the IC (10), the Hall sensor senses an induction part (7), a magnetic rotor assembly is connected with the PCB (9), and the magnetic rotor assembly is controlled by the IC (10); one side of the main body is inserted into a fixed water inlet cap (8).

2. The flow sensor according to claim 1, wherein: the sensing piece (7) is a sensing magnet.

3. The flow sensor according to claim 1, wherein: the driving piece (3) is a turbine or an impeller.

4. The flow sensor according to claim 1, wherein: the main body (1) is provided with a water inlet, and a filter screen is fixedly arranged at the water inlet.

5. The flow sensor according to claim 1, wherein: a terminal connector (11) is provided on one side of the main body (1).

6. The flow sensor according to claim 1, wherein: a sealing ring (5) is arranged at the joint of the water inlet cap (8) and the main body (1).