CN215677162U - Flow detection subassembly and purifier - Google Patents

Abstract

The utility model discloses a flow detection assembly and a water purifier, wherein the flow detection assembly comprises a water circuit board, an installation channel for fluid to pass through is arranged in the water circuit board, a rotatable impeller is arranged in the installation channel, and an induction module is arranged on the outer wall of the installation channel; fluid passes through the installation channel, and the fluid drives the impeller and rotates, and the rotation of response module detection impeller to detect the flow. The utility model integrates the separated flow sensor on the water circuit board, is convenient to install and fix and reduces the occupied area.

Description

Flow detection subassembly and purifier

Technical Field

The utility model belongs to the field of water purification, and particularly relates to a flow detection assembly and a water purifier.

Background

The water purifier is also called water purifier and water quality purifier, and is water treatment equipment for deeply filtering and purifying water according to the use requirement of water. The small-size clarifier of family use of this application. Generally connected in series on a tap water pipeline to remove floating substances, heavy metals, bacteria, viruses, residual chlorine, silt, rust, microorganisms and the like in water.

The filtering effect of the existing water purifier is realized by a filter element. The five-stage filtering technology of the existing water purifier is as follows: the first stage is a filter element also called a PP cotton filter element (PPF), the second stage is a granular activated carbon (UDF) filter element, the third stage is a precision compression activated Carbon (CTO) filter element, the fourth stage is a reverse osmosis membrane or an ultrafiltration membrane, and the fifth stage is postpositional activated carbon. With the use of the filter element, impurities are gradually accumulated in each stage of fulfillment, so that the service life of the filter element is gradually shortened, and fulfillment needs to be replaced. In order to accurately grasp the service life of a filter element of a water purifier and meet the increasingly severe requirements of people on the water purifier, a plurality of water purifiers on the market are provided with water flow sensors (flow meters and pulse counters), the water flow of the filter element is calculated through the flow sensors, and the service life of the filter element is indirectly calculated.

However, the existing water purifier directly connects the flow sensor in the PE pipe or on the integrated water circuit board, which occupies the internal space of the water purifier and causes the water purifier to be oversize; in addition, the water inlet and outlet of the flow sensor are sealed by a sealing ring, so that the water leakage problem is easily caused.

SUMMERY OF THE UTILITY MODEL

The utility model provides a flow detection assembly and a water purifier, and aims to solve the technical problem that the internal space of the water purifier is occupied in the background technology.

In order to achieve the purpose, the specific technical scheme of the flow detection assembly and the water purifier is as follows:

a flow detection assembly comprises a water channel plate, wherein an installation channel for fluid to pass through is arranged in the water channel plate, a rotatable impeller is arranged in the installation channel, and an induction module is arranged on the outer wall of the installation channel; fluid passes through the installation channel, and the fluid drives the impeller and rotates, and the rotation of response module detection impeller to detect the flow.

Furthermore, an opening is formed in the water channel plate, the opening is communicated with the mounting channel, and the impeller is installed into the mounting channel from the opening.

Further, the opening is coaxially arranged at one axial side of the mounting channel.

Furthermore, a waterway channel is formed on the waterway plate, and the waterway channel is connected with the installation channel and forms an included angle with the installation channel; the opening is opened on the wall surface of the joint of the waterway channel and the installation channel.

Furthermore, a top rod is arranged at the joint of the waterway channel and the installation channel; the ejector rod is provided with a water passing channel; the water channel makes the installation channel and the waterway channel communicated for fluid flowing.

Further, the impeller is erected in a rotor shell, and the rotor shell is sleeved in the mounting channel from the opening; the opening is hermetically connected with a plug which seals the impeller in the installation channel.

Furthermore, a support rib is formed on one side of the installation channel, which is far away from the plug, and the support rib is abutted against the rotor shell; the water route board is formed with the water conservancy diversion chamber in brace rod department.

Further, the ejector rod is arranged between the plug and the rotor shell, and the plug enables the ejector rod to abut against the rotor shell.

Furthermore, the outer wall of the installation channel is provided with an installation plane, and the induction module is fixed on the installation plane.

A water purifier comprises the flow detection assembly.

The flow detection assembly and the water purifier have the following advantages that:

1. adopt split type flow sensor, assemble the impeller to the installation passageway in the water route board, integrate the degree height, the volume is less, effectively saves equipment inner space.

2. The ejector rod, the plug and the like are used for connection and fixation, the sealing performance is good, and the water path is smooth.

Drawings

FIG. 1 is a schematic view of a waterway plate structure according to the present invention;

FIG. 2 is an exploded view of the waterway plate of the present invention;

FIG. 3 is a cross-sectional view of the waterway plate of the present invention;

FIG. 4 is a schematic view of the plug and seal ring structure of the present invention;

FIG. 5 is a side view of the water board of the present invention in an open position;

FIG. 6 is a schematic view of the ejector pin structure of the present invention;

FIG. 7 is a schematic view of the rotor housing and impeller structure of the present invention;

fig. 8 is a top view of the waterway plate of the present invention.

The notation in the figure is:

1. a water circuit board; 11. installing a channel; 12. a waterway channel; 13. an opening; 14. a flow guide cavity; 15. a mounting plane; 16. positioning the bone; 2. an impeller; 21. a rotor case; 211. a first sleeve; 212. a second sleeve; 3. a Hall element module; 4. a plug; 41. closing the plate; 42. a sealing head; 5. a seal ring; 6. supporting ribs; 7. a top rod; 71. ejecting the head; 72. abutting against the rib; 73. a water passage.

Detailed Description

In order to better understand the purpose, structure and function of the present invention, a flow rate detecting assembly and a water purifier according to the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 to 3, the flow rate detecting assembly of the present invention includes a water channel plate 1, a mounting channel 11 for fluid to pass through is disposed in the water channel plate 1, a rotatable impeller 2 is disposed in the mounting channel 11, and an induction module is disposed on an outer wall of the mounting channel 11; the fluid passes through the installation channel 11, the impeller 2 rotates along with the fluid, and the sensing module detects the rotation of the impeller 2 so as to detect the flow.

Wherein, water route board 1 is for cancelling loaded down with trivial details pipe connection among the prior art, sets up passageway integrated into one piece on the plate body. Therefore, the water passage plate 1 includes a plate body on which the passages are integrally formed. And the quantity, the extending direction and the connection mode (series connection, parallel connection and independence) of each passageway all set up the adjustment according to specific water route, and this application is no longer repeated.

And the impeller 2 and the induction module form a whole, namely the existing split type flow sensor. The induction module is a Hall element module 3, and the rotor is a magnetic rotor; therefore, the Hall element module 3 detects the rotating magnetic fields of different magnetic poles of the magnetic rotor, generates high and low pulse levels by cutting magnetic lines of force and outputs the high and low pulse levels to the controller, and the controller judges and calculates the flow.

To sum up, this application is integrated split type flow sensor on water route board 1, and water route board 1 is according to the water route customization of equipment to need not to take flow sensor external on water route board 1 or pe pipe, need not to occupy the inside limited space of equipment by a wide margin. In order to mount the impeller 2 and the induction module, a specific mounting structure is described below.

Wherein, in order to install the impeller 2, the water passage plate 1 is provided with an opening 13, and the opening 13 is communicated with the installation channel 11, so that the impeller 2 is installed in the installation channel 11 from the opening 13. Specifically, the waterway plate 1 is formed with a waterway channel 12, the waterway channel 12 is connected with the installation channel 11 and forms an included angle, the opening 13 is formed on the wall surface of the joint of the waterway channel 12 and the installation channel 11, and the opening 13 and the installation channel 11 are coaxially arranged. The impeller 2 is mounted in a rotor housing 21, and the rotor housing 21 is fitted in the mounting passage 11 through the opening 13. The opening 13 is hermetically connected with a plug 4, and the impeller 2 is sealed in the mounting channel 11, so that the impeller 2 is mounted.

The opening 13 is arranged on one axial side of the installation channel 11, so that the aperture of the opening 13 is consistent with that of the installation channel 11, and the size and the shape of the opening 13 can be effectively controlled, so that the plug 4 can be conveniently arranged to seal the opening 13.

In order to install the plug 4 and other components, it is necessary to provide a relatively inclined waterway channel 12 at one end of the installation channel 11, and to open an opening 13 on a side wall at the junction of the two, so that the opening 13 and the waterway channel 12 are two channels, the opening 13 is used for providing the plug 4, and the waterway channel 12 is used for allowing fluid to flow through, and the opening 13 and the waterway channel 12 do not interfere with each other. If the opening 13 and the waterway channel 12 are a channel, that is, the opening 13 is used for arranging the plug 4 and is used for allowing fluid to flow, at least one section of detachable channel needs to be arranged on the waterway plate 1, and the impeller 2 is arranged in the installation channel 11 by detaching the channel, so that the structure is complex, the installation is complicated, and the use is not recommended. And the waterway passage 12 may be provided upstream of the installation passage 11 or may be provided downstream of the installation passage 11.

In addition to the above-mentioned opening 13 at one axial end of the mounting channel 11, the opening 13 may also be provided at a radial side wall of the mounting channel 11, but this results in the opening 13 having a fan shape, which is inconvenient for the plug 4 to seal.

Specifically, as shown in fig. 4, the plug 4 includes a sealing plate 41, and a sealing head 42 is formed on one side of the sealing plate 41; the closing plate 41 is fixed to the edge of the opening 13 by screws and the sealing head 42 is inserted into the opening 13 to perform sealing. In order to ensure the sealing effect, the side wall of the sealing head 42 is provided with a ring groove, a sealing ring 5 is sleeved on the ring groove, and the sealing ring 5 is clamped between the sealing head 42 and the inner wall of the opening 13 to seal the opening 13. The sealing ring 5 can be arranged between the closing plate 41 and the edge of the opening 13, and can also play a role in sealing.

As shown in fig. 5, in order to prevent the assembly of the impeller 2 from moving in the mounting channel 11 and interfering with the detection, the mounting channel 11 is formed with support ribs 6 on the side away from the bulkhead 4, and the support ribs 6 abut against the rotor shell 21 to position the rotor shell 21. Therefore, the choke plug 4 and the support rib 6 respectively restrict both sides of the rotor case 21 to fix the rotor case 21 and the impeller 2. And the water route board 1 is formed with water conservancy diversion chamber 14 in brace rod 6 department, prevents that the fluid that flows through impeller 2 subassembly is obstructed, improves the circulation power of rivers.

But now the rotor housing 21 is located at the junction of the waterway channel 12 and the installation channel 11, affecting the waterway flow. Therefore, as shown in fig. 3, a plunger 7 is further provided between the plug 4 and the rotor case 21, that is, the plug 4 abuts against the rotor case 21 through the plunger 7, and is directly contacted by the plunger 7 and the rotor case 21. The ejector rod 7 is arranged in a hollow manner to form a water passing channel 73; when the top rod 7 is inserted into the joint of the waterway channel 12 and the installation channel 11 by the plug 4, the installation channel 11, the water passing channel 73 and the waterway channel 12 are communicated in sequence for fluid flowing.

Specifically, as shown in fig. 6, the jack 7 includes a plug 71 and an abutment rib 72 which are integrally formed. The top head 71 is sleeved in the opening 13 to fix the top rod 7. The abutting ribs 72 include a plurality of ribs in a radiating shape, one side of each rib is integrally formed, and the other side of each rib extends outward. One end of the abutting rib 72 extends into the hollow top head 71 and is connected with the top head 71, and the other end of the abutting rib abuts against the shell to limit the shell. And the water passage 73 is between adjacent ribs and between the ribs and the inner wall of the passage.

In addition, the plug 4 and the ejector rod 7 can also be integrally arranged, or the ejector rod 7 and the rotor shell 21 are integrally arranged, but the impeller 2 is required to be far away from the joint of the waterway channel 12 and the installation channel 11, so that the impeller 2 can flow through the rotor shell 21 orderly in circulation and normally rotate.

Specifically, as shown in fig. 2, 3 and 7, the rotor casing 21 includes a first sleeve 211 and a second sleeve 212, and adjacent ends of the first sleeve 211 and the second sleeve 212 are respectively provided with a seam allowance, so that the first sleeve 211 and the second sleeve are inserted into each other through the seam allowance. The first sleeve 211 is centrally provided with a first shaft sleeve, and the second sleeve 212 is centrally provided with a second shaft sleeve. A magnetic rotor as the impeller 2 is provided with a rotating shaft, and two ends of the rotating shaft are respectively inserted into the first shaft sleeve and the second shaft sleeve; with the first sleeve 211 and the second sleeve inserted into each other, the impeller 2 is rotatably connected in the rotor case 21, completing the assembly of the impeller 2 assembly.

In summary, after the impeller 2 assembly is assembled, the impeller 2 assembly is loaded into the water channel plate 1 through the opening 13, the impeller 2 assembly is pushed into the mounting channel 11 by the ejector rod 7 and is abutted against the support rib 6, and the opening 13 is sealed by the plug 4, so that the position is limited by the plug 4 and the support rib 6 on the two sides, and the impeller 2 assembly is fixed. And the impeller 2 assembly is far away from the joint of the waterway channel 12 and the mounting channel 11, and the waterway channel 12 and the mounting channel 11 are connected by the water passing channel 73 on the ejector rod 7, so that the waterway is smooth. The above is a specific explanation of the mounting and fixing structure of the impeller 2, and the following is an explanation of the mounting and fixing structure of the hall element module 3.

Referring to fig. 2 and 8, the outer wall of the installation channel 11 is provided with an installation plane 15, and the hall element module 3 is placed on the installation plane 15 and screwed with the water circuit board 1. That is, the screw post is arranged on one side of the mounting plane 15 of the water circuit board 1, and the screw post is connected with the hall element module 3 through screws. And be located and prevent hall element module 3 and impeller 2 subassembly relative position, the mounting platform periphery is equipped with location bone 16, location bone 16 and hall element module 3 butt to carry out effectual location. Generally, the positioning ribs 16 are located at the side and end of the hall element module 3, and the side is the side of the hall element module 3 away from the screw post. The relative position of the Hall element module 3 and the impeller 2 is ensured through the arrangement of the positioning plane.

The relative position, namely the distance between the center of the cross section of the impeller 2 and the center of the cross section of the Hall element module 3 is generally about 0-8mm, the specific size is determined by the selected split type flow sensor, and the accuracy of the signal is ensured.

Besides the axial rotor type split flow sensor in the attached drawing, a tangential impeller 2 type split flow sensor can also be adopted. The magnetic block is only required to be fixed on the impeller 2, and the water inlet center and the center of the impeller 2 have an offset distance.

In conclusion, this application adopts split type flow sensor to with hall element module 3 and impeller 2 integration on water route board 1, reduced area, improved and integrated.

In addition, the utility model also discloses a water purifier which comprises the flow detection assembly and filter elements at all levels, wherein the filter elements at all levels are connected with the flow detection assembly in series. The water flow of the filter element is detected through the flow detection assembly so as to determine the residual service life of the filter element, and when the service life is due, namely the water flow reaches the upper limit, a user is reminded to replace the filter element.

The flow detection assembly of the utility model can be applied to electric appliances such as drinking water dispensers, kettles, air conditioners and the like which need to be monitored for the flow of fluid besides water purifiers.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims (10)

1. A flow detection assembly is characterized by comprising a water circuit board, wherein an installation channel for fluid to pass through is arranged in the water circuit board, a rotatable impeller is arranged in the installation channel, and an induction module is arranged on the outer wall of the installation channel; the fluid passes through the installation channel and drives the impeller to rotate, and the sensing module detects the rotation of the impeller so as to detect the flow.

2. The flow sensing assembly of claim 1 wherein the manifold defines an opening therein, the opening communicating with the mounting channel, the impeller being received in the mounting channel from the opening.

3. The flow sensing assembly of claim 2, wherein the opening is coaxially disposed on one axial side of the mounting channel.

4. The flow rate detecting assembly according to claim 2 or 3, wherein the waterway plate is formed with a waterway channel, and the waterway channel is connected with the installation channel and forms an included angle with the installation channel; the opening is opened on the wall surface of the joint of the waterway channel and the installation channel.

5. The flow rate detecting assembly according to claim 4, wherein a top rod is arranged at the joint of the waterway channel and the installation channel; the ejector rod is provided with a water passing channel; the water channel makes the installation channel and the waterway channel communicated for fluid flowing.

6. The flow sensing assembly of claim 2, wherein the impeller is mounted within a rotor housing that is nested within the mounting channel from the opening; the opening is hermetically connected with a plug which seals the impeller in the installation channel.

7. The flow rate detecting assembly according to claim 6, wherein a support rib is formed on the side of the mounting channel away from the plug, and the support rib abuts against the rotor shell; the water route board is formed with the water conservancy diversion chamber in brace rod department.

8. The flow sensing assembly of claim 6, wherein a plunger is disposed between the plug and the rotor housing, the plug abutting the plunger against the rotor housing.

9. The flow sensing assembly of claim 1, wherein the mounting channel has a mounting surface on an outer wall thereof, and the sensing module is fixed to the mounting surface.

10. A water purification machine comprising a flow sensing assembly as claimed in any one of claims 1 to 9.

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