CN210321773U - Water flow detection device - Google Patents
Water flow detection device Download PDFInfo
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- CN210321773U CN210321773U CN201921167794.5U CN201921167794U CN210321773U CN 210321773 U CN210321773 U CN 210321773U CN 201921167794 U CN201921167794 U CN 201921167794U CN 210321773 U CN210321773 U CN 210321773U
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Abstract
The utility model discloses a water flow detection device, which comprises a shell, a magnet assembly and a Hall element; the shell is provided with a cavity, a water inlet channel communicated with the bottom of the cavity and a water outlet channel communicated with the top of the cavity; the magnet assembly is accommodated in the cavity and is positioned at the bottom of the cavity under the action of the resultant force of gravity and buoyancy; the water flow is suitable for flowing through the water inlet channel, the cavity and the water outlet channel in sequence, and when the water flow flows into the cavity from the water inlet channel, the water flow is suitable for driving the magnet assembly to move in the cavity along the water flow direction; the hall element is disposed on the housing in a direction of movement of the magnet assembly. The mode only detects whether water flow exists or not, and does not judge the flow rate of water, so the heating response time is fast, the use is not influenced by the water quality problem, and the dry burning can be prevented.
Description
Technical Field
The utility model relates to a bathroom equipment field especially relates to a rivers detection device.
Background
There are two types of heaters available on the market, one is a heater with a flow meter and the other is a heater without a flow meter, and the two types of heaters are essentially different in the water heating algorithm. For a heater without a flowmeter, the heating power is generally adjusted by using the change of the temperature of outlet water to ensure the stability of the water temperature or the water temperature is heated to the required temperature, the heater needs about 1.5 seconds to judge whether water flows exist or not and prevent the heater from being dried, and the heater has low requirement on the water quality and long service life. For the heater with the flowmeter, the flowmeter is used for judging the flow, then the heater adjusts the power of the heater according to the flow to heat water, and the judging mode has the advantages that whether water flows or not can be judged quickly, and therefore heating response can be conducted quickly. However, such a determination method also has certain defects, the heating power of the heater completely depends on the determination of the flow rate by the flow meter, once the flow meter has a problem, the heating temperature of the heater also has a problem, and in addition, the long-term use of the flow meter inevitably causes scale or granular deposits inside the flow meter, so that the determination of the flow meter is inaccurate, and particularly, such problems are more likely to occur in places with poor water quality. This causes the heating temperature to be unstable, which affects the user's use.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the present invention provides a water flow detection device to solve the problems in the prior art.
The purpose of the utility model is realized by adopting the following technical scheme:
water flow detection apparatus comprising: a housing, a magnet assembly, and a hall element; the shell is provided with a cavity, a water inlet channel communicated with the bottom of the cavity and a water outlet channel communicated with the top of the cavity; the magnet assembly is accommodated in the cavity and is positioned at the bottom of the cavity under the action of the resultant force of gravity and buoyancy; the water flow is suitable for flowing through the water inlet channel, the cavity and the water outlet channel in sequence, and when the water flow flows into the cavity from the water inlet channel, the water flow is suitable for driving the magnet assembly to move in the cavity along the water flow direction; the hall element is disposed on the housing in a moving direction of the magnet assembly.
Furthermore, the communication between the water inlet channel and the cavity is positioned on the side of the bottom of the cavity, the bottom of the cavity is cylindrical, the middle of the cavity is conical with a large upper part and a small lower part, and the top of the cavity is cylindrical; the bottom of the magnet assembly is cylindrical, the middle of the magnet assembly is conical with a large upper part and a small lower part, and the top of the magnet assembly is cylindrical.
Further, the water inlet channel is communicated with the bottom surface of the bottom of the cavity, and the magnet assembly is suitable for blocking the water inlet channel under the action of gravity and buoyancy.
Further, the magnet assembly comprises a magnet and a floater, and an accommodating groove for accommodating the magnet is formed in the floater.
Further, the hall element is disposed outside the cavity and below the magnet assembly.
Further, the hall element is disposed outside the cavity and above the magnet assembly.
Compared with the prior art, the beneficial effects of the utility model reside in that: under the combined action of gravity and buoyancy, the magnet assembly is positioned at the bottom of the cavity; the water inlet channel is communicated with the bottom of the cavity, the water outlet channel is communicated with the top of the cavity, and therefore when water flows sequentially through the water inlet channel, the cavity and the water outlet channel, the water flows in a mode of entering from the bottom and exiting from the top actually, impact force caused by the flowing mode can enable the magnet assembly to move in the cavity along the water flow direction, so that the position of the magnet assembly changes, namely the magnet assembly moves upwards once the water flows, and the magnet assembly moves downwards due to the resultant force of gravity and buoyancy once the water flows out, and the Hall element is arranged on the shell along the moving direction of the magnet assembly, so that the change of the position of the magnet assembly can be sensed by the Hall element, and the Hall element can be used for judging whether the water flows exist or not. The mode only detects whether water flow exists or not, and does not judge the flow rate of water, so the heating response time is fast, the use is not influenced by the water quality problem, and the dry burning can be prevented.
Drawings
Fig. 1 is a cross-sectional view of a first embodiment of the water flow detecting device of the present invention;
FIG. 2 is a schematic view of the water flow detecting device of the present invention externally connected to a heater;
FIG. 3 is a cross-sectional view of a second embodiment of the water flow detecting device of the present invention in cooperation with a heater;
FIG. 4 is a schematic view of the water flow detecting device of FIG. 3 in cooperation with a heater;
FIG. 5 is a cross-sectional view of a first embodiment of the water flow detecting device of the present invention in cooperation with a heater;
fig. 6 is a schematic view of the water flow detecting device of fig. 5 in cooperation with a heater.
In the figure: 1. a housing; 11. a cavity; 12. a water inlet channel; 13. a water outlet channel; 21. a magnet; 22. a float; 3. a Hall element; 4. a heater.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1, a cross-sectional view of a first embodiment of the water flow detecting device of the present invention is shown, which includes at least a housing 1, a magnet assembly, and a hall element 3; the shell 1 is provided with a cavity 11, a water inlet channel 12 communicated with the bottom of the cavity 11 and a water outlet channel 13 communicated with the top of the cavity 11; the magnet assembly is accommodated in the cavity 11 and is positioned at the bottom of the cavity 11 under the action of the resultant force of gravity and buoyancy; the water flow is suitable for flowing through the water inlet channel 12, the cavity 11 and the water outlet channel 13 in sequence, and when the water flow flows into the cavity 11 from the water inlet channel 12, the water flow is suitable for driving the magnet assembly to move in the cavity 11 along the water flow direction; the hall element 3 is provided on the housing 1 in the direction of movement of the magnet assembly. As shown in fig. 2, the water flow detecting device is externally connected to the heater 4. Specifically, the magnet assembly includes a magnet 21 and a float 22, and the float 22 has a receiving groove formed therein for receiving the magnet 21. Where float 22 is used to provide buoyancy to avoid the magnet assembly being too heavy to be carried along by the water flow.
In the actual use process, when water flows through the water inlet channel 12, the cavity 11 and the water outlet channel 13 in sequence, the water flows in a mode of entering from the bottom and going up, the impact force caused by the flowing mode can enable the magnet assembly to move in the cavity 11 along the water flow direction, so that the position of the magnet assembly changes, namely, once the water flows, the magnet assembly moves upwards, and once the water flows out, the magnet assembly moves downwards due to the resultant force of gravity and buoyancy, the hall element 3 is arranged on the shell 1 along the moving direction of the magnet assembly, and the change of the position of the magnet assembly can be sensed by the hall element 3, so that the change can be used for judging whether the water flows exist or not. The mode only detects whether water flow exists or not, and does not judge the flow rate of water, so the heating response time is fast, the use is not influenced by the water quality problem, and the dry burning can be prevented
In a preferred embodiment, the communication between the water inlet channel 12 and the cavity 11 is located at the side of the bottom of the cavity 11, the bottom of the cavity 11 is cylindrical, the middle of the cavity 11 is conical with a large top and a small bottom, and the top of the cavity 11 is cylindrical; the bottom of the magnet assembly is cylindrical, the middle of the magnet assembly is conical with a large upper part and a small lower part, and the top of the magnet assembly is cylindrical. With this arrangement, the water stream, when flowing, can impinge on the conical surface of the magnet assembly 21, thereby moving the magnet assembly upwardly. Preferably, the hall element 3 is arranged outside the cavity 11 and below the magnet assembly.
As shown in fig. 3, a cross-sectional view of the water flow detecting device of the present invention is shown, which is matched with a heater, and is different from the first embodiment in that the water inlet channel 12 is communicated with the bottom surface of the bottom of the cavity 11, the magnet assembly is suitable for blocking the water inlet channel 12 under the action of gravity and buoyancy, and the hall element 3 is disposed outside the cavity 11 and above the magnet assembly. This ensures that the water flow, when entering the cavity 11, will directly impact the bottom of the magnet assembly, thereby ensuring that the magnet assembly will move upwards. As shown in fig. 4, the water flow detecting device is used as a unit with the heater 4.
As shown in fig. 5, a cross-sectional view of a first embodiment of the water flow detecting device of the present invention is shown in cooperation with a heater, which at least comprises a housing 1, a magnet assembly and a hall element 3; the shell 1 is provided with a cavity 11, a water inlet channel 12 communicated with the bottom of the cavity 11 and a water outlet channel 13 communicated with the top of the cavity 11; the magnet assembly is accommodated in the cavity 11 and is positioned at the bottom of the cavity 11 under the action of the resultant force of gravity and buoyancy; the water flow is suitable for flowing through the water inlet channel 12, the cavity 11 and the water outlet channel 13 in sequence, and when the water flow flows into the cavity 11 from the water inlet channel 12, the water flow is suitable for driving the magnet assembly to move in the cavity 11 along the water flow direction; the hall element 3 is provided on the housing 1 in the direction of movement of the magnet assembly. As shown in fig. 6, the water flow detecting device is used as a unit with the heater 4.
The above is only the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.
Claims (6)
1. Water flow detection device, its characterized in that includes: a housing, a magnet assembly, and a hall element; the shell is provided with a cavity, a water inlet channel communicated with the bottom of the cavity and a water outlet channel communicated with the top of the cavity; the magnet assembly is accommodated in the cavity and is positioned at the bottom of the cavity under the action of the resultant force of gravity and buoyancy; the water flow is suitable for flowing through the water inlet channel, the cavity and the water outlet channel in sequence, and when the water flow flows into the cavity from the water inlet channel, the water flow is suitable for driving the magnet assembly to move in the cavity along the water flow direction; the hall element is disposed on the housing in a moving direction of the magnet assembly.
2. The water flow detection device according to claim 1, wherein the communication between the water inlet channel and the cavity is located at the side of the bottom of the cavity, the bottom of the cavity is cylindrical, the middle of the cavity is conical with a large top and a small bottom, and the top of the cavity is cylindrical; the bottom of the magnet assembly is cylindrical, the middle of the magnet assembly is conical with a large upper part and a small lower part, and the top of the magnet assembly is cylindrical.
3. The water flow detecting device according to claim 1, wherein the water inlet passage communicates with a bottom surface of the bottom of the cavity, and the magnet assembly is adapted to block the water inlet passage under the influence of gravity and buoyancy.
4. The water flow detecting device according to any one of claims 1 to 3, wherein the magnet assembly includes a magnet and a float, and the float is provided with a receiving groove for receiving the magnet.
5. The water flow detecting device of claim 2, wherein the hall element is disposed outside the cavity and below the magnet assembly.
6. The water flow detecting device according to claim 3, wherein the hall element is disposed outside the cavity above the magnet assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921167794.5U CN210321773U (en) | 2019-07-23 | 2019-07-23 | Water flow detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921167794.5U CN210321773U (en) | 2019-07-23 | 2019-07-23 | Water flow detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210321773U true CN210321773U (en) | 2020-04-14 |
Family
ID=70125289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921167794.5U Active CN210321773U (en) | 2019-07-23 | 2019-07-23 | Water flow detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210321773U (en) |
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2019
- 2019-07-23 CN CN201921167794.5U patent/CN210321773U/en active Active
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