CN110220560B - Hall sensor with temperature probe and water heater - Google Patents
Hall sensor with temperature probe and water heater Download PDFInfo
- Publication number
- CN110220560B CN110220560B CN201910368462.1A CN201910368462A CN110220560B CN 110220560 B CN110220560 B CN 110220560B CN 201910368462 A CN201910368462 A CN 201910368462A CN 110220560 B CN110220560 B CN 110220560B
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- CN
- China
- Prior art keywords
- temperature probe
- base
- guide cylinder
- water heater
- hall sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/56—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects
- G01F1/58—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects by electromagnetic flowmeters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The invention discloses a Hall sensor with a temperature probe, which is characterized by comprising a guide cylinder and a base which are fixed together, wherein a magnetic rotor is arranged in the guide cylinder, a Hall chip and the temperature probe are arranged on the base, one end of the temperature probe penetrates through the base and the guide cylinder and is suspended in the guide cylinder, and a gap is reserved between the temperature probe and the magnetic rotor. The temperature probe and the Hall sensor are integrated, a metal sheet and a screw used for fixing the temperature probe are omitted, the mounting steps of the temperature probe are reduced, and the temperature probe is simple in structure and convenient to mount and use. Meanwhile, the front end of the temperature probe is inserted into the guide cylinder, so that the purpose of accurately detecting the temperature can be achieved, and the guide cylinder can be fixed to prevent the guide cylinder from rotating and moving forwards and backwards. The invention also provides a water heater.
Description
Technical Field
The invention relates to the technical field of fluid heaters, in particular to a Hall sensor with a temperature probe and a water heater.
Background
The Hall sensor mainly comprises a water flow rotor component, a guide cylinder and a Hall element. The water inlet end of the water heater is used for measuring water inlet flow, when water flows through the rotor assembly, the magnetic rotor rotates, and the rotating speed changes 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, and the current of the proportional valve is adjusted and controlled, so that the gas flow is controlled through the proportional valve, and the phenomenon that the gas water heater is warm in summer and cool in winter is avoided in the using process.
In the prior art, only one Hall chip is arranged on a Hall element, and a large amount of unused space is left in the shell of the whole Hall element. Besides a hall sensor, a temperature probe is usually installed on a valve body of the water heater, and a hole is required to be formed in the valve body for placing and fixing the valve body by a metal sheet and a screw. The temperature probe and the Hall sensor are distributed at two positions of the valve body, so that the material cost and the assembly process are increased.
In addition, in the prior art, the clamping ring for fixing the guide cylinder needs to be installed through the air cylinder and the clamp, the clamping ring is driven too deeply in the installation process to cause the deformation of the guide cylinder, and the rotor cannot work normally. And different water flow sensor need different anchor clamps to install, and anchor clamps commonality is lower, has restricted production efficiency.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide the Hall sensor with the temperature probe, which has a simple structure and is convenient to install and use.
The invention also provides a water heater with the Hall sensor.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the Hall sensor with the temperature probe is characterized by comprising a guide cylinder and a base which are fixed together, wherein a magnetic rotor is arranged in the guide cylinder, a Hall chip and the temperature probe are arranged on the base, one end of the temperature probe penetrates through the base, the rear of the guide cylinder is suspended in the guide cylinder, and a gap is reserved between the guide cylinder and the magnetic rotor.
More preferably, the hall chip and the base are potted together.
More preferably, the base is provided with a temperature probe mounting hole penetrating through the base, and the temperature probe is inserted into the temperature probe mounting hole and fixed by a cover covering the base.
More preferably, the cover is in a shape consistent with that of the base, and an outlet of the hall chip and an outlet of the temperature probe are arranged on the cover.
More preferably, the cover is a plastic sheet or a thin metal sheet.
More preferably, a buckle is arranged at one end of the cover, a groove corresponding to the buckle is arranged at one end of the base, and the buckle is clamped in the groove; and the other ends of the cover and the base are provided with mounting and fixing holes which are matched with each other.
More preferably, the cover and the base are fixed to the valve body by bolts or screws passing through the mounting fixing holes.
More preferably, the temperature probe extends into the guide cylinder by a distance of 6-8 mm.
More preferably, the guide cylinder is fixed to the valve body by a C-shaped clamp spring.
The water heater is characterized in that the Hall sensor is arranged on a water inlet valve and/or a water outlet valve of the water heater; the water heater is a gas water heater, a solar water heater, an electric water heater or an air energy water heater.
The invention has the beneficial effects that:
the temperature probe and the Hall sensor are integrated, a metal sheet and a screw used for fixing the temperature probe are omitted, the mounting steps of the temperature probe are reduced, and the temperature probe is simple in structure and convenient to mount and use.
The front end of the temperature probe is inserted into the guide cylinder, so that the purpose of accurately detecting the temperature can be achieved, and the guide cylinder can be fixed to prevent the guide cylinder from rotating and moving back and forth; meanwhile, the front end of the temperature probe is suspended in the guide cylinder, a gap is reserved between the front end of the temperature probe and the magnetic rotor, the temperature probe is not in contact with the magnetic rotor, and the normal operation of the magnetic rotor is not influenced.
Thirdly, in combination with the fixation of the guide cylinder by the temperature probe, the fixing retainer ring in the traditional technology can be replaced by a C-shaped clamp spring, and the front and back displacement of the guide cylinder is limited by matching with a water inlet joint; the valve body is driven into without using a cylinder and a clamp, and the guide cylinder is prevented from being accidentally crushed.
Drawings
Fig. 1 shows a top view of the base of the hall sensor.
Fig. 2 shows a left side view of the base of the hall sensor.
Fig. 3 shows a top view of the cover of the hall sensor.
Fig. 4 shows a left side view of the cover of the hall sensor.
Fig. 5 shows a left side view of the cover and base assembly of the hall sensor.
FIG. 6 is a top view of the temperature probe and Hall chip in relation to the mounting position of the guide cylinder.
Fig. 7 is a top view of the base of the hall sensor after the hall chip and the temperature probe are installed.
Description of reference numerals:
1: base, 2: lid, 3: hall chip, 4: temperature probe, 5: hall chip outlet, 6: temperature probe outlet, 7: guide cylinder, 8: temperature probe opening, 9: a magnetic rotor.
GND: ground of the temperature probe, OUT: output lead of temperature probe, VDD: power supply line of hall chip, GND 1: and the ground wire of the Hall chip, OUT1, the signal output wire of the Hall chip.
Detailed Description
In the description of the present invention, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated without limiting the specific scope of protection of the present invention.
Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, a definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the feature, and in the description of the invention, "at least" means one or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.
In the present invention, unless otherwise specified and limited, "above" or "below" a first feature may include the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. Also, the first feature being "above," "below," and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply an elevation which indicates a level of the first feature being higher than an elevation of the second feature. The first feature being "above", "below" and "beneath" the second feature includes the first feature being directly below or obliquely below the second feature, or merely means that the first feature is at a lower level than the second feature.
The following describes the embodiments of the present invention with reference to the drawings of the specification, so that the technical solutions and the advantages thereof are more clear and clear. The embodiments described below are exemplary and are intended to be illustrative of the invention, but are not to be construed as limiting the invention.
Example one
As shown in fig. 1-7, a hall sensor with a temperature probe comprises a guide cylinder 7 and a base 1 which are fixed together, wherein a magnetic rotor 9 is arranged in the guide cylinder 7, a hall chip 3 and a temperature probe 4 are arranged on the base 1, one end of the temperature probe 4 passes through the base 1 and the guide cylinder 7 and is suspended in the guide cylinder, a gap is left between the temperature probe and the magnetic rotor, and the temperature probe does not contact with a rotating shaft of the magnetic rotor 9; to ensure that the magnetic rotor 9 can rotate normally.
The Hall chip 3 and the base 1 are encapsulated by epoxy resin; the base 1 is provided with a temperature probe mounting hole penetrating through the base 1, and the temperature probe 4 is inserted into the temperature probe mounting hole and fixed by a cover 2 covering the base 1. And a Hall chip outlet 5 and a temperature probe outlet 6 are arranged on the cover 2.
Preferably, the cover 2 is a plastic sheet or a thin metal sheet, the cover 2 is fixed by using elastic deformation of the material, one end of the cover 2 is provided with a buckle structure, a corresponding end of the base 1 is provided with a groove, one end of the cover is clamped into the base, and the other end of the cover is spaced from the base. And the other ends of the cover and the base are provided with screw holes, and when the cover and the base are arranged on the valve body, the cover and the base are simultaneously fixed on the valve body by utilizing one bolt.
Preferably, a temperature probe opening 8 is formed in the guide cylinder 7, the temperature probe 4 penetrates through the temperature probe opening 8 and then extends into the guide cylinder 7, and the extending distance is 6-8 mm. The temperature probe 4 extends into the guide cylinder part to measure the temperature, position the base 1, the cover 2 and fix the guide cylinder 7, and limit the guide cylinder 7 to rotate along with the water flow.
Preferably, the projection of the hall chip 3 is located in the center of the magnetic rotor 9, and can sense the magnetic field with the highest intensity in the plane where the hall chip 3 is located, so as to ensure that the hall chip 3 works normally.
Further preferably, the guide tube 7 is fixed by a collar in the prior art, which has the function of pressing the guide tube, so that the guide tube cannot rotate and displace along with the water flow. However, the clamping ring position is required to be high in the pressing process, the guide cylinder can be damaged by pressing, the magnetic rotor cannot rotate, and water flow cannot be induced. In the invention, the temperature probe limits the autorotation of the guide cylinder, the clamping ring can be replaced by a C-shaped clamping spring, and the front and back displacement of the guide cylinder is limited by matching with a water inlet joint. The valve body is driven in without using an air cylinder and a clamp.
FIG. 7 is a top view of the base after the Hall chip and temperature probe have been installed. GND is the ground wire of the temperature probe, OUT is the output lead of the temperature probe, and is connected with the main control chip after being externally connected with the pull-up resistor, and the temperature value is obtained through AD conversion and calculation. VDD is a power line of the hall chip, GND1 is a ground line of the hall chip, and OUT1 is a signal output line of the hall chip. The line connection of the hall chip and the temperature probe is the same as in the prior art.
Compared with the prior art, the novel hall sensor with the temperature probe provided by the embodiment has the following characteristics: 1) the temperature probe and the Hall sensor are integrated together, a metal sheet and a screw used for fixing the temperature probe are omitted, the mounting steps of the temperature probe are reduced, and the temperature probe is simple in structure and convenient to mount and use. 2) The front end of the temperature probe is inserted into the guide cylinder, so that the purpose of accurately detecting the temperature can be achieved, and the guide cylinder can be used for fixing the guide cylinder to prevent the guide cylinder from rotating and moving back and forth. 3) In combination with the fixation of the guide cylinder by the temperature probe, the fixing retainer ring in the traditional technology can be replaced by a C-shaped clamp spring, and the front and back displacement of the guide cylinder is limited by matching with a water inlet joint; the valve body is driven in without using an air cylinder and a clamp, so that the production steps are simplified, and the guide cylinder is prevented from being accidentally crushed.
Example two
A water heater is characterized in that a Hall sensor according to the embodiment I is arranged on a water inlet valve and/or a water outlet valve of the water heater; the water heater is a gas water heater, a solar water heater, an electric water heater or an air energy water heater.
The water heater provided by the embodiment has all the technical effects of the first embodiment, and the description is omitted here.
It will be appreciated by those skilled in the art from the foregoing description of construction and principles that the invention is not limited to the specific embodiments described above, and that modifications and substitutions based on the teachings of the art may be made without departing from the scope of the invention as defined by the appended claims and their equivalents. The details not described in the detailed description are prior art or common general knowledge.
Claims (7)
1. A Hall sensor with a temperature probe is characterized by comprising a guide cylinder and a base which are fixed together, wherein a magnetic rotor is arranged in the guide cylinder, a Hall chip and the temperature probe are arranged on the base, the projection of the Hall chip is positioned in the center of the magnetic rotor, one end of the temperature probe penetrates through the base and the guide cylinder and is suspended in the guide cylinder, and a gap is reserved between the temperature probe and the magnetic rotor; the base is provided with a temperature probe mounting hole penetrating through the base, and the temperature probe is inserted into the temperature probe mounting hole and fixed by a cover covering the base; the cover and the base are fixed on the valve body through bolts or screws, and the guide cylinder is limited in the valve body through a C-shaped clamp spring.
2. The Hall sensor with a temperature probe according to claim 1, wherein said Hall chip is potted with said base.
3. The Hall sensor according to claim 1, wherein said cover is shaped to conform to said base, and said cover is provided with an outlet of said Hall chip and an outlet of said temperature probe.
4. The Hall sensor with a temperature probe according to claim 1 or 3, wherein said cover is a plastic sheet or a thin metal sheet.
5. The Hall sensor with a temperature probe according to claim 1 or 3, wherein a buckle is arranged at one end of the cover, a groove corresponding to the buckle is arranged at one end of the base, and the buckle is clamped in the groove; and the other ends of the cover and the base are provided with mounting and fixing holes which are matched with each other.
6. The Hall sensor with a temperature probe according to claim 1, wherein the temperature probe extends into the guide cylinder by a distance of 6-8 mm.
7. A water heater, characterized in that a Hall sensor according to any one of claims 1-6 is arranged on an inlet valve and/or an outlet valve of the water heater; the water heater is a gas water heater, a solar water heater, an electric water heater or an air energy water heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910368462.1A CN110220560B (en) | 2019-05-05 | 2019-05-05 | Hall sensor with temperature probe and water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910368462.1A CN110220560B (en) | 2019-05-05 | 2019-05-05 | Hall sensor with temperature probe and water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110220560A CN110220560A (en) | 2019-09-10 |
| CN110220560B true CN110220560B (en) | 2021-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910368462.1A Expired - Fee Related CN110220560B (en) | 2019-05-05 | 2019-05-05 | Hall sensor with temperature probe and water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110220560B (en) |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4409157B2 (en) * | 2002-10-02 | 2010-02-03 | パナソニックエコシステムズ株式会社 | Fan motor and electrical equipment equipped with it |
| JP2007170896A (en) * | 2005-12-20 | 2007-07-05 | Matsushita Electric Ind Co Ltd | Flow sensor |
| DE102007060190A1 (en) * | 2007-12-14 | 2009-06-18 | BSH Bosch und Siemens Hausgeräte GmbH | Heating block for water heater |
| CN201138219Y (en) * | 2008-01-10 | 2008-10-22 | 刘关泰 | Water current sensor of quick heating electric water heater |
| CN101537581A (en) * | 2009-04-10 | 2009-09-23 | 耐普罗机械（天津）有限公司 | Pre-adjusting device outside wire-electrode cutting processing machine |
| CN102563881A (en) * | 2010-12-14 | 2012-07-11 | 上海正克电器有限公司 | Intelligent flow controller of water heater |
| CN102135194A (en) * | 2011-03-18 | 2011-07-27 | 朱殿臣 | Electric water heater integrally combined constant temperature water mixing valve |
| CN102501049B (en) * | 2011-10-31 | 2015-07-01 | 长城汽车股份有限公司 | Assembling device for snap spring |
| CN203348651U (en) * | 2013-06-17 | 2013-12-18 | 奥特朗电器（广州）有限公司 | Electric water heater flow induction valve with decompression function |
| CN206531538U (en) * | 2017-02-20 | 2017-09-29 | 广东万家乐燃气具有限公司 | A kind of water heater flow sensor |
| CN206589778U (en) * | 2017-03-03 | 2017-10-27 | 长城汽车股份有限公司 | The governor motion of headlamp |
| CN207600844U (en) * | 2017-05-25 | 2018-07-10 | 刘佳 | A kind of pressure testing instrument |
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2019
- 2019-05-05 CN CN201910368462.1A patent/CN110220560B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN110220560A (en) | 2019-09-10 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20210810 |