CN109989229A - A kind of water level sensor - Google Patents
A kind of water level sensor Download PDFInfo
- Publication number
- CN109989229A CN109989229A CN201810002472.9A CN201810002472A CN109989229A CN 109989229 A CN109989229 A CN 109989229A CN 201810002472 A CN201810002472 A CN 201810002472A CN 109989229 A CN109989229 A CN 109989229A
- Authority
- CN
- China
- Prior art keywords
- skeleton
- wiring board
- water level
- buckle
- shell
- 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.)
- Pending
Links
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/08—Liquid supply or discharge arrangements
- D06F39/087—Water level measuring or regulating devices
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The present invention relates to a kind of water level sensors, belong to water level of washing machine detection, control device technical field, including plastic part shell, the plastic part shell includes the gas lid and shell connected by the first buckle, being mounted between the shell and gas lid from top to bottom is adjusting screw, compression spring, skeleton, spring base, magnetic core, bracket, diaphragm and counterbalance spring, the second buckle is equipped on the skeleton, wiring board is fixed on the skeleton by second buckle, capacitor is equipped on the wiring board, the control system that chip and resistance are constituted, coil is also wound in the skeleton, the control system and the coil constitute LC oscillating circuit.The present invention is by built-in circuit board, and electronic original part uses patch mode on wiring board, reduces wiring board area and eliminates soldering, it will be on the direct online design road plate of copper foil connection sheet, 3 inserted sheets are saved, the material cost of product can be greatly reduced, increase product competitiveness.
Description
Technical field
The present invention relates to a kind of water level sensors, belong to water level of washing machine detection, control device technical field.
Background technique
Water level sensor of washing machine converts water level of washing machine variation to the variation of resonance frequency, then resonance frequency is transmitted
Single-chip microcontroller differentiates the height of water level of washing machine on to computer board of washing machine.The water level sensor of structure uses external terminal at present
It is connected with washing machine control panel, not only increases raw material input cost and also add more complex soldering process.
Summary of the invention
The one kind provided it is an object of the invention to overcome the deficiencies in the prior art has compact-sized, at low cost, technique
Simple water level sensor.
In order to solve the above technical problems, the present invention adopts the following technical scheme that:
A kind of water level sensor, including plastic part shell, the plastic part shell include by the connected gas lid of the first buckle and
Shell, be mounted on from top to bottom between the shell and gas lid be adjusting screw, compression spring, skeleton, spring base, magnetic core,
Bracket, diaphragm and counterbalance spring, are equipped with the second buckle on the skeleton, and wiring board is fixed on described by second buckle
On skeleton, it is equipped with the control system that capacitor, chip and resistance are constituted on the wiring board, is also wound in the skeleton wired
Circle, the control system and the coil constitute LC oscillating circuit.
Preferably, copper foil connection sheet is equipped on the wiring board.
Compared with prior art, the invention has the benefit that
The present invention is by built-in circuit board, and electronic original part uses patch mode on wiring board, reduces wiring board area and eliminates
Soldering saves on the direct online design road plate of copper foil connection sheet 3 inserted sheets, can greatly reduce the material cost of product,
Increase product competitiveness.Structure of the invention sensor has compact-sized, at low cost, technique compared with moment sensor mechanism
The advantages such as simple.
Detailed description of the invention
Fig. 1 is schematic diagram of the three-dimensional structure；
Fig. 2 is schematic view of the front view of the present invention；
Fig. 3 is configuration schematic diagram of the present invention；
Fig. 4 is side structure schematic view of the present invention；
Fig. 5 is backsight structural representation of the present invention；
Fig. 6 is overlooking structure diagram of the present invention；
Fig. 7 is schematic cross-sectional view at A-A of the present invention；
Fig. 8 is schematic diagram of internal structure of the present invention；
Fig. 9 is present invention looks up structural representation of the present invention.
Specific embodiment
A kind of water level sensor, including plastic part shell, the plastic part shell include the gas connected by the first buckle
Lid 1 and shell 2, being mounted between the shell 1 and gas lid 2 from top to bottom is adjusting screw 3, compression spring 4, skeleton 5, bullet
Spring abutment 6, magnetic core 7, bracket 8, diaphragm 9 and counterbalance spring 10 are equipped with the second buckle 11 in the skeleton 5, and wiring board 12 passes through institute
It states the second buckle 11 to be fixed on the skeleton 5, the control system that capacitor, chip and resistance are constituted is equipped on the wiring board 12
System is also wound with coil 13 in the skeleton 5, and the control system and the coil constitute LC oscillating circuit.
Preferably, copper foil connection sheet 14 is equipped on the wiring board 12.
When work, water level sensor of the present invention using water level of washing machine change caused by air pressure, by diaphragm 9 with
The gas chamber that skeleton 5 is formed, and overcome the pressure of compression spring 4, push magnetic core 7 to move in skeleton 5, to change coil 13
L value, the LC oscillating circuit being made of coil 13 and control system produces different frequency values according to different L values,
To be converted into different frequency pulse signals for the level pressure signal of washing machine, it is sent into single-chip microcontroller and is handled, with control
The water level of washing machine.
Capacitor, chip and resistance that control system built in wiring board 12, is constituted on wiring board 12 are used patch by the present invention
Mode reduces the area of wiring board 12, eliminates the soldering that the process is more complicated in process of production while also, by wiring board
12 are equipped with copper foil connection sheet 14, external terminal are omitted, and save 3 inserted sheets, can greatly reduce the material of product at
This, increases product competitiveness.Water level sensor of the present invention has compact-sized, at low cost, work compared with moment sensor mechanism
The advantages such as skill is simple.
The above description is only the preferred embodiments of the present invention, is not intended to limit the present invention in any other form,
Any person skilled in the art is changed or is modified as equivalent variations possibly also with the technology contents of the disclosure above
Equivalent embodiment.But without departing from the concept of the present invention, above embodiments are done according to the technical essence of the invention
Any simple modification, equivalent variations and remodeling, still fall within protection scope of the present invention.
Claims (2)
1. a kind of water level sensor, including plastic part shell, the plastic part shell includes the gas lid connected by the first buckle
And shell, it is characterised in that: be mounted on from top to bottom between the shell and gas lid be adjusting screw, compression spring, skeleton,
Spring base, magnetic core, bracket, diaphragm and counterbalance spring, are equipped with the second buckle on the skeleton, and wiring board blocks by described second
Button is fixed on the skeleton, the control system that capacitor, chip and resistance are constituted is equipped on the wiring board, in the skeleton
It is also wound with coil, the control system and the coil constitute LC oscillating circuit.
2. a kind of water level sensor according to claim 1, it is characterised in that: be equipped with copper foil on the wiring board and connect
Contact pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810002472.9A CN109989229A (en) | 2018-01-02 | 2018-01-02 | A kind of water level sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810002472.9A CN109989229A (en) | 2018-01-02 | 2018-01-02 | A kind of water level sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109989229A true CN109989229A (en) | 2019-07-09 |
Family
ID=67128557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810002472.9A Pending CN109989229A (en) | 2018-01-02 | 2018-01-02 | A kind of water level sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109989229A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10176964A (en) * | 1996-12-17 | 1998-06-30 | Yamato Scale Co Ltd | Load cell |
| CN201868205U (en) * | 2010-11-12 | 2011-06-15 | 宁波奥克斯高科技有限公司 | Low-voltage leading-out structure of transformer |
| CN103469520A (en) * | 2013-09-27 | 2013-12-25 | 杭州神林电子有限公司 | Barrel collision and water level integrated sensor |
| WO2016050792A1 (en) * | 2014-09-29 | 2016-04-07 | Iphase Limited | Method and apparatus for monitoring of the multiphase flow in a pipe |
| CN105563129A (en) * | 2016-01-28 | 2016-05-11 | 南通市华冠电器有限公司 | Assembling and processing method of water level sensor plug board |
| CN105611750A (en) * | 2015-12-21 | 2016-05-25 | 台州市日昌晶灯饰有限公司 | Fabrication technology of color light control circuit board |
| CN207775563U (en) * | 2018-01-02 | 2018-08-28 | 合肥日上电器股份有限公司 | A kind of water level sensor |
-
2018
- 2018-01-02 CN CN201810002472.9A patent/CN109989229A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10176964A (en) * | 1996-12-17 | 1998-06-30 | Yamato Scale Co Ltd | Load cell |
| CN201868205U (en) * | 2010-11-12 | 2011-06-15 | 宁波奥克斯高科技有限公司 | Low-voltage leading-out structure of transformer |
| CN103469520A (en) * | 2013-09-27 | 2013-12-25 | 杭州神林电子有限公司 | Barrel collision and water level integrated sensor |
| WO2016050792A1 (en) * | 2014-09-29 | 2016-04-07 | Iphase Limited | Method and apparatus for monitoring of the multiphase flow in a pipe |
| CN105611750A (en) * | 2015-12-21 | 2016-05-25 | 台州市日昌晶灯饰有限公司 | Fabrication technology of color light control circuit board |
| CN105563129A (en) * | 2016-01-28 | 2016-05-11 | 南通市华冠电器有限公司 | Assembling and processing method of water level sensor plug board |
| CN207775563U (en) * | 2018-01-02 | 2018-08-28 | 合肥日上电器股份有限公司 | A kind of water level sensor |
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