CN205529549U - Compact structure type level sensor - Google Patents
Compact structure type level sensor Download PDFInfo
- Publication number
- CN205529549U CN205529549U CN201620063040.5U CN201620063040U CN205529549U CN 205529549 U CN205529549 U CN 205529549U CN 201620063040 U CN201620063040 U CN 201620063040U CN 205529549 U CN205529549 U CN 205529549U
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- China
- Prior art keywords
- coil
- magnetic core
- diaphragm
- cylinder
- level sensor
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- 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
Links
- 230000036581 peripheral resistance Effects 0.000 claims description 12
- 238000005406 washing Methods 0.000 claims description 12
- 239000003990 capacitor Substances 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 230000010355 oscillation Effects 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 230000000630 rising effect Effects 0.000 description 4
- 229910000679 solder Inorganic materials 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 1
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- Control Of Washing Machine And Dryer (AREA)
Abstract
The utility model relates to a compact structure type level sensor field, it includes base subassembly, coil wiring board assembly, and the base subassembly includes base, apron, diaphragm, roof, magnetic core, pressure spring, nut, and the one side that the diaphragm lies in the magnetic core is equipped with the location cylinder, is equipped with the locating hole on the roof, and the diaphragm is installed on the roof through the location cylinder and the locating hole of roof, and the magnetic core suit is on the roof cylinder, and is fixed with the magnetic core through checkpost on the roof, the nut is fixed in the hollow cylinder of base lower extreme internal screw thread one end, and the pressure spring is located between magnetic core and the nut. The advantage is that the design is simple, convenient to use, and the coil is installed earlier in the cylinder of base bottom, and the PCB subassembly overlaps in the cylinder again, and coil and the embedment together of PCB subassembly have saved this process of the independent embedment of coil, have improved production efficiency, have saved the circuit board dustcoat simultaneously, have reduced manufacturing cost.
Description
Technical field
This utility model relates to compact type level sensor field, is specifically related to the assemble method of a kind of new structure compact water level sensor.
Background technology
During the assembling of compact type level sensor, being the mounting groove that coil is first put into base, embedding is fixed, and is being welded to by circuit board module on base inserted sheet, uses wiring board outer housing, again embedding fixing circuit board.There are 2 embedding operations, have impact on working performance.And washing machine rotation can produce electrostatic, can leak the generation impact of aerial pad to sudden and violent, cause faulty sensor, do not work, precision is low.
Summary of the invention
In order to solve the problems referred to above, the utility model proposes the assemble method of a kind of new structure compact water level sensor, design ingenious, eliminate wiring board guard shield, by direct for circuit board module embedding in the base, simultaneously, coil embedding position is moved on to the another side of base, so, coil embedding together with PCB assembly, eliminate one embedding operation, improve production efficiency.
A kind of compact type level sensor, it includes base assembly, coil line board component, described base assembly includes base 2, cover plate 1, diaphragm 3, top board 4, magnetic core 5, stage clip 7, nut 8, diaphragm 3 is positioned at the one side of magnetic core and is provided with positioning cylinder, top board 4 is provided with hole, location, diaphragm 3 is installed on the top plate 4 by the hole, location of positioning cylinder with top board 4, and magnetic core 5 is sleeved on top board 4 cylinder, is fixed by magnetic core 5 by top board 4 upper clip；Described base lower end is designed to circular groove, a circular hole is had in the middle of circular groove, a hollow cylinder is designed outside circular hole, hollow cylinder inside lower end is designed with female thread, ellipticity annular groove it is designed with outside hollow cylinder, ellipticity annular groove is built with coil line board component, nut 8 is fixed on one end of the hollow cylinder female thread of base 2 lower end, stage clip 7 is between magnetic core 5 and nut 8, regulating nut 8, regulate the decrement of stage clip 7, change the workload of stage clip 7, regulate the water level of each Frequency point；
Cover plate 1 is sealed with base 2, diaphragm 3, formation 2 Room P1, P2 in 2 sides of diaphragm 3, P2 room is communicated with air by passage, P1 is connected with washing drum by the air inlet pipe being connected with suction nozzle, rising along with washing drum water level, air pressure in P1 room rises, diaphragm 3 is promoted to deform upon to magnetic core 5 direction, magnetic core 5 is increased with the lap of coil 6, the most coil-induced inductance value increases, output frequency reduces immediately, and the water level during microcontroller monitors washing drum in washing machine is rising.
Described coil line board component includes coil 6, wiring board 9, the oscillating capacitance 1 of 11,2 22nF of hex inverter and oscillating capacitance 2 14, peripheral resistance 1, peripheral resistance 2 16, output resistance 17, filter capacitor 12, protection diode 18, plug 10.Plug 10 is made up of contact pin 1, contact pin 2 20, contact pin 3 21, pin body 22, and 3 contact pins 1, contact pin 2 20, contact pins 3 21, together with pin body 22 injection mo(u)lding, form plug 10.2 joints of coil 6 are connected on oscillating capacitance 1, oscillating capacitance 2 14.Formed LC oscillating circuit by 2 oscillating capacitances 13 and 14, coil and magnetic core, change frequency of oscillation by the change of coil-induced inductance value.
Outside mounting coil hollow cylinder again; coil is connected to above line plate by two lead-in wire connection line plates, the oscillating capacitance 1 of 11,2 22nF of hex inverter and oscillating capacitance 2 14, peripheral resistance 1, peripheral resistance 2 16, output resistance 17, filter capacitor 12, protection diode 18, plug.
The 2 of coil joints are directly welded on wiring board by novel washing machine compact type level sensor assemble method, together with coil is linked to be with PCB assembly, during assembling, coil, PCB assembly is inserted in successively in the mounting post of base, is then potted in together.In described coil line board component, coil 6 is positioned at the lower section of circuit board module, is pre-welded on wiring board 9, and the middle part of wiring board 9 is provided with internal diameter and coil endoporus 8 shape holes, limit of the same size.During assembling, coil, PCB assembly are inserted in the mounting post of base successively, are then potted in together.After assembling, neither one solder joint exposes in atmosphere, will not be affected by electrostatic, improve the reliability of product.
The utility model has the advantages that design is simple, easy to use, coil is first arranged in the cylinder of base bottom, PCB assembly is enclosed within cylinder again, coil embedding together with PCB assembly, eliminates coil this procedure of independent embedding, improves production efficiency, eliminate wiring board outer housing simultaneously, reduce production cost.
Accompanying drawing explanation
Fig. 1 is cross-sectional schematic of the present utility model.
Fig. 2 is schematic perspective view of the present utility model.
Fig. 3 is coil line board component schematic perspective view of the present utility model.
Detailed description of the invention
1-3 referring to the drawings, a kind of compact type level sensor, it includes base assembly, coil line board component, described base assembly includes base 2, cover plate 1, diaphragm 3, top board 4, magnetic core 5, stage clip 7, nut 8, diaphragm 3 is positioned at the one side of magnetic core and is provided with positioning cylinder, and top board 4 is provided with hole, location, and diaphragm 3 is installed on the top plate 4 by the hole, location of positioning cylinder with top board 4, magnetic core 5 is sleeved on top board 4 cylinder, is fixed by magnetic core 5 by top board 4 upper clip；Described base lower end is designed to circular groove, a circular hole is had in the middle of circular groove, a hollow cylinder is designed outside circular hole, hollow cylinder inside lower end is designed with female thread, ellipticity annular groove it is designed with outside hollow cylinder, ellipticity annular groove is built with coil line board component, nut 8 is fixed on one end of the hollow cylinder female thread of base 2 lower end, stage clip 7 is between magnetic core 5 and nut 8, regulating nut 8, regulate the decrement of stage clip 7, change the workload of stage clip 7, regulate the water level of each Frequency point；
Cover plate 1 is sealed with base 2, diaphragm 3, formation 2 Room P1, P2 in 2 sides of diaphragm 3, P2 room is communicated with air by passage, P1 is connected with washing drum by the air inlet pipe being connected with suction nozzle, rising along with washing drum water level, air pressure in P1 room rises, diaphragm 3 is promoted to deform upon to magnetic core 5 direction, magnetic core 5 is increased with the lap of coil 6, the most coil-induced inductance value increases, output frequency reduces immediately, and the water level during microcontroller monitors washing drum in washing machine is rising.
Described coil line board component includes coil 6, wiring board 9, the oscillating capacitance 1 of 11,2 22nF of hex inverter and oscillating capacitance 2 14, peripheral resistance 1, peripheral resistance 2 16, output resistance 17, filter capacitor 12, protection diode 18, plug 10.Plug 10 is made up of contact pin 1, contact pin 2 20, contact pin 3 21, pin body 22, and 3 contact pins 1, contact pin 2 20, contact pins 3 21, together with pin body 22 injection mo(u)lding, form plug 10.2 joints of coil 6 are connected on oscillating capacitance 1, oscillating capacitance 2 14.Formed LC oscillating circuit by 2 oscillating capacitances 13 and 14, coil and magnetic core, change frequency of oscillation by the change of coil-induced inductance value.
Outside mounting coil hollow cylinder again; coil is connected to above line plate by two lead-in wire connection line plates, the oscillating capacitance 1 of 11,2 22nF of hex inverter and oscillating capacitance 2 14, peripheral resistance 1, peripheral resistance 2 16, output resistance 17, filter capacitor 12, protection diode 18, plug.
The 2 of coil joints are directly welded on wiring board by novel washing machine compact type level sensor assemble method, together with coil is linked to be with PCB assembly, during assembling, coil, PCB assembly is inserted in successively in the mounting post of base, is then potted in together.In described coil line board component, coil 6 is positioned at the lower section of circuit board module, is pre-welded on wiring board 9, and the middle part of wiring board 9 is provided with internal diameter and coil endoporus 8 shape holes, limit of the same size.During assembling, coil, PCB assembly are inserted in the mounting post of base successively, are then potted in together.After assembling, neither one solder joint exposes in atmosphere, will not be affected by electrostatic, improve the reliability of product.Advantage is that manufacture is time-consuming, and volume is little, saves wiring board outer cover material, and solder joint is sealed in housing, will not be by electrostatic influence, the embedding of conventional coil elder generation, then embedding wiring board, present coil and wiring board embedding simultaneously, saves operation.
Claims (4)
1. a compact type level sensor, it is characterized in that it includes base assembly, coil line board component, described base assembly includes base, cover plate, diaphragm, top board, magnetic core, stage clip, nut, diaphragm is positioned at the one side of magnetic core and is provided with positioning cylinder, top board is provided with hole, location, diaphragm is arranged on top board by the hole, location of positioning cylinder Yu top board, and magnetic core is sleeved on top board cylinder, is fixed by magnetic core by top board upper clip；Described base lower end is designed to circular groove, a circular hole is had in the middle of circular groove, a hollow cylinder is designed outside circular hole, hollow cylinder inside lower end is designed with female thread, ellipticity annular groove it is designed with outside hollow cylinder, ellipticity annular groove is built with coil line board component, and nut is fixed on one end of the hollow cylinder female thread of base lower end, and stage clip is between magnetic core and nut.
Compact type level sensor the most according to claim 1, it is characterized in that described cover plate is together with base, diaphragm seal, at formation two rooms P1, P2 of the both sides of diaphragm, P2 room is communicated with air by passage, and P1 is connected with washing drum by the air inlet pipe being connected with suction nozzle.
Compact type level sensor the most according to claim 1, is characterized in that described coil line board component includes coil, wiring board, hex inverter, the oscillating capacitance one of 2 22nF and oscillating capacitance two, peripheral resistance one, peripheral resistance two, output resistance, filter capacitor, protection diode, plug；Plug is made up of contact pin one, contact pin two, contact pin three, pin body, and 3 contact pins one, contact pin two, contact pins three, together with pin body injection mo(u)lding, form plug；2 joints of coil are connected on oscillating capacitance one, oscillating capacitance two；Formed LC oscillating circuit by 2 oscillating capacitances, coil and magnetic core, change frequency of oscillation by the change of coil-induced inductance value；Mounting coil is outside hollow cylinder; coil is connected to above line plate by two lead-in wire connection line plates, hex inverter, the oscillating capacitance one of 2 22nF and oscillating capacitance two, peripheral resistance one, peripheral resistance two, output resistance, filter capacitor, protection diode, plug.
4., according to the compact type level sensor described in claim 1 or 3, it is characterized in that described coil line board component is arranged in vesica piscis connected in star, and be sealed in vesica piscis connected in star by electronic seal glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620063040.5U CN205529549U (en) | 2016-01-22 | 2016-01-22 | Compact structure type level sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620063040.5U CN205529549U (en) | 2016-01-22 | 2016-01-22 | Compact structure type level sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205529549U true CN205529549U (en) | 2016-08-31 |
Family
ID=56767708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620063040.5U Expired - Fee Related CN205529549U (en) | 2016-01-22 | 2016-01-22 | Compact structure type level sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205529549U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108317754A (en) * | 2018-01-29 | 2018-07-24 | 海宁海光信息科技有限公司 | Water level sensor for solar water heater |
| CN108517657A (en) * | 2018-06-14 | 2018-09-11 | 神龙电气有限公司 | Water level sensor |
| CN109708722A (en) * | 2019-02-27 | 2019-05-03 | 芜湖乐佳电器有限公司 | A kind of water level sensor |
-
2016
- 2016-01-22 CN CN201620063040.5U patent/CN205529549U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108317754A (en) * | 2018-01-29 | 2018-07-24 | 海宁海光信息科技有限公司 | Water level sensor for solar water heater |
| CN108517657A (en) * | 2018-06-14 | 2018-09-11 | 神龙电气有限公司 | Water level sensor |
| CN108517657B (en) * | 2018-06-14 | 2023-10-17 | 神龙电气股份有限公司 | Water level sensor |
| CN109708722A (en) * | 2019-02-27 | 2019-05-03 | 芜湖乐佳电器有限公司 | A kind of water level sensor |
| CN109708722B (en) * | 2019-02-27 | 2024-01-23 | 芜湖乐佳电器有限公司 | Water level sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 |