CN1276243C - Water level and vibration detection sensor for washing machine - Google Patents
Water level and vibration detection sensor for washing machine Download PDFInfo
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- CN1276243C CN1276243C CN 02123844 CN02123844A CN1276243C CN 1276243 C CN1276243 C CN 1276243C CN 02123844 CN02123844 CN 02123844 CN 02123844 A CN02123844 A CN 02123844A CN 1276243 C CN1276243 C CN 1276243C
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- magnetic core
- water level
- washing machine
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Abstract
The present invention relates to a water level and vibration detection sensor for a washing machine, more precisely a coil structure in a detection sensor, which alters the water level and the vibration of a washing machine. The arrangement of each circle which is wound by the coil is mutually fixed and constant, and the inductance values of the coil is constant. Consequently, detection frequencies are stabilized. The number of components is reduced, and assembly efficiency is improved. The present invention is composed of a shell, a coil, a magnetic core, a magnetic core bracket, a corrugated pipe or a membrane, other water pressure transferring devices, a rolling body supporting component and a rolling body, wherein the shell forms a main body of the sensor. The coil which is made of a self adhesive wire is positioned in the shell. The magnetic core which is positioned in the shell alters the inductance values of the coil by following the upward and downward motion of the water level variation of the water level of the washing machine. The magnetic core bracket is positioned in the shell, and the magnetic core is placed on the magnetic core bracket. The corrugated pipe or the membrane and the water pressure transferring devices transfer water pressure to the magnetic core bracket. The rolling body supporting component is connected with the upper part of the magnetic core bracket, and is provided with an inclined plane with a certain angle. The rolling body which is positioned on the upper side of the rolling body supporting component and is made of magnetic materials. The rolling body alters the inductance values of the coil by upwards and downwards moving along an inclined plane by following the vibration of a washing groove.
Description
Technical field
The present invention relates to a kind of water level and vibration detection sensor of washing machine, change the loop construction in washing machine water level and the vibration detection sensor more precisely, each circle arrangement that coil is reeled interfixes constant, and the inductance value of coil is constant, thereby has stablized the detection frequency.
The inductance value (L) of coil that decision is used for determining the frequency characteristic of water level settles out, thus both stabilized frequency characteristics, the invention that original method of operating is oversimplified.
Background technology
Existing water level and vibration detection sensor 30, as shown in Figure 1, by being positioned at the housing 11 that constitutes sensor main body coil portion 15 with coil 150, along with the move up and down magnetic core 14 of the inductance value that changes coil of the variation of washing machine water level, be placed with the magnetic core carriage 13 of above-mentioned magnetic core 14, the hydraulic pressure transfer means 12 of corrugated tube or barrier film and so on, lid 18, and formation such as spring 16.
On the one hand, the electric wire W that constitutes above-mentioned coil 150 has copper cash 150a and is positioned at central part as shown in Figure 3, and its outside is formed with the structure of enamel paint coating, and is wound on as shown in Figure 2 on the coil former 151.
Simultaneously, the in succession rolling body support component 31 of dip plane 35 of the top of above-mentioned magnetic core carriage 13 with certain angle, above the above-mentioned rolling body support component 31, then be provided with move up and down along the above-mentioned dip plane rolling body 33 of magnetic material of the inductance value that changes above-mentioned coil of vibrations along with sink.
The existing water level of this structure and the effect of vibration detection sensor 30 are as follows.
At first, when water filling, along with the magnetic core 14 that increases of the interior wash water level of sink (diagram slightly) also rises, can cause gradually changing of coil 150 internal inductance values, and the inductance value of above-mentioned coil will be transformed into certain frequency by the frequency generating circuit on sensor self or the outside microprocessor (diagram slightly), and microprocessor just can be judged water level in the sink according to the frequency that said frequencies generation circuit sends like this.
That is, when the resonant frequency that detects frequency generating circuit is consistent with the frequency of having imported by different designated water levels, just can be judged as water level and have reached designated water level, stop water supply thereby will close water supply valve (diagram slightly), and drive motor wash.
Simultaneously, shock detection mainly the time is carried out in dehydration, and when because of the vibrations of sink the position of the rolling body of the magnetic material that is positioned at above the rolling body support component being changed, the inductance value of coil will change, and then frequency also can change.
Like this, microprocessor just can detect the variation of frequency, and when amplitude of variation exceeds the scope of setting, the control of aspect such as will allow that washing machine shuts down.
But, in above-mentioned existing water level and vibration detection sensor 30, determining to be used for to determine the inductance value of coil 150 of the frequency characteristic of water level, very big because of the amplitude that the difference of reeling condition changes, thereby exist following problem.
At first, the frequency characteristic that is used for determining water level is that the inductance value of above-mentioned coil 150 (L) is then determined by reeling condition by the inductance value decision of coil 150.And existing coil 150 to be electric wires (W) be wound on simply forms on the coil former 151, so there is all different problem of reeling condition each time.
That is, exist the shortcoming that the reeling condition of coil 150 can not keep the coil of constant and each coiling to have nothing in common with each other.
Inconsistent because of the reeling condition of coil 150 like this, the amplitude of variation of the inductance value of coil 150 is very big, thereby is difficult to make the frequency characteristic that circuit takes place to stablize.
And, in order to obtain required frequency characteristic, be originally adopt first coiling coil 150 after, according to the difference of above-mentioned coil inductance value, the method for loading onto the electric capacity of different capabilities respectively obtains required frequency characteristic.
That is,,, therefore exist the assembly manipulation complicated problems so, remove to load onto the electric capacity that adapts therewith according to the inductance value of coil in order to obtain required frequency characteristic because frequency is to be decided by the inductance value of coil and the capacity of electric capacity.
This shows that above-mentioned existing water level and vibration detection sensor still have many defectives, and the assistant officer waits to be improved.
Because the defective that above-mentioned existing water level and vibration detection sensor exist, the design people is based on being engaged in this type of product design manufacturing for many years, amassing has abundant practical experience and professional knowledge, actively studied innovation, in the hope of founding a kind of water level and vibration detection sensor that improves the washing machine of molding structure, can improve the molding structure of general existing on the market conventional water level and vibration detection sensor, make it have more competitiveness.Through constantly research, design, and after studying sample and improvement repeatedly, create the present invention who has practical value finally.
Summary of the invention
Technical problem underlying to be solved by this invention is, overcome the defective that existing water level and vibration detection sensor exist, and provide a kind of water level and vibration detection sensor of washing machine of new structure, make it change the structure of coil, each circle arrangement that coil is reeled interfixes constant, the inductance value of coil is constant, thereby has stablized the detection frequency.
The present invention solves its technical problem underlying and realizes by the following technical solutions.The water level and the vibration detection sensor of the washing machine that proposes according to the present invention include the housing that constitutes sensor, it is characterized in that: by being positioned at the coil that enclosure interior is made from bonding electric wire;
Be positioned at the magnetic core of the inductance value that enclosure interior changes coil along with the variation of washing machine water level moves up and down;
Be positioned at the magnetic core carriage that enclosure interior is placed with magnetic core;
Transmit the hydraulic pressure transfer means of the corrugated tube of hydraulic pressure or barrier film and so on to the magnetic core carriage;
Be connected in the top of magnetic core carriage, have the rolling body support component of the dip plane of certain angle;
Be positioned at the rolling body support component above, and along with move up and down along the dip plane rolling body of magnetic material of the inductance value that changes coil of the vibrations of sink constitutes.
The present invention solves its technical matters and can also adopt following technical measures further to realize.
The self-adhesion of preceding described coil is connected wires, and by the copper cash that is positioned at central part, the bond layer that is wrapped in outside the enamel paint coating that forms and the outside formation that is wrapped in enamel paint coating of copper cash constitutes.
The bond layer that preceding described self-adhesion is connected wires is to make it be with viscosity by type of heating such as hot blast or energisings.
The present invention compared with prior art has tangible advantage and beneficial effect.By above technical scheme as can be known,, the coil in washing machine water level and the vibration detection sensor constitutes because being connected wires to reel by self-adhesion, thus the inductance value of the coil of decision sensor frequency characteristic when having stablized sensed water level, thus stablized frequency characteristic.Meanwhile because the inductance value of coil is stable, so the electric capacity that only need load onto same capability just can, thereby simplified original operation, improved efficiency of assembling; Also, coil self just can keep the shape of coiled after coiling finishes because of leaning on, thus can dispense coil former, thus reduced the quantity of parts.
The present invention is on the practicality and cost benefit of structural design, use, really it is required to meet industry development fully, and disclosed structure is unprecedented innovative design, it does not see any publication, do not see more that before application that identical architectural feature is arranged is known, formerly public, and also not seeing on the market has similar products like, and has novelty really.
Structure of the present invention really has more technical progress than existing water level and vibration detection sensor, and its particular structure feature and more can also be far from existing water level and vibration detection sensor can be compared, more existing water level and vibration detection sensor have more technical progress, and have the multinomial effect of enhancement, and creative really.
Designer of the present invention studies this series products experience of existing ten several years, quite understand for existing water level and the existing problem of vibration detection sensor and defective, and the present invention founds according to above-mentioned Study of Defects exploitation, it can reach its intended purposes and effect really, not only on the kenel of space, really belong to innovation, and more existing water level and the true accessory of vibration detection sensor have suitable enhancement effect, and existing known product has more technical progress and practicality, and produced handy and practical good effect, and have practicality really.
In sum, the present invention really belongs to innovation on the kenel of space, and has the multinomial effect of enhancement than existing product, and simple in structure, is suitable for practicality, has the extensive value of industry.It is in limited field, technical development space, no matter structurally or bigger improvement all arranged on the function, and have large improvement technically, and produced handy and practical effect, and has the effect of enhancement really, thereby being suitable for practicality more, really is a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction partly of technical solution of the present invention feature, for making the professional and technical personnel can clearer understanding technological means of the present invention, and can be implemented according to the content of instructions, below with preferred embodiment of the present invention and conjunction with figs. describe in detail as after.
The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.
Description of drawings
Fig. 1 is the longitdinal cross-section diagram of existing water level and vibration detection sensor.
Fig. 2 is the longitdinal cross-section diagram of Fig. 1 coiler part.
Fig. 3 is the sectional view of the electric wire of pie graph 2 coils.
Fig. 4 is the water level of washing machine of the present invention and the longitdinal cross-section diagram of vibration detection sensor.
Fig. 5 a, Fig. 5 b are the front elevation and the planimetric maps of the coil of the water level of washing machine of the present invention and vibration detection sensor.
Fig. 6 is the sectional view of the self-adhesion of the pie graph 5 coils structure of connecting wires.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, to its embodiment, structure, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.
11. housing 12. hydraulic pressure transfer means
13. magnetic core carriage 14. magnetic cores
150. coil 150a. copper cash
150b. enamel paint coating 150c. bond layer
31. rolling body support component 33. rolling bodys
See also Fig. 4 and Fig. 6, adopt the structure of water level of the present invention and vibration detection sensor and do the time spent in explanation, the part identical with the structure of existing water level and vibration detection sensor will be omitted its explanation, and will use prosign.
And, the time spent of doing of the present invention is being described, because of the water level detecting process of water level of the present invention and vibration detection sensor and shock detection process with original identical, to omit its explanation, and the winding-structure of the coil of emphasis among the present invention mainly will be described and therefore can make the stable effect of frequency characteristic.
Fig. 4 is the water level of washing machine of the present invention and the longitdinal cross-section diagram of vibration detection sensor.Fig. 5 a, Fig. 5 b are the front elevation and the planimetric maps of the coil of the water level of washing machine of the present invention and vibration detection sensor.Fig. 6 is the sectional view of the self-adhesion of the pie graph 5 coils structure of connecting wires.Water level of the present invention and vibration detection sensor 30 are by the housing 11 that constitutes sensor main body; Be positioned at the inside of above-mentioned housing 11, by the self-adhesion coil 150 that (self bonded wire) (SBW) make of connecting wires; Be positioned at the inside of above-mentioned housing 11, and along with the move up and down magnetic core 14 of the inductance value that changes coil 150 of the variation of washing machine water level; Be positioned at the inside of above-mentioned housing 11, and be placed with the magnetic core carriage 13 of above-mentioned magnetic core 14; Transmit the hydraulic pressure transfer means 12 of the corrugated tube of hydraulic pressure or barrier film and so on to above-mentioned magnetic core carriage 13; Be connected in the top of above-mentioned magnetic core carriage 13, have the rolling body support component 31 of the dip plane 35 of certain angle; Be positioned at above-mentioned rolling body support component 31 above, along with move up and down along the above-mentioned dip plane rolling body 33 of magnetic material of the inductance value that changes above-mentioned coil 150 of the vibrations of sink constitutes.
At this moment, the connect wires structure of (SBW) of the self-adhesion that constitutes above-mentioned coil 150 is that central part is copper cash 150a, the outside of above-mentioned copper cash is formed with the enamel paint coating 150b that is wrapped in it, and the outside of above-mentioned enamel paint coating 150b is formed with the bond layer 150c that can be wrapped in it.
Simultaneously, the connect wires bond layer 150c of (SBW) of above-mentioned self-adhesion can make it have viscosity by heating means such as hot blast or energisings.
There is the effect of the present invention of this structure as follows.
The coil 150 of water level of the present invention and vibration detection sensor 30, be by the self-adhesion different with original general electric wire (W) connect wires (SBW) be wound into, so not only the reeling condition of coil 150 is the most suitable, can also remain the reeling condition unanimity of coil 150.
Promptly, because be applicable to self-adhesion of the present invention connect wires (SBW) be that outer side at enamel paint coating 150b has bond layer 150c's, so heat wound electric wires (SBW) coil 150 backs having reeled, just can be by the viscosity between above-mentioned bond layer 150c, as shown in Figure 4, coil 150 also can remain original reeling condition under the situation that does not have other support component.
Therefore, water level that the present invention is suitable for and vibration detection sensor 30, to change the situation that the inductance value of coil 150 of the frequency characteristic of decision sensor also changes different with original reeling condition, can make the inductance value of coil 150 of decision frequency characteristic stable.
And water level of the present invention and vibration detection sensor 30 because of the reeling condition of inductance value of decision coil 150, are not all inequality when reeling at every turn, but stable, so improved efficiency of assembling.
Promptly, coil inductance value instability originally, each coiling all can be different, so consider the inductance value of coil when detecting, what adopt is that each coil loads onto all separately that the electric capacity of different capabilities obtains the method for required frequency characteristic, thereby exists the low problem of efficiency of assembling.And according to the present invention, the inductance value of the coil 150 that coiling finishes is stable, gets final product so only need load onto the electric capacity of same capability, thereby has improved efficiency of assembling.
Meanwhile, what water level of the present invention and vibration detection sensor 30 were suitable for is the support component that does not need other after being finished by coiling, by the connect wires coil 150 of (SBW) coiled of the self-adhesion that self just can maintain the original state, so can dispense when reeling with original electric wire (W) is the coil former of indispensable parts, thereby not only reduced the amount of parts of water level and vibration detection sensor 30, also improved efficiency of assembling.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (3)
1, a kind of water level of washing machine and vibration detection sensor include the housing that constitutes sensor, it is characterized in that: by being positioned at the coil that enclosure interior is made from bonding electric wire;
Be positioned at the magnetic core of the inductance value that enclosure interior changes coil along with the variation of washing machine water level moves up and down;
Be positioned at the magnetic core carriage that enclosure interior is placed with magnetic core;
Transmit the corrugated tube or the barrier film hydraulic pressure transfer means of hydraulic pressure to the magnetic core carriage;
Be connected in the top of magnetic core carriage, have the rolling body support component of the dip plane of certain angle;
Be positioned at the rolling body support component above, and along with move up and down along the dip plane rolling body of magnetic material of the inductance value that changes coil of the vibrations of sink constitutes.
2, the water level of washing machine according to claim 1 and vibration detection sensor, the self-adhesion that it is characterized in that described coil is connected wires, by the copper cash that is positioned at central part, the bond layer that is wrapped in outside the enamel paint coating that forms and the outside formation that is wrapped in enamel paint coating of copper cash constitutes.
3, the water level of washing machine according to claim 2 and vibration detection sensor is characterized in that the bond layer that described self-adhesion is connected wires is to make it be with viscosity by hot blast or energising type of heating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02123844 CN1276243C (en) | 2002-07-05 | 2002-07-05 | Water level and vibration detection sensor for washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02123844 CN1276243C (en) | 2002-07-05 | 2002-07-05 | Water level and vibration detection sensor for washing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1465961A CN1465961A (en) | 2004-01-07 |
| CN1276243C true CN1276243C (en) | 2006-09-20 |
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ID=34142512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02123844 Expired - Fee Related CN1276243C (en) | 2002-07-05 | 2002-07-05 | Water level and vibration detection sensor for washing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1276243C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITTO20050644A1 (en) * | 2005-09-20 | 2007-03-21 | Itw Metalflex Druzba Za Proizv | SYSTEM FOR DETECTION OF OPERATING PARAMETERS OF A APPLIANCE EQUIPPED WITH A RELATIVELY MOBILE COMPONENT |
| JP2007111159A (en) * | 2005-10-19 | 2007-05-10 | Matsushita Electric Ind Co Ltd | Washing machine |
| KR101605761B1 (en) * | 2009-01-07 | 2016-04-01 | 삼성전자 주식회사 | Water level/vibration detecting apparatus for washing machine and washing machine having the same |
| KR101716820B1 (en) * | 2010-12-14 | 2017-03-15 | 삼성전자주식회사 | Water level/vibration detecting apparatus for washing machine and washing machine having the same |
| CN104342876A (en) * | 2013-08-08 | 2015-02-11 | 海尔集团公司 | Washing machine capable of detecting cylinder collision by using water level sensor and detection method |
| CN107303542A (en) * | 2016-04-19 | 2017-10-31 | 贺默(上海)仪器科技有限公司 | Centrifuge balance master system |
| CN107059334B (en) * | 2017-05-08 | 2020-06-16 | 无锡飞翎电子有限公司 | Eccentric detection device of pulsator washing machine and pulsator washing machine |
-
2002
- 2002-07-05 CN CN 02123844 patent/CN1276243C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1465961A (en) | 2004-01-07 |
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Granted publication date: 20060920 |