CN1600946A - Unit for measuring water quality in washing machine - Google Patents
Unit for measuring water quality in washing machine Download PDFInfo
- Publication number
- CN1600946A CN1600946A CN 03144447 CN03144447A CN1600946A CN 1600946 A CN1600946 A CN 1600946A CN 03144447 CN03144447 CN 03144447 CN 03144447 A CN03144447 A CN 03144447A CN 1600946 A CN1600946 A CN 1600946A
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- sensor
- outer housing
- electrode
- water quality
- washing machine
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- Detail Structures Of Washing Machines And Dryers (AREA)
Abstract
A water quality detecting device of washer consists of transducer shell set on outer cylinder, a pair of electrode transducer for detecting out washing water conductivity, protective rib for protecting electrode transducer, temp transducer for detecting out washing water temp and protection rib for protecting temp transducer. The leakage water is leaked out at internal side of protective rib down wards to protect the electrode transducer when leakage is occured.
Description
Technical field
The present invention relates to the checkout gear of washing machine,, prevent the water quality detecting device of the washing machine that electrode sensor conducts electricity owing to the washings that spill in the inside of shell especially about the structure of the water quality detecting device that improves washing machine.
Background technology
Usually, washing machine is to utilize suitable washing agent and mechanical force to remove the device of the spot on the foreign matter, after in the interior bucket of built-in washing wheel, dropping into washings, inject washing agent and washings for outer bucket, and utilize motor to rotate interior bucket and washing wheel, clean clothing through the process of washing, rinsing, dehydration successively.
So-called water quality is the term of the intensity of expression water, magnesium ion or the calcium ion of water that hardness is high because of containing slightly solubility, so reduce the washability of washing agent, this water can not be as domestic water and water for industrial use.Therefore, be equipped with the water quality detecting device that detects washing water quality in washing machine, washing machine is taked best mode of washing running according to detected value.
As shown in Figure 1, 2, the water quality detecting device of the washing machine of prior art comprises: the sensor outer housing 4 that is arranged at the lower end of air cartridge 2; Be arranged at the inboard of sensor outer housing 4, an end runs through the gauge hole 6 that forms on the sensor outer housing 4, detects the electrode sensor 8 of washing electrical conductivity of water; Be arranged at the inboard of sensor outer housing 4, an end is inserted in the projective structure 10 that forms on the sensor outer housing, detects the temperature sensor 12 of the water temperature of washings; Fill in sensor outer housing 6 inside, prevent that the epoxy resin 14 that washings leak from constituting.
Gauge hole 6 also is to be made of the 1st gauge hole 28 of an end that inserts the 1st sensor 24 and the 2nd gauge hole 30 that inserts an end of the 2nd sensor 26.
One end of temperature sensor 12 is inserted on the projective structure 10 of sensor outer housing 4.Projective structure 10 is the inside that is arranged at a certain side on the sensor outer housing 4, the structure of hollow and upper end closed, and an end of temperature sensor 12 inserts from its open end.Temperature sensor 12 contacts with washings indirectly, and is the temperature of media detection washings with projective structure 10.
Epoxy resin 14 fills in the inner space that is formed by shell 20 and casing cover 22 under the state of fusing and solidifies, and prevents that washings from passing through the slit outflow between gauge hole 6 and the electrode sensor 8.
But, after epoxy resin 14 long-time uses of the water quality detecting device of prior art design, compactness reduces, or breakage owing to being subjected to extraneous vibration and impulsive force, when causing sealing to reduce, washings can flow out by the slit between electrode sensor 8 and the gauge hole 6, and electrode sensor 8 is the media energising with the water that flow into sensor outer housing 4 inboards, cause electrode sensor 8 can't correctly measure the washing electrical conductivity of water, cause the mode of washing running of washing machine with mistake.And the epoxy resin 14 of fusing injects the process of sensor outer housing 4 solidified inside, may flow out by the slit of electrode sensor 6 and gauge hole 8.In installation process, electrode sensor 8 and temperature sensor 12 are inserted in the unusual difficulty of operation on gauge hole 6 and the projective structure 10, even after inserting, under the interference of the vibration in the external world and impulsive force, electrode sensor 8 and temperature sensor 12 also can break away from or be shifted.
Summary of the invention
Technical problem to be solved by this invention provides a kind of water quality detecting device of washing machine, even washings flow out by the slit of electrode sensor and gauge hole, also can not be the media energising with washings, can measure washing water quality exactly.And the epoxy resin before preventing to solidify in manufacturing process outwards flows out, and can be on gauge hole and projective structure installing electrodes sensor and temperature sensor easily.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: a kind of water quality detecting device of washing machine comprises: be arranged at the sensor outer housing on the outer barrel of washing machine; Be arranged at the inside of sensor outer housing, an end runs through in the gauge hole that forms on the sensor outer housing, measures the pair of electrodes sensor of washing electrical conductivity of water; Protrusion forms in the inside of sensor outer housing, surrounds the electrode sensor protection rib of electrode sensor; Be arranged at the inside of sensor outer housing, an end is inserted on the projective structure of the hollow of sensor outer housing inside and upper end closed, measures the temperature sensor of the temperature of washings; Protrusion forms in the inside of sensor outer housing, surrounds the temperature sensor protecting rib of temperature sensor.
Outwards protrusion has formed fixed lobe on certain of electrode sensor downside, has been equipped with the holddown groove that is inserted in fixed lobe on electrode sensor protection rib.
Outwards protrusion has formed fixed lobe on certain of temperature sensor downside, and has been equipped with the holddown groove that is inserted in fixed lobe on the temperature sensor protecting rib.
Sensor outer housing is the structure of the cylinder type of bottom surface opened, comprising: the top shell that has formed gauge hole and projective structure; Be arranged at the bottom surface of shell, make temperature sensor and electrode sensor and the extraneous casing cover that is connected.
Shell and casing cover constitute the inner space, load epoxy resin on the inner space.
In the water quality detecting device of the washing machine of the present invention's design; the 1st electrode sensor and the 2nd electrode sensor are isolated by electrode sensor protection rib; when washings flow out by the slit between electrode sensor and the gauge hole; the washings discharge that in electrode sensor protection rib, faces down; prevent that electrode sensor from being the media energising with the washings that leak, thereby can correctly measure electrical conductivity.And electrode sensor protection rib prevents that epoxy resin from flowing out by gauge hole before solidifying when the epoxy resin of fusing flows within shell and the casing cover.Electrode sensor protection rib and temperature protection rib have leading electrode sensor and temperature sensor and are inserted into effect on gauge hole and the projective structure.Electrode sensor protection rib and the supporting of temperature sensor protecting rib and fixed electrode sensor and temperature sensor prevent that electrode sensor and temperature sensor break away from or displacement when being subjected to external force and vibration in making and washing machine operation process.
Description of drawings
Fig. 1 is the cut-away view of water quality detecting device of the washing machine of prior art design.
Fig. 2 is the stereogram of water quality detecting device of the washing machine of prior art design.
Fig. 3 is the cut-away view of the water quality detecting device of the washing machine that designs of the present invention.
Fig. 4 is the partial perspective view of the water quality detecting device of the washing machine that designs of the present invention.
Fig. 5 a is the electrode sensor protection rib that designs of the present invention and the exploded perspective view of electrode sensor.
Fig. 5 b is the temperature sensor protecting rib that designs of the present invention and the exploded perspective view of temperature sensor.
Among the figure, 52: outer bucket; 54: air cartridge; 56: access hole; 58: sensor outer housing; 60: gauge hole; 62: electrode sensor; 64: electrode sensor protection rib; 66: projective structure; 68: temperature sensor; 70: the temperature sensor protecting rib; 72: epoxy resin; 84: connector.
The specific embodiment
Be described in further detail below in conjunction with the water quality detecting device of the drawings and specific embodiments washing machine of the present invention:
Shown in Fig. 3,4, usually washing machine injects washing agent and washings in the bucket 52 outside, and after in the interior bucket of built-in washing wheel, dropping into washings, and utilize motor (not have expression among the figure) rotate in the clean clothing of effect of bucket and washing wheel (not have among the figure to represent) dependence current and washing agent.
Here, the below of bucket 52 sides has formed the air cartridge 54 that constitutes one with it outside, and is provided with the access hole 56 of being convenient to washings discrepancy on a certain side of air cartridge 54 and outer bucket 52 connecting portions.
The washing machine water quality detecting device of the present invention's design comprises: be arranged at the sensor outer housing 58 on the air cartridge 54 shown in Fig. 3,4; Be arranged at the inside of sensor outer housing 58, the one end runs through in the gauge hole 60 that forms on the sensor outer housing 58, measures the pair of electrodes sensor 62 of washing electrical conductivity of water; Protrusion forms in the inside of sensor outer housing 58, surrounds the electrode sensor protection rib 64 of electrode sensor 62; Be arranged at the inside of sensor outer housing 58, an end is inserted on the projective structure 66 of the hollow of sensor outer housing 58 inside and upper end closed, measures the temperature sensor 68 of the temperature of washings; Protrusion forms in the inside of sensor outer housing 58, surrounds the temperature sensor protecting rib 70 of temperature sensor 68; Fill in the inside of sensor outer housing 58, prevent that the epoxy resin 72 that washings flow out from constituting.
Sensor outer housing 58 is cylinder types of bottom surface opened, comprising: the top shell 74 that has formed gauge hole 60 and projective structure 66; The casing cover 76 that is arranged on the bottom surface of opening of shell 74 constitutes.
Formed the 1st flange 78 that protrudes to the side in the lower end side of shell 74, and formed 2nd flange 80 corresponding with the 1st flange 78 on the side of casing cover 76, casing cover 76 is fixed on the shell 74 by the 2nd flange 80 is buckled on the 1st flange 78.Simultaneously, on the 1st flange 78 and the 2nd flange 80, be provided with pilot hole 82, utilize screw that sensor outer housing 58 is fixed on the air cartridge 54.
On casing cover 76, formed the measured value that extraction electrode sensor 62 and temperature sensor 68 detects, and made the electric wire of external power source connect the connector 84 of the other end of electrode sensor 62 and temperature sensor 68.
As Fig. 5 a, shown in the 5b, electrode sensor 62 keeps the 2nd electrode sensor 88 of certain distance to constitute by the 1st electrode sensor 86 with the 1st electrode sensor 86, one end of the 1st electrode sensor 86 and the 2nd electrode sensor 88 is positioned at the outside above the sensor outer housing 58, with washings is the media energising, detects electrical conductivity.
Simultaneously; gauge hole 60 comprises the 1st gauge hole 94 of an end that inserts the 1st electrode sensor 86 and inserts the 2nd gauge hole 96 formations of an end of the 2nd electrode sensor 88 that electrode protection rib 64 is arranged on the 1st electrode sensor 86 and the 2nd electrode sensor 88 too.
Electrode protection rib 64 structurally surrounds electrode sensor 62; when particularly flowing out washings in the slit between electromechanical transducer 62 and gauge hole 60, be provided with the gauge hole 60 that washings is guided to electromechanical transducer protection rib 64 inboards in the inboard of electrode sensor protection rib 64.
Inner face at electrode sensor protection rib 64 has been equipped with the holddown groove 94 that entangles fixed lobe 90, and electrode sensor 62 is guided to suitable fixed-site, in the influence that is subjected to extraneous vibration or when being subjected to impulsive force, prevents that electrode sensor 62 from moving.
One end of temperature sensor 68 is inserted on the projective structure 66 that forms on the sensor outer housing 58, and projective structure 66 is the hollow of formation on the sensor outer housing 58 and the structure of upper end closed, and an end of temperature sensor 68 inserts by open lower end.
The lower end of projective structure 66 is positioned at the inboard of temperature protection rib 70; and on the inner face of temperature sensor protecting rib 70, possessed the holddown groove 100 corresponding with fixed lobe 98; temperature sensor 68 is guided to suitable fixed-site, and prevent that temperature sensor 68 from moving when being subjected to external force or vibration.
Epoxy resin 72 flows into the inner space after-hardening of shell 74 and casing cover 76 formation under the state of fusing, prevent that washings from passing through the slit outflow between gauge hole 60 and the electromechanical transducer 62.
Epoxy resin 72 time can not produce volatile material in sclerosis, and volume can not change yet, and is very big for the adherence force of contact-making surface, not only has the mechanical performance of bending strength and hardness etc., but also have outstanding processing characteristics such as casting mold and inclosure.
Below, describe for the effect of the water quality detecting device of the washing machine of the present invention's design that as above constitutes:
Drop into washings in interior bucket after, during the running washing machine, washing machine injects washings for outer bucket 52, and washing agent is put within the outer bucket 52 after being washed aqueous fusionization.
Along with injecting washings in the outer bucket 52, washings flow into air cartridge 54 inside by access hole 56, and the top and washings of sensor outer housing 58 contact.
Simultaneously, when power supply being provided for electrode sensor 62 and temperature sensor 68, electrode sensor 62 is that the washing electrical conductivity of water is measured in the media energising with the washings that flow into air cartridge 54, and temperature sensor 68 is the temperature that media is measured washings indirectly with projective structure 66.
The measured value that as above obtains is sent to the outside by the terminal 92,99 of electrode sensor 62 and temperature sensor 68, and washing machine is selected best mode of washing running according to the measured value that obtains.
Here, when having formed the slit if epoxy resin 72 is impaired or sealing descends, the washings of air cartridge 54 flow into by the slit between electrode sensor 62 and the gauge hole 60, and flow out to the inboard of electrode protection rib 64.
Discharges that face down in electromechanical transducer that washings form on the 1st electrode sensor 74 and the 2nd electrode sensor 76 protection rib 64, therefore the 1st electrode sensor 74 and the 2nd electrode sensor 76 can't be that media is switched on the washings in the flow sensor shell 58.
Simultaneously, in the manufacturing process of water quality detecting device, when epoxy resin 72 was injected the inside of sensor outer housing 58, electrode sensor protection rib 64 prevented that epoxy resin 72 from flowing out by the slit between electrode sensor 62 and the gauge hole 60.And; when in gauge hole 60 and projective structure 66, inserting electrode sensor 62 and temperature sensor 68 respectively; electrode sensor 62 is guided in the gauge hole 60 by electrode sensor protection rib 64, and temperature sensor 68 is guided on the projective structure 66 by temperature sensor protecting rib 70.
Claims (5)
1, a kind of water quality detecting device of washing machine is characterized in that comprising: be arranged at the sensor outer housing (58) on the outer barrel of washing machine (52); Be arranged at the inside of sensor outer housing (58), an end runs through sensor outer housing (58) to be gone up in the gauge hole (60) that forms, and measures the pair of electrodes sensor (62) of washing electrical conductivity of water; Protrusion forms in the inside of sensor outer housing (58), surrounds the electrode sensor protection rib (64) of electrode sensor (62); Be arranged at the inside of sensor outer housing (58), an end is inserted on the hollow of sensor outer housing inside and the projective structure of upper end closed (66), measures the temperature sensor (68) of the temperature of washings; Protrusion forms in the inside of sensor outer housing (58), surrounds the temperature sensor protecting rib (70) of temperature sensor (68).
2, the water quality detecting device of washing machine according to claim 1; it is characterized in that outside the protrusion formed fixed lobe (90) on certain of electrode sensor (64) downside, on electrode sensor protection rib (64), be equipped with the holddown groove (94) that is inserted in fixed lobe (90).
3, the water quality detecting device of washing machine according to claim 1; it is characterized in that outside the protrusion formed fixed lobe (98) on certain of temperature sensor (68) downside, and on temperature sensor protecting rib (70), be equipped with the holddown groove (100) that is inserted in fixed lobe (98).
4, according to the water quality detecting device of claim 1,2 or 3 described washing machines, it is characterized in that sensor outer housing (58) is the structure of the cylinder type of bottom surface opened, comprising: the top shell (74) that has formed gauge hole (60) and projective structure (66); Be arranged at the bottom surface of shell (74), make temperature sensor (68) and electrode sensor (62) and the extraneous casing cover (76) that is connected.
The water quality detecting device of 5 washing machines according to claim 4 is characterized in that shell (74) and casing cover (76) constitute the inner space, load epoxy resin (72) on the inner space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03144447 CN1600946A (en) | 2003-09-28 | 2003-09-28 | Unit for measuring water quality in washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03144447 CN1600946A (en) | 2003-09-28 | 2003-09-28 | Unit for measuring water quality in washing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1600946A true CN1600946A (en) | 2005-03-30 |
Family
ID=34659604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03144447 Pending CN1600946A (en) | 2003-09-28 | 2003-09-28 | Unit for measuring water quality in washing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1600946A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101535788B (en) * | 2006-11-10 | 2012-02-01 | 迪瓦西公司 | sensing device and method |
| CN102634958A (en) * | 2012-03-28 | 2012-08-15 | 海尔集团公司 | Washing machine as well as control method and control device thereof |
| WO2015089796A1 (en) * | 2013-12-19 | 2015-06-25 | 谢虹 | Miniature water quality detector |
| CN109839353A (en) * | 2017-11-29 | 2019-06-04 | 捷腾光电股份有限公司 | Water quality sensor |
| CN109839354A (en) * | 2017-11-29 | 2019-06-04 | 捷腾光电股份有限公司 | Water quality sensor |
-
2003
- 2003-09-28 CN CN 03144447 patent/CN1600946A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101535788B (en) * | 2006-11-10 | 2012-02-01 | 迪瓦西公司 | sensing device and method |
| CN102634958A (en) * | 2012-03-28 | 2012-08-15 | 海尔集团公司 | Washing machine as well as control method and control device thereof |
| WO2015089796A1 (en) * | 2013-12-19 | 2015-06-25 | 谢虹 | Miniature water quality detector |
| CN109839353A (en) * | 2017-11-29 | 2019-06-04 | 捷腾光电股份有限公司 | Water quality sensor |
| CN109839354A (en) * | 2017-11-29 | 2019-06-04 | 捷腾光电股份有限公司 | Water quality sensor |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |