CN1944771A - Steam generator with pressure sensor for drum washing machine and its control method - Google Patents
Steam generator with pressure sensor for drum washing machine and its control method Download PDFInfo
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- CN1944771A CN1944771A CN 200610014125 CN200610014125A CN1944771A CN 1944771 A CN1944771 A CN 1944771A CN 200610014125 CN200610014125 CN 200610014125 CN 200610014125 A CN200610014125 A CN 200610014125A CN 1944771 A CN1944771 A CN 1944771A
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- raising plant
- steam raising
- steam
- pressure sensor
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Abstract
The present invention discloses one kind of steam generator with pressure sensor for drum type washing machine and its control method. The steam generator includes one casing, one water level sensor set on the casing to detect the water level inside the steam generator, one heater inside the casing to heat water to form steam, and one pressure sensor set on the casing to detect pressure inside the steam generator. The beneficial effect of the present invention is effective prevention of overhigh pressure inside the steam generator. In case that the pressure inside the steam generator reaches some set value, the pressure sensor detects the pressure and the heater is made to cut off to avoid further pressure increase.
Description
Technical field
The present invention relates to a kind of tumbling-box washing machine, particularly relate to a kind of steam raising plant that has pressure sensor and control method thereof of tumbling-box washing machine.
Background technology
Usually washing machine can be divided into two types of pulsator washing machine and tumbling-box washing machines.In recent years, develop a kind of in washing process the tumbling-box washing machine of uperize.
Fig. 1 is the existing structural representation that has the tumbling-box washing machine of steam raising plant.Fig. 2 is the external structure schematic diagram of the steam raising plant of the existing tumbling-box washing machine that has a steam raising plant.Fig. 3 is the internal structure schematic diagram of steam raising plant shown in Figure 2.
As shown in Figure 1, the existing tumbling-box washing machine that has steam raising plant comprises: the shell 10 that forms the washing machine outward appearance; Flatly be supported on shell 10 inside and be used for storing the outer bucket 20 of cylindrical shape of washings; Can be rotatably set in the cylinder 30 of outer bucket 20 inside; Be connected with drum shaft and be used for the drive motors (not shown) of head roll 30 rotations; With the steam raising plant 50 that is used for to cylinder 30 inner supply steam.
The front of described shell 10 is formed with cylinder 30 inside and is connected, and is used for throwing in or get the dispensing port 13 except that clothing; The front of described shell 10 also is provided with rotatably and opens/close the gate 11 of dispensing port 13.
The inwall of described shell 10 is provided with outside running water pipe and is connected, and is used for the outwards water supply valve 15 and the water supply hose 25 of bucket 20 supplying washing water.
Described steam raising plant 50 is connected with water supply hose 25 and is connected.Water by water supply hose 25 inflow steam raising plants 50 is heated generation steam, then steam is supplied to cylinder 30.
Described steam raising plant 50 is provided with and is used for delivery of steam that steam raising plant 50 the is produced steam supply pipe 53 to cylinder 30 inside.
For to cylinder 30 inside uperize swimmingly, the end of described steam supply pipe 53 is provided with nozzle, and the end of nozzle stretches into cylinder 30 inside.
Below with reference to Fig. 2 and Fig. 3 the structure of described steam raising plant 50 is elaborated:
As shown in Figures 2 and 3, described steam raising plant 50 comprises: form outward appearance and form the lower casing 81 in the space that is used for storing water; Be combined in the top upper housing 82 of lower casing 81; Be arranged on lower casing 81 inner spaces and be used for water is added the heater 55 of thermosetting steam.
Described upper housing 82 is formed with feed water inlet 52a and steam drain 52b; Described feed water inlet 52a is connected with water supply valve 15; Described steam drain 52b is connected with steam supply pipe 53.
Described heater 55 is arranged on the bottom of lower casing 81, and water directly heats water under the state that is not had by water logging fully after flowing into steam raising plant 50.
Described upper housing 82 is provided with and is used for surveying the level sensor 60 that is stored in steam raising plant 50 water level inside and is used for surveying the water that heated by heater 55 and the temperature sensor 57 of the temperature of the steam of generation.
Described level sensor 60 is stored in the water level of the water of steam raising plant 50 inside by detection, makes the water of storage keep proper level always.
Specifically, when the water level of the water that is stored in steam raising plant 50 inside is lower than a reference value, open water supply valve 15, supply water to steam raising plant 50; When the water level of the water that is stored in steam raising plant 50 inside is higher than a reference value, then close water supply valve 15, stop to interrupt supplying water, and drive heater 55 work generation steam.
Described level sensor 60 comprises: form outward appearance and be used for fixing socket shell on steam raising plant 50; The bottom that is arranged on socket shell 61 is used for surveying the probe 62,63 and 64 of the water water level that is stored in steam raising plant 50 inside.
But, there is following shortcoming in the above-mentioned existing tumbling-box washing machine that has steam raising plant: when the steam drain of steam raising plant is stopped up by incrustation scale or foreign matter, heater in the steam raising plant works on, produce excess steam, cause the steam raising plant internal pressure excessive, can cause the breakage or the explosion accident of steam raising plant when serious.
Summary of the invention
Technical problem to be solved by this invention is, overcome the above-mentioned existing shortcoming that has the tumbling-box washing machine of steam raising plant, a kind of steam raising plant that has pressure sensor of tumbling-box washing machine is provided, prevents steam raising plant because the excessive fault of bringing of internal vapor pressure.
In order to solve described technical problem, the technical solution used in the present invention is: the steam raising plant that has pressure sensor of tumbling-box washing machine of the present invention comprises: comprising: by upper housing and lower casing in conjunction with the steam raising plant casing that forms; Be arranged on the level sensor that is used for surveying the steam raising plant water level inside on the steam raising plant casing; Be arranged on steam raising plant casing inside and be used for water is added the heater of thermosetting steam; Be arranged on the pressure sensor that is used for surveying the steam raising plant internal pressure on the upper housing.
Described pressure sensor forms with heater by microprocessor and is electrically connected.
The control method of the steam raising plant that has pressure sensor of tumbling-box washing machine of the present invention comprises the following steps:
Step 1: preestablish pressure;
Step 2: start washing machine, beginning is supplied water to steam raising plant;
Step 3: heater is started working, and heated scrub water makes it to become steam, and the steam of generation flows into cylinder inside by steam supply pipe;
Step 4: meanwhile, pressure sensor is surveyed the steam raising plant pressure inside;
Step 5: the force value and the setting pressure that detect are compared, according to the duty of comparative result control steam raising plant.
When the force value that detects during less than setting pressure, then heater works on; When the force value that detects is equal to or greater than setting pressure, then cut off heater power source, stop heating.
Beneficial effect of the present invention is: can prevent effectively because the excessive damage accident that causes of steam raising plant internal pressure.When the steam supply pipe of steam raising plant is stopped up by incrustation scale or other foreign matters, heater works on, when making the steam raising plant pressure inside be equal to or greater than setting pressure, pressure sensor can in time be surveyed this situation, heater is quit work immediately, thereby guarantee that the steam raising plant internal pressure surpasses setting pressure never, guarantees the security of products energy.
Description of drawings
Fig. 1 is the existing structural representation that has the tumbling-box washing machine of steam raising plant.
Fig. 2 is the external structure schematic diagram of the steam raising plant of the existing tumbling-box washing machine that has a steam raising plant.
Fig. 3 is the internal structure schematic diagram of steam raising plant shown in Figure 2.
Fig. 4 is the external structure schematic diagram of the steam raising plant that has pressure sensor of tumbling-box washing machine of the present invention.
Fig. 5 is the internal structure schematic diagram of the steam raising plant that has pressure sensor of tumbling-box washing machine of the present invention.
Fig. 6 is the main components annexation block diagram of the steam raising plant that has pressure sensor of tumbling-box washing machine of the present invention.
Fig. 7 is the control method flow chart of the steam raising plant that has pressure sensor of tumbling-box washing machine of the present invention.
Among the figure:
50: steam raising plant 55: heater
57: temperature sensor 60: level sensor
80: casing 81: lower casing
82: upper housing 100: pressure sensor
The specific embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail:
Fig. 4 is the external structure schematic diagram of the steam raising plant that has pressure sensor of tumbling-box washing machine of the present invention.Fig. 5 is the internal structure schematic diagram of the steam raising plant that has pressure sensor of tumbling-box washing machine of the present invention.
As shown in Figure 4 and Figure 5, described steam raising plant 50 comprises: by upper housing 82 and lower casing 81 in conjunction with the steam raising plant casing 80 that forms; Be arranged on the level sensor 60 that is used for surveying steam raising plant 50 water level inside on the steam raising plant casing 80; Be arranged on steam raising plant casing 80 inside and be used for water is added the heater 55 of thermosetting steam; Be arranged on the pressure sensor 100 that is used for surveying the steam raising plant internal pressure on the upper housing 82.
The end face of described steam raising plant casing 80 is provided with the temperature sensor 57 that is used for surveying steam raising plant 50 water temperature inside.
Described pressure sensor 100 also can be arranged on the side or bottom surface of casing 80, and plural pressure sensor 100 can also be set simultaneously.
The position of described pressure sensor 100 has the structure that is communicated with casing 80 inside and outsides, so that survey the pressure of casing 80 inner spaces.
Also be provided with feed water inlet 52a that is connected with water supply hose and the steam drain 52b that is connected with steam supply pipe 53 on the described steam raising plant casing 80.
Fig. 6 is the main components annexation block diagram of the steam raising plant that has pressure sensor of tumbling-box washing machine of the present invention.
As shown in Figure 6, form between described pressure sensor 100 and the microprocessor 200 and be electrically connected, form between microprocessor 200 and the heater 55 and be electrically connected.The output signal of described pressure sensor 100 sends microprocessor 200 to, and microprocessor 200 sends control signal according to the signal that receives to heater 55, thus the duty of control heater 55.
Be illustrated below in conjunction with the effect of accompanying drawing the steam raising plant that has pressure sensor of tumbling-box washing machine of the present invention:
Fig. 7 is the control method flow chart of the steam raising plant that has pressure sensor of tumbling-box washing machine of the present invention.
As shown in Figure 7, connect after the washing machine power supply, by water supply hose 25 to steam raising plant 50 inner supplying washing water.
Described heater 55 is started working, and heated scrub water makes it to become steam, and the steam of generation flows into cylinder 30 inside by steam supply pipe 53, carries out washing stroke.
The water level that described level sensor 60 probes 62,63 and 64 are surveyed in the steam raising plant 50.
Described pressure sensor 100 is surveyed steam raising plant 50 pressure inside; When the force value that detects during less than setting pressure, then heater works on; When the force value that detects is equal to or greater than setting pressure, then cut off heater power source, stop heating.
Thereby, can prevent that the steam raising plant internal pressure is excessive, avoid the generation of the impaired even explosion accident of steam raising plant.
It is worthy of note that protection scope of the present invention is not limited to the content of the above-mentioned specific embodiment, according to basic fundamental design of the present invention, those of ordinary skill in the art need not can associate some other embodiment through creative work.
Claims (4)
1. the steam raising plant that has pressure sensor of a tumbling-box washing machine comprises: by upper housing (82) and lower casing (81) in conjunction with the steam raising plant casing (80) that forms; Be arranged on the level sensor (60) that is used for surveying steam raising plant (50) water level inside on the steam raising plant casing (80); Be arranged on steam raising plant casing (80) inside and be used for water is added the heater (55) of thermosetting steam; It is characterized in that: also comprise being arranged on the pressure sensor (100) that is used for surveying the steam raising plant internal pressure on the upper housing (82).
2. the steam raising plant that has pressure sensor of tumbling-box washing machine according to claim 1 is characterized in that: described pressure sensor (100) is electrically connected with heater (55) formation by microprocessor (200).
3. the control method of the steam raising plant that has pressure sensor of a tumbling-box washing machine is characterized in that: comprise the following steps:
Step 1: preestablish pressure;
Step 2: start washing machine, beginning is supplied water to steam raising plant;
Step 3: heater is started working, and heated scrub water makes it to become steam, and the steam of generation flows into cylinder inside by steam supply pipe;
Step 4: meanwhile, pressure sensor is surveyed the steam raising plant pressure inside;
Step 5: the force value and the setting pressure that detect are compared, according to the duty of comparative result control steam raising plant.
4. according to the control method of the steam raising plant that has pressure sensor of claim 3 tumbling-box washing machine, it is characterized in that: when the force value that detects during less than setting pressure, then heater works on; When the force value that detects is equal to or greater than setting pressure, then cut off heater power source, stop heating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610014125 CN1944771A (en) | 2006-06-06 | 2006-06-06 | Steam generator with pressure sensor for drum washing machine and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610014125 CN1944771A (en) | 2006-06-06 | 2006-06-06 | Steam generator with pressure sensor for drum washing machine and its control method |
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| Publication Number | Publication Date |
|---|---|
| CN1944771A true CN1944771A (en) | 2007-04-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610014125 Pending CN1944771A (en) | 2006-06-06 | 2006-06-06 | Steam generator with pressure sensor for drum washing machine and its control method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100543367C (en) * | 2007-08-03 | 2009-09-23 | 南京乐金熊猫电器有限公司 | Steam generator and control method thereof |
| CN101749694B (en) * | 2010-02-05 | 2012-07-04 | 李广新 | Intelligently controlled steam boiler with high temperature and low pressure |
-
2006
- 2006-06-06 CN CN 200610014125 patent/CN1944771A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100543367C (en) * | 2007-08-03 | 2009-09-23 | 南京乐金熊猫电器有限公司 | Steam generator and control method thereof |
| CN101749694B (en) * | 2010-02-05 | 2012-07-04 | 李广新 | Intelligently controlled steam boiler with high temperature and low pressure |
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