CN1530611A - Automatic controller of refrigerator light - Google Patents
Automatic controller of refrigerator light Download PDFInfo
- Publication number
- CN1530611A CN1530611A CNA031197965A CN03119796A CN1530611A CN 1530611 A CN1530611 A CN 1530611A CN A031197965 A CNA031197965 A CN A031197965A CN 03119796 A CN03119796 A CN 03119796A CN 1530611 A CN1530611 A CN 1530611A
- Authority
- CN
- China
- Prior art keywords
- lamp
- refrigerator
- power supply
- controlled switch
- gate controlled
- 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.)
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Abstract
An automatic controller for the lamp of refrigerator is composed of a gate controlled switch, a power supply controlled by said switch, and a bimetal switch for cutting off said power supply when the lamp is over-heat. Itsadvantages are low cost and high reliability.
Description
Technical field
The invention belongs to the lighting device for refrigerator technical field, particularly use additional control loop about need not, but the just automatic control equipment of automatic open close refrigerator lamp.
Background technology
Generally, has the lamp that when refrigerator doors is turned on, refrigerator inside is brightened in the refrigerator.Such refrigerator lamp is after lighting, through setting the time, even also can close under the state that door is being held.
This is for preventing because of the lamp automatic control over-temperature protection that parts around the fire damage refrigerator design of powering for a long time.The automatic control equipment of old-fashioned refrigerator lamp is made of the microcomputer of relay of turning off the light and driving relay.Be elaborated scheming below.
Fig. 1 is the automatic control equipment circuit diagram of old-fashioned refrigerator lamp.As shown in the figure, it be by the switch according to door come the gate controlled switch (1) of break-make power supply (4), by above-mentioned gate controlled switch (1), energized (4), and lamp of being lighted (3) and detection gate controlled switch (1) are in closed condition and carry control signal through after setting the time, cut off between above-mentioned gate controlled switch (1) and the lamp (3) relay 2., thereby cut off the power supply (4) of lamp (3), the microcomputer (5) that extinguishes lamp (3) constitutes.
Below, the formation and the operation of the automatic control equipment of old-fashioned refrigerator lamp illustrated in further detail.
At first, when the consumer opened the door of refrigerator, according to opening of door, the state of gate controlled switch (1) was converted to connection, to lamp (3) power supply (4), refrigerator inside is brightened.
The power supply of this moment by gate controlled switch (1) and relay 2. contact power to lamp (3).
Meanwhile, microcomputer (5) detects gate controlled switch (1) and is converted into on-state, and the door that detects present refrigerator is to be in the state of opening.
So microcomputer (5) begins counting.
In above-mentioned state, if the door of refrigerator is shut, the switch of gate controlled switch (1) is converted disconnection again, cuts off the power supply (4) to lamp (3) power supply, so when refrigerator doors was in closed condition, lamp extinguished.
But when refrigerator doors is opened above above-mentioned microcomputer (5) when setting the time, calculate refrigerator doors and open the microcomputer (5) of time after process sets the time, control above-mentioned relay 2., cut off the electricity supply (4), promptly the dump of connecting power supply by gate controlled switch (1), thereby above-mentioned lamp (3) is extinguished, preventing because of the time of lighting a lamp surpasses certain hour when above, lamp (3) cross pyrolytic damage periphery circuit element and environment.
So,, relatively time of She Dinging and opening the time of lighting a lamp behind the door, use the power supply (4) that cuts off to lamp (3) power supply, prevent the long-time unlatching of the lamp (3) beyond the setting-up time for preventing the overheated of old-fashioned refrigerator lamp.
But like this because need additional loop and microcomputer (5) so can bring the problem of the unit price that increases refrigerator.
Summary of the invention
Be the problem of the existence that solves above-mentioned old-fashioned refrigerator, the invention provides does not a kind ofly need to use redundant mesh, does not increase the unit price cost and just can prevent the automatic control equipment that the refrigerator lamp is overheated.
For achieving the above object the technical scheme of being taked be by refrigerator lamp and the gate controlled switch of changing according to the switch of refrigerator doors, by the gate controlled switch power supply power supply and detect the temperature of lamp and the bimetal release serial connection of cutting off the electricity supply constitutes when design temperature is above.One end of bimetal release is fixed on a side of open-circuit line between gate controlled switch and the lamp, opposite side that the other end is connected open-circuit line and relatively makes its contact separation with design temperature or be connected according to the temperature of lamp, to prevent the overheated of lamp.
Advantage and good effect
1. the present invention need not use redundant mesh and microcomputer and use the bimetal release of thermal change bending to prevent the overheated of refrigerator lamp, has reduced the unit cost and the price of refrigerator.
2. the detection of use bimetal release is not the temperature according to the illumination generation of the lamp that sets the time, has increased preventing the trust sense effect of overheated operation after this illumination is controlled so carry out.
Description of drawings
Fig. 1: the automatic control equipment circuit diagram of old-fashioned refrigerator lamp.
Fig. 2: the automatic control equipment circuit diagram that utilizes refrigerator lamp of the present invention.
Among each figure:
1, gate controlled switch, 2, bimetal release,
2., relay, 3, lamp,
4, power supply, 5, microcomputer.
Execution mode
The present invention by refrigerator lamp (3) and the gate controlled switch of changing according to the switch of refrigerator doors (1), to the power supply (4) of lamp (3) power supply and be positioned at gate controlled switch (1) and lamp (3) between, and the temperature of working as lamp (3) rises, bend according to variations in temperature, constitute with bimetal release (2) serial connection of cutting off to the lamp power supply.
Below, the invention described above is illustrated in greater detail.
Above-mentioned bimetal release (2) is by two sheet metal manufacturings that change along with temperature and expansion rate is different.Has the character crooked along with the temperature of lamp (3).
Has the side that as above bimetal release (2) one ends of feature are fixed on open-circuit line between gate controlled switch (1) and the lamp (3), the other end installation that is connected with the other end of open-circuit line.
In such installment state, if the temperature of lamp (3) rises, bimetal release (2) will be crooked, causes the supply discontinuity of power supply (4), and lamp (3) is extinguished.
The material of above-mentioned bimetal release (2) mainly is that the little end that expands is the alloy of nickel and iron; The big end that expands is the alloy of copper and zinc, the alloy of nickel, manganese, iron, and the alloy of nickel, molybdenum, iron, or the alloy of manganese, nickel, copper etc.
Below, aforesaid operation of the present invention is described.
At first, when the consumer opened refrigerator doors, gate controlled switch (1) just was switched on, and thereupon, power supply is powered to lamp (3) by gate controlled switch (1) and bimetal release (2), lights lamp, makes refrigerator inside become bright.
Afterwards, in as above state, before lamp (3) heating, the door if the consumer turns a refrigerator off, gate controlled switch (1) just switch be opened, thereupon, power supply (4) can't be to lamp (3) power supply, lamp (3) is also just extinguished.
But, when if above-mentioned refrigerator doors continues to stay open, open heating when lamp (3) is long, the bimetal release (2) that detects these is setting the temperature bending, make its contact separation, thereupon, cut off power supply (4) to lamp (3) power supply, lamp (3) is closed, and it is overheated to prevent that above-mentioned lamp (3) from producing.
Claims (2)
1. the automatic control equipment of a refrigerator lamp is made of the anti-overheat awitch and the power supply of refrigerator lamp, gate controlled switch, unlatching when anti-lamp is long, it is characterized in that: it is by refrigerator lamp and the gate controlled switch of changing according to the switch of refrigerator doors, by the power supply of gate controlled switch to the lamp power supply, and when lamp was overheated, the bimetal release serial connection of cutting off to the lamp power supply constituted.
2. the automatic control equipment of refrigerator lamp according to claim 1, it is characterized in that its bimetal release one end is fixed on open-circuit line one side between gate controlled switch and the lamp, the other end is connected the opposite side of open-circuit line, and the temperature of the above-mentioned lamp of foundation and design temperature comparison, make its contact separation or connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031197965A CN1530611A (en) | 2003-03-12 | 2003-03-12 | Automatic controller of refrigerator light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031197965A CN1530611A (en) | 2003-03-12 | 2003-03-12 | Automatic controller of refrigerator light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1530611A true CN1530611A (en) | 2004-09-22 |
Family
ID=34285278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA031197965A Pending CN1530611A (en) | 2003-03-12 | 2003-03-12 | Automatic controller of refrigerator light |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1530611A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213368A (en) * | 2010-04-02 | 2011-10-12 | 太一节能系统股份有限公司 | Illuminating system for refrigerating equipment |
| CN106073679A (en) * | 2016-08-01 | 2016-11-09 | 珠海格力电器股份有限公司 | Dish-washing machine illuminator and dish-washing machine |
| CN108882460A (en) * | 2018-07-27 | 2018-11-23 | 厦门普为光电科技有限公司 | A kind of means of illumination and lighting system |
-
2003
- 2003-03-12 CN CNA031197965A patent/CN1530611A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213368A (en) * | 2010-04-02 | 2011-10-12 | 太一节能系统股份有限公司 | Illuminating system for refrigerating equipment |
| CN106073679A (en) * | 2016-08-01 | 2016-11-09 | 珠海格力电器股份有限公司 | Dish-washing machine illuminator and dish-washing machine |
| CN106073679B (en) * | 2016-08-01 | 2018-11-16 | 珠海格力电器股份有限公司 | Dish-washing machine lighting system and dish-washing machine |
| CN108882460A (en) * | 2018-07-27 | 2018-11-23 | 厦门普为光电科技有限公司 | A kind of means of illumination and lighting system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |