CN1980506A - Internal lighting device of domestic electric product, and control method therefor - Google Patents
Internal lighting device of domestic electric product, and control method therefor Download PDFInfo
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- CN1980506A CN1980506A CNA2005100164939A CN200510016493A CN1980506A CN 1980506 A CN1980506 A CN 1980506A CN A2005100164939 A CNA2005100164939 A CN A2005100164939A CN 200510016493 A CN200510016493 A CN 200510016493A CN 1980506 A CN1980506 A CN 1980506A
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- bulb
- door
- load
- switch
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
Its illumination apparatus consists of the load, the lamp bulb, the door switch, the load driving switch (LDS) and the microprocessor (MP). The load is used to execute the basic operation of home electric products (HEP). The lamp is used to illuminate the cavity of HEP. Depending on the opened or shut door, the door switch changes the contactor state to offer the path of the power supply toward the load or the bulb. LDS is used to control the conduction of the load or the bulb. MP controls LDS and supplies the power toward the load, after the door is shut and the user inputs the start instruction. MP controls to supply the power toward the bulb in a certain interval. The control method includes steps of: supplying power to the load, judging the states of door opened /shut during or after the operation, supplying power to the bulb and cutting power from the bulb. This invention controls effectively illumination to extend the bulb life.
Description
Technical field
The present invention relates to a kind of internal lighting device and control method thereof of household appliances.
Background technology
Recently, use household appliances such as microwave oven, gas range, clothing dryer, dishwasher in the family, thereby can improve user convenience.
When above-mentioned household appliances in operating process or behind the EO, when door is unlocked, in order to make the inner state of affirmation cavity (Cavity) that the user is more prone to, need in above-mentioned household appliances, be provided with other lighting device, above-mentioned lighting device be used to the to throw light on inside of household appliances.
Below, with reference to Fig. 1, the internal lighting device of existing household appliances is described in detail.
At first, the load (for example, magnetron, heater, motor etc.) 3 that is used to carry out the basic operation of household appliances will be connected to power line by door switch (Door Switch) 2 and load driving switch 4.
That is to say that above-mentioned door switch 2 is three contact switches that change the contact state according to the open and-shut mode of door, the 1st live wire (Live-line) that one end (1.) is connected to power line (L1), the other end (2.) is connected to an end of load 3.
In addition, an end of above-mentioned load driving switch 4 is connected to the 2nd live wire (L2) of power line, and its other end is connected to the other end of above-mentioned load 3.
Wherein, carry out opening and closing operations, use triac (Triac) as above-mentioned load driving switch 4 for the alternating current of above-mentioned load 3 is supplied with.The other end of above-mentioned load driving switch 4 is connected with the microcomputer (not shown) of control whole system, and opens/closed operation by above-mentioned control of microcomputer.
In addition, use bulb 1 as the lighting device of the inside cavity of illumination electronic product, an end of above-mentioned bulb 1 is connected to the 2nd live wire (L2) of power line, and its other end is connected to the other end (3.) of above-mentioned door switch 2.
Thus, in the electronic product of as above structure, according to the switching of door whether, will change the contact state of above-mentioned door switch 2, and control power supply feed path.
That is to say, under the pent state of door, 1. above-mentioned door switch 2 will switch to-2. contact state, and in the two ends of above-mentioned load 3 energized; On the contrary, under the state that door is unlocked, 1. above-mentioned door switch 2 will switch to-3. contact state, and in the two ends of above-mentioned bulb 1 energized.
According to aforesaid structure, when the user closes, 1. above-mentioned door switch will keep above-mentioned-2. contact state, thus reach the holding state that load 3 is driven.
Subsequently, when user's input operation initiation command, above-mentioned load driving switch 4 will be connected by control of microcomputer, to above-mentioned load 3 supplying electric currents, and above-mentioned load 3 be driven.
And in the process that above-mentioned load 3 drives or under the state that finish to drive, when the user opens, 1. above-mentioned door switch 2 will switch to-3. contact state, and to the two ends of above-mentioned bulb 1 supply power.
At this moment, above-mentioned bulb 1 will supply to power supply, but it will be used as luminous light source, and the inside of illumination cavities.
As mentioned above, under the situation of existing household appliances, above-mentioned bulb 1 is directly connected to power line under the state that does not have other relay (Relay), and according to the contact state of above-mentioned door switch 2, controls opening/closed operation of above-mentioned bulb 1.
But there are the following problems for the internal lighting device in the above-mentioned existing household appliances:
1, under the state that door is unlocked, bulb is opened according to the contact state of door switch inevitable, and the inside of illumination cavities, under the situation of not closing door, the illumination condition that will keep above-mentioned bulb, that is, the efficient that is used for backlighted bulb control mode of the prior art is lower.
2, do not close door the user, and with under its long-time situation of opening, above-mentioned bulb will continue to open, and improve its heating temp, thereby cause shortening the useful life of above-mentioned bulb.
Summary of the invention
Technical problem underlying to be solved by this invention is, overcome the above-mentioned defective of the internal lighting device existence of existing household appliances, and provide a kind of internal lighting device and control method thereof of household appliances, control to realize more effectively throwing light on, and improve the life-span and the reliability of lighting device.
The internal lighting device of household appliances of the present invention is:
A kind of internal lighting device of household appliances is characterized in that, comprising: load, bulb, door switch, load driving switch and microcomputer; Above-mentioned load, it is used to carry out the basic operation of household appliances; Above-mentioned bulb, its be used to throw light on inside of cavity (Cavity) of household appliances; Above-mentioned door switch, whether it changes the contact state according to the switching of door, can provide the power supply feed path to above-mentioned load or bulb; Above-mentioned load driving switch, it is used to control the electric current of above-mentioned load or bulb and whether connects; Above-mentioned microcomputer, it is used to control above-mentioned load driving switch, under the door closing state, during input user's operation initiation command, will be to above-mentioned load supply power; And under the state that door is opened, will with the regular hour to above-mentioned bulb supply power.
The internal lighting device of aforesaid household appliances, wherein door switch is three contact switches, and 1. the one end is connected to the 1st live wire of power supply, and 2. the other end is connected to an end of above-mentioned load, and 3. an end is connected to an end of above-mentioned bulb again.
The internal lighting device of aforesaid household appliances, wherein under the pent state of door, 1. door switch will switch to-2. contact; Under the state that door is unlocked, 1. above-mentioned door switch will switch to-3. contact.
The internal lighting device of aforesaid household appliances, wherein the load driving switch is made of the triac that is used for the Control current circulation status (Triac).
The internal lighting device of aforesaid household appliances, wherein an end of triac is connected to the 2nd live wire (L2) of power supply, and the other end is connected respectively to the other end of above-mentioned load and bulb, and an end is connected to above-mentioned microcomputer again.
The control method of the internal lighting device of household appliances of the present invention is:
A kind of control method of internal lighting device of household appliances comprises in the internal lighting device of household appliances: load, bulb, according to the switching of door whether change the contact state can to above-mentioned load or bulb provide the power supply feed path door switch, be used to control the load driving the switch whether electric current of above-mentioned load or bulb is connected; It is characterized in that it includes following several steps: under the door closing state, during input user's operation initiation command,, will connect the load driving switch by the power supply feed path of above-mentioned door switch, and to the step of above-mentioned load energized; The step whether door of judgement in operating process or behind the EO is opened; When detecting above-mentioned door when being unlocked, by the power supply feed path of above-mentioned door switch, will connect the load driving switch, and to the step of above-mentioned bulb energized; After above-mentioned bulb energized,, disconnect the step of the power supply of connecting in the above-mentioned bulb through behind the certain hour.
The present invention will improve the life-span and the reliability of products of bulb by the control mode of effectively throwing light on.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the circuit tie lines schematic diagram that has the internal lighting device that uses in the household appliances now;
Fig. 2 is the circuit tie lines schematic diagram of internal lighting device of the present invention;
Fig. 3 is the flow chart of the interior lighting control method of household appliances of the present invention.
The number in the figure explanation:
10: bulb (lamp) 20: door switch
30: load 40: the load driving switch
Embodiment
With reference to Fig. 2 and Fig. 3, the internal lighting device and the control method thereof of household appliances of the present invention described.
As shown in Figure 2, the internal lighting device of household appliances of the present invention, it includes: load 30, it is used to carry out the basic operation of household appliances; Bulb 10, its be used to throw light on inside of cavity (Cavity) of household appliances; Door switch 20, whether it changes the contact state according to the switching of door, can provide the power supply feed path to above-mentioned load 30 or bulb 10 selectivity; Load driving switch 40, it is used for switching the power supply supply of (switching) above-mentioned load 30 or bulb 10; Microcomputer (micom) (not shown), it is used to control above-mentioned load driving switch 40, under the door closing state, when importing user's operation initiation command, will be to above-mentioned load 30 supply powers, and under the state that door is opened, will with the regular hour to above-mentioned bulb 10 supply powers.
Wherein, 1. an end of above-mentioned door switch 20 is connected to the 1st live wire (Live-line) L1 of power supply, and 2. the other end is connected to an end of above-mentioned load 30, and 3. an end is connected to an end of above-mentioned bulb 10 again.Under the pent state of door, 1. above-mentioned door switch 20 will switch to-2. contact; Under the state that door is unlocked, 1. above-mentioned door switch 20 will switch to-3. contact.
In addition, above-mentioned load driving switch 40 is made of the triac that is used for the Control current circulation status (Triac), one end of above-mentioned load driving switch 40 is connected to the 2nd live wire L2 of power supply, the other end is connected respectively to the other end of above-mentioned load 30 and bulb 10, and an end is connected to above-mentioned microcomputer again.
In the present invention, switch to 1. at above-mentioned door switch 20-3. under the state of contact, will be by the opening/closed operation of above-mentioned load driving switch 40, and control above-mentioned bulb 10.
Below, will the interior lighting control method of the household appliances among the present invention of as above structure be described in detail.
As shown in Figure 3, under the pent state of door of household appliances, judge whether input operation initiation command (S10) of user.
Result in above-mentioned judgement, under the pent state of door of household electrical appliances product, door switch 20 is in and switches to 1.-the 2. state of contact, will be by the power supply feed path of above-mentioned door switch 20, energized in above-mentioned load 30, but, and will keep holding state simultaneously by above-mentioned load driving switch 40 restriction electric current supplies.
In the result (S10) of above-mentioned judgement, when user's input operation initiation command, will connect (ON) above-mentioned load driving switch 40, thereby in above-mentioned load 30 energized, and it is driven.(S20)
In the process that above-mentioned load 30 drives, judge whether above-mentioned door is unlocked, and, judges 1. whether above-mentioned door switch 20 switch to that is-3. contact (S30).
At this moment, when above-mentioned door is unlocked, 1. above-mentioned door switch 20 will switch to-3. contact, will change the power supply feed path thus, and make above-mentioned bulb 10 be connected to power supply.
And, when detecting opening by above-mentioned door switch 20, will keep connection (ON) state (S40) of above-mentioned load driving switch 40.
That is, when connecting above-mentioned load driving switch 40 under the state of energized in above-mentioned bulb 10, will be to above-mentioned bulb 10 making current, and make the inside of its illumination cavities.
In above-mentioned bulb 10, after the energized, will judge whether time (S50), and when through above-mentioned setting-up time, supply with in order to interrupt power supply, and will disconnect (OFF) above-mentioned load driving switch 40 (S60) with certain cycle through presetting.
As mentioned above, in the present invention, utilize the power supply feed path of above-mentioned door switch 20 above-mentioned loads 30 of decision or bulb 10, and utilize the electric current in above-mentioned load driving switch 40 above-mentioned loads 30 of control or the bulb 10 whether to connect.
In addition, under the state that door is unlocked, will be to above-mentioned bulb 10 supply powers, and make it carry out illumination functions; Through after the regular hour, the power supply in the above-mentioned bulb 10 of automatic disconnection is supplied with.
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.
Interior lighting device and the control method thereof of household appliances of the present invention have following effect:
The first, the on/off operation of bulb can be effectively controlled, thereby the efficient of bulb illumination function can be improved.
The second, even the state that door is held open for a long time through behind the certain hour, will be closed automatically Bulb, thus can prevent that the time that bulb begins is long, prolong service life and the reliability of bulb.
Claims (6)
1, a kind of internal lighting device of household appliances is characterized in that, comprising: load, bulb, door switch, load driving switch and microcomputer;
Above-mentioned load, it is used to carry out the basic operation of household appliances;
Above-mentioned bulb, its be used to throw light on inside of cavity (Cavity) of household appliances;
Above-mentioned door switch, whether it changes the contact state according to the switching of door, can provide the power supply feed path to above-mentioned load or bulb;
Above-mentioned load driving switch, it is used to control the electric current of above-mentioned load or bulb and whether connects;
Above-mentioned microcomputer, it is used to control above-mentioned load driving switch, under the door closing state, during input user's operation initiation command, will be to above-mentioned load supply power; And under the state that door is opened, will with the regular hour to above-mentioned bulb supply power.
2, the internal lighting device of household appliances according to claim 1 is characterized in that:
Above-mentioned door switch is three contact switches, and 1. the one end is connected to the 1st live wire (L1) of power supply, and 2. the other end is connected to an end of above-mentioned load, and 3. an end is connected to an end of above-mentioned bulb again.
3, the internal lighting device of household appliances according to claim 2 is characterized in that:
Under the pent state of door, 1. door switch will switch to-2. contact; Under the state that door is unlocked, 1. above-mentioned door switch will switch to-3. contact.
4, the internal lighting device of household appliances according to claim 1 is characterized in that:
Above-mentioned load driving switch is made of the triac that is used for the Control current circulation status.
5, the internal lighting device of household appliances according to claim 4 is characterized in that:
One end of above-mentioned triac is connected to the 2nd live wire (L2) of power supply, and the other end is connected respectively to the other end of above-mentioned load and bulb, and an end is connected to above-mentioned microcomputer again.
6, a kind of control method of internal lighting device of household appliances comprises in the internal lighting device of household appliances: load, bulb, according to the switching of door whether change the contact state can to above-mentioned load or bulb provide the power supply feed path door switch, be used to control the load driving the switch whether electric current of above-mentioned load or bulb is connected; It is characterized in that it includes following several steps:
Under the door closing state, during input user's operation initiation command,, will connect the load driving switch by the power supply feed path of above-mentioned door switch, and to the step of above-mentioned load energized;
The step whether door of judgement in operating process or behind the EO is opened;
When detecting above-mentioned door when being unlocked, by the power supply feed path of above-mentioned door switch, will connect the load driving switch, and to the step of above-mentioned bulb energized;
After above-mentioned bulb energized,, disconnect the step of the power supply of connecting in the above-mentioned bulb through behind the certain hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100164939A CN1980506A (en) | 2005-11-29 | 2005-11-29 | Internal lighting device of domestic electric product, and control method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100164939A CN1980506A (en) | 2005-11-29 | 2005-11-29 | Internal lighting device of domestic electric product, and control method therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1980506A true CN1980506A (en) | 2007-06-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005100164939A Pending CN1980506A (en) | 2005-11-29 | 2005-11-29 | Internal lighting device of domestic electric product, and control method therefor |
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| Country | Link |
|---|---|
| CN (1) | CN1980506A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2005
- 2005-11-29 CN CNA2005100164939A patent/CN1980506A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |