CN1316099C - Operating equipment for washing machine - Google Patents
Operating equipment for washing machine Download PDFInfo
- Publication number
- CN1316099C CN1316099C CNB021209952A CN02120995A CN1316099C CN 1316099 C CN1316099 C CN 1316099C CN B021209952 A CNB021209952 A CN B021209952A CN 02120995 A CN02120995 A CN 02120995A CN 1316099 C CN1316099 C CN 1316099C
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- display
- keyboard
- washing machine
- microprocessor
- transistor
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Abstract
The present invention discloses an operating device for a washing machine, which comprises a keyboard, a display and a microprocessor, wherein the commands of the washing machine are input by the keyboard. The input commands are displayed by the display, and the washing machine is controlled to operate by the microprocessor according to a user's commands. The keyboard and the display are respectively connected with the microprocessor, and the present invention also comprises a transistor circuit connected between the keyboard and the display. The keyboard is composed of a first and a second switch circuits, scanning waveforms are output by the microprocessor to the first and the second switch circuits and the display, and simultaneously the keyboard and the display are also scanned. Phase differences are generated by the scanning waveforms output to the first and the second switch circuits by the transistor circuit. The operating device for a washing machine of the present invention has the advantages of simple structure and small size, and a key input error caused by LED inverse voltage of the display can be prevented.
Description
Technical field
The present invention establishes the wash mill that relates to a kind of textiles, especially relates to a kind of control device of washing operation.
Background technology
At present, the widely used washing machine of general family has possessed the function that can wash the variety classes clothing from simple laundry function.
During use, water level or temperature that the person of typically using regulates washings by the keyboard of washing machine, it is required to make it satisfy the user.In addition, can also select multiple functions such as washing at a high speed, woolen knitwear washing, make and also can clean the clothing that is difficult to washing at home, and according to circumstances can increase and decrease the required time of washing clothes.For making the user learn washing situations such as the water level of selected washings and temperature, washing machine, therefore, also can in time be known when the user has imported wrong instruction by the content that LED shows its instruction according to the instruction operation that the user imported.
In addition, LED shows to open or close according to the user instruction from keyboard input and closes signal, and forms display by a plurality of LED, but because of the influence to described keyboard of the back voltage of formation thereon, usually can cause described keyboard to make a mistake.
In order to solve the problem of above-mentioned existence, as shown in Figure 1, a kind of washer operation display unit is disclosed by forming as the lower part: according to the program operation microcomputer of finishing in advance 70 in the flat 5-37671 of Japan's special permission bulletin, switch the scanner 71 of next signal according to the output signal of described microcomputer 70, be connected to described scanner 71 and pass through described microcomputer 70, operation signal is added to the switch loader 75 of washing machine, by being connected in series to described switch input block 75 and being provided with the light-emitting diode display 77 that the printed circuit board (PCB) of a plurality of LED is formed, be connected described switch input block 75 and described light-emitting diode display 77, flow to the diode 81a of described switch input block 75 from described LED display unit 77 in order to prevent electric current, 81b and 81c.Like this, can prevent key input error by described diode 81a, 81b and 81c.
But, washer operation display unit with said structure characteristics, for making scanner can scan the user instruction that is input to washing machine by scanning circuit, and show according to above-mentioned instruction and to open or close the LED that closes, above-mentioned microcomputer should possess a plurality of ports when design, make it can scan the information that receives above-mentioned keyboard and display.Therefore, this will cause the complicated of washer operation display unit, and has increased its size.In addition, prevent in the circuit that its back voltage limit value is low, therefore cancel key input error fully in the described back voltage that constitutes by diode.
Summary of the invention
In order to solve the problem that exists in the above-mentioned prior art, the invention provides a kind of keyboard with the user input instruction of making and show that to the outside institute import display of instruction, and the operating equipment for washing machine of energy while output scanning waveform; In addition, the back voltage between keyboard described in the operating equipment for washing machine of the present invention and the described display prevents that the loop from being to be made of transistor, thereby makes operating equipment for washing machine have high back voltage limit value.
The technical scheme of operating equipment for washing machine of the present invention is, it comprises the keyboard of input washing machine instruction, the display that instruction is imported in demonstration and the microprocessor of controlling washer operation according to user instruction, described keyboard is connected with microprocessor respectively with display, and it also includes the transistor circuit that is connected between described keyboard and the described display; Described keyboard is made of first and second on-off circuits, and described microprocessor also scans described keyboard and described display simultaneously to described first and second on-off circuits and described display output scanning waveform; Described transistor circuit makes the sweep waveform that outputs to described first and second derailing switches produce phase difference.
Transistor circuit described in the operating equipment for washing machine of the present invention comprises transistor and the power supply of powering to described transistor, and is connected the resistance between described transistor and the described power supply; Described transistorized colelctor electrode connects described first on-off circuit, and described transistorized base stage connects described display and described second switch circuit.Described display is provided with at least two LED, and described LED is in the state of closing that opens or closes according to the received user instruction of described microprocessor.
Compared with prior art, the beneficial effect of operating equipment for washing machine of the present invention is: the described microprocessor in the operating equipment for washing machine of the present invention passes through transistor circuit, and utilizes dephased sweep waveform to scan described keyboard and display.In the described transistor circuit, each transistorized colelctor electrode and base stage are connected respectively on each switch of the keyboard that constitutes input user instruction and execute key operation, and described transistor base is connected to the display that shows its instruction according to the user instruction that is input to described keyboard to the outside.Operating equipment for washing machine is simple in structure, volume is little thereby make, and can prevent the caused key input error of LED back voltage by display.
Description of drawings
Fig. 1 is the circuit diagram of prior art operating equipment for washing machine;
Fig. 2 is the circuit diagram of operating equipment for washing machine of the present invention;
Fig. 3 is the wavy curve figure that operating equipment for washing machine of the present invention produces.
The explanation of critical piece Reference numeral in the operating equipment for washing machine of the present invention:
10: keyboard 20: display
30: microprocessor 40: transistor circuit
The specific embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail:
As shown in Figure 2, operating equipment for washing machine of the present invention comprises the keyboard 10 of input washing machine directive command, the display 20 that instruction is imported in demonstration and the microprocessor 30 of controlling washer operation according to user instruction, described keyboard 10 is connected with microprocessor 30 respectively with display 20, and it also includes the transistor circuit 40 that is connected between described keyboard 10 and the described display 20; Described keyboard 10 is made of first and second on-off circuits 11 and 12, and described microprocessor 30 also scans described keyboard 10 and described display 20 simultaneously to described first and second on-off circuits 11 and 12 and described display 20 output scanning waveforms; Described transistor circuit 40 makes the sweep waveform that outputs to described first and second on-off circuits 11 and 12 produce phase difference.
Transistor circuit 40 described in the operating equipment for washing machine of the present invention comprises transistor Tr 10 and the power supply 41 of powering to described transistor Tr 10, and is connected the resistance 42 between described transistor Tr 10 and the described power supply 41; The colelctor electrode of described transistor Tr 10 connects described first on-off circuit 11, and the base stage of described transistor Tr 10 connects described display and described second switch circuit 12; Described display 20 is provided with at least two LED, and described LED is in the state of closing that opens or closes according to described microprocessor 30 received user instructions.
Above-mentioned keyboard 10 comprises: the 2b switch SW 2b, the 2c switch SW 2c of the relevant washing process kind of input that are used for importing the relevant water level instruction of 2a switch SW 2a, input of the 1a switch SW 1a of startup/pause instruction of user, 1b switch SW 1b that input process is selected, input reservation instruction; In case of necessity, can also comprise a plurality of resistance R 1, R2 and R3 with described keyboard 10 and described microprocessor 30 serial or parallel connections.Wherein, described 1a switch SW 1a and 1b switch SW 1b have constituted first on-off circuit 11 of described keyboard 10; Described 2a switch SW 2a, 2b switch SW 2b and 2c switch SW 2c constitute the second switch circuit 12 of described keyboard 10.
Meanwhile, described microprocessor 30 is made up of following several sections; Sweep waveform output port SO, the first sweep waveform input port SI1 and the second sweep waveform input port SI2; Wherein, described sweep waveform output port SO is made of four plug P1, P2, P3 and P4 to described keyboard 10 and described display 20 output scanning waveforms; The described first sweep waveform input port SI1 is made of four plug P5, P6, P7 and the P8 of reception by the sweep waveform of described display 20; The described second sweep waveform input port SI2 is made of three plug P70, P71 receiving sweep waveform by described keyboard 10 and P72.In addition, the sweep waveform of exporting from the plug P4 of described sweep waveform output port SO is sent to first and second on-off circuits 11 and 12 and described display 20 of described keyboard 10 respectively by described transistor circuit 40.
Also have, be provided with a plurality of LED in the described display 20, be provided with 16 LED in the present embodiment, i.e. L1 to L16 when user instruction is input to described microprocessor 30 by above-mentioned keyboard 10, can demonstrate the instruction that the user imports by described a plurality of LED.In addition, also being provided with a plurality of transistors that are connected with described a plurality of LED, is 8 transistors in the present embodiment, be Tr1, Tr2, Tr3, Tr4, Tr5, Tr6, Tr7 and Tr8, with a plurality of resistance, be provided with 4 resistance in the present embodiment, i.e. R5, R6, R7 and R8.So, be input to described microprocessor 30 from the sweep waveform of the input and output plug P1 to P8 of described microprocessor 30 output after by described a plurality of LED, thereby scan.
Describe the structure of described transistor circuit at last, it is made up of following components; Transistor Tr 10, to the power supply 41 of described transistor Tr 10 power supplies, with the resistance 42 that is connected described transistor Tr 10 and described power supply 41; The colelctor electrode of described transistor Tr 10 is connected with described first on-off circuit 11, and the base stage of described transistor Tr 10 and described display 20 and described second switch portion 12 are connected.
Fig. 3 shows the sweep waveform of each plug input and output in the operating equipment for washing machine circuit of the present invention; As four plug P1, P2, P3 and the P4 of sweep waveform output port SO in turn during the output scanning waveform, corresponding sweep waveform will be input among three plug P70, the P71 and P72 of waveform input port SI2., when the 0V low-voltage waveform is input to described plug P4, will carry out the i.e. scanning of L1 to L4, the 5V voltage above-mentioned second switch circuit 12 that is added to simultaneously here to LED in the described display 20.At this moment, when voltage waveform is input to above-mentioned plug P70, from described microprocessor 30, just can learn the operation that the 2a switch SW 2a in the second switch circuit 12 is carried out.When 5V high voltage waveform is input to described plug P4,5V voltage will be added in described first on-off circuit 11.At this moment, when voltage waveform is input to described plug P71, from described microprocessor 30, just can learn the operation that the 1b switch SW 1b in first on-off circuit 11 is carried out.
As mentioned above, in operating equipment for washing machine of the present invention, only used a transistor Tr 10, described transistor Tr 10 makes sweep waveform produce phase difference, and has only used a port, simultaneously to display and keyboard scan output scanning waveform.
Below explanation has the specific operation process of the operating equipment for washing machine of the present invention of said structure.
At first, plug P1, P2, P3 and the P4 of described microprocessor 30 by sweep waveform output port SO output scanning waveform in turn.
In the sweep waveform of described microprocessor 30 outputs, will be input to 12 LED of described display 20 from the sweep waveform of plug P1, P2 and P3 output, promptly among the L5 to L16.
In the sweep waveform of above-mentioned microprocessor 30 outputs, be input to four LED of described display 20 simultaneously from the low level sweep waveform of plug P4 output, be L1～L4, and the second switch circuit 12 of described keyboard 10, make it can scan described display 20 and described keyboard 10 simultaneously.
Finally, described microprocessor 30 is grasped the user instruction that is input to described second switch circuit 12 by the second sweep waveform input port SI2 that is made of plug P70, P71 and P72.And, when from plug P4 output high level waveform, described first on-off circuit 11 of described transistor circuit 40 scannings, described microprocessor 30 is grasped the user instruction that is input to the described first switch portion device 11 by described plug P70 and P71.
Claims (3)
1. operating equipment for washing machine, comprise the keyboard of input washing machine instruction, the display that instruction is imported in demonstration and the microprocessor of controlling washer operation according to user instruction, described keyboard is connected with microprocessor respectively with display, it is characterized in that, between described keyboard and described display, be connected with transistor circuit; Described keyboard is made of first and second on-off circuits, and described microprocessor also scans described keyboard and described display simultaneously to described first and second on-off circuits and described display output scanning waveform; Described transistor circuit makes the sweep waveform that outputs to described first and second on-off circuits produce phase difference.
2. operating equipment for washing machine according to claim 1 is characterized in that, described transistor circuit comprises transistor and the power supply of powering to described transistor, and is connected the resistance between described transistor and the described power supply; Described transistorized colelctor electrode connects described first on-off circuit, and described transistorized base stage connects described display and described second switch circuit.
3. operating equipment for washing machine according to claim 1 is characterized in that described display is provided with at least two LED, and described LED is in the state of closing that opens or closes according to the received user instruction of described microprocessor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021209952A CN1316099C (en) | 2002-06-07 | 2002-06-07 | Operating equipment for washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021209952A CN1316099C (en) | 2002-06-07 | 2002-06-07 | Operating equipment for washing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1464097A CN1464097A (en) | 2003-12-31 |
| CN1316099C true CN1316099C (en) | 2007-05-16 |
Family
ID=29742705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021209952A Expired - Fee Related CN1316099C (en) | 2002-06-07 | 2002-06-07 | Operating equipment for washing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1316099C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008040744A1 (en) * | 2008-07-25 | 2010-01-28 | BSH Bosch und Siemens Hausgeräte GmbH | Household appliance, in particular a dishwasher or a washing machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0336051A2 (en) * | 1988-04-02 | 1989-10-11 | AKO-Werke GmbH & Co | Circuit arrangement with an electro-mechanic programmed switching device and electronic evaluation circuit for apparatus |
| JPH03247390A (en) * | 1990-02-26 | 1991-11-05 | Toshiba Corp | Controller for washing machine |
| JP3247390B2 (en) * | 1996-07-15 | 2002-01-15 | ロディア シミ | Replenishment of Cellulose Nanofibrils with Carboxycellulose with Low Degree of Substitution |
-
2002
- 2002-06-07 CN CNB021209952A patent/CN1316099C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0336051A2 (en) * | 1988-04-02 | 1989-10-11 | AKO-Werke GmbH & Co | Circuit arrangement with an electro-mechanic programmed switching device and electronic evaluation circuit for apparatus |
| JPH03247390A (en) * | 1990-02-26 | 1991-11-05 | Toshiba Corp | Controller for washing machine |
| JP3247390B2 (en) * | 1996-07-15 | 2002-01-15 | ロディア シミ | Replenishment of Cellulose Nanofibrils with Carboxycellulose with Low Degree of Substitution |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1464097A (en) | 2003-12-31 |
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Granted publication date: 20070516 |