CN2788452Y - Timing circuit of toaster - Google Patents
Timing circuit of toaster Download PDFInfo
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- CN2788452Y CN2788452Y CN 200520054474 CN200520054474U CN2788452Y CN 2788452 Y CN2788452 Y CN 2788452Y CN 200520054474 CN200520054474 CN 200520054474 CN 200520054474 U CN200520054474 U CN 200520054474U CN 2788452 Y CN2788452 Y CN 2788452Y
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Abstract
The utility model discloses a timing circuit of a toaster which needs to solve a technical problem that under the condition that the toaster can not normally cut off a power supply and the toaster stops heating, output signals cause electricity of an armature coil to be switched off; a heating power supply is cut off, and the occurrence of accidents is avoided. The utility model uses a following technical scheme that a timing circuit of a toaster comprises a rectifying filter circuit, a main timing circuit and a coil drive circuit which are sequentially connected. Both ends of the main timing circuit are connected with an additional timing circuit in parallel. Since both of the ends of the main timing circuit of the utility model are connected with the additional timing circuit in parallel, when timing devices of the main timing circuit have failure, the additional timing circuit outputs control signals. Under the condition that the increase of the cost is very small, the use security is increased and the personal safety and the property safety of users are ensured.
Description
Technical field
The utility model relates to the timing circuit of a kind of control circuit of toaster, particularly a kind of toaster.
Background technology
Present toaster by useful signal of timing circuit output heating time, makes the armature coil outage, thereby cuts off heating power supply when arrive in heating time.In the use because the quality problems of components and parts itself regularly, make the heating time timing circuit fail to export a useful signal that makes the armature coil outage, cause toaster in the phenomenon that arrive in heating time and the continuation of can not cutting off the electricity supply is heated, thereby cause the generation of some accidents.
Summary of the invention
The purpose of this utility model provides a kind of timing circuit of toaster, and the technical problem that solve is under the situation that toaster can not the normal cutoff power supply stops to heat, and output signal makes the armature coil outage, cuts off heating power supply, avoids the generation of contingency.
The utility model is by the following technical solutions: a kind of timing circuit of toaster, comprise the current rectifying and wave filtering circuit that is linked in sequence, main timing circuit and coil driver, and described main timing circuit two ends are parallel with additional timing circuit.
Additional timing circuit of the present utility model adopts integrated circuit.
Integrated circuit employing 4060 of the present utility model, PT2511, CMS12530, CMS12510,555 or 555 and 4060 are in series.
Coil driver of the present utility model comprises the 21 triode and the 22 triode, the signal of additional timing circuit output is through the base stage of the 21 resistance to the 21 triodes, the signal of main timing circuit output is through the base stage of the 22 resistance to the 22 triodes, the grounded emitter of the 22 triode, collector electrode connects the emitter of the 21 triode, and the collector electrode of the 21 triode connects armature coil.
Coil driver of the present utility model comprises the 21 triode and the 22 triode, the signal of additional timing circuit output is through the base stage of the 21 resistance to the 21 triodes, the signal of main timing circuit output is through the base stage of the 22 resistance to the 22 triodes, the grounded emitter of the 22 triode, the collector electrode of collector electrode and the 21 triode, the positive pole of the 21 diode, one end of armature coil is connected the emitter of the 21 triode, another termination power of the negative pole of the 21 diode and armature coil.
Coil driver of the present utility model comprises the 21 triode and the 22 triode, the signal of additional timing circuit output is through the base stage of the 21 resistance to the 21 triodes, the signal of main timing circuit output is through the base stage of the 22 resistance to the 22 triodes, the grounded emitter of the 22 triode, collector electrode connects the collector electrode of the 21 triode, and the emitter of the 21 triode connects armature coil.
Coil driver of the present utility model comprises the 21 triode and the 22 triode, the signal of additional timing circuit output is through the base stage of the 21 resistance to the 21 triodes, the signal of main timing circuit output is through the base stage of the 22 resistance to the 22 triodes, the grounded emitter of the 22 triode, the emitter of collector electrode and the 21 triode, the positive pole of the 21 diode, one end of armature coil is connected the collector electrode of the 21 triode, another termination power of the negative pole of the 21 diode and armature coil.
Coil driver of the present utility model comprises the 21 triode and the 22 triode, the signal of additional timing circuit output is through the base stage of the 21 resistance to the 21 triodes, the signal of main timing circuit output is through the base stage of the 22 resistance to the 22 triodes, the grounded collector of the 22 triode, emitter connects the emitter of the 21 triode, and the collector electrode of the 21 triode connects armature coil.
Coil driver of the present utility model comprises the 21 triode and the 22 triode, the signal of additional timing circuit output is through the base stage of the 21 resistance to the 21 triodes, the signal of main timing circuit output is through the base stage of the 22 resistance to the 22 triodes, the grounded collector of the 22 triode, the emitter of emitter and the 21 triode, the positive pole of the 21 diode, one end of armature coil is connected the collector electrode of the 21 triode, another termination power of the negative pole of the 21 diode and armature coil.
Coil driver of the present utility model comprises the 21 triode and the 22 triode, the signal of additional timing circuit output is through the base stage of the 21 resistance to the 21 triodes, the signal of main timing circuit output is through the base stage of the 22 resistance to the 22 triodes, the grounded collector of the 22 triode, emitter connects the collector electrode of the 21 triode, and the emitter of the 21 triode connects armature coil.
Coil driver of the present utility model comprises the 21 triode and the 22 triode, the signal of additional timing circuit output is through the base stage of the 21 resistance to the 21 triodes, the signal of main timing circuit output is through the base stage of the 22 resistance to the 22 triodes, the grounded collector of the 22 triode, emitter is connected with the collector electrode of the 21 triode, the positive pole of the 21 diode, an end of armature coil, and the emitter of the 21 triode, the negative pole and the armature coil of the 21 diode connect power supply.
The signal of additional timing circuit output of the present utility model is later than the signal of main timing circuit output.
The utility model compared with prior art, main timing circuit two ends additional timing circuit in parallel, when the timing components and parts of main timing circuit break down, by additional timing circuit output control signal, under the very little situation of cost increase, increase safety in utilization greatly, ensured user's personal safety and property safety.
Description of drawings
Fig. 1 is the schematic block circuit diagram of the utility model embodiment.
Fig. 2 is the utility model embodiment current rectifying and wave filtering circuit () schematic diagram.
Fig. 3 is the utility model embodiment current rectifying and wave filtering circuit (two) schematic diagram.
Fig. 4 is the utility model embodiment current rectifying and wave filtering circuit (three) schematic diagram.
Fig. 5 is the utility model embodiment current rectifying and wave filtering circuit (four) schematic diagram.
Fig. 6 is the utility model embodiment current rectifying and wave filtering circuit (five) schematic diagram.
Fig. 7 is the utility model embodiment current rectifying and wave filtering circuit (six) schematic diagram.
Fig. 8 is the utility model embodiment current rectifying and wave filtering circuit (seven) schematic diagram.
Fig. 9 is the utility model embodiment current rectifying and wave filtering circuit (eight) schematic diagram.
Figure 10 is the utility model embodiment current rectifying and wave filtering circuit (nine) schematic diagram.
Figure 11 is the utility model embodiment current rectifying and wave filtering circuit (ten) schematic diagram.
Figure 12 is additional timing circuit () schematic diagram of the utility model embodiment.
Figure 13 is additional timing circuit (two) schematic diagram of the utility model embodiment.
Figure 14 is additional timing circuit (three) schematic diagram of the utility model embodiment.
Figure 15 is additional timing circuit (four) schematic diagram of the utility model embodiment.
Figure 16 is additional timing circuit (five) schematic diagram of the utility model embodiment.
Figure 17 is additional timing circuit (six) schematic diagram of the utility model embodiment.
Figure 18 is the utility model embodiment coil driver () schematic diagram.
Figure 19 is the utility model embodiment coil driver (two) schematic diagram.
Figure 20 is the utility model embodiment coil driver (three) schematic diagram.
Figure 21 is the utility model embodiment coil driver (four) schematic diagram.
Figure 22 is the utility model embodiment coil driver (five) schematic diagram.
Figure 23 is the utility model embodiment coil driver (six) schematic diagram.
Figure 24 is the utility model embodiment coil driver (seven) schematic diagram.
Figure 25 is the utility model embodiment coil driver (eight) schematic diagram.
Figure 26 is the utility model embodiment circuit theory diagrams.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail.As shown in Figure 1, the timing circuit of toaster of the present utility model comprises rectification filtering voltage stabilizing circuit, timing circuit and the coil driver that is linked in sequence, and timing circuit comprises main timing circuit and the additional timing circuit that is in parallel.After alternating current process full-wave rectification bridge or the halfwave rectifier, export unstable DC power supply, unsettled DC power supply obtains the galvanic current source after capacitor filtering and voltage-stabilizing device voltage stabilizing.The power supply of main timing circuit and additional timing circuit is given in the galvanic current source simultaneously.Timing circuit is made up of counting electronic device and oscillating electron device.The pulse that the oscillating circuit output frequency is adjustable, the frequency of pulse is by the parameter decision of oscillating electron device.The counting electronic device is counted the oscillating impulse that oscillating circuit produces, and when counting reaches the setting number, has just reached setting-up time, the corresponding pin of counting electronic device can export one with opposite before level signal.The drive circuit of additional timing circuit is to the not influence of normal output of main timing circuit, and main timing circuit is not when the time of setting, arrival had output signal, thereby additional timing circuit output signal makes coil blackout cut off heating power supply.
As shown in Figure 26,10V exports unsettled direct current to the alternating current between the 15V after the first diode D1 carries out halfwave rectifier, unsettled direct current is output galvanic current source VDD behind the filter circuit of the first electrochemical capacitor C1 and first resistance R, 1 composition.DC power supply VDD gives the power supply of main timing circuit and additional timing circuit simultaneously.First pin of timing IC in the additional timing circuit meets DC power supply VDD; The 8th pin ground connection; The parameter that connects the 31 resistance R 31, the 31 resistance R 31 between the second and the 3rd pin has determined the timing of additional timing circuit; The 7th pin is the timing output signal output, and when setting-up time was less than, the 7th pin was output as high level, and setting-up time is output low level then, and the 7th pin is connected with the base stage of the 21 triode Q21 by the 21 resistance R 21.The grounded emitter of the 22 triode Q22, the collector electrode of the 22 triode Q22 is connected with the emitter of the 21 triode Q21, the collector electrode of the 21 triode Q21 connects an end of armature coil and the positive pole of the 21 diode D21, the other end of armature coil and the negative pole of the 21 diode D21 meet power supply VCC, and the output signal of main timing circuit is connected with the base stage of the 22 triode Q22 by the 22 resistance R 22.When choosing the parameter of the 21 resistance R 21, must accomplish that the timing of additional timing circuit is bigger than the maximum timing of main timing circuit.When the in running order and main timing circuit timing of entire circuit is less than, output the 7th pin of additional timing circuit output high level, the 21 triode Q21 is in conducting state.When the operating time of main timing circuit arrives the timing of setting, main timing circuit output low level, the 22 triode Q22 ends, and makes the armature coil outage, thereby has cut off heating power supply; Surpass the time of setting when the operating time of main timing circuit, output the 7th pin output low level of additional timing circuit, the 21 triode Q21 ends, the armature coil outage, thus cut off heating power supply, reach the purpose of safe handling.
As Figure 12, Figure 13, Figure 14, Figure 15, Figure 16 and shown in Figure 17, the integrated circuit of additional timing circuit employing 4060, PT2511, CMS12530, CMS12510,555 or 555 and 4060 are in series.
As shown in figure 19, coil driver comprises the 21 triode Q21 and the 22 triode Q22, the signal of additional timing circuit output is through the base stage of the 21 resistance R the 21 to the 21 triode Q21, the signal of main timing circuit output is through the base stage of the 22 resistance R the 22 to the 22 triode Q22, the grounded emitter of the 22 triode Q22, the collector electrode of collector electrode and the 21 triode Q21, the positive pole of the 21 diode D21, the end of armature coil L is connected the emitter of the 21 triode Q21, another termination power of the negative pole of the 21 diode D21 and armature coil L.
As shown in figure 20, coil driver comprises the 21 triode Q21 and the 22 triode Q22, the signal of additional timing circuit output is through the base stage of the 21 resistance R the 21 to the 21 triode Q21, the signal of main timing circuit output is through the base stage of the 22 resistance R the 22 to the 22 triode Q22, the grounded emitter of the 22 triode Q22, collector electrode connects the collector electrode of the 21 triode Q21, and the emitter of the 21 triode Q21 meets armature coil L.
As shown in figure 21, coil driver comprises the 21 triode Q21 and the 22 triode Q22, the signal of additional timing circuit output is through the base stage of the 21 resistance R the 21 to the 21 triode Q21, the signal of main timing circuit output is through the base stage of the 22 resistance R the 22 to the 22 triode Q22, the grounded emitter of the 22 triode Q22, the emitter of collector electrode and the 21 triode Q21, the positive pole of the 21 diode D21, the end of armature coil L is connected the collector electrode of the 21 triode Q21, another termination power of the negative pole of the 21 diode D21 and armature coil L.
As shown in figure 22, coil driver comprises the 21 triode Q21 and the 22 triode Q22, the signal of additional timing circuit output is through the base stage of the 21 resistance R the 21 to the 21 triode Q21, the signal of main timing circuit output is through the base stage of the 22 resistance R the 22 to the 22 triode Q22, the grounded collector of the 22 triode Q22, emitter connects the emitter of the 21 triode Q21, and the collector electrode of the 21 triode Q21 meets armature coil L.
As shown in figure 23, coil driver comprises the 21 triode Q21 and the 22 triode Q22, the signal of additional timing circuit output is through the base stage of the 21 resistance R the 21 to the 21 triode Q21, the signal of main timing circuit output is through the base stage of the 22 resistance R the 22 to the 22 triode Q22, the grounded collector of the 22 triode Q22, the emitter of emitter and the 21 triode Q21, the positive pole of the 21 diode D21, the end of armature coil L is connected the collector electrode of the 21 triode Q21, another termination power of the negative pole of the 21 diode D21 and armature coil L.
As shown in figure 24, coil driver comprises the 21 triode Q21 and the 22 triode Q22, the signal of additional timing circuit output is through the base stage of the 21 resistance R the 21 to the 21 triode Q21, the signal of main timing circuit output is through the base stage of the 22 resistance R the 22 to the 22 triode Q22, the grounded collector of the 22 triode Q22, emitter connects the collector electrode of the 21 triode Q21, and the emitter of the 21 triode Q21 meets armature coil L.
As shown in figure 25, coil driver comprises the 21 triode Q21 and the 22 triode Q22, the signal of additional timing circuit output is through the base stage of the 21 resistance R the 21 to the 21 triode Q21, the signal of main timing circuit output is through the base stage of the 22 resistance R the 22 to the 22 triode Q22, the grounded collector of the 22 triode Q22, the collector electrode of emitter and the 21 triode Q21, the positive pole of the 21 diode D21, the end of armature coil L is connected the emitter of the 21 triode Q21, the negative pole of the 21 diode D21 and armature coil L connect power supply.
Claims (12)
1. the timing circuit of a toaster comprises the current rectifying and wave filtering circuit that is linked in sequence, main timing circuit and coil driver, it is characterized in that: described main timing circuit two ends are parallel with additional timing circuit.
2. the timing circuit of toaster according to claim 1 is characterized in that: described additional timing circuit employing integrated circuit.
3. the timing circuit of toaster according to claim 2 is characterized in that: described integrated circuit adopts 4060, PT2511, CMS12530, CMS12510,555 or 555 and 4060 are in series.
4. the timing circuit of toaster according to claim 3, it is characterized in that: described coil driver comprises the 21 triode and the 22 triode, the signal of additional timing circuit output is through the base stage of the 21 resistance to the 21 triodes, the signal of main timing circuit output is through the base stage of the 22 resistance to the 22 triodes, the grounded emitter of the 22 triode, collector electrode connects the emitter of the 21 triode, and the collector electrode of the 21 triode connects armature coil.
5. the timing circuit of toaster according to claim 3, it is characterized in that: described coil driver comprises the 21 triode and the 22 triode, the signal of additional timing circuit output is through the base stage of the 21 resistance to the 21 triodes, the signal of main timing circuit output is through the base stage of the two or two ten two resistance to the 22 triodes, the grounded emitter of the 22 triode, the collector electrode of collector electrode and the 21 triode, the positive pole of the 21 diode, one end of armature coil is connected the emitter of the 21 triode, another termination power of the negative pole of the 21 diode and armature coil.
6. the timing circuit of toaster according to claim 3, it is characterized in that: described coil driver comprises the 21 triode and the 22 triode, the signal of additional timing circuit output is through the base stage of the 21 resistance to the 21 triodes, the signal of main timing circuit output is through the base stage of the 22 resistance to the 22 triodes, the grounded emitter of the 22 triode, collector electrode connects the collector electrode of the 21 triode, and the emitter of the 21 triode connects armature coil.
7. the timing circuit of toaster according to claim 3, it is characterized in that: described coil driver comprises the 21 triode and the 22 triode, the signal of additional timing circuit output is through the base stage of the 21 resistance to the 21 triodes, the signal of main timing circuit output is through the base stage of the 22 resistance to the 22 triodes, the grounded emitter of the 22 triode, the emitter of collector electrode and the 21 triode, the positive pole of the 21 diode, one end of armature coil is connected the collector electrode of the 21 triode, another termination power of the negative pole of the 21 diode and armature coil.
8. the timing circuit of toaster according to claim 3, it is characterized in that: described coil driver comprises the 21 triode and the 22 triode, the signal of additional timing circuit output is through the base stage of the 21 resistance to the 21 triodes, the signal of main timing circuit output is through the base stage of the 22 resistance to the 22 triodes, the grounded collector of the 22 triode, emitter connects the emitter of the 21 triode, and the collector electrode of the 21 triode connects armature coil.
9. the timing circuit of toaster according to claim 3, it is characterized in that: described coil driver comprises the 21 triode and the 22 triode, the signal of additional timing circuit output is through the base stage of the 21 resistance to the 21 triodes, the signal of main timing circuit output is through the base stage of the 22 resistance to the 22 triodes, the grounded collector of the 22 triode, the emitter of emitter and the 21 triode, the positive pole of the 21 diode, one end of armature coil is connected the collector electrode of the 21 triode, another termination power of the negative pole of the 21 diode and armature coil.
10. the timing circuit of toaster according to claim 3, it is characterized in that: described coil driver comprises the 21 triode and the 22 triode, the signal of additional timing circuit output is through the base stage of the 21 resistance to the 21 triodes, the signal of main timing circuit output is through the base stage of the 22 resistance to the 22 triodes, the grounded collector of the 22 triode, emitter connects the collector electrode of the 21 triode, and the emitter of the two or two ten one triode connects armature coil.
11. the timing circuit of toaster according to claim 3, it is characterized in that: described coil driver comprises the 21 triode and the 22 triode, the signal of additional timing circuit output is through the base stage of the 21 resistance to the 21 triodes, the signal of main timing circuit output is through the base stage of the 22 resistance to the 22 triodes, the grounded collector of the 22 triode, the collector electrode of emitter and the 21 triode, the positive pole of the 21 diode, one end of armature coil is connected the emitter of the 21 triode, the negative pole and the armature coil of the 21 diode connect power supply.
12. the timing circuit according to the arbitrary described toaster of claim 1 to 11 is characterized in that:
The signal of described additional timing circuit output is later than the signal of main timing circuit output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520054474 CN2788452Y (en) | 2005-01-29 | 2005-01-29 | Timing circuit of toaster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520054474 CN2788452Y (en) | 2005-01-29 | 2005-01-29 | Timing circuit of toaster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2788452Y true CN2788452Y (en) | 2006-06-14 |
Family
ID=36786745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520054474 Expired - Fee Related CN2788452Y (en) | 2005-01-29 | 2005-01-29 | Timing circuit of toaster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2788452Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102508507A (en) * | 2011-12-30 | 2012-06-20 | 晶辉科技（深圳）有限公司 | Control method for sliced bread toasting time memory of toaster |
| CN104856584A (en) * | 2014-02-26 | 2015-08-26 | 珍巴多工业股份有限公司 | Toaster |
-
2005
- 2005-01-29 CN CN 200520054474 patent/CN2788452Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102508507A (en) * | 2011-12-30 | 2012-06-20 | 晶辉科技（深圳）有限公司 | Control method for sliced bread toasting time memory of toaster |
| CN104856584A (en) * | 2014-02-26 | 2015-08-26 | 珍巴多工业股份有限公司 | Toaster |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |