CN204832818U - Washing machine and be used for its key switch machine control circuit - Google Patents
Washing machine and be used for its key switch machine control circuit Download PDFInfo
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- CN204832818U CN204832818U CN201520456506.3U CN201520456506U CN204832818U CN 204832818 U CN204832818 U CN 204832818U CN 201520456506 U CN201520456506 U CN 201520456506U CN 204832818 U CN204832818 U CN 204832818U
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- switching tube
- trigger switch
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Abstract
The utility model discloses a washing machine's key switch machine control circuit, these switching on and shutting down control circuit includes trigger switch, start circuit and shutdown circuit, wherein, and disconnection after trigger switch is triggered closedly and maintains the first time of predetermineeing, the start circuit conduction and the circuit disconnection of shutting down, power supply exports washing machine to, and washing machine is in the start state. The utility model discloses a key switch machine control circuit, the realization is simple, and convenient operation requires to hang down to protection level for washing machine. The utility model also discloses a washing machine.
Description
Technical field
The utility model belongs to washing machine field, particularly relates to a kind of washing machine and the bond switching machine control circuit for it.
Background technology
Current, washing machine starts and closes main by following several mode, but several mode all exists some shortcomings, such as, 1. artificial plugging electric plug, the method needs the operation of labor intensive effort, inconvenient consumer uses, and also has impact to the life-span of socket; 2. use forceful electric power switch, be arranged in the orientation away from people's operation, the method generally by switch-linear hybrid in consumer touch easily less than position, as the machine back side etc., be also inconvenient to operate; 3. use forceful electric power button, be arranged in guidance panel, the method needs there is strict requirement to the type selecting of switch, ensures withstand voltage insulation, waterproof etc.; And need software to coordinate switching on and shutting down sequence when carrying out to detect, take software resource.
Utility model content
The utility model is intended to solve one of technical matters in correlation technique at least to a certain extent.For this reason, an object of the present utility model is to propose an a kind of bond switching machine control circuit for washing machine, and this control circuit realizes simple, handled easily, requires low to degree of protection.The utility model also proposes a kind of washing machine of this control circuit of application.
For solving the problem, the utility model proposes an a kind of bond switching machine control circuit for washing machine, comprising:
Trigger switch, one end of described trigger switch is connected with power supply;
Boot-strap circuit, described boot-strap circuit comprises: the first switching tube, the second end ground connection of described first switching tube; 3rd resistance, one end of described 3rd resistance is connected with the other end of described trigger switch, and the other end of described 3rd resistance is connected with the first end of described first switching tube; First resistance, one end of described first resistance and the three-terminal link of described first switching tube, the other end of described first resistance is connected with described power supply; Second resistance, one end of described second resistance is connected with the 3rd end of described first switching tube and one end of described first resistance respectively; Second switch pipe, the first end of described second switch pipe is connected with the other end of described second resistance, and the second end of described second switch pipe is connected with described power supply, and the 3rd end of described second switch pipe is connected with described washing machine;
Shutdown circuit, described shutdown circuit comprises: the 4th resistance, one end ground connection of described 4th resistance, and the other end of described 4th resistance is connected with the other end of described trigger switch; 5th resistance, one end of described 5th resistance is connected with the other end of described trigger switch and the other end of described first resistance respectively; 6th resistance, one end of described 6th resistance is connected with the other end of described 5th resistance, and one end of described 6th resistance and the other end of described 5th resistance have first node; Electric capacity, one end of described electric capacity is connected with described first node, the other end ground connection of described electric capacity; 3rd switching tube, the first end ground connection of described 3rd switching tube, the second end of described 3rd switching tube is connected with the other end of described 6th resistance, and the 3rd end of described 3rd switching tube is connected with described washing machine;
Wherein, be triggered closed and disconnect after maintaining the first Preset Time at described trigger switch, described boot-strap circuit conducting and described shutdown circuit disconnect, and described power supply exports described washing machine to, and described washing machine is in open state.
According to the switching on and shutting down control circuit for washing machine of the utility model embodiment, be triggered closed at trigger switch and disconnect after maintenance the first Preset Time, boot-strap circuit conducting and shutdown circuit disconnect, and power supply exports washing machine to, and washing machine is in open state, thus realize a key start control, simple to operate, be easy to user and use, in addition, do not need to touch forceful electric power parts, require to reduce to the degree of protection of product.
In addition, be triggered closed at described trigger switch and disconnect after maintenance the second Preset Time, described boot-strap circuit disconnects and described shutdown circuit conducting, described power supply stops exporting described washing machine to, described washing machine is in off-mode, wherein, described second Preset Time is greater than described first Preset Time.
Further, in embodiments more of the present utility model, a described bond switching machine control circuit also comprises: the 7th resistance, one end of described 7th resistance respectively with the second end of described first switching tube and the three-terminal link of described 3rd switching tube, the other end of described 7th resistance is connected with described washing machine.
For solving the problem, another aspect of the utility model proposes a kind of washing machine, and this washing machine comprises the bond switching machine control circuit described in above-mentioned aspect.
According to the washing machine of the utility model embodiment, by the switching on and shutting down control circuit of above-mentioned aspect embodiment, can realize a bond switching machine, not contact forceful electric power parts, degree of protection requires to reduce, user-friendly.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the bond switching machine control circuit for washing machine according to an embodiment of the present utility model;
Fig. 2 is the Washing machine switch machine process flow diagram according to another embodiment of the present utility model; And
Fig. 3 is the block diagram of the washing machine according to an embodiment of the present utility model.
Reference numeral:
Washing machine 1000, switching on and shutting down control circuit 100
Embodiment
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
The switching on and shutting down control circuit for washing machine proposed according to the utility model embodiment is described with reference to the accompanying drawings.
Fig. 1 is the block diagram of the bond switching machine control circuit for washing machine according to an embodiment of the present utility model.Switching on and shutting down control circuit 100 comprises trigger switch S1, boot-strap circuit and shutdown circuit.
Wherein, one end of trigger switch S1 is connected with power supply T such as 5V, and particularly, the output voltage of power supply T is DC voltage such as+5V, belongs to light current.
As shown in Figure 1, boot-strap circuit 10 comprises the first switching tube, the first resistance R1, the second resistance R2, the 3rd resistance R3 and second switch pipe.In preferred embodiment of the present utility model, the first switching tube is the first NPN type triode NPN1; Second switch pipe is P channel MOS tube PMOS1.
Second end 2 ground connection of the first switching tube; One end of 3rd resistance R3 is connected with the other end of trigger switch S1, and the other end of the 3rd resistance R3 is connected with the first end 1 of the first switching tube; One end of first resistance R1 is connected with the 3rd end 3 of the first switching tube, and the other end of the first resistance R1 is connected with power supply T; One end of second resistance R2 is connected with the 3rd end 3 of the first switching tube and one end of the first resistance R1 respectively; The first end 4 of second switch pipe is connected with the other end of the second resistance R2, and the second end 5 of second switch pipe is connected with power supply T, and the 3rd end 6 of second switch pipe is connected with washing machine L.
Shutdown circuit 30 comprises the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, electric capacity C and the 3rd switching tube.Wherein, one end ground connection of the 4th resistance R4, the other end of the 4th resistance R4 is connected with the other end of trigger switch S1; One end of 5th resistance R5 is connected with the other end of trigger switch S1 and the other end of the first resistance R1 respectively; One end of 6th resistance R6 is connected with the other end of the 5th resistance R5, and one end of the 6th resistance R6 and the other end of the 5th resistance R5 have first node; One end of electric capacity C is connected with first node, the other end ground connection of electric capacity C; First end 7 ground connection of the 3rd switching tube, the second end 8 of the 3rd switching tube is connected with the other end of the 6th resistance R6, and the 3rd end 9 of the 3rd switching tube is connected with washing machine L.
As described in Figure 1, foregoing circuit 100 also comprises the 7th resistance R7, one end of 7th resistance R7 is connected with the second end 2 of the first switching tube and the 3rd end 9 of the 3rd switching tube respectively, the other end of the 7th resistance R7 is connected with washing machine L, and namely the first switching tube is connected washing machine L with the 3rd switching tube by the 7th resistance R7.
Be triggered closed at trigger switch and disconnect after maintenance the first Preset Time, boot-strap circuit conducting and shutdown circuit 30 disconnect, power supply T exports washing machine L to, washing machine L is in open state, thus realizes a bond switching machine, simple to operate, be easy to user use, in addition, do not need to touch forceful electric power parts, require to reduce to the degree of protection of product.
The control circuit 100 of the utility model embodiment can also realize a key shutdown, particularly, be triggered closed at trigger switch and disconnect after maintenance the second Preset Time, boot-strap circuit disconnects and shutdown circuit conducting, power supply T stops exporting washing machine L to, washing machine L is in off-mode, thus realizes a key shutdown.Wherein, the second Preset Time is greater than the first Preset Time, can think, be short in trigger switch S1 during start, and press trigger switch S1 when shutting down realize by long, that is, hardware realizes shortly to start shooting by trigger switch S1, longly press trigger switch S1 and shut down, do not take software resource.
Particularly, in a particular embodiment of the present invention, the first switching tube is the first NPN type triode NPN1; Second switch pipe is P channel MOS tube PMOS1; 3rd switching tube is the second NPN type triode NPN2.
Referring to Fig. 1, the action sequence of the bond switching machine control circuit 100 for washing machine of foregoing circuit structure is described in detail.
Before power supply electrifying, trigger switch S1 is in off-state, in first end 1 such as Fig. 2 of first switching tube, the base stage of triode is 0V, first switching tube is in medium state, the second end 8 i.e. base stage of triode of the 3rd switching tube is 0V, and the 3rd switching tube is in cut-off state, the first end 4 of second switch pipe such as P type metal-oxide-semiconductor and the voltage of the second end 5 and Vgs=0V, metal-oxide-semiconductor is in cut-off state, exports the voltage LOAD+ of washing machine L to without electricity.
Shortly press trigger switch S1, now power supply T input voltage 5V is loaded into the first end of the first switching tube Q1 and the base stage of triode by the first resistance R1, the conducting at once of first switching tube, the Vgs=-5V of second switch pipe and metal-oxide-semiconductor, metal-oxide-semiconductor is in conducting state, the voltage LOAD+ exporting washing machine L to is 5V, + 5V is that electric capacity C charges by the 5th resistance R5 simultaneously, the first Preset Time but trigger switch S1 is only triggered, think short triggering, the charging voltage of electric capacity C is not enough to be increased to can the second end 8 i.e. base stage of triode of conducting the 3rd switching tube Q3, so the 3rd switching tube is still in cut-off state, now washing machine L obtains electric work.
After trigger switch S1 is released, output voltage LOAD+ maintains the conducting state of the first switching tube by the 7th resistance R7, the 3rd switching tube remain off state, and second switch pipe keeps conducting, and washing machine L maintains electricity, always in running order.
Length presses trigger switch S1, now the input voltage 5V of power supply T is loaded on the first end 1 i.e. base stage of triode of the first switching tube by the 3rd resistance R3, the conducting at once of first switching tube, the Vgs=-5V of second switch pipe such as metal-oxide-semiconductor, second switch pipe is in conducting state, output voltage LOAD+=5V, simultaneously, + 5V is charged to electric capacity C by the 5th resistance R5, due to trigger switch S1 be triggered the second Preset Time namely long by, the charging voltage of electric capacity C is by after some time can the base stage of conducting the 3rd switching tube, i.e. the 3rd switching tube conducting, now the first base stage of opening the light pipe is controlled to be pulled low to 0V by the 3rd end 9 of the 3rd switching tube i.e. collector of triode, first switching tube cut-off, washing machine L dead electricity.
After trigger switch S1 is released, due to the energy storage effect of electric capacity C, the 3rd switching tube maintains conducting state, and the first switching tube remain off state, second switch pipe remain off state, washing machine L is in off-mode.
Wherein, the response time of the trigger switch S1 i.e. setting of the first Preset Time and the second Preset Time can be changed by the value of adjustment electric capacity C.The input voltage of the control circuit 100 of the utility model embodiment can use within the specific limits, is not limited to+5V, and other voltage ranges need to adjust parameter.
As Fig. 2, the whole sequential of the Washing machine switch machine control circuit of the embodiment of the present invention is summarised as: T1, power supply electrifying; T2, shortly press trigger switch S1; T3, washing machine obtain electric; T4, length press trigger switch S1; T5, washing machine power-off.
Generally speaking, the switching on and shutting down control circuit for washing machine of the utility model embodiment, achieves light current one bond switching machine and controls, specifically on hardware, the short trigger switch S1 that presses realizes start, and the long trigger switch S1 that presses realizes shutdown, does not take software resource, circuit structure is simple, employing device is cheap, and debugging is simple, does not touch forceful electric power parts, require to reduce to the degree of protection of product, be easy to user and use.
Based on the switching on and shutting down control circuit for washing machine of above-described embodiment, the utility model on the other hand embodiment proposes a kind of washing machine.
Fig. 3 is the block diagram of the washing machine according to an embodiment of the present utility model, and as shown in Figure 3, this washing machine 1000 comprises the switching on and shutting down control circuit 100 of above-mentioned aspect embodiment.
According to the washing machine of the utility model embodiment, by the switching on and shutting down control circuit of above-mentioned aspect embodiment, can realize a bond switching machine, not contact forceful electric power parts, degree of protection requires to reduce, user-friendly.
In addition, in this manual, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In description of the present utility model, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
In the description of this instructions, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this instructions or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment, revises, replace and modification in scope of the present utility model.
Claims (4)
1., for a bond switching machine control circuit of washing machine, it is characterized in that, comprising:
Trigger switch, one end of described trigger switch is connected with power supply;
Boot-strap circuit, described boot-strap circuit comprises: the first switching tube, the second end ground connection of described first switching tube; 3rd resistance, one end of described 3rd resistance is connected with the other end of described trigger switch, and the other end of described 3rd resistance is connected with the first end of described first switching tube; First resistance, one end of described first resistance and the three-terminal link of described first switching tube, the other end of described first resistance is connected with described power supply; Second resistance, one end of described second resistance is connected with the 3rd end of described first switching tube and one end of described first resistance respectively; Second switch pipe, the first end of described second switch pipe is connected with the other end of described second resistance, and the second end of described second switch pipe is connected with described power supply, and the 3rd end of described second switch pipe is connected with described washing machine;
Shutdown circuit, described shutdown circuit comprises: the 4th resistance, one end ground connection of described 4th resistance, and the other end of described 4th resistance is connected with the other end of described trigger switch; 5th resistance, one end of described 5th resistance is connected with the other end of described trigger switch and the other end of described first resistance respectively; 6th resistance, one end of described 6th resistance is connected with the other end of described 5th resistance, and one end of described 6th resistance and the other end of described 5th resistance have first node; Electric capacity, one end of described electric capacity is connected with described first node, the other end ground connection of described electric capacity; 3rd switching tube, the first end ground connection of described 3rd switching tube, the second end of described 3rd switching tube is connected with the other end of described 6th resistance, and the 3rd end of described 3rd switching tube is connected with described washing machine;
Wherein, be triggered closed and disconnect after maintaining the first Preset Time at described trigger switch, described boot-strap circuit conducting and described shutdown circuit disconnect, and described power supply exports described washing machine to, and described washing machine is in open state.
2. as claimed in claim 1 for a bond switching machine control circuit of washing machine, it is characterized in that, be triggered closed at described trigger switch and disconnect after maintenance the second Preset Time, described boot-strap circuit disconnects and described shutdown circuit conducting, described power supply stops exporting described washing machine to, described washing machine is in off-mode, and wherein, described second Preset Time is greater than described first Preset Time.
3., as claimed in claim 2 for a bond switching machine control circuit of washing machine, it is characterized in that, also comprise:
7th resistance, one end of described 7th resistance respectively with the second end of described first switching tube and the three-terminal link of described 3rd switching tube, the other end of described 7th resistance is connected with described washing machine.
4. a washing machine, is characterized in that, comprises the bond switching machine control circuit as described in any one of claim 1-3.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520456506.3U CN204832818U (en) | 2015-06-29 | 2015-06-29 | Washing machine and be used for its key switch machine control circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520456506.3U CN204832818U (en) | 2015-06-29 | 2015-06-29 | Washing machine and be used for its key switch machine control circuit |
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| CN204832818U true CN204832818U (en) | 2015-12-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106292358A (en) * | 2015-06-29 | 2017-01-04 | 无锡小天鹅股份有限公司 | Washing machine and for its a key switch machine control circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106292358A (en) * | 2015-06-29 | 2017-01-04 | 无锡小天鹅股份有限公司 | Washing machine and for its a key switch machine control circuit |
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Effective date of registration: 20190806 Address after: 214028 No. 18 Changjiang South Road, Wuxi National High-tech Development Zone, Jiangsu Province Patentee after: Wuxi Swan Electrical Appliances Co., Ltd. Address before: 214028 Wuxi Changjiang Road, Wuxi New District, Jiangsu, No. 18 Patentee before: Wuxi Xiaotianer Co., Ltd. |