CN206226303U - Voltage conversion controls circuit and household electrical appliance - Google Patents
Voltage conversion controls circuit and household electrical appliance Download PDFInfo
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- CN206226303U CN206226303U CN201621297680.9U CN201621297680U CN206226303U CN 206226303 U CN206226303 U CN 206226303U CN 201621297680 U CN201621297680 U CN 201621297680U CN 206226303 U CN206226303 U CN 206226303U
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Abstract
The utility model provides a kind of voltage conversion and controls circuit and a kind of household electrical appliance, wherein, voltage conversion control circuit includes：Rectification module, for AC-input voltage to be converted into DC voltage；Voltage detection module, the DC voltage for detecting rectified module rectification output；Control module, the pressure value of the DC voltage detected for collection voltages detection module, and voltage threshold scope according to residing for the pressure value of DC voltage determine the pressure value of AC-input voltage, and corresponding control signal is generated with according to the pressure value of AC-input voltage；Voltage switching module, for according to control signal switch operating state, circuit being controlled to form the voltage conversion matched with the pressure value of AC-input voltage.The technical scheme, can carry out the purpose that circuit switching reaches quickly and easily change circuit structure according to different AC-input voltages, to realize exporting identical DC voltage automatically according to different AC-input voltages.
Description
Technical field
The utility model is related to household electrical appliance technical field, and circuit and one are controlled in particular to a kind of voltage conversion
Plant household electrical appliance.
Background technology
At present, household electrical appliance are most of all loads output using DC voltage control, but input voltage is alternating voltage,
This is accomplished by the process by alternating voltage to be converted to DC voltage.
As shown in figure 1, being the circuit theory diagrams of the DC voltage that the AC-input voltage of 220V is converted to 310V, then divide
The DC voltage exported not after positive-negative half-cycle is changed is 220 × 1.414=311V；In addition, as shown in Fig. 2 being by 110V
AC-input voltage be converted to 310V DC voltage circuit theory diagrams, then respectively through positive-negative half-cycle change after direct current
It is 110 × 2 × 1.414=311V to press.
And the situation that 110V and 220V alternating voltages coexist is there is in foreign country, therefore in order to avoid household electrical appliance are only applicable
In a kind of situation of alternating voltage, therefore, how to realize regardless of user it being which kind of voltage used, all without influence household electrical appliance
Normal use turns into problem demanding prompt solution.
Utility model content
The utility model is intended at least solve one of technical problem present in prior art or correlation technique.
Therefore, a purpose of the present utility model is to propose a kind of voltage conversion control circuit, can be according to difference
AC-input voltage carry out circuit switching reach quickly and easily change circuit structure purpose, to realize automatically according to difference
AC-input voltage output identical DC voltage, to overcome weak point of the prior art.
Another purpose of the present utility model is to propose the household electrical appliance that circuit is controlled with above-mentioned voltage conversion.
To realize above-mentioned at least one purpose, according to first aspect of the present utility model, it is proposed that a kind of voltage conversion control
Circuit processed, including：Rectification module, for AC-input voltage to be converted into DC voltage；Voltage detection module, passes through for detecting
The DC voltage of the rectification module rectification output；Control module, for gathering what the voltage detection module was detected
The pressure value of the DC voltage, and voltage threshold scope according to residing for the pressure value of the DC voltage determines the exchange input
The pressure value of voltage, corresponding control signal is generated with according to the pressure value of the AC-input voltage；Voltage switching module, for root
According to the control signal switch operating state, electricity is controlled to form the voltage conversion matched with the pressure value of the AC-input voltage
Road.
In the technical scheme, after energization work, being first converted into AC-input voltage by rectification module can be successively
The DC voltage that voltage supplied detection module is detected and control module is sampled, then control module is by judging voltage detection module
Voltage threshold scope residing for the value of the DC voltage for detecting determines the pressure value of the AC-input voltage being currently accessed, and generates
Control signal corresponding with the pressure value of the AC-input voltage is exported to voltage switching module, so that the voltage switching module root
According to the control signal switch operating state, formation adapts to the voltage conversion electricity of the pressure value of the AC-input voltage being currently accessed
Road, you can carry out the mesh that circuit structure is quickly and easily changed in circuit switching to reach with according to different AC-input voltages
, to realize exporting identical DC voltage automatically according to different AC-input voltages, it is ensured that no matter product accesses which kind of is handed over
Stream voltage can normal work, so as to improve the scope of application of product, improve Consumer's Experience.
Wherein, rectification module can be bridge rectifier module, including four diodes.
Voltage conversion control circuit in above-mentioned technical proposal of the present utility model, can also have following technology special
Levy：
In the above-mentioned technical solutions, it is preferable that the voltage switching module includes：Triode and relay；Wherein, it is described
The base stage of triode is connected to the output end of the control module, and the colelctor electrode of the triode is connected to the of the relay
One pin, the control signal is sent the second pin that the relay is controlled to the relay through the triode
With the connection status of three-prong.
In the technical scheme, for the electricity according to different AC-input voltage switch operating state switching circuit structures
Pressure handover module can include triode and relay, specifically, control module by triode send control signals to after
Electrical equipment, then realizes controlling circuit to voltage conversion by the second pin of control relay and the on off state of three-prong
The switching of circuit structure, to ensure to realize to export identical DC voltage automatically according to different AC-input voltages.
In any of the above-described technical scheme, it is preferable that the control module is less than in the pressure value for judging the DC voltage
Or during equal to preset voltage value, the pressure value of the AC-input voltage is determined for first voltage value, and judging the direct current
When the pressure value of voltage is more than the preset voltage value, the pressure value of the AC-input voltage is determined for second voltage value, wherein, institute
First voltage value is stated less than the second voltage value.
In the technical scheme, residing for the pressure value of DC voltage after control module is according to the rectified conversion for collecting
Voltage threshold scope when determining the pressure value of AC-input voltage, if it is determined that the pressure value of DC voltage is less than or equal to predeterminated voltage
Value, then the pressure value that can determine the AC-input voltage for now accessing is first voltage value, conversely, can then determine now to access
The pressure value of AC-input voltage be second voltage value more than first voltage value, specifically, preset voltage value preferably can be with
180V is taken as, and first voltage value is preferably 110V and second voltage value preferably 220V.
In any of the above-described technical scheme, it is preferable that the control module is it is determined that the pressure value of the AC-input voltage
During for the first voltage value, the first control signal is sent to the relay through the triode, to control second pipe
Pin and three-prong closure connection.
In the technical scheme, when control module determines that the pressure value of the AC-input voltage being currently accessed is less first
During magnitude of voltage, the second pin and three-prong for generating control relay are in the first control signal of closure state, and specifically
First control signal is sent to relay by triode, so that relay accesses voltage conversion control circuit, and then
The first voltage value is converted to the DC voltage that can be used for product work.
In any of the above-described technical scheme, it is preferable that the control module is it is determined that the pressure value of the AC-input voltage
During for the second voltage value, the second control signal is sent to the relay through the triode, to control second pipe
Pin and the three-prong are disconnected.
In the technical scheme, when control module determines that the pressure value of the AC-input voltage being currently accessed is larger second
During magnitude of voltage, the second control signal that second pin and three-prong of control relay are off is generated, and specifically
Second control signal is sent to relay by triode, so that relay should with voltage conversion control circuit disconnection
Second voltage value is converted to the DC voltage that can be used for product work.
In any of the above-described technical scheme, it is preferable that also include：First storage capacitor and the second storage capacitor；Wherein, institute
The positive pole for stating the first storage capacitor is connected to second pin of the relay and the negative pole of second storage capacitor, institute
The negative pole for stating the first storage capacitor is connected to the first port of the rectification module, and the positive pole of second storage capacitor connects
The 4th port of the rectification module is connected to, the negative pole of second storage capacitor is connected to second pipe of the relay
Pin；And the second port of the rectification module is connected to the I/O ports that the voltage conversion controls circuit, the rectification
3rd port of module is connected to the 2nd I/O ports that the voltage conversion controls circuit.
In the technical scheme, also including the first and second energy storage electricity between rectification module voltage switching module
Hold, when control module judges the pressure value of AC-input voltage as less first pressure value, the second pin of relay and the 3rd
Pin is in closure state, then when the positive half cycle in AC-input voltage, AC-input voltage controls electricity from voltage conversion
First I/O (Input/Output, input/output) port input on road, through relay, the first storage capacitor, rectification module
From the 2nd I/O ports output of voltage conversion control circuit after first port and the 3rd port, and when in exchange input electricity
During the negative half period of pressure, AC-input voltage is input into from the 2nd I/O ports of voltage conversion control circuit, and the 3rd of rectified module the
From the I/O ports output of voltage conversion control circuit behind port and the 4th port, the second storage capacitor and relay, obtain
Corresponding DC voltage；And when control module judges the pressure value of AC-input voltage as the second larger pressure value, relay
Second pin and three-prong are off, then when the positive half cycle in AC-input voltage, AC-input voltage from
The first I/O ports input of voltage conversion control circuit, the second port of rectified module and the 4th port, the second energy storage electricity
Appearance, the first storage capacitor, the first port of rectification module and the 3rd port are defeated from the 2nd I/O ports of voltage conversion control circuit
Go out, and when the negative half period in AC-input voltage, AC-input voltage controls the 2nd I/O ends of circuit from voltage conversion
Mouthful input, the 3rd port and the 4th port of rectified module, the second storage capacitor, the first storage capacitor, the of rectification module
Single port and second port obtain corresponding identical DC voltage from the I/O ports output of voltage conversion control circuit；
In this way, corresponding voltage conversion control circuit is matched according to different AC-input voltages, such that it is able to be based on different exchanges
Input obtains identical direct current output, improves the scope of application of product.
Further, the voltage conversion control circuit can also include electric with the first storage capacitor and the second energy storage respectively
Build-out resistor 3rd resistor and the 4th resistance that appearance is connected in parallel；And the first storage capacitor and the second storage capacitor can be electrolysis
Electric capacity.
In any of the above-described technical scheme, it is preferable that the voltage detection module include the first resistor that is connected in series and
Second resistance, and the control module is used to gather the DC voltage between the first resistor and the second resistance
Pressure value.
In the technical scheme, the DC voltage detection module for detecting the direct rectification output of rectified module includes string
Join the first resistor and second resistance for partial pressure of connection, and control module is used to gather DC voltage between two resistance
Pressure value, i.e., be available for control module directly to gather through the DC voltage after voltage detection module partial pressure, it is ensured that control module sample
The stability of the voltage for arriving；It is possible to further make the resistance of first resistor more than the resistance of second resistance.
In any of the above-described technical scheme, it is preferable that also including the Voltage stabilizing module in parallel with the second resistance.
In the technical scheme, in order to further ensure that the stability of the voltage that control module is sampled, one can also be entered
Step includes the Voltage stabilizing module in parallel with the second resistance of voltage detection module.
Further, the Voltage stabilizing module includes the electric capacity of voltage regulation being connected in parallel and lead position diode, wherein, electric capacity of voltage regulation
For filtering, and lead position diode is used for the pressure value that further restriction is input to the DC voltage of control module, so that it is guaranteed that electric
Press the stability of sampling.
According to the embodiment of the utility model third aspect, it is also proposed that a kind of household electrical appliance, including：Such as above-mentioned technical side
Voltage conversion control circuit any one of case.
Circuit is controlled by the voltage conversion, circuit switching can be carried out according to different AC-input voltages and reached simply
The purpose of circuit structure is quickly changed, to realize exporting identical DC voltage automatically according to different AC-input voltages.
In the above-mentioned technical solutions, the household electrical appliance include air-conditioner；Other household electrical appliance can certainly be included.
Additional aspect of the present utility model and advantage will be set forth in part in the description, partly by from following description
In become obvious, or by it is of the present utility model practice recognize.
Brief description of the drawings
Of the present utility model above-mentioned and/or additional aspect and advantage will from description of the accompanying drawings below to embodiment is combined
Become substantially and be readily appreciated that, wherein：
Fig. 1 shows that the voltage conversion of the first embodiment in correlation technique controls the principle schematic of circuit；
Fig. 2 shows that the voltage conversion of the second embodiment in correlation technique controls the principle schematic of circuit；
Fig. 3 shows that the voltage conversion of embodiment of the present utility model controls the schematic block diagram of circuit；
Fig. 4 shows the schematic block diagram of the voltage transformation module shown in Fig. 3；
Fig. 5 shows the schematic block diagram of the voltage detection module shown in Fig. 3；
Fig. 6 shows that the voltage conversion of embodiment of the present utility model controls the principle schematic of circuit.
Specific embodiment
In order to be more clearly understood that above-mentioned purpose of the present utility model, feature and advantage, below in conjunction with the accompanying drawings and tool
Body implementation method is further described in detail to the utility model.It should be noted that in the case where not conflicting, this Shen
Feature in embodiment please and embodiment can be mutually combined.
Many details are elaborated in the following description in order to fully understand the utility model, but, this practicality
It is new to be different from other modes described here using other to implement, therefore, protection domain of the present utility model is simultaneously
Do not limited by following public specific embodiment.
The voltage conversion control circuit of embodiment of the present utility model is specifically described with reference to Fig. 3 to Fig. 6.
As shown in figure 3, the voltage conversion control circuit 300 according to embodiment of the present utility model, including：Rectification module
302nd, voltage detection module 304, control module 306 and voltage switching module 308.
Wherein, the rectification module 302 is used to for AC-input voltage to be converted to DC voltage；The voltage detection module
304 are used for the DC voltage through the rectification of the rectification module 302 output；The control module 306 is used to gather the electricity
The pressure value of the DC voltage that pressure detection module 304 is detected, and the voltage threshold according to residing for the pressure value of the DC voltage
Value scope determines the pressure value of the AC-input voltage, with according to the corresponding control letter of the pressure value of AC-input voltage generation
Number；The voltage switching module 308 is used for according to the control signal switch operating state, and input electricity is exchanged with described to be formed
The voltage conversion control circuit 300 of the pressure value matching of pressure.
In this embodiment, after energization work, being first converted into AC-input voltage by rectification module 302 can be successively
The DC voltage that voltage supplied detection module 304 is detected and control module 306 is sampled, then control module 306 is by judging electricity
Voltage threshold scope residing for the value of the DC voltage that pressure detection module 304 is detected determines the AC-input voltage being currently accessed
Pressure value, and generate corresponding with the pressure value of AC-input voltage control signal and export to voltage switching module 308 so that
The voltage switching module 308 adapts to the AC-input voltage being currently accessed according to the control signal switch operating state, formation
Pressure value voltage conversion circuit, you can with according to different AC-input voltages carry out circuit switching to reach quickly and easily
The purpose of circuit structure is changed, to realize exporting identical DC voltage automatically according to different AC-input voltages, it is ensured that produce
Product no matter access which kind of alternating voltage can normal work, so as to improve the scope of application of product, improve Consumer's Experience.
Further, in the above-described embodiments, as shown in figure 4, the voltage switching module 308 includes：Triode 3082
With relay 3084.
Wherein, the base stage of the triode 3082 is connected to the output end of the control module 306, the triode 3082
Colelctor electrode be connected to the first pin of the relay 3084, by the control signal through the triode 3082 send to
The relay 3084, controls the second pin of the relay 3084 and the connection status of three-prong.
In this embodiment, for the voltage according to different AC-input voltage switch operating state switching circuit structures
Handover module 308 can include triode 3082 and relay 3084, and specifically, control module 306 will by triode 3082
Control signal is sent to relay 3084, then by second pin and the on off state of three-prong of control relay 3084
The switching of the circuit structure to voltage conversion control circuit 300 is realized, to ensure to realize to be input into electricity automatically according to different exchanges
Pressure output identical DC voltage.
Further, in any of the above-described embodiment, the control module 306 is small in the pressure value for judging the DC voltage
When preset voltage value, the pressure value of the AC-input voltage is determined for first voltage value, and judging described straight
When the pressure value for flowing voltage is more than the preset voltage value, the pressure value of the AC-input voltage is determined for second voltage value, wherein,
The first voltage value is less than the second voltage value.
In this embodiment, the pressure value institute of DC voltage after control module 306 is according to the rectified conversion for collecting
When the voltage threshold scope at place determines the pressure value of AC-input voltage, if it is determined that the pressure value of DC voltage is less than or equal to default electricity
Pressure value, then the pressure value that can determine the AC-input voltage for now accessing is first voltage value, conversely, can then determine now to connect
The pressure value of the AC-input voltage for entering is the second voltage value more than first voltage value, and specifically, preset voltage value preferably may be used
To be taken as 180V, and first voltage value is preferably 110V and second voltage value preferably 220V.
Further, in any of the above-described embodiment, the control module 306 is it is determined that the pressure of the AC-input voltage
It is worth during for the first voltage value, the first control signal is sent to the relay 3084 through the triode 3082, controls
Second pin and three-prong closure connection.
In this embodiment, when control module 306 determines that the pressure value of AC-input voltage that is currently accessed is less the
During one magnitude of voltage, the second pin and three-prong for generating control relay 3084 are in the first control signal of closure state,
And send to relay 3,084 first control signal especially by triode 3082, so that relay 3084 accesses the voltage
Conversion control circuit 300, and then the first voltage value is converted to the DC voltage that can be used for product work.
Further, in any of the above-described embodiment, the control module 306 is it is determined that the pressure of the AC-input voltage
It is worth during for the second voltage value, the second control signal is sent to the relay 3084 through the triode 3082, controls
Second pin and the three-prong are disconnected.
In this embodiment, when control module 306 determines that the pressure value of AC-input voltage being currently accessed is larger the
During two magnitudes of voltage, the second control signal that second pin and three-prong of control relay 3084 are off is generated,
And send to relay 3,084 second control signal especially by triode 3082, so that relay 3084 turns with the voltage
Change control circuit 300 and disconnect the DC voltage that the second voltage value is converted to and can be used for product work.
Further, in any of the above-described embodiment, as shown in figure 3, voltage conversion control circuit 300 also includes：
First storage capacitor and the second storage capacitor.
Wherein, the positive pole of first storage capacitor is connected to second pin and described of the relay 3084
The negative pole of two storage capacitors, the negative pole of first storage capacitor is connected to the first port of the rectification module 302, Yi Jisuo
The positive pole for stating the second storage capacitor is connected to the 4th port of the rectification module 302, and the negative pole of second storage capacitor connects
It is connected to second pin of the relay 3084；And the second port of the rectification module 302 is connected to the voltage
First I/O ports of conversion control circuit 300, the 3rd port of the rectification module 302 is connected to the voltage conversion control
2nd I/O ports of circuit 300.
In this embodiment, voltage conversion control circuit 300 also includes being located at the voltage switching module 308 of rectification module 302
Between the first and second storage capacitors, when control module 306 judges that the pressure value of AC-input voltage is less first pressure value
When, second pin and three-prong of relay 3084 are in closure state, then when the positive half cycle in AC-input voltage,
AC-input voltage is passed through from an I/O (Input/Output, input/output) port input of voltage conversion control circuit 300
Behind relay 3084, the first storage capacitor 310, the first port of rectification module 302 and the 3rd port electricity is controlled from voltage conversion
The 2nd I/O ports output on road 300, and when the negative half period in AC-input voltage, AC-input voltage turns from voltage
Change the 2nd I/O ports input of control circuit 300, the 3rd port of rectified module 302 and the 4th port, the second storage capacitor
312 and relay 3084 after from voltage conversion control circuit 300 an I/O ports output, obtain corresponding DC voltage；And
When control module 306 judges the pressure value of AC-input voltage as the second larger pressure value, the second pin of relay 3084 and
Three-prong is off, then when the positive half cycle in AC-input voltage, AC-input voltage is from voltage conversion control
The first I/O ports input of circuit processed 300, the second port of rectified module 302 and the 4th port, the second storage capacitor 312,
First storage capacitor 310, the first port of rectification module 302 and the 3rd port control the 2nd I/O of circuit 300 from voltage conversion
Port exports, and when the negative half period in AC-input voltage, AC-input voltage controls circuit 300 from voltage conversion
The input of 2nd I/O ports, the 3rd port of rectified module 302 and the 4th port, the second storage capacitor 312, the first energy storage electricity
Hold the 310, first port of rectification module 302 and second port from the I/O ports output of voltage conversion control circuit 300,
Obtain corresponding identical DC voltage；In this way, matching corresponding voltage conversion control electricity according to different AC-input voltages
Road 300, the exchange input such that it is able to be based on different obtains identical direct current output, improves the scope of application of product.
Further, in any of the above-described embodiment, as shown in figure 5, the voltage detection module 304 includes being connected in series
First resistor 3042 and second resistance 3044, and the control module 306 is used in the first resistor 3042 and described
The pressure value of the DC voltage is gathered between second resistance 3044.
In this embodiment, wrapped for detecting the DC voltage detection module 304 of the direct rectification of rectified module 302 output
The first resistor 3042 and second resistance 3044 for partial pressure being connected in series are included, and control module 306 is used for from two resistance
Between gather DC voltage pressure value, i.e., be available for control module 306 direct through the DC voltage after the partial pressure of voltage detection module 304
Collection, it is ensured that the stability of the voltage that control module 306 is sampled；It is possible to further make the resistance of first resistor 3042 big
In the resistance of second resistance 3044.
Further, in any of the above-described embodiment, as shown in figure 3, the voltage conversion control circuit 300 also include with
The Voltage stabilizing module 314 of the parallel connection of the second resistance 3044.
In this embodiment, in order to further ensure that the stability of the voltage that control module 306 is sampled, one can also be entered
Step includes the Voltage stabilizing module 314 in parallel with the second resistance 3044 of voltage detection module 304.
Further, in order to be more clearly understood from the technical solution of the utility model, it is illustrated in figure 6 the utility model
Embodiment voltage conversion control circuit 300 principle schematic, wherein, AC-L and AC-N in figure represent the voltage respectively
First I/O ports of conversion control circuit 300 and the 2nd I/O ports, and rectification module BR1 (i.e. rectification module 302) is specifically
Bridge rectifier module, including four diodes are employed, AC-input voltage is from after AC-L and AC-N inputs through rectification module BR1
Exported in dc bus output port DC-N and DC-P after rectification, further, including the resistance R1 and R188 that are connected in series are (i.e.
First resistor 3042 and second resistance 3044) voltage detection module 304 be used for detect DC-N and DC-P output DC voltage,
It is defeated after being processed through the voltage stabilizing of Voltage stabilizing module 314 including being connected in parallel electric capacity of voltage regulation C1 and lead diode D103 with resistance R188
Go out to chip (i.e. control module 306) and sampled for it, wherein, electric capacity of voltage regulation C1 is used to filter, and lead position diode D103 is used for
The pressure value of the DC voltage for being input to chip is further limited, so that it is guaranteed that the stability of voltage sample, so, it is ensured that defeated
Enter to the voltage of chip and be no more than 5V and 0V.
When chip is determining the pressure value size of the DC voltage that voltage detection module is detected, the voltage according to residing for it
Threshold range determines the pressure value of the AC-input voltage of input, so as to export corresponding control signal through triode Q3 (i.e. three poles
Pipe 3082) export to relay RY5 (i.e. relay 3084), to control its on off state, so as to be input into for different exchanges
Voltage carries out the switching of circuit structure to export identical DC voltage.
Specifically, when chip determines that the pressure value of the DC voltage that voltage detection module is detected is less than or equal to 180V (i.e.
Preset voltage value) when, the pressure value of ac output voltage is determined for 110V (i.e. first voltage value), chip is exported by triode Q5
Control signal, closing relay RY5, then when the positive half cycle in AC-input voltage, electric current is flowed into from AC-L, by relay
Device RY5, electric capacity E3 (i.e. the first storage capacitor 310), 1 pin of rectification module BR1 and 3 pin (i.e. first port and second port)
Afterwards, output 311V returns to AC-N；When the negative half period in AC-input voltage, electric current is flowed into from AC-N, by rectification module
After 3 pin and 4 pin (i.e. the 4th port), electric capacity E4 (i.e. the second storage capacitor 312), the relay RY5 of BR1, output 311V is returned to
AC-L.When chip determines that the pressure value of the DC voltage that voltage detection module is detected is more than 180V, ac output voltage is determined
Pressure value be 220V (i.e. second voltage value), chip disconnects relay RY5 by triode Q5 output control signals, then works as place
When the positive half cycle of AC-input voltage, electric current is flowed into from AC-L, by 2 pin (i.e. second port) of rectification module BR1 and 4
After pin, electric capacity E4 and E3,1 pin of rectification module BR1 and 3 pin, output 311V returns to AC-N；When negative in AC-input voltage
During half cycle, electric current from AC-N flow into, by 3 pin and 4 pin of rectification module BR1, electric capacity E4 and E3,1 pin of rectification module BR1 and
After 2 pin, output 311V returns to AC-L.
Further, as described in Figure 6, voltage conversion control circuit also includes being connected in parallel with electric capacity E3 and electric capacity E4 respectively
Build-out resistor R701 and R702, and electric capacity E3 and electric capacity E4 can be electrochemical capacitor；And the delivery outlet in chip and three poles
The base stage of pipe Q5 is connected between resistance R33, and triode Q5 grounded emitter, resistance is connected between base stage and emitter stage
R41。
Further, the parameter value of each electronic device in Fig. 6 can be set with concrete condition, to meet making for user
Use demand.
According to the embodiment of the utility model third aspect, it is also proposed that a kind of air-conditioner, including：Any implementation as described above
The control device of the air-conditioner described in example.
Circuit is controlled by the voltage conversion, circuit switching can be carried out according to different AC-input voltages and reached simply
The purpose of circuit structure is quickly changed, to realize exporting identical DC voltage automatically according to different AC-input voltages.
In the above-described embodiments, the household electrical appliance include air-conditioner；Other household electrical appliance can certainly be included.
The technical solution of the utility model is described in detail above in association with accompanying drawing, can be according to different AC-input voltages
Carry out circuit switching and reach the purpose for quickly and easily changing circuit structure, to realize automatically according to different AC-input voltages
Output identical DC voltage, to overcome weak point of the prior art.
Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle
Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.
Claims (10)
1. a kind of voltage conversion controls circuit, it is characterised in that including：
Rectification module, for AC-input voltage to be converted into DC voltage；
Voltage detection module, for detecting the DC voltage exported through the rectification module rectification；
Control module, the pressure value for gathering the DC voltage that the voltage detection module is detected, and according to described straight
The pressure value that the voltage threshold scope residing for the pressure value of voltage determines the AC-input voltage is flowed, with according to the exchange input electricity
The pressure value of pressure generates corresponding control signal；
Voltage switching module, for according to the control signal switch operating state, to be formed and the AC-input voltage
The voltage conversion control circuit of pressure value matching.
2. voltage conversion according to claim 1 controls circuit, it is characterised in that the voltage switching module includes：Three
Pole pipe and relay；
Wherein, the base stage of the triode is connected to the output end of the control module, and the colelctor electrode of the triode is connected to
First pin of the relay, the control signal is sent to the relay through the triode, control it is described after
Second pin and the connection status of three-prong of electrical equipment.
3. voltage conversion according to claim 2 controls circuit, it is characterised in that
The control module determines that the exchange is defeated when the pressure value for judging the DC voltage is less than or equal to preset voltage value
Enter the pressure value of voltage for first voltage value, and when the pressure value for judging the DC voltage is more than the preset voltage value, really
The pressure value of the fixed AC-input voltage is second voltage value, wherein, the first voltage value is less than the second voltage value.
4. voltage conversion according to claim 3 controls circuit, it is characterised in that
The control module it is determined that the AC-input voltage pressure value be the first voltage value when, through the triode to
The relay sends the first control signal, to control second pin and three-prong closure connection.
5. voltage conversion according to claim 3 controls circuit, it is characterised in that
The control module it is determined that the AC-input voltage pressure value be the second voltage value when, through the triode to
The relay sends the second control signal, to control second pin and the three-prong to disconnect.
6. the voltage conversion according to any one of claim 2 to 5 controls circuit, it is characterised in that also include：First storage
Can electric capacity and the second storage capacitor；
Wherein, the positive pole of first storage capacitor is connected to second pin and second energy storage electricity of the relay
The negative pole of appearance, the negative pole of first storage capacitor is connected to the first port of the rectification module, and second energy storage
The positive pole of electric capacity is connected to the 4th port of the rectification module, and the negative pole of second storage capacitor is connected to the relay
Second pin；And
The second port of the rectification module is connected to the I/O ports that the voltage conversion controls circuit, the rectification mould
3rd port of block is connected to the 2nd I/O ports that the voltage conversion controls circuit.
7. voltage conversion according to any one of claim 1 to 5 controls circuit, it is characterised in that the voltage detecting
Module includes the first resistor and second resistance that are connected in series, and the control module is used in the first resistor and described
The pressure value of the DC voltage is gathered between second resistance.
8. voltage conversion according to claim 7 controls circuit, it is characterised in that also including in parallel with the second resistance
Voltage stabilizing module.
9. a kind of household electrical appliance, it is characterised in that including：Voltage conversion control electricity as any one of claim 1 to 8
Road.
10. household electrical appliance according to claim 9, it is characterised in that the household electrical appliance include air-conditioner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621297680.9U CN206226303U (en) | 2016-11-28 | 2016-11-28 | Voltage conversion controls circuit and household electrical appliance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621297680.9U CN206226303U (en) | 2016-11-28 | 2016-11-28 | Voltage conversion controls circuit and household electrical appliance |
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| Publication Number | Publication Date |
|---|---|
| CN206226303U true CN206226303U (en) | 2017-06-06 |
Family
ID=58787062
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621297680.9U Active CN206226303U (en) | 2016-11-28 | 2016-11-28 | Voltage conversion controls circuit and household electrical appliance |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106357128A (en) * | 2016-11-28 | 2017-01-25 | 广东美的制冷设备有限公司 | Voltage conversion control circuit and household appliance |
| CN113985107A (en) * | 2021-11-23 | 2022-01-28 | 珠海格力电器股份有限公司 | Voltage detection method and device and readable storage medium |
| CN115425735A (en) * | 2022-07-20 | 2022-12-02 | 宁波奥克斯电气股份有限公司 | Power supply conversion circuit and variable frequency air conditioner |
| WO2023280108A1 (en) * | 2021-07-08 | 2023-01-12 | 合肥华凌股份有限公司 | Voltage control circuit applicable to frequency inversion device, and frequency inversion device |
-
2016
- 2016-11-28 CN CN201621297680.9U patent/CN206226303U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106357128A (en) * | 2016-11-28 | 2017-01-25 | 广东美的制冷设备有限公司 | Voltage conversion control circuit and household appliance |
| WO2023280108A1 (en) * | 2021-07-08 | 2023-01-12 | 合肥华凌股份有限公司 | Voltage control circuit applicable to frequency inversion device, and frequency inversion device |
| CN113985107A (en) * | 2021-11-23 | 2022-01-28 | 珠海格力电器股份有限公司 | Voltage detection method and device and readable storage medium |
| CN115425735A (en) * | 2022-07-20 | 2022-12-02 | 宁波奥克斯电气股份有限公司 | Power supply conversion circuit and variable frequency air conditioner |
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