CN208608858U - Electric system and air-conditioning - Google Patents
Electric system and air-conditioning Download PDFInfo
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- CN208608858U CN208608858U CN201821512719.3U CN201821512719U CN208608858U CN 208608858 U CN208608858 U CN 208608858U CN 201821512719 U CN201821512719 U CN 201821512719U CN 208608858 U CN208608858 U CN 208608858U
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Abstract
This application involves a kind of electric system and air-conditionings.Electric system includes voltage detecting control device, regulator, Regulation Control switch and motor；Regulator is serially connected in the power supply line of the machine winding of motor, and connection voltage detecting control device, power supply line is the route that power supply end is connected to machine winding, and Regulation Control switch in parallel is at regulator both ends, and Regulation Control switch connects voltage detecting control device；Voltage detecting control device is used to detect the input voltage of regulator, and when input voltage is greater than or equal to preset reference value, control Regulation Control is closed the switch；When input voltage is less than preset reference value, control Regulation Control switch disconnects voltage detecting control device, and sends pressure regulation and instruct to regulator；Wherein, pressure regulation instruction is for controlling regulator for input voltage regulation to default pressure stabilizing value.Using the application, the power supply compatibility and functional reliability of electric system can be improved.
Description
Technical field
This application involves technical field of electrical equipment, more particularly to a kind of electric system and air-conditioning.
Background technique
The power supply interface of motor needs to access the voltage for meeting motor job requirement, to meet needed for normal work.However,
Traditional motor is generally only applicable to a kind of operating voltage, poor compatibility of powering, during actual use, being easy to appear mistake makes
The situation for causing machine winding current excessive with external power supply.
For example, the design of electrical motor of air-conditioning is external 380V (volt) power supply of needs by taking air-conditioning as an example, it is possible that by
Sell the country for being 220V to power supply.When using 220V power supply power supply, since the acting of air-conditioning rated cooling capacity is constant,
And supply voltage is low, then the corresponding electric current of equal-wattage becomes larger, and the electric current of machine winding increases, and machine winding is caused to be generated heat
Seriously, easily there is the failure that motor is burnt, air-conditioning can not work.
Utility model content
Based on this, it is necessary to which for motor power supply poor compatibility, the problem that causes functional reliability low, providing one kind can be with
Improve the electric system and air-conditioning of power supply compatibility and functional reliability.
A kind of electric system, including voltage detecting control device, regulator, Regulation Control switch and motor；The tune
Pressure device is serially connected in the power supply line of the machine winding of the motor, and connects the voltage detecting control device, the confession
Electric line is the route that power supply end is connected to the machine winding, and the Regulation Control switch in parallel is in the regulator
Both ends, and Regulation Control switch connects the voltage detecting control device；
The voltage detecting control device is used to detect the input voltage of the regulator, is greater than in the input voltage
Or it when being equal to preset reference value, controls the Regulation Control and closes the switch；The voltage detecting control device is in the input electricity
When pressure is less than the preset reference value, controls the Regulation Control switch and disconnect, and send pressure regulation and instruct to the regulator；
Wherein, the pressure regulation instruction is for controlling the regulator for the input voltage regulation to default pressure stabilizing value.
A kind of air-conditioning, including unit and above-mentioned electric system, the motor connect the unit.
Above-mentioned electric system concatenates regulator, in regulator both ends and joint debugging in the power supply line of machine winding
Control switch is pressed, and using the input voltage of voltage detecting control device detection regulator；Voltage detecting control device is defeated
When entering voltage more than or equal to preset reference value, control Regulation Control is closed the switch, so that regulator is shorted, power supply
The voltage output at end is to machine winding；When input voltage is less than preset reference value, control Regulation Control switch is disconnected and is sent
Pressure regulation is instructed to regulator, so that regulator will export after input voltage regulation to default pressure stabilizing value to machine winding.It is logical
It crosses and pressure regulation or not pressure regulation is controlled according to input voltage, to ensure under different input voltages, machine winding, which will not seriously generate heat, to be led
Machine burning is sent a telegraph to ruin, in this way, power supply end can access a variety of different voltages, electric system is powered good compatibility, so as to
Improve the reliability of electric system work.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of electric system in an embodiment；
Fig. 2 is the circuit diagram of electric system in an embodiment；
Fig. 3 is the partial circuit schematic diagram of air-conditioning in an embodiment.
Specific embodiment
It is with reference to the accompanying drawings and embodiments, right in order to which the objects, technical solutions and advantages of the application are more clearly understood
The application is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the application, not
For limiting the application.
In one embodiment, with reference to Fig. 1, a kind of electric system, including voltage detecting control device 110, tune are provided
Pressure device 130, Regulation Control switch 150 and motor.Regulator 130 is serially connected in the power supply line of the machine winding 160 of motor
In, and connect voltage detecting control device 110；Wherein, power supply line is the line that power supply end S is connected to machine winding 160
Road.Regulation Control switch 150 is connected in parallel on 130 both ends of regulator, and Regulation Control switch 150 connects voltage detecting control device
110。
Voltage detecting control device 110 is used to detect the input voltage of regulator 130.Specifically, regulator 130
Input side connects power supply end S, and the outlet side of regulator 130 connects machine winding 160, if the investment of regulator 130 makes
With, after the input voltage of input side being carried out pressure regulation, output to machine winding 160.Wherein, input voltage is regulator
The voltage of the 130 connection sides power supply end S.
Voltage detecting control device 110 is when input voltage is greater than or equal to preset reference value, control Regulation Control switch
150 closures.For voltage detecting control device 110 when input voltage is less than preset reference value, control Regulation Control switch 150 is disconnected
It opens, and sends pressure regulation and instruct to regulator 130.Wherein, pressure regulation instruction is for controlling regulator 130 for input voltage regulation
To default pressure stabilizing value.
In the identical situation of the power required for motor, the voltage of machine winding 160 is bigger, then machine winding 160
Electric current is smaller, calorific value is smaller.Wherein, preset reference value and default pressure stabilizing value can be specifically arranged according to actual needs；For example,
Preset reference value can the minimum voltage value according to corresponding to the calorific value allowed to bear of machine winding 160 be configured, preset
Pressure stabilizing value can be set to the voltage for making the calorific value of corresponding machine winding 160 be no more than calorific value allowed to bear
Value.
If input voltage is greater than or equal to preset reference value, indicate that input voltage will not cause machine winding 160 to be generated heat sternly
Weight；It controls Regulation Control switch 150 by voltage detecting control device 110 to be closed, since Regulation Control switch 150 is connected in parallel on tune
130 both ends of pressure device, then regulator 130 is shorted, the voltage output of power supply end S to machine winding 160.If input electricity
Pressure is less than preset reference value, indicates that input voltage is too small, may cause machine winding 160 and generates heat seriously；Pass through voltage detecting control
Device 110 processed controls the disconnection of Regulation Control switch 150 and sends pressure regulation and instructs to regulator 130, and regulator 130 is thrown at this time
Enter to use, the voltage of power supply end S passes through regulator 130, and regulator 130 is instructed in response to pressure regulation by input voltage tune
Section causes serious situation of generating heat to default pressure stabilizing value to avoid the voltage of output to machine winding 160.
Specifically, voltage detecting control device 110 can be by using well known technology by input voltage and preset reference
Value is compared.For example, voltage detecting control device 110 may include comparator, first input terminal input pair of comparator
Answer the electric signal of input voltage, the corresponding electric signal of second input terminal input preset reference value of comparator, comparator it is defeated
Outlet exports low level signal or high level signal to Regulation Control switch 150, low level signal and height electricity based on comparative result
Ordinary mail number is respectively used to control Regulation Control switch 150 and disconnects and be closed.
Specifically, can be previously according to power supply end S external voltage the case where and default pressure stabilizing value are adjusted required for determining
Whole voltage swing is designed with this and selects regulator 130.For example, if power supply end S external voltage include 220V and
Two kinds of 380V, preset reference value is less than 380V, then does not need pressure regulation in the external 380V of power supply end S；In power supply end S
When external 220V, determine that the numerical value for needing pressure regulation, regulator 130 may include that realization will according to 220V and default pressure stabilizing value
220V pressure regulation to default pressure stabilizing value transformer.
Above-mentioned electric system concatenates regulator 130, at 130 liang of regulator in the power supply line of machine winding 160
Regulation Control switch 150 in parallel is held, and detects the input voltage of regulator 130 using voltage detecting control device 110；Voltage
When input voltage is greater than or equal to preset reference value, control Regulation Control switch 150 is closed detection control apparatus 110, so that
Regulator 130 is shorted, the voltage output of power supply end S to machine winding 160；It is less than preset reference value in input voltage
When, control Regulation Control switch 150 disconnects and sends pressure regulation and instructs to regulator 130, so that regulator 130 will input electricity
Pressure exports after being adjusted to default pressure stabilizing value to machine winding 160.By controlling pressure regulation or not pressure regulation according to input voltage, to ensure
Under different input voltages, machine winding 160, which will not seriously generate heat, causes motor to burn, in this way, power supply end S can be accessed
A variety of different voltages, electric system power supply good compatibility, so that the reliability of electric system work can be improved.
Above-mentioned electric system can be applied to direct current generator, also can be applied to alternating current generator.Company in Fig. 1 between device
Wiring is the line for indicating to have connection relationship, is not used to limit the quantity of route.For example, if power supply end S access is
Alternating current can be by extremely then between power supply end S and regulator 130, between regulator 130 and machine winding 160
Few three-line connection.
In one embodiment, voltage detecting control device 110 includes that voltage transformer (not shown) and controller (are schemed not
Show), voltage transformer is connected between regulator 130 and power supply end S, and voltage transformer connects controller, control
Device connects regulator 130 and Regulation Control switch 150.
Voltage transformer is used for the input voltage of Induction Regulation device 130 and sends voltage signal to controller, controller
Compare preset reference value input voltage corresponding with voltage signal, when input voltage is greater than or equal to preset reference value, control
Regulation Control switch 150 is closed；When input voltage is less than preset reference value, control Regulation Control switch 150 is disconnected, and sends
Pressure regulation is instructed to regulator 130.Regulator is controlled by using voltage transformer induction input voltage, using controller
130 and Regulation Control switch 150, it is simple and practical in structure.
In one embodiment, above-mentioned electric system further includes series connection control switch, and motor is provided at least two series connection
Machine winding 160, series connection control switch is connected between concatenated machine winding 160, and connects voltage detecting control device
110.When input voltage is greater than or equal to preset reference value, also control series connection control switch closes voltage detecting control device 110
It closes, when input voltage is less than preset reference value, also control series connection control switch is disconnected.
Series connection control switch is connected between concatenated machine winding 160, for make concatenated two machine windings 160 it
Separated or connection.Specifically, control terminal connection voltage detecting control device 110, the series connection control of series connection control switch be can be
The input terminal of system switch is connected between concatenated machine winding 160, output end is grounded；Either for three-phase line, series connection
Control switch includes three sub switchs, three sub switchs using the connection of Y type: one end respectively connects the phase line in three-phase line
Road, the other end are connected with each other.It is appreciated that 160 both ends of machine winding can also be connected in parallel on using series connection control switch
Structure.
Voltage detecting control device 110 controls series connection control switch closure, then corresponds to concatenated two machine windings 160
In, far from regulator 130 machine winding 160 be cut off, do not access circuit.The control series connection of voltage detecting control device 110
Control switch disconnects, then corresponds to concatenated two machine windings 160 and access circuit.In this way, using multiple machine windings 160,
By the way that when input voltage is less than preset reference value, disconnection series connection control switch, multiple machine windings can share calorific value, keep away
Exempt from single motor winding 160 to generate heat seriously, further increases the reliability of electric system work.
In one embodiment, series connection control switch includes relay, the coil connection voltage detecting control dress of relay
110 are set, the switch of relay is connected between concatenated machine winding 160.
The energization or power-off of the coil of relay are controlled, by voltage detecting control device 110 to control opening for relay
The closing or opening of pass, thus make in concatenated machine winding 160 far from power supply end S machine winding 160 be cut off or
Circuit is accessed, is manipulated simple and convenient.It is appreciated that in other embodiments, series connection control switch can also be other kinds of
Electric-controlled switch, for example, it may be triode, field-effect tube etc..
Specifically, series connection control switch closing or opening can be controlled by controller；The coil of relay connects controller,
By the energization or power-off of the coil of controller control relay.
In one embodiment, pressure regulation instruction includes step-down instruction and boost instruction, presets pressure stabilizing value and is less than preset reference
Value.Regulator 130 includes boost module (not shown), voltage reduction module (not shown) and switching switch (not shown), is depressured mould
Block connects switching switch, other end connection machine winding 160, switching switch connection power supply end S with the equal one end of boost module
With voltage detecting control device 110.Specifically, the input terminal of voltage reduction module and boost module is all connected with switching switch, is depressured mould
Block connects machine winding 160 with the output end of boost module.
Voltage detecting control device 110 sends drop when input voltage is less than preset reference value and is greater than default pressure stabilizing value
Pressure instruction is to switching switch, when input voltage is less than default pressure stabilizing value, sends boost instruction to switching switch.Switching switch is used
In selective connection voltage reduction module or boost module.Wherein, step-down instruction for control switching switch connection power supply end S with
Voltage reduction module；That is, switching switch receives selective connection voltage reduction module after voltage reduction module, so that power supply end S and decompression mould
Block is connected.Boost instruction is for controlling switching switch connection power supply end S and boost module；That is, switching switch receives boosting
Selective connection boost module after instruction, so that power supply end S and boost module are connected.
When using multiple 160 concatenated modes of machine winding, winding voltage can be lower.It is less than default ginseng in input voltage
In the case where examining value, voltage detecting control device 110 controls Regulation Control switch 150 and series connection control switch disconnects, at this point, adjusting
Pressure device 130 comes into operation, by input voltage pressure regulation to default pressure stabilizing value, by accessing back concatenated machine winding 160
Road can share calorific value, and single motor winding 160 is avoided to generate heat serious and burn.Meanwhile by using boost module, drop
Die block and switching switch, it is corresponding in varied situations to send step-down instruction or boost instruction, so that exporting to machine winding 160
Voltage do not have larger fluctuation, stability is good.Specifically, voltage detecting control device 110 again may be by using known
Technology input voltage is compared with default pressure stabilizing value, such as comparator can be used.
Specifically, voltage detecting control device 110 controls pressure regulation control when input voltage is greater than or equal to preset reference value
Make the closure of switch 150, series connection control switch closure；At this point, do not need pressure regulation, regulator 130 is shorted, power supply end S
Voltage output to machine winding 160, and the machine winding 160 in concatenated machine winding 160 close to regulator 130 connects
Entry loop, remaining machine winding 160 are cut off.Voltage detecting control device 110 is when input voltage is less than preset reference value, control
Regulation Control switch 150 processed disconnects, series connection control switch disconnects.Further, the feelings of preset reference value are less than in input voltage
Under condition, if input voltage is greater than default pressure stabilizing value, step-down instruction is sent to regulator 130, regulator 130 will input electricity
Pressure drop is depressed into default pressure stabilizing value；When input voltage is less than default pressure stabilizing value, boost instruction is sent to regulator 130, pressure regulation
Input voltage is boosted to default pressure stabilizing value by device 130；In this way, may make output to the voltage stabilization of machine winding 160.
Specifically, the quantity of voltage reduction module and boost module can have multiple, different voltage reduction modules, different boosting moulds
Block respectively corresponds to different voltage amount of translation.Specifically, voltage detecting control device 110 can be according to input voltage and default steady
The difference of pressure value, control switching switch selective connection and voltage reduction module or boosting corresponding to the matched voltage amount of translation of difference
Module.
In one embodiment, Regulation Control switch 150 includes contactor, the coil connection voltage detecting control of contactor
Device 110, the switch in parallel of contactor is at 130 both ends of regulator.
By the energization or power-off of the coil of 110 control contactor of voltage detecting control device, carry out opening for control contactor
The closing or opening of pass manipulates simple and convenient so that regulator 130 be made to be short-circuited or access circuit.It is appreciated that at other
In embodiment, Regulation Control switch 150 can also be other kinds of electric-controlled switch, for example, it may be triode, field-effect tube
Deng.
Specifically, 150 closing or opening of Regulation Control switch can be controlled by controller；The coil of contactor connects control
Device, by the energization or power-off of the coil of controller control contactor.
In one embodiment, as shown in Fig. 2, above-mentioned electric system further includes motor driving plate 170, regulator 130
Power supply end S and motor driving plate 170 are connected, motor driving plate 170 connects machine winding 160.
Motor driving plate 170 works for driving motor.Power supply end S is connected by regulator 130 and motor drives
Movable plate 170, when regulator 130 is shorted, the voltage of power supply end S output reaches motor after motor driving plate 170
Winding 160；When regulator 130 comes into operation, the voltage that regulator 130 exports reaches electricity after motor driving plate 170
Machine winding 160.In this way, power to motor driving plate 170, the work of 170 driving motor of motor driving plate.
In one embodiment, with reference to Fig. 2, motor setting there are two machine winding, respectively machine winding a and motor around
Group b, the quantity of series connection control switch are one, and series connection control switch is connected between machine winding a and machine winding b.Into one
Step ground, two machine windings not identical, identical enameled wire of type using resistance value.
The calorific value of machine winding 160 be equal to winding voltage square divided by machine winding 160 resistance value.By using two
Machine winding 160 is covered, when input voltage is less than preset reference value, two sets of machine windings 160 is incorporated to and shares calorific value, it can be to prevent
Only generating heat excessively high causes motor to burn.It specifically, is U1 with input voltage, preset reference value Um1, default pressure stabilizing value are that U3 is
Example, illustrates that the course of work is as follows:
If U1 >=Um1, Regulation Control switch 150 is closed with cutting-off pressure-regulating device 130, is closed series connection control switch, motor
Machine winding a is covered using single, motor driving plate 170 is powered using U1；If U1 < Um1, Regulation Control switch 150 is disconnected to call
Regulator 130 makes the output voltage stabilization U3 of regulator 130, disconnects series connection control switch, and motor uses machine winding
A is used in series with machine winding b, and motor driving plate 170 is powered using U3.
Specifically, as shown in Fig. 2, series connection control switch is relay, there are three the switches of relay, and three of relay
Switch is connected using Y type: one end respectively connects the phase line in three-phase line, and the other end is connected with each other.
It is appreciated that in other embodiments, concatenated three or more machine windings can also be arranged in motor.It is corresponding
Ground, series connection control switch can be for one or multiple, when series connection control switch has multiple, the quantity of series connection control switch
The quantity that specifically can be equal to machine winding subtracts one.
In one embodiment, preset reference value 232V, presetting pressure stabilizing value is 170V.Because there are waves for the voltage of power grid
It is dynamic, motor allow using minimum voltage value be generally voltage value of the external power supply fluctuation at -25%, value in the present embodiment
232V.It is appreciated that in other embodiments, preset reference value and default pressure stabilizing value can also be correspondingly arranged as other numerical value.
In one embodiment, a kind of air-conditioning, including unit and electric system above-mentioned are provided, motor connects unit.
Wherein, unit includes compressor, evaporator, condenser, heat exchanger.Specifically, in voltage detecting control device 110
Including control can be air-conditioning master control borad, a single-chip microcontroller being also possible to except the master control borad of air-conditioning.
Above-mentioned air-conditioning, due to use above-mentioned electric system, similarly, electric system power good compatibility, work it is reliable
Property it is high, so that the reliability of air-conditioning work can be improved.
In one embodiment, with reference to Fig. 3, air-conditioning further includes voltage commutation module 220, and regulator 130 passes through voltage
Rectification module 220 connects power supply end S.That is, the voltage of power supply end S access inputs after voltage commutation module 220
To regulator 130.At this point, the input voltage of regulator 130 is the output voltage of voltage commutation module 220.By using
Voltage commutation module 220 can realize electric current and rectify, convenient for handling the voltage after rectification.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
The limitation to utility model patent range therefore cannot be interpreted as.It should be pointed out that for the ordinary skill people of this field
For member, without departing from the concept of this application, various modifications and improvements can be made, these belong to the application's
Protection scope.Therefore, the scope of protection shall be subject to the appended claims for the application patent.
Claims (9)
1. a kind of electric system, which is characterized in that including voltage detecting control device, regulator, Regulation Control switch and electricity
Machine；The regulator is serially connected in the power supply line of the machine winding of the motor, and connects the voltage detecting control dress
It sets, the power supply line is the route that power supply end is connected to the machine winding, and the Regulation Control switch in parallel is in institute
Regulator both ends are stated, and Regulation Control switch connects the voltage detecting control device；
The voltage detecting control device is used to detect the input voltage of the regulator, is greater than or waits in the input voltage
When preset reference value, controls the Regulation Control and close the switch；The voltage detecting control device is small in the input voltage
When the preset reference value, controls the Regulation Control switch and disconnect, and send pressure regulation and instruct to the regulator；Its
In, the pressure regulation instruction is for controlling the regulator for the input voltage regulation to default pressure stabilizing value.
2. electric system according to claim 1, which is characterized in that the voltage detecting control device includes mutual induction of voltage
Device and controller, the voltage transformer are connected between the regulator and the power supply end, and the voltage is mutual
Sensor connects the controller, and the controller connects the regulator and Regulation Control switch.
3. electric system according to claim 1, which is characterized in that it further include series connection control switch, the motor setting
There are at least two concatenated machine windings, the series connection control switch is connected between concatenated machine winding, and described in connection
Voltage detecting control device；
The voltage detecting control device also controls the series connection control when the input voltage is greater than or equal to preset reference value
System closes the switch, and when the input voltage is less than the preset reference value, also controls the series connection control switch and disconnects.
4. electric system according to claim 3, which is characterized in that the series connection control switch includes relay, described
The coil of relay connects the voltage detecting control device, the switch of the relay be connected to concatenated machine winding it
Between.
5. electric system according to claim 4, which is characterized in that the pressure regulation instruction includes that step-down instruction and boosting refer to
It enables, the default pressure stabilizing value is less than the preset reference value；The regulator includes that boost module, voltage reduction module and switching are opened
It closes, the voltage reduction module connects the switching switch with the equal one end of the boost module, the other end connects the machine winding, institute
It states switching switch and connects the power supply end and the voltage detecting control device；
The voltage detecting control device is less than the preset reference value in the input voltage and is greater than the default pressure stabilizing value
When, it sends the step-down instruction to the switching and switchs, when the input voltage is less than the default pressure stabilizing value, described in transmission
Boost instruction to the switching switchs；The step-down instruction is for controlling power supply end and institute described in the switching switch connection
Voltage reduction module is stated, the boost instruction is for controlling power supply end described in the switching switch connection and the boost module.
6. electric system according to claim 1, which is characterized in that the Regulation Control switch includes contactor, described
The coil of contactor connects the voltage detecting control device, and the switch in parallel of the contactor is at the regulator both ends.
7. electric system described in -6 any one according to claim 1, which is characterized in that it further include motor driving plate, it is described
Regulator connects the power supply end and the motor driving plate, and the motor driving plate connects the machine winding.
8. a kind of air-conditioning, which is characterized in that including electric system described in unit and claim 1-7 any one, the electricity
Machine connects the unit.
9. air-conditioning according to claim 8, which is characterized in that further include voltage commutation module, the regulator passes through
The voltage commutation module connects the power supply end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821512719.3U CN208608858U (en) | 2018-09-14 | 2018-09-14 | Electric system and air-conditioning |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821512719.3U CN208608858U (en) | 2018-09-14 | 2018-09-14 | Electric system and air-conditioning |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109104049A (en) * | 2018-09-14 | 2018-12-28 | 珠海格力电器股份有限公司 | Electric system and air-conditioning |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109104049A (en) * | 2018-09-14 | 2018-12-28 | 珠海格力电器股份有限公司 | Electric system and air-conditioning |
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