CN205986141U - Air conditioning unit's supply circuit - Google Patents
Air conditioning unit's supply circuit Download PDFInfo
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- CN205986141U CN205986141U CN201620776413.3U CN201620776413U CN205986141U CN 205986141 U CN205986141 U CN 205986141U CN 201620776413 U CN201620776413 U CN 201620776413U CN 205986141 U CN205986141 U CN 205986141U
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- photovoltaic module
- power supply
- outfan
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Abstract
The utility model discloses an air conditioning unit's supply circuit, include: inside and outside unit main control board, photovoltaic module for the output the high pressrue direct current, power supply changeover device, the input is connected with the photovoltaic module output, and the output is connected with inside and outside unit main control board for convert the high voltage dc of photovoltaic module output into low -voltage direct current, supply power in order to provide low -voltage direct current to inside and outside unit main control board. The utility model provides an utilize photovoltaic module to carry out air conditioner when power supply to exist and exchange electrical safety hidden danger and the lower problem of photovoltaic utilization rate of electrical energy, the utilization ratio of improved circuit security and photovoltaic electric energy among the prior art.
Description
Technical field
This utility model is related to air-conditioning technical field, in particular to a kind of air conditioning unit power supply circuits.
Background technology
The power supply power supply mode that single-phase unit adopts at present inputs for alternating current power supply, and specifically, Fig. 1 is that existing air-conditioning supplies
A kind of topological diagram of circuit, the High Level AC Voltage that AC network produces directly is supplied for air-conditioning internal machine part, outer machine part
Electricity, high-voltage alternating is powered to compressor section after rectification inverter circuit.High Level AC Voltage directly acts on air conditioner
, there is potential safety hazard in group various pieces.
There is also scheme unit powered using photovoltaic module at present, specifically, Fig. 2 is existing air-conditioning power supply circuits
A kind of middle topological diagram being powered using solar battery array, even if having adopted the unit of photovoltaic, its power supply is not yet
Adopt direct current supply completely, but separated using outer machine, interior machine, the high voltage direct current that solar battery array produces first passes through whole
Stream inverter circuit inversion, to AC network, high voltage direct current inversion is HVDC, then inside machine part and outer machine part
Power supply, equally exists exchange Electrical Safety problem, and, this circuit mode of building makes the electric energy of photovoltaic module generation in warp
Additionally consume during over commutation inversion, cause the utilization rate of electrical of photovoltaic low.
Carry out when air-conditioning is powered, there is exchange Electrical Safety hidden danger in correlation technique using photovoltaic module, and photovoltaic electric
The relatively low problem of energy utilization rate, not yet proposes to efficiently solve scheme at present.
Utility model content
This utility model provides a kind of air conditioning unit power supply circuits, at least to solve to utilize photovoltaic group in prior art
Part carries out there is exchange Electrical Safety hidden danger when air-conditioning is powered, and the relatively low problem of photovoltaic utilization rate of electrical.
For solving above-mentioned technical problem, this utility model provides a kind of air conditioning unit power supply circuits, including：Inside and outside
Machine unit master control borad；Photovoltaic module, for exporting high voltage direct current；Power supply change-over device, input and photovoltaic module outfan
Connect, outfan is connected with inside and outside machine unit master control borad, and the high voltage direct current for exporting photovoltaic module is converted to low-pressure direct
Stream electricity, to provide low-voltage DC to be powered to inside and outside machine unit master control borad.
Further, also include：Compressor load；Commutation inversion unit, including the first rectification inverter circuit, the first rectification
Inverter circuit input is connected with photovoltaic module outfan, and outfan is connected with compressor load, for exporting photovoltaic module
High voltage direct current inversion be the available three-phase alternating current of compressor load.
Further, also include：AC network, for exporting High Level AC Voltage；Commutation inversion unit includes the second rectification
Inverter circuit, the second rectification inverter circuit input is connected with AC network outfan, for the high pressure exporting AC network
It is the available three-phase alternating current of compressor load that alternating current carries out commutation inversion.
Further, commutation inversion unit also includes the 3rd rectification inverter circuit, the 3rd rectification inverter circuit input with
AC network outfan connects, and outfan is connected with power supply change-over device input, and the high pressure for exporting AC network is handed over
Stream electric rectification is high voltage direct current and exports to power supply change-over device.
Further, power supply change-over device includes：First power supply adaptor, input is connected with photovoltaic module outfan,
Outfan is connected with interior machine unit master control borad；Second source adapter, input is connected with photovoltaic module outfan, outfan with
Outer machine unit master control borad connects.
Further, photovoltaic module is connected with commutation inversion unit by high voltage dc bus.
Further, power supply change-over device is connected with inside and outside machine unit master control borad by low-voltage direct bus.
Further, photovoltaic module includes：Solar battery array.
Further, solar battery array is that multiple solar battery arrays are in parallel.
Further, also include：Maximal power tracing circuit, input is connected with photovoltaic module outfan, outfan with
It is connected with power supply change-over device, commutation inversion unit respectively, control photovoltaic for the Solar use information according to photovoltaic module
The output of assembly.
Power supply change-over device is set in this utility model, this power supply change-over device input is connected with photovoltaic module, defeated
Go out end to be connected with inside and outside machine unit master control borad, the high voltage direct current that photovoltaic module exports can be converted to low-voltage DC is sky
Adjust inside and outside machine unit master control borad to power, due to directly utilizing the electric energy of photovoltaic module, reduce the loss of the electric energy of photovoltaic module,
And, air-conditioning inside and outside machine unit master control borad is adopted with the power supply mode of low-voltage direct, reduces exchange Electrical Safety hidden danger.Therefore,
The air conditioning unit power supply circuits that the application provides efficiently solve and carry out air-conditioning using photovoltaic module in prior art and power
When there is exchange Electrical Safety hidden danger, and the relatively low problem of photovoltaic utilization rate of electrical, improve circuit safety and photovoltaic electric energy
Utilization rate.
Brief description
Fig. 1 is to be powered topological diagram using a kind of power supply of alternating current power supply input in prior art；
Fig. 2 is that a kind of power supply that in prior art, solar battery array is powered is powered topological diagram；
Fig. 3 is a kind of optional structural representation of the air conditioning unit power supply circuits of this utility model embodiment；And
Fig. 4 is a kind of optional circuit topology figure of the air conditioning unit power supply circuits of this utility model embodiment.
Specific embodiment
Here will in detail exemplary embodiment be illustrated, its example is illustrated in the accompanying drawings.Explained below is related to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with this utility model.On the contrary, they be only with such as
The example of the consistent apparatus and method of some aspects being described in detail in appended claims, of the present utility model.
Embodiment 1
The air conditioning unit power supply circuits below in conjunction with the accompanying drawings this utility model being provided illustrate.
Fig. 3 illustrates a kind of optional structured flowchart of the air conditioning unit power supply circuits of this utility model, as shown in figure 3, should
Air conditioning unit power supply circuits include：Interior machine unit master control borad 10, outer machine unit master control borad 20；Photovoltaic module 30, for exporting
High voltage direct current is it is preferable that photovoltaic module includes：Solar battery array.In an optional embodiment, solar-electricity
Pond array is that multiple solar battery arrays are in parallel；Power supply change-over device 40, input is connected with photovoltaic module 30 outfan, defeated
Go out end to be connected with interior machine unit master control borad 10, outer machine unit master control borad 20, the high voltage direct current for exporting photovoltaic module turns
It is changed to low-voltage DC, to provide low-voltage DC to be powered to inside and outside machine unit master control borad.
Additionally, further, foregoing circuit also includes：Compressor load 50；Commutation inversion unit 60, including the first rectification
Inverter circuit, the first rectification inverter circuit input is connected with photovoltaic module outfan, and outfan is connected with compressor load, uses
It is the available three-phase alternating current of compressor load in the high voltage direct current inversion exporting photovoltaic module.
By arranging power supply change-over device in the above-described embodiment, this power supply change-over device input is with photovoltaic module even
Connect, outfan is connected with inside and outside machine unit master control borad, the high voltage direct current that photovoltaic module exports can be converted to low-voltage DC
Power for air-conditioning inside and outside machine unit master control borad, due to directly utilizing the electric energy of photovoltaic module, reduce the damage of the electric energy of photovoltaic module
Consumption, and, air-conditioning inside and outside machine unit master control borad is adopted with the power supply mode of low-voltage direct, reduce exchange Electrical Safety hidden danger.Cause
This, the air conditioning unit power supply circuits that the application provides efficiently solve in prior art and carry out air-conditioning confession using photovoltaic module
There is exchange Electrical Safety hidden danger when electric, and the relatively low problem of photovoltaic utilization rate of electrical, improve circuit safety and photovoltaic electric energy
Utilization rate.
Further, as shown in figure 3, this circuit also includes：AC network 70, for exporting High Level AC Voltage；Rectification is inverse
Become unit 60 and also include the second rectification inverter circuit, the second rectification inverter circuit input is connected with AC network outfan, use
Carrying out commutation inversion in the High Level AC Voltage exporting AC network is the available three-phase alternating current of compressor load.By exchange
Electrical network and the second rectification inverter circuit, are realized compressor load and both can be powered using photovoltaic module, it is possible to use hand over
Stream electrical network is powered, and increases the multiformity of power supply.
Further, commutation inversion unit also includes the 3rd rectification inverter circuit, the 3rd rectification inverter circuit input with
AC network outfan connects, and outfan is connected with power supply change-over device input, and the high pressure for exporting AC network is handed over
Stream electric rectification is high voltage direct current and exports to power supply change-over device.By AC network and the 3rd rectification inverter circuit, realize
In the power supply process of air-conditioning inside and outside machine unit master control borad, both can be powered using photovoltaic module, it is possible to use alternating current
Net is powered, and increases the multiformity of power supply.
Further, power supply change-over device includes：First power supply adaptor, input is connected with photovoltaic module outfan,
Outfan is connected with interior machine unit master control borad；Second source adapter, input is connected with photovoltaic module outfan, outfan with
Outer machine unit master control borad connects.
Preferably, photovoltaic module is connected with commutation inversion unit by high voltage dc bus；Power supply change-over device passes through low
Pressure dc bus is connected with inside and outside machine unit master control borad.
Additionally, this circuit also includes：Maximal power tracing circuit, input is connected with photovoltaic module outfan, outfan
Be connected with power supply change-over device, commutation inversion unit respectively, for light is controlled according to the Solar use information of photovoltaic module
The output of volt assembly.
Specifically, Fig. 4 illustrates a kind of optional circuit topology figure of the air conditioning unit power supply circuits of the application.For sky
For adjusting unit, powered using photovoltaic and electrical network two ways in its outdoor machine of air-conditioner side, load comprises compressor of air conditioner, outer machine institute
The all systems comprising control all systems that load, interior machine are comprised to control load, and all load electricity consumptions all adopt direct current female
Line directly exports, and dc bus may come from grid side it is also possible to come from photovoltaic panel side, the power supply source of its power supply.
Wherein, high voltage dc bus power supply comes from photovoltaic panel and electrical network end, is coordinated using MPPT technique and PFC technology
State maximal power tracing circuit and enter line efficiency tracking and voltage stabilizing process, thus ensureing that bus fluctuates within the specific limits.
The compressor electricity consumption of load end is from high voltage dc bus power taking, and the system of outer machine, interior machine controls load to adopt completely
Use low-voltage DC supply mode.Low-voltage direct passes through power supply adaptor, and high voltage dc bus are converted to low-voltage direct bus, phase
The control port closed all is configured to low pressure mode, and corresponding load also must be that the load of low-pressure direct flow pattern is just permissible.
Can be drawn by above description, the design is compared with conventional topologies mainly 3 points of innovations：
First point：The outer machine of interior machine no longer can rely on merely electrical network mode, more using photovoltaic panel energy as power supply
Energy-conservation；
Second point：The corresponding Switching Power Supply of unit development, as intermediate conversion links, provides low for internal-external machine master control borad
Pressure DC source, thus ensureing that customer electricity is low-tension supply, safe and reliable；
Thirdly：All using direct current supply, the load of use is also DC load to inside and outside machine, DC load with respect to
For conventional AC load, in hgher efficiency, performance is more superior.
It should be noted that term " first " in the description and claims of this application and above-mentioned accompanying drawing, "
Two " it is etc. for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that such use
Data can exchange in the appropriate case, so that presently filed embodiment described herein can be with except illustrating here
Or the order enforcement beyond those of description.
Those skilled in the art, after considering description and putting into practice utility model disclosed herein, will readily occur to this practicality
New other embodiments.The application is intended to any modification of the present utility model, purposes or adaptations, these
Modification, purposes or adaptations are followed general principle of the present utility model and are included the non-utility model of this utility model
Common knowledge in the art or conventional techniques.Description and embodiments are considered only as exemplary, and this practicality is new
The true scope of type and spirit are pointed out by claim below.
It should be appreciated that this utility model is not limited to be described above and accurate knot illustrated in the accompanying drawings
Structure, and various modifications and changes can carried out without departing from the scope.Scope of the present utility model only will by appended right
Ask to limit.
Claims (10)
1. a kind of air conditioning unit power supply circuits are it is characterised in that include：
Inside and outside machine unit master control borad；
Photovoltaic module, for exporting high voltage direct current；
Power supply change-over device, input is connected with described photovoltaic module outfan, outfan and described inside and outside machine unit master control borad
Connect, the high voltage direct current for exporting described photovoltaic module is converted to low-voltage DC, with to described inside and outside machine unit master
Control plate provides described low-voltage DC to be powered.
2. circuit according to claim 1 is it is characterised in that also include：
Compressor load；
Commutation inversion unit, including the first rectification inverter circuit, described first rectification inverter circuit input and described photovoltaic group
Part outfan connects, and outfan is connected with described compressor load, and the high voltage direct current for exporting described photovoltaic module is inverse
It is changed into the available three-phase alternating current of described compressor load.
3. circuit according to claim 2 is it is characterised in that also include：
AC network, for exporting High Level AC Voltage；
Described commutation inversion unit also includes the second rectification inverter circuit, described second rectification inverter circuit input and described friendship
Stream electrical network outfan connects, and the High Level AC Voltage for exporting described AC network carries out commutation inversion and bears for described compressor
Carry available three-phase alternating current.
4. circuit according to claim 3 it is characterised in that
Described commutation inversion unit also includes the 3rd rectification inverter circuit, described 3rd rectification inverter circuit input and described friendship
Stream electrical network outfan connects, and outfan is connected with described power supply change-over device input, for export described AC network
High-voltage alternating electric rectification is high voltage direct current and exports to described power supply change-over device.
5. circuit according to claim 1 is it is characterised in that described power supply change-over device includes：
First power supply adaptor, input is connected with described photovoltaic module outfan, and outfan is connected with interior machine unit master control borad；
Second source adapter, input is connected with described photovoltaic module outfan, and outfan is connected with outer machine unit master control borad.
6. circuit according to claim 2 it is characterised in that
Described photovoltaic module is connected with described commutation inversion unit by high voltage dc bus.
7. circuit according to claim 1 is it is characterised in that described power supply change-over device passes through low-voltage direct bus and institute
State inside and outside machine unit master control borad to connect.
8. circuit according to claim 1 is it is characterised in that described photovoltaic module includes：Solar battery array.
9. circuit according to claim 8 is it is characterised in that described solar battery array is multiple solar arrays
Row are in parallel.
10. circuit according to claim 2 is it is characterised in that also include：
Maximal power tracing circuit, input is connected with described photovoltaic module outfan, and outfan is turned with described power supply with respectively
Changing device, described commutation inversion unit connect, and control described photovoltaic module for the Solar use information according to photovoltaic module
Output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620776413.3U CN205986141U (en) | 2016-07-21 | 2016-07-21 | Air conditioning unit's supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620776413.3U CN205986141U (en) | 2016-07-21 | 2016-07-21 | Air conditioning unit's supply circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205986141U true CN205986141U (en) | 2017-02-22 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620776413.3U Active CN205986141U (en) | 2016-07-21 | 2016-07-21 | Air conditioning unit's supply circuit |
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| CN (1) | CN205986141U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020077787A1 (en) * | 2018-10-17 | 2020-04-23 | 珠海格力电器股份有限公司 | Air-conditioning device, and electric energy processing method for air-conditioning device |
-
2016
- 2016-07-21 CN CN201620776413.3U patent/CN205986141U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020077787A1 (en) * | 2018-10-17 | 2020-04-23 | 珠海格力电器股份有限公司 | Air-conditioning device, and electric energy processing method for air-conditioning device |
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