CN205632364U - Frequency conversion is equipped with electric system - Google Patents
Frequency conversion is equipped with electric system Download PDFInfo
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- CN205632364U CN205632364U CN201620532230.7U CN201620532230U CN205632364U CN 205632364 U CN205632364 U CN 205632364U CN 201620532230 U CN201620532230 U CN 201620532230U CN 205632364 U CN205632364 U CN 205632364U
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- power
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- power supply
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- power module
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Abstract
The utility model relates to a frequency conversion is equipped with electric system, including external alternate current power supply and on -vehicle storage battery power, DCDC power module, converter and controller, the input of converter is connected with external alternate current power supply, on -vehicle storage battery power respectively, and the DC output of converter is connected with DCDC power module's input, and DCDC power module's output is connected to the load, carries out communication connection between DCDC power module, converter and the controller. The utility model discloses utilizing the rectification of converter, input power detecting, logic control and CAN communication function and DCDC power module's CAN communication function, by converter direct control and switching power, leaving out a large amount of electric elements, both improved the reliability, the cost is reduced has simplified electrical control simultaneously again, is convenient for maintain.
Description
Technical field
This utility model relates to a kind of frequency conversion backup power supply system.
Background technology
Such as figure
1
Shown in: at present in cold preservation electricity truck air conditioning backup power supply system, special standby electric controller can be used to control the switching action of external ac power source and vehicle power, and use
AC/DC
The alternating current that the external world inputs is converted into unidirectional current by power supply, supplies each blower fan.In the process, system applies catalyst and relay to carry out Switching power in large quantities, and such design also exists the risk of Reliability comparotive difference, and cost is the highest, controls also complicated, and it is the most convenient to safeguard.
Summary of the invention
The purpose of this utility model is to provide a kind of frequency conversion backup power supply system, and it is mainly used in the backup power supply system of cold preservation electricity truck air conditioning.
For reaching above-mentioned purpose, the technical solution adopted in the utility model is:
A kind of frequency conversion backup power supply system, including:
External ac power source, vehicular power-bottle power supply: provide input power for load；
DC/DC
Power module: the direct current power source voltage being introduced into is converted into the supply voltage needed for load；
Controller,
Described system also includes:
Converter: detect input power, the alternating current power supply in input power is converted into DC source, control output DC source circuit,
The input of described converter is attached with external ac power source, vehicular power-bottle power supply respectively, the DC output end of described converter with
DC/DC
The input of power module is attached, described
DC/DC
The outfan of power module is connected to load, described
DC/DC
It is communicatively coupled between power module, converter and controller.
Preferably, the DC output end of described converter with
DC/DC
Between the input of power module by: be the first DC source circuit during vehicular power-bottle power supply for input power, be that the second DC source circuit during external ac power source is attached for input power.
It is further preferred that be provided with the output control relay controlling its path in the first described DC source circuit, described output control relay is attached with the control output end of converter.
It is further preferred that described output control relay is normally opened relay, when described converter detects that input power is vehicular power-bottle power supply, the output control relay adhesive described in control, the first described DC source circuit path.
Preferably, described
DC/DC
Power module, converter pass through with controller
CAN
Bus is communicatively coupled.
Preferably, described converter connects compressor.
Owing to technique scheme is used, this utility model compared with prior art has the advantage that
This utility model eliminates standby electric controller, make full use of the rectification function of converter, input power detection function, logic control function and
CAN
Communication function, and
DC/DC
Power module
CAN
Communication function, is directly controlled and Switching power by converter, omits a large amount of electrical equipment, has both improved reliability, reduces again cost, simplifies electrical control simultaneously, it is simple to safeguard.
Accompanying drawing explanation
Accompanying drawing
1
For the schematic diagram of backup power supply system in prior art；
Accompanying drawing
2
Schematic diagram for the present embodiment.
Detailed description of the invention
Below in conjunction with the accompanying drawings and this utility model is further described by embodiment:
Such as figure
2
Shown a kind of frequency conversion backup power supply system,
380V
External ac power source, vehicular power-bottle power supply: provide input power for fans load；
DC/DC
Power module: the direct current power source voltage being introduced into is converted into the supply voltage needed for fans load；
Converter: detect input power, the alternating current power supply in input power is converted into DC source, control output DC source circuit,
Controller.
The input of converter is attached with external ac power source, vehicular power-bottle power supply respectively, the DC output end of converter
DC
N+
、
DC N-
With
DC/DC
The input of power module
HDC+
、
HDC-
It is attached,
DC/DC
The outfan of power module
12V/24V+
、
12V/24V-
It is connected to fans load,
DC/DC
Pass through between power module, converter and controller
CAN
Bus is communicatively coupled.
In the present embodiment: the DC output end of converter
DC
N+
、
DC N-
With
DC/DC
The input of power module
HDC+
、
HDC-
Between by: be the first DC source circuit during vehicular power-bottle power supply for input power
HV540+
、
HV540-
, be the second DC source circuit during external ac power source for input power
HDC+
、
HDC-
It is attached；At the first DC source circuit
HV540+
、
HV540-
In be provided with control its path output control relay
DC-RELAY
, output control relay
DC-RELAY
Control output end with converter
ACSEN
Being attached, output control relay is normally opened relay.
The work process of the present embodiment under illustrating in detail below:
1
, when use vehicular power-bottle power supply when:
If inverter input is not detected by external ac power source, pass through
CAN
Bus send a message to controller and
DC/DC
Power module；
When converter detects without exchange, converter passes through control output end
ACSEN
Make output control relay
DC-Relay
Adhesive；
Converter passes through
CAN
Bus sends information,
DC/DC
The input of power module
HDC+
、
HDC-
From the DC output end of converter
DC
N-
,
DC P+
Introduce DC source, be converted into
12VDC
Or
24VDC
Out-put supply output fan motor；
When converter receives the information of startup compressor, just start compressor according to the requirement of information.
2
, when use external ac power source when:
Inverter input detects external ac power source, passes through
CAN
Bus send relevant information to controller and
DC/DC
Power module；
Converter passes through control output end
ACSEN
Make control relay
DC-RELAY
Remain off；
DC/DC
The input of power module
HDC+
、
HDC-
From the DC output end of converter
DC
N-
,
DC P+
Introduce DC source, be converted into
12VDC
Or
24VDC
Out-put supply output fan motor；
When converter receives the information of startup compressor, just start compressor according to the requirement of information.
The system of the present embodiment has the advantage that
1
, control simple, compatible: control device has only to pass through
CAN
Bus, allows Frequency Converter Control relay, nothing
CAN
During bus the same with conventional Cold Storage Control mechanism；
2
, cost lower: save two high-voltage relay ($
600
Left and right), two low-voltage relay ($
450
Left and right),
AC/DC1KW
Power supply ($
3500
Left and right), standby electric controller ($
1200
Left and right), $ altogether
5750
Left and right；
3
, reliability high: owing to eliminating relevant hardware devices, decreasing trouble point, overall reliability is higher；
4
, maintainable good: due to electric power connection line, catalyst, standby electric controller, the minimizing of power module etc., it is simple to Measuring error.
Above-described embodiment only for technology of the present utility model design and feature are described, its object is to allow person skilled in the art will appreciate that content of the present utility model and to implement according to this, can not limit protection domain of the present utility model with this.All equivalence changes made according to this utility model spirit or modification, all should contain within protection domain of the present utility model.
Claims (6)
1. a frequency conversion backup power supply system, including:
External ac power source, vehicular power-bottle power supply: provide input power for load；
DC/DC power module: the direct current power source voltage being introduced into is converted into the supply voltage needed for load；
Controller,
It is characterized in that: described system also includes:
Converter: detect input power, the alternating current power supply in input power is converted into DC source, control output DC source circuit；
The input of described converter is attached with external ac power source, vehicular power-bottle power supply respectively, the DC output end of described converter is attached with the input of DC/DC power module, the outfan of described DC/DC power module is connected to load, is communicatively coupled between described DC/DC power module, converter and controller.
A kind of frequency conversion backup power supply system the most according to claim 1, it is characterised in that: between DC output end and the input of DC/DC power module of described converter by: be the first DC source circuit during vehicular power-bottle power supply for input power, be that the second DC source circuit during external ac power source is attached for input power.
A kind of frequency conversion backup power supply system the most according to claim 2, it is characterised in that: being provided with the output control relay controlling its path in the first described DC source circuit, described output control relay is attached with the control output end of converter.
A kind of frequency conversion backup power supply system the most according to claim 3, it is characterized in that: described output control relay is normally opened relay, when described converter detects that input power is vehicular power-bottle power supply, output control relay adhesive described in control, the first described DC source circuit path.
A kind of frequency conversion backup power supply system the most according to claim 1, it is characterised in that: described DC/DC power module, converter are communicatively coupled by CAN with controller.
A kind of frequency conversion backup power supply system the most according to claim 1, it is characterised in that: described converter connects compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620532230.7U CN205632364U (en) | 2016-06-03 | 2016-06-03 | Frequency conversion is equipped with electric system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620532230.7U CN205632364U (en) | 2016-06-03 | 2016-06-03 | Frequency conversion is equipped with electric system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205632364U true CN205632364U (en) | 2016-10-12 |
Family
ID=57051564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620532230.7U Active CN205632364U (en) | 2016-06-03 | 2016-06-03 | Frequency conversion is equipped with electric system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205632364U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106839281A (en) * | 2017-01-04 | 2017-06-13 | 深圳市菲莱克电子有限公司 | A kind of control system of split-type air conditioner |
-
2016
- 2016-06-03 CN CN201620532230.7U patent/CN205632364U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106839281A (en) * | 2017-01-04 | 2017-06-13 | 深圳市菲莱克电子有限公司 | A kind of control system of split-type air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200330 Address after: 200336 unit 02, 10 / F, No. 99, Xianxia Road, Changning District, Shanghai Patentee after: Lengwang (Shanghai) Industrial Co., Ltd Address before: Wujiang Economic Development Zone, Suzhou City, Jiangsu province 215400 Pang Jin Road No. 2333 Patentee before: INGERSOLL RAND (CHINA) INDUSTRIAL EQUIPMENT MANUFACTURING Co.,Ltd. |
|
| TR01 | Transfer of patent right |