CN208257498U - The automatic commutation system of standby electricity suitable for refrigerator car - Google Patents
The automatic commutation system of standby electricity suitable for refrigerator car Download PDFInfo
- Publication number
- CN208257498U CN208257498U CN201820780034.0U CN201820780034U CN208257498U CN 208257498 U CN208257498 U CN 208257498U CN 201820780034 U CN201820780034 U CN 201820780034U CN 208257498 U CN208257498 U CN 208257498U
- Authority
- CN
- China
- Prior art keywords
- phase
- contactor
- connect
- contact
- controller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Landscapes
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The utility model discloses a kind of automatic commutation systems of standby electricity suitable for refrigerator car, including single-chip microcontroller, controller, the first, second A.C. contactor and three-phase power socket；Single-chip microcontroller is connect with controller；R, S of three-phase power socket, T-phase contact pass through k11, k12, k13 and R, S, the connection of T-phase terminals respectively；R, S, T-phase contact pass through k23, k22, k21 respectively and connect with power supply T, S, R of M line end connection；R, S, T-phase contact are connect with R, S, T-phase voltage sample input terminal respectively；One end KM1 of first A.C. contactor is connect by k24 with OUT1, and the other end is connect with GND；One end KM2 of second A.C. contactor is connect by k14 with OUT2, and the KM2 other end is connect with GND.The utility model advantage is to guarantee the normal operation of refrigerating machine of refrigerated truck group three-phase alternating current compressor, because of failure caused by Problem of phase sequence when effectively having prevented the standby electricity work of three-phase alternating current compressor, the service life of three-phase alternating current compressor and the reliability of refrigeration unit are improved.
Description
Technical field
The utility model relates to refrigerator cars, more particularly, to the automatic commutation system of standby electricity for being suitable for refrigerator car.
Background technique
Refrigerator car is widely used in transport frozen or fresh-keeping and cold storage cargo, is usually used in biological agent, chemicals, freezing food
Product, dairy produce, vegetable and fruit and other items transport, to guarantee cargo in transit to the requirement of temperature.When refrigerator car over long distances,
When long-time Refrigerated Transport, midway guard station is stopped to the uninterrupted refrigeration cool-down of cargo when must satisfy parking, vehicle-mounted to guarantee
Requirement of the cargo to temperature.
When guard station is stopped, needs vehicle power supply used in refrigeration unit being changed to guard station three-phase mains and be powered.But
It is, when being powered using three-phase mains, because of parking field condition or operator's professional standards problem, during replacing power supply,
It may cause the maloperation different from guard station three-phase mains phase sequence of vehicle-mounted three-phase power supply phase sequence, this does not only result in three-phase for voltage contracting
Machine reversion may cause refrigeration unit and do not freeze if long-time is not found, cause reefer cargo rotten, or even damage refrigeration machine
Group compressor.
Summary of the invention
The utility model aim is to provide a kind of automatic commutation system of standby electricity suitable for refrigerator car.
To achieve the above object, the utility model takes following technical proposals:
Standby electricity automatic commutation system described in the utility model suitable for refrigerator car, including single-chip microcontroller, controller, the first exchange
Contactor, the second A.C. contactor and three-phase power socket；The single-chip microcomputer signal input terminal and the controller signals export
End connection, single-chip microcontroller output control terminal are connect with controller control signal；The R phase contact of the three-phase power socket, S are touched
Point, T-phase contact pass through normally opened contact k11, k12, k13 and three-phase alternating current compressor M of first A.C. contactor respectively
Power supply R connect line end, S connect line end, T-phase terminals connection；R phase contact, S phase contact, the T-phase contact point of three-phase power socket
Do not pass through the power supply T-phase wiring of normally opened contact k23, k22, k21 of second A.C. contactor and three-phase alternating current compressor M
End, S connect line end, R connect line end connection；The R phase contact of three-phase power socket, S phase contact, T-phase contact respectively with controller
R phase voltage sampling input terminal, S phase voltage sampling input terminal, T-phase voltage sample input terminal connection；First A.C. contactor
The one end driving coil KM1 passes through the auxiliary normally-closed contact k24 and the first output control terminal of controller OUT1 of the second A.C. contactor
Connection, the driving coil KM1 other end of the first A.C. contactor are connect with ground terminal GND；The driving line of second A.C. contactor
Circle one end KM2 is connect by the auxiliary normally-closed contact k14 of the first A.C. contactor with the second output control terminal of controller OUT2, the
The driving coil KM2 other end of two A.C. contactors is connect with ground terminal GND.
The utility model advantage is to guarantee the normal operation of refrigerating machine of refrigerated truck group three-phase alternating current compressor, effectively prevent
Because of failure caused by Problem of phase sequence when the standby electricity work of three-phase alternating current compressor, the service life of three-phase alternating current compressor is improved
With the reliability of refrigeration unit.
Detailed description of the invention
Fig. 1 is the circuit theory schematic diagram of the utility model.
Specific embodiment
It elaborates with reference to the accompanying drawing to the embodiment of the present invention, the present embodiment before being with technical solution of the present invention
It puts and is implemented, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to down
State embodiment.
As shown in Figure 1, the standby electricity automatic commutation system described in the utility model suitable for refrigerator car, including single-chip microcontroller 1, control
Device 2, the first A.C. contactor 3, the second A.C. contactor 4 and three-phase power socket 5；1 signal input part of single-chip microcontroller and control
2 signal output end of device connection processed, 1 output control terminal of single-chip microcontroller are connect with 2 control signal of controller；The R of three-phase power socket 5
Phase contact, S phase contact, T-phase contact pass through normally opened contact k11, k12, k13 and three-phase alternating current of the first A.C. contactor 3 respectively
The power supply R of compressor M connect line end, S connect line end, T-phase terminals connection；The R phase contact of three-phase power socket 5, S are touched
Point, T-phase contact pass through normally opened contact k23, k22, k21 of the second A.C. contactor 4 and the power supply of three-phase alternating current compressor M respectively
T-phase terminals, S connect line end, R connect line end connection；The R phase contact of three-phase power socket 5, S phase contact, T-phase contact difference
It is connect with the R phase voltage of controller 2 sampling input terminal, S phase voltage sampling input terminal, T-phase voltage sample input terminal；First exchange
One end driving coil KM1 of contactor 3 is exported by the auxiliary normally-closed contact k24 and controller 2 first of the second A.C. contactor 4
Control terminal OUT1 connection, the driving coil KM1 other end of the first A.C. contactor 3 are connect with ground terminal GND；Second ac contactor
One end driving coil KM2 of device 4 is controlled by auxiliary normally-closed contact k14 and controller 2 second output of the first A.C. contactor 3
OUT2 connection is held, the driving coil KM2 other end of the second A.C. contactor 4 is connect with ground terminal GND.
Utility model works principle is summarized as follows:
When refrigerating machine of refrigerated truck group is standby to be electrically activated, controller 2 first determines whether the phase sequence of refrigeration unit, when refrigeration unit phase
Simultaneously, it is defeated that power phase R, S, T that controller 2 will test are converted to digital signal for power phase R, S of sequence and default, T-phase
Out to single-chip microcontroller 1, single-chip microcontroller 1 issues instruction, the driving line of the first A.C. contactor 3 after receiving the power phase signal of default
Circle KM1 obtain it is electric, normally opened contact k11, k12, k13 of the first A.C. contactor 3 closure and auxiliary contact k14 is disconnected, three-phase alternating current
Compressor M starts work.
When refrigerating machine of refrigerated truck group is standby to be electrically activated, when controller 2 detects that the power phase of refrigeration unit is T, S, R,
Power phase T, S, R that controller 2 will test are converted to digital signal and export to single-chip microcontroller 1, and single-chip microcontroller 1 receives power supply phase
Instruction is issued after sequential signal, the driving coil KM2 of the second A.C. contactor 4 obtains electric, the normally opened contact of the second A.C. contactor 3
K21, k22, k33 are closed and auxiliary contact k24 is disconnected, and three-phase alternating current compressor M normally starts work.
Claims (1)
1. a kind of automatic commutation system of standby electricity suitable for refrigerator car, it is characterised in that: including single-chip microcontroller, controller, the first exchange
Contactor, the second A.C. contactor and three-phase power socket；The single-chip microcomputer signal input terminal and the controller signals export
End connection, single-chip microcontroller output control terminal are connect with controller control signal；The R phase contact of the three-phase power socket, S are touched
Point, T-phase contact pass through normally opened contact k11, k12, k13 and three-phase alternating current compressor M of first A.C. contactor respectively
Power supply R connect line end, S connect line end, T-phase terminals connection；R phase contact, S phase contact, the T-phase contact point of three-phase power socket
Do not pass through the power supply T-phase wiring of normally opened contact k23, k22, k21 of second A.C. contactor and three-phase alternating current compressor M
End, S connect line end, R connect line end connection；The R phase contact of three-phase power socket, S phase contact, T-phase contact respectively with controller
R phase voltage sampling input terminal, S phase voltage sampling input terminal, T-phase voltage sample input terminal connection；First A.C. contactor
The one end driving coil KM1 passes through the auxiliary normally-closed contact k24 and the first output control terminal of controller OUT1 of the second A.C. contactor
Connection, the driving coil KM1 other end of the first A.C. contactor are connect with ground terminal GND；The driving line of second A.C. contactor
Circle one end KM2 is connect by the auxiliary normally-closed contact k14 of the first A.C. contactor with the second output control terminal of controller OUT2, the
The driving coil KM2 other end of two A.C. contactors is connect with ground terminal GND.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820780034.0U CN208257498U (en) | 2018-05-24 | 2018-05-24 | The automatic commutation system of standby electricity suitable for refrigerator car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820780034.0U CN208257498U (en) | 2018-05-24 | 2018-05-24 | The automatic commutation system of standby electricity suitable for refrigerator car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208257498U true CN208257498U (en) | 2018-12-18 |
Family
ID=66481982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820780034.0U Active CN208257498U (en) | 2018-05-24 | 2018-05-24 | The automatic commutation system of standby electricity suitable for refrigerator car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208257498U (en) |
-
2018
- 2018-05-24 CN CN201820780034.0U patent/CN208257498U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8487458B2 (en) | Two speed control for mobile refrigeration generators | |
| CN205017091U (en) | A alternating current -direct current conversion control circuit and double current method EMUs for double current method EMUs | |
| CN105637749A (en) | DC power source device, motor drive device, air conditioner, and refrigerator | |
| CN110594953A (en) | Compressor driving device, compressor pressure protection method and air conditioner | |
| CN203964519U (en) | Refrigerator bimodulus switching device shifter | |
| CN208257498U (en) | The automatic commutation system of standby electricity suitable for refrigerator car | |
| CN105751851A (en) | Electrical control system of refrigerator car | |
| CN103094982A (en) | Power supplying system of refrigerated container of ship | |
| CN204787592U (en) | Refrigerating system operational failure detection device | |
| CN205344439U (en) | Refrigerator car electric control system | |
| CN109580211B (en) | Mechanical characteristic test system of high-voltage circuit breaker | |
| CN204832407U (en) | A high -voltage circuit detection device for electric motor car | |
| CN204165320U (en) | Refrigerator car independent cooling operating states of the units Microprocessor System for Real Time Record | |
| CN108202575A (en) | A kind of electronic refrigerator car electric power system and its control method, electronic refrigerator car | |
| CN112810401B (en) | Control method of cold machine control system for new energy automobile | |
| US11772508B2 (en) | Intelligent charging connector for transport refrigeration system | |
| CN106655473B (en) | Electrical control system and method suitable for air conditioner of refrigerator car | |
| CN208918674U (en) | A kind of fan controller for generating set heat dissipation of water tank | |
| CN216959330U (en) | Automatic switching device for road and commercial power of refrigerating unit | |
| CN204165321U (en) | Refrigerator car refrigerating carriage temperature, refrigeration unit running status register system | |
| CN109520203B (en) | Control system and control method for refrigeration air conditioner of electric refrigerator car | |
| CN207782446U (en) | Battery protection system and transport case | |
| CN202276190U (en) | Power supply system for refrigerated containers of ships | |
| US20210252949A1 (en) | Battery protection in a transport refrigeration system | |
| CN204383129U (en) | A kind of electronic van cooler civil power and the electric interlock circuit that freezes of car |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |