CN108445813B - A kind of power control circuit of automobile engine - Google Patents
A kind of power control circuit of automobile engine Download PDFInfo
- Publication number
- CN108445813B CN108445813B CN201810360629.5A CN201810360629A CN108445813B CN 108445813 B CN108445813 B CN 108445813B CN 201810360629 A CN201810360629 A CN 201810360629A CN 108445813 B CN108445813 B CN 108445813B
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- CN
- China
- Prior art keywords
- battery
- safety governor
- main switch
- generator
- engine
- Prior art date
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Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P11/00—Safety means for electric spark ignition, not otherwise provided for
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0084—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring voltage only
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/3644—Constructional arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/32—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks
- H01B7/328—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks comprising violation sensing means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention provides a kind of power control circuit of automobile engine, it include: motor power line, battery and battery main switch, the battery main switch is serially connected between the battery and engine, and the motor power line connects the engine and the battery main switch.The motor power line includes: wire core, inner insulating layer, conductive layer, external insulation layer and warning device；The inner insulating layer, conductive layer and external insulation layer are successively coated on outside the wire core from the inside to surface, the conductive layer leads to the first connector to the outside of the external insulation layer, the conductor wire core leads to the second connector to the outside of the external insulation layer, and the warning device is serially connected between first connector and second connector.In battery main switch closure, if the external insulation layer of the motor power line is damaged, the warning device alarm.The present invention can improve the electrical safety of automobile and using safe.
Description
Technical field
The present invention relates to engine power technical field more particularly to a kind of power control circuits of automobile engine.
Background technique
The electric wire of vehicle electronics is all closed threading, if carrying out effective protection without appropriate protection circuit,
It possibly can not be found in time when short circuit occurs, it will serious consequence is brought, for example, realizing battery for automobile engine power supply
Power supply line be under this kind of application, and the installation site of battery usually with respect to the position of automobile engine compared with
Far, cause the power supply line of connection battery and automobile starter longer, in order to reduce starting-up later time resistance, power supply line generally compared with
Slightly, this adds increased automobiles to rub between accumulator positive polar curve and car body because vibrating or being not fixed firmly in the process of moving
A possibility that, cause the insulating layer of power supply line to be easy to be worn and short circuit occurs, in case of short circuit, because without protecting circuit not
It can cut off the power, will result on fire at short circuit in time；And in vehicle travel process, the attention of driver is mainly in automobile
Front, power supply line are ensconced inside automobile chassis again, and when power supply line short-circuit fire initial stage, the intensity of a fire is smaller, and driver is difficult to send out in time
It is existing, it is late when the intensity of a fire becomes larger, in actual life when power supply line short-circuit fire, often result in what vehicle was burnt
Serious consequence.
Summary of the invention
The present invention provides a kind of power control circuit of automobile engine, and the power supply line for solving existing automobile engine does not have
The problem of protecting circuit, easily causing fire incident when short circuit occurs can improve the electrical safety of automobile and using safe.
In order to achieve the above object, the present invention the following technical schemes are provided:
A kind of power control circuit of automobile engine, comprising: safety governor, motor power line, battery and electricity
Source master switch, the battery main switch are serially connected between the battery and engine, described in the motor power line connection
Engine and the battery main switch；The motor power line include: wire core, inner insulating layer, conductive layer, external insulation layer and
Warning device；
The inner insulating layer, conductive layer and external insulation layer are successively coated on outside the wire core from the inside to surface, described interior exhausted
The inner surface of edge layer and the outer surface of the wire core fit, the interior table of the outer surface of the inner insulating layer and the conductive layer
Face fits, and the inner surface of the external insulation layer and the outer surface of the conductive layer fit；
The conductive layer leads to the first connector to the outside of the external insulation layer, and the wire core is to the external insulation
The outside of layer leads to the second connector, the warning device be serially connected in first connector and second connector it
Between；
In battery main switch closure, if the external insulation layer of the motor power line is damaged, the alarm
Device alarm；
The safety governor is connect with first connector, to control when the motor power line occurs damaged
Electrical connection of the disconnection battery of the battery main switch to engine, the safety governor are also patched with described second
Part connection disconnects the battery to engine to control the battery main switch when overcurrent occurs for the motor power line
Electrical connection.
Preferably, further includes: ignition switch and safety governor；
The ignition switch is serially connected in the anode of the access contact and the battery of the coil-end of the battery main switch
Between, the contact that picks out of the coil-end of the battery main switch is connected with the first output end of the safety governor, the electricity
The input terminal of source master switch is connected with the anode of the battery, the output end of the battery main switch and the power end of engine
It is connected, the first input end of the safety governor is connected with first connector；
In ignition switch closure, if the voltage of the first input end of the safety governor is less than first voltage
Threshold value, then the first output end of the safety governor exports low level, and the battery main switch closure makes the battery pair
Engine power supply, otherwise the first output end of the safety governor exports high level, makes between the battery and engine
Electrical connection disconnect.
Preferably, the second input terminal of the safety governor is connected with second connector；
If the voltage of the second input terminal of the safety governor is greater than second voltage threshold value, the safety governor
The first output end export high level, the battery main switch disconnects, so that the battery is disconnected the power supply to engine,
In, the second voltage threshold value is greater than the first voltage threshold value.
Preferably, further includes: generator；
The power end of the generator is connected with the output end of the battery main switch, is closed in the battery main switch
When, the battery is greater than the storage in the voltage of generator output to the generator powered, the generator operation
When cell voltage, the generator powers to engine, and charges to the battery.
Preferably, further includes: generator charging indicator light；
The generator charging indicator light is serially connected in the defeated of the charging instruction end of the generator and the battery main switch
Between outlet,
When the battery is to the generator powered, the generator charging indicator light is lighted；
When the generator charges to the battery, the generator charging indicator light extinguishes.
Preferably, the warning device is alarm lamp or buzzer.
Preferably, further includes: electrical quantity sensor；
The output end of the electrical quantity sensor is connected with the third input terminal of the safety governor, the electrical quantity sensor
For detecting the remaining capacity of the battery；
The SOC value of battery is calculated according to the remaining capacity that the electrical quantity sensor is sent for the safety governor,
When the SOC value is less than given threshold, alarm that the safety governor reports accumulator electric-quantity low.
Preferably, the safety governor includes: analog-to-digital conversion module, microprocessor and D/A converter module；
The microprocessor is connect with the analog-to-digital conversion module and the D/A converter module signal respectively by serial ports,
The output end of input terminal of the input terminal of the analog-to-digital conversion module as the safety governor, the D/A converter module is made
For the output end of the safety governor.
The present invention provides a kind of power control circuit of automobile engine, starts electromechanics described by setting warning device
The external insulation layer breakage alarm of source line, the power supply line for solving existing automobile engine do not protect circuit, when short circuit occurs
The problem of easily causing fire incident can improve the electrical safety of automobile and using safe.
Detailed description of the invention
In order to illustrate more clearly of specific embodiments of the present invention, attached drawing needed in the embodiment will be made below
Simply introduce.
Fig. 1: being a kind of power control circuit schematic diagram of automobile engine provided by the invention；
Fig. 2: being a kind of motor power line schematic diagram provided in an embodiment of the present invention；
Fig. 3: being a kind of A-A cross-sectional view for motor power line that embodiment provides.
Appended drawing reference
1 battery
2 ignition switches
3 battery main switches
4 generators
The power end of 41 generators
42 generator charging indication ends
5 motor power lines
51 first connectors
52 second connectors
53 wire cores
54 inner insulating layers
55 conductive layers
56 external insulation layers
M engine
L1 generator charging beacon lamp
Specific embodiment
The scheme of embodiment in order to enable those skilled in the art to better understand the present invention with reference to the accompanying drawing and is implemented
Mode is described in further detail the embodiment of the present invention.
Lack protection circuit for the power supply line of current automobile engine, cannot cut off the power in time in short-circuit fire or
Alarm, easily causes serious safety accident.The present invention provides a kind of power control circuit of automobile engine, passes through setting alarm dress
The external insulation layer breakage alarm in the motor power line is set, the power supply line for solving existing automobile engine does not protect electricity
Road, the problem of easily causing fire incident when short circuit occurs, can improve the electrical safety of automobile and using safe.
As shown in Figures 1 to 3, a kind of power control circuit of automobile engine includes: motor power line 5,1 and of battery
Battery main switch 3, the battery main switch 3 are serially connected between the battery 1 and engine M, and the motor power line 5 connects
Meet the engine M and the battery main switch 3；As shown in figure 3, the motor power line 5 include: wire core 53, it is interior absolutely
Edge layer 54, conductive layer 55, external insulation layer 56 and warning device.The inner insulating layer 54, conductive layer 55 and external insulation layer 56 are from inner
To being successively coated on outside the wire core 53 outside, the inner surface of the inner insulating layer 54 and the outer surface of the wire core 53 are affixed
It closes, the outer surface of the inner insulating layer 54 and the inner surface of the conductive layer 55 fit, the inner surface of the external insulation layer 56
It fits with the outer surface of the conductive layer 55.The conductive layer 55 leads to first to the outside of the external insulation layer 56 and patches
Part 51, the wire core 53 lead to the second connector 52 to the outside of the external insulation layer 56, and the warning device is serially connected in
Between first connector 51 and second connector 52.In the battery main switch 3 closure, if the engine
The external insulation layer 56 of power supply line 5 is damaged, then the warning device alarm.
Specifically, battery 1 is powered by motor power line 5 to engine M, wherein motor power line 5 and vehicle frame
Or the contact of metal class bracket, when external insulation layer 56 is damaged, conductive layer 55 is connected with vehicle frame or metal class bracket, is equivalent to conduction
Layer with vehicle is connected.At this point, wire core 53 is powered in battery main switch closure, make one end and the battery of warning device
Anode is connected, and the other end of warning device with vehicle is connected, and warning device is powered and alarms.In practical applications, the report
Alarm device can be alarm lamp or buzzer, and when energization, alarm lamp is lighted or buzzer call alarm.It can make power supply line
It alarms before breakage causes fire, improves the electrical safety of automobile.
As shown in Figure 1, the circuit further include: ignition switch 2 and safety governor.The ignition switch 2 is serially connected in described
Between access contact and the anode of the battery 1 of the coil-end of battery main switch 3, the coil-end of the battery main switch 3
The contact that picks out be connected with the first output end of the safety governor, the input terminal of the battery main switch 3 and the electric power storage
The anode in pond 1 is connected, and the output end of the battery main switch 3 is connected with the power end of engine M, and the of the safety governor
One input terminal is connected with first connector 51.In the ignition switch 2 closure, if the first of the safety governor
The voltage of input terminal is less than first voltage threshold value, then the first output end of the safety governor exports low level, the power supply
Master switch 3 is closed, and the battery 1 is made to power engine, otherwise the high electricity of the first output end output of the safety governor
It is flat, make to be electrically connected disconnection between the battery 1 and engine.
Specifically, when the external insulation layer of motor power line 56 is without breakage, if inner insulating layer 54 is also no broken
Damage, then be not electrically connected between conductive layer 55 and wire core 53, and the voltage of conductive layer 55 is less than first voltage threshold value at this time, can be with
It is intact to be inferred to the motor power line, can be used.Safety governor output end exports low level at this time, keeps power supply total
The coil-end of switch is electrically connected conducting, battery main switch closure.Judge to send out by the detection of the conductive layer voltage to power supply line
Whether motivation power supply line intact, without breakage, caused by being avoided that because of power supply line breakage the problem of short-circuit fire, can improve auto electric
Safety, improve occupant using safe.
Further, the second input terminal of the safety governor is connected with second connector 52.If the safety
The voltage of second input terminal of controller is greater than second voltage threshold value, then the high electricity of the first output end output of the safety governor
Flat, the battery main switch 3 disconnects, and so that the battery 1 is disconnected the power supply to engine, wherein the second voltage threshold value
Greater than the first voltage threshold value.
Specifically, the second connector 52 of motor power line is electrically connected with wire core, is exceeded in the voltage of wire core and is set
When fixed second voltage threshold value, illustrate power supply line overcurrent, there may be electronic equipment the problems such as short trouble occur, at this point, hair
Motivation power supply line is in unsafe working condition, and the first output end of safety governor exports high level, makes battery main switch
It disconnects.It is avoided that because power failure or current overload make power supply line fever cause fire, auto electric safety can be improved.
The circuit further include: generator 4；The output end phase of the power end 41 of the generator and the battery main switch 3
Even, in the battery main switch 3 closure, the battery 1 powers to the generator 4, and the generator 4 is run, in institute
When stating the voltage of the output of generator 4 greater than the battery voltage, the generator 4 powers to engine M, and to the electric power storage
It charges in pond 1.
Further, further includes: generator charging indicator light L1；The generator charging indicator light L1 is serially connected in the power generation
Between the charging instruction end 42 of machine and the output end of the battery main switch 3.It powers in the battery 1 to the generator 4
When, the generator charging indicator light L1 is lighted；When the generator 4 charges to the battery 1, the generator charging
Indicator light L1 extinguishes.
The circuit further include: electrical quantity sensor；The third of the output end of the electrical quantity sensor and the safety governor
Input terminal is connected, and the electrical quantity sensor is used to detect the remaining capacity of the battery.The safety governor is according to
The SOC value of battery is calculated in the remaining capacity that electrical quantity sensor is sent, described when the SOC value is less than given threshold
The alarm that safety governor reports accumulator electric-quantity low.
The safety governor includes: analog-to-digital conversion module, microprocessor and D/A converter module.The microprocessor is logical
It crosses serial ports to connect with the analog-to-digital conversion module and the D/A converter module signal respectively, the input of the analog-to-digital conversion module
Hold the input terminal as the safety governor, output of the output end of the D/A converter module as the safety governor
End.
In practical applications, safety governor further include: CAN receiving module makes to pacify for receiving or sending CAN message
Full controller and car body controller, engine controller carry out CAN bus connection, send out in car body controller or engine controller
When powering off message out, safety governor can control battery main switch disconnection, so that power supply circuit is safe, avoid the occurrence of danger.It needs
It is noted that single-chip microcontroller can be used in microprocessor.
As it can be seen that the present invention provides a kind of power control circuit of automobile engine, by setting warning device in the hair
The external insulation layer breakage alarm of motivation power supply line, the power supply line for solving existing automobile engine are not protected circuit, are being occurred
The problem of fire incident is easily caused when short-circuit can improve the electrical safety of automobile and using safe.
Structure, feature and effect of the invention, the above institute is described in detail according to diagrammatically shown embodiment above
Only presently preferred embodiments of the present invention is stated, but the present invention does not limit the scope of implementation as shown in the drawings, it is all according to structure of the invention
Think made change or equivalent example modified to equivalent change, when not going beyond the spirit of the description and the drawings,
It should all be within the scope of the present invention.
Claims (8)
1. a kind of power control circuit of automobile engine, comprising: safety governor, motor power line, battery and power supply
Master switch, the battery main switch are serially connected between the battery and engine, and the motor power line connects the hair
Motivation and the battery main switch；It is characterized in that, the motor power line include: wire core, inner insulating layer, conductive layer,
External insulation layer and warning device；
The inner insulating layer, conductive layer and external insulation layer are successively coated on outside the wire core from the inside to surface, the inner insulating layer
Inner surface and the outer surface of the wire core fit, the inner surface phase of the outer surface of the inner insulating layer and the conductive layer
Fitting, the inner surface of the external insulation layer and the outer surface of the conductive layer fit；
The conductive layer leads to the first connector to the outside of the external insulation layer, and the wire core is to the external insulation layer
Outside leads to the second connector, and the warning device is serially connected between first connector and second connector；
In battery main switch closure, if the external insulation layer of the motor power line is damaged, the warning device
Alarm；
The safety governor is connect with first connector, described in the control when the motor power line occurs damaged
Electrical connection of the disconnection battery of battery main switch to engine, the safety governor also connect with second connector
It connects, disconnects the battery to the electricity of engine to control the battery main switch when overcurrent occurs for the motor power line
Connection.
2. power control circuit according to claim 1, which is characterized in that further include: ignition switch；
The ignition switch is serially connected between access contact and the anode of the battery of the coil-end of the battery main switch,
The contact that picks out of the coil-end of the battery main switch is connected with the first output end of the safety governor, and the power supply is always opened
The input terminal of pass is connected with the anode of the battery, and the output end of the battery main switch is connected with the power end of engine,
The first input end of the safety governor is connected with first connector；
In ignition switch closure, if the voltage of the first input end of the safety governor is less than first voltage threshold
Value, then the first output end of the safety governor exports low level, and the battery main switch closure makes the battery to hair
Motivation power supply, otherwise the first output end of the safety governor exports high level, makes between the battery and engine
Electrical connection disconnects.
3. power control circuit according to claim 2, which is characterized in that the second input terminal of the safety governor with
Second connector is connected；
If the voltage of the second input terminal of the safety governor is greater than second voltage threshold value, the of the safety governor
One output end exports high level, and the battery main switch disconnects, and so that the battery is disconnected the power supply to engine, wherein institute
Second voltage threshold value is stated greater than the first voltage threshold value.
4. power control circuit according to claim 3, which is characterized in that further include: generator；
The power end of the generator is connected with the output end of the battery main switch, in battery main switch closure, institute
Battery is stated to the generator powered, the generator operation is greater than the battery in the voltage of generator output
When voltage, the generator powers to engine, and charges to the battery.
5. engine power control circuit according to claim 4, which is characterized in that further include: generator charging instruction
Lamp；
The generator charging indicator light is serially connected in the charging instruction end of the generator and the output end of the battery main switch
Between,
When the battery is to the generator powered, the generator charging indicator light is lighted；
When the generator charges to the battery, the generator charging indicator light extinguishes.
6. power control circuit according to claim 5, which is characterized in that the warning device is alarm lamp or bee
Ring device.
7. power control circuit according to claim 6, which is characterized in that further include: electrical quantity sensor；
The output end of the electrical quantity sensor is connected with the third input terminal of the safety governor, and the electrical quantity sensor is used for
Detect the remaining capacity of the battery；
The SOC value of battery is calculated according to the remaining capacity that the electrical quantity sensor is sent for the safety governor, in institute
When stating SOC value less than given threshold, alarm that the safety governor reports accumulator electric-quantity low.
8. power control circuit according to any one of claims 1 to 7, which is characterized in that the safety governor includes:
Analog-to-digital conversion module, microprocessor and D/A converter module；
The microprocessor is connect with the analog-to-digital conversion module and the D/A converter module signal respectively by serial ports, described
Input terminal of the input terminal of analog-to-digital conversion module as the safety governor, the output end of the D/A converter module is as institute
State the output end of safety governor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810360629.5A CN108445813B (en) | 2018-04-20 | 2018-04-20 | A kind of power control circuit of automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810360629.5A CN108445813B (en) | 2018-04-20 | 2018-04-20 | A kind of power control circuit of automobile engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108445813A CN108445813A (en) | 2018-08-24 |
| CN108445813B true CN108445813B (en) | 2019-03-12 |
Family
ID=63201144
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810360629.5A Active CN108445813B (en) | 2018-04-20 | 2018-04-20 | A kind of power control circuit of automobile engine |
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| Country | Link |
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| CN (1) | CN108445813B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203543708U (en) * | 2013-11-15 | 2014-04-16 | 安徽江淮汽车股份有限公司 | Intelligent electric quantity reminding system |
| CN103867369A (en) * | 2014-04-04 | 2014-06-18 | 安徽江淮汽车股份有限公司 | Vehicle starting protecting system and control method thereof |
| CN104007363A (en) * | 2014-06-05 | 2014-08-27 | 安徽江淮汽车股份有限公司 | Electric wire and short circuit alarm circuit |
| CN206297501U (en) * | 2016-12-16 | 2017-07-04 | 安徽江淮汽车集团股份有限公司 | A kind of hazardous materials transportation car emergency-off device |
-
2018
- 2018-04-20 CN CN201810360629.5A patent/CN108445813B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203543708U (en) * | 2013-11-15 | 2014-04-16 | 安徽江淮汽车股份有限公司 | Intelligent electric quantity reminding system |
| CN103867369A (en) * | 2014-04-04 | 2014-06-18 | 安徽江淮汽车股份有限公司 | Vehicle starting protecting system and control method thereof |
| CN104007363A (en) * | 2014-06-05 | 2014-08-27 | 安徽江淮汽车股份有限公司 | Electric wire and short circuit alarm circuit |
| CN206297501U (en) * | 2016-12-16 | 2017-07-04 | 安徽江淮汽车集团股份有限公司 | A kind of hazardous materials transportation car emergency-off device |
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| Publication number | Publication date |
|---|---|
| CN108445813A (en) | 2018-08-24 |
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Address after: 226600 No. 6 Xiyuan Avenue, Haian Town, Haian City, Nantong City, Jiangsu Province Patentee after: Jiangsu Enda General Equipment Group Co., Ltd Address before: No. 6 West Road Haian town Haian County Jiangsu city Nantong province 226600 Patentee before: JIANGSU ENDA GENERAL EQUIPMENT Co.,Ltd. |