CN103999181B - For disconnecting the pyrotechnics separating element of the high-voltage path in motor vehicles - Google Patents
For disconnecting the pyrotechnics separating element of the high-voltage path in motor vehicles Download PDFInfo
- Publication number
- CN103999181B CN103999181B CN201280061172.9A CN201280061172A CN103999181B CN 103999181 B CN103999181 B CN 103999181B CN 201280061172 A CN201280061172 A CN 201280061172A CN 103999181 B CN103999181 B CN 103999181B
- Authority
- CN
- China
- Prior art keywords
- pyrotechnics
- separating element
- motor vehicles
- voltage path
- cavity
- 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
- 239000004020 conductor Substances 0.000 claims abstract description 18
- 238000004880 explosion Methods 0.000 claims abstract description 16
- 230000003116 impacting effect Effects 0.000 claims abstract description 15
- 239000003380 propellant Substances 0.000 claims abstract description 15
- 238000009413 insulation Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- VOPWNXZWBYDODV-UHFFFAOYSA-N Chlorodifluoromethane Chemical compound FC(F)Cl VOPWNXZWBYDODV-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H39/00—Switching devices actuated by an explosion produced within the device and initiated by an electric current
- H01H39/006—Opening by severing a conductor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0007—Measures or means for preventing or attenuating collisions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/04—Cutting off the power supply under fault conditions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H39/00—Switching devices actuated by an explosion produced within the device and initiated by an electric current
- H01H2039/008—Switching devices actuated by an explosion produced within the device and initiated by an electric current using the switch for a battery cutoff
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
The present invention relates to the pyrotechnics separating element (12) of a kind of high-voltage path for disconnecting in motor vehicles.This pyrotechnics separating element (12) is arranged in the shell of closing at the assigned position of high-voltage path, the shell of this closing has cavity, this cavity is divided into explosion chamber (32) and the extended cavity (18) including pyrotechnics propellant (22) by the impacting body (20) being fixedly provided in conductor segment (24), and wherein extended cavity (18) is designed for after pyrotechnics propellant (22) is lighted a fire accommodating at least some of of impacting body (20).
Description
Technical field
The pyrotechnics that the present invention relates to a kind of high-voltage path for disconnecting in motor vehicles separates
Unit, it by accumulator-especially by lithium-ion electric core form-with motor vehicles, particularly
The drive system of electric motor vehicle or motor vehicle driven by mixed power connects.
Background technology
The motor vehicles externally to the above-mentioned type act on suddenly cause damage in the case of,
Such as from motor-driven in static or motion of the collision of particularly motor vehicles or collision
On vehicle or collision on other object, in motor vehicles for motor vehicle occupant starting
The technical measures of rescue life, such as, trigger air bag, belt pretensioner, and turning to
Post and pedal sink to the space putting foot or remove away from vehicle drive people.These peaces
Full technology also in the future will exist in the motor vehicle and be completed, thus in operation
For the automotive occupant of accident with for having an accident in the case of electric motor vehicle and motor vehicle driven by mixed power
Vehicle add the rescue power-assisted rescued, i.e. present in this vehicle, be positioned at bag especially
The high-voltage path between accumulator and drive system containing lithium-ion electric core is necessary after accident
Power-off immediately, because being otherwise only capable of carrying out rescuing/rescuing under conditions of life-threatening at difficult
Help.
Know that one has external trigger and self-triggering pyrotechnics peace according to DE101 39 360C2
Full device.This device has the security function for situations below, be not the most according to accident,
And such as separate monitored conductor due to the short circuit in bunch of cables.Additionally segmentation procedures leads to
Cross and select the mixture of pyrotechnics to control.
DE44 13 847B4 illustrates a kind of safety device for motor vehicles, is used for
By electric power energy and vehicle Circuit Separation under emergency conditions.This safety device includes can be by accident
The disconnection device of sensor activation, it does not produce voltage drop when motor vehicles are properly functioning.
This disconnection device is only just carried out electric power energy and motor vehicles when being determined be activated by accident
Circuit Separation.For this purpose it is proposed, this disconnection device has the partition member that can apply to drive energy,
The Ampereconductors belonging to circuit of motor vehicle can be flowed with turn-off current by this partition member
Mode separated.
Summary of the invention
The present invention goes out from the pyrotechnics separating element being used for disconnecting the high-voltage path motor vehicles
Sending out, wherein this separating element is arranged in the conductor segment of high-voltage path as the shell closed,
This shell comprises pyrotechnics propellant, and wherein this shell has cavity, and this cavity is by leading at this
The impacting body being fixedly installed in body section is divided into explosion chamber and the extension comprising pyrotechnics propellant
Chamber, wherein extended cavity is designed for accommodating at least some of of impacting body after firing.
Have and include the thus real of two shells being in the effectively cavity in point chamber of connection each other
Existing compact embodiment allows, in the narrowest space carries out conductor and motor vehicles
The non-hazardous separation of high voltage network so that will not be by impaired battery or by damaged
Cable trigger other fire hazard and/or short circuit.
Explosion chamber and extended cavity the two point chamber are designed to, and they can bear blast pressure also
Therefore not in causing other infringement in the external environment condition of separating element.Thus, pyrotechnics
The destructive power of the igniting being triggered of propellant falls targetedly and is being positioned at leading of explosion chamber
In body section and fall on the impacting body being arranged in this conductor segment.
In a kind of design of the present invention, pyrotechnics propellant is around high-voltage path cylindrical shape
Ground is arranged.Thus the Explosive Energy quantitatively set of pyrotechnics propellant is generally directed to high-voltage path
The surface being covered with of conductor segment, it is therefore an objective to high-voltage path is disconnected, wherein at cigarette
Blast wave the leading with impaired at least partially impacting body of diffusion during fire propellant fire
The part of body section is transported in extended cavity.
The shell of the closing of separating element is preferably surrounded by the material of electric insulation.Thus when such as
There is change due to the vibration in the driver behavior of motor vehicles in the position of high-voltage path
Time, prevent separating element and the mechanical of surrounding and electric contacting.
Additionally, separating element can be designed to it has the igniting unit that can be externally controlled.
The signal that it is possible to the collision recognition by existing in the motor vehicle controls separating element
Triggering.
Another design of this external present invention specifies, for by explosion chamber and extension
The impacting body that chamber separates abuts on the flange between explosion chamber and extended cavity.This patch
By explosion chamber is sealed, until the possible igniting of the pyrotechnics propellant of explosion chamber, thus can
Enough causing the intense explosion power rationed under ignition conditions of pyrotechnics propellant, it be enough to break
Open the conductor segment of the high-voltage path surrounded by pyrotechnics propellant and finally the damage of conductor segment
Bad part and the extended cavity being transported at least partially be positioned at below of impacting body.
Explosion chamber and extended cavity can be revolved in the way of favourable for the shell of manufacture separating element
Turning and realize symmetrically, wherein they are the volume of at least 1 to 2 with different from each other, ratio
Exist.Be achieved in, blast wave from explosion chamber by being diffused into quilt bigger extended cavity
Buffer and retain enough places to accommodate fragment and the shock of the conductor segment of high-voltage path
Body at least some of.
Separating element directly constructs in order to disconnect conductor segment due to its small being sized to
A pole safe high voltage plug in or there is its of bunch of cables of high-voltage path
Its position is to disconnect conductor segment.These options also depend on the structure feelings limited by structure space
Condition.
Thering is provided the application in the motor vehicle of a kind of separating element according to the present invention, this is motor-driven
Vehicle has a collision recognition, and separating element have can be by the sensing machine for collision recognition
The igniting unit that the signal of structure controls.This structural association improves for having logical
Wanting with security-related of the motor vehicles of the power-actuated drive system in too high voltages path
Ask.
Additionally, the present invention provides the high electricity in a kind of voltage field having for disconnecting accumulator
The pressure motor vehicles of pyrotechnics separating element in path, particularly electric motor vehicle or mixing
Power car, this accumulator by multiple, form specifically for lithium-ion electric core.
Accompanying drawing explanation
Below by the separating element being arranged in high-voltage path, embodiment is illustrated.
In accompanying drawing:
Fig. 1 shows the separating element being integrated in safe high voltage plug.
Detailed description of the invention
Fig. 1 shows how separating element 12 is integrated in safe high voltage plug 10.?
In follow-up conductor segment 24, the shell with separating element 12 it is provided with after pole 28.Separate
Unit 12 has cavity, and this cavity includes two point chambeies varied in size: less explosion chamber
32 and bigger extended cavity 18, both symmetrically construct here.
It is placed with pyrotechnics propellant 22 around conductor segment 24 cylindrical shape in explosion chamber 32,
It is limited by the impacting body 20,26 of circular structure in both sides, and wherein impacting body 20 is in extension
Can construct with being blown on the direction in chamber 18.
Impacting body 20 is being positioned at explosion chamber 32 and extended cavity 18 by its bigger diametric seal
Between flange 34 on so that first produce for disconnecting the Explosive Energy of conductor segment 24, and
And almost can receive impacting body 20 and a part for conductor segment 24 in extended cavity 18 simultaneously.
The shell of separating element 12 is constituted with metal material especially, is separating list the most from the outside
On the shell of unit 12, electrically insulating material 14 is set.
According to a kind of modification, pyrotechnics propellant 22 almost simultaneously with arrange in the motor vehicle
Air bag is lighted a fire by the igniting unit being effectively connected with it by electric pulse.In this case
This igniting can complete in less than 20ms.
Separating element 12 is not limited to its location in safe high voltage plug 10, but it
Its of the high-voltage path can also being arranged in electric motor vehicle or motor vehicle driven by mixed power
Its position.
Claims (7)
1. for disconnecting the pyrotechnics separating element (12) of the high-voltage path in motor vehicles,
Wherein this pyrotechnics separating element (12) is arranged on leading of high-voltage path as the shell closed
In body section (24), this shell comprises pyrotechnics propellant (22), it is characterised in that this is outer
Shell has cavity, and this cavity is by the impacting body (20) being fixedly provided in conductor segment (24)
Along described conductor segment (24) axially-successive be divided into and comprise described pyrotechnics propellant (22)
Explosion chamber (32) and extended cavity (18), wherein said extended cavity (18) can be in institute
At least some of of described impacting body (20) is accommodated after stating pyrotechnics propellant (22) igniting,
Wherein, described pyrotechnics propellant (22) is around the conductor segment (24) of described high-voltage path
Cylindrical shape ground is arranged, and wherein, described impacting body (20) abuts in and is positioned at explosion chamber (32)
And on the flange (34) between extended cavity (18).
Pyrotechnics separating element (12) the most according to claim 1, wherein, described envelope
The shell closed is surrounded by the material (14) of electric insulation.
3. according to the pyrotechnics separating element (12) one of the claims Suo Shu, wherein,
Described pyrotechnics separating element (12) has the igniting unit that can be externally controlled.
Pyrotechnics separating element (12) the most according to claim 1 is wherein, described quick-fried
Fried chamber (32) and extended cavity (18) symmetrically with different from each other, ratio at least 1
Volume than 2 is arranged.
5. motor vehicles, have according to one of claim 1 to 4 Suo Shu for disconnecting height
The pyrotechnics separating element (12) of voltage path.
Motor vehicles the most according to claim 5, wherein, described separating element (12)
In being arranged on safe high voltage plug (10) or in the high-voltage path of bunch of cables.
7. according to the motor vehicles described in claim 5 or 6, wherein, these motor vehicles tool
Having collision recognition, described separating element (12) to have can be by for this collision recognition
The igniting unit that the signal of sensing mechanism controls.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011088347A DE102011088347A1 (en) | 2011-12-13 | 2011-12-13 | Pyrotechnic separation unit for interrupting a high-voltage path in a motor vehicle |
| DE102011088347.9 | 2011-12-13 | ||
| PCT/EP2012/072131 WO2013087305A1 (en) | 2011-12-13 | 2012-11-08 | Pyrotechnic disconnecting unit for interrupting a high-voltage path in a motor vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103999181A CN103999181A (en) | 2014-08-20 |
| CN103999181B true CN103999181B (en) | 2016-12-07 |
Family
ID=47178003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280061172.9A Active CN103999181B (en) | 2011-12-13 | 2012-11-08 | For disconnecting the pyrotechnics separating element of the high-voltage path in motor vehicles |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN103999181B (en) |
| DE (1) | DE102011088347A1 (en) |
| WO (1) | WO2013087305A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014011767B3 (en) * | 2014-08-06 | 2016-02-04 | Kurt-Helmut Hackbarth | Encapsulated pyrotechnic separator |
| CN104505313B (en) * | 2014-12-02 | 2017-03-29 | 国家电网公司 | It is provided with the safety device for high-voltage power equipment of shell fragment |
| DE102021005104A1 (en) | 2021-10-12 | 2021-11-25 | Daimler Ag | Safety system for an at least partially electrically operated motor vehicle, as well as a method for operating a safety system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1168112C (en) * | 1998-04-19 | 2004-09-22 | Trw车辆电气与零件有限两合公司 | Device for isolating electric circuit, especially for high current intensities |
| CN101937795A (en) * | 2009-06-29 | 2011-01-05 | 丰田合成株式会社 | The circuit-breaker that is used for vehicle |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR958446A (en) * | 1950-03-10 | |||
| DE4211079A1 (en) * | 1992-04-03 | 1993-10-07 | Dynamit Nobel Ag | Method for securing circuits, in particular circuits carrying high currents, against overcurrents and electrical fuse element, in particular high current fuse element |
| DE4413847B4 (en) | 1993-05-03 | 2004-09-09 | Volkswagen Ag | Device for motor vehicles for the accident-related disconnection of an electrical energy source from an electrical system |
| DE19819662A1 (en) * | 1997-05-02 | 1998-11-12 | Ellenberger & Poensgen | Power supply interrupting switch for motor vehicle |
| JP2000123696A (en) * | 1998-10-15 | 2000-04-28 | Nichiyu Giken Kogyo Co Ltd | On board power source circuit separating device |
| DE19902073A1 (en) * | 1999-01-20 | 2000-08-10 | Bosch Gmbh Robert | Electrical conductor with ignition device |
| DE10139360C2 (en) | 2001-08-19 | 2003-11-13 | Peter Lell | Pyrosicherung without external effect in foreign and self-triggering |
| DE10209625A1 (en) * | 2002-03-05 | 2003-10-02 | Mbb Airbag Systems Gmbh | Pyrotechnic cutout for switching off a load e.g. in motor vehicle, has an ignition circuit, an operating current insulated from connection pieces and thermal separation between the connection pieces. |
| FR2953324B1 (en) * | 2009-11-27 | 2012-06-08 | Snpe Materiaux Energetiques | ELECTRIC SWITCH WITH SLIDING DRAWER FORMING CIRCUIT BREAKER OR SWITCH |
-
2011
- 2011-12-13 DE DE102011088347A patent/DE102011088347A1/en not_active Ceased
-
2012
- 2012-11-08 WO PCT/EP2012/072131 patent/WO2013087305A1/en active Application Filing
- 2012-11-08 CN CN201280061172.9A patent/CN103999181B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1168112C (en) * | 1998-04-19 | 2004-09-22 | Trw车辆电气与零件有限两合公司 | Device for isolating electric circuit, especially for high current intensities |
| CN101937795A (en) * | 2009-06-29 | 2011-01-05 | 丰田合成株式会社 | The circuit-breaker that is used for vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102011088347A1 (en) | 2013-06-13 |
| CN103999181A (en) | 2014-08-20 |
| WO2013087305A1 (en) | 2013-06-20 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |