CN103738257A - High-voltage component mounting method and frame of hybrid electric vehicle - Google Patents
High-voltage component mounting method and frame of hybrid electric vehicle Download PDFInfo
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- CN103738257A CN103738257A CN201310724420.XA CN201310724420A CN103738257A CN 103738257 A CN103738257 A CN 103738257A CN 201310724420 A CN201310724420 A CN 201310724420A CN 103738257 A CN103738257 A CN 103738257A
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Abstract
An embodiment of the invention provides a high-voltage component mounting method and a frame of a hybrid electric vehicle. The method comprises isolating an insulation area on the frame of the hybrid electric vehicle; mounting the high-voltage component in the insulation area; setting a high-voltage grounding reference point, and connecting a grounding circuit of the high-voltage component into the high-voltage grounding reference point. According to the frame, the insulation area is isolated on the frame, and the high-voltage component is mounted in the insulation area; the high-voltage grounding reference point is set, and the grounding circuit of the high-voltage component is connected into the high-voltage grounding reference point.
Description
Technical field
The present invention relates to hybrid electric vehicle technical field, particularly a kind of high potential assembly installation method and vehicle frame of hybrid electric vehicle.
Background technology
Progressively exhausted along with traditional energy, and environmental problem day by day increases the weight of, at present countries in the world all urgent hope at new energy field seeking breakthrough.Wherein, one of project of paramount importance in new energy field just of the new energy vehicle using electric energy as power resources.But be limited to battery manufacture technology, present stage still can not provide whole power to vehicle with pure electric power, so the main development direction of new energy vehicle is hybrid electric vehicle.Hybrid electric vehicle by explosive motor and high-voltage electric battery jointly as the power resources of vehicle.By high-voltage electric battery, provide electric power to carry out power compensation, make the power output of driving engine more be tending towards efficient, improved the utilization ratio of the energy, reduced discharge simultaneously.
Because hybrid electric vehicle need to rely on electric power as a part of power, so that the electric component himself comprising is compared conventional truck is more complicated.In hybrid electric vehicle, electric component is divided into high potential assembly and low pressure assembly two classes.So-called high potential assembly, be distinctive electric component in hybrid electric vehicle, mainly comprise that high-voltage electric battery, power motor, electric hydraulic power-assisted steering device, electric air compression set and corresponding voltage transformer, inverter etc. need the electric component of high voltage drive; And low pressure assembly is generally the electric component that conventional truck comprises originally, with low voltage drive operation, comprise AMT change speed gear box etc.
In hybrid electric vehicle, EMC problem (Electro Magnetic Compatibility, i.e. electromagnetic compatibility) is the key that affects electric component stability.In operational process due to high potential assembly, often produce the strong interfering signals such as surge current, peak voltage and temporary disturbance, thus the serious work that affects low pressure assembly.Wherein, interfering signal is the most obvious for the impact of AMT change speed gear box, is easy to cause off-square gear switch.Present stage also do not exist one succinctly effectively, scheme cheaply, can solve the EMC problem of hybrid electric vehicle mesohigh assembly and low pressure assembly.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of high potential assembly installation method and vehicle frame of hybrid electric vehicle, by insulation isolated high-voltage assembly, the electromagnetic interference of having avoided high potential assembly to produce low pressure assembly.
For achieving the above object, there is following technical scheme:
A high potential assembly installation method for hybrid electric vehicle, described method comprises:
On the vehicle frame of hybrid electric vehicle, isolate insulation layer; High potential assembly is arranged in the middle of described insulation layer;
High-voltage earthing R point is set, by the circuit ground access high-voltage earthing R point of high potential assembly.
Described method also comprises:
By the circuit ground access low tension battery of high potential assembly.
Described high potential assembly comprises:
High-voltage electric battery, power motor, electric hydraulic power-assisted steering device, electric air compression set, high-tension transformer, high-voltage inverter and high-tension distribution box;
Each high potential assembly connects with high voltage cable, described high voltage cable outsourcing screen layer.
The circuit ground of described high potential assembly is specially:
With the screen layer of high voltage cable, connect high-tension distribution box shell and form shield loop, by the circuit ground of described shield loop high potential assembly.
Describedly on the vehicle frame of hybrid electric vehicle, isolate insulation layer and be specially:
In the designated area of vehicle frame, lay insulation spacer, and utilize insulated bolt that described insulation spacer is fixed.
Described method also comprises:
Installing insulating pad on the shell of power motor.
A vehicle frame for hybrid electric vehicle, described vehicle frame is specially:
On described vehicle frame, isolate insulating regions, high potential assembly is arranged in the middle of described insulation layer; High-voltage earthing R point is set, by the circuit ground access high-voltage earthing R point of high potential assembly.
Described vehicle frame also comprises:
By the circuit ground access low tension battery of high potential assembly.
Described high potential assembly comprises:
High-voltage electric battery, power motor, electric hydraulic power-assisted steering device, electric air compression set, high-tension transformer, high-voltage inverter and high-tension distribution box; Each high potential assembly connects with high voltage cable, described high voltage cable outsourcing screen layer;
The circuit ground of described high potential assembly is specially; With the screen layer of high voltage cable, connect high-tension distribution box shell and form shield loop, by the circuit ground of described shield loop high potential assembly.
Described insulation layer is specially:
In the designated area of vehicle frame, lay insulation spacer, and utilize insulated bolt that described insulation spacer is fixed.
As seen through the above technical solutions, the beneficial effect that the present invention exists is: within high potential assembly is arranged on to insulation layer, and the high-voltage earthing R point that the circuit ground access of high potential assembly is arranged separately, thereby by high potential assembly insulation screen, stop the propagation of interfering signal in high potential assembly, avoided the interference of high potential assembly for low pressure assembly; And high potential assembly is arranged on to the mode within insulation layer, few for the changing of design of hybrid electric vehicle, succinctly practical, cost is lower; The static of high potential assembly inner accumulation is imported to low tension battery, avoided the damage of static to high potential assembly.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is method flow diagram described in the embodiment of the present invention;
Fig. 2 is insulation layer structural representation described in the embodiment of the present invention;
Fig. 3 is body frame structure for automotive schematic diagram described in the embodiment of the present invention.
The specific embodiment
For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
In the present invention, for solving EMC problem, adopted the mode of insulation isolated high-voltage assembly, stoped interfering signal in high potential assembly to be propagated to low pressure assembly, thereby reach the effect that shielding is disturbed.
Shown in Figure 1, said method comprising the steps of:
The vehicle frame of hybrid electric vehicle is that the also platform of vehicle all parts is installed.In the prior art, high potential assembly and low pressure assembly are to be all directly arranged on vehicle frame, substantially do not have each other actv. shielding measure, so the interfering signal that high potential assembly produces directly produces and disturbs and impact low pressure assembly often.
In the present embodiment, will on vehicle frame, isolate insulation layer, namely by the region of the region of installation high-voltage assembly and installation low pressure assembly separately, and insulated from each other, with the propagation of this interference blocker signal.The mode that isolates insulation layer is specially: in the designated area of vehicle frame, lay insulation spacer, and utilize insulated bolt that described insulation spacer is fixed.Shown in Fig. 2, it is the structural representation of insulation spacer 201, insulated bolt 202 and high potential assembly 203.
It should be noted that, high potential assembly described in the present embodiment comprises high-voltage electric battery, power motor, electric hydraulic power-assisted steering device, electric air compression set, high-tension transformer, high-voltage inverter and high-tension distribution box.
Described high-voltage electric battery is for storage of electrical energy, and the electric energy of its storage is using the power resources as hybrid electric vehicle.Power motor both can be used as electrical motor, the electric energy of high-voltage electric battery storage was converted to the mechanical energy of hybrid electric vehicle, also can be used as electrical generator and produced electric energy, to high-voltage electric battery, charged.The devices such as electric hydraulic power-assisted steering device, electric air compression set, high-tension transformer, high-voltage inverter and high-tension distribution box, all belong to the common hardware unit that auxiliary hybrid power car moves, and at this, introduce no longer one by one.
Between the high potential assembly of above various species, with high voltage cable, connect described high voltage cable outsourcing screen layer.
Electric component access ground connection R point is a requisite link during electric component is installed.The present embodiment mesohigh assembly is with described circuit ground access ground connection R point.Described circuit ground is specially, and connects high-tension distribution box shell and forms shield loop, by the circuit ground of described shield loop high potential assembly with the screen layer of high voltage cable.That is to say, the access ground connection R point that in the present embodiment, all high potential assemblies are unified, after the screen layer of high voltage cable is connected with high-tension distribution box shell, be equivalent to high potential assembly with respect to external overall insulation and obturation, thereby the interfering signal of shielding high potential assembly is outwards propagated.
In prior art, a ground connection R point is often only set, high potential assembly and low pressure assembly all access this ground connection R point.The circuit ground of high potential assembly utilizes high voltage cable access ground connection R point, and near ground connection R point, also has the cable access of low pressure assembly, and this just inevitable high voltage cable is responded to the cable conducted interference to low pressure assembly by near field radio frequency; Even if high-tension cable exists screen layer, it is still obvious that near field radio frequency is responded to the interference bringing.
So in the present embodiment, by the ground connection R point of high potential assembly and low pressure assembly separately, the circuit ground access high-voltage earthing R point of high potential assembly, the circuit ground access low-voltage ground R point of low pressure assembly.Between two R points, maintain a certain distance, avoided near field radio frequency to respond to the impact bringing.
High potential assembly is in the middle of work, and inner meeting produces a large amount of static.And in the state of high potential assembly described in the present embodiment in insulation screen, static just can accumulate, and hardware is caused damage.So in the present embodiment, in the circuit ground access high-voltage earthing R point of high potential assembly, also, by described circuit ground access low tension battery, to derive the static of accumulation, avoided the damage of static for hardware.
This step is a preferred steps of described method.In described high potential assembly, power motor is that to produce interfering signal the most serious, so further installing insulating pad on the shell of power motor in the present embodiment is strengthened insulation and shielding for power motor, has improved the shield effectiveness of interfering signal.
As seen through the above technical solutions, the beneficial effect that described in the present embodiment, method exists is: within high potential assembly is arranged on to insulation layer, and the high-voltage earthing R point that the circuit ground access of high potential assembly is arranged separately, thereby by high potential assembly insulation screen, stop the propagation of interfering signal in high potential assembly, avoided the interference of high potential assembly for low pressure assembly; And high potential assembly is arranged on to the mode within insulation layer, few for the changing of design of hybrid electric vehicle, succinctly practical, cost is lower; The static of high potential assembly inner accumulation is imported to low tension battery, avoided the damage of static to high potential assembly.
Corresponding high potential assembly installation method of the present invention, also comprises a kind of vehicle frame of hybrid electric vehicle in the present invention, the vehicle frame that described vehicle frame obtains after installation high-voltage assembly according to the method described above.Shown in Fig. 3, in Fig. 3, heavy black line represents the insulating pad in insulating regions, and Fig. 3 is only the schematic diagram of described vehicle frame, does not limit the position relationship of each high potential assembly; The concrete installation site of high potential assembly can be according to the design plan accommodation of hybrid electric vehicle.Described vehicle frame is specially:
On described vehicle frame, isolate insulating regions, high potential assembly is arranged in the middle of described insulation layer; High-voltage earthing R point is set, by the circuit ground access high-voltage earthing R point of high potential assembly.
By the circuit ground access low tension battery of high potential assembly.
Described high potential assembly comprises: high-voltage electric battery, power motor, electric hydraulic power-assisted steering device, electric air compression set, high-tension transformer, high-voltage inverter and high-tension distribution box; Each high potential assembly connects with high voltage cable, described high voltage cable outsourcing screen layer;
The circuit ground of described high potential assembly is specially; With the screen layer of high voltage cable, connect high-tension distribution box shell and form shield loop, by the circuit ground of described shield loop high potential assembly.
Described insulation layer is specially: in the designated area of vehicle frame, lay insulation spacer, and utilize insulated bolt that described insulation spacer is fixed.
The vehicle frame of hybrid electric vehicle is that the also platform of vehicle all parts is installed.In the prior art, high potential assembly and low pressure assembly are to be all directly arranged on vehicle frame, substantially do not have each other actv. shielding measure, so the interfering signal that high potential assembly produces directly produces and disturbs and impact low pressure assembly often.
In the present embodiment, will on vehicle frame, isolate insulation layer, namely by the region of the region of installation high-voltage assembly and installation low pressure assembly separately, and insulated from each other, with the propagation of this interference blocker signal.The mode that isolates insulation layer is specially: in the designated area of vehicle frame, lay insulation spacer, and utilize insulated bolt that described insulation spacer is fixed.Shown in Fig. 2, it is the structural representation of insulation spacer 201, insulated bolt 202 and high potential assembly 203.
It should be noted that, high potential assembly described in the present embodiment comprises high-voltage electric battery, power motor, electric hydraulic power-assisted steering device, electric air compression set, high-tension transformer, high-voltage inverter and high-tension distribution box.
Described high-voltage electric battery is for storage of electrical energy, and the electric energy of its storage is using the power resources as hybrid electric vehicle.Power motor both can be used as electrical motor, the electric energy of high-voltage electric battery storage was converted to the mechanical energy of hybrid electric vehicle, also can be used as electrical generator and produced electric energy, to high-voltage electric battery, charged.The devices such as electric hydraulic power-assisted steering device, electric air compression set, high-tension transformer, high-voltage inverter and high-tension distribution box, all belong to the common hardware unit that auxiliary hybrid power car moves, and at this, introduce no longer one by one.
Between the high potential assembly of above various species, with high voltage cable, connect described high voltage cable outsourcing screen layer.
Electric component access ground connection R point is a requisite link during electric component is installed.The present embodiment mesohigh assembly is with described circuit ground access ground connection R point.Described circuit ground is specially, and connects high-tension distribution box shell and forms shield loop, by the circuit ground of described shield loop high potential assembly with the screen layer of high voltage cable.That is to say, the access ground connection R point that in the present embodiment, all high potential assemblies are unified, after the screen layer of high voltage cable is connected with high-tension distribution box shell, be equivalent to high potential assembly with respect to external overall insulation and obturation, thereby the interfering signal of shielding high potential assembly is outwards propagated.
In prior art, a ground connection R point is often only set, high potential assembly and low pressure assembly all access this ground connection R point.The circuit ground of high potential assembly utilizes high voltage cable access ground connection R point, and near ground connection R point, also has the cable access of low pressure assembly, and this just inevitable high voltage cable is responded to the cable conducted interference to low pressure assembly by near field radio frequency; Even if high-tension cable exists screen layer, it is still obvious that near field radio frequency is responded to the interference bringing.
So in the present embodiment, by the ground connection R point of high potential assembly and low pressure assembly separately, the circuit ground access high-voltage earthing R point of high potential assembly, the circuit ground access low-voltage ground R point of low pressure assembly.Between two R points, maintain a certain distance, avoided near field radio frequency to respond to the impact bringing.
High potential assembly is in the middle of work, and inner meeting produces a large amount of static.And in the state of high potential assembly described in the present embodiment in insulation screen, static just can accumulate, and hardware is caused damage.So in the present embodiment, in the circuit ground access high-voltage earthing R point of high potential assembly, also, by described circuit ground access low tension battery, to derive the static of accumulation, avoided the damage of static for hardware.
As seen through the above technical solutions, the beneficial effect that described in the present embodiment, vehicle frame exists is: within high potential assembly is arranged on to insulation layer, and the high-voltage earthing R point that the circuit ground access of high potential assembly is arranged separately, thereby by high potential assembly insulation screen, organize the propagation of interfering signal in high potential assembly, avoided the interference of high potential assembly for low pressure assembly; And high potential assembly is arranged on to the mode within insulation layer, few for the changing of design of hybrid electric vehicle, succinctly practical, cost is lower; The static of high potential assembly inner accumulation is imported to low tension battery, avoided the damage of static to high potential assembly.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a high potential assembly installation method for hybrid electric vehicle, is characterized in that, described method comprises:
On the vehicle frame of hybrid electric vehicle, isolate insulation layer; High potential assembly is arranged in the middle of described insulation layer;
High-voltage earthing R point is set, by the circuit ground access high-voltage earthing R point of high potential assembly.
2. method according to claim 1, is characterized in that, described method also comprises:
By the circuit ground access low tension battery of high potential assembly.
3. method according to claim 2, is characterized in that, described high potential assembly comprises:
High-voltage electric battery, power motor, electric hydraulic power-assisted steering device, electric air compression set, high-tension transformer, high-voltage inverter and high-tension distribution box;
Each high potential assembly connects with high voltage cable, described high voltage cable outsourcing screen layer.
4. method according to claim 3, is characterized in that, the circuit ground of described high potential assembly is specially:
With the screen layer of high voltage cable, connect high-tension distribution box shell and form shield loop, by the circuit ground of described shield loop high potential assembly.
5. method according to claim 1, is characterized in that, describedly on the vehicle frame of hybrid electric vehicle, isolates insulation layer and is specially:
In the designated area of vehicle frame, lay insulation spacer, and utilize insulated bolt that described insulation spacer is fixed.
6. according to method described in claim 1～5 any one, it is characterized in that, described method also comprises:
Installing insulating pad on the shell of power motor.
7. a vehicle frame for hybrid electric vehicle, is characterized in that, described vehicle frame is specially:
On described vehicle frame, isolate insulating regions, high potential assembly is arranged in the middle of described insulation layer; High-voltage earthing R point is set, by the circuit ground access high-voltage earthing R point of high potential assembly.
8. vehicle frame according to claim 7, is characterized in that, described vehicle frame also comprises:
By the circuit ground access low tension battery of high potential assembly.
9. vehicle frame according to claim 7, is characterized in that, described high potential assembly comprises:
High-voltage electric battery, power motor, electric hydraulic power-assisted steering device, electric air compression set, high-tension transformer, high-voltage inverter and high-tension distribution box; Each high potential assembly connects with high voltage cable, described high voltage cable outsourcing screen layer;
The circuit ground of described high potential assembly is specially; With the screen layer of high voltage cable, connect high-tension distribution box shell and form shield loop, by the circuit ground of described shield loop high potential assembly.
10. vehicle frame according to claim 7, is characterized in that, described insulation layer is specially:
In the designated area of vehicle frame, lay insulation spacer, and utilize insulated bolt that described insulation spacer is fixed.
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| CN201310724420.XA CN103738257A (en) | 2013-12-24 | 2013-12-24 | High-voltage component mounting method and frame of hybrid electric vehicle |
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| CN201310724420.XA CN103738257A (en) | 2013-12-24 | 2013-12-24 | High-voltage component mounting method and frame of hybrid electric vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107453008A (en) * | 2017-09-14 | 2017-12-08 | 汽-大众汽车有限公司 | A kind of pure electric vehicle battery bag heating system and its control method |
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- 2013-12-24 CN CN201310724420.XA patent/CN103738257A/en active Pending
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107453008A (en) * | 2017-09-14 | 2017-12-08 | 汽-大众汽车有限公司 | A kind of pure electric vehicle battery bag heating system and its control method |
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Application publication date: 20140423 |