CN106849826B - A kind of electric vehicle motor driver of built-in high-current relay - Google Patents
A kind of electric vehicle motor driver of built-in high-current relay Download PDFInfo
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- CN106849826B CN106849826B CN201710127817.9A CN201710127817A CN106849826B CN 106849826 B CN106849826 B CN 106849826B CN 201710127817 A CN201710127817 A CN 201710127817A CN 106849826 B CN106849826 B CN 106849826B
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- relay
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- incoming end
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a kind of electric vehicle motor driver of built-in high-current relay, by the way that a power access end is divided into incoming end and power source internal incoming end outside power supply, and the first contact, the second contact respectively are installed respectively positioned at control layer segment at the two, so form a built-in high current relay with the relay actuator installed in key-course and the relay metallic plate on relay actuator.So, relay contact is directly installed on the binding post of motor driver so that whole high current path does not flow through key-course completely, avoids interference problem of the high current to key-course, the reliability of lifting motor driver；Simultaneously as contact is arranged on binding post, contact and the contact area of relay metallic plate can be made to do more, so as to realize the break-make of high current.In addition, high current flow path shortens, heat caused by contact also conducts easily by binding post, is advantageous to contact radiating.
Description
Technical field
The invention belongs to electric vehicle motor Drive technology field, more specifically, be related to a kind of built-in high current after
The electric vehicle motor driver of electrical equipment.
Background technology
Electric car uses vehicle power to be travelled with power wheel, not burns gasoline for power, do not produce tail gas,
It is used widely all over the world.
The motor of driving electric car is furnished with a motor driver (or referred to as electric machine controller), for by on-vehicle battery
Electric energy input motor, motor so convert electrical energy into electric car advance power.Motor driver is by controlling driving electricity
Stream carrys out the actions such as controlled motor acceleration, deceleration, braking.Electric vehicle motor power is in thousands of watts to hundreds of kilowatts, therefore, motor
Driving current is up to upper kiloampere.
Existing electric vehicle motor driver external structure and with the annexation of motor as shown in figure 1, wherein, (a) is
External structure, (b) are the connection diagram with motor.As shown in Fig. 1 (a), motor driver external motor driver shares
Five binding posts, include the binding post of two connection power supplys (respectively by an electric power incoming line), for being driven for motor
Device provides electric energy, is referred to as connecing power end, and the binding post of three connection motors, for motor, is referred to as
Connect motor side.As shown in Fig. 1 (b), a relay generally is connect in an electric power incoming line, for open or closed power supply, then
Motor driver is linked into, motor driver connects motor side motor after a series of controls, by three and operated.
When electric car stops working, relay can ensure that power unit is fully disconnected with motor driver, is carried with this
The security of high vehicle；When electric car is run, relay ensures that power unit and motor driver are reliably connected；In electric car
When there is emergency, relay can deenergization part and motor driver in time.
Existing electric vehicle motor internal drive structure is as shown in Fig. 2 mainly include upper lid, bottom, key-course, power
Layer.For circuit therein, one is power layer, and another is key-course.Five binding posts of motor driver are complete
All it is fixed on above power layer, surface current is big in power layer, and caloric value is high.In order to ensure that motor driver reliably radiates, work(
Rate layer is arranged on bottom plate (bottom plate is generally metal, has thermal conductive resin).
Because electric car power is big, its motor driver belongs to high current Motor Control Field.In the prior art, motor drives
Dynamic device using two ways come cut-in relay, it is a kind of as shown in Fig. 3 (a), by the disconnection of external high-current relay with
Closure realizes the open or closed of power supply.This mode needs motor driver individually to pick out control line to carry out control relay, after
Electrical equipment needs are independently installed, can not integrate in motor driver.
It is the problem of in order to overcome the system integration, another as shown in Fig. 3 (b), multiple small electricity are integrated in motor driver
Current relay, the control (open or closed) to high current is realized using multiple low current relay parallel ways.It is such
There are two defects in structure, first, multiple low current relays are when synchronously turning on, it is difficult to ensure the resistance one of each relay
Cause, it is not what is evenly distributed on each low current relay then to cause electric current, that is to say, that is passed through on the relay of part
Electric current it is big, the electric current passed through on the relay of part is small, by the big relay of electric current will be very easy to overload and damage.Two
It is that existing built-in low current break-make device must be welded on above key-course, electric current input and output pin must also be welded on control
Above layer circuit board.Electric current has to flow through key-course, and control layer circuit board is for low current Environment Design, when high current is led to
When crossing key-course, system heat generation is bigger, and the high current for flowing through key-course circuit can cause larger do to key-course circuit
Disturb, reduce the reliability of motor driver.
The content of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of electric car of built-in high-current relay electricity
Machine driver, on the basis of the system integration is easy to, eliminates high current and distribute interference of the uneven and high current to key-course
Problem, the reliability of lifting motor driver.
For achieving the above object, the electric vehicle motor driver of high-current relay built in the present invention, including control
Layer, power layer, it is characterised in that also include：
Incoming end outside power supply, power supply outside incoming end are connected to vehicle power by an electric power incoming line；
First contact, it is arranged on outside power supply on incoming end；
Power source internal incoming end, it is connected with power layer, high current is provided for power layer, for motor；
Second contact, it is arranged on power source internal incoming end；
Relay metallic plate and relay actuator, the relay metallic plate are arranged on relay actuator, institute
Relay actuator is stated on key-course, is controlled by key-course：Open or closed power supply；
Outside the power supply incoming end and power source internal incoming end not with key-course circuit communication；Outside the power supply
The first contact installed on incoming end and the second contact installed on power source internal incoming end are respectively positioned on key-course；In key-course
When control relay actuator connects vehicle power, relay actuator promotes relay metallic plate, makes it with the first contact, the
Two contacts contact simultaneously, and the electric current that on-vehicle battery provides touches after incoming end outside power supply enters motor driver by first
Point, relay metallic plate, the second contact and power source internal incoming end, power layer is flowed into, high current is provided for power layer, is used for
Motor；When key-course control relay actuator disconnects vehicle power, relay actuator promotes relay metallic plate,
Make it disconnect with the first contact, the second contact to contact, so as to disconnect the high current of power layer.
The object of the present invention is achieved like this.
The electric vehicle motor driver of high-current relay built in the present invention, by the way that a power access end is divided into power supply
Outside incoming end and power source internal incoming end, and the first contact, second respectively are installed respectively positioned at control layer segment at the two
Contact, so the relay metallic plate structure with the relay actuator installed in key-course and on relay actuator
Into a built-in high current relay.So, relay contact is directly installed on the binding post of motor driver (outside power supply
Incoming end and power source internal incoming end) on so that whole high current path does not flow through key-course completely, avoids high current pair
The interference problem of key-course, the reliability of lifting motor driver；Simultaneously as contact is arranged on binding post, can make
Contact and the contact area of relay metallic plate do more, and so as to realize the break-make of high current, overcome existing built-in small electricity
The disconnected device needs of circulation are multiple, the problem of electric current distribution is uneven easily occur, avoid relay overload problem.In addition, high current
Flow path shortens, and heat caused by contact also conducts easily by binding post, is advantageous to contact radiating.
Brief description of the drawings
Fig. 1 is the external structure of the existing example of electric vehicle motor driver one and the annexation figure with motor；
Fig. 2 is the cut-away view of electric vehicle motor driver shown in Fig. 1；
Fig. 3 is the access way signal of the relay for open or closed power supply in existing electric vehicle motor driver
Figure；
Fig. 4 is the cut-away view of motor driver shown in Fig. 3 (b)；
Fig. 5 is a kind of internal junction of embodiment of electric vehicle motor driver of high-current relay built in the present invention
Composition, wherein, (a) is actual cut-away view, and (b) is installation exploded view；
Fig. 6 is the inside of the electric vehicle motor driver another kind embodiment of high-current relay built in the present invention
Structure chart.
Embodiment
The embodiment of the present invention is described below in conjunction with the accompanying drawings, so as to those skilled in the art preferably
Understand the present invention.Requiring particular attention is that in the following description, when known function and the detailed description of design perhaps
When can desalinate the main contents of the present invention, these descriptions will be ignored herein.
Fig. 4 is the motor driver cut-away view of built-in multiple low current relays in the prior art.In Fig. 4, draw
Two low current relays, in actual use, if motor driver is bigger, may need more low currents after
Electrical equipment.
The binding post that a piece electric power incoming line is connected to by relay connects power end, and the electric current of such vehicle power is through being somebody's turn to do
Binding post enters multiple low current relays simultaneously, is then connected by control layer circuit board, key-course with power layer power supply
Line is directly connected to another and connects power end to power layer, another electric power incoming line, and the binding post for connecing power end is directly worn
Key-course printed board is crossed, is connected with power layer power end.
As shown in figure 4, low current break-make device must be welded on above key-course, electric current input and output pin must also weld
In key-course circuit board top, larger interference can be caused to key-course circuit, meanwhile, the electric current distribution of low current break-make device
Easily there is uneven phenomenon, cause to overload and damage.
Embodiment 1
In the present embodiment, as shown in figure 5, high-current relay built in the present inventionElectric carMotor driver includes control
Preparative layer 3, power layer 4.On this basis, increase has incoming end 1 outside power supply, and power supply outside incoming end 1 is entered by a power supply
Line is connected to vehicle power (not shown), in the present invention, is also installing the first contact 9 outside power supply on incoming end 1, specifically such as
Shown in Fig. 5 (b), electric power incoming line is connected to the upper part of incoming end 1 outside power supply, and the first contact 9 is arranged on outside power supply and connect
Enter the end portion at end 1, the first contact 9 is the good sheet metal of electric conductivity, and control is fixed in the bottom of power supply outside incoming end 1
On layer 3, and do not connect with control layer circuit board and insulate, fixed form uses bolt and nut, realizes incoming end 1 outside power supply
Reliably fixed with key-course 3, especially, add insulating materials between incoming end 1 and key-course 3 outside power supply, further carry
High insulation effect.
In the present invention, power source internal incoming end 2 is still further comprised, power source internal incoming end 2 is connected with power layer 4,
High current, the driving for motor are provided for power layer 4.
Second contact 7 is also installed, specific as shown in Fig. 5 (b), the upper end of power source internal incoming end 2 on power source internal incoming end 2
On key-course 3, end portion is connected and fixed to power layer 4, power source internal through key-course 3 (printed board via) for part
Incoming end 2 not with the circuit communication of power layer 4.Second contact 7 is arranged on the upper part of power source internal incoming end 2, outside power supply
The first contact 9 installed on incoming end 1 is located in same level.The fixation uses bolt and nut, realizes and is connect outside power supply
Enter end 2 reliably to fix with key-course 3, power layer 4.
In the present invention, it is described as shown in figure 5, still further comprising relay metallic plate 6 and relay actuator 5
Relay metallic plate 6 is arranged on relay actuator 5, and the relay actuator 5 is arranged on key-course 3, by key-course 3
Control：Open or closed power supply.The contact 9 of relay metallic plate 6 and first, the second contact 7 are respectively positioned on key-course 3, and same
On one horizontal plane.
In the present embodiment, the first contact 9, the second contact 7 are made of the high copper metal piece of electric conductivity, relay metal
Plate 6 is also copper metal plate, and three has carried out corresponding PROCESS FOR TREATMENT, when making its contact, can reliably be turned on.In key-course
When 3 control relay actuators 5 connect vehicle power, relay actuator 5 promotes relay metallic plate 6 to move to the left, makes
Good contact, the electric current that on-vehicle battery provides enter electricity from incoming end 1 outside power supply simultaneously with the first contact 9, the second contact 7 for it
After machine driver, by the first contact 9, relay metallic plate 6, the second contact 7 and power source internal incoming end 2, power is flowed into
Layer 4, high current, the driving for motor are provided for power layer 4.Similarly, car is disconnected in the control relay actuator 5 of key-course 3
When carrying power supply, relay actuator 5 promotes relay metallic plate 6, it is disconnected with the first contact 9, the second contact 7 and contacts, from
And disconnect the high current of power layer 4.
In the present invention, by the way that a power access end is divided into incoming end 1 and power source internal incoming end 2 outside power supply,
And the two positioned at control layer segment 3 respectively install respectively the first contact 9, the second contact 1, so with installed in key-course 3
Relay actuator 5 and relay metallic plate 6 on relay actuator 5 form a built-in high current relay
Device.
Above-mentioned built-in high-current relay is the functional part of high current electric machine control system (motor driver), the part
For connecting vehicle power and motor driver.By above-mentioned design, the relay can be built in inside motor driver.By
Binding post (access terminal 1 and the power source internal access outside power supply of motor driver is directly installed in the relay contact
Terminal 2) on so that whole high current path does not flow through key-course 3 completely.And (relay is held for the actuating of relay part
Row device 5 and relay metallic plate 6) it is directly anchored on the key-course 3 of motor driver, controlled by key-course 3.
In the present embodiment, the support of relay actuator 5 is sheet metal structure, the more conducively line of relay actuator 5
The radiating of circle, by installing heat outlet parts between the metal part of relay actuator 5 and binding post, relay can be further added by
The heat transfer efficiency of device in use, so that relay relay executable portion volume under same volume is smaller.
When high-current relay turns on, because high-current relay contact is directly installed on the binding post of motor driver
On, the high current of motor driver power layer does not flow through key-course completely, key-course is disturbed so as to reduce so that motor
Driver is more stable.
In addition, the first contact 9 and the second contact 7 are directly anchored on the binding post of electronic driver, big electricity has been shortened
The path of flowing, and more conducively contact is radiated, and caused heat directly (is connect by binding post in the course of the work for contact
Terminal) conduct to shell so that the electric current that the high-current relay of composition can pass through in same volume becomes much larger.
In the present invention, the actuator of high-current relay is welded on key-course, the metallic support of high-current relay
It can directly conduct heat to the binding post of motor driver by heat conducting material such as thermal grease etc., and then by heat
Conduct to motor driver shell, so that the electric current that high-current relay can pass through in identical volume is bigger.
Embodiment 2
In the present embodiment, as shown in fig. 6, the relay actuator 5 in Fig. 5 is replaced with into miniature linear 10, lead to
The i.e. relay metallic plate 6 of the contact-actuating copper coin of linear electric motors 10 is crossed to move forward and backward to realize the disconnection of relay and closure.
Although the illustrative embodiment of the present invention is described above, in order to the technology of the art
Personnel understand the present invention, it should be apparent that the invention is not restricted to the scope of embodiment, to the common skill of the art
For art personnel, if various change in the spirit and scope of the present invention that appended claim limits and determines, these
Change is it will be apparent that all utilize the innovation and creation of present inventive concept in the row of protection.
Claims (5)
1. a kind of electric vehicle motor driver of built-in high-current relay, including key-course, power layer, it is characterised in that also
Including：
Incoming end outside power supply, power supply outside incoming end are connected to vehicle power by an electric power incoming line；
First contact, it is arranged on outside power supply on incoming end；
Power source internal incoming end, it is connected with power layer, and high current is provided for power layer, the driving for motor；
Second contact, it is arranged on power source internal incoming end；
Relay metallic plate and relay actuator, the relay metallic plate be arranged on relay actuator on, it is described after
Electrical equipment actuator is arranged on key-course, is controlled by key-course：Open or closed power supply；
Outside the power supply incoming end and power source internal incoming end not with key-course circuit communication；Accessed outside the power supply
The first contact installed on end and the second contact installed on power source internal incoming end are respectively positioned on key-course；Controlled in key-course
When relay actuator connects vehicle power, relay actuator promotes relay metallic plate, it is touched with first, the second contact
Contact simultaneously, the electric current that on-vehicle battery provides passes through the first contact, relay after incoming end outside power supply enters motor driver
Device metallic plate, the second contact and power source internal incoming end, power layer is flowed into, high current is provided for power layer, for motor
Driving；When key-course control relay actuator disconnects vehicle power, relay actuator promotes relay metallic plate, makes it
Disconnect and contacting with the first contact, the second contact, so as to disconnect the high current of power layer.
2. motor driver according to claim 1, it is characterised in that electric power incoming line is connected to incoming end outside power supply
Upper part, the first contact are arranged on the end portion of incoming end outside power supply, and the first contact is the good metal of electric conductivity
Piece, the bottom of power supply outside incoming end is fixed on key-course, and is not connected with control layer circuit board and insulated；
Power source internal incoming end upper part is located on key-course, and end portion is affixed to power layer through key-course, electricity
Inside source incoming end not with power layer circuit communication；Power source internal incoming end upper part is arranged in the second contact, with power supply
The first contact installed on outside incoming end is located in same level；
Relay metallic plate and the first contact, the second contact are respectively positioned on key-course, and in same level.
3. motor driver according to claim 1, it is characterised in that fixed form uses bolt and nut, realizes power supply
Outside incoming end is reliably fixed with key-course, power source internal incoming end and power layer.
4. motor driver according to claim 3, it is characterised in that add outside power supply between incoming end and key-course
Enter insulating materials, further improve insulation effect.
5. motor driver according to claim 1, it is characterised in that the support of relay actuator is sheet metal knot
The radiating of structure, more conducively relay actuator coil, by being installed between relay actuator metal part and binding post
Heat outlet parts, the heat transfer efficiency of relay in use can be further added by so that relay under same volume after
Electrical equipment executable portion volume is smaller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710127817.9A CN106849826B (en) | 2017-03-06 | 2017-03-06 | A kind of electric vehicle motor driver of built-in high-current relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710127817.9A CN106849826B (en) | 2017-03-06 | 2017-03-06 | A kind of electric vehicle motor driver of built-in high-current relay |
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| Publication Number | Publication Date |
|---|---|
| CN106849826A CN106849826A (en) | 2017-06-13 |
| CN106849826B true CN106849826B (en) | 2018-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710127817.9A Active CN106849826B (en) | 2017-03-06 | 2017-03-06 | A kind of electric vehicle motor driver of built-in high-current relay |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1542330A2 (en) * | 2003-12-08 | 2005-06-15 | Rockwell Automation Technologies, Inc. | Apparatus and method for disabling the operation of high power devices |
| CN201479071U (en) * | 2009-07-30 | 2010-05-19 | 比亚迪股份有限公司 | Power-off device of electric motor controller |
| CN201893753U (en) * | 2010-11-18 | 2011-07-06 | 陕西航空电气有限责任公司 | Actuator driving device with modularized structure |
| CN102689601A (en) * | 2012-06-11 | 2012-09-26 | 浙江海康集团有限公司 | Integrated control system for new energy vehicles |
| CN205961008U (en) * | 2016-07-29 | 2017-02-15 | 青岛云路新能源科技有限公司 | AC motor controller |
-
2017
- 2017-03-06 CN CN201710127817.9A patent/CN106849826B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1542330A2 (en) * | 2003-12-08 | 2005-06-15 | Rockwell Automation Technologies, Inc. | Apparatus and method for disabling the operation of high power devices |
| CN201479071U (en) * | 2009-07-30 | 2010-05-19 | 比亚迪股份有限公司 | Power-off device of electric motor controller |
| CN201893753U (en) * | 2010-11-18 | 2011-07-06 | 陕西航空电气有限责任公司 | Actuator driving device with modularized structure |
| CN102689601A (en) * | 2012-06-11 | 2012-09-26 | 浙江海康集团有限公司 | Integrated control system for new energy vehicles |
| CN205961008U (en) * | 2016-07-29 | 2017-02-15 | 青岛云路新能源科技有限公司 | AC motor controller |
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| Publication number | Publication date |
|---|---|
| CN106849826A (en) | 2017-06-13 |
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