CN205523719U - Be applied to high voltage power distribution box that new energy automobile just has multiple protection - Google Patents

Be applied to high voltage power distribution box that new energy automobile just has multiple protection Download PDF

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Publication number
CN205523719U
CN205523719U CN201620075458.8U CN201620075458U CN205523719U CN 205523719 U CN205523719 U CN 205523719U CN 201620075458 U CN201620075458 U CN 201620075458U CN 205523719 U CN205523719 U CN 205523719U
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China
Prior art keywords
high voltage
interface
distribution box
relay
contactor
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Application number
CN201620075458.8U
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Chinese (zh)
Inventor
李占江
黄葳
高超
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Henan yuebo Hydrogen Power System Research Institute Co.,Ltd.
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Nanjing Yuebo Power System Co Ltd
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Priority to CN201620075458.8U priority Critical patent/CN205523719U/en
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Abstract

The utility model relates to a be applied to high voltage power distribution box that new energy automobile just has multiple protection, including high voltage power distribution box body, high voltage supply subtotal low pressure control section, the high voltage power distribution box body comprises high voltage power distribution box casing and insulated terminals, the high voltage supply part comprises high voltage connector socket, copper bar, contactor, preliminary filling resistance, fuse, service switch and high voltage interface, low pressure control section comprises relay, low pressure pencil, low pressure pencil keysets, low pressure interface. The utility model discloses a superior effect lies in: go to control the high pressure through low pressure, control contactor is all removed by the relay in each way, avoids direct and controls the contactor, keeps apart through the multilayer of relay and contactor, and the human body can not arrive the high pressure by direct contact, uses safelyr.

Description

A kind of high voltage distribution box being applied to new-energy automobile and there is multiple protective
Technical field
The utility model relates to the high voltage distribution installation providing high-tension electricity on new-energy automobile for car load equipment, is specifically related to a kind of answering For new-energy automobile and the high voltage distribution box with multiple protective.
Background technology
Along with popularization and the development of electric vehicle engineering, its safety problem also becomes more and more important.Electric automobile and fuel-engined vehicle Maximum difference is just because it using the direct current that voltage is the biggest, human body can cause the biggest potential safety hazard, therefore We must the break-make that control high pressure of reasonable science, turn off high pressure when breaking down, it is to avoid human body and high-tension electricity straight Contact, reduces the high pressure infringement to human body.
In existing equipment, the automobile of high voltage distribution box is not installed, needs the moment to provide high pressure to car load equipment, even equipment does not has It is in running status, causes many unnecessary wastes, and high pressure may have serious potential safety hazard to external equipment.And High voltage distribution box can in need when automobile is properly functioning add high pressure to some equipment, and all give device power without the moment, Decrease the consumption of electricity, also imply that and add continual mileage, it is often more important that can allow equipment safety use high-tension electricity.
It addition, the equipment on new-energy automobile has and certain bears electric current, if beyond the upper safety limit of electric current, then just Equipment can be caused certain infringement, the safety of passenger and vehicle is had very serious implications.
According to the problems referred to above, need badly now a kind of easy to install, it is possible to by low voltage control high pressure, band overcurrent protection is with pre- The high voltage distribution box of defencive function such as fill.
Utility model content
In order to overcome defect of the prior art, the purpose of this utility model is that proposing one is applied to new-energy automobile and has The high voltage distribution box of multiple protective.Described high voltage distribution box can enable signal by low pressure and control energising and the power-off of high pressure, keeps away Exempt from human body and directly control the break-make of high pressure, it is possible to electric machine controller and annex are carried out preliminary filling, can quick-break soon when electric current is excessive Open fuse, protect external equipment, it is possible to disconnect high pressure by service switch, enable a person to safe use high pressure, rationally control The break-make of high pressure processed, through multiple protective, strengthens human body and the safety of equipment.
For solving above-mentioned technical problem, the utility model is achieved through the following technical solutions:
A kind of high voltage distribution box being applied to new-energy automobile and having multiple protective, including high voltage power distribution box body, high voltage supply Part and low pressure control section;
Described high voltage power distribution box body is made up of high voltage distribution box housing and insulated terminal;
Described high voltage supply part by high-tension connector socket, copper bar, contactor, preliminary filling resistance, fuse, service switch and High voltage interface forms;
Described low pressure control section is made up of relay, low voltage wiring harness, low voltage wiring harness keyset, low-voltage interface.
Further, described copper bar is connected with the positive pole of battery, and a service switch of connecting on copper bar.To high voltage distribution box Disconnect high-tension electricity when keeping in repair, prevent from human body is damaged;Work as battery failure, when charging and discharging currents is excessive, maintenance Switch off, it is to avoid high-voltage board and external equipment are caused damage;High tension loop does not all use wire through copper bar, it is possible to Bear bigger electric current and voltage.
Further, the discharge loop of described battery is provided with current sensor.Described current sensor is used for detecting discharge and recharge electricity Flow valuve, it is simple to described high voltage distribution box is controlled and management, carry out multiple safeguard protection.
Further, described low-voltage interface includes annex preliminary filling relay interface, annex relay interface, master control preliminary filling relay Interface, master relay interface, charge relay interface, AIR COND RLY Air Conditioner Relay interface, defrosting relay interface, steering pump relay Device interface, air compressor machine relay interface, DC/DC relay interface;
Wherein, described low-voltage interface is for controlling the enable signal of relay, and low-voltage control signal is direct to relay by lead-in wire It is controlled, external voltage control signal low voltage wiring harness keyset in connector connects into high voltage distribution box, then by low pressure The low voltage wiring harness drawn on wire harness keyset is respectively connecting to each contactor and relay coil two ends, described relay and its Corresponding contactor coupling.
When there being enable signal, the meeting adhesive of high voltage distribution box corresponding relay, power on for its contactor coil controlled so that it is Normally opened contact adhesive, anode is conducted with the positive pole of corresponding high voltage interface, through fuse, thus to external equipment for height Piezoelectricity, when also receiving feedback signal after accessory contact device or master control contactor adhesive.
Further, described low voltage wiring harness keyset includes fly-wheel diode, it is to avoid the counter electromotive force pair produced when disconnecting contactor Equipment causes damage.
Described enable signal is Low level effective (if high level the most then enables voltage and selects according to relay coil voltage), Relay is directly controlled by low-voltage control signal by lead-in wire, and then external voltage control signal connects into height through connector Keyset in pressure block terminal, then it is respectively connecting to each contactor and relay coil two ends by the wire harness drawn on keyset; It addition, also with fly-wheel diode on keyset, it is to avoid equipment is caused damage by the counter electromotive force produced when disconnecting contactor.When When having enable signal, the meeting adhesive of corresponding relay, power on for its contactor coil controlled so that it is normally opened contact adhesive, electricity Pond positive pole is conducted with the positive pole of corresponding high voltage interface, through fuse, thus to external equipment for high-tension electricity, works as accessory contact Also can receive feedback signal after device or master control contactor adhesive, defrosting contactor is directly controlled by the switch that defrosts.If as The electric current that equipment fault causes is excessive, beyond the safe current of external equipment, then the fuse on corresponding circuit will burn out, Electric current will not flow into external equipment, thus avoids the damage to other equipment such as annexes.
Further, described high voltage interface include battery interface, motor interface, air-conditioning interface, defrosting interface, steering pump interface, Air compressor machine interface, DC/DC interface, and each interface is divided into positive pole and two parts of negative pole.
Further, described contactor includes master control contactor, accessory contact device, and master control contactor, accessory contact device are all provided with There are preliminary filling and main body circuit, precharging circuit have preliminary filling resistance carry out current limliting, it is to avoid starting current is excessive to electric machine controller or attached Part causes damage.It addition, be connected with wire from battery plus-negative plate respectively, it is used for carrying out Insulation monitoring.
When powering on, annex preliminary filling relay drives annex preliminary filling contactor adhesive, and preliminary filling completes rear attachment relay and drives annex to connect Tentaculum adhesive, is then turned off annex preliminary filling relay and contactor, and master control preliminary filling relay drives master control preliminary filling contactor to inhale afterwards Close, after preliminary filling, judge whether voltage reaches requirement, if voltage is not, the relay of annex and master control preliminary filling can be disconnected and contact Device, and report the fault of the failure that powers on.
Further, each high voltage interface is at least provided with a fuse, and its blowout current matches with external equipment.When Breaking down when causing electric current excessive, fuse can blow, thus disconnects the high pressure of relevant device, it is to avoid causes external equipment Damage.
Further, all there is feedback signal in master control contactor, the loop of accessory contact device.When master control contactor or accessory contact device After adhesive, adhesive understood equally by feddback relay device, sends feedback signal by low voltage wiring harness, is used for judging accessory contact device, master control The loop of contactor the most normally works, it is to avoid because high voltage distribution box internal relay, contactor fault cause wagon control to go out Now abnormal.
Compared with prior art, superior effect of the present utility model is:
(1) high voltage distribution box described in the utility model have under-voltage protection, overcurrent protection, limiting starting current, Insulation monitoring, Function, effective support vehicles and the safety of human body such as relay adhesive feedback, service switch, it is ensured that the normal traveling of vehicle.
(2) high voltage distribution box described in the utility model by low pressure go control high pressure (low pressure enable signal according to relay with contact Device coil voltage selects), controller send enable signal, control corresponding relay adhesive, then sent control letter by relay Number, control corresponding contactor adhesive, to high pressure on electric machine controller or annex.Control contactor is all removed by relay in each road, Avoiding directly being controlled contactor, the multilayer through relay and contactor is isolated, and human body will not directly contact high pressure, Use safer.
(3) when controlling voltage and being setting value, the action current of relay is smaller, and the output of normal controller can directly be driven Motor type relay, it is to avoid it is inadequate that controller is likely to occur load capacity, it is impossible to drive the problem that contactor etc. causes, other high pressure Block terminal is directly controlled by rigid line, it is only necessary to controller can export low and high level and can be controlled high voltage distribution box, So high voltage distribution box of the present utility model is lower to the requirement of peripheral control unit, applicability and security are the highest, use model Enclose extensively.
(4) there are annex feddback relay device and master control feddback relay device in a road of accessory contact device and master control contactor, when master control or attached During part contactor adhesive, feedback signal can be sent, it is simple to feedback signal is acquired by controller, it is possible to high voltage distribution box Fault judges.Feedback signal is conducive to abort situation and the reason of location high voltage distribution box, it is simple to maintenance test, event occurs Controller can be made during barrier to be fed back in time, improve the security of high voltage distribution box.
(5) high voltage distribution box described in the utility model is with master control and annex precharging circuit, is carried out by preliminary filling resistance when powering on Current limliting, it is to avoid because starting current is excessive, electric machine controller or annex are burnt out.
(6) can first carry out annex preliminary filling when high voltage distribution box described in the utility model powers on, preliminary filling disconnects preliminary filling and company after terminating Attachment, then carries out master control preliminary filling, if voltage is inadequate after certain time, then judges to power on unsuccessfully, disconnects all relays And contactor, successful then continue to power on to master control.When voltage is inadequate, it is possible to disconnect other loads, it is to avoid affect when under-voltage Electric machine controller and vehicle properly functioning, it is possible to provide under-voltage protection function to vehicle, it is provided that the security of traveling.
(7) high voltage distribution box described in the utility model at each road high voltage interface all at least provided with a fuse, when electric current is excessive Time fuse can quickly disconnect, it is to avoid burn out external equipment.The model of fuse is selected according to electric current and the voltage range of external equipment Select, it is impossible to the biggest or the least, otherwise do not have protective effect, or have influence on the normal use of equipment.Thered is provided by fuse The function of stream protection, it is ensured that the use that equipment and vehicle can be normal, safe.
(8) high voltage distribution box described in the utility model is drawn two wires on battery plus-negative plate respectively and is connected to Insulation monitoring and connects Mouthful, it is simple to other equipment or controller carry out Insulation monitoring to high-voltage board, it is to avoid when wet weather or the class of insulation are inadequate, electricity The safety of driver and passenger is worked the mischief by pond electric leakage.
(9) in high voltage distribution box described in the utility model, all of high-voltage great-current loop all can pass through copper inside high voltage distribution box Row, it is possible to bear the biggest electric current, and heat conductivility is good, it is to avoid wire exposes wire because heating makes crust come off The safety problem caused.
(10) high voltage distribution box described in the utility model is connected a service switch on the copper bar of anode, when battery occurs During fault, service switch can fuse, when additionally keeping in repair high voltage distribution box, it is possible to pulls up service switch and disconnects high voltage distribution box Internal high pressure, it is simple to inspection and the maintenance to high voltage distribution box afterwards, ensures the safety of attendant.
Accompanying drawing explanation
Fig. 1 is the theory diagram of high voltage distribution box described in the utility model;
Fig. 2 is the internal structure schematic diagram of high voltage distribution box described in the utility model;
Fig. 3 is that the A of high voltage distribution box described in Fig. 2 is to structural representation;
Fig. 4 is that the B of high voltage distribution box described in Fig. 2 is to structural representation;
Fig. 5 is that the C of high voltage distribution box described in Fig. 2 is to structural representation.
Accompanying drawing mark is as follows:
1-copper bar, 2-preliminary filling resistance, 3-service switch, 4-master relay, 5-low-voltage interface, 6-battery interface, 7-motor Interface, 8-contactor, 9-fuse, 10-current sensor, 11-air-conditioning interface, 12-defrosting interface, 13-steering pump interface, 14-inflating pump interface, 15-DC/DC interface, 16-master control contactor, 17-preliminary filling contactor, 18-electric machine controller, 19-are attached Part, 20-preliminary filling relay.
Detailed description of the invention
Below in conjunction with the accompanying drawings and the utility model is described in further detail by detailed description of the invention.
As shown in Fig. 2, Fig. 4, Fig. 5, a kind of height being applied to new-energy automobile and there is multiple protective described in the utility model Pressure block terminal, including high voltage power distribution box body, high voltage supply part and low pressure control section;Described high voltage power distribution box body by High voltage distribution box housing, insulated terminal form;Described high voltage supply part by high-tension connector socket, copper bar 1, contactor 8, Preliminary filling resistance 2, fuse 9, service switch 3 and high voltage interface composition;Described low pressure control section is by relay, low-voltage line Bundle, low voltage wiring harness keyset, low-voltage interface 5 form.Wherein, described low voltage wiring harness keyset includes fly-wheel diode, uses Come for contactor 8 afterflow, it is to avoid equipment is caused damage by the counter electromotive force produced when disconnecting contactor 8;Low-voltage interface described in 6 5, as the input interface of low-voltage control signal, are used for connecting the low-voltage control signal of outside, are connected internally to low voltage wiring harness switching Plate.
As depicted in figs. 1 and 2, electric machine controller 18 and annex 19 are divided into control and two circuit of preliminary filling, use two groups respectively Relay and contactor 8 are controlled, a preliminary filling resistance 2 of having connected in precharging circuit.Described contactor 8 contacts for master control Device 16, preliminary filling contactor 17, described relay is master relay 4, preliminary filling relay 20.Preliminary filling relay 20 when powering on Adhesive, then drives preliminary filling contactor 17 adhesive, due to the metering function of preliminary filling resistance 2, it is to avoid starting current crosses senior general's electricity Machine controller 18 or annex 19 burn out.Preliminary filling disconnects preliminary filling relay 20 after terminating, and makes master relay 4 adhesive, and then Driving master control contactor 16 adhesive, high voltage distribution box is operated in normal operating condition.
As shown in Fig. 2, Fig. 5, low-voltage control signal is connected to relay by keyset, and keyset is connected to fly-wheel diode, Avoid that reverse electromotive force is excessive causes contactor to damage.All low voltage wiring harness are incorporated on low voltage wiring harness keyset, the most attractive in appearance, The most safe and reliable, it is simple to the later stage maintenance test to wire harness.Wherein, Fig. 5 is provided with low pressure connector stand near left side, Being provided with plug-in unit stand near right edge, described plug-in unit stand is respectively equipped with heating cathode and adds antilogous pole.
As in figure 2 it is shown, the contact of contactor 8 is connected to the high voltage interface of external equipment by copper bar 1 and fuse 9.Protect The model of danger silk 9 selects according to electric current and the voltage range of external equipment, it is impossible to too big, does not otherwise have protective effect, also Can not select the least, otherwise influence whether the normal use of equipment.
Wherein, described copper bar 1 lower end uses insulated terminal to be fixed, and volume is little, light weight, and insulating capacity is strong, it is possible to High pressure is isolated with housing, just the high pressure of different circuit can be separated by choosing the insulated terminal of differing heights, improve Security.
As it is shown on figure 3, high voltage interface includes battery interface 6, motor interface 7, air-conditioning interface 11, defrosting interface 12, turns To pump interface 13, inflating pump interface 14, DC/DC interface 15, each interface is divided into positive pole and two parts of negative pole.In reality During use, the most suitable interpolation or deletion part of interface.
As shown in Figure 4, the positive pole of the battery of described high voltage distribution box is connected to service switch 3 by copper bar 1, is then passed through one Individual current sensor 10, is connected to a normally opened contact of contactor 8 by copper bar 1.The heat conduction of copper bar 1 and conductive capability Extremely strong, compared with using wire, make high voltage distribution box described in the utility model the most attractive in appearance after using copper bar 1, pacify again Complete practical, it is possible to the most simply to install, and the biggest space will not be taken.Contactor 8 contact can be born bigger Electric current and voltage, use safe enough.Wherein, the right side of service switch 3 described in Fig. 4 is provided with two core aviation plugs, institute State two core aviation plugs and be provided with Insulation monitoring positive pole and Insulation monitoring negative pole.
When control signal is connected to relay coil, control voltage and coil voltage matches, if be used for by high voltage distribution box The system of different voltages, the coil voltage of relay and contactor 8 is also required to change.The action current of relay is less, control Device processed can directly be driven, and without external power supply, range is more extensive.Contacted by Control motor Device 18, by multiple isolation, safer.
Use the utility model to have the new-energy automobile of high voltage distribution box of multiple protective, it is possible to automatic or manual to automobile The high-pressure section of each external equipment upper carries out powering on or power-off, controls high pressure by low pressure, by human body and high-pressure section every From, and feedback signal can be received after powering on, disconnect high pressure when equipment fault by the protection of fuse, it is possible to safety Reliably the high voltage electric equipment on car is controlled, and the use safety of high pressure can be ensured in great degree.
The utility model is not limited to above-mentioned embodiment, in the case of without departing substantially from flesh and blood of the present utility model, and ability Field technique personnel it is contemplated that any deformation, improve, replace and each fall within scope of the present utility model.

Claims (9)

1. one kind is applied to new-energy automobile and has the high voltage distribution box of multiple protective, it is characterised in that include high voltage power distribution box body, high voltage supply part and low pressure control section;
Described high voltage power distribution box body is made up of high voltage distribution box housing and insulated terminal;
Described high voltage supply part is made up of high-tension connector socket, copper bar, contactor, preliminary filling resistance, fuse, service switch and high voltage interface;
Described low pressure control section is made up of relay, low voltage wiring harness, low voltage wiring harness keyset, low-voltage interface.
The high voltage distribution box being applied to new-energy automobile and there is multiple protective the most according to claim 1, it is characterised in that described copper bar is connected with the positive pole of battery, and a service switch of connecting on copper bar.
The high voltage distribution box being applied to new-energy automobile and there is multiple protective the most according to claim 2, it is characterised in that the discharge loop of described battery is provided with current sensor.
The high voltage distribution box being applied to new-energy automobile and there is multiple protective the most according to claim 1; it is characterized in that, described low-voltage interface includes annex preliminary filling relay interface, annex relay interface, master control preliminary filling relay interface, master relay interface, charge relay interface, AIR COND RLY Air Conditioner Relay interface, defrosting relay interface, steering pump relay interface, air compressor machine relay interface, DC/DC relay interface;
Wherein, described low-voltage interface is for controlling the enable signal of relay, relay is directly controlled by low-voltage control signal by lead-in wire, external voltage control signal low voltage wiring harness keyset in connector connects into high voltage distribution box, being respectively connecting to each contactor and relay coil two ends by the low voltage wiring harness drawn on low voltage wiring harness keyset again, its corresponding contactor of described relay mates.
The high voltage distribution box being applied to new-energy automobile and there is multiple protective the most according to claim 1, it is characterised in that described low voltage wiring harness keyset includes fly-wheel diode.
The high voltage distribution box being applied to new-energy automobile and there is multiple protective the most according to claim 1; it is characterized in that; described high voltage interface includes that battery interface, motor interface, air-conditioning interface, defrosting interface, steering pump interface, air compressor machine interface, DC/DC interface, and each interface are divided into positive pole and two parts of negative pole.
7. according to being applied to new-energy automobile and there is the high voltage distribution box of multiple protective described in claim 1 or 6, it is characterised in that each high voltage interface is at least provided with a fuse, and its blowout current matches with external equipment.
The high voltage distribution box being applied to new-energy automobile and there is multiple protective the most according to claim 1; it is characterized in that; described contactor includes master control contactor, accessory contact device; and master control contactor, accessory contact device are equipped with preliminary filling and main body circuit, precharging circuit there is preliminary filling resistance carry out current limliting.
The high voltage distribution box being applied to new-energy automobile and there is multiple protective the most according to claim 8, it is characterised in that all there is feedback signal in described master control contactor, the loop of accessory contact device.
CN201620075458.8U 2016-01-25 2016-01-25 Be applied to high voltage power distribution box that new energy automobile just has multiple protection Active CN205523719U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620075458.8U CN205523719U (en) 2016-01-25 2016-01-25 Be applied to high voltage power distribution box that new energy automobile just has multiple protection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620075458.8U CN205523719U (en) 2016-01-25 2016-01-25 Be applied to high voltage power distribution box that new energy automobile just has multiple protection

Publications (1)

Publication Number Publication Date
CN205523719U true CN205523719U (en) 2016-08-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620075458.8U Active CN205523719U (en) 2016-01-25 2016-01-25 Be applied to high voltage power distribution box that new energy automobile just has multiple protection

Country Status (1)

Country Link
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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20211215

Address after: 475000 No. 166, north of 310 National Road, Wangtun Township, yuwangtai District, Kaifeng City, Henan Province

Patentee after: Henan yuebo Hydrogen Power System Research Institute Co.,Ltd.

Address before: Room 404, building 4, international talent port, No. 18, Jialing Jiangdong Street, Jianye District, Nanjing, Jiangsu 210019

Patentee before: NANJING YUEBOO POWER SYSTEM Co.,Ltd.

TR01 Transfer of patent right