CN101086938A - Mixed drive motorcar power control device and its protection method - Google Patents
Mixed drive motorcar power control device and its protection method Download PDFInfo
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- CN101086938A CN101086938A CN 200710024577 CN200710024577A CN101086938A CN 101086938 A CN101086938 A CN 101086938A CN 200710024577 CN200710024577 CN 200710024577 CN 200710024577 A CN200710024577 A CN 200710024577A CN 101086938 A CN101086938 A CN 101086938A
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Abstract
The invention discloses a mixed power automobile power control device and protection method, the high voltage parts (5) of the mixed power automobile power is set in the control box (1), reed switch (3) is set on bottom of the control box (1), the reed switch (3) can be acted by magnetism, raised magnet seat (12) is set on inner surface of protection cover (2) of opening of the control box (1), it is aligned with reed switch (3), magnet (4) is set on surface of magnet seat (12) towards reed switch (3). The invention can separate dangerous area of high voltage circuit, and uses precise reed switch inducing mode, user can be protected from threaten of high voltage reliably. The invention possesses characters that control is reliable, speed of response is quick, and cost is low, maintenance is convenient.
Description
Technical field
The invention belongs to the technical field of automobile construction, relate to the hybrid vehicle power-supply system, more particularly, the present invention relates to a kind of mixed drive motorcar power control device.In addition, the guard method that the invention still further relates to this control device and adopted.
Background technology
At present, DC high-voltage power supply is used more general and extensive in the hybrid vehicle technology, and therefore, the safeguard protection in high direct voltage field is becoming the major issue that must consider in the hybrid vehicle technological development.Carry out injury that high voltage protective must consider the high-tension electricity that the user may be subjected to and the influence that after high-pressure section is subjected to possible destruction (as car accident), causes.
At present be enough to human body is caused serious harm at the high voltage direct current that hybrid vehicle adopted.When the big electric current that high voltage direct current causes flows through human body, except that the shock of making us tingling, still might cause symptoms such as paralysis, spasm and expiratory dyspnea; To the most dangerous situation of human body is that to flow through the electric current of heart excessive, the original bioelectricity signal of heart is destroyed, cause normal heartbeat to become trickle tremble of per minute more than hundred times, heart will lose normal blood-pumping function this moment, so that blood circulation stops, still being difficult to make ventricle to recover normal pulsation though in time break away from power supply this moment, was the declaration of death in several minutes, and this phenomenon is " ventricular fibrillation ".
In actual mechanical process, may there be contact, comprises that the user reaches near the maintenance of part to the high pressure associated components to the Operation and maintenance personnel of high-tension electricity associated components and near part high-pressure section.For the specialized maintenance personnel, special secure ID is set and in instruction for maintenance, associative operation is emphasized, can prevent effectively that high-tension electricity is to the injury of maintenance personal ground.But for the layman, particularly the general-utility car user does not have the training through specialty, is the crowd who needs protection especially.
The protection to the layman has been ignored in the design of present most of hybrid power power supply, has the part-structure design that the high pressure alarming sign just is set; Wherein, part design is not then carried out effective isolation to the high-tension electricity parts, and the user is easy to contact the high-tension electricity parts, particularly at Vehicular vibration or after destroying; In addition, if high-tension electricity is not effectively talked about with protecting, the danger that vehicle occurs after the traffic accident can improve greatly.In a part of in addition structural design, use mechanical switch, when the user will operate relevant high-pressure section, need the own related switch of cut-out earlier; Such design can improve the class of security protection to the specialized maintenance personnel, but is helpless to the protection after domestic consumer's protection and the car accident.
In addition, because being connected of the short circuit that the destruction of controller that the collision of automobile produces and high-tension electricity parts can cause high-pressure section and high-pressure section and vehicle body, can cause very big injury to the personnel of scene of an automobile accident; Because the short circuit of high-pressure section causes the on fire of battery and fuel tank even blast easily, the secondary disaster of car accident taking place, causes more serious consequence simultaneously.
Summary of the invention
Problem to be solved by this invention provides a kind of mixed drive motorcar power control device and guard method thereof, its objective is the protection of the high voltage source that realizes hybrid vehicle, avoids the injury of high-tension electricity to personnel.
To achieve these goals; the technical scheme that the present invention takes is: this mixed drive motorcar power control device that is provided; be located on the high-tension circuit of hybrid vehicle electrical source of power; it is characterized in that: the high voltage component district of hybrid vehicle power supply is located in the controller box; reed switch is established in bottom at controller box; reed switch can be subjected to magnetic action; on the inner surface of the over cap on the opening of controller box; if the magnet mount pad of projection; aliging with reed switch in its position in box, establishes magnet at the magnet mount pad on the end face of reed switch.
Establish power control relay on the high-tension circuit of described hybrid vehicle electrical source of power, its switch contact is serially connected with on the described high-tension circuit, in described mixed drive motorcar power control device, establish control relay circuit, the coil tandem of the control iron core of described power control relay is on control relay circuit, described reed switch also is serially connected with on the control relay circuit, and the power supply of described control relay circuit is the low-tension supply of car load.
Distance between described magnet and the reed switch comprises two: magnet switch mounting distance and magnet switch safe distance, magnet switch safe distance is greater than magnet switch mounting distance, described reed switch is an elastomeric material, when over cap is in place, distance between magnet and the reed switch is a magnet switch mounting distance, and reed switch is an on-state; The distance that breaks away between controller box and magnet and the reed switch at over cap meets or exceeds magnet switch safe distance, and reed switch is an off-state.
Described reed switch is two, and corresponding magnet mount pad and magnet also respectively are two.
Described hybrid vehicle electrical source of power DC high-voltage power supply; On the described high-tension circuit, the load of serial connection automobile, this load comprises the drive motors of hybrid vehicle.
In order to realize the purpose identical with technique scheme; the present invention also provides the guard method that above-described mixed drive motorcar power control device adopted; its technical scheme is: described control device makes high-tension circuit be in two states respectively according to the state of reed switch: normal power-up state and power-off protection state, realize respectively:
Under the normal power-up state, the high-tension circuit conducting, DC high-voltage power supply drives the drive motors running of hybrid vehicle;
Under the power-off protection state, high-tension circuit disconnects, and the hybrid vehicle electrical source of power quits work.
Described normal power-up state is: over cap is in place, be that described over cap contacts fully with controller box, the magnetic of magnet is connected reed switch, the control relay circuit conducting, the power control relay energising, its switch contacts closure, the high-tension circuit conducting of hybrid vehicle electrical source of power;
Described power-off protection state is: the distance that over cap breaks away between controller box and magnet and the reed switch meets or exceeds magnet switch safe distance; the magnetic of magnet is inoperative to reed switch; reed switch disconnects; control relay circuit disconnects; the power control relay outage; its switch contacts is separated, and the high-tension circuit of hybrid vehicle electrical source of power disconnects.
The present invention adopts technique scheme; deathtrap to high-tension circuit isolates, and uses the protection of uncapping of accurate reed switch induction mode, has guaranteed that reliably the user is not subjected to the threat of high-tension electricity; when car accident takes place, also can realize effective protection in addition.The present invention has control reliably, and response speed is fast, and cost is low, takes into account characteristics such as maintenance.
Description of drawings
Below expressed content of each width of cloth accompanying drawing of this specification and the mark among the figure are made brief description:
Fig. 1 is the cross-sectional schematic of the controller box structure among the present invention;
Fig. 2 is a control circuit schematic diagram of the present invention;
Fig. 3 is the controller box contour structures schematic diagram among the present invention.
Fig. 4 is the reed switch view of magnet outside safe range among the present invention;
Fig. 5 is the reed switch view of magnet within safe range among the present invention.
Be labeled as among the figure: 1, controller box, 2, over cap, 3, reed switch; 4, magnet, 5, the high voltage component district, 6, DC high-voltage power supply; 7, power control relay, 8, control relay circuit, 9, load; 10, magnet switch safe distance, 11, magnet switch mounting distance, 12, the magnet mount pad; 13, high-tension circuit; 14, low-tension supply, 15, reed switch response district, 16, reed switch response transition region.
Embodiment
Contrast accompanying drawing below; by description to embodiment; to the effect of the mutual alignment between the shape of the specific embodiment of the present invention such as related each member, structure, the each several part and annexation, each several part and operation principle, manufacturing process and method for security protection involved in the present invention etc.; be described in further detail, inventive concept of the present invention, technical scheme had more complete, accurate and deep understanding to help those skilled in the art.
The of the present invention structure expressed as Fig. 1 to Fig. 3, the present invention is a kind of mixed drive motorcar power control device and guard method thereof, is located on the high-tension circuit 13 of hybrid vehicle electrical source of power.
In order to realize protecting to the high voltage source of hybrid vehicle; avoid the purpose of high-tension electricity to personnel's injury; the technical scheme that the present invention takes is: as shown in figures 1 and 3; this mixed drive motorcar power control device that is provided; the high voltage component district 5 of its hybrid vehicle power supply is located in the controller box 1; establish reed switch 3 in the bottom of controller box 1; reed switch 3 can be subjected to magnetic action; on the inner surface of the over cap on the opening of controller box 12; if the magnet mount pad 12 of projection; aliging with reed switch 3 in its position in box, establishes magnet 4 at magnet mount pad 12 on the end face of reed switch 3.
As mentioned above, this forceful electric power working portion protection device for installing that in hybrid vehicle, is positioned at enging cabin provided by the present invention, be that two ends provide magnet 4 and reed switch 3 respectively in controller box 1, use the device that cut-off of the reed switch 3 of magnetic field effect as control circuit; Over cap 2 on the controller box 1 is opened or when being destroyed, reed switch 3 can be controlled interlock circuit in time and turn-off the battery power supply system that is in automobile trunk, thereby protection is in the safety of the strong power part of front deck.
Control circuit embodiment of the present invention is as follows:
As shown in Figure 2, establish power control relay 7 on the high-tension circuit 13 of described hybrid vehicle electrical source of power, its switch contact is serially connected with on the described high-tension circuit, in described mixed drive motorcar power control device, establish control relay circuit 8, the coil tandem of the control iron core of described power control relay 7 is on control relay circuit 8, described reed switch 3 also is serially connected with on the control relay circuit 8, and the power supply of described control relay circuit 8 is the low-tension supply 14 of car load.
As shown in Fig. 1 and Fig. 2, during operate as normal, reed switch 3 (two reed switches 3 that comprise two ends in the controller box 1) is in closure state, drive circuit is in channel status, 8 pairs of power control relays 7 of control relay circuit drive, be positioned at of load 9 power supplies of the battery system of boot, mainly be meant automobile drive electric motor high pressure electricity consumption part; In two reed switches 3 any is in off state, and control relay circuit 8 can stop the driving to power control relay 7, and the battery system that is positioned at boot can be opened circuit and stop power supply to high-pressure section.
As shown in Figure 1, distance between described magnet 4 and the reed switch 3 comprises two: magnet switch mounting distance 11 and magnet switch safe distance 10, magnet switch safe distance 10 is greater than magnet switch mounting distance 11, described reed switch 3 is an elastomeric material, when over cap 2 is in place, distance between magnet 4 and the reed switch 3 is a magnet switch mounting distance 11, and reed switch 3 is an on-state; The distance that breaks away between controller box 1 and magnet 4 and the reed switch 3 at over cap 2 meets or exceeds magnet switch safe distance 10, and reed switch 3 is an off-state.
Described reed switch 3 is two, and corresponding magnet mount pad 12 and magnet 4 also respectively are two.
The machinery of the reed switch 3 of the magnet material of controller box 1 inside is as shown in Figure 1 installed relation and working range.On the magnet mount pad 12 at the two ends of the over cap 2 of controller box 1, two magnets 4 are installed respectively, two reed switches 3 are installed respectively in controller box 1 inner relevant position.Can improve the stability of system like this, prevent the danger that caused misoperation and local deformation are caused because single reed switch 3 is made mistakes.During operate as normal, magnet 4 and reed switch 3 are in installation site as shown in the figure, and the distance between magnet 4 and the reed switch 3 is a magnet switch mounting distance 11, reed switch 3 closures; When over cap 2 is unlocked or traffic accident produces distortion, the distance of magnet 4 and reed switch 3 surpasses magnet switch safe distance 10, is in outside the range of safety operation, and this moment, reed switch 3 was in off state.
The DC high-voltage power supply 6 that described hybrid vehicle electrical source of power is 144V; On the described high-tension circuit 13, the load 9 of serial connection automobile, this load 9 comprises the drive motors of hybrid vehicle.
Be illustrated in figure 3 as the basic forceful electric power input and output outline drawing of controller box 1, in design, the two focused on as far as possible, help reducing the zone of security protection like this, but will note the safe distance between adjacent two high-voltage conducting wires; The high-tension electricity in high pressure I/O cable district is separated with the outside with insulation protection lid 2.
Be the operation principle of reed switch 3 as shown in Figure 4 and Figure 5.Wherein, Fig. 4 is the reed switch view of magnet outside safe range among the present invention; Fig. 5 is the reed switch view of magnet within safe range among the present invention.When magnet 4 was in reed switch response transition region 16 shown in Fig. 4, reed switch 3 was in off state; When magnet is in reed switch shown in Figure 5 response district 15, reed switch 3 closed connections.
In order to realize the purpose identical with technique scheme; the present invention also provides the guard method that above-described mixed drive motorcar power control device adopted; its technical scheme is: described control device makes high-tension circuit 13 be in two states respectively according to the state of reed switch 3: normal power-up state and power-off protection state, realize respectively:
Under the normal power-up state, high-tension circuit 13 conductings, DC high-voltage power supply 6 drives the drive motors running of hybrid vehicle;
Under the power-off protection state, high-tension circuit 13 disconnects, and the hybrid vehicle electrical source of power quits work.
The concrete control mode of above two states is;
Described normal power-up state is: over cap 2 is in place, be that described over cap 2 contacts fully with controller box 1, the magnetic of magnet 4 is connected reed switch 3, control relay circuit 8 conductings, power control relay 7 energisings, its switch contacts closure, high-tension circuit 13 conductings of hybrid vehicle electrical source of power;
Described power-off protection state is: the distance that over cap 2 breaks away between controller box 1 and magnet 4 and the reed switch 3 meets or exceeds magnet switch safe distance 10; the magnetic of magnet 4 is inoperative to reed switch 3; reed switch 3 disconnects; control relay circuit 8 disconnects; power control relay 7 outages; its switch contacts is separated, and the high-tension circuit 13 of hybrid vehicle electrical source of power disconnects.
Characteristics of the present invention are that the dangerous part of high-tension electricity provides outside the necessary security sign, and safe and reliable protection system more is provided, and have effectively avoided contacting and injury of personnel and high-tension system.The protection of electronic control type is more safe and reliable; when over cap 2 is opened to certain degree (opening reaches predetermined distance); magnet 4 leaves reed switch 3; reed switch 3 is sensed magnetic field intensity less than set point; reed switch 3 triggers and is in off state, drives the high-voltage relay that is in the distant place and is power control relay 7 and turn-offs DC high-voltage power supply 6.When getting into an accident; when strong power system is damaged; over cap 2 can be damaged; magnet 4 also can depart from assigned address; cause magnetic field intensity that reed switch 3 senses less than set point; reed switch 3 triggers and is in off state, drives to be in power control relay 7 at a distance and to turn-off DC high-voltage power supply 6.Such protection can prevent effectively that high-tension current from being contacted by personnel, belongs to the automatic protection technology, that is to say the protection of finishing forceful electric power by the ACTIVE CONTROL of controller.
In addition, consider the collision after some parts of controller may be damaged and lose function corresponding, provide power supply and driving for this protection system in addition; When the power supply of this protection system is damaged, also can effectively close DC high-voltage power supply 6 after collision.
The specialized maintenance personnel injury that causes under the situation of carelessness of working has not only been considered in such protection; also considered to non-specialized-technical personnel sufficient protection is provided; simultaneously also considered the protection of vehicle under special circumstances (as car accident), made the reliable more and safety of hybrid power system.
In conjunction with the accompanying drawings the present invention has been carried out exemplary description above; obviously specific implementation of the present invention is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the various unsubstantialities that method of the present invention design and technical scheme carry out; or design of the present invention and technical scheme are directly applied to other occasion without improving, all within protection scope of the present invention.
Claims (7)
1; a kind of mixed drive motorcar power control device; be located on the high-tension circuit (13) of hybrid vehicle electrical source of power; it is characterized in that: the high voltage component district (5) of hybrid vehicle power supply is located in the controller box (1); establish reed switch (3) in the bottom of controller box (1); reed switch (3) can be subjected to magnetic action; on the inner surface of the over cap on the opening of controller box (1) (2); if the magnet mount pad (12) of projection; aliging with reed switch (3) in its position in box, establishes magnet (4) at magnet mount pad (12) on the end face of reed switch (3).
2, according to the described mixed drive motorcar power control device of claim 1, it is characterized in that: establish power control relay (7) on the high-tension circuit of described hybrid vehicle electrical source of power (13), its switch contact is serially connected with on the described high-tension circuit, in described mixed drive motorcar power control device, establish control relay circuit (8), the coil tandem of the control iron core of described power control relay (7) is on control relay circuit (8), described reed switch (3) also is serially connected with on the control relay circuit (8), and the power supply of described control relay circuit (8) is the low-tension supply (14) of car load.
3, according to the described mixed drive motorcar power control device of claim 2, it is characterized in that: the distance between described magnet (4) and the reed switch (3) comprises two: magnet switch mounting distance (11) and magnet switch safe distance (10), magnet switch safe distance (10) is greater than magnet switch mounting distance (11), described reed switch (3) is an elastomeric material, at over cap (2) when being in place, distance between magnet (4) and the reed switch (3) is a magnet switch mounting distance (11), and reed switch (3) is an on-state; The distance that breaks away between controller box (1) and magnet (4) and the reed switch (3) at over cap (2) meets or exceeds magnet switch safe distance (10), and reed switch (3) is an off-state.
4, according to the described mixed drive motorcar power control device of claim 3, it is characterized in that: described reed switch (3) is two, and corresponding magnet mount pad (12) and magnet (4) also respectively are two.
5, according to the described mixed drive motorcar power control device of claim 3, it is characterized in that: the DC high-voltage power supply (6) that described hybrid vehicle electrical source of power is 144V; On the described high-tension circuit (13), the load (9) of serial connection automobile, this load (9) comprises the drive motors of hybrid vehicle.
6, according to the guard method that any mixed drive motorcar power control device adopted described in the claim 3～5; it is characterized in that: described control device makes high-tension circuit (13) be in two states respectively according to the state of reed switch (3): normal power-up state and power-off protection state, realize respectively:
Under the normal power-up state, high-tension circuit (13) conducting, DC high-voltage power supply (6) drives the drive motors running of hybrid vehicle;
Under the power-off protection state, high-tension circuit (13) disconnects, and the hybrid vehicle electrical source of power quits work.
7, the guard method of adopting according to the described mixed drive motorcar power control device of claim 6 is characterized in that:
Described normal power-up state is: over cap (2) is in place, be that described over cap (2) contacts fully with controller box (1), the magnetic of magnet (4) is connected reed switch (3), control relay circuit (8) conducting, power control relay (7) energising, its switch contacts closure, the high-tension circuit of hybrid vehicle electrical source of power (13) conducting;
Described power-off protection state is: the distance that over cap (2) breaks away between controller box (1) and magnet (4) and the reed switch (3) meets or exceeds magnet switch safe distance (10); the magnetic of magnet (4) is inoperative to reed switch (3); reed switch (3) disconnects; control relay circuit (8) disconnects; power control relay (7) outage; its switch contacts is separated, and the high-tension circuit of hybrid vehicle electrical source of power (13) disconnects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710024577A CN100583345C (en) | 2007-06-14 | 2007-06-14 | Mixed drive motorcar power control device and its protection method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710024577A CN100583345C (en) | 2007-06-14 | 2007-06-14 | Mixed drive motorcar power control device and its protection method |
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| Publication Number | Publication Date |
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| CN101086938A true CN101086938A (en) | 2007-12-12 |
| CN100583345C CN100583345C (en) | 2010-01-20 |
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| CN200710024577A Active CN100583345C (en) | 2007-06-14 | 2007-06-14 | Mixed drive motorcar power control device and its protection method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101442203B (en) * | 2008-10-27 | 2012-05-23 | 奇瑞汽车股份有限公司 | Protection device for taking off cover of power battery |
| CN104081610A (en) * | 2012-01-05 | 2014-10-01 | 瑞美技术有限责任公司 | Safety cover with integrated magnet for reed switch |
| CN105633909A (en) * | 2014-10-31 | 2016-06-01 | 观致汽车有限公司 | Cover-opening prevention high-voltage device and electric or hybrid power vehicle therewith |
| CN110136914A (en) * | 2019-06-18 | 2019-08-16 | 中国科学院合肥物质科学研究院 | A kind of hybrid magnet interlock safety guard method |
| CN111740180A (en) * | 2020-06-30 | 2020-10-02 | 上海瓶安新能源科技有限公司 | Battery box illegal opening monitoring device based on photoelectric switch |
-
2007
- 2007-06-14 CN CN200710024577A patent/CN100583345C/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101442203B (en) * | 2008-10-27 | 2012-05-23 | 奇瑞汽车股份有限公司 | Protection device for taking off cover of power battery |
| CN104081610A (en) * | 2012-01-05 | 2014-10-01 | 瑞美技术有限责任公司 | Safety cover with integrated magnet for reed switch |
| CN104081610B (en) * | 2012-01-05 | 2017-04-05 | 瑞美技术有限责任公司 | Safety head with the integrally formed magnet for reed switch |
| CN105633909A (en) * | 2014-10-31 | 2016-06-01 | 观致汽车有限公司 | Cover-opening prevention high-voltage device and electric or hybrid power vehicle therewith |
| CN105633909B (en) * | 2014-10-31 | 2019-06-18 | 观致汽车有限公司 | Anti- uncap high voltage device and the electric or hybrid vehicle with it |
| CN110136914A (en) * | 2019-06-18 | 2019-08-16 | 中国科学院合肥物质科学研究院 | A kind of hybrid magnet interlock safety guard method |
| CN111740180A (en) * | 2020-06-30 | 2020-10-02 | 上海瓶安新能源科技有限公司 | Battery box illegal opening monitoring device based on photoelectric switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100583345C (en) | 2010-01-20 |
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