CN203854523U - Automobile high-voltage line contactor - Google Patents
Automobile high-voltage line contactor Download PDFInfo
- Publication number
- CN203854523U CN203854523U CN201420237863.6U CN201420237863U CN203854523U CN 203854523 U CN203854523 U CN 203854523U CN 201420237863 U CN201420237863 U CN 201420237863U CN 203854523 U CN203854523 U CN 203854523U
- Authority
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- China
- Prior art keywords
- connecting rod
- voltage line
- gas compartment
- cylinder
- contact end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000005192 partition Methods 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000010891 electric arc Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 229920003020 cross-linked polyethylene Polymers 0.000 description 2
- 239000004703 cross-linked polyethylene Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model relates to the technical field of automobile power distribution control and provides an automobile high-voltage line contactor. The automobile high-voltage line contactor comprises a two-position four-way electromagnetic valve and an air cylinder, wherein the air cylinder is communicated with the two-position four-way electromagnetic valve which is electrically connected with an automobile controller. The two-position four-way electromagnetic valve is provided with a valve seat, an electromagnetic coil, a valve core and four airway ports a, b, P and T. The air cylinder is provided with a piston which partitions an inner cavity of the air cylinder into a first air chamber and a second air chamber with a connecting rod, and the connecting rod extends out of the second air chamber from the piston. A reset spring sleeves a portion, in the second air chamber, of the connecting rod. One end, extending out of the second air chamber, of the connecting rod is connected with a moving contact end of a high-voltage direct-current switch, and a fixed contact end of the high-voltage direct-current switch is serially connected onto a high-voltage line. On and off of a relay are controlled by electrification of compressed air and the two-position four-way electromagnetic valve, high on-off reliability and high on-off speed are achieved, and the problem of potential safety hazards is solved.
Description
Technical field
The utility model belongs to automobile distribution control technology field, relates in particular to a kind of automotive high voltage line road contactless switch.
Background technology
In the high-tension line of pure electric automobile or oil-electric vehicle, relay is operated under the harsh environment of high-voltage large current, fault often sticks together, cause the make-and-break signal that relay can not response controller, car load high-pressure system is malfunctioning, if high-pressure system can not and at present electricity, will there is the potential safety hazards such as personnel get an electric shock, device damage.
At present, for above-mentioned adhesion fault phenomenon, the general high direct voltage contactless switch that adopts is controlled the break-make of hvdc circuit, its structure is with reference to shown in figure 1, work as coil electricity, the magnetic field producing makes iron core produce the pulling force upward movement that electromagnetic attracting force armature overcomes retracing spring, makes contact a and contact b closed, and hvdc circuit is connected.When magnet coil power-off, the electromagnetic force in iron core disappears, and armature is resetted by the effect of retracing spring pulling force, and contact a disconnects and contacting with contact b, and hvdc circuit disconnects.
But the high direct voltage contactless switch shown in Fig. 1 easily lost efficacy, and caused the existence of potential safety hazard, specifically there is following defect in it:
(1) in the iron core of electromagnet and armature, there is remanent magnetism, after long-time use, even if coil stops energising, between armature and iron core, still have magnetic force, reduce break contact a, b with joint efforts, cause high voltage connector opening velocity to decline and even cannot disconnect;
(2) distance between the size of electromagnetic force and armature and iron core is exponential relationship.If distance is larger, close switch needs large electric current, causes switch consumption of current large; If distance is less, remanent magnetism power is larger.In addition,, if distance is less, high-voltage switch gear likely cannot disconnect the large electric current passing through.
Utility model content
The purpose of this utility model is to provide a kind of automotive high voltage line road contactless switch, and the high voltage connector that being intended to solve prior art provides is realized high-voltage switch gear is controlled by electromagnet and armature, easily loses efficacy, and has the problem of potential safety hazard.
The utility model is to realize like this, a kind of automotive high voltage line road contactless switch, described automotive high voltage line road contactless switch comprises the two-position four-way solenoid valve being electrically connected to the entire car controller of automobile and the cylinder being communicated with described two-position four-way solenoid valve, described two-position four-way solenoid valve is provided with valve seat, magnet coil, spool and four air flue port a, b, P, T, described cylinder is provided with a piston, described piston is divided into the first gas compartment by described cylinder inner cavity and is provided with the second gas compartment of connecting rod, described connecting rod extends described the second gas compartment from described piston, the part that described connecting rod is positioned at described the second gas compartment is arranged with retracing spring, described connecting rod extends the movable contact end of one end connection high-voltage direct current switch of described the second gas compartment, the stationary contact end of described high-voltage direct current switch is connected on high-tension line,
Wherein, described port a is communicated with air bottle by free air diffuser, and described port b is communicated with ambient atmosphere by exhaust passage, and described port P, T are communicated with by the first gas compartment and second gas compartment of cylinder described in gas passage respectively.
As a kind of improved plan, described high-voltage direct current switch is encapsulated in arc suppressing apparatus.
As a kind of improved plan, described arc suppressing apparatus comprises arcing chamber and the longitudinal arc extinguishing grid pieces arranging that is arranged on described movable contact end and stationary contact end surrounding.
As a kind of improved plan, described two-position four-way solenoid valve, cylinder and high-voltage direct current switch are encapsulated in insulated shell.
Because automotive high voltage line road contactless switch comprises two-position four-way solenoid valve, cylinder, high-voltage direct current switch and air bottle, by pressure gas and electromagnetic valve, switch on, the switch of relay is controlled, the reliability of its break-make is strong, break-make speed is fast, has solved security hidden trouble.
Owing to arc suppressing apparatus being set around at high-voltage direct current switch, arc suppressing apparatus comprises arcing chamber and arc extinguishing grid pieces, to adapt to the break-make occasion of high-voltage large current.
Because automotive high voltage line road contactless switch encapsulates by insulated shell, input end and mouth, the control input end of entire car controller and free air diffuser and the exhaust passage of mouth and source of the gas of externally only having high-tension line, guaranteed the safety that high-tension line break-make is controlled.
Accompanying drawing explanation
Fig. 1 is the structural representation of the high voltage connector that provides of prior art;
Fig. 2 is the structural representation of the automotive high voltage line road contactless switch that provides of the utility model;
Fig. 3 is the structural representation of the arc suppressing apparatus that provides of the utility model;
Wherein, 1-two-position four-way solenoid valve, 2-cylinder, 21-piston, 22-the first gas compartment, 23-connecting rod, 24-the second gas compartment, 25-retracing spring, 3-high-voltage direct current switch, 31-movable contact end, 32-stationary contact end, 4-high-tension line, 5-free air diffuser, 6-air bottle, 7-exhaust passage, 8-arc suppressing apparatus, 81-arcing chamber, 82-arc extinguishing grid pieces, 9-insulated shell.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Fig. 2 shows the structural representation of the automotive high voltage line road contactless switch that the utility model provides, and for convenience of explanation, has only provided the part relevant to the utility model in figure.
Automotive high voltage line road contactless switch comprises the two-position four-way solenoid valve 1 being electrically connected to the entire car controller of automobile and the cylinder 2 being communicated with described two-position four-way solenoid valve 1, described two-position four-way solenoid valve 1 is provided with valve seat, magnet coil, spool and four air flue port a, b, P, T, described cylinder 2 is provided with a piston 21, described piston 21 is divided into the first gas compartment 22 by described cylinder inner cavity and is provided with the second gas compartment 24 of connecting rod 23, described connecting rod 23 extends described the second gas compartment 24 from described piston 21, the part that described connecting rod 23 is positioned at described the second gas compartment 24 is arranged with retracing spring 25, described connecting rod 23 extends the movable contact end 31 of one end connection high-voltage direct current switch 3 of described the second gas compartment 24, the stationary contact end 32 of described high-voltage direct current switch 3 is connected on high-tension line 4,
Wherein, described port a is communicated with air bottle 6 by free air diffuser 5, and described port b is communicated with ambient atmosphere by exhaust passage 7, and described port P, T are communicated with by the first gas compartment 22 and second gas compartment 24 of cylinder 2 described in gas passage respectively.
As seen in Figure 1, entire car controller is carried control system of switching on or off electricity instruction by circuit to two-position four-way solenoid valve 1, the action of control cylinder 2, thus realize to the closure of high-voltage direct current switch 3 and disconnection, wherein:
Two-position four-way solenoid valve 1 is common four-way cock, and it has two working positions, is designated as the first working position and the second working position, it has four air flue port a, b, P, T, and wherein, reference is as Fig. 1, when the first working position, between a, P, be communicated with, between b, T, be also communicated with, when at the second working position, between a, T, be communicated with, between b, P, be communicated with, its concrete realization does not repeat them here yet, but not in order to limit the utility model.
In the utility model, high-voltage direct current switch 3 is encapsulated in arc suppressing apparatus 8, and as shown in Figure 3, arc suppressing apparatus 8 comprises arcing chamber 81 and the longitudinal arc extinguishing grid pieces 82 arranging that is arranged on described movable contact end 31 and stationary contact end 32 surroundings, wherein:
In the situation that there is large electric current in high-tension line, due to the characteristic of inductance in electrical motor, in the moment of movable contact end 31 and 32 disconnections of stationary contact end, there will be electric arc, arc suppressing apparatus 8 draws in the electric arc of generation between arc extinguishing grid pieces 82, and long arc is cut off into several short electric arc, and its down quench is extinguished.
In the utility model, two-position four-way solenoid valve 1, cylinder 2 and high-voltage direct current switch 3 are encapsulated in insulated shell 9, and wherein, this insulated shell 9 can adopt the crosslinked polyethylene of high voltage withstand class.Automotive high voltage line road contactless switch externally only has input end and mouth, the control input end of entire car controller and free air diffuser and the exhaust passage of mouth and source of the gas of high-tension line, has guaranteed the safety that high-tension line break-make is controlled.
In the utility model, air bottle 6, exhaust passage 7, free air diffuser 5 and cylinder 2 are together as the propulsion source of high-voltage direct current switch 3, compare the mode of electromagnet and armature, its safety factor is high, and, use two-position four-way solenoid valve 1, the break-make of high-voltage direct current switch 3 is all used high-pressure air source to do power, has increased speed and the reliability of switch on and off.
For the ease of understanding, the content providing in conjunction with above-described embodiment, the following working process that provides the automotive high voltage line road contactless switch that the utility model provides:
(a), when the corresponding stitch output of entire car controller high level, the magnet coil of two-position four-way solenoid valve produces the action that electromagnetic attraction is controlled spool, make two-position four-way solenoid valve in the first working position, between a, P, be communicated with, b, T passage are connected, pressurized air enters the first gas compartment 22 of cylinder 2 by passage a, P, the gas of the second gas compartment 24 of cylinder 2 is discharged by passage b, T, piston 21 drives movable contact end 31 to move downward by connecting rod 23, contact high tension loop conducting with stationary contact end 32.
(b), when the corresponding stitch output low level of vehicle control unit controls, the electromagnetic valve power-off of two-position four-way solenoid valve, electromagnetic force disappears, spool moves under the effect of retracing spring 25 power, a, T passage are connected, b, P passage are connected, pressurized air enters in the second gas compartment 24 of cylinder 2 by passage a, T, the pressure gas of the first gas compartment 22 of cylinder 2 is discharged by passage b, P, piston 21 drives movable contact end 31 upward movements by connecting rod 23, separated with stationary contact end 32, high tension loop disconnects.
The automotive high voltage line road contactless switch that the utility model provides has following technique effect:
(1), only when having the energising of pressurized air and two-position four-way solenoid valve, high-voltage direct current switch is closure, makes high voltage circuit conducting; When disconnecting pressurized air or stopping powering to two-position four-way solenoid valve, circuit can disconnect automatically, has increased a safety guard-safeguard input;
(2), utilize pressurized air as propulsion source safe ready, break-make is reliable;
(3), use two-position four-way solenoid valve, the break-make of high-voltage direct current switch is all used high-pressure air source to do power, has increased speed and the reliability of switch on and off;
(4), high-voltage direct current switch is with arc suppressing apparatus, can adapt to the quick break-make of high-voltage large current circuit, safe and reliable;
(5), the unified encapsulation of the structure of automotive high voltage line road contactless switch, externally only have high input voltage mouth, control inputs mouth and source of the gas input/output terminal, insulated shell is used crosslinked polyethylene insulation material, installs and uses safe ready;
(6), compressed-air power is stronger than traditional electromagnetic force power, can avoid the problems such as the stuck or adhesion fault of the machinery of conventional high-tension DC contactor;
(7) two-position four-way solenoid valve is only controlled compressed-air actuated direction, and consuming electric power is lower.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (4)
1. an automotive high voltage line road contactless switch, it is characterized in that, described automotive high voltage line road contactless switch comprises the two-position four-way solenoid valve (1) being electrically connected to the entire car controller of automobile and the cylinder (2) being communicated with described two-position four-way solenoid valve (1), described two-position four-way solenoid valve (1) is provided with valve seat, magnet coil, spool and four air flue port a, b, P, T, described cylinder (2) is provided with a piston (21), described piston (21) is divided into the first gas compartment (22) by described cylinder (2) inner chamber and is provided with second gas compartment (24) of connecting rod (23), described connecting rod (23) extends described the second gas compartment (24) from described piston (21), the part that described connecting rod (23) is positioned at described the second gas compartment (24) is arranged with retracing spring (25), described connecting rod (23) extends the movable contact end (31) of one end connection high-voltage direct current switch (3) of described the second gas compartment (24), the stationary contact end (32) of described high-voltage direct current switch (3) is connected on high-tension line (4),
Wherein, described port a is communicated with air bottle (6) by free air diffuser (5), described port b is communicated with ambient atmosphere by exhaust passage (7), and described port P, T are communicated with by the first gas compartment (22) and second gas compartment (24) of cylinder (2) described in gas passage respectively.
2. automotive high voltage line according to claim 1 road contactless switch, is characterized in that, described high-voltage direct current switch (3) is encapsulated in arc suppressing apparatus (8).
3. automotive high voltage line according to claim 2 road contactless switch, it is characterized in that, described arc suppressing apparatus (8) comprises arcing chamber (81) and the longitudinal arc extinguishing grid pieces (82) arranging that is arranged on described movable contact end (31) and stationary contact end (32) surrounding.
4. automotive high voltage line according to claim 1 road contactless switch, is characterized in that, described two-position four-way solenoid valve (1), cylinder (2) and high-voltage direct current switch (3) are encapsulated in insulated shell (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420237863.6U CN203854523U (en) | 2014-05-09 | 2014-05-09 | Automobile high-voltage line contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420237863.6U CN203854523U (en) | 2014-05-09 | 2014-05-09 | Automobile high-voltage line contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203854523U true CN203854523U (en) | 2014-10-01 |
Family
ID=51604398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420237863.6U Expired - Fee Related CN203854523U (en) | 2014-05-09 | 2014-05-09 | Automobile high-voltage line contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203854523U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106847603A (en) * | 2017-02-13 | 2017-06-13 | 武汉大学 | Gas type high-voltage charging is switched |
-
2014
- 2014-05-09 CN CN201420237863.6U patent/CN203854523U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106847603A (en) * | 2017-02-13 | 2017-06-13 | 武汉大学 | Gas type high-voltage charging is switched |
| CN106847603B (en) * | 2017-02-13 | 2018-11-13 | 武汉大学 | Gas type high-voltage charging switchs |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141001 |