CN2126184U - Safety cut-off for vehicle mains - Google Patents

Abstract

The utility model discloses a safety cut-off for the general power supply of a vehicle, comprising a magnetic switch, an insulating gasket, a switch-on conductive body, a self-return mechanism, a protecting cover, an ignition switch, and a converting switch. When the vehicle stops and needs the engine to stop and extinguish, the ignition switch can be conveniently turned off for cutting off the general power supply of the vehicle. If the light needs to be turned on after the vehicle stops, the other switch can be switched on the power supply. Compared with the prior art, the utility model has the advantages of reasonable structure, high safety, less power consumption, and strong versatility; the utility model can be is widely used for various vehicles, cranes, tractors, etc.

Description

Safety cut-off for vehicle mains

The utility model belongs to vehicle circuit accessory, and the various power actuated vehicles that particularly use storage battery to make startup power supply can disconnect the safe cutout relay of general supply when Parking.

For safety and saving storage battery electric energy, various power actuated vehicles are wanted the cut off power supply when Parking, and modal power cut-off method is that a single-file switch is installed in operator's compartment.This switch needs to install separately and operation separately, has not only bothered but also agree forget power cutoff.What have can only disconnect starter to the circuit between the ignition lock, can not disconnect full car general supply.So when long-time Parking is unmanned on the scene, not only expend the storage battery electric energy, and can produce spark because of the power lead bonding short circuit of wearing and tearing, cause that fire burns vehicle, this type of accident happens occasionally.This problem more and more causes people's attention.Retrieved this type of battery isolator control in the patent documentation in recent years.For example, " electronic type automobile total power switch circuit " (number of patent application 87206149) and " a kind of automobile-used electromagnetic power-supply general switch " (number of patent application 88204649).Though the former has breakerless advantage, but its high-power thyristor conducting state, can produce bigger tube voltage drop under the particularly big current conditions, influence the current consumer normal operation, and need distinguish two kinds of situations of storage battery minus earth or positive ground when installing and using, its three driving switch operation is not too convenient.The latter is a contact switch, and its advantage is that contact voltage drop is very little, and its weak point is to have adopted relay and diode, easy break-down, and increased cost of product, and it is only applicable to ignition locks such as JK424, and field of application is not too extensive.

The purpose of this utility model just is to overcome the above-mentioned shortcoming and defect part of prior art, provide a kind of structure more reasonable, fitting operation is convenient, and is more safe and reliable, cost is lower, is applicable to the general supply safety cutout relay of various power actuated vehicles, trac. and various ignition locks thereof.

Above-mentioned purpose of the present utility model is achieved through the following technical solutions.It mainly comprises magnet-switch, insulating mat, contact electric conductor, automatic resetting mechanism, guard shield, ignition lock and change-over swith etc.Wherein, magnet-switch mainly is made up of magnetic coil, electromagnetic core and lower cover.Insulating mat comprises major insulation pad, supplementary insulation pad, goes up insulating mat and following insulating mat.The contact electric conductor comprises the connection dish, introduces and connect plate and draw the connection plate.Automatic resetting mechanism mainly by top forcing screw, holddown spring attic base, compress regulating spring, holddown spring pad, electromagnetic core pull back spring and pull back spring seat and form.The magnet coil of magnet-switch is with iron core, automatic resetting mechanism and contact electric conductor and all be contained within the guard shield, and ignition lock and change-over swith are outside guard shield.The outwards vertical bending of guard shield end opening is introduced with drawing and is connected the plate vertical inwards bending in upper end, the then outwards vertical bending in lower end.The punching that matches of their following bending part and lower cover diameter is fixedly mounted on vehicle frame or suitable part together, and has following insulating mat will connect plate to insulate.Introduce to connect exposed section, plate lower end and join with utmost point of lead and storage battery and the end of a thread of magnet coil, another the end of a thread and the change-over swith of magnet coil join.Drawing the exposed section, lower end of connecting plate joins with lead and vehicle bonding.

The electromagnetic core automatic resetting mechanism is contained in the first half of electromagnetic core.Pull back spring is between magnet coil and the pull back spring seat, it above the pull back spring seat major insulation pad, it above the major insulation pad connection dish, be supplementary insulation pad, holddown spring pad successively upwards again, compress regulating spring, holddown spring attic base, top is a forcing screw, be contained in the tapped bore of electromagnetic core top, be used for the regulating spring equilibrium of pressure, and make the connection dish with introduction, draw the certain pressure of maintenance when connecting the plate top and contact.

Magnet coil is contained in the latter half of electromagnetic core.Its upper surface and introduction, draw between the vertical bending of connecting plate insulating mat is housed, the interior shape of its lower surface and lower cover matches.The centre hole of lower cover and the bottom of electromagnetic core match, and certain interval is arranged.

The utility model and prior art contrast, its major advantage is: not only physical construction is more reasonable, and has saved electronic components such as relay, thyristor, diode, has both provided cost savings, improved functional reliability again, installation, circuit connection, operation and maintenance are all convenient; It both can be used for various automobiles, crane, can be used for various trac.s and similar motor device again, and do not lighted a fire switching mode number and the restriction of storage battery negative pole (or anodal) bonding; Itself power consumption is few, is unlikely to the storage battery dividing potential drop is influenced the normal operation of current consumer.

Accompanying drawing is structural representation of the present utility model and fundamental diagram.

Details are as follows to embodiment of the present utility model in conjunction with the accompanying drawings.In the accompanying drawing, the 1st, the original starter of vehicle, the 2nd, introduce and connect plate, the 3rd, electromagnet pull back spring seat, the 4th, major insulation pad, the 5th, supplementary insulation pad, the 6th, forcing screw, the 7th, holddown spring attic base, the 8th, compress regulating spring, the 9th, holddown spring pad, the 10th, pull back spring, the 11st, connection dish, the 12nd, draw the connection plate, the 13rd, last insulating mat, the 14th, electromagnetic core, the 15th, magnet coil, the 16th, guard shield, the 17th, lower cover, the 18th, following insulating mat, E is a storage battery, K ₁Be the original ignition lock of vehicle, K ₂Be automobile general-duty two driving switch.Mutual alignment relation and the wiring relation of each several part is all with shown in the accompanying drawing.Wherein, the negative pole of first and storage battery E of two lines of magnet coil 15 joins another the end of a thread and K switch ₂The D point join.Introduce to connect plate 2 and also join, draw and connect plate 12 and join with vehicle bonding place with the negative pole of storage battery E.K switch ₂The B point meet original ignition lock K ₁Ignition system or start system use device equipment, the i.e. A of switch the end of a thread point.K switch ₂The C point connect the lead-in wire of storage battery E positive pole.

The working process of this cutout relay is: when needing fire an engine, with K switch ₂Be allocated to the B shelves, and with ignition lock K ₁Open (promptly connecting), the coil 15 of magnet-switch is an energized.Under the electromagnetic force effect, the elastic force that electromagnetic core 14 overcomes pull back spring 10 moves down, and pulling connection dish 11 moves down, and makes connection dish 11 connect plate 2 and 12 and connect simultaneously with introducing and draw.Because electromagnetic force and the double action that compresses regulating spring 8 make the good and firm balance of its contact, thereby connect the bonding ground wire of storage battery E automatically reliably, have also just connected the general supply of full vehicular electrical appliance.When after stopping, needing to stop working to stall, conveniently with ignition lock K ₁Close (i.e. disconnection), the power supply of magnet coil 15 promptly is cut off, and electromagnetic force disappears, and under the effect of pull back spring 10, electromagnetic core 14 is return upwards, makes connection dish 11 and introduce and draw connection plate 2 and 12 to disconnect, and full car general supply is promptly cut off automatically.If temporary term stop in the night travel way, in the time of need opening viewing-wide lights or check fault, should be with K switch ₂Be allocated to the C shelves, can connect full car general supply, the K switch of not lighted a fire ₁Control.Unmanned on the scene and don't need turn on light the time in normal driving or long-time Parking, K switch ₂Must be in the B gear.

Claims (3)

1, gross vehicle power safety cutout relay, comprise magnet-switch, insulating mat, the contact electric conductor, automatic resetting mechanism, guard shield, ignition lock and change-over swith, it is characterized in that magnet-switch is by magnetic coil, electromagnetic core and lower cover are formed, insulating mat comprises the major insulation pad, the supplementary insulation pad, last insulating mat and following insulating mat, the contact electric conductor comprises the connection dish, introduce and connect plate and draw the connection plate, automatic resetting mechanism is by the top forcing screw, the holddown spring attic base, compress regulating spring, the holddown spring pad, electromagnetic core pull back spring and pull back spring seat are formed, the outwards vertical bending of guard shield end opening, introduce with drawing and connect the plate vertical inwards bending in upper end, the outwards vertical bending in lower end, the punching that matches of their following bending part and lower cover diameter, be fixedly mounted on vehicle frame or suitable part together, and there is following insulating mat will connect the plate insulation, introduce connecting exposed section, plate lower end joins with utmost point of lead and storage battery and the end of a thread of magnet coil, another the end of a thread and the change-over swith of magnet coil join, and draw the exposed section, lower end of connecting plate and join with lead and vehicle bonding.

2, gross vehicle power safety cutout relay according to claim 1, it is characterized in that the electromagnetic core automatic resetting mechanism is contained in the first half of electromagnetic core, pull back spring is between magnet coil and the pull back spring seat, it above the pull back spring seat major insulation pad, it above the major insulation pad connection dish, be supplementary insulation pad, holddown spring pad successively upwards again, compress regulating spring, holddown spring seat, top is a forcing screw, is contained in the tapped bore of electromagnetic core top.

3, gross vehicle power safety cutout relay according to claim 1, it is characterized in that magnet coil is contained in the latter half of electromagnetic core, its upper surface and introduction, draw between the vertical bending of connecting plate insulating mat is housed, the interior shape of its lower surface and lower cover matches, the centre hole of lower cover and the bottom of electromagnetic core match, and certain interval is arranged.

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