CN205230943U - Multi -functional magnetic -type switch - Google Patents

Abstract

The utility model provides a constitutions such as sound contact that multi -functional magnetic -type switch, by switch shell, magnetic force seesaw mechanism and symmetry. Wherein have the UM of calling that type structure, the downside of its characterized in that seesaw is equipped with the sheetmetal parallel with the seesaw, the U -shaped support that the level was placed, the lower part is fixed on the terminal, upper portion that seesaw sheetmetal concave part emboliaed U type support, other has a M type sheetmetal, the concave part contact seesaw sheetmetal middle part of upwards bounceing, the lower part and with the electric intercommunication of terminal, suitably clip from top to bottom, just as resistor parallel with, reach and reduce seesaw middle part sheetmetal contact resistance when rotating. Can adopt UI type structure equally, the M sheetmetal is replaced by I metal patchcord, and a beading is in seesaw, another directness and the electric intercommunication of terminal. Consequently when having stopped the seesaw and rotating, the phenomenon of drawing the arc during rotation that may appear has improved the performance of this type of waterproof explosion -proof dustproof switch greatly, has prolonged life.

Description

Multifunctional magnetic-force formula mains switch

The utility model relates to one and has the multifunctional magnetic-force formula mains switches such as waterproof anti-explosion, reduces the resistive technologies between seesaw type fixed axis and rotation seesaw and method.

Invented by the present inventor, external magnetic type waterproof anti-explosion Multipurpose electric source switch, authorized Chinese utility model patent (86206167.8), and authorized on the basis of relevant (93223442.9) and (99243077.1), need reform, reduce the resistance of whole switch, make it reach more practical and resistance to electricity consumption and to clamor performance.

External magnetic type waterproof anti-explosion switch, when full envelope, utilizes magnetic force penetration, rotates with the magnet of the seesaw type outside obturator, control the rotation of the magnet on enclosure interior seesaw, thus reach the object controlling current switching.Between the winding board of inner rotation and fixing binding post, have employed the U-shaped support of horizontal positioned.Electric current flows into U-shaped support by binding post, then imports winding board into, and electric current closing by two contacts, imports another binding post into, thus realize the action of electric break-make.

No matter adopt the U-shaped frame of horizontal positioned, or the both-end support improved afterwards and other method, all cannot solve completely to need to conduct electricity under rotation situation between axle and seesaw between contact portion, be difficult to very closely sealed and resistance is larger irrationality.Thus the rotating part of seesaw type mechanism is caused easily to be corroded by big current stuck.

Join the structure chart that diagram 2, Fig. 2 is the major part of the seesaw type of above-mentioned prior art below.In Fig. 2,4 is the metallic conductors on seesaw, and 5 is fixing U-shaped metallic conductors, and 3 is the metals connecting binding post.3 are fixed on housing, and 5 are fixed on 3, and 4 is that middle part has arcuate socket, inserts the U upper end in 5.When shell outer magnet is lifted up, shell inner magnet is under the effect of magnetic deviation, and what also occur lifts up simultaneously.Electric current, by binding post, enters 3, through 5, then enters 4, until contact conducting.Seesaw type mechanism in above-mentioned housing due to: 1. the arcuate socket curved in the middle of its axle 5 and 4 sheet metal, place restrictions on by processing and cooperatively interact more loosening, namely having larger space each other, the contact-making surface cooperatively interacted is little, and resistance is larger.2., when seesaw rotates, the contact-making surface of 4 and 5 rotates, and resistance will change.Like this when electric current is larger, easily cause because local current densities is too high, the contact-making surface of ablation 4 and 5, affect the rotation of built-in seesaw work mechanism.Facts have proved, for the seesaw type mechanism of the prior art shown in Fig. 2, when electric current is greater than 10A, easily rotary part place causes ablation and makes axle rotate inefficacy in fig. 2.

The purpose of this utility model is to provide a kind of rotating part conduction that can make the built-in seesaw type structure of housing, realize the method reducing resistance, the U conducting device of the original horizontal positioned of sheet metal on conducting seesaw, increase an other road conducting device, the magnetic-type Water-proof, explosion-proof power switch of the upper and lower conducting of a kind of seesaw is provided.This switch is the further improvement to the multinomial patent of my original application.Shown in Fig. 3, it have employed the U-shaped support of horizontal positioned, and lower end is fixed on metallic conductor, and upper end is enclosed in the metallic conductor of the bent intermediate camber bottom seesaw; The metallic conductor 3 fixed in lower end is again fixed the 6A sheet metal of a M type, the metallic plate 4 of the middle part of the M type bent intermediate camber upwards bottom Elastic Contact seesaw.So just form the mechanism that on a kind of seesaw, metallic plate can be energized up and down when rotating.Fig. 3 (6A1) is the front view of M type metal clips, and Fig. 3 (6A2) is the perspective view of M type shell fragment.Upwards there is certain elasticity in the middle part of such M type, the pressure of the contact-making surface on original seesaw sheet metal and U-shaped support can be increased, reach the object reducing resistance.And M type shell fragment itself is again increase electric current admittance.If the resistance of sheet metal and U-shaped axle rotating part is R on former seesaw ₁, increase M type dress system and can reduce R ₁, become R ^/ ₁.Be so R with the resistance of seesaw contact-making surface in the middle part of M type shell fragment ₂, be equivalent to R ₂with R ^/ ₁all-in resistance R in parallel, according to the character R < < R of parallel circuits ₁.Therefore, this mechanism is referred to as UM type mechanism, effectively can reduce the resistance that this kind of magnetic switch rotating part contact-making surface needs conduction, can effectively improve the phenomenon of arc discharge that rotating shaft may occur, cause the situation of ablation, thus extend the life-span of magnetic switch.Due to the suitable configuration of magnetic force and pressure, seesaw still can rotate neatly, can not affect the performance of switch.

In like manner as shown in Figure 4, if do not adopt M type shell fragment 6A, change the metallic cords 6B of I type suitable length, upper end is welded on the center 4 of the sheet metal bottom seesaw, and lower end electrical connection is at fixing metal electric conductor 3.Metal due to 6B has certain extensibility, can not affect the rotation of seesaw.Therefore, this mechanism is referred to as UI type mechanism.

Multifunctional magnetic-force mains switch of the present utility model comprises:

The switch case of a sealing.To be located on described switch case base and with at least one first binding post that can electrically link up in described switch case; To be located on described switch case base and with at least one second binding post that can electrically link up in described switch case; To be located in described switch case and with the fixed contact of described first binding post electrical communication; To be located in described switch case and with the seesaw mechanism of described second binding post electrical communication; Described seesaw mechanism is made up of a seesaw and a U support supporting seesaw movements.The both ends of the surface of lifting up up and down of the upper side of described seesaw are respectively established a magnetic material brake component.Outside the described switch case relative with described magnetic material brake component with described magnetic material brake component generation magneticaction time, the corresponding seesaw of described seesaw type mechanism is rotated, thus realize the control that electric on-off action is subject to magnetic material between the end contact and described fixed contact of described seesaw downside.It is characterized in that: the described downside of described seesaw is provided with at least one UM type mechanism, M type sheet metal Ao Qi center pops up, contact the arc place at metallic plate center, described seesaw downside, the bipod of M type is welded on the metal derby of connection binding post, forms UM type mechanism.Or be welded on the arc place of described seesaw with a metallic cords one end, one end is welded on the metal derby of connection binding post, forms UI type mechanism.The utility model switching device as constructed as above, it is the further improvement to the multinomial utility model patent that I had previously obtained, the magnetic force not only maintaining original switch penetrates the characteristic of totally-enclosed switch, and the conductive resistance between seesaw sheet metal and fixing metal axle is reduced greatly, not easily produce spark, and the contact of power on/off is in the full envelope of housing, the pernicious gas that between contact, arcing produces is prevented to leak.Totally-enclosed due to housing, penetrates control with magnetic force, makes whole switch body play the dust-proof effect of waterproof anti-explosion, reach public place as places such as hospital, hotel, office, schools, when every hygienic conditions index is good, the panel of mains switch also can disinfection, and erasable can be washed.The domestic switch made, good hand touch when not only using, lightly flexibly, and it is explosion-proof to be more suitable for having natural gas occasion to carry out between kitchen, the waterproof action of a lot of occasion of toilet steam.Making industry beginning, is also a kind of brand-new waterproof, explosion-proof, dust-proof mains switch.According to the magnetic-type switch of the utility model design, not only structure is simple but also be also easy to manufacture and assembling in technique.

The utility model is described in detail below in conjunction with accompanying drawing illustrated embodiment.

Fig. 1 is the structural principle cut-away view of an embodiment of switching device of the present utility model.

Fig. 2 is the seesaw central cross-section figure of the device of prior art.

Fig. 3 is the schematic cross-section at the seesaw center of the utility model UM type structure.

M sheet metal front view in the utility model UM type structure in Fig. 3 (6A1).

M sheet metal perspective view in the utility model UM type structure in Fig. 3 (6A2).

Fig. 4 is the sectional view at the seesaw center of the utility model UI type structure.

See the structure principle chart that Fig. 1, Fig. 1 are the utility model seesaw upper and lower admittance formula magnetic force waterproof anti-explosion switch one embodiments.This is a kind of single-pole single-throw switch (SPST), the composition such as seesaw magnetic control part 10 outside the contact 8 of its main Packed switch case 9, first binding post 1, second binding post 2, metal column 3, seesaw bottom metal sheet 4, the U-shaped conducting bracket 5 of metal, metal M shape conducting strip 6, seesaw upper magnet 7, switch, seal casinghousing.The switch case 9 of sealing is made up of insulating material.Two binding posts 2 are arranged on the base of switch case 9, and they are injection-moulded in switch case.Metal column 3 (can be used for fixing U-shaped support 5), M type sheet metal 6, U-shaped support 5 and seesaw bottom metal sheet 4 form the upper and lower conductive mechanism of UM type seesaw.

On this seesaw, UM mechanism is arranged on metal column 3 in switch 9, and the second binding post 2 electrical communication.The fixed contact of 8 and 3 and 1 electrical communication, the moving contact of 8 is arranged on 4.7 two ends being arranged on springboard.There is the magnetic force official post 4 of seesaw upper magnet 7 in seesaw magnetic control part and housing to rotate outside housing 9, make dynamic and static two contacts on 8 combine or be separated.

Inventive point of the present utility model is the improvement to the seesaw mechanism in original Fig. 2.Referring to Fig. 3 and Fig. 4, they are structure charts of UM and UI type seesaw type mechanism of the present utility model.In Fig. 3, seesaw bottom metal sheet top is connected with the U-shaped seating electrical of metal, and its underpart and M type metal clips are electrically connected, and M type lower end is fixed on metal column 3.In Fig. 4, seesaw bottom metal sheet top is connected with the U-shaped seating electrical of metal, its underpart welding I type metallic cords, and with metal column 3 electrical communication.

Seesaw type mechanism as constructed as above, because sheet metal on seesaw 4 can import electric current from upper and lower, M type sheet metal 3 is flexible, and the size that axle 5 and sheet metal 4 add man-hour is easy to control.Make not interspace during rotation simultaneously, the contact area of conducting electricity when greatly increasing rotation.The rotation conducting position stopping seesaw type mechanism is thus beated the phenomenon of arcing.Said structure feature of the present utility model makes the resistance during energising of the entirety of switch reduce, and extends the whole service life of switch.

According to the seesaw type mechanism of above-mentioned two embodiments, as long as suitably increase binding post 1 and corresponding fixed contact 8 thereof and metal column 3, can multiple combination be carried out, singly throw, the switch of the different purposes such as hilted broadsword, double-throw, double-pole, double-throw, double-pole single-throw (D.P.S.T.) and switch combination.According to seesaw of the present utility model upper and lower admittance formula magnetic force waterproof anti-explosion switch; can inflated with nitrogen or other inert gas in enclosed switch housing 9 further; the arc extinction performance of further raising switch, protects the not easily ablation of each dynamic and static contact, thus improves the useful life of switch further.

Claims (2)

1. a multifunctional magnetic-force formula mains switch, it comprises the device (4) of the break-make power supply with seesaw mechanism and the handling means (10) of magnetic material is housed, its feature is provided with and comprises housing (9), described power on/off device (4) is installed in housing (9), U-shaped support 5 electrical communication of and horizontal positioned upper described seesaw bottom metal sheet (4), descend and M type sheet metal (6A) recess electrical communication, the UM type mechanism described in composition.

2. the waterproof anti-explosion switch as described in claim 1, or be above communicated with horizontally U-shaped 5 seating electrical described seesaw bottom metal sheet (4), lower and I type metallic cords (6B) electrical communication, the UI type mechanism described in composition.