CN202003889U

CN202003889U - Silver contact-free high-power switch

Info

Publication number: CN202003889U
Application number: CN2011201130998U
Authority: CN
Inventors: 杨家明; 杨峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-04-18
Filing date: 2011-04-18
Publication date: 2011-10-05
Anticipated expiration: 2021-04-18

Abstract

The utility model discloses a silver contact-free high-power switch, which comprises a shell, a key hinged above the shell and a bottom cover buckled at the bottom of the shell. A neon lamp holder with a neon lamp is buckled at the bottom of the key. Two support legs and contact foots opposite to the support legs are inserted on the bottom cover. The upper ends of the support legs are bent to form fulcrums. Two fixed contacts are arranged on the contact foots. Two pairs of parallel hinged frames are arranged at the bottom of the neon lamp holder. The bottoms of the hinged frames are hinged with a springboard respectively. Each springboard is pressed against the fulcrums of corresponding support legs. One end of the springboard is a moving contact opposite to the corresponding fixed contact. The moving contact is formed by bending an arc shape on the end part of the springboard. Operating points of the moving contacts of the high-power switch are not pressed against the fixed contacts at first, and are difficult to damage in arching so as to bear the passing-through of heavy current and prolong the service life of the switch; moreover, four silver contacts are saved, so the high-power switch greatly reduces the cost, and has vast market prospect.

Description

The high power switch of no silver contact

Technical field

The utility model relates to a kind of appliance switch, a kind of specifically switch of the no silver contact by high-power electric current.

Background technology

Existing appliance switch all is by pressing the break-make that button is beated springboard to realize appliance switch, because moving contact can produce the arcing phenomenon with fixed contact when contacting, easily moving contact and fixed contact being caused damage.Silver contact can be installed by most of for this reason producer on moving contact and fixed contact, impaired because silver contact is not easy when arcing, thereby improves switch performances.But the silver contact price is higher, and it is bigger to account for the switch manufacturing cost, even and if used silver contact, in use after arcing repeatedly, also can't pass through high-power electric current.By my application, disclosed in Patent Office of the People's Republic of China on November 12nd, 2008, Granted publication number is " a kind of conducting terminal is the seesaw type switch of level bending " of " CN201149831Y ", it comprises the housing of being made up of drain pan and base plate, be positioned at the button of case top, the neon lamp seat of button below passes through main spring, steel ball compresses mutually with springboard on placing the support terminal, on the moving contact and the fixed contact on the contact terminal of springboard end, following corresponding, described contact terminal, neon lamp terminal difference straight cutting is in the storage tank of base plate correspondence, the pin that is positioned at floor below is yearned for both sides level bending respectively mutually, support terminal level from left to right is plugged in the groove that is opened in the base plate front and back, its pin is stretched on the place ahead of base plate, and the inwall of drain pan is provided with the crossette that offsets and press with each conducting terminal metal end face.The contact terminal of this structure is provided with silver contact, and production cost is higher, and its working point can directly produce the arcing phenomenon, and is impaired easily, just can't pass through high-power electric current after therefore repeatedly using.

The utility model content

The purpose of this utility model is at the defective of above-mentioned prior art and deficiency, for people provide a kind of switch by high-power electric current, no silver contact and long service life.

Technical solution adopted in the utility model is for achieving the above object: the high power switch of this no silver contact comprises housing, be articulated in the button of housing top and spiral-lock in the bottom of housing bottom, the neon lamp seat that the band neon lamp is arranged in the bottom of button spiral-lock, on bottom, be fitted with two stent foots and the contact pin relative with stent foot, the upper end bending of described stent foot forms fulcrum, and the contact pin is provided with two fixed contacts, the bottom of described neon lamp seat is provided with two pairs of body cradles arranged side by side, the bottom-hinged of every pair of body cradle has a springboard, every springboard offsets with the fulcrum of corresponding stent foot, the compression spring is installed between every pair of body cradle, this compression spring offsets by the upper surface of traveller and springboard, one end of springboard is the moving contact relative with fixed contact, and this moving contact is bent to form by springboard end arc.

The center of described fixed contact is to upper process.

Be provided with isolated column in the described housing, this isolated column is between two pairs of body cradles of neon lamp seat bottom.

Described neon lamp is connected by compressing spring and traveller and springboard behind series resistor.

Offer loophole on the described button, in loophole, be provided with the neon lamp cover.

The working point of moving contact of the present utility model is not at first to offset with fixed contact, is difficult for sustaining damage when arcing, therefore can bear big electric current and pass through, and has also prolonged the useful life of switch.Simultaneously can also omit four silver contacts, greatly reduce the cost of switch, and most of part be all general with former switch, can additionally not increase cost, and good market prospects are arranged.

Description of drawings

Fig. 1 is STRUCTURE DECOMPOSITION figure of the present utility model.

Fig. 2 is the mounting structure schematic diagram of neon lamp seat and springboard.

Cutaway view when Fig. 3 disconnects for the utility model.

Cutaway view when Fig. 4 connects for the utility model.

Embodiment

As shown in Figure 1 and Figure 2, the utility model is a kind of high power switch that does not have silver contact, it comprises housing 9, be articulated in the button 1 of housing 9 tops and spiral-lock in the bottom 13 of housing 9 bottoms, spiral-lock has neon lamp seat 5 in the bottom of button 1, neon lamp 3 and resistance 4 are installed in neon lamp seat 5, when pressing button 1, neon lamp seat 5 is swung synchronously with button 1.Be fitted with two stent foots 10 and the contact pin 12 relative with stent foot 10 on bottom 13, the upper end bending of described stent foot 10 forms fulcrum 10.1, and contact pin 12 is provided with two fixed contacts 12.1, and the center of this fixed contact 12.1 is to upper process.When stent foot 10 linked to each other with contact pin 12, circuit was connected.The bottom of described neon lamp seat 5 is provided with two pairs of body cradles arranged side by side 5.1, the bottom-hinged of every pair of body cradle 5.1 has a springboard 8, every springboard 8 offsets with the fulcrum 10.1 of corresponding stent foot 10, and during the left and right swing of neon lamp seat 5, the fulcrum 10.1 that springboard 8 remains with stent foot 10 offsets.Compression spring 6 is installed between every pair of body cradle 5.1, and this compression spring 6 offsets by traveller 7 upper surface with springboard 8, compresses spring 6 and can give springboard 8 downward thrust.One end of described springboard 8 is the moving contact 8.1 relative with fixed contact 12.1, and this moving contact 8.1 is bent to form by springboard 8 end arcs, has omitted silver contact.Because the working point of moving contact 8.1 is not at first to offset with fixed contact 12.1, so the working point is difficult for sustaining damage when arcing.Be provided with isolated column 11 in the described housing 9, this isolated column 11 separates two springboards 8, two stent foots 10 and two fixed contacts 12.1 between two pairs of body cradles 5.1 of neon lamp seat 5 bottoms, prevents short circuit.Described neon lamp 3 is connected with springboard 8 by compression spring 6 and traveller 7 in series resistor 4 backs, therefore when the moving contact 8.1 of springboard 8 offseted with fixed contact 12.1, neon lamp 3 will be luminous, thereby reflect the circuit on intuitively, when circuit disconnected, neon lamp 3 will extinguish.Offer loophole on the described button 1, in loophole, be provided with neon lamp cover 2, see through neon lamp cover 2 and can see whether neon lamp 3 is luminous.

As shown in Figure 3, Figure 4, when button 1 left end was pressed, springboard 8 slided into the right side, and moving contact 8.1 separates with fixed contact 12.1, and this moment, switch disconnected, and under the 6 restoring force effects of compression spring, springboard 8 offsets with the fulcrum 10.1 of stent foot 10 all the time.When button 1 right-hand member was pressed, springboard 8 slided into the left side, slided behind the moving contact 8.1 contact fixed contacts 12.1 again, offseted fully until moving contact 8.1 and fixed contact 12.1, at this moment switch connection.Because the working point of moving contact 8.1 is not at first to offset with fixed contact 12.1, be difficult for when arcing, sustaining damage, therefore can bear big electric current and pass through, also prolonged the useful life of switch.

Claims

1. high power switch that does not have silver contact, it comprises housing (9), be articulated in the button (1) of housing (9) top and spiral-lock in the bottom (13) of housing (9) bottom, the neon lamp seat (5) that band neon lamp (3) is arranged in the bottom spiral-lock of button (1), on bottom (13), be fitted with two stent foots (10) and the contact pin (12) relative with stent foot (10), the upper end bending of described stent foot (10) forms fulcrum (10.1), and contact pin (12) is provided with two fixed contacts (12.1), the bottom that it is characterized in that described neon lamp seat (5) is provided with two pairs of body cradles arranged side by side (5.1), the bottom-hinged of every pair of body cradle (5.1) has a springboard (8), every springboard (8) offsets with the fulcrum (10.1) of corresponding stent foot (10), compression spring (6) is installed between every pair of body cradle (5.1), this compression spring (6) offsets by the upper surface of traveller (7) with springboard (8), one end of springboard (8) is the moving contact (8.1) relative with fixed contact (12.1), and this moving contact (8.1) is bent to form by springboard (8) end arc.

2. the high power switch of no silver contact according to claim 1, the center that it is characterized in that described fixed contact (12.1) is to upper process.

3. the high power switch of no silver contact according to claim 1 and 2 is characterized in that being provided with in the described housing (9) isolated column (11), and this isolated column (11) is positioned between two pairs of body cradles (5.1) of neon lamp seat (5) bottom.

4. the high power switch of no silver contact according to claim 3 is characterized in that described neon lamp (3) passes through compression spring (6) in series resistor (4) back and traveller (7) is connected with springboard (8).

5. the high power switch of no silver contact according to claim 4 is characterized in that offering loophole on the described button (1), is provided with neon lamp cover (2) in loophole.