CN208173462U - A kind of switch with overcurrent safety function - Google Patents

Abstract

The utility model relates to switching technique fields, especially a kind of switch with overcurrent safety function, including lower case and upper housing, it is connected by a snap between the lower case and upper housing, circular mounting slot is offered at the top of the lower case, mounting groove inner bottom center is vertically connected with connecting column, the first spring is arranged on the connecting column, the outer sheath of first spring is equipped with terminal pad, the terminal pad is located inside mounting groove, and switch button is arranged at the top of the terminal pad, the bottom end of the switch button is connected with fixed ring, button set is arranged at the top of the switch button, the button, which is covered, offers limiting tooth on position corresponding with fixed ring, it is intermeshed between two limiting tooths.The utility model, structure is simple, easy to operate, and uniqueness is provided with overcurrent safety function, and the difficulty for installing current insurance silk outside needing is effectively reduced in practical application, simplifies external circuit, while reducing the set-up time.

Description

A kind of switch with overcurrent safety function

Technical field

The utility model relates to switching technique field more particularly to a kind of switches with overcurrent safety function.

Background technique

Switch is the electronic component that can make open circuit, make current interruptions or its electric current is made to flow to other circuits. The most common switch is that people is allowed to operate the electromechanical equipment being switched on or switched off, wherein there is one or several electronic contacts.Contact " closes Close " indicate electronic contact conducting, allow electric current to flow through；" open circuit " of switch indicates that electronic contact is not turned on to form open circuit, does not permit Perhaps electric current flows through.Majority can be fitted without overcurrent safety device inside existing button switch and rocker switch, but excessively electric Stream safety device is generally located on external circuit, and fixing piece is usually used between switch and is connect, and setting in this way is not easy to outer The design of portion's circuit reduction, practical application increase interiors of products complex circuit, reduce product installation effectiveness, be not easy to repair Worker's replacement and installation.

Utility model content

It is not easy to replace and install purpose of the utility model is to solve existing in the prior art, while being not easy to outer The shortcomings that portion's circuit reduction design, practical application increases interiors of products complex circuit, reduces product installation effectiveness, and mention A kind of switch with overcurrent safety function out.

To achieve the goals above, the utility model uses following technical solution：

Design a kind of switch with overcurrent safety function, including lower case and upper housing, the lower case and upper casing It is connected by a snap between body, circular mounting slot, the mounting groove inner bottom centre bit is offered at the top of the lower case It sets and is vertically connected with connecting column, the first spring is arranged on the connecting column, the outer sheath of first spring is equipped with terminal pad, The terminal pad is located inside mounting groove, and switch button is arranged at the top of the terminal pad, the bottom end of the switch button It is connected with fixed ring, button set is arranged at the top of the switch button, the button covers position corresponding with fixed ring On offer limiting tooth, be intermeshed between two limiting tooths, and the upper housing and button set corresponding position on open Equipped with through-hole, the button set sliding is inserted into inside through-hole, and along the circumferential direction equidistant vertical on the inner wall of the through-hole Multiple keyways are offered, key pin is fitted with inside the keyway, multiple key pins are commonly connected to the outside of button set, Power device is equipped between the lower case and upper housing, the power device includes left pin and right pin, the right pin Including the first connection sheet and the second connection sheet, fuse, the insurance are equipped between first connection sheet and the second connection sheet It is connected by bindiny mechanism between silk both ends and the first connection sheet and the second connection sheet, in the left pin and the second connection sheet The side being located remotely from each other symmetrically offers fixation hole, offers jack in the lower case of the fixation hole corresponding position, described Upper housing bottom is connected with the inserted link to match with jack, the inserted link extends through corresponding fixation hole and end be inserted into it is slotting Inside hole, and left pin one end adjacent with the second connection sheet is coextensive to outside lower case and upper housing, and the left side is drawn Foot and the first connection sheet with contacted at the top of terminal pad.

Preferably, equidistant in the fixed ring to be connected with multiple limited blocks, the through-hole bottom of the limited block corresponding position End offers card slot, and the limited block is stuck in inside card slot.

Preferably, the bindiny mechanism includes two T-bars, and two T-bars run through the first connection sheet or second Connection sheet and end are connected with clamping plate jointly, and the T-bar is arranged with second spring far from one end of clamping plate, described in two Open up fluted at the top of clamping plate between T-bar, the fuse is located inside grooves.

Preferably, pass through ultrasonic welding or Laser Welding between the fuse both ends and the first connection sheet and the second connection sheet It connects in succession.

Preferably, the T-bar and clamping plate are that non-conductive material is made.

Preferably, the inner bottom of the groove offers non-slip texture.

Preferably, the button set is made of isolation material.

The utility model proposes a kind of switch with overcurrent safety function, beneficial effect is：Pass through the first bullet Spring is at energized state so that terminal pad be pushed to contact with left pin and right pin, by button press set, to open Closing button pushes terminal pad to move down, and the first spring is in compressive state, so that left pin and right pin are in off-position, leads to Overcurrent safety silk is crossed, so as to realize the excessive function of disconnecting automatically of electric current, by bindiny mechanism, consequently facilitating to insurance Silk is installed and is replaced.The utility model, structure is simple, easy to operate, and uniqueness is provided with overcurrent safety function, in reality Using when effectively reduce and need the difficulty of external installation current insurance silk, when simplifying external circuit, while reducing installation Between.

Detailed description of the invention

Fig. 1 be the utility model proposes a kind of switch with overcurrent safety function structural schematic diagram；

Fig. 2 be the utility model proposes a kind of switch with overcurrent safety function configuration schematic diagram.

In figure：Lower case 1, upper housing 2, keyway 3, button set 4, through-hole 5, left pin 6, right pin 7, mounting groove 8, connection Column 9, fuse 11, the first connection sheet 12, the first spring 13, terminal pad 14, limited block 15, switch button 16, is consolidated fixation hole 10 Determine ring 17, key pin 18, inserted link 19, jack 20, the second connection sheet 21.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.

Referring to Fig.1-2, a kind of switch with overcurrent safety function, including lower case 1 and upper housing 2,1 He of lower case It is connected by a snap between upper housing 2, the top of lower case 1 offers circular mounting slot 8,8 inner bottom centre bit of mounting groove It sets and is vertically connected with connecting column 9, the first spring 13 is arranged on connecting column 9, the outer sheath of the first spring 13 is equipped with terminal pad 14, Terminal pad 14 is located inside mounting groove 8, and the top of terminal pad 14 is arranged with switch button 16, the bottom end connection of switch button 16 Have fixed ring 17, be arranged with button set 4 at the top of switch button 16, button set 4 is made of isolation material, button set 4 with it is solid Determine to offer limiting tooth on the corresponding position of ring 17, be intermeshed between two limiting tooths, and upper housing 2 and button set 4 Offer through-hole 5 on corresponding position, 4 sliding of button set is inserted into inside through-hole 5, and on the inner wall of through-hole 5 along the circumferential direction etc. Distance offers multiple keyways 3 vertically, and key pin 18 is fitted with inside keyway 3, and multiple key pins 18 are commonly connected to button set 4 Outside, equidistant in fixed ring 17 to be connected with multiple limited blocks 15,5 bottom end of through-hole of 15 corresponding position of limited block offers card Slot, limited block 15 are stuck in inside card slot, power device are equipped between lower case 1 and upper housing 2, power device includes left pin 6 and right pin 7, right pin 7 includes the first connection sheet 12 and the second connection sheet 21, the first connection sheet 12 and the second connection sheet 21 it Between be equipped with fuse 11, between 11 both ends of fuse and the first connection sheet 12 and the second connection sheet 21 by bindiny mechanism company It connects, is connected between 11 both ends of fuse and the first connection sheet 12 and the second connection sheet 21 by ultrasonic welding or laser welding；It is logical Keyway 3 and key pin 18 are crossed, so as to avoid button set 4 from sliding away in the through-hole 5 from upper housing 2, passes through limited block 15 And card slot, so as to avoid button set 4 in 5 inner rotation of through-hole, by limiting tooth, so as to avoid switch button 16 from existing Button covers 4 inner rotations, is made at its by the first spring 13 so that terminal pad 14 be pushed to contact with left pin 6 and right pin 7 In energized state, by button press set 4, so that switch button 16 pushes terminal pad 14 to move down, the first spring 13 is in pressure Contracting state, so that left pin 6 and right pin 7 are in off-position.

Bindiny mechanism includes two T-bars, and two T-bars run through the first connection sheet 12 or the second connection sheet 21 and end It is connected with clamping plate jointly, T-bar and clamping plate are that non-conductive material is made, and the one end of T-bar far from clamping plate is arranged with Two springs, open up at the top of the clamping plate between two T-bars fluted, and the inner bottom of groove offers non-slip texture, insurance Silk 11 is located inside grooves, symmetrically offers fixation hole 10 in the side that left pin 6 and the second connection sheet 21 are located remotely from each other, fixed Jack 20 is offered in the lower case 1 of 10 corresponding position of hole, 2 bottom of upper housing is connected with the inserted link to match with jack 20 19, inserted link 19 extends through corresponding fixation hole 10 and end is inserted into inside jack 20, and left pin 6 and the second connection sheet 21 Adjacent one end is coextensive to outside lower case 1 and upper housing 2, the top of left pin 6 and the first connection sheet 12 with terminal pad 14 Portion's contact；By pulling downward on clamping plate, so that second spring is in compressive state, fuse 11 is placed on inside grooves, and pine Clamping plate is opened, second spring resets, so that clamping plate be driven to move up, clamping is fixed to fuse 11, passes through insurance Silk 11 enhances safety in utilization so as to realize the excessive function of disconnecting automatically of electric current, by inserted link 19 and jack 20, from And left pin 6 and right pin 7 can be limited, avoid left pin 6 and right pin 7 sliding between lower case 1 and upper housing 2 It is dynamic.

The utility model：By bindiny mechanism, consequently facilitating fuse 11 is installed and replaced, pass through fuse 11, so as to realize the excessive function of disconnecting automatically of electric current, by the first spring 13, to push terminal pad 14 and left pin 6 and right pin 7 contact, be at energized state, by button press set 4, thus switch button 16 push terminal pad 14 to Lower movement, the first spring 13 is in compressive state, so that left pin 6 and right pin 7 are in off-position.

The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model Within enclosing.

Claims (7)

1. a kind of switch with overcurrent safety function, including lower case（1）And upper housing（2）, the lower case（1）With it is upper Shell（2）Between be connected by a snap, which is characterized in that the lower case（1）Top offer circular mounting slot（8）, institute State mounting groove（8）Inner bottom center is vertically connected with connecting column（9）, the connecting column（9）On be arranged with the first spring （13）, first spring（13）Outer sheath be equipped with terminal pad（14）, the terminal pad（14）Positioned at mounting groove（8）Inside, And the terminal pad（14）Top be arranged with switch button（16）, the switch button（16）Bottom end be connected with fixed ring （17）, in the switch button（16）Top be arranged with button set（4）, the button set（4）With fixed ring（17）It is corresponding Position on offer limiting tooth, be intermeshed between two limiting tooths, and the upper housing（2）With button set（4） Through-hole is offered on corresponding position（5）, the button set（4）Sliding is inserted into through-hole（5）Inside, and the through-hole（5）It is interior It is along the circumferential direction equidistant on wall to offer multiple keyways vertically（3）, the keyway（3）Inside is fitted with key pin（18）, more A key pin（18）It is commonly connected to button set（4）Outside, in the lower case（1）And upper housing（2）Between be equipped with it is logical Electric installation, the power device include left pin（6）With right pin（7）, the right pin（7）Including the first connection sheet（12）With Second connection sheet（21）, first connection sheet（12）With the second connection sheet（21）Between be equipped with fuse（11）, the insurance Silk（11）Both ends and the first connection sheet（12）With the second connection sheet（21）Between by bindiny mechanism connect, in the left pin （6）With the second connection sheet（21）The side being located remotely from each other symmetrically offers fixation hole（10）, the fixation hole（10）Corresponding position Lower case（1）On offer jack（20）, the upper housing（2）Bottom is connected with and jack（20）The inserted link to match （19）, the inserted link（19）Extend through corresponding fixation hole（10）And end is inserted into jack（20）Inside, and the left side is drawn Foot（6）With the second connection sheet（21）Adjacent one end is coextensive to lower case（1）And upper housing（2）Outside, the left pin（6） With the first connection sheet（12）And terminal pad（14）Top contact.

2. a kind of switch with overcurrent safety function according to claim 1, which is characterized in that the fixed ring （17）It is above equidistant to be connected with multiple limited blocks（15）, the limited block（15）The through-hole of corresponding position（5）Bottom end offers card Slot, the limited block（15）It is stuck in inside card slot.

3. a kind of switch with overcurrent safety function according to claim 1, which is characterized in that the bindiny mechanism Including two T-bars, two T-bars run through the first connection sheet（12）Or second connection sheet（21）And end connects jointly There is clamping plate, and the T-bar is arranged with second spring far from one end of clamping plate, at the top of the clamping plate between two T-bars Open up fluted, the fuse（11）Positioned inside grooves.

4. a kind of switch with overcurrent safety function according to claim 1, which is characterized in that the fuse （11）Both ends and the first connection sheet（12）With the second connection sheet（21）Between connected by ultrasonic welding or laser welding.

5. a kind of switch with overcurrent safety function according to claim 3, which is characterized in that the T-bar and Clamping plate is that non-conductive material is made.

6. a kind of switch with overcurrent safety function according to claim 3, which is characterized in that the groove it is interior Portion bottom end offers non-slip texture.

7. a kind of switch with overcurrent safety function according to claim 1, which is characterized in that the button set （4）It is made of isolation material.