CN206697400U

CN206697400U - A kind of mechanical axis of center dress LED

Info

Publication number: CN206697400U
Application number: CN201720621219.2U
Authority: CN
Inventors: 庄志荣
Original assignee: HUIZHOU TRANTEK ELECTRONICS CO Ltd
Current assignee: HUIZHOU TRANTEK ELECTRONICS CO Ltd
Priority date: 2017-05-31
Filing date: 2017-05-31
Publication date: 2017-12-01
Anticipated expiration: 2027-05-31

Abstract

It the utility model is related to a kind of mechanical axis of center dress LED, including base, the button being connected with base, the upper lid fastened with base, button upper end is exposed to lid for pressing, the middle of the base is provided with guide pillar, the axial centre of guide pillar is provided with the first through hole through guide pillar, button bottom is arranged in the prominent part of insertion first through hole and causes base and the connecting pole of button connects, base lower end is provided with a PCB, the first mounting hole corresponding with first through hole is provided with PCB, one LED is attached on the first mounting hole and light can be exposed in first through hole and outwards projected through connecting pole.The utility model light makes that the indicating effect of button is more preferable, and light is evenly distributed on keycap by the refraction of connecting pole and keycap, will not be dazzling, and user can comfortably see the mark on keycap under dark environment.

Description

A kind of mechanical axis of center dress LED

Technical field

A kind of keyboard is the utility model is related to, the mechanical axis of LED is filled more particularly to a kind of center.

Background technology

Many operations of existing keyboard need to use key switch as input medium, but in night or dark environment In, because sight is dark, it is impossible to see keyboard or identification less than different keyboards mark, easily push the wrong button, Therefore, a LED can be all installed on button switch for keyboard, to adapt in dark environment still it can be seen that button.

In existing button switch for keyboard, the LED on keyboard is provided in close to the outer peripheral position of key switch And be soldered on PCB, the light from light scattering to the top with marking keys of key switch outward flange scattering is less, leads Cause mark not see Chu, dark environment can not be adapted to.

Utility model content

Based on this, there is provided a kind of mechanical axis of center dress LED.

A kind of mechanical axis of center dress LED, including base, the button that is connected with base and with base fastening Upper lid, button upper end are exposed to lid for pressing, and the middle of the base is provided with guide pillar, and the axial centre of guide pillar, which is provided with, runs through guide pillar First through hole, the button bottom be provided with insertion first through hole connecting pole, meanwhile, be externally provided with a reset bullet in the guide pillar Spring, button are installed on the guide pillar for being socketed with back-moving spring, and upper lid fastens with base forms a cavity in it, set in the cavity There are moving contact blade and fixing terminal, when pressing or decontroling button, moving up and down for button drives moving contact blade to act and then control Moving contact blade processed is contacted and disconnected with fixing terminal, and one end of fixing terminal and moving contact blade passes base；Under the base End is provided with a PCB, the first mounting hole corresponding with first through hole is provided with PCB, a LED is attached to the first mounting hole Upper and light can be exposed in first through hole and outwards projected through connecting pole.

Preferably, moving contact blade and fixing terminal are installed on the side of base, moving contact blade be provided with elastic portion and with The movable contact of elastic portion connection, fixing terminal are provided with the stationary contact pressed button and can contacted with movable contact.

Preferably, button is provided with convex tendon with respect to the side of moving contact blade, and the convex tendon holds up elastic portion, and movable contact is positioned at quiet Do not contacted above contact with stationary contact.

Preferably, the upper end of the button is provided with the keycap for being available for pressing.

Preferably, the connecting pole and keycap are made of light transmissive material.

The mechanical axis of above-mentioned center dress LED, PCB are installed on base lower end, are provided with PCB and first through hole Corresponding first mounting hole, LED are installed on first mounting hole, then LED is on the center of base, and light Sequentially passing through connecting pole and keycap outwards projects, light makes the indicating effect of button more preferable by the refraction of connecting pole and keycap, Light is evenly distributed on keycap, will not be dazzling, and user can comfortably see the mark on keycap under dark environment.

Brief description of the drawings

Fig. 1 is the overall schematic for the mechanical axis that center described in the utility model fills LED；

Fig. 2 is the exploded perspective view for the mechanical axis that center described in the utility model fills LED；

Fig. 3 is the explosion views for the mechanical axis that center described in the utility model fills LED；

Fig. 4 is the explosion views for another angle of mechanical axis that center described in the utility model fills LED.

Label declaration：Base 10, guide pillar 11, first through hole 12, positioning hole 13, connecting pole 14, button 20, convex tendon 21, on Lid 30, locating dowel 31, moving contact blade 40, movable contact 41, elastic portion 42, fixing terminal 50, stationary contact 51, PCB60, the first installation Hole 61, LED 62, the second mounting hole 63, keycap 70.

Embodiment

To enable above-mentioned purpose of the present utility model, feature and advantage more obvious understandable, below in conjunction with the accompanying drawings to this The embodiment of utility model is described in detail.

Referring to Fig. 1, a kind of mechanical axis of center dress LED, including base 10, button 20 and upper lid 30, button 20 are fixedly connected on base 10, and upper lid 30 is fastened on base 10, and the upper end of button 20 is exposed to lid 30 for pressing.

Fig. 1, Fig. 2, Fig. 3 and Fig. 4 are referred to, the middle part of base 10 is provided with guide pillar 11, and the axial centre of guide pillar 11, which is provided with, passes through The first through hole 12 of post 11 is perforated, first through hole 12 also extends through the bottom of base 10, and the bottom of button 20 is arranged in the prominent part of insertion first Through hole 12 causes the connecting pole 14 that base 10 and button 20 connect, and a back-moving spring is externally provided with the guide pillar 11（It is not shown）, Button 20 is installed on the guide pillar 11 for being socketed with back-moving spring, and back-moving spring is socketed in outside guide pillar, coordinates button 20 and base Pressure can be achieved with upspringing in back-moving spring between 10.

Multiple locating dowels 31 are provided with the upper lower end of lid 30, base 10 is provided with multiple positioning holes with the installation connection of locating dowel 31 13, pass through being used cooperatively for locating dowel 31 and positioning hole 13 so that upper lid 30 is fixedly installed in base 10.In the upper end of button 20 The keycap 70 for pressing is also equipped with, pressing position of the keycap as button 20, by pressing keycap 70, coordinates and resets bullet Spring, realize the pressure of button 20 with upspringing.

Upper lid 30 is fastened with base 10 and a cavity is formed in it, and moving contact blade 40 and fixing terminal are provided with the cavity 50, when pressing or decontroling button 20, moving up and down for button 20 drives moving contact blade 40 to act and then control moving contact blade 40 Contact and disconnect with fixing terminal 50, one end of fixing terminal 50 and moving contact blade 40 passes base 10, and the end can be used for connecting Connect external circuit.In this way, when pressing or decontroling button 20 so that moving contact blade 40 is contacted or broken with fixing terminal 50 Open, realize the operation of button, back-moving spring causes button 20 to upspring.

Moving contact blade 40 and fixing terminal 50 are installed on a side of base 10, wherein, moving contact blade 40 is one dynamic Shell fragment is touched, the shell fragment is provided with elastic portion 42 and movable contact 41, and movable contact 41 and elastic portion 42 connect, elastic portion 42 and movable contact 41 integrally manufactured form.Fixing terminal 50 is provided with the stationary contact 51 pressed button 20 and can contacted with movable contact 41.Do not pressing During button 20, a side of the side of the relative base 10 of button 20 is provided with convex tendon 21, and the convex tendon 21 holds up elastic portion 42, moves Contact 41 is located at the top of stationary contact 51 and not contacted with stationary contact 51, and convex tendon 21 is insulator, then moving contact blade 40 and fixing terminal 50 not in contact with, in this way, can avoid when not pressing button 20, the contact between movable contact 41 and stationary contact 51, now, bullet Property portion 42 is lifted generation elastic force.

When pressing button 20, button 20 moves down, then convex tendon 21 also moves down, then the elastic force of elastic portion 42 drives Movable contact 41 follows convex tendon 21 to move down, when being moved to certain position, movable contact 41 contacts with stationary contact 51, then button Instruction can be contacted on transmission external circuit by movable contact 41 with stationary contact 51, when decontroling button 20, in back-moving spring Under effect, button 20 moves up, then convex tendon 21 also moves up, and convex tendon 21 lifts movable contact 41, movable contact 41 and stationary contact 51 disconnect, and the instruction of button disconnects, and completes the operation of button.

The lower end of base 10 is provided with a PCB60, and the first mounting hole 61 corresponding with first through hole is provided with PCB60, One LED 62 is attached on the first mounting hole 61 and light can be exposed in first through hole 12 and outwards penetrated through connecting pole 14 Go out.Connecting pole 14 is made of light transmissive material.Multiple second mounting holes 63 are additionally provided with base 10, PCB60 passes through steady pin 15 are inserted in one of in the second mounting hole 63 so as to be fixedly connected with base 10.

The LED 62 is in normal bright state, can use Surface-mount LED lamp, can reduce volume of the LED on PCB60, Meanwhile the reliability of Surface-mount LED lamp is high, vibration strength is good.

Specifically mounting means is：Fixing terminal 50 is first fixed on base 10, and back-moving spring is socketed in the outer of guide pillar 11 Portion, then button 20 is installed, the connecting pole 14 of button 20 is inserted in first through hole 12 so that back-moving spring is connected to button 20 and bottom Between seat 10, moving contact blade 40 is installed on base 10 again so that the convex tendon 21 of button 20 just props up the dynamic of moving contact blade 40 Contact 41, prevent movable contact 41 from being contacted with stationary contact 51, upper lid 30 is fastened on base 10, and the upper end of button 20 is exposed to lid 30, LED 62 is directly mounted on PCB60, and PCB60 is arranged on the lower end of base 10, finally installs keycap, then installs.

Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed, But therefore it can not be interpreted as the limitation to utility model patent scope.It should be pointed out that the common skill for this area For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.

Claims

1. a kind of mechanical axis of center dress LED, including base（10）, the button that is connected with base（20）And and base The upper lid fastened（30）, button upper end is exposed to lid and is provided with guide pillar for pressing, the middle of the base（11）, in the axial direction of guide pillar The heart is provided with the first through hole through guide pillar（12）, the button bottom is provided with the connecting pole of insertion first through hole（14）, meanwhile, The guide pillar is externally provided with a back-moving spring, and button is installed on the guide pillar for being socketed with back-moving spring, and upper lid fastens its interior shape with base Into a cavity, moving contact blade is provided with the cavity（40）And fixing terminal（50）, when press or decontrol button when, button it is upper Lower mobile drive moving contact blade acts and then controls moving contact blade to contact and disconnect with fixing terminal, fixing terminal and moving contact blade One end pass base；Characterized in that, the base lower end is provided with a PCB（60）, it is provided with PCB and leads to first First mounting hole corresponding to hole（61）, a LED is attached on the first mounting hole and light can be exposed in first through hole and worn Connecting pole is crossed outwards to project.

2. the mechanical axis of dress LED in center according to claim 1, it is characterised in that moving contact blade and fixing end Son is installed on the side of base, and moving contact blade is provided with elastic portion（42）The movable contact being connected with elastic portion（41）, it is fixed Terminal is provided with the stationary contact pressed button and can contacted with movable contact（51）.

3. the mechanical axis of dress LED in center according to claim 2, it is characterised in that button is with respect to moving contact blade Side be provided with convex tendon（21）, convex tendon picking-up elastic portion, movable contact is located above stationary contact not to be contacted with stationary contact.

4. the mechanical axis of dress LED in center according to claim 3, it is characterised in that the upper end peace of the button Equipped with the keycap for being available for pressing（70）.

5. the mechanical axis of dress LED in center according to claim 4, it is characterised in that the connecting pole and keycap It is made of light transmissive material.