CN201513855U

CN201513855U - Structure of soft contact-type switch

Info

Publication number: CN201513855U
Application number: CN2009202059860U
Authority: CN
Inventors: 尹应茂; 岑亮
Original assignee: Shenzhen Langheng Electronic Co Ltd
Current assignee: Shenzhen Langheng Electronic Co Ltd
Priority date: 2009-10-19
Filing date: 2009-10-19
Publication date: 2010-06-23
Anticipated expiration: 2019-10-19

Abstract

The utility model relates to a switch of a flashlight as a handheld illuminating device in the field of electricity, in particular to the structure of a soft contact-type switch of a flashlight. The soft contact-type switch connected with a flashlight body of the flashlight comprises a flashlight tail, wherein a spring, a PCB (printed circuit board) and a spring piece are sequentially mounted in the inner cavity of the flashlight tail; the spring is arranged between the bottom of the inner cavity of the flashlight tail and the PCB; and the spring piece is located on the upper side of the PCB. The utility model has the following beneficial effects that: 1, the occupied space in the length direction is small; the function of switching can be performed under the condition that the flashlight has the minimal diameter and length, thereby facilitating the miniaturization of the product; moreover, the switch has simple and reliable structure and is not likely to lose effectiveness and come into poor contact; the switch eliminates the risk that batteries are crushed by unscrewing the flashlight body by using excessively large force and prevents the flashlight body from swinging; and 2, the structure of the switch is simple and the operation thereof is convenient, particularly, the functions of switching and shifting of the flashlight can be performed by only lightly unscrewing the flashlight tail.

Description

A kind of soft touch switch structure

Technical field

The utility model relates to the switch of electricity field hand-held lighting device flashlight, refers more particularly to the soft touch switch structure of a kind of torch.

Background technology

In miniature flashlight art, how to dwindle the volume of flashlight switch, thereby reach flashlight is minimized, be an important problem.Present existing miniature flashlight, the general rotary switch technology of Cai Yonging, common way is directly to withstand battery with stack shell, the rotation stack shell makes anode contact or be separated with the lamp holder cathode contact, with the realization switching function.These class methods are owing to be not Elastic Contact, often loose contact, and the non-constant of reliability, and damage battery easily by pressure.The switch that generally uses on the torch has two kinds at present: forward switch and reverser.No matter being that they must take quite long length space, and cost with forward switch or reverser, for pursuing cost performance height and the extra small and multi-functional torch of volume, is their weak tendency.

Based on the weak point of above-mentioned existing flashlight switch, the inventor has designed the utility model " a kind of soft touch switch structure ".

The utility model content

The utility model at above-mentioned the deficiencies in the prior art technical problem to be solved is: a kind of soft touch switch structure is provided.

The technical scheme that its technical problem that solves the utility model adopts is:

A kind of soft touch switch structure is connected with the torch stack shell, comprises a tail, and described tube tail inner chamber is equiped with spring, pcb board and shell fragment successively, and spring is located between a tail intracavity bottom and the pcb board, and shell fragment is positioned at the pcb board upside.

Described tube tail inner chamber is provided with and is used for the stack shell end face that is communicated with shell fragment and pcb board.Described shell fragment upside is provided with locking plate, and tube tail and locking plate are by being threaded.

Operation principle of the present utility model is:

Soft touch switch structure is screwed in stack shell, when battery bottom slowly during the roof pressure shell fragment, when shell fragment and pcb board slowly sink down into and contact with a tube breech face, the support force of spring and the pressure of shell fragment maintain an equal level, this moment, GND formed path by shell fragment, pcb board, tube breech face and tube tail conduction screw thread, and this moment, the utility model was in critical conduction mode, the utility model was screwed in stack shell 0.2-0.5mm this moment again, switch just enters safe conducting state, and torch just begins trouble free service.

When the utility model was screwed in stack shell 0.6mm-1mm, switch just entered complete off-state, repeatedly the utility model was screwed in and the back-out stack shell, can realize the gear shift function.

Realize switch and gear shift function by said structure.

The beneficial effect of a kind of soft touch switch structure of the utility model is:

1, the length space that takies is little; Under the situation of torch minimum diameter and length, finish switching function, be very beneficial for the product miniaturization; And such construction of switch is simple and reliable, does not have the possibility that lost efficacy; Also have, because battery is connected in the loop by rubber-like spring and shell fragment, loose contact just can not appear in non-rigid the contact with the Elastic Contact of tube tail bottom cathode contact to form battery; Also make battery be reduced to zero by the risk of being damaged by pressure, and any rocking can not arranged in stack shell because of screwing the stack shell overexertion.

2, simple in structure, easy and simple to handle, only need turn switch and the gear shift function that a tail can be realized torch gently.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the STRUCTURE DECOMPOSITION schematic diagram of the utility model embodiment one;

Fig. 2 is the STRUCTURE DECOMPOSITION schematic diagram of the utility model embodiment two.

Description of reference numerals:

10, tube tail 20, spring 30, pcb board

40, shell fragment 50, locking plate

The specific embodiment

See figures.1.and.2, the utility model is to implement like this:

In Fig. 1, a kind of soft touch switch structure is connected with the torch stack shell, comprise a tail 10, tube tail 10 inner chambers are equiped with spring 20, pcb board 30 and shell fragment 40 successively, and spring 20 is located between a tail 10 intracavity bottoms and the pcb board 30, and shell fragment is positioned at pcb board 30 upsides.Tube tail 10 inner chambers are provided with the tube breech face 11 that is used for being communicated with shell fragment 40 and pcb board 30.

In Fig. 2, a kind of soft touch switch structure, be connected with the torch stack shell, comprise a tail 10, tube tail 10 inner chambers are equiped with spring 20, pcb board 30, shell fragment 40 and locking plate 50 successively, spring 20 is located between a tail 10 intracavity bottoms and the pcb board 30, and shell fragment is between pcb board 30 and locking plate 50.Tube tail 10 inner chambers are provided with the tube breech face 11 that is used for being communicated with shell fragment 40 and pcb board 30.Tube tail 10 and locking plate 50 are by being threaded.

The above, it only is the preferred embodiment of a kind of soft touch switch structure of the utility model, be not that technical scope of the present utility model is imposed any restrictions, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model above any trickle modification, equivalent variations and modification that embodiment did.

Claims

1. soft touch switch structure, be connected with the torch stack shell, comprise a tail (10), it is characterized in that: described tube tail (10) inner chamber is equiped with spring (20), pcb board (30) and shell fragment (40) successively, spring (20) is located between a tail (10) intracavity bottom and the pcb board (30), and shell fragment (40) is positioned at pcb board (30) upside.

2. a kind of soft touch switch structure according to claim 1 is characterized in that described tube tail (10) inner chamber is provided with the tube breech face (11) that is used for being communicated with shell fragment (40) and pcb board (30).

3. a kind of soft touch switch structure according to claim 1 is characterized in that described shell fragment (40) upside is provided with locking plate (50), the tube tail (10) with locking plate (50) by being threaded.