CN202947100U

CN202947100U - Electric conduction structure of flashlight

Info

Publication number: CN202947100U
Application number: CN 201220625529
Authority: CN
Inventors: 岑亮; 邓若夫
Original assignee: Shenzhen Langheng Electronic Co Ltd
Current assignee: Shenzhen Langheng Lighting Technology Co ltd
Priority date: 2012-11-23
Filing date: 2012-11-23
Publication date: 2013-05-22
Anticipated expiration: 2022-11-23

Abstract

The utility model discloses an electric conduction structure of a flashlight. The electric conduction structure of the flashlight comprises a flashlight head, a flashlight body and a flashlight tail, wherein the flashlight head and the flashlight body are connected through threads, a tail switch is arranged on the flashlight tail, a battery is arranged in an inner cavity of the flashlight body, a power source and a printed circuit board (PCB) are arranged in the flashlight head, the threads are insulators, the upper end face of the flashlight body serves as the electric conduction structure, a positive plate is arranged on the lower surface of the PCB, the positive plate contacts with an anode of the battery, and a negative electrode set plate is arranged at a contact position between the PCB and the upper end face of the flashlight body. Compared with the prior art, due to the fact that a whole working circuit of the electric conduction structure is arranged inside the flashlight, and does not contact with external environment, the electric conduction structure of the flashlight solves the problem that dirt such as dust influences conduction of the working circuit.

Description

The flashlight conductive structure

Technical field

The utility model relates to flashlight art, relates in particular to a kind of conductive structure of flashlight.

Background technology

In the prior art, the conductive structure of flashlight inside is one of key factor of torch for illumination performance, at present, a kind of flashlight by rotating cylinder head brightness adjusting is arranged on market, and it comprises cylinder head, stack shell and cylinder tail, and the cylinder head is threaded connection with stack shell, screw thread can conduct electricity, when screwing stack shell, the conductive contact point of the different brightness that arrange on stack shell front end and circuit board is connected, thereby realizes the adjustment of brightness; There is following shortcoming in this structure: in the process of spinning in and out brightness adjusting, the cylinder head easily is stained with the dirts such as dust with the screw thread of stack shell junction, makes negative electrode channel bad, situation about even opening circuit.

The utility model content

The technical problems to be solved in the utility model is, for the not smooth defective of flashlight conductive path of the prior art, provides a kind of conductive structure of flashlight, and this conductive structure has solved flashlight is easily affected the problem of operating circuit conducting by dirts such as dusts.

The technical scheme that its technical problem that solves the utility model adopts is: a kind of flashlight conductive structure is provided, comprise cylinder head, stack shell and cylinder tail, the cylinder head is threaded connection with stack shell, be provided with the afterbody switch on this tail, the stack shell inner chamber is equipped with battery, be provided with power supply and pcb board in the cylinder head, wherein: described screw thread is insulator, the stack shell front end face is set to conductive structure, described pcb board lower surface is provided with positive plate, this positive plate contacts with anode, and described pcb board and stack shell front end face contact position are provided with negative pole group sheet.

Implement the technical solution of the utility model, has following beneficial effect: compared with prior art, the utility model do not contact with external environment condition by the whole operating circuit of conductive structure being arranged at flashlight inside, solved the problem that the dirts such as dust affect the operating circuit conducting.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples, in accompanying drawing:

Fig. 1 is the structural representation of the utility model embodiment flashlight;

Fig. 2 is the utility model embodiment flashlight cross-sectional view;

Fig. 3 be in the utility model embodiment Fig. 1 D-D to schematic diagram;

Fig. 4 is that the utility model embodiment D-D is to cross-sectional view;

Fig. 5 is low bright state structure for amplifying schematic diagram in the utility model embodiment Fig. 4;

Fig. 6 is highlighted state structure for amplifying schematic diagram in the utility model embodiment Fig. 4.

The specific embodiment

In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.

see also illustrated in figures 1 and 2, the utility model example provides a kind of flashlight conductive structure, comprise cylinder 1, stack shell 2 and cylinder tail 3, cylinder 1 is connected by screw thread 5 with stack shell 2, be provided with afterbody switch 31 on this tail 3, the cylinder tail also is provided with switch key 32, stack shell 2 inner chambers are equipped with battery 4, be provided with power supply and pcb board 11 in cylinder 1, described screw thread 5 is insulator, stack shell 2 front end faces are set to conductive structure, described pcb board 11 lower surfaces are provided with positive plate 12, this positive plate 12 contacts with battery 4 is anodal, described pcb board 11 and stack shell 2 front end face contact positions are provided with negative pole group sheet 6.Be provided with light source 13 and reflector 14 in described 1, this light source 13 and reflector 14 are arranged on lamp socket 15.

As shown in Figure 2, described negative pole group sheet 6 comprises at least respectively one group of low bright negative plate 62 and one group of highlighted negative plate 61, is respectively used to flashlight touching of circuit under low bright state and highlighted state and leads to.

As shown in Fig. 3-6, the described low bright negative plate 62 of the utility model embodiment and 61 of highlighted negative plates are provided with the space, and the height of low bright negative plate 62 is higher than the height of highlighted negative plate 61; Described

positive plate

12 and 6 of negative pole group sheets are provided with dead ring 7, and this dead ring 7 height are higher than the height of positive plate 12, its internal diameter greater than battery 4 positive poles less than GND.

The utility model embodiment in use, anode and the pcb board 11 normal contact conditions of positive plate 12, stack shell 2 front ends contact with low bright negative plate 62, closed afterbody switch 31, flashlight are in low bright state illumination; Screw cylinder 1 and compress low bright negative plates 62 to stack shell 2 front ends with stack shell 2 front ends, this stack shell front end contact with highlighted negative plate 61, and the highlighted state of flashlight processing throws light on.

The described flashlight conductive structure of the utility model embodiment does not contact with external environment condition because whole operating circuit is in flashlight inside, and having solved the dirts such as dust affects the unimpeded problem of operating circuit.

The above is only preferred embodiment of the present utility model, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in claim scope of the present utility model.

Claims

1. flashlight conductive structure, comprise cylinder head, stack shell and cylinder tail, the cylinder head is threaded connection with stack shell, is provided with the afterbody switch on this tail, and the stack shell inner chamber is equipped with battery, be provided with power supply and pcb board in the cylinder head, it is characterized in that: described screw thread is insulator, and the stack shell front end face is set to conductive structure, and described pcb board lower surface is provided with positive plate, this positive plate contacts with anode, and described pcb board and stack shell front end face contact position are provided with negative pole group sheet.

2. flashlight conductive structure according to claim 1 is characterized in that: described negative pole group sheet comprises at least respectively one group of low bright negative plate and one group of highlighted negative plate.

3. flashlight conductive structure according to claim 2, is characterized in that: be provided with the space between described low bright negative plate and highlighted negative plate, hang down the height of bright negative plate higher than the height of highlighted negative plate.

4. flashlight conductive structure according to claim 3 is characterized in that: be provided with dead ring between described positive plate and negative pole group sheet, this dead ring height is higher than the height of positive plate, its internal diameter greater than anode less than GND.