CN203477922U - LED flashlight - Google Patents
LED flashlight Download PDFInfo
- Publication number
- CN203477922U CN203477922U CN201320608087.1U CN201320608087U CN203477922U CN 203477922 U CN203477922 U CN 203477922U CN 201320608087 U CN201320608087 U CN 201320608087U CN 203477922 U CN203477922 U CN 203477922U
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- CN
- China
- Prior art keywords
- led
- cylindrical shell
- flashlight
- circuit board
- flashlight body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 229910052751 metal Inorganic materials 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims abstract description 9
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 5
- 238000004020 luminiscence type Methods 0.000 claims description 10
- 239000011347 resin Substances 0.000 claims description 8
- 229920005989 resin Polymers 0.000 claims description 8
- 239000000956 alloy Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 3
- 239000011324 bead Substances 0.000 abstract 5
- 238000005286 illumination Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009304 pastoral farming Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The utility model relates to the field of illumination, and discloses an LED flashlight which solves the problems that the whole structure of an existing flashlight is not compact, and a circuit board is prone to short circuit. The LED flashlight comprises a flashlight body, an end cap arranged on the tail portion of the flashlight body, and a lamp holder arranged on the front portion of the flashlight body. The lamp holder is a light-emitting assembly contained in the front portion of the flashlight body. The light-emitting assembly comprises a reflector and LED lamp beads, wherein the LED lamp beads are welded on a PCB. A spring is led from positive poles of the LED lamp beads and is welded on the reverse side of the PCB. The spring is electrically connected with a battery set in the flashlight body. A metal wire is led from negative poles of the LED lamp beads and makes tight contact with the inner wall of the aluminum alloy flashlight body. Clamping structures matched with each other are arranged on connection portions of the PCB and the flashlight body respectively. The clamping structures can effectively prevent the PCB from loosening in the process of use; Due to the fact that the metal wire is led from the negative poles of the LED lamp beads and is electrically connected with the metal flashlight body, the LED flashlight is more stable in the process of use and not prone to breakage. The lamp holder portion and the flashlight body are designed in an integrated mode, and therefore the LED flashlight is compact in structure.
Description
Technical field
The utility model relates to lighting field, is specifically related to a kind of compact conformation, and easy to assembly quick, PCB circuit board is difficult for loosening integral LED flashlight.
Background technology
General No. 1 dry cell power supply of two joints that adopts of traditional flashlight, illuminating part is bulb, its shortcoming is that all larger, power consumption is simultaneously greatly and carry inconvenience for volume and weight.Along with the progress of technology, there is the LED flashlight of the little and power consumptive province of volume.There is a kind of LED flashlight, comprise lamp holder, stack shell and tail-hood that LED lamp is installed, in stack shell, be disposed with respectively control circuit board and dry cell.In the structure of flashlight, LED lamp is connected with control circuit board by wire, and the electrode input end of control circuit board is connected with the positive terminal of dry cell, and the negative pole end of dry cell is connected with the tail-hood of flashlight.Compare original bulb-type flashlight, it is little that LED flashlight has volume, the advantages such as power consumptive province.But still there are some shortcomings in structure aspects in current LED flashlight simultaneously:
1, the overall structure of flashlight is compact not, and flashlight vibrations in use easily cause damage to LED lamp and components and parts or cause the short circuit of circuit, cause flashlight normally to use.
2, usually loose contact of the shell of power cathode and flashlight, causes flashlight to be neglected secretly suddenly bright.
3, using wire and be connected with circuit board as electrode outlet line, in use easily because circuit board moves, cause wire fracture.
Utility model content
The defect existing in order to solve above-mentioned technology, the utility model provides a kind of structure compacter, the LED flashlight that PCB circuit board is more firm.
The utility model is realized the technical scheme that above-mentioned technique effect adopts:
A LED flashlight, comprises the end cap of cylindrical shell, cylindrical shell afterbody and the lamp holder of cylindrical shell front portion, and described lamp holder is the luminescence component being contained in the anterior cavity of cylindrical shell, and described luminescence component comprises reflection shield and is welded on the LED lamp pearl on PCB circuit board.
As a kind of improvement of the present utility model, the positive pole of described LED lamp pearl picks out a spring and is welded on the reverse side of PCB circuit board, this spring is electrically connected to the battery pack in cylindrical shell, the negative pole of described LED lamp pearl draw a metal wire and with the cylinder inboard wall close contact of aluminum alloy material.
Above-mentioned a kind of LED flashlight, described PCB circuit board and cylindrical shell are respectively equipped with the retaining structure cooperatively interacting in both junctions.
Above-mentioned a kind of LED flashlight, described retaining structure is the projection coordinating with described draw-in groove on the inwall of draw-in groove on PCB circuit board and the anterior cavity of cylindrical shell.
Above-mentioned a kind of LED flashlight, the internal diameter of the anterior anterior cavity for accommodating luminescence component of described cylindrical shell is greater than the internal diameter of cylindrical shell middle part cavity, and is shaped to an annular boss in the intersection of anterior cavity and middle part cavity.
Above-mentioned a kind of LED flashlight, the inwall of the anterior cavity of described cylindrical shell is provided with the annular groove of clamping resin lens, the setting that keeps at a certain distance away of described annular groove and barrel front end face.
Above-mentioned a kind of LED flashlight, described end cap is provided with press button.
The beneficial effects of the utility model are: this LED flashlight is contained in lamp holder in the anterior cavity of cylindrical shell, make lamp holder position and cylindrical shell be integrally formed formula design, compact conformation, PCB circuit board and cylindrical shell are respectively equipped with the retaining structure cooperatively interacting in both junctions, this retaining structure can effectively prevent that PCB circuit board is in use loosening, the negative pole of LED lamp pearl is drawn a metal wire and is directly electrically connected to metal cylinder, in use more stable, not easy fracture.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is that PCB circuit board described in the utility model and cylindrical shell are in the partial, detailed view of junction;
Fig. 3 is that cylindrical shell described in the utility model is in the partial, detailed view of anterior cavity;
In figure: 1-cylindrical shell, 2-end cap, 3-battery pack, 4-reflection shield, 5-LED lamp pearl, 6-resin lens, 7-PCB circuit board, 8-sealing ring, the anterior cavity of 9-, 10-middle part cavity, 11-projection, 12-annular groove, 13-annular boss, 71-draw-in groove, 72-perforation.
The specific embodiment
Below with reference to Figure of description and specific embodiment, the utility model is described in further detail:
Shown in Fig. 3, a kind of LED flashlight, comprise the end cap 2 of cylindrical shell 1, cylindrical shell afterbody and the lamp holder of cylindrical shell front portion, cylindrical shell 1 adopts aluminum alloy materials to make, end cap 2 is connected with cylindrical shell 1 by the mode of screw thread twist, and end cap 2 is provided with press button and is covered with a fur cap, presses the break-make that fur cap can be controlled electric torch circuit, lamp holder is the luminescence component being contained in the anterior cavity 9 of cylindrical shell 1, and this luminescence component comprises reflection shield 4 and is welded on the LED lamp pearl 5 on PCB circuit board 7.
Wherein, as a kind of preferred version of the present utility model, the positive pole of this LED lamp pearl 5 picks out a spring and is welded on the reverse side of PCB circuit board 7, this spring is electrically connected to the battery pack 3 in cylindrical shell 1, the negative pole of this LED lamp pearl 5 draw a metal wire and with the inwall close contact of the cylindrical shell 1 of aluminum alloy material.PCB circuit board 7 and cylindrical shell 1 are respectively equipped with the retaining structure cooperatively interacting in both junctions, this retaining structure is the projection 11 matching with draw-in groove 71 on the inwall of anterior cavity 9 of draw-in groove 71 on PCB circuit board 7 and cylindrical shell 1, when mounted, the draw-in groove of PCB circuit board 7 71 is aimed to projection 11 to be pressed, PCB circuit board can be fixed in cylindrical shell 1 firmly, in use can, because the external force factors such as vibrations cause PCB circuit board loosening, not increase the steadiness of PCB circuit board.
During enforcement, the internal diameter of the anterior anterior cavity 9 for accommodating luminescence component of cylindrical shell 1 is greater than the internal diameter of the middle part cavity 10 of cylindrical shell 1, and be shaped to an annular boss 13 in the intersection of anterior cavity 9 and middle part cavity 10, this annular boss 13, for accepting PCB circuit board 7, can prevent that PCB circuit board 7 from moving axially in the cavity of cylindrical shell 1.In order to play better spotlight effect, the front end of luminescence component is provided with resin lens 6, on the inwall of the anterior cavity 9 of cylindrical shell 1, be also provided with the annular groove 12 of clamping resin lens 6, this annular groove 12 keeps certain distance apart from the front end face of cylindrical shell 1, make resin lens 6 can keep certain distance with desktop when flashlight is vertically placed, can effectively avoid resin lens 6 to be stained with the spot of the reduction light transmittances such as profit, also can prevent that resin lens 6 surfaces from producing cut with the grazing of desktop graininess foreign matter.
This LED flashlight is contained in lamp holder in the anterior cavity 9 of cylindrical shell 1, makes lamp holder position and cylindrical shell 1 form integral type design, compact overall structure, convenience quick for installation; The retaining structure that PCB circuit board 7 and cylindrical shell 1 arrange respectively in both junctions can effectively prevent that PCB circuit board 7 is in use loosening, in addition, the negative pole of LED lamp pearl 5 is drawn a metal wire and is directly electrically connected to the cylindrical shell 1 of metal material, abandoned traditional side connecting conductor formula, in use more stable, easy fracture not, longer service life.
More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what in above-described embodiment and description, describe is principle of the present utility model; under the prerequisite that does not depart from the utility model spirit and scope, the utility model also has various changes and modifications; these changes and improvements all fall in claimed scope of the present utility model, and the protection domain that the utility model requires is defined by appending claims and equivalent thereof.
Claims (5)
1. a LED flashlight, comprise the end cap of cylindrical shell, cylindrical shell afterbody and the lamp holder of cylindrical shell front portion, described lamp holder is the luminescence component being contained in the anterior cavity of cylindrical shell, described luminescence component comprises reflection shield and is welded on the LED lamp pearl on PCB circuit board, it is characterized in that, the positive pole of described LED lamp pearl picks out a spring and is welded on the reverse side of PCB circuit board, this spring is electrically connected to the battery pack in cylindrical shell, the negative pole of described LED lamp pearl draw a metal wire and with the cylinder inboard wall close contact of aluminum alloy material.
2. a kind of LED flashlight according to claim 1, is characterized in that, described PCB circuit board and cylindrical shell are respectively equipped with the retaining structure cooperatively interacting in both junctions.
3. a kind of LED flashlight according to claim 2, is characterized in that, described retaining structure is the projection coordinating with described draw-in groove on the inwall of draw-in groove on PCB circuit board and the anterior cavity of cylindrical shell.
4. according to a kind of LED flashlight described in claim 1 or 3, it is characterized in that, the internal diameter of the anterior anterior cavity for accommodating luminescence component of described cylindrical shell is greater than the internal diameter of cylindrical shell middle part cavity, and is shaped to an annular boss in the intersection of anterior cavity and middle part cavity.
5. a kind of LED flashlight according to claim 1, is characterized in that, the inwall of the anterior cavity of described cylindrical shell is provided with the annular groove of clamping resin lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320608087.1U CN203477922U (en) | 2013-09-27 | 2013-09-27 | LED flashlight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320608087.1U CN203477922U (en) | 2013-09-27 | 2013-09-27 | LED flashlight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203477922U true CN203477922U (en) | 2014-03-12 |
Family
ID=50226250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320608087.1U Expired - Fee Related CN203477922U (en) | 2013-09-27 | 2013-09-27 | LED flashlight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203477922U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106764587A (en) * | 2017-01-23 | 2017-05-31 | 中山米戈尔照明有限公司 | A kind of rising angle governor motion and LED lamp |
-
2013
- 2013-09-27 CN CN201320608087.1U patent/CN203477922U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106764587A (en) * | 2017-01-23 | 2017-05-31 | 中山米戈尔照明有限公司 | A kind of rising angle governor motion and LED lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20150927 |
|
| EXPY | Termination of patent right or utility model |