CN211260410U

CN211260410U - Industrial and mining explosion-proof flashlight

Info

Publication number: CN211260410U
Application number: CN201922380592.5U
Authority: CN
Inventors: 吴胜彪
Original assignee: Ningbo Fanji Technology Co ltd
Current assignee: Ningbo Fanji Technology Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-08-14
Anticipated expiration: 2029-12-26

Abstract

The utility model relates to the technical field of electric torch, and discloses an industrial and mining explosion-proof electric torch, which comprises an electric torch body and a lamp holder body, wherein a battery assembly and LED printed circuit boards which are respectively arranged at two ends of the battery assembly are arranged in the electric torch body, and LED lamp groups are distributed on the LED printed circuit boards; a key switch for controlling the LED printed circuit board is arranged on the flashlight body; the lamp holder body is arranged at one end of the flashlight body, the lamp holder body is sequentially provided with the reflecting cup and the lens from inside to outside, the inner side surface of the lens is an arc-shaped light projecting surface, and the light projecting surface can concentrate light emitted by the LED lamp group to one focus; the outer side surface of the lens is a floodlight surface consisting of a plurality of regular hexagonal small planes, and the floodlight surface can scatter light emitted by the LED lamp group to the periphery. The utility model discloses at this internal anti-light cup and the lens of setting of lamp holder, can effectively improve the illumination distance of LED banks and shine luminance, be suitable for and use at special operation place and field work.

Description

Industrial and mining explosion-proof flashlight

Technical Field

The utility model relates to a flashlight technical field especially relates to an industrial and mining explosion-proof flashlight.

Background

Flashlights are a common type of lighting device, and there are two main types of light sources: one is incandescent, and the other is LED. In the traditional method, an incandescent lamp is used as a light source, and due to the high power consumption of the incandescent lamp, a large amount of heat is generated during working, and the continuous working time is short. At present, the LED lamp bead is often adopted as a light source, and the LED lamp has the characteristics of small volume, less power consumption, longer continuous working time, long service life and the like.

Although most of the existing explosion-proof flashlights used in special operation places such as operation places of industries such as mining fields, oil fields, petrifaction and gas maintenance and the like and in the field use long-life, low-power-consumption, energy-saving and environment-friendly LEDs as light sources, the existing flashlights have short irradiation distance and low irradiation brightness, and cannot meet the requirements of special operation places and the field on high-brightness and long-range illumination.

SUMMERY OF THE UTILITY MODEL

The utility model provides an industrial and mining explosion-proof flashlight to overcome the illumination distance of prior art's flashlight short, shine luminance low, demand to the illumination when can't satisfying special type workplace and field usage.

In order to achieve the above purpose, the basic scheme of the utility model is as follows: an industrial and mining explosion-proof flashlight comprises a flashlight body and a lamp cap body, wherein a light-emitting mechanism is arranged in the flashlight body, the light-emitting mechanism comprises a battery assembly and LED printed circuit boards which are respectively arranged at two ends of the battery assembly, and LED lamp groups are distributed on the LED printed circuit boards; a key switch for controlling the LED printed circuit board is arranged on the flashlight body; the lamp holder body is arranged at one end of the flashlight body, the lamp holder body is sequentially provided with the reflecting cup and the lens from inside to outside, the inner side surface of the lens is an arc-shaped light projecting surface, and the light projecting surface can concentrate light emitted by the LED lamp group to one focus; the outer side surface of the lens is a floodlight surface consisting of a plurality of regular hexagonal small planes, and the floodlight surface can scatter light emitted by the LED lamp group to the periphery.

Further, the lamp holder body comprises a lamp holder front cover and a lamp holder rear cover which are detachably connected with each other, the lens is installed on the lamp holder front cover, and a front cover sealing ring is arranged between the lens and the lamp holder front cover.

Furthermore, the LED lamp group is composed of a plurality of LED lamp beads, and the LED lamp beads are distributed on the LED printed circuit board in an annular array manner.

Further, battery pack includes battery support and lithium cell, battery support fixed mounting is in the flashlight fuselage, the lithium cell is installed in battery support.

Furthermore, a front copper foil and a back copper foil are respectively covered on two sides of the LED printed circuit board, the front copper foil is a heat-dissipation copper foil, a through hole is formed in the LED printed circuit board, and heat-conducting copper adhesive for mutually connecting the front copper foil and the back copper foil is arranged in the through hole.

Furthermore, radiating holes are densely distributed in the flashlight body, and corrugated concave grains are arranged on the outer side of the flashlight body.

Compared with the prior art, the scheme has the beneficial effects that:

1. the light that the LED banks in this flashlight gived off carries out the concentration of light through the light-projecting surface that anti-light cup projected the lens inboard, is thrown outward by the floodlight face in the lens outside again, can effectively improve the irradiation distance and the illumination intensity of LED banks.

2. The heat generated by the LED lamp set is conducted to the heat-dissipation copper foil by utilizing the excellent heat conductivity of the heat-conduction copper adhesive on the LED printed circuit board, so that the heat is more easily diffused outwards through the heat dissipation holes of the flashlight body, the heat dissipation effect is improved, and the use safety is improved.

3. The corrugated concave lines arranged on the outer side of the flashlight body can increase the friction force between the flashlight body and the hands of a user, and the flashlight body is not easy to slip off when being held, so that the flashlight is more convenient to use.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is an exploded view of the present invention.

Reference numerals in the drawings of the specification include: the LED flashlight comprises a front cover sealing ring 1, a lens 2, a reflective cup 3, a head LED printed circuit board 4, a screw 5, a lithium battery 6, a battery support 7, a tail LED printed circuit board 8, a battery support rear cover 9, an EVA cushion block 10, a key fixing column 11, a key fixing ring 12, a key switch 13, a lamp holder front cover 14, a flashlight body 15, a lamp holder rear cover 16, a lamp holder body 17, a heat dissipation hole 18 and concave grains 19.

Detailed Description

The invention will be described in further detail by means of specific embodiments with reference to the accompanying drawings:

example (b):

an industrial and mining explosion-proof flashlight is shown in figure 1 and comprises a flashlight body 15 and a lamp holder body 17, heat dissipation holes 18 are densely distributed in the flashlight body 15, and corrugated concave grains 19 are arranged on the outer side of the flashlight body 15. In addition, the flashlight body 15 is made of special alloy materials, the wall thickness of the flashlight body is 2 times thicker than that of a common product, and the flashlight body cannot crack under the conditions of severe environment and heavy object pressing.

As shown in fig. 2, a light-emitting mechanism is installed in the flashlight body 15, the light-emitting mechanism includes a battery assembly, a head LED printed circuit board 4 and a tail LED printed circuit board 8, the battery assembly includes a battery support 7 and a lithium battery 6, the battery support 7 is fixedly installed in the flashlight body 15 through a screw 5, the lithium battery 6 is installed in the battery support 7, the head LED printed circuit board 4 and the tail LED printed circuit board 8 are respectively installed at the head and the tail of the battery support 7, and the head LED printed circuit board 4 and the tail LED printed circuit board 8 are electrically connected with the lithium battery 6, and the tail of the battery support 7 is fixed on the tail of the battery support 7 through a rear cover 9 of the battery support. The tail of the flashlight body 15 is provided with a key switch 13 for controlling the head LED printed circuit board 4 and the tail LED printed circuit board 8, the key switch 13 is connected to the tail of the flashlight body 15 through a key fixing column 11 and a key fixing ring 12, and the rear covers of the key switch 13 and the battery bracket 7 are provided with EVA cushion blocks 10.

As shown in fig. 2, LED lamp groups are distributed on the head LED printed circuit board 4 and the tail LED printed circuit board 8, and each LED lamp group is composed of a plurality of LED lamp beads distributed on the two LED printed circuit boards in an annular array manner. The front copper foil and the back copper foil are respectively covered on the two sides of the head LED printed circuit board 4 and the tail LED printed circuit board 8, the front copper foil is a heat-dissipation copper foil, a through hole is formed in the LED printed circuit board, and heat-conducting copper adhesive for mutually connecting the front copper foil and the back copper foil is arranged in the through hole.

As shown in fig. 2, the base body 17 includes a base front cover 14 and a base rear cover 16 which are screwed to each other, and the base rear cover 16 is fixedly mounted on the head of the flashlight body 15. The lamp holder body 17 is sequentially provided with the reflecting cup 3 and the lens 2 from inside to outside, and the lens 2 is made of PC material and is not easy to break; the lens 2 is arranged on the lamp holder front cover 14, and a front cover sealing ring 1 is arranged between the lens 2 and the lamp holder front cover 14. The inner side surface of the lens 2 is an arc-shaped light projecting surface which can concentrate light emitted by the LED lamp group to a focus; the outer side surface of the lens 2 is a floodlight surface consisting of a plurality of regular hexagonal small planes, and the floodlight surface can scatter light emitted by the LED lamp group to the periphery.

The specific implementation mode of the scheme is as follows:

when the flashlight is used, a user holds the flashlight body 15 by hand, and can control the LED lamp beads on the LED lamp group to emit light by pressing the key switch 13, the LED light is projected to the light projection surface on the inner side of the lens 2 through the reflecting cup 3 to concentrate light, and then is projected outwards through the floodlight surface on the outer side of the lens 2, and the maximum irradiation distance can reach 400-500 m.

In the using process, the heat generated by the LED lamp set is guided into the heat-radiating copper foil, so that the heat is more easily diffused outwards through the heat-radiating holes 18 of the flashlight body 15, the heat-radiating effect is improved, and the use safety is improved.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides an explosion-proof flashlight in industrial and mining, includes flashlight fuselage (15) and lamp holder body (17), its characterized in that: a light-emitting mechanism is arranged in the flashlight body (15), the light-emitting mechanism comprises a battery component and LED printed circuit boards which are respectively arranged at two ends of the battery component, and LED lamp banks are distributed on the LED printed circuit boards; a key switch (13) for controlling the LED printed circuit board is arranged on the flashlight body (15); the LED flashlight is characterized in that the lamp holder body (17) is installed at one end of the flashlight body (15), the lamp holder body (17) is sequentially provided with the reflecting cup (3) and the lens (2) from inside to outside, the inner side surface of the lens (2) is an arc-shaped light projection surface, and the light projection surface can concentrate light emitted by the LED lamp set to one focus; the outer side surface of the lens (2) is a floodlight surface consisting of a plurality of regular hexagonal small planes, and the floodlight surface can scatter light emitted by the LED lamp group to the periphery.

2. The industrial and mining explosion-proof flashlight of claim 1, wherein: the lamp holder body (17) comprises a lamp holder front cover (14) and a lamp holder rear cover (16) which are detachably connected with each other, the lens (2) is installed on the lamp holder front cover (14), and a front cover sealing ring (1) is arranged between the lens (2) and the lamp holder front cover (14).

3. The industrial and mining explosion-proof flashlight of claim 1, wherein: the LED lamp group is composed of a plurality of LED lamp beads, and the LED lamp beads are distributed on the LED printed circuit board in an annular array mode.

4. The industrial and mining explosion-proof flashlight of claim 1, wherein: the battery pack comprises a battery support (7) and a lithium battery (6), the battery support (7) is fixedly installed in the flashlight body (15), and the lithium battery (6) is installed in the battery support (7).

5. The industrial and mining explosion-proof flashlight of claim 1, wherein: the LED printed circuit board is characterized in that a front copper foil and a back copper foil are respectively covered on two sides of the LED printed circuit board, the front copper foil is a heat dissipation copper foil, a through hole is formed in the LED printed circuit board, and heat conduction copper adhesive for mutually connecting the front copper foil and the back copper foil is arranged in the through hole.

6. The industrial and mining explosion-proof flashlight of claim 5, wherein: the flashlight body (15) is densely provided with heat dissipation holes (18), and the outer side of the flashlight body (15) is provided with corrugated concave grains (19).