CN211176371U - Explosion-proof handheld flashlight - Google Patents

Abstract

The utility model relates to an L ED lamps and lanterns lighting technology field, concretely relates to explosion-proof handheld flashlight, including lens assembly, light source assembly, battery assembly and the afterbody assembly that connects gradually, and through the improvement to the battery assembly, reform transform into the two poles of the earth at original battery both ends, two contact surfaces of present battery one end, three contact surface of other end, and the contact surface is connected with corresponding contact respectively, the corresponding formation electric return circuit, solved the problem that present flashlight adopted shell structure as the circuit, and shell structure does not act as the circuit, contact surface oxidation between the shell just can not influence the circuit use, simultaneously, shell structure does not act as the circuit, when breaking down in the lamp body, can not make the shell produce hidden danger such as spark, in addition, the shell of present flashlight generally adopts full metal casing, when shell structure does not act as the circuit, full metal casing is also difficult for producing static harm, and has good thermal diffusivity, prolong the life of this flashlight.

Description

Explosion-proof handheld flashlight

Technical Field

The utility model relates to an L ED lamps and lanterns illumination technical field, more specifically say, relate to an explosion-proof type hand-held type flashlight.

Background

L ED flashlight is a handheld lighting device, because of its simple structure, portable, by more and more users 'use, has good application prospect in the market, with L ED flashlight application range more and more extensive, part L ED flashlight also is applied to the place that has explosion-proof requirement, has also put forward higher requirement to L ED flashlight's performance.

1) The shells of the lamp holder, the lamp tail and the like of the explosion-proof lamp are connected by threads, the connection part can be oxidized after a long time, the oxide layer is equal to a large resistor in an electric loop, under the condition, the brightness of the lamp is reduced, and meanwhile, energy is wasted invisibly.

2) In explosion-proof requirements, the metal shell cannot be used as an electrode circuit, and aims to prevent accident potential caused by spark or static electricity generated by damage of an internal electric circuit.

3) The battery can consume the reduction gradually in the use, after energy consumption, need unpack the shell and take out the battery and just can charge for the battery, and the operation is loaded down with trivial details, brings a lot of inconveniences for the user.

SUMMERY OF THE UTILITY MODEL

The utility model provides an among the prior art, an explosion-proof type hand-held type flashlight is provided, and shell structure in this flashlight does not regard as the electrode circuit, has avoided causing the accident hidden danger because of inside electric circuit damages production spark or static.

The utility model adopts the following technical scheme:

an explosion-proof handheld flashlight comprises a lens assembly, a light source assembly, a battery assembly and a tail assembly which are connected in sequence;

the light source assembly comprises a front contact plate, the front contact plate is arranged at the tail end of the light source assembly, and a first front contact and a second front contact are respectively arranged on the front contact plate;

the tail assembly comprises a tail contact plate, the tail contact plate is arranged at the front end of the tail assembly, and a first tail contact, a second tail contact and a third tail contact are respectively arranged on the tail contact plate;

the battery assembly comprises a battery, a first PCB and a second PCB, wherein the first PCB and the second PCB are arranged at two ends of the battery;

the second PCB comprises a third contact surface, a fourth contact surface and a fifth contact surface; the third contact surface, the fourth contact surface and the fifth contact surface are correspondingly in contact connection with the first tail contact, the second tail contact and the third tail contact.

Furthermore, the lens assembly, the light source assembly and the battery assembly are sequentially arranged in the front end shell; the tail assembly is arranged in the tail shell, and the front shell is fixedly connected with the tail shell in a sealing way;

the front end shell and the tail end shell are both of tubular structures with openings at two ends, and the tail end of the tail end shell is provided with a limiting end face.

Further, the lens assembly comprises a lens compression ring and a glass sheet; the lens compression ring and the glass sheet are of an integrated structure and are arranged on the front end shell.

Furthermore, the lens compression ring is fixedly connected with the front end shell in a sealing mode.

Further, the light source assembly also comprises a reflecting cup, a light source plate and a light source mounting rack,

the reflecting cup is of a horn-shaped structure with openings at two ends, and comprises a large opening end and a small opening end; the corresponding installation of macrostoma end is in the lens assembly, installs the light source mounting bracket on the outer wall of osculum end, and osculum end department installs the light source board, and the light source board is spacing to be installed in the light source mounting bracket, and the contact plate before the terminal installation of light source mounting bracket, electric connection between light source board and the preceding contact plate, and the contact surface between light source mounting bracket and the preceding contact plate is the insulating surface.

Further, the light source assembly further comprises a lamp bead pressing sheet, and the light source board is connected with the small opening end of the reflection cup through the lamp bead pressing sheet.

Furthermore, the light source board is provided with a row pin, and the light source board is electrically connected with the front contact plate through the row pin.

Furthermore, the tail assembly comprises a silica gel tail plug, a sealing pressure ring, a charging key plate, an insulating isolation ring, a tail contact plate and a threaded pressure ring which are sequentially connected in a butting way;

the front end of the silica gel tail plug is arranged in the tail end shell in a penetrating mode, and the tail end face of the silica gel tail plug abuts against the limiting end face of the tail end shell; two ends of the sealing compression ring respectively abut against the front end surface of the silica gel tail plug and the tail end surface of the charging key plate; two ends of the insulating isolation ring respectively abut against the front end surface of the charging key board and the tail end surface of the tail contact board;

the front end face of the tail contact plate abuts against the threaded compression ring, and the threaded compression ring is in threaded connection with the tail end shell.

Furthermore, the silica gel tail plug is made of elastic materials and comprises a pressing part and a charging part, the pressing part is provided with a second boss, and the charging part is provided with a charging port;

the button board charges including being used for with the plug-in charging plug connector who charges and the circuit board that is equipped with the switch, charges plug connector and circuit board electric connection, and charges plug connector and charge mouthful and correspond, and the switch on the circuit board corresponds with the second boss of pressing the portion.

Further, the battery includes a positive electrode and a negative electrode;

the positive electrode is electrically connected with the first contact surface, and the negative electrode is electrically connected with the fourth contact surface; the first contact surface and the third contact surface, and the second contact surface and the fifth contact surface are electrically connected.

Compared with the prior art, the utility model discloses the beneficial effect who obtains does:

1) the utility model discloses explosion-proof type hand-held type flashlight in, through the improvement to the battery assembly, the two poles of the earth at original battery both ends are changed into, two contact surfaces of present battery one end, the three contact surface of the other end, and the contact surface is connected with the contact point that corresponds respectively, and the formation electric return circuit that corresponds has solved current flashlight and has adopted the problem of shell structure as the circuit. The shell structure is not used as a circuit, and the use of the circuit cannot be influenced by the oxidation of the contact surface between the shells; meanwhile, the shell structure is not used as a circuit, so that when a fault occurs in the lamp body, the shell cannot generate potential safety hazards such as sparks and the like; in addition, the shell of the existing flashlight generally adopts an all-metal shell, and when the shell structure is not used as a circuit, the all-metal shell is not easy to generate static electricity hazard, has good heat dissipation performance, and prolongs the service life of the flashlight.

2) And sealing rings are adopted at multiple positions for sealing, so that the whole sealing performance is good.

3) The structure of the tail assembly in the flashlight is recombined, namely the tail end of the tail assembly is provided with the silica gel tail plug, the charging can be realized by opening the silica gel tail plug instead of disassembling the shell structure of the flashlight and taking out the battery, and the charging is convenient.

Drawings

For a clearer explanation of the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of an explosion-proof handheld flashlight of the present invention;

fig. 2 is a first cross-sectional view of the explosion-proof handheld flashlight of the present invention;

FIG. 3 is a second cross-sectional view of the explosion-proof handheld flashlight of the present invention;

FIG. 4 is a schematic view of a portion of the structure of FIG. 2;

FIG. 5 is a schematic perspective view of the silica gel tail plug of FIG. 1;

fig. 6 is a schematic perspective view of the front contact plate in fig. 1;

FIG. 7 is a schematic perspective view of the tail contact plate of FIG. 1;

FIG. 8 is a schematic diagram of the electrical connections between the battery and the first and second PCBs of FIG. 1;

the device comprises a lens assembly 1, a lens pressure ring 11 and a glass sheet 12;

the light source module comprises a light source assembly 2, a front contact plate 21, a first front contact 211, a second front contact 212, a light reflecting cup 22, a large-opening end 221, a small-opening end 222, a light source plate 23, a pin header 231, a light source mounting frame 24, a limiting baffle 241 and a lamp bead pressing sheet 25;

the battery assembly 3, the battery 31, the first PCB 32, the first contact surface 321, the second contact surface 322, the second PCB 33, the third contact surface 331, the fourth contact surface 332, and the fifth contact surface 333;

the tail assembly 4, the tail contact plate 41, the first tail contact 411, the second tail contact 412, the third tail contact 413, the silica gel tail plug 42, the pressing part 421, the second boss 4211, the charging part 422, the charging port 4221, the sealing press ring 43, the charging key plate 44, the charging plug connector 441, the circuit board 442, the insulating isolating ring 45 and the threaded press ring 46;

a front end housing 5, a first boss 51;

a tail end shell 6 and a limit end surface 61;

the finger presses the location 7.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the present application, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The present invention will be discussed in detail below with reference to fig. 1 to 8 and specific embodiments:

as shown in fig. 1 to 3: an explosion-proof handheld flashlight comprises a lens assembly 1, a light source assembly 2, a battery assembly 3 and a tail assembly 4 which are connected in sequence.

The light source assembly 2 includes a front contact plate 21, the front contact plate 21 is disposed at an end of the light source assembly 2, and the front contact plate 21 is disposed with a first front contact 211 and a second front contact 212. The tail assembly 4 includes a tail contact plate 41, the tail contact plate 41 is installed at the front end of the tail assembly 4, and the tail contact plate 41 is provided with a first tail contact 411, a second tail contact 412 and a third tail contact 413, respectively.

The battery assembly 3 includes a battery 31, and a first PCB 32 and a second PCB 33 mounted at two ends of the battery 31, and the first PCB 32 and the second PCB 33 are electrically connected to two poles of the battery 31 respectively. The first PCB 32 includes a first contact surface 321 and a second contact surface 322, and the first contact surface 321 and the second contact surface 322 are respectively in contact connection with the first front contact 211 and the second front contact 212; the first contact surface 321 and the second contact surface 322 are isolated and not communicated, as in this embodiment: the first contact surface 321 and the second contact surface 322 are designed to have a concentric ring structure, as shown in fig. 8. The second PCB 33 includes a third contact surface 331, a fourth contact surface 332, and a fifth contact surface 333; the third contact surface 331, the fourth contact surface 332 and the fifth contact surface 333 are in contact connection with the first tail contact 411, the second tail contact 412 and the third tail contact 413; the third contact surface 331, the fourth contact surface 332, and the fifth contact surface 333 are isolated and not connected, as in this embodiment: the third contact surface 331, the fourth contact surface 332 and the fifth contact surface 333 are designed to have a concentric ring structure, as shown in fig. 8.

Specifically, the first front contact 211, the second front contact 212, the first tail contact 411, the second tail contact 412, and the third tail contact 413 are elastic contact contacts, and are electrically connected to the first PCB 32 and the second PCB 33 at two ends of the battery 31.

The utility model discloses explosion-proof type hand-held type flashlight in, through the improvement to battery assembly 3, the two poles of the earth at original battery both ends are changed into, two contact surfaces of present battery one end, the three contact surface of the other end, and the contact surface is connected with the contact point that corresponds respectively, and the electric return circuit of formation that corresponds has solved current flashlight and has adopted the problem of shell structure as the circuit. The shell structure is not used as a circuit, and the use of the circuit cannot be influenced by the oxidation of the contact surface between the shells; meanwhile, the shell structure is not used as a circuit, so that when a fault occurs in the lamp body, the shell cannot generate potential safety hazards such as sparks and the like; in addition, the shell of the existing flashlight generally adopts an all-metal shell, and when the shell structure is not used as a circuit, the all-metal shell is not easy to generate static electricity hazard, has good heat dissipation performance, and prolongs the service life of the flashlight.

Further, the battery 31 includes a positive electrode 311 and a negative electrode 312. The positive electrode 311 is electrically connected to the first contact surface 321, and the negative electrode 312 is electrically connected to the fourth contact surface 332; the first contact surface 321 is electrically connected to the third contact surface 331, and the second contact surface 322 is electrically connected to the fifth contact surface 333. Simultaneously, the first PCB board 32, the second PCB board 33 and the battery 31 are packaged together correspondingly to form an integrated structure, so that the insulation protection work of the battery 31 is done, the situations such as electric leakage are avoided, and the whole service life of the battery is prolonged.

Further, as shown in fig. 1 to 4, the lens assembly 1, the light source assembly 2 and the battery assembly 3 are sequentially installed in the front end housing 5; the tail assembly 4 is arranged in the tail shell 6, and the front shell 5 is fixedly connected with the tail shell 6 in a sealing way. The front end shell 5 and the tail end shell 6 are both of tubular structures with openings at two ends, all aluminum alloy shell structures are adopted, and the tail end of the tail end shell 6 is provided with a limiting end face 61. When the battery assembly is used, the battery assembly 3 is firstly arranged in the front end shell 5, the tail end assembly 4 is arranged in the tail end shell 6, and then the front end shell 5 and the tail end shell 6 are fixedly connected in a sealing mode. It should be noted that, the sealing and fixing connection: the connection realizes the fixation between the connecting pieces and effectively ensures the sealing performance between the connecting pieces. The realization mode of sealed fixed connection is also diversified, and in this embodiment, realize sealed through O type sealing washer between front end shell 5 and tail end shell 6, the leakproofness is good.

Further, as shown in fig. 2 to 3, the lens assembly 1 includes a lens pressing ring 11 and a glass plate 12. The lens press ring 11 and the glass plate 12 are of an integrated structure and are mounted at the front end of the front end housing 5. The implementation manner of fixedly mounting the lens assembly 1 at the front end of the front end housing 5 is diversified, and in this embodiment, the lens assembly 1 and the front end housing 5 are fixedly connected in a sealing manner by using an O-ring, so that the connection reliability and the connection tightness are enhanced. And the lens compression ring 11 and the glass sheet 12 are fixedly sealed into an integrated structure by resin, so that the sealing property is enhanced.

Further, the light source assembly 2 further comprises a reflective cup 22, a lamp bead pressing sheet 25, a light source board 23 and a light source mounting frame 24. The reflecting cup 22 is of a horn structure with two open ends, and the reflecting cup 22 includes a large opening end 221 and a small opening end 222. The big-mouth end 221 abuts against the tail end face of the glass sheet 12, and the outer wall surface of the small-mouth end 221 is fixedly provided with the light source mounting frame 24; in this embodiment, the outer wall surface of the small end 221 is in threaded connection with the inner wall surface of the light source mounting bracket 24, so as to realize the fixed connection between the reflective cup 22 and the light source mounting bracket 24. The light source mounting bracket 24 is a tubular structure with openings at two ends, and a limiting baffle 241 is arranged in the tubular structure and used for limiting the mounting position of the light source plate 23. Lamp pearl preforming 25 and light source board 23 are installed in proper order to the end of microcurrent end 222, and the terminal surface of light source board 23 supports on limit baffle 241, and fixed mounting has row needle 231 on light source board 23, and row needle 231 runs through electric connection between limit baffle 241 and preceding contact plate 21, realizes electric connection between light source board 23 and preceding contact plate 21. It should be noted that, the contact surface between the light source mounting frame 24 and the front contact plate 21 is an insulating surface, and both the contact surfaces are provided with an insulating heat conduction layer. The front contact plate 21 is mounted on the end of the light source mounting bracket 24, and both ends of the front contact plate 21 respectively abut against the end surface of the light source mounting bracket 24 and the first boss 51 in the front housing 5. The light source assembly 2 adopting the structural design has a simple and compact integral structure and is convenient to carry when going out; the lamp bead pressing sheet 25 is used for protecting the lamp beads and electrically insulating the lamp beads and enhancing the safety; the light source board 23 radiates heat through the light source mounting bracket 24, thereby enhancing heat radiation.

Further, tail assembly 4 includes silica gel tail plug 42, sealed clamping ring 43, the key board 44 that charges, insulating spacer ring 45, tail contact plate 41 and the screw clamping ring 46 that set gradually. The front end of the silica gel tail plug 42 is installed in the tail end housing 6 in a penetrating manner, and the tail end surface of the silica gel tail plug 42 abuts against the limiting end surface 61 at the tail end of the tail end housing. The silica gel tail plug 42 is connected with the charging key plate 44 through the sealing compression ring 43, that is, two ends of the sealing compression ring 43 respectively abut against the front end face of the silica gel tail plug 42 and the tail end face of the charging key plate 44. The charge key plate 44 is connected to the tail contact plate 41 through an insulating isolation ring 45, that is, two ends of the insulating isolation ring 45 respectively abut against the front end surface of the charge key plate 44 and the tail end surface of the tail contact plate 41. The tail contact plate 41 is fixedly installed in the tail end shell 6, and the fixed installation can be realized in a manner that the front end surface of the tail contact plate 41 abuts against the threaded press ring 46, and the threaded press ring 46 is in threaded connection with the tail end shell 6; an elastic pressing ring can be further sleeved on the outer wall surface of the tail contact plate 41, and the elastic pressing ring is squeezed into the space between the tail contact plate 41 and the tail shell 6, so that the fixed connection between the tail contact plate 41 and the tail shell 6 is realized. When the device is used, the spiral of the threaded compression ring 46 generates pressure, the pressure is transmitted to the contact surface between the sealing compression ring 43 and the silica gel tail plug 42 and the contact surface between the charging port 4221 and the silica gel tail plug 42 step by step through the threaded compression ring 46, the tail contact plate 41, the insulating isolation ring 45 and the charging key plate 44, and sealing is achieved by compressing the silica gel tail plug 42.

Further, the silicone rubber tail plug 42 is made of an elastic material (the silicone rubber tail plug 42 may be made of rubber, plastic, or the like). Silica gel tail plug 42 includes according to portion 421 and the portion 422 that charges, and according to portion 421 sets up second boss 4211, the portion 422 that charges sets up the mouth 4221 that charges, and the mouth 4221 that charges fills in and covers the plug connector 441 that charges, has guaranteed the leakproofness of the mouth that charges, simultaneously, opens silica gel tail plug 42 and can charge, need not unpack the shell structure of flashlight apart and take out the battery, and it is convenient to charge. Because the silica gel tail plug 42 is made of elastic material, the silica gel tail plug 42 can be restored to the shape and position before being pressed by virtue of the elasticity of the silica gel tail plug 42.

The charging key plate 44 includes a charging plug connector 441 for connecting with an inserted charging plug, and a circuit board 442 provided with a switch, the charging plug connector 441 is electrically connected to the circuit board 442, the charging plug connector 441 corresponds to the charging port 4221, and the switch on the circuit board 442 corresponds to the second boss 4211 of the pressing portion 421.

Wherein, the charging plug connector 441 is used for forming a connection with the inserted charging plug to charge the battery in the flashlight. The charging plug connector 441 is configured to mate with a mating plug, the wires connected thereto not being shown in the drawings, as designed by the person skilled in the art. When the circuit board 442 is used, a user presses the pressing portion 421 of the silicone rubber tail plug 42 to drive the second boss 4211 on the pressing portion 421 to move towards a direction close to the circuit board 442, so as to touch a switch on the circuit board 442. After releasing the hand, the silicone rubber tail plug 42 is restored to the shape and position before being pressed under the action of the elasticity of the silicone rubber tail plug.

It is explicated that need supplement, the utility model discloses well front end shell 5's front end department sets up three finger and presses position 7, and the finger presses 7 equipartitions on front end shell 5's ring direction for front end shell department grips comfortablely, accords with ergonomic design more.

In summary, the explosion-proof handheld flashlight of the utility model changes the circuit into the full internal circuit through the technical means improvement, thereby solving the problem of external wiring of the flashlight and simultaneously solving the problem of influence on the circuit caused by shell oxidation; the problem that the battery can be charged without taking out the battery is solved through the internal structure recombination. And the flashlight adopts O-shaped sealing rings to carry out sealing treatment at a plurality of positions, the protection grade reaches IP65, and the safety factor is high.

The present invention has been further described with reference to specific embodiments, but it should be understood that the specific description herein should not be construed as limiting the spirit and scope of the present invention, and that various modifications to the above-described embodiments, which would occur to persons skilled in the art after reading this specification, are within the scope of the present invention.

Claims (10)

1. An explosion-proof handheld flashlight, its characterized in that: the LED lamp comprises a lens assembly, a light source assembly, a battery assembly and a tail assembly which are connected in sequence;

the light source assembly comprises a front contact plate, the front contact plate is arranged at the tail end of the light source assembly, and a first front contact point and a second front contact point are respectively arranged on the front contact plate;

the tail assembly comprises a tail contact plate, the tail contact plate is arranged at the front end of the tail assembly, and a first tail contact, a second tail contact and a third tail contact are respectively arranged on the tail contact plate;

the battery assembly comprises a battery, and a first PCB and a second PCB which are arranged at two ends of the battery, wherein the first PCB comprises a first contact surface and a second contact surface, and the first contact surface and the second contact surface are respectively in contact connection with the first front contact and the second front contact;

the second PCB board comprises a third contact surface, a fourth contact surface and a fifth contact surface; the third contact surface, the fourth contact surface and the fifth contact surface are correspondingly in contact connection with the first tail contact, the second tail contact and the third tail contact.

2. The explosion-proof hand-held flashlight of claim 1, wherein: the lens assembly, the light source assembly and the battery assembly are sequentially arranged in the front end shell; the tail assembly is arranged in the tail shell, and the front shell is fixedly connected with the tail shell in a sealing way;

the front end shell and the tail end shell are both of tubular structures with openings at two ends, and the tail end of the tail end shell is provided with a limiting end face.

3. The explosion-proof hand-held flashlight of claim 2, wherein: the lens assembly comprises a lens compression ring and a glass sheet; the lens compression ring and the glass sheet are of an integrated structure and are arranged on the front end shell.

4. The explosion-proof handheld flashlight of claim 3, wherein: the lens compression ring is fixedly connected with the front end shell in a sealing mode.

5. The explosion-proof handheld flashlight of claim 3, wherein: the light source assembly also comprises a reflecting cup, a light source plate and a light source mounting rack,

the reflecting cup is of a horn-shaped structure with openings at two ends, and comprises a large opening end and a small opening end; the installing that macrostoma end corresponds is in the lens assembly, install on the outer wall of osculum end the light source mounting bracket, osculum end department installs the light source board, just the light source board is spacing to be installed in the light source mounting bracket, install the end of light source mounting bracket preceding contact plate, the light source board with electric connection between the preceding contact plate, just the light source mounting bracket with contact surface between the preceding contact plate is insulating face.

6. The explosion-proof handheld flashlight of claim 5, wherein: the light source assembly further comprises a lamp bead pressing sheet, and the light source board is connected with the small opening end of the reflection cup through the lamp bead pressing sheet.

7. The explosion-proof handheld flashlight of claim 5, wherein: the light source board is provided with a row of pins, and the light source board is electrically connected with the front contact plate through the row of pins.

8. The explosion-proof handheld flashlight of claim 5, wherein: the tail assembly comprises a silica gel tail plug, a sealing pressure ring, a charging key plate, an insulating isolation ring, a tail contact plate and a threaded pressure ring which are sequentially connected in a butting manner;

the front end of the silica gel tail plug is arranged in the tail end shell in a penetrating mode, and the tail end face of the silica gel tail plug abuts against the limiting end face of the tail end shell; two ends of the sealing compression ring respectively abut against the front end face of the silica gel tail plug and the tail end face of the charging key plate; two ends of the insulating isolation ring respectively abut against the front end surface of the charging key board and the tail end surface of the tail contact board;

the front end face of the tail contact plate abuts against the threaded compression ring, and the threaded compression ring is in threaded connection with the tail end shell.

9. The explosion-proof handheld flashlight of claim 8, wherein: the silica gel tail plug is made of elastic materials and comprises a pressing part and a charging part, the pressing part is provided with a second boss, and the charging part is provided with a charging port;

the charging key board comprises a charging plug connector and a circuit board, wherein the charging plug connector is used for being connected with an inserted charging plug, the circuit board is provided with a switch, the charging plug connector is electrically connected with the circuit board, the charging plug connector corresponds to the charging port, and the switch on the circuit board corresponds to the second boss of the pressing portion.

10. An explosion proof hand held flashlight as claimed in any one of claims 1 to 9 wherein: the battery includes a positive electrode and a negative electrode;

the positive electrode is electrically connected with the first contact surface, and the negative electrode is electrically connected with the fourth contact surface; the first contact surface and the third contact surface, and the second contact surface and the fifth contact surface are electrically connected.

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