CN114321754A - Electric torch - Google Patents

Abstract

The invention relates to the technical field of lighting, in particular to a flashlight, which comprises a barrel body, a lamp holder, a light-emitting component, a heat-radiating component reflecting cover and a tail cover, wherein a switch and a light-guiding part are integrally arranged on the barrel body, the barrel body is provided with a containing hole, and a power supply is arranged in the containing hole; the lamp cap is connected to one end of the cylinder body, a first sealing ring is arranged at the joint of the lamp cap and the cylinder body, and the lamp cap is provided with an accommodating cavity; the light-emitting component is arranged in the accommodating cavity and is electrically connected with the power supply; the heat dissipation assembly is arranged in the accommodating cavity and is abutted against the light emitting assembly; the reflector is arranged in the accommodating cavity and abutted against the light-emitting component, and can reflect light emitted by the light-emitting component; the tail cover is connected to the other end of the cylinder body, and a second sealing ring is arranged between the tail cover and the cylinder body. The flashlight provided by the invention has a good and quick heat dissipation effect, and the flashlight can meet the waterproof sealing requirement in a complex environment because the flashlight body is integrally provided with the switch and the light guide part, and the first sealing ring and the second sealing ring are respectively arranged at the joint of the lamp cap and the tail cover.

Description

Electric torch

Technical Field

The invention relates to the technical field of illumination, in particular to a flashlight.

Background

Along with the continuous improvement of performance requirements of people on the flashlight, the high-power LED is adopted in the prior art to meet the market requirements, when strong light illumination is met, the flashlight can generate large heat during working, if the LED or other parts of the flashlight generate high temperature, the flashlight can be caused to fail, and safety accidents can be caused seriously.

In addition, the sealing performance of the flashlight in the prior art is poor, the flashlight is usually sealed only by adopting a sealing ring as a main sealing means, the requirement of waterproof sealing is difficult to meet in a complex environment, and because some heat dissipation holes are formed in the flashlight barrel body in order to improve the heat dissipation performance, the sealing and waterproof performance of the flashlight is reduced.

Therefore, in order to provide a high-power flashlight with high heat dissipation performance and good waterproof sealing performance, a flashlight with good performance is urgently needed.

Disclosure of Invention

The invention aims to provide a flashlight which has high-efficiency heat dissipation performance and good waterproof sealing performance.

In order to achieve the purpose, the invention adopts the following technical scheme:

a flashlight, comprising:

the light guide device comprises a barrel body, a light guide part and a switch, wherein the barrel body is integrally provided with a switch and the light guide part, the barrel body is provided with a containing hole, and a power supply is arranged in the containing hole;

the lamp holder is connected to one end of the cylinder body, a first sealing ring is arranged between the lamp holder and the cylinder body, and the lamp holder is provided with an accommodating cavity;

the light-emitting component is arranged in the accommodating cavity and is electrically connected with the power supply;

the heat dissipation assembly is arranged in the accommodating cavity and abutted against the light emitting assembly;

the reflecting cover is arranged in the accommodating cavity, abuts against the light-emitting component and can reflect light emitted by the light-emitting component;

the tail cover is connected to the other end of the cylinder body, and a second sealing ring is arranged between the tail cover and the cylinder body.

Preferably, the heat dissipation assembly includes a heat dissipation member and a heat spreader, and the light emitting assembly is disposed between the heat dissipation member and the heat spreader.

Preferably, the light emitting module includes a first light emitting element and a first circuit board, the first circuit board is disposed between the heat dissipating member and the heat spreader and electrically connected to the power supply, and the first light emitting element is disposed on the first circuit board.

Preferably, the heat sink is annular and has a hollow structure, and the reflector abuts against the inner wall of the heat sink.

Preferably, a positioning bulge is convexly arranged on the cavity wall of the accommodating cavity, a positioning groove is formed in the heat radiating piece, and the positioning groove is clamped in the positioning bulge.

Preferably, the lamp cap comprises a lamp housing and a lamp cover, and the lamp cover is connected to the lamp housing to enclose the accommodating cavity.

Preferably, the lamp housing has a plurality of heat dissipating fins on an outer peripheral surface thereof.

Preferably, one end of the lamp housing, which is far away from the lamp cover, is provided with a switching port, and the barrel body is sleeved with the switching port.

Preferably, the lamp further comprises a first fixing member, and the first fixing member sequentially penetrates through the heat dissipation assembly, the light emitting assembly and the lamp housing and is connected to the cylinder body so as to connect the lamp cap to the cylinder body.

Preferably, the power supply comprises a battery pack and a second circuit board, the second circuit board is located in the accommodating hole, one end of the second circuit board is connected to the tail cover, the battery pack is arranged on the second circuit board, a key and a second light-emitting piece are further arranged on the second circuit board, the key is located below the switch, the second light-emitting piece is located below the light-guiding piece, and the light-emitting assembly is electrically connected to the second circuit board.

The invention has the beneficial effects that: according to the flashlight provided by the invention, the high-power light-emitting component can generate larger heat when emitting stronger light beams to work for a long time, the heat radiation component can timely radiate the heat generated by the light-emitting component, the flashlight has a good and rapid heat radiation effect, the barrel body is integrally provided with the switch and the light guide piece, no other redundant holes are formed in the periphery of the barrel body, and the first sealing ring and the second sealing ring are respectively arranged at the joint of the lamp holder and the tail cover, so that the flashlight has good waterproof sealing performance, and the high waterproof sealing requirement under the complex environment can be met.

Drawings

FIG. 1 is an exploded view of the overall construction of a flashlight of the present invention;

FIG. 2 is a cross-sectional view of the overall construction of a flashlight of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is an enlarged view of a portion of FIG. 2 at B;

FIG. 5 is a cross-sectional view of a flashlight of the present invention at the base of the flashlight;

FIG. 6 is a cross-sectional view of a flashlight of the present invention with no additional components mounted to the base;

FIG. 7 is a view of the internal mounting of the lamp head of a flashlight of the present invention;

FIG. 8 is a structural view of the lamp housing of a flashlight of the present invention;

FIG. 9 is an exploded view of the power supply configuration in a flashlight of the present invention;

FIG. 10 is a cross-sectional view of a flashlight of the present invention shown in the base of the flashlight;

FIG. 11 is a cross-sectional view of a flashlight of the present invention with no additional components attached to the base;

FIG. 12 is a view showing the structure of the interior of the base of a flashlight of the second embodiment of the present invention.

In the figure:

1. a barrel body; 11. a switch; 111. a pressing part; 112. a switching part; 113. a hard member; 12. a light guide; 13. a power source; 131. a battery pack; 132. a second circuit board; 1321. pressing a key; 1322. a second light emitting member; 100. an accommodation hole;

2. a lamp cap; 21. a lamp housing; 22. a lamp cover; 211. a first seal ring; 212. a heat sink; 213. a transfer port; 214. a third seal ring; 221. positioning the projection; 200. an accommodating chamber;

3. a light emitting assembly; 31. a first light emitting element; 32. a first circuit board;

4. a heat dissipating component; 41. a heat sink; 42. a soaking part;

5. a reflector;

6. a tail cover; 61. a second seal ring;

7. a first fixing member.

Detailed Description

The technical scheme of the invention is further explained by combining the attached drawings and the embodiment. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements associated with the present invention are shown in the drawings.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The first embodiment is as follows:

as shown in fig. 1 to 9, the present invention provides a flashlight, which includes a barrel 1, a lamp cap 2, a light emitting component 3, a heat dissipating component 4, a reflector 5 and a tail cover 6, wherein the barrel 1 is integrally provided with a switch 11 and a light guiding member 12, the barrel 1 is provided with an accommodating hole 100, and a power supply 13 is disposed in the accommodating hole 100; the lamp holder 2 is connected to one end of the cylinder body 1, a first sealing ring 211 is arranged at the joint of the lamp holder 2 and the cylinder body 1, and the lamp holder 2 is provided with an accommodating cavity 200; the light emitting component 3 is arranged in the accommodating cavity 200 and is electrically connected with the power supply 13; the heat dissipation component 4 is arranged in the accommodating cavity 200 and is abutted against the light emitting component 3; the reflecting cover 5 is arranged in the accommodating cavity 200 and abutted against the light-emitting component 3, and can reflect light emitted by the light-emitting component 3; the tail cover 6 is connected with the other end of the cylinder body 1, and a second sealing ring 61 is arranged between the tail cover 6 and the cylinder body 1.

The flashlight that this embodiment provided, at powerful light emitting component 3 at the long-time during operation of the strong light beam of transmission, produce under the great thermal condition, heat sink 4 can be timely dispels the heat that light emitting component 3 produced, possess good quick radiating effect, and because 1 an organic whole of stack shell sets up switch 11 and leaded light 12, 1 periphery of stack shell does not have other unnecessary trompils, and set up first sealing washer 211 and second sealing washer 61 respectively in lamp holder 2 and 6 junctions of tailcap, make the flashlight possess good waterproof sealing performance, can satisfy the waterproof sealing requirement under the higher complex environment of waterproof sealing performance.

Specifically, the heat dissipation assembly 4 includes the heat dissipation member 41 and the heat spreader 42, and the light emitting assembly 3 is disposed between the heat dissipation member 41 and the heat spreader 42, and conducts heat to the light emitting assembly 3 from both sides to improve the heat dissipation effect, and in this embodiment, the heat dissipation member 41 and the heat spreader 42 are preferably made of metal material, preferably copper, so that the heat dissipation and conduction effect is better.

Furthermore, the light emitting assembly 3 includes a first light emitting element 31 and a first circuit board 32, the first circuit board 32 is disposed between the heat dissipating element 41 and the soaking element 42 and electrically connected to the power supply 13, the first light emitting element 31 is disposed on the first circuit board 32, in this embodiment, the first light emitting element 31 is a high power LED, the luminance is high, the LED can be applied to lighting in a complex environment, the LED is disposed on the first circuit board 32 in a penetrating manner and directly attached to the soaking element 42 for heat dissipation, so as to ensure fast and efficient heat conduction, a wire guide hole is further disposed on the first circuit board 32, and the wire guide hole is used for fixing an electric wire on the circuit board.

Specifically, the heat dissipation member 41 is annular and has a hollow structure, the reflector 5 abuts against the inner wall of the heat dissipation member 41, and the inner ring of the heat dissipation member 41 is inclined and is matched with the arc surface of the outer wall of the reflector 5, so that the reflector 5 can also assist in heat transfer and heat dissipation.

Specifically, the cavity wall of the accommodating cavity 200 is convexly provided with a positioning protrusion 221, the heat dissipation member 41 is provided with a positioning groove, the positioning groove is clamped to the positioning protrusion 221, and when the heat dissipation member 41, the first circuit board 32 and the soaking member 42 are placed, the positioning groove in the heat dissipation member 41 can limit the rotation of the heat dissipation member 41, so that the stability of the lamp head 2 is enhanced.

Specifically, lamp holder 2 includes lamp body 21 and lamp lid 22, lamp lid 22 connects and encloses into holding chamber 200 in lamp body 21, lamp lid 22 includes the check ring and sets up the printing opacity piece on the check ring, in this embodiment, the check ring periphery is provided with the screw thread, make the check ring can spiro union in lamp body 21, in other embodiments, check ring and lamp body 21 also can be connected through fixings such as joint connection or adhesive bonding or through bolts, do not do too much restriction here, still be provided with third sealing washer 214 between check ring and the lamp body 21, further promote the leakproofness of flashlight, the printing opacity piece can use glass material or the better plastic material preparation of transmissivity, do not do too much restriction here.

Specifically, the outer peripheral face of the lamp housing 21 is provided with a plurality of radiating fins 212, the radiating fins 212 are arranged at equal intervals to form a plurality of radiating grooves, the lamp housing 21 is preferably made of an aluminum alloy material, the lamp housing is integrally formed by die casting, turning and milling and the like, the radiating area and the radiating effect of the lamp housing 21 are further improved by the arrangement of the radiating fins 212 and the radiating grooves, the arranging directions of the radiating fins 212 and the radiating grooves are the same as the direction of heat flow, the size of the radiating grooves also accords with the gas flow design, and the lamp housing has a good flow effect no matter whether the heat flow is dispersed from inside to outside or from bottom to top.

Specifically, adapter 213 has been seted up to the one end that lamp body 21 deviates from lamp lid 22, and stack shell 1 is located to adapter 213 cover, and in this embodiment, adapter 213 sets up to the round mouth, and during stack shell 1 tip part penetrated the round mouth when the assembly, the round mouth inner wall provided the direction to stack shell 1, the assembly positioning of being convenient for, and made lamp body 21 and stack shell 1 part connect the overlap, and waterproof sealing performance is better.

Specifically, the flashlight lamp further comprises a first fixing member 7, the first fixing member 7 sequentially penetrates through the heat dissipation assembly 4, the light emitting assembly 3 and the lamp housing 21 and is connected to the barrel 1 to connect the lamp cap 2 to the barrel 1, a limiting hole column is arranged on the wall of the accommodating hole 100 of the barrel 1, a threaded hole is formed in the limiting hole column, the first fixing member 7 is screwed in the threaded hole, the limiting hole column is continuously arranged inside the barrel 1, threaded holes are formed in two ends of the limiting hole column, the threaded hole at the other end is used for connection between the tail cover 6 and the barrel 1, the first fixing members 7 are connected with the shell of the barrel 1 well through the threaded holes, and parts inside the lamp cap 2 are also fixedly connected to the barrel 1, so that the parts inside the flashlight lamp cap 2 are more stable, the connection between the lamp cap fixing member 2 and the barrel 1 is more reliable, further, in the embodiment, the first fixing member 7 is a long bolt, the number of the limiting hole columns is four, four long bolts are respectively arranged at the joint of the lamp holder 2 and the barrel body 1 and the joint of the tail cover 6 and the barrel body 1, in other embodiments, the lamp holder 2 and the barrel body 1 and the tail cover 6 and the barrel body 1 can be directly connected in a threaded manner, and excessive limitation is not performed.

Specifically, the power supply 13 includes a battery pack 131 and a second circuit board 132, the second circuit board 132 is located in the accommodation hole 100, and one end of the second circuit board 132 is connected to the tail cover 6, the battery pack 131 is disposed on the second circuit board 132, the second circuit board 132 is further provided with a key 1321 and a second light-emitting member 1322, the key 1321 is located below the switch 11, the second light-emitting member 1322 is located below the light-guiding member 12, further, the switch 11 includes an adapter 112, a pressing portion 111 and a hard member 113, the adapter 112 can pass through a through hole formed in the barrel 1 to wrap the through hole together, the pressing portion 111 is disposed on the adapter 112, the pressing portion 111, the adapter 112 and the barrel 1 are integrally formed and connected, the pressing portion 111 is made of a flexible material, and can be made of thermoplastic materials such as TPV, TPO, or TPO, and the like, and has a good elastic deformation capability, when a user presses the pressing portion 111, the pressing portion deforms relative to the connection portion, so that the pressing portion 111 can reciprocate, furthermore, the adapter 112 has a certain radian, and different pressing rebound forces are obtained by designing different curvatures, so that the comfort degree of a user is improved when the user presses; the pressing portion 111 is provided with a hard piece 113, the hard piece is arranged on the pressing portion 111 through processes such as encapsulation and injection molding, the hard piece is located right above the key 1321, and when a user presses and drives the pressing portion 111, the hard piece moves to abut against and contact the key 1321, so that the power supply 13 of the flashlight is turned on or turned off.

In addition, the flashlight in this embodiment still includes the visor (not shown in the figure), the articulated stack shell 1 that locates of protection, and can cover and locate switch 11, the effect of visor can form a confined space with stack shell 1, be connected with stack shell 1 through the visor, make switch 11 obtain effectual protection, when not using the flashlight, can play good guard action to switch 11 button, prevent to remove or place, and the mistake touches switch 11 button in the transportation, thereby make the flashlight by the false start, also can effectually prevent that debris friction from damaging switch 11 button, the life of flashlight has been reduced. The protective cover and the cylinder body 1 can be detachably connected to the cylinder body 1 in a threaded connection, a clamping connection or a sticking connection and the like, so that excessive limitation is not required.

Still be provided with button 1321 and second light-emitting component 1322 on second circuit board 132, second light-emitting component 1322 is located leaded light 12 below, leaded light 12 includes a plurality of leaded light posts, a plurality of leaded light posts are all worn to establish on stack shell 1, leaded light post can transmit the light that second light-emitting component 1322 sent to stack shell 1 surface, a charge-discharge state for the flashlight, in this embodiment, second light-emitting component 1322 is a plurality of pilot lamps, a plurality of leaded light posts and a plurality of pilot lamp one-to-one setting, stack shell 1 is different with the used material of leaded light post, adopt integrative mode of moulding plastics with leaded light post embedding stack shell 1, the one end of leaded light post is inlayed in stack shell 1, the other end is unsettled inside flashlight stack shell 1. Set up the boss on the leaded light post and make the leaded light post that obtains of moulding plastics and barrel body 1 between the combination closely be difficult for droing more, the assembly of being convenient for reduces the assembly process, reduces the cost of labor, prevents that the problem that the assembly is improper or produce the displacement because of the collision from appearing in the leaded light post.

Specifically, in the present embodiment, 4 indicator lights are provided, and the indicator lights are arranged on the circuit board at equal intervals in a linear manner. Correspondingly, the number of the light guide columns is 4, and the light guide columns are arranged on the barrel body 1 in a linear mode at equal intervals.

Further, the indicator lights may be provided in the same color or in different colors.

Furthermore, the circuit board controls the display condition of the indicator light, and the indicator light in the embodiment can feed back the charge and discharge state of the flashlight and the electric quantity information of the flashlight. When the flashlight switch 11 is pressed to start lighting, the designated number of indicator lamps can be lighted; illustratively, when the remaining capacity of the flashlight is more than 75%, the four indicator lights simultaneously turn on green light; when the residual electric quantity of the flashlight is more than 50% and less than 75%, the three indicator lights are simultaneously turned on to emit green light; when the residual electric quantity of the flashlight is more than 25% and less than 50%, the two indicating lamps simultaneously light green light; when the electric quantity of the flashlight is less than 25%, only one indicator lamp flickers red light while the illumination work is started; reminding the user of the residual electric quantity of the flashlight and avoiding the occurrence of the condition that the electric quantity is insufficient and the illumination is stopped in the using process. In addition, when the flashlight enters the charging state, the indicating lamps with different numbers and colors are continuously flickered according to the flashlight electric quantity information, and a user can judge whether the flashlight is charged or not according to the indicating lamp display condition.

Preferably, the cylinder 1 in this embodiment is made of PC material, and the light guide pillar is made of LSR (liquid silicone rubber) material.

Furthermore, the height of one end of the light guide column embedded into the flashlight body 1 is consistent with that of the outer surface of the flashlight body 1, so that the overall smoothness of the flashlight body 1 is improved, and the grabbing operation is not affected.

Specifically, the lock ring is circular structure, and the side is equipped with the screw thread, and upper surface edge is equipped with the bulge loop, is equipped with a plurality of catching grooves on the bulge loop, and is preferred, and catching groove quantity is 4 in this embodiment, and the catching groove evenly sets up on the bulge loop about lock ring center pin symmetry, and the assembly of being convenient for or dismantlement change. Preferably, the light-transmitting sheet is made of PC material in this embodiment, and may be made of light-transmitting material such as ABS and glass in other embodiments.

The upper part of the lamp housing 21 is provided with a sealing groove for preventing the third sealing ring 214, and after the locking ring is in threaded connection with the lamp housing 21, the locking ring extrudes the third sealing ring 214 to fill the sealing groove to achieve the sealing effect. After the locking ring and the lamp shell 21 are assembled, the lower surface of the locking ring is abutted to the reflecting cover 5, the side surface of the convex ring at the edge of the upper surface is abutted to the side wall of the lamp shell 21, and the locking ring is wrapped by the lamp shell 21 and is not easy to collide with. First circuit board 32, reflector 5, locking ring, lamp body 21 butt each other in proper order, and the structure is inseparable, reduces the damage that the lamp body 21 internals produced because of rocking. Preferably, the third sealing ring 214 is liquid silicone, and the third sealing ring 214 is formed by injection molding with the lamp housing 21.

In conclusion, the first sealing ring 211 and the second sealing ring 61 are arranged at the joint of the lamp holder 2 and the tail cover 6 respectively, the third sealing ring 214 is arranged at the joint of the locking ring of the flashlight and the lamp shell 21, the sealing ring and one of the parts are integrally molded, and then the sealing ring and the one part are detachably locked through locking bolt connection and the like to establish tight connection, so that the sealing performance of the flashlight product is improved through a double-sealing structure of rubber coating sealing and threaded connection. Make the flashlight possess good waterproof sealing performance, can satisfy the waterproof sealing requirement under the higher complex environment of waterproof sealing performance, in particular, because switch 11 button 1321 and flashlight stack 1 are through integrative injection moulding's mode, the leaded light post is also through the mode with 1 integrative injection moulding of stack, this makes the inside and external connection department of flashlight be similar to a whole, its sealing performance has obtained bigger promotion, make the flashlight product in overcast and rainy day, aquatic, or when using at ordinary times the liquid of sweat surrounds down, also possess good waterproof sealing performance, the life of product has been promoted.

Known from the above embodiments, this design technical scheme passes through the long bolt with heat dissipation piece 41, first circuit board 32 and soaking 42 closely fixed for heat radiation component 4 can be inseparable conduct the heat that produces LED light source work on first circuit board 32 from two upper and lower directions fast, then conduct and dispel the heat on lamp holder 2, preferably, lamp holder 2 is metal material, can design for aluminum alloy etc. promptly, high temperature resistant, corrosion-resistant, also have prevent falling, performance characteristics such as intensity is big, can guarantee high-power flashlight, the high-efficient good heat dissipation when the intense illumination, also can be used to military police tactics interior scene and use, guarantee the structural strength and the quality of product, when necessary, also can prevent oneself the use as the weapon.

Example two:

as shown in fig. 10-12, the present embodiment provides a flashlight, which is different from the flashlight of the first embodiment in that the heat dissipation assembly 4 in the flashlight of the present embodiment does not include the heat dissipation member 41, the first circuit board 32 abuts against the soaking member 42, the periphery of the reflector 5 directly abuts against the cavity wall of the accommodating cavity 200, the lamp cap 2 assembly does not adopt the heat dissipation member 41 for conducting heat dissipation, the shape of the cavity wall of the accommodating cavity 200 is the same as the shape of the reflector 5, so that the reflector 5 directly contacts with the cavity wall of the accommodating cavity 200 for conducting heat, when the reflector 5 is made of a metal material, the reflector 5 directly contacts with the cavity wall of the accommodating cavity 200 for conducting heat, the heat dissipation effect is better, and the heat can be rapidly conducted to the lamp cap 2 in a large area and dissipated by the heat dissipation fins 212 for heat dissipation.

Particularly, when the flashlight works, heat generated in the flashlight body 1 can be quickly conducted to the lamp holder 2 to dissipate heat, and can also be conducted to the flashlight body 1 of the flashlight to dissipate heat, so that when the flashlight body 1 generates larger heat to scald the skin of a user, the flashlight is also provided with a protective sleeve and a sweat guide groove (not shown in the attached drawing), the protective sleeve can be designed into a silica gel protective sleeve, on one hand, the user is prevented from directly contacting the flashlight which works for a long time to scald the skin, and on the other hand, the flashlight can be prevented from being damaged when falling; the protective sleeve can be arranged on the cylinder body 1 and can also extend to the lamp holder 2; in addition, for antiskid, be provided with on flashlight barrel 1 can be antiskid and lead sweat groove of sweat, lead sweat groove and set up to the annular knurl shape usually, more among the prior art, do not do the repeated description. Through the arrangement, the use experience of a user of the flashlight is improved.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. A flashlight, comprising:

the light guide type solar water heater comprises a barrel body (1), wherein a switch (11) and a light guide piece (12) are integrally arranged on the barrel body (1), the barrel body (1) is provided with a containing hole (100), and a power supply (13) is arranged in the containing hole (100);

the lamp holder (2) is connected to one end of the cylinder body (1), a first sealing ring (211) is arranged between the lamp holder (2) and the cylinder body (1), and the lamp holder (2) is provided with an accommodating cavity (200);

a light emitting assembly (3) disposed in the receiving cavity (200) and electrically connected with the power supply (13);

the heat dissipation component (4) is arranged in the accommodating cavity (200) and is abutted to the light emitting component (3);

the reflecting cover (5) is arranged in the accommodating cavity (200), abuts against the light-emitting component (3) and can reflect light emitted by the light-emitting component (3);

tail-hood (6), tail-hood (6) are connected barrel (1) the other end, tail-hood (6) with be provided with second sealing washer (61) between barrel (1).

2. The torch according to claim 1, wherein said heat dissipating assembly (4) comprises a heat dissipating member (41) and a heat spreader (42), said light emitting assembly (3) being arranged between said heat dissipating member (41) and said heat spreader (42).

3. The torch according to claim 2, characterized in that said light emitting assembly (3) comprises a first light emitting element (31) and a first circuit board (32), said first circuit board (32) being arranged between said heat dissipating element (41) and said heat soaking element (42) and being electrically connected to said power supply (13), said first light emitting element (31) being arranged on said first circuit board (32).

4. The flashlight of claim 2, wherein the heat dissipation member (41) is annular and has a hollow structure, and the reflector (5) abuts against the inner wall of the heat dissipation member (41).

5. The flashlight of claim 4, wherein a positioning protrusion (221) is convexly arranged on the wall of the accommodating cavity (200), a positioning groove is arranged on the heat dissipation member (41), and the positioning groove is clamped on the positioning protrusion (221).

6. The torch according to claim 1, wherein said lamp base (2) comprises a lamp envelope (21) and a lamp cover (22), said lamp cover (22) being connected to said lamp envelope (21) so as to enclose said containing cavity (200).

7. The flashlight of claim 6, wherein the outer peripheral surface of the lamp housing (21) is provided with a plurality of heat dissipating fins (212).

8. The flashlight of claim 6, wherein an adapter (213) is disposed at an end of the lamp housing (21) facing away from the lamp cover (22), and the adapter (213) is sleeved on the barrel (1).

9. The flashlight of claim 6, further comprising a first fixing member (7), wherein the first fixing member (7) penetrates through the heat dissipation assembly (4), the light emitting assembly (3) and the lamp housing (21) in sequence and is connected to the barrel (1) to connect the lamp head (2) to the barrel (1).

10. The flashlight of claim 1, wherein the power source (13) comprises a battery pack (131) and a second circuit board (132), the second circuit board (132) is located in the accommodating hole (100) and has one end connected to the tail cover (6), the battery pack (131) is disposed on the second circuit board (132), the second circuit board (132) is further provided with a key (1321) and a second light emitting member (1322), the key (1321) is located below the switch (11), the second light emitting member (1322) is located below the light guide member (12), and the light emitting assembly (3) is electrically connected to the second circuit board (132).

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