CN210687835U

CN210687835U - Conductive connection structure of flashlight

Info

Publication number: CN210687835U
Application number: CN201921890081.1U
Authority: CN
Inventors: 岑亮; 莫志松
Original assignee: Shenzhen Langheng Electronic Co Ltd
Current assignee: Shenzhen langheng Lighting Technology Co.,Ltd.
Priority date: 2019-11-04
Filing date: 2019-11-04
Publication date: 2020-06-05
Anticipated expiration: 2029-11-04

Abstract

The utility model relates to a conductive communication structure of a flashlight, which comprises a barrel body, wherein the front end of the barrel body is provided with a lamp holder, a control circuit board is arranged in the barrel body, the tail end of the barrel body is hinged with a tail cover matched with a cover and fixed at the tail end of the barrel body, the inner wall of the barrel body is provided with at least one strip-shaped chute, and an electrode connecting sheet is arranged in the chute in a sliding way; the front end of the electrode connecting sheet is fixedly connected to the control circuit board, the tail end of the electrode connecting sheet is provided with an embedded part embedded on the side wall of the sliding chute, the tail end of the embedded part extends outwards to form a bent part capable of being hung at the tail end of the sliding chute, and the middle part of the electrode connecting sheet is bent to form an elastic part which penetrates out of the sliding chute and can be pressed on a battery in the barrel body; the inner surface of the tail cover is provided with an elastic and telescopic conductive part, and the conductive part can be simultaneously contacted with the bending part and the battery and electrically conducted after the tail cover is covered on the barrel body. The utility model discloses a simple structure has ensured electric connection's effective connection through the elasticity change of electrode connection piece and conductive part and has switched on, and the upset of tail-hood is convenient to the change of battery.

Description

Conductive connection structure of flashlight

Technical Field

The utility model relates to a flashlight, especially a simple structure, electrically conductive conductivity is strong, the convenient electrically conductive intercommunication structure of flashlight of changing the battery.

Background

The flashlight as an auxiliary lighting device is generally applied to daily life of people, but the existing flashlight with replaceable batteries adopts the metal barrel body to realize the conduction of the electric conduction, the corresponding conductive communication structure cannot be applied to the flashlight with the barrel body made of non-metal materials, and the problem that the electric connection is poor due to the insecure installation of the batteries of the flashlight with the replaceable batteries is solved, so that the use of the flashlight is influenced. The flashlight with the replaceable battery and made of other materials has the problems of not only how to realize effective communication and conduction, but also how to conveniently replace the battery and avoid poor conductive contact.

SUMMERY OF THE UTILITY MODEL

To the current not enough, the utility model provides a simple structure, electrically conductive conductivity is strong, the convenient electrically conductive intercommunication structure of flashlight of changing the battery.

The utility model provides a technical scheme that its technical problem adopted is:

a conductive communication structure of a flashlight comprises a hollow barrel body, wherein a battery can be installed in the barrel body, a lamp holder is installed at the front end of the barrel body, a control circuit board electrically connected with the lamp holder is arranged at the position, adjacent to the lamp holder, in the barrel body, the tail end of the barrel body is hinged with a tail cover which is matched, covered and fixed at the tail end of the barrel body, at least one strip-shaped sliding groove which is in the same direction as the axial direction of the barrel body is formed in the inner wall of the barrel body, and an electrode connecting sheet is arranged in the sliding groove in a sliding; the front end of the electrode connecting sheet is fixedly connected to the control circuit board and can be electrically conducted, the tail end of the electrode connecting sheet is provided with an embedded part embedded on the side wall of the sliding groove, the tail end of the embedded part extends outwards to form a bent part capable of being hung at the tail end of the sliding groove, and the middle part of the electrode connecting sheet is bent to form an elastic part which penetrates out of the sliding groove and can be abutted against the battery shell in the cylinder body; the inner surface of the tail cover is provided with an elastic and telescopic conductive part, and the conductive part can be simultaneously contacted with the bent part and a battery electrode arranged in the cylinder body and electrically conducted after the tail cover is covered on the cylinder body.

Preferably, the sliding groove is a groove with an opening caliber which protrudes out of the inner wall surface of the barrel body and is smaller than the inner caliber, the embedding part comprises an external embedding part which is abutted against the outside of the sliding groove and a first internal embedding part which is positioned inside the sliding groove, the external embedding part is an extension arm which extends from the side edge of the electrode connecting sheet and forms an I-shaped structure with the electrode connecting sheet, the first internal embedding part is an extension arm which extends from the side edge of the electrode connecting sheet and is positioned in the middle of the I-shaped structure, an included angle is formed between the first internal embedding part and the external embedding part and is clamped on the side wall of the sliding groove, and the bending part is formed by extending and bending the extension arm which is positioned at.

Preferably, the electrode connecting sheet is further provided with a second internal embedding part at a position between the elastic part and the control circuit board, and the second internal embedding part is also an extension arm extending from the side edge of the electrode connecting sheet.

Preferably, the number of the sliding grooves is four, the four sliding grooves are symmetrically arranged along the circumferential direction of the cylinder body at intervals, and each sliding groove is internally provided with one electrode connecting sheet in a sliding manner.

Preferably, the bending part includes a lateral bending part located at the left and right sides and a middle bending part located in the middle, and the length of the middle bending part in the axial direction of the barrel body is greater than the length of the lateral bending part in the axial direction of the barrel body.

Preferably, the conductive part comprises a first metal sheet, a spring, a second metal sheet and a metal cap which are arranged on the inner surface of the tail cover in sequence, the metal cap and the second metal sheet are both metal pieces with cap-shaped structures, the second metal sheet is provided with a through hole which is matched with the metal cap to pass through in the middle of the cap top, the metal cap penetrates out of the through hole, the edge of the metal cap is buckled with the edge of the through hole, one end of the spring is fixed on the first metal sheet, the other end of the spring is abutted against the bottom surface of the top of the metal cap, the edge of the second metal sheet is pressed against the first metal sheet and is fixedly connected to the tail cover through conductive screws which sequentially penetrate through the edge of the second metal sheet and the first metal sheet, the screw is covered on the barrel body at the tail cover and then is contacted with the bending part and is electrically conducted, and the metal cap is covered on the barrel body at the tail cover and then is contacted with a battery arranged in the barrel body and is electrically conducted.

As preferred, it has the hasp on perpendicular tail-hood surface to extend on one side relative with articulated department on the tail-hood, be equipped with first recess on the internal surface of hasp, the tail end of hasp surface backward extend have with the tail-hood afterbody form the arch of draw-in groove, be equipped with the first boss of tail-hood lid back and first recess phase-match lock on the stack shell, the both sides of first boss all are equipped with the second boss and are equipped with the second recess, two at the front end of first boss the second boss corresponds articulatedly with the both ends of a U type locking lever, U type locking lever block is in the draw-in groove after the tail-hood lid closes on the stack shell.

Preferably, the outer wall of the cylinder body is provided with an elastic back clip, one end of the back clip is fixedly connected to the cylinder body, and the other end of the back clip is provided with a V-shaped sunken part sunken towards the direction of the cylinder body.

Preferably, a waterproof ring is arranged on the inner surface of the tail cover and surrounds the conductive part.

Preferably, a third groove is formed in the inner surface of the tail cover, a magnet is mounted in the third groove, and the conductive portion is mounted at the opening end of the third groove.

The beneficial effects of the utility model reside in that: the utility model has the advantages that the structure is simple, the tail cover is hinged with the barrel body, the barrel body is opened or closed through the turnover of the tail cover, the conductive part is disconnected with the electrode connecting sheet and the battery when the tail cover is opened, the circuit of the flashlight is in a disconnection and power-off state, the tail cover is opened to conveniently take out and replace the battery, and meanwhile, the tail cover is not separated from the barrel body, and the loss of the tail cover cannot be caused; when the tail cover is turned over relative to the cylinder body and is covered and fixed on the cylinder body, the conductive part is simultaneously connected with the electrode connecting sheet and the battery electrode to form an electrically conductive passage, the conductive part is connected with the battery in a compressed state under the pressure action of the battery, when the connection between the conductive part and the battery is loosened, the conductive part can stretch and always keep good contact with the battery under the action of elastic force, meanwhile, the bent part of the electrode connecting sheet can also be pressed by the conductive part, under the pressure action of the conductive part, the elastic part of the electrode connecting sheet protrudes outwards from the chute to generate deformation to apply pressure on the battery, and the elastic part of the electrode connecting sheet is pressed by the battery in the reverse direction, so that the electrode connecting sheet and the conductive part always keep stable and good contact, and the effective connection and conduction of the electrical connection can be ensured through the elastic change of the, the conductive communication structure can be suitable for the flashlight with the replaceable battery and the barrel body made of any material, and has a wider application range.

Drawings

Figure 1 is a cross-sectional view of an embodiment of the invention;

FIG. 2 is a schematic view of the perspective structure of the embodiment of the present invention cut along the left and right sides of the barrel body;

FIG. 3 is a schematic structural view of an electrode connecting sheet according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a tail cover according to an embodiment of the present invention;

fig. 5 is a schematic top view of the tail cover according to the embodiment of the present invention;

FIG. 6 is a schematic structural view of the tail cover of the embodiment of the present invention when opened;

FIG. 7 is a schematic structural view of the tail cap of the embodiment of the present invention covering and fixed on the barrel body;

part names and serial numbers in the figure: 1-a barrel body 10-a first boss 11-a second boss 12-a second groove 13-a U-shaped lock lever 2-a lamp holder 3-a control circuit board 4-a tail cover 40-a conductive part 41-a lock catch 42-a third groove 400-a first metal sheet 401-a spring 402-a second metal sheet 403-a metal cap 410-a first groove 411-a protrusion 412-a clamping groove 420-a magnet 5-a sliding groove 6-an electrode connecting sheet 60-an embedding part 61-a bending part 62-an elastic part 63-a second internal embedding part 600-an external embedding part 601-a first internal embedding part 610-a side bending part 611-a middle bending part 7-a screw 8-a back clamp 80-a depressed part 9-a waterproof ring.

Detailed Description

To more clearly illustrate the objects, technical solutions and advantages of the embodiments of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and examples, which are for clear and complete description. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, belong to the scope of protection of the present invention. In addition, directional terms used in the present invention, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., refer to directions only as shown in the attached drawings, and are used for better and clearer explanation and understanding of the present invention, and do not indicate or imply orientation which the present invention must have, and thus, should not be construed as limiting the present invention.

The embodiment of the utility model is shown in figures 1 to 7, a conductive communication structure of a flashlight comprises a hollow barrel body 1 capable of installing a battery inside, the battery is taken as an external part and is installed at the hollow part in the barrel body 1 in a detachable way, the front end of the barrel body 1 is provided with a lamp holder 2, a control circuit board 3 electrically connected with the lamp holder 2 is arranged at the position of the adjacent lamp holder 2 in the barrel body, the tail end of the barrel body 1 is hinged with a tail cover 4 which is matched with the cover and is fixed at the tail end of the barrel body 1, the control circuit board 3 is used for controlling various functions of the flashlight like the circuit board of the traditional flashlight, the adjacent lamp holder 2 can avoid the influence of the battery on the circuit board when the battery is installed in the barrel body 1, the tail cover 4 is hinged with the barrel body 1 through a rotating shaft arranged at the end part of the barrel body 1, the barrel body 1 can be opened or closed through the overturn of the tail cover 4, the tail cover 4 is opened, the battery is loaded into the barrel body 1, then the tail cover 4 is covered and fixed on the barrel body 1, the circuit of the flashlight is conducted, the flashlight can work, the tail cover 4 only needs to be turned over and opened when the battery is taken out and replaced, the structure is simple, the operation is convenient and rapid, meanwhile, the tail cover 4 is not separated from the cylinder body 1, the loss of the tail cover 4 after the cylinder body 1 is opened can not be caused, the inner wall of the cylinder body 1 is provided with at least one strip-shaped sliding groove 5 which has the same direction with the axial direction of the cylinder body 1, namely the sliding groove 5 extends from the front part to the tail part of the cylinder body 1, the sliding groove 5 corresponds to the cylinder body 1 in the front and back direction, and the strip-shaped structure limits the sliding direction in the sliding groove 5 to be linear, the sliding groove 5 can be formed by sinking on the inner wall of the cylinder body 1 or formed by two side walls protruding on the surface of the inner wall of the cylinder body 1, and an electrode connecting sheet 6 is arranged in the sliding groove 5 in a sliding way; the front end of the electrode connecting sheet 6 is fixedly connected to the control circuit board 3 and can be electrically conducted, the tail end of the electrode connecting sheet 6 is provided with an embedding part 60 embedded on the side wall of the sliding groove 5, at the moment, one end of the electrode connecting sheet 6 is fixed, the other end of the electrode connecting sheet is embedded in the sliding groove 5 so that the electrode connecting sheet is limited in the sliding groove 5 and cannot fall off from the sliding groove 5, the battery can not be installed in the barrel body 1 and can only slide in the sliding groove 5, the embedding part 60 is embedded in the sliding groove 5 or outside the side wall of the sliding groove 5 or embedded in the inner part and the side wall simultaneously according to different embedding of the sliding groove 5, for the sliding groove 5 formed by embedding, the embedding part 60 is embedded in the sliding groove 5 or a sliding groove is additionally arranged at the position adjacent to the sliding groove 5 so that the embedding part 50 can be embedded in the side wall of the sliding groove 5, for the sliding groove 5 formed by protrusion, the embedding, the tail end of the embedding part 60 extends outwards to form a bending part 61 capable of being hung at the tail end of the sliding groove 5, when the embedding part 60 is positioned in the sliding groove 5, the bending part 61 is formed by bending towards the outside of the sliding groove 5, when the embedding part 60 is positioned outside the side wall of the sliding groove 5, the bending part 61 is formed by bending towards the inside of the sliding groove 5, when the embedding part 60 is embedded in the sliding groove 5 and outside the side wall of the sliding groove 5, the bending part 61 is arranged according to different conditions, after the electrode connecting sheet 6 slides downwards, the bending part 61 is hung at the tail end of the sliding groove 5 to prevent the electrode connecting sheet 6 from further sliding downwards, the sliding of the electrode connecting sheet 6 is limited, the middle part of the electrode connecting sheet 6 is bent to form an elastic part 62 which penetrates through the sliding groove 5 and can be pressed on the battery shell in the barrel body 1, so that the electrode connecting sheet 6 has the capability of elastic deformation, and the electrode connecting sheet 6 can bear the pressure, the shape and structure of the electrode connecting sheet 6 are kept from being changed too much, the stability of electrical connection is maintained, and the problem of poor contact is avoided, and at the moment, the bending of the elastic part 62 can be formed by bending once or folding for many times; the inner surface of the tail cover 4 is provided with an elastically telescopic conductive part 40, when the tail cover 4 is opened, the conductive part 40 is in a normal state, the conductive part 40 can be simultaneously contacted and electrically conducted with the bending part 61 and a battery electrode arranged in the cylinder body 1 after the tail cover 4 is covered on the cylinder body 1, at the moment, an electrically conducting path is formed during the working of the flashlight, when the tail cover 4 is covered and fixed on the cylinder body 1, the conductive part 40 is contacted and electrically conducted with a battery arranged in the cylinder body 1, namely, after the battery is arranged in the cylinder body 1, the distance from the tail end of the battery to the tail end of the cylinder body 1 is smaller than the height of the conductive part 40 protruding on the surface of the tail cover 4 when the conductive part 40 is in a normal state, at the moment, the battery can apply pressure to the conductive part 40 after being covered, the conductive part 40 is in a compressed state under the pressure of the battery and is connected with the battery, the conductive portion 40 is stretched by the elastic force to always maintain good contact with the battery, and the bent portion 61 of the electrode connecting tab 6 is also pressed by the conductive portion 40, under the pressure of the conductive portion 40, the elastic portion 62 of the electrode connecting piece 6 deforms outwardly of the slide groove 5 to apply pressure to the battery case, at this time, the elastic part 62 of the electrode connecting sheet 6 is pressed by the battery case in the opposite direction, so that the electrode connecting sheet 6 and the conductive part 40 are always kept in stable and good contact, effective connection conduction of the electrical connection is ensured by the elastic change of the electrode connecting pad 6 and the conductive portion 40, the conductive communication structure conducts electricity through the electrode connecting sheet 6, is not limited by the material of the barrel body, can be suitable for the flashlight with the replaceable battery and made of any material of the barrel body, and has a wider application range.

A further improvement, as shown in fig. 1 to 3 and 5, the sliding groove 5 is a groove with an opening caliber protruding from the inner wall surface of the barrel body 1 smaller than the inner caliber, the sliding groove 5 protrudes from the inner wall surface of the barrel body 1 without damaging the structural strength of the barrel body 1, and the side wall of the sliding groove 5 can also serve as a reinforcing rib of the barrel wall of the barrel body 1 to enhance the structural strength of the barrel body, and the caliber of the opening of the sliding groove 5 is smaller than the inner caliber of the sliding groove 5, so that the cross section of the sliding groove 5 forms a trapezoid-like structure, a part sliding in the sliding groove 5 cannot fall off from the sliding groove 5, the embedded part 60 comprises an external embedded part 600 abutting against the outside of the sliding groove 5 and a first internal embedded part 601 positioned in the sliding groove 5, the external embedded part 600 abuts against the outer surface of the side wall of the sliding groove 5, the first internal embedded part 601 abuts against the inner surface of the side wall of the sliding groove 5, and the two embedded parts form The external embedding part 600 is an extension arm extending from the side edge of the electrode connecting sheet 6 and forming an I-shaped structure with the electrode connecting sheet 6, the first internal embedding part 601 is an extension arm extending from the side edge of the electrode connecting sheet 6 and positioned in the middle of the I-shaped structure, that is, the first internal embedding part 601 is positioned between the head and tail extension arms of the external embedding part 600, the first internal embedding part 601 and the external embedding part 600 form an included angle clamped on the side wall of the sliding chute 5, at this time, when the tail part of the electrode connecting sheet 6 is seen forwards, the external embedding part 600 and the first internal embedding part 601 form a cross-shaped state, the bending part 61 is formed by extending and bending the extension arm at the tail end of the external embedding part 600 towards the inside of the sliding chute 5, so that the embedding part 60 is embedded on the sliding chute 5 before or after sliding, and the extended bending part 61 enables the conductive part 40 to be pressed against the bending part 61 to generate a certain amount of force between the bending part 61 Pressure, ensuring good conductive contact. In order to prevent the front end of the electrode connecting sheet 6 from penetrating out of the chute 5 after the electrode connecting sheet 6 is pressed, a second inner embedded part 63 is further arranged on the electrode connecting sheet 6 at a position between the elastic part 62 and the control circuit board 3, and the second inner embedded part 63 is also an extension arm extending from the side edge of the electrode connecting sheet 6.

In order to ensure good conductive communication, as shown in fig. 5, the number of the sliding grooves 5 is four, the four sliding grooves 5 are symmetrically arranged along the circumferential direction of the cylinder body 1 at intervals, and each sliding groove 5 is internally provided with one electrode connecting sheet 6 in a sliding manner, so that after the tail cover 4 is covered on the cylinder body 1, the electrode connecting sheets 6 are in contact with the conductive part 40 around one circle, a good conductive communication state can be always achieved, and the problem of poor contact is avoided. The setting of four spout 5 this moment, when well kenozooecium position cross-section in stack shell 1 is circular, can set up it in arbitrary symmetrical position, and when well kenozooecium position cross-section in stack shell 1 is square, then preferentially set up four spout 5 in four bights and make four bights be the fillet form, just so made things convenient for the installation that the slip of electrode connection piece 6 also can not influence the battery, also made the battery can not rock in more firm the using of stack shell.

In a further improvement, as shown in fig. 2, the bending part 61 includes a lateral bending part 610 located at the left and right sides and an intermediate bending part 611 located at the middle, and the length of the intermediate bending part 611 in the axial direction of the barrel 1 is greater than that of the lateral bending part 610 in the axial direction of the barrel 1, so that the bending of the bending part 60 is facilitated and smooth sliding of the electrode connecting tab 6 is ensured. As shown in fig. 4, the conductive portion 40 includes a first metal sheet 400, a spring 401, a second metal sheet 402, and a metal cap 403, which are sequentially disposed on the inner surface of the tail cover 4, where the metal cap 403 and the second metal sheet 402 are both metal pieces with cap-shaped structures, that is, structures with upward bulges in the middle to form a groove with downward opening and with horizontal peripheries, the second metal sheet 402 is provided with a through hole in the middle of the cap top for the metal cap 403 to pass through, the metal cap 403 passes through the through hole and makes the edge of the metal cap 403 buckle with the edge of the through hole, that is, the through hole is located at the bottom of the groove on the second metal sheet 402, the metal cap passes through the through hole at the bottom of the groove on the second metal sheet 402, the upper surface of the edge of the metal cap 403 abuts against the bottom of the groove on the second metal sheet 402, the metal cap 403 is limited so that the metal cap 403 does not fall off from the through hole, one end of the spring 401 is fixed on the first metal sheet 400 and the other end abuts against the, the edge of the second metal sheet 402 is pressed against the first metal sheet 400 and is fixedly connected to the tail cover 4 through the conductive screw 7 which sequentially passes through the edge of the second metal sheet 402 and the first metal sheet 400, so that the second metal sheet 402 and the first metal sheet 400 are fixedly connected with the tail cover 4, the metal cap 403 is stretched in the through hole of the first metal sheet 400 under the action of the compression or stretching elastic force of the spring 401, the screw 7 is contacted with the bending part 61 and electrically conducted after the tail cover 4 is covered on the cylinder body 1, the metal cap 403 is contacted with the battery arranged in the cylinder body 1 and electrically conducted after the tail cover 4 is covered on the cylinder body 1, that is, the position of the screw 7 is corresponding to the position of the electrode connecting sheet 6, the electrode connecting sheet 6 is arranged at a certain position of the inner wall of the cylinder body, and after the tail cover 4 is covered on the cylinder body 1, the position of the tail cover 4 corresponding to the position is the position where the screw 7 is arranged, the conductive connection is formed by the contact conduction of the screw 7 and the electrode connecting piece 6 and the contact conduction of the metal cap 403 and the battery.

In a further improvement, as shown in fig. 1 and 2, and fig. 4 to 7, a lock 41 perpendicular to the surface of the tail cover 4 extends from the side of the tail cover 4 opposite to the hinge, the lock 41 and the hinge are located at two opposite sides of the tail cover 4, after the tail cover 4 is covered, the tail cover 4 can be fixed on the barrel body 1 through the lock 41, at this time, a first groove 410 is provided on the inner surface of the lock 41, a protrusion 411 forming a slot 412 with the tail of the tail cover 4 extends backwards from the tail end of the outer surface of the lock 41, for ensuring the stability of the flashlight upside down on the desk, it is preferable that the lock 41 extends from the lower part of the side opposite to the hinge, so that the tail end of the lock 41 is at a distance from the tail end of the tail cover 4, the distance is equal to the thickness of the tail cover 4, the slot 412 is formed between the protrusion 411 and the side, and the protrusion 411 does not protrude from the surface of the tail end of the tail cover 4, be equipped with the first boss 10 of tail-hood 4 lid closure back and first recess 410 phase-match lock on stack shell 1, like this tail-hood 4 lid closes the back, fixes tail-hood 4 and has addd the feeling of locking tail-hood 4 and stack shell 1 in the first recess 410 on the hasp 41 is gone into to first boss 10 card on stack shell 1, the both sides of first boss 10 all are equipped with second boss 11 and are equipped with second recess 12 at the front end of first boss 10, and second recess 12 then conveniently when opening tail-hood 4, the finger gets into in order to scratch the hasp, two second boss 11 corresponds articulatedly with the both ends of a U type locking lever 13, U type locking lever 13 closes the back block on stack shell 1 at tail-hood 4 lid in draw-in groove 412, and after tail-hood 4 lid closes, U type locking lever 13 upset block upwards in draw-in groove 412, has further stabilized the connection of tail-hood 4 and stack shell 1.

In a further improvement, as shown in fig. 1, an elastic back clip 8 is arranged on the outer wall of the barrel body 1, one end of the back clip 8 is fixedly connected to the barrel body 1, and the other end of the back clip is provided with a V-shaped concave part 80 which is concave towards the barrel body 1, so that the flashlight can be used in a clamping manner through the back clip 8, and meanwhile, the V-shaped concave part 80 is arranged on the back clip 8, so that the back clip 8 is clamped more firmly. In order to prevent rainwater from entering the barrel body 1 to damage the control circuit board 3 and various components in the barrel body 1 in use, as shown in fig. 2, 4 to 6, a circle of waterproof ring 9 is arranged on the inner surface of the tail cover 4 around the conductive part 40, and after the tail cover 4 is covered, the waterproof ring 9 is tightly attached to the tail end of the barrel body 1 to prevent water from entering. Meanwhile, in order to stably place the flashlight on the table top when the flashlight is inverted, as shown in fig. 4, a third groove 42 is formed in the inner surface of the tail cover 4, a magnet 420 is installed in the third groove 42, and the conductive portion 40 is installed at the opening end of the third groove 42, so that when the table top is a ferromagnetic table top, the table top and the magnet attract each other to increase the stability of the table top, and when the table top is a non-ferromagnetic table top, the magnet plays a role in balancing weight and can also increase the placing stability of the flashlight, and the flashlight is prevented from toppling over.

It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are considered to be within the scope of the invention as defined by the following claims.

Claims

1. An electrically conductive connection structure of a flashlight, comprising: the battery-free lamp barrel comprises a hollow barrel body, a lamp holder is mounted at the front end of the barrel body, a control circuit board electrically connected with the lamp holder is arranged at the position, adjacent to the lamp holder, in the barrel body, a tail cover which is matched with and covers the tail end of the barrel body is hinged to the tail end of the barrel body, at least one strip-shaped sliding groove which is in the same direction as the axial direction of the barrel body is formed in the inner wall of the barrel body, and an electrode connecting sheet is arranged in the sliding groove in a sliding manner; the front end of the electrode connecting sheet is fixedly connected to the control circuit board and can be electrically conducted, the tail end of the electrode connecting sheet is provided with an embedded part embedded on the side wall of the sliding groove, the tail end of the embedded part extends outwards to form a bent part capable of being hung at the tail end of the sliding groove, and the middle part of the electrode connecting sheet is bent to form an elastic part which penetrates out of the sliding groove and can be abutted against the battery shell in the cylinder body; the inner surface of the tail cover is provided with an elastic and telescopic conductive part, and the conductive part can be simultaneously contacted with the bent part and a battery electrode arranged in the cylinder body and electrically conducted after the tail cover is covered on the cylinder body.

2. The conductive communication structure of a flashlight of claim 1, wherein: the spout is the groove that the opening bore of outstanding stack shell inner wall surface is less than inside bore, gomphosis portion is including leaning on outside gomphosis portion, the first inside gomphosis portion that is located the spout inside that leans on outside spout, outside gomphosis portion is the extension arm that forms the I shape structure with the electrode connection piece that extends from the side of electrode connection piece, first inside gomphosis portion is the extension arm that is located the middle of the I shape structure that extends from the side of electrode connection piece, first inside gomphosis portion forms the contained angle card with outside gomphosis portion on the spout lateral wall, the kink is that the extension arm that is in the tail end by outside gomphosis portion extends to spout inside and buckles and forms.

3. The conductive communication structure of a flashlight of claim 2, wherein: and a second internal embedded part is also arranged on the electrode connecting sheet at the position between the elastic part and the control circuit board, and the second internal embedded part is also an extension arm extending from the side edge of the electrode connecting sheet.

4. The conductive communication structure of a flashlight of claim 1, wherein: the spout is equipped with four, four the spout sets up along barrel circumference interval symmetry, every all the cunning is equipped with an electrode connection piece in the spout.

5. The conductive communication structure of a flashlight of claim 1, wherein: the bending part comprises lateral bending parts positioned at the left side and the right side and a middle bending part positioned in the middle, and the length of the middle bending part in the axial direction of the cylinder body is greater than that of the lateral bending part in the axial direction of the cylinder body.

6. The conductive communication structure of a flashlight of claim 1, wherein: the conductive part comprises a first metal sheet, a spring, a second metal sheet and a metal cap which are arranged on the inner surface of the tail cover in sequence, the metal cap and the second metal sheet are both metal pieces with cap-shaped structures, the second metal sheet is provided with a through hole which is matched with the metal cap to pass through in the middle of the cap top, the metal cap penetrates out of the through hole, the edge of the metal cap is buckled with the edge of the through hole, one end of the spring is fixed on the first metal sheet, the other end of the spring is abutted against the bottom surface of the top of the metal cap, the edge of the second metal sheet is pressed against the first metal sheet and is fixedly connected to the tail cover through conductive screws which sequentially penetrate through the edge of the second metal sheet and the first metal sheet, the screw is covered on the barrel body at the tail cover and then is contacted with the bending part and is electrically conducted, and the metal cap is covered on the barrel body at the tail cover and then is contacted with a battery arranged in the barrel body and is electrically conducted.

7. The conductive communication structure of a flashlight of claim 1, wherein: the tail is covered and is extended on one side relative with articulated department has the hasp on perpendicular tail-hood surface, be equipped with first recess on the internal surface of hasp, the tail end of hasp surface backward extend have with the tail-hood afterbody form the arch of draw-in groove, be equipped with the tail-hood lid on the stack shell and close the first boss of back and first recess phase-match lock on the stack shell, the both sides of first boss all are equipped with the second boss and are equipped with the second recess, two at the front end of first boss the second boss corresponds articulatedly with the both ends of a U type locking lever, the U type locking lever closes the back block in the draw-in groove on the stack shell at the tail-hood lid.

8. The conductive communication structure of a flashlight of claim 1, wherein: the outer wall of the cylinder body is provided with an elastic back clip, one end of the back clip is fixedly connected to the cylinder body, and the other end of the back clip is provided with a V-shaped sunken part sunken towards the direction of the cylinder body.

9. The conductive communication structure of a flashlight of claim 1, wherein: and a circle of waterproof ring is arranged on the inner surface of the tail cover around the conductive part.

10. The conductive communication structure of a flashlight of claim 1, wherein: the inner surface of the tail cover is provided with a third groove, a magnet is arranged in the third groove, and the conductive part is arranged at the opening end of the third groove.