Spring conductive structure and flashlight

Abstract

The utility model discloses a spring conductive structure and a flashlight, the spring conductive structure comprises a U-shaped metal frame used for being connected with a battery in a conductive manner, a first conductive connection part arranged at the upper end of one side of the metal frame, and a second conductive connection part arranged at the upper end of the other side of the metal frame, at least one of the first guide connection part and the second guide connection part and the metal frame are of a split type structure, the first guide connection part and / or the second guide connection part are / is installed on the metal frame through a first spring in a floatable mode and used for being connected with a circuit board in a guide mode, the guide connection stability is excellent, and the metal frame is provided with a containing groove for containing a battery. The spring conductive structure is adopted to enable the battery and the circuit board to form electrical conduction, through direct contact conduction, wire welding is not needed between the battery and the circuit board, assembly is extremely easy, the problem that detinning is prone to occurring due to the fact that wires are linked with the battery and the circuit board in the disassembly and assembly process of the flashlight is solved, and the flashlight is easy to disassemble and assemble and convenient to maintain.

Description

Technical field:

[0001] The utility model relates to the technical field of flashlight products, in particular to a spring conductive structure and a flashlight. Background technology:

[0002] Flashlight: (English: Flashlight or Torch), also known as flashlight, is a handheld electronic lighting tool.

[0003] The Chinese utility model with patent application number 202320571652.5 discloses a flashlight structure that realizes conductivity of the barrel head and the barrel tail, relating to the technical field of flashlights; it comprises a barrel head module, a barrel body module and a barrel tail module connected in sequence; the barrel body module comprises a barrel body, a barrel body bracket, a wire and a battery, the battery is installed in the barrel body, and the barrel body bracket is arranged between the inner wall of the barrel body and the battery along the axial direction of the barrel body, the barrel body bracket is sheet-shaped and adapted to the curvature of the inner wall of the barrel body; a wire groove is provided on one side of the barrel body bracket close to the inner wall of the barrel body, the wire is installed in the wire groove, one end of the wire is electrically connected to the first circuit board of the barrel head module, and the other end is electrically connected to the second circuit board of the barrel tail module, and the second circuit board is electrically connected to the battery.

[0004] The above-mentioned flashlight structure needs to use a wire to connect the first circuit board and the second circuit board, and the two ends of the wire are respectively welded and fixed to the first and second circuit boards to achieve conduction, and the second circuit board is electrically connected to the battery, wherein a spring or a spring is also required to be arranged between the second circuit board and an electrode of the battery to achieve electrical connection, that is, the wire is actually connected to the first circuit board and the battery, so that the battery supplies power to the first circuit board. However, the size of the flashlight is originally small, and the two ends of the wire need to be welded and fixed to the first and second circuit boards respectively, which is not convenient to operate, and a long wire is required, so that the wire will be redundant, and the barrel bracket needs to be close to the inner wall of the barrel to open a wire groove to accommodate the wire, making its structure complicated. In addition, after the wire is welded and fixed to the first and second circuit boards, the flashlight is inconvenient to disassemble and assemble, and the wire de-tinning phenomenon occurs during the disassembly and assembly process, which is not convenient for maintenance.

[0005] In view of this, the inventor proposes the following technical solution. Utility model content:

[0006] The utility model aims to overcome the deficiencies of the prior art and provide a spring conductive structure and a flashlight.

[0007] In order to solve the above technical problems, the utility model adopts the following first technical solution: the spring conductive structure includes a U-shaped metal frame used for conducting with a battery, a first conducting portion arranged at the upper end of one side of the metal frame, and a second conducting portion arranged at the upper end of the other side of the metal frame, wherein at least one of the first conducting portion and the second conducting portion is a split structure with the metal frame, and the first conducting portion and / or the second conducting portion is mounted on the metal frame in a floating manner through a first spring and is used for conducting with a circuit board, and the metal frame has a accommodating groove for accommodating the battery.

[0008] Furthermore, in the above technical solution, the metal frame includes a third conductive connection portion bent into a V shape and used to contact an electrode in the battery, and a first straight rod portion and a second straight rod portion bent upward along both sides of the third conductive connection portion, the first conductive connection portion is extended upward along the first straight rod portion, the lower end of the first spring is sleeved and fixed on the upper end of the second straight rod portion, and the lower end of the second conductive connection portion is passed through and fixed on the upper end of the first spring.

[0009] Furthermore, in the above technical solution, the upper end of the first conductive portion is bent downward by 180 degrees to form a first bent portion, and a first arc-shaped contact surface is formed at the upper end of the first conductive portion.

[0010] Furthermore, in the above technical solution, the upper end of the second conductive connection portion is bent downward by 180 degrees to form a second bent portion, and a second arc-shaped contact surface is formed on the upper end of the second conductive connection portion.

[0011] Furthermore, in the above technical solution, the inner hole of the first spring is divided into three sections, including an upper opening section, a middle hole section and a lower opening section distributed from top to bottom, wherein the diameters of the upper opening section and the lower opening section are both larger than the diameter of the middle hole section, and the lower end of the second guiding portion is passed through and fixed in the upper opening section and does not pass through the middle hole section; the upper end of the second straight rod portion is passed through and fixed in the lower opening section and does not pass through the middle hole section.

[0012] In order to solve the above technical problems, the utility model adopts the following second technical solution: a flashlight, which includes a barrel, a battery arranged in the barrel, a lamp head installed on the barrel in a detachable manner, a circuit board installed in the lamp head, a light source arranged on the circuit board and a lampshade installed on the upper end of the lamp head and covering the light source, the lower end of the circuit board is provided with a first conductive sheet and a second conductive sheet and a third conductive sheet located between the first conductive sheet and the second conductive sheet, the third conductive sheet contacts with one electrode of the battery to conduct, and is characterized in that it also includes the above-mentioned spring conductive structure arranged in the barrel, the metal frame is penetrated in the barrel, the battery is placed in the accommodating groove of the metal frame, and the other electrode of the battery contacts with the bottom of the metal frame and forms electrical conduction, the first conductive contact part and the second conductive contact part are respectively in contact with the first conductive sheet and the second conductive sheet, and form electrical conduction.

[0013] Furthermore, in the above technical solution, a second spring is also provided at the bottom of the inner cavity of the barrel, and the upper end of the second spring presses against the bottom surface of the metal frame, so that the metal frame and the other electrode of the battery are elastically abutted and connected.

[0014] Furthermore, in the above technical solution, the first conductive sheet and the second conductive sheet are both arc-shaped, and the first conductive sheet and the second conductive sheet are spaced apart from each other.

[0015] Furthermore, in the above technical solution, an L-shaped introduction groove and a locking groove connected to the introduction groove are provided on the upper end of the barrel, and both sides of the locking groove have travel limit baffle surfaces; a latching protrusion is provided inside the lamp head, and the latching protrusion is pressed along the introduction groove and enters the locking groove, and under the action of the elastic force of the second spring to lift the battery and the lamp head, the latching protrusion falls between the two travel limit baffle surfaces.

[0016] Furthermore, in the above technical solution, the upper end of the lamp head is provided with a mounting groove and a mounting hole that passes through the bottom of the mounting groove, the circuit board is embedded and fixed in the mounting hole, and the lower end of the lampshade is fixed in the mounting groove; the outside and / or the bottom of the barrel are provided with a connecting ear, and the connecting ear is provided with a connecting hole.

[0017] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art: the utility model adopts a spring conductive structure to make the battery and the circuit board form electrical conduction, the metal frame has a receiving groove for accommodating the battery, when the battery is placed in the receiving groove, the other electrode of the battery contacts the bottom of the metal frame and forms electrical conduction, it does not need welding, it can be assembled to achieve conduction, and the operation is extremely simple. At least one of the first conductive part and the second conductive part is a separate structure from the metal frame, and the first conductive part and / or the second conductive part is installed on the metal frame in a floating manner through the first spring and is used for conducting with the circuit board, so that the contact between the spring conductive structure and the circuit board is more stable, and the quality of the conduction can be better guaranteed, and there is no need for welding between them, and it is also very easy to assemble. In addition, after the spring conductive structure is installed in the flashlight, since there is no direct contact and conduction between the spring conductive structure and the battery and the circuit board in the flashlight, and there is no wire welding structure between them, during the disassembly and assembly of the flashlight, there is no need to consider the problem of wire routing, and there will be no problem of wire linking the battery and the circuit board and easily causing tin stripping. The disassembly and assembly of the flashlight is extremely simple, and it is convenient for maintenance. Description of the drawings:

[0018] Figure 1 It is a three-dimensional diagram of the spring conductive structure in the utility model;

[0019] Figure 2 It is a three-dimensional diagram of the spring conductive structure in the utility model from another perspective;

[0020] Figure 3 It is a three-dimensional exploded view of the spring conductive structure in the utility model;

[0021] Figure 4 It is an assembly diagram of the spring conductive structure, the battery and the circuit board in the utility model;

[0022] Figure 5 It is a three-dimensional diagram of the flashlight in the utility model;

[0023] Figure 6 It is a stereogram of the flashlight in the utility model from another perspective;

[0024] Figure 7 It is a three-dimensional exploded view of the flashlight in the utility model;

[0025] Figure 8 It is a three-dimensional diagram of the lamp holder of the flashlight in the utility model;

[0026] Fig. 9 It is a cross-sectional view of the flashlight in the utility model;

[0027] Fig.10 It is a three-dimensional diagram of the barrel of the flashlight in the utility model;

[0028] Fig.11 It is a three-dimensional diagram of the first spring in the utility model. Specific implementation method:

[0029] The utility model is further described below in conjunction with specific embodiments and drawings.

[0030] See Figure 1-4 As shown, a spring conductive structure is shown, the spring conductive structure 1 comprises a U-shaped metal frame 11 for conducting with a battery 3, a first conducting portion 12 disposed at the upper end of one side of the metal frame 11, and a second conducting portion 14 disposed at the upper end of the other side of the metal frame 11. The first conducting portion 12 and the second conducting portion 14 are used for conducting with a circuit board 5, thereby making the battery 3 and the circuit board 5 electrically conductive. The metal frame 11 has a receiving groove 110 for accommodating the battery 3. When the battery 3 is placed in the receiving groove 110, the other electrode of the battery 3 contacts the bottom of the metal frame 11 and forms electrical conduction.

[0031] In order to make the first conductive part 12 and / or the second conductive part 14 contact with the circuit board 5 more stably and have better conductivity, the following design is also made: at least one of the first conductive part 12 and the second conductive part 14 is a separate structure from the metal frame 11, and the first conductive part 12 and / or the second conductive part 14 is installed on the metal frame 11 in a floating manner through the first spring 13 and is used for conductive connection with the circuit board 5. In other words, the utility model adopts the spring conductive structure 1 to make the battery 3 and the circuit board 5 form electrical conduction, and the metal frame 11 has a receiving groove 110 for accommodating the battery 3. When the battery 3 is placed in the receiving groove 110, the other electrode of the battery 3 contacts the bottom of the metal frame 11 and forms electrical conduction. It does not require welding and can be assembled to achieve conduction, and the operation is extremely simple. At least one of the first conductive part 12 and the second conductive part 14 is a separate structure from the metal frame 11, and the first conductive part 12 and / or the second conductive part 14 is installed on the metal frame 11 in a floating manner through the first spring 13 and is used for conductive connection with the circuit board 5, thereby making the contact between the spring conductive structure 1 and the circuit board 5 more stable, and the quality of the conductive connection can be better guaranteed, and there is no need for welding between them, and the assembly is also very simple. In addition, after the spring conductive structure 1 is installed in the flashlight, since there is no direct contact and conduction between the spring conductive structure 1 and the battery 3 and the circuit board 5 in the flashlight, there is no wire welding structure between them, so that during the disassembly and assembly of the flashlight, there is no need to consider the problem of wire routing, and there will be no problem of wire linkage with the battery 3 and the circuit board 5, which is easy to cause tin stripping. It is extremely easy to disassemble and assemble, and is convenient for maintenance.

[0032] The structures of the spring conductive structure 1 include at least the following three types:

[0033] The first type is: the first conductive portion 12 and the metal frame 11 are of a split structure, and the first conductive portion 12 is mounted on the metal frame 11 in a floating manner through a first spring 13, and the second conductive portion 14 is integrally extended and formed on the upper end of the other side of the metal frame 11, and the second conductive portion 14 and the first conductive portion 12 are in contact with the circuit board 5 at the same time. Since the first conductive portion 12 is mounted on the metal frame 11 in a floating manner through the first spring 13, the contact between the first conductive portion 12 and the circuit board 5 is more stable, and the quality of the conductive connection can be better guaranteed. In addition, since the first conductive portion 12 is mounted on the metal frame 11 in a floating manner through the first spring 13, the upper end of the first conductive portion 12 can be set higher so that the upper end surface of the first conductive portion 12 is higher than the upper end surface of the second conductive portion 14, so that when the first conductive portion 12 contacts the circuit board 5, it can better compress the first spring 13, so that the first spring 13 forms an upward elastic force, thereby making the contact between the first conductive portion 12 and the circuit board 5 more stable.

[0034] The second type is: the second conductive portion 14 and the metal frame 11 are of a split structure, and the second conductive portion 14 is mounted on the metal frame 11 in a floating manner through a first spring 13, and the first conductive portion 12 is integrally extended and formed on the upper end of one side of the metal frame 11, and the second conductive portion 14 and the first conductive portion 12 are in contact with the circuit board 5 at the same time. Since the second conductive portion 14 is mounted on the metal frame 11 in a floating manner through the first spring 13, the contact between the second conductive portion 14 and the circuit board 5 is more stable, and the quality of the conductive connection can be better guaranteed. In addition, since the second conductive portion 14 is mounted on the metal frame 11 in a floating manner through the first spring 13, the upper end of the second conductive portion 14 can be set higher so that the upper end surface of the second conductive portion 14 is higher than the upper end surface of the first conductive portion 12, so that when the second conductive portion 14 contacts the circuit board 5, it can better compress the first spring 13, so that the first spring 13 forms an upward elastic force, thereby making the contact between the second conductive portion 14 and the circuit board 5 more stable.

[0035] The third type is: the first conductive portion 12 and the second conductive portion 14 are both split structures with the metal frame 11, and the first conductive portion 12 and the second conductive portion 14 are respectively mounted on the metal frame 11 in a floating manner through a first spring 13, and the second conductive portion 14 and the first conductive portion 12 are in contact with the circuit board 5 at the same time. Since the first conductive portion 12 and the second conductive portion 14 are respectively mounted on the metal frame 11 in a floating manner through the first spring 13, the first conductive portion 12 and the second conductive portion 14 are in contact with the circuit board 5 more stably, and the quality of the conduction can be better guaranteed.

[0036] This embodiment is described by taking the first structure as an example.

[0037] The metal frame 11 includes a third conductive portion 111 bent into a V shape and used to contact an electrode of the battery 3, and a first straight rod portion 112 and a second straight rod portion 113 bent upwardly along both sides of the third conductive portion 111, the first conductive portion 12 is extended upwardly along the first straight rod portion 112, the lower end of the first spring 13 is sleeved and fixed to the upper end of the second straight rod portion 113, and the lower end of the second conductive portion 14 is penetrated and fixed to the upper end of the first spring 13. The third conductive portion 111 can also be set in a slightly inclined state, which is convenient for more stable conduction with the battery.

[0038] Combination Fig.11As shown, the inner hole of the first spring 13 is divided into three sections, including an upper opening section 131, a middle hole section 132 and a lower opening section 133 distributed from top to bottom, wherein the diameters of the upper opening section 131 and the lower opening section 133 are both larger than the diameter of the middle hole section 132, and the lower end of the second guiding portion 14 is penetrated and fixed in the upper opening section 131 and does not penetrate into the middle hole section 132; the upper end of the second straight rod portion 113 is penetrated and fixed in the lower opening section 133 and does not penetrate into the middle hole section 132, and its assembly structure is extremely stable.

[0039] Combination Figure 1-11As shown, a flashlight comprises a body 2, a battery 3 arranged in the body 2, a lamp holder 4 detachably mounted on the body 2, a circuit board 5 mounted in the lamp holder 4, a light source 51 arranged on the circuit board 5, and a lamp cover 6 mounted on the upper end of the lamp holder 4 and covering the light source 51, a first conductive sheet 52 and a second conductive sheet 53 and a third conductive sheet 54 located between the first conductive sheet 52 and the second conductive sheet 53 are arranged at the lower end of the circuit board 5, the third conductive sheet 54 contacts with one electrode of the battery 3 to conduct, and is characterized in that: it also comprises the above-mentioned spring conductive structure arranged in the body 2, a metal frame 11 is penetrated in the body 2, the battery 3 is placed in the receiving groove 110 of the metal frame 11, and the other electrode of the battery 3 contacts with the bottom of the metal frame 11 and forms electrical conduction, and the first conductive portion 12 and the second conductive portion 14 contact with the first conductive sheet 52 and the second conductive sheet 53 respectively and form electrical conduction. When working, the other electrode of the battery 3 is in contact with the metal frame 11, and one electrode of the battery 3 is in contact with the third conductive sheet 54 at the lower end of the circuit board 5 to be conductive, and the first conductive portion 12 and the second conductive portion 14 of the spring conductive structure are in contact with the first conductive sheet 52 and the second conductive sheet 53 respectively, and form electrical conduction, so that both electrodes of the battery 3 are in electrical conduction with the circuit board 5, that is, the battery 3 can supply power to the light source on the circuit board 5, so as to realize light emission. Since the flashlight in the utility model adopts the spring conductive structure 1 to make the battery 3 and the circuit board 5 form electrical conduction, the metal frame 11 has a receiving groove 110 for accommodating the battery 3. When the battery 3 is placed in the receiving groove 110, the other electrode of the battery 3 contacts the bottom of the metal frame 11 and forms electrical conduction. It does not need welding, and can be assembled to achieve conduction, and the operation is extremely simple. At least one of the first conductive part 12 and the second conductive part 14 is a separate structure from the metal frame 11, and the first conductive part 12 and / or the second conductive part 14 is installed on the metal frame 11 in a floating manner through the first spring 13 and is used for conductive connection with the circuit board 5, thereby making the contact between the spring conductive structure 1 and the circuit board 5 more stable, and the quality of the conductive connection can be better guaranteed, and there is no need for welding between them, and the assembly is also very simple. In addition, after the spring conductive structure 1 is installed in the flashlight, since there is no direct contact and conduction between the spring conductive structure 1 and the battery 3 and the circuit board 5 in the flashlight, there is no wire welding structure between them, so that during the disassembly and assembly of the flashlight, there is no need to consider the problem of wire routing, and there will be no problem of wire linkage with the battery 3 and the circuit board 5, which is easy to cause tin stripping. It is extremely easy to disassemble and assemble, and is convenient for maintenance.

[0040] A second spring 7 is also provided at the bottom of the inner cavity of the barrel 2, and the upper end of the second spring 7 presses against the bottom surface of the metal frame 11, so that the metal frame 11 and the other electrode of the battery 3 are elastically abutted and connected, which can further ensure that the battery 3 and the spring conductive structure 1 form a more stable electrical conduction.

[0041] The upper end of the barrel 2 is provided with an L-shaped introduction groove 21 and a locking groove 22 connected to the introduction groove 21, and both sides of the locking groove 22 have travel limit blocking surfaces 221; the lamp head 4 is provided with a latching protrusion 41 inside, and the latching protrusion 41 is pressed into the lock groove 22 along the introduction groove 21, and the elastic force of the second spring 7 lifts up the battery 3 and the lamp head 4, so that the latching protrusion 41 falls between the two travel limit blocking surfaces 221, thereby ensuring that the flashlight structure formed after assembly is more stable, so that the lamp head 4 will not accidentally detach from the barrel 2, and the stability of the assembly structure is improved.

[0042] The barrel 2 is provided with a limiting installation groove 20 for installing the spring conductive structure 1. The spring conductive structure 1 is installed in the limiting installation groove 20 and is movable; however, it can prevent the spring conductive structure from excessively deflecting, ensure the stability of the spring conductive structure assembly, and at the same time help to improve the conductive connection ability of the spring conductive structure.

[0043] The upper end of the first conductive connection portion 12 is bent downward by 180 degrees to form a first bent portion 121, and a first arc-shaped contact surface 120 is formed on the upper end of the first conductive connection portion 12. The upper end of the second conductive connection portion 14 is bent downward by 180 degrees to form a second bent portion 141, and a second arc-shaped contact surface 140 is formed on the upper end of the second conductive connection portion 14. Since the upper ends of the first conductive connection portion 12 and the second conductive connection portion 14 both form arc-shaped contact surfaces, when the lamp holder 4 rotates relative to the barrel 2, the contact areas of the first conductive connection portion 12 and the second conductive connection portion 14 with the first conductive sheet 52 and the second conductive sheet 53 are small, respectively, so that the sliding between them is smoother, and the stability of the conductive connection can also be ensured.

[0044] The first conductive sheet 52 and the second conductive sheet 53 are both arc-shaped, and the first conductive sheet 52 and the second conductive sheet 53 are spaced apart. When the head 4 rotates relative to the barrel 2 until the first conductive connection portion 12 and the second conductive connection portion 14 are respectively placed in the interval between the two sides of the first conductive sheet 52 and the second conductive sheet 53, electrical conduction cannot be achieved, that is, power is cut off, and the flashlight can be turned off.

[0045] The upper end of the lamp holder 4 is provided with a mounting groove 42 and a mounting hole 43 that passes through the bottom of the mounting groove 42. The circuit board 5 is embedded and fixed in the mounting hole 43, and can also be glued; the lower end of the lampshade 6 is fixed in the mounting groove 42, and can also be glued, or fixed into one by ultrasonic fusion; the outside and / or bottom of the barrel 2 is provided with a connecting ear 23, and the connecting ear 23 is provided with a connecting hole 231, which is used to connect with a rope body or a belt body for easy carrying.

[0046] In summary, the utility model adopts a spring conductive structure 1 to make the battery 3 and the circuit board 5 electrically conductive. The metal frame 11 has a receiving groove 110 for accommodating the battery 3. When the battery 3 is placed in the receiving groove 110, the other electrode of the battery 3 contacts the bottom of the metal frame 11 and forms electrical conduction. It does not require welding, and can be assembled to achieve conduction, which is extremely easy to operate. At least one of the first conductive part 12 and the second conductive part 14 is a split structure with the metal frame 11, and the first conductive part 12 and / or the second conductive part 14 is installed on the metal frame 11 in a floating manner through the first spring 13 and is used for conducting with the circuit board 5, thereby making the contact between the spring conductive structure 1 and the circuit board 5 more stable, and the quality of the conduction can be better guaranteed. There is no need for welding between them, and it is also very easy to assemble. In addition, after the spring conductive structure 1 is installed in the flashlight, since there is no direct contact and conduction between the spring conductive structure 1 and the battery 3 and the circuit board 5 in the flashlight, and there is no wire welding structure between them, during the disassembly and assembly of the flashlight, there is no need to consider the problem of wire routing, and there will be no problem of wire linking the battery 3 and the circuit board 5 and easily causing tin stripping. The disassembly and assembly are extremely simple, and it is convenient for maintenance.

[0047] Of course, the above description is only a specific embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. Any equivalent changes or modifications made according to the structure, characteristics and principles described in the patent application scope of the present invention should be included in the patent application scope of the present invention.

Claims

1. A spring conductive structure, characterized in that: The spring conductive structure (1) comprises a U-shaped metal frame (11) for conducting with a battery (3), a first conducting portion (12) arranged at the upper end of one side of the metal frame (11), and a second conducting portion (14) arranged at the upper end of the other side of the metal frame (11), wherein at least one of the first conducting portion (12) and the second conducting portion (14) is a separate structure from the metal frame (11), and the first conducting portion (12) and / or the second conducting portion (14) are mounted on the metal frame (11) in a floating manner through a first spring (13) and are used for conducting with a circuit board (5), and the metal frame (11) has a receiving groove (110) for receiving the battery (3).

2. A spring conductive structure according to claim 1, characterized in that: The metal frame (11) comprises a third conductive portion (111) bent into a V shape and used for contacting an electrode in a battery (3), and a first straight rod portion (112) and a second straight rod portion (113) bent upwards and formed along two sides of the third conductive portion (111), the first conductive portion (12) extending upwards along the first straight rod portion (112), the lower end of the first spring (13) being sleeved and fixed on the upper end of the second straight rod portion (113), and the lower end of the second conductive portion (14) being passed through and fixed on the upper end of the first spring (13).

3. A spring conductive structure according to claim 1, characterized in that: The upper end of the first conductive portion (12) is bent downward by 180 degrees to form a first bent portion (121), and a first arc-shaped contact surface (120) is formed at the upper end of the first conductive portion (12).

4. A spring conductive structure according to claim 1, characterized in that: The upper end of the second conductive portion (14) is bent downward by 180 degrees to form a second bent portion (141), and a second arc-shaped contact surface (140) is formed at the upper end of the second conductive portion (14).

5. A spring conductive structure according to claim 2, characterized in that: The inner hole of the first spring (13) is divided into three sections, including an upper opening section (131), a middle hole section (132) and a lower opening section (133) distributed from top to bottom, wherein the diameters of the upper opening section (131) and the lower opening section (133) are both larger than the diameter of the middle hole section (132); the lower end of the second guide portion (14) is fixedly disposed in the upper opening section (131) and does not penetrate into the middle hole section (132); the upper end of the second straight rod portion (113) is fixedly disposed in the lower opening section (133) and does not penetrate into the middle hole section (132).

6. A flashlight, comprising a body (2), a battery (3) disposed in the body (2), a lamp holder (4) detachably mounted on the body (2), a circuit board (5) mounted in the lamp holder (4), a light source (51) disposed on the circuit board (5), and a lamp cover (6) mounted on the upper end of the lamp holder (4) and covering the light source (51), wherein a first conductive sheet (52) and a second conductive sheet (53) and a third conductive sheet (54) located between the first conductive sheet (52) and the second conductive sheet (53) are disposed at the lower end of the circuit board (5), and the third conductive sheet (54) is in contact with one electrode of the battery (3) to conduct electricity, characterized in that: It also includes a spring conductive structure as described in any one of claims 1 to 5 arranged in the barrel (2), the metal frame (11) is inserted into the barrel (2), the battery (3) is placed in the receiving groove (110) of the metal frame (11), and the other electrode of the battery (3) contacts with the bottom of the metal frame (11) to form electrical conduction, and the first conductive portion (12) and the second conductive portion (14) are respectively in contact with the first conductive sheet (52) and the second conductive sheet (53) to form electrical conduction.

7. The flashlight according to claim 6, characterized in that: A second spring (7) is also provided at the bottom of the inner cavity of the barrel (2), and the upper end of the second spring (7) presses against the bottom surface of the metal frame (11), so that the metal frame (11) and the other electrode of the battery (3) are elastically contacted and connected.

8. The flashlight according to claim 6, characterized in that: The first conductive sheet (52) and the second conductive sheet (53) are both arc-shaped, and the first conductive sheet (52) and the second conductive sheet (53) are distributed at intervals.

9. The flashlight according to claim 7, characterized in that: The upper end of the barrel (2) is provided with an L-shaped introduction groove (21) and a locking groove (22) connected to the introduction groove (21), and both sides of the locking groove (22) are provided with travel limit blocking surfaces (221); the lamp head (4) is provided with a locking protrusion (41) inside, and the locking protrusion (41) is pressed along the introduction groove (21) and enters the locking groove (22), and under the elastic force of the second spring (7) to lift the battery (3) and the lamp head (4), the locking protrusion (41) falls between the two travel limit blocking surfaces (221).

10. The flashlight according to any one of claims 7 to 9, characterized in that: The upper end of the lamp holder (4) is provided with a mounting groove (42) and a mounting hole (43) penetrating the bottom of the mounting groove (42); the circuit board (5) is embedded and fixed in the mounting hole (43); the lower end of the lampshade (6) is fixed in the mounting groove (42); the outer part and / or the bottom of the barrel (2) is provided with a connecting ear (23), and the connecting ear (23) is provided with a connecting hole (231).

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