Mobile lighting device

Abstract

The utility model discloses a mobile lighting equipment, including the casing and power, one end of casing is provided with light source subassembly, and power is located in the casing still includes: elastic component, elastic component is located in the casing, and elastic component includes integrative setting, and elastic clamping jaw that can open and shut, and power can be contained in elastic clamping jaw and is connected with light source subassembly electricity, adjusting component, adjusting component includes end cover, rotating part and movable element, and end cover is cylindrically set, and one end is connected with the other end of casing, and the lateral wall is seted up with guide groove, rotating part cover is located in end cover, and movable element is located in end cover, and can reciprocate along the axis of end cover, the outer wall of movable element is provided with the locating column, and the locating column passes through guide groove and is connected with rotating part, and the locating column can move along guide groove. The application can guarantee the stability of circuit at the same time compatible with the battery of different sizes, widens the application scene, and has promoted the convenience of use.

Description

Technical Field

[0001] This application relates to the field of lighting equipment technology, and in particular to a mobile lighting device. Background Technology

[0002] In daily life, flashlights are a common portable lighting device. Whether dealing with sudden power outages at night, or in outdoor adventures, night patrols, or emergency rescues, flashlights can provide essential visual support with their light, ensuring the smooth progress of various activities.

[0003] Currently, most flashlights on the market rely on batteries for power. However, a common problem is that many flashlights are designed to only use a specific type of battery. In practice, users often cannot always ensure they have a stock of that specific battery type. When a flashlight only works with one type of battery, if that battery runs out or is damaged, and a replacement cannot be found nearby, the flashlight will not function properly. For example, during power outages caused by natural disasters (such as earthquakes or floods), flashlights are crucial tools for finding safe exits and for self-rescue and mutual aid in the dark. If the compatible battery type is unavailable, the user cannot use the flashlight for illumination, increasing the risk of injury or disorientation in dangerous environments, which undoubtedly causes significant inconvenience. Utility Model Content

[0004] The main purpose of this application is to propose a mobile lighting device that aims to enhance battery compatibility, expand application scenarios, and improve ease of use.

[0005] To achieve the above objectives, this application proposes a portable lighting device, including a housing and a power supply. A light source assembly is disposed at one end of the housing, and the power supply is located within the housing. The device also includes: An elastic component is located within the housing. The elastic component includes an integrally formed, openable elastic gripper. The power source is accommodated in the elastic gripper and electrically connected to the light source component. An adjustment assembly includes an end cap, a rotating component, and a movable component. The end cap is cylindrical, with one end connected to the other end of the housing, and a guide groove is provided on its side wall. The rotating component is fitted over the end cap, and the movable component is located inside the end cap and can reciprocate along the axis of the end cap. A positioning post is provided on the outer wall of the movable component, which passes through the guide groove and is connected to the rotating component, and the positioning post can move along the guide groove.

[0006] In some embodiments, a conductive component is further included, the conductive component including a first circuit board and a second circuit board, the first circuit board and the second circuit board being respectively used to connect the two poles of the power supply, the first circuit board being disposed at one end of the movable member facing the housing and being movable together with the movable member, and the second circuit board being disposed on the inner wall of the bottom of the housing and electrically connected to the light source assembly.

[0007] In some embodiments, the guide groove is inclined along the direction of the end cap toward the light source assembly, and the rotating member and the movable member move toward or away from the light source assembly along the direction of the guide groove with the positioning post.

[0008] In some embodiments, a positioning hole is provided at one end of the guide groove near the light source assembly, and the positioning post can engage with the positioning hole to fix the rotating member at the position of the positioning hole.

[0009] In some embodiments, the end of the first circuit board facing away from the movable member is provided with a first elastic conductive element and a second elastic conductive element that do not contact each other. The first elastic conductive element is used to contact the battery so that the battery and the first circuit board are electrically connected.

[0010] In some embodiments, the inner wall of the housing is provided with a stepped surface that abuts against the second elastic conductive element, so that the first circuit board and the inner wall of the housing are electrically connected.

[0011] In some embodiments, the second circuit board is disposed on the bottom inner wall of the housing and is electrically connected to the inner wall of the housing, and the first circuit board is electrically connected to the second circuit board through the inner wall of the housing; A third elastic conductive element is provided at one end of the second circuit board facing away from the light source assembly. The third elastic conductive element is used to contact the battery so that the battery and the second circuit board are electrically connected.

[0012] In some embodiments, the elastic gripper includes a mounting ring and an elastic plate. The mounting ring is fixed to the inner wall of the housing, one end of the elastic plate is connected to the mounting ring, and the other end of the elastic plate can move closer to or further away from the inner wall of the housing.

[0013] In some embodiments, the light source assembly further includes a substrate and a light-emitting element, the light-emitting element being disposed on the substrate, and the second circuit board being electrically connected to the substrate.

[0014] In some embodiments, the housing further includes a charging interface, and the housing is provided with a charging circuit connected to the charging interface inside the housing. The charging circuit is electrically connected to the substrate through the second circuit board.

[0015] This application proposes a mobile lighting device that adapts to different battery lengths by setting an adjustment component inside the housing to adjust the distance between conductive components, and adapts to different battery widths by setting an elastic component, so that the mobile lighting device can be compatible with batteries of different sizes while ensuring circuit stability, thus broadening the application scenarios and improving the ease of use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a portable lighting device in one embodiment of this application; Figure 2 This is an exploded view of the structure of a mobile lighting device in one embodiment of this application; Figure 3 This is a schematic diagram of the end cap structure in one embodiment of this application; Figure 4 This is a schematic diagram of the structure of the elastic component in one embodiment of this application; Figure 5 This is a cross-sectional schematic diagram of a portable lighting device in one embodiment of this application; Figure 6 This is a cross-sectional schematic diagram of a mobile lighting device in another embodiment of this application.

[0017] Explanation of reference numerals in the attached figures: Housing 100; end cap 110; guide groove 111; positioning hole 112; rotating component 120; positioning post 121; movable component 130; first circuit board 140; first elastic conductive component 142; second elastic conductive component 143; second circuit board 150; third elastic conductive component 151; elastic gripper 160; elastic sheet 161; mounting ring 162; battery 200; light source assembly 300. Detailed Implementation

[0018] The solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments in this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0019] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0020] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0021] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0022] Please see Figure 1 and Figure 2 This application provides a portable lighting device, including a housing 100 and a power supply. A light source assembly 300 is disposed at one end of the housing 100, and the power supply is located in the housing 100. The device also includes: The elastic component is located inside the housing 100. The elastic component includes an integrally set, openable elastic gripper 160. The power supply can be accommodated in the elastic gripper 160 and is electrically connected to the light source assembly 300. The adjustment assembly includes an end cap 110, a rotating member 120, and a movable member 130. The end cap 110 is cylindrical, with one end connected to the other end of the housing 100, and a guide groove 111 is provided on its side wall. The rotating member 120 is covered by the end cap 110, and the movable member 130 is located inside the end cap 110 and can reciprocate along the axis of the end cap 110. A positioning post 121 is provided on the outer wall of the movable member 130. The positioning post 121 passes through the guide groove 111 and is connected to the rotating member 120, and the positioning post 121 can move along the guide groove 111.

[0023] In this embodiment, the portable lighting device is a flashlight, including a housing 100, a power supply, a light source assembly 300, an elastic component, and an adjustment component. The light source assembly 300 is disposed at one end of the housing 100, and the power supply is disposed inside the housing 100. Through an electrical connection between the power supply and the light source assembly 300, the power supply provides electrical energy to the light source assembly to emit light for illumination. An adjustment component is disposed at the end of the housing 100 facing away from the light source assembly 300. The adjustment component includes an end cap 110, a rotating member 120, and a movable member 130. Structurally, the rotating member 120 covers the outside of the end cap 110, and the movable member 130 is disposed inside the end cap 110. Here, the rotating member 120 has the function of rotating relative to the end cap 110. Specifically, when the user rotates the rotating member 120 on the outside of the end cap 110, the rotating member 120 can drive the movable member 130 to rotate together and move closer to or away from the light source assembly 300. Since the rotating part 120 and the movable part 130 are connected together by the positioning post 121 that passes through the end cover 110, and the end cover 110 is provided with a guide groove 111 for the positioning post 121 to pass through, the movable part 130 will move together with the rotating part 120 when the rotating part 120 moves.

[0024] In this embodiment, the power source is a cylindrical battery 200. A cylindrical receiving cavity is provided within the internal space of the housing 100. This cavity primarily houses the battery 200, providing stable and continuous power support for the mobile lighting device proposed in this application. An elastic component is also provided inside this cavity. This elastic component includes an openable elastic gripper 160, which is installed in the middle of the cavity. When the battery 200 is placed into the receiving cavity within the housing 100, the elastic gripper 160 clamps the battery 200. Specifically, the elastic gripper 160 includes elastic pieces 161. Multiple elastic pieces 161 are disposed on the inner sidewall of the receiving cavity for clamping the battery 200 placed within the housing 100. Furthermore, since the elastic pieces 161 tend to move away from the sidewall of the receiving cavity, even if batteries 200 of different widths are placed within the housing 100, they can be clamped by the multiple elastic pieces 161, thus allowing the housing 100 to accommodate batteries 200 within a certain width range.

[0025] Please see Figure 1 and Figure 3 In some embodiments, the mobile lighting device further includes a conductive component, which includes a first circuit board 140 and a second circuit board 150. The first circuit board 140 and the second circuit board 150 are respectively used to connect the two poles of the power supply. The first circuit board 140 is disposed at one end of the movable member 130 facing the housing 100 and can move with the movable member 130. The second circuit board 150 is disposed on the inner wall of the bottom of the housing 100 and is electrically connected to the light source assembly 300.

[0026] The conductive components include a first circuit board 140 and a second circuit board 150. The first circuit board 140 is mounted on the end of the movable member 130 away from the rotating member 120, and the second circuit board 150 is mounted at the bottom of the receiving cavity inside the housing 100, and is electrically connected to the light source assembly 300. When a battery 200 is placed inside the receiving cavity of the housing 100, the first circuit board 140 and the second circuit board 150 establish electrical connections with the two poles of the battery 200, respectively, and power the light source assembly 300 through the second circuit board 150, thereby enabling the battery 200 to power the portable lighting device. It should be noted that the first circuit board 140 can move closer to or further away from the second circuit board 150 as the movable member 130 moves. By adjusting the distance between the first circuit board 140 and the second circuit board 150, the housing 100 can accommodate a battery 200 within a certain length range while maintaining stable circuit conduction.

[0027] By setting an adjustment component inside the housing 100 to adjust the distance between the conductive components, the mobile lighting device proposed in this application can be adapted to batteries 200 of different lengths; by setting the elastic gripper 160, the mobile lighting device proposed in this application can be adapted to batteries 200 of different widths; in this way, while ensuring stable circuit conduction, the mobile lighting device proposed in this application can be compatible with batteries 200 of different sizes, improving ease of use and optimizing user experience.

[0028] In some embodiments, the guide groove 111 is inclined along the direction of the rotating member 120 toward the light source assembly 300, and the rotating member 120 and the movable member 130 move toward or away from the light source assembly 300 along the direction of the guide groove 111 with the positioning post 121.

[0029] In this embodiment, the end cap 110 is a hollow cylinder. A movable component 130 is disposed within this hollow cylinder, and a rotating component 120 is fitted onto the outer side of this hollow cylinder. The movable component 130 is located at the top of the receiving cavity within the housing 100. There are two positioning posts 121, symmetrically arranged on the outer wall of the movable component 130. Two guide grooves 111 penetrate the side wall of the hollow cylinder and are symmetrically arranged. One end of each positioning post 121 connects to the inner wall of the rotating component 120, and the other end passes through the guide groove 111 and connects to the outer wall of the movable component 130. Figure 3As shown, the direction of the rotating member 120 toward the light source assembly 300 is from top to bottom, therefore the guide groove 111 is designed to slope from top to bottom. With the coordinated action of the guide groove 111 and the positioning post 121, when the user rotates the rotating member 120, the positioning post 121 moves within the guide groove 111, causing the rotating member 120 to move toward or away from the second circuit board 150 during rotation. Since the first circuit board 140 is located at the lower end of the movable member 130, and the movable member 130 is connected to the rotating member 120 via the positioning post 121, the movable member 130 will also move toward the second circuit board 150 inside the housing 100, thereby adjusting the distance between the first circuit board 140 and the second circuit board 150 so that the first circuit board 140 and the second circuit board 150 can accommodate batteries 200 of different lengths.

[0030] In some embodiments, a positioning hole 112 is provided at one end of the guide groove 111 near the light source assembly 300, and the positioning post 121 can engage with the positioning hole 112 to fix the rotating member 120 at the position of the positioning hole 112.

[0031] In this embodiment, as Figure 3 As shown, a positioning hole 112 is provided at the lower end of the guide groove 111. When the rotating part 120 moves downward to its maximum extent, the positioning pin 121 can engage with the positioning hole 112 of the guide groove 111, and the movable part 130 also moves downward to its maximum extent. At this time, the distance between the first circuit board 140 and the second circuit board 150 at the lower end of the movable part 130 is the closest. Through the cooperation of the positioning hole 112 and the positioning pin 121, the movable block can maintain this distance, thus playing a locking role.

[0032] Understandably, in actual use, multiple positioning holes 112 can also be provided along the edge of the guide groove 111 to divide the distance between the first circuit board 140 and the second circuit board 150 into multiple levels, so as to adapt to batteries 200 of different length ranges.

[0033] In some embodiments, the end of the first circuit board 140 facing away from the movable member 130 is provided with a first elastic conductive member 142 and a second elastic conductive member 143 that do not contact each other. The first elastic conductive member 142 is used to contact the battery 200 so that the battery 200 and the first circuit board 140 are electrically connected.

[0034] In some embodiments, the inner wall of the housing 100 is provided with a stepped surface that abuts against the second elastic conductive member 143, so that the first circuit board 140 and the inner wall of the housing 100 are electrically connected.

[0035] In some embodiments, the second circuit board 150 is disposed on the bottom inner wall of the housing 100 and is electrically connected to the inner wall of the housing 100, and the first circuit board 140 is electrically connected to the second circuit board 150 through the inner wall of the housing 100. A third elastic conductive element 151 is provided at one end of the second circuit board 150 facing away from the light source assembly 300. The third elastic conductive element 151 is used to contact the battery 200 so that the battery 200 and the second circuit board 150 are electrically connected.

[0036] In this embodiment, the first elastic conductive element 142 and the second elastic conductive element 143 are disposed at the end of the first circuit board 140 facing away from the movable element 130. Both the first elastic conductive element 142 and the second elastic conductive element 143 are conductive springs, and the inner diameter of the second elastic conductive element 143 is larger than the outer diameter of the first elastic conductive element 142. The first elastic conductive element 142 is placed in the hollow area formed by the inner diameter of the second elastic conductive element 143, and there is no contact between the first elastic conductive element 142 and the second elastic conductive element 143 to prevent short circuit.

[0037] Specifically, one end of the first elastic conductive member 142 is fixedly connected to the first circuit board 140, and the other end of the first elastic conductive member 142 is used to abut against one of the poles of the battery 200 inside the housing 100, so that the battery 200 and the first circuit board 140 are electrically connected.

[0038] In this design, one end of the second elastic conductive member 143 is fixedly connected to the first circuit board 140, and a stepped surface is provided on the inner wall of the housing 100 to abut against the other end of the second elastic conductive member 143, so that the first circuit board 140 establishes an electrical connection with the inner wall of the housing 100 through the second elastic conductive member 143. Specifically, the inner wall of the housing 100 is made of a conductive material, and the outer wall of the housing 100 is fitted over the inner wall of the housing 100 and is made of an insulating material.

[0039] like Figure 1As shown, a second circuit board 150 is disposed at the bottom of the receiving cavity within the housing 100. The second circuit board 150 is located above the light source assembly 300 and is electrically connected to the light source assembly 300. A third elastic conductive element 151 is disposed at the end of the second circuit board 150 facing away from the light source assembly 300. The lower end of the third elastic conductive element 151 is connected to the second circuit board 150, and the upper end of the third elastic conductive element 151 is used to connect to the other pole of the battery 200, so that the battery 200 and the second circuit board 150 are connected. It should be noted that when the rotating component 120 moves toward the second circuit board 150, the movable component 130 will move along with the first circuit board 140 toward the second circuit board 150 until the positioning post 121 engages with the positioning hole 112 on the end cover 110, thus stabilizing the distance between the first circuit board 140 and the second circuit board 150. At this time, the second elastic conductive component 143 is compressed under pressure. When the positioning post 121 disengages from the positioning hole 112, the first circuit board 140 and the movable component 130 will move away from the second circuit board 150 under the rebound force of the second elastic conductive component 143, so that the movable component 130 returns to its original position. Since the first elastic conductive component 142, the second elastic conductive component 143, and the third elastic conductive component 151 are all elastic, they can deform to a certain extent according to the length of the battery 200 inside the housing 100. Therefore, the length range of the battery 200 accommodated inside the housing 100 can be further expanded.

[0040] Please see Figure 4 In some embodiments, the elastic gripper 160 further includes a mounting ring 162, which is fixed to the inner wall of the housing 100. One end of the elastic piece 161 is connected to the mounting ring 162, and the other end of the elastic piece 161 can move closer to or away from the inner wall of the housing 100.

[0041] In this embodiment, the elastic gripper 160 includes a mounting ring 162 and elastic pieces 161. The mounting ring 162 is fixedly disposed on the inner wall of the housing 100. There are three elastic pieces 161, and one end of each of the three elastic pieces 161 is fixed to the mounting ring 162. The distance between any two elastic pieces 161 is approximately equal. The end of the elastic piece 161 away from the mounting ring 162 is a free end. This free end tends to move towards the battery 200 inside the housing 100 when no force is applied, so that the elastic gripper 160 can clamp batteries 200 of different widths.

[0042] It is understood that in other embodiments not shown, the number of elastic sheets 161 may also be more than three, depending on actual needs. For example, four elastic sheets 161 may be provided, arranged in pairs opposite each other on the mounting ring 162.

[0043] In some embodiments, the light source assembly 300 further includes a substrate and a light-emitting element, the light-emitting element being disposed on the substrate, and the second circuit board 150 being electrically connected to the substrate.

[0044] In some embodiments, the housing 100 further includes a charging interface, and the housing 100 is provided with a charging circuit connected to the charging interface inside the housing 100. The charging circuit is electrically connected to the substrate through the second circuit board 150.

[0045] In this embodiment, a charging interface is provided on the housing 100, and a charging circuit connected to the charging interface is provided inside the housing 100. The charging circuit is also connected to the second circuit board 150. The light source assembly 300 includes a substrate and a light-emitting element. The second circuit board 150 is electrically connected to the substrate, and the light-emitting element is mounted on the substrate.

[0046] In practical use, when the portable lighting device proposed in this application is being charged, one pole of the current is transmitted from the second circuit board 150 to one pole of the battery 200 through the third elastic conductive member 151; the other pole of the current is transmitted from the second circuit board 150 through the inner wall of the housing 100, the second elastic conductive member 143, the first circuit board 140 and the first elastic conductive member 142 to the other pole of the battery 200; thus forming an electrical circuit to charge the battery 200 inside the housing 100.

[0047] When illumination is needed, the battery 200 inside the housing 100 transmits current in reverse to the second circuit board 150 through the aforementioned charging circuit. The second circuit board 150 then transmits the current through the substrate to the light-emitting element, so that the light-emitting element emits light for illumination.

[0048] Taking the housing 100 as an example, which houses two different sizes of batteries 200 (21700 and 18650 batteries), the first position is defined as the positioning post 121 being fixed at the upper end of the guide groove 111, and the second position is defined as the positioning post 121 being fixed in the positioning hole 112 at the lower end of the guide groove 111. Specifically, when the user rotates the rotating component 120 to fix the positioning post 121 in the first position of the guide groove 111, as shown... Figure 5 As shown, the distance between the first circuit board 140 and the second circuit board 150 is the first distance. At this time, the housing 100 can accommodate a 21700 battery and maintain stable circuit conduction. When the user rotates the rotating component 120 to fix the positioning post 121 in the second position of the guide groove 111, as... Figure 6 As shown, the distance between the second circuit board 150 and the second circuit board 150 is the second distance. At this time, the housing 100 can accommodate the 18650 battery and maintain stable circuit conduction. The first distance is greater than the second distance, and the length and width of the 21700 battery are both greater than those of the 18650 battery.

[0049] In summary, this application proposes a mobile lighting device that, by setting an adjustment component inside the housing 100 to adjust the distance between conductive components to accommodate different lengths of the battery 200, and by setting the elastic gripper 160 to accommodate different widths of the battery 200, enables the mobile lighting device to be compatible with batteries 200 of different sizes while ensuring circuit stability, thus broadening the application scenarios and improving the ease of use.

[0050] The above description is only a part or preferred embodiment of this application. Neither the text nor the drawings should limit the scope of protection of this application. All equivalent structural transformations made using the content of this application's specification and drawings under the overall concept of this application, or direct / indirect applications in other related technical fields, are included within the scope of protection of this application.

Claims

1. A portable lighting device, comprising a housing and a power supply, wherein a light source assembly is disposed at one end of the housing, and the power supply is located within the housing, characterized in that, Also includes: An elastic component is located within the housing. The elastic component includes an integrally formed, openable elastic gripper. The power source is accommodated in the elastic gripper and electrically connected to the light source component. An adjustment assembly includes an end cap, a rotating component, and a movable component. The end cap is cylindrical, with one end connected to the other end of the housing, and a guide groove is provided on its side wall. The rotating component is fitted over the end cap, and the movable component is located inside the end cap and can reciprocate along the axis of the end cap. A positioning post is provided on the outer wall of the movable component, which passes through the guide groove and is connected to the rotating component, and the positioning post can move along the guide groove.

2. The portable lighting device according to claim 1, characterized in that, It also includes a conductive component, which includes a first circuit board and a second circuit board. The first circuit board and the second circuit board are respectively used to connect the two poles of the power supply. The first circuit board is disposed at the end of the movable part facing the housing and can move with the movable part. The second circuit board is disposed on the inner wall of the bottom of the housing and is electrically connected to the light source assembly.

3. The portable lighting device according to claim 2, characterized in that, The guide groove is inclined along the end cover toward the light source assembly, and the rotating member and the movable member move toward or away from the light source assembly along the direction of the guide groove with the positioning post.

4. The portable lighting device according to claim 3, characterized in that, The guide groove has a positioning hole at one end near the light source assembly. The positioning post can engage with the positioning hole to fix the rotating part at the position of the positioning hole.

5. The mobile lighting device according to claim 3, characterized in that, The first circuit board has a first elastic conductive element and a second elastic conductive element that do not contact each other at one end facing away from the movable component. The first elastic conductive element is used to contact the battery so that the battery and the first circuit board are electrically connected.

6. The portable lighting device according to claim 5, characterized in that, The inner wall of the housing is provided with a stepped surface that abuts against the second elastic conductive element, so that the first circuit board and the inner wall of the housing are electrically connected.

7. The portable lighting device according to claim 6, characterized in that, The second circuit board is disposed on the bottom inner wall of the housing and is electrically connected to the inner wall of the housing. The first circuit board is electrically connected to the second circuit board through the inner wall of the housing. A third elastic conductive element is provided at one end of the second circuit board facing away from the light source assembly. The third elastic conductive element is used to contact the battery so that the battery and the second circuit board are electrically connected.

8. The portable lighting device according to claim 1, characterized in that, The elastic gripper includes a mounting ring and an elastic plate. The mounting ring is fixed to the inner wall of the housing. One end of the elastic plate is connected to the mounting ring, and the other end of the elastic plate can move closer to or further away from the inner wall of the housing.

9. The portable lighting device according to claim 2, characterized in that, The light source assembly further includes a substrate and a light-emitting element, the light-emitting element being disposed on the substrate, and the second circuit board being electrically connected to the substrate.

10. The portable lighting device according to claim 9, characterized in that, The housing also includes a charging interface, and a charging circuit connected to the charging interface is provided inside the housing. The charging circuit is electrically connected to the substrate through the second circuit board.

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