Battery rear cover applied to flashlight and flashlight thereof

Abstract

The utility model relates to the technical field of electric torches, in particular to a battery rear cover applied to an electric torch, which comprises a rear cover main body, a cathode conductive piece clamped on the rear cover main body and a magnet embedded on the rear cover main body, a plurality of blocking parts spaced at intervals are formed on the rear cover main body, and limiting parts are arranged on the blocking parts in an extending manner. The negative electrode conductive piece comprises a negative electrode spring of a spiral structure and a winding frame which extends along one end of the negative electrode spring and can expand and contract, and the winding frame extends between the limiting part and the rear cover main body in an expanding and contracting mode and abuts against the multiple resisting parts for restriction; the structure between the negative conductive part and the rear cover body is ingeniously arranged, so that the whole battery rear cover can be conveniently detached to replace a battery or maintain the battery rear cover, and the negative spring and the winding frame arranged on the negative conductive part are both formed by winding a long-strip-shaped conductive material; and the material cost can be controlled at a lower standard.

Description

Technical Field

[0001] The utility model relates to the technical field of flashlights, in particular to a battery back cover applied to a flashlight and the flashlight. Background Art

[0002] When traveling at night, as an important lighting tool, the performance and design of a flashlight are crucial. A flashlight is usually powered by a battery. To meet the needs of different users, some flashlights are equipped with rechargeable batteries. In the structural design of a flashlight, a structure for installing a battery is generally provided at the rear end, including a battery compartment and a back cover fixedly covering the opening of the battery compartment; among them, some flashlights will also be provided with a negative electrode conductive structure on the back cover to facilitate electrical connection with the battery. Such a design can automatically disconnect the battery connection after the cover is opened on the basis of adapting to the flashlight structure, thereby improving the safety and convenience of use. However, there are some problems in the fixed structure design of the negative electrode conductive structure of the existing back cover.

[0003] On the one hand, currently commonly used fixing methods such as welding and riveting can, to a certain extent, ensure the connection firmness between the negative electrode conductive structure and the back cover. However, this design has obvious drawbacks. Once the negative electrode conductive structure and the back cover are disassembled, it is very difficult to assemble them again. Even if the assembly is successful, it is difficult to maintain the original firmness. This undoubtedly increases the use cost and inconvenience for flashlights that need to frequently replace batteries or perform repairs.

[0004] On the other hand, in order to solve the problem of easy disassembly and assembly of the negative electrode conductive structure, the prior art adopts a side-insertion and snap-fitting method to assemble the negative electrode conductive structure. This method requires a tongue structure to be provided on the negative electrode conductive structure, which not only increases the material cost, but also requires some snap-fitting structures to be provided on the basis of side insertion to prevent the negative electrode conductive structure from falling off easily in order to ensure the firmness.

[0005] In summary, there are many problems in the fixed design of the negative electrode conductive structure of the existing flashlight back cover. It is difficult to achieve easy disassembly and assembly while ensuring the firmness, and there are also disadvantages such as high material cost and great operation difficulty. Therefore, it is necessary to propose an improved technical solution to solve the above problems and improve the performance and use convenience of the flashlight. Summary of the Utility Model

[0006] The utility model aims to provide a technical solution that can solve the above problems to overcome the above deficiencies.

[0007] A battery back cover applied to a flashlight, comprising a back cover main body, a negative electrode conductive member clamped on the back cover main body, and a magnet embedded in the back cover main body. Among them, a plurality of spaced-apart resisting portions are formed on the back cover main body, and a limiting portion is extended and arranged on the resisting portion. The negative electrode conductive member includes a negative electrode spring in a spiral structure and a winding frame that can expand and contract formed by extending from one end of the negative electrode spring. The winding frame extends into the space between the limiting portion and the back cover main body by expanding and contracting, and abuts between a plurality of resisting portions for restriction.

[0008] Preferably, the resisting portion includes a strip structure and resisting structures formed at both ends of the strip structure. The resisting structures are integrally formed with the back cover main body. The winding frame abuts and cooperates with the resisting structures, and the limiting portion is formed on the side of the strip structure.

[0009] Preferably, there are three resisting portions, and the winding frame has three sides, and the head end and the tail end of the winding frame together form one side.

[0010] Preferably, the head end of the winding frame is integrally connected to the negative electrode spring, and the tail end of the winding frame has a hand-holding portion extending outwards. The hand-holding portion can extend out of the resisting portion along the space between the strip structure and the back cover main body.

[0011] Preferably, a notch is formed in the middle of the strip structure corresponding to the hand-holding portion.

[0012] Preferably, a receiving hole is formed on the back cover main body. The resisting portion is formed around the back cover main body corresponding to the receiving hole. The negative electrode spring is centered directly above the receiving hole, and the magnet is embedded in the receiving hole.

[0013] A flashlight, comprising the battery back cover applied to a flashlight as described above, further comprising a flashlight main body. A battery cavity is opened at the rear end of the flashlight main body, and an internal thread is provided at the opening position of the battery cavity. An external thread is provided on the side wall of the back cover main body. The back cover main body is installed in the opening of the battery cavity by threaded connection of the external thread and the internal thread.

[0014] Preferably, the back cover main body is flush with the rear end of the flashlight main body, and a tool card interface for facilitating the screwing of the back cover main body is provided on the back of the back cover main body.

[0015] Preferably, a telescopic adjusting sleeve is movably connected to the front end of the flashlight main body, and a lens is installed inside the adjusting sleeve.

[0016] Preferably, a charging interface for charging is further installed on the flashlight main body, and a rubber sealing cover is provided at the position of the flashlight main body where the charging interface is located.

[0017] Compared with the prior art, the beneficial effects of the present utility model are:

[0018] When assembling the back cover main body and the negative conductive member, after shrinking and winding the border to a certain extent, it will not be restricted by the limiting portion, so as to bypass the limiting portion and enter the position between multiple resisting portions. Then, it is made to abut between multiple resisting portions by the way of natural opening. After abutting, the wound border will be automatically restricted by the limiting portion. This assembling operation is simple. When disassembling, since the multiple resisting portions are in a spaced-apart matching structure, by pressing the wound border along the spaced-apart positions, the wound border can be retracted and then bypass the limiting portion to be taken out. Therefore, the structure between the negative conductive member and the back cover main body is ingeniously set, which can facilitate the overall disassembly and replacement of the battery of the battery back cover or the maintenance of the battery back cover and other operations. Moreover, both the negative spring and the wound border provided on the negative conductive member are made of long-strip conductive materials wound, and their material costs can be controlled at a lower standard.

[0019] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 is a schematic structural view of the battery back cover in the present utility model;

[0022] Figure 2 is a schematic exploded structural view of the battery back cover in the present utility model;

[0023] Figure 3 is a schematic structural view of the flashlight in the present utility model;

[0024] Figure 4 is a schematic partial structural view of the flashlight with the battery back cover disassembled in the present utility model;

[0025] Figure 5 is a schematic structural view of the front end of the flashlight in the present utility model.

[0026] The reference numerals and names in the drawings are as follows:

[0027] Rear cover body 10, resisting part 11, strip structure 111, resisting structure 112, notch 113, limiting part 12, accommodating hole 13, tool card interface 14, negative electrode conductive part 20, negative electrode spring 21, winding frame 22, hand-held part 23, magnet 30, flashlight body 40, battery chamber 41, adjusting sleeve 42, lens 43, charging interface 44, rubber sealing cover 45. Detailed implementation manners

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Apparently, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0029] Please refer to Figures 1-5, in the embodiment of the present utility model, a battery back cover for a flashlight is proposed, which includes a back cover main body 10, a negative electrode conductive member 20 clamped on the back cover main body 10, and a magnet 30 embedded in the back cover main body 10. The magnet 30 can be used to magnetically attract the flashlight, and the flashlight applying this battery back cover can be attracted to the machine table by the magnet 30 to act as a table lamp; wherein, a plurality of spaced-apart resisting parts 11 are formed on the back cover main body 10, and a limiting part 12 is extended on the resisting part 11. The negative electrode conductive member 20 includes a negative electrode spring 21 with a spiral structure and a winding frame 22 formed by extending from one end of the negative electrode spring 21 and capable of expanding and contracting. The winding frame 22 extends into the space between the limiting part 12 and the back cover main body 10 in a way of expansion and contraction, and abuts between a plurality of resisting parts 11 for restriction; in the above technical solution, a battery back cover is provided, which is used to be installed at the tail of the flashlight main body 40 and can be equipped with a negative electrode conductive member 20 to make electrical contact with the battery installed in the flashlight main body 40. In terms of structural design, the battery back cover mainly includes a back cover main body 10, a negative electrode conductive member 20 and a magnet 30. Among them, the negative electrode conductive member 20 has a negative electrode spring 21 and a winding frame 22. The negative electrode spring 21 is used to make electrical contact with the negative electrode of the battery, and the winding frame 22 is used to install the negative electrode spring 21 on the back cover main body 10. Through the structure of the frame combined with a plurality of resisting parts 11, the winding frame 22 can abut between a plurality of resisting parts 11 when contracting to a certain extent. On this basis, a limiting part 12 is further provided, so that the winding frame 22 after abutment can be restricted between the limiting part 12 and the back cover main body 10. Through this setting, when assembling the back cover main body 10 and the negative electrode conductive member 20, the winding frame 22 is not restricted by the limiting part 12 after contracting to a certain extent, so as to bypass the limiting part 12 and enter the position between a plurality of resisting parts 11, and then abut between a plurality of resisting parts 11 by natural expansion. The winding frame 22 after abutment will be automatically restricted by the limiting part 12. This assembly operation is simple. When disassembling, since the plurality of resisting parts 11 are spaced-apart matching structures, by pressing the winding frame 22 at the spaced-apart positions, the winding frame 22 can be retracted to bypass the limiting part 12 and then taken out. Therefore, the structure between the negative electrode conductive member 20 and the back cover main body 10 is ingeniously set, which can facilitate the overall disassembly and replacement of the battery of the battery back cover or the maintenance of the battery back cover and other operations. Moreover, both the negative electrode spring 21 and the winding frame 22 provided on the negative electrode conductive member 20 are wound from strip-shaped conductive materials, and the material cost can be controlled at a lower standard.

[0030] Please refer to Figures 1-2On the basis of the above technical solution, it is further proposed that the blocking portion 11 includes a strip structure 111 and blocking structures 112 formed at both ends of the strip structure 111, and the blocking structure 112 is integrally formed with the rear cover body 10, thereby enhancing the stability of the structure; the winding frame 22 is in abutment with the blocking structure 112, and the limiting portion 12 is formed on the side of the strip structure 111, so that the winding frame 22 can be stably fixed on the rear cover body 10 after installation, thereby ensuring the reliability of the battery rear cover during use;

[0031] Please refer to Figures 1-2 On the basis of the above technical solution, it is further proposed that three blocking parts 11 are provided, the winding frame 22 is provided with three sides, and the head end and the tail end of the winding frame 22 together constitute one of the sides; the head end of the winding frame 22 is integrally connected with the negative electrode spring 21 to ensure the continuity of the negative electrode conductivity. During the assembly process, the winding frame 22 also utilizes its expandable and contractible characteristics to first shrink to a certain extent, bypass the limiting part 12 and enter the position between the three blocking parts 11, and then naturally opens and abuts between the blocking parts 11, and is constrained by the limiting part 12 to complete the assembly; the tail end of the winding frame 22 has a hand-pinching part 23 extending outward, and the hand-pinching part 23 can extend out of the blocking part 11 along the spacing between the strip structure 111 and the rear cover body 10; at the corresponding hand A notch 113 is provided in the middle of the strip structure 111 of the pinch portion 23. The user can pinch the pinch portion 23 to press and contract the winding frame 22 inward along the notch 113 so that it bypasses the limiting portion 12, thereby taking out the winding frame 22 and the negative electrode conductive member 20 to achieve disassembly. The pinch portion 23 design at the tail end of the winding frame 22 provides a convenient fulcrum for the user. During disassembly, the user does not need to laboriously find a position to press the winding frame 22. The disassembly operation can be easily performed by pinching the pinch portion 23. This design takes into account the needs of users in actual use, making battery replacement and maintenance operations of the battery back cover more convenient. Users can quickly and easily complete the disassembly and assembly process, thereby improving user satisfaction with the product and user experience.

[0032] Please refer to Figures 1-2 On the basis of the above technical scheme, it is further proposed that a receiving hole 13 is opened on the rear cover body 10, and the resisting portion 11 is formed around the corresponding receiving hole 13 on the rear cover body 10, the negative pole spring 21 is centered directly above the receiving hole 13, and the magnet 30 is embedded in the receiving hole 13. The setting of the receiving hole 13 facilitates the assembly of the magnet 30 and can provide a certain activity space for the negative pole spring 21, ensuring that its spring structure can better produce free deformation in the space during the elastic extrusion process, thereby improving the service life of the spring to a certain extent.

[0033] Please refer to Figures 3-5, based on the structure of the above battery back cover, a flashlight applied to the battery back cover is proposed, which includes a flashlight body 40. A battery chamber 41 is opened at the rear end of the flashlight body 40, and internal threads are provided at the opening position of the battery chamber 41. External threads are provided on the side wall of the back cover body 10. The back cover body 10 is installed in the opening of the battery chamber 41 through the threaded connection of the external threads and the internal threads. When installing the battery, first open the battery back cover, make the positive electrode of the battery extend into the battery chamber 41, and the negative electrode is at the opening position of the battery chamber 41. Then cover the battery back cover and tighten it through the threaded cooperation of the external threads and the internal threads; in terms of structural design, the back cover body 10 is flush with the rear end of the flashlight body 40, and the cooperation between the back cover body 10 and the flashlight body 40 is more complete and beautiful. Moreover, a tool card interface 14 for facilitating the screwing of the back cover body 10 is provided on the back of the back cover body 10, which is convenient for the disassembly of the back cover body 10, and a special tool is required, so as to prevent the back cover body 10 of the flashlight body 40 from being easily disassembled; a telescopic adjustment sleeve 42 is movably connected to the front end of the flashlight body 40, and a lens 43 is installed inside the adjustment sleeve 42. Through this setting, the focal length of the flashlight body 40 can be adjusted, so as to realize the adjustable operation of focusing and defocusing; if the battery is set as a rechargeable battery, a charging interface 44 for charging can also be installed on the flashlight body 40, and a rubber seal cover 45 is provided at the position of the flashlight body 40 where the charging interface 44 is located.

[0034] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model.

Claims

1. A battery back cover applied to a flashlight, characterized in that, It includes a rear cover body (10), a negative electrode conductive member (20) snap-fitted on the rear cover body (10), and a magnet (30) embedded in the rear cover body (10). Among them, a plurality of spaced-apart resisting portions (11) are formed on the rear cover body (10), and a limiting portion (12) is extended and provided on the resisting portion (11). The negative electrode conductive member (20) includes a negative electrode spring (21) in a spiral structure and a winding frame (22) formed by extending along one end of the negative electrode spring (21) and capable of expanding and contracting. The winding frame (22) extends into the space between the limiting portion (12) and the rear cover body (10) by expanding and contracting, and abuts between a plurality of resisting portions (11) for restriction.

2. The battery back cover for a flashlight according to claim 1, characterized in that, The resisting portion (11) includes a strip structure (111) and resisting structures (112) formed at both ends of the strip structure (111). The resisting structures (112) are integrally formed with the rear cover body (10). The winding frame (22) abuts and cooperates with the resisting structures (112), and the limiting portion (12) is formed on the side of the strip structure (111).

3. The battery back cover for a flashlight according to claim 2, characterized in that There are three resisting portions (11). The winding frame (22) has three sides, and the head end and the tail end of the winding frame (22) together form one side.

4. The battery back cover for a flashlight according to claim 3, characterized in that, The head end of the winding frame (22) is integrally connected to the negative electrode spring (21). The tail end of the winding frame (22) has a hand-holding portion (23) extending outward. The hand-holding portion (23) can extend out of the resisting portion (11) along the space between the strip structure (111) and the rear cover body (10).

5. A battery back cover applied to a flashlight according to claim 4, characterized in that, A notch (113) is formed in the middle of the strip structure (111) corresponding to the hand-holding portion (23).

6. The battery back cover applied to a flashlight according to claim 1, wherein A receiving hole (13) is formed in the rear cover body (10). The resisting portion (11) is formed around the rear cover body (10) corresponding to the receiving hole (13). The negative electrode spring (21) is centered directly above the receiving hole (13), and the magnet (30) is embedded in the receiving hole (13).

7. A flashlight, comprising a battery back cover for a flashlight according to any one of claims 1-6, characterized in that, It further includes a flashlight body (40). A battery cavity (41) is formed at the rear end of the flashlight body (40), and an internal thread is provided at the opening position of the battery cavity (41). An external thread is provided on the side wall of the rear cover body (10). The rear cover body (10) is installed in the opening of the battery cavity (41) through threaded connection of the external thread and the internal thread.

8. A flashlight according to claim 7, characterized in that, The rear cover body (10) is flush with the rear end of the flashlight body (40), and a tool card interface (14) for facilitating the screwing of the rear cover body (10) is provided on the back of the rear cover body (10).

9. A flashlight according to claim 7, characterized in that, A telescopic adjusting sleeve (42) is movably connected to the front end of the flashlight body (40), and a lens (43) is installed inside the adjusting sleeve (42).

10. A flashlight according to claim 7, characterized in that, A charging interface (44) for charging is further installed on the flashlight body (40), and a rubber sealing cover (45) is provided at the position of the flashlight body (40) where the charging interface (44) is located.

Images