Battery containing cartridge for headlamp and headlamp including the same
By employing a dual-rotation locking system in the portable headlamp, utilizing the design of hinges and locking rods, the issues of sealing and waterproofing of the battery housing are resolved, achieving a secure and easy-to-operate lock for the battery housing and improving the reliability of the headlamp.
Patent Information
- Application Number
- CN202422847441.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2023-11-21
- Filing Date
- 2024-11-21
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2034-11-21
AI Technical Summary
Existing battery housing locking systems for portable headlamps are inadequate in terms of waterproofing and ease of operation, especially when battery weight increases and usage conditions become harsh, making it difficult to achieve a complete seal and secure lock through simple double manual movements.
The locking system employs a dual-rotation mechanism, including a pivotal connection between the housing and the cover. Through the design of the hinge and locking lever, the U-shaped shape of the lever and the cam structure achieve force locking in the circular groove of the housing, ensuring that the cover is securely and tightly closed.
The battery housing is completely sealed and waterproof, reducing cap deformation and providing an easy-to-operate and highly secure locking system, thus improving the reliability of the portable headlamp.
Smart Images

Figure CN223785231U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of portable lights, and more specifically to a battery holder for rechargeable / non-rechargeable batteries, which has a robust and waterproof lock designed to provide a headlamp. Background Technology
[0002] Portable headlamps typically have a housing for rechargeable or non-rechargeable batteries, which may be inside or outside depending on whether the weight of the batteries needs to be transferred to the back of the headlamp.
[0003] In addition, these headlamps are designed to be used at any time and in all weather conditions, so their rechargeable or non-rechargeable batteries must be able to be stored in a robust and waterproof housing.
[0004] For this purpose, the housing is usually used with a cover, which can be locked onto the housing once the rechargeable / non-rechargeable battery is in place through various mechanisms and devices.
[0005] As battery weight increases and usage conditions become more demanding, it is important to improve the locking system of the housing so that it can accommodate rechargeable / non-rechargeable batteries in a completely waterproof manner.
[0006] In particular, it is desirable to be able to lock using two consecutive manual movements to ensure that the user can perfectly close and seal the housing.
[0007] This is the technical problem that this utility model aims to solve. Utility Model Content
[0008] One object of this invention is to provide a housing for rechargeable or non-rechargeable batteries, the housing including a lid that can be securely and tightly closed by a double manual movement. The battery housing provides storage space for an external rechargeable or non-rechargeable battery pack, thereby allowing for remote power supply to a headlamp.
[0009] Another object of this invention is to provide a headlamp housing comprising a cover that is locked by a dual rotation mechanism that ensures the cover is locked.
[0010] The third objective of this invention is to provide a headlamp housing that includes a fully sealed and waterproof housing for a rechargeable / non-rechargeable battery.
[0011] The fourth objective of this invention is to provide a portable lamp equipped with an easy-to-operate and highly robust locking / unlocking system.
[0012] This invention enables all these objectives to be achieved by providing a battery housing for a rechargeable / non-rechargeable battery in a headlamp, the battery housing comprising:
[0013] A housing having a front, a rear, a left side, and a right side, wherein the rear has a hinge;
[0014] The cover is rotatably movable relative to a first axis defined by the hinge, and the cover has two blind holes at its front portion that define a second axis of rotation for the locking lever to rotate relative to the cover.
[0015] The locking lever includes a left branch and a right branch.
[0016] The inner surface of the left branch includes a vertical first pin, and the inner surface of the right branch includes a second pin.
[0017] The first and second pins are configured to be inserted into the blind hole of the cover to complete the pivotal connection of the rod relative to the cover about the second axis of rotation;
[0018] The rod has a U-shaped shape and includes a cam on each of the two outer surfaces of the left and right branches, the cam having a generally circular shape centered on the second axis of rotation;
[0019] The side of the housing includes two circular grooves in the front portion, the two circular grooves being centered on a second axis of rotation and configured to receive the passage of the circular cams when the cover is in the closed position, the rod is in the extended position, and the rod is pivoted to insert the circular cams into their respective circular grooves, thereby ensuring force locking.
[0020] This method achieves a more evenly distributed locking force, resulting in less deformation of the rigid element used to seal the cap. This is a significant advantage compared to more conventional mechanisms based on a combination of a bottom rotating axis and a top clamp, which would require an excessively large cap size to prevent any deformation (banana effect) during locking.
[0021] In one particular embodiment, the housing includes two pivoting elements at the midpoint between the left and right sides to realize a third axis of rotation, about which the housing can rotate relative to a fixed support.
[0022] In one particular embodiment, the hinge is assembled via two blind holes that realize a first axis of rotation and are configured to receive two rods / pins of the cover.
[0023] Preferably, the lever is configured to perfectly match the shape and contour of the cover when the cover is in the final locked position. Attached Figure Description
[0024] Other features, objects, and advantages of this invention will become apparent after reading the specification and the following drawings, which are given only as non-limiting examples. In the drawings:
[0025] Figure 1a and Figure 1b The front and rear perspective views of the housing according to the present invention are shown.
[0026] Figure 2a and Figure 2b The front and rear perspective views of the cover of the housing according to the present invention are shown.
[0027] Figure 3a and Figure 3b The front and rear perspective views of the locking lever according to the present invention are shown.
[0028] Figure 4a This is a view showing a headlamp, which includes a housing, its cover, and a locking bar mounted on a support.
[0029] Figure 4b It is along Figure 4a The headlamp cross-section along the CAM-CAM axis.
[0030] Figure 5a It is along Figure 4a The cross section of the LEVER-LEVER axis.
[0031] Figure 5b It is along Figure 5a The cross section of the AX_LEVER-AX_LEVER axis.
[0032] Figure 6a , Figure 6b and Figure 6c Three exemplary cross-sections are shown using a locking lever to lock the cover.
[0033] Figures 7a-7f A perspective view showing the different stages of unlocking the lid is shown.
[0034] Figures 8a-8g The different stages of the user closing the waterproof housing are shown, highlighting the double rotation applied when locking the housing. Detailed Implementation
[0035] A general description will be given of the housing for accommodating rechargeable or non-rechargeable batteries that power the headlamp.
[0036] To reduce the load on the front of the user's head, the housing for the rechargeable / non-rechargeable battery is designed to be moved to the back of the user's head in order to power the headlamp electronics located at the front of the head.
[0037] However, it should be noted that this is only one specific implementation, and the housing of this invention should not be limited to headlamps with an external battery housing. Clearly, the innovative locking system described in detail can be implemented within a single-piece headlamp that includes both a lighting system and a rechargeable / non-rechargeable battery compartment.
[0038] More generally, the design of the housing and its locking system is completely independent of the LED lighting system and its associated electronics. Therefore, the housing to be described can be associated with any lighting system, from the simplest to the most complex, such as lighting systems incorporating REACTIVE LIGHTING technology sold by PETZL, or any lighting system.
[0039] In general, the rechargeable / non-rechargeable battery housing according to this utility model comprises three components, which are respectively located in... Figure 1a / Figure 1b , Figure 2a / Figure 2b and Figure 3a / Figure 3b As shown in the figure, that is:
[0040] - Casing 10 ( Figure 1a and Figure 1b );
[0041] - Housing cover 20 ( Figure 2a and Figure 2b );
[0042] - Locking lever 30 ( Figure 3a and Figure 3b ), which is specially designed to allow the locking cover 20.
[0043] The container according to this utility model includes a shell 10 in a generally parallelepiped shape, which respectively contains... Figure 1a and Figure 1b The front and rear perspective views are shown, and it is designed to house a casing for non-rechargeable or rechargeable batteries.
[0044] In this respect, the housing 10 includes a front 11, a rear 12, and two side surfaces, a left side 13 and a right side 14, which define the housing for a battery pack, which may be rechargeable or non-rechargeable, via an associated bottom. The rear 12 includes a hinge-type connection system 19 at its upper rear edge for connection with the cover 20, allowing the cover 20 to rotate relative to a first axis of rotation substantially parallel to the upper rear edge of the housing.
[0045] In one particular embodiment, the hinge is assembled to the housing via two blind holes that realize the first axis of rotation and are configured to receive two rods / pins of the cover 20, which will be described later.
[0046] like Figure 1a and Figure 1b As shown, the axis of the hinge 19, as well as the left side 13 and the right side 14, protrude relative to the upper edges of the front 11 and the rear 12.
[0047] Each of the left side 13 and the right side 14 includes a generally circular groove in the front portion of the housing, centered on a point defining the second axis of rotation, the function of which will be described later.
[0048] Finally, the housing includes two pivot elements 17 and 18 in the middle of the left and right sides, which generate a third axis of rotation 17-18 around which the housing can rotate relative to... Figure 1a and Figure 1b The fixed support member (not shown) rotates.
[0049] Now, refer to Figure 2a and Figure 2b Description of cover 20, which is configured to close in a waterproof manner. Figure 1a and Figure 1b The housing 10. Generally, the cover 20 includes a top side, a left side and a right side, and a rear side. In one particular embodiment, the rear side includes two blind holes 21 and 22 that share a common axis of the hinge 19 and are designed to accommodate a rotating rod (not described) to create a pivoting connection between the cover 20 and the housing 10.
[0050] Opposite to elements 21 and 22, the upper portions of the left and right sides of the cover 20 respectively include circular holes 23 and 24. Circular holes 23 and 24 realize the aforementioned second axis of rotation and are configured to accommodate two pins 33 and 34 located at both ends of the U-shaped rod 30, allowing it to rotate about the second axis of rotation located at the front of the cover 20. Figure 3a and Figure 3b As shown, the lever 30 is configured to perfectly match the shape and contour of the cover 20 when the cover 20 is in a horizontal plane, thereby completing the locking.
[0051] U-shaped rod 30 in Figure 3a and Figure 3b The diagram is shown in more detail and includes two branches 31 (left) and 32 (right). The inner surface of branch 31 has a first vertical pin 33 at its end, while branch 32 also has a second pin 34 at its end on its inner surface. The two pins 33 and 34 are intended to be inserted into blind holes 23 and 24 of the cover 20, respectively, to achieve a pivotal connection of the rod 30 relative to the cover 20 along a second axis of rotation.
[0052] The U-shaped rod 30 has semi-circular cams 35 and 36 on each of the two outer surfaces of branches 31 and 32, respectively, which have a generally circular shape around an axis shared with the second axis of rotation.
[0053] Accordingly, the sides 13 and 14 of the housing 10 include two circular recesses 15 and 16 in the front portion, which are configured to be in the closed position and the rod as... Figure 6a As shown, when it is in the vertical plane, and when the rod is lowered to the right to bring it into the horizontal plane ( Figure 6b and Figure 6c The semicircular cams 35 and 36 are respectively engaged, which causes the semicircular cams 35 / 36 to insert into their respective circular grooves 15, 16, and force locking is ensured by the cooperation between the semicircular cams 35 / 36 and the circular grooves 15 / 16.
[0054] Figure 4a This is a view showing a headlamp, which includes a housing, its cover, and a locking lever mounted on a support 100. Two cross-sectional views are defined therein, namely CAM-CAM and LEVER-LEVER.
[0055] Figure 4b It's the headlamp edge Figure 4a A cross-sectional view of the CAM-CAM axis. It clearly shows the engagement of cam 35 within the circular groove 15 on the side 13.
[0056] Figure 5a It is along Figure 4a The cross-sectional view of the LEVER-LEVER axis also highlights the AX_LEVER-AX_LEVER cross-sectional view, with details as follows: Figure 5a As shown.
[0057] Figure 6a , Figure 6b and Figure 6c Three exemplary cross-sections are shown of the cap being locked by a locking lever, which represents three different positions: open, partially open, and closed (locked). It can be clearly seen that the lowering lever allows the aforementioned assembly between the cams 35 / 36 and the circular recesses 15 / 16 to ensure a tight and effective closure of the cap. It should be particularly noted that perfect waterproofing can be achieved by one or more seals arranged on the cap, the details of which are not part of this invention.
[0058] Figures 7a-7f A perspective view showing the different stages of unlocking the lid is shown.
[0059] Figures 8a-8g The different stages of the user closing the waterproof housing are shown, highlighting the double rotation applied when locking the housing.
[0060] More specifically, Figure 8a The open casing is shown, which contains a set of three batteries.
[0061] exist Figure 8b In this configuration, the user begins to close the housing by pivoting the cover around hinge 19. The cover continues to rotate until its travel is complete, as... Figure 8c As shown.
[0062] Then, as Figure 8d and Figure 8e As shown, the user applies pressure to the cover while simultaneously initiating a pivot about the second axis of rotation, causing the circular cam 35 / 36 to enter its corresponding circular groove 15 / 16.
[0063] By lowering the lever to the end of its movement, such as Figure 8f and Figure 8g As shown, the user can securely and completely close the housing due to the combination of the internal seals (not shown) in the cover 20 and the pressure exerted by the engagement of the circular cams 35 / 36 in their respective circular grooves 15 / 16.
Claims
1. A battery holder for a headlamp, characterized in that, The battery housing includes: The housing (10) has a front (11), a rear (12), and a left and right side (13, 14). The rear (12) has a hinge (19) that allows the cover (20) to rotate relative to a first axis of rotation substantially parallel to the upper rear edge; Each of the left and right sides (13, 14) has a generally circular groove (15, 16) in the front portion of the housing, the groove being centered at a point defining the second axis of rotation; The cover (20) of the housing has a top side, a left side and a right side, and a rear side. The rear side has a pivot connection that allows the cover to rotate about the first axis of rotation; The cover (20) includes blind holes (23, 24) on its left and right sides, respectively. These blind holes realize the second axis of rotation and are configured to receive two pins (33, 34) located at both ends of a U-shaped locking lever (30) to allow the U-shaped locking lever to rotate about the second axis of rotation. The locking lever (30) includes a left branch (31) and a right branch (32). The inner surface of the left branch (31) includes a vertical first pin (33), and the inner surface of the right branch (32) includes a second pin (34). The first pin (33) and the second pin (34) are configured to be inserted into the blind holes (23, 24) of the cover (20) to complete the pivotal connection of the rod (30) relative to the cover (20) about the second axis of rotation; The locking lever (30) further includes cams (35, 36) on each of the two outer surfaces of the left branch (31) and the right branch (32), the cams having a generally circular shape centered on the second axis of rotation; The grooves (15, 16) are configured to receive the passage of the cams (35, 36) respectively when the cover is in the closed position, the rod is in the extended position, and the rod is pivoted to insert the cams (35, 36) into their respective grooves (15, 16), thereby ensuring force locking.
2. The battery housing according to claim 1, characterized in that, The housing includes two pivot elements (17, 18) at the midpoint between the left and right sides, which generate a third axis of rotation about which the housing can rotate relative to a fixed support.
3. The battery housing according to claim 2, characterized in that, The assembly of the hinge (19) is carried out through two blind holes that realize the first axis of rotation and are configured to receive two rods / pins of the cover (20).
4. The battery housing according to claim 3, characterized in that, The rod (30) is configured to perfectly match the shape and contour of the cover (20) when the cover (20) is in the final locked position.
5. The battery housing according to any one of the preceding claims, characterized in that, The battery housing provides space for an external rechargeable or non-rechargeable battery pack, thereby allowing for remote power supply to the headlamp.
6. The battery housing according to any one of claims 1 to 4, characterized in that, The housing includes a lighting system and a casing for one or more rechargeable or non-rechargeable batteries.
7. A headlamp, characterized in that, The headlamp includes a battery housing as claimed in any one of claims 1 to 4.