CN218468860U

CN218468860U - Flashlight tail cover switch structure and flashlight

Info

Publication number: CN218468860U
Application number: CN202221695547.4U
Authority: CN
Inventors: 张丹
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-07-04
Filing date: 2022-07-04
Publication date: 2023-02-10
Anticipated expiration: 2032-07-04

Abstract

The utility model belongs to the technical field of the lighting technology and specifically relates to a flashlight tail-hood switch structure and flashlight, including fixing switch circuit board and first lock ring in the tail-hood, a fixedly connected with switch on the switch circuit board in the tail-hood with the coaxial direction of switch has still set gradually depression bar and flexible press the cap, the top of depression bar is corresponding with the position of the trigger end of switch, still be provided with the pressure spring between depression bar and the switch circuit board, the outer wall of first lock ring has the external screw thread, first lock ring pass through the external screw thread with the internal thread spiro union of tail-hood is fixed, will flexible press the cap locking to be fixed the end of tail-hood. The utility model discloses arrange switch and relevant subassembly in the tail-hood, utilize the pressure spring to increase and trigger the stroke, effectively avoid the mistake to touch the emergence of the condition, provide better triggering through flexible pressing cap and feel and waterproof sealing performance.

Description

Flashlight tail cover switch structure and flashlight

Technical Field

The utility model relates to the technical field of lighting technology, especially a flashlight tail-hood switch structure and flashlight.

Background

The types of switches used in existing flashlights typically include both electronic and mechanical switches. The flashlight using the mechanical switch mode usually has the power supply output current passing through the switch, and the electric power of some high-brightness flashlights often exceeds 15 watts or even 30 watts, and the flashlight requires the battery output current to reach 10A or even higher because of the light source working voltage, the driving circuit efficiency, the flashlight assembly and the shell loss and the like. However, the current carrying capacity of the conventional mechanical switch is limited, and the use of the mechanical switch on the high-power flashlight increases the failure rate and limits the current input to the light source, so that the flashlight cannot reach the corresponding brightness. In a high-power flashlight, an electronic switch with small volume and low failure rate gradually replaces a mechanical switch to realize switch control, namely the electronic switch is responsible for controlling a driving circuit, and then the driving circuit is used for controlling the on-off and output power of a power supply loop to realize the functions of turning on or off the flashlight, regulating the brightness and the like. Although the current carrying capacity of the electronic switch is lower, the electronic switch of the flashlight does not carry the output current of a power supply, the interior of the electronic switch is mostly of a miniature spring plate structure, the pressing stroke is usually only 0.5-1.5mm, the triggering stroke is short, the operating force is only one thousandth or even lower than that of a mechanical switch, and the operating force is usually only about 2N, so that the electronic switch is relatively sensitive and easy to trigger mistakenly, and the flashlight is easy to light because of slight bumping touch on the switch. The feedback force is also very small, and especially when the flashlight is worn by gloves or operated in an emergency, the short pressing stroke and the slight feedback force can cause misoperation.

At present, the conventional solution is to weld the electronic switch on the switch circuit board directly or indirectly, and install the switch board inside the flashlight casing, which has higher requirement for waterproof of the switch position. In the utility model patent of bulletin number CN202118844U, the name is flashlight switch button structure, a technical scheme is disclosed, set up a through-hole directly over the switch on the casing, the through-hole top sets up a switch button, however its structure can cause the soldering tin of switch board to drop the trouble after pressing down for a long time, the waterproof circle of O type that is located switch position bottom produces the aversion or sealed lax after the spring appears tiredly, reduce waterproof sealing effect, lead to steam and dust to get into inside the flashlight casing. The pressure spring at the tail end of the T-shaped metal pressure rod needs to be installed from the interior of the flashlight shell, and the assembly and the maintenance are inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model overcomes above-mentioned shortcoming provides a control can be good, convenient assembling's flashlight tail-hood switch structure and flashlight.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a tail-hood switch structure of flashlight, its tail-hood of arranging the flashlight in, the inner wall of tail-hood has the internal thread, tail-hood switch structure of flashlight is including fixing switch circuit board and first lock ring in the tail-hood, a fixedly connected with switch on the switch circuit board in the tail-hood with the coaxial direction of switch has still set gradually depression bar and flexible press the cap, the top of depression bar is corresponding with the position of the trigger end of switch, still be provided with the pressure spring between depression bar and the switch circuit board, the outer wall of first lock ring has the external screw thread, first lock ring pass through the external screw thread with the internal thread spiro union of tail-hood is fixed, will flexible press the cap locking is fixed the end of tail-hood.

Furthermore, the tail cover locking device can further comprise a second locking ring, wherein the outer wall of the second locking ring is provided with an external thread which is in threaded connection and fixed with the internal thread of the inner wall of the tail cover, a cavity is formed in the second locking ring, and the pressure rod and the pressure spring are restrained in the cavity in the second locking ring.

The flashlight also comprises a third locking ring, wherein the inner wall of the flashlight tail cover is provided with a conductive step, the switch circuit board is arranged between the conductive step and the third locking ring, and the outer wall of the third locking ring is provided with external threads which are in threaded connection and fixed with the internal threads of the inner wall of the tail cover.

Furthermore, the third locking ring may further have a pressure spring supporting end surface extending toward the inner wall and an annular limiting blocking wall perpendicular to the pressure spring supporting end surface, the pressure lever has a radial supporting plane, and the pressure spring is disposed between the pressure spring supporting end surface of the third locking ring, the annular limiting blocking wall and the supporting plane of the pressure lever.

Further, an edge of the flexible pressing cap may be interposed between the first locking ring and the second locking ring.

A flashlight comprises a lamp holder, a flashlight body, a tail cover and a flashlight tail cover switch structure.

The utility model discloses arrange switch and relevant subassembly in the tailcap, utilize the pressure spring increases and triggers the stroke, effectively avoids the mistake to touch the emergence of condition, through flexible press cap provides better triggering and feels and sealing waterproof performance, each lock ring adopt with internal screw thread spiro union mode installation in the tailcap, maintenance and convenient assembling. In addition, the conductive step is fixed on the inner wall of the tail cover, and the switch circuit board is arranged between the conductive step and the third locking ring, so that the switch circuit board cannot be damaged due to external force vibration or impact, and the conductive connection of the switch circuit board is more reliable.

Drawings

Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention.

Detailed Description

As shown in fig. 1, which is a schematic structural diagram of a preferred embodiment of the present invention, the preferred embodiment is a flashlight, which includes a lamp cap, a barrel body, a tail cover 1, and a switch circuit board 2, a pressure bar 3, a flexible pressing cap 4, and a pressure spring 5 arranged in the tail cover 1, wherein an inner wall of the tail cover has a conductive step 11 and an internal thread 12.

Switch circuit board 2's one side fixedly connected with switch 21, another side fixedly connected with conductive spring 22 for switch on the inside battery of flashlight, preferably, switch 21 adopts electronic switch in the tail-hood 1 with the coaxial direction of switch 21 has still set gradually depression bar 3 and flexible pressing cap 4, the top of depression bar 3 is corresponding with the position of switch 21's trigger end.

The preferred embodiment further comprises a first locking ring 40, a second locking ring 30 and a third locking ring 20 which are sequentially arranged in the tail cover, wherein the outer wall of the third locking ring is provided with an external thread and is fixed with the internal thread 12 on the inner wall of the tail cover 1 in a threaded manner, the switch circuit board 2 is arranged between the conductive step 11 and the third locking ring 20, the switch circuit board 2 is tightly pressed on the conductive step 11 by screwing the third locking ring 20, and the conductive step 11 is fixed on the inner wall of the tail cover 1, so that the conduction between the switch circuit board and the conductive step is more stable, the switch circuit board cannot be damaged due to external force vibration or impact, the conductive connection of the switch circuit board is more reliable, the durability is better, and the maintenance and the assembly are more convenient.

The third locking ring 20 further has a pressure spring supporting end face 201 extending towards the inner wall and an annular limiting blocking wall 202 perpendicular to the pressure spring supporting end face, the pressure lever has a radial supporting plane 31, the pressure spring 5 is sleeved on the annular limiting blocking wall 202 and is placed in a space formed among the pressure spring supporting end face 201, the annular limiting blocking wall 202 and the supporting plane 31 of the pressure lever, so that damage of the pressure spring 5 to the switch circuit board 2 or the switch 21 caused by repeated operation is avoided, and the top ends of the switch 21 and the pressure lever 3 on the switch circuit board 2 are just placed in the center of the annular limiting blocking wall 202 of the third locking ring 20. The outer wall of the second locking ring 30 is also provided with an external thread which is screwed and fixed with the internal thread 12 on the inner wall of the tail cover, and a cavity is formed inside the second locking ring 30 to constrain the pressure lever 3 and the pressure spring 5 in the cavity inside the second locking ring 30. Because the inner cavities of the second locking ring 30 and the third locking ring 20 restrain the inserted compression bar 3, the compression bar 3 cannot deviate from the trigger end of the switch 21 under the action of the rebounding force of the compression spring 5, and the switch 21 is triggered more accurately.

The outer wall of the first locking ring 40 is also provided with external threads, the first locking ring is fixed with the internal threads 12 of the tail cover through the external threads in a threaded manner, and the edge of the flexible pressing cap 4 is placed between the first locking ring 40 and the second locking ring 30 to lock the flexible pressing cap 4 at the tail end of the tail cover 1. The flexible pressing cap 4 can be made of silica gel, and the elasticity of the flexible pressing cap is utilized to form sealing and waterproof effects on the inner part of the tail cover, so that the flexible pressing cap 4 is convenient to replace after aging or abrasion.

Based on the above structure, when applying pressure to the pressure lever 3 by pressing the flexible pressing cap 4, the pressure lever moves in the direction of the switch 21, the top end of the pressure lever 3 correspondingly touches the trigger end of the switch 21, and simultaneously compresses the pressure spring 5, when releasing the pressure, the pressure spring 5 rebounds, the top end of the pressure lever 3 is far away from the switch 21, and the process of sequentially pressing the trigger switch 21 is completed. In addition, in the process of pressing the pressing rod 3, the end surface of the annular limiting blocking wall 202 is abutted against the supporting plane 31 of the pressing rod 3, so that the limiting effect of movement of the pressing rod 3 is formed, and the problem that the pressing rod 3 excessively impacts the triggering end of the switch 21 to cause damage to the switch 21 under the action of external force is effectively solved. When pressure is released, the pressure lever 3 is limited in the second locking ring 30 under the action of resilience force of the pressure spring 5, so that the flexible pressing cap 4 is not impacted, and the strength and the sealing effect are not influenced.

The second locking ring 30 and the third locking ring 20 can be set in size reasonably according to the elasticity of the compression spring 5, and the pressing hand feeling is increased by reasonably setting the heights of the compression rod 3 and the compression spring 5, so that the stroke and the pressing force of the compression rod 3 contacting the switch 21 are increased, and the problems of short stroke and small pressing force of the electronic switch are effectively solved.

It is to be understood that, unless otherwise expressly stated or limited, the terms "connected" and "secured" are used broadly and encompass both fixed and removable connections, or combinations thereof; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. Furthermore, descriptions in the present application as to "first," "second," etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

The flashlight tail cover switch structure and the flashlight provided by the utility model are introduced in detail, and the principle and the implementation mode of the utility model are explained by applying a specific example, and the explanation of the above embodiment is only used for helping to understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.

Claims

1. The utility model provides a tail-hood switch structure of flashlight, its arranges in the tail-hood of flashlight, the inner wall of tail-hood has the internal thread, its characterized in that: flashlight tail-hood switch structure is including fixing switch circuit board and first lock ring in the tail-hood, a fixedly connected with switch on the switch circuit board in the tail-hood with the coaxial direction of switch has still set gradually depression bar and flexible press cap, the top of depression bar is corresponding with the position of the trigger end of switch, still be provided with the pressure spring between depression bar and the switch circuit board, the outer wall of first lock ring has the external screw thread, first lock ring pass through the external screw thread with the internal thread spiro union of tail-hood is fixed, will flexible press cap locking is fixed the end of tail-hood.

2. The flashlight tail cap switch structure of claim 1, wherein: the outer wall of the second locking ring is provided with external threads which are fixedly connected with the internal threads of the inner wall of the tail cover in a threaded manner, and a cavity is formed in the second locking ring and used for restraining the pressure lever and the pressure spring in the cavity in the second locking ring.

3. The flashlight tail cap switch structure of claim 1, wherein: the flashlight tail cover further comprises a third locking ring, the inner wall of the flashlight tail cover is provided with a conductive step, the switch circuit board is arranged between the conductive step and the third locking ring, and the outer wall of the third locking ring is provided with external threads and is fixedly connected with the internal threads of the inner wall of the tail cover in a threaded manner.

4. The flashlight tail cap switch structure of claim 3, wherein: the third locking ring is further provided with a pressure spring supporting end face extending towards the inner wall and an annular limiting blocking wall perpendicular to the pressure spring supporting end face, the pressure rod is provided with a radial supporting plane, and the pressure spring is arranged among the pressure spring supporting end face of the third locking ring, the annular limiting blocking wall and the supporting plane of the pressure rod.

5. The flashlight tail cap switch structure of claim 2, 3 or 4, wherein: the edge of the flexible pressing cap is arranged between the first locking ring and the second locking ring.

6. The utility model provides a flashlight, includes lamp holder, stack shell and tail-hood, its characterized in that: the flashlight tail cap switch structure of any one of claims 1 to 5.