Head lamp capable of switching modes by moving push button

Abstract

The utility model relates to a head lamp capable of switching modes by moving a push button. The head lamp capable of switching the modes by moving the push button comprises a shell, a battery, a plurality of LED lamp beads, a lens, a PCB-A plate and a switch. The switch comprises a magnetic induction switch; the magnetic induction switch comprises N Hall elements which are installed on the PCB-A board and are arranged in sequence, a push button fixing seat fixed to the shell, and a push button assembly which is installed in a strip-shaped groove of the push button fixing seat and can move in the length direction of the strip-shaped groove. The push button assembly comprises a push button matched with the strip-shaped groove, and a magnet and a positioning bead which are respectively mounted in two mounting holes of the push button; N positioning holes which are arranged in sequence are formed in the shell; and when the positioning bead extends into any positioning hole, the magnetic field intensity generated by the magnet at the position of the corresponding Hall element is stronger than the magnetic field intensity at the positions of the other Hall elements. Switching of all modes can be directly achieved by pushing the push button to move, and compared with a control mode of a single key, mode switching is simpler and more convenient.

Description

Technical Field

[0001] This utility model relates to the field of lighting fixtures, specifically to a headlamp with a movable push button for switching modes. Background Technology

[0002] A headlamp is an outdoor lighting tool that typically contains one or more light sources. Headlamps are designed to free the user's hands, providing ample illumination for various activities such as night hiking, camping, fishing, hunting, and work. Traditional headlamps usually use a single-button control; however, because headlamps have multiple modes, such as low, medium, high, and strobe, some modes require multiple button presses to select, making operation cumbersome and failing to meet the need for convenience. Utility Model Content

[0003] In view of the above problems, this utility model is proposed to provide a headlamp with a movable push button for switching modes that overcomes or at least partially solves the above problems.

[0004] The headlamp with a movable push-button mode switching mechanism includes a housing, a battery, several LED beads, a lens, a PCB-A board, and a switch. The LED beads are mounted on the PCB-A board. The lens is mounted on the housing. The LED beads and the PCB-A board are arranged in an internal space surrounded by the housing and the lens. The switch includes a magnetic induction switch. The magnetic induction switch includes N Hall elements arranged sequentially on the PCB-A board, where N is greater than 1, a push-button mounting base fixed to the housing, and a push-button assembly mounted on the push-button mounting base and movable along the length of the strip groove. The push-button assembly includes a push button that mates with the strip groove, and magnets and positioning beads respectively mounted in two mounting holes of the push button. The housing has N positioning holes arranged sequentially. The positioning beads can extend into each positioning hole. When a positioning bead extends into any positioning hole, the magnetic field strength generated by the magnet at the location of the corresponding Hall element is stronger than the magnetic field strength at the locations of the other Hall elements.

[0005] The headlamp with the movable push button for switching modes also includes a heat dissipation component, which includes a metal heat sink. The metal heat sink has a protrusion that abuts against the back of the area where the LED chips are located on the PCB-A board. The protrusion includes a flat portion that is in close contact with the PCB-A board.

[0006] In one embodiment, the Hall elements are arranged sequentially at equal distances in a straight line, and the positioning holes are arranged sequentially at equal distances in a straight line, with the distance between two adjacent Hall elements being the same as the distance between two adjacent positioning holes.

[0007] In one embodiment, the number of protrusions is the same as the number of LED beads, and each protrusion abuts against the back side of the substrate area corresponding to the LED bead in the PCB-A board.

[0008] In one embodiment, the heat dissipation assembly further includes a thermally conductive silicone sheet, which is attached to the surface of the PCB-A board facing away from the metal heat sink. The thermally conductive silicone sheet has a plurality of through holes that respectively surround the substrate of each LED bead. The thermally conductive silicone sheet is in contact with the metal part of the housing.

[0009] In one embodiment, the switch further includes a push-button switch mounted on the PCB-A board, wherein the button cap of the push-button switch extends out of the housing through an opening formed in the housing.

[0010] In one embodiment, a mounting groove is formed on the outer side of the housing, and the push button fixing seat is engaged in the mounting groove.

[0011] This invention relates to a headlamp with a movable push button for switching modes. By pushing the push button, different modes can be switched directly, which is simpler and more convenient than the control method of a single button. Attached Figure Description

[0012] The accompanying drawings, which form part of the specification, are used to provide a further understanding of the embodiments of this application and illustrate the implementation methods of this application, together with the textual description, to explain the principles of this application. Obviously, the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0013] Figure 1 The diagram schematically shows a headlamp with a movable push button for switching modes according to one embodiment of the present invention.

[0014] Figure 2 schematically shown Figure 1 An exploded view of the headlight with a sliding push button for switching modes;

[0015] Figure 3 schematically shown Figure 1 The magnetic induction switch (without Hall element);

[0016] Figure 4 schematically shown Figure 1 Side view of the headlight with a sliding push button for switching modes;

[0017] Figure 5 schematically shown Figure 4 A cross-sectional view of the headlight with a sliding push button for switching modes;

[0018] Figure 6 schematically shown Figure 5 Enlarged view of part A in the image;

[0019] Figure 7 schematically shown Figure 1 Another side view of the headlights with the sliding push button for switching modes;

[0020] Figure 8 schematically shown Figure 7 A BB cross-sectional view of the headlight with a sliding push button for switching modes;

[0021] Figure 9 schematically shown Figure 8 Enlarged view of section B in the image;

[0022] Figure 10 schematically shown Figure 2 Metal heat sink in the middle.

[0023] Explanation of reference numerals in the attached diagram: 1. Housing; 2. Battery; 3. LED bead; 4. Lens; 5. PCB-A board; 6. Magnetic induction switch; 7. Hall element; 8. Push button mounting base; 9. Strip groove; 10. Push button assembly; 11. Push button; 12. Magnet; 13. Positioning bead; 14. Positioning hole; 15. Metal heat sink; 16. Protrusion; 17. Thermally conductive silicone sheet; 18. Push button switch; 19. Button cap. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below, with examples of the embodiments shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. Those skilled in the art can make various changes, modifications, substitutions, and alterations to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the claims and their equivalents.

[0025] The terms “center,” “longitudinal,” “transverse,” “length,” “upper,” “lower,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” “outer,” “axial,” “radial,” and “circumferential,” mentioned or possibly mentioned in the description of this utility model, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Additionally, the terms "comprising," "including," and any variations thereof are intended to cover non-exclusive inclusion.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] The following description, with reference to the accompanying drawings, describes a headlamp with a movable push-button mode switching according to an embodiment of the present invention.

[0029] See Figure 1 and Figure 2 A headlamp with a movable push-button switching mode according to an embodiment of the present invention includes a housing 1, a battery 2, several LED beads 3, a lens 4, a PCB-A board 5, a switch, and a headband (not shown in the figure). The LED beads 3 are mounted on the PCB-A board 5, as shown in the figure. Figure 3 As shown, it can be multiple LED beads 3 of different power. The lens 4 is mounted on the housing 1. Specifically, the lens 4 can be mounted on the housing 1 by snap-fit. The lens 4 can include a Fresnel lens, which can focus the light emitted by the LED bead 3 at its corresponding position. The LED beads 3 and PCB-A board 5 are arranged in the internal space surrounded by the housing 1 and the lens 4. To prevent rainwater from entering the headlamp, a sealing ring can be added to the gap between the housing 1 and the lens 4.

[0030] See now Figures 4 to 10 The switch includes a magnetic induction switch 6. The magnetic induction switch 6 includes N Hall effect elements 7 arranged sequentially on a PCB-A board 5, where N is greater than 1; a push button mounting base 8 fixed to a housing 1; and a push button assembly 10 mounted on a strip groove 9 of the push button mounting base 8 and movable along the length of the strip groove 9. Specifically, a mounting groove is formed on the outer side of the housing 1, and the push button mounting base 8 is engaged within the mounting groove.

[0031] The push button assembly 10 includes a push button 11 that mates with the strip groove 9, and magnets 12 and positioning beads 13 respectively installed in two mounting holes of the push button 11. The housing 1 has N positioning holes 14 arranged in sequence. The positioning beads 13 can extend into each positioning hole 14. When the positioning bead 13 extends into any positioning hole 14, the magnetic field strength generated by the magnet 12 at the position of the corresponding Hall element 7 is stronger than the magnetic field strength at the positions of the other Hall elements 7. The PCB-A board 5 selects the electrical signal of the Hall element 7 with the strongest magnetic field strength at its position as the switching signal to control the corresponding LED bead 3 to emit light.

[0032] In this embodiment, N=4. The Hall elements 7 are arranged sequentially at equal distances in a straight line, and the positioning holes 14 are also arranged sequentially at equal distances in a straight line. The distance between two adjacent Hall elements 7 is the same as the distance between two adjacent positioning holes 14, such as 4mm. When the positioning bead 13 is inserted into any positioning hole 14, the magnet 12 faces the corresponding Hall element 7, thereby making the magnetic field strength generated by the magnet 12 at the location of the corresponding Hall element 7 stronger than the magnetic field strength at the locations of the other Hall elements 7. Each Hall element 7 corresponds to different modes of the headlamp, for example, corresponding to... Figure 6 From the perspective of the Hall element 7, which can output electrical signals corresponding to modes such as dim brightness, medium brightness, high brightness, and strobe, from left to right, when the push button 11 is moved to make the positioning bead 13 extend into the corresponding positioning hole 14, the PCB-A board 5 controls one or more corresponding LED beads 3 to emit light.

[0033] See now Figure 2 and Figure 8 The headlamp with the movable push button for switching modes also includes a heat dissipation component, which includes a metal heat sink 15. The metal heat sink 15 has a protrusion 16 that abuts against the back of the area where the substrate of the LED beads 3 is located in the PCB-A board 5.

[0034] In this embodiment, the metal heat sink 15 only has protrusions 16 that abut against the back of the substrate of the higher-power LED beads 3 in the PCB-A board 5. Specifically, the number of LED beads 3 is 5, and the metal heat sink 15 only has protrusions 16 that abut against the back of the substrate of the four higher-power LED beads 3 in the PCB-A board 5, that is, the number of protrusions 16 is 4.

[0035] In another embodiment, the number of protrusions 16 is the same as the number of LED beads 3, and each protrusion 16 abuts against the back side of the substrate area of ​​the corresponding LED bead 3 in the PCB-A board 5.

[0036] The protrusion 16 includes a flat portion that is in close contact with the PCB-A board 5. The substrate of the LED bead 3 can be generally in the shape of a circular sheet, and the flat portion of the metal heat sink 15 can also be generally in the shape of a circular sheet. The outer contour of the flat portion of each protrusion 16 is the same size as the outer contour of the substrate of the corresponding LED bead 3.

[0037] The housing 1 can be made entirely or partially of a metal material, such as aluminum alloy or stainless steel. The metal heat sink 15 is in contact with the metal part of the housing 1 (i.e. the part made of metal material) so as to transfer the heat generated by the LED beads 3 during the light-emitting process to the outside of the housing 1.

[0038] In this embodiment, the heat dissipation assembly further includes a thermally conductive silicone sheet 17, which is attached to the surface of the PCB-A board 5 facing away from the metal heat sink 15. The thermally conductive silicone sheet 17 has a plurality of through holes that respectively surround the substrate of each LED bead 3. Specifically, the number of through holes is the same as the number of LED beads 3. The thermally conductive silicone sheet 17 is in contact with the metal part of the housing 1 to facilitate the transfer of heat generated by the PCB-A board 5 to the outside of the housing 1.

[0039] In this embodiment, the switch further includes a push-button switch 18 mounted on the PCB-A board 5. The button cap 19 of the push-button switch 18 extends out of the housing 1 through an opening formed in the housing 1. The button cap 19 is preferably made of an elastic material such as rubber or silicone, and its own elasticity seals the opening in the housing 1. This push-button switch 18 can serve as the master switch for all LED beads 3.

[0040] The headlamp in this embodiment uses a small-distance push-button mode switching magnetic induction switch. Pushing the button a small distance can directly switch between modes. For example, when the positioning holes are arranged in a straight line at equal distances and the distance between two adjacent positioning holes is 4mm, pushing the button 11 to move 4mm, 8mm, or 12mm can directly switch between modes (low brightness, medium brightness, high brightness, strobe, etc.), such as directly switching from low brightness to medium brightness, directly switching from low brightness to high brightness, directly switching from low brightness to strobe, etc. Compared with the control method of a single button, mode switching is simpler and more convenient.

Claims

1. A mobile push-button toggle mode headlamp, characterized by: The headlamp comprises a shell, a battery, a plurality of LED lamp beads, a lens, a PCB-A board, and a switch; the LED lamp beads are mounted on the PCB-A board; the lens is mounted on the shell, and the LED lamp beads and the PCB-A board are arranged in an internal space surrounded by the shell and the lens; the switch comprises a magnetic induction switch; the magnetic induction switch comprises N sequentially arranged Hall elements mounted on the PCB-A board, N is greater than 1, a push button fixing seat fixed to the shell, and a push button assembly mounted on a strip-shaped groove of the push button fixing seat and capable of moving along the length direction of the strip-shaped groove; the push button assembly comprises a push button matched with the strip-shaped groove, and a magnet and a positioning bead respectively mounted on two mounting holes of the push button; the shell is formed with N sequentially arranged positioning holes; the positioning bead can extend into each positioning hole, and when the positioning bead extends into any positioning hole, the magnetic field strength at the position of the corresponding Hall element generated by the magnet is stronger than the magnetic field strength at the positions of the remaining Hall elements. The headlamp further comprises a heat dissipation assembly, the heat dissipation assembly comprises a metal heat dissipation fin, the metal heat dissipation fin is formed with a protrusion abutting against the back of the area where the substrate of the LED lamp bead is located in the PCB-A board, and the protrusion comprises a flat surface part closely attached to the PCB-A board.

2. The mobile push-button toggle mode headlamp of claim 1, wherein: The Hall elements are sequentially and linearly arranged at equal distances, the positioning holes are sequentially and linearly arranged at equal distances, and the distance between adjacent two Hall elements is the same as the distance between adjacent two positioning holes.

3. The mobile push-button toggle mode headlamp of claim 2, wherein: The number of the protrusions is the same as the number of the LED lamp beads, and each protrusion abuts against the back of the area where the substrate of the corresponding LED lamp bead is located in the PCB-A board.

4. The mobile push-button toggle mode headlamp of claim 3, wherein: The heat dissipation assembly further comprises a heat-conducting silica gel sheet, the heat-conducting silica gel sheet is attached to the surface of the PCB-A board facing away from the metal heat dissipation fin, the heat-conducting silica gel sheet is formed with a plurality of through holes respectively surrounding the substrates of the LED lamp beads; and the heat-conducting silica gel sheet is in contact with the metal part of the shell.

5. The mobile push-button toggle mode headlamp of claim 4, wherein: The switch further comprises a button switch mounted on the PCB-A board, and the key cap of the button switch extends out of the shell through an opening formed in the shell.

6. The mobile push-button toggle mode headlamp of claim 5, wherein: The outer side of the shell is formed with a mounting groove, and the push button fixing seat is clamped in the mounting groove.

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