Lamp with dimming knob

Abstract

A lamp with a dimming knob, comprising a housing (100), a light-emitting assembly (200), and a knob-based dimming assembly (300), wherein the light-emitting assembly (200) is arranged in the housing (100); the knob-based dimming assembly (300) comprises a dimming knob (1), a substrate (2), a sliding block (3), and a conductive piece (4); the dimming knob (1) is arranged on the housing (100) and is capable of rotating relative to the housing (100); the sliding block (3) is arranged on the substrate (2) and is capable of sliding relative to the substrate (2) at a predetermined trajectory; the dimming knob (1) abuts against the surface of the sliding block (3); a plurality of contacts (5) are provided on the substrate (2); the conductive piece (4) is arranged on the sliding block (3); the contacts (5) are electrically connected to the light-emitting assembly (200); the dimming knob (1) is capable of driving the sliding block (3) to move by means of the rotation of the dimming knob, so that the conductive piece (4) is in communication with different contacts (5). Illumination parameter adjustment is performed by means of the dimming knob (1), so that the operation is more sensitive and convenient, existing dimming control structures are simplified, and the production cost is reduced.

Description

A knob dimming lamp Technical Field

[0001] The present invention relates to a lamp, in particular to a knob dimming lamp. Background Art

[0002] Currently, the common lamps with dial color adjustment on the market mainly use the common dial switches on the market for adjustment. For example, a PCB board is added under the light source lamp bead board, and the dial switch is placed on the PCB board. A rotating sleeve is provided on the surface of the shell, and the rotary sleeve is rotated to drive the dial switch to achieve the dial shift. Another solution is to set a dial piece on the surface of the shell, and use the slidable dial piece to drive the dial switch inside the shell to achieve the dial shift. Both of the above methods require the use of relatively expensive dial switches, and because a slidable rotating sleeve or dial piece is provided on the shell, the sealing of the lamp is poor, and water vapor can easily enter the interior of the lamp, affecting the life of the lamp.

[0003] Summary of the Invention

[0004] In order to solve the defects of the prior art, the present invention provides a knob dimming lamp, which can adjust lighting parameters through the dimming knob, making the control more sensitive and convenient, simplifying the existing dimming control structure, and reducing production costs.

[0005] In order to solve the above technical problems, an embodiment of the present invention provides a knob dimming lamp, comprising a housing, a light-emitting component and a knob dimming component, wherein the light-emitting component is arranged in the housing;

[0006] The knob dimming assembly includes a dimming knob, a substrate, a slider, and a conductive sheet. The dimming knob is arranged on the housing and can rotate relative to the housing.

[0007] The slider is provided on the substrate and can slide relative to the substrate along a predetermined track;

[0008] The dimming knob abuts against the surface of the slider;

[0009] The substrate is provided with a plurality of contacts, and the conductive sheet is provided on the slider;

[0010] The contact is electrically connected to the light emitting component;

[0011] The dimming knob can drive the slider to move by rotating itself, so that the conductive sheet is connected to different contact points.

[0012] As an improvement to the above solution, a card slot is provided on the base plate, and the slider includes a sliding body and a card buckle, and the card buckle extends into the card slot.

[0013] As an improvement to the above solution, a plurality of limiting grooves are provided on the groove wall of the clamping groove, and the sliding body is provided with a limiting rod, one end of the limiting rod is located in the limiting groove.

[0014] As an improvement of the above solution, the sliding body is further provided with a limit rod avoidance groove, the limit rod avoidance groove passes through the sliding body from top to bottom, and the limit rod is arranged in the limit rod avoidance groove.

[0015] As an improvement of the above solution, the slot is an arc-shaped slot, and the buckle includes an offset block and a claw, the side wall of the offset block abuts against the side wall of the slot; the claw is arranged at the bottom end of the offset block and is clamped on the bottom surface of the substrate.

[0016] As an improvement of the above-mentioned scheme, the buckle includes a first front buckle and a first rear buckle arranged in the same slot, the offset block of the first front buckle abuts against one side wall of the slot, and the offset block of the first rear buckle abuts against the other side wall of the slot.

[0017] As an improvement to the above scheme, there are two groups of card slots, including a first card slot and a second card slot, each extending along a concentric arc of different diameter; the buckle includes a second front buckle and a second rear buckle arranged in different card slots, the second front buckle is arranged in the first card slot, and the second rear buckle is arranged in the second card slot.

[0018] As an improvement of the above-mentioned scheme, the conductive sheet includes a spring fixing portion, a spring deforming portion and a spring contact portion, the spring fixing portion has a U-shaped structure, the spring deforming portion connects the spring fixing portion and the spring contact portion, the spring contact portion is symmetrically arranged on both sides of the spring fixing portion, and a spring contact point is provided at the bottom of the spring contact portion.

[0019] As an improvement of the above solution, a locking plate is provided on both sides of the spring fixing part, the locking plate is located in the locking plate accommodating hole, and the upper end of the locking plate is connected to the spring fixing part; the sliding body is provided with a conductive sheet mounting hole, and the spring fixing part extends into the conductive sheet mounting hole.

[0020] As an improvement to the above solution, the sliding body is provided with retaining grooves on both sides of the conductive sheet mounting hole, and the retaining plates are arranged in the retaining grooves.

[0021] As an improvement of the above-mentioned scheme, the sliding body is provided with a first abutting surface and a second abutting surface, both of which are used to abut against the upper surface of the substrate; the first abutting surface is provided on the side of the sliding body close to the contact point, and the second abutting surface is provided on the side of the sliding body away from the contact point, and the length of the first abutting surface is greater than the length of the second abutting surface.

[0022] As an improvement to the above solution, a tooth surface is provided on the sliding body, and a gear is provided on the dimming knob, and the gear is engaged with the tooth surface.

[0023] As an improvement to the above solution, a flexible friction layer is provided on the sliding body and / or the dimming knob, and the sliding body and / or the dimming knob abut against each other through the flexible friction layer.

[0024] As an improvement to the above-mentioned solution, a knob cover is provided on the outer shell, and a first limiting ring is provided at the end of the knob cover; a second limiting ring and a knob buckle are provided on the side of the dimming knob, and the second limiting ring is matched with the front end face of the first limiting ring, and the knob buckle is matched with the rear end face of the first limiting ring.

[0025] As an improvement to the above solution, a sealing groove is further provided on the side of the dimming knob, a sealing ring is provided in the sealing groove, and the sealing ring abuts against the inner wall of the knob sleeve.

[0026] As an improvement to the above solution, the front end surface of the first limiting ring is provided with a first conical surface, and the second limiting ring is provided with a second conical surface matching the first conical surface.

[0027] As an improvement to the above solution, the contacts include gear contacts and common contacts, and the gear contacts and common contacts are arranged on a moving track of the conductive sheet.

[0028] As an improvement of the above solution, the gear contacts are arranged on both sides of the common contact, and the conductive sheet has two spring contacts. During the movement of the conductive sheet, one spring contact is kept in contact with the common contact, and the other spring contact is kept in contact with one of the gear contacts.

[0029] As an improvement of the above solution, it further includes a lamp head and a lampshade, wherein the lamp head is arranged at the lower part of the shell, and the lampshade is arranged at the upper part of the shell.

[0030] As an improvement to the above solution, the substrate is made of aluminum alloy, and the light-emitting component is provided on the substrate.

[0031] As an improvement to the above solution, the light-emitting component includes a light source and a driving circuit, the contact is electrically connected to the driving circuit, and the driving circuit is electrically connected to the light source.

[0032] As an improvement of the above-mentioned scheme, the shell has a conical working part, the knob dimming component is located in the conical working part, the substrate is a circular flat plate, the lampshade includes a cover plate and a refraction mechanism, the substrate is opposite to the cover plate, the light-emitting component is located in the center of the substrate, and the refraction mechanism is arranged in the center of the cover plate, including a lens and / or a threaded lens.

[0033] As an improvement to the above solution, the shell is cylindrical, square or trapezoidal.

[0034] The implementation of the embodiments of the present invention has the following beneficial effects:

[0035] This solution uses a dimming knob to drive a slider on a substrate to slide along the substrate surface, connecting the conductive strips on the slider to different contact points, thereby adjusting lighting parameters such as color temperature and brightness. This solution simplifies existing dimming control structures and reduces production costs. Adjusting lighting parameters using the dimming knob provides more sensitive and convenient control. Compared to a sliding button design, the axially rotating dimming knob maintains a fixed position relative to the housing during adjustment, ensuring a high degree of sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] FIG1 is a schematic diagram of the external structure of a knob dimming lamp according to the present invention;

[0037] FIG2 is a cross-sectional view of a knob-dimming lamp according to the present invention;

[0038] FIG3 is a schematic structural diagram of a substrate and a knob dimming assembly of the present invention;

[0039] FIG4 is an enlarged view of portion B of FIG3 ;

[0040] FIG5 is a schematic diagram of the matching state of the conductive sheet and the contact of the present invention;

[0041] FIG6 is a schematic structural diagram of a contact of the present invention;

[0042] FIG7 is an enlarged view of portion A of FIG2 ;

[0043] FIG8 is a schematic diagram of the structure of a slider of a first embodiment of a knob-dimming lamp according to the present invention;

[0044] FIG9 is a schematic diagram of the slider structure of a second embodiment of a knob dimming lamp according to the present invention;

[0045] FIG10 is a schematic diagram of the structure of a slider of a third embodiment of a knob-dimming lamp according to the present invention. DETAILED DESCRIPTION

[0046] To make the objectives, technical solutions, and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings. It is hereby stated that any directional terms such as "up," "down," "left," "right," "front," "back," "inside," and "outside" that appear or will appear herein are based solely on the accompanying drawings and are not intended to limit the present invention.

[0047] As shown in FIG1 to FIG4 , a first embodiment of the present invention provides a knob dimming lamp, comprising a housing 100 , a light emitting assembly 200 and a knob dimming assembly 300 , wherein the light emitting assembly 200 is disposed in the housing 100 ;

[0048] The knob dimming component 300 includes a dimming knob 1, a substrate 2, a slider 3 and a conductive sheet 4. The dimming knob 1 is provided on the housing 100 and can rotate relative to the housing 100.

[0049] The slider 3 is provided on the substrate 2 and can slide relative to the substrate 2 along a predetermined track;

[0050] The dimming knob 1 abuts against the surface of the slider 3;

[0051] The substrate 2 is provided with a plurality of contacts 5, and the conductive sheet 4 is provided on the slider 3;

[0052] The contact 5 is electrically connected to the light emitting component 200;

[0053] The dimming knob 1 can drive the slider 3 to move by rotating itself, so that the conductive sheet 4 is connected to different contacts 5 .

[0054] This solution uses a dimming knob 1 to drive a slider 3 on a substrate 2 to slide along the surface of the substrate 2, allowing the conductive sheet 4 on the slider 3 to connect to different contacts 5, thereby adjusting lighting parameters such as color temperature and brightness. This solution simplifies existing dimming control structures and reduces production costs. Adjusting lighting parameters using the dimming knob 1 is more sensitive and convenient. Compared to a sliding button design, the axially rotating dimming knob 1 maintains a fixed position relative to the housing during adjustment, providing a high degree of sealing.

[0055] According to the first embodiment of the present invention, to limit the movement trajectory of the slider 3 relative to the substrate 2, a slot 21 is provided on the substrate 2. The slider 3 includes a sliding body 31 and a buckle 32, which extends into the slot 21. The buckle 32 is used to prevent the slider 3 from separating from the substrate 2. When driven, the slider 3 moves along the slot 21.

[0056] To ensure reliable connection between the conductive sheet 4 and the contact 5 and to ensure that the conductive sheet 4 remains in the position corresponding to the predetermined gear position, the slot wall of the locking slot 21 is provided with a plurality of limiting slots 22. The sliding body 31 is provided with a limiting rod 33, one end of which is located in the limiting slot 22. It should be noted that the limiting rod 33 has a certain degree of elasticity. When the slider 3 moves, the limiting rod 33 moves accordingly. During this process, one end of the limiting rod 33 disengages from the original limiting slot and enters the adjacent limiting slot. The limiting rod 33 can be a round rod, and the side walls 221 of the limiting slot 22 can also be configured as curved or inclined surfaces. When the limiting rod 33 begins to enter the limiting slot 22, even if the driving force disappears, the slider 3 can still reach the center of the limiting slot 22 under the elastic force of the limiting rod 33 along the curved or inclined side walls of the limiting slot 22. Each limiting slot 22 is positioned so that when the limiting rod 33 is centered, the slider 3 moves the conductive sheet 4 to a position where two or more contacts 5 are reliably conducting. This design eliminates the need for precise knob rotation; simply turning the knob to a rough position ensures the dimming knob 1 and slider 3 remain in their intended position, providing convenient operation and a refined feel.

[0057] Preferably, in order to ensure that the limiting rod 33 has sufficient space for movement and to maintain the elastic force required for normal operation during long-term use, the sliding body 31 is further provided with a limiting rod avoidance groove 311, which passes through the sliding body 31 from top to bottom, and the limiting rod 33 is disposed in the limiting rod avoidance groove 311.

[0058] As shown in FIG8 , preferably, the slot 21 is an arc-shaped slot, and the buckle 32 includes an offset block 321 and a claw 322. The side walls of the offset block 321 abut against the side walls of the slot 21; the claw 322 is provided at the bottom end of the offset block 321 and is clamped on the bottom surface of the substrate 2. The offset block 321 provides a position offset for the claw 322 when the buckle 32 is installed in the arc-shaped slot. The claw 322 is used to hook the substrate 2 to prevent the slider 3 from separating from the substrate 2. In addition, after installation, the side walls of the offset block 321 abut against the side walls of the slot 21, providing a horizontal limit for the slider 3, so that when the slider 3 is moved by force, it will move along the slot 21. The movement of the slider 3 is achieved by the cooperation of the buckle 32 and the slot 21. On the one hand, it ensures the smooth movement of the slider 3, and on the other hand, it simplifies the structure and assembly steps, saving costs.

[0059] The buckle 32 includes a first front buckle 32a and a first rear buckle 32b disposed in the same slot 21. The offset block of the first front buckle 32a abuts against one side wall of the slot 21, while the offset block of the first rear buckle 32b abuts against the other side wall of the slot 21. The first front buckle 32a and the first rear buckle 32b cooperate to securely position the slider 3 in the single slot 21, reducing the size and sliding friction of the slider 3. This also reduces the size of the dimming knob 1, facilitating its application in smaller lamps or those with compact interiors.

[0060] As shown in Figure 9, according to the second embodiment of the present invention, the difference from the first embodiment is that the card slots 21 are two groups, including a first card slot 21a and a second card slot 21b, each extending along a concentric arc of different diameters; the card buckle 32 includes a second front card buckle 32c and a second rear card buckle 32d provided in different card slots 21, the second front card buckle 32c is provided in the first card slot 21a, and the second rear card buckle 32d is provided in the second card slot 21b. This embodiment is provided with a first card slot 21a and a second card slot 21b, each extending along a concentric arc of different diameters, and the contact 5 is arranged between the first card slot 21a and the second card slot 21b, and the second front card buckle 32c cooperates with the first card slot 21a, and the second rear card buckle 32d cooperates with the second card slot 21b. The conductive sheet 4 is arranged between the two buckles, and downward pressure is applied to the conductive sheet 4 through the slider 3. The pulling force of the second front card buckle 32c and the second rear card buckle 32d is located on both sides of the downward pressure. The system is stably stressed and will not be excessively worn due to local uneven force during long-term use. The working reliability of the conductive sheet 4 and the contact 5 is improved, and the service life is extended.

[0061] As shown in Figures 4 and 5 , the conductive sheet 4 includes a spring-type fixing portion 41, a spring-type deforming portion 42, and a spring-type contact portion 43. The spring-type fixing portion 41 has a U-shaped structure, and the spring-type deforming portion 42 connects the spring-type fixing portion 41 and the spring-type contact portion 43. The spring-type contact portion 43 is symmetrically located on either side of the spring-type fixing portion 41, and a spring-type contact point 44 is provided at the bottom of the spring-type contact portion 43. The spring-type fixing portion 41 is provided with retaining plates 45 on either side. These retaining plates 45 are located in retaining plate receiving holes 46, and their upper ends are connected to the spring-type fixing portion 41. The sliding body 31 is provided with a conductive sheet mounting hole 312, into which the spring-type fixing portion 41 extends. The conductive sheet mounting hole 312 cooperates with the U-shaped spring-type fixing portion 41 to secure the conductive sheet 4, leaving space for heat dissipation at the top and bottom of the conductive sheet 4 and reducing the material used in the slider 3. The conductive sheet 4 can be a spring made of an alloy with copper as the main component to provide better conductive performance. The spring deformation portion 42 is formed by gradually extending downward from the end of the spring fixing portion 41 to the outside, providing constant pressure for the spring contact portion 43 to ensure that the spring contact portion 43 is in reliable contact with the corresponding contact 5.

[0062] Specifically, a spring contact 44 is provided at the bottom of the spring contact portion 43. When the spring moves to a predetermined position, it can contact the two contacts 5, thereby conducting the circuits corresponding to the two contacts 5 and realizing the corresponding control function.

[0063] Preferably, the sliding body 31 is provided with retaining grooves 313 on both sides of the conductive sheet mounting hole 312, and the retaining plates 45 are disposed in the retaining grooves 313. The retaining grooves 313 are recessed downward from the upper surface of the sliding body 31. When the conductive sheet 4 is installed in the conductive sheet mounting hole 312, the elastic sheet fixing portion 41 extends upward into the conductive sheet mounting hole 312 until the retaining plates 45 contact the wall of the conductive sheet mounting hole 312. The U-shaped elastic sheet fixing portion 41 has a certain elastic deformation capacity, so the retaining plates 45 can be smoothly installed in the conductive sheet mounting hole 312 until they reach the retaining grooves 313. The retaining plates 45 enter the retaining grooves 313 due to the rebound action of the elastic sheet fixing portion 41, thereby securing the conductive sheet 4 in the slider 3. This structure facilitates installation of the conductive sheet 4. Moreover, after the conductive sheet 4 is secured, its lower surface is uncovered or blocked, thereby maintaining efficient heat dissipation.

[0064] During use of this knob-dimming lamp, the smoothness of the slider 3's sliding is particularly important, as it affects the feel of the knob and the lamp's lifespan. The sliding body 31 is provided with a first abutting surface 314 and a second abutting surface 315, both of which are configured to abut against the upper surface of the substrate 2. The first abutting surface 314 is located on the side of the sliding body 31 closer to the contact 5, while the second abutting surface 315 is located on the side of the sliding body 31 farther from the contact 5. The length of the first abutting surface 314 is greater than the length of the second abutting surface 315. It should be noted that the first abutting surface 314, located on the side of the sliding body 31 closer to the contact 5, primarily ensures the stability of the slider 3, preventing it from tilting during sliding. This allows the spring contact 44 to maintain stable contact with the contact 5 on the substrate 2. The shorter second abutting surface 315 reduces friction generated by the second abutting surface 315 contacting the substrate 2, resulting in smoother sliding of the slider 3.

[0065] As shown in FIG7 , the sliding body 31 is preferably provided with a toothed surface 316, and the dimming knob 1 is provided with a gear 11, which meshes with the toothed surface 316. The meshing gear 11 and the toothed surface 316 transmit the power of the dimming knob 1 to the sliding body 31, ensuring synchronization between the movement of the slider 3 and the rotation of the dimming knob 1. A corresponding pointer pattern can be provided on the surface of the dimming knob 1 to facilitate the operator's understanding of the current gear position.

[0066] As shown in FIG10 , the third embodiment of the present invention differs from the other embodiments in that the sliding body 31 no longer has a toothed surface 316, and the dimming knob 1 no longer has a gear 11. Instead, the sliding body 31 and / or the dimming knob 1 are provided with a flexible friction layer 316, through which the sliding body 31 and / or the dimming knob 1 abut against each other. The flexible friction layer 316 can be made of a material such as silicone, which provides high friction and a certain degree of elasticity. The sliding body 31 and the dimming knob 1 abut against each other, and the flexible friction layer 316 at their connection transmits power, converting the rotational force of the dimming knob 1 into power to move the slider 3 along the slide groove. The flexible friction layer 316 transmits the adjustment power, providing a smooth and comfortable feel for the operator. In particular, when the limit rod 33 enters different limit grooves 22, it can cushion the recoil force when the limit rod 33 slides into the center of the limit groove 22, providing a more diverse and varied feel when the operator rotates the dimming knob 1.

[0067] As shown in Figure 7, the housing 100 is provided with a knob sleeve 6, the end of which is provided with a first retaining ring 61. A second retaining ring 12 and a knob buckle 13 are provided on the side of the dimming knob 1. The second retaining ring 12 is configured to cooperate with the front end surface of the first retaining ring 61, and the knob buckle 13 is configured to cooperate with the rear end surface of the first retaining ring 61. A sealing groove 14 is also provided on the side of the dimming knob 1, and a sealing ring 15 is provided in the sealing groove 14. The sealing ring 15 abuts against the inner wall of the knob sleeve 6. The sealing ring 15 ensures a tight seal between the dimming knob 1 and the rotating sleeve, making the lamp waterproof.

[0068] Preferably, the front end surface of the first limiting ring 61 is provided with a first conical surface 611, and the second limiting ring 12 is provided with a second conical surface 121 that matches the first conical surface 611. The first conical surface 611 and the second conical surface 121 cooperate with each other to limit the dimming knob 1 to a predetermined rotation axis and provide an automatic adjustment function.

[0069] As shown in FIG6 , according to a specific embodiment of the present invention, the contact 5 includes a gear contact 51 and a common contact 52, which are arranged on the active track of the conductive sheet 4. When a different gear is selected, the conductive sheet 4 connects the different gear contacts 51 to the common contact 52.

[0070] More preferably, the shift contacts 51 are located on both sides of the common contact 52, and the conductive sheet 4 has two spring contacts 44. During the movement of the conductive sheet 4, one spring contact 44 remains in contact with the common contact 52, while the other spring contact 44 remains in contact with one of the shift contacts 51. This arrangement can make the arrangement of the contacts 5 more compact and shorten the required length of the common contact 52.

[0071] As shown in FIG2 , according to a specific embodiment of the present invention, the knob-dimming lamp further includes a lamp holder 400 and a lampshade 500 . The lamp holder 400 is located at the lower portion of the housing 100 , and the lampshade 500 is located at the upper portion of the housing 100 . The substrate 2 can be a panel integrally formed with the housing, or a separate panel made of a different material, such as a PCB or an aluminum substrate. In this embodiment, the substrate 2 is made of aluminum alloy, and the light-emitting assembly 200 is disposed on the substrate 2. Integrating the substrate 2 required for the knob-dimming assembly 300 with the aluminum substrate 2 commonly used in lamps, which serves both heat dissipation and support functions, can greatly simplify the lamp's structure and improve its reliability. The aluminum substrate 2 is conductive. When using an aluminum substrate 2 as the base 2, to ensure that the contacts 5 and the conductive strips 4 do not short-circuit due to contact with the aluminum substrate 2, an insulating material can be first applied to the corresponding portions of the aluminum substrate 2, and then the contacts 5 can be disposed on the insulating material surface. The light-emitting assembly 200 includes a light source and a driver circuit. The contact 5 is electrically connected to the driver circuit, which is in turn electrically connected to the light source. The light source can be a single LED or an LED array composed of multiple LEDs; the driver circuit can be a conventional LED driver circuit. As needed, the light source can also be a conventional light source such as a fluorescent lamp, a halogen lamp, or a tungsten filament lamp. In this case, the driver circuit needs to be replaced with a driver circuit for the corresponding light source.

[0072] It should be noted that the knob dimming component 300 can be applied to different lamps, such as downlights, spotlights, and energy-saving lamps, so the housing 100 can be made into different shapes such as cylindrical, square, or trapezoidal as needed. This embodiment takes a PAR lamp as an example to describe the corresponding shell structure. The housing 100 has a conical working portion 101, and the knob dimming component 300 is located in the conical working portion 101. The substrate 2 is a circular flat plate. The lampshade 500 includes a cover plate 501 and a refraction mechanism. The substrate 2 is directly opposite to the cover plate 501. The light-emitting component 200 is located in the center of the substrate 2. The refraction mechanism is located in the center of the cover plate 501 and includes a lens 502 and a threaded lens 503 for producing a focusing effect.

[0073] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A knob dimming lamp, characterized in that: It includes a housing, a light-emitting component and a knob dimming component, wherein the light-emitting component is arranged in the housing; The knob dimming assembly includes a dimming knob, a substrate, a slider, and a conductive sheet. The dimming knob is arranged on the housing and can rotate relative to the housing. The slider is provided on the substrate and can slide relative to the substrate along a predetermined track; The dimming knob abuts against the surface of the slider; The substrate is provided with a plurality of contacts, and the conductive sheet is provided on the slider; The contact is electrically connected to the light emitting component; The dimming knob can drive the slider to move by rotating itself, so that the conductive sheet is connected to different contact points.

2. The knob dimming lamp according to claim 1, characterized in that: A card slot is provided on the base plate, and the slider comprises a sliding body and a card buckle, and the card buckle extends into the card slot.

3. The knob dimming lamp according to claim 2, characterized in that: The slot wall of the clamping slot is provided with a plurality of limiting slots, and the sliding body is provided with a limiting rod, one end of the limiting rod is located in the limiting slot.

4. The knob dimming lamp according to claim 3, characterized in that: The sliding body is further provided with a limit rod avoidance groove, the limit rod avoidance groove passes through the sliding body up and down, and the limit rod is arranged in the limit rod avoidance groove.

5. The knob dimming lamp according to any one of claims 2 to 4, characterized in that: The slot is an arc-shaped slot, and the buckle includes an offset block and a clamping claw. The side wall of the offset block abuts against the side wall of the slot; the clamping claw is arranged at the bottom end of the offset block and is clamped on the bottom surface of the substrate.

6. The knob dimming lamp according to claim 5, characterized in that: The buckle includes a first front buckle and a first rear buckle provided in the same slot, the offset block of the first front buckle abuts against one side wall of the slot, and the offset block of the first rear buckle abuts against the other side wall of the slot.

7. The knob dimming lamp according to claim 5, characterized in that: There are two groups of card slots, including a first card slot and a second card slot, each extending along a concentric arc of different diameters; the buckle includes a second front buckle and a second rear buckle arranged in different card slots, the second front buckle is arranged in the first card slot, and the second rear buckle is arranged in the second card slot.

8. The knob dimming lamp according to claim 2, characterized in that: The conductive sheet includes a spring fixing portion, a spring deforming portion and a spring contact portion. The spring fixing portion has a U-shaped structure. The spring deforming portion connects the spring fixing portion and the spring contact portion. The spring contact portion is symmetrically arranged on both sides of the spring fixing portion. A spring contact point is provided at the bottom of the spring contact portion.

9. The knob dimming lamp according to claim 8, characterized in that: A locking plate is provided on both sides of the spring fixing portion, the locking plate is located in the locking plate accommodating hole, and the upper end of the locking plate is connected to the spring fixing portion; the sliding body is provided with a conductive sheet mounting hole, and the spring fixing portion extends into the conductive sheet mounting hole.

10. The knob dimming lamp according to claim 9, characterized in that: The sliding body is provided with retaining grooves on both sides of the conductive sheet mounting hole, and the retaining plates are arranged in the retaining grooves.

11. The knob dimming lamp according to claim 2, characterized in that: The sliding body is provided with a first abutting surface and a second abutting surface, both of which are used to abut against the upper surface of the substrate; the first abutting surface is provided on the side of the sliding body close to the contact point, and the second abutting surface is provided on the side of the sliding body away from the contact point, and the length of the first abutting surface is greater than the length of the second abutting surface.

12. The knob dimming lamp according to any one of claims 2 to 4 and 11, characterized in that: The sliding body is provided with a tooth surface, the dimming knob is provided with a gear, and the gear is meshed with the tooth surface.

13. The knob dimming lamp according to any one of claims 2 to 4 and 11, characterized in that: A flexible friction layer is provided on the sliding body and / or the dimming knob, and the sliding body and / or the dimming knob abut against each other through the flexible friction layer.

14. The knob dimming lamp according to claim 1, wherein: The outer shell is provided with a knob sleeve, and the end of the knob sleeve is provided with a first limiting ring; the side of the dimming knob is provided with a second limiting ring and a knob buckle, the second limiting ring is matched with the front end surface of the first limiting ring, and the knob buckle is matched with the rear end surface of the first limiting ring.

15. The knob dimming lamp according to claim 14, characterized in that: A sealing groove is further provided on the side of the dimming knob, a sealing ring is provided in the sealing groove, and the sealing ring abuts against the inner wall of the knob sleeve.

16. The knob dimming lamp according to claim 14 or 15, characterized in that: The front end surface of the first limiting ring is provided with a first conical surface, and the second limiting ring is provided with a second conical surface matching the first conical surface.

17. The knob dimming lamp according to claim 8, characterized in that: The contacts include gear contacts and common contacts, and the gear contacts and common contacts are arranged on the active track of the conductive sheet.

18. The knob dimming lamp according to claim 17, characterized in that: The gear contacts are arranged on both sides of the common contact, and the conductive sheet has two spring contacts. During the movement of the conductive sheet, one spring contact is kept in contact with the common contact, and the other spring contact is kept in contact with one of the gear contacts.

19. The knob dimming lamp according to claim 1, characterized in that: It also includes a lamp head and a lampshade, wherein the lamp head is arranged at the lower part of the shell, and the lampshade is arranged at the upper part of the shell.

20. The knob dimming lamp according to claim 1, characterized in that: The substrate is made of aluminum alloy, and the light-emitting component is arranged on the substrate.

21. The knob dimming lamp according to claim 1, characterized in that: The light-emitting component includes a light source and a driving circuit. The contact is electrically connected to the driving circuit, and the driving circuit is electrically connected to the light source.

22. The knob dimming lamp according to claim 1, characterized in that: The housing has a conical working portion, the knob dimming component is located in the conical working portion, the substrate is a circular flat plate, the lampshade includes a cover plate and a refraction mechanism, the substrate is directly opposite to the cover plate, the light-emitting component is located in the center of the substrate, and the refraction mechanism is provided in the center of the cover plate and includes a lens and / or a threaded lens.

23. The knob dimming lamp according to claim 1, characterized in that: The shell is cylindrical, square or trapezoidal.

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