Dual in-line package (DIP) switch-controlled luminaire

Abstract

A dual in-line package (DIP) switch-controlled luminaire, comprising a housing (1), a light source assembly (2) and an adjustment assembly (10) connected to the light source assembly (2). The light source assembly (2) comprises a light source board (21) and light source elements (22). The adjustment assembly (10) comprises a DIP switch component (3) and a contact component (4), one end of the DIP switch component (3) being hinged to the light source board (21), the contact component (4) being connected to the DIP switch component (3), and the contact component (4) abutting against the light source board (21); connection contacts (23) are arranged on the light source board (21); the contact component (4) can be in contact with the connection contacts (23); the DIP switch component (3) can swing around the hinge position between the light source board (21) and the DIP switch component (3); when swinging, the DIP switch component (3) can drive the contact component (4) to slide between different connection contacts (23); the light source board (21) is provided with a slotted hole (212); the contact component (4) further comprises a contact piece (44), and the contact piece (44) is provided with a first movable contact (441) and a second movable contact (442). The DIP switch-controlled luminaire using the DIP switch component (3) and the contact component (4) has a small size and simple structure, thus saving space and facilitating miniaturization and integration of the luminaire.

Description

A dial lighting fixture Technical Field

[0001] The present invention relates to the technical field of lamps, and in particular to a dial lighting lamp. Background Art

[0002] Lamps are common everyday items. Among these lamps, those with dial-type dimming are often used to adjust parameters such as the color temperature and power of the light output to meet the varying needs of users. In existing dial-type dimming lamps, the adjustment device is a key component for achieving lamp adjustment. Typically, the adjustment device in a dimming lamp includes a dial button, a terminal block, and a terminal block. The dial button is a sliding mechanism that can be connected to the housing and slide. The dial button is connected to the terminal block, which protrudes toward the terminal block. The terminal block has multiple power terminals that protrude toward the terminal block. When the terminal blocks are connected to the power terminals, they can power the light source. When the dial button slides, it can move the terminal block, connecting it to different power terminals, thereby changing the current input to the light source and achieving a parameter adjustment effect. However, to accommodate the terminal block and the power terminals and ensure smooth movement of the terminal block, the adjustment device is often designed to be larger. Furthermore, the complex internal structure of the adjustment device also places high demands on layout design and assembly accuracy. This design not only increases the difficulty of production and assembly, but also limits the development of lamps in terms of miniaturization and integration.

[0003] Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a dial lighting fixture which is small in size and simple in structure, saves space, and is conducive to miniaturization and integration of the lighting fixture.

[0005] In order to solve the above technical problems, the present invention provides a dial lighting fixture, including a shell, a light source assembly arranged in the shell, and an adjustment assembly connected to the light source assembly, the shell includes a shell, the light source assembly includes a light source board and a light source part arranged on the light source board, and the light source board is connected to the shell.

[0006] The adjustment assembly includes a dial piece and a contact piece, one end of the dial piece is hinged to the light source board, the contact piece is connected to the dial piece, the contact piece abuts against the light source board, a connection contact is provided on the light source board, the contact piece can contact the connection contact, the dial piece can swing around the hinge between the light source board and the dial piece, and when the dial piece swings, it can drive the contact piece to slide between different connection contacts.

[0007] As an improvement to the above solution, the contact piece is a spring piece, and the contact piece is connected to the dial piece via a fastener, or the contact piece is plugged into the dial piece.

[0008] As an improvement to the above solution, the contact member is provided with a sliding contact, and the sliding contact can be in contact with the connecting contact.

[0009] As an improvement to the above solution, the number of the sliding contacts is two, and the two sliding contacts are respectively arranged on both sides of the fastener, or the sliding contacts are both arranged on the same side of the fastener.

[0010] As an improvement to the above solution, a connecting hole is provided in the dial member, and the contact member is plugged into the connecting hole.

[0011] As an improvement to the above solution, the number of the sliding contacts is two, and the two sliding contacts are arranged on the same side of the connecting hole.

[0012] As an improvement of the above-mentioned scheme, a hinge portion is provided at one end of the dial member, a paddle portion is provided at the other end of the dial member, a hinge hole is provided on the light source board, the hinge portion can be inserted into the hinge hole, a locking protrusion is provided at the end of the hinge portion, the locking protrusion protrudes from the side wall of the hinge portion and can abut against the light source board, the paddle portion can swing around the hinge hole, and the paddle portion protrudes toward the outside of the shell.

[0013] As an improvement of the above solution, the dial member further includes a first connecting plate and a connecting portion, the first connecting plate is connected between the hinge portion and the dial portion, the connecting portion protrudes from the first connecting plate, and the contact member is connected to the connecting portion.

[0014] As an improvement of the above-mentioned solution, an adjustment hole is provided on the side wall of the shell, the length direction of the adjustment hole is parallel to the surface of the light source board, and the paddle portion passes through the adjustment hole and protrudes from the outer side wall of the shell; a sliding hole is provided on the light source board, the length direction of the sliding hole is parallel to the length direction of the adjustment hole, and the connecting portion protrudes from the sliding hole and can move in the sliding hole.

[0015] As an improvement of the above-mentioned solution, the inner side wall of the sliding hole is provided with a plurality of limiting notches, the limiting notches are recessed toward the inner side of the sliding hole, the edges of the limiting notches are arc-shaped, and the plurality of limiting notches are distributed along the length direction of the sliding hole and are interconnected to form a wave shape. The side of the connecting part is provided with a limiting protrusion, the shape of the limiting protrusion corresponds to the shape of the limiting notch, and the limiting protrusion can be buckled into the limiting notch.

[0016] As an improvement of the above-mentioned solution, the dial member also includes a guide rod, which is arranged at one end of the dial portion located inside the shell. The shape of the guide rod corresponds to the shape of the inner wall of the shell. The side of the guide rod abuts against the inner wall of the shell, and the guide rod can slide along the inner wall of the shell.

[0017] As an improvement of the above solution, the contact member includes a second connecting plate and a limiting plate, the limiting plates are provided on both sides of the second connecting plate and protrude from the second connecting plate, and the connecting portion can be inserted between the two limiting plates.

[0018] As an improvement to the above-mentioned scheme, the contact piece also includes a connecting piece and a contact piece, the second connecting plate is bent and connected to the connecting piece, the connecting piece is bent and connected to the contact piece, the contact piece is provided with a first moving contact and a second moving contact, and the connecting contact includes a first fixed contact and a second fixed contact; when the first moving contact is in contact with the first fixed contact, the second moving contact is connected to the second fixed contact; when the first moving contact is in contact with the second fixed contact, the second moving contact is connected to the first fixed contact.

[0019] As an improvement to the above-mentioned solution, the first fixed contact is arranged on a side of the sliding hole close to the hinge hole, and the second fixed contact is arranged on a side of the sliding hole away from the hinge hole; the first moving contact and the second moving contact are respectively arranged at two ends of the second connecting plate, the first moving contact can contact with the first fixed contact, and the second moving contact can contact with the second fixed contact.

[0020] As an improvement to the above solution, the first fixed contact and the second fixed contact are distributed on the same side of the sliding hole, and the first movable contact and the second movable contact are respectively provided on both sides of the same end of the second connecting plate.

[0021] As an improvement of the above solution, a connecting hole is provided on the connecting portion, and the contact piece further includes a plug-in portion. The second connecting plate is bent and connected to the plug-in portion, and the plug-in portion can be inserted into the connecting hole.

[0022] As an improvement of the above-mentioned solution, a limiting plate is provided on both sides of the plug-in part, one end of the limiting plate is connected to the plug-in part, and the other end of the limiting plate is extended toward the second connecting plate and inclined toward the outside of the plug-in part. A slope is provided in the opening at one end of the connecting hole, and the inclination direction of the slope is the same as the inclination direction of the limiting plate. One end of the limiting plate can abut against the end of the connecting part away from the slope.

[0023] As an improvement of the above solution, the contact piece further includes a fixing portion, which is arranged between the second connecting plate and the plug-in portion. A side portion of the fixing portion is provided with a limiting boss, which protrudes outward and can abut against the connecting hole.

[0024] The implementation of the present invention has the following beneficial effects:

[0025] The dial lighting fixture of the present invention is provided with a light source assembly and an adjustment assembly connected to the light source assembly, the light source assembly comprising a light source board and a light source part arranged on the light source board, the light source part emitting light outward, and in order to achieve dimming, the adjustment assembly comprises a dial part and a contact part, one end of the dial part is hinged to the light source board, and the dial part can swing around the hinge between the light source board and the dial part. Since the contact part is connected to the dial part and the contact part abuts against the light source board, the dial part can drive the contact part to move when it swings, and a connecting contact is provided on the light source board, the connecting contact is connected to an external power supply device, and different connecting contacts can connect power supply circuits of different gears. When the contact part moves, it can slide between different connecting contacts to achieve switching of the connecting contacts, thereby switching the power supply gear to achieve the effect of adjusting the light output parameters. The dial lighting fixture of the present invention realizes dimming by using a dial piece to switch the connection between the contact piece and the connection contact. Compared with the traditional connection between the terminal and the terminal block, it has the advantages of small size, small space occupation and simple structure, so it is conducive to saving space and realizing the miniaturization and integration of the lamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] FIG1 is a structural diagram of a first embodiment of a dial lighting fixture of the present invention;

[0027] FIG2 is a partial enlarged view of A in FIG1 ;

[0028] FIG3 is a schematic diagram of a partial structure of a first embodiment of an adjustment assembly of the present invention;

[0029] FIG4 is a structural diagram of a second embodiment of a dial lighting fixture of the present invention;

[0030] FIG5 is a partial enlarged view of A in FIG4 ;

[0031] FIG6 is a schematic diagram of a partial structure of a second embodiment of an adjustment assembly of the present invention;

[0032] 7 is a schematic structural diagram of a third embodiment of a dial lighting fixture of the present invention;

[0033] FIG8 is a partial enlarged view of A in FIG7;

[0034] FIG9 is a schematic diagram of a partial structure of a third embodiment of an adjustment assembly of the present invention;

[0035] FIG10 is a partial cross-sectional structural diagram of a third embodiment of a dial lighting fixture of the present invention. DETAILED DESCRIPTION

[0036] 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.

[0037] An embodiment of the present invention discloses a dial lighting fixture, comprising a housing 1, a light source assembly 2 disposed within the housing 1, and an adjustment assembly 10 connected to the light source assembly 2. The housing 1 comprises a lampshade 11 and a shell 12. The housing 1 wraps and protects the light source assembly 2. The light source assembly 2 comprises a light source board 21 and a light source component 22 disposed on the light source board 21. The light source board 21 fixes the light source board 21 and realizes electrical connection of the light source component 22. The light source board 21 is connected to the shell 12. The lampshade 11 scatters light and protects the light source assembly 2.

[0038] In order to adjust the light output parameters of the light source 22, the adjustment component 10 includes a dial member 3 and a contact member 4, one end of the dial member 3 is hinged to the light source board 21, one end of the dial member 3 can be rotated relative to the light source board 21, and the other end of the dial member 3 can swing relative to the light source board 21 and the housing 12, the contact member 4 is connected to the dial member 3, and the dial member 3 can drive the contact member 4 to move when swinging, and the contact member 4 abuts against the light source board 21, and the light source board 21 is provided with a connection contact 23, and the contact member 4 can It is in contact with the connecting contact 23, and there are multiple connecting contacts 23, which are respectively connected to different power supply circuits. When the contact member 4 is connected to the connecting contact 23, the light source member 22 will be connected to different power supply circuits, and the gears between different power supply circuits are different. The dial member 3 can swing around the hinge between the light source board 21 and the dial member 3. When the dial member 3 swings, it can drive the contact member 4 to slide between different connecting contacts 23, so that the light source member 22 is connected to different power supply circuits to switch the gear of the power supply current, and then adjust the parameters of the light output.

[0039] The beneficial effects of the embodiments of the present invention are as follows:

[0040] The embodiment of the present invention is provided with a dial lighting fixture having a light source assembly 2 and an adjustment assembly 10 connected to the light source assembly 2. The light source assembly 2 includes a light source board 21 and a light source member 22 provided on the light source board 21. The light source member 22 emits light outward. In order to achieve dimming, the adjustment assembly 10 includes a dial member 3 and a contact member 4. One end of the dial member 3 is hinged to the light source board 21. The dial member 3 can swing around the hinge between the light source board 21 and the dial member 3. Since the contact member 4 is connected to the The dial member 3 is on the dial member 3, and the contact member 4 is in contact with the light source board 21. When the dial member 3 swings, it can drive the contact member 4 to move, and the light source board 21 is provided with a connection contact 23, which is connected to an external power supply device. Different connection contacts 23 can connect power supply circuits of different gears. When the contact member 4 moves, it can slide between different connection contacts 23 to achieve the switching of the connection contacts 23, thereby switching the power supply gear to achieve the effect of adjusting the light output parameters. The dial lighting fixture of the present invention achieves dimming by using the dial member 3 to switch the connection between the contact member 4 and the connection contact 23. Compared with the connection of the traditional terminal and the terminal block, it has the advantages of small size, small space occupation, and simple structure. Therefore, it is conducive to saving space and realizing the miniaturization and integration of the lamp.

[0041] In this embodiment of the present invention, the contact member 4 is a spring element. The spring element has both deformation and recovery capabilities. It can deform and then return to its original shape after being subjected to a certain degree of external force. Furthermore, to facilitate electrical conduction, the spring element is a metal spring element. Using a spring element as the contact member 4 simplifies the overall structure, saving installation space and usable space. Furthermore, it facilitates its ability to utilize its recovery capability to establish continuous and stable contact with the connection contacts 23 while facilitating its ability to utilize its deformation capability to switch between different connection contacts 23.

[0042] In different embodiments, the contact member 4 can be connected to the dial member 3 via a fastener 5. The fastener 5 can be a screw, bolt, latch, nail, or other parts, or can be connected to the dial member 3 by plugging. The contact member 4 is provided with sliding contacts (441, 442). The sliding contacts (441, 442) can contact the connection contacts 23. The contact member 4 as a whole can conduct electricity. Therefore, by sliding the sliding contacts (441, 442) between different connection contacts 23, different power supply circuits can be switched.

[0043] When the contact member 4 is fixed to the dial member 3 by the fastener 5, the number of the sliding contacts (441, 442) is two, and the two sliding contacts (441, 442) are respectively arranged on both sides of the fastener 5, or the sliding contacts (441, 442) are both arranged on the same side of the fastener 5. The two sliding contacts (441, 442) are respectively arranged on both sides or on the same side of the fastener 5, which can fully utilize the space on the surface of the light source panel and achieve the effect of saving space.

[0044] When the contact member 4 is plugged into the dial member 3, a connection hole 342 is provided in the dial member 3. During installation, the contact member 4 is plugged into the connection hole 342, thereby achieving a simple structure and convenient installation. The number of the sliding contacts (441, 442) is two, and the two sliding contacts (441, 442) are located on the same side of the connection hole 342.

[0045] Specifically, Figures 1 to 3 disclose a first embodiment of the present invention. In the first embodiment, a hinge portion 31 is provided at one end of the dial member 3. The hinge portion 31 is cylindrical, and a paddle portion 32 is provided at the other end of the dial member 3. A hinge hole 211 is provided on the light source board 21. The hinge portion 31 can be inserted into the hinge hole 211. The hinge hole 211 is a circular hole. The hinge portion 31 can rotate relative to the hinge hole 211, and the paddle portion 32 can swing around the hinge hole 211. A locking protrusion 311 is provided at the end of the hinge portion 31. The locking protrusion 311 protrudes from the side wall of the hinge portion 31 and can abut against the light source board 21. The locking protrusion 311 can provide a vertical limit for the connection between the hinge portion 31 and the hinge hole 211. The paddle portion 32 protrudes toward the outside of the housing 12 to facilitate operation of the paddle portion 32. When in use, by pushing the paddle portion 32 , the dial member 3 can be swung around the hinge portion 31 to drive the contact member 4 .

[0046] Referring to Figure 2, the dial member 3 also includes a first connecting plate 33 and a connecting portion 34. The first connecting plate 33 is connected between the hinge portion 31 and the paddle portion 32. The connecting portion 34 protrudes from the first connecting plate 33 and passes through the light source board 21. When the dial member 3 is pushed, the connecting portion 34 will move relative to the light source board 21. The contact member 4 is connected to the connecting portion 34 and can move with the connecting portion 34.

[0047] Referring to Figure 3, the side wall of the shell 12 is provided with an adjustment hole 121, and the adjustment hole 121 is a long hole. The length direction of the adjustment hole 121 is parallel to the surface of the light source board 21, and the paddle portion 32 passes through the adjustment hole 121 and protrudes from the outer wall of the shell 12. In this way, when adjusting, the paddle portion 32 is pried, and the paddle portion 32 will move in the adjustment hole 121. Since the length direction of the adjustment hole 121 is parallel to the surface of the light source board 21, the moving direction of the paddle portion 32 and the connecting portion 34 will be parallel to the surface of the light source board 21. The light source board 21 is provided with a sliding hole 212, the length of which is parallel to the length of the adjustment hole 121. That is, the projection of the extension trajectory of the sliding hole 212 on the plane where the adjustment hole 121 is located does not intersect with the extension trajectory of the adjustment hole 121. The sliding hole 212 and the adjustment hole 121 are both parallel to the surface of the light source board 21. The connecting portion 34 protrudes from the sliding hole 212 and can move within the sliding hole 212. As a result, the connecting portion 34 can maximize the surface space of the light source board 21 for movement without occupying additional movement space, thereby reducing the overall volume occupied by the adjustment assembly 10.

[0048] Referring to Figure 3, in order to limit the adjusted gear position and improve the operational feel of the adjustment, the inner side wall of the sliding hole 212 is provided with a plurality of limiting notches 213, and the limiting notches 213 are recessed toward the inner side of the sliding hole 212, and the edge of the limiting notch 213 is arc-shaped. The plurality of limiting notches 213 are distributed along the length direction of the sliding hole 212 and are connected to each other to form a wave shape. Each limiting notch 213 corresponds to the position of the connecting portion 34 when it moves to each gear position. A limiting protrusion 341 is provided on the side of the connecting portion 34, and the shape of the limiting protrusion 341 corresponds to the shape of the limiting notch 213. Every time a gear position is moved, the limiting protrusion 341 can be buckled into the limiting notch 213 of the corresponding gear position. After the user uses the dial member 3 to switch a gear, the limiting protrusion 341 can be buckled into the limiting notch 213 corresponding to the gear, which not only limits the limiting protrusion 341 to prevent the connecting part 34 from moving too much or too little to cause a short circuit or poor contact, but also provides vibration feedback and sound feedback after the user successfully switches the gear, so as to improve the feel of use and thus enhance the user experience.

[0049] Referring to FIG1 , in order to guide the movement of the dial member 3 and avoid jamming and tripping, the dial member 3 further includes a guide rod 35 . The guide rod 35 is provided at one end of the paddle portion 32 located within the housing 12 . The shape of the guide rod 35 corresponds to the shape of the inner sidewall of the housing 12 , so that the side of the guide rod 35 can abut against the inner sidewall of the housing 12 . When the dial member 3 is toggled to move the contact member 4 , the guide rod 35 can slide along the inner sidewall of the housing 12 . The interaction between the guide rod 35 and the housing 12 limits the movement trajectory of the dial member 3 , so that the dial member 3 can only move along the inner sidewall of the housing 12 . Specifically, the movement direction of the dial member 3 is horizontal, and the inner sidewall of the housing 12 is an arcuate surface. The dial member 3 can swing horizontally around the central axis of the housing 12 , and the guide rod 35 ensures the swing height and direction of the dial member 3 .

[0050] Referring to FIG3 , the contact member 4 includes a second connecting plate 41 and a limiting plate 42. The limiting plates 42 are provided on both sides of the second connecting plate 41 and protrude from the second connecting plate 41. In the first embodiment, the second connecting plate 41 is fixed to the connecting portion 34 via fasteners 5 such as screws. During installation, the second connecting plate 41 is first fixed to the connecting portion 34 via fasteners 5 such as screws. At the same time, the connecting portion 34 can be inserted between the two limiting plates 42. The fasteners 5 limit the contact member 4 in the vertical direction. The cooperation between the limiting plates 42 and the connecting portion 34 limits the contact member 4 in the horizontal direction, allowing the contact member 4 to stably follow the movement of the connecting portion 34. The angular deviation generated by the swinging of the connecting portion 34 is also transmitted to the contact member 4.

[0051] Referring to Figure 2, the contact member 4 also includes a connecting piece 43 and a contact piece 44. The second connecting plate 41 is bent and connected to the connecting piece 43, and the connecting piece 43 is bent and connected to the contact piece 44. Through the mutual bending connection, there is a certain elasticity between the second connecting plate 41 and the contact piece 44, which is conducive to generating a pre-tightening force between the contact piece 44 and the connecting contact 23, and also facilitates the contact piece 44 to release the current connecting contact 23 and move to the next connecting contact 23. Specifically, the sliding contacts (441, 442) are arranged on the contact piece 44, and the sliding contacts (441, 442) include a first moving contact 441 and a second moving contact 442, and the first moving contact 441 and the second moving contact 442 are electrically conductive to each other. The connecting contact 23 includes a first fixed contact 231 and a second fixed contact 232, and the first fixed contact 231 and the second fixed contact 232 are isolated from each other. The first fixed contact 231 and the second fixed contact 232 are connected to the electrical circuit of the same gear, and the first fixed contact 231 and the second fixed contact 232 constitute a normally open switch of the electrical circuit. The first moving contact 441 and the second moving contact 442 can respectively contact the first fixed contact 231 and the second fixed contact 232, so that the normally open switch is closed, forming a power-on circuit to power the light source 22. The number of the first fixed contacts 231 and the number of the second fixed contacts 232 are not necessarily equal. By reasonably setting the distance between the first movable contact 441 and the second movable contact 442, when the first movable contact 441 is in contact with the first fixed contact 231, the second movable contact 442 is connected to the second fixed contact 232, and when the first movable contact 441 is in contact with the second fixed contact 232, the second movable contact 442 is connected to the first fixed contact 231.

[0052] 3 , in the first embodiment, the number of the first fixed contact 231 is one, and the number of the second fixed contact 232 is multiple. The first fixed contact 231 is arranged on the side of the sliding hole 212 close to the hinge hole 211, and the second fixed contact 232 is arranged on the side of the sliding hole 212 away from the hinge hole 211. The length of the first fixed contact 231 is greater than the length of each of the second fixed contacts 232 and less than the total length of all the second fixed contacts 232. The first fixed contact 231 is arranged on the side of the sliding hole 212 close to the hinge hole 211, which can facilitate the first movable contact 441 to continuously contact the first fixed contact 231 during the movement. Specifically, the first movable contact 441 and the second movable contact 442 are in contact with each other. 42 are respectively provided at both ends of the second connecting plate 41, the first moving contact 441 is provided at one end of the second connecting plate 41 close to the hinge hole 211, and the second moving contact 442 is provided at one end of the second connecting plate 41 away from the hinge hole 211. By separating the two ends, when the dial member 3 swings, the moving path of the first moving contact 441 is smaller than the path of the second moving contact 442, and the first moving contact 441 can continuously contact with the first fixed contact 231. The moving path of the first moving contact 441 is arc-shaped, and the distribution shape of the first fixed contact 231 is also arc-shaped, and the second moving contact 442 can switch contact between multiple second fixed contacts 232. Each time a second fixed contact 232 is switched, a gear is switched. In other embodiments, the number of the first fixed contacts 231 may also be multiple, and the multiple first fixed contacts 231 are arranged on the side of the sliding hole 212 close to the hinge hole 211. At this time, the shape of the first fixed contact 231 is not arc-shaped, the length of each first fixed contact 231 is less than or equal to the length of each second fixed contact 232, and the first moving contact 441 can switch between the multiple first fixed contacts 231.

[0053] By respectively arranging the first fixed contact 231 and the second fixed contact 232 on both sides of the sliding hole 212, and arranging the first moving contact 441 and the second moving contact 442 at both ends of the second connecting plate 41, and the second connecting plate 41 extending toward the hinge hole 211, the space on the surface of the light source panel 21 can be utilized as much as possible for installation and operation, which can save space and is conducive to the miniaturization and integration of the lamp.

[0054] 4 to 6 disclose a second embodiment of the present invention. Different from the first embodiment, in the second embodiment, the first fixed contact 231 and the second fixed contact 232 are distributed on the same side of the sliding hole 212. A single first fixed contact 231 and a single second fixed contact 232 constitute a set of normally open circuit switches. Therefore, there are multiple sets of normally open circuit switches on the light source board 21. The first moving contact 441 and the second moving contact 442 are respectively arranged on both sides of the same end of the second connecting plate 41. When the contact member 4 moves, the first moving contact 441 and the second moving contact 442 can contact the first fixed contact 231 and the second fixed contact 232, thereby closing the normally open circuit formed by the first fixed contact 231 and the second fixed contact 232. The first fixed contact 231 and the second fixed contact 232 can move to different normally open circuits to close the circuit, thereby realizing gear switching. The number of the first fixed contacts 231 and the number of the second fixed contacts 232 are not necessarily equal. By reasonably setting the distance between the first movable contact 441 and the second movable contact 442, when the first movable contact 441 is in contact with the first fixed contact 231, the second movable contact 442 is connected to the second fixed contact 232, and when the first movable contact 441 is in contact with the second fixed contact 232, the second movable contact 442 is connected to the first fixed contact 231.

[0055] By distributing the first fixed contact 231 and the second fixed contact 232 on the same side of the sliding hole 212, the radial span of the adjustment component 10 on the light source board 21 can be shortened, and the larger space at the edge of the light source board 21 can be utilized as much as possible, thereby achieving the effect of reducing the volume and saving operating space.

[0056] Figures 7 to 10 disclose a third embodiment of the present invention. Different from the first embodiment, in the third embodiment, the contact member 4 is connected to the connecting portion 34 by plugging, and the distribution of the first fixed contact 231, the second fixed contact 232, the first moving contact 441 and the second moving contact 442 is the same as that of the second embodiment.

[0057] Specifically, referring to Figure 8, a connecting hole 342 is provided on the connecting portion 34, and the connecting hole 342 passes through the connecting portion 34. The contact member 4 also includes a plug-in portion 45, and the second connecting plate 41 is bent and connected to the plug-in portion 45. The plug-in portion 45 can be inserted into the connecting hole 342, and the second connecting plate 41 is fixed to the surface of the connecting portion 34.

[0058] Referring to Figure 10, in order to fix the plug-in portion 45, a limiting piece 451 is provided on both sides of the plug-in portion 45, one end of the limiting piece 451 is connected to the plug-in portion 45, and the other end of the limiting piece 451 is directed toward the second connecting plate 41 and extends obliquely toward the outside of the plug-in portion 45, and the plug-in portion 45 is used to be inserted into the connecting hole 342 to form a connection, and the limiting piece 451 can be used to form a locking position with the connecting hole 342, and an inclined surface 343 is provided in the opening at one end of the connecting hole 342, and the inclined surface 343 is inclined. The direction is the same as the inclination direction of the limiting piece 451. After the plug-in part 45 is inserted into the connecting hole 342, one end of the limiting piece 451 can abut against the end of the connecting part 34 away from the inclined surface 343, thereby preventing the plug-in part 45 from falling out. Therefore, the limiting piece 451 and the connecting hole 342 constitute a vertical limit, and the inclined surface 343 can facilitate the extrusion of the limiting piece 451, so that the inclination degree of the limiting piece 451 is reduced, which facilitates the entire insertion of the plug-in part 45 into the connecting hole 342. The contact member 4 also includes a fixing portion 46, which is arranged between the second connecting plate 41 and the plug-in portion 45. After being inserted into the connecting hole 342, a limiting boss 461 is provided on the side of the fixing portion 46. The limiting boss 461 protrudes outward and can abut against the connecting hole 342. Therefore, the limiting boss 461 and the connecting hole 342 constitute a horizontal limit.

[0059] In the third embodiment, the first fixed contact 231 and the second fixed contact 232 are distributed on the same side of the sliding hole 212, and a single first fixed contact 231 and a single second fixed contact 232 constitute a set of normally open circuit switches, so there are multiple sets of normally open circuit switches on the light source board 21, and the first moving contact 441 and the second moving contact 442 are arranged at the same end of the second connecting plate 41. When the contact member 4 moves, the first moving contact 441 and the second moving contact 442 can contact the first fixed contact 231 and the second fixed contact 232, thereby closing the normally open circuit formed by the first fixed contact 231 and the second fixed contact 232. The first fixed contact 231 and the second fixed contact 232 can move to different normally open circuits to close the circuit, thereby realizing the switching of the electrical circuit. By properly setting the distance between the first movable contact 441 and the second movable contact 442, it is possible to ensure that when the first movable contact 441 contacts the first fixed contact 231, the second movable contact 442 connects to the second fixed contact 232, and when the first movable contact 441 contacts the second fixed contact 232, the second movable contact 442 connects to the first fixed contact 231. Similar to the second embodiment, by distributing the first fixed contact 231 and the second fixed contact 232 on the same side of the sliding hole 212, the radial span of the adjustment assembly 10 on the light source board 21 can be shortened, and the larger space at the edge of the light source board 21 can be maximized, thereby reducing the volume and saving operating space.

[0060] 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 dial lighting fixture, characterized in that: The light source assembly comprises a housing, a light source assembly disposed in the housing, and an adjustment assembly connected to the light source assembly, wherein the housing comprises a shell, the light source assembly comprises a light source board and a light source member disposed on the light source board, and the light source board is connected to the shell; The adjustment assembly includes a dial piece and a contact piece, one end of the dial piece is hinged to the light source board, the contact piece is connected to the dial piece, the contact piece abuts against the light source board, a connection contact is provided on the light source board, the contact piece can contact the connection contact, the dial piece can swing around the hinge between the light source board and the dial piece, and when the dial piece swings, it can drive the contact piece to slide between different connection contacts.

2. The dial-controlled dimming lighting fixture according to claim 1, characterized in that: The contact piece is a spring, and the contact piece is connected to the dial piece through a fastener, or The contact piece is plugged into the dial piece.

3. The dial-controlled dimming lighting fixture according to claim 2, characterized in that: The contact element is provided with a sliding contact which can come into contact with the connecting contact.

4. The dial-controlled dimming lighting fixture according to claim 3, characterized in that: The number of the sliding contacts is two, and the two sliding contacts are respectively arranged on both sides of the fastener, or the sliding contacts are both arranged on the same side of the fastener.

5. The dial-controlled dimming lighting fixture according to claim 3, characterized in that: A connecting hole is provided in the dial piece, and the contact piece is plugged into the connecting hole.

6. The dial-controlled dimming lighting fixture according to claim 5, characterized in that: The number of the sliding contacts is two, and the two sliding contacts are arranged on the same side of the connecting hole.

7. The dial lighting fixture according to claim 4 or 6, characterized in that: A hinge portion is provided at one end of the dial piece, and a paddle portion is provided at the other end of the dial piece. A hinge hole is provided on the light source board, and the hinge portion can be inserted into the hinge hole. A positioning protrusion is provided at the end of the hinge portion, and the positioning protrusion protrudes from the side wall of the hinge portion and can abut against the light source board. The paddle portion can swing around the hinge hole, and the paddle portion protrudes toward the outside of the shell.

8. The dial lighting fixture according to claim 7, characterized in that: The dial member further includes a first connecting plate and a connecting portion, wherein the first connecting plate is connected between the hinge portion and the dial portion, the connecting portion protrudes from the first connecting plate, and the contact member is connected to the connecting portion.

9. The dial lighting fixture according to claim 8, characterized in that: An adjustment hole is provided on the side wall of the shell, the length direction of the adjustment hole is parallel to the surface of the light source board, and the paddle portion passes through the adjustment hole and protrudes from the outer side wall of the shell; a sliding hole is provided on the light source board, the length direction of the sliding hole is parallel to the length direction of the adjustment hole, and the connecting portion protrudes from the sliding hole and can move in the sliding hole.

10. The dial lighting fixture according to claim 9, characterized in that: The inner side wall of the sliding hole is provided with a plurality of limiting notches, the limiting notches are recessed toward the inner side of the sliding hole, the edges of the limiting notches are arc-shaped, and the plurality of limiting notches are distributed along the length direction of the sliding hole and are interconnected to form a wave shape. The side of the connecting part is provided with a limiting protrusion, the shape of the limiting protrusion corresponds to the shape of the limiting notch, and the limiting protrusion can be buckled into the limiting notch.

11. The dial lighting fixture according to claim 9, characterized in that: The dial member also includes a guide rod, which is arranged at one end of the dial portion located inside the shell. The shape of the guide rod corresponds to the shape of the inner wall of the shell. The side of the guide rod abuts against the inner wall of the shell, and the guide rod can slide along the inner wall of the shell.

12. The dial lighting fixture according to claim 9, characterized in that: The contact member includes a second connecting plate and a limiting plate. The limiting plates are arranged on both sides of the second connecting plate and protrude from the second connecting plate. The connecting portion can be inserted between the two limiting plates.

13. The dial lighting fixture according to claim 12, characterized in that: The contact piece also includes a connecting piece and a contact piece, the second connecting plate is bent and connected to the connecting piece, the connecting piece is bent and connected to the contact piece, the contact piece is provided with a first moving contact and a second moving contact, and the connecting contact includes a first fixed contact and a second fixed contact; when the first moving contact is in contact with the first fixed contact, the second moving contact is connected to the second fixed contact; when the first moving contact is in contact with the second fixed contact, the second moving contact is connected to the first fixed contact.

14. The dial lighting fixture according to claim 13, characterized in that: The first fixed contact is arranged on a side of the sliding hole close to the hinge hole, and the second fixed contact is arranged on a side of the sliding hole away from the hinge hole; the first moving contact and the second moving contact are respectively arranged at two ends of the second connecting plate, the first moving contact can contact with the first fixed contact, and the second moving contact can contact with the second fixed contact.

15. The dial-controlled dimming lighting fixture according to claim 13, characterized in that: The first fixed contact and the second fixed contact are distributed on the same side of the sliding hole, and the first movable contact and the second movable contact are respectively arranged on both sides of the same end of the second connecting plate.

16. The dial lighting fixture according to claim 15, characterized in that: The connecting portion is provided with a connecting hole, and the contact piece further includes an inserting portion. The second connecting plate is bent and connected to the inserting portion, and the inserting portion can be inserted into the connecting hole.

17. The dial lighting fixture according to claim 16, characterized in that: A limiting piece is provided on both sides of the plug-in part, one end of the limiting piece is connected to the plug-in part, and the other end of the limiting piece is extended toward the second connecting plate and inclined toward the outside of the plug-in part. A slope is provided in the opening at one end of the connecting hole, and the inclination direction of the slope is the same as the inclination direction of the limiting piece. One end of the limiting piece can abut against the end of the connecting part away from the slope.

18. The dial lighting fixture according to claim 17, characterized in that: The contact piece further includes a fixing portion, which is arranged between the second connecting plate and the plug-in portion. A side portion of the fixing portion is provided with a limiting boss, which protrudes outward and can abut against the connecting hole.

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