A convenient operation and maintenance cabin ceiling lamp

Abstract

This invention relates to the field of lighting electrical technology, and the technical problem to be solved is to provide a cabin roof light that is easy to operate and maintain. The light includes a lamp housing, a light source assembly, a driver, a switch, and a potentiometer. The lamp housing includes a shell and a cover. The cover has a switch hole and a potentiometer hole. The switch is a boat-shaped switch and includes a switch body and a switch operating part. The switch body is fixed to the switch hole, and the switch operating part is integral with the switch body and located on the outside of the cover. The potentiometer includes a potentiometer body and a potentiometer operating part. The potentiometer body is fixed to the potentiometer hole, and the potentiometer operating part is fixed with the potentiometer body and located on the outside of the cover. The switch has a switch docking terminal, and the two ends of the switch docking terminal are respectively connected to the switch body and the driver wiring. The potentiometer has a potentiometer docking terminal, and the two ends of the potentiometer docking terminal are respectively connected to the potentiometer body and the driver wiring. This invention facilitates operation and maintenance.

Description

Technical Field

[0001] This invention relates to the field of lighting electrical technology, and more specifically, to a cabin roof light that is easy to operate and maintain. Background Technology

[0002] In existing technologies, the lighting status switching switches for automotive cabin dome lights are not intuitive enough, and the status switching function indicators are not obvious, making it inconvenient for operators to directly switch to the desired lighting status. Furthermore, the potentiometers required for dimming are located on the side or back of the light fixture, which is also inconvenient for operators.

[0003] The switch and potentiometer may be damaged during use due to improper operation or impact. When maintenance is required, the entire lamp needs to be disassembled because the switch and potentiometer are directly connected to the driver, making the maintenance operation extremely inconvenient.

[0004] CN209445218U discloses a dual-mode cockpit dome light structure using button dimming, comprising: a lamp panel with a panel light source perforation and a panel switch perforation; a lamp housing with a housing light source internal space and a housing switch internal space; a lamp rear cover; a lamp shade; a button switch placed inside the panel switch perforation; a light source printed circuit board component placed inside the housing light source internal space; and a control printed circuit board component placed between the top surface of the lamp rear cover and the bottom surface of the lamp housing. The control printed circuit board component has a light source control part and a switch control part, the light source control part being electrically connected to the light source printed circuit board component, and the switch control part being electrically connected to the button switch. The advantages of this utility model are: optimizing the structural design of the cockpit dome light, eliminating potentiometers and toggle switches, adding a switch button and a dimming button, and optimizing the panel structure, resulting in a simple and aesthetically pleasing switch arrangement.

[0005] The original design disassembled the housing into a back cover, housing, lampshade, and panel, resulting in a complex structure with numerous parts and inconvenient installation. While the potentiometer and toggle switch were eliminated and replaced with a push-button switch, the optimization of the panel structure resulted in a simpler and more aesthetically pleasing switch arrangement. However, this reduced the potentiometer's function of adjusting light intensity, limiting its use to changing the lighting mode and controlling whether the light source was on or off via voltage switching. Furthermore, the push-button switch was electrically connected to a switch control unit located on a control printed circuit board, which was situated between the top surface of the back cover and the bottom surface of the housing. Therefore, maintenance still required disassembling the entire lamp, making the repair process extremely inconvenient. Summary of the Invention

[0006] The present invention aims to solve the above-mentioned technical problems to at least some extent.

[0007] The purpose of this invention is to provide a cabin roof light that is simple and compact in structure, aesthetically pleasing, and easy to operate and maintain.

[0008] The technical solution adopted by this invention to solve its technical problem is as follows: a cabin roof light that is easy to operate and maintain, comprising a lamp housing, a light source assembly, a driver, a switch, and a potentiometer. The lamp housing includes a shell and a cover. The cover has a switch hole and a potentiometer hole. The switch is a ship-shaped switch and includes a switch body and a switch operating part. The switch body is fixed to the switch hole, and the switch operating part is integral with the switch body and located on the outside of the cover. The potentiometer includes a potentiometer body and a potentiometer operating part. The potentiometer body is fixed to the potentiometer hole, and the potentiometer operating part is fixed with the potentiometer body and located on the outside of the cover. The switch has a switch docking terminal. One end of the switch docking terminal is wired to the switch body, and the other end of the switch docking terminal is wired to the driver. The potentiometer has a potentiometer docking terminal. One end of the potentiometer docking terminal is wired to the potentiometer body, and the other end of the potentiometer docking terminal is wired to the driver.

[0009] The lamp housing of this invention consists only of a housing and a cover, eliminating the need to disassemble it into a back cover, housing, lampshade, and panel, resulting in a simpler and more aesthetically pleasing structure. Both the switch and potentiometer operating sections are located on the outside of the cover, specifically on the side of the cover facing away from the housing and towards the user, allowing operators to easily switch lighting states and adjust brightness. Since both the switch and potentiometer have independent terminals for connection to the drive wiring, when maintenance or replacement is required, simply opening the cover and disconnecting the terminals allows for easy removal and replacement of the switch and potentiometer, eliminating the need to disassemble the entire lamp fixture or remove other components, thus simplifying maintenance and improving efficiency.

[0010] In a preferred embodiment, the housing is provided with an isolation section. The isolation section is annular and divides the housing into an inner region and an outer region. The inner region and the housing cover together form an inner cavity, and the outer region and the housing cover together form an outer cavity. The light source assembly and the drive are disposed in the inner cavity. The isolation section divides the housing into inner and outer regions, facilitating the placement and assembly of different components. The annular shape of the isolation section also provides support for the housing cover, improving the overall strength of the housing and the housing cover, and enhancing durability.

[0011] More preferably, the cover includes a transparent part and a non-transparent part. The transparent part is circular and located in the center of the cover. The non-transparent part is located on the outer periphery of the transparent part and is divided into an inner ring surface and an outer ring surface by an insulating portion. The inner area, the transparent part, and the inner ring surface together form an inner cavity, and the outer area and the outer ring surface together form an outer cavity. The transparent part faces the light source assembly. Dividing the cover into a transparent part and a non-transparent part, with only the area of ​​the transparent part facing the light source assembly, results in an aesthetically pleasing appearance and excellent lighting effect.

[0012] More preferably, the switch hole is located on the inner ring surface, and its position is higher than that of the isolation part; the potentiometer hole is located on the outer ring surface, and its position is lower than that of the isolation part. Since the potentiometer is taller than the switch, placing the switch hole on the higher inner ring surface and the potentiometer hole on the lower outer ring surface ensures that the installed switch and potentiometer are at approximately the same height, resulting in a more balanced appearance. Furthermore, placing the switch hole on the inner ring surface allows the switch and its terminals to be located inside and outside the inner cavity, while placing the potentiometer hole on the outer ring surface allows the potentiometer and its terminals to be located inside and outside the outer cavity. This facilitates dispersed assembly, prevents interference, and makes operation easier for personnel after assembly.

[0013] More preferably, the isolation section is provided with a wiring hole and a wiring channel. The wiring channel passes through the wiring hole and connects the inner cavity and the outer cavity. The other end of the potentiometer terminal is connected to the drive wiring through the wiring channel. Since the potentiometer and its terminal are located inside and outside the outer cavity, the wiring hole and wiring channel in the isolation section facilitate the connection between the potentiometer terminal and the drive wiring of the inner cavity. This also makes the internal wiring neater and more aesthetically pleasing, avoids interference between the wiring and other components, and facilitates assembly. The wiring channel also protects the wiring, preventing it from being scratched by the casing, which could lead to leakage and safety hazards.

[0014] More preferably, the light source assembly includes a light source substrate and a reflector. The light source substrate and the reflector are each provided with a switch notch, and the portion of the switch body located within the inner cavity is accommodated within the switch notch. The light source substrate, the reflector, and the switch are all located inside and outside the inner cavity. The switch notch on the light source substrate and the reflector avoids interference between the switch body and the light source substrate and the reflector, facilitating assembly.

[0015] In a preferred embodiment, the inner region includes a driving region and a heat dissipation region. The driving region is located in the center of the inner region, and the drive unit is located within the driving region. The heat dissipation regions are located on both sides of the driving region, and each heat dissipation region has multiple heat dissipation fins arranged side by side to form heat dissipation channels. The presence of heat dissipation regions on both sides of the driving region facilitates heat dissipation during operation and improves the drive's service life. Since the heat dissipation regions are located inside the housing, compared to a structure where heat sinks are distributed on the outside of the housing, the outside of the housing can be made into a smooth surface, resulting in a more aesthetically pleasing appearance.

[0016] In a preferred embodiment, an annular sealing ring is provided between the isolation part and the lamp housing, and an annular sealing groove is provided on the outer peripheral surface of the isolation part, with the annular sealing ring fitting inside the annular sealing groove. The annular sealing ring forms a seal between the isolation part and the lamp housing, which can prevent water seepage, protect the light source assembly and important components such as the driver inside the cavity, and extend their service life.

[0017] In a preferred embodiment, a fixing groove is provided at the switch hole, located inside the housing. Electro-silicone is dripped into the fixing groove to fix the switch body to the switch hole. Fixing the switch body with electro-silicone allows the entire switch to withstand high-intensity impacts, thus increasing its durability.

[0018] In a preferred embodiment, a fixing plane is provided at the potentiometer hole, located on the outer side of the housing. Fasteners are provided on the fixing plane to fix the potentiometer body to the potentiometer hole. The potentiometer operating part is cap-shaped and fits around the circumference of the potentiometer body. The inner wall of the potentiometer operating part is fixed to the circumference of the potentiometer body by applying silicone gel. Since the outer contour surface of the housing may be an uneven, curved surface, making it inconvenient to fix the potentiometer, a fixing plane is provided at the potentiometer hole to facilitate fixing the potentiometer body with fasteners. Fixing the potentiometer operating part to the potentiometer body with silicone gel allows the entire potentiometer to withstand high-intensity impacts, increasing its durability.

[0019] The beneficial effects of this invention are: compared with the prior art,

[0020] 1. The lamp housing consists only of the housing and the cover, without the need to be disassembled into the back cover, housing, lampshade, and panel, etc., making the structure simpler and more aesthetically pleasing;

[0021] 2. Both the switch operation section and the potentiometer operation section are located on the outside of the cover, that is, on the side of the cover facing away from the housing and facing the user, so that the operator can easily switch the light status and adjust the dimming.

[0022] 3. When it is necessary to repair or replace the switch and potentiometer, simply open the cover and disconnect the terminals to remove the switch and potentiometer for replacement. There is no need to disassemble the entire lamp or remove other parts, which facilitates maintenance operations and improves efficiency.

[0023] 4. The isolation section divides the shell into inner and outer zones, facilitating the placement and assembly of different components. The ring-shaped isolation section also provides support for the shell cover, increasing the overall strength and durability of the shell and cover.

[0024] 5. Heat dissipation areas are provided on both sides of the drive area, which is beneficial for heat dissipation during operation and improves the service life of the drive;

[0025] 6. The heat dissipation area is located on the inside of the casing. Compared with the structure in which the heat dissipation fins are distributed on the outside of the casing, the outside of the casing can be made into a smooth surface, which is more aesthetically pleasing.

[0026] 7. The annular sealing ring forms a seal between the isolation part and the lamp housing, which can prevent water seepage, protect the light source components and important parts such as the driver in the inner cavity, and extend the service life. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the present invention.

[0028] Figure 2 This is an exploded structural diagram of an embodiment of the present invention.

[0029] Figure 3 This is a three-dimensional structural diagram of the shell in one embodiment of the present invention.

[0030] Figure 4 This is a three-dimensional structural diagram of the shell cover in one embodiment of the present invention.

[0031] Figure 5 This is an exploded structural diagram of the shell cover in one embodiment of the present invention.

[0032] Figure 6 This is a three-dimensional structural diagram of a switch in one embodiment of the present invention.

[0033] Figure 7 This is a schematic diagram of the potentiometer assembly in one embodiment of the present invention.

[0034] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the invention. To better illustrate the embodiments, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. Detailed Implementation

[0035] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] like Figures 1 to 7 As shown, a cabin overhead light 100 of the present invention, which is easy to operate and maintain, includes a lamp housing, which includes a housing 101 and a cover 102. The cabin overhead light 100 also includes a light source assembly, a driver 103, a switch 104, and a potentiometer 105. The light source assembly includes a light source substrate 106 and a reflector 107.

[0037] The cover 102 is provided with a switch hole 108 and a potentiometer hole 109. The switch 104 is a rocker switch and includes a switch body 110 and a switch operating part 111. The switch body 110 is fixed to the switch hole 108, and the switch operating part 111 is integral with the switch body 110 and is located on the outside of the cover 102. The potentiometer 105 includes a potentiometer body 112 and a potentiometer operating part 113. The potentiometer body 112 is fixed to the potentiometer hole 109, and the potentiometer operating part 113 is fixed to the potentiometer body 112 and is located on the outside of the cover 102.

[0038] In this embodiment, a fixing groove 114 is provided at the switch hole 108. The fixing groove 114 is located inside the housing cover 102. Electro-silicone is dripped into the fixing groove 102 to fix the switch body 110 to the switch hole 108. During assembly, the switch body 110 passes through the switch hole 108 from the outside of the housing cover 102. By dripping electro-silicone into the fixing groove 114 to fix the switch body 110, the entire switch 104 can withstand high-intensity impacts and is more durable.

[0039] In this embodiment, a fixing plane 115 is provided at the potentiometer hole 109. The fixing plane 115 is located on the outside of the housing 102. The fixing plane 115 is equipped with fasteners to fix the potentiometer body 112 to the potentiometer hole 109. The potentiometer operating part 113 is cap-shaped and fits around the circumference of the potentiometer body 112. The inner wall of the potentiometer operating part 113 is fixed to the circumference of the potentiometer body 112 by dripping in electronic silicone. Since the outer contour surface of the housing 102 may be an uneven curved surface, making it inconvenient to fix the potentiometer 105, a fixing plane 115 is provided at the potentiometer hole 109 to facilitate fixing the potentiometer body 112 with fasteners.

[0040] The fasteners include a flat washer 116 and a nut 117. During assembly, the potentiometer body 112 passes through the potentiometer hole 109 from the inside of the housing 102. The flat washer 116 is placed on the fixing plane 115, and the potentiometer body 112 is locked above the flat washer 116 by the nut 117. Then, the potentiometer operating part 113 is fitted onto the circumference of the potentiometer body 112, and the inner wall of the potentiometer operating part 113 is fixed to the circumference of the potentiometer body 112 by applying electrolytic silicone. By fixing the potentiometer operating part 113 to the potentiometer body 112 with electrolytic silicone, the entire potentiometer 105 can withstand high-intensity impacts, making it more durable.

[0041] The lamp housing of the present invention consists only of a housing 101 and a cover 102, eliminating the need to disassemble it into a back cover, housing, lamp shade, and panel, resulting in a simpler and more aesthetically pleasing structure. The switch operation unit 111 and the potentiometer operation unit 113 are both located on the outside of the cover 102, that is, on the side of the cover 102 facing away from the housing 101 and facing the user, making it convenient for operators to switch the light state and adjust the dimming.

[0042] The switch 104 is provided with a switch docking terminal 118, one end of which is wired to the switch body 110, and the other end of which is wired to the drive 103. The potentiometer 105 is provided with a potentiometer docking terminal 119, one end of which is wired to the potentiometer body 112, and the other end of which is wired to the drive 103.

[0043] Since both switch 104 and potentiometer 105 have independent terminals for wiring connection with driver 103, when it is necessary to repair or replace switch 104 and potentiometer 105, it is only necessary to open the cover 102 and disconnect the terminals to remove switch 104 and potentiometer 105 for replacement. There is no need to disassemble the entire lamp or remove other parts, which facilitates maintenance operations and improves efficiency.

[0044] In this embodiment, the housing 101 is provided with an isolation portion 120. The isolation portion 120 is annular and divides the housing into an inner region and an outer region. The inner region and the housing cover 102 together form an inner cavity, and the outer region and the housing cover 102 together form an outer cavity. The drive 103, the light source substrate 106, and the reflector 107 are disposed in the inner cavity. The isolation portion 120 divides the housing 101 into an inner and outer region, facilitating the placement and assembly of different components. The annular shape of the isolation portion 120 also provides support for the housing cover 102, improving the overall strength of the housing 101 and the housing cover 102, and making them more durable.

[0045] In this embodiment, the cover 102 includes a transparent part 121 and a non-transparent part 122. The transparent part 121 is circular and located in the center of the cover 102. The non-transparent part 122 is located on the outer periphery of the transparent part 121 and is divided into an inner ring surface 123 and an outer ring surface 124 by an isolation portion 120. The inner area, the transparent part 121, and the inner ring surface 123 together form an inner cavity, and the outer area and the outer ring surface 124 together form an outer cavity. The transparent part 121 faces the light source assembly. Dividing the cover 102 into the transparent part 121 and the non-transparent part 122, with only the area of ​​the transparent part 121 facing the light source assembly, results in an aesthetically pleasing appearance and excellent lighting effect.

[0046] In this embodiment, the switch hole 108 is located on the inner ring surface 123, and its position is higher than that of the isolation portion 120. The potentiometer hole 109 is located on the outer ring surface 124, and its position is lower than that of the isolation portion 120. Since the height of the potentiometer 105 is greater than that of the switch 104, the switch hole 108 is located on the higher inner ring surface 123, and the potentiometer hole 109 is located on the lower outer ring surface 124, so that the heights of the installed switch 104 and potentiometer 105 are basically the same, resulting in a more balanced appearance. In addition, the switch hole 108 being located on the inner ring surface 123 allows the switch 104 and the switch terminal 118 to be located inside and outside the inner cavity, while the potentiometer hole 109 being located on the outer ring surface 124 allows the potentiometer 105 and the potentiometer terminal 119 to be located inside and outside the outer cavity, facilitating dispersed assembly without interference between them, and making it convenient for operators to operate after assembly.

[0047] In this embodiment, the isolation section 120 is provided with a wiring hole 125 and a wiring channel 126. The wiring channel 126 passes through the wiring hole 125 and connects the inner cavity and the outer cavity. The other end of the potentiometer terminal 119 is connected to the driver 103 through the wiring channel 126. Since the potentiometer 105 and the potentiometer terminal 119 are located inside and outside the outer cavity, the wiring hole 125 and the wiring channel 126 in the isolation section 120 facilitate the wiring connection between the potentiometer terminal 119 and the driver 103 in the inner cavity. This also makes the internal wiring neater and more aesthetically pleasing, avoids interference between the wiring and other components, and facilitates assembly. The wiring channel 126 also protects the wiring, preventing it from being scratched by the casing, which could lead to leakage and safety hazards.

[0048] In this embodiment, the light source substrate 106 and the reflector 107 are each provided with a switch notch 127, and the portion of the switch body 110 located in the inner cavity is accommodated within the switch notch 127. The light source substrate 106, the reflector 107, and the switch 104 are all located inside and outside the inner cavity. The switch notch 127 provided on the light source substrate 106 and the reflector 107 avoids interference between the switch body 110 and the light source substrate 106 and the reflector 107, and facilitates assembly.

[0049] In this embodiment, the inner region includes a driving region 128 and a heat dissipation region 129. The driving region 128 is located in the center of the inner region, and the drive 103 is located in the driving region 128. The heat dissipation regions 129 are respectively located on both sides of the driving region 128. Each heat dissipation region 129 has multiple heat dissipation fins, which are arranged side by side to form heat dissipation channels. The presence of heat dissipation regions 129 on both sides of the driving region 128 facilitates heat dissipation of the drive 103 during operation and improves its service life. The heat dissipation regions 129 are located inside the housing 101. Compared to a structure where heat sinks are distributed on the outside of the housing, the outside of the housing 101 can be made into a smooth surface, resulting in a more aesthetically pleasing appearance.

[0050] In this embodiment, an annular sealing ring 130 is provided between the isolation part 120 and the lamp housing 102, and an annular sealing groove 131 is provided on the outer peripheral surface of the isolation part 120. The annular sealing ring 130 is fitted into the annular sealing groove 131. The annular sealing ring 130 forms a seal between the isolation part 120 and the lamp housing 102, which can prevent water seepage, protect the light source assembly and important components such as the driver in the inner cavity, and extend the service life.

[0051] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A cabin roof light that is easy to operate and maintain, comprising a lamp housing, a light source assembly, a driver, a switch, and a potentiometer, characterized in that, The lamp housing includes a housing and a cover. The cover has a switch hole and a potentiometer hole. The switch is a rocker switch and includes a switch body and a switch operating part. The switch body is fixed to the switch hole, and the switch operating part is integral with the switch body and located on the outside of the cover. The potentiometer includes a potentiometer body and a potentiometer operating part. The potentiometer body is fixed to the potentiometer hole, and the potentiometer operating part is fixed with the potentiometer body and located on the outside of the cover. The switch is provided with a switch docking terminal, one end of which is connected to the switch body and the other end of which is connected to the drive wiring. The potentiometer is provided with a potentiometer docking terminal, one end of which is connected to the potentiometer body and the other end of which is connected to the drive wiring.

2. The easy-to-operate and maintain cabin dome light according to claim 1, characterized in that, The housing is provided with an isolation section, which is annular and divides the housing into an inner area and an outer area. The inner area and the housing cover together form an inner cavity, and the outer area and the housing cover together form an outer cavity. The light source assembly and the drive are located in the inner cavity.

3. The easy-to-operate and maintain cabin dome light according to claim 2, characterized in that, The shell cover includes a transparent part and a non-transparent part. The transparent part is circular and located in the center of the shell cover. The non-transparent part is located on the outer periphery of the transparent part and is divided into an inner ring surface and an outer ring surface by an isolation part. The inner area, the transparent part, and the inner ring surface together form an inner cavity. The outer area and the outer ring surface together form an outer cavity. The transparent part faces the light source assembly.

4. The easy-to-operate and maintain cabin dome light according to claim 3, characterized in that, The switch hole is located on the inner ring surface, and its position is higher than that of the isolation part. The potentiometer hole is located on the outer ring surface, and its position is lower than that of the isolation part.

5. The easy-to-operate and maintain cabin dome light according to claim 4, characterized in that, The isolation section is provided with a wiring hole and a wiring channel. The wiring channel passes through the wiring hole and connects the inner cavity and the outer cavity. The other end of the potentiometer docking terminal is connected to the drive wiring through the wiring channel.

6. The easy-to-operate and maintain cabin dome light according to claim 4, characterized in that, The light source assembly includes a light source substrate and a reflector cup. The light source substrate and the reflector cup are respectively provided with a switch notch. The portion of the switch body located in the inner cavity is accommodated within the switch notch.

7. The easy-to-operate and maintain cabin dome light according to claim 2, characterized in that, The inner area includes a driving area and a heat dissipation area. The driving area is located in the center of the inner area, and the drive is located in the driving area. The heat dissipation areas are respectively located on both sides of the driving area. The heat dissipation area is provided with multiple heat dissipation fins, and the heat dissipation fins are arranged side by side so that heat dissipation channels are formed between the heat dissipation fins.

8. The easy-to-operate and maintain cabin dome light according to claim 2, characterized in that, An annular sealing ring is provided between the isolation part and the lamp housing, and an annular sealing groove is provided on the outer peripheral surface of the isolation part, with the annular sealing ring fitting inside the annular sealing groove.

9. The easy-to-operate and maintain cabin dome light according to any one of claims 1 to 8, characterized in that, A fixing groove is provided at the switch hole. The fixing groove is located inside the shell cover. Electronic silicone is dripped into the fixing groove to fix the switch body to the switch hole.

10. The easy-to-operate and maintain cabin dome light according to any one of claims 1 to 8, characterized in that, A fixing plane is provided at the potentiometer hole. The fixing plane is located on the outside of the shell cover. The fixing plane is provided with fasteners and fixes the potentiometer body to the potentiometer hole. The potentiometer operating part is cap-shaped and fits around the periphery of the potentiometer body. The inner wall of the potentiometer operating part is fixed to the periphery of the potentiometer body by dripping in electronic silicone.

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