Down lamp with replaceable light source
By using snap-fit components and conductive components in the downlight to detachably connect the light source substrate to the downlight body, the problem of needing to replace the entire downlight in the past is solved, and the light source substrate can be replaced separately, reducing maintenance and usage costs.
Patent Information
- Application Number
- CN202520369333.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-04
AI Technical Summary
The existing downlights have their light source substrate welded and fixed to the downlight body. When the LED light source is damaged or the brightness is insufficient, the entire downlight needs to be replaced, resulting in high maintenance costs.
The light source substrate is detachably connected to the downlight body by using snap-fit components and conductive components. The snap-fit blocks and snap-fit platforms enable the detachable installation and electrical connection of the light source substrate.
It enables the individual replacement of the light source substrate, reducing maintenance and usage costs, and is simple and convenient to operate.
Smart Images
Figure CN223795165U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of lamps and lanterns, especially a down lamp with replaceable light source. BACKGROUND
[0002] With the development of society and the continuous improvement of scientific and technological level, the lighting lamps on the market are more and more various, and the down lamp is a kind of lamp often used in people's daily life.
[0003] The existing down lamp generally adopts the following structure, including down lamp main body, the hollow accommodating cavity is arranged in the down lamp main body, the front end of the down lamp main body is trumpet-shaped, the rear end of the down lamp main body is fixedly installed with the light source substrate, the light source substrate is provided with one or more LED light sources capable of emitting light after being electrified, the LED light sources are all positioned in the accommodating cavity, the light emitted by the LED light sources is all emitted from the front end of the accommodating cavity, the rear end of the down lamp main body is provided with a power supply assembly for powering the light source substrate, the light source substrate and the power supply assembly are welded together, the power supply assembly is electrically connected with the driving power supply, and the driving power supply can be electrically connected with the external circuit.When the external circuit supplies power to the driving power supply, the driving power supply works and supplies power to the light source substrate through the power supply assembly, at this time, the LED light source arranged on the light source substrate can be electrified and emit light, meeting the user's demand for lighting.
[0004] However, since the light source substrate of the down lamp is fixedly welded with the power supply assembly of the down lamp main body, if the LED light source is subject to light decay and results in insufficient brightness, or the LED light source is damaged, or the light source substrate is damaged, the user cannot replace the light source substrate alone, but has to replace the down lamp as a whole, and the maintenance cost is high. UTILITY MODEL CONTENTS
[0005] The utility model aims at solving at least one of the technical problems existing in the prior art. To this end, the utility model provides a down lamp with replaceable light source, the user can replace the light source substrate alone to realize replacement of the light source, without the need of replacing the down lamp as a whole, which helps to reduce the use cost and maintenance cost of the down lamp.
[0006] In order to solve the above technical problems, the utility model adopts the following technical scheme:
[0007] The utility model discloses a replaceable light source's down lamp according to certain embodiments of the utility model, including down lamp main part and light source substrate, the inside of down lamp main part is provided with the accommodation cavity, the rear end of down lamp main part is provided with the intercommunication of with the accommodation cavity intercommunication, the front end of accommodation cavity has the open mouth, light source substrate is provided with at least one light source of electrifying can emit light, the light source substrate with down lamp main part between is provided with at least one group of clamping assembly, the clamping assembly includes the clamping block and the clamping platform of the mutual cooperation clamping, the clamping platform sets up in the inner wall of the accommodation cavity, the clamping block sets up in the light source substrate, the light source substrate with down lamp main part between is provided with the power supply structure, the power supply structure includes the first conductive component and the second conductive component of the mutual contact conduction of being able to, the first conductive component sets up in down lamp main part, the second conductive component sets up in the light source substrate,
[0008] The light source substrate is movably installed in the accommodation cavity, when the light source substrate rotates relative to the down lamp main body, the clamping block and the clamping platform can relatively move close and clamp, the first conductive component and the second conductive component contact each other, or the light source substrate reversely rotates relative to the down lamp main body, the clamping block and the clamping platform can relatively move apart and unclamp, and the first conductive component and the second conductive component are separated from each other.
[0009] The down lamp with replaceable light source according to certain embodiments of the utility model has the following beneficial effects:
[0010] The light source substrate and the down lamp main body of the down lamp with replaceable light source according to the embodiment are clamped by the clamping assembly, and the light source substrate and the down lamp main body contact each other through the first conductive component and the second conductive component, when the light source substrate is movably installed in the accommodation cavity, the clamping block and the clamping platform can relatively move close and clamp when the light source substrate rotates relative to the down lamp main body, the first conductive component and the second conductive component contact each other, the light source substrate is installed in the down lamp main body, and the electrical connection between the light source substrate and the down lamp main body is completed, when the light source substrate reversely rotates relative to the down lamp main body, the clamping block and the clamping platform can relatively move apart and unclamp, and the first conductive component and the second conductive component are separated from each other. Through the above structure, the power supply connection structure between the light source substrate and the down lamp main body is more simple and convenient, when the light source needs to be replaced, the light source substrate only needs to be reversely rotated and removed, and then a new light source substrate is replaced, so that the operation is simple and convenient, and the user does not need to replace the down lamp as a whole, which greatly reduces the cost of maintaining the down lamp.
[0011] In some embodiments of the utility model, a plurality of groups of the clamping assemblies are arranged between the light source substrate and the down lamp body, all the clamping platforms are arranged along the inner wall of the accommodating cavity in sequence and at intervals, all the clamping blocks are arranged along the outer peripheral wall of the light source substrate in sequence and at intervals, and a gap capable of accommodating the clamping block is arranged between two adjacent clamping platforms.
[0012] In some embodiments of the utility model, the clamping groove is arranged on each clamping platform and capable of cooperating with the clamping block, one end of the clamping groove is communicated with the gap, when the light source substrate is located inside the accommodating cavity and the clamping block is located in the gap, the light source substrate rotates relative to the down lamp body and makes the clamping block embedded in the clamping groove, or the light source substrate reversely rotates relative to the down lamp body and makes the clamping block out of the clamping groove.
[0013] In some embodiments of the utility model, the groove depth of the clamping groove gradually decreases along the direction from one end of the clamping groove close to the gap to the other end.
[0014] In some embodiments of the utility model, the first conductive assembly and the second conductive assembly are arranged in one group of the clamping assemblies, the first conductive assembly is arranged on the side surface of the clamping platform facing the clamping block, and the second conductive assembly is arranged on the side surface of the clamping block facing the clamping platform, when the light source substrate rotates relative to the down lamp body and makes the clamping block clamped with the clamping platform, the first conductive assembly and the second conductive assembly are in contact and conductive with each other, or when the light source substrate reversely rotates relative to the down lamp body and makes the clamping block and the clamping platform unclamped with each other, the first conductive assembly and the second conductive assembly are separated from each other.
[0015] In some embodiments of the utility model, a driving power supply detachably mounted on the down lamp body is further included, the driving power supply is electrically connected with the first conductive assembly.
[0016] In some embodiments of the utility model, a male plug and a female plug capable of being plugged with each other are arranged between the down lamp body and the driving power supply, one of the male plug and the female plug is electrically connected with the first conductive assembly, and the other is electrically connected with the driving power supply, and the down lamp body and the driving power supply are detachably plugged together through the male plug and the female plug.
[0017] In some embodiments of the utility model, a light reflecting cup is further included, the light reflecting cup is located inside the accommodating cavity and mounted on the light source substrate, the light reflecting cup covers all the peripheries of the light sources, and a knob is arranged at one end of the light reflecting cup away from the light source substrate.
[0018] In some embodiments of this utility model, at least one set of connection structures is provided between the reflector and the light source substrate. The connection structure includes a connecting post and a connecting hole that are mutually connected. One of the connecting post and the connecting hole is provided in the reflector, and the other is provided in the light source substrate.
[0019] In some embodiments of this utility model, the light outlet of the reflector cup is provided with a diffuser plate, and the rear end of the downlight body is provided with a heat sink that can contact the light source substrate. Attached Figure Description
[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0021] Figure 1 This is a structural schematic diagram of a downlight with a replaceable light source according to certain embodiments of the present invention;
[0022] Figure 2 for Figure 1 The diagram shows a structural schematic of a replaceable light source downlight from another angle.
[0023] Figure 3 for Figure 1 The diagram shows a downlight with a replaceable light source in which the drive power supply is separated from the downlight body.
[0024] Figure 4 for Figure 1 The diagram shows a structural schematic of a replaceable light source downlight where the heat sink, light source substrate, and downlight body are separated.
[0025] Figure 5 for Figure 1 The image shows a cross-sectional view of the internal structure of a downlight with a replaceable light source.
[0026] Figure 6 for Figure 1 The diagram shows a replaceable light source downlight with the light source substrate and the downlight body in a snap-fit state.
[0027] Figure 7 for Figure 1 The diagram shows a replaceable light source downlight with the light source substrate and the downlight body in a disengaged state.
[0028] Figure 8 for Figure 1 The diagram shows the structural schematic of the main body of the replaceable light source downlight;
[0029] Figure 9 for Figure 1The diagram shows the assembly structure of the light source substrate and the reflector in a replaceable light source downlight.
[0030] Figure 10 for Figure 1 The diagram shows an exploded view of the assembly structure of the light source substrate, reflector, and diffuser plate in a replaceable light source downlight.
[0031] Figure 11 for Figure 1 The image shows a cross-sectional view of the assembly structure of the light source substrate, reflector, and diffuser plate in a replaceable light source downlight.
[0032] Figure 12 for Figure 5 Enlarged diagram of point A in the middle. Detailed Implementation
[0033] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0034] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationships based on the directional or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0035] In the description of this utility model, "several" means one or more, "multiple" means three or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If the terms "first," "second," etc., are used only to distinguish technical features, and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.
[0036] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0037] Figures 1 to 12 This is a schematic diagram of some embodiments of a replaceable light source downlight according to the present invention.
[0038] Reference Figures 1 to 12 ( Figure 6And Figure 7 The direction of the arrow indicates the direction in which the light source substrate 200 can rotate relative to the down lamp body 100. The down lamp according to some embodiments of the present application will be described below with reference to the drawings. Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 12 The down lamp according to some embodiments of the present application will be described below with reference to the drawings.The down lamp body 100 is internally provided with a receiving cavity 110, and the rear end of the down lamp body 100 is provided with a communication port 120 that is in communication with the receiving cavity 110. The front end of the receiving cavity 110 has an open mouth 111. In this embodiment, the down lamp body 100 is a circular body that is large in front and small in back. The receiving cavity 110 is located inside the down lamp body 100, the open mouth 111 is formed on the front end surface of the down lamp body 100, and the communication port 120 is formed on the rear end surface of the down lamp body 100. The open mouth 111 and the communication port 120 are both in communication with the receiving cavity 110, so that the front end of the down lamp body 100 is trumpet-shaped.The light source substrate 200 is provided on one side surface with a plurality of light sources 210 that can emit light when powered. A set of or two sets or three sets or multiple sets of clamping assemblies are provided between the light source substrate 200 and the down lamp body 100. Each set of clamping assemblies includes clamping blocks 310 and clamping platforms 320 that can be clamped together. The clamping platforms 320 are provided on the inner wall of the receiving cavity 110, and the clamping blocks 310 are provided on the light source substrate 200. A power supply structure is provided between the light source substrate 200 and the down lamp body 100. The power supply structure includes first and second conductive assemblies 410 and 420 that can be in contact with each other to conduct electricity. The first conductive assembly 410 is provided on the down lamp body 100, and the second conductive assembly 420 is provided on the light source substrate 200.
[0039] The light source substrate 200 of the down lamp of the embodiment is clamped by the clamping assembly between the down lamp body 100, and the light source substrate 200 and the down lamp body 100 are in contact and conduct electricity through the first conductive assembly 410 and the second conductive assembly 420, so that the light source substrate 200 is movably installed inside the accommodating cavity 110, and when the light source substrate 200 rotates relative to the down lamp body 100, the clamping block 310 and the clamping platform 320 can relatively move close and clamp, the first conductive assembly 410 and the second conductive assembly 420 are in contact and conduct electricity, the light source substrate 200 is installed on the down lamp body 100, and the electrical connection between the light source substrate 200 and the down lamp body 100 is completed, when the light source substrate 200 reversely rotates relative to the down lamp body 100, the clamping block 310 and the clamping platform 320 can relatively move apart and unclamp, and the first conductive assembly 410 and the second conductive assembly 420 are separated from each other. Through the above structure, the power supply connection structure between the light source substrate 200 and the down lamp body 100 is more simple and convenient, when the light source needs to be replaced, the light source substrate 200 only needs to be reversely rotated and removed, and then a new light source substrate 200 is replaced, so that the operation is simple and convenient, and the user does not need to replace the down lamp as a whole, so that the cost of the user for maintaining the down lamp is greatly reduced.
[0040] It should be noted that in the above embodiment, the light source substrate 200 is provided with a plurality of light sources 210 capable of emitting light on one side surface. In other embodiments of the present application, the number of light sources 210 provided on one side surface of the light source substrate 200 can also be other, such as one or two or three, and is not limited to the above-mentioned plurality, and can be determined according to actual needs.
[0041] Referring to Figure 4 , Figure 6 , Figure 7 , Figure 8 and Figure 9In order to make the connection between the light source substrate 200 and the down lamp body 100 more firm, in some embodiments of the utility model, a plurality of sets of clamping assemblies are arranged between the light source substrate 200 and the down lamp body 100, the plurality of sets of clamping assemblies are arranged along the inner wall of the accommodating cavity 110 in sequence and at intervals, all the clamping platforms 320 of the plurality of sets of clamping assemblies are arranged along the inner wall of the accommodating cavity 110 in sequence and at intervals, all the clamping blocks 310 of the plurality of sets of clamping assemblies are arranged along the outer peripheral wall of the light source substrate 200 in sequence and at intervals, and a gap 330 capable of accommodating the clamping block 310 is arranged between the two adjacent clamping platforms 320. Specifically, four sets of clamping assemblies are arranged between the light source substrate 200 and the down lamp body 100, the four sets of clamping assemblies are arranged along the inner wall of the accommodating cavity 110 in sequence and at intervals, the four clamping platforms 320 are arranged along the inner wall of the accommodating cavity 110 in sequence and at intervals, the four clamping blocks 310 are arranged along the outer peripheral wall of the light source substrate 200 in sequence and at intervals, and the gap 330 capable of accommodating the clamping block 310 is arranged between the two adjacent clamping platforms 320. When the light source substrate 200 is placed in the accommodating cavity 110 and the four clamping blocks 310 of the light source substrate 200 are correspondingly located in the four gaps 330, the user only needs to drive the light source substrate 200 to rotate relative to the down lamp body 100, so that the four clamping blocks 310 are correspondingly clamped with the four clamping platforms 320, and the first conductive assembly 410 and the second conductive assembly 420 are in contact and conductive. When the user drives the light source substrate 200 to reversely rotate relative to the down lamp body 100, the four clamping blocks 310 are correspondingly disengaged with the four clamping platforms 320, and the first conductive assembly 410 and the second conductive assembly 420 are separated from each other and disconnected. By adopting the above structure, the connection between the light source substrate 200 and the down lamp body 100 can be made more closely, and the conduction between the first conductive assembly 410 and the second conductive assembly 420 can be made more stable.
[0042] In some embodiments of the utility model, each clamping platform 320 is provided with a clamping groove 321 capable of cooperating with the clamping block 310, and one end of the clamping groove 321 is connected with the gap 330; when the light source substrate 200 is located inside the accommodating cavity 110 and the clamping block 310 is correspondingly located in the gap 330, the light source substrate 200 is rotated relative to the down lamp body 100 and the clamping block 310 is embedded in the clamping groove 321, or the light source substrate 200 is reversely rotated relative to the down lamp body 100 and the clamping block 310 is separated from the inside of the clamping groove 321 and located in the gap 330. By adopting the above structure, the clamping block 310 and the clamping platform 320 of each set of clamping assemblies can be conveniently clamped or disengaged.
[0043] In order to avoid the accidental disengagement of the clamping block 310 from the clamping groove 321, in some embodiments of the utility model, the groove depth of the clamping groove 321 gradually decreases along the direction from the one end of the clamping groove 321 close to the notch 330 to the other end, that is, the groove depth of the one end of the clamping groove 321 close to the notch 330 is larger, and the groove depth of the one end of the clamping groove 321 away from the notch 330 is smaller. When the light source substrate 200 rotates relative to the down lamp main body 100 and makes the clamping block 310 embedded in the clamping groove 321, the friction between the clamping block 310 and the clamping groove 321 increases during the movement of the clamping block 310 from the one end of the clamping groove 321 close to the notch 330 to the other end, so that the clamping between the clamping block 310 and the clamping groove 321 is more firm, preventing the accidental disengagement of the clamping block 310 from the clamping groove 321 and releasing the clamping between the clamping block 310 and the clamping platform 320. By adopting the above structure, the clamping between the clamping block 310 and the clamping platform 320 can be more solid and firm.
[0044] In order to make the first conductive component 410 and the second conductive component 420 better contact and conduct electricity, in some embodiments of the utility model, the first conductive component 410 and the second conductive component 420 are arranged on one of the clamping components, specifically, the first conductive component 410 is arranged on the side surface of the clamping platform 320 facing the clamping block 310, and the second conductive component 420 is arranged on the side surface of the clamping block 310 facing the clamping platform 320. When the light source substrate 200 rotates relative to the down lamp main body 100 and makes the clamping block 310 and the clamping platform 320 clamped, the first conductive component 410 and the second conductive component 420 contact and conduct electricity with each other, or when the light source substrate 200 reversely rotates relative to the down lamp main body 100 and makes the clamping block 310 and the clamping platform 320 disengaged, the first conductive component 410 and the second conductive component 420 separate and disconnect the electricity conduction with each other. By adopting the above structure, the contact between the first conductive component 410 and the second conductive component 420 can be more firm, and the electricity conduction between the first conductive component 410 and the second conductive component 420 can be more stable and reliable.
[0045] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 5 , , Figure 6 , Figure 7 , Figure 8 and Figure 12In order to make the light source 210 better drive light, the replaceable light source down lamp further comprises a driving power supply 500 in some embodiments of the utility model, the driving power supply 500 is detachably installed in the down lamp main body 100, and the driving power supply 500 is electrically connected with the first conductive assembly 410. The driving power supply 500 can be electrically connected with the power supply circuit of the outside. By adopting the above structure, the down lamp can drive the light source 210 to light by the driving power supply 500, when the driving power supply 500 is damaged, the user can detach the driving power supply 500 from the down lamp main body 100, and replace the driving power supply 500 alone, which helps to reduce the maintenance cost of the down lamp. Since the driving power supply 500 is a known technology in the art, it will not be described here.
[0046] In some embodiments of the utility model, the male plug 510 and the female plug 520 that can be mutually matched and plugged are arranged between the down lamp main body 100 and the driving power supply 500, one of the male plug 510 and the female plug 520 is electrically connected with the first conductive assembly 410, and the other is electrically connected with the driving power supply 500, and the down lamp main body 100 and the driving power supply 500 are detachably plugged together through the male plug 510 and the female plug 520. Specifically, the male plug 510 is arranged on the down lamp main body 100, and the male plug 510 is electrically connected with the first conductive assembly 410, the female plug 520 is arranged on the driving power supply 500, and the female plug 520 is electrically connected with the driving power supply 500, in the embodiment, the male plug 510 is fixedly arranged on the down lamp main body 100, and the female plug 520 is fixedly arranged on the driving power supply 500. When the driving power supply 500 is installed on the down lamp main body 100 through the matched plugging of the male plug 510 and the female plug 520, the electrical connection between the driving power supply 500 and the first conductive assembly 410 can be realized.
[0047] It should be noted that, in addition to the above structure, the male plug 510 and the female plug 520 can also adopt other structures, such as the male plug 510 being arranged on the driving power supply 500 and being electrically connected with the driving power supply 500, the female plug 520 being arranged on the down lamp main body 100 and being electrically connected with the first conductive assembly 410, and the driving power supply 500 being installed on the down lamp main body 100 through the matched plugging of the male plug 510 and the female plug 520, so as to realize the electrical connection between the driving power supply 500 and the first conductive assembly 410.
[0048] Referring to Figure 4 , Figure 5 , Figure 10 , Figure 11 and Figure 12In order to make the light efficiency of the down lamp of the embodiment higher, the down lamp with replaceable light source further comprises a reflecting cup 600 in some embodiments of the utility model, the reflecting cup 600 is located inside the accommodating cavity 110, and the reflecting cup 600 is installed on the light source substrate 200; the reflecting cup 600 is covered on the outer periphery of all the light sources 210; and the end of the reflecting cup 600 away from the light source substrate 200 is provided with a knob 601. Through the above structure, when the light emitted by the light source 210 is irradiated to the reflecting cup 600, the reflecting cup 600 can reflect the light and emit it to the front end of the down lamp, which helps to improve the light efficiency of the down lamp; and the end of the reflecting cup 600 away from the light source substrate 200 is provided with the knob 601, so that the user can exert force on the knob 601 and drive the reflecting cup 600 to drive the light source substrate 200 to rotate forward or reversely relative to the down lamp main body 100, thereby facilitating the user to disassemble and assemble the light source substrate 200.
[0049] In some embodiments of the utility model, at least one set of connecting structure is arranged between the reflecting cup 600 and the light source substrate 200, the connecting structure comprises a connecting column 610 and a connecting hole 620 connected with each other, the connecting column 610 is arranged on the reflecting cup 600, and the connecting hole 620 is arranged on the light source substrate 200, or the connecting column 610 is arranged on the light source substrate 200, and the connecting hole 620 is arranged on the reflecting cup 600. Through the above structure, the reflecting cup 600 and the light source substrate 200 can be connected through the connecting column 610 and the connecting hole 620, so that the connection between the reflecting cup 600 and the light source substrate 200 is more simple and convenient.
[0050] In order to make the connection between the reflecting cup 600 and the light source substrate 200 more firm, a plurality of sets of connecting structure are arranged between the reflecting cup 600 and the light source substrate 200 in some embodiments of the utility model, and the plurality of sets of connecting structure are arranged along the circumference of the reflecting cup 600 in sequence and at intervals.
[0051] In some embodiments of the utility model, the light outlet of the reflecting cup 600 is provided with a diffusion plate 700, and the rear end of the down lamp main body 100 is provided with a heat sink 800 capable of contacting the light source substrate 200. Through the diffusion plate 700 arranged at the light outlet of the reflecting cup 600, the light emitted by the light source 210 can pass through the diffusion plate 700 and then irradiate to the outside, so that the light emitted by the down lamp of the embodiment is more uniform and is not easy to form glare; and the rear end of the down lamp main body 100 is provided with the heat sink 800, so that the heat sink 800 can dissipate heat for the light source substrate 200, which helps to better dissipate the heat generated when the light source 210 is electrified to emit light to the outside, and helps to protect the light source 210.
[0052] The utility model embodiment makes the detailed explanation in combination with the drawing, but the utility model is not limited to the above -mentioned embodiment, still can make various changes in the knowledge range of ordinary skill in the art person who has possessed under the premise of not departing from the utility model tenet.
Claims
1. A replaceable light source downlight, characterized by, The application relates to a replaceable light source down lamp, which comprises a down lamp body (100) internally provided with a containing cavity (110), a communicating opening (120) being arranged at the rear end of the down lamp body (100) and being communicated with the containing cavity (110), and an open end (111) being arranged at the front end of the containing cavity (110); a light source substrate (200) provided with at least one light source (210) capable of emitting light after being electrified, at least one set of clamping components being arranged between the light source substrate (200) and the down lamp body (100), the clamping components comprising clamping blocks (310) and clamping platforms (320) capable of being clamped with each other, the clamping platforms (320) being arranged on the inner wall of the containing cavity (110), the clamping blocks (310) being arranged on the light source substrate (200), a power supply structure being arranged between the light source substrate (200) and the down lamp body (100), the power supply structure comprising first and second conductive components (410) and (420) capable of being in contact with each other and conducting electricity, the first conductive component (410) being arranged on the down lamp body (100), and the second conductive component (420) being arranged on the light source substrate (200); when the light source substrate (200) is rotatably arranged in the containing cavity (110), the clamping blocks (310) and the clamping platforms (320) can be relatively moved and clamped with each other, and the first and second conductive components (410) and (420) can be in contact with each other and conducting electricity; or when the light source substrate (200) is reversely rotatably arranged in the containing cavity (110), the clamping blocks (310) and the clamping platforms (320) can be relatively moved and separated from each other and the clamping is released, and the first and second conductive components (410) and (420) can be separated from each other.
2. The replaceable light source down lamp according to claim 1, wherein a plurality of sets of the clamping components are arranged between the light source substrate (200) and the down lamp body (100), all the clamping platforms (320) are arranged along the inner wall of the containing cavity (110) at intervals, all the clamping blocks (310) are arranged along the outer peripheral wall of the light source substrate (200) at intervals, and a gap (330) capable of containing the clamping blocks (310) is arranged between two adjacent clamping platforms (320).
3. The replaceable light source down lamp according to claim 2, wherein each clamping platform (320) is provided with a clamping groove (321) capable of being clamped with the clamping blocks (310), and one end of the clamping groove (321) is communicated with the gap (330). The light source substrate (200) is located inside the accommodating cavity (110), and when the clamping block (310) is located in the gap (330), the light source substrate (200) rotates relative to the down lamp body (100) and makes the clamping block (310) embedded in the clamping groove (321), or the light source substrate (200) reversely rotates relative to the down lamp body (100) and makes the clamping block (310) out of the clamping groove (321).
4. The down lamp with replaceable light source according to claim 3, characterized in that: The groove depth of the clamping groove (321) gradually decreases along the direction from one end of the clamping groove (321) close to the gap (330) to the other end.
5. The down lamp with replaceable light source according to claim 1, characterized in that: The first conductive component (410) and the second conductive component (420) are arranged in one set of the clamping components, the first conductive component (410) is arranged on the side surface of the clamping platform (320) facing the clamping block (310), and the second conductive component (420) is arranged on the side surface of the clamping block (310) facing the clamping platform (320); When the light source substrate (200) rotates relative to the down lamp body (100) and makes the clamping block (310) clamped with the clamping platform (320), the first conductive component (410) and the second conductive component (420) are in contact with each other and conduct electricity, Or when the light source substrate (200) reversely rotates relative to the down lamp body (100) and makes the clamping block (310) and the clamping platform (320) unclamped with each other, the first conductive component (410) and the second conductive component (420) are separated from each other.
6. The down lamp with replaceable light source according to any one of claims 1 to 5, characterized in that: Further comprising a driving power supply (500) detachably mounted on the down lamp body (100), and the driving power supply (500) is electrically connected with the first conductive component (410).
7. The down lamp with replaceable light source according to claim 6, characterized in that: The male plug (510) and the female plug (520) capable of being plugged with each other are arranged between the down lamp body (100) and the driving power supply (500), One of the male plug (510) and the female plug (520) is electrically connected with the first conductive component (410), and the other is electrically connected with the driving power supply (500), The down lamp body (100) and the driving power supply (500) are detachably plugged together through the male plug (510) and the female plug (520).
8. The down lamp with replaceable light source according to claim 1, characterized in that: Further comprising a light-reflecting cup (600) which is located inside the accommodating cavity (110) and is mounted on the light source substrate (200), the light-reflecting cup (600) covers the outer periphery of all the light sources (210), and the end of the light-reflecting cup (600) away from the light source substrate (200) is provided with a knob (601).
9. The replaceable light source tube lamp according to claim 8, characterized in that: At least one set of connecting structures is arranged between the light-reflecting cup (600) and the light source substrate (200), the connecting structures comprising connecting columns (610) and connecting holes (620) which are connected to each other, One of the connecting columns (610) and the connecting holes (620) is arranged on the light-reflecting cup (600), and the other is arranged on the light source substrate (200).
10. The replaceable light source tube lamp according to claim 8 or 9, characterized in that: The light outlet of the light-reflecting cup (600) is provided with a diffusion plate (700), and the rear end of the tube lamp body (100) is provided with a heat sink (800) which can contact the light source substrate (200).