Lamp panel module and lamp
By partitioning the substrate and rationally arranging the light-emitting devices and power supply devices, the problem of excessively high local temperatures on the substrate after the power supply module is integrated is solved, achieving temperature balance and cost reduction of the lamp board module, and improving heat dissipation performance and lighting effect.
Patent Information
- Application Number
- CN202423232169.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-12-26
AI Technical Summary
The integration of power modules in existing lighting fixtures leads to localized high temperatures on the substrate. Traditional solutions increase the thickness of the lamp body, resulting in high material usage, high costs, and heavy weight.
The substrate is divided into a first zone and a second zone, where light-emitting device groups and power supply device groups are arranged respectively. By rationally arranging the heat generation, the heat generation of each zone is balanced, avoiding local high temperatures.
This achieves temperature uniformity in the lamp panel module, reducing production costs and weight while improving heat dissipation performance and lighting effect.
Smart Images
Figure CN223677671U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to lamp technical field, concretely, it is a kind of lamp panel module and the lamp with the lamp panel module. BACKGROUND
[0002] Lamp includes lamp body, light source module, power module etc., lamp body has accommodating cavity, light source module is installed on the bottom plate of accommodating cavity, power module and light source module are split design and are located in lamp body outside.Light source module includes substrate and light emitting device group, and the multiple light emitting devices of light emitting device group are evenly distributed in the edge of substrate from the middle part of substrate basically in the form of radiation;Wherein, since the bottom plate thickness of existing lamp body is consistent, light emitting device of light source module is evenly distributed on substrate, and power module and light source module are split design, so that the temperature of the area where light emitting device group is distributed on substrate can be kept basically consistent, and the stability of light source module work is ensured.
[0003] And along with the change of market demand, for part lamp, it requires that power module is integrated to light source module, that is, the components of power module are integrated to the substrate of light source module, however, due to the addition of components of power module, the balance of original substrate heat quantity distribution is broken, so that local temperature is higher in the area where each device (including light emitting device and component) on substrate is distributed, and in order to meet the heat dissipation requirement of local high-temperature area, the current method is to uniformly increase the thickness of the bottom plate of lamp body, but this will lead to large amount of lamp body material, and there are problems such as excessive heat dissipation performance in the area where the temperature of light source module is low, accompanied by problems such as large weight of lamp body and high production cost. SUMMARY
[0004] In order to solve the above problems, the main purpose of the utility model is to provide a lamp panel module which is reasonable in layout, and the overall heat quantity of the distribution area of heating device is uniform, which is conducive to reducing production cost and lamp weight.
[0005] Another purpose of the utility model is to provide a lamp with the above lamp panel module.
[0006] In order to realize the main purpose of the utility model, the utility model provides a lamp panel module, which comprises a substrate, wherein a part of the substrate is divided into a first partition, and the remaining part of the substrate is divided into a second partition; the lamp panel module further comprises a first light emitting device group, a second light emitting device group and a power device group, the first light emitting device group is installed on the substrate and located in the first partition, the second light emitting device group and the power device group are both installed on the substrate and located in the second partition, and the first heat quantity of the first light emitting device group is equal to the sum of the second heat quantity of the second light emitting device group and the third heat quantity of the power device group.
[0007] It can be seen from the above that the substrate is divided into a first subarea and a second subarea, and the first light emitting device group and the second light emitting device group with different heat generation amounts are arranged in the first subarea and the second subarea, so that there is a gap in the heat generation amount between the first subarea and the second subarea, and the power device is arranged in the subarea with low heat generation to compensate for the gap in the heat generation amount, so that the heat generation amounts of the first subarea and the second subarea are equal as a whole, thereby balancing the temperature field of the entire lamp panel module; compared with the traditional lamp panel module, since the lamp panel module provided by the utility model has balanced overall temperature, it is not necessary to additionally increase the thickness of the lamp body to solve the heat dissipation problem of local high temperature, thereby effectively reducing the cost of the lamp with the lamp body module and reducing the weight of the lamp.
[0008] Further, the substrate is substantially circular, the first subarea is substantially a first sector, and the second subarea is substantially a second sector.
[0009] It can be seen from the above that the circular substrate is conducive to heat conduction to the peripheral environment, and meanwhile, the circular substrate and the sector subareas are conducive to achieving better light uniformity.
[0010] One preferred scheme is that a part of the second subarea is divided into a first sub-subarea, and the remaining part of the second subarea is divided into a second sub-subarea, the first sub-subarea is a third sector, and the second sub-subarea is substantially a first sector ring; the second light emitting device group is arranged in the first sub-subarea, and the power device group is arranged in the second sub-subarea.
[0011] It can be seen from the above that the second subarea is divided into the third sector first sub-subarea for arranging the second light emitting device group, so that the second light emitting device group and the first light emitting device group can form a more reasonable and regular light emitting area; and the second sub-subarea is divided into the first sector ring for arranging the power device group, so that the power device group can be prevented from being located in the light emitting area, thereby ensuring the lighting effect.
[0012] Further, the first light emitting device group includes a plurality of light emitting devices, and the second light emitting device group includes a plurality of light emitting devices; the overall distribution density of the plurality of light emitting devices of the first light emitting device group in the first subarea is greater than the overall distribution density of the plurality of light emitting devices of the second light emitting device group in the first sub-subarea.
[0013] It can be seen from the above that when the same specification light emitting device is used, the heat generation amount of the first light emitting device group can be different from the heat generation amount of the second light emitting device group, thereby avoiding the imbalance in the heat generation amount between the second subarea and the first subarea after the power device group is arranged in the second subarea.
[0014] Further, a part of the first subregion is divided into a third subregion, and the rest of the first subregion is divided into a fourth subregion, the third subregion is a fourth sector, the third subregion and the first subregion form a circular region, the first group of light emitting devices is located in the third subregion, and the fourth subregion is substantially a second sector ring.
[0015] As can be seen from the above, since the area of the first subregion close to the middle of the substrate is small, the heat dissipation performance is relatively poor, so it is not suitable to distribute too dense light emitting devices, and in order to match the distribution of the second group of light emitting devices, the fourth subregion usually does not set light emitting devices, and the closer to the fourth subregion, the larger the area of the first subregion, so that more dense light emitting devices can be set to ensure that the lighting demand is met while the light emitting devices can be effectively and quickly cooled.
[0016] Further, the plurality of light emitting devices of the first group of light emitting devices are arranged on a plurality of first concentric arcs, the plurality of first concentric arcs are distributed in a ripple shape, the closer to the fourth subregion, the higher the density of the light emitting devices on the first concentric arc; the plurality of light emitting devices of the second group of light emitting devices are arranged on a plurality of second concentric arcs, the plurality of second concentric arcs are distributed in a ripple shape, the plurality of second concentric arcs correspond to the plurality of first concentric arcs one by one, and the second concentric arc and the corresponding first concentric arc form a circle.
[0017] As can be seen from the above, this design helps to improve the light uniformity of the lamp panel module, ensures the lighting effect of the lamp panel module, and at the same time, a channel can be formed between the two concentric arcs for air circulation, thereby facilitating heat dissipation of the light emitting devices, avoiding heat accumulation and easy dissipation, thereby effectively reducing the thermal resistance of the light emitting devices.
[0018] Further, the substrate is provided with a avoiding gap in the fourth subregion, and the avoiding gap penetrates the substrate; the substrate is provided with a connecting hole in the first subregion and / or the second subregion, and the connecting hole penetrates the substrate.
[0019] As can be seen from the above, since the fourth subregion does not set light emitting devices, the avoiding gap for avoiding the cable connected with the power device group is the most suitable, which is beneficial to simplify the structure of the lamp body provided with the lamp body module, so that the lamp body does not need to additionally set an avoiding channel for the cable to be routed and avoided, and helps to reduce the volume of the lamp body; the connecting hole can be connected with the lamp body by cooperating with the connecting piece (such as a bolt), and then the lamp panel module is installed on the lamp body.
[0020] Another preferred scheme is that the second central angle of the second sector is 1.25 to 2.6 times the first central angle of the first sector.
[0021] From the above, the central angle of the first sector and the second sector can be adjusted according to the number of the power device group, the heat generation characteristics, the layout requirement between the devices, the safety specification requirement, and meanwhile, the difference between the heat generation of the first light emitting device group in the first partition and the heat generation of the second light emitting device in the second partition is equal to the heat generation of the power device group, so as to ensure the heat generation balance of the first partition and the second partition.
[0022] Further, the substrate is an aluminum substrate or a ceramic substrate.
[0023] From the above, the aluminum substrate or the ceramic substrate as the substrate of the lamp plate module is helpful to the heat dissipation and heat conduction of the components.
[0024] In order to achieve the main purpose of the present application, the present application provides a lamp, which comprises a lamp body, the lamp body has a containing cavity, and further comprises the lamp plate module mentioned above, and the lamp plate module is installed in the containing cavity.
[0025] From the above, the lamp plate module is provided, so that the lamp has light weight, low cost and good heat dissipation effect. BRIEF DESCRIPTION OF DRAWINGS
[0026] Figure 1 is a structural schematic view of the substrate of the lamp plate module embodiment of the present application in a circular shape.
[0027] Figure 2 is a disassembled schematic view of the first partition and the second partition of the substrate of the lamp plate module embodiment of the present application in a circular shape.
[0028] Figure 3 is a temperature distribution pseudo-color graph of the lamp plate module under certain power when the substrate is in a circular shape.
[0029] Figure 4 is a temperature distribution pseudo-color graph of the lamp plate module under the same power when the substrate is in a circular shape.
[0030] Figure 5 is a structural schematic view of the substrate of the lamp plate module embodiment of the present application in a rectangular shape.
[0031] The present application will be further described below in combination with the drawings and embodiments. DETAILED DESCRIPTION
[0032] Lamp plate module embodiment
[0033] Referring to Figure 1 , the lamp plate module 100 comprises a substrate 1, a first light emitting device group 2, a second light emitting device group 3 and a power device group 4.
[0034] In combination with Figure 2A portion of substrate 1 is divided into a first partition 11, and the remaining portion of substrate 1 is divided into a second partition 12. A first light-emitting device group 2 is mounted on substrate 1 and located within the first partition 11. A second light-emitting device group 3 is mounted on substrate 1 and located within the second partition 12. A power supply device group 4 is mounted on substrate 1 and also located within the second partition 12. When the power supply device group 4 operates, it generates a third heat. Based on the heat generation of this third heat, the first partition 11 and the second partition 12 are divided such that the difference between the first heat generation of the first light-emitting device group 2 in the first partition 11 and the second heat generation of the second light-emitting device group 3 in the second partition 12 equals the third heat generation of the power supply device group 4. Therefore, the first heat generation equals the sum of the second and third heat generation. It can be understood that the first partition 11 and the second partition 12 refer to different areas on substrate 1, which is essentially a single, complete board.
[0035] By dividing the substrate 1 into a first partition 11 and a second partition 12, and rationally arranging the distribution of the first light-emitting device group 2, the second light-emitting device group 3, and the power supply device group 4, the heat generated by the first light-emitting device group 2 is equal to the sum of the heat generated by the second light-emitting device group 3 and the power supply device group 4. This avoids heat concentration in a certain area and helps to balance the temperature field of the entire lamp board module 100. Understandably, in traditional lamp board modules without this partition design and heat balance arrangement, the temperature of the area near the power supply device group 4 is too high, while the temperature of the light-emitting device area far from the power supply device is low. This results in different degrees of thermal expansion of the materials in different areas, affecting the stability and service life of the lamp board module 100. This design can effectively reduce the adverse effects caused by uneven temperature.
[0036] like Figure 3 and Figure 4 As shown, Figure 3 This is a pseudo-color diagram showing the temperature distribution of the non-zoned balanced devices (including the light-emitting devices of the light-emitting device group and the components of the power supply device group 4) in a conventional lamp board module at a certain power level when generating heat. Figure 4 This shows a pseudo-color diagram of the temperature distribution of the lamp panel module 100 of this invention after the heat generated by the partition balancing function device at the same power; from Figure 3 and Figure 4 As can be seen, the center temperature of this lamp board module 100, the temperature of the power device group 4 distribution area, and even the overall temperature of the lamp board module 100 are about 5°C lower than the corresponding area temperature of a traditional lamp board module. The heat dissipation performance is significantly improved. In addition, the overall temperature field of this lamp board module 100 is more balanced than that of a traditional lamp board module, with a small temperature difference between the highest and lowest temperature points, effectively preventing heat from concentrating in a certain area.
[0037] Furthermore, the heat of the lamp panel module 100 is distributed reasonably, the risk of local overheating is reduced, and the occurrence of functional device damage (such as light-emitting device light-emitting efficiency reduction, service life shortening, power device group 4 component performance reduction or even damage, etc.) due to local overheating can be effectively avoided. For example, for some temperature-sensitive light-emitting diodes (LEDs), when the temperature is too high, the electrical properties of the internal semiconductor material will change, causing problems such as light-emitting wavelength shift, light decay, etc. Through the above heat balance design, these electronic devices can be effectively protected, and the service life of the entire lamp panel module 100 is prolonged.
[0038] In the embodiment, the substrate 1 is substantially circular, the first sub-area 11 is substantially a first sector, and the second sub-area 12 is substantially a second sector. The circular substrate 1 helps to conduct heat to the surrounding environment, and at the same time, the circular substrate 1 and the sector sub-areas help to achieve better light uniformity. In addition, the sector sub-areas provide flexibility for the layout of the devices, so that the size of the first sector and the second sector can be adjusted according to the actual size and heat generation of the first light-emitting device group 2, the second light-emitting device group 3, and the power device group 4. Furthermore, the edge shape of the circular substrate 1 is conducive to heat dissipation. In the case of natural convection heat dissipation, heat will be conducted from the surface of the substrate 1 to the surrounding environment. Since the edge of the circle has no sharp corners, the heat flow is relatively uniform at the edge, and there is no situation of poor heat dissipation due to heat accumulation as in the case of a rectangular substrate 1. Moreover, the sector sub-areas can adjust the positions of the devices according to the amount of heat generated. For example, the device group or the device distribution with larger heat generation or larger density is placed closer to the edge of the substrate 1, and a larger heat dissipation area is used to improve the heat dissipation efficiency, further optimizing the heat dissipation performance of the entire lamp panel module 100.
[0039] Further, a part of the second sub-area 12 is divided into a first sub-area 121, and the remaining part of the second sub-area 12 is divided into a second sub-area 122; the first sub-area 121 is a third sector, and the second sub-area 122 is substantially a first annular ring, so that the second sub-area 122 is arranged outside the outer arc edge of the first sub-area 121. The second light-emitting device group 3 is arranged in the first sub-area 121, and the power device group 4 is arranged in the second sub-area 122.
[0040] Firstly, the second light emitting device group 3 is arranged in the first sub-division 121, so that the second light emitting device group 3 is arranged closer to the middle of the substrate 1, to form a more reasonable, regular and concentrated light emitting area with the first light emitting device group 2, to avoid the components of the power device group 4 from blocking the light emitted by the light emitting devices, to ensure that the lamp panel module 100 achieves more uniform and reasonable light distribution in the circumferential direction and the radial direction, so as to achieve better lighting effect. Secondly, the heat generation of a single component of the power device group 4 is usually higher than that of the light emitting device, and since the second sub-division 122 in the form of a first fan ring is away from the middle of the substrate 1, it has a larger distribution space for the power device group 4, so that the components of the power device group 4 can be distributed at a larger spacing, which is more conducive to heat dissipation of the power device group 4. Thirdly, since the power device group 4 is closer to the edge of the substrate 1, it better utilizes the edge portion of the substrate 1 in contact with the external environment, improving the cooling efficiency of the power device group 4, to avoid the heat of the power device group 4 affecting the stable operation of the second light emitting device group 3. In addition, the first light emitting device group 2, the second light emitting device group 3 and the power device group 4 are partitioned and arranged, and the power device group 4 is arranged outside the second light emitting device group 3, which not only balances the heat generation, but also helps to reduce electromagnetic interference; because some components of the power device group 4 will produce electromagnetic interference during operation, and reasonable partition layout can keep a certain distance between the light emitting device group and these components, reducing the influence of electromagnetic interference on the light emitting device. For example, when the electromagnetic interference generated by these components propagates to the light emitting device, it may cause the light emitting device to flicker, brightness instability and other problems. It can be seen that through the above partition and heat balance design, the electrical stability of the lamp panel module 100 can also be improved, so that the light emitting is more stable.
[0041] In the embodiment, the light emitting devices of the first light emitting device group 2 and the second light emitting device group 3 are consistent, that is, the first light emitting device group 2 includes a plurality of light emitting devices, and the second light emitting device group 3 also includes a plurality of light emitting devices; wherein the number of light emitting devices of the first light emitting device group 2 can be equal to or different from the number of light emitting devices of the second light emitting device group 3. Furthermore, the overall distribution density of the plurality of light emitting devices of the first light emitting device group 2 in the first division 11 is greater than the overall distribution density of the plurality of light emitting devices of the second light emitting device group 3 in the first sub-division 121. This design enables the heat generation of the first light emitting device group 2 to be different from the heat generation of the second light emitting device group 3 when the same specification light emitting devices are used, thereby avoiding the heat generation imbalance between the second division 12 and the first division 11 after the power device group 4 is arranged in the second division 12.
[0042] Further, a part of the first partition 11 can be divided into a third sub-partition 111, and the rest of the first partition 11 is divided into a fourth sub-partition 112; wherein the third sub-partition 111 is in the shape of a fourth sector, the third sub-partition 111 and the first sub-partition 121 form a circular area, the first light emitting device group 2 is located in the third sub-partition 111, and the fourth sub-partition 112 is roughly in the shape of a second sector ring, the fourth sub-partition 112 and the second sub-group form a circular ring area surrounding the periphery of the circular area formed by the third sub-partition 111 and the first sub-partition 121. Since the area of the first partition 11 near the middle of the substrate 1 is small, the heat dissipation performance is relatively poor, so it is not suitable to distribute too dense light emitting devices, and in order to match the distribution of the second light emitting device group 3, the fourth sub-partition 112 usually does not set light emitting devices, and the closer to the fourth sub-partition 112, the larger the area of the first partition 11 is, so that relatively dense light emitting devices can be set, ensuring that the lighting needs are met while the light emitting devices can also be effectively and quickly cooled. In addition, the fourth sub-partition 112 in the shape of a sector ring can provide more favorable conditions for the heat dissipation of the light emitting devices densely distributed near itself, because the fourth sub-partition 112 in the shape of a sector ring is equivalent to increasing the contact area between the third sub-partition 111 and the surrounding environment, which is conducive to the faster dissipation of heat through conduction, convection and other ways, avoiding excessive concentration of heat in a local area, thereby improving the heat dissipation efficiency of the entire lamp body module 100 and prolonging the service life of the light emitting devices. Furthermore, the fourth sub-partition 112 can be used as a functional area, for example, an avoidance gap 1121 can be provided in the fourth sub-partition 112, the avoidance gap 1121 penetrates the substrate 1, because the fourth sub-partition 112 does not set light emitting devices, so it is most suitable to set the avoidance gap 1121 for avoiding the cable electrically connected with the power device group 4, which is conducive to simplifying the structure of the lamp body provided with the lamp body module, so that the lamp body does not need to additionally set an avoidance channel for the cable to be laid and avoided, and helps to reduce the volume of the lamp body.
[0043] Further, the plurality of light emitting devices of the first light emitting device group 2 are arranged on a plurality of first concentric arcs, and the plurality of first concentric arcs are distributed in a ripple shape; wherein, the closer to the first concentric arc of the fourth sub-area 112, the higher the density of the light emitting device distribution. The plurality of light emitting devices of the second light emitting device group 3 are arranged on a plurality of second concentric arcs, and the plurality of second concentric arcs are distributed in a ripple shape; preferably, the plurality of second concentric arcs correspond to the plurality of first concentric arcs one by one, and the second concentric arc and the corresponding first concentric arc form a circle. This design helps to improve the light uniformity of the lamp panel module 100, ensures the lighting effect of the lamp panel module 100, and at the same time, the passage between the two concentric arcs can also be formed to circulate the air, thereby facilitating the heat dissipation of the light emitting device, avoiding the accumulation of heat together and not easy to dissipate, thereby effectively reducing the thermal resistance of the light emitting device. Since the area of the sector near the middle of the substrate 1 is relatively small, the distribution interval of the light emitting device on the first concentric arc near the middle of the substrate 1 can be equal to the distribution interval of the light emitting device on the corresponding second concentric arc. It can be understood that the plurality of light emitting devices of the first light emitting device group 2 in the third sub-area 111 can be unevenly densely distributed, that is, the distribution density of the light emitting device in a part of the third sub-area 111 is greater than the distribution density of the light emitting device in the first sub-area 121, and the distribution density of the light emitting device in the part is also greater than the distribution density of the light emitting device in the remaining part of the third sub-area 111.
[0044] In addition, the substrate 1 is provided with a connecting hole 13 in the first area 11 and / or the second area 12, the connecting hole 13 penetrates the substrate 1, the connecting hole 13 can be connected with the lamp body by cooperating with the connecting piece (such as a bolt), thereby installing the lamp panel module 100 on the lamp body, and the design of the connecting hole 13 can avoid the need for on-site hole processing of the substrate 1 when the lamp panel module 100 is connected with the lamp body, preventing the circuit arranged on the substrate 1 from being damaged due to self-hole processing.
[0045] In some embodiments, the second central angle b of the second sector is 1.25 to 2.6 times the first central angle a of the first sector; it can be seen that the central angles of the first sector and the second sector can be adjusted according to the number of devices, the heat dissipation characteristics, the layout requirements between devices, and the safety specification requirements of the power device group 4, while ensuring that the heat dissipation of the first light emitting device group 2 in the first area 11 and the heat dissipation of the second light emitting device group 3 in the second area 12 are equal to the heat dissipation of the power device group 4, so as to ensure the heat dissipation balance of the first area 11 and the second area 12.
[0046] In some embodiments, the substrate 1 is an aluminum substrate; in some embodiments, the substrate 1 can also be a ceramic substrate. Using an aluminum substrate or a ceramic substrate as the substrate 1 of the lamp panel module 100 helps to dissipate heat and conduct heat for each component.
[0047] As Figure 5 shown, in some embodiments, the substrate 1 can also be rectangular, and the corresponding first partition 11 (including the third sub-partition 111 and the fourth sub-partition 112) and the second partition 12 (including the first sub-partition 121 and the second sub-partition 122) can be arranged as shown, and thus will not be described here. It can be understood that whether the substrate 1 is circular, rectangular, polygonal (such as pentagonal, hexagonal, …, N-gon, etc.), it can be arranged according to the above design idea; the present embodiment is used to illustrate the design idea of the present application, and does not limit the shape and structure of the lamp panel module 100.
[0048] Due to the partitioning and heat balance design of the lamp panel module 100, compared with the traditional lamp panel module, the material of the lamp body can be more saved, for example, the lamp body does not need to be thickened as a whole to cope with the local high temperature problem of the traditional lamp panel module, and the number of heat dissipation fins on the lamp body can also be appropriately reduced, thereby effectively reducing the weight and cost of the lamp body.
[0049] As can be seen from the above, through the design of the lamp panel module 100, the layout is reasonable, and the overall heat generation of the heat generating device distribution area is uniform, which can reduce the production cost and the weight of the lamp.
[0050] Lamp embodiment
[0051] The lamp comprises a lamp body and the lamp panel module described in the above lamp panel module embodiment, and the lamp body has a receiving cavity, and the lamp panel module is installed in the receiving cavity. The lamp has the advantages of light weight, low cost and good heat dissipation effect by arranging the above lamp panel module.
[0052] Finally, it should be emphasized that the above description is only the preferred embodiment of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. A lamp panel module, comprising a substrate, characterized in that: a portion of the substrate is divided into a first sub-region, and a remaining portion of the substrate is divided into a second sub-region; the lamp panel module further comprises a first light emitting device group, a second light emitting device group and a power supply device group, the first light emitting device group is mounted on the substrate and located in the first sub-region, the second light emitting device group and the power supply device group are both mounted on the substrate and located in the second sub-region, a first heat generation amount of the first light emitting device group is equal to a sum of a second heat generation amount of the second light emitting device group and a third heat generation amount of the power supply device group. 2.The lamp panel module according to claim 1, characterized in that: the substrate is substantially circular, the first sub-region is substantially a first sector, and the second sub-region is substantially a second sector. 3.The lamp panel module according to claim 2, characterized in that: a portion of the second sub-region is divided into a first sub-sub-region, and a remaining portion of the second sub-region is divided into a second sub-sub-region, the first sub-sub-region is a third sector, and the second sub-sub-region is substantially a first sector ring; the second light emitting device group is located in the first sub-sub-region, and the power supply device group is located in the second sub-sub-region. 4.The lamp panel module according to claim 3, characterized in that: the first light emitting device group comprises a plurality of light emitting devices, and the second light emitting device group comprises a plurality of the light emitting devices; a density of a total distribution of the plurality of light emitting devices of the first light emitting device group in the first sub-region is greater than a density of a total distribution of the plurality of light emitting devices of the second light emitting device group in the first sub-sub-region. 5.The lamp panel module according to claim 4, characterized in that: a portion of the first sub-region is divided into a third sub-sub-region, and a remaining portion of the first sub-region is divided into a fourth sub-sub-region, the third sub-sub-region is a fourth sector, the third sub-sub-region and the first sub-sub-region form a circular region, the first light emitting device group is located in the third sub-sub-region, and the fourth sub-sub-region is substantially a second sector ring. 6.The lamp panel module according to claim 5, characterized in that: the plurality of light emitting devices of the first light emitting device group are arranged on a plurality of first concentric arcs, and the plurality of first concentric arcs are distributed in a ripple shape, a density of the distribution of the light emitting devices is higher on the first concentric arcs closer to the fourth sub-sub-region; the plurality of light emitting devices of the second light emitting device group are arranged on a plurality of second concentric arcs, and the plurality of second concentric arcs are distributed in a ripple shape, the plurality of second concentric arcs correspond to the plurality of first concentric arcs one by one, and the second concentric arcs and the corresponding first concentric arcs form a circle. 7.The lamp panel module according to claim 5, characterized in that: the substrate is provided with a relief gap in the fourth sub-sub-region, and the relief gap penetrates the substrate; the substrate is provided with a connecting hole in the first sub-region and / or the second sub-region, and the connecting hole penetrates the substrate. 8.The lamp panel module according to claim 2, characterized in that: The second central angle of the second sector is 1.25 to 2.6 times the first central angle of the first sector.
9. The lamp panel module according to any one of claims 1 to 8, characterized in that: The substrate is an aluminum substrate or a ceramic substrate.
10. A luminaire comprising a lamp body having a receiving cavity, characterized in that Also included is the lamp panel module according to any one of claims 1 to 9, which is installed in the accommodating cavity.