Laminated LED light-emitting module and lighting lamp
By using a stacked LED light-emitting module design, and utilizing the gradually increasing annular area and the substrate structure of the first area, the problem of complex structure in existing lighting fixtures is solved, and the beam transformation is simplified, while the cost, volume, and weight are reduced.
Patent Information
- Application Number
- CN202422989521.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-04
AI Technical Summary
Existing lighting fixtures have complex optical structures, resulting in high costs, large size, and heavy weight, making it difficult to meet diverse lighting needs.
A stacked LED light-emitting module is adopted, which consists of several stacked substrates. Each substrate has a first region and an annular region. The orthographic projection of the annular region gradually increases, and the light beam of the LED beads is not blocked, thus realizing the beam transformation.
It simplifies the beam transformation function, reduces cost, and decreases size and weight.
Smart Images
Figure CN223537501U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mobile lighting technology, and in particular to a stacked LED light-emitting module and lighting fixture. Background Technology
[0002] In mobile lighting, to meet more lighting needs, lighting fixtures often feature beam switching capabilities, that is, switching between different beams to satisfy different lighting requirements.
[0003] Currently, in lighting fixtures, there are structures that allow the distance between the lens and the light source to be changed during beam transformation. While these optical structures can transform beams, their complex structure results in high costs and large size and weight for lighting fixtures using this optical mechanism.
[0004] Therefore, existing technologies still need to be improved and developed. Utility Model Content
[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a stacked LED light-emitting module and lighting fixture, so as to solve the problems that although the optical structure of the lighting fixture in the prior art can perform beam transformation, its structure is complex, resulting in high cost, and the lighting fixture using the optical mechanism is large in size and weight.
[0006] The technical solution adopted by this utility model to solve its technical problem is: to provide a stacked LED light-emitting module, including: a plurality of stacked substrates, a first region is provided on one of the substrates, and an annular region is provided on the other substrate, LED beads are provided in the first region, and a plurality of LED beads are provided in each annular region.
[0007] In the orthographic projection of the plurality of substrates on a horizontal plane, the inner contour of the orthographic projection of the annular region on the substrate with the annular region gradually increases from the inside to the outside and is sequentially nested. The orthographic projection of the first region on the substrate with the first region on the horizontal plane is located within the orthographic projection of the innermost annular region on the substrate with the annular region on the horizontal plane. Furthermore, when an LED bead on any substrate is lit, the emitted light beam is not blocked by another substrate, so that when an LED bead on any substrate is lit, a light beam of a corresponding angle is emitted.
[0008] In a further embodiment of this invention, the substrate having the first region is located on top of a plurality of stacked substrates. When the substrate having the first region is located on top of a plurality of stacked substrates, the outer contours of the plurality of substrates gradually decrease from bottom to top. The substrate having the first region is located within an annular region of an adjacent substrate. In two vertically adjacent substrates having annular regions, the substrate at the upper adjacent position is located within an annular region of the substrate at the lower adjacent position.
[0009] In a further embodiment of this invention, the substrate with the first region is located at the bottom of a plurality of stacked substrates. When the substrate with the first region is located at the bottom of a plurality of stacked substrates, each substrate with an annular region has a first through hole penetrating the upper and lower surfaces of the substrate. The first through hole is located within the annular region of the substrate. The projection of the first region on the substrate with the first region onto an adjacent substrate is located within the first through hole on the adjacent substrate. When there are a plurality of substrates with first through holes, the inner contour of the first through holes on the plurality of substrates with first through holes gradually increases from bottom to top, and the projections of the first through holes on the plane of the plurality of substrates with first through holes are sequentially nested. In two substrates with first through holes that are vertically adjacent, the projection of the annular region on the next adjacent substrate onto the previous adjacent substrate is located within the first through hole on the previous adjacent substrate. The projection of the first region on the substrate with the first region onto an adjacent substrate is located within the first through hole on the adjacent substrate.
[0010] In a further embodiment of this invention, thermally conductive adhesive is filled between adjacent substrates, or reflow solder is used to weld adjacent substrates.
[0011] A further feature of this invention is that the distance between any two adjacent LED beads in the clockwise or counterclockwise direction is equal among the plurality of LED beads on the substrate with the annular region.
[0012] In a further embodiment of this invention, both the LED beads in the first region and the LED beads in the annular region are white LED beads, wherein the power of the LED beads in the first region is greater than the power of the LED beads in any of the annular regions.
[0013] A further feature of this invention is that the electrodes on the substrate having the first region are disposed at any position outside the first region on the substrate.
[0014] Electrodes on a substrate having an annular region are positioned at any location outside the annular region on the substrate.
[0015] In a further embodiment of this invention, when the substrate with the first region is located at the bottom of the plurality of substrates, the outer contours of the plurality of substrates gradually increase from bottom to top.
[0016] This utility model also provides a lighting fixture, which includes the stacked LED light-emitting modules as described above.
[0017] Beneficial effects:
[0018] This utility model provides a stacked LED light-emitting module and a lighting fixture. The stacked LED light-emitting module includes: a plurality of stacked substrates, one of the substrates having a first region, and another substrate having an annular region. LED beads are disposed in the first region, and a plurality of LED beads are disposed in each annular region. In the orthographic projection of the plurality of substrates on a horizontal plane, the inner contour of the annular region on the substrate having the annular region gradually increases from the inside to the outside and is sequentially nested. The orthographic projection of the first region on the substrate having the first region is located within the orthographic projection of the innermost annular region on the substrate having the annular region. When an LED bead on any substrate is lit, the emitted light beam is not blocked by another substrate, so that when an LED bead on any substrate is lit, it emits a light beam at a corresponding angle. In this utility model, since the inner contour of the annular region on the horizontal plane of the substrate with the annular region gradually increases from the inside to the outside and is arranged in sequence, the orthogonal projection of the first region on the horizontal plane of the substrate with the first region is located within the orthogonal projection of the innermost annular region on the horizontal plane of the substrate with the annular region. Furthermore, when the LED beads on any substrate are lit, the emitted light beam is not blocked by the other substrate. Therefore, when the LED beads on any substrate of the stacked LED module are lit, a light beam of a corresponding angle is emitted. This enables the lighting fixture to achieve beam transformation through a single LED module, thereby reducing the cost of the lighting fixture and also reducing its size and weight. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0020] Figure 1 This is a structural diagram of the present invention, showing a substrate having a first region disposed on top of several substrates.
[0021] Figure 2 This is a front view of a substrate having a first region disposed on top of several substrates in one embodiment of the present invention.
[0022] Figure 3 This is a top view of a substrate having a first region disposed on top of several substrates in one embodiment of the present invention.
[0023] Figure 4 This is a structural diagram of a substrate having a first region disposed on top of several substrates in one embodiment of the present invention.
[0024] Figure 5 This is a top view of a substrate with a first region disposed on top of several substrates in one embodiment of the present invention.
[0025] Figure 6 This is a top view of a substrate having a first region disposed on a substrate having an annular region on the top of several substrates, according to one embodiment of the present invention.
[0026] Figure 7 This is a structural diagram of a substrate having a first region disposed at the bottom of several substrates in one embodiment of the present invention.
[0027] Figure 8 This is a front view of a substrate having a first region disposed at the bottom of several substrates in one embodiment of the present invention.
[0028] Figure 9 This is a top view of a substrate having a first region disposed at the bottom of several substrates in one embodiment of the present invention.
[0029] Figure 10 This is a top view of a substrate having a first region disposed at the bottom of several substrates in one embodiment of the present invention.
[0030] Figure 11 This is a top view of a substrate having a first region and a plurality of substrates having an annular region at their bottom, as described in one embodiment.
[0031] The markings in the attached diagram are as follows: 101, substrate; 102, LED bead; 103, first through hole. Detailed Implementation
[0032] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or component referred to must have a specific orientation; therefore, they should not be construed as limitations on this utility model.
[0033] like Figure 1 , Figure 2 , Figure 3 , Figure 7 , Figure 8 and Figure 9 As shown, this utility model provides a stacked LED light-emitting module, which may include a plurality of stacked substrates 101. One of the substrates 101 has a first region, and another substrate 101 has an annular region. A plurality of LED beads 102 are disposed in the first region. A plurality of LED beads 102 are disposed in each annular region. In the orthographic projection of the plurality of substrates 101 on the horizontal plane, the inner contour of the annular region on the substrate 101 with the annular region gradually increases from the inside to the outside and is sequentially nested. The orthographic projection of the first region on the substrate 101 with the first region is located within the orthographic projection of the innermost annular region on the substrate 101 with the annular region on the horizontal plane. When an LED bead 102 on any substrate 101 is lit, the emitted light beam is not blocked by another substrate, so that when an LED bead 102 on any substrate 101 is lit, it emits a light beam at a corresponding angle.
[0034] Specifically, when the substrate 101 is configured, it may have two, three, or four layers, etc. Therefore, the specific number of substrates 101 is not specifically limited. When the substrate 101 is configured, it may be configured as a circular plate structure, a square plate structure, or a rhomboid plate structure. Those skilled in the art can determine the specific structure of the substrate 101 according to actual needs.
[0035] In this embodiment, since the inner contour of the annular region on the substrate 101 with the annular region on the horizontal plane gradually increases from the inside to the outside and is sequentially nested, the orthogonal projection of the first region on the substrate 101 with the first region on the horizontal plane is located within the orthogonal projection of the innermost annular region on the substrate 101 with the annular region on the horizontal plane. Furthermore, when the LED beads 102 on any substrate 101 are lit, the light beam emitted is not blocked by the other substrate 101. Therefore, when the LED beads 102 on any substrate 101 of the stacked LED module are lit, a light beam of a corresponding angle is emitted. This enables the lighting fixture to achieve beam transformation through a single LED module, thereby reducing the cost of the lighting fixture, as well as its size and weight.
[0036] Here, the angle at which the LED bead 102 emits a beam of light when it is lit refers to the different angles of the beam emitted when the LED bead 102 on different substrates 101 is lit. The horizontal plane refers to a plane parallel to the upper or lower surface of the substrate.
[0037] In some embodiments, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the substrate 101 with the first region is located on top of a plurality of stacked substrates 101. When the substrate 101 with the first region is located on top of a plurality of stacked substrates 101, the outer contours of the plurality of substrates 101 gradually decrease from bottom to top. The substrate 101 with the first region is located within the annular region of an adjacent substrate 101. In two substrates 101 with annular regions that are arranged vertically adjacent to each other, the substrate 101 at the upper adjacent position is located within the annular region of the substrate 101 at the lower adjacent position.
[0038] When a substrate 101 with a first region is disposed on top of several stacked substrates 101, since the substrate 101 at the previous adjacent position is located within the annular region of the substrate 101 at the next adjacent position, and when an LED bead 102 is disposed on the substrate 101 with the annular region, the LED bead 102 is disposed on the annular region. Therefore, when an LED bead 102 on any substrate 101 with an annular region is lit, it will not be blocked by other substrates 101 with annular regions. Furthermore, because the first region is disposed on the substrate 101 with the first region... When the substrate 101 of the region is set, it is set in the annular region of the adjacent substrate 101 with annular region. Therefore, the substrate 101 with the first region will not block the LED beads 102 on any substrate 101 with annular region when it is lit. The substrate 101 with the first region is located on top of several substrates 101. Therefore, it will not block the LED beads 102 in the first region when it is lit. And when the LED beads 102 on any substrate 101 is lit, it emits a beam of light at a certain angle.
[0039] In some embodiments, such as Figure 7 , Figure 8 , Figure 9 , Figure 10 and Figure 11 As shown, a substrate 101 with a first region is located at the bottom of several stacked substrates 101. When the substrate 101 with the first region is located at the bottom of several stacked substrates 101, each substrate 101 with an annular region has a first through hole 103 penetrating the upper and lower surfaces of the substrate 101. The first through hole 103 is located within the annular region of the substrate 101. The projection of the first region on the substrate 101 with the first region onto the adjacent substrate 101 is located within the first through hole 103 on the adjacent substrate 101. When several substrates 101 have the first through hole 103, the several substrates with... The inner contour of the first through hole 103 on the substrate 101 gradually increases from bottom to top, and the projections of the first through holes 103 on the plane of a plurality of substrates 101 provided with the first through holes 103 are sequentially nested. Among two substrates 101 provided with the first through holes 103 arranged vertically, the projection of the annular region on the substrate 101 at the next adjacent position onto the substrate 101 at the previous adjacent position is located in the first through hole 103 on the substrate 101 at the previous adjacent position. The projection of the first region on the substrate 101 provided with the first region onto the adjacent substrate 101 is located in the first through hole 103 on the adjacent substrate 101.
[0040] When a substrate 101 with a first region is disposed at the bottom of several stacked substrates 101, a first through-hole 103 penetrating the upper and lower surfaces of each substrate 101 with an annular region is formed. The first through-hole 103 is located within the annular region of the substrate 101. When several substrates 101 with annular regions are disposed, the inner contours of the first through-holes 103 on the several substrates 101 with first through-holes 103 gradually increase from bottom to top, and the projections of the first through-holes 103 on the several substrates 101 with first through-holes 103 on the plane are sequentially interlocked. In two adjacent substrates 101 with first through holes 103, the projection of the annular region on the next adjacent substrate 101 onto the previous adjacent substrate 101 is located within the first through hole 103 on the previous adjacent substrate 101. The projection of the first region on the substrate 101 with the first region onto the adjacent substrate 101 is located within the first through hole 103 on the adjacent substrate 101. Therefore, when the LED beads 102 on either substrate 101 are lit, the emitted light will not be blocked, and when the LED beads 102 on either substrate 101 are lit, a beam of light at a certain angle is emitted.
[0041] In this embodiment, when the first through hole 103 is opened, it can be a square hole, a round hole, etc. When the annular region is provided, it can be a circular annular region, a square annular region, a diamond-shaped annular region, etc. When the annular region is provided, the arrangement of the LED beads 102 on the substrate 101 with the annular region needs to be considered; that is, to ensure that the annular region can include the LED beads 102 within its ring. Figure 7 , Figure 9 and Figure 11 In the substrate 101 shown, the annular region can be a regular circular annular region, which is capable of […]. Figure 7 , Figure 9 and Figure 11 The LED beads 102 on the substrate 101 shown are included within the ring. The first region is the region where the LED beads 102 on the substrate 101 are located, as shown in the figure. Figure 7 , Figure 8 , Figure 9 and Figure 10 In the substrate 101 shown, the first region is Figure 7 , Figure 8 , Figure 9 and Figure 10 The area where the LED bead 102 is located is shown.
[0042] It should be noted that the next adjacent substrate 101 refers to the lower substrate 101 among two stacked and adjacent substrates 101; the previous adjacent substrate 101 refers to the upper substrate 101 among two stacked and adjacent substrates 101.
[0043] In one specific embodiment, such as Figure 1 , Figure 2 As shown, the substrate 101 has two layers. The substrate 101 with the first region is disposed on the top of the two substrates 101. An LED bead 102 is disposed on the top substrate 101 (the area where the LED bead 102 is located is the first region). A plurality of LED beads 102 are disposed circumferentially on the top substrate 101 (the annular region formed by the sequential connection of the plurality of LED beads 102 is the aforementioned annular region). Figure 1 , Figure 2 As can be seen, when the LED beads 102 on the substrate 101 with the annular region are lit, the emitted light is not blocked. Similarly, when the LED beads 102 on the substrate 101 with the first region are lit, the light is not blocked. Therefore, when this stacked LED module with two substrates 101 is applied, the beam can be changed by lighting the LED beads 102 on different substrates 101 as needed.
[0044] In another specific embodiment, such as Figure 7 , Figure 8 As shown, the substrate 101 has two layers, and the substrate 101 with the first region is disposed at the bottom of the two substrates 101. Similarly, from Figure 7 , Figure 8 As can be seen, when the LED beads 102 on the substrate 101 with the annular region are lit, the emitted light is not blocked. When the LED beads 102 on the substrate 101 with the first region are lit, the emitted light of the LED beads 102 in the first region is emitted through the first through hole 103 on the adjacent substrate 101, and is also not blocked. Therefore, when using this stacked LED module with two substrates 101, the beam can be changed by lighting the LED beads 102 on different substrates 101 as needed.
[0045] In some embodiments, when connecting adjacent substrates 101, thermally conductive adhesive can be filled between adjacent substrates 101 to bond the two adjacent substrates 101 together; of course, reflow solder can also be used to solder the adjacent substrates 101 together.
[0046] In one specific embodiment, the substrates 101 arranged vertically adjacent to each other are bonded together with thermally conductive adhesive, wherein the thermally conductive adhesive may be, but is not limited to, thermally conductive silver paste.
[0047] In this embodiment, when the adjacent substrates 101 are bonded together with thermally conductive adhesive, the heat generated by the stacked LED module can be transferred from the substrate 101 to the thermally conductive adhesive from top to bottom, and then from the thermally conductive adhesive to the substrate 101, so as to the bottom substrate 101 among the several substrates 101 for heat dissipation.
[0048] In some embodiments, such as Figure 6 , Figure 11 As shown, when LED beads 102 are disposed on a substrate 101 with an annular region, the distance between any two adjacent LED beads 102 in the clockwise or counterclockwise direction among the plurality of LED beads 102 on the substrate 101 with an annular region is equal.
[0049] In this embodiment, the arrangement of equidistant distances between any two adjacent LED beads 102 in either a clockwise or counterclockwise direction makes the substrate 101 more concise and aesthetically pleasing, and results in a more uniform luminous effect when the LED beads 102 in a ring-shaped area are lit.
[0050] In some embodiments, the LED beads 102 in the first region and the LED beads 102 in the annular region are both white LED beads 102, wherein the power of the LED beads 102 in the first region is greater than the power of the LED beads 102 in any annular region.
[0051] When applying this stacked LED light-emitting module, the LED beads 102 in the first region can be positioned at the focal point of the condenser lens or reflector on the lighting fixture. Since the power of the LED beads 102 in the first region is greater than that of the LED beads 102 in any annular region, when it is necessary to illuminate a distant target with a small field of view, the LED beads 102 in the first region can be lit. Because the LED beads 102 in the first region are located at the focal point of the condenser lens or reflector, they form a strong beam of light with a small divergence angle after being lit. When it is necessary to illuminate a target that is closer and has a larger field of view, the LED beads 102 on the substrate 101 with the corresponding annular region can be lit as needed. The lit LED beads 102 will be stacked at a large angle in front after passing through the condenser lens or reflector, illuminating a large area of the scene in front, thereby meeting different lighting application needs.
[0052] In some embodiments, the electrodes on the substrate 101 having the first region are disposed at any position outside the first region on the substrate 101; the electrodes on the substrate 101 having the annular region are disposed at any position outside the annular region on the substrate 101.
[0053] In this embodiment, the electrodes can be positioned at any location on the substrate 101 without affecting the light emission and installation of the LED beads 102. Specifically, when electrodes are set on the substrate 101 with the first region, they can be located on the same side as the LED beads 102 on the substrate 101 with the first region, or they can be located on the opposite side of the LED beads 102 on the substrate 101 with the first region; when electrodes are set on the substrate 101 with the annular region, they can be located on the same side as the LED beads 102 on the substrate 101 with the annular region, or they can be located on the opposite side of the LED beads 102 on the substrate 101 with the annular region. Thus, the electrode setting method is quite flexible, and the electrodes include positive electrodes and negative electrodes.
[0054] In some embodiments, when the substrate 101 in the first region is located at the bottom of a plurality of substrates 101, in order to further save costs and reduce the size and weight of the lighting fixtures using the stacked LED module, the outer contours of the plurality of substrates 101 gradually increase from bottom to top.
[0055] In this embodiment, when the substrate 101 in the first region is located at the bottom of several substrates 101, since the outer contours of several substrates 101 gradually increase from bottom to top, the cost of the stacked LED module is further reduced, and at the same time, the volume and weight are also further reduced.
[0056] In some embodiments, the substrate 101 may be, but is not limited to, a ceramic substrate 101.
[0057] In some embodiments, the present invention also provides a lighting fixture, which includes the aforementioned stacked LED light-emitting module.
[0058] Specifically, the lighting fixture can be either a lighting fixture with a condenser lens or a lighting fixture with a reflector. When the lighting fixture with a condenser lens uses this stacked LED light-emitting module, the LED beads 102 on the substrate 101 with the first region are located at the focal point of the condenser lens or the reflector, while the LED beads 102 on the substrate 101 with the annular region are located in front of or behind the focal plane. When it is necessary to illuminate a distant target with a small field of view, the LED beads 102 in the first region can be lit. (It can be equipped with high-power white LED beads 102). Since the LED beads 102 in the first area are located at the focal point of the condenser lens or reflector, they form a strong beam of light with a small divergence angle after being lit. When it is necessary to illuminate a target that is close to the front and has a large field of view, the LED beads 102 on the substrate 101 with the corresponding annular area are lit as needed. The lit LED beads 102 will be superimposed at a large angle in front after passing through the condenser lens or reflector, illuminating a large area of the scene in front, thereby meeting different lighting application needs.
[0059] Therefore, when this stacked LED module is used in lighting fixtures, the lighting fixture can perform beam transformation (lighting up different LED beads 102 on different substrates 101 as needed) through a single LED module, thereby reducing the cost of the lighting fixture, as well as its size and weight.
[0060] In some embodiments, the present invention also provides a method for fabricating a stacked LED light-emitting module as described above, the method comprising:
[0061] S1. A plurality of substrates are provided, wherein a first region is provided on one of the substrates and an annular region is provided on another substrate among the substrates;
[0062] S2. An LED bead is disposed in the first region on the substrate having the first region;
[0063] S3. A number of LED beads are arranged on the annular area of the substrate with the annular area;
[0064] S4. The substrate with LED beads in the first region and the substrate with LED beads in the annular region are stacked together. Among the orthographic projections of the substrates on the horizontal plane, the inner contour of the annular region on the substrate with the annular region gradually increases from the inside to the outside and are stacked sequentially. The orthographic projection of the first region on the substrate with the first region is located within the orthographic projection of the innermost annular region on the substrate with the annular region. When the LED beads on any substrate are lit, the light beam emitted is not blocked by the other substrate, so that when the LED beads on any substrate are lit, a light beam of a corresponding angle is emitted.
[0065] In this embodiment, LED beads are attached to a substrate, and the location where the LED beads are attached to the substrate is considered the first region. An annular region is set on each of the other substrates. After the annular region is determined, a plurality of LED beads are set on each annular region. Then, the substrate with the first region and the substrate with the annular region are stacked sequentially. Thermally conductive adhesive can be filled between two adjacent substrates to bond the two substrates together, or reflow solder can be used to solder the two adjacent substrates together. The specific method can be determined according to the actual situation.
[0066] When the substrates are stacked, the inner contour of the annular region on the horizontal plane is gradually larger from the inside to the outside and they are stacked in sequence. The orthographic projection of the first region on the horizontal plane is located within the orthographic projection of the innermost annular region on the horizontal plane of the annular region on the substrate with the annular region. When the LED beads on any substrate are lit, the light beam emitted is not blocked by the other substrate.
[0067] When setting the substrate, it can be configured with two, three, or four layers, etc. Therefore, the specific number of substrates is not specifically limited. The substrate can be configured as a circular, square, or rhomboid plate structure, and those skilled in the art can determine the specific structure of the substrate according to actual needs.
[0068] As can be seen, when the LED beads on any substrate of this stacked LED module are lit, they emit a beam of light at a certain angle, enabling the lighting fixture to achieve beam transformation through a single LED module, thereby reducing the cost of the lighting fixture, as well as its size and weight.
[0069] It should be noted that the descriptions of the above embodiments of the lighting fixtures and manufacturing methods are similar to those of the above embodiments of the stacked LED light-emitting module, and have similar beneficial effects. For technical details not disclosed in the embodiments of the lighting fixtures and manufacturing methods, please refer to the description of the embodiments of the stacked LED light-emitting module of this utility model for understanding.
[0070] In summary, this utility model provides a stacked LED light-emitting module and lighting fixture, which has the following beneficial effects:
[0071] Since the inner contour of the annular region on the substrate 101 with the annular region on the horizontal plane gradually increases from the inside to the outside and is arranged in sequence, the orthographic projection of the first region on the substrate 101 with the first region on the horizontal plane is located within the orthographic projection of the innermost annular region on the substrate 101 with the annular region on the horizontal plane. Moreover, when the LED beads 102 on any substrate 101 are lit, the light beam emitted is not blocked by the other substrate 101. Therefore, when the LED beads 102 on any substrate 101 of the stacked LED module are lit, a light beam of a corresponding angle is emitted. This enables the lighting fixture to achieve beam transformation through a single LED module, thereby reducing the cost of the lighting fixture, as well as its size and weight.
[0072] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.
Claims
1. A stacked LED light-emitting module, characterized in that, include: A plurality of substrates are stacked together. A first region is provided on one of the substrates. An annular region is provided on the other substrate. LED beads are provided in the first region. A plurality of LED beads are provided in each annular region. In the orthographic projection of the plurality of substrates on a horizontal plane, the inner contour of the orthographic projection of the annular region on the substrate with the annular region gradually increases from the inside to the outside and is sequentially nested. The orthographic projection of the first region on the substrate with the first region on the horizontal plane is located within the orthographic projection of the innermost annular region on the substrate with the annular region on the horizontal plane. Furthermore, when an LED bead on any substrate is lit, the emitted light beam is not blocked by another substrate, so that when an LED bead on any substrate is lit, a light beam of a corresponding angle is emitted.
2. The stacked LED light-emitting module according to claim 1, characterized in that, The substrate with the first region is located on top of a plurality of stacked substrates. When the substrate with the first region is located on top of a plurality of stacked substrates, the outer contours of the plurality of substrates gradually decrease from bottom to top. The substrate with the first region is located within the annular region of an adjacent substrate. In two substrates with annular regions that are arranged vertically adjacent to each other, the substrate at the upper adjacent position is located within the annular region of the substrate at the lower adjacent position.
3. The stacked LED light-emitting module according to claim 1, characterized in that, The substrate with the first region is located at the bottom of a plurality of stacked substrates. When the substrate with the first region is located at the bottom of a plurality of stacked substrates, each substrate with an annular region has a first through hole penetrating the upper and lower surfaces of the substrate. The first through hole is located within the annular region of the substrate. The projection of the first region on the substrate with the first region onto the adjacent substrate is located within the first through hole on the adjacent substrate. When there are a plurality of substrates with the first through hole, the inner contour of the first through hole on the plurality of substrates with the first through hole gradually increases from bottom to top, and the projections of the first through holes on the plane of the plurality of substrates with the first through hole are sequentially nested. In two substrates with the first through hole that are vertically adjacent to each other, the projection of the annular region on the next adjacent substrate onto the previous adjacent substrate is located within the first through hole on the previous adjacent substrate.
4. The stacked LED light-emitting module according to any one of claims 1-3, characterized in that, Thermally conductive adhesive is used to fill the space between adjacent substrates, or reflow solder is used to solder adjacent substrates.
5. The stacked LED light-emitting module according to claim 2 or 3, characterized in that, The distance between any two adjacent LEDs on a substrate with an annular region is equal in either a clockwise or counterclockwise direction.
6. The stacked LED light-emitting module according to claim 5, characterized in that, Both the LEDs in the first region and the LEDs in the annular region are white LEDs. However, the power of the LEDs in the first region is greater than that of the LEDs in any of the annular regions.
7. The stacked LED light-emitting module according to claim 6, characterized in that, The electrodes on the substrate having the first region are disposed at any position outside the first region on the substrate. Electrodes on a substrate having an annular region are positioned at any location outside the annular region on the substrate.
8. The stacked LED light-emitting module according to claim 3, characterized in that, When the substrate with the first region is located at the bottom of the plurality of substrates, the outer contour of the plurality of substrates gradually increases from bottom to top.
9. A lighting fixture, characterized in that, The lighting fixture includes a stacked LED light-emitting module as described in any one of claims 1-8.