LED bulb
By introducing positioning steps, elastic protrusions, and reinforcing ribs into the LED bulb, the problem of unstable connection between the lamp head and the lamp housing is solved, achieving stable installation of the lamp head and improved heat dissipation efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-03-10
AI Technical Summary
The connection between the lamp holder and the lamp housing of existing LED bulbs is not stable and is prone to slippage, resulting in poor structural stability during disassembly and assembly.
The design incorporates a positioning step and an elastic protrusion. The lamp head is fitted onto the bottom of the lamp housing and snapped into the positioning step. The elastic protrusion and the slot work together to restrict rotation. The outer flange and reinforcing ribs increase stability, and the heat dissipation efficiency of the components is improved through the heat dissipation inner shell and the mounting step.
It enables a quick and stable connection between the lamp holder and the lamp housing, improving the overall structure's assembly and disassembly efficiency and stability, while also enhancing heat dissipation efficiency.
Smart Images
Figure CN223985076U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a lighting device, and more particularly to an LED bulb. Background Technology
[0002] LED bulbs are commonly used lighting devices. An LED bulb consists of a bulb housing, a bulb base connected to the housing, and LED chips installed inside the housing. During operation, the LED chips emit light. There are various ways to install LED bulbs. For example, the bulb base can be threaded into a lamp holder. However, because current bulb bases use an interference fit with the housing, the connection between the bulb base and housing is prone to slippage when tightened to the lamp holder, making it difficult to securely tighten the bulb base. Alternatively, when removing the bulb base from the lamp holder, it may separate directly from the housing, resulting in poor structural stability during assembly and disassembly. Therefore, there is an urgent need for an LED bulb with better structural stability. Utility Model Content
[0003] The purpose of this utility model is to provide an LED bulb to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.
[0004] The solution to the technical problem of this utility model is:
[0005] An LED bulb includes: a bulb housing with a positioning step on the outer bottom side, the positioning step extending around the bulb housing; a bulb shell connected to the top of the bulb housing; a light source assembly located inside the bulb housing, the light source assembly emitting light toward the bulb shell; and a bulb head fitted onto the outer bottom side of the bulb housing, the top of the bulb head being engaged with the positioning step.
[0006] This technical solution has at least the following beneficial effects: During overall assembly, the bulb is connected to the top of the lamp housing, while the lamp head is fitted onto the positioning step at the bottom of the lamp housing. The positioning step enables quick positioning of the lamp head, and the top of the lamp head is engaged with the positioning step, thereby restricting the relative rotation between the lamp head and the positioning step. During installation, the lamp head is connected to the external lamp holder. When force is applied to the lamp housing to rotate the lamp head, the lamp head is engaged with the positioning step, effectively preventing slippage at the connection between the lamp head and the lamp housing, thus securing the lamp head in the lamp holder. During operation, the light source component installed in the lamp housing emits light through the bulb, thereby achieving the illumination function. By fitting and engaging the lamp head with the positioning step of the lamp housing, the two can be quickly and securely connected, making the overall structure more reliable and thus improving the overall assembly and disassembly efficiency and stability.
[0007] As a further improvement to the above technical solution, the top of the lamp head has an elastic protrusion extending towards the center of the lamp head, and a slot is provided in the positioning step, with the elastic protrusion engaging with the slot. When the lamp head is fitted onto the bottom of the lamp housing, the elastic protrusion elastically deforms under the pressure of the outer wall of the bottom of the lamp housing. When the lamp head is properly fitted into the bottom of the lamp housing, the elastic protrusion is aligned with the slot. At this time, the elastic protrusion elastically recovers and engages with the slot, thereby securing the lamp head to the positioning step. The engagement of the elastic protrusion and the slot restricts the relative rotation between the lamp head and the lamp housing.
[0008] As a further improvement to the above technical solution, a notch is provided at the top of the lamp head, and the elastic protrusion is formed at the position of the lamp head located on the top side of the notch. When the lamp head is fitted onto the bottom of the lamp housing, the compression of the outer wall of the bottom of the lamp housing can cause the elastic protrusion to elastically deform into the notch. At this time, the notch provides clearance for the movement of the elastic protrusion, so that the lamp head can be fitted onto the bottom of the lamp housing more smoothly, thereby improving the efficiency of connecting and assembling the lamp head and the lamp housing.
[0009] As a further improvement to the above technical solution, multiple elastic protrusions are arranged around the lamp head, and slots are respectively provided in the positioning step opposite to the multiple elastic protrusions. When the lamp head is fitted onto the bottom of the lamp housing, the multiple elastic protrusions at the top of the lamp head respectively connect to the multiple slots of the positioning step, thereby forming multiple engagement points between the lamp head and the lamp housing, which can further improve the structural stability of the engagement between the lamp head and the lamp housing.
[0010] As a further improvement to the above technical solution, the top of the lamp head has an outwardly flanged edge formed in a direction away from the center of the lamp head, and the outwardly flanged edge abuts against the inner top side of the positioning step. The outwardly flanged edge extends in a direction away from the center of the lamp head, increasing the horizontal coverage area. When the lamp head is fitted onto the bottom of the lamp housing, the contact area between the top of the lamp head and the positioning step is increased by utilizing the outwardly flanged edge against the inner top side of the positioning step, thereby further improving the stability of the lamp head's relative positioning within the positioning step.
[0011] As a further improvement to the above technical solution, a reinforcing rib is formed at the bottom of the lamp housing, and the reinforcing rib abuts against the inner side of the lamp head. The reinforcing rib provides support on the inner side of the lamp head, which can enhance the structural stability of the lamp head, making it less prone to deformation when subjected to external pressure, and facilitating the stable installation of the lamp head in the lamp holder of the external device.
[0012] As a further improvement to the above technical solution, the bottom end of the bulb has a connecting neck that is concave towards the center of the bulb. A hook is provided on the outer side of the connecting neck, and a retaining rib is connected to the inner top of the lamp housing. The hook engages with the bottom side of the retaining rib. When the bulb and the lamp housing are connected to each other, the concave connecting neck at the bottom of the bulb creates an annular recess at the bottom of the bulb. At this time, the connecting neck is inserted into the lamp housing, and the concave position of the bulb abuts against the top of the lamp housing to prevent the bulb from being over-inserted into the lamp housing. In addition, when the connecting neck is inserted into the lamp housing, the hook on the outer side of the connecting neck passes over the retaining rib on the inner top of the lamp housing and engages with the bottom side of the retaining rib. At this time, the engagement and fixation of the hook and the retaining plate can prevent the bulb from coming out of the top of the lamp housing, thereby realizing the quick connection and fixation of the bulb and the lamp housing.
[0013] As a further improvement to the above technical solution, a heat dissipation inner shell is provided inside the lamp housing, and the light source assembly is connected to the inner side of the heat dissipation inner shell. When the light source assembly is working, its heat is conducted to the heat dissipation inner shell. The heat dissipation inner shell can quickly conduct the heat generated by the light source assembly to the surrounding area, and then dissipate it through the lamp housing. This can improve the heat dissipation efficiency of the light source assembly and help prevent the problem of excessively high local temperature in the lamp housing near the light source assembly.
[0014] As a further improvement to the above technical solution, the light source assembly includes a driver board and a lamp body connected to the top side of the driver board. An installation step is provided on the inner top side of the heat dissipation shell, extending around the heat dissipation shell, and the driver board is located within the installation step. The installation step, formed on the inner top side of the heat dissipation shell for positioning the driver board, allows for quick installation of the driver board within the heat dissipation shell, increasing the contact and support area. When the lamp body operates, light is emitted through the bulb, and the generated heat is conducted to the installation step via the driver board. The heat is then quickly and evenly transferred upwards and downwards at the installation step, achieving both rapid installation of the driver board and further improving the heat dissipation efficiency of the light source assembly.
[0015] As a further improvement to the above technical solution, the drive plate is interference-fitted to the inner side of the mounting step. The outer diameter of the drive plate is larger than the inner diameter of the mounting step, so that the drive plate is tightly pressed into the inner side of the mounting step. The interference fit is used to install the drive plate into the inner side of the mounting step, thereby quickly and stably installing the drive plate into the heat dissipation inner shell. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly explained below. Obviously, the described drawings are only a part of the embodiments of this utility model, and not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.
[0017] Figure 1 This is an overall front view of the present invention.
[0018] Figure 2 yes Figure 1 A schematic diagram of the AA cross-sectional structure.
[0019] Figure 3 yes Figure 2 A magnified view of part B.
[0020] Figure 4 This is a schematic diagram of the lamp housing structure of this utility model.
[0021] In the attached diagram: 100-lamp housing, 110-positioning step, 111-slot, 120-reinforcing rib, 130-heat dissipation inner shell, 131-installation step, 140-connecting rib, 200-bulb shell, 210-connecting neck, 211-hook, 300-lamp head, 310-elastic protrusion, 400-driver board. Detailed Implementation
[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0023] 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 relationship based on the directional or positional relationship 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.
[0024] In the description of this utility model, "several" means one or more, "multiple" means two 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 "first" or "second" is used in the description, it is only for the purpose of distinguishing 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 order of the indicated technical features.
[0025] 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.
[0026] Reference Figure 1 , Figure 2 and Figure 4 An LED bulb includes a bulb housing 100, a bulb shell 200, a light source assembly, and a lamp holder 300. The bulb housing 100 has a positioning step 110 on its bottom outer side, extending around the bulb housing 100. The bulb shell 200 is connected to the top of the bulb housing 100. The light source assembly is located inside the bulb housing 100 and emits light towards the bulb shell 200. The lamp holder 300 is fitted onto the bottom outer side of the bulb housing 100, and its top end is engaged with the positioning step 110.
[0027] As described above, during overall assembly, the bulb shell 200 is connected to the top of the lamp housing 100, while the lamp holder 300 is fitted onto the positioning step 110 at the bottom of the lamp housing 100. The positioning step 110 allows for quick positioning of the lamp holder 300, and the top of the lamp holder 300 is engaged with the positioning step 110, thus restricting the relative rotation between the lamp holder 300 and the positioning step 110. During installation, the lamp holder 300 is connected to the external lamp holder. When force is applied to the lamp housing 100 to rotate the lamp holder 300, the lamp holder 300... The lamp head 300 is snapped into the positioning step 110, effectively preventing slippage at the connection between the lamp head 300 and the lamp housing 100, thus firmly installing the lamp head 300 inside the lamp holder. During operation, the light source component installed inside the lamp housing 100 emits light through the bulb 200 to achieve the illumination function. By fitting and snapping the lamp head 300 into the positioning step 110 of the lamp housing 100, the two can be quickly and firmly connected, making the overall structure more reliable and thus improving the overall assembly and disassembly efficiency and stability.
[0028] There are several ways to engage the top of the lamp head 300 with the positioning step 110. These methods are mainly used to restrict the relative rotation between the lamp head 300 and the lamp housing 100. For example, a locking block is provided on the outer bottom of the lamp housing 100, and a groove is provided on the inner side of the lamp head 300. By engaging the locking block in the groove, the lamp head 300 and the lamp housing 100 can be engaged with each other. In this embodiment, the top of the lamp head 300 has an elastic protrusion 310 extending towards the center of the lamp head 300, and a slot 111 is provided in the positioning step 110. The elastic protrusion 310 is engaged in the slot 111. When the lamp head 300 is fitted onto the bottom of the lamp housing 100, the elastic protrusion 310 is elastically deformed under the pressure of the outer side wall of the bottom of the lamp housing 100. When the lamp head 300 is properly fitted into the bottom of the lamp housing 100, the elastic protrusion 310 is aligned with the slot 111. At this time, the elastic protrusion 310 elastically recovers and is engaged in the slot 111, thereby securing the lamp head 300 to the positioning step 110. The relative rotation between the lamp head 300 and the lamp housing 100 can be restricted by the cooperation between the elastic protrusion 310 and the slot 111.
[0029] The elastic protrusion 310 can be a part of the structure formed during the production of the lamp holder 300. In this embodiment, the elastic protrusion 310 is a part formed after the lamp holder 300 is produced. Specifically, the top of the lamp holder 300 is provided with a notch, and the elastic protrusion 310 is formed on the top side of the lamp holder 300 at the notch. When the lamp holder 300 is fitted onto the bottom of the lamp housing 100, the compression of the outer wall of the bottom of the lamp housing 100 can cause the elastic protrusion 310 to elastically deform into the notch. At this time, the notch provides clearance for the movement of the elastic protrusion 310, so that the lamp holder 300 can be fitted onto the bottom of the lamp housing 100 more smoothly, thereby improving the efficiency of connecting and assembling the lamp holder 300 and the lamp housing 100.
[0030] The number and position of the elastic protrusions 310 correspond to the number and position of the slots 111. There can be one or more elastic protrusions 310. To improve the engagement stability between the lamp head 300 and the lamp housing 100, in this embodiment, multiple elastic protrusions 310 are arranged around the lamp head 300, and slots 111 are respectively provided within the positioning step 110 at positions corresponding to the multiple elastic protrusions 310. When the lamp head 300 is fitted onto the bottom of the lamp housing 100, the multiple elastic protrusions 310 at the top of the lamp head 300 respectively engage with the multiple slots 111 of the positioning step 110, thereby forming multiple engagement points between the lamp head 300 and the lamp housing 100. This further improves the structural stability of the engagement between the lamp head 300 and the lamp housing 100.
[0031] To improve the structural stability of the lamp head 300, in this embodiment, the top of the lamp head 300 has an outwardly flanged edge formed in a direction away from the center of the lamp head 300, and the outwardly flanged edge abuts against the inner top side of the positioning step 110. The outwardly flanged edge extends in a direction away from the center of the lamp head 300, increasing the horizontal coverage area. When the lamp head 300 is fitted onto the bottom of the lamp housing 100, the contact area between the top of the lamp head 300 and the positioning step 110 is increased by utilizing the outwardly flanged edge of the lamp head 300 against the inner top side of the positioning step 110, thereby further improving the stability of the relative positioning of the top of the lamp head 300 within the positioning step 110.
[0032] Because the lamp holder 300 has a hollow internal structure, it is prone to deformation when subjected to excessive external force. This can affect the connection between the lamp holder 300 and the lamp base. To further improve the structural stability of the lamp holder 300, in this embodiment, a reinforcing rib 120 is formed at the bottom end of the lamp housing 100. The reinforcing rib 120 abuts against the inner side of the lamp holder 300. In practical applications, multiple reinforcing ribs 120 can be spaced around the bottom end of the lamp housing 100. The reinforcing rib 120 provides support inside the lamp holder 300, enhancing its structural stability and making it less prone to deformation under external pressure. This facilitates the secure installation of the lamp holder 300 into the lamp base of the external device.
[0033] To facilitate quick connection of the bulb 200 to the lamp housing 100, in this embodiment, the bottom end of the bulb 200 is formed with a connecting neck 210 that is concave towards the center of the bulb 200. A hook 211 is provided on the outer side of the connecting neck 210, and a snap-fit rib 140 is connected to the inner side of the top of the lamp housing 100. The hook 211 snaps into the bottom side of the snap-fit rib 140. When the bulb 200 is connected to the lamp housing 100, the inwardly recessed connecting neck 210 at the bottom of the bulb 200 creates an annular recess at the bottom. At this time, the connecting neck 210 is inserted into the lamp housing 100, and the recessed position of the bulb 200 abuts against the top of the lamp housing 100 to prevent the bulb 200 from being over-inserted into the lamp housing 100. In addition, when the connecting neck 210 is inserted into the lamp housing 100, the hook 211 on the outside of the connecting neck 210 passes over the snap-fit rib 140 on the inner side of the top of the lamp housing 100 and snaps onto the bottom side of the snap-fit rib 140. At this time, the snap-fit fixation between the hook 211 and the snap-fit plate can prevent the bulb 200 from coming out of the top of the lamp housing 100, thereby realizing the quick connection and fixation of the bulb 200 and the lamp housing 100.
[0034] In practical applications, to reduce production costs, the lamp housing 100 is generally made of plastic. However, to ensure effective heat dissipation for the light source component, in this embodiment, a heat dissipation inner shell 130 is provided inside the lamp housing 100. The light source component is connected to the inner side of the heat dissipation inner shell 130. The heat dissipation inner shell 130 can be made of metal, as metal conducts heat quickly and evenly, allowing for rapid transfer of heat from the light source component. When the light source component is operating, its heat is conducted to the heat dissipation inner shell 130. The heat dissipation inner shell 130 then rapidly conducts the heat generated by the light source component to the surrounding area, where it is further dissipated through the lamp housing 100. This improves the heat dissipation efficiency of the light source component and helps prevent localized overheating near the light source component.
[0035] In some embodiments, such as Figure 3 As shown, the light source assembly includes a driver board 400 and a lamp body connected to the top side of the driver board 400. A mounting step 131 is provided on the inner top side of the heat dissipation inner shell 130, extending around the heat dissipation inner shell 130. The driver board 400 is located within the mounting step 131. The mounting step 131, formed on the inner top side of the heat dissipation inner shell 130 for positioning the driver board 400, allows for quick installation of the driver board 400 within the heat dissipation inner shell 130, increasing the contact and support area for the driver board 400. When the lamp body operates, light is emitted through the bulb 200, and the generated heat is conducted through the driver board 400 to the mounting step 131. At the mounting step 131, the heat is quickly and evenly transferred in the vertical direction, achieving both rapid installation of the driver board 400 and further improving the heat dissipation efficiency of the light source assembly.
[0036] There are several ways to fix the drive plate 400 within the mounting step 131. For example, the drive plate 400 can be snapped into the mounting step 131, or it can be locked into the mounting step 131 using screws or other connecting parts. In this embodiment, the drive plate 400 is interference-fitted to the inner side of the mounting step 131. The outer diameter of the drive plate 400 is larger than the inner diameter of the mounting step 131. By pressing the drive plate 400 tightly into the inner side of the mounting step 131 and using the interference fit, the drive plate 400 is installed on the inner side of the mounting step 131, thus quickly and securely installing the drive plate 400 into the heat dissipation inner shell 130.
[0037] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.
Claims
1. An LED light bulb characterized by: The application relates to a lamp, which comprises a lamp shell (100) provided with a positioning step (110) on the outer side of the bottom of the lamp shell (100), a bubble shell (200) connected to the top end of the lamp shell (100), a light source assembly located in the lamp shell (100) and capable of emitting light towards the bubble shell (200), and a lamp head (300) sleeved on the outer side of the bottom of the lamp shell (100) and having the top end clamped on the positioning step (110). The top of the lamp head (300) is provided with elastic protrusions (310) extending towards the center of the lamp head (300), and the positioning step (110) is provided with clamping grooves (111) corresponding to the elastic protrusions (310). The top of the lamp head (300) is provided with a notch, and the elastic protrusions (310) are formed on the position of the lamp head (300) on the top side of the notch. The positioning step (110) is provided with the clamping grooves (111) corresponding to the elastic protrusions (310) respectively. The top end of the lamp head (300) is formed with an everted edge extending away from the center of the lamp head (300), and the everted edge abuts against the top side of the positioning step (110).
2. The LED bulb of claim 1, wherein: The bottom end of the lamp shell (100) is formed with a reinforcing rib (120) abutting against the inner side of the lamp head (300).
3. An LED bulb as claimed in claim 2, wherein: The bottom end of the bubble shell (200) is formed with a connecting neck (210) concave towards the center of the bubble shell (200), and the outer side of the connecting neck (210) is provided with a clamping hook (211); the top inner side of the lamp shell (100) is connected with a clamping rib (140), and the clamping hook (211) is clamped on the bottom side of the clamping rib (140).
4. The LED bulb of claim 2, wherein: The inner side of the lamp shell (100) is provided with a heat-dissipating inner shell (130), and the light source assembly is connected to the inner side of the heat-dissipating inner shell (130).
5. The LED bulb of claim 1, wherein: The light source assembly comprises a driving board (400) and a lamp body connected to the top side of the driving board (400); the top inner side of the heat-dissipating inner shell (130) is provided with a mounting step (131) extending around the heat-dissipating inner shell (130), and the driving board (400) is located in the mounting step (131).
6. The LED bulb of claim 1, wherein: The driving board (400) is connected to the inner side of the mounting step (131) in an interference fit.
7. The LED bulb of claim 1, wherein: 8. The LED bulb of claim 1, wherein: 9. An LED bulb according to claim 8, wherein: 10. The LED bulb of claim 9, wherein: