An LED bulb lamp

Abstract

The utility model provides a kind of LED bulb, including lamp holder, power board, light source board and lampshade, the lamp holder has a accommodating cavity, the accommodating cavity of the lamp holder is formed with the thread connecting section of helical extension on outer circumferential wall;The two sides of the width direction of power board are protruded with connecting convex part, the accommodating cavity of the lamp holder is inserted into the power board, the connecting convex part of the two sides of power board is matched in the helical recess of thread connecting section respectively, the rotation of power board relative to lamp holder realizes spin in and spin out, the light source board is fixed on the power board, the lampshade covers the light source board and power board and is fixed on the lamp holder;To realize the reliable assembly of entire LED bulb, effectively save cost.

Description

Technical Field

[0001] This utility model relates to the field of lighting fixtures, specifically to an LED bulb lamp. Background Technology

[0002] LED (Light Emitting Diode) is a solid-state semiconductor device that can convert electrical energy into visible light. It can directly convert electricity into light. Compared with ordinary lamps (such as incandescent lamps), LED lights have advantages such as energy saving, long life, good applicability, short response time, and environmental friendliness.

[0003] Existing LED bulbs generally consist of components such as a lamp holder, housing, power board, light source board, and lampshade, with the power board and light source board mounted on the housing. However, as businesses grow, it becomes necessary to effectively reduce costs without compromising product performance (such as luminous efficacy); therefore, it is essential to implement effective cost reductions on existing LED bulbs. Utility Model Content

[0004] Therefore, this utility model provides an LED bulb lamp that saves on the housing portion based on the existing LED bulb lamp structure, while still maintaining a stable connection between the power board and the light source board.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows: An LED bulb includes: a lamp holder, a power board, a light source board, and a lamp cover. The lamp holder has a receiving cavity, and a spirally extending threaded connection section is formed on the outer peripheral wall of the receiving cavity. The lamp holder, the power board, and the light source board are electrically connected in sequence. The power board has connecting protrusions on both sides in the width direction. The power board is inserted into the receiving cavity of the lamp holder. The connecting protrusions on both sides of the power board respectively fit into the spiral recesses of the threaded connection section. The power board can be screwed in and out by rotating relative to the lamp holder. The light source board is fixed on the power board. The lamp cover covers the light source board and the power board and is fixed on the lamp holder.

[0006] Furthermore, the connecting protrusion of the power board is an arc-shaped protrusion.

[0007] Furthermore, the threaded cross-section of the threaded connection section of the lamp holder has an arc-shaped structure.

[0008] Furthermore, the power board and the light source board are fixed together by a snap-fit ​​connection.

[0009] Furthermore, the top of the power board has a vertically arranged L-shaped connector, which includes a vertically arranged vertical part and a horizontal part that connects to the top of the vertical part and extends laterally; the distance between the horizontal part and the upper surface of the power board is adapted to the thickness of the light source board; the light source board is snapped between the horizontal part and the upper surface of the power board.

[0010] Furthermore, the power board has a first electrical connection pad on the lateral part of the L-shaped connector, and the light source board has a second electrical connection pad on its surface. After the light source board is inserted between the lateral part and the upper surface of the power board, the first electrical connection pad and the second electrical connection pad correspond to each other and are fixed by welding, thereby realizing the electrical connection between the power board and the light source board.

[0011] Furthermore, the light source board is horizontally arranged and has an L-shaped latch. The L-shaped latch includes a horizontal opening and a vertical latch connecting the horizontal opening. The length of the horizontal opening is not less than the length of the horizontal portion of the L-shaped latch. The vertical latch is adapted to the vertical portion of the L-shaped latch. The L-shaped latch passes through the horizontal opening from the bottom of the light source board, so that the horizontal portion of the L-shaped latch protrudes from the surface of the light source board. The vertical portion of the L-shaped latch corresponds to the vertical latch and is engaged in the vertical latch.

[0012] Furthermore, the lateral opening of the L-shaped bayonet is a notch that extends to the outer periphery of the light source board.

[0013] Furthermore, the L-shaped connector and L-shaped bayonet have two sets of mating groups.

[0014] The technical solution provided by this utility model has the following beneficial effects: The LED bulb of this application saves on the housing structure compared to the existing structure. The power board is connected to the spiral recess of the threaded connection section by the connecting protrusions on both sides. The power board rotates relative to the lamp head to achieve screwing in and screwing out, thereby forming a reliable assembly with the lamp head. The light source board is fixed on the power board and the lamp cover is fixed on the lamp head, thereby achieving a reliable assembly of the entire LED bulb and effectively saving costs. Attached Figure Description

[0015] Figure 1 The image shown is a schematic diagram of the appearance of the LED bulb in the embodiment; Figure 2 The diagram shown is an exploded view of the LED bulb structure in the embodiment. Figure 3 The image shown is a cross-sectional view of the LED bulb in the embodiment. Figure 4 The image shown is a partial structural cross-sectional view of the LED bulb in the embodiment; Figure 5 The diagram shown is a structural schematic of the power board in the embodiment. Figure 6 The diagram shown is a schematic representation of the light source board in the embodiment. Detailed Implementation

[0016] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0017] In the description of this utility model, terms such as "upper", "lower", "left", "right", "front", and "rear" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, 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.

[0018] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0019] Reference Figures 1 to 5As shown, this embodiment provides an LED bulb lamp, including: a lamp head 10, a power board 20, a light source board 30, and a lamp cover 40. The lamp head 10 has a receiving cavity, and a spirally extending threaded connection section 11 is formed on the outer peripheral wall of the receiving cavity of the lamp head 10. Specifically, the lamp head 10 is generally cylindrical in shape, and the outer peripheral wall of the lamp head 10 is a thin-walled structure. The threaded connection section 11 is formed by bending the outer peripheral wall of the lamp head 10. The lamp holder 10, power board 20, and light source board 30 are electrically connected in sequence. The power board 20 has connecting protrusions 21 on both sides in its width direction. The power board 20 is inserted into the receiving cavity of the lamp holder 10. The connecting protrusions 21 on both sides of the power board 20 respectively engage with the spiral recesses of the threaded connection section 11, achieving reliable assembly of the power board 20 and the lamp holder 10. That is, without relative rotation between the power board 20 and the lamp holder 10, the power board 20 is locked in the spiral recesses of the threaded connection section 11 by the connecting protrusions 21 on both sides, thus preventing it from being pulled out. The power board 20 rotates relative to the lamp holder 10 to achieve screwing in and screwing out. For example, clockwise rotation of the power board 20 relative to the lamp holder 10 achieves screwing in, and counterclockwise rotation achieves screwing out. The light source board 30 is fixed to the power board 20, and the lamp cover 40 covers the light source board 30 and the power board 20 and is fixed to the lamp holder 10. In this way, reliable assembly of the entire LED bulb is achieved, saving at least the housing portion, effectively reducing costs, and without affecting the overall assembly reliability of the lamp.

[0020] Specifically, the electrical connection between the lamp holder 10 and the power board 20 can be made using conductive wires.

[0021] Specifically, the lamp holder 10 and the lamp cover 40 can be fixedly connected by adhesive bonding or ultrasonic welding.

[0022] Specifically, in this embodiment, the connecting protrusion 21 of the power board 20 is an arc-shaped protrusion, and the threaded cross-section of the threaded connection section 11 of the lamp holder 10 is also an arc-shaped structure. The arc-shaped mating structure provides a smooth, rounded transition, making it less prone to jamming. Furthermore, the arc-shaped threaded cross-section is a commonly used structure in existing lamp holders and can be manufactured using the original production method without modification.

[0023] Furthermore, in this embodiment, the power board 20 and the light source board 30 are fixed together by a snap-fit ​​connection. Specifically, the top of the power board 20 has a vertically arranged L-shaped snap-fit ​​connector 22, which includes a vertically arranged vertical portion 23 and a horizontal portion 24 that connects to the top of the vertical portion 23 and extends laterally. The distance between the horizontal portion 24 and the upper surface of the power board 20 is adapted to the thickness of the light source board 30. The light source board 30 is snapped between the horizontal portion 24 and the upper surface of the power board 20, thus achieving fixation.

[0024] Furthermore, the light source board 30 is horizontally positioned and has an L-shaped latch 33. The L-shaped latch 33 includes a horizontal opening 31 and a vertical latch 32 connecting the horizontal opening 31. The length of the horizontal opening 31 is not less than the length of the horizontal portion 24 of the L-shaped latch 22. The vertical latch 32 is adapted to the vertical portion 23 of the L-shaped latch 22. The L-shaped latch 22 passes through the horizontal opening 31 from the bottom of the light source board 30, so that the horizontal portion 23 of the L-shaped latch 22 protrudes from the surface of the light source board 30. The vertical portion 23 of the L-shaped latch 22 corresponds to the vertical latch 32 and is engaged in the vertical latch 32. That is, after the L-shaped latch 22 passes through the horizontal opening 31, the vertical portion 23 corresponds to the vertical latch 32, and then the L-shaped latch 22 is laterally engaged in the vertical latch 32. The light source board 30 is then engaged between the horizontal portion 24 and the upper surface of the power board 20, thus achieving a snap-fit ​​connection.

[0025] Furthermore, the L-shaped connector 22 of the power board 20 has a first electrical connection pad 25 on its transverse portion 24, and the surface of the light source board 30 has a second electrical connection pad 34. After the light source board 30 is inserted between the transverse portion 24 and the upper surface of the power board 20, the first electrical connection pad 25 and the second electrical connection pad 34 correspond to each other and are fixed by welding, thereby realizing the electrical connection between the power board 20 and the light source board 30. This arrangement not only realizes the electrical connection between the power board 20 and the light source board 30, but also strengthens the fixed assembly of the power board 20 and the light source board 30. Of course, in other embodiments, the electrical connection between the power board 20 and the light source board 30 can also be achieved by using a conductive wire connection.

[0026] Furthermore, the L-shaped snap-fit ​​connector 22 and the L-shaped snap-fit ​​opening 33 have two sets of mating groups, making the snap-fit ​​more reliable. Of course, in other embodiments, a single set of mating groups can also be used.

[0027] Furthermore, the lateral opening 31 of the L-shaped bayonet 33 is a notch extending to the outer periphery of the light source plate 30, which is easy to process. Of course, in other embodiments, the lateral opening 31 of the L-shaped bayonet 33 may also be located in the middle of the light source plate 30.

[0028] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. An LED bulb, comprising: The lamp holder comprises a lamp head, a power board, a light source board, and a lamp cover. The lamp head has a receiving cavity, and a spirally extending threaded connection section is formed on the outer peripheral wall of the receiving cavity. The lamp head, power board, and light source board are electrically connected in sequence. The power board has connecting protrusions on both sides in its width direction. The power board is inserted into the receiving cavity of the lamp head. The connecting protrusions on both sides of the power board respectively engage with the spiral recesses of the threaded connection section. The power board rotates relative to the lamp head to achieve screwing in and out. The light source board is fixed to the power board. The lamp cover covers the light source board and the power board and is fixed to the lamp head.

2. The LED bulb according to claim 1, characterized in that: The connection protrusion of the power board is an arc-shaped protrusion.

3. The LED bulb according to claim 1 or 2, characterized in that: The threaded cross-section of the threaded connection section of the lamp holder has an arc-shaped structure.

4. The LED bulb according to claim 1, characterized in that: The power board and the light source board are fixed together by a snap-fit ​​connection.

5. The LED bulb according to claim 4, characterized in that: The power board has a vertically arranged L-shaped connector at its top. The L-shaped connector includes a vertically arranged vertical part and a horizontal part that connects to the top of the vertical part and extends laterally. The distance between the horizontal part and the upper surface of the power board is adapted to the thickness of the light source board. The light source board is snapped between the horizontal part and the upper surface of the power board.

6. The LED bulb according to claim 5, characterized in that: The power board has a first electrical connection pad on the lateral part of the L-shaped connector, and the light source board has a second electrical connection pad on its surface. After the light source board is inserted between the lateral part and the upper surface of the power board, the first electrical connection pad and the second electrical connection pad correspond to each other and are fixed by welding, thereby realizing the electrical connection between the power board and the light source board.

7. The LED bulb according to claim 5 or 6, characterized in that: The light source board is horizontally positioned and has an L-shaped latch. The L-shaped latch includes a horizontal opening and a vertical latch connecting the horizontal opening. The length of the horizontal opening is not less than the length of the horizontal portion of the L-shaped latch. The vertical latch is adapted to the vertical portion of the L-shaped latch. The L-shaped latch passes through the horizontal opening from the bottom of the light source board, so that the horizontal portion of the L-shaped latch protrudes from the surface of the light source board. The vertical portion of the L-shaped latch corresponds to the vertical latch and is engaged in the vertical latch.

8. The LED bulb according to claim 7, characterized in that: The horizontal opening of the L-shaped bayonet is a notch that extends to the outer periphery of the light source board.

9. The LED bulb according to claim 7, characterized in that: The L-shaped connector and L-shaped bayonet have two sets of mating groups.

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