LED (light-emitting diode) plastic-coated aluminum corn-shaped bulb

Abstract

The utility model discloses an LED (light-emitting diode) plastic-coated aluminum corn-shaped bulb, which comprises a lamp holder, a driving circuit board and a patch soft aluminum-based light source plate, and is characterized in that a lamp groove is arranged in the lamp holder, the driving circuit board is arranged in the lamp groove, the patch soft aluminum-based light source plate is curled into a barrel shape and is arranged on the driving circuit board, a lamp base is arranged on the driving circuit board, and the patch soft aluminum-based light source plate is arranged on the lamp base. And the driving circuit board is fixed with the lamp holder through the lamp base. By means of the structure, the advantages of being simple in structure and assembly, easy to automation, low in cost and good in heat dissipation are achieved.

Description

Technical Field

[0001] The utility model relates to a bulb, in particular to an LED plastic - encapsulated aluminum corn - shaped bulb. Background Art

[0002] LED light - emitting chips have the advantages of high brightness, low heat, long service life and environmental protection, and are widely used in people's lives, including home lighting, screen backlighting and decorative lighting, etc.

[0003] Therefore, the bulbs of current indoor crystal chandeliers also use LED chips as light sources. However, ordinary LED bulbs (models G4, G9) generally use a patch - type flexible circuit board as the light - emitting source, and their installation structure is as follows: including a lamp holder, a cylindrical barrel is provided on the lamp holder, the flexible circuit board is bent into a corresponding cylindrical shape and closely adheres to the cylindrical barrel to form a 360 - degree surrounding light - emitting source, and the driving circuit board is arranged inside the cylindrical barrel.

[0004] However, the above - mentioned structure has some disadvantages:

[0005] 1. Because a patch - type flexible circuit board is used, a cylindrical barrel is needed for support, and the driving circuit board can only be arranged inside the cylindrical barrel. The above - mentioned structure is difficult to install. The space inside the cylindrical barrel is narrow, so it is difficult to install the driving circuit board, and it also takes a long time to paste the flexible circuit board.

[0006] 2. The driving circuit board is arranged inside the cylindrical barrel. Because the overall structure of the bulb is very miniaturized, the space inside the cylindrical barrel is narrow, and the flexible circuit board is also pasted on the outer surface of the cylindrical barrel, resulting in difficult heat dissipation of the driving circuit board;

[0007] 3. The driving circuit board is installed inside the cylindrical barrel, so only soft wires can be used to connect the lamp pins. Manual soldering of the wires is required, which not only increases the assembly difficulty and time, but also cannot achieve mechanized assembly and cannot realize fully - automated production line production.

[0008] Therefore, the applicant has designed an LED plastic - encapsulated aluminum corn - shaped bulb by using a patch - type aluminum substrate to replace the patch - type flexible circuit board to solve the above problems. Content of the Utility Model

[0009] In order to overcome the deficiencies of the prior art, the utility model provides an LED plastic - encapsulated aluminum corn - shaped bulb.

[0010] The technical solution adopted by the utility model to solve its technical problems is:

[0011] LED plastic-encapsulated aluminum corn-shaped bulb, comprising a lamp holder, a driving circuit board and a patch soft aluminum substrate light source board, characterized in that: a lamp slot is provided in the lamp holder, the driving circuit board is arranged in the lamp slot, the patch soft aluminum substrate light source board is curled into a cylindrical shape and installed on the driving circuit board, lamp pins are provided on the driving circuit board, and the driving circuit board is fixed to the lamp holder through the lamp pins.

[0012] A cushion block is provided in the lamp slot, and the driving circuit board is located on the cushion block.

[0013] A lamp base is provided under the lamp holder, a through hole penetrating through the lamp holder and the lamp base is provided in the lamp slot, and the end of the lamp pin passes through the through hole and is bent to be stuck with the lamp base.

[0014] A clamping groove is provided on the side wall of the lamp base, and the end of the lamp pin can be clamped into the clamping groove.

[0015] It further includes a lampshade, an insertion edge is provided at the bottom edge of the lampshade, the insertion edge can be inserted into the lamp slot and the bottom edge of the lampshade can be abutted against the groove wall of the lamp slot for positioning.

[0016] The orifice of the through hole at the bottom of the lamp slot is an elongated hole, and the length of the orifice gradually becomes shorter from the bottom of the lamp slot to the bottom surface of the lamp base.

[0017] The patch soft aluminum substrate light source board is curled into a cylinder and a circular top plate located on the top surface of the cylinder.

[0018] The patch soft aluminum substrate light source board includes a first side plate and a second side plate, both the first side plate and the second side plate are connected to the top plate through a bending part, and both the first side plate and the second side plate are bent into semi-cylindrical shapes, and the cylinder is composed of two such semi-cylinders.

[0019] Two square holes and two circular holes are provided on the driving circuit board, two corresponding T-shaped connecting lugs are provided on the patch soft aluminum substrate light source board, the T-shaped connecting lugs are inserted into the corresponding square holes on the driving circuit board and fixed by welding, and the lamp pins pass through the corresponding circular holes on the driving circuit board and are fixed to the driving circuit board by welding.

[0020] The beneficial effect of the utility model is that the utility model adopts a patch soft aluminum substrate as the light source substrate. Because the patch soft aluminum substrate is a metal soft plate, it does not need support after bending and can maintain its shape by itself. Therefore, there is no need for a cylindrical tube support on the lamp holder. In this way, the driving circuit board has a larger installation space and does not need to be arranged in the cylindrical tube. The driving circuit board can be directly arranged in the lamp trough and the driving circuit board is used as a connecting component. In this way, the patch soft aluminum-based light source board and the lamp pin can be directly connected to the driving circuit board to form a whole. Therefore, the above-mentioned driving circuit board, the patch soft aluminum light source substrate and the lamp pin can be assembled in a plug-in manner, and are fixed to the lamp holder through the lamp pin. Not only are the structure and assembly simple, but also mechanized assembly is easy to achieve and the assembly cost is low. In addition, after the patch soft aluminum-based light source board is curled into a cylindrical shape, the middle is hollow and there is no need to place the driving circuit board, and the space around the driving circuit board is large to fully dissipate the heat, so the overall heat dissipation is good, thereby improving the service life of the bulb. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 It is the overall structure diagram of the utility model;

[0023] Figure 2 This is the overall structure diagram of the utility model after removing the lampshade;

[0024] Figure 3 It is an exploded structural diagram of the utility model. DETAILED DESCRIPTION

[0025] The advantages and features of the present disclosure and its implementation methods will be explained by the following embodiments described with reference to the accompanying drawings. However, the present disclosure can be embodied in different forms and should not be interpreted as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure will be comprehensive and complete, and will fully convey the scope of the present disclosure to those skilled in the art. In addition, the present disclosure is limited only by the scope of the claims.

[0026] The shapes, sizes, ratios, angles and numbers disclosed in the drawings for describing the embodiments of the present disclosure are only examples, and therefore the present disclosure is not limited to the details shown. Throughout this specification, the same reference numerals refer to the same elements. In the following description, when the detailed description of the relevant known functions or configurations is determined to be unnecessary to blur the focus of the present disclosure, the detailed description will be omitted. In the case of using "including", "having" and "comprising" described in this specification, other parts may be added unless "only" is used. Unless otherwise indicated, the terms in the singular may include plural forms.

[0027] When interpreting an element, although not explicitly described, the element is understood to include a margin of error.

[0028] When describing a positional relationship, for example, when the positional relationship is described as "on", "above", "below", and "adjacent to", unless "immediately" or "directly" is used, one or more other parts may be arranged between the two other parts.

[0029] When describing a temporal relationship, for example, when the temporal order is described as "after", "subsequently", "next", and "before", unless "exactly" or "directly" is used, discontinuous cases may be included.

[0030] It should be understood that although the terms "first", "second", etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from other elements. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element, without departing from the scope of the present disclosure.

[0031] As can be fully understood by those skilled in the art, the features of different embodiments of the present disclosure may be partially or wholly coupled or combined with each other, and may cooperate with each other in various ways and be technically driven. The embodiments of the present disclosure may be executed independently of each other, or may be executed together in a mutually dependent relationship.

[0032] Referring to Figures 1 to 3 , the present utility model discloses an LED plastic-encased aluminum corn-shaped bulb, including a lamp socket 1, a driving circuit board 5, and a plurality of patch soft aluminum-based light source boards 2. A lamp slot 3 is provided in the lamp socket 1. The lamp socket 1 is generally made of plastic or ceramic, having high hardness and good insulation. The lamp socket 1 of the present application is preferably frustum-shaped, so the lamp slot 3 is also a circular slot. Since the circular area is the largest under the same perimeter, the driving circuit board 5 is arranged in the lamp slot 3. Of course, the shape of the driving circuit board 5 is also a circular board. The patch soft aluminum-based light source board 2 is curled into a cylindrical shape and vertically welded to the driving circuit board 5. Of course, it is preferably a cylindrical shape. Lamp pins 4 are provided on the driving circuit board 5. The lamp pins 4 are made of relatively thick metal wires. The driving circuit board 5 is fixed to the lamp socket 1 through the lamp pins 4. Through the above structure, the advantages of simple structure and assembly, low cost, and good heat dissipation are achieved. Among the above, the patch soft aluminum-based light source board 2 is an existing product, so its specific driving circuit is also an existing technology. The driving circuit is not an improvement point of the present application, so its circuit structure will not be described in detail.

[0033] There are two square holes 14 and two circular holes 15 on the driving circuit board 5. There are two corresponding T-shaped connecting lugs 16 on the patch soft aluminum-based light source board 2. The T-shaped connecting lugs 16 are inserted into the corresponding square holes 14 on the driving circuit board and fixed by welding. The T-shaped connecting lugs 16 play a role in fixing, supporting and connecting between the patch soft aluminum-based light source board 2 and the driving circuit board. The lamp pins 4 pass through the corresponding circular holes 15 on the driving circuit board and are fixed to the driving circuit board by welding. The lamp pins 4 not only play a role in fixing but also achieve electrical connection through welding.

[0034] As shown in the figure, the patch soft aluminum-based light source board 2 is curled into a cylinder and a circular top plate located on the top surface of the cylinder. The cylinder can better achieve uniform 360-degree surrounding light emission. Through the setting of the top plate, light can be emitted from the top surface, thereby expanding the light-emitting range. The specific structure is as follows: The patch soft aluminum-based light source board 2 includes side plate one 12 and side plate two 13. Side plate one 12 and side plate two 13 are rectangular. Both side plate one 12 and side plate two 13 are connected to the top plate through bending parts, and the bending parts are also part of the patch soft aluminum-based light source board 2. And both side plate one 12 and side plate two 13 are bent into semi-cylinders. The cylinder is composed of two such semi-cylinders. The top plate is located in the middle of side plate one 12 and side plate two 13 and is connected through the bending parts. The above-mentioned patch soft aluminum-based light source board 2 can be cut into a planar shape, and then only need to bend side plate one 12 and side plate two 13 into semi-cylinders first, and then side plate one 12 and side plate two 13 are bent relative to the top plate through the bending parts to form a cylinder and the top plate is exactly located on the top surface of the cylinder, which is convenient for processing.

[0035] As shown in the figure, there is a cushion block 7 in the lamp slot 3. The driving circuit board 5 is located on the cushion block 7. In this way, there is a gap between the driving circuit board 5 and the bottom surface of the lamp slot 3 without direct contact, which is convenient for heat dissipation. Moreover, heat dissipation holes are preferably provided on the bottom surface of the lamp slot 3, which further improves the heat dissipation effect. And the diameter of the driving circuit board 5 corresponds to the diameter of the lamp slot 3, so it can be positioned through the lamp slot 3.

[0036] As shown in the figure, a lamp holder 8 is provided under the lamp socket 1. The lamp holder 8 is convenient for plugging into a socket. The structure of the lamp holder 8 is square and it is a ceramic body integrally formed with the lamp socket 1. A through hole 9 penetrating through the lamp socket 1 and the lamp holder 8 is provided in the lamp slot 3. The end of the lamp pin 4 passes through the through hole 9 and is bent into a U shape to be clamped with the lamp holder 8. Through the above structure, the plug-in installation of the lamp pin 4 is realized. Moreover, the end of the lamp pin 4 is exposed outside the plug to be conveniently electrically connected to the socket. And the above bending can be automatically realized by a bending machine after the plug-in installation. Therefore, it is also a structure for realizing the automatic assembly of this product. As a preferred structure, the orifice of the through hole 9 at the bottom of the lamp slot 3 is an elongated hole, and the length of this orifice gradually becomes shorter from the bottom of the lamp slot 3 to the bottom surface of the lamp holder 8. Because the lamp pin 4 of this product is assembled by inserting from the bottom of the lamp slot 3 and then passing out from the bottom surface of the lamp holder 8, the orifice at the bottom of the lamp slot 3 being an elongated hole is convenient for inserting into the orifice during assembly, and then guiding it to pass out from the bottom surface of the lamp holder 8 through the gradual change of the orifice length.

[0037] As a further structure, a clamping groove 10 is provided on the side wall of the lamp holder 8. The end of the lamp pin 4 can be clamped into the clamping groove 10. In this way, the lamp pin 4 can be fixed, and together with the top 6 of the patch soft aluminum base light source board 2, the assembly and fixation of the drive circuit board 5, the patch soft aluminum base light source board 2, and the lamp pin 4 can be realized.

[0038] As shown in the figure, it further includes a transparent lamp cover 11. An insertion edge is provided at the bottom edge of the lamp cover 11. The insertion edge can be inserted into the lamp slot 3 and the bottom edge of the lamp cover 11 can be abutted against the wall of the lamp slot 3 for positioning.

[0039] The above has introduced in detail an LED plastic-encased aluminum corn-shaped light bulb provided by an embodiment of the present invention. Specific examples are used in this article to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. LED plastic-encapsulated aluminum corn-shaped bulb, comprising a lamp holder, a driving circuit board and a patch soft aluminum substrate light source board, characterized in that: A lamp socket is provided with a lamp slot, the drive circuit board is arranged in the lamp slot, the patch soft aluminum base light source board is curled into a cylindrical shape and installed on the drive circuit board, the drive circuit board is provided with lamp pins, and the drive circuit board is fixed to the lamp socket through the lamp pins.

2. The LED plastic-encapsulated aluminum corn-shaped bulb according to claim 1, characterized in that: A cushion block is arranged in the lamp slot, and the drive circuit board is located on the cushion block.

3. The LED plastic-encapsulated aluminum corn-shaped bulb according to claim 1, wherein: A lamp cap is arranged under the lamp socket, a through hole penetrating through the lamp socket and the lamp cap is arranged in the lamp slot, and the end of the lamp pin passes through the through hole and then is bent to be clamped with the lamp cap.

4. The LED plastic-encapsulated aluminum corn-shaped bulb according to claim 3, wherein: A clamping groove is arranged on the side wall of the lamp cap, and the end of the lamp pin can be clamped into the clamping groove.

5. The LED plastic-encapsulated aluminum corn-shaped bulb according to claim 1, wherein: It further includes a lampshade, an insertion edge is arranged at the bottom edge of the lampshade, the insertion edge can be inserted into the lamp slot and the bottom edge of the lampshade can be abutted against the groove wall of the lamp slot for positioning.

6. The LED plastic-encapsulated aluminum corn-shaped bulb according to claim 3, wherein: The orifice of the through hole at the bottom of the lamp slot is an elongated hole, and the length of the orifice gradually becomes shorter from the bottom of the lamp slot to the bottom surface of the lamp cap.

7. The LED plastic-encapsulated aluminum corn-shaped bulb according to claim 1, characterized in that: The patch soft aluminum base light source board is curled into a cylinder and a circular top plate located on the top surface of the cylinder.

8. The LED plastic-encapsulated aluminum corn-shaped bulb according to claim 7, characterized in that: The patch soft aluminum base light source board includes a first side plate and a second side plate, both the first side plate and the second side plate are connected to the top plate through bending parts, and both the first side plate and the second side plate are bent into semi-cylindrical shapes, and the cylinder is composed of two such semi-cylinders.

9. The LED plastic-encapsulated aluminum corn-shaped bulb according to claim 1, characterized in that: Two square holes and two circular holes are arranged on the drive circuit board, two corresponding T-shaped connecting lugs are arranged on the patch soft aluminum base light source board, the T-shaped connecting lugs are inserted into the corresponding square holes on the drive circuit board and fixed by welding, and the lamp pins pass through the corresponding circular holes on the drive circuit board and are fixed to the drive circuit board by welding.

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