This application claims priority from Taiwan Patent Application No. 103219899, filed on Nov. 10, 2014, in the Taiwan Intellectual Property Office, the content of which are hereby incorporated by reference in their entirety for all purposes.
1. Field of the Invention
This application relates to a bulb head structure, and more particularly, to a bulb head structure and an LED bulb comprising the same which are applied to the LED bulb.
2. Description of the Related Art
Light emitting diode (LED) enables to transform electrical energy into light energy effectively with a longer service life and lower power consumption, and as a result, it is gradually applied and commonly used in the regular illumination apparatus.
Regarding the conventional application to the LED illumination apparatus, such as bulb, the means of power connection is to connect the power substrate with the bulb's electrode contact to transmit the electric power, and the electric cable is mostly used to connect the power substrate with the bulb's electrode. In the process, however, the electric cable may usually need to be bent owing to the diversity of different working stations, and thus, the electric conductivity thereof may be lowered as the electric cable breaks.
Additionally, in the assembling process of the product, the electric cable has to be fixed on the power substrate and the bulb's electrode contact by soldering so as to accomplish the capability of electrical conductivity adequately, and because the electric cable per se is soft, the cables may need to be managed manually. As a result, the aforementioned situations may result in lower productive efficiency such that the manufacturing process of the product may be unfavorable to automated production.
As described above, inventor of the present invention has been mulling the technical problems over and then designs a bulb head structure and an LED bulb comprising the same which aim at improving the current technique so as to promote the industrial applicability.
In view of the preceding technical problems, the purpose of the present invention is to provide a bulb head structure and an LED bulb comprising the same to resolve the problems of complicated assembling procedure of the exiting LED bulb and is unfavorable to automated production.
According to one purpose of the present invention, a bulb head structure is provided, which may include a hollow-shaped member, an inner insulating member, a substrate, a first flexible electrode member, a second flexible electrode member and a conduction member. The hollow-shaped member may be made of a conductive material, and an outer surface of an end of the hollow-shaped member may have a lampholder connecting part; the inner insulating member may be disposed in the hollow-shaped member and adjacent to the end of the hollow-shaped member; the substrate may be disposed in the in insulating member; the first flexible electrode member may be disposed on a surface of the substrate and adjacent to a side wall of the substrate, and the first flexible electrode member may be in contact with the hollow-shaped member to establish an electrical connection between the hollow-shaped member and the substrate; the second flexible electrode member may be disposed on the surface of the substrate near an end of the substrate and adjacent to the inner insulating member; and the conduction member may be disposed in the inner insulating member, and the second flexible electrode member may be in contact with an end of the conduction member to establish an electrical connection between the conduction member and the substrate.
Preferably, the inner insulating member may be disposed with a substrate-receiving part, and one end of the substrate may be disposed with the second flexible electrode member which may be inserted in the substrate-receiving part.
Preferably, the substrate-receiving part may be arranged as two grooves which may be opposite to each other, and a distance between bottoms of the two grooves may be equal to or slightly smaller than a width of the end of the substrate disposed with the second flexible electrode member.
Preferably, the inner insulating member may have a conduction member receiving part which may be disposed at another end of the inner insulating, another end of the inner insulating member is opposite to the substrate-receiving part, and the conduction member may be inserted or attached to the conduction member receiving part.
Preferably, the first flexible electrode member may have a first contact part that can be elastically deformed subject to applied force, and the first contact part may extend through the side wall of the substrate to contact the hollow-shaped member, a distance between the first non-elastically-deformed contact part and the side wall of the substrate may be larger than a distance between the side wall of the substrate and an inner wall surface of the hollow-shaped member.
Preferably, the second flexible electrode member may have a second contact part that can be elastically deformed subject to applied force, and the second contact part may extend through the end of the substrate to contact the conduction member, a distance between the non-elastically-deformed second contact part and the end of the substrate may be larger than a distance between the end of the substrate and the end of the conduction member.
Preferably, an outer insulating member may be further comprised, which may be adjacent to another end of the hollow-shaped member and may partially cover an outer surface of the hollow-shaped member, and the outer insulating member and the inner insulating member may be disposed on the hollow-shaped member through wrapping by injection manufacturing process.
According to another purpose of the present invention, an LED bulb is provided, which may include a hollow-shaped member, an inner insulating member a substrate, a conduction member and a cover member. The hollow-shaped member which may be a hollow cup-shaped structure made of conductive material, and an outer surface of an end of the hollow-shaped member may have a lampholder connecting part; the inner insulating member may be disposed in the hollow-shaped member and adjacent to the end of the hollow-shaped member; the substrate may be disposed in the inner insulating member and may include a first flexible electrode member and a second flexible electrode member, the first flexible electrode member and the second flexible electrode member may be disposed on a surface of the substrate, wherein the first electrode flexible may be adjacent to a side wall of the substrate to substantially contact with the hollow-shaped member so as to establish an electrical connection between the hollow-shaped member and the substrate, and the second flexible electrode member may be disposed at an end of the substrate adjacent to the inner insulating member; the conduction member may be disposed in the inner insulating member, and the second flexible electrode member may substantially contact with an end of the conduction member so as to establish an electrical connection between the conduction member and the substrate; the cover member may be disposed at another end of the hollow-shaped member, and the cover member may be disposed with an LED module. The LED module may be disposed on a surface of the cover member opposing to the substrate, and the LED module may be electrically connected to the substrate.
Preferably, the inner insulating member may be disposed with a substrate-receiving part, and one end of the substrate disposed with the second flexible electrode member may be inserted in the substrate-receiving part.
Preferably, the substrate-receiving part may be arranged as two grooves which may be opposite to each other, and a distance between bottoms of the two grooves may be equal to or slightly smaller than a width of the end of the substrate disposed with the second flexible electrode member.
Preferably, the inner insulating member may have a conduction member receiving part disposed at an end of the inner insulating member. The end of the inner insulating member may be opposite to the substrate-receiving part, and the conduction member may be inserted or attached to the conduction member receiving part.
Preferably, the first flexible member may have a first contact part that can be elastically deformed subject to applied force, and the first contact part may extend through the side wall of the substrate to contact the hollow-shaped member. A distance between the non-elastically-deformed first contact part and the side wall of the substrate may be larger than a distance between the side wall of the substrate and the inner wall surface of the hollow-shaped member.
Preferably, the second flexible electrode member may have a second contact part that can be elastically deformed subject to applied force, and the second contact part may extend through the end of the substrate to contact the conduction member. A distance between the non-elastically-deformed second contact part and the end of the substrate may be larger than a distance between the end of the substrate and o the end of the conduction member.
Preferably, an outer insulating member may be further comprised, which may be adjacent to another end of the hollow-shaped member and may partially cover an outer surface of the hollow-shaped member, and the outer and the inner insulating members may be disposed on the hollow-shaped member through wrapping by injection manufacturing process.
Preferably, the LED module may be disposed with a connecting unit on the surface of the cover member which may face the substrate, another end of the substrate opposing to the end of the substrate having the second flexible electrode member may be disposed with a conductive part, and the conductive part may be inserted in the connecting unit.
According to the preceding descriptions, a bulb head structure and an LED bulb comprising the same in accordance with the present invention may have one or more advantages as follows.
(1) A bulb head structure and an LED bulb comprising the same in accordance with the present invention utilize the arrangement of a first flexible electrode member and a second flexible electrode member to replace the conventional current-conduction way using electric cables. By means of present invention, the automatical surface mounting technology (SMT) may be applied to a substrate to promote the production efficiency and yield rate.
(2) A bulb head structure and an LEI) bulb comprising the same in accordance with the present invention are configured to directly insert a substrate, a conduction member and a cover member in the corresponding assembly position by means of deposition of a first flexible electrode member and a second flexible electrode member, the production efficiency is thereby increased and automated production is easily to be applied as well.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art to which the present invention pertains can realize the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.
The drawings and description are to be regarded as illustrative in nature and not restrictive. Similar reference numerals designate similar elements throughout the specification.
Please refer to
As shown in
The first flexible electrode member 31 and the second flexible electrode member 32 are flexible members having a certain elastic restoring force, and may be made of conductive materials such as stainless steel, carbon steel and manganese steel and so on. The first flexible electrode member 31 is disposed on the surface of the substrate 30 and adjacent to a side wall of the substrate 30, and the first flexible electrode member 31 may lean against the inner wall surface of the hollow-shaped member 10 so as to substantially contact with the hollow-shaped member 10 (shown in
Furthermore, as shown in
As shown in
Please refer to
When the bulb head structure 1 of the present invention is connected to the lampholder, by using the aforementioned arrangement, it may respectively connect to the positive and negative charges or the negative and positive charges through the lampholder connecting part 11 and the conduction member 40 such that electric power may be obtained and the substrate 30 may thereby enable the LED to emit light. In addition, the conductive connection among each member may be completed instantly after the members are produced, and in the assembling process of the products, wiring and extra operation procedure are unnecessary. It only needs to assemble each member to a combine of the hollow-shaped member 10 and the inner insulating member 20, and as a result, the production efficiency can thereby be increased and is able to be applied to the automated production.
Please refer to
As shown in
Moreover, the cover member 60 is disposed at the other end of the hollow-shaped member 10. Namely, the cover member 60 covers the opening at the other end of the hollow-shaped member 10. Wherein, the cover member 60 may be directly disposed on the opening at the other end of the hollow-shaped member 10 by an interference method. In addition, the cover member 60 may be disposed with an LED module 61 at the surface of the cover member 60 opposing to the substrate 30, and the LED module 61 may be electrically connected to the substrate 30.
How the LED module 61 electrically connects to the substrate 30 will be explained as follows. Please refer to
The LED bulb 100 in accordance with the present invention may be easily applied to the automated production by means of the aforementioned structure. The reason lies in that when assembling the LED bulb 100 of the present invention, extra operations such as welding and wiring are unnecessary, and it only needs to assemble each member to the hollow-shaped member 10 one by one.
To be more precise, firstly, one end of the substrate 30 is directly inserted in the substrate-receiving part 21 of the inner insulating member 20, and at the moment, the first flexible electrode member 31 may lean against the inner wall surface of the hollow-shaped member 10 to enable the hollow-shaped member 10 and the substrate 30 being electrically connected. Afterwards, the cover member 60 may be set on the opening at the other end of the hollow-shaped member 10, and meanwhile, the conductive part 33 of the substrate 30 may be inserted in the connecting unit 611 to enable the substrate 30 and the LED module 61 being electrically connected. Next, the conduction member 40 is inserted or attached in the conduction member receiving part 22 of the inner insulating member 22. Finally, a bulb cover 70 is covered to complete the assembly. When the hollow-shaped member 40 is inserted or attached in the conduction member receiving part 22 of the inner insulating member 22, one end of the conduction member 40 may push the second flexible electrode member 32 such that the conduction member 40 and the substrate 30 may thereby be electrically connected.
What has to be addressed is that the aforementioned assembly is one of the applied aspects used to comprehend the spirit of the present invention, and there are the other assembly subsequences can be found. For example, the conduction member 40 may be disposed firstly, and then the substrate 30 and the cover member 60 may be disposed. Hence, it shall not be subject to this restriction.
As mentioned above, when the LED bulb 100 in accordance with the present invention is assembled step by step, each member is therefore electrically connected one by one such that the amount of members and assembly procedure can be simplified greatly. Because the assembly method is very easy, it can be simply applied to the automated production. Consequently, the LED bulb 100 of the present invention is able to effectively save the manufacturing cost of the product.
While the means of specific embodiments in present invention has been described by reference drawings, numerous modifications and variations could be made thereto by those skilled in the art without departing from the scope and spirit of the invention set forth in the claims. The modifications and variations should in a range limited by the specification of the present invention.
Number | Date | Country | Kind |
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103219899 | Nov 2014 | TW | national |