TW201418616A - Dual-component plastic lamp holder for LED light bulb and light bulb assembly having same - Google Patents

Abstract

A dual-component plastic lamp holder for an LED light bulb and a light bulb assembly having the lamp holder are provided, in which the LED light bulb assembly includes the dual-component plastic lamp holder and an LED component. The dual-component plastic lamp holder, which includes an insulating base, a conductive electrode, and a ground electrode, utilizes a dual component injection method to perform injection molding of two plastic materials that have different conductive properties and then to form the conductive electrode and the ground electrode with conductive properties, which are isolated by the insulating base, such that the manufacturing method of the lamp holder can be more simplified with lower cost, and product accuracy can be improved. In particular, an impedance value of a circuit can be controlled by adding a material with a different impedance value in different proportions so as to reduce input voltage in a transmitting process and further dramatically simplify the internal circuit of the LED light bulb.

Description

Double plastic lamp holder for LED bulb and bulb assembly having the same

The invention relates to a double-shot injection-shaped LED lamp holder, in particular to a double-material plastic lamp holder for an LED bulb and a bulb assembly having the same.

For a long time, people used to use tungsten light bulbs and fluorescent lighting, and then the energy-saving bulbs gradually promoted. At present, LED bulbs have high luminous efficiency, fast response speed, no idling time, long service life, and are not easily damaged. The advantages of low power consumption, environmental protection and small size have gradually replaced the market share of traditional light bulbs. However, in the process of various bulb evolution, some standards are still maintained. For example, the lamp holder is still made of a metal shell, and external thread with a specific pitch and radius is formed as a mounting interface, and the sockets are respectively formed with a conduction. The conductive electrode to the external thread and a conductive electrode protruding from the tail end of the lamp holder; while the light bulb is screwed, the conductive electrodes are respectively connected to the two power supply ends of the lamp holder, so that the light bulb can receive the light and emit light.

However, the biggest problem with such a metal lamp holder is that it is necessary to form the metal material by melting or extruding, and to bond it to the front glass case, which is not only time-consuming to manufacture, complicated in operation, but also inaccurate; The quality of the products cannot be improved, and the cost is high, and the waste bulbs are not easy to recycle and do not conform to the environmental trend. Further analysis, since the driving current required for the LED component is direct current, and the voltage is much lower than that of the general socket, it is necessary to additionally provide a rectifier transformer to input the voltage when manufacturing the LED bulb. Rectification and down-conversion to meet the needs of LED bulbs, and even more unnecessarily increase the cost of LED bulbs.

Therefore, how to simplify the manufacturing method of the lamp holder makes the production simpler, the manufacturing cost can be greatly reduced, the output efficiency is improved, and the built-in transformer circuit is not required, and only the general room electric power can be used for driving, regardless of Manufacturers or consumers can benefit in many ways.

An object of the present invention is to provide a double-plastic plastic lamp holder for an LED bulb which is formed by injection molding of a double-material plastic, which does not require stamping of a metal shell, and thus has a simplified lamp holder structure.

Another object of the present invention is to provide a double-plastic plastic lamp holder for an LED bulb which is formed by a plastic material and has an improved overall structural precision.

Still another object of the present invention is to provide a dual-plastic plastic lamp holder for an LED bulb which is simplified in manufacturing process and has improved output efficiency.

A further object of the present invention is to provide a double-shaped plastic lamp holder for an LED bulb that can be directly controlled by using an electrode formed by the lamp holder itself to control its resistance value in advance, so that the voltage flowing through it can be automatically adjusted.

Still another object of the present invention is to provide an LED bulb assembly having a dual-material plastic lamp holder that is simple in construction and inexpensive in cost.

Still another object of the present invention is to provide an LED bulb assembly having a double plastic lamp holder with improved precision and improved product texture.

Still another object of the present invention is to provide an LED bulb assembly having a double-material plastic lamp holder in which the electrode formed by the lamp holder itself can be controlled in advance, and the voltage flowing through it can be automatically adjusted down.

A double plastic lamp holder for an LED bulb according to the present invention comprises: An insulating base formed of a first plastic and having a carrying surface for an LED component and an outer side; one at least partially made of a second plastic and one end exposed to the outer side of the insulating base, and a conductive electrode that passes through the insulating base and exposes the other end thereof to the carrying surface; and an at least partially made of the second plastic, one end exposed to the outer side of the insulating base, and the other end exposed to the carrying surface, And a ground electrode that is insulated from the conductive electrodes.

An LED bulb assembly with a double plastic lamp holder according to the present invention comprises: a double plastic lamp holder, comprising: a bearing formed by a first plastic and having a bearing surface for an LED component and an outer side An insulating base; a conductive electrode at least partially made of a second plastic, one end exposed to the outer side of the insulating base, and the other end of the insulating base being exposed to the carrying surface; and an at least part a grounding electrode made of the second plastic, one end of which is exposed to the outer side of the insulating base, and the other end of which is exposed to the bearing surface and insulated from the conductive electrode; and the LED bulb assembly further includes a insulating layer disposed thereon LED component of the base bearing surface.

The double-material plastic lamp holder for LED bulb manufactured by the invention and the bulb assembly having the lamp holder are formed by a double-material injection molding method, and a plastic lamp holder with a conductive electrode is formed, which further simplifies the manufacturing method of the lamp holder, so that The production is simpler, more efficient, and the use of plastic manufacturing can reduce the cost, and it can be driven by using ordinary room power, without the need to purchase additional transformers, to achieve profitability and ease of use.

1, 1'''‧‧‧ double plastic lamp holder

21”‧‧‧LED dies

12, 12'‧‧‧ Grounding electrode

14’‧‧‧fasteners

151'''‧‧‧ surface

112‧‧‧Outside

1122‧‧‧ bottom

126', 136'‧‧‧ conductive layer

2, 2" ‧ ‧ LED components

11, 11'‧‧‧Insulated base

13, 13'‧‧‧ conductive electrodes

15'''‧‧‧ lampshade

111, 111’‧‧‧ bearing surface

1121‧‧‧Smooth Department

1123‧‧‧External thread

121, 122, 131, 132‧‧‧ end

124', 134'‧‧‧ second plastic layer

31’‧‧‧Card Firmware

3, 3'‧‧‧ shell

5", 6" ‧ ‧ path

1 is a schematic view of a first preferred embodiment of an LED bulb assembly of the present invention; and FIG. 2 is a side view of the LED bulb assembly of FIG. 1; 3 is a schematic view of the other end of the LED light bulb assembly of FIG. 1; FIG. 4 is a second preferred embodiment of the LED light bulb assembly of the present invention, which is a schematic view illustrating the electrical conductivity of the lamp holder by electroplating; FIG. 4 is a side view of the LED bulb assembly of FIG. 4 coupled to the insulating base; FIG. 6 is a third preferred embodiment of the LED bulb assembly of the present invention, illustrating a circuit diagram that utilizes the arrangement direction of the LED dies to form a rectifying architecture; Figure 7 is a fourth preferred embodiment of the LED bulb assembly of the present invention, which is a side view of the dual-material plastic lamp holder and the lamp cover simultaneously ejected and integrally formed.

The foregoing and other objects, features, and advantages of the invention are set forth in the <RTIgt;

The first preferred embodiment of the LED light bulb assembly of the present invention, as shown in FIG. 1 and FIG. 2, comprises a double plastic lamp holder 1, an LED component 2 and a casing 3, wherein the double plastic lamp holder 1 further comprises an insulating base 11, The grounding electrode 12 and the conductive electrode 13 are formed, and the insulating base 11 is made of a non-conductive and transparent plastic material, and the plastic material of the insulating base 11 is defined as a first plastic, and the insulating base 11 has A bearing surface 111 for the LED element 2 and an outer surface 112 for mounting are further divided into a smooth portion 1121, a bottom portion 1122 and an external thread portion 1123, and a male thread portion, for convenience of explanation. 1123 is formed between the smooth portion 1121 and the bottom portion 1122 and is screwable to the power supply position.

In this example, the ground electrode 12 and the conductive electrode 13 are formed by the second plastic, so that the second plastic is electrically conductive, and thus doped with a conductive material, such as doped copper, nickel, tin, aluminum or alloy thereof. The dopants formed and transmitted through the doping ratio can make the grounding electricity The pole 12 and the conductive electrode 13 have a predetermined resistance value such that the input voltage is automatically stepped down when conducting through the ground electrode 12 and the conductive electrode 13. The conductive electrode 13 is disposed through the insulating base 11 such that one end portion 131 is exposed to the bearing surface 111, and the other end portion 132 is exposed to the outer side surface 112 of the insulating base 11 and extends to the bottom portion 1122; The electrode 12 also has an end portion 121 exposed to the bearing surface 111, and the other end portion 122 is partially exposed to the outer side surface 112 of the insulating base 11 and covers a portion of the surface of the externally threaded portion 1123. The lamp holders provided are fully compatible with current standard lamp holders, and consumers do not need to change any usage habits at all.

In this example, the double plastic lamp holder 1 is made by inserting two materials, a first plastic material and a second plastic material, into the mold at the same time and forming at the same time, so that the double plastic lamp holder 1 can be injected in a double material manner. Forming, after the double plastic lamp holder 1 is formed, the LED element 2 can be disposed on the bearing surface 111, and the ground electrode 12 and the conductive electrode 13 are respectively connected to the conductive ends of the LED element 2, and then the outer casing 3 is combined. And being fixed to the insulating base 11 so that the LED element 2 can be packaged in the outer casing 3 to further protect the LED element 2. Of course, as is generally known in the art, as shown in FIG. 3, the end portion 122 may also completely cover the surface of the externally threaded portion 1123 to increase the contact area of the ground electrode 12.

A second preferred embodiment of the LED bulb assembly of the present invention is shown in FIG. 4. In this example, the second plastic is exemplified by ABS (Acrylonitrile Butadiene Styrene). Since the ABS itself is easy to be plated, the ground electrode 12' and the conductive electrode 13' are formed by directly using the second plastic layer 124', 134' as a seed layer, and then plating a conductive layer 126 of a metal material by electroplating. ', 136'. Of course, it is also possible to combine the different impedance values of various metals so that the conductive layers 126', 136' can have a predetermined resistance value, so that the input voltage can be blocked when transmitted through the conductive layers 126', 136'. Anti-impedance and step-down, and down to the voltage required to drive the LED components.

As shown in FIG. 5, the outer casing 3' of the present example further has a set of fasteners 31', and the insulating base 11' is further formed with a set of fasteners 31' for the buckled outer casing 3' at the corresponding bearing surface 111'. The fastener 14', so when the final assembly work is performed, only the outer casing 3' needs to be pressed and the insulating base 11' is sheathed, so that the fastener 14' can be pressed to lock the fastener 31', so that the assembly work can be further improved. Convenient and fast.

However, when the input voltage is alternating current, as shown in FIG. 6, in the third comparative embodiment of the present case, the LED element 2" in this example is composed of a plurality of LED dies 21", and these LED dies 21 "Combined into a rectification architecture, and respectively formed two conduction paths 5", 6", when the input voltage is a positive voltage cycle, the LED die 21" located in the path 5" will emit light, and the LED located in the path 6" The die 21" does not emit light; when the input voltage is a negative voltage cycle, the LED die 21" located in the path 6" emits light, and the LED die 21" located in the path 5" does not emit light, therefore, The rectification structure formed by combining a plurality of LED elements allows the LED elements on one of the paths to emit light at any time, whether it is a positive voltage cycle or a negative voltage cycle, and the total illumination brightness of the lamp assembly can be maintained without separately providing a rectifier.

The double-shaped plastic lamp holder of the present invention can be formed by a fourth preferred embodiment as shown in FIG. 7. In this example, the double-material plastic lamp holder 1''' further includes a lampshade 15''', and The lampshade 15''' is a structure that is simultaneously formed and integrally formed with the double plastic lamp holder 1''', and the surface layer 151''' of the lampshade 15"" in the light-emitting direction can be surface-treated or plated. a layer of metal allows the light to be reflected. Therefore, when the double-shaped plastic lamp holder 1''' having the lampshade 15''' is illuminated in this example, the light source can be more concentrated and the illumination efficiency can be improved; The lampshade itself is attached to reduce the cost of the trenching design on the one hand, and the other can add The elasticity used.

Therefore, in the case of a double-shaped plastic lamp holder for LED bulbs and a bulb assembly having the same, it is only necessary to simultaneously produce a conductive and non-conductive plastic material into a plastic lamp holder, so that the plastic lamp holder has conductive characteristics. Different from the previous metal lamp holder production method, the manufacturing process is simpler, which helps to improve the production efficiency, and the manufacturing cost can be greatly reduced, and the ratio of the doped or plated metal can be controlled in the production of the plastic lamp holder. In the manner of adjusting the resistance values of the conductive electrode and the ground electrode, the lamp unit of the present invention can be electrically driven by the chamber provided by the power supply seat, so that no additional transformer is needed, which not only increases the profit, but also makes the user more convenient to use, and Achieve all of the above objectives.

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All should remain within the scope of the invention patent.

1‧‧‧Double plastic lamp holder

2‧‧‧LED components

11‧‧‧Insulated base

12‧‧‧Ground electrode

111‧‧‧ bearing surface

112‧‧‧Outside

121, 122, 131, 132‧‧‧ end

1123‧‧‧External thread

Claims (6)

A double-material plastic lamp holder for an LED bulb comprises: an insulating base formed by a first plastic and having a bearing surface for an LED component and an outer side; an at least partially separated from the first plastic material a eutectic shaped second plastic, a conductive electrode having one end exposed to an outer side of the insulating base and passing through the insulating base to expose the other end thereof to the carrying surface; and an at least partially made of the second plastic A ground electrode having one end exposed to the outer side of the insulating base and the other end exposed to the bearing surface and insulated from the conductive electrode. For example, the dual-purpose plastic lamp holder for the LED bulb of claim 1 is characterized in that the conductive electrode and the ground electrode are respectively composed of the second plastic doped conductive material. The dual-purpose plastic lamp holder for an LED bulb according to claim 1 or 2, wherein the outer side of the insulating base comprises a smooth portion, a bottom portion, and a portion of the external thread portion formed between the smooth portion and the bottom portion. The dual-purpose plastic lamp holder for an LED bulb according to claim 3, wherein one end of the ground electrode exposed to the outer side surface is covered on a part of the surface of the external thread portion; and the conductive electrode is exposed to one end of the outer side surface It extends to the bottom. For example, the double-plastic plastic lamp holder for the LED bulb of claim 1 or 2, wherein the first plastic is a light-transmissive plastic material. An LED bulb assembly having a double plastic lamp holder, comprising: a double plastic lamp holder, comprising: a bearing surface formed by a first plastic and having a bearing surface for an LED component and a An outer insulating base; an at least partially made of a second plastic formed integrally with the first plastic material, one end exposed to the outer side of the insulating base, and the other end of the insulating base a conductive electrode exposed to the carrying surface; and a ground portion at least partially made of the second plastic, one end exposed to the outer side of the insulating base, and the other end exposed to the carrying surface and insulated from the conductive electrode An electrode; and an LED element disposed on the bearing surface of the insulating base.