Patent Application
20170082274
Field of the Invention
The present invention relates to a dimming lampholder, and more particular to the dimming lampholder having a switch and a dimming circuit installed on a printed circuit board and operated with a dimmable energy-saving fluorescent bulb and a dimmable LED bulb, so that the dimmable energy-saving fluorescent bulb and the dimmable LED bulb may be installed and used directly.
Description of the Related Art
Lampholder is a device for installing and supporting a light emitting element (such as an incandescent bulb). At early stage, most lampholders just have the effects of turning ON and OFF a current but cannot adjust the brightness of the light emitting element. With rising awareness of energy saving and carbon reduction, more and more users have different requirements on the power saving feature of the lampholders. To cope with market requirements, dimmable lampholders are introduced to the market. Most conventional dimming lampholders adopt the measure of changing voltage or resistance to adjust the brightness of the light emitting element. However, such dimming method is just applicable for incandescent bulbs of higher power consumption, and cannot be used in fluorescent bulbs or LED bulbs of better power saving effect.
As science and technology advance, the light emitting element changes rapidly, and a dimmable energy-saving fluorescent bulb and a dimmable LED bulb have been developed, and the power-saving fluorescent bulb and LED bulb are equipped with a dimming mechanism. However, the aforementioned conventional dimming lampholder cannot be used with the newly developed dimmable energy-saving fluorescent bulb and dimmable LED bulb, so that it is necessary to design and develop a dimming holder for the dimmable energy-saving fluorescent bulb and the dimmable LED bulb to extend the scope of applicability and meet user requirements.
Therefore, it is a primary objective of the present invention to provide a dimming lampholder that can be connected directly to a dimmable energy-saving fluorescent bulb and a dimmable LED bulb to achieve the dimming effect.
To achieve the aforementioned and other objectives, the present invention provides a dimming lampholder comprising a seat, a cover body, a cap, a screwing ring, a printed circuit board, a knob and a plurality of electrical connecting plates, wherein a circular stepped surface is formed at the external periphery of the top surface of the seat, and a positioning slot, a plurality of first engaging holes and a plurality of second engaging holes are formed on a surface enclosed by the circular stepped surface, and the seat is extended downwardly to form a cylindrical shape and has an opening formed at the bottom of the seat and penetrating into the seat, and a plurality of clamping slots formed on the seat.
The cover body includes a plurality of engaging hole pillars protruded from the top of the cover body, and a plurality of arc chutes disposed around the periphery of the cover body and symmetrical with one another, and an insert hole with an expanded internal diameter being connected to an end of each chute.
The cap is a circular arc cap shaped object and includes an outwardly protruding ring disposed near the bottom of the cap and having an outer thread formed at the bottom of the outwardly protruding ring and provided for connection, a penetrating hole formed at the center of the top of the outwardly protruding ring, and the bottom of the cap being an inwardly penetrating opening, and a penetrating slot being formed on a circular wall.
The screwing ring has a hollow penetrating the bottom of the screwing ring, and a circular stepped surface formed inwardly at the bottom of the screwing ring, and an inner thread formed on an inner side of the screwing ring.
The printed circuit board has a switch and a dimming circuit installed on a side of the printed circuit board, a knob coupled to the switch and the dimming circuit, and a plurality of electrical connecting screws installed at the top of the printed circuit board, and the electrical connecting screws are electrically connectable to the switch and the dimming circuit, and the bottom of the printed circuit board has a plurality of conductive plates formed in to a bent shape, so that the horizontal section faces outward, and its distal end has an engaging hole, and the plurality of conductive plates are electrically coupled with the switch and the dimming circuit.
The electrical connecting plates are formed into a bent shape, and each having an engaging hole formed at the top of the electrical connecting plate and an abutting portion formed at the bottom of the electrical connecting plate.
The printed circuit board is vertically erected from a bottom end from the positioning slot formed at the top side of the seat, so that the engaging holes of the conductive plate coupled to the bottom of the printed circuit board are one-to-one corresponsive to the first engaging holes of the seat.
The electrical connecting plates are installed into an opening of the bottom of the seat in an upward direction of the engaging hole of the electrical connecting plates, so that a middle section of the electrical connecting plates is inserted into a corresponsive clamping slot, and the engaging holes of the electrical connecting plates are one-to-one corresponsive to the first engaging holes of the seat, so that the engaging hole of the conductive plate coupled to the bottom of the printed circuit board, the first engaging hole of the seat, and the engaging hole of the electrical connecting plate are connected by a plurality of engaging members respectively.
The cover body is accommodated into in the seat in an upward direction of the engaging hole pillar, so that the engaging hole pillars of the cover body in the seat are one-to-one corresponsive to the second engaging holes, and the abutting portions of the electrical connecting plates are one-to-one correspondingly remained at the chutes and on a side of the insert hole, and the second engaging holes and the engaging hole pillars are coupled by inserting a plurality of engaging members respectively.
The aforementioned assembly is installed into an opening at the bottom of the cap in an upward direction of the printed circuit board, and the knob coupled to the switch and the dimming circuit of the printed circuit board is entered along a penetrating slot of the knob until the circular stepped surface at the external periphery of the top of the seat abuts the bottom edge of the cap.
The screwing ring is sheathed on the external periphery of the seat by a hollow of the screwing ring, and an inner thread of the screwing ring is gradually engaged with the outer thread of the bottom of the cap bottom until the circular stepped surface of the screwing ring abuts the outwardly protruding ring of the cap.
In the aforementioned dimming lampholder, the seat has a plurality of positioning ribs disposed within the range of the circular stepped surface, and the cap has a plurality of positioning recesses formed at the internal periphery of the bottom of the cap, and when the inner thread of the screwing ring is gradually engaged with the outer thread of the bottom of the cap, the positioning ribs formed on the circular stepped surface is one-to-one correspondingly abutted into the positioning recesses formed at the internal periphery of the bottom of the cap.
In the aforementioned dimming lampholder, the top of the printed circuit board is connected to a conductive plate, and then the electrical connecting screw is secured onto the conductive plate.
The present invention further provides a dimming lampholder comprising a seat, an open cylinder, a cap, a base, a printed circuit board and a knob bracket, wherein the seat is formed into a circular disc shape and has a plurality of through installing hole formed on both sides of the seat and a through hole formed at the middle of the seat.
The open cylinder has a vertical through slot formed at the center of the top of the open cylinder, a through installing hole formed on both sides of the open cylinder separately and configured to be corresponsive to the through installing hole of the seat, and a wall extended downwardly from the open cylinder is a threaded groove wall.
The cap is a circular arc cap shaped object, and has an outwardly protruding ring near the bottom of the cap, an outer thread formed at the bottom of the cap and provided for connection, a penetrating hole formed at the center of the top of the cap, an opening penetrated inwardly from the bottom of the cap, and a penetrating slot formed on a circular wall of the cap.
The base is a longitudinally penetrating ring-shaped object with the bottom as a casing, and the top formed into a screwing ring with an expanded external diameter, and a circular stepped surface is formed at the connecting position of the casing and the screwing ring, and an inner thread is formed on an inner side of the screwing ring and provided for connection.
The printed circuit board has a switch and a dimming circuit installed on a side of the printed circuit board, and a knob is coupled to a side of the switch and the dimming circuit, and the top of the printed circuit board has a plurality of electrical connecting screws, and the electrical connecting screws is provided for electrically connecting the switch and the dimming circuit, and the bottom of the printed circuit board has a first conductive plate and a second conductive plate, and the first conductive plate is formed into a bent shape, so that the horizontal section faces outward, and an engaging hole is formed at the distal end of the first conductive plate, and the second conductive plate is bent with an angle greater than 90 degrees, and the bent oblique section is downwardly oblique, and a conductive bump is formed at the center of the bottom near the oblique section, and the first conductive plate and the second conductive plate and the switch and dimming circuit are electrically coupled to one another.
The printed circuit board is vertically installed onto the seat, so that an engaging hole formed on a horizontal section of the first conductive plate is configured to be corresponsive to one of the through installing holes of the seat, and the oblique section of the second conductive plate is passed and installed into the a through hole formed at the center of the seat, while the open cylinder is installed to the bottom of the seat, so that the oblique section of the second conductive plate is extended downwardly and obliquely from the vertical through slot, and the through installing hole of the open cylinder is attached to the through installing hole of the seat, and after one of a plurality of engaging members is passed through the engaging hole of the first conductive plate, a through installing hole of the seat, and a through installing hole of the open cylinder, and the other engaging member is passed through the other through installing hole of the seat and the other through installing hole of the open cylinder, the aforementioned assembly is accommodated into an opening formed at the bottom of the cap in an upward direction of the printed circuit board, the knob disposed on the printed circuit board and coupled to the switch and the dimming circuit is entered along the penetrating slot of the cap, and a hollow of the base is sheathed from bottom to top on the open cylinder and the exterior of the seat, and the inner thread of the screwing ring and the outer thread of the cap bottom are engaged gradually until the outwardly protruding ring of the cap and the circular stepped surface of the base clamp the seat.
In the aforementioned dimming lampholder, the top of the printed circuit board is connected to a conductive plate, and then the electrical connecting screw is secured onto the conductive plate.
The technical characteristics, contents, advantages and effects of the present invention will be apparent with the detailed description of a preferred embodiment accompanied with related drawings as follows.
With reference to
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During an assembling process, the printed circuit board 14 is vertically erected from an end of its bottom and installed into the positioning slot 103 of the top of the seat 10 to achieve the positioning effect, so that a plurality of engaging holes 1431 formed on a horizontal section of the conductive plate 143 coupled to the bottom of the printed circuit board 14 is configured to be one-to-one corresponsive to the first engaging holes 104. In the meantime, the electrical connecting plates 16 are installed into the opening 106 formed at the bottom of the seat 10 from an upward direction of the engaging hole 161, so that a middle section of the electrical connecting plates 16 is inserted into a corresponsive clamping slot 107, and the engaging holes 161 of the electrical connecting plates 16 are one-to-one corresponsive to the first engaging holes 104. In other words, the engaging holes 1431, the first engaging holes 104 and the engaging holes 161 are attached with one another respectively, so that a plurality of engaging members 1432 (such as rivets) can be inserted into the engaging holes 1431, the first engaging holes 104 and the engaging holes 161 respectively to achieve the purpose of connection (by riveting, for example). In
And then, the cover body 11 is installed into the opening 106 formed at the bottom of the seat 1 o by the engaging hole pillar 111 in an upward direction, so that the engaging hole pillars 111 of the cover body 11 in the seat 10 are configured to be precisely one-to-one corresponsive to the second engaging holes 105, and the abutting portions 162 of the electrical connecting plates 16 are one-to-one correspondingly remained on a side of the chutes 112 and the insert hole 113, so that a plurality of engaging members 1051 (such as rivets) is inserted into the second engaging holes 105 and the engaging hole pillars 111 for connection (such as by riveting, for example), so that the seat 10 and the cover body 11 are assembled and combined. To make it easier to understand, the cover body 11 is hidden, so that the structural relation between the conductive plate 143 of the printed circuit board 14, the electrical connecting plates 16, and the cover body 11 is as shown in
The assembly comprised of the seat 10, the cover body 11, the printed circuit board 14, the knob 15 and the electrical connecting plate 16 is accommodated into the opening 124 formed at the bottom of the cap 12 in an upward direction of the printed circuit board 14. During the process, a knob 15 connected to the switch and the dimming circuit 140 of the printed circuit board 14 is entered along the penetrating slot 125, until the circular stepped surface 101 of the external periphery of the top of the seat 10 abuts the bottom of the cap 12, and the positioning ribs 102 of the circular stepped surface 101 abuts the positioning recesses 126 at the internal periphery of the bottom of the cap 12 respectively.
Finally, a hollow 133 of the screwing ring 13 is sheathed on the external periphery of the seat 10 and pushed upward, and the inner thread 132 of the screwing ring 13 is gradually engaged with the outer thread 122 at the bottom of the cap 12 until the circular stepped surface 131 of the screwing ring 13 moves upward to abut the outwardly protruding ring 121 of the cap 12, so as to complete the process of assembling the whole dimming lampholder 1.
Before use, it is necessary to extend a power cable (of a power supply such as the mains power) into the penetrating hole 123 of the cap 12 and process an end of the power cable to form a bare end in order to lock the bare end of the power cable with the electrical connecting screw 141 on the printed circuit board 14 to supply electric power to the switch and the dimming circuit 140 installed on the printed circuit board 14. By operating the switch and the dimming circuit 140, the power is supplied to the electrical connecting plates 16 for future use.
During use, a dimmable energy-saving fluorescent bulb with two electrode rods may be installed, wherein the electrode rods are inserted into the insert holes 113 of the cover body 11 respectively and then slid along the chutes 112, so that the two electrode rods are electrically coupled to the electrical connecting plates 16, and the knob 15 may be turned to power on the dimmable energy-saving fluorescent bulb, and the knob 15 may be turned further to make the dimmable energy-saving fluorescent bulb brighter. The main effect resides on that the printed circuit board 14 has a dimmable switch and a dimming circuit 140 installed thereon, so that the knob 15 may be turned to adjust the brightness of the dimmable energy-saving fluorescent bulb directly.
With respect to
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During an assembling process, the open cylinder 21 is installed to the bottom of the seat 20, so that the bent oblique section of the second conductive plate 244 is extended from the vertical through slot 211 downwardly and obliquely to the outside (as shown in
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During an assembling process, the assembly comprised of the printed circuit board 24, the knob 25, the seat 20 and the open cylinder 21 is assembled, and the printed circuit board 24 is accommodated into the opening of the bottom of the cap 22 in an upward direction. In the process, the knob 25 connected to the switch and the dimming circuit 240 of the printed circuit board 24 is entered from the penetrating slot 225 and then a hollow of the base 23 is sheathed from bottom to top on the open cylinder 21 and the exterior of the seat 20, and the inner thread 232 formed on the inner side of the screwing ring 233 is gradually engaged with the outer thread 222 formed at the bottom of the cap 22 until the outwardly protruding ring 221 of the cap 22 and the circular stepped surface 231 of the base 23 jointly clamp the seat 20, so as to complete the process of assembling the whole dimming lampholder 2.
Before use, a power cable (connected to the mains power) is extended into the penetrating hole 223 of the cap 22, and an end of the power cable is processed to form a bare end and the bare end of the power cable is connected with an electrical connecting screw 241 of the printed circuit board 24 to supply power to the switch and the dimming circuit 240 of the printed circuit board 24, and the switch and the dimming circuit 40 may be operated to conduct the first conductive plate 243 and the second conductive plate 244, wherein the first conductive plate 243 conduct the electrode through one of the engaging members 245 to the open cylinder 21, and the second conductive plate 244 remains in the vertical through slot 211 of the open cylinder 21, and a gap is maintained between the second conductive plate 244 and the open cylinder 21, so that they are not in contact with one another.
During use, a dimmable LED bulb at the top of a screw head is inserted into the corresponsive open cylinder 21 and screwed with the threaded groove wall 213 of the open cylinder 21 to achieve the effect of contacting the screw head of the dimmable LED bulb with the conductive bump 2441 of the second conductive plate 244 securely. Now, the dimmable LED bulb, the open cylinder 21 and the conductive bump 2441 are electrically connected. In other words, the dimmable LED bulb is electrically connected to the switch and the dimming circuit 240. Therefore, the knob 25 may be turned to power on the dimmable LED bulb, and the knob 25 may be turned further to make the dimmable LED bulb brighter. The main effect resides on that the printed circuit board 24 has the dimmable switch and the dimming circuit 240 installed thereon, so that the knob 25 may be turned to adjust the brightness of dimmable LED bulb directly.
In summation, the present invention comprises the switch and the dimming circuit installed on the printed circuit board of the dimming lampholder and operated with the dimmable energy-saving fluorescent bulb and the dimmable LED bulb, so that the dimmable energy-saving fluorescent bulb and the dimmable LED bulb can be installed and used directly, so as to achieve the effect of dimming a lamp installed to the lampholder directly.
In summation of the description above, the present invention achieves the expected functions and objectives and complies with patent application requirements, and thus is duly filed for patent application.
While the invention is described in some detail hereinbelow with reference to certain illustrated embodiments, it is to be understood that there is no intent to limit it to those embodiments. On the contrary, the aim is to cover all modifications, alternatives and equivalents falling within the spirit and scope of the invention as defined by the appended claims.
