CN109458572B

CN109458572B - LED lamp with rotatable LED array

Info

Publication number: CN109458572B
Application number: CN201811438634.XA
Authority: CN
Inventors: 大卫·艾伦
Original assignee: Fiber Optic Designs Inc
Current assignee: Fiber Optic Designs Inc
Priority date: 2018-11-28
Filing date: 2018-11-28
Publication date: 2020-06-16
Anticipated expiration: 2038-11-28
Also published as: CN109458572A; PH12019000414A1

Abstract

The invention provides an LED lamp with a rotatable LED array, which comprises a bulb, a rigid lead and the LED array, wherein a cavity is arranged in the bulb, an opening is formed in the cavity, and the maximum diameter of the opening is smaller than the length of the LED array; the LED array is connected with the rigid lead, and the included angle between the LED array and the rigid lead is adjustable; when the angle between the rigid lead and the LED array is rotated to enable the projection length of the LED array at the opening of the bulb to be smaller than the maximum diameter of the opening, the LED array can penetrate through the opening to enter the cavity, and the angle between the rigid lead and the LED array can be rotated again to enable the projection length of the LED array at the opening of the bulb to be larger than the maximum diameter of the opening and fixed. The LED array can penetrate through the opening of the bulb to enter the bulb by changing the included angle between the rigid lead and the LED array, and the angle of the LED array in the bulb relative to the opening of the bulb is adjusted.

Description

LED lamp with rotatable LED array

Technical Field

The invention belongs to the technical field of LED lamps, and particularly relates to an LED lamp with a rotatable LED array.

Background

The LED lamp has high reliability, bright color, energy conservation and long service life, and the operation process is kept at low temperature without heating all the time, so the LED lamp becomes a popular light source for festival decoration and illumination. In order to provide a wide-angle emission characteristic of LED lamps, as well as incandescent filaments, conventional LED lamps are typically fabricated in the form of an LED array by first mounting LED chips or dies on a printed circuit board, then covering the printed circuit board with silicone, and possibly further coating with a phosphor layer. This form of LED array typically occupies a large amount of space and is difficult to secure, resulting in its inability to pass through the narrow neck of a prefabricated bulb, making it difficult to fit into a common pre-assembled plastic assembly such as blow-molded plastic or assembled globe-type bulbs to resemble a common incandescent lamp. As shown in fig. 1, according to the assembly mode of the conventional incandescent lamp, two ends of the LED array 102 are fixedly disposed on two rigid wires 103, and the other ends of the two rigid wires 103 are fixed on the LED driver 105 after passing through a stopper 104, and according to the assembly mode, since the sectional length of the LED array and the rigid wires is far greater than the diameter of the neck of the bulb 101, the LED array is difficult to pass through the narrow neck of the bulb 101 and enter the inside.

To install the LED array into the prefabricated bulb, the LED array may be pre-fixed, then blown with glass around the LED array to form a bulb around the LED array, and finally sealed with a prefabricated glass rod. While this approach is effective in mounting the LED array within the bulb, the problem of fragility is present because the bulb is blown from glass, and the process of blowing glass into the bulb is time consuming, labor intensive and costly. While the average consumer prefers a sturdy and durable plastic bulb. Still others have LED arrays that are vertically inserted through the neck of a prefabricated plastic bulb to be always held vertically with respect to the neck of the bulb for smooth installation into the bulb. As shown in fig. 2, such LED lamp generally includes a prefabricated bulb 201, an LED array 202, conductors 203, a stopper 204, an LED driver 205, and a screw socket 206, where the LED array 202 is vertically installed between the two conductors 203, the conductors 203 pass through the stopper 204 and are fixed on the LED driver 205, the LED array 202 is inserted into the bulb 201 along a direction perpendicular to the opening of the neck of the bulb when the LED lamp is installed, so that the stopper is clamped at the neck of the bulb for fixing, and finally the LED driver 205 is installed on the screw socket 206, so as to obtain an assembled LED lamp 207. Although the LED array can smoothly enter the bulb in the mounting mode, the LED array is always in a state of being vertical to the neck of the bulb, the angle of the LED array in the bulb cannot be adjusted, and the appearance of an incandescent bulb cannot be simulated. And the size, shape and number of LED arrays used in this mounting method are greatly limited. Yet another way of mounting is to divide the plastic bulb into sections and then re-bond or solder the sections around the LED array. This kind of mounting means can produce unsightly seam line, and needs a plurality of steps, and the operation is complicated, and is not only consuming time and power, is difficult to avoid moisture to get into in the bulb in the assembling process moreover to shorten the life of LED lamp.

Disclosure of Invention

Based on the structure, the LED lamp with the rotatable LED array is provided, the LED lamp can conveniently penetrate the LED array through the opening of the bulb to enter the bulb, and the angle of the LED array in the bulb can be adjusted at will.

The invention relates to an LED lamp with a rotatable LED array, which comprises a bulb, a rigid lead and the LED array, wherein a cavity is arranged in the bulb, an opening is arranged in the cavity, and the maximum diameter of the opening is smaller than the length of the LED array; the LED array is connected with the rigid lead, and the included angle between the LED array and the rigid lead is adjustable; when the angle between the rigid lead and the LED array is rotated to enable the projection length of the LED array at the opening of the bulb to be smaller than the maximum diameter of the opening, the LED array can penetrate through the opening to enter the cavity, and the angle between the rigid lead and the LED array can be rotated again to enable the projection length of the LED array at the opening of the bulb to be larger than the maximum diameter of the opening and fixed.

Compared with the prior art, the included angle between the LED array and the rigid lead is adjustable, the projection length of the LED array at the opening of the bulb is smaller than the maximum diameter of the opening by changing the included angle between the rigid lead and the LED array, so that the LED array penetrates through the opening of the bulb to enter the bulb, and the included angle between the rigid lead and the LED array is changed again to adjust the angle of the LED array in the bulb.

Furthermore, the LED lamp comprises two rigid wires, two ends of the LED array are respectively connected with one rigid wire, and the relative included angle between the LED array and the rigid wires can be changed by pulling one of the rigid wires.

Further, the rigid wire is hinged to the end of the LED array.

Further, the rigid lead is connected with the LED array through a flexible lead.

Further, the LED lamp also comprises a guider, the guider is clamped at an opening of the bulb, and the rigid lead penetrates through the guider.

Furthermore, the guider is provided with at least two pore channels along the axial direction of the bulb opening; the two rigid wires are respectively a fixed wire and a sliding wire, the fixed wire passes through one pore passage and is fixed on the guider, and the sliding wire passes through the other pore passage and can slide in the guider.

Furthermore, the LED lamp comprises an LED array, one end of the LED array is connected with a fixed lead, and the other end of the LED array is connected with a sliding lead; or the LED array structure comprises at least two LED arrays, one end of each LED array is connected with the same fixed lead, and the other end of each LED array is respectively connected with different sliding leads.

Furthermore, the guider is also provided with a groove which is communicated with the pore canal and is arranged along the axial direction of the pore canal; the LED lamp further comprises a positioning pin, and the positioning pin is clamped in the groove of the guider to fix the sliding lead.

Further, the LED lamp also comprises a driver, and the driver is arranged at the tail ends of the sliding lead and the fixed lead.

Further, the flexible lead length is less than the LED array length.

Drawings

FIGS. 1 and 2 are schematic diagrams of a conventional LED lamp structure and installation;

FIGS. 3A, 3B, 3C and 4 are schematic structural views of an LED lamp of embodiment 1;

fig. 5A, 5B, and 5C are schematic structural views of an LED lamp of embodiment 2.

Detailed Description

According to the invention, the LED array is rotatably connected with the rigid lead, and the LED array can rotate relative to the conductor to form an unfolded or folded state, so that the LED array can be easily installed in a prefabricated bulb through a narrow opening of the bulb, and the angle of the LED array in the bulb can be adjusted. The technical solution of the present invention will be described in detail below with reference to specific examples.

Example 1

Referring to fig. 3A, 3B, and 3C, the LED lamp of the present invention includes a bulb 301, an LED array 302, two rigid wires 303, a guide 304, a positioning pin 304A, a driver (not shown), and a flexible wire 306, wherein the bulb 301 has an opening, the LED array 302 is connected to the rigid wire 303 through the flexible wire 306, and an included angle between the two wires is adjustable between 0 ° and 360 °, when the rigid wire 303 and the LED array 302 are rotated by an angle such that a projection length of the LED array 302 on the opening of the bulb 301 is smaller than a maximum diameter of the opening, the LED array 302 can enter the bulb 301 through the opening, and the rigid wire 303 and the LED array 302 can be rotated by an angle such that the projection length of the LED array 302 on the opening of the bulb 301 is larger than the maximum diameter of the opening and is fixed. The guide 304 and the positioning pin 304A are disposed at the opening of the bulb 301, and the driver is fixed to the end of the rigid wire 303.

Specifically, a cavity is formed inside the bulb 301, and an opening is opened in the cavity. The guide 304 may be engaged in the opening and may have a groove along the axial direction of the opening and two channels leading to the groove along the axial direction of the opening. The two rigid wires 303 are made of a hard or semi-hard conductor material, do not deform without external force, can support the LED array, and are divided into fixed wires and sliding wires. The fixed wire passes through a hole of the guider 304 and is fixed in the guider 304, and two ends of the fixed wire are exposed; the sliding wire passes through another hole of the guide 304 and can slide in the guide 304, and both ends are exposed. The LED array 302 is formed by connecting a plurality of LED chips in parallel or in series, and in this embodiment, the LED array 302 may be formed in a strip shape, and the length thereof is greater than the maximum diameter of the opening of the bulb 301. One end of the LED array 302 is connected to the fixed lead via a flexible lead 306, and the other end is connected to the sliding lead via another flexible lead 306, and the included angle between the LED array 302 and the sliding lead and the fixed lead can be changed by operating the sliding lead with the flexible lead as a pivot. The flexible lead 306 is made of a flexible conductor material, is soft and easy to deform, cannot be separately made into an LED array, and has a length much smaller than that of the LED array 302. The positioning pin 304A can be engaged in a groove of the guide 304 to immobilize the sliding wire. The driver is fixedly arranged at the tail ends of the sliding lead and the fixed lead.

When installed, the LED array 302 and the rigid lead 303, flexible lead 306 and guide 304 are connected together in the above-described relationship, as shown in fig. 3A; then, the sliding lead is pulled to bend the flexible lead 306, the flexible lead can be used as a pivot for rotation or folding, and the angle of the LED array 302 relative to the fixed lead and the sliding lead can be changed between 0-360 degrees; when the projection length of the LED array 302 at the opening of the bulb 301 is adjusted to be smaller than the maximum diameter of the opening, the LED array 301 may directly penetrate through the cavity opening of the bulb 301 into the cavity of the bulb 301, as shown in fig. 3B. The guide 304 is clamped in the channel, and then the sliding wire is pushed into the cavity to adjust the angle of the LED array relative to the opening of the cavity to a proper position to simulate the shape of an incandescent lamp, for example, the LED array is adjusted to make the projection length of the LED array on the opening of the bulb greater than the maximum diameter of the opening, or the LED array is perpendicular to the axial direction of the opening of the bulb, as shown in fig. 3C, the positioning pin 304A is inserted into the groove of the guide 304 to fix the sliding wire. Finally, the driver is fixed at the ends of the sliding and fixed wires exposed out of the guide 304.

As an improvement, the LED array can be hinged with the rigid lead through a hinged shaft, the flexible lead is not needed, and the LED array and the rigid lead can rotate by taking the hinged shaft as a pivot so that an included angle between the LED array and the rigid lead is changed. As shown in fig. 4, the LED array 301 is hinged at two ends to a rigid wire 303 through a hinge shaft 307. Pulling a rigid wire 303 can make the LED array 301 and the rigid wire 303 rotate relatively around the hinge shaft, changing the angle between the LED array 301 and the rigid wire 303 within the range of 0-360 degrees, making the LED array 301 pass through the opening of the bulb and enter the cavity after rotating to a proper position, and then making the LED array 301 and the rigid wire 303 rotate relatively around the hinge shaft again to adjust the position of the LED array in the bulb cavity.

Example 2

Referring to fig. 5A, 5B, and 5C, the LED lamp of the present embodiment includes a bulb 401, two LED arrays 402, two rigid wires 303, a guide 404, a support rod, a positioning pin 404A, a driver (not shown), and a flexible wire 406. The bulb 401 is provided with an opening, the LED array 402 is connected with the rigid lead 403 through the flexible lead 406, an included angle between the LED array 402 and the rigid lead 403 can be adjusted within a range of 0-360 degrees, when the rigid lead 403 and the LED array 402 are rotated by an angle so that the projection length of the LED array 402 on the opening of the bulb 401 is smaller than the maximum diameter of the opening, the LED array 402 can enter the bulb 401 through the opening, and the rigid lead 403 and the LED array 402 can be rotated by an angle again so that the projection length of the LED array 402 on the opening of the bulb 401 is larger than the maximum diameter of the opening and is fixed. The guide 404 and the positioning pin 404A are disposed at the opening of the bulb 401, and the driver is fixed to the end of the rigid wire 403.

Specifically, a cavity is formed inside the bulb 401, and the cavity is opened with an opening. The guide 404 may be engaged in the opening and may have a groove along the axial direction of the opening and three channels leading to the groove along the axial direction of the opening. The two rigid wires 403 are made of a hard or semi-hard material and are divided into a fixed wire and a sliding wire, the fixed wire passes through one hole of the guide 404 and is fixed on the guide 404, the three sliding wires include a first sliding wire, a second sliding wire and a third sliding wire, the first sliding wire, the second sliding wire and the third sliding wire intersect at a point on one side of the groove of the guide 404, and the first sliding wire and the second sliding wire respectively pass through the other two holes of the guide and can slide in the guide 404. The LED array 402 is formed by connecting a plurality of LED chips in parallel or in series, and in this embodiment, the LED array 402 may be formed in a strip shape, and the length thereof is greater than the maximum diameter of the opening of the bulb 401. One end of each LED array 402 is connected with one end of the fixed wire far away from the guide 404 through a flexible wire 406, or one end of each LED array 402 is hinged with one end of the fixed wire far away from the guide 404 through a hinged shaft; the other end is connected with the first sliding lead or the second sliding lead through another flexible lead 406, or the other end is hinged with the first sliding lead or the second sliding lead through a hinge shaft. The angle between the LED array 302 and the sliding wire or the fixed wire can be changed by manipulating the sliding wire with a flexible wire or with a hinged shaft as a pivot. When the LED array 402 is connected to the sliding and fixed wires by the flexible wire 406, the length of the flexible wire 406 is much smaller than the length of the LED array. The positioning pin 404A can be snapped into a groove of the guide 404 to immobilize the sliding wire. The driver is fixedly arranged at the tail ends of the sliding lead and the fixed lead.

When installed, the LED array 402, rigid leads 403, flexible leads 406, and guide 404 are connected together in the above-described relationship, as shown in fig. 5A; and when the third sliding lead is pulled, the LED array 402, the fixed lead and the sliding lead rotate around the flexible lead 406 or the hinge shaft, so that the included angle between the LED array 402 and the fixed lead and the sliding lead can be changed between 0 and 360 degrees. When the projection length of the two LED arrays 402 at the opening of the bulb 401 is adjusted to be less than the maximum diameter of the opening, the two LED arrays 402 can directly penetrate through the cavity opening of the bulb 401 and enter the cavity of the bulb 401, as shown in fig. 5B. The guide 404 is clamped in the channel, and then the sliding wire is pushed into the cavity to adjust the angle of the LED array 402 relative to the opening of the cavity to a suitable position to simulate the shape of an incandescent lamp, for example, the LED array is adjusted to make the projection length of the LED array at the opening of the bulb is larger than the maximum diameter of the opening, and for example, two LED arrays 402 are symmetrically distributed at two sides of the fixed wire and form an acute angle with the fixed wire, as shown in fig. 5C, the positioning pin 404A is inserted into the groove of the guide 404 to fix the sliding wire. Finally, the driver is fixed to the end of the sliding wire and the fixed wire exposed out of the guide 404.

Compared with the prior art, the angle between the LED array and the rigid lead wire is adjustable, and the projection length of the LED array at the opening of the bulb is smaller than the maximum diameter of the opening by pulling the rigid lead wire, so that the LED array can penetrate through the opening and enter the cavity of the bulb. And then the rigid lead is pushed into the bulb cavity, so that the LED array and the rigid lead can rotate relatively again, the angle of the LED array relative to the opening of the bulb is adjusted, various forms of incandescent lamps are simulated, and various decoration requirements are met. And the sliding lead passes through the pore passage and the groove of the guider, and the positioning pin can be plugged into the groove to fix the sliding lead after the position of the LED array is adjusted.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims

1. An LED lamp having a rotatable LED array, comprising: the LED lamp comprises a bulb, a rigid lead and an LED array, wherein a cavity is arranged in the bulb, an opening is formed in the cavity, and the maximum diameter of the opening is smaller than the length of the LED array; the LED array is connected with the rigid lead, and the included angle between the LED array and the rigid lead is adjustable; when the angle between the rigid lead and the LED array is rotated to enable the projection length of the LED array at the opening of the bulb to be smaller than the maximum diameter of the opening, the LED array can penetrate through the opening to enter the cavity, and the angle between the rigid lead and the LED array can be rotated again to enable the projection length of the LED array at the opening of the bulb to be larger than the maximum diameter of the opening and fixed.

2. The LED lamp of claim 1, wherein: the LED array is characterized by comprising two rigid wires, wherein two ends of the LED array are respectively connected with one rigid wire, and the relative included angle between the LED array and the rigid wires can be changed by pulling one of the rigid wires.

3. The LED lamp of claim 2, wherein: the rigid lead is hinged to the end of the LED array.

4. The LED lamp of claim 2, wherein: the rigid lead is connected with the LED array through a flexible lead.

5. The LED lamp of claim 3 or 4, wherein: the bulb is characterized by further comprising a guider, wherein the guider is clamped at an opening of the bulb, and the rigid lead penetrates through the guider.

6. The LED lamp of claim 5, wherein: the guider is provided with at least two pore channels along the axial direction of the bulb opening; the two rigid wires are respectively a fixed wire and a sliding wire, the fixed wire passes through one pore passage and is fixed on the guider, and the sliding wire passes through the other pore passage and can slide in the guider.

7. The LED lamp of claim 6, wherein: the LED array comprises an LED array, wherein one end of the LED array is connected with a fixed lead, and the other end of the LED array is connected with a sliding lead; or the LED array structure comprises at least two LED arrays, one end of each LED array is connected with the same fixed lead, and the other end of each LED array is respectively connected with different sliding leads.

8. The LED lamp of claim 7, wherein: the guider is also provided with a groove which is communicated with the pore canal and is arranged along the axial direction of the pore canal; the LED lamp further comprises a positioning pin, and the positioning pin is clamped in the groove of the guider to fix the sliding lead.

9. The LED lamp of claim 8, wherein: the LED lamp further comprises a driver, and the driver is arranged at the tail ends of the sliding lead and the fixed lead.

10. The LED lamp of claim 4, wherein: the flexible lead length is less than the LED array length.