TWI468619B - Extendable lamp tube - Google Patents

Description

Telescopic LED tube

The invention relates to an LED lamp tube, in particular to a telescopic LED lamp tube which can be adjusted in length to be suitable for different size lamp holders.

Please refer to FIG. 1 , for example, the "Retractable Lamp" patent of the Republic of China Publication No. 201221842, which discloses an adjustable length telescopic lamp 9 comprising an outer tube 91, an inner tube 92, and a first illumination unit 93. And a second lighting unit 94. The outer tube 91 and the inner tube 92 are sleeved and displaced relative to each other. The first light-emitting unit 93 is disposed inside the outer tube 91, and the second light-emitting unit 94 is disposed inside the inner tube 92. The first light-emitting unit 93 is electrically connected to the second light-emitting unit 94, and the first light-emitting unit 93 and the second light-emitting unit 94 are dislocated, and when the outer tube 91 and the inner tube 92 are relatively displaced, the first light-emitting unit 93 It does not interfere with the second light emitting unit 94.

According to the foregoing structure, the user can relatively displace the outer tube 91 and the inner tube 92 to adjust the length of the telescopic tube 9, so that it can be applied to lamp holders of different specifications; thus, the user will not buy The problem of the wrong size of the lamp can improve the convenience of use.

However, when the user mounts the telescopic tube 9 to the lamp holder of a smaller size, a portion of the inner tube 92 penetrating into the outer tube 91 is increased, so that the first illumination unit 93 and the second illumination unit 94 are formed. The misalignment overlaps, thereby obscuring the light source at the overlap, so that the illumination of the telescopic tube 9 decreases with the length reduction, but the total energy consumed is not reduced, so the illumination provided by the unit energy is not good. .

For the above reasons, conventional telescopic lamps do have to be improved.

The main object of the present invention is to provide a telescopic LED tube. When the length of the tube is reduced, the overlapping of the illumination module can be reduced, so that the illumination is hardly changed to maintain the illumination provided by the unit energy.

In order to achieve the foregoing objectives, the technical content of the present invention includes: a telescopic LED tube comprising: an outer tube having a first electrical connection port at one end; and an inner tube at one end slidably extending through The second end of the outer tube is provided with a second electrical connection; and an LED flexible strip is disposed in the outer tube and the inner tube, and the two ends of the LED flexible strip are respectively connected to the first electrical connection And the second electrical connection port; wherein the inner tube is provided with a plurality of frame limiting pieces, and the plurality of frame limiting frame limits a suspension space for accommodating the LED flexible strip.

The telescopic LED tube of the present invention, wherein the inner circumferential surface of the outer tube can be provided with at least one guiding portion in the axial direction, and the outer circumferential surface of the inner tube can be provided with a corresponding sliding portion along the axial direction, the inner tube The sliding portion is slidably abutted against the guiding portion of the outer tube.

In the telescopic LED tube of the present invention, the number of the guiding portions of the outer tube may be two, and the number of the sliding portions of the inner tube may also correspond to two.

In the telescopic LED tube of the present invention, the guiding portion may be a rib, and the sliding portion may be a corresponding groove; or the guiding portion may be a groove, and the sliding portion may be a corresponding convex portion. rib.

The telescopic LED tube of the present invention, wherein the number of the plurality of frame blocks There may be two, and the two frame limiting pieces are disposed opposite to each other with the center of the cross section of the inner tube.

The telescopic LED tube of the present invention, wherein the number of the plurality of frame limiting pieces may be three, wherein the two frame limiting pieces are disposed opposite to each other at a center of a cross section of the inner tube, and the other frame limiting piece is disposed on the two On the top side of the frame, the frame portion at the top and the inner circumference of the inner tube enclose an accommodation space.

The above and other objects, features and advantages of the present invention will become more <RTIgt; In the embodiment, the telescopic LED tube can include an outer tube 1, an inner tube 2 and an LED flexible strip 3, and the inner tube 2 can be movably worn. Extending in the outer tube 1, and the LED flexible strip 3 is disposed in the outer tube 1 and the inner tube 2; when the outer tube 1 and the inner tube 2 are relatively displaced, the LED flexible strip 3 can be bent and deformed to change The extent of hanging.

The outer tube 1 is a hollow permeable tube body, one end of the outer tube 1 is an open end 11 for the inner tube 2 to penetrate; the other end of the outer tube 1 is a closed end 12, and is provided with a first An electrical connection port 13 is provided for guiding a lamp holder 4 (as shown in FIG. 3). In addition, the inner circumferential surface of the outer tube 1 can also be provided with at least one guiding portion 14 in the axial direction; in the embodiment, the number of the guiding portions 14 can be selected to be two, so as to guide the sealing portion relatively stably. The inner tube 2 is displaced relative to the outer tube 1 and the inner tube 2 is prevented from rotating relative to the outer tube 1.

The inner tube 2 is also a hollow permeable tube body, and the inner tube 2 is The ends are respectively an open end 21 and a closed end 22, and the inner tube 2 is provided with a second electrical connection port 23 at the closed end 22 for guiding the aforementioned lamp holder 4. In addition, the outer circumferential surface of the inner tube 2 may further be provided with at least one sliding portion 24 in the axial direction to abut the guiding portion 14 of the outer tube 1; in the embodiment, the sliding of the inner tube 2 The portion 24 is provided with two guiding portions 14 of the outer tube 1. For example, referring to FIG. 4, the two sliding portions 24 may be, for example, two grooves, and the two guiding portions 14 are oppositely selected as two convex portions. The ribs, however, the shape and arrangement of the guide portion 14 and the sliding portion 24 are not limited to the drawings, and can be understood by those skilled in the art.

In addition, the inner tube 2 can also be provided with a plurality of frame limiting pieces 25, and the plurality of frame limiting pieces 25 can frame a hanging space 26 for accommodating the LED flexible strip 3 and limiting the LED soft. When the light bar 3 is deformed, it is not arbitrarily turned over; at the same time, the plurality of frame limiting pieces 25 can also strengthen the structural strength of the inner tube 2, so that the inner tube 2 is not easily deformed. In the embodiment shown in FIG. 4, the number of the plurality of frame limiting pieces 25 can be selected to be three, wherein the two frame limiting pieces 25 are arranged in a left-right direction with the center of the cross section of the inner tube 2, and the other The frame limiting piece 25 is disposed on the top side of the two opposing frame limiting pieces 25, so that the frame limiting piece 25 located at the topmost portion and the top inner circumferential surface of the inner tube 2 enclose an accommodating space 27 for storage, for example, The spare LED flexible strip 3 is placed; in addition, the inner tube 2 can also be provided with only the left and right opposite frame limiting pieces 25, and the frame is limited to a width slightly larger than the hanging space 26 of the LED flexible strip 3, in case The LED flexible strip 3 is flipped and is familiar to those skilled in the art and is not limited by the drawings.

Referring to FIG. 2 , the LED flexible strip 3 is disposed in the suspension space 26 of the outer tube 1 and the inner tube 2 , and the LED flexible strip 3 includes a soft strip 31 and a plurality of light emitting modules 32 . The flexible strip 31 is a long strip body that can be bent and deformed, The two ends of the flexible strip 31 are connected to the first electrical connecting port 13 and the second electrical connecting port 23 respectively. The flexible strip 31 includes wires (not shown), and the plurality of light emitting modules 32 are along the flexible strip. The long direction of 31 is fixed to the flexible strip 31 and electrically connected to the electric wires in the flexible strip 31.

According to the foregoing structure, the open end 21 of the inner tube 2 can be inserted into the outer tube 1 from the open end 11 of the outer tube 1, and the sliding portion 24 of the inner tube 2 and the outer tube 1 can be guided. The portions 14 abut each other to guide the outer tube 1 and the inner tube 2 to generate a relative axial translation, thereby changing the distance between the first electrical connection port 13 and the second electrical connection port 23, so that the expansion and contraction LED tubes can be used for lamp holders 4 of different sizes.

Referring to FIG. 3, when the telescopic LED tube is to be mounted on a larger size lamp holder 4, the first electrical connection port 13 of the outer tube 1 can be clamped to one of the lamp holders 4. Connected to the inner tube 2, and the second electrical connection port 23 of the inner tube 2 is latched to the other electrical connection port 41 of the lamp holder 4; or the inner tube 2 is chucked first. Then, the outer tube 1 can be pumped to the position. At this time, the LED flexible strip 3 is suspended or slightly suspended in the suspension space 26 of the outer tube 1 and the inner tube 2, and passes through the controller 42 of the socket 4, and the second electric The conduction of the first connection port 41, the first electrical connection port 13 and the second electrical connection port 23 controls the illumination of the plurality of illumination modules 32.

Referring to FIG. 5, when the telescopic LED tube is to be mounted on a smaller-sized lamp holder 4', the outer tube 1 and the inner tube 2 are relatively displaced to make the first electrical connection of the outer tube 1. The second electrical connection port 23 of the inner tube 2 and the second electrical connection port 23 of the inner tube 2 are respectively latched on the second electrical connection port 41' of the socket 4', and the LED flexible strip 3 is suspended from the outer tube 1 and The inner tube 2 is suspended in the space 26. its In the process in which the first electrical connection port 13 and the second electrical connection port 23 are gradually approaching, the soft strip 31 of the LED flexible strip 3 is also gradually bent and deformed, but is subjected to the plurality of frame blocks 25 Restricting, the soft strip 31 is not turned over, so as to maintain the plurality of light emitting modules 32 to project light toward a predetermined direction; further, since the soft strip 31 is deformed in an arc shape, the soft strip 31 is The plurality of light-emitting modules 32 are less likely to be overlapped and shielded, so that the illumination of the telescopic LED tube is hardly reduced.

In summary, the telescopic LED tube of the present invention can change the length of the lamp tube to be suitable for different specifications of the lamp holder, and when the length of the lamp tube is reduced, it can also be effectively activated by a soft strip that is curved and curved. Reducing the overlapping shielding of the light-emitting module, the illumination of the telescopic LED tube is hardly changed; therefore, the telescopic LED tube of the present invention consumes the same energy regardless of length and length, and provides similar illumination, so The illumination provided by the unit of energy can be maintained.

While the invention has been described in connection with the preferred embodiments described above, it is not intended to limit the scope of the invention. The technical scope of the invention is protected, and therefore the scope of the invention is defined by the scope of the appended claims.

〔this invention〕

1‧‧‧External management

11‧‧‧Open end

12‧‧‧closed end

13‧‧‧First electrical connection埠

14‧‧‧ Guidance Department

2‧‧‧Inside

21‧‧‧ open end

22‧‧‧closed end

23‧‧‧Second electrical connection埠

24‧‧ ‧ slip section

25‧‧‧Box

26‧‧‧suspension space

27‧‧‧ accommodating space

3‧‧‧LED flexible strip

31‧‧‧ soft strip

32‧‧‧Lighting module

4‧‧‧ lamp holder

4'‧‧‧ lamp holder

41‧‧‧Electrical connection埠

41’‧‧‧Electrical connection埠

42‧‧‧ Controller

42’‧‧‧ controller

[prior art]

9‧‧‧Retractable tube

91‧‧‧External management

92‧‧‧Inner management

93‧‧‧First lighting unit

94‧‧‧second lighting unit

Figure 1: Schematic diagram of the structure of a conventional telescopic tube.

Figure 2 is a perspective exploded view of a preferred embodiment of the present invention.

Figure 3 is a schematic view (I) of the preferred embodiment of the present invention.

Figure 4: Section 3 of Figure 4-4.

Figure 5 is a schematic view showing the implementation of a preferred embodiment of the present invention (2).

1‧‧‧External management

13‧‧‧First electrical connection埠

2‧‧‧Inside

23‧‧‧Second electrical connection埠

3‧‧‧LED flexible strip

31‧‧‧ soft strip

32‧‧‧Lighting module

4'‧‧‧ lamp holder

41’‧‧‧Electrical connection埠

42’‧‧‧ controller

Claims (7)

A telescopic LED lamp comprises: an outer tube, one end is provided with a first electrical connection; an inner tube is slidably extending through the outer tube at one end and a second electrical connection at the other end. And an LED flexible strip disposed in the outer tube and the inner tube, and the two ends of the LED flexible strip are respectively connected to the first electrical connection port and the second electrical connection port; wherein the inner tube is There are a plurality of frame limiting pieces, and the plurality of frame limiting frames limit a hanging space to accommodate the LED flexible strip. The telescopic LED tube of claim 1, wherein the inner circumferential surface of the outer tube is provided with at least one guiding portion in the axial direction, and the outer circumferential surface of the inner tube is provided with a corresponding sliding direction in the axial direction. The sliding portion of the inner tube is slidably abutted against the guiding portion of the outer tube. The telescopic LED tube of claim 2, wherein the number of the guiding portions of the outer tube is two, and the number of the sliding portions of the inner tube corresponds to two. The telescopic LED tube of claim 2, wherein the guiding portion is a rib, and the sliding portion is a corresponding groove. The telescopic LED tube of claim 2, wherein the guiding portion is a groove, and the sliding portion is a corresponding rib. The telescopic LED tube of claim 1, wherein the number of the plurality of frame limiting pieces is two, and the two frame limiting pieces are oppositely arranged at a center of a cross section of the inner tube. . The telescopic LED tube of claim 1, wherein the number of the plurality of frame limiting pieces is three, wherein the two frame limiting pieces are oppositely disposed at a center of a cross section of the inner tube. The other frame limiting piece is disposed on the top side of the two opposite frame limiting pieces, and the outermost frame limiting piece and the inner circumferential ring of the inner tube enclose an accommodating space.