U-shaped LED tubular lamp

Abstract

The utility model discloses a U-shaped LED tube lamp. The U-shaped LED tube lamp comprises a U-shaped tube body, a light-emitting assembly, two lamp caps and a driving power source. Wherein the U-shaped pipe body comprises a bent section and two straight pipe sections; the light-emitting assembly is arranged in the U-shaped tube body and comprises a substrate and LED lamp beads arranged on the substrate. The two lamp holders comprise the first lamp holder and the second lamp holder which are fixed to the ends of the two straight pipe sections in a matched mode respectively, and the first lamp holder is of a split structure and is provided with a hollow conductive piece used for being connected with an external power source. And the driving power supply is provided with a conductive wire inserted into the inner cavity of the conductive part and fixedly connected with the conductive part. The first lamp holder is arranged to be of a split structure, when electric connection is needed, the first lamp holder is split and split into two short parts, at the moment, the conductive wire of the driving power source can be quickly and electrically connected with the conductive piece, and compared with the prior art, assembly is more convenient and faster.

Description

Technical Field

[0001] The present application relates to the field of lighting technology, and in particular to a U-shaped LED tube lamp. Background Art

[0002] LED lighting has many advantages such as long service life, small size, energy saving and power saving, etc., so it is widely used in the market and gradually replaces the existing incandescent lamps and fluorescent lamps.

[0003] In order to be applied to specific application environments, a document with publication number CN209415094U discloses a U-shaped LED lamp tube, which includes a lamp tube with a light strip inside and a lamp holder, wherein the light strip includes a substrate and a plurality of lamp beads arranged on the substrate, and a driving circuit is also arranged on the substrate. However, this type of lamp holder is overall longer and has a deeper internal depth, which is not conducive to electrical connection with a driving power supply. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a U-shaped LED tube lamp, comprising:

[0005] The U-shaped tube body comprises a curved section and two straight sections;

[0006] A light-emitting component is arranged inside the U-shaped tube body, comprising a substrate and LED lamp beads arranged on the substrate;

[0007] Two lamp caps, including a first lamp cap and a second lamp cap, are respectively fixed to the ends of the two straight tube sections, wherein the first lamp cap is a split structure and has a hollow conductive member for connecting to an external power source;

[0008] The driving power source comprises a conductive wire which is inserted into the inner cavity of the conductive member and fixedly connected thereto.

[0009] Several optional methods are also provided below, but they are not intended to be additional limitations on the above-mentioned overall solution, but are merely further supplements or preferences. Under the premise that there are no technical or logical contradictions, each optional method can be combined with the above-mentioned overall solution separately, and multiple optional methods can also be combined.

[0010] Optionally, the driving power source is arranged on the substrate.

[0011] Optionally, the portion of the substrate with the driving power supply is inserted into the cylinder of the first lamp holder.

[0012] Optionally, the first lamp holder comprises a cylinder and an end cover which are interlocked, and the conductive member is arranged on the end cover.

[0013] Optionally, the end cover is partially inserted into the cylinder, and a positioning structure is provided between the two.

[0014] Optionally, the positioning structure includes a positioning hole provided on the end cover and a positioning member provided on the inner side of the cylinder body, and the positioning hole and the positioning member cooperate to achieve axial limitation of the two.

[0015] Optionally, the positioning structure includes a positioning block provided on the end cover and a notch provided on the end of the cylinder, and the positioning block cooperates with the notch to achieve circumferential limitation of the two.

[0016] Optionally, a positioning ring is arranged on the inner circumference of the cylinder, and the straight pipe section extends into the cylinder to abut against the positioning ring for limiting position.

[0017] Optionally, it is characterized in that it includes a switch assembly, the switch assembly includes a circuit board fixed in the second lamp head and a toggle switch arranged on the circuit board, and the second lamp head is provided with a toggle button that interacts with the toggle switch.

[0018] Optionally, a side wall of the second lamp holder is provided with an escape opening for the dial button to pass through, and the dial button is slidably embedded in the escape opening.

[0019] The present application arranges the first lamp holder to be a split structure. When electrical connection is required, the first lamp holder is first split into two parts of shorter length. At this time, the conductive wire of the driving power supply can be electrically connected to the conductive part more quickly, making assembly more convenient and quicker than the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of a U-shaped LED tube lamp according to an embodiment of the present application;

[0021] Figure 2 for Figure 1 Exploded view of the medium U-shaped LED tube light;

[0022] Figure 3 for Figure 1 Cross-sectional view of the medium U-shaped LED tube light;

[0023] Figure 4 is a cross-sectional view of the second lamp cap;

[0024] Figure 5 is a cross-sectional view of the first lamp cap;

[0025] Figure 6 is a schematic diagram of the structure of the middle end cover of the first lamp cap;

[0026] Figure 7 This is a schematic diagram of the structure of two lamp holders with end covers and conductive parts omitted.

[0027] The reference numerals in the figures are described as follows:

[0028] 100, U-shaped tube body; 110, curved section; 120, straight tube section; 121, slot;

[0029] 200, light emitting component; 210, substrate;

[0030] 300, lamp holder; 310, first lamp holder; 320, barrel; 321, positioning member; 322, notch; 323, positioning ring; 324, positioning rib; 330, end cover; 331, conductive member; 332, positioning hole; 333, positioning block; 334, positioning opening; 340, second lamp holder; 341, dial button; 342, avoidance opening; 343, mounting groove; 344, limiting step; 345, reduced diameter portion; 350, connecting rod; 260, conductive wire;

[0031] 400, driving power supply;

[0032] 500, switch assembly; 510, circuit board; 520, toggle switch. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0034] It should be noted that when a component is referred to as being "connected" to another component, it may be directly connected to the other component or there may be a central component. When a component is referred to as being "disposed on" another component, it may be directly disposed on the other component or there may be a central component at the same time.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0036] In this application, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number or order of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0037] In this application, the terms "comprises" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a system, product or device comprising a series of units is not necessarily limited to those units explicitly listed, but may include other units not explicitly listed or inherent to these products or devices.

[0038] See also Figure 1 to Figure 7 An embodiment of the present application provides a U-shaped LED tube lamp, including a U-shaped tube body 100, a light-emitting component 200, two lamp holders 300, and a driving power supply 400. The U-shaped tube body 100 can be made of a light-transmitting high-quality PC material, and the lamp holder 300 can be made of a milky white high-quality PC material, and both reach a V0 flame retardant grade and pass the needle flame test.

[0039] The U-shaped tube body 100 includes a curved section 110 and two straight sections 120, and the curved section 110 and the two straight sections 120 can be fixed by ultrasonic welding. The light-emitting assembly 200 is arranged inside the U-shaped tube body 100, and includes a substrate 210 and LED lamp beads (not shown in the figure) arranged on the substrate 210. The substrate 210 is a metal substrate 210, such as aluminum, copper and other materials. In order to facilitate the fixing of the substrate 210, the inner wall of the straight section 120 also has a card slot 121 that cooperates with the substrate 210 to fix.

[0040] The two lamp caps 300 specifically include a first lamp cap 310 and a second lamp cap 340, which are respectively fixed to the ends of the two straight tube sections 120 (for example, they can be fixed by gluing). In the prior art, this type of lamp cap 300 is overall long and has a deep internal depth, which is not conducive to electrical connection with the driving power supply 400. In order to solve this problem, see Figure 2-3 as well as Figure 5 The first lamp holder 310 of the present application is a split structure and has a hollow conductive member 331 for connecting to an external power source. The driving power source 400 has a conductive wire 260 inserted into the inner cavity of the conductive member 331 and fixedly connected thereto.

[0041] When electrical connection is required, the first lamp holder 310 is first split into two shorter parts. At this time, the conductive wire 260 of the driving power supply 400 can be quickly electrically connected to the conductive member 331, which makes assembly more convenient and quicker than the prior art.

[0042] In this embodiment, if Figure 2-3 As shown, the driving power source 400 is disposed on the substrate 210 , and the portion of the substrate 210 with the driving power source 400 is inserted into the barrel 320 of the first lamp holder 310 .

[0043] See also Figure 2 to Figure 7The first lamp holder 310 includes a barrel 320 and an end cover 330 which are interlocked with each other. The conductive member 331 is arranged on the end cover 330. In order to facilitate the fixation of the two, the end cover 330 is partially inserted into the barrel 320, and a positioning structure is arranged between the two.

[0044] Specifically, the positioning structure includes a positioning hole 332 provided on the end cover 330 and a positioning member 321 provided on the inner side of the cylinder 320. The positioning hole 332 and the positioning member 321 cooperate to realize the axial positioning of the two. Considering that the positioning member 321 can enter the positioning hole 332, a guiding inclined surface facing the positioning hole 332 is also provided on the positioning member 321. The number of positioning members 321 and positioning holes 332 can be set according to demand. In this embodiment, the number of positioning members 321 and positioning holes 332 is 3 respectively. Considering the problem of uniform force, they are evenly arranged around the circumference.

[0045] To achieve circumferential limiting, see Figure 6-7 The positioning structure includes a positioning block 333 arranged on the end cover 330 and a notch 322 arranged on the end of the cylinder 320. The positioning block 333 cooperates with the notch 322 to achieve circumferential limitation of the two on the one hand, and plays a role of mark alignment on the other hand. During assembly, they can be aligned to quickly buckle the cylinder 320 and the end cover 330.

[0046] Of course, in order to further strengthen the circumferential limit, see Figure 5 to Figure 7 A plurality of positioning ribs 324 are arranged on the inner wall of the cylinder 320, and a positioning opening 334 cooperating with the positioning ribs 324 is opened on the end wall of the end cover 330. In the present embodiment, the number of the positioning ribs 324 is specifically 2, and they are arranged symmetrically, wherein the two positioning ribs 324 and the notch 322 are staggered in the circumferential direction.

[0047] In order to glue and fix the U-shaped tube body 100 at a predetermined position of the first lamp holder 310, a positioning ring 323 is arranged circumferentially inside the cylinder 320. When fixing is required, it is only necessary to apply glue and then extend the straight tube section 120 into the cylinder 320 to limit the position against the positioning ring 323 and wait for the glue to dry and fix.

[0048] See also Figure 2 to Figure 4 The U-shaped LED tube lamp further includes a switch assembly 500, which includes a circuit board 510 fixed in the second lamp holder 340 and a toggle switch 520 disposed on the circuit board 510. The second lamp holder 340 is provided with a toggle button 341 linked to the toggle switch 520. In order to facilitate the installation of the toggle button 341, a side wall of the second lamp holder 340 is provided with an avoidance opening 342 for the toggle button 341 to pass through, and the toggle button 341 is slidably embedded in the avoidance opening 342.

[0049] The second lamp holder 340 has an installation groove 343 for installing the circuit board 510 on its inner side, and has a reduced diameter portion 345 near the end thereof to form a limiting step 344, which can limit the movement of the circuit board 510. When installing, the circuit board 510 is placed in place along the installation groove 343 in the second lamp holder 340, and then the straight pipe section 120 and the second lamp holder 340 are sleeved, and at this time, the limiting step 344 cooperates with the straight pipe section 120 to clamp and fix the circuit board 510.

[0050] In the present application, the first lamp holder 310 and the second lamp holder 340 are fixed by a connecting rod 350, wherein the cylinder 320, the connecting rod 350 and the second lamp holder 340 in the first lamp holder 310 are integrally formed, thereby improving the structural stability of the two lamp holders 300 and even the U-shaped LED tube lamp.

[0051] When installing the U-shaped LED tube lamp of the present application, the light-emitting component 200 can be first placed into the straight tube section 120 and the curved section 110 along the slot 121 and fixed by ultrasonic welding. Then, the conductive wire 260 is electrically connected to the conductive member 331 (this step can be selected and arranged in sequence according to actual conditions). Then, the circuit board 510 of the switch component 500 is placed into place along the installation slot 343 of the second lamp holder 340. Then, the dial button 341 and the toggle switch 520 are used to fix them. Then, the U-shaped lamp tube and the lamp holder 300 are fixed with glue. Finally, the end cover 330 and the cylinder body 320 are snapped together to complete the installation.

[0052] The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification. When the technical features in different embodiments are embodied in the same figure, it can be regarded that the figure also discloses the combination examples of the various embodiments involved.

[0053] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. U-shaped LED tube light, characterized by: include: The U-shaped tube body comprises a curved section and two straight sections; A light-emitting component is arranged inside the U-shaped tube body, and comprises a substrate and LED lamp beads arranged on the substrate; Two lamp caps, including a first lamp cap and a second lamp cap, are respectively fixed to the ends of the two straight tube sections, wherein the first lamp cap is a split structure and has a hollow conductive member for connecting to an external power source; The driving power source comprises a conductive wire which is inserted into the inner cavity of the conductive member and fixedly connected thereto.

2. The U-shaped LED tube lamp according to claim 1, characterized in that: The driving power source is disposed on the substrate.

3. The U-shaped LED tube lamp according to claim 2, characterized in that: The portion of the substrate with the driving power supply is inserted into the cylinder of the first lamp holder.

4. The U-shaped LED tube lamp according to claim 1, characterized in that: The first lamp holder comprises a barrel and an end cover which are buckled with each other, and the conductive member is arranged on the end cover.

5. The U-shaped LED tube lamp according to claim 4, characterized in that: The end cover is partially inserted into the cylinder, and a positioning structure is arranged between the two.

6. The U-shaped LED tube lamp according to claim 5, characterized in that: The positioning structure comprises a positioning hole arranged on the end cover and a positioning piece arranged on the inner side of the cylinder body, and the positioning hole and the positioning piece cooperate to realize axial limitation of the two.

7. The U-shaped LED tube lamp according to claim 5, characterized in that: The positioning structure comprises a positioning block arranged on the end cover and a notch arranged on the end of the cylinder body, and the positioning block cooperates with the notch to achieve circumferential limitation of the two.

8. The U-shaped LED tube lamp according to claim 4, characterized in that: A positioning ring is arranged circumferentially inside the cylinder, and the straight pipe section extends into the cylinder to abut against the positioning ring for limiting position.

9. The U-shaped LED tube lamp according to claim 1, characterized in that: The invention comprises a switch assembly, wherein the switch assembly comprises a circuit board fixed in the second lamp holder and a toggle switch arranged on the circuit board, and the second lamp holder is provided with a toggle button linked with the toggle switch.

10. The U-shaped LED tube lamp according to claim 9, characterized in that: A clearance opening for the push button to pass through is provided on the side wall of the second lamp holder, and the push button is slidably embedded in the clearance opening.

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