Tubular lamp

Abstract

The utility model provides a tubular lamp, which belongs to the technical field of illumination, the tubular lamp comprises an outer tube, a heat dissipation piece, a light source plate, a driving plate and two plugging pieces, the heat dissipation piece is installed in the outer tube, and the heat dissipation piece is provided with an installation groove; the light source plate is arranged in the mounting groove; the driving plate is arranged in the outer tube, and the driving plate is electrically connected with the light source plate; the two blocking pieces are arranged at the two ends of the outer pipe, each blocking piece stretches into the outer pipe and is connected with the heat dissipation piece, the end face of each blocking piece is flush with the end face of the outer pipe, and each blocking piece is provided with a connecting pin electrically connected with the driving plate. According to the tubular lamp provided by the utility model, the length of the outer tube is equal to that of the whole lamp when viewed from the front side, and the plugging piece is wrapped by the outer tube when viewed from the side surface, so that the light-emitting area is increased, the tubular lamp is more attractive when viewed from the outside, the light-emitting area is larger in use, and the lighting effect is optimized.

Description

Technical Field

[0001] The utility model belongs to the technical field of lighting, and in particular relates to a tube-shaped lamp. Background Art

[0002] Fluorescent tubes are a commonly used lighting tool with a very large user base. With the continuous evolution of user needs, most commonly used fluorescent tubes are LED fluorescent tubes. This type of tube includes a lampshade, plugs at both ends of the lampshade, and a light source module arranged in the lampshade. The plugs at both ends of the existing tube clamp the lampshade in the middle. The plugs at both ends are long, which greatly compresses the light output area of ​​the lampshade. For example, the light output area of ​​a 1.2-meter tube is only 1 meter, or even shorter. Utility Model Content

[0003] The embodiment of the utility model provides a tubular lamp, which aims to solve the technical problem that the structure of the existing lamp tube causes the light output area to be greatly shortened.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is to provide a tubular lamp, comprising:

[0005] External control;

[0006] A heat sink is installed in the outer tube, and a mounting groove is provided on the heat sink;

[0007] a light source board, disposed in the mounting groove;

[0008] a driving board, disposed in the outer tube, the driving board being electrically connected to the light source board;

[0009] Two blocking members are provided at both ends of the outer tube, each blocking member extends into the interior of the outer tube and is connected to the heat sink, the end face of the blocking member is flush with the end face of the outer tube, and the blocking member has a connecting pin electrically connected to the driving board.

[0010] In a possible implementation, the inner wall of the outer tube is provided with a first sliding groove and a clamping groove extending along its own axial direction, the heat sink is slidably fitted in the first sliding groove, and the drive plate is clamped in the clamping groove.

[0011] In a possible implementation, a limiting groove is provided at one end of the blocking member facing the driving plate, and a rib is provided in the outer tube for engaging with the limiting groove.

[0012] In a possible implementation, the inner wall of the outer tube is protruded with a plurality of ridges, the space between two adjacent ridges forms the first sliding groove or the clamping groove, and one of the ridges forms the rib.

[0013] In a possible implementation, fixing plates are protruding from two opposite sides of the inner wall of the outer tube, and both fixing plates are attached to the heat dissipation element.

[0014] In a possible implementation, a side of the blocking member facing the heat dissipation member is provided with an abutment portion, and the abutment portion abuts against an end surface of the heat dissipation member.

[0015] In a possible implementation, the blocking member has an end cap extending out of the outer tube, the end cap abuts against an end surface of the outer tube, and an outer circumferential surface of the end cap is flush with an outer circumferential surface of the outer tube.

[0016] In a possible implementation, the outer circumference of the sealing member is provided with a protruding edge, the end of the outer tube has a groove adapted to the protruding edge, the protruding edge is located in the groove, and the outer circumference of the protruding edge is flush with the outer circumference of the outer tube.

[0017] In a possible implementation, an end of the blocking member facing away from the outer tube is provided with a rim, and the rim is sleeved around the outer circumference of the outer tube.

[0018] In a possible implementation, a through hole is provided on the driving plate, and a hook that cooperates with the through hole is provided on one end of the blocking member facing the driving plate.

[0019] Compared with the prior art, the solution shown in the embodiment of the present application is that the outer tube of the lamp of this structure is equal to the length of the entire lamp when viewed from the front, and the blocking piece is wrapped in the outer tube when viewed from the side. Therefore, a 1.2-meter-sized lamp can use a 1.2-meter outer tube, which increases the light-emitting area, makes it more beautiful in appearance, and has a larger light-emitting area during use, thereby optimizing the lighting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the main structure of the tubular lamp provided in Example 1 of the present utility model;

[0021] Figure 2 For the Figure 1 Schematic diagram of the cross-sectional structure along line AA;

[0022] Figure 3 This is a side structural diagram of the tubular lamp provided in Example 1 of the present utility model;

[0023] Figure 4 For the Figure 3 Schematic diagram of the cross-sectional structure along the middle BB line;

[0024] Figure 5 This is a schematic cross-sectional view of the outer tube used in Example 1 of the present utility model;

[0025] Figure 6This is a cross-sectional schematic diagram of the heat sink used in the first embodiment of the present utility model;

[0026] Figure 7 This is a schematic diagram of the three-dimensional structure of the blocking member used in the second embodiment of the present utility model;

[0027] Figure 8 This is a schematic diagram of the assembly structure of the blocking member and the outer tube used in the second embodiment of the present utility model;

[0028] Figure 9 This is a schematic diagram of the three-dimensional structure of the blocking member used in the third embodiment of the present utility model;

[0029] Figure 10 This is a schematic diagram of the assembly structure of the blocking member and the outer tube used in the third embodiment of the present utility model;

[0030] Figure 11 This is a schematic diagram of the three-dimensional structure of the blocking member used in the fourth embodiment of the present utility model;

[0031] Figure 12 This is a schematic diagram of the assembly structure of the blocking member and the outer tube used in the fourth embodiment of the present utility model.

[0032] Description of reference numerals:

[0033] 10-outer tube; 11-first chute; 12-slot; 13-rib; 14-fixing plate;

[0034] 20-heat sink; 21-mounting slot; 22-first slide bar; 23-second slide bar; 24-convex plate; 25-stop bar; 26-connection hole;

[0035] 30-light source board;

[0036] 40-driving plate; 41-perforation;

[0037] 50 - blocking member; 51 - connecting needle; 52 - limiting groove; 53 - countersunk hole; 54 - connecting member; 55 - abutment portion; 56 - end cover; 57 - raised edge; 58 - edging; 59 - hook. DETAILED DESCRIPTION

[0038] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0039] In the claims, description and the above-mentioned drawings of the present utility model, unless otherwise clearly defined, the use of terms such as "first", "second" or "third" is to distinguish different objects rather than to describe a specific order.

[0040] Unless otherwise expressly defined, the directional words in the claims, specification and the above-mentioned drawings of the present invention, such as the terms "upper", "lower", "top", "bottom", "front", "back", "inside", "outside", "center", "transverse", "longitudinal", "horizontal", "vertical", "left", "right", "clockwise", "counterclockwise", "high", "low", etc., indicating directions or positional relationships are based on the directions and positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the specific scope of protection of the present invention.

[0041] In the claims, specification and the above drawings of the present utility model, unless otherwise clearly defined, if the terms "fixed connection" or "fixed connection" are used, they should be understood in a broad sense, that is, any connection method without any displacement relationship and relative rotation relationship between the two parties, that is to say, including non-detachable fixed connection, detachable fixed connection, integral connection and fixed connection through other devices or elements.

[0042] In the claims, description and drawings of the present utility model, if the terms "include", "have" and their variations are used, they are intended to mean "including but not limited to".

[0043] Please also refer to Figures 1 to 12 The tubular lamp provided by the present invention is now described. The tubular lamp comprises an outer tube 10, a heat sink 20, a light source board 30, a driver board 40, and two blocking members 50. The heat sink 20 is mounted within the outer tube 10 and is provided with a mounting slot 21. The light source board 30 is disposed within the mounting slot 21. The driver board 40 is disposed within the outer tube 10 and is electrically connected to the light source board 30. The two blocking members 50 are disposed at both ends of the outer tube 10. Each blocking member 50 extends into the interior of the outer tube 10 and is connected to the heat sink 20. The end faces of the blocking members 50 are flush with the end faces of the outer tube 10. The blocking members 50 have connection pins 51 that are electrically connected to the driver board 40.

[0044] Compared with the prior art, the tubular lamp provided in this embodiment has an outer tube 10 of the same length as the entire lamp when viewed from the front, and a blocking member 50 is wrapped in the outer tube 10 when viewed from the side. Therefore, a 1.2-meter-sized lamp can use a 1.2-meter-long outer tube 10, which increases the light-emitting area, makes it more beautiful in appearance, and also increases the light-emitting area during use, thereby optimizing the lighting effect.

[0045] In some embodiments, an improved embodiment of the outer tube 10 can be as follows Figures 4 and 5 The structure shown. Figures 4 and 5The inner wall of the outer tube 10 is provided with a first slide groove 11 and a clamping groove 12 extending along its own axis. The heat sink 20 slides in the first slide groove 11, and the drive plate 40 snaps into the clamping groove 12. The heat sink 20 and the drive plate 40 are both pushed into the outer tube 10 for installation, which is simple to operate, can shorten assembly time, and improve production efficiency.

[0046] It should be noted that the first sliding groove 11 and the clamping groove 12 are both axially continuous with the outer tube 10 , so when the heat sink 20 or the driving plate 40 is installed, it only needs to be inserted from one end of the outer tube 10 .

[0047] In addition, the mounting groove 21 also penetrates along the axial direction of the outer tube 10 , and the light source board 30 is also installed into the mounting groove 21 by pushing.

[0048] In some embodiments, a specific matching method between the blocking member 50 and the outer tube 10 can be as follows: Figure 2 、 Figure 4 、 Figure 7 、 Figure 9 、 Figure 11 The structure shown. Figure 2 、 Figure 4 、 Figure 7 、 Figure 9 、 Figure 11 The end of the blocking member 50 facing the drive plate 40 is provided with a retaining groove 52, and a rib is provided within the outer tube 10 to engage with the retaining groove 52. After the blocking member 50 is installed, the rib on the inner wall of the outer tube 10 extends into the retaining groove 52, which can position the blocking member 50 and prevent the blocking member 50 from rotating in the circumferential direction. This makes the installed blocking member 50 more stable and less likely to move.

[0049] In some embodiments, a specific embodiment of the outer tube 10 can be as follows Figures 4 and 5 The structure shown. Figures 4 and 5 The inner wall of the outer tube 10 is provided with a plurality of protruding ridges 13. The space between two adjacent protruding ridges 13 forms a first chute 11 or a retaining groove 12, and one of the protruding ridges 13 forms a rib. By providing the protruding ridges 13 to form the first chute 11 and the retaining groove 12, compared to directly grooves in the inner wall of the outer tube 10, this embodiment allows the use of a thinner outer tube 10. This not only enhances the brightness of the lighting but also reduces the amount of molding material used in the outer tube 10, thereby saving costs. By increasing the length of one of the protruding ridges 13 during the molding process to form a rib, compared to providing a rib in addition to the multiple protruding ridges 13, the structure of the outer tube 10 can be simplified, making the manufacture of the outer tube 10 more convenient.

[0050] In a specific implementation, the ridges 13 can be set to three or four. When the number of the ridges 13 is three, the space between each two adjacent ridges 13 forms a groove; when the number of the ridges 13 is four, the space between two adjacent ridges 13 forms a first slide groove 11, and the space between the other two adjacent ridges 13 forms a card groove 12.

[0051] In some embodiments, an improved embodiment of the outer tube 10 can be as follows Figures 4 and 5 The structure shown. Figures 4 and 5 The outer tube 10 has two fixing plates 14 protruding from opposite sides of the inner wall. Both fixing plates 14 are attached to the heat sink 20. The fixing plates 14 not only improve the stability of the heat sink 20 by being attached to the heat sink 20, but also enhance the optical reflection effect and improve the optical effect of the entire lamp by reflecting the light from the light source panel 30 when it emits light.

[0052] Specific light reflection diagram reference Figure 4 (The red lines are the lighting paths).

[0053] As a specific implementation of the fixing plate 14, the topmost ridge 13 can be extended obliquely upward to form the fixing plate 14. The fixing plate 14, the ridge 13, and the outer tube 10 can be integrally formed and can be made of the same material or different materials, but the reflective effect of the fixing plate 14 must be guaranteed.

[0054] In some embodiments, an improved embodiment of the heat dissipation element 20 may be as follows: Figure 4 and Figure 6 The structure shown. Figure 4 and Figure 6 The heat sink 20 includes a first slide bar 22 that engages with the first slide groove 11, and a second slide bar 23 spaced below the first slide bar 22. The first and second slide bars 22 and 23 together form a second slide groove, with one of the protrusions 13 slidably engaging with the second slide groove. The first slide bar 22 engages with the first slide groove 11, and one of the protrusions 13 engages with the second slide groove, thereby limiting the position of the heat sink 20 in the vertical direction, preventing the heat sink 20 from sliding and affecting the light output of the light source panel 30.

[0055] In some embodiments, a specific embodiment of the heat dissipation element 20 may be as follows: Figure 4 and Figure 6 The structure shown. Figure 4 and Figure 6The heat sink 20 is provided with two spaced-apart protrusions 24. The space between the two protrusions 24 forms the aforementioned mounting slot 21. The surfaces of the protrusions 24 are parallel to the axial direction of the outer tube 10, and the two protrusions 24 are parallel to each other. The protrusions 24 can be located on the top of the heat sink 20. The top surface of the heat sink 20 supports the light source board 30, dissipating heat from the light source board 30 and extending the service life of the light source board 30. The two protrusions 24 position the light source board 30 on either side to ensure stable installation. When the light source board 30 is installed in the mounting slot 21, a certain amount of friction is generated between the protrusions 24, preventing it from falling out of the mounting slot 21 during transportation.

[0056] Specifically, in order to improve the installation stability of the light source board 30, a baffle 25 is also provided on the top of each protrusion 24. The baffle 25 is used to limit the top of the light source board 30. The baffle 25 cooperates with the protrusion 24 and the top surface of the heat sink 20 to achieve positioning of the light source board 30 on all sides, thereby preventing the light source board 30 from falling out.

[0057] In a specific implementation, the fixing sheet 14 not only fits the side surface of the heat sink 20 , but also fits the side surface of the protruding plate 24 , thereby increasing the contact area with the heat sink 20 and improving the installation stability of the heat sink 20 .

[0058] In the embodiments of the present application, the terms "top" and "bottom" are used interchangeably. Figure 4 The directions are the same as those marked in .

[0059] In some embodiments, an improved embodiment of the heat dissipation element 20 may be as follows: Figure 4 The structure shown. Figure 4 The heat sink 20 has a connection hole 26 with openings at both ends and on the sidewall. The blocking member 50 is equipped with a connector 54, which penetrates the blocking member 50 and engages with the connection hole 26. The connector 54 can be a bolt, a latch, etc. When the connector 54 is screwed into the connection hole 26, the opening in the sidewall of the connection hole 26 allows the connector 54 to be slightly deformed during the screwing process, thereby facilitating the installation of the connector 54 and simplifying the assembly difficulty.

[0060] For a more aesthetically pleasing appearance, a countersunk hole 53 is provided on the blocking member 50 , and the connecting member 54 extends into the countersunk hole 53 and does not protrude from the end surface of the blocking member 50 facing away from the driving plate 40 .

[0061] In some embodiments, an improved embodiment of the above-mentioned blocking member 50 can be as follows Figure 2 、 Figure 7 、 Figure 9 、 Figure 11 The structure shown. Figure 2 、 Figure 7 、 Figure 9 、 Figure 11The blocking member 50 is provided with an abutting portion 55 on the side facing the heat sink 20, and the abutting portion 55 abuts against the end face of the heat sink 20. After the two blocking members 50 are installed at both ends of the outer tube 10, the abutting portion 55 on one blocking member 50 abuts against one end of the heat sink 20, and the abutting portion 55 on the other blocking member 50 abuts against the other end of the heat sink 20, thereby fixing the heat sink 20 and preventing the heat sink 20 from shaking along the axial direction of the outer tube 10.

[0062] In some embodiments, an improved embodiment of the blocking member 50 may be as follows: Figures 7 and 8 The structure shown. Figures 7 and 8 The sealing member 50 includes an end cap 56 that extends beyond the outer tube 10. The end cap 56 abuts against the end surface of the outer tube 10, and the outer circumference of the end cap 56 is flush with the outer circumference of the outer tube 10. Because the sealing member 50 is inserted into the interior of the outer tube 10, the thickness of the end cap 56 can be set as narrow as possible. By providing the end cap 56, the length of the sealing member 50 extending into the outer tube 10 during installation can be limited.

[0063] In order to reduce the step difference caused by manufacturing precision, an aesthetic gap may be provided between the end cap 56 and the outer tube 10 , or the diameter of the end cap 56 may be slightly smaller than the outer diameter of the outer tube 10 .

[0064] In some embodiments, a modified embodiment of the blocking member 50 may be as follows: Figures 9 and 10 The structure shown. Figures 9 and 10 The outer circumference of the plugging member 50 is provided with a protruding flange 57. The end of the outer tube 10 has a groove that matches the protruding flange 57. The protruding flange 57 is located within the groove, and the outer circumference of the protruding flange 57 is flush with the outer circumference of the outer tube 10. The protruding flange 57 is not provided on the entire outer circumference of the plugging member 50. For example, half of the outer circumference is provided with the protruding flange 57, while the other half is not provided with the protruding flange 57. This allows the outer tube 10 to extend outward, achieving a more integrated light emission. By aligning the protruding flange 57 with the groove on the outer tube 10, the installation process of the plugging member 50 can also be foolproofed, ensuring that the connector 54 on the plugging member 50 aligns with the connection hole 26 on the heat sink 20 after installation.

[0065] In order to reduce the step difference caused by manufacturing precision, an aesthetic seam may be provided between the flange 57 and the outer tube 10 , or the diameter of the flange 57 may be slightly smaller than the outer diameter of the outer tube 10 .

[0066] In some embodiments, a modified embodiment of the blocking member 50 may be as follows: Figures 11 to 12 The structure shown. Figures 11 to 12The end of the blocking member 50 facing away from the outer tube 10 is provided with a rim 58, which is sleeved around the outer circumference of the outer tube 10. Because the blocking member 50 is inserted into the interior of the outer tube 10, the thickness of the rim 58 can be set as narrow as possible. By providing the rim 58, the installation of the blocking member 50 can be more reliable. The width of the rim 58 can exceed more than half of the exposed thickness of the blocking member 50.

[0067] In some embodiments, an improved matching method between the driving plate 40 and the blocking member 50 can be as follows: Figure 2 The structure shown. Figure 2 The drive plate 40 is provided with a through-hole 41, and the end of the blocking member 50 facing the drive plate 40 is provided with a hook 59 that cooperates with the through-hole 41. After the blocking member 50 is installed, the hook 59 is hooked on the through-hole 41, which can hang the drive plate 40, limit the axial movement of the drive plate 40 in the outer tube 10, and improve the stability of the assembly.

[0068] In some embodiments, a specific electrical connection method for the driver board 40 can employ the following structure (not shown). The input and output lines on the driver board 40 are located on the same side. The input line is a hard bare metal wire bent into an L shape and inserted into the driver board 40 via automated equipment. The other end contacts the connecting pin 51 on the blocking member 50 to achieve electrical connection. The hard bare metal wire can be copper, copper-clad steel, aluminum-clad steel, etc. Hard bare metal wire is easier to insert into the connecting pin 51 than a flexible power cord, improving assembly efficiency.

[0069] It should be noted that the female terminals on the light source board 30 are soldered to the light source board 30 through reflow soldering, and the input wires on the light source board 30 use double-layer insulated wires or add sleeves for protection to prevent the wires from being cut or scratched at the corners.

[0070] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A tubular lamp, characterized in that: include: External control; A heat sink is installed in the outer tube, and a mounting groove is provided on the heat sink; a light source board, disposed in the mounting groove; a driving board, disposed in the outer tube, the driving board being electrically connected to the light source board; Two blocking members are provided at both ends of the outer tube, each blocking member extends into the interior of the outer tube and is connected to the heat sink, the end face of the blocking member is flush with the end face of the outer tube, and the blocking member has a connecting pin electrically connected to the driving board.

2. The tubular lamp according to claim 1, wherein: The inner wall of the outer tube is provided with a first sliding groove and a clamping groove extending along the axial direction thereof. The heat dissipating element is slidably fitted in the first sliding groove, and the driving plate is clamped in the clamping groove.

3. The tubular lamp according to claim 2, wherein: A limiting groove is provided on one end of the blocking member facing the driving plate, and a rib is provided in the outer tube to engage with the limiting groove.

4. The tubular lamp according to claim 3, wherein: The inner wall of the outer tube is protruded with a plurality of convex strips, the space between two adjacent convex strips forms the first sliding groove or the clamping groove, and one of the convex strips forms the rib.

5. The tubular lamp according to claim 1, wherein: Two opposite sides of the inner wall of the outer tube are protruded with fixing plates, and both fixing plates are attached to the heat dissipation element.

6. The tubular lamp according to claim 1, wherein: The blocking member is provided with an abutting portion on a side facing the heat dissipation member, and the abutting portion abuts against an end surface of the heat dissipation member.

7. The tubular lamp according to claim 1, wherein: The blocking member has an end cover extending out of the outer tube, the end cover abuts against the end surface of the outer tube, and the outer peripheral surface of the end cover is flush with the outer peripheral surface of the outer tube.

8. The tubular lamp according to claim 1, wherein: The outer circumference of the blocking piece is protruded with a convex edge, the end of the outer tube has a groove adapted to the convex edge, the convex edge is located in the groove, and the outer circumference of the convex edge is flush with the outer circumference of the outer tube.

9. The tubular lamp according to claim 1, wherein: An end of the blocking member facing away from the outer tube is provided with a rim, and the rim is sleeved on the outer circumference of the outer tube.

10. The tubular lamp according to claim 1, wherein: The driving plate is provided with a through hole, and the blocking member is provided with a hook matched with the through hole at one end facing the driving plate.

Images