Lampshade and tubular lamp with same

Abstract

The utility model provides a lampshade and a tubular lamp with the lampshade, and belongs to the technical field of lighting, the lampshade comprises an outer tube and a heat dissipation piece, and fixing pieces are arranged on the two opposite sides of the inner wall of the outer tube in a protruding mode; the heat dissipation piece is installed in the outer pipe, an installation groove is formed in the heat dissipation piece, and the installation groove is used for installing a light source plate; wherein the two fixing pieces are attached to the heat dissipation piece and used for reflecting light rays of a light source plate. The tubular lamp comprises the lampshade. According to the lampshade and the tubular lamp with the lampshade, the fixing piece can be attached to the heat dissipation piece to improve the stability of the heat dissipation piece, light rays can be reflected when the light source plate emits light, the light emitting range in the circumferential direction of the outer tube is enlarged, the optical reflection effect is enhanced, and the optical effect of the whole lamp is improved; in addition, the fixing piece is attached to the heat dissipation piece, so that the stability of the heat dissipation piece after installation can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of lighting, and particularly relates to a lampshade and a tubular lamp having the same. Background Art

[0002] Fluorescent tubes are a commonly used lighting tool with a very large user base. As user needs continue to evolve, most commonly used fluorescent tubes are LED fluorescent tubes. This type of tube includes a lampshade, plugs arranged at both ends of the lampshade, and a light source module arranged inside the lampshade. When the light source module emits light, it only illuminates through the lampshade. The light emitting range of the lamp tube with this structure is narrow in the circumferential direction of the lampshade, which cannot meet the existing user needs for lighting. Utility Model Content

[0003] The embodiments of the present invention provide a lampshade and a tubular lamp having the same, aiming to solve the technical problem that the light output range of the light source module in the existing lamp tube is narrow in the circumferential direction of the lampshade and cannot meet the existing user's demand for lighting.

[0004] In a first aspect, an embodiment of the present invention provides a lampshade, comprising:

[0005] An outer tube, wherein fixing plates are protruding from opposite sides of the inner wall of the outer tube;

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

[0007] The two fixing plates are attached to the heat sink to reflect the light from the light source panel.

[0008] In combination with the first aspect, in a possible implementation, the inner wall of the outer tube is provided with a first sliding groove extending along its own axial direction, and the heat dissipation element is slidably fitted in the first sliding groove.

[0009] In combination with the first aspect, in a possible implementation, a plurality of ridges are protruding from the inner wall of the outer tube, and the space between two adjacent ridges forms the first sliding groove.

[0010] In combination with the first aspect, in a possible implementation, the heat sink has a first slide bar that cooperates with the first slide groove, and also has a second slide bar spaced below the first slide bar. The first slide bar and the second slide bar are combined to form a second slide groove, and one of the protrusions is slidably engaged with the second slide groove.

[0011] In combination with the first aspect, in a possible implementation, the plurality of convex strips are spaced apart in the up-down direction, and the fixing plate is fixed to the uppermost convex strip and is integrally formed with the convex strip.

[0012] In combination with the first aspect, in a possible implementation, the heat sink is provided with two spaced-apart convex plates, and the space between the convex plates forms the mounting groove.

[0013] In combination with the first aspect, in a possible implementation, a stop bar is further provided on the top of each of the protruding plates, and the stop bar is used to limit the top of the light source board.

[0014] In combination with the first aspect, in a possible implementation, the fixing sheet is respectively attached to the side surfaces of the heat sink and the convex plate.

[0015] In combination with the first aspect, in a possible implementation, the heat dissipation element is provided with a connection hole with both ends and side walls being open.

[0016] Compared with the prior art, the solution shown in the embodiment of the present application is that after the light source board is installed in the installation groove of the heat sink, the light emitted by the light source board will illuminate the outside world through the outer tube, and some of the light will be reflected by the inner wall of the outer tube to the fixing plate. The fixing plate is made of a reflective material, which will reflect the light again, so that the outer tube positions corresponding to the two fixing plates will also emit light. The fixing plate can not only be attached to the heat sink to improve the stability of the heat sink, but also reflect the light when the light source board emits light, expanding the light output range in the circumferential direction of the outer tube, enhancing the optical reflection effect, and improving the optical effect of the entire lamp. In addition, because the fixing plate is attached to the heat sink, the stability of the heat sink after installation can also be improved.

[0017] In a second aspect, an embodiment of the present invention further provides a tubular lamp comprising the above-mentioned lampshade. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure of the tubular lamp provided in Example 1 of the present utility model;

[0019] Figure 2 For the Figure 1 Schematic diagram of the cross-sectional structure along the AA line;

[0020] Figure 3 This is a side structural diagram of the tubular lamp provided in Example 1 of the present utility model;

[0021] Figure 4 For the Figure 3 Schematic diagram of the cross-sectional structure along the middle BB line;

[0022] Figure 5 This is a schematic cross-sectional view of the outer tube used in Example 1 of the present utility model;

[0023] Figure 6 This is a cross-sectional schematic diagram of the heat sink used in Example 1 of the present utility model;

[0024] 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;

[0025] 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;

[0026] 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;

[0027] 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;

[0028] 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;

[0029] 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.

[0030] 10-outer tube; 11-first chute; 12-slot; 13-rib; 14-fixing plate;

[0031] 20-heat sink; 21-mounting slot; 22-first slide bar; 23-second slide bar; 24-convex plate; 25-stop bar; 26-connection hole;

[0032] 30-light source board;

[0033] 40-driving plate; 41-perforation;

[0034] 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

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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".

[0040] Please also refer to Figures 4 to 6 The lampshade provided by the present invention is now described. The lampshade comprises an outer tube 10 and a heat sink 20. Fixing tabs 14 are protruding from opposite sides of the inner wall of the outer tube 10. The heat sink 20 is mounted within the outer tube 10 and has mounting slots 21 formed therein for mounting a light source board 30. The two fixing tabs 14 abut against the heat sink 20 to reflect light from the light source board 30.

[0041] Compared with the prior art, the lampshade provided in this embodiment has the following characteristics: after the light source board 30 is installed in the mounting groove 21 of the heat sink 20, the light emitted by the light source board 30 will illuminate the outside world through the outer tube 10, and part of the light will be reflected by the inner wall of the outer tube 10 onto the fixing plate 14. The fixing plate 14 is made of a reflective material, which will reflect the light again, so that the positions of the outer tube 10 corresponding to the two fixing plates 14 will also emit light. The fixing plate 14 can not only be attached to the heat sink 20 to improve the stability of the heat sink 20, but also reflect the light when the light source board 30 emits light, thereby expanding the light emission range in the circumferential direction of the outer tube 10, enhancing the optical reflection effect, and improving the optical effect of the entire lamp; and because the fixing plate 14 is attached to the heat sink 20, the stability of the heat sink 20 after installation can also be improved.

[0042] Specific light reflection diagram reference Figure 4 .

[0043] In some embodiments, a specific embodiment of the cooperation between the outer tube 10 and the heat sink 20 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 first slide groove 11 extending along its own axial direction, and the heat sink 20 is slidably fitted in the first slide groove 11. The heat sink 20 is slid into the outer tube 10 for installation, which is easy to operate, can shorten the assembly time and improve production efficiency.

[0044] 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 inner wall of the outer tube 10 is provided with a plurality of protruding strips 13, and the space between two adjacent protruding strips 13 forms a first chute 11. By providing the protruding strips 13 to form the first chute 11, compared with directly grooves in the inner wall of the outer tube 10, this embodiment can use a thinner outer tube 10, which not only enhances the brightness of the lighting but also reduces the amount of molding material used for the outer tube 10, thereby saving costs.

[0045] Two or more ridges 13 can be provided, and the multiple ridges 13 are spaced apart in the vertical direction. When the number of ridges 13 is greater than two, multiple first slide grooves 11 distributed along the vertical direction will be formed. When the heat sink 20 is installed, a suitable first slide groove 11 can be selected for installation, thereby changing the distance between the light source panel 30 installed on the heat sink 20 and the side wall of the outer tube 10, thereby realizing the adjustment of the light intensity and meeting the different lighting needs of users.

[0046] 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.

[0047] 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.

[0048] 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, preventing the light source board 30 from falling out.

[0049] 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 .

[0050] 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 .

[0051] As a specific embodiment of the fixing plate 14, the fixing plate 14 is fixed to the uppermost ridge 13 and is integrally formed with the ridge 13, or the fixing plate 14 is bonded to the ridge 13 for fixation, and the fixing plate 14 extends obliquely upward on the side of the ridge 13 away from the side wall of the outer tube 10. In addition, 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.

[0052] 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 is provided with a connection hole 26 with openings at both ends and on the sidewall. When the outer tube 10 is later assembled into a lamp, it is necessary to install a blocking piece 50 at both ends. A connecting piece 54 can be provided on the blocking piece 50. The connecting piece 54 passes through the blocking piece 50 and cooperates with the connection hole 26. The connecting piece 54 can be a bolt, a latch, etc. When the connecting piece 54 is screwed into the connection hole 26, due to the opening provided in the sidewall of the connection hole 26, a slight deformation can occur during the screwing process of the connecting piece 54, which facilitates the installation of the connecting piece 54 and simplifies the assembly difficulty.

[0053] For a more aesthetically pleasing appearance, the blocking member 50 is provided with a countersunk hole 53 , 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 .

[0054] Based on the same inventive concept, an embodiment of the present utility model further provides a tubular lamp comprising the above-mentioned lampshade.

[0055] The tubular lamp also includes a light source board 30, a driving board 40 and two sealing parts 50. The light source board 30 is arranged in the mounting groove 21; the driving board 40 is arranged in the outer tube 10, and the driving board 40 is electrically connected to the light source board 30; the two sealing parts 50 are arranged at both ends of the outer tube 10, each sealing part 50 extends into the interior of the outer tube 10 and is connected to the heat sink 20, the end face of the sealing part 50 is flush with the end face of the outer tube 10, and the sealing part 50 has a connecting pin 51 electrically connected to the driving board 40.

[0056] Specifically, when the drive plate 40 is installed, the ridges 13 on the outer tube 10 enclose a slot 12, and the drive plate 40 snaps into the slot 12. The slot 12 and the first chute 11 extend axially through the outer tube 10, so when installing the heat sink 20 or the drive plate 40, they only need to be inserted from one end of the outer tube 10.

[0057] 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.

[0058] 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 outer tube 10 can be selected for a lamp with a specification of 1.2 meters, 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.

[0059] 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.

[0060] By increasing the length of one of the ridges 13 during the molding process to form a rib, compared to providing a rib in addition to providing multiple ridges 13 , the structure of the outer tube 10 can be simplified and the manufacture of the outer tube 10 can be facilitated.

[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 11 The 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 12 The 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 in the figure, 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 lampshade, characterized in that: include: An outer tube, wherein fixing plates are protruding from opposite sides of the inner wall of the outer tube; A heat sink is installed in the outer tube, and a mounting groove is provided on the heat sink for mounting a light source board; The two fixing plates are attached to the heat sink to reflect the light from the light source panel.

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

3. The lampshade according to claim 2, wherein: The inner wall of the outer tube is provided with a plurality of protruding strips, and the space between two adjacent protruding strips forms the first sliding groove.

4. The lampshade according to claim 3, wherein The heat sink has a first slide bar that cooperates with the first slide groove, and also has a second slide bar spaced below the first slide bar. The first slide bar and the second slide bar are combined to form a second slide groove, and one of the protrusions is slidably engaged with the second slide groove.

5. The lampshade according to claim 3, wherein The plurality of convex strips are distributed at intervals along the up-down direction, and the fixing plate is fixedly connected to the uppermost convex strip and is integrally formed with the convex strip.

6. The lampshade according to claim 1, wherein The heat sink is provided with two spaced-apart convex plates, and the space between the convex plates forms the mounting groove.

7. The lampshade according to claim 6, wherein: A stop bar is further provided on the top of each convex plate, and the stop bar is used to limit the top of the light source board.

8. The lampshade according to claim 6, wherein The fixing plates are respectively attached to the side surfaces of the heat sink and the convex plate.

9. The lampshade according to claim 1, wherein The heat sink is provided with connection holes with both ends and side walls being open.

10. A tubular lamp, characterized in that: The lampshade comprises the lampshade according to any one of claims 1 to 9.

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