LED lamp tube capable of adjusting light and color temperature

Abstract

The utility model discloses an LED lamp tube capable of adjusting light and color temperature, which comprises a lamp tube, a first lamp holder assembly and a second lamp holder assembly are respectively arranged at two ends of the lamp tube, and a driving plate and an LED lamp panel electrically connected with the driving plate are arranged in the lamp tube. The first lamp holder assembly comprises a first connecting cover, an adjusting switch, a first insulating plate and a first connecting part, and the first connecting cover is fixedly connected with the lamp tube; the first insulating plate is arranged in the first connecting cover, an adjusting groove is formed in the first insulating plate, and the adjusting end of the adjusting switch is located in the adjusting groove; the control end of the adjusting switch is located in the first connecting cover and electrically connected with the driving plate. The first connecting part is arranged on the first insulating plate and is used for electrically connecting the driving plate with an external mechanism; according to the LED lamp tube, the adjusting switch is arranged in the first lamp cover instead of being exposed in the environment, the possibility that the adjusting switch is abnormal can be effectively reduced, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lighting devices, in particular to an LED lamp tube capable of adjusting light and color temperature. Background Art

[0002] T8 LED tube is a kind of LED fluorescent tube, it uses CREE and AOD ultra-bright LED white light as the light source, the shell is usually made of acrylic or aluminum alloy, the outer cover is mostly made of PC cover, and different light transmittance and appearance can be selected; it has the advantages of high efficiency and energy saving, green environmental protection, long life and wide application, and is often used in key lighting places such as car display, jewelry, high-end clothing, professional windows, counters, home lighting, hotel lighting decoration, etc.

[0003] At present, some T8 LED lamps have the functions of dimming and color temperature adjustment. However, the switches for adjusting the power and color temperature are generally set on the lamp head, that is, exposed outside the lamp head. The switches are easily disturbed by the external environment, such as dust, moisture, vibration, etc. These environmental factors may affect the sensitivity and service life of the switch, and even cause the switch to malfunction, increasing the repair and maintenance cost of T8 LED lamps.

[0004] It can be seen that the existing technology still needs to be improved and enhanced. Utility Model Content

[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide an LED lamp tube with dimmable light and color temperature, which can effectively reduce the possibility of abnormal problems in the adjustment switch and reduce the repair and maintenance costs.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A LED lamp tube with dimmable light and color temperature, comprising a lamp tube, wherein a first lamp holder assembly and a second lamp holder assembly are respectively arranged at two ends of the lamp tube, wherein a driving board and an LED lamp board electrically connected to the driving board are arranged inside the lamp tube; the first lamp holder assembly comprises a first connection cover, an adjustment switch, a first insulating plate and a first connection portion, wherein the first connection cover is fixedly connected to the lamp tube; the first insulating plate is arranged inside the first connection cover, an adjustment groove is provided on the first insulating plate, and an adjustment end of the adjustment switch is located in the adjustment groove; a control end of the adjustment switch is located in the first connection cover and is electrically connected to the driving board; the first connection portion is arranged on the first insulating plate, and the first connection portion is used to realize electrical connection between the driving board and an external mechanism.

[0008] In the dimmable color temperature LED lamp tube, a first fixing seat is provided on the first connection cover, the first insulating plate is arranged in the first fixing seat, and a switch gasket is arranged between the control end of the adjustment switch and the first insulating plate.

[0009] In the dimmable and color temperature-adjustable LED lamp tube, the first connecting part includes two first copper needles, two first through holes are provided on the first insulating plate, the two first copper needles are respectively matched and connected with the two first through holes, and the two first copper needles are respectively electrically connected with the driving board; a limiting ring is provided on the first copper needle, and the diameter of the limiting ring is greater than the diameter of the first through hole.

[0010] In the LED lamp tube with adjustable light and color temperature, a first positioning platform is arranged in the first connection cover, and the first positioning platform abuts against the lamp tube.

[0011] In the LED lamp tube with adjustable light and color temperature, the lamp tube is a glass lamp tube, and the outer surface of the glass lamp tube is covered with a high-transmittance film.

[0012] In the dimmable color temperature adjustable LED lamp tube, a plurality of LED lamp beads are evenly arranged on the LED lamp board, and the LED lamp board is fixedly connected to the inner wall of the glass lamp tube by means of heat conductive adhesive.

[0013] In the dimmable color temperature LED lamp tube, the LED lamp board is an aluminum substrate lamp board, and the model of the high-transmittance film is two-color 15YNS2.

[0014] In the LED lamp tube with adjustable light and color temperature, a plurality of first heat dissipation holes are provided on the first connection cover.

[0015] Beneficial effects:

[0016] The utility model provides an LED lamp tube with adjustable light and color temperature. The adjustment switch is arranged in a first lamp cover instead of being exposed to the environment, which can effectively reduce the possibility of abnormal problems of the adjustment switch, extend the service life of the adjustment switch, and reduce the repair and maintenance costs; further, the adjustment switch is connected to the first connection cover through an insulating plate, which can effectively isolate the current in the circuit, prevent dangers such as circuit short circuit or electric shock, and improve the stability and safety of the LED lamp tube during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the LED lamp tube provided by the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the LED lamp provided by the utility model after the lamp tube is removed;

[0019] Figure 3 A schematic diagram of an exploded structure of an embodiment of a first lamp holder assembly provided by the utility model;

[0020] Figure 4 A schematic diagram of an exploded structure of another embodiment of the first lamp holder assembly provided by the utility model;

[0021] Figure 5 This is a structural schematic diagram of the first lamp holder assembly and the driving board provided by the utility model.

[0022] Explanation of main component symbols: 1-lamp tube, 2-first lamp holder assembly, 21-first connecting cover, 211-first fixing seat, 212-first positioning platform, 213-first heat dissipation hole, 22-adjustment switch, 23-first insulating plate, 231-adjustment groove, 232-first through hole, 24-first copper needle, 241-limiting ring, 25-switch gasket, 3-second lamp holder assembly, 4-driving board, 5-LED lamp board, 51-LED lamp bead. DETAILED DESCRIPTION

[0023] The utility model provides an LED lamp tube with adjustable light and color temperature. In order to make the purpose, technical solution and effect of the utility model clearer and more specific, the utility model is further described in detail below with reference to the accompanying drawings and examples.

[0024] In the description of the present invention, it should be understood that the terms "installation", "connection" and the like should be understood in a broad sense. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] See also Figure 1 The utility model provides an LED lamp tube with dimmable light and color temperature, comprising a lamp tube 1, wherein a first lamp holder assembly 2 and a second lamp holder assembly 3 are respectively arranged at two ends of the lamp tube 1, a driving board 4 and an LED lamp board 5 electrically connected to the driving board 4 are arranged in the lamp tube 1; the first lamp holder assembly 2 comprises a first connecting cover 21, an adjustment switch 22, a first insulating plate 23 and a first connecting portion, the first connecting cover 21 is fixedly connected to the lamp tube 1; the first insulating plate 23 is arranged in the first connecting cover 21, an adjustment groove 231 is opened on the first insulating plate 23, and the adjustment end of the adjustment switch 22 is located in the adjustment groove 231; the control end of the adjustment switch 22 is located in the first connecting cover 21, and the control end of the adjustment switch 22 is electrically connected to the driving board 4; the first connecting portion is arranged on the first insulating plate 23, and the first connecting portion is used to realize the electrical connection between the driving board 4 and an external mechanism.

[0026] The present application discloses an LED lamp tube with dimmable light and color temperature. The adjustment switch 22 is arranged in the first lamp cover instead of being exposed to the environment, which can effectively reduce the possibility of abnormal problems of the adjustment switch 22, extend the service life of the adjustment switch 22, and reduce the repair and maintenance costs; further, the adjustment switch 22 is connected to the first connecting cover 21 through an insulating plate, which can effectively isolate the current in the circuit, prevent dangers such as circuit short circuit or electric shock, and improve the stability and safety of the LED lamp tube during operation.

[0027] In this embodiment, the first connection cover 21 is an aluminum connection cover, and the adjustment switch 22 is a dial switch; the driving board 4 is a prior art, and a plurality of control chips are arranged on the driving board 4, and the control chip can be a control chip of the STM32 series. The driving circuit of the existing LED lamp tube is printed on the driving board 4, and the driving circuit can realize the power adjustment and color temperature adjustment of the LED lamp board 5 according to the gear signal fed back by the adjustment switch 22, that is, different gears of the adjustment switch 22 correspond to different powers and color temperatures, thereby improving the flexibility of the LED lamp tube during operation; in one embodiment, the driving board 4 is glued to the first connection cover 21.

[0028] For further information, see Figures 3 to 5 A first fixing seat 211 is provided on the first connection cover 21 , the first insulating plate 23 is disposed in the first fixing seat 211 , and a switch gasket 25 is provided between the control end of the adjustment switch 22 and the first insulating plate 23 .

[0029] In this embodiment, the first fixing seat 211 and the first connecting cover 21 are integrally formed. By setting the first fixing seat 211, the first insulating plate 23 can be quickly positioned and installed, and the displacement problem of the first insulating plate 23 during the operation of the LED lamp tube can be avoided, thereby ensuring the insulation isolation effect between the first copper needle 24 and the adjustment switch 22 and the aluminum first connecting cover 21.

[0030] In this embodiment, the switch gasket 25 can be a rubber gasket. By setting the switch gasket 25, the electrical isolation effect between the adjustment switch 22 and the aluminum first connecting cover 21 can be further enhanced. By setting the switch gasket 25, the adjustment switch 22 can more accurately control the on and off of the circuit on the driving board 4, and ensure that the LED lamp board 5 is in a completely unpowered state when the circuit is disconnected, effectively reducing the risk of electric shock.

[0031] For further information, see Figure 3 and Figure 4The first connecting part includes two first copper needles 24, and two first through holes 232 are opened on the first insulating plate 23. The two first copper needles 24 are respectively matched and connected with the two first through holes 232, and the two first copper needles 24 are respectively electrically connected with the driving board 4; a limiting ring 241 is provided on the first copper needle 24, and the diameter of the limiting ring 241 is greater than the diameter of the first through hole 232.

[0032] In this embodiment, the external mechanism can be an external power supply device, such as an electrical socket; by providing a limiting ring 241, the first copper needle 24 and the first connecting cover 21 can be quickly positioned and installed to improve assembly efficiency, and the first copper needle 24 can be prevented from detaching from the first connecting cover 21, ensuring that the electrical connection relationship is stable and effective; in one embodiment, the limiting ring 241 and the first copper needle 24 are integrally formed.

[0033] For further information, see Figure 3 and Figure 5 A first positioning platform 212 is disposed in the first connection cover 21 , and the first positioning platform 212 abuts against the lamp tube 1 .

[0034] In this embodiment, the first positioning platform 212 and the first connecting cover 21 are integrally formed; when the LED lamp tube is assembled, the first positioning platform 212 abuts against one end of the lamp tube 1, that is, by setting the first positioning platform 212, the first connecting cover 21 and the lamp tube 1 can be quickly positioned and installed to avoid excessive squeezing of the lamp tube 1 during the assembly process and to improve the assembly efficiency.

[0035] In this embodiment, a buffer pad may be provided between the first positioning platform 212 and the lamp tube 1. The buffer pad may be a rubber pad, and the buffer pad is glued to the first positioning platform 212. Providing the buffer pad can reduce the pressure on the lamp tube 1 during the assembly process, avoid problems such as cracking and damage of the lamp tube 1, improve the yield rate in the production process, and indirectly reduce the production cost.

[0036] In this embodiment, the structure of the second lamp head assembly 3 can be consistent with the structure of the first lamp head assembly 2, and the adjustment switch 22 of the first lamp head assembly 2 can be set to adjust the color temperature, and the adjustment switch 22 of the second lamp head assembly 3 can be set to adjust the working power of the LED light board 5.

[0037] In other embodiments, the adjustment switch 22 for adjusting the color temperature and the working power can be arranged on the first lamp holder assembly 2, and the second lamp holder assembly 3 includes a second connecting cover, a second insulating plate and two second copper needles. The second connecting cover is fixedly connected to the lamp tube 1, and a second fixing seat is arranged in the second connecting cover. The second insulating plate is arranged in the second fixing seat. Two second through holes are provided on the second insulating plate, and the two second copper needles are respectively matched and connected with the two second through holes; the structure of the second copper needle is consistent with the structure of the first copper needle 24.

[0038] Furthermore, the lamp tube 1 is a glass lamp tube, and the outer surface of the glass lamp tube is covered with a high-transmittance film.

[0039] In this embodiment, the outer surface of the glass lamp tube is covered with a high-transmittance film, so that the light output by the LED lamp board 5 can be fully irradiated into the environment, effectively improving the light intensity of the lamp tube 1 and reducing light loss; in addition, the glass lamp tube has the characteristics of high temperature resistance and easy heat dissipation, and can effectively dissipate the heat generated by the LED lamp board 5 when working into the air, avoiding overheating problems and improving the safety and stability of the LED lamp tube when working.

[0040] For further information, see Figure 2 A plurality of LED lamp beads 51 are evenly arranged on the LED lamp board 5 to improve the uniformity of the light emission of the LED lamp board 5; the LED lamp board 5 is fixedly connected to the inner wall of the glass lamp tube through thermal conductive adhesive, and the LED lamp board 5 is attached to the inner wall of the glass lamp tube through thermal conductive adhesive. The heat generated by the LED lamp beads 51 when working is directly dissipated into the ambient air through the glass lamp tube, which can effectively reduce the working temperature of the LED lamp tube, and the overall heat dissipation effect of the LED lamp tube is good.

[0041] Furthermore, the LED lamp board 5 is an aluminum substrate lamp board. The aluminum substrate has the advantages of high heat dissipation, low thermal resistance, long life and high pressure resistance. The aluminum substrate lamp board is attached to the inner wall of the glass lamp tube, which can effectively transfer the heat emitted by the LED lamp beads 51 to the glass lamp tube; the model of the high-transmittance film is two-color 15YNS2.

[0042] For further information, see Figure 4 , a plurality of first heat dissipation holes 213 are formed on the first connection cover 21 .

[0043] In this embodiment, two first heat dissipation holes 213 are provided on the first connection cover 21; by providing the first heat dissipation holes 213, the heat generated by the driving board 4 during operation can be dissipated into the ambient air, thereby avoiding overheating of the driving board 4 and improving the safety and stability of the LED lamp during operation.

[0044] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and the utility model concept of the utility model, and all these changes or substitutions should fall within the protection scope of the utility model.

Claims

1. An LED lamp tube with adjustable light and color temperature, characterized in that: It includes a lamp tube, wherein a first lamp holder assembly and a second lamp holder assembly are respectively arranged at two ends of the lamp tube, a driving board and an LED lamp board electrically connected to the driving board are arranged in the lamp tube; the first lamp holder assembly includes a first connecting cover, an adjustment switch, a first insulating plate and a first connecting portion, the first connecting cover is fixedly connected to the lamp tube; the first insulating plate is arranged in the first connecting cover, an adjustment groove is opened on the first insulating plate, and the adjustment end of the adjustment switch is located in the adjustment groove; the control end of the adjustment switch is located in the first connecting cover and is electrically connected to the driving board; the first connecting portion is arranged on the first insulating plate, and the first connecting portion is used to realize the electrical connection between the driving board and an external mechanism.

2. The LED lamp tube with adjustable light and color temperature according to claim 1, characterized in that: A first fixing seat is provided on the first connection cover, the first insulating plate is arranged in the first fixing seat, and a switch gasket is arranged between the control end of the adjustment switch and the first insulating plate.

3. The LED lamp tube with adjustable light and color temperature according to claim 1, characterized in that: The first connecting part includes two first copper needles, two first through holes are provided on the first insulating plate, the two first copper needles are respectively matched and connected with the two first through holes, and the two first copper needles are respectively electrically connected with the driving board; a limiting ring is provided on the first copper needle, and the diameter of the limiting ring is greater than the diameter of the first through hole.

4. The LED lamp tube with adjustable light and color temperature according to claim 1, characterized in that: A first positioning platform is disposed in the first connection cover, and the first positioning platform abuts against the lamp tube.

5. The LED lamp tube with adjustable light and color temperature according to claim 1, characterized in that: The lamp tube is a glass lamp tube, and the outer surface of the glass lamp tube is covered with a high-transmittance film.

6. The LED lamp tube with adjustable light and color temperature according to claim 5, characterized in that: A plurality of LED lamp beads are evenly arranged on the LED lamp board, and the LED lamp board is fixedly connected to the inner wall of the glass lamp tube through heat-conducting glue.

7. The LED lamp tube with adjustable light and color temperature according to claim 5, characterized in that: The LED light board is an aluminum substrate light board, and the model of the high-transmittance film is two-color 15YNS2.

8. The LED lamp tube with adjustable light and color temperature according to claim 1, characterized in that: The first connection cover is provided with a plurality of first heat dissipation holes.

Images