Explosion-proof LED lamp tube

Abstract

The utility model relates to an anti-explosion LED lamp tube. The problems that in the prior art, a lamp tube is prone to cracking, and safety is poor are solved. The LED lamp tube comprises a lamp tube substrate, a power connection seat and a heat dissipation seat are arranged at the two ends of the lamp tube substrate respectively, an LED lamp strip is connected between the power connection seat and the heat dissipation seat in an inserted mode, an anti-explosion shell assembly located on the outer side of the LED lamp strip in the circumferential direction is connected between the power connection seat and the heat dissipation seat, and a heat dissipation channel is arranged between the inner side of the anti-explosion shell assembly in the circumferential direction and the outer side of the LED lamp strip in the circumferential direction. The two ends of the heat dissipation channel are provided with a heat conduction structure making contact with the LED lamp strip and a positioning type heat extraction pressure reduction assembly respectively. The explosion-proof lamp has the advantages of being stable in structure, capable of effectively dissipating heat, good in explosion-proof effect and good in safety.

Description

Technical Field

[0001] The utility model relates to the technical field of lamps, in particular to an explosion-proof LED lamp tube. Background Art

[0002] With the general improvement of energy conservation awareness, the promotion of current LED energy-saving lamps has been very popular. Compared with ordinary incandescent lamps, due to their excellent energy-saving effect, they are highly praised by the majority of users. There are many types of LED energy-saving lamps, and a large part of them are filled with gas inside the lamp tube. The most common one is the mercury vapor lamp, such as an ordinary fluorescent lamp tube. Although this kind of lamp has good energy-saving effect, once the lamp tube is broken and the gas leaks, it will cause serious health damage to the indoor residents. When the LED lamp is used for a long time, a high-temperature and high-pressure environment is likely to be formed inside the LED lamp tube. When a certain high-temperature and high-pressure value is reached, it is easy to burst and damage, which not only reduces the service life, but also has poor safety.

[0003] In order to solve the deficiencies of the existing technology, people have carried out long-term exploration and put forward various solutions. For example, a Chinese patent document discloses an explosion-proof lamp tube [CN201120359062.3], which includes a lamp socket and a lamp tube. The lamp socket includes a lamp core and an electrical structure, and the lamp tube includes a glass tube coated with phosphor and an explosion-proof film attached to the outer surface of the glass tube. This explosion-proof lamp tube is used in energy-saving lamps. It can not only accommodate working gas, but also is difficult to burst, and can prevent the working gas from leaking when the lamp tube is damaged.

[0004] The above solution solves the problem of gas leakage in the existing fluorescent lamp tube to a certain extent, but there are still many deficiencies in this solution. For example, a high-temperature and high-pressure environment is likely to be formed inside the lamp tube during long-term use. When a certain high-temperature and high-pressure value is reached, it is easy to burst and damage, which not only reduces the service life, but also has poor safety. Summary of the Invention

[0005] The purpose of the utility model is to provide an explosion-proof LED lamp tube for the above problems.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme: an explosion-proof LED lamp tube, including a lamp tube substrate, an electricity connection seat and a heat dissipation seat are respectively arranged at both ends of the lamp tube substrate, an LED lamp strip is inserted between the electricity connection seat and the heat dissipation seat, an explosion-proof housing assembly is connected between the electricity connection seat and the heat dissipation seat and is located on the circumferential outer side of the LED lamp strip, a heat dissipation path is arranged between the circumferential inner side of the explosion-proof housing assembly and the circumferential outer side of the LED lamp strip, and a heat conduction structure and a positioning heat dissipation and pressure relief component that are in contact with the LED lamp strip are respectively arranged at both ends of the heat dissipation path.

[0007] In the above explosion-proof LED lamp tube, an explosion-proof insulating sleeve is sleeved on the circumferential outer side of the electricity connection seat, and a condensation sheet is arranged on the heat dissipation seat.

[0008] In the above-mentioned explosion-proof LED lamp tube, the explosion-proof housing assembly includes an outer housing body and an inner housing body that are transparently arranged, and the above-mentioned heat dissipation path is formed between the outer housing body and the inner housing body. Metal explosion-proof parts are respectively connected to both ends of the outer housing body and the inner housing body, and one end of the metal explosion-proof part far away from the outer housing body is connected to the lamp tube substrate.

[0009] In the above-mentioned explosion-proof LED lamp tube, a heat conduction sheet is embedded in the lamp tube substrate. The heat conduction sheet is connected to the outer wall of the LED lamp strip through a lamp tube clamping part, and the lamp tube clamping part is a heat conduction part.

[0010] In the above-mentioned explosion-proof LED lamp tube, the positioning type heat dissipation and pressure relief assembly includes an annular pressure discharge and heat dissipation structure for connecting one end of the LED lamp strip. The inner circumference of the annular pressure discharge and heat dissipation structure is in communication with the heat dissipation path, and a screw rod pressure discharge structure is connected to one side of the annular pressure discharge and heat dissipation structure far away from the LED lamp strip. The screw rod pressure discharge structure penetrates through the heat dissipation seat.

[0011] In the above-mentioned explosion-proof LED lamp tube, the annular pressure discharge and heat dissipation structure includes a pressure discharge and heat dissipation seat arranged in an annular shape. A positioning hole is provided at the axis of the pressure discharge and heat dissipation seat, and a heat conduction pressure discharge cylinder connected to one end of the LED lamp strip is inserted in the positioning hole. A plurality of heat dissipation channels communicated with the positioning hole are provided on the inner circumference of the pressure discharge and heat dissipation seat. The heat dissipation channels are in communication with the heat dissipation path, and the end of the heat dissipation path extends to the outside of the heat dissipation seat.

[0012] In the above-mentioned explosion-proof LED lamp tube, the screw rod pressure discharge structure includes a pressure discharge hole provided on the pressure discharge and heat dissipation seat. The pressure discharge hole is in communication with the positioning hole through a pressure guiding channel. A pressure discharge screw is threadedly connected to the pressure discharge hole, and a pressure relief channel is axially provided on the inner circumference of the pressure discharge screw. One end of the pressure relief channel far away from the pressure discharge hole extends to the outside of the heat dissipation seat.

[0013] In the above-mentioned explosion-proof LED lamp tube, a plurality of through holes for pressure relief are provided on the circumference of one end of the heat conduction pressure discharge cylinder connected to the LED lamp strip.

[0014] In the above-mentioned explosion-proof LED lamp tube, a fastening nut is provided at one end of the pressure discharge screw located on the outer wall of the heat dissipation seat, and limiting washers are provided at the positions of both the outer wall and the inner wall of the heat dissipation seat.

[0015] In the above-mentioned explosion-proof LED lamp tube, the heat conduction structure includes a heat conduction contact part clamped on the outer wall of the LED lamp strip. The heat conduction contact part is connected to a heat conduction transition part arranged on the outer wall of the inner housing body through a movable connecting rod, and the heat conduction transition part is in close contact with the heat dissipation path.

[0016] Compared with the existing technologies, the advantages of the present utility model are as follows: The structure is stable, the explosion-proof effect is good, and it can effectively dissipate the high temperature in the inner shell to achieve the purpose of temperature reduction. Secondly, the air pressure in the inner shell is continuously decompressed, so as to maintain the normal temperature and pressure working environment of the LED light strip, extend the service life, and it is not easy to burst, with good safety performance. Brief Description of the Drawings

[0017] Figure 1 is the overall structure schematic diagram of the present utility model;

[0018] Figure 2 is the sectional view of the present utility model;

[0019] Figure 3 is the structure schematic diagram of the pressure relief and heat dissipation seat in the present utility model;

[0020] Figure 4 is the structure schematic diagram of the pressure relief and heat dissipation seat from another perspective in the present utility model;

[0021] Figure 5 is the sectional view of the heat dissipation seat in the present utility model;

[0022] Figure 6 is the structure schematic diagram of the pressure relief screw in the present utility model;

[0023] In the figures: lamp tube substrate 1, power connection seat 11, explosion-proof insulating sleeve 111, heat dissipation seat 12, condensation sheet 121, LED light strip 13, heat conduction sheet 14, lamp tube clamping member 15, explosion-proof housing assembly 2, outer housing 21, inner housing 22, metal explosion-proof part 23, heat dissipation path 3, heat conduction structure 4, heat conduction contact part 41, movable connecting rod 42, heat conduction transition part 43, positioning type heat dissipation and pressure relief assembly 5, annular pressure relief and heat dissipation structure 51, pressure relief and heat dissipation seat 511, positioning hole 512, heat conduction pressure relief cylinder 513, heat dissipation channel 514, screw pressure relief structure 52, pressure relief hole 521, pressure relief screw 522, pressure relief channel 523, through hole 524, fastening nut 525, limit retaining piece 526, pressure guiding channel 527. Detailed Description of the Preferred Embodiments

[0024] The following further elaborates on the present utility model in detail in conjunction with the drawings and specific embodiments.

[0025] As Figure 1-6As shown in the figure, an explosion-proof LED lamp tube includes a lamp tube substrate 1. Electric connection seats 11 and heat dissipation seats 12 are respectively arranged at both ends of the lamp tube substrate 1. An LED lamp strip 13 is inserted between the electric connection seat 11 and the heat dissipation seat 12. An explosion-proof housing assembly 2 located on the circumferential outer side of the LED lamp strip 13 is connected between the electric connection seat 11 and the heat dissipation seat 12. A heat dissipation path 3 is provided between the circumferential inner side of the explosion-proof housing assembly 2 and the circumferential outer side of the LED lamp strip 13. Heat conduction structures 4 and a positioning type heat exhaust and pressure relief assembly 5 that are in contact with the LED lamp strip 13 are respectively arranged at both ends of the heat dissipation path 3.

[0026] Among them, an explosion-proof insulating sleeve 111 is sleeved on the circumferential outer side of the electric connection seat 11, and a condensation fin 121 is arranged on the heat dissipation seat 12.

[0027] The explosion-proof insulating sleeve 111 is used to prevent explosion and electric leakage. The condensation fin 121 is used to cool the heat conduction fin 14, and the condensation fin 121 is externally connected to a refrigeration device.

[0028] Obviously, the explosion-proof housing assembly 2 includes an outer housing body 21 and an inner housing body 22 that are transparently arranged. The above-mentioned heat dissipation path 3 is formed between the outer housing body 21 and the inner housing body 22. Metal explosion-proof parts 23 are respectively connected to both ends of the outer housing body 21 and the inner housing body 22. One end of the metal explosion-proof part 23 away from the outer housing body 21 is connected to the lamp tube substrate 1.

[0029] Such a setting not only provides an efficient lighting range and is not prone to light dispersion, but also can suppress the explosion range even if the outer housing body 21 and the inner housing body 22 burst.

[0030] Visibly, a heat conduction fin 14 is embedded in the lamp tube substrate 1. The heat conduction fin 14 is connected to the outer wall of the LED lamp strip 13 through a lamp tube clamping part 15, and the lamp tube clamping part 15 is a heat conduction part. Such a setting can efficiently cool the working environment of the LED lamp strip 13 and itself.

[0031] Furthermore, the positioning type heat exhaust and pressure relief assembly 5 includes an annular pressure exhaust and heat dissipation structure 51 for connecting one end of the LED lamp strip 13. The circumferential inner side of the annular pressure exhaust and heat dissipation structure 51 is communicated with the heat dissipation path 3. A screw pressure exhaust structure 52 is connected to the side of the annular pressure exhaust and heat dissipation structure 51 away from the LED lamp strip 13. The screw pressure exhaust structure 52 penetrates through the heat dissipation seat 12.

[0032] Specifically, the annular pressure exhaust and heat dissipation structure 51 includes an annular pressure exhaust and heat dissipation seat 511. A positioning hole 512 is provided at the axis of the pressure exhaust and heat dissipation seat 511. A heat conduction pressure exhaust cylinder 513 connected to one end of the LED lamp strip 13 is inserted into the positioning hole 512. A plurality of heat dissipation channels 514 communicated with the positioning hole 512 are provided on the circumferential inner side of the pressure exhaust and heat dissipation seat 511. The heat dissipation channels 514 are communicated with the heat dissipation path 3. The end of the heat dissipation path 3 extends to the outside of the heat dissipation seat 12.

[0033] The annular pressure - discharging and heat - dissipating structure 51 is mainly used to discharge the high - temperature gas in the inner housing 22 to the outside, that is, the high - temperature gas sequentially passes through the heat - conducting pressure - discharging cylinder 513, the heat - dissipating channel 514, and the heat - dissipating path 3 and is discharged to the outside.

[0034] Furthermore, the screw pressure - discharging structure 52 includes a pressure - discharging hole 521 provided on the pressure - discharging and heat - dissipating seat 511. The pressure - discharging hole 521 is interconnected with the positioning hole 512 through a pressure - guiding channel 527. A pressure - discharging screw 522 is thread - connected to the pressure - discharging hole 521, and a pressure - reducing channel 523 is axially provided on the inner circumferential side of the pressure - discharging screw 522. One end of the pressure - reducing channel 523 away from the pressure - discharging hole 521 extends to the outside of the heat - dissipating seat 12.

[0035] The screw pressure - discharging structure 52 is used to relieve the pressure in the high - pressure environment of the inner housing 22.

[0036] More specifically, several pressure - relieving through - holes 524 are provided in the circumferential direction at one end of the heat - conducting pressure - discharging cylinder 513 connected to the LED light strip 13.

[0037] In detail, a fastening nut 525 is provided at one end of the pressure - discharging screw 522 located on the outer wall of the heat - dissipating seat 12, and limiting shims 526 are provided at the positions on both the outer wall and the inner wall of the heat - dissipating seat 12.

[0038] The limiting shims 526 are used to fix the pressure - discharging screw 522, and here, the heat - dissipating seat 12 and the power - connecting seat 11 are adhesively sealed and connected to the explosion - proof housing assembly 2.

[0039] Preferably, the heat - conducting structure 4 includes a heat - conducting contact part 41 clamped on the outer wall of the LED light strip 13. The heat - conducting contact part 41 is connected to a heat - conducting transition part 43 provided on the outer wall of the inner housing 22 through a movable connecting rod 42, and the heat - conducting transition part 43 is in close contact with the heat - dissipating path 3.

[0040] To sum up, the principle of this embodiment is as follows: The explosion - proof housing assembly 2 is used to prevent the occurrence of explosion caused by high temperature and high pressure. Secondly, when a high - temperature and high - pressure environment gradually forms on the inner circumferential side of the inner housing 22, the high - temperature gas is first discharged through the annular pressure - discharging and heat - dissipating structure 51, and then the screw pressure - discharging structure 52 is activated to relieve the pressure. In the case of extremely high temperature, the condensation sheet 121 conducts heat to the heat - conducting sheet 14 and the lamp tube clamping part 15 to achieve rapid temperature reduction, thereby preventing the lamp tube from bursting.

[0041] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0042] Although terms such as lamp tube substrate 1, power connection base 11, explosion-proof insulating sleeve 111, heat dissipation base 12, condensation sheet 121, LED light strip 13, heat conduction sheet 14, lamp tube clamping part 15, explosion-proof housing assembly 2, housing body 21, inner housing body 22, metal explosion-proof part 23, heat dissipation path 3, heat conduction structure 4, heat conduction contact part 41, movable connecting rod 42, heat conduction transition part 43, positioning type heat dissipation and pressure relief assembly 5, annular pressure relief and heat dissipation structure 51, pressure relief and heat dissipation base 511, positioning hole 512, heat conduction pressure relief cylinder 513, heat dissipation channel 514, screw pressure relief structure 52, pressure relief hole 521, pressure relief screw 522, pressure relief channel 523, through hole 524, fastening nut 525, limit stop piece 526, pressure conduction channel 527, etc. are used more in this text, it does not exclude the possibility of using other terms. Using these terms is only for more convenient description and explanation of the essence of the present utility model; interpreting them as any additional limitation is contrary to the spirit of the present utility model.

Claims

1. An explosion-proof LED tube, comprising a tube substrate (1), wherein power connection seats (11) and heat dissipation seats (12) are respectively arranged at two ends of the tube substrate (1), and an LED light strip (13) is inserted between the power connection seats (11) and the heat dissipation seats (12), characterized in that, An explosion-proof housing assembly (2) located on the circumferential outer side of the LED light strip (13) is connected between the power connection base (11) and the heat dissipation base (12). A heat dissipation path (3) is provided between the circumferential inner side of the explosion-proof housing assembly (2) and the circumferential outer side of the LED light strip (13). Heat conduction structures (4) and a positioning type heat dissipation and pressure relief assembly (5) that are in contact with the LED light strip (13) are respectively provided at both ends of the heat dissipation path (3).

2. An explosion-proof LED lamp tube according to claim 1, characterized in that, An explosion-proof insulating sleeve (111) is sleeved on the circumferential outer side of the power connection base (11), and a condensation fin (121) is provided on the heat dissipation base (12).

3. An explosion-proof LED lamp tube according to claim 1, wherein, The explosion-proof housing assembly (2) includes an outer housing body (21) and an inner housing body (22) that are transparently arranged. The above-mentioned heat dissipation path (3) is formed between the outer housing body (21) and the inner housing body (22). Metal explosion-proof parts (23) are respectively connected to both ends of the outer housing body (21) and the inner housing body (22), and one end of the metal explosion-proof part (23) far from the outer housing body (21) is connected to the lamp tube substrate (1).

4. An explosion-proof LED lamp tube according to claim 3, characterized in that, A heat conduction fin (14) is embedded in the lamp tube substrate (1). The heat conduction fin (14) is connected to the outer wall of the LED light strip (13) through a lamp tube clamping part (15), and the lamp tube clamping part (15) is a heat conducting part.

5. An explosion-proof LED lamp tube according to claim 1, wherein, The positioning type heat dissipation and pressure relief assembly (5) includes an annular pressure discharge and heat dissipation structure (51) for connecting one end of the LED light strip (13). The circumferential inner side of the annular pressure discharge and heat dissipation structure (51) is in communication with the heat dissipation path (3). A screw pressure discharge structure (52) is connected to the side of the annular pressure discharge and heat dissipation structure (51) far from the LED light strip (13), and the screw pressure discharge structure (52) penetrates through the heat dissipation base (12).

6. An explosion-proof LED lamp tube according to claim 5, characterized in that The annular pressure discharge and heat dissipation structure (51) includes a pressure discharge and heat dissipation base (511) arranged in a ring shape. A positioning hole (512) is provided at the axis of the pressure discharge and heat dissipation base (511), and a heat conduction pressure discharge cylinder (513) connected to one end of the LED light strip (13) is inserted in the positioning hole (512). A plurality of heat dissipation channels (514) that are in communication with the positioning hole (512) are provided on the circumferential inner side of the pressure discharge and heat dissipation base (511). The heat dissipation channels (514) are in communication with the heat dissipation path (3), and the end of the heat dissipation path (3) extends to the outside of the heat dissipation base (12).

7. An explosion-proof LED lamp tube according to claim 6, characterized in that, The screw pressure discharge structure (52) includes a pressure discharge hole (521) provided on the pressure discharge and heat dissipation base (511). The pressure discharge hole (521) is in communication with the positioning hole (512) through a pressure conduction channel (527). A pressure discharge screw (522) is threadedly connected to the pressure discharge hole (521), and a pressure relief channel (523) is axially provided on the circumferential inner side of the pressure discharge screw (522). One end of the pressure relief channel (523) far from the pressure discharge hole (521) extends to the outside of the heat dissipation base (12).

8. An explosion-proof LED lamp tube according to claim 7, characterized in that, A plurality of through holes (524) for pressure relief are provided on the circumference of one end of the heat conduction pressure discharge cylinder (513) connected to the LED light strip (13).

9. The explosion-proof LED lamp tube according to claim 8, wherein, One end of the pressure relief screw (522) located on the outer wall of the heat dissipation base (12) is provided with a fastening nut (525), and limiting flanges (526) are provided at the positions on both the outer wall and the inner wall of the heat dissipation base (12).

10. An explosion-proof LED tube according to claim 2, characterized in that, The heat conduction structure (4) includes a heat conduction contact part (41) clamped on the outer wall of the LED light bar (13). The heat conduction contact part (41) is connected to a heat conduction transition part (43) arranged on the outer wall of the inner shell (22) through a movable connecting rod (42), and the heat conduction transition part (43) is in close fit with the heat dissipation path (3).

Images