Sealed warning light with high heat dissipation

Abstract

The present invention relates to a sealed warning light with high heat dissipation. At the bottom of the warning light unit, there is a bottom metal profile plate for realizing the series connection of multiple warning light units. At the bottom of the bottom shell of the warning light unit, there is a profile plate groove for installing the bottom metal profile plate. A number of lamp bodies are installed inside the bottom shell. The lamp body has a metal heat dissipation tail cover for the lamp board in the lamp body to contact and mount. The metal heat dissipation tail cover is provided with a heat conduction plate. A through hole is provided on the bottom shell, which is blocked by the bottom metal profile plate and is opposite to the profile plate groove. And a raised cylindrical enclosure is surrounded around the opening of the through hole inside the bottom shell. Through the cylindrical enclosure and the through hole, a waterproof and heat dissipation channel is formed. The heat conduction plate passes through the waterproof and heat dissipation channel and is in thermal contact with the bottom metal profile plate. There is a heat dissipation gap communicating the inside and outside of the bottom shell between the waterproof and heat dissipation channel and the heat conduction plate. Under this heat dissipation structure design, the heat dissipation performance of the sealed warning light can be effectively improved, and the sealed waterproof performance can be ensured.

Description

Technical Field

[0001] The invention relates to a vehicle-mounted warning light, in particular to a sealed vehicle-mounted warning light, and in particular to a heat dissipation structure of the sealed warning light. Background Art

[0002] Sealed warning lights are installed on the top of vehicles. To meet the needs of the use environment and to ensure the service life and reliability of the warning lights, the warning lights need good waterproof and sealing performance. This type of warning light is usually formed by installing multiple warning light units in series through profile plates. The warning light unit includes a shell formed by sealing and buckling the upper cover and the bottom shell. Several lamp bodies are arranged in the shell. Since the shell is required to have good sealing properties, the heat generated by each lamp body in the warning light unit is easy to accumulate inside the shell and cannot be discharged; the lamp body is in a high temperature environment for a long time, which also affects the service life and working stability; therefore, the existing sealed warning lights are in urgent need of improved technology that can take into account good sealing and waterproof performance while having good heat dissipation performance. Summary of the invention

[0003] Purpose of the invention: To overcome the defects of the prior art, the present invention provides a sealed warning light with high heat dissipation performance which ensures the sealing and waterproof performance while effectively improving the heat dissipation performance of the sealed warning light.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A sealed warning light with efficient heat dissipation comprises a plurality of warning light units and a bottom metal profile plate installed at the bottom of the warning light units to realize the series connection of the plurality of warning light units, the warning light units comprising an upper cover and a bottom shell which are sealed and buckled together, a profile plate groove is provided at the bottom of the bottom shell of the warning light unit, the bottom metal profile plate is installed in the profile plate groove, and a plurality of lamp bodies are installed in the bottom shell, characterized in that: the lamp body comprises a metal heat dissipation tail cover for contact and mounting of the lamp board in the lamp body, the metal heat dissipation tail cover is provided with a heat conduction plate, a through hole which is opposite to the profile plate groove and blocked by the bottom metal profile plate is provided on the bottom shell, and a raised cylindrical enclosure is surrounded at the opening of the through hole located inside the bottom shell, a waterproof heat dissipation channel is formed through the cylindrical enclosure and the through hole, the heat conduction plate passes through the waterproof heat dissipation channel and is in thermal contact with the bottom metal profile plate, and a heat dissipation gap which connects the inside of the bottom shell and the outside of the bottom shell is provided between the waterproof heat dissipation channel and the heat conduction plate.

[0006] By adopting the above technical solution, the heat generated by the lamp board in the lamp body can be conducted and output through the metal heat dissipation end cover. On the one hand, the metal heat dissipation end cover contacts the bottom metal profile plate through the heat conduction plate to achieve direct heat conduction and rapid conduction and discharge, avoiding heat accumulation inside the warning light unit. On the other hand, the metal heat dissipation end cover and the heat conduction plate it carries can increase the heat dissipation area, avoid accumulation inside the lamp body itself, and realize heat diffusion into the air and discharge through the heat discharge gap, effectively avoiding heat accumulation in the warning light unit. The inner opening of the through hole is provided with a raised cylindrical enclosure, thus forming a waterproof and heat dissipation channel. The through hole of the waterproof and heat dissipation channel corresponds to the bottom metal profile plate, and is shielded and protected by the bottom metal profile plate. Moreover, the waterproof and heat dissipation channel can increase the difficulty of water climbing, ensuring a good waterproof and sealing effect. Under this heat dissipation structure design, the heat dissipation performance of the sealed warning light can be effectively improved, realizing the rapid discharge of heat inside the lamp body and the housing of the warning light unit, and ensuring the waterproof and sealing performance.

[0007] Preferably, the heat conduction plate includes a "7"-shaped body. The "7"-shaped body includes a horizontally extending horizontal plate body. One end of the horizontal plate body is connected to the metal heat dissipation end cover, and the other end of the horizontal plate body is turned downward to form a vertical plate body. Screw holes are provided on the horizontal plate body of the "7"-shaped body, and screw hole columns are provided on the bottom case. The horizontal plate body of the "7"-shaped body is supported on the screw hole columns and the cylindrical enclosure, and the screw holes are inserted with locking screws screwed onto the screw hole columns to lock and fix the "7"-shaped body through the locking screws. Under this structural design, the heat conduction plate also has the function of installing and fixing the lamp body, and has the advantages of simple and compact structure and convenient installation of the lamp body.

[0008] Preferably, a relief hole connecting the screw hole is provided on the horizontal plate body of the "7"-shaped body. The opening of the relief hole connecting to the screw hole allows the rod portion of the locking screw to pass freely, and the relief hole allows the locking head of the locking screw to pass freely. The waterproof and heat dissipation channel has a moving space for the heat conduction plate to move in the waterproof and heat dissipation channel to realize the switching position of the locking screw between the relief hole and the screw hole. Under this structural design, the heat conduction plate can be directly inserted into the waterproof and heat dissipation channel. The relief hole corresponds to the position of the locking screw. The locking screw head passes through the relief hole, and then the lamp body is moved to move the locking screw to the position of the screw hole and tighten the locking screw to complete the installation, which has the advantage of convenient disassembly and assembly of the lamp body.

[0009] Preferably, the longitudinal plate of the "7"-shaped body has a convex head at the contact end with the bottom metal profile plate. The convex head protrudes toward the two connection ends of the metal heat dissipation tail cover and the longitudinal plate respectively in the extending direction of the transverse plate, and the arrangement directions of the relief holes and the screw holes are the same as the protruding direction of the convex head. When the locking screw slides into the screw hole from the relief hole, the convex head is inserted into the outer bottom surface of the bottom case through the corresponding position of the through hole to form a stop fit with the bottom case. Under this structural design, the convex head protruding at the contact end of the longitudinal plate of the "7"-shaped body and the bottom metal profile plate not only increases the contact area between the heat conduction plate and the bottom metal profile plate, but also when the heat conduction plate slides into and out of the screw locking position, the convex head is inserted into the bottom of the bottom case, making the installation of the lamp body more firm and reliable.

[0010] Preferably, convex ribs are provided on both lateral sides of the bottom surface of the "7"-shaped body. The convex ribs extend onto the metal heat dissipation tail cover. On the top surface of the cylindrical enclosure, there are notches corresponding to the convex ribs one by one. A convex platform is formed between the two notches on the top surface of the cylindrical enclosure. The convex ribs extend into the notches, and the corresponding convex platform extends into the space between the two convex ribs. Under this structural design, the convex ribs have a strengthening effect and at the same time have a positioning effect for the installation of the lamp body.

[0011] Preferably, a connecting plate is integrally formed between the side wall of the screw hole column and the cylindrical enclosure. Under this structural design, the connecting plate plays a strengthening role.

[0012] Preferably, heat dissipation convex ribs are integrally formed on the back surface of the metal heat dissipation tail cover. The transverse plate of the heat conduction plate is integrally formed on the back surface of the metal heat dissipation tail cover, and some of the heat dissipation convex ribs are connected to the transverse plate of the heat conduction plate. Under this structural design, the integrally formed metal heat dissipation tail cover is convenient for processing and installation and has good heat conduction effect. The heat dissipation convex ribs increase the heat dissipation area of the metal heat dissipation tail cover, improve the heat dissipation effect of the lamp body, and at the same time play a strengthening role for the transverse plate.

[0013] The present invention will be further described below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a perspective view of the highly efficient heat dissipation sealed warning lamp according to a specific embodiment of the present invention;

[0015] Figure 2 is a schematic internal structure diagram of the warning lamp unit according to a specific embodiment of the present invention;

[0016] Figure 3 is a schematic structure diagram of the highly efficient heat dissipation sealed warning lamp according to a specific embodiment of the present invention;

[0017] Figure 4 is Figure 3 a partial enlarged view of part A in

[0018] Figure 5Schematic diagram of the structure of the lamp body in a specific embodiment of the present invention Figure 1 ;

[0019] Figure 6 Schematic diagram of the structure of the lamp body in a specific embodiment of the present invention Figure 2 ;

[0020] Figure 7 Schematic diagram of the internal structure of the bottom shell in a specific embodiment of the present invention;

[0021] Figure 8 Schematic diagram of the structure of the bottom shell from the bottom perspective in a specific embodiment of the present invention. Specific embodiments

[0022] See the appendix Figures 1 to 8 As shown in the figure, a sealed warning lamp with efficient heat dissipation disclosed by the present invention includes a plurality of warning lamp units, and a bottom metal profile plate 1 installed at the bottom of the warning lamp units to realize the series connection of the plurality of warning lamp units. The warning lamp unit includes an upper cover 2 and a bottom shell 3 that are hermetically fastened. A profile plate groove 31 is provided at the bottom of the bottom shell 3 of the warning lamp unit, and the bottom metal profile plate 1 is installed in the profile plate groove 31. A plurality of lamp bodies 4 are installed in the bottom shell 3. The lamp body 4 has a metal heat dissipation tail cover 42 for the lamp board 41 in the lamp body 4 to contact and mount. The metal heat dissipation tail cover 42 is provided with a heat conduction plate 43. A through hole 32 is provided on the bottom shell 3 that is blocked by the bottom metal profile plate 1 and faces the profile plate groove 31. And a raised cylindrical enclosure 33 is provided around the opening of the through hole 32 inside the bottom shell 1. A waterproof heat dissipation channel I is formed through the cylindrical enclosure 33 and the through hole 32. The heat conduction plate 43 passes through the waterproof heat dissipation channel I and is in thermal contact with the bottom metal profile plate 1. There is a heat dissipation gap communicating the inside and the outside of the bottom shell 1 between the waterproof heat dissipation channel I and the heat conduction plate 43. The heat generated by the lamp board in the lamp body can be conducted and output through the metal heat dissipation tail cover. On the one hand, the metal heat dissipation tail cover is in contact with the bottom metal profile plate through the heat conduction plate to realize direct heat conduction, so as to quickly conduct and discharge the heat inside the warning lamp. On the other hand, the metal heat dissipation tail cover and the heat conduction plate carried thereon can increase the heat dissipation area, realize the diffusion of heat into the air, and discharge it through the heat dissipation gap, effectively avoiding the accumulation of heat in the warning lamp. The inner opening of the through hole is provided with a raised cylindrical enclosure to form a waterproof heat dissipation channel. The through hole of the waterproof heat dissipation channel corresponds to the bottom metal profile plate, and is protected by the bottom metal profile plate. And the waterproof heat dissipation channel can increase the climbing difficulty of water and ensure a good waterproof and sealing effect.

[0023] To improve the installation efficiency of the lamp body, the heat conduction plate 43 includes a "7"-shaped body. The "7"-shaped body includes a horizontally extending horizontal plate body 431. One end of the horizontal plate body 431 is connected to the metal heat dissipation end cap 42, and the other end of the horizontal plate body 431 is turned downward to form a vertical plate body 432. A screw hole 4311 is provided on the horizontal plate body 431 of the "7"-shaped body, and a screw hole post 34 is provided on the bottom shell 1. The horizontal plate body 431 of the "7"-shaped body is supported on the screw hole post 34 and the cylindrical enclosure 33. The screw hole 4311 is inserted and screwed onto the locking screw 5 screwed onto the screw hole post 34, and the "7"-shaped body is locked and fixed by the locking screw 5. The heat conduction plate serves both the functions of installing and fixing the lamp body, and has the advantages of simple and compact structure and convenient installation of the lamp body.

[0024] Further, a relief hole 4312 connecting to the screw hole 4311 is provided on the horizontal plate body 431 of the "7"-shaped body. The opening of the relief hole 4312 connecting to the screw hole 4311 allows the rod portion of the locking screw 5 to pass freely, and the relief hole 4312 allows the locking head 51 of the locking screw 5 to pass freely. The waterproof and heat dissipation channel I has a moving space for the heat conduction plate 43 to move within the waterproof and heat dissipation channel I to enable the locking screw 5 to switch positions between the relief hole 4312 and the screw hole 4311. Then, the heat conduction plate can be directly inserted into the waterproof and heat dissipation channel. The relief hole corresponds to the position of the locking screw. The locking head of the locking screw passes through the relief hole, and then the lamp body is moved to move the locking screw to the position of the screw hole. Tightening the locking screw can complete the installation without completely unscrewing the locking screw, which has the advantage of convenient disassembly and assembly of the lamp body. A connecting plate 341 is integrally formed between the side wall of the screw hole post 34 and the cylindrical enclosure 33, and the connecting plate plays a strengthening role.

[0025] A convex head 433 protrudes at the contact end of the vertical plate body 432 of the "7"-shaped body and the bottom metal profile plate 1. The convex head 433 protrudes in the extending directions of the two connection ends respectively connecting the metal heat dissipation end cap 42 and the vertical plate body 432 towards the horizontal plate body 431, and the arrangement direction of the relief hole 4312 and the screw hole 4311 is the same as the protruding direction of the convex head 433. When the locking screw 5 slides from the relief hole 4312 into the screw hole 4311, the convex head 433 is inserted into the corresponding position of the through hole 32 on the outer bottom surface of the bottom shell 3 to form a stop fit with the bottom shell 3. The convex head protruding at the contact end of the vertical plate body of the "7"-shaped body and the bottom metal profile plate not only increases the contact area between the heat conduction plate and the bottom metal profile plate, but also when the heat conduction plate slides in and out of the screw locking position, the convex head is inserted into and withdrawn from the bottom of the bottom shell, making the installation of the lamp body more firm and reliable.

[0026] On the transverse two sides of the bottom surface of the "7"-shaped body, there are convex ribs 434 provided, and the convex ribs 434 extend onto the metal heat dissipation tail cover 42. On the top surface of the cylindrical enclosure 33, there are notches 331 corresponding to the convex ribs 434 one by one. On the top surface of the cylindrical enclosure 33, a convex platform 332 is formed between the two notches 331. The convex ribs 434 extend into the notches 331, and the corresponding convex platform 332 extends into the interval between the two convex ribs 434. The convex ribs play a role in strengthening the heat conduction plate and at the same time have a positioning function for lamp body installation.

[0027] To increase the heat dissipation effect of the lamp body, heat dissipation convex ribs 421 are integrally formed on the back surface of the metal heat dissipation tail cover 42. The transverse plate body 431 of the heat conduction plate 43 is integrally formed on the back surface of the metal heat dissipation tail cover 42, and part of the heat dissipation convex ribs 421 are connected to the transverse plate body 431 of the heat conduction plate 43. The integrally formed metal heat dissipation tail cover is convenient for processing and installation and has good heat conduction effect. The heat dissipation convex ribs increase the heat dissipation area of the metal heat dissipation tail cover, improve the heat dissipation effect of the lamp body, and at the same time play a role in strengthening the transverse plate body.

Claims

1. A sealed warning light with high heat dissipation efficiency, comprising a plurality of warning light units, and a bottom metal profile plate installed at the bottom of the warning light units to achieve the series connection of the plurality of warning light units. The warning light unit includes an upper cover and a bottom shell that are hermetically fastened. A profile plate groove is provided at the bottom of the bottom shell of the warning light unit, and the bottom metal profile plate is installed in the profile plate groove. A plurality of lamp bodies are installed in the bottom shell, and it is characterized in that: The described lamp body has a metal heat dissipation tail cover for the lamp board in the lamp body to contact and mount. The metal heat dissipation tail cover is provided with a heat conduction plate. The bottom shell is provided with a through hole that is blocked by the bottom metal profile plate and is opposite to the profile plate groove. And a raised cylindrical enclosure is surrounded at the opening of the through hole inside the bottom shell. A waterproof and heat dissipation channel is formed by the cylindrical enclosure and the through hole. The heat conduction plate passes through the waterproof and heat dissipation channel and is in thermal contact with the bottom metal profile plate. There is a heat dissipation gap between the waterproof and heat dissipation channel and the heat conduction plate, which connects the inside and outside of the bottom shell.

2. The sealed warning light with high heat dissipation according to claim 1, wherein: The heat conduction plate includes a "7"-shaped body. The "7"-shaped body includes a horizontally extending horizontal plate body. One end of the horizontal plate body is connected to the metal heat dissipation tail cover, and the other end of the horizontal plate body is turned downwards to form a vertical plate body. Screw holes are provided on the horizontal plate body of the "7"-shaped body. Screw hole columns are provided on the bottom shell. The horizontal plate body of the "7"-shaped body is supported on the screw hole columns and the cylindrical enclosure. The screw holes are inserted with locking screws screwed on the screw hole columns, and the "7"-shaped body is locked and fixed by the locking screws.

3. The sealed warning light with efficient heat dissipation according to claim 2, characterized in that: A relief hole connecting to the screw hole is provided on the horizontal plate body of the "7"-shaped body. The opening of the relief hole connecting to the screw hole allows the rod part of the locking screw to pass through freely. The relief hole allows the locking head of the locking screw to pass through freely. The waterproof and heat dissipation channel has a moving space for the heat conduction plate to move in the waterproof and heat dissipation channel to realize the switching of the position of the locking screw between the relief hole and the screw hole.

4. The sealed warning light with high heat dissipation according to claim 3, wherein: A convex head protrudes at the contact end of the vertical plate body of the "7"-shaped body and the bottom metal profile plate. The convex head protrudes towards the two connection ends of the metal heat dissipation tail cover and the vertical plate body respectively where the horizontal plate body is connected. And the arrangement direction of the relief hole and the screw hole is the same as the protruding direction of the convex head. When the locking screw slides from the relief hole into the screw hole, the convex head is inserted into the outer bottom surface of the bottom shell corresponding to the through hole to form a stop fit with the bottom shell.

5. The sealed warning light with high-efficiency heat dissipation according to claim 2 or 3 or 4, characterized in that: Convex ribs are provided on both lateral sides of the bottom surface of the "7"-shaped body and extend on the metal heat dissipation tail cover. Concave notches corresponding to the convex ribs one by one are provided on the top surface of the cylindrical enclosure. A convex platform is formed between the two concave notches on the top surface of the cylindrical enclosure. The convex ribs extend into the concave notches, and the corresponding convex platform extends into the interval between the two convex ribs.

6. The sealed warning light with high heat dissipation according to claim 2 or 3 or 4, characterized in that: A connecting plate is integrally formed between the side wall of the screw hole column and the cylindrical enclosure.

7. The sealed warning light with high heat dissipation according to claim 2, wherein: Heat dissipation ribs are integrally formed on the back surface of the metal heat dissipation tail cover. The horizontal plate body of the heat conduction plate is integrally formed on the back surface of the metal heat dissipation tail cover, and some of the heat dissipation ribs are connected to the horizontal plate body of the heat conduction plate.

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