A tunnel high-power lighting heat dissipation device

Abstract

The present invention discloses a tunnel high-power lighting heat dissipation device, including a ventilation duct arranged at the top of the tunnel, a fan arranged at the end of the ventilation duct, the ventilation duct and the tunnel lighting lamp are arranged opposite to each other, a connection port is opened on the side wall of the ventilation duct, a connecting pipe is connected to the connection port, the connecting pipe is configured to guide part of the airflow in the ventilation duct to the tunnel lighting lamp, and the connecting pipe is configured to guide the ejected airflow to engage with the heat dissipation channel formed by the heat dissipation fins of the tunnel lighting lamp, so that the airflow passes through the heat dissipation channel. The heat dissipation device of the present invention makes full use of the tunnel ventilation system to dissipate heat for the tunnel lighting lamp. Among them, the fan draws air outside the tunnel into the ventilation duct, and then the airflow is guided by the connecting pipe and passes through the heat dissipation channel on the tunnel lighting lamp, so as to quickly carry out the heat on the tunnel lighting lamp, meeting the need for high-power lighting heat dissipation of the tunnel lighting lamp without additional power.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel equipment, and in particular to a high-power tunnel lighting heat dissipation device. Background Art

[0002] Tunnels are engineering structures buried in the ground and are a form of human use of underground space. Tunnels can be divided into traffic tunnels, hydraulic tunnels, municipal tunnels and mining tunnels. Tunnel lights are one of the common equipment in tunnels. Tunnel lighting is a special lamp used for tunnel lighting to solve the "black hole effect" or "white hole effect" caused by sudden changes in brightness when vehicles enter or exit tunnels.

[0003] Existing tunnel lighting lamps generate a lot of heat during use, and tunnel lighting lamps are always kept at high temperatures, which will affect the service life of the tunnel lights. For example, light decay may occur, affecting the lighting intensity. In this regard, tunnel lighting lamps are often provided with a number of heat dissipation fins to increase the heat dissipation area and heat dissipation performance. However, for high-power tunnel lighting lamps, the heat dissipation effect only through heat dissipation fins is not ideal, and tunnel lighting lamps are often scrapped prematurely. For example, in the prior art, there is a way to meet the needs of high-power lighting heat dissipation by adding a powered heat dissipation device to the tunnel lighting lamp, but this will cause the energy consumption of the tunnel system to increase, which does not meet the needs of tunnel energy conservation and emission reduction. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a high-power tunnel lighting heat dissipation device.

[0005] The objective of the present invention is achieved through the following technical solutions:

[0006] A high-power tunnel lighting heat dissipation device comprises a ventilation duct arranged at the top of the tunnel, a fan is arranged at the end of the ventilation duct, the ventilation duct is arranged opposite to the tunnel lighting lamp, a connecting port is opened on the side wall of the ventilation duct, a connecting pipe is connected to the connecting port, the connecting pipe is configured to guide part of the airflow in the ventilation duct to the tunnel lighting lamp, and the connecting pipe is configured to guide the ejected airflow to connect with the heat dissipation channel formed by the heat dissipation fins of the tunnel lighting lamp, so that the airflow passes through the heat dissipation channel.

[0007] A splitter plate is provided in the ventilation pipe at the rear end of the connection port, and the splitter plate is configured to guide part of the airflow in the ventilation pipe toward the connection port.

[0008] The ventilation pipe is provided with an installation opening at the rear end of the connection opening, and the diverter plate is inserted into the installation opening. Sliding the diverter plate can adjust the cross-sectional size of the diverter plate in the ventilation pipe.

[0009] A baffle is provided at the opening of the connecting pipe, and a plurality of jet holes are formed on the baffle, and the jet holes are opposite to the heat dissipation channel.

[0010] The diverter plate is arranged obliquely, and the angle between the diverter plate and the connecting port is an acute angle.

[0011] The end of the diverter plate located in the through-dividing pipe is provided with a baffle plate, and when the diverter plate slides out of the installation opening, the baffle plate can cover the connecting opening.

[0012] The tunnel lighting lamp is provided with an air bag, which can expand and contract as the temperature of the tunnel lighting lamp changes. A driving rod is connected between the air bag and the diverter plate.

[0013] The outlet end of the heat dissipation channel is provided with a trigger plate which can be elastically provided through an elastic member, and the outlet end of the heat dissipation channel is also provided with a contact switch corresponding to the outlet end. A blocking plate is also slidably provided on the baffle plate, and an electromagnet is also provided corresponding to the baffle plate. The electromagnet is powered on or off to drive the blocking plate to open or close the corresponding jet hole. When the trigger plate presses the contact switch, the corresponding jet hole remains in an open state, and the remaining jet holes are closed by the corresponding blocking plate driven by the electromagnet.

[0014] A cleaning plate is slidably arranged on the heat dissipation fins, and the cleaning plate is attached to the heat dissipation fins. The cleaning plate has a ventilation part adapted to the heat dissipation channel, and the ventilation part has ventilation holes for air flow. A connecting plate is arranged in the heat dissipation channel by spring 1, and a spring 2 is connected between the connecting plate and the cleaning plate. A blocking shaft is also arranged on the connecting plate corresponding to the ventilation hole.

[0015] The beneficial effects of the present invention are:

[0016] 1. The heat dissipation device of the present invention makes full use of the tunnel ventilation system to dissipate heat for tunnel lighting. The fan draws air outside the tunnel into the ventilation duct, and then the airflow is guided through the connecting pipe and passes through the heat dissipation channel on the tunnel lighting, thereby quickly carrying away the heat on the tunnel lighting, meeting the need for high-power lighting heat dissipation of tunnel lighting without the need for additional power.

[0017] 2. With the cooperation of the airbag, drive rod and diverter plate, the heat dissipation device can adjust the air outlet of the connecting pipe in real time according to the changes in the temperature that cause the changes in the heat dissipation requirements of the tunnel lighting, thereby realizing the real-time adjustment of the air intake of the tunnel ventilation system, and thereby adjusting the power of the fan in real time, further meeting the needs of energy conservation and emission reduction.

[0018] 3. Without increasing the fan power, the dust cleaning operation of the heat dissipation channel can be achieved by opening and closing a number of jet holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of an embodiment;

[0020] Figure 2 It is a schematic diagram of the structure of the cleaning plate;

[0021] Figure 3 for Figure 2 A magnified view of part A;

[0022] Figure 4 It is a structural schematic diagram of the blocking plate;

[0023] Figure 5 Schematic diagram of the structure of the manifold.

[0024] Figure numerals: 1, ventilation pipe; 2, connecting port; 3, connecting pipe; 4, diverter plate; 5, mounting port; 6, baffle; 7, jet hole; 8, baffle; 9, airbag; 10, driving rod; 11, trigger plate; 12, blocking plate; 13, electromagnet; 14, cleaning plate; 15, ventilation part; 16, ventilation hole; 17, spring one; 18, spring two; 19, blocking shaft; 20, heat dissipation fin; 21, heat dissipation channel; 22, tunnel lighting; 23, contact switch; 24, connecting plate. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0026] like Figures 1 to 5 As shown, a tunnel high-power lighting heat dissipation device includes a ventilation pipe 1 arranged at the top of the tunnel, and a fan (not shown) is arranged at the end of the ventilation pipe 1. The fan draws air outside the tunnel into the ventilation pipe 1, and transports the air into the tunnel through the ventilation pipe 1 to realize ventilation of the tunnel. In order to achieve heat dissipation of high-power lighting of the tunnel lighting lamp 22, the tunnel lighting lamp 22 can be installed at a position opposite to the ventilation pipe 1, and a connecting port 2 is opened on the side wall corresponding to the ventilation pipe 1. The connecting port 2 is connected with a connecting pipe 3, and the air outlet of the connecting pipe 3 is opposite to the installation area of ​​the heat dissipation fin 20 of the tunnel lighting lamp 22.

[0027] It can be understood that the airflow pumped into the ventilation duct 1 by the fan can be partially guided to the heat dissipation fins 20 of the tunnel lighting lamp 22 through the connecting pipe 3, thereby accelerating the heat exchange efficiency of the heat dissipation fins 20 and achieving heat dissipation of the tunnel lighting lamp 22.

[0028] The heat dissipation fins 20 are usually distributed in multiple pieces on the tunnel lighting lamp 22 to form a heat dissipation channel 21 between adjacent heat dissipation fins 20. As the airflow flows in the heat dissipation channel 21, the heat dissipation performance of the heat dissipation fins 20 is better. For example, the air outlet direction of the connecting pipe 3 can be configured to be connected with the heat dissipation channel 21, so that the airflow can pass through the heat dissipation channel 21 more smoothly to meet the heat dissipation requirements of the high-power lighting of the tunnel lighting lamp 22.

[0029] In some embodiments, a baffle 6 is provided at the opening of the connecting tube 3, and a plurality of jet holes 7 are provided on the baffle 6, and the plurality of jet holes 7 correspond to the plurality of heat dissipation channels 21 one by one. Therefore, the airflow ejected from the connecting tube 3 can pass through the heat dissipation channels 21 more accurately and concentratedly under the guidance of the jet holes 7 to achieve more efficient heat exchange.

[0030] In a preferred embodiment, the ventilation pipe 1 is further provided with a diverter plate 4 at the rear end of the connection port 2. The so-called rear end refers to the side of the ventilation pipe 1 that is further back along the internal airflow direction, that is, in the ventilation direction of the airflow, the airflow will first flow through the connection port 2 and then flow through the diverter plate 4. Therefore, the airflow in the ventilation pipe 1 will be partially blocked by the diverter plate 4, and then under the guidance of the diverter plate 4, the airflow will more smoothly enter the connection port 2 and the connection pipe 3 until the heat dissipation fins 20 are cooled.

[0031] In the actual operation of the tunnel lighting lamp 22, the inventors found that the heat dissipation demand of the tunnel lighting lamp 22 also depends on the changes in environmental factors. For example, in the summer when the temperature is high, the tunnel lighting lamp 22 is more likely to accumulate heat, so a higher heat dissipation demand is required; in the winter when the temperature is low, the heat dissipation demand of the tunnel lighting lamp 22 will also be reduced accordingly. It can be understood that if the airflow in the ventilation duct 1 is guided into the connecting pipe 3 with a large flux to meet the heat dissipation demand of the tunnel lighting lamp 22 in summer, for example, it is easy to cause redundant loss of airflow in winter, for example, and for the tunnel ventilation system, the fan still needs to maintain a large power to meet the stable transmission of the airflow at the far end of the ventilation duct 1.

[0032] In this regard, the present disclosure also provides an installation port 5 at the rear end of the ventilation duct 1 at the connection port 2, and the above-mentioned diverter plate 4 is adapted and inserted in the installation port 5. It can be understood that the sliding diverter plate 4 can adjust the depth of the diverter plate 4 inserted into the ventilation duct 1, so as to change the cross-sectional size of the diverter plate 4 in the ventilation duct 1. For example, when the diverter plate 4 has a larger cross-section in the ventilation duct 1, the airflow in the ventilation duct 1 will be more directed into the connection pipe 3, and a better heat dissipation effect for the tunnel lighting 22 will be achieved, for example, the heat dissipation requirements of the tunnel lighting 22 in winter can be met; when the diverter plate 4 has a smaller cross-section in the ventilation duct 1, the airflow in the ventilation duct 1 will be relatively less directed into the connection pipe 3, at this time, the airflow in the ventilation duct 1 will be less affected by the flow rate and flow velocity, the far-end ventilation performance of the ventilation duct 1 is more stable, and the fan can reduce the power accordingly to meet the needs of energy saving and emission reduction.

[0033] For example, the diverter plate 4 is also configured to be inserted into the ventilation pipe 1 in an inclined posture, and the angle between the diverter plate 4 and the connecting port 2 is an acute angle, so the diverter plate 4 can guide the airflow into the connecting pipe 3 more smoothly and is not likely to have a significant impact on the flow rate of the airflow in the ventilation pipe 1.

[0034] In some embodiments, the end of the diverter plate 4 located in the ventilation pipe 1 is further provided with a baffle plate 8, and when the diverter plate 4 slides out of the mounting opening 5 to the limit position, the baffle plate 8 can cover the connection opening 2, and the airflow in the ventilation pipe 1 will not be diverted to the connection pipe 3, and the airflow in the ventilation pipe 1 will maintain the maximum transmission efficiency. For example, a driving member can be provided on the side wall of the ventilation pipe 1, and the sliding position of the diverter plate 4 can be adjusted by the driving member.

[0035] In other embodiments, the tunnel lighting lamp 22 is provided with an airbag 9, and the airbag 9 can be filled with an easily expandable material. When the heat accumulated in the tunnel lighting lamp 22 increases, for example, when transitioning from winter to summer, the airbag 9 will gradually expand; otherwise, the airbag 9 will gradually shrink. For example, a driving rod 10 is connected between the airbag 9 and the diverter plate 4. During the expansion and contraction of the airbag 9, the airbag 9 can drive the diverter plate 4 to slide through the driving rod 10. For example, when the airbag 9 expands, the diverter plate 4 is further pushed into the ventilation pipe 1, thereby increasing the air flow rate guided by the diverter plate 4 to the connecting pipe 3, so as to meet the heat dissipation requirements of the tunnel lighting lamp 22 in summer, and it is not easy for the tunnel lighting lamp 22 to be damaged due to overheating. It can be understood that through the cooperation of the airbag 9 and the driving rod 10, real-time adjustment of the flux of the airflow in the ventilation duct 1 distributed to the connecting pipe 3 can be achieved. Compared with the adjustment of the sliding position of the diverter plate 4 through the driving member, the airbag 9 can more intuitively respond to the heat dissipation requirements of the tunnel lighting 22, and the airbag 9 does not require an additional power device, which is more in line with the needs of energy conservation and emission reduction in the tunnel.

[0036] In addition, the inventors have also found that dust is easily stirred up when vehicles pass through tunnels, and the dust is easily deposited on the heat dissipation fins 20 of the tunnel lighting lamps 22, resulting in a decrease in the heat dissipation performance of the heat dissipation fins 20. In particular, in winter, when the air flow rate of the connecting pipe 3 is small, dust is more likely to adhere to the heat dissipation fins 20. Due to long-term adhesion, even in summer, when the air flow rate of the connecting pipe 3 is increased, the dust is still difficult to blow off from the heat dissipation fins 20.

[0037] In this regard, the outlet end of the heat dissipation channel 21 disclosed in the present invention is provided with a trigger plate 11 that can be elastically provided, and the outlet end of the heat dissipation channel 21 is also provided with a contact switch 23 correspondingly. A blocking plate 12 is slidably provided on the baffle 6, and an electromagnet 13 is also provided on the baffle 6 corresponding to the blocking plate 12. When the electromagnet 13 is energized, it can generate a repulsive force on the blocking plate 12, thereby pushing the blocking plate 12 to close the corresponding jet hole 7. In addition, the electromagnet 13 and the contact switch 23 are electrically connected to a controller (not shown). For example, an elastic member is connected between the blocking plate 12 and the baffle 6. When the electromagnet 13 is not energized, the elastic member pulls the blocking plate 12 out of the jet hole 7 to open the jet hole 7.

[0038] During the operation of the heat dissipation device, the airflow blown into the heat dissipation channel 21 through the jet hole 7 will push the trigger plate 11 to pop out away from one side of the heat dissipation channel 21, and the contact switch 23 is in an unpressed state; as dust and impurities adhere to the heat dissipation channel 21, the airflow in the heat dissipation channel 21 gradually decreases, and the driving force acting on the trigger plate 11 decreases at this time. The trigger plate 11 is gradually pulled back to one side of the heat dissipation channel 21 under the action of the elastic force until the contact switch 23 is pressed. Subsequently, the controller controls the electromagnet 13 corresponding to the pressed contact switch 23 to remain in the off state, and the remaining electromagnets 13 are switched to the energized state, and the corresponding blocking plate 12 closes the remaining jet holes 7. It can be understood that due to the reduction in the number of jet holes 7 flowing, the airflow ejected from the open jet holes 7 has a greater wind pressure, so that the dust attached to the heat dissipation fins 20 can be blown away.

[0039] In some embodiments, a cleaning plate 14 is slidably provided on the heat dissipation fin 20 and is attached to the heat dissipation fin 20. Specifically, the cleaning plate 14 has a ventilation portion 15 and a main body attached to the heat dissipation fin 20, wherein the ventilation portion 15 is adapted in the heat dissipation channel 21. In addition, the ventilation portion 15 also has a ventilation hole 16, and a connecting plate 24 is elastically provided in the heat dissipation channel 21 through a spring 17, and the spring 17 acts to push the connecting plate 24 from the outlet end to the inlet end of the heat dissipation channel 21. A spring 2 18 is also connected between the connecting plate 24 and the cleaning plate 14, and a blocking shaft 19 is also provided on the connecting plate 24 corresponding to the ventilation hole 16.

[0040] During the operation of the heat dissipation device, all the jet holes 7 remain open, and air flows through each heat dissipation channel 21 to meet the high-power lighting requirements of the tunnel lighting lamp 22. At this time, the airflow in the connecting pipe 3 has a relatively small wind pressure through the distribution of the plurality of jet holes 7, and the airflow normally passes through the cleaning plate 14 and the connecting plate 24 through the ventilation holes 16 to dissipate heat to the heat dissipation fins 20;

[0041] When the heat dissipation device enters the above-mentioned dust removal state, the wind pressure ejected from the open jet hole 7 becomes larger, and then the airflow will push the cleaning plate 14 to squeeze the spring 2 18 gradually close to the connecting plate 24. During this process, the blocking shaft 19 will be inserted into the ventilation hole 16. At this time, the pressure of the airflow acting on the cleaning plate 14 is greater, and then the airflow will push the cleaning plate 14 and the connecting plate 24 to move from the inlet end of the heat dissipation channel 21 to the outlet end. During this period, the cleaning plate 14 can scrape and clean the dust attached to the heat dissipation fins 20 to achieve a better dust removal effect.

[0042] For example, a contact switch 23 is also provided at the maximum sliding stroke of the connecting plate 24 or the cleaning plate 14. After the contact switch 23 is pressed, the completion of the dust removal operation is judged and responded, and the controller controls a plurality of blocking plates 12 to reopen all the jet holes 7. At this time, the wind pressure ejected from the jet holes 7 is reduced again, and under the action of spring 17 and spring 2 18, the connecting plate 24 and the cleaning plate 14 will return to their initial positions, thereby restoring the normal heat dissipation state of the heat dissipation device.

[0043] For example, a connecting rod can also be set on the side of the connecting plate 24 away from the cleaning plate 14. When the connecting plate 24 slides to the maximum stroke, the connecting rod can push the corresponding trigger plate 11 to the side away from the heat dissipation channel 21, and the previously pressed contact switch 23 is switched to an unpressed state. The completion of the dust removal operation is therefore judged and responded, and then the controller executes the above-mentioned recovery operation, thereby switching the heat dissipation device back to a normal heat dissipation state.

[0044] In a preferred embodiment, two ventilation holes 16 may be arranged opposite to each other on both sides of the connecting plate 24. In the normal heat dissipation state of the heat dissipation device, the airflow ejected from the jet hole 7 may flow through the two ventilation holes 16 and the diversion of the connecting plate 24 to the side walls of the heat dissipation fins 20 attached to both sides of the heat dissipation channel 21, thereby achieving the best heat dissipation effect.

[0045] The above is only a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art shall not deviate from the spirit and scope of the present invention, and shall be within the scope of protection of the claims attached to the present invention.

Claims

1. A high-power tunnel lighting heat dissipation device, comprising a ventilation pipe (1) arranged at the top of the tunnel, a fan is arranged at the end of the ventilation pipe (1), and the ventilation pipe (1) is arranged opposite to the tunnel lighting lamp (22), wherein: A connection port (2) is provided on the side wall of the ventilation pipe (1), a connection pipe (3) is connected to the connection port (2), the connection pipe (3) is configured to guide part of the airflow in the ventilation pipe (1) toward the tunnel lighting lamp (22), and the connection pipe (3) is configured to guide the ejected airflow to connect with a heat dissipation channel (21) formed by the heat dissipation fins (20) of the tunnel lighting lamp (22), so that the airflow passes through the heat dissipation channel (21); A splitter plate (4) is provided in the ventilation pipe (1) at the rear end of the connection port (2), and the splitter plate (4) is configured to guide part of the airflow in the ventilation pipe (1) toward the connection port (2); The ventilation pipe (1) is provided with a mounting opening (5) at the rear end of the connecting opening (2), the diverter plate (4) is inserted into the mounting opening (5), and the cross-sectional size of the diverter plate (4) in the ventilation pipe (1) can be adjusted by sliding the diverter plate (4); The tunnel lighting lamp (22) is provided with an airbag (9), the airbag (9) can expand and contract with temperature changes, and a driving rod (10) is connected between the airbag (9) and the diverter plate (4).

2. The high-power tunnel lighting heat dissipation device according to claim 1 is characterized in that: The opening of the connecting pipe (3) is provided with a baffle (6), and a plurality of jet holes (7) are provided on the baffle (6), and the jet holes (7) are opposite to the heat dissipation channel (21).

3. The high-power tunnel lighting heat dissipation device according to claim 1 is characterized in that: The diverter plate (4) is arranged at an angle, and the angle between the diverter plate (4) and the connecting port (2) is an acute angle.

4. The high-power tunnel lighting heat dissipation device according to claim 1 is characterized in that: A baffle plate (8) is provided at the end of the diverter plate (4) located inside the ventilation pipe (1); when the diverter plate (4) slides out of the installation opening (5), the baffle plate (8) can cover the connection opening (2).

5. The high-power tunnel lighting heat dissipation device according to claim 2 is characterized in that: The outlet end of the heat dissipation channel (21) is provided with a trigger plate (11) which can be elastically moved by means of an elastic member, and the outlet end of the heat dissipation channel (21) is also provided with a contact switch (23) correspondingly, and a blocking plate (12) is also slidably provided on the baffle plate (6), and an electromagnet (13) is also provided correspondingly on the baffle plate (6), and the electromagnet (13) can drive the blocking plate (12) to open or close the corresponding jet hole (7) when it is powered on or off, and when the trigger plate (11) presses the contact switch (23), the corresponding jet hole (7) remains in an open state, and the remaining jet holes (7) are closed by the corresponding blocking plate (12) driven by the electromagnet (13).

6. The high-power tunnel lighting heat dissipation device according to claim 5 is characterized in that: A cleaning plate (14) is slidably arranged on the heat dissipation fin (20), the cleaning plate (14) is attached to the heat dissipation fin (20), the cleaning plate (14) has a ventilation portion (15) adapted to the heat dissipation channel (21), the ventilation portion (15) has a ventilation hole (16) for air flow, a connecting plate (24) is arranged in the heat dissipation channel (21) by springing of a spring 1 (17), a spring 2 (18) is connected between the connecting plate (24) and the cleaning plate (14), and a blocking shaft (19) is also arranged on the connecting plate (24) corresponding to the ventilation hole (16).

Images