CN109377774B - Crosswalk traffic signal lamp - Google Patents
Crosswalk traffic signal lamp Download PDFInfo
- Publication number
- CN109377774B CN109377774B CN201811149139.7A CN201811149139A CN109377774B CN 109377774 B CN109377774 B CN 109377774B CN 201811149139 A CN201811149139 A CN 201811149139A CN 109377774 B CN109377774 B CN 109377774B
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- Prior art keywords
- side plate
- plate
- led lamp
- cover plate
- fan
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/095—Traffic lights
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/60—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air
- F21V29/67—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
- F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V31/00—Gas-tight or water-tight arrangements
- F21V31/005—Sealing arrangements therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Traffic Control Systems (AREA)
Abstract
The invention discloses a pedestrian crossing traffic signal lamp, which comprises a controller, a cuboid-shaped installation bin, a transparent first cover plate and a transparent second cover plate, wherein the first cover plate and the second cover plate are arranged in the installation bin; the first cover plate is provided with a rectangular through hole, a heat-conducting plate is fixedly mounted at the rectangular through hole, the heat-conducting plate is sealed with the rectangular through hole through sealant, the upper surface of the heat-conducting plate is provided with a plurality of hemispherical bulges, and the lower surface of the heat-conducting plate is provided with a plurality of second fins. The signal lamp has good heat dissipation effect and good waterproof performance.
Description
Technical Field
The invention relates to the field of signal lamps, in particular to a pedestrian crossing traffic signal lamp.
Background
The buried signal lamp is a special signal lamp invented for coping with head lowering groups, and a plurality of buried signal lamps are used as pedestrian crossing signal lamps, are buried in the ground and integrated with the ground, and can see traffic signals when a person lowers the head. However, the signal lamp has defects, particularly, the signal lamp is difficult to radiate because the signal lamp is buried in the ground, and substances such as water vapor and the like easily enter the signal lamp to cause the signal lamp to be damaged due to the radiation in an air cooling mode.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to overcome the defects of the prior art and provides a pedestrian crossing traffic signal lamp.
The technical scheme is as follows: a pedestrian crossing traffic signal lamp comprises a controller, a cuboid-shaped installation bin, a transparent first cover plate and a transparent second cover plate, wherein the installation bin comprises a first side plate, a second side plate, a third side plate, a fourth side plate and a bottom plate, the first side plate and the second side plate are opposite, a first rectangular frame and a second rectangular frame located below the first rectangular frame are fixed in the installation bin, the first cover plate is fixed with the first rectangular frame through a first bolt, the second cover plate is fixed with the second rectangular frame through a second bolt, a first sealing gasket is arranged between the first cover plate and the first rectangular frame, a second sealing gasket is arranged between the second cover plate and the second rectangular frame, the first rectangular frame is fixedly connected with the first side plate, the second side plate, the third side plate and the fourth side plate, and the second rectangular frame is fixedly connected with the first side plate, the second side plate, the third side plate and the fourth side plate; the mounting bin is internally provided with a light-emitting unit positioned below the second cover plate, the light-emitting unit comprises a circuit board, a heat conduction block, a plurality of first fins connected with the heat conduction block, a plurality of red LED lamp beads mounted on the circuit board and a plurality of green LED lamp beads mounted on the circuit board, and the circuit board is fixed with the first side plate through a first mounting bracket and is fixed with the second side plate through a second mounting bracket; the bottom plate is also provided with a first fan and a second fan, the heat conduction block is positioned between the first fan and the second fan, the first side plate is internally provided with a first channel for connecting the space above the second cover plate and the space below the circuit board, and the second side plate is internally provided with a second channel for connecting the space above the second cover plate and the space below the circuit board; the first cover plate is provided with a rectangular through hole, a heat-conducting plate is fixedly mounted at the rectangular through hole, the heat-conducting plate is sealed with the rectangular through hole through sealant, the upper surface of the heat-conducting plate is provided with a plurality of hemispherical bulges, and the lower surface of the heat-conducting plate is provided with a plurality of second fins.
Furthermore, the plurality of red LED lamp beads are divided into a plurality of rows, and the plurality of green LED lamp beads are divided into a plurality of rows; the rows of the red LED lamp beads and the green LED lamp beads are equal and are alternately arranged.
Further, the width of the heat conducting plate is less than 20 cm.
Further, the heat conducting plate, the plurality of second fins and the plurality of hemispherical protrusions are integrally formed and are all made of copper-aluminum alloy.
Further, the top ends of all the hemispherical bulges are positioned on the same horizontal plane and are flush with the upper surface of the first cover plate.
Further, a wireless communication unit is also included; the first channel is provided with a first valve, and the second channel is provided with a second valve; an arc-surface-shaped groove is formed in the upper surface of the second cover plate, a cuboid-shaped groove is connected to the bottom end (or called as the lowest end) of the arc-surface-shaped groove, and a liquid level sensor is installed in the cuboid-shaped groove; the controller controls the first valve, the second valve, the first fan and the second fan to be opened when the measured value of the liquid level sensor is less than or equal to a set threshold value under the condition that the traffic signal lamp is opened; and under the condition that the traffic signal lamp is turned on, when the measured value of the liquid level sensor is greater than a set threshold value, the first valve, the second valve, the first fan and the second fan are closed, and an alarm signal is transmitted through the wireless communication unit.
Further, the controller controls the traffic signal lamp to be in a working state and the remaining two-thirds red LED lamp beads and the remaining two-thirds green LED lamp beads to be in a non-working state under the conditions that the traffic signal lamp is turned on and the first fan and the second fan are both in a closed state; the red LED lamp beads in the non-working state and the green LED lamp beads in the non-working state are always in the off state.
Further, the set threshold is 0.5 cm.
Furthermore, the lowest position of one end of the first channel, which is communicated with the space above the second cover plate, is higher than the upper surface of the second cover plate by more than 5 cm; the lowest position of one end of the second channel communicated with the space above the second cover plate is higher than the upper surface of the second cover plate by more than 5 cm.
Has the advantages that: the signal of the invention has good heat dissipation effect. Heat dissipation is achieved through air cooling, but air exchange with the outside cannot be achieved. And the sealing and waterproof performance is good, and the leakage can be reported and maintained in time.
Drawings
FIG. 1 is a schematic cross-sectional view of a signal lamp;
fig. 2 is a schematic top view of the signal lamp.
Detailed Description
Reference numerals: 1.1 a first side panel; 1.2 a second side plate; 1.3, a bottom plate; 1.4 first rectangular frame; 1.5 a first gasket; 1.6 first bolt; 1.7 first cover plate; 2, heat conducting plate; 2.1 hemispherical convex; 2.2 a second fin; 3.1 a first fan; 3.2 a second fan; 4.1 red LED lamp beads; 4.2 green LED lamp beads; 4.3 circuit board; 4.4 heat conducting block; 4.5 first fins; 5 a second cover plate; 5.1 a second rectangular frame; 5.2 a second gasket; 5.3 second bolt; 5.4 arc surface shaped groove; 5.5 a cuboid groove; 5.6 liquid level sensor.
A pedestrian crossing traffic signal lamp, which comprises a controller, a cuboid mounting bin, a transparent first cover plate 1.7 and a transparent second cover plate 5, the mounting bin comprises a first side plate 1.1, a second side plate 1.2, a third side plate, a fourth side plate and a bottom plate 1.3, the first and the second side plates are opposite, a first rectangular frame 1.4 and a second rectangular frame 5.1 positioned below the first rectangular frame are fixed in the mounting bin, the first cover plate is fixed with a first rectangular frame 1.4 through a first bolt 1.6, the second cover plate 5 is fixed with a second rectangular frame 5.1 through a second bolt 5.3, a first sealing gasket 1.5 is arranged between the first cover plate and the first rectangular frame, a second sealing gasket 5.2 is arranged between the second cover plate and the second rectangular frame, the first rectangular frame is fixedly connected with the first side plate, the second side plate, the third side plate and the fourth side plate, and the second rectangular frame is fixedly connected with the first side plate, the second side plate, the third side plate and the fourth side plate; the mounting bin is also internally provided with a light-emitting unit positioned below the second cover plate, the light-emitting unit comprises a circuit board 4.3, a heat-conducting block 4.4, a plurality of first fins 4.5 connected with the heat-conducting block, a plurality of red LED lamp beads 4.1 arranged on the circuit board and a plurality of green LED lamp beads 4.2 arranged on the circuit board, and the circuit board is fixed with the first side plate through a first mounting bracket and is fixed with the second side plate through a second mounting bracket; the bottom plate is also provided with a first fan 3.1 and a second fan 3.2, the heat conduction block is positioned between the first fan and the second fan, the first side plate is internally provided with a first channel 1.1.1 for connecting the space above the second cover plate and the space below the circuit board, and the second side plate is internally provided with a second channel 1.2.1 for connecting the space above the second cover plate and the space below the circuit board; first apron has the rectangle through-hole, rectangle through-hole department fixed mounting has heat-conducting plate 2, the heat-conducting plate with the rectangle through-hole is sealed through sealed glue, the upper surface of heat-conducting plate has a plurality of hemispheric arch 2.1, the lower surface of heat-conducting plate has a plurality of second fin 2.2.
The plurality of red LED lamp beads are divided into a plurality of rows, and the plurality of green LED lamp beads are divided into a plurality of rows; the rows of the red LED lamp beads and the green LED lamp beads are equal and are alternately arranged. The width of the heat conducting plate is less than 20 cm. The heat conducting plate, the second fins and the hemispherical bulges are integrally formed and are all made of copper-aluminum alloy. The top ends of all the hemispherical bulges are positioned on the same horizontal plane and are flush with the upper surface of the first cover plate.
When the signal lamp is used normally, the first fan and the second fan blow airflow in the same direction, the airflow circulates among the heat conducting block, the first channel, the space between the first cover plate and the second channel, and hot air reaches the heat conducting plate and exchanges heat with the outside world to dissipate heat of the light emitting unit; the hemispherical protrusions and the second fins increase the heat transfer area.
But after using for a period, in some road conditions departments, there can be ponding in signal lamp department to if some sealed places are ageing, can have in the water infiltration installation storehouse, probably damage the signal lamp, consequently designed following scheme. Further comprising a wireless communication unit; the first channel is provided with a first valve 1.1.2, and the second channel is provided with a second valve 1.2.2; an arc-surface-shaped groove is formed in the upper surface of the second cover plate, a cuboid-shaped groove is connected to the bottom end of the arc-surface-shaped groove, and a liquid level sensor is mounted in the cuboid-shaped groove; the controller controls the first valve, the second valve, the first fan and the second fan to be opened when the measured value of the liquid level sensor is less than or equal to a set threshold value under the condition that the traffic signal lamp is opened; and under the condition that the traffic signal lamp is turned on, when the measured value of the liquid level sensor is greater than a set threshold value, the first valve, the second valve, the first fan and the second fan are closed, and an alarm signal is transmitted through the wireless communication unit.
In addition, the controller controls the traffic signal lamp to be in a working state and controls the red LED lamp beads in one third and the green LED lamp beads in one third to be in a non-working state under the condition that the traffic signal lamp is turned on and the first fan and the second fan are both in a closed state; the red LED lamp beads in the non-working state and the green LED lamp beads in the non-working state are always in the off state.
When the infiltration appears, water can be detained in the second apron top, and liquid level sensor measuring value grow this moment, and the controller can close first, two valves to water can't get into lighting unit. At the moment, the alarm is given in time to remind maintenance. In addition, in this case, because air-cooling heat dissipation cannot be performed, the heat dissipation effect can be greatly reduced, and therefore, a low-power mode is adopted, and only one third of LED lamp beads participate in work, so that the heat productivity is reduced.
While the invention has been shown and described with respect to the preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the invention as defined in the following claims.
Claims (7)
1. A crosswalk traffic signal lamp is characterized by comprising a controller, a cuboid-shaped installation bin, a transparent first cover plate and a transparent second cover plate, the mounting bin comprises a first side plate, a second side plate, a third side plate, a fourth side plate and a bottom plate, the first side plate and the second side plate are opposite, a first rectangular frame and a second rectangular frame positioned below the first rectangular frame are fixed in the mounting bin, the first cover plate is fixed with the first rectangular frame through a first bolt, the second cover plate is fixed with the second rectangular frame through a second bolt, a first sealing gasket is arranged between the first cover plate and the first rectangular frame, a second sealing gasket is arranged between the second cover plate and the second rectangular frame, the first rectangular frame is fixedly connected with the first side plate, the second side plate, the third side plate and the fourth side plate, and the second rectangular frame is fixedly connected with the first side plate, the second side plate, the third side plate and the fourth side plate; the mounting bin is internally provided with a light-emitting unit positioned below the second cover plate, the light-emitting unit comprises a circuit board, a heat conduction block, a plurality of first fins connected with the heat conduction block, a plurality of red LED lamp beads mounted on the circuit board and a plurality of green LED lamp beads mounted on the circuit board, the circuit board is fixed with the first side plate through a first mounting bracket, and the circuit board is fixed with the second side plate through a second mounting bracket; the bottom plate is also provided with a first fan and a second fan, the heat conduction block is positioned between the first fan and the second fan, the first side plate is internally provided with a first channel for connecting the space above the second cover plate and the space below the circuit board, and the second side plate is internally provided with a second channel for connecting the space above the second cover plate and the space below the circuit board; the first cover plate is provided with a rectangular through hole, a heat-conducting plate is fixedly mounted at the rectangular through hole, the heat-conducting plate is sealed with the rectangular through hole through sealant, the upper surface of the heat-conducting plate is provided with a plurality of hemispherical bulges, and the lower surface of the heat-conducting plate is provided with a plurality of second fins.
2. The crosswalk traffic signal lamp according to claim 1, wherein the plurality of red LED lamp beads are divided into a plurality of rows, and the plurality of green LED lamp beads are divided into a plurality of rows; the rows of the red LED lamp beads and the rows of the green LED lamp beads are equal, and the rows of the red LED lamp beads and the rows of the green LED lamp beads are alternately arranged in a row.
3. The crosswalk traffic signal lamp according to claim 1, wherein the width of the heat conductive plate is less than 20 cm.
4. The crosswalk traffic signal lamp according to claim 1, wherein the heat conductive plate, the plurality of second fins, and the plurality of hemispherical protrusions are integrally formed and each made of a copper-aluminum alloy.
5. The crosswalk traffic signal lamp according to claim 1, wherein the top ends of all the hemispherical protrusions are located at the same horizontal plane and flush with the upper surface of the first cover plate.
6. The crosswalk traffic signal lamp according to claim 1, further comprising a wireless communication unit; the first channel is provided with a first valve, and the second channel is provided with a second valve; an arc-surface-shaped groove is formed in the upper surface of the second cover plate, a cuboid-shaped groove with an upward opening is connected to the bottom end of the arc-surface-shaped groove, and a liquid level sensor is mounted in the cuboid-shaped groove; the controller controls the first valve, the second valve, the first fan and the second fan to be opened when the measured value of the liquid level sensor is less than or equal to a set threshold value under the condition that the traffic signal lamp is opened; and under the condition that the traffic signal lamp is turned on, when the measured value of the liquid level sensor is greater than a set threshold value, the first valve, the second valve, the first fan and the second fan are closed, and an alarm signal is transmitted through the wireless communication unit.
7. The pedestrian crossing traffic signal lamp according to claim 1, wherein the controller controls one-third number of red LED lamp beads and one-third number of green LED lamp beads to be in an operating state, and the remaining two-thirds number of red LED lamp beads and the remaining two-thirds number of green LED lamp beads to be in a non-operating state, when the traffic signal lamp is turned on and both the first fan and the second fan are in an off state; the red LED lamp beads in the non-working state and the green LED lamp beads in the non-working state are always in the off state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811149139.7A CN109377774B (en) | 2018-09-29 | 2018-09-29 | Crosswalk traffic signal lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811149139.7A CN109377774B (en) | 2018-09-29 | 2018-09-29 | Crosswalk traffic signal lamp |
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| Publication Number | Publication Date |
|---|---|
| CN109377774A CN109377774A (en) | 2019-02-22 |
| CN109377774B true CN109377774B (en) | 2020-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811149139.7A Active CN109377774B (en) | 2018-09-29 | 2018-09-29 | Crosswalk traffic signal lamp |
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| CN (1) | CN109377774B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110211399A (en) * | 2019-07-10 | 2019-09-06 | 山东星志智能交通科技有限公司 | Intelligent-induction formula traffic signal indicator |
| CN111798682B (en) * | 2020-06-19 | 2022-03-08 | 扬州市法马智能设备有限公司 | Ground type traffic signal lamp with efficient heat dissipation and shock absorption functions |
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| CN106224848A (en) * | 2016-05-28 | 2016-12-14 | 成都蒲江珂贤科技有限公司 | Buried moisture-proof and seepage-proof LED |
| CN107036044A (en) * | 2017-06-12 | 2017-08-11 | 杨晓艳 | A kind of solar LED street lamp with liquid level monitoring function |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016065393A1 (en) * | 2014-10-28 | 2016-05-06 | Jessop Roy Morris | Improved lighting assembly |
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2018
- 2018-09-29 CN CN201811149139.7A patent/CN109377774B/en active Active
Patent Citations (3)
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|---|---|---|---|---|
| CN201651980U (en) * | 2009-05-14 | 2010-11-24 | 钱连合 | High-protection self-compensation infrared lamp |
| CN106224848A (en) * | 2016-05-28 | 2016-12-14 | 成都蒲江珂贤科技有限公司 | Buried moisture-proof and seepage-proof LED |
| CN107036044A (en) * | 2017-06-12 | 2017-08-11 | 杨晓艳 | A kind of solar LED street lamp with liquid level monitoring function |
Non-Patent Citations (2)
| Title |
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| Analysis on LED street lamp cooling using electromagnetic fans;Z.L.Guo et al;《2017 33rd Thermal Measurement, Modeling & Management Symposium (SEMI-THERM)》;20170413;全文 * |
| 大功率白光LED封装设计与研究进展;陈明祥 等;《半导体光电》;20061231;第27卷(第6期);全文 * |
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| CN109377774A (en) | 2019-02-22 |
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