CN113586999A - Self-power-off explosion-proof lamp with high-temperature protection - Google Patents
Self-power-off explosion-proof lamp with high-temperature protection Download PDFInfo
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- CN113586999A CN113586999A CN202110985615.4A CN202110985615A CN113586999A CN 113586999 A CN113586999 A CN 113586999A CN 202110985615 A CN202110985615 A CN 202110985615A CN 113586999 A CN113586999 A CN 113586999A
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- connecting seat
- power
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- cavity
- explosion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
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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
- F21V25/00—Safety devices structurally associated with lighting devices
- F21V25/02—Safety devices structurally associated with lighting devices coming into action when lighting device is disturbed, dismounted, or broken
- F21V25/04—Safety devices structurally associated with lighting devices coming into action when lighting device is disturbed, dismounted, or broken breaking the electric circuit
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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
- F21V25/00—Safety devices structurally associated with lighting devices
- F21V25/10—Safety devices structurally associated with lighting devices coming into action when lighting device is overloaded, e.g. thermal switch
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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
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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
- F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
- F21V29/89—Metals
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The invention provides a self-power-off explosion-proof lamp with high-temperature protection, which comprises: the LED lamp comprises a lamp body and a lamp body, wherein the lamp body comprises a shell, an LED lamp panel arranged in the shell and a light-transmitting cover positioned at a light-emitting end of the LED lamp panel, and a power line is arranged at the top of the lamp body; the first radiator is attached to the rear surface of the LED lamp panel and used for absorbing heat on the LED lamp panel and radiating the heat; the electric connector assembly is used for connecting a power line and the LED lamp panel, the electric connector assembly comprises a connecting mechanism with heat collection, and when the absorbed heat of the connecting mechanism exceeds a threshold value, the connecting mechanism expands and disconnects the power line from the LED lamp panel. The self-power-off explosion-proof lamp with high-temperature protection has the advantages of compact structure, good heat dissipation effect, capability of realizing mechanical power-off when the temperature is too high, safety and reliability, prolonged service life of the lamp body, capability of manually realizing reconnection after high-temperature power-off, and convenience and rapidness in operation.
Description
Technical Field
The invention relates to an explosion-proof lamp, in particular to a self-power-off explosion-proof lamp with high-temperature protection.
Background
With the rapid development of science and technology, the lighting lamps are widely used in production, storage and rescue, and the variety of the lighting lamps is more and more. Since the lighting fixtures generally use metal halide lamps or fluorescent lamps as a light source, electric sparks are inevitably generated or hot surfaces are inevitably formed during operation, which may cause explosion accidents once they meet explosive gases, dusts, or mixtures thereof at a production or rescue site. Therefore, it is an important issue to prevent the explosion of the lighting fixture in a dangerous place where explosive gas, dust or a mixture thereof exists. The existing explosion-proof lamp achieves the aim of explosion prevention by limiting the temperature of the surface of a shell, which is in contact with explosive gas and dust, of electric arcs and sparks generated in the lamp.
With the gradual maturity of the LED technology, compared to metal halide lamps or fluorescent lamps, the LED light source has the advantages of small heat productivity, low power consumption, low working voltage, long service life, etc., so that the LED light source can be applied to explosion-proof lamps, especially portable explosion-proof lamps, and is an ideal light source.
However, under some specific conditions, it takes 24 hours to continuously provide high power illumination, and the long-time high power illumination causes the LED lamp to generate a large amount of heat, which may affect the service life of the internal devices and even cause explosion hazard when the heat exceeds a certain value. Therefore, there is a need to develop a lamp that effectively solves this problem.
Disclosure of Invention
【1】 Technical problem to be solved
The invention aims to provide an automatic power-off explosion-proof lamp with high-temperature protection, which has a good heat dissipation function and can automatically power off when the temperature is too high.
【2】 Technical scheme for solving problems
The invention provides a self-power-off explosion-proof lamp with high-temperature protection, which comprises:
the LED lamp comprises a lamp body, a lamp body and a lamp body, wherein the lamp body comprises a shell, an LED lamp panel 2 arranged in the shell and a light-transmitting cover 11 positioned at the light-emitting end of the LED lamp panel, and a power line is arranged at the top of the lamp body;
the first radiator 9 is attached to the rear surface of the LED lamp panel 2 and used for absorbing heat on the LED lamp panel 2 and radiating the heat;
the electric connector assembly is used for connecting a power line and the LED lamp panel 2, the electric connector assembly comprises a connecting mechanism with heat collection, and when the absorbed heat of the connecting mechanism exceeds a threshold value, the connecting mechanism expands to disconnect the power line from the LED lamp panel 2.
Further, the electric connector subassembly is including deciding connecting seat 4, moving connecting seat 5 and coupling mechanism 6, decide connecting seat 4 and fix in the lamp body, decide be equipped with on connecting seat 4 with the first contact group that the power cord electricity is connected, move connecting seat 5 activity and set up decide one side of connecting seat, move be equipped with on connecting seat 5 with LED lamp plate 2 electricity is connected, and is used for contacting second contact group 51 in order to realize the electricity and connect with first contact group, coupling mechanism fixes decide the lateral wall of connecting seat 4 and with move connecting seat 5 and connect, be equipped with the cavity in the coupling mechanism, produce the inflation and trigger the pin rod action of being connected with moving connecting seat 5 and make connecting seat 5 break away from when its absorptive heat surpasss the threshold value decide connecting seat 4.
Further, decide connecting seat 4 and fix including whole for cylindrical and level the connecting seat body is decided in the lamp, the lower bottom surface of deciding connecting seat 4 is provided with the first contact group 43 of being connected with the power cord, it has 3 at least perpendicular slide bars 42 to decide the last circumference equipartition of connecting seat 4, move connecting seat 5 with perpendicular slide bar connection and pass through perpendicular slide bar sliding fit is in decide the lower extreme of connecting seat, the top of moving the connecting seat be equipped with the second contact group that first contact group corresponds, decide the connecting seat with move and be equipped with between the connecting seat and make move the first elastomeric element 53 of connecting seat decurrent trend of motion, the lateral wall surplus of moving the connecting seat is equipped with the draw-in groove 52 that is used for being connected with coupling mechanism.
Furthermore, a pull rope 41 for resetting is fixed at the top of the vertical slide rod, a rope hole for the pull rope to pass through is formed in the shell, the pull rope passes through the rope hole and extends out of the shell, and a pull block is fixed at the end of the pull rope.
Further, the top of the fixed connection seat 4 is horizontally slidably provided with a sliding rod 31 and a third elastic member 33 which enables the sliding rod to have an inward movement tendency, the head of the sliding rod 31 faces one of the vertical sliding rods 42, the top of the vertical sliding rod 42 is fixed with a pressing block 421, the side wall of the pressing block 421 is provided with a first inclined guide surface 421a which is arranged downwards and a first thrust surface 421b which is arranged above the first inclined guide surface, the head of the sliding rod 31 is provided with an inclined guide block 32, and the inclined guide block 32 is provided with a second inclined guide surface 32a which is arranged upwards and corresponds to the first inclined guide surface 421a and a second thrust surface 32b which corresponds to the first thrust surface 421 b; when the pressing block is not in contact with the inclined guide block, the tail part of the sliding rod 31 is positioned in the shell or is flush with the outer wall of the shell; when the vertical sliding rod moves to the lower limit position, the pressing block 421 contacts with the inclined guide block, and the tail of the sliding rod is delayed to the outside of the shell.
Further, the connecting mechanism 6 includes a cylinder body 61 which is circular ring-shaped as a whole, a receiving hole 60 for receiving the movable connecting seat is formed in the center of the cylinder body 61, a cavity 610 is formed in the cylinder body 61, the cavity 610 is connected with the first radiator 9 through two pipelines, at least two first sliding plug holes 611 which are communicated with the cavity are uniformly distributed in the circumferential direction of the side wall of the cylinder body 61, the axes of the first sliding plug holes 611 are perpendicular to and intersect with the axis of the cylinder body 61, a first sliding plug 63 is slidably arranged in the first sliding plug hole 611, a sliding plug rod 631 is fixed at the front end of the first sliding plug, the sliding plug rod 613 passes through the cavity and extends into the receiving hole 60 to form a pin rod connected with the movable connecting seat, a first adjusting stud 65 is screwed to the outer end of the sliding plug cavity, a second elastic component 64 which enables the first sliding plug to have an inward movement tendency is arranged between the adjusting stud 65 and the sliding plug, when the medium in the cavity expands under high temperature, the sliding plug is pushed to move outwards until the pin rod is separated from the movable connecting seat.
Further, a second sliding cavity 613 communicated with the cavity is further formed in the side wall of the cylinder body 61, a second sliding plug 67 is slidably arranged in the second sliding cavity 613, a sealing cover 68 is fixed to the end portion of the second sliding cavity 613, an adjusting bolt 69 is connected to the sealing cover 68 in a threaded manner, the head of the adjusting bolt 69 penetrates through the sealing cover 68 and then is rotatably connected with the second sliding plug 67, and an adjusting portion with a regular polygon cross section is arranged at the tail of the adjusting bolt.
Further, the first radiator 9 includes a radiator body 91 which is integrally cylindrical, radiating fins 92 are evenly distributed on the side wall of the radiator body in the circumferential direction, a central hole 910 is formed through the two ends of the radiator body 91, a flow passage 913 which is bent in a reciprocating manner is formed in the radiator body 91, and the flow passage is connected with the cavity of the cylinder body of the connecting mechanism through a pipeline.
Further, the expansion coefficient of the medium in the cavity
Wherein n is the number of the first sliding plugs, R is the radius of the first sliding plugs, R is the radius of the sliding plug rod, L1 is the length of the sliding plug rod inserted into the movable connecting seat, t2 is the trigger temperature, t1 is the normal temperature of 20-25 ℃, V is the trigger temperaturet1The total volume of the inner cavity and the flow passage at normal temperature.
Further, a second radiator 7 is arranged at the lower end of the cylinder body, and a fan 8 is arranged on the first radiator 9 and/or the second radiator 7.
【3】 Advantageous effects
The self-power-off explosion-proof lamp with high-temperature protection is provided with the double radiators, has good heat dissipation function and is suitable for a high-power LED lamp working for a long time; the outer wall of the shell is made of metal and is provided with radiating fins, so that the radiating effect is further improved, and the service life is prolonged; the cylinder body is arranged and communicated with a flow passage in the radiator, so that the radiating effect is greatly improved; when the temperature of the medium in the cylinder body exceeds a certain value, the medium expands when heated, pushes the sliding plug and acts to separate the movable connecting seat from the sliding plug rod, moves downwards under the action of elasticity and separates from the fixed connecting seat, so that the mechanical automatic power-off is realized, and the safety and the reliability are high; an adjusting mechanism is arranged behind the first sliding plug, the compression amount of the spring can be adjusted according to requirements, and further the pushing force of the medium on the sliding plug is adjusted to adapt to different media and temperatures; the second sliding plug and the adjusting mechanism are arranged for medium injection, and the position of the sliding plug can be adjusted according to requirements, so that the volume of the inner cavity is adjusted, the pressure of the medium is adjusted, and the use requirements of the medium with different thermal expansion coefficients and the trigger temperature can be met; the head of the adjusting bolt can be adjusted externally, and can be loosened to increase the internal volume when being triggered, so that the first sliding plug on the cylinder body at normal temperature moves outwards, and the movable connecting seat is reconnected with the fixed connecting seat; the vertical sliding rod is arranged, so that the assembly is convenient, the motion track of the movable connecting seat is convenient to control, and the reconnection after triggering is convenient; the horizontal sliding rod is arranged, an indicating function is achieved after the horizontal sliding rod is triggered, when the sliding rod is positioned outside the shell, the internal temperature is indicated to be overhigh, the internal electric connection is disconnected, and the sliding rod is intersected with the traditional electric control, so that the horizontal sliding rod has better stability and reliability and does not need electric drive; the push-stop surfaces of the pressing block and the inclined guide block are provided with sawteeth, the vertical sliding rod cannot move upwards in a compressed state, the horizontal sliding rod needs to be stirred to slide outwards and can move upwards in the direction of the vertical sliding rod after being separated from the pressing block, and the movable connecting seat has a locking function, so that misoperation is avoided, and the reliability is improved; the self-power-off explosion-proof lamp with high-temperature protection has the advantages of compact structure, good heat dissipation effect, capability of realizing mechanical power-off when the temperature is too high, safety and reliability, prolonged service life of the lamp body, capability of manually realizing reconnection after high-temperature power-off, and convenience and rapidness in operation.
Drawings
FIG. 1 is a schematic structural diagram of a self-powered-off explosion-proof lamp with high temperature protection according to the present invention;
FIG. 2 is a schematic view of another embodiment of the self-powered explosion-proof lamp with high temperature protection according to the present invention;
FIG. 3 is a cross-sectional view of the self-powered explosion-proof lamp with high temperature protection of the present invention;
FIG. 4 is another angular cross-sectional view of the self-interrupting explosion-proof lamp with high temperature protection of the present invention;
FIG. 5 is an enlarged view of portion A of FIG. 4;
FIG. 6 is a schematic diagram showing the state of the slide rod when the self-powered-off explosion-proof lamp with high temperature protection is triggered according to the present invention;
FIG. 7 is a cross-sectional view of the cylinder of the self-interrupting explosion-proof lamp with high temperature protection of the present invention;
FIG. 8 is an enlarged view of portion B of FIG. 7;
FIG. 9 is an enlarged view of portion C of FIG. 7;
FIG. 10 is a schematic view of the electrical connector assembly of the self-interrupting explosion-proof lamp with high temperature protection of the present invention;
FIG. 11 is a schematic structural view of the connection structure of the self-power-off explosion-proof lamp with high temperature protection of the present invention when triggered;
FIG. 12 is a schematic view of a first heat sink of the self-powered explosion-proof lamp with high temperature protection according to the present invention;
FIG. 13 is a schematic view of another angle structure of the first heat sink of the self-powered explosion-proof lamp with high temperature protection of the present invention;
FIG. 14 is a cross-sectional view of a first heat sink of the self-powered down explosion-proof lamp with high temperature protection of the present invention;
FIG. 15 is an expanded view of the flow channel in the first heat sink of the self-powered explosion-proof lamp with high temperature protection of the present invention;
fig. 16 is a schematic structural diagram of a second heat sink of the self-power-off explosion-proof lamp with high temperature protection of the present invention.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the accompanying drawings.
Referring to fig. 1 to 16, the present invention provides a self-power-off explosion-proof lamp with high temperature protection, which can automatically power off at high temperature; the lamp comprises a lamp body, a first heat sink and an electrical connector assembly.
The lamp body comprises a shell, an LED lamp panel 2 and a light-transmitting cover 11, wherein a mounting cavity (cavity) for mounting other parts or components is formed in the lamp body, the shell in the embodiment adopts a metal shell and has a certain heat dissipation function, the shell comprises a first shell 12, a second shell 13, a third shell 14 and a fourth shell 15 which are sequentially arranged from bottom to top, the first shell 12 is in a circular ring shape and is used for mounting the light-transmitting cover 11, the light-transmitting cover 11 is mounted between the first shell 12 and the second shell 13, the diameters of the first shell 12 and the second shell 13 are the same, the opening end of the second shell 13 is arranged downwards, the LED lamp panel is mounted at the opening end, two mounting holes 131 for mounting a support are uniformly distributed in the circumferential direction of the side wall of the second shell, and meanwhile, heat radiating fins are uniformly distributed in the circumferential direction of the outer wall of the second shell; the third shell is a cylindrical structure, the diameter of the third shell is smaller than that of the second shell, the third shell is connected to the second shell through bolts or threads and can be integrally formed with the second shell, the side wall of the third shell is also provided with a heat dissipation part, the fourth shell is semicircular, the diameter of the lower end of the fourth shell is the same as that of the third shell, the fourth shell is connected to the upper end of the third shell 14 through bolts, the top of the fourth shell 15 is provided with a cylindrical bulge 151, the upper end surface of the cylindrical bulge 151 is penetrated with a wire hole for allowing a power cord to pass through, the wire hole is a stepped hole with a large upper end and a small lower end, a sealing plug 17 is arranged in the stepped hole, the sealing plug 17 is cylindrical, the side wall of the sealing plug is provided with an annular bulge 171 for contacting with the stepped surface of the wire hole to realize axial positioning, two end surfaces of the sealing plug are penetrated with central holes for allowing the power cord to pass through, therefore, the diameter of the sealing plug is the same as that of the power cord, or slightly smaller than the diameter of the power line, the open end of the upper end of the wire hole is in threaded connection with a bolt head 16, two ends of the bolt head penetrate through a center hole, the upper end of the sealing plug is sleeved in the center hole of the bolt head, and the bottom of the bolt head is in contact with the annular bulge on the side wall of the sealing plug 17, so that the sealing plug 17 is fixed.
A first heat sink 9 is attached to the rear (upper) surface of the LED lamp panel 2 for absorbing heat from the LED lamp panel 2 and dissipating the heat, referring to fig. 3-4, and fig. 12-15, the first heat sink 9 includes a heat sink body 91 which is a cylindrical body, a central hole 910 is formed through the upper and lower ends of the heat sink body 91, concave holes are formed at both ends of the central hole 910, the diameter of the concave hole is larger than that of the central hole, an even number of hole bodies are uniformly distributed on the bottom surface of the concave hole, a reciprocating bent flow channel 913 is formed between the hole bodies, during actual processing, a copper pipe can be inserted into the hole bodies, and a flow channel which is bent in a reciprocating manner on site, a connecting pipe can be arranged between two adjacent hole bodies at the upper end of the heat sink body 91, a connecting pipe is also arranged between two adjacent hole bodies at the lower end of the heat sink body 91, the connecting pipe at the upper end and the lower end are arranged in a staggered manner, thereby forming a reciprocating bent flow passage 913, the inlet and outlet of which are located at the upper end of the radiator body; an annular substrate 93 is arranged at the bottom of the radiator body, the substrate 93 is used for contacting with the LED lamp panel 2 to realize heat transfer, and clamping grooves 930 are uniformly distributed on the edge of the substrate 93 in the circumferential direction and used for fixing and mounting the substrate 93; radiating fins 92 are uniformly distributed on the circumferential direction of the side wall of the radiator body, and the clamping groove 930 is located between two adjacent radiating fins.
The electric connector assembly is used for connecting a power line and the LED lamp panel 2, comprises a connecting mechanism with heat collection, and expands and disconnects the power line from the LED lamp panel 2 when the heat absorbed by the connecting mechanism exceeds a (temperature) threshold; specifically, the electric connector subassembly is including deciding connecting seat 4, move connecting seat 5 and coupling mechanism 6, decide connecting seat 4 and pass through the bolt fastening in the lamp body, be equipped with the first contact group 43 of being connected with the power cord electricity on deciding connecting seat 4, move connecting seat 5 activity setting in the one side of deciding the connecting seat, be equipped with on moving connecting seat 5 and be connected with LED lamp plate 2 electricity, and be used for contacting second contact group 51 in order to realize the electricity with first contact group, coupling mechanism fixes the lateral wall of deciding connecting seat 4 and is connected with moving connecting seat 5, be equipped with the cavity in coupling mechanism, produce the inflation and trigger the pin rod action of being connected with moving connecting seat 5 and make connecting seat 5 break away from when its absorptive heat surpasss the threshold value decide connecting seat 4.
Referring to fig. 3-4 and 7-11, the structure of the connecting socket will be described in detail, wherein the fixed connecting socket 4 comprises a fixed connecting socket body which is cylindrical and horizontally fixed in the lamp body, the fixed connecting socket body is coaxially arranged with the lamp body and is located at the upper end of the lamp body installation cavity, the connecting socket body is made of insulating material, in this embodiment, made of high-strength plastic, a cavity is formed between the top of the fixed connecting socket body and the top of the lamp body installation cavity, a partition plate 44 is arranged at the center of the upper end of the connecting socket body, the partition plate 44 is a vertically arranged plate (sheet) structure, two or three first contact sets 43 are respectively located at two sides of the partition plate 44, and comprise a first connecting socket arranged at the upper end of the fixed connecting socket body and a first contact arranged at the bottom of the fixed connecting socket body, a bolt (screw) is arranged on the first connecting socket, the conductive column is used for screwing and fixing the conducting wire, and is arranged between the connector and the first contact and used for conducting electricity; meanwhile, an isolation sleeve 46 is arranged in a cavity at the upper end of the fixed connecting seat, the isolation sleeve 46 is cylindrical, the upper end and the lower end of the isolation sleeve are bent outwards to form contact parts, the contact part at the upper end is contacted with the top surface of the cavity (shell), and the contact part at the lower end is contacted with the top surface of the fixed connecting seat body, so that the isolation plate, the power line and the contact group are sleeved in the isolation sleeve 46 to play a role in protection; at least 3 vertical sliding rods 42 are uniformly distributed on the fixed connecting seat 4 in the circumferential direction, in the embodiment, three vertical sliding rods are arranged, the vertical sliding rods are positioned outside the isolation sleeve, the movable connecting seat 5 is positioned at the lower end of the fixed connecting seat 4, the upper end of the movable connecting seat is rigidly connected with the vertical sliding rods 42 and is in sliding fit under the fixed connecting seat through the vertical sliding rods, the movable connecting seat is integrally cylindrical, the diameter of the movable connecting seat is smaller than that of the fixed connecting seat, a second contact group corresponding to the first contact group is arranged at the top of the movable connecting seat, and the second contact group comprises two or three contacts which are in one-to-one correspondence with the contacts on the first contact group; in order to avoid mutual interference between different contacts, in the embodiment, the bottom surface of the fixed connecting seat is circumferentially and uniformly provided with grooves with the same number as the contacts, the contacts on the first contact group are positioned in the grooves, the height of the contacts is smaller than the depth of the grooves, so that the top surface of the contacts is positioned above the bottom surface of the fixed connecting seat, the overall safety is improved, correspondingly, bosses with the same number as the contacts are circumferentially and uniformly arranged on the top surface of the movable connecting seat, the contacts on the movable connecting seat are arranged on the bosses, the diameter of each boss is smaller than that of each groove, and when in contact, the contacts are positioned in a space formed by the top surfaces of the bosses and the bottom surface of each groove, so that mutual interference is avoided; decide the connecting seat and move and set up first elastomeric element 53 between the connecting seat, this first elastomeric element makes the decurrent trend of motion of connecting seat, there is the trend that makes the second contact group have and break away from first contact group promptly, it is specific, upper surface circumference equipartition moving the connecting seat has at least three spring hole 53, first elastomeric element 45 is compression spring and installs in spring hole 53, in order to avoid popping out when triggering, in the embodiment, this first elastomeric element's lower extreme is fixed at spring hole bottom surface, the upper end border of moving the connecting seat is equipped with the chamfer, convenient assembly, lateral wall moving the connecting seat is equipped with an annular draw-in groove 52 (recess), it is used for being connected with coupling mechanism.
In this embodiment, in order to facilitate triggering and to realize quick reconnection after the disconnection, in this embodiment, a pull rope 41 for resetting is fixed at the top of the vertical slide bar, the pull rope 41 is made of plastic or nylon with higher strength, and meanwhile, a rope hole for allowing the pull rope to pass through is formed in the shell, the pull rope passes through the rope hole and extends out of the shell, and a pull block or a pull ring is fixed at the end of the pull rope, so that a force is conveniently applied to realize quick pulling.
Referring to fig. 5-6, a sliding rod 31 and a third elastic member 33 are disposed at the top of the fixed connection seat 4, the sliding rod 31 is horizontally slidably mounted on the top surface of the fixed connection seat 4, and the head of the sliding rod faces one of the vertical sliding rods 42, that is, the axis of the sliding rod is vertical and intersects with the axis of the vertical sliding rod 42, and a third elastic member 33 is disposed at the top of the fixed connection seat, and the third elastic member makes the sliding rod 31 move toward the vertical sliding rod; meanwhile, an inclined guide block 32 is fixed at the head of the slide bar, a second inclined guide surface 32a and a second thrust surface 32b are arranged on the inclined guide block 32, the second inclined guide surface 32a is an upward inclined surface and has the same slope as the first inclined guide surface, and the second thrust surface is connected to the lower end of the second inclined guide surface, is a vertical surface and is used for contacting with the first thrust surface; when the slide bar 31 is in a normal state and the press block is not in contact with the inclined guide block, the tail part of the slide bar is positioned in the shell or is flush with the outer wall of the shell; when the connecting mechanism is triggered, the connecting mechanism is separated from the movable connecting seat, the movable connecting seat is pushed to move downwards under the action of the elastic force of the first elastic component, so that the vertical sliding rod moves downwards synchronously, the first inclined guide surface on the pressing block is contacted with the second inclined guide surface on the inclined guide block, the sliding rod 31 is pushed to move outwards under the action of the pushing force until the first thrust surface is contacted with the second thrust surface, the vertical sliding rod moves to the lower limit position at the moment, the tail part of the sliding rod extends out of the shell, and an indicating function is played, which indicates that the movable connecting seat and the fixed connecting seat are in a separated state at the moment; in order to improve the security, avoid the mistake to draw the stay cord, be provided with one or more sawtooth between first thrust surface and second thrust surface, under the slide bar compresses tightly the state, the briquetting can only realize downstream, and can't realize the upward movement, be provided with a cell body or hole body at the afterbody of slide bar simultaneously, when first thrust surface and second thrust surface contact, this cell body or hole body leak outside with the casing, at this moment, can outwards stimulate this slide bar through specialized tool, make the sawtooth on first thrust surface and the second thrust surface break away from, at this moment, can stimulate the stay cord and reset, it has improved the security, avoid the mistake to touch.
Referring to fig. 3-4 and 7-11, the connection mechanism 6 includes a cylinder 61 with a circular ring shape as a whole, the cylinder 61 is fixed on the lower bottom surface of the fixed connection seat, a receiving hole 60 for receiving the movable connection seat is formed in the center of the cylinder 61, the cross section of the receiving hole has the same shape as that of the movable connection seat, in this embodiment, the receiving hole is circular, a cavity 610 is formed in the cylinder 61, in this embodiment, the cavity is an annular pipeline, the cavity 610 (two ends of the annular pipeline) is communicated with a flow channel 913 on the first heat sink 9 through two pipelines, so as to form a circulating cooling pipeline, in order to make the internal medium (liquid or gas) flow, a micro pump (not shown in the figure) is arranged on the pipeline, so that the internal medium flows to drive heat to flow, thereby achieving the purpose of heat dissipation; be equipped with second radiator 7 at the lower extreme lateral wall of cylinder body 61, this second radiator includes a laminating in the tourus 71 of cylinder body bottom surface, and circumference equipartition is at the fin 72 of this tourus bottom surface, the center of second radiator 7 forms the centre bore that can hold the connecting seat and pass, an equipment for moving the connecting seat moves down when triggering, in order to further improve the radiating effect, top at first radiator or be provided with fan 8 in the bottom of second radiator, a bottom for initiatively dispel the heat to the radiator, in order to improve the radiating efficiency, consequently, need offer the louvre that is used for the radiating at the lateral wall of lamp body, be equipped with the filter screen on the louvre, avoid in dust etc. gets into the lamp.
At least two first sliding plug holes 611 communicated with the cavity are uniformly distributed on the circumferential direction of the side wall of the cylinder body 61, the axis of the first sliding plug holes 611 is vertical to and intersects with the axis of the cylinder body 61, a first sliding plug 63 is slidably arranged in the first sliding plug holes 611, a sliding plug rod 631 is fixed at the front end of the first sliding plug, the sliding plug rod 613 penetrates through the cavity and extends into the accommodating hole 60, the sliding plug rod 631 forms a pin rod used for being connected with the movable connecting base, the head end part of the pin rod is provided with a round angle or an oblique angle, the rod cavity side of the sliding plug rod is communicated with the cavity 610, a medium can push the first sliding plug to move outwards after certain pressure is applied, a first adjusting bolt 65 is connected to the tail part (the side close to the outer edge of the cylinder body) of the first sliding plug holes 611 in a threaded mode, and a second elastic component 64 is arranged between the adjusting bolt 65 and the first sliding plug 63 and is a compression spring in the embodiment, and the compression spring enables the first sliding plug to have a radially inward movement tendency, in order to improve the overall safety and reliability, an annular clamping groove is further formed in the outer end of the first sliding plug hole, and a clamp spring 66 is arranged in the annular clamping groove and used for limiting the movement external limit of the adjusting stud 65; when the medium in the cavity expands by high temperature (heat), the sliding plug is pushed to overcome the spring force and move outwards until the pin rod is separated from the movable connecting seat, so that the movable connecting seat is separated from the fixed connecting seat under the action of the spring force; the adjustment of the compression amount of the second elastic component is realized through the rotation of the stud, and then the thrust generated by the second elastic component on the first sliding plug is adjusted to adapt to media with different thermal expansion coefficients; when the compression amount of the second elastic component is larger, larger medium pressure is needed on the premise that the first sliding plug moves for the same stroke; when the compression amount of the second elastic component is smaller, the required medium pressure is smaller on the premise that the first sliding plug moves for the same stroke; a guide sleeve hole 612 coaxial with the first sliding plug hole is arranged on the inner wall (inner wall of the central hole) of the cylinder body, a guide sleeve 62 is fixed in the guide sleeve hole 612, and a sliding plug rod hole for allowing the first sliding plug rod 631 to pass through is arranged on the guide sleeve.
In order to adapt to different media and realize quick adjustment of internal pressure, the side wall of the cylinder body 61 is further provided with a second sliding cavity 613 communicated with the cavity, a second sliding plug 67 is slidably arranged in the second sliding cavity 613, a sealing cover 68 is fixed at the end (close to the outer edge) of the second sliding cavity 613, the center of the sealing cover 68 is provided with a screw hole, an adjusting bolt 69 is connected with the screw hole in a threaded manner, the head of the adjusting bolt 69 passes through the sealing cover 68 and then is rotatably connected with the second sliding plug 67, the tail of the adjusting bolt is provided with an adjusting part with a regular polygon cross section, the second sliding plug 67 can slide by rotating and adjusting the adjusting bolt, so that the quick adjustment of the volume of the internal cavity is realized, namely the quick adjustment of the internal medium pressure is realized; for convenience of operation, a hole body can be arranged on the side wall of the shell, the adjusting part of the adjusting bolt is positioned in the hole body, an adjusting hole (such as a hexagon socket hole) is arranged at the end part of the adjusting part, and the adjusting bolt can be quickly adjusted by inserting an adjusting tool; when assembled or when reassembled after triggering, the adjustment of the adjusting bolt is performed by a torque wrench to generate the proper pressure in the cylinder.
In this embodiment, the liquid or gas in the cylinder serves as a medium for heat transfer and also serves as a carrier for triggering the connection mechanism, and the expansion coefficient of the liquid or gas satisfies the following condition:
wherein β is the coefficient of thermal expansion at t2 in units of 1/deg.C; n is the number of the first sliding plugs and is a positive integer; r is the radius of the first sliding plug and is in mm; r the radius of the plunger rod, in mm; l1 is the length of the sliding plug rod inserted into the movable connecting seat, and the unit is mm; t2 is trigger temperature in units of ℃; t1 is 20-25 deg.C at normal temperature; vt1Is at room temperature insideThe total volume of the cavity and the flow passage is in mm3In order to improve the reliability of the overall operation and in consideration of the range of the thermal expansion coefficient, the distance of the movement of the plunger rod is 0.5mm to 2mm in the present embodiment.
The working process of the self-power-off explosion-proof lamp with high-temperature protection of the invention is explained as follows:
when the lamp body works normally, the first radiator absorbs heat emitted by the LED lamp, part of the heat is radiated, the other part of the heat flows into the cylinder body along with internal media, the second radiator on the side wall of the cylinder body assists in radiating, and the first radiator and the second radiator are accelerated to radiate through the fan;
when the temperature exceeds a certain (threshold) value, the internal medium is heated to expand, the first sliding plug is pushed to move outwards against the spring force, namely the sliding plug rod also moves outwards synchronously until the end part of the sliding plug rod is separated from the movable connecting seat, the movable connecting seat moves downwards under the action of the spring force at the upper end of the movable connecting seat, and the contact on the movable connecting seat is separated from the contact on the fixed connecting seat, so that mechanical power failure is realized;
after the triggering, the vertical sliding rod moves to a lower limit position, and the pressing block at the end part pushes the inclined guide block to move outwards, so that the end part of the horizontally arranged sliding rod extends out of the shell, and the triggering of the internal thermal protection device is indicated;
when the movable connecting seat and the fixed connecting seat are required to be reconnected and the internal temperature is restored to a normal state, the position of the second sliding plug is adjusted to enable the first sliding plug to move outwards in the radial direction, the horizontal sliding rod is stirred to move outwards and be separated from the pressing block, the pull rope is pulled to enable the connecting seat to move upwards to an upper limit position, the second sliding plug is adjusted through the torque wrench to enable the first sliding plug to move inwards and enable the sliding plug rod to be connected to the movable connecting seat, and therefore the reconnection of the movable connecting seat and the fixed connecting seat is achieved, and the reconnection of the contact is achieved.
The self-power-off explosion-proof lamp with high-temperature protection is provided with the double radiators, has good heat dissipation function and is suitable for a high-power LED lamp working for a long time; the outer wall of the shell is made of metal and is provided with radiating fins, so that the radiating effect is further improved, and the service life is prolonged; the cylinder body is arranged and communicated with a flow passage in the radiator, so that the radiating effect is greatly improved; when the temperature of the medium in the cylinder body exceeds a certain value, the medium expands when heated, pushes the sliding plug and acts to separate the movable connecting seat from the sliding plug rod, moves downwards under the action of elasticity and separates from the fixed connecting seat, so that the mechanical automatic power-off is realized, and the safety and the reliability are high; an adjusting mechanism is arranged behind the first sliding plug, the compression amount of the spring can be adjusted according to requirements, and further the pushing force of the medium on the sliding plug is adjusted to adapt to different media and temperatures; the second sliding plug and the adjusting mechanism are arranged for medium injection, and the position of the sliding plug can be adjusted according to requirements, so that the volume of the inner cavity is adjusted, the pressure of the medium is adjusted, and the use requirements of the medium with different thermal expansion coefficients and the trigger temperature can be met; the head of the adjusting bolt can be adjusted externally, and can be loosened to increase the internal volume when being triggered, so that the first sliding plug on the cylinder body at normal temperature moves outwards, and the movable connecting seat is reconnected with the fixed connecting seat; the vertical sliding rod is arranged, so that the assembly is convenient, the motion track of the movable connecting seat is convenient to control, and the reconnection after triggering is convenient; the horizontal sliding rod is arranged, an indicating function is achieved after the horizontal sliding rod is triggered, when the sliding rod is positioned outside the shell, the internal temperature is indicated to be overhigh, the internal electric connection is disconnected, and the sliding rod is intersected with the traditional electric control, so that the horizontal sliding rod has better stability and reliability and does not need electric drive; the push-stop surfaces of the pressing block and the inclined guide block are provided with sawteeth, the vertical sliding rod cannot move upwards in a compressed state, the horizontal sliding rod needs to be stirred to slide outwards and can move upwards in the direction of the vertical sliding rod after being separated from the pressing block, and the movable connecting seat has a locking function, so that misoperation is avoided, and the reliability is improved; the self-power-off explosion-proof lamp with high-temperature protection has the advantages of compact structure, good heat dissipation effect, capability of realizing mechanical power-off when the temperature is too high, safety and reliability, prolonged service life of the lamp body, capability of manually realizing reconnection after high-temperature power-off, and convenience and rapidness in operation.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A self-power-off explosion-proof lamp with high-temperature protection is characterized by comprising:
the LED lamp comprises a lamp body, a lamp body and a lamp body, wherein the lamp body comprises a shell, an LED lamp panel 2 arranged in the shell and a light-transmitting cover 11 positioned at the light-emitting end of the LED lamp panel, and a power line is arranged at the top of the lamp body;
the first radiator 9 is attached to the rear surface of the LED lamp panel 2 and used for absorbing heat on the LED lamp panel 2 and radiating the heat;
the electric connector assembly is used for connecting a power line and the LED lamp panel 2, the electric connector assembly comprises a connecting mechanism with heat collection, and when the absorbed heat of the connecting mechanism exceeds a threshold value, the connecting mechanism expands to disconnect the power line from the LED lamp panel 2.
2. The self-power-off explosion-proof lamp with high temperature protection as claimed in claim 1, wherein: the electric connector subassembly is including deciding connecting seat 4, moving connecting seat 5 and coupling mechanism 6, decide connecting seat 4 and fix in the lamp body, decide be equipped with on connecting seat 4 with the first contact group of power cord electricity connection, move connecting seat 5 activity setting and be in decide one side of connecting seat, move be equipped with on connecting seat 5 with LED lamp plate 2 electricity connect, and be used for the second contact group 51 of being connected in order to realize the electricity with first contact group contact, coupling mechanism fixes decide the lateral wall of connecting seat 4 and with move connecting seat 5 and be connected, be equipped with the cavity in the coupling mechanism, produce the inflation and trigger the pin lever action of being connected with moving connecting seat 5 and make connecting seat 5 break away from when its absorptive heat surpasss the threshold value decide connecting seat 4.
3. The self-power-off explosion-proof lamp with high temperature protection as claimed in claim 1, wherein: decide connecting seat 4 and fix including whole for cylindrical and level the connecting seat body is decided in the lamp body, the lower bottom surface of deciding connecting seat 4 is provided with the first contact group 43 of being connected with the power cord, decide connecting seat 4 go up the circumference equipartition and have 3 at least perpendicular slide bars 42, move connecting seat 5 with perpendicular slide bar connection and pass through perpendicular slide bar sliding fit is in decide the lower extreme of connecting seat, the top of moving the connecting seat be equipped with the second contact group that first contact group corresponds, decide the connecting seat with move and be equipped with between the connecting seat and make move the first elastomeric element 53 of connecting seat decurrent trend of motion, the lateral wall of moving the connecting seat leaves to be equipped with the draw-in groove 52 that is used for being connected with coupling mechanism.
4. The self-power-off explosion-proof lamp with high temperature protection as claimed in claim 1, wherein: a pull rope 41 for resetting is fixed at the top of the vertical sliding rod, a rope hole for the pull rope to pass through is formed in the shell, the pull rope passes through the rope hole and extends out of the shell, and a pull block is fixed at the end of the pull rope.
5. The self-power-off explosion-proof lamp with high temperature protection as claimed in claim 1, wherein: a slide rod 31 and a third elastic member 33 enabling the slide rod to have an inward movement trend are horizontally slidably arranged at the top of the fixed connection seat 4, the head of the slide rod 31 faces one of the vertical slide rods 42, a press block 421 is fixed at the top of the vertical slide rod 42, a first inclined guide surface 421a arranged downwards and a first thrust surface 421b positioned above the first inclined guide surface are arranged on the side wall of the press block 421, an inclined guide block 32 is arranged at the head of the slide rod 31, and a second inclined guide surface 32a arranged upwards and corresponding to the first inclined guide surface 421a and a second thrust surface 32b corresponding to the first thrust surface 421b are arranged on the inclined guide block 32; when the pressing block is not in contact with the inclined guide block, the tail part of the sliding rod 31 is positioned in the shell or is flush with the outer wall of the shell; when the vertical sliding rod moves to the lower limit position, the pressing block 421 contacts with the inclined guide block, and the tail of the sliding rod is delayed to the outside of the shell.
6. The self-power-off explosion-proof lamp with high temperature protection as claimed in claim 1, wherein: the connecting mechanism 6 comprises a cylinder body 61 which is annular, a containing hole 60 for containing a movable connecting seat is formed in the center of the cylinder body 61, a cavity 610 is formed in the cylinder body 61, the cavity 610 is connected with the first radiator 9 through two pipelines, at least two first sliding plug holes 611 communicated with the cavity are uniformly distributed in the circumferential direction of the side wall of the cylinder body 61, the axis of each first sliding plug hole 611 is vertical to and intersects with the axis of the cylinder body 61, a first sliding plug 63 is slidably arranged in each first sliding plug hole 611, a sliding plug rod 631 is fixed at the front end of each first sliding plug, the sliding plug rod 613 penetrates through the cavity and extends into the containing hole 60 to form a pin rod connected with the movable connecting seat, a first adjusting stud 65 is connected to the outer end of the sliding plug cavity in a threaded manner, a second elastic component 64 enabling the first sliding plug to have an inward movement tendency is arranged between the adjusting stud 65 and the sliding plug, when the medium in the cavity expands under high temperature, the sliding plug is pushed to move outwards until the pin rod is separated from the movable connecting seat.
7. The self-power-off explosion-proof lamp with high temperature protection as claimed in claim 1, wherein: the side wall of the cylinder body 61 is further provided with a second sliding cavity 613 communicated with the cavity, a second sliding plug 67 is slidably arranged in the second sliding cavity 613, a sealing cover 68 is fixed at the end of the second sliding cavity 613, an adjusting bolt 69 is in threaded connection with the sealing cover 68, the head of the adjusting bolt 69 passes through the sealing cover 68 and then is rotatably connected with the second sliding plug 67, and the tail of the adjusting bolt is provided with an adjusting part with a regular polygon cross section.
8. The self-power-off explosion-proof lamp with high temperature protection as claimed in claim 1, wherein: the first radiator 9 comprises a cylindrical radiator body 91, radiating fins 92 are evenly distributed on the side wall of the radiator body in the circumferential direction, center holes 910 penetrate through two ends of the radiator body 91, a reciprocating bent flow channel 913 is formed in the radiator body 91, and the flow channel is connected with a cavity of a cylinder body of the connecting mechanism through a pipeline.
9. The self-power-off explosion-proof lamp with high temperature protection as claimed in claim 1, wherein: coefficient of expansion of the medium within the cavity
Wherein n is the number of the first sliding plugs, R is the radius of the first sliding plugs, R is the radius of the sliding plug rod, L1 is the length of the sliding plug rod inserted into the movable connecting seat, t2 is the trigger temperature, t1 is the normal temperature of 20-25 ℃, V is the trigger temperaturet1The total volume of the inner cavity and the flow passage at normal temperature.
10. The self-power-off explosion-proof lamp with high temperature protection as claimed in claim 1, wherein: the lower end of the cylinder body is provided with a second radiator 7, and a fan 8 is arranged on the first radiator 9 and/or the second radiator 7.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110985615.4A CN113586999B (en) | 2021-08-26 | 2021-08-26 | Self-outage explosion-proof lamp with high temperature protection |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110985615.4A CN113586999B (en) | 2021-08-26 | 2021-08-26 | Self-outage explosion-proof lamp with high temperature protection |
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| CN113586999B CN113586999B (en) | 2023-08-11 |
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| CN116336404A (en) * | 2023-05-29 | 2023-06-27 | 安徽江天大数据科技股份有限公司 | Mining car flame-proof type shooting illumination combined lamp |
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