CN107366843B - Explosion-proof portable lamp - Google Patents
Explosion-proof portable lamp Download PDFInfo
- Publication number
- CN107366843B CN107366843B CN201611187006.XA CN201611187006A CN107366843B CN 107366843 B CN107366843 B CN 107366843B CN 201611187006 A CN201611187006 A CN 201611187006A CN 107366843 B CN107366843 B CN 107366843B
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- Prior art keywords
- explosion
- proof
- lamp
- tail
- cavity
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
- F21L4/00—Electric lighting devices with self-contained electric batteries or cells
- F21L4/08—Electric lighting devices with self-contained electric batteries or cells characterised by means for in situ recharging of the batteries or cells
- F21L4/085—Pocket lamps
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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
- F21V15/00—Protecting lighting devices from damage
- F21V15/01—Housings, e.g. material or assembling of housing parts
- F21V15/015—Devices for covering joints between adjacent lighting devices; End coverings
-
- 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
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/40—Hand grips
- F21V21/406—Hand grips for portable lighting devices
-
- 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
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
-
- 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
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
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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
- F21V25/12—Flameproof or explosion-proof arrangements
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The invention discloses an explosion-proof portable lamp, wherein a tail cover assembly of the explosion-proof portable lamp is provided with a cylindrical explosion-proof layer matched with a sealing tail cover in shape, and a partition plate is arranged in the cylindrical explosion-proof layer to divide a cylindrical space of the explosion-proof layer into a first explosion-proof cavity and a second explosion-proof cavity; make the different equipment of explosion-proof grade can set up and carry out local isolation in the explosion-proof chamber of difference, its dual explosion-proof function that keeps apart further has promoted explosion-proof portable lamp has effectually improved rescue personnel's security and work efficiency.
Description
Technical Field
The invention relates to the field of mobile illumination, in particular to an explosion-proof portable lamp which is applied to a high-risk environment and provides illumination for emergency rescue.
Background
In the current emergency rescue work of high-risk environment (such as mines and places for storing combustible substances), emergency tools, especially lighting tools, have strict requirements on the self explosion-proof performance in order to avoid the ignition of flammable and explosive substances or gas in the environment by electric sparks or high temperature. The existing explosion-proof lighting lamp is arranged by adopting a sealed shell so as to prevent electric sparks from igniting external inflammable objects when the lamp works.
Due to the structure of the lamp, the control circuit, the driving circuit and the power supply with different explosion-proof grades are arranged in the sealed shell. When the switch device of the control circuit performs the switch operation, the sealed shell is easy to generate a gap, and then combustible substances outside the lamp can permeate into the shell to be contacted with the working circuit, particularly the power supply, once the power supply discharges, electric sparks are generated, and the situation is not reasonable.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention aims to provide an explosion-proof portable lamp capable of realizing double explosion suppression, and the sealing performance of the portable lamp is further enhanced.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: an explosion-proof hand lamp comprising: the lamp comprises a lamp body provided with a power supply, a lamp holder which is connected with one end of the lamp body and used for emitting light, and a lamp tail which is connected with the other end of the lamp body and provided with a control circuit; the lamp tail includes: the tail cover assembly is arranged in the tail cover; the tail cover assembly is provided with a cylindrical explosion-proof layer matched with the sealing tail cover in shape, and a partition plate is arranged in the cylindrical explosion-proof layer to divide a cylindrical space into a first explosion-proof cavity and a second explosion-proof cavity. Different cavities can be used in the tail cover according to the explosion-proof grades of the circuit devices, and at least one of the first explosion-proof cavity and the second explosion-proof cavity has double explosion-proof functions.
Furthermore, the first explosion-proof cavity is connected with the lamp body, and is provided with a driving circuit which is respectively connected with the power supply and the inner light-emitting device of the lamp holder and is used for converting the electric energy output by the power supply into a driving current meeting the specification to drive the light-emitting device.
Furthermore, a cable lead-in port communicated with the first explosion-proof cavity and the second explosion-proof cavity is formed in the partition plate; still be provided with the interface that charges on the baffle, the interface that charges runs through sealed tail-hood makes first explosion-proof chamber and the outside intercommunication of lamp tail.
Still further, the second explosion-proof cavity is provided with a control circuit for controlling the driving circuit, and the control circuit is connected with the driving circuit through the cable inlet.
As an improvement, a control key is arranged on the control circuit, a deformable unit is arranged on the area of the sealing tail cover corresponding to the control key, and the deformable unit triggers the control key according to deformation caused by external force.
Furthermore, an electric quantity indicating lamp strip is arranged on the control circuit, and a light-transmitting unit is arranged in an area corresponding to the electric quantity indicating lamp strip through the sealing tail cover.
Further, after the cable introduction port and the charging port are connected with the cable, a sealing ring is arranged at a gap between the cable introduction port and the charging port and the cable.
Furthermore, the lamp body is connected with the lamp holder and the lamp tail in a sealing manner.
Furthermore, a handle is fixedly arranged on the outer wall of the lamp body; and strap connectors are arranged at two ends of the holding part of the handle.
In a further step, the shell of the lamp holder is annularly provided with heat dissipation ribs.
Compared with the prior art, the explosion-proof portable lamp has the advantages that the cylindrical explosion-proof layer is divided into the two explosion-proof cavities which are isolated from each other by the partition plate in the lamp tail assembly, so that equipment with different explosion-proof grades can be arranged in different areas for local isolation, the explosion-proof function of the explosion-proof portable lamp is further improved by double isolation, and the safety and the working efficiency of emergency rescue personnel are effectively improved. Furthermore, the integral arrangement of the partition plates arranged in the cylindrical explosion-proof layer is adopted, so that the cylindrical explosion-proof layer integrates the two functions of internal separation and external separation, the number of internal parts of the portable lamp is simplified, and the production cost is reduced.
Drawings
FIG. 1 is a schematic view of a horizontal sectional structure of an explosion-proof portable lamp;
FIG. 2 is a schematic view of a cross-sectional structure of an explosion-proof portable lamp with a horizontal lamp tail;
FIG. 3 is a schematic perspective view of a lamp tail assembly of an explosion-proof portable lamp;
FIG. 4 is a perspective partial cross-sectional view of a lamp tail of an explosion-proof portable lamp;
fig. 5 is a schematic perspective view of an explosion-proof portable lamp.
The reference signs are: 1. a lamp body; 11. a handle; 112. a strap interface; 2. a lamp cap; 21. heat dissipation ribs; 3. a lamp tail; 31. a tail cap assembly; 311. a cylindrical flame-proof layer; 312. a partition plate; 313. a first explosion-proof chamber; 314. a second explosion-proof chamber; 315. a cable entry; 316. a charging interface; 32. sealing the tail cover; 321. a deformable unit; 322. a light transmitting unit.
Detailed Description
Embodiments of the present invention will be described in further detail below with reference to fig. 1 through 5.
As shown in fig. 1 to 5, an explosion-proof portable lamp includes: a lamp body 1 provided with a power supply, a lamp holder 2 which is connected with one end of the lamp body 1 and is used for emitting light, and a lamp tail 3 which is connected with the other end of the lamp body 1 and is provided with a control circuit; the lamp tail 3 includes: a seal tail cover 32 connected with the lamp body 1, and a tail cover assembly 31 arranged in the seal tail cover 32; the tail cover assembly 31 is provided with a cylindrical explosion-proof layer 311 matched with the sealing tail cover 32 in shape, and a partition plate 312 is arranged in the cylindrical explosion-proof layer 311 to divide the cylindrical space into a first explosion-proof cavity 313 and a second explosion-proof cavity 314. The interior of the tail cover can use different cavities according to the explosion-proof grade of the circuit device, thereby realizing double explosion-proof functions.
Specifically, on the basis that the sealing tail cover 32 provides a heavy isolation, the inner cylindrical explosion-proof layer 311 is isolated into two explosion-proof cavities which are not communicated with each other by the partition plate 312, for the circuit inside the lamp tail 3, corresponding distinguishing arrangement can be carried out according to the difference of explosion-proof grades or the difference of circuit power, once a gap is generated in the movable control, external combustible objects (gas or dust and the like) cannot directly enter a power supply area which is easy to generate sparks, and explosion is avoided.
Meanwhile, the structure of the partition plate 312 in the cylindrical explosion-proof layer 311 enables the cylindrical explosion-proof layer 311 to integrate two functions of external isolation and internal isolation, the problem that the effect of internal isolation is poor due to the fact that the partition plate 312 is additionally arranged on the basis of the cylindrical explosion-proof layer 311 is solved, the internal structure and the production flow of the portable lamp are simplified, and industrial implementation is facilitated.
As shown in fig. 2, in a preferred embodiment, the partition 312 is a three-dimensional partition 312 (e.g., a vertical partition plane is added on the basis of the original horizontally-arranged partition 312), so as to three-dimensionally partition the first and second explosion-proof cavities 314. The first explosion-proof chamber 313 is made to be in contact with the circuit device, so that the circuit device with higher explosion-proof requirement (level) can be arranged in the first explosion-proof chamber 313. Further improve the explosion-proof security of explosion-proof portable lamp.
As shown in fig. 5, in the present embodiment, the lamp body 1 is formed in a cylindrical shape for easy gripping by a user. The lamp tail 3 is also provided in a cylindrical shape so as to be fitted with the lamp body 1.
In other embodiments, the lamp body 1 and the lamp tail 3 of the portable lamp can also be arranged in a prism shape, and the cylindrical flame-proof layer 311 also correspondingly adopts a cylindrical structure in a prism shape, so as to be conveniently matched with and arranged in the sealing tail cover 32.
As shown in fig. 1 and fig. 2, in the present embodiment, the first explosion-proof cavity 313 is connected to the lamp body 1, and is provided with a driving circuit connected to the power supply and the inner light emitting device of the lamp head 2, respectively, for converting the electric energy output by the power supply into a driving current meeting the specification to drive the light emitting device. The driving circuit connected with the power supply and the light-emitting device is easy to generate electric sparks when large current passes through, and the explosion-proof level of the driving circuit is high. The explosion-proof structure is arranged in the first explosion-proof cavity 313 alone, so that the explosion-proof structure can be isolated from the outside of the portable lamp to the maximum extent, and the probability of explosion is reduced to the lowest point.
As shown in fig. 2 and 3, in the present embodiment, the partition 312 is provided with a cable inlet 315 communicating the first explosion-proof cavity 313 and the second explosion-proof cavity 314; the partition 312 is further provided with a charging interface 316, and the charging interface 316 penetrates through the sealing tail cover 32, so that the first explosion-proof cavity 313 is communicated with the outside of the lamp tail 3. The cable inlet 315 and the charging inlet 316 are sealed by gluing or by capping with a sealing cap when not in use. Specifically, the partition 312 and the cylindrical flameproof layer 311 are integrated to ensure the sealing property between the first flameproof cavity 313 and the second flameproof cavity 314.
As shown in fig. 2 and fig. 3, in the present embodiment, the second explosion-proof chamber 314 is provided with a control circuit for controlling the driving circuit, and the control circuit is connected to the driving circuit through the cable inlet 315. The control circuit generally adopts the voltage and current levels which are mutually lower, the probability of generating electric sparks is relatively lower, and therefore, the explosion-proof level is lower than that of the drive circuit. Meanwhile, the control circuit needs to control the control element in the control circuit because the control circuit relates to the interaction with the outside of the portable lamp, such as when an operator turns on or turns off or adjusts the brightness of the light emitting device, and the control element is arranged in the second explosion-proof cavity 314 and is isolated from the driving circuit to form the double explosion-proof effect. The double explosion suppression is beneficial to avoiding the reduction of the sealing performance of the shell of the portable lamp during operation, thereby influencing the sealing performance of the driving circuit.
As shown in fig. 4, in this embodiment, the control circuit is provided with a control key for converting an external operation into an electrical signal to control the driving circuit connected thereto, so as to turn on and off the driving circuit and adjust the brightness of the light emitting device. The sealing tail cover 32 is provided with a deformable unit 321 in an area corresponding to the control key, and the deformable unit 321 triggers the control key according to deformation caused by external force. The cover deformable unit 321 is made of rubber or silica gel and the like to achieve the technical effects of covering and transmission.
In a preferred embodiment, the deformable unit 321 is a through hole opened on the sealing tail cap 32 and an elastic member passing through the through hole. The periphery of the elastic piece is connected with the control key through sealing, and the body of the elastic piece is elastically deformed to transmit the operation action of an operator to the control key.
As shown in fig. 4, in the present embodiment, the control circuit is provided with an electricity quantity indicating light bar, and the sealing tail cover 32 is provided with a light-transmitting unit 322 on an area corresponding to the electricity quantity indicating light bar. The indication light bar can be formed by arranging a plurality of light-emitting devices, and can also be realized by adopting an integral LED light bar. For displaying the current capacity of the power supply. The light transmission unit 322 is made of a transparent material such as glass or film for easy covering.
As shown in fig. 3, in the present embodiment, after the cable is connected to the cable inlet 315 and the charging inlet 316, a sealing ring is disposed at a gap between the cable and the cable. The sealing device is used for ensuring the sealing performance between the first explosion-proof cavity and the second explosion-proof cavity. So that the two can be electrically connected and physically isolated. Meanwhile, the first explosion-proof cavity is prevented from being directly communicated with the outside.
In a preferred embodiment, the gap may be filled by gluing the cable inlet 315 and the charging interface 316 after the cable is connected. Convenient operation, and the leakproofness is better than the sealing washer.
In other embodiments, the sealing ring and the adhesive are used in combination to seal the gap between the cable inlet 315 and the charging interface 316 after the cable is connected.
As shown in fig. 1, in the present embodiment, the connection mode of the lamp body 1, the lamp cap 2 and the lamp tail 3 is a sealing connection. So as to ensure the integral sealing performance of the portable lamp shell.
As shown in fig. 1 and 5, in the present embodiment, a handle 11 is fixedly disposed on an outer wall of the lamp body 1; strap interfaces 112 are provided at both ends of the gripping portion of the handle 11. When the holding manner of holding the lamp body 1 is inconvenient for practical operation, the handle 11 may provide another holding manner to facilitate the use of the operator. Meanwhile, the strap interface 112 is arranged on the handle 11, so that the hand lamp cannot be vacated to hold in emergency, and the lamp can be carried on the body and can be taken conveniently at any time.
As shown in fig. 5, in the present embodiment, the heat dissipation ribs 21 are annularly disposed on the outer shell of the lamp cap 2, so as to increase the surface area of the lamp cap 2 and improve the heat dissipation efficiency. The lamp holder 2 is also facilitated to adopt a larger reflection cup and a light-emitting device with stronger illuminance, so that the heat dissipation amount can keep up with the heat productivity of the light-emitting device when the illumination range of the portable lamp is enlarged.
Compared with the prior art, the explosion-proof portable lamp provided by the invention has the advantages that the cylindrical explosion-proof layer 311 is divided into two mutually isolated explosion-proof cavities by the partition plate 312, so that equipment with different explosion-proof grades can be arranged in different areas for local isolation, and meanwhile, the first explosion-proof cavity and the second explosion-proof cavity are combined with the sealing tail cover 32 to form a double-isolation structure, so that the explosion-proof function of the explosion-proof portable lamp is further improved.
The above-mentioned embodiments are merely preferred examples of the present invention, and not intended to limit the present invention, and those skilled in the art can easily make various changes and modifications according to the main concept and spirit of the present invention, so that the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. An explosion-proof hand lamp comprising: the lamp comprises a lamp body provided with a power supply, a lamp holder which is connected with one end of the lamp body and used for emitting light, and a lamp tail which is connected with the other end of the lamp body and provided with a control circuit; it is characterized in that the lamp tail comprises: the tail cover assembly is arranged in the tail cover; the tail cover assembly is provided with a cylindrical explosion-proof layer matched with the sealing tail cover in shape, and a partition plate is arranged in the cylindrical explosion-proof layer to divide a cylindrical space into a first explosion-proof cavity and a second explosion-proof cavity;
the first explosion-proof cavity is connected with the lamp body and is provided with a driving circuit which is respectively connected with the power supply and the inner light-emitting device of the lamp holder;
the partition plate is provided with a cable lead-in port communicated with the first explosion-proof cavity and the second explosion-proof cavity; the partition plate is also provided with a charging interface which penetrates through the sealing tail cover to enable the first explosion-proof cavity to be communicated with the outside of the lamp tail;
the second explosion-proof cavity is provided with a control circuit for controlling the driving circuit, and the control circuit is connected with the driving circuit through the cable inlet; the explosion-proof grade of the driving circuit is higher than that of the control circuit.
2. The explosion-proof portable lamp as claimed in claim 1, wherein the control circuit is provided with a control key, the sealing tail cover is provided with a deformable unit in a region corresponding to the control key, and the deformable unit triggers the control key according to deformation caused by external force.
3. The explosion-proof portable lamp of claim 1, wherein a power indicator light bar is disposed on the control circuit, and the sealing tail cap is provided with a light-transmitting unit on a region corresponding to the power indicator light bar.
4. The explosion-proof portable lamp as claimed in claim 1, wherein the cable inlet and the charging port are provided with a sealing ring at a gap with the cable after the cable is connected.
5. The explosion-proof portable lamp as set forth in claim 1, wherein said lamp body is connected to said lamp head and said lamp tail in a sealed manner.
6. The explosion-proof portable lamp as claimed in claim 1, wherein a handle is fixedly provided on the outer wall of the lamp body; and strap connectors are arranged at two ends of the holding part of the handle.
7. An explosion proof hand lamp as set forth in claim 1, wherein said lamp head has heat dissipating ribs disposed on the outer shell of the lamp head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611187006.XA CN107366843B (en) | 2016-12-20 | 2016-12-20 | Explosion-proof portable lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611187006.XA CN107366843B (en) | 2016-12-20 | 2016-12-20 | Explosion-proof portable lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107366843A CN107366843A (en) | 2017-11-21 |
| CN107366843B true CN107366843B (en) | 2021-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611187006.XA Active CN107366843B (en) | 2016-12-20 | 2016-12-20 | Explosion-proof portable lamp |
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| CN (1) | CN107366843B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109958918A (en) * | 2017-12-25 | 2019-07-02 | 海洋王照明科技股份有限公司 | Tunnel lamp |
| CN108954072A (en) * | 2018-04-24 | 2018-12-07 | 浙江联品电子科技有限公司 | A kind of LED anti-explosion lamp of transmitter welding shop |
| RU2739972C1 (en) * | 2020-02-14 | 2020-12-30 | Производственная Коммерческая фирма "Экотон" (ООО "ПКФ ЭКОТОН") | Explosion-proof lantern |
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| CN107366843A (en) | 2017-11-21 |
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