CN113517597B - Explosion-proof charger - Google Patents
Explosion-proof charger Download PDFInfo
- Publication number
- CN113517597B CN113517597B CN202110348384.6A CN202110348384A CN113517597B CN 113517597 B CN113517597 B CN 113517597B CN 202110348384 A CN202110348384 A CN 202110348384A CN 113517597 B CN113517597 B CN 113517597B
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- Prior art keywords
- charging
- explosion
- proof
- connector
- charged
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- 238000007789 sealing Methods 0.000 claims abstract description 54
- 239000003292 glue Substances 0.000 claims abstract description 10
- 229920001971 elastomer Polymers 0.000 claims description 18
- 238000007906 compression Methods 0.000 claims description 4
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 3
- 230000004308 accommodation Effects 0.000 claims 2
- 238000004880 explosion Methods 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 21
- 238000012360 testing method Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 7
- 230000005611 electricity Effects 0.000 description 6
- 241000237983 Trochidae Species 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5213—Covers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/527—Flameproof cases
Abstract
The application is applicable to the technical field of oil mine charging equipment, and provides an explosion-proof charger which comprises a shell, a circuit control board and a plug assembly, wherein the shell is provided with an accommodating space, a charging connector and a mains supply connector; the circuit control board is sealed in the accommodating space in a glue filling mode and is respectively and electrically connected with the charging connector and the mains supply connector; at least two charging heads are arranged on the plug assembly, one charging head is used for being detachably and hermetically connected with the charging connector, and the other charging head is used for being electrically connected with equipment to be charged or a battery box to be charged. According to the anti-explosion charger provided by the application, the shell and the plug assembly are in a sealing design, so that the internal entering of combustible gas is avoided, the combustible gas reaches an anti-explosion level, and a mobile electrical product or a battery box is directly electrically connected with a charging head in an anti-explosion place for charging, so that the problem that the mobile electrical product in the prior art cannot be used for continuous operation for a long time due to the fact that the mobile electrical product cannot be rapidly powered in the anti-explosion place is solved.
Description
Technical Field
The application relates to the technical field of oil mine charging equipment, in particular to an explosion-proof charger.
Background
At present, mobile electrical products such as mobile lighting equipment and the like are widely applied to emergency lighting and the like in areas with explosive gas in enterprises such as petroleum exploitation, metallurgy, various damp and the like, however, the existing mobile electrical products are externally connected with a power supply in explosion-proof places, the power supply cannot be placed in the explosion-proof places, or the mobile electrical products are internally charged with electricity to supply power, after the electricity consumption of a power supply battery is finished, the mobile electrical products need to be charged in non-explosion-proof places, the mobile electrical products are installed and used after the electricity consumption of the power supply battery is finished, and then the mobile electrical products are installed and used after the electricity consumption of the explosion-proof battery box is finished, and if the explosion-proof battery box is used for charging in the non-explosion-proof places after the electricity consumption of the explosion-proof battery box is finished, the mobile electrical products are detached and then installed and used after the electricity consumption is finished. This results in frequent transport charging during use and thus does not allow continuous operation over a long period of time.
Disclosure of Invention
The embodiment of the application aims to provide an explosion-proof charger, which aims to solve the technical problem that a mobile electrical product cannot be continuously powered in an explosion-proof field and cannot be continuously operated for a long time in the prior art.
In order to achieve the above purpose, the application adopts the following technical scheme: there is provided an explosion-proof charger including:
the shell is internally provided with an accommodating space, a charging connector and a mains supply connector, and the mains supply connector is connected with the mains supply through a cable;
The circuit control board is sealed in the accommodating space in a glue filling mode and is respectively and electrically connected with the charging connector and the mains supply connector;
The plug assembly is provided with at least two charging heads, one of the charging heads is used for being detachably and hermetically connected with the charging connector, and the other charging head is used for being electrically connected with equipment to be charged or a battery box to be charged.
In some embodiments of the present application, a sleeve joint is circumferentially arranged along an outer wall of an end portion of the charging head, and a guide groove is formed between the sleeve joint and the outer wall of the charging head;
The outer wall of the charging connector is inserted along the guide groove so that the charging connector is spliced with the charging connector; or the outer wall of the plug of the equipment to be charged or the battery box to be charged is inserted along the guide groove, so that the charging connector is inserted into the equipment to be charged or the battery box to be charged.
In some embodiments of the present application, the plug assembly includes at least two sleeves with the same structure, one end of each sleeve is provided with the charging head, the other end of each sleeve is connected with the adjacent other sleeve through a wire, the wire is connected with the sleeve in a sealing manner, and a circuit board is arranged in each sleeve and is electrically connected with the charging head.
In some embodiments of the present application, the charging head includes a housing and a charging contact, the housing is a cavity with two open ends, the charging contact is sealed and fixed in the cavity, the sleeve is hermetically sleeved on the housing, and the charging contact is electrically connected with the circuit board.
In some embodiments of the application, a seal ring is supported between the sleeve and the housing, the seal ring for sealing the housing to the sleeve.
In some embodiments of the application, the explosion-proof charger further comprises an insulating cover connected to the housing and configured to cover the charging connector such that the charging connector is enclosed within the insulating cover.
In some embodiments of the present application, the insulating cover is provided with an anti-falling strip, one end of the anti-falling strip is fixedly connected with the insulating cover, and the other end of the anti-falling strip is fixedly connected with the shell.
In some embodiments of the application, a sealing rubber ring is provided in the insulating cover, and the sealing rubber ring can abut against the end of the charging connector.
In some embodiments of the application, the explosion-proof charger further comprises an end cap for detachable connection with the charging head, the end cap being wrapped around the charging head.
In some embodiments of the application, the end cap is connected to the outer wall of the charging head by a flexible connection.
In some embodiments of the present application, the housing includes a bottom case and an upper cover, the bottom case is recessed inward to form the accommodating space, the upper cover is provided on the bottom case, and a sealing member is supported between the bottom case and the upper cover, and is used for sealing the accommodating space.
The explosion-proof charger provided by the application has the beneficial effects that: compared with the prior art, the explosion-proof charger has the advantages that the circuit control board is arranged in the shell in a sealing manner, the charging connector and the commercial power connector are formed on the shell, at least two charging heads are arranged on the plug assembly, one of the charging heads is used for being detachably and hermetically connected with the charging connector, the other charging head is used for being electrically connected with equipment to be charged or a battery box to be charged, the shell and the plug assembly are of a sealing design, the inner parts of the shell and the plug assembly are prevented from entering combustible gas, the explosion-proof charger achieves an explosion-proof grade, the sealing type explosion-proof charger is called an nR type limited breathing explosion-proof charger, surrounding combustible gas can be prevented from entering the inner part of the explosion-proof charger, electric components in the explosion-proof charger cannot be contacted with the combustible gas, and then the ignition source of the surrounding combustible gas mixture cannot be formed, so that the explosion-proof charger can be used in an explosion-proof place, and the equipment to be charged, namely, a mobile electric appliance product can be directly connected with the charging heads for charging, or the charging battery box is directly electrically connected with the charging heads in the explosion-proof place, so that the mobile electric appliance cannot be powered in the explosion-proof place, the problem that the mobile electric appliance cannot be powered in the explosion-proof place is fast, and the explosion-proof charger cannot be continuously powered in the explosion-proof place, and the explosion-proof charger can be produced, and the explosion-proof charger can not be used for a long-proof operation, and the electric appliance can be produced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of an explosion-proof charger according to an embodiment of the present application;
FIG. 2 is a schematic diagram of an exploded view of a housing and plug assembly of an explosion-proof charger according to one embodiment of the present application;
FIG. 3 is a schematic view of an explosion-proof charger according to an embodiment of the present application;
FIG. 4 is a schematic cross-sectional view of the explosion-proof charger of FIG. 3 taken along the direction A-A;
Fig. 5 is an enlarged schematic view of the explosion-proof charger B part in fig. 4;
fig. 6 is an enlarged schematic view of the explosion-proof charger C section in fig. 4;
fig. 7 is a schematic structural view of a housing of an explosion-proof charger according to an embodiment of the present application;
FIG. 8 is a schematic cross-sectional view of the housing of FIG. 7 taken along the direction D-D;
fig. 9 is a schematic structural view of a plug assembly of an explosion-proof charger according to an embodiment of the present application;
FIG. 10 is a schematic cross-sectional view of the plug assembly of FIG. 9 taken along the direction E-E;
FIG. 11 is a schematic diagram of an explosion-proof charger according to an embodiment of the present application used in a device to be charged;
fig. 12 is a schematic view of an explosion-proof charger according to an embodiment of the present application, used in a battery case to be charged.
Reference numerals related to the above figures are as follows:
10-an explosion-proof charger;
1-a housing; 2-a circuit control board; a 3-plug assembly; 4-an insulating cover; 5-end caps; 6-double-component silica gel; 7-epoxy resin; 8-a cable;
11-accommodation space; 12-an upper cover; 13-bottom case; 14-a charging connector; 15-mains connection; 16-a seal; 17-washers;
31-a charging head; 32-sleeve joint; 33-a guide slot; 34-a sleeve; 35-a circuit board; 36-sealing ring; 37-an annular sealing ring; 38-conducting wires; 39-compression nut;
311-a housing; 312-charging contacts; 313-pressing ring;
41-sealing a rubber ring; 42-anti-falling strips;
51-flexible connection;
100-equipment to be charged;
200-battery box to be charged.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In order to explain the technical scheme of the application, the following is a detailed description with reference to the specific drawings and embodiments.
As shown in fig. 1 to 12, an embodiment of the present application provides an explosion-proof charger 10, which comprises a housing 1, a circuit control board 2 and a plug assembly 3, wherein an accommodating space 11 is arranged in the housing 1, a charging connector 14 and a mains connector 15 are arranged, and the mains connector 15 is connected with mains through a cable; the circuit control board 2 is sealed in the accommodating space 11 in a glue filling manner and is respectively and electrically connected with the charging connector 14 and the mains connection 15; at least two charging heads 31 are disposed on the plug assembly 3, one of the charging heads 31 is configured to be detachably and hermetically connected with the charging connector 14, and as shown in fig. 11 and 12, the other charging head 31 is configured to be electrically connected with the device to be charged 100 or the battery case to be charged 200.
According to the explosion-proof charger provided by the embodiment of the application, the circuit control board 2 is arranged in the shell 1 in a sealing way, the charging connector 14 and the mains connection 15 are formed on the shell 1, at least two charging heads 31 are arranged on the plug assembly 3, one of the charging heads 31 is used for being detachably and hermetically connected with the charging connector 14, the other charging head 31 is used for being electrically connected with the equipment to be charged 100 or the battery box to be charged 200, so that the shell 1 and the plug assembly 3 are of a sealing design, the inner parts of the two are prevented from entering combustible gas, the explosion-proof charger achieves an explosion-proof grade, the sealed explosion-proof charger is called an nR type limited breathing explosion-proof charger, surrounding combustible gas can be prevented from entering the inner parts of the shell, electric components in the explosion-proof charger cannot be contacted with the combustible gas, and then the surrounding combustible gas mixture can not be ignited, and thus the explosion-proof charger can be used in an explosion-proof place, the equipment to be charged 100, namely a mobile electric appliance product can be directly connected with the charging head 31 for charging, or the battery box is directly connected with the charging head 31 in the explosion-proof place for charging, the inside the combustible gas can not be used in the explosion-proof place, the explosion-proof place can not be used in the explosion-proof place, and the explosion-proof electric appliance can not be quickly powered by the explosion-proof charger, and the application can not realize the continuous operation, and the explosion-proof charger can not realize the quick operation, and the quick operation can not be used in the explosion-proof operation, and the continuous operation, and the application.
It should be noted that, the casing 1 may be made of a metal material, the casing 1 may be provided with a product nameplate, the circuit control board 2 is filled and sealed by glue, the connection between the mains connection 15 and the casing 1 is sealed by sealant, specifically, as shown in fig. 8, the cable 8 used by the mains is fastened and sealed on the mains connection 15 by the compression nut 39, the gasket 17 and the sealing ring 36, so as to avoid the entry of combustible gas, the charging head 31 may be two male contact pins or two female contact pins, the contact pins are electrically connected with the circuit control board 2 by cables, and the mobile electrical product may be 6003 devices.
As shown in fig. 8, the glue filling of the circuit control board 2 is performed by adopting 10:1 double-component silica gel 6 glue sealing treatment, the joint of the circuit control board 2 and the cable 8 of the charging connector 14 is performed by adopting 2:1 epoxy resin 7 component glue sealing treatment, and during production, pressure test and gas detection, such as pressure test, can be performed on an explosion-proof charger, and a sample is vacuumized in a constant temperature state, so that the internal pressure of the sample is lower than 3kPa of atmospheric pressure; then, the vacuum pump was turned off to gradually raise the internal pressure of the explosion-proof charger to 1.5kPa below the atmospheric pressure, during which time it should not be less than 3 minutes. Testing of combustible gases, in which the test person should place the device under test in a combustible gas, air mixture (low concentration side with concentration in the explosion limit range) under laboratory environmental conditions, the test is carried out according to the "temperature test" method, and at the end of the test, the presence of the test gas should not be detected in the "nR" type explosion-proof electrical device.
In some embodiments of the present application, optionally, as shown in fig. 4 to 6 and 10, a socket 32 is disposed along the circumference of the outer wall of the end of the charging head 31, and a guide groove 33 is formed between the socket 32 and the outer wall of the charging head 31;
The outer wall of the charging connector 14 is inserted along the guide groove 33, so that the charging connector 14 is inserted into the charging head 31; or the outer wall of the plug of the device to be charged 100 or the battery case to be charged 200 is inserted along the guide groove 33, so that the charging connector 14 is plugged into the device to be charged 100 or the battery case to be charged 200.
In this embodiment, a guide groove 33 is formed between the inner wall of the socket 32 and the outer wall of the charging head 31, and the mating plug of the to-be-charged device 100 and the to-be-charged battery case 200 is mated with the guide groove 33, so that when the charging head 31 is connected with the to-be-charged device 100 or the to-be-charged battery case 200 is connected, the charging head 31 and the mating plug of the to-be-charged device 100 and the to-be-charged battery case 200 are inserted along the guide groove 33, the guide groove 33 plays a guiding role, and in addition, an annular sealing ring 37 is arranged at a position where the inside of the guide groove 33 abuts against the plug or the charging connector 14, so that the sealing performance is better when the charging connector 14 and the mating plug of the to-be-charged device 100 and the to-be-charged battery case 200 are connected with the charging head 31, and thus the 'nR' -type explosion-proof level is more easily achieved.
In some embodiments of the present application, as shown in fig. 1, 2, 3, 9 and 10, the plug assembly 3 includes at least two sleeves 34 having the same structure, one end of each sleeve 34 is provided with the charging head 31, the other end of each sleeve 34 is connected to the adjacent other sleeve 34 through a wire 38, the wire 38 is connected to the sleeve 34 in a sealing manner, and a circuit board 35 is disposed in each sleeve 34, and the circuit board 35 is electrically connected to the charging head 31.
In this embodiment, the plug assembly 3 may be composed of at least two sleeves 34 with the same structure, where one end of each sleeve 34 is installed with a charging head 31, the other end is connected with another adjacent sleeve 34 through a wire 38, and the connection between the wire 38 and the sleeve 34 is ensured to be sealed, the connection between the wire 38 and the sleeve 34 can be locked by a compression nut 39 and a sealing rubber ring 41, so as to avoid the entry of combustible gas, and the circuit board 35 can be fixed in the sleeve 34 by screws and sealed by glue filling, so as to avoid electric spark, where the circuit board 35 is electrically connected with the wire 38 and the charging head 31 respectively, so as to realize the conduction of a circuit, and facilitate the charging of the charging head 31 to charge the device 100 to be charged and the battery box 200 to be charged.
In the above embodiments of the present application, as further shown in fig. 6 and 10, the charging head 31 includes a housing 311 and a charging contact 312, the housing 311 is a cavity with two open ends, the charging contact 312 is sealed and fixed in the cavity, the sleeve 34 is hermetically sleeved on the housing 311, and the charging contact 312 is electrically connected with the circuit board 35.
In this embodiment, the charging contact 312 is installed in the cavity of the housing 311, and meanwhile, the charging contact 312 can be pressed on the cavity by the pressing ring 313, so as to ensure the tightness between the charging contact 312 and the cavity of the housing 311, and meanwhile, the charging contact 312 is electrically connected with the circuit board 35, the sleeve 34 is sleeved on the outer wall of the housing 311, so as to ensure the tightness between the sleeve 34 and the housing 311.
In the above embodiment of the present application, as shown in fig. 6 and 10, in order to further ensure the sealing effect between the casing 311 and the sleeve 34, a sealing ring 36 is supported between the sleeve 34 and the casing 311, the sealing ring 36 is used for sealing the casing 311 and the sleeve 34, the sealing ring 36 may be an O-ring, and is made of a nitrile rubber material and is fixedly installed in the circumferential direction of the casing 311, so that after the casing 311 is sleeved on the sleeve 34, the sealing ring 36 forms a sealing effect between the sleeve 34 and the casing 311.
In some embodiments of the present application, as shown in fig. 1,2,3, 7 and 8, the explosion-proof charger further includes an insulating cover 4, and the insulating cover 4 is connected to the housing 1 and is used to cover the charging connector 14, so that the charging connector 14 is wrapped in the insulating cover 4.
In this embodiment, the insulating cover 4 may be connected to the housing 1 through the anti-falling strip 42 made of soft rubber material, specifically, one end of the anti-falling strip 42 made of soft rubber material is connected to the housing 1 through a screw, and the other end is integrally formed with or connected to the insulating cover 4 through a screw, so as to avoid the insulating cover 4 from being lost when the insulating cover 4 is removed from the charging connector 14, and meanwhile, in a non-charging state, the insulating cover 4 may cover the charging connector 14, so as to protect the charging connector 14 from leakage, and the insulating cover 4 may be made of rubber material, so that it has elasticity, and is convenient for sealing and dismounting with the charging connector 14.
In some embodiments of the present application, as shown in fig. 8, a sealing rubber ring 41 is disposed in the insulating cover 4, and the sealing rubber ring 41 can abut against an end of the charging connector 14.
In this embodiment, an annular sealing rubber ring 41 is disposed on the inner top wall in the insulating cover 4, and when the inner cover of the insulating cover 4 is disposed on the charging connector 14, the sealing rubber ring 41 abuts against the end of the charging connector 14, increasing the sealing effect between the sealing rubber ring and the inside of the insulating cover 4.
In some embodiments of the present application, as shown in fig. 1,2, 3, 9 and 10, the explosion-proof charger further includes an end cap 5 for detachable connection with the charging head 31, and the end cap 5 may be wrapped around the charging head 31.
In this embodiment, the end cover 5 may be made of a rubber material, when the charging head 31 is not used, the charging head 31 is wrapped by the end cover 5, specifically, a guide groove 33 is formed between the outer side of the charging head 31 and the inner wall of the socket joint 32, an annular sealing ring is installed in the guide groove 33, the cavity wall of the end cover 5 is inserted into the guide groove 33 and abuts against the annular sealing ring, the end cover 5 is connected with the charging head 31, so that the disassembly is convenient, and the charging head 31 is not easy to leak when the charging head is not used.
In some embodiments of the present application, as shown in fig. 9 and 10, the end cap 5 is connected to the outer wall of the charging head 31 by a flexible connection 51.
In this embodiment, the flexible connection member 51 may be a rectangular anti-falling bar 42 made of rubber material, so that the rectangular anti-falling bar 42 has a soft shape, one end of the rectangular anti-falling bar 42 is fixed on the sleeve 34 by a screw, and the other end is integrally formed with the end cover 5 or rotationally connected, so that when the end cover 5 is taken off from the charging head 31, the situation that the end cover 5 is improperly placed and lost is avoided, and the reliability of the product is improved.
In some embodiments of the present application, as shown in fig. 1,2, 4, 5, 7 and 8, the housing 1 includes a bottom case 13 and an upper cover 12, the bottom case 13 is recessed inward to form the accommodating space 11, the upper cover 12 is covered on the bottom case 13, and a sealing member 16 is supported between the bottom case 13 and the upper cover 12, and the sealing member 16 is used for sealing the accommodating space 11.
In this embodiment, the housing 1 may be composed of the bottom shell 13 and the top shell 12, meanwhile, the top shell 12 and the bottom shell 13 may be made of metal materials, the bottom shell 13 is formed with a containing space 11, which is convenient for installing electrical components such as the circuit control board 2, etc., meanwhile, a sealing member 16 is formed at the bottom of the top shell 12 in the circumferential direction, when the top shell 12 is connected with the bottom shell 13, the edge end of the bottom shell 13 abuts against the sealing member 16, thus, the tightness of the containing space 11 may be ensured, the entry of combustible gas is avoided, the grade that can be used in an explosion-proof place is reached, the sealing member 16 may be an elastic sealing ring made of a same sense rubber material, and the top shell 12 and the bottom shell 13 may be fixed by welding or screw connection.
In summary, compared with the prior art, the explosion-proof charger provided by the application has the advantages that the circuit control board is arranged in the shell in a sealing manner, the charging connector and the mains connection connector are formed on the shell, at least two charging heads are arranged on the plug assembly, one of the charging heads is used for being detachably and hermetically connected with the charging connector, the other charging head is used for being electrically connected with equipment to be charged or a battery box to be charged, so that the shell and the plug assembly are both in a sealing design, the inside of the shell and the plug assembly are prevented from entering combustible gas, the explosion-proof charger achieves an explosion-proof grade, the sealed explosion-proof charger is called as an nR type limited breathing explosion-proof charger, surrounding combustible gas can be prevented from entering the inside of the shell, and electric components in the explosion-proof charger can not be contacted with the combustible gas, and then the surrounding combustible gas mixture can not be used in an explosion-proof place, so that the explosion-proof charger can be used, and the equipment to be charged can be directly connected with the charging heads for charging, or the battery box can be directly connected with the charging heads in the explosion-proof place for charging, so that the mobile electrical equipment in the prior art can not be used for charging, the mobile electrical equipment can not be quickly powered by the mobile electrical equipment, and the explosion-proof equipment in the explosion-proof place, and the explosion-proof electrical equipment can not be used in the explosion-proof place, and the explosion-proof place can not be continuously powered for a continuous operation, and can be realized, and the explosion-proof operation can be rapidly and a power-proof place, and can be realized, and a power-proof can be prevented.
The above description is illustrative of the various embodiments of the application and is not intended to be limiting, but is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the application.
Claims (9)
1. An explosion-proof charger, comprising:
The shell is internally provided with an accommodating space, a charging connector and a mains supply connector, and the mains supply connector is connected with the mains supply through a cable;
The circuit control board is sealed in the accommodating space in a glue filling mode and is respectively and electrically connected with the charging connector and the mains supply connector;
The plug assembly is provided with at least two charging heads, one of the charging heads is used for being detachably and hermetically connected with the charging connector, the other charging head is used for being electrically connected with equipment to be charged or a battery box to be charged, and meanwhile the two charging heads are hermetically connected; the plug assembly comprises at least two sleeves with the same structure, one end of each sleeve is provided with the charging head, the other end of each sleeve is connected with the other adjacent sleeve through a wire, the wires are connected with the sleeves in a sealing mode through compression nuts and sealing rubber rings, a circuit board is arranged in each sleeve, the circuit board is sealed in a glue filling mode, and the circuit board is electrically connected with the charging heads;
The explosion-proof charger is an nR type respiration limiting explosion-proof charger which can prevent surrounding combustible gas from entering the inside of the explosion-proof charger.
2. The explosion-proof charger according to claim 1, wherein a socket joint is circumferentially arranged along an outer wall of an end portion of the charging head, and a guide groove is formed between the socket joint and the outer wall of the charging head;
The outer wall of the charging connector is inserted along the guide groove so that the charging connector is spliced with the charging connector; or the outer wall of the plug of the equipment to be charged or the battery box to be charged is inserted along the guide groove, so that the charging connector is inserted into the equipment to be charged or the battery box to be charged.
3. The explosion-proof charger of claim 1, wherein the charging head comprises a housing and a charging contact, the housing is a cavity with two open ends, the charging contact is sealed and fixed in the cavity, the sleeve is hermetically sleeved on the housing, and the charging contact is electrically connected with the circuit board.
4. An explosion-proof charger as defined in claim 3, wherein a seal ring is supported between said sleeve and said housing, said seal ring for sealing said housing and said sleeve.
5. The explosion-proof charger of claim 1, further comprising an insulating cover connected to said housing and adapted to cover said charging connector such that said charging connector is encased within said insulating cover.
6. The explosion-proof charger of claim 5, wherein a sealing rubber ring is provided in the insulating cover, and the sealing rubber ring can abut against the end of the charging connector.
7. The explosion-proof charger of claim 1, further comprising an end cap for detachable connection with said charging head, said end cap being wrapped around said charging head.
8. The explosion-proof charger of claim 7 wherein said end cap is connected to an outer wall of said charging head by a flexible connection.
9. The explosion-proof charger according to any one of claims 1 to 8, wherein the housing includes a bottom case and an upper cover, the bottom case is recessed inward to form the accommodation space, the upper cover is provided on the bottom case, and a sealing member for sealing the accommodation space is supported between the bottom case and the upper cover.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110348384.6A CN113517597B (en) | 2021-03-31 | 2021-03-31 | Explosion-proof charger |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110348384.6A CN113517597B (en) | 2021-03-31 | 2021-03-31 | Explosion-proof charger |
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| CN113517597A CN113517597A (en) | 2021-10-19 |
| CN113517597B true CN113517597B (en) | 2024-04-19 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207517975U (en) * | 2017-11-10 | 2018-06-19 | 九阳股份有限公司 | A kind of water purifier power supply adaptor |
| CN212367742U (en) * | 2020-09-07 | 2021-01-15 | 佛山市顺德区冠宇达电源有限公司 | Waterproof power supply structure easy to assemble |
| CN212695376U (en) * | 2020-08-12 | 2021-03-12 | 襄阳航力机电技术发展有限公司 | Prevent cable subassembly that soaks |
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2021
- 2021-03-31 CN CN202110348384.6A patent/CN113517597B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207517975U (en) * | 2017-11-10 | 2018-06-19 | 九阳股份有限公司 | A kind of water purifier power supply adaptor |
| CN212695376U (en) * | 2020-08-12 | 2021-03-12 | 襄阳航力机电技术发展有限公司 | Prevent cable subassembly that soaks |
| CN212367742U (en) * | 2020-09-07 | 2021-01-15 | 佛山市顺德区冠宇达电源有限公司 | Waterproof power supply structure easy to assemble |
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| CN113517597A (en) | 2021-10-19 |
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