CN113690664A - Plug, socket, plug device, charger, battery pack and electric vehicle - Google Patents
Plug, socket, plug device, charger, battery pack and electric vehicle Download PDFInfo
- Publication number
- CN113690664A CN113690664A CN202111027030.8A CN202111027030A CN113690664A CN 113690664 A CN113690664 A CN 113690664A CN 202111027030 A CN202111027030 A CN 202111027030A CN 113690664 A CN113690664 A CN 113690664A
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- Prior art keywords
- plug
- socket
- receptacle
- pins
- bosses
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- 229910052751 metal Inorganic materials 0.000 claims description 27
- 238000003780 insertion Methods 0.000 claims description 15
- 230000037431 insertion Effects 0.000 claims description 15
- 206010014357 Electric shock Diseases 0.000 abstract description 17
- 238000004891 communication Methods 0.000 description 47
- 238000000034 method Methods 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 7
- 229910052802 copper Inorganic materials 0.000 description 7
- 239000010949 copper Substances 0.000 description 7
- 238000001746 injection moulding Methods 0.000 description 6
- 230000013011 mating Effects 0.000 description 5
- 229910001369 Brass Inorganic materials 0.000 description 4
- 239000004734 Polyphenylene sulfide Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 239000010951 brass Substances 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- -1 polybutylene terephthalate Polymers 0.000 description 4
- 229920001707 polybutylene terephthalate Polymers 0.000 description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 description 4
- 239000005020 polyethylene terephthalate Substances 0.000 description 4
- 229920000069 polyphenylene sulfide Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000000306 component Substances 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910052987 metal hydride Inorganic materials 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Images
Classifications
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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
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
-
- 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
- H01R13/02—Contact members
-
- 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
- H01R13/44—Means for preventing access to live contacts
Landscapes
- Connector Housings Or Holding Contact Members (AREA)
Abstract
The invention relates to a plug, a socket, a plugging device, a charger, a battery pack and an electric vehicle. The plug has a pin that can form either the positive or negative pole and a socket that can form the other of the positive or negative pole. The socket has a pin that can form either a positive or negative pole and a socket that can form the other of the positive or negative pole. The plug device comprises a plug and pins, wherein the pins of the plug are insertable into the sockets of the socket and the pins of the socket are insertable into the sockets of the plug, such that when the plug is plugged to the socket, electrical connections can be formed between the pins of the plug and the sockets of the socket and between the pins of the socket and the sockets of the plug, respectively. When the charger with the plug is used for charging the battery pack or the electric vehicle with the socket, the risk of electric shock accidents of users can be effectively avoided or reduced.
Description
Technical Field
The invention relates to the technical field of charging, in particular to a plug, a socket, a plugging device, a charger, a battery pack and an electric vehicle.
Background
An electric vehicle, also called an electric drive vehicle or an electric drive vehicle, is a vehicle that uses a storage battery (or called a rechargeable battery) as a main energy source and converts electric energy into mechanical energy through a controller, a motor and other components. Electric vehicles can be classified into electric unicycles, electric bicycles, electric tricycles, electric quadricycles, and the like according to the number of tires. The electric vehicle has the advantages of energy conservation, environmental protection, flexibility, portability, economy, practicability and the like, so that the electric vehicle is favored by more and more users.
The voltage of the vehicle-mounted battery varies depending on the type of the electric vehicle, and is, for example, 36V, 48V, 60V, or the like. The storage battery is a core component of the electric vehicle, can be recycled by utilizing reversibility of chemical reaction, and the cycle frequency can reach thousands of times to tens of thousands of times. Compared with the traditional dry battery, the storage battery has obvious comparative advantages. The storage battery comprises various types such as a lead-acid battery, a lithium ion battery, a nickel-metal hydride battery and the like. Among them, lead-acid batteries have become the most common vehicle-mounted storage batteries in electric vehicles because of their advantages such as low price, abundant material sources, mature manufacturing process, etc.
In practice, a charger is generally used to charge a battery of an electric vehicle. The charger generally includes an input terminal (or called power plug), an adapter, and an output terminal (or called battery plug), which are connected in series in sequence through a power cord. The input may be connected to an ac grid (typically 220V). The adapter is internally provided with a transformer, a fuse and other components so as to convert the high-voltage alternating current into low-voltage direct current (the rated voltage is 48V and generally varies from 42V to 57V) through voltage limiting, current limiting and other processes. The output end is connected with a power interface of the storage battery so as to charge the storage battery.
In order to make the output terminal of the charger and the power interface of the storage battery form an effective electrical connection, 2-3 protruding metal pins are usually arranged on the output terminal of the charger or the power interface of the storage battery in the prior art. When the battery of the electric vehicle is charged using the charger, the user may touch the protruding metal pins due to improper operation, and particularly, the risk of touching by special people such as the elderly and children is greater. In the case of power-on, a part of a human body (e.g., a finger) where a user contacts the plurality of metal pins becomes a part of the power-on loop. Because the length of the part is shorter and the corresponding resistance is also smaller, the current is larger when the part is electrified, and the electric shock accident is easy to cause and the personal property loss is easily caused.
Accordingly, there is a need in the art for a new solution to the above problems.
Disclosure of Invention
In order to solve the above problems in the prior art, that is, to solve the technical problem in the prior art that an electric shock accident is easily caused in the charging process, the invention provides a plug. The plug has a pin that can form either the positive or negative pole and a socket that can form the other of the positive or negative pole.
It will be appreciated by those skilled in the art that the plug of the present invention has a pin which can form either the positive or negative pole and a socket which can form the other of the positive or negative pole, such that the plug of the present invention has a co-female configuration, i.e. the pin and socket are in the same component. Through the arrangement, the risk of electric shock accidents caused by the fact that a user touches the pins to form an electrified loop in the using process can be effectively avoided. In addition, even if a user accidentally touches the pins of the plug of the invention, the user is not affected or damaged. The reason for this is that when a user touches the pins of the plug, the entire human body acts as a wire, and the human body contacts the ground to form a power-on loop under the power-on condition. Compared with the situation that a plurality of pins are touched to form an electrifying loop, the resistance value of the whole human body and the ground is much larger than that of a part of the human body which is in contact with the plurality of pins, and the current value is extremely small, so that the plug can effectively avoid or reduce the risk of electric shock accidents of a user.
The invention provides a socket, aiming at solving the technical problem that an electric shock accident is easy to happen in the charging process in the prior art. The socket has a pin that can form either the positive or negative pole and a socket that can form the other of the positive or negative pole.
It will be appreciated by those skilled in the art that having a pin that can form either a positive or negative pole and a socket that can form the other of the positive or negative pole in the socket of the present invention allows the socket of the present invention to also have a male-female co-seating configuration, i.e., the pin and socket are in the same piece. Through the arrangement, the risk of electric shock accidents caused by the fact that a user touches the pins to form an electrified loop in the using process can be effectively avoided. In addition, even if the user accidentally touches the pins of the socket, the socket does not affect or damage the user.
The invention provides a plug-in device, aiming at solving the technical problem that an electric shock accident is easy to happen in the charging process in the prior art. The plug device comprises the plug described above and the socket described above, wherein the pins of the plug are insertable into the sockets of the socket and the pins of the socket are insertable into the sockets of the plug, so that when the plug is plugged into the socket, electrical connections can be respectively formed between the pins of the plug and the sockets of the socket and between the pins of the socket and the sockets of the plug.
As can be understood by those skilled in the art, in the plug-in device of the present invention, the plug and the socket are configured to be a male-female structure, so that when a user uses the plug-in device of the present invention, the situation of electric shock caused by the formation of a power-on loop due to the simultaneous touching of the positive and negative pins can be effectively avoided, and the safety can be improved. In addition, the plug and the socket are configured into a structure with a male socket and a female socket which are matched with each other, so that the misplugging can be effectively avoided, the circuit damage caused by the connection of the anode and the cathode of the circuit can be prevented, and the safety is further improved.
In a preferred embodiment of the above plug device, a plug metal connecting piece is provided in the insertion hole of the plug, and a socket metal connecting piece is provided in the insertion hole of the socket, so that when the plug is plugged into the socket, the pins of the plug can contact with the socket metal connecting piece, and the pins of the socket can contact with the plug metal connecting piece. Through the arrangement, the electric connection between the pins of the plug and the jacks of the socket and between the pins of the socket and the jacks of the plug can be conveniently formed.
In the above-described preferred embodiment of the plug device, the pins of the plug are arranged to extend perpendicularly outward from the plug body of the plug, the holes of the plug are arranged to extend perpendicularly inward from the plug body, and the pins of the socket are arranged to extend perpendicularly outward from the socket body of the socket, and the holes of the socket are arranged to extend perpendicularly inward from the socket body. Through the arrangement, the plug and the socket can be conveniently plugged together to form electric connection, and the structure of the plug and the socket is simpler and is easy to process and manufacture.
In the above-described preferred aspect of the plug device, the pins of the plug are arranged to extend perpendicularly outward from the plug body of the plug, and plug bosses spaced apart from and parallel to the pins of the plug are formed on the plug body, the insertion holes of the plug are arranged in the plug bosses, and the pins of the receptacle are arranged to extend perpendicularly outward from the receptacle body of the receptacle, and receptacle bosses spaced apart from and parallel to the pins of the receptacle are formed on the receptacle body, and the insertion holes of the receptacle are arranged in the receptacle bosses. Through foretell setting, can make the structure of plug and socket more regular to atress when the plug is pegged graft to the socket is more even, in order to obtain stable and firm connection.
In a preferred embodiment of the above plug device, the plug body is formed with plug circumferential walls surrounding the plug and the plug boss to define a plug slot capable of receiving the socket boss, and the socket body is formed with plug circumferential walls surrounding the socket and the socket boss to define a socket slot capable of receiving the plug boss, so that when the plug is plugged into the socket, the plug circumferential walls can be plugged into the socket slot. The arrangement of the plug circumferential wall and the socket circumferential wall can not only further reduce the possibility that a user touches the pins of the plug and the pins of the socket, but also play a role in protection and prolong the service life of the plug and the socket. In addition, the plug circumferential wall is configured to be insertable into the socket slot such that a contact area between the plug and the socket is increased to form a stable and secure connection.
In a preferred embodiment of the above-mentioned plugging device, the plug is further provided with at least one communication pin, and the socket is provided with a communication jack capable of receiving the at least one communication pin. By arranging the communication pins and the communication jacks which are matched with each other, parameters (such as current, voltage, temperature and the like) of the circuit can be conveniently acquired, so that intelligent control is realized.
In the above-described preferred embodiment of the plug device, the plug guide is formed at the tip of the pin of the plug, and the socket guide is formed at the tip of the pin of the socket. The arrangement of the plug guide part and the socket guide part can make the plug-in fit between the plug and the socket more convenient.
In order to solve the technical problem that an electric shock accident is easy to happen in the charging process in the prior art, the invention further provides a charger. The charger includes the plug described above. When the charger is used for charging, the risk of electric shock accidents of users can be effectively avoided or reduced.
In order to solve the technical problem that an electric shock accident is easy to happen in the charging process in the prior art, the invention also provides a battery pack. The battery pack includes the receptacle described above. By using the socket, the risk of electric shock accidents of users can be effectively avoided or reduced when the battery pack is charged.
In order to solve the technical problem that an electric shock accident is easy to happen in the charging process in the prior art, the invention further provides an electric vehicle. The electric vehicle includes the charger described above and the battery pack described above. When the electric vehicle is charged by using the charger, the risk of electric shock accidents of users can be effectively avoided or reduced.
Drawings
Preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:
FIG. 1 is a schematic structural view of a first embodiment of a plug of the present invention;
FIG. 2 is a schematic structural view of a first embodiment of the receptacle of the present invention;
FIG. 3 is a schematic structural view of a second embodiment of the plug of the present invention;
FIG. 4 is a schematic structural view of a second embodiment of the receptacle of the present invention;
FIG. 5 is a schematic structural view of a third embodiment of a plug of the present invention;
fig. 6 is a schematic structural view of a third embodiment of the socket of the present invention.
List of reference numerals:
10. a plug; 11. a plug body; 111. a first end face; 12. a pin of the plug; 121. a plug guide portion; 13. a jack of the plug; 14. a plug boss; 15. a plug circumferential wall; 16. a plug slot; 17. a communication pin; 17a, a first communication pin; 17b, a second communication pin; 18. a first polarity flag; 20. a socket; 21. a socket body; 211. a second end face; 22. a pin of the socket; 221. a socket guide portion; 23. a jack of the socket; 24. a socket boss; 25. a socket peripheral wall; 26. a socket slot; 27. a communication jack; 27a, a first communication jack; 27b, a second communication jack; 28. a second polarity mark; 29a, a first hanging lug; 291a, a first mounting hole; 29b, a second suspension loop; 291b, and a second mounting hole.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either directly or indirectly through intervening media, or through the communication between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In order to solve the technical problem that an electric shock accident is easy to happen in the charging process in the prior art, the invention provides a plug 10. The plug 10 has a pin that can form either a positive or negative pole and a socket that can form the other of the positive or negative pole. The present invention also provides a socket 20 having a pin that can form either a positive or negative pole and a socket that can form the other of the positive or negative pole. The invention also provides a plug-in device. The plug device comprises: a plug 10 and a socket 20, wherein the pins 12 of the plug are insertable into the sockets 23 of the socket and the pins 22 of the socket are insertable into the sockets 13 of the plug, such that when the plug 10 is plugged to the socket 20, electrical connections can be made between the pins 12 of the plug and the sockets 23 of the socket and between the pins 22 of the socket and the sockets 13 of the plug, respectively.
Fig. 1 is a schematic structural view of a first embodiment of the plug of the present invention. In one or more embodiments, as shown in fig. 1, a plug 10 of the present invention has a plug body 11 and a plug wire (not shown) connected to the plug body 11. In one or more embodiments, the plug body 11 is formed by an injection molding process using a suitable resin material to reduce manufacturing costs. The resin material includes, but is not limited to, PBT (polybutylene terephthalate), PET (polyethylene terephthalate), PA (polyamide), PPS (polyphenylene sulfide), and the like. Alternatively, the plug body 11 may be made of ceramic or other suitable insulating material. In one or more embodiments, as shown in fig. 1, the plug body 11 has an upper portion that is generally trapezoidal and a lower portion that is generally rectangular, based on the orientation shown in fig. 1. This configuration of different top and bottom shapes helps to identify the orientation of the plug 10 that matches the receptacle 20 when the plug 10 is to be plugged into the corresponding receptacle 20, thereby allowing for a more rapid and accurate plugging of the plug 10 into the mating receptacle 20. Based on the orientation shown in fig. 1, the pins 12 of the plug extending outward perpendicularly to the first end surface 111 are formed on the first end surface 111 of the plug body 11 away from the paper surface. In one or more embodiments, the prong 12 of the plug is configured to connect to a plug wire to form a positive pole. Alternatively, the pin 12 of the plug may be configured as a negative pole. The pin 12 of the plug can be made of materials such as brass, red copper or copper galvanization, so as to obtain better conductivity and corrosion resistance. In one or more embodiments, the pins 12 of the plug have a generally rectangular cross-section. Alternatively, the pins 12 of the plug may be configured to have a circular, oval, or other suitable cross-section. In one or more embodiments, a plug guide 121 is also formed at the end of the pin 12 of the plug. Based on the orientation shown in fig. 1, the plug guide 121 is configured to form a predetermined angle with the end surface of the distal end of the pin 12 of the plug to form a substantially V-shape, i.e., the cross section of the distal end of the pin 12 of the plug is gradually reduced toward the end surface of the distal end, so that the pin 12 of the plug can be more easily inserted into a mating receptacle (e.g., the receptacle 23 of the receptacle). The predetermined angle may be 45 °, or other suitable angle greater or less than 45 °.
With continued reference to fig. 1, and based on the orientation shown in fig. 1, a plug receptacle 13 is also formed in the plug body 11 extending perpendicularly from the first end face 111 into the plug body 11. Based on the orientation shown in fig. 1, the receptacle 13 of the plug and the pin 12 of the plug are arranged to be spaced apart from each other in the horizontal direction, and the receptacle 13 of the plug is located on the right side of the pin 12 of the plug. Alternatively, the receptacle 13 of the plug may be located to the left of the pin 12 of the plug. Further, the pins 12 of the plug and the insertion holes 13 of the plug may be arranged to be spaced apart from each other in the vertical direction. In one or more embodiments, the receptacle 13 of the plug has a generally rectangular cross-section. Alternatively, the receptacle 13 of the plug may also be configured to have a circular, oval or other suitably shaped cross-section. In one or more embodiments, plug metal tabs (not shown) are provided within the receptacle 13 of the plug. In one or more embodiments, the plug metal tabs are configured to connect with a plug wire to form a negative pole. Alternatively, the plug metal lug can also be provided as positive pole. The plug metal connecting sheet can be made of materials such as brass, red copper or copper galvanization, and the like, so that better conductivity and corrosion resistance can be obtained.
Fig. 2 is a schematic structural diagram of a first embodiment of the socket of the present invention. In one or more embodiments, as shown in FIG. 2, the receptacle 20 has a receptacle body 21 and receptacle wires (not shown) connected to the receptacle body 21. In one or more implementations, the socket body 21 is formed by an injection molding process using a suitable resin material to reduce manufacturing costs. The resin material includes, but is not limited to, PBT (polybutylene terephthalate), PET (polyethylene terephthalate), PA (polyamide), PPS (polyphenylene sulfide), and the like. Alternatively, the socket body 21 may be made of ceramic or other suitable insulating material. Based on the orientation shown in fig. 2, the pins 22 of the socket, which extend outward perpendicular to the second end face 211, are formed on the second end face 211 of the socket body 21, which is away from the paper surface. In one or more embodiments, the prongs 22 of the receptacle are configured to connect to a receptacle cord to form a negative pole so that when the prongs 22 of the receptacle are plugged into the receptacle 13 of the plug, they can contact the plug metal tabs to form an electrical connection. Alternatively, the pins 22 of the receptacle may be configured as positive, so long as they match the polarity of the metallic tabs of the plug. The pins 22 of the socket can be made of brass, red copper, or copper-plated zinc to obtain better conductivity and corrosion resistance. In one or more embodiments, the prongs 22 of the receptacle have a generally rectangular cross-section such that the prongs 22 of the receptacle can mate with the receptacles 13 of the plug to facilitate plugging into the receptacles 13 of the plug. Alternatively, the prongs 22 of the receptacle may be configured to have a circular, oval or other suitable cross-section so long as they are capable of mating with the receptacles 13 of the plug. In one or more embodiments, socket guides 221 are also formed at the ends of the pins 22 of the socket. Based on the orientation shown in fig. 2, the socket guide 221 is configured to form a predetermined angle with the distal end surfaces of the pins 22 of the socket to form a substantially V-shape, i.e., the cross-section of the distal ends of the pins 22 of the socket is gradually reduced toward the distal end surfaces, so that the pins 22 of the socket can be more easily inserted into the insertion holes 13 of the plug. The predetermined angle may be 45 °, or other suitable angle greater or less than 45 °.
With continued reference to fig. 2, and based on the orientation shown in fig. 2, a receptacle 23 of a receptacle extending perpendicularly from the second end face 211 into the receptacle body 21 is also formed in the receptacle body 21. Based on the orientation shown in fig. 2, the insertion holes 23 of the receptacle and the pins 22 of the receptacle are arranged to be spaced apart from each other in the horizontal direction, and the insertion holes 23 of the receptacle are located on the right side of the pins 22 of the receptacle. Alternatively, the receptacles 23 of the socket may be located to the left of the pins 22 of the socket. Further, the pins 22 of the socket and the insertion holes 23 of the socket may be arranged to be spaced apart from each other in the vertical direction. The receptacles 23 of the receptacle are configured to receive the prongs 12 of a plug to form an electrical connection. In one or more embodiments, the receptacle 23 of the receptacle has a generally rectangular cross-section. Alternatively, the receptacle 23 of the receptacle may be configured to have a circular, oval or other suitable cross-section, so long as it is capable of receiving the prongs 12 of a plug. In one or more embodiments, receptacle metal tabs (not shown) are provided within the receptacle 23 of the receptacle. In one or more embodiments, the receptacle metal tabs are configured to connect with a receptacle wire to form a positive pole such that when the prongs 12 of a plug are plugged into the receptacles 23 of a receptacle, the prongs 12 of the plug can contact the receptacle metal tabs to form an electrical connection. Alternatively, the receptacle metal tabs may be configured as negative poles, so long as they are capable of mating with the pins 12 of the plug. The socket metal connecting sheet can be made of materials such as brass, red copper or copper galvanization, and the like, so that better conductivity and corrosion resistance can be obtained. In one or more embodiments, first and second lugs 29a and 29b are disposed on opposite sides of the receptacle body 21, respectively, based on the orientation shown in fig. 2. The first and second hanging lugs 29a and 29b are each configured in a substantially triangular shape. Alternatively, the first and second lugs 29a, 29b may be configured in a rectangular, semi-circular, or other suitable shape. Alternatively, the first and second lugs 29a and 29b may be disposed on the upper and lower sides of the socket body 21, respectively, or in other suitable positions. A first mounting hole 291a having a substantially circular shape is formed in the first hanger 29a, and a second mounting hole 291b having a substantially circular shape is also formed in the second hanger 29 b. The first and second mounting holes 291a and 291b may be respectively engaged with mounting members (not shown) so that the socket 20 may be detachably fixed to other suitable members, such as a frame of an electric vehicle.
Fig. 3 is a schematic structural view of a second embodiment of the plug of the present invention. In one or more embodiments, as shown in fig. 3, the plug 10 has a plug body 11 and a plug wire connected to the plug body 11. On the first end face 111 of the plug body 11 facing away from the paper, the pins 12 and the plug bosses 14 of the plug are arranged at a distance from one another and both extend perpendicularly outwards, based on the orientation shown in fig. 3, so that the pins 12 and the plug bosses 14 of the plug are parallel to one another. In one or more embodiments, the pins 12 and the plug bosses 14 of the plug extend perpendicularly outwardly from the first end surface 111 the same height, making the structure of the plug 10 more regular. In one or more embodiments, the plug boss 14 is configured to be integrally formed with the plug body 11 using an injection molding process to simplify the manufacturing process and facilitate processing. In one or more embodiments, plug boss 14 has a generally rectangular cylindrical configuration. Alternatively, the plug bosses 14 may be provided in a cylindrical configuration or other suitable configuration. Plug insertion holes 13 extending vertically from the ends of the plug bosses 14 into the plug bosses 14 are provided in the plug bosses 14. In one or more embodiments, plug metal tabs are also provided within the receptacle 13 of the plug for connection to the plug wires to make electrical contact with the prongs 22 of the receptacle.
Fig. 4 is a schematic structural diagram of a second embodiment of the socket of the present invention. In one or more embodiments, as shown in FIG. 4, the receptacle 20 has a receptacle body 21 and a receptacle cord connected to the receptacle body 21. On the second end face 211 of the socket body 21 facing away from the paper, the pins 22 and the socket bosses 24 of the socket are provided spaced apart from each other and extending perpendicularly outward, based on the orientation shown in fig. 4, so that the pins 22 and the socket bosses 24 of the socket are parallel to each other. In one or more embodiments, the prongs 22 and receptacle bosses 24 of the receptacle extend perpendicularly outwardly from the second end face 211 to the same height, making the structure of the receptacle 20 more regular. In addition, the pins 22 and the socket bosses 24 of the socket and the pins 12 and the plug bosses 14 of the plug are spaced at appropriate distances so that the pins 12 of the plug can be smoothly inserted into the insertion holes 23 of the socket and the pins 22 of the socket can be smoothly inserted into the insertion holes 13 of the plug without interference when the plug 10 is inserted into the socket 20. In one or more embodiments, the socket boss 24 is configured to be integrally formed with the socket body 21 using an injection molding process to simplify the manufacturing process and facilitate processing. In one or more embodiments, receptacle boss 24 has a generally rectangular cylindrical configuration. Alternatively, the receptacle boss 24 may be provided in a cylindrical configuration or other suitable configuration. The receptacle insertion holes 23 extending vertically from the distal ends of the receptacle bosses 24 into the receptacle bosses 24 are provided in the receptacle bosses 24. In one or more embodiments, receptacle metal tabs are also provided within the receptacle 23 of the receptacle for connection to the receptacle wires to make electrical connection with the pins 12 of the plug.
Fig. 5 is a schematic structural view of a plug of a third embodiment of the present invention. In one or more embodiments, as shown in fig. 5, the plug 10 has a plug body 11 and a plug wire connected to the plug body 11. Based on the orientation shown in fig. 5, the pins 12 and the plug bosses 14 of the plug, which are spaced apart from each other and both extend perpendicularly outward, are formed on the first end surface 111 of the plug body 11, which is away from the paper surface, so that the pins 12 and the plug bosses 14 of the plug are parallel to each other. In one or more embodiments, a plug circumferential wall 15 extending perpendicularly outward and surrounding the pins 12 and plug bosses 14 of the plug is also provided on the first end face 111. The plug circumferential wall 15 defines a plug socket 16 on the plug body 11. The plug peripheral wall 15 is provided to reduce the likelihood of a user touching the plug pins 12 and also to protect the plug pins 12 and plug bosses 14 for extended service life. The plug circumferential wall 15 may be formed integrally with the plug body 11 using an injection molding process to simplify the manufacturing process. Further, the plug circumferential wall 15 is configured to be integrally connected with the plug boss 14 and end portions of both are flush, so that strength of the plug boss 14 is enhanced to prolong service life, and rigidity of the plug circumferential wall 15 can be enhanced to prevent deformation during plugging. In one or more embodiments, as shown in fig. 5, based on the orientation shown in fig. 5, the plug peripheral wall 15 defines a substantially trapezoidal profile at the upper portion and a substantially rectangular profile at the lower portion, such that the plug 10 has a specific shape, which is effective to prevent the plug 10 from being mis-plugged into other unmated sockets to cause circuit damage. In one or more embodiments, a first polarity indicia 18 is formed on the end wall of plug boss 14 and positioned proximate to the receptacle 13 of the plug to identify the polarity of the receptacle 13 of the plug. In one or more embodiments, first polarity indicia 18 is a "+" shaped positive indicia. Alternatively, the first polarity mark 18 may also be a "-" shaped negative polarity mark. By providing the first polarity mark 18, the plug 10 can be conveniently wired, and the circuit damage caused by the reverse connection of the positive electrode and the negative electrode can be prevented.
With continued reference to fig. 5, in one or more embodiments, communication pins 17 are also provided on the first end surface 111 that extend vertically outward. Based on the orientation shown in fig. 5, the communication pins 17 include a first communication pin 17a and a second communication pin 17b spaced apart from each other in the horizontal direction and located above the pins 12 and the plug bosses 14 of the plug. It is understood that the positions of the first communication pin 17a and the second communication pin 17b can be adjusted according to actual needs. The first communication pin 17a and the second communication pin 17b each have a substantially circular cross section. Alternatively, the first and second communication pins 17a and 17b may be configured to have cross-sections of other suitable shapes, such as rectangular, square, oval, etc. Further, the number of the communication pins 17 may be configured to be other suitable numbers more or less than 2, such as 1, 3, etc.
Fig. 6 is a schematic structural view of a third embodiment of the socket of the present invention. In one or more embodiments, as shown in FIG. 6, the receptacle 20 has a receptacle body 21 and a receptacle cord connected to the receptacle body 21. Based on the orientation shown in fig. 6, the pins 22 and the socket bosses 24 of the socket, which are spaced from each other and both extend perpendicularly outward, are formed on the second end face 211 of the socket body 21, which faces away from the paper surface, so that the pins 22 and the socket bosses 24 of the socket are parallel to each other. In one or more embodiments, as shown in fig. 6, receptacle boss 24 has a generally trapezoidal upper portion and a generally rectangular lower portion such that receptacle boss 24 may mate with plug socket 16 on plug 10. In one or more embodiments, a receptacle circumferential wall 25 extending perpendicularly outward and surrounding the pins 22 and receptacle bosses 24 of the receptacle is also provided on the second end face 211. The receptacle circumferential wall 25 defines a receptacle slot 26 on the receptacle body 21. The provision of the socket peripheral wall 25 reduces the likelihood of a user touching the pins 22 of the socket and also serves to protect the pins 22 and the socket bosses 24 of the socket for an extended service life. The receptacle circumferential wall 25 may be integrally formed with the receptacle body 21 using an injection molding process to simplify the manufacturing process. When the plug 10 is plugged into the receptacle 20, the plug circumferential wall 15 (including the plug bosses 14) may be plugged into the receptacle slots 26 on the receptacle 20 and the receptacle bosses 24 may be plugged into the plug slots 16 on the plug 10, such that the contact area between the plug 10 and the receptacle 20 is increased to form a stable and secure connection. In one or more embodiments, second polarity indicia 28 are formed on the end walls of the receptacle bosses 24 and positioned adjacent the receptacles 23 of the receptacle to identify the polarity of the receptacles 23 of the receptacle. In one or more embodiments, the second polarity indicia 28 is a negative sign of a "-" shape. Alternatively, the second polarity mark 28 may also be a "+" shaped positive mark. By providing the second polarity mark 28, the socket 20 can be easily wired, and the circuit damage caused by the reverse connection of the positive electrode and the negative electrode can be prevented.
With continued reference to fig. 6, in one or more embodiments, a communication jack 27 is also provided at the upper portion of the receptacle boss 24 that extends vertically into the receptacle boss 24. Based on the orientation shown in fig. 6, the communication jack 27 includes a first communication jack 27a and a second communication jack 27b that are spaced apart from each other in the horizontal direction. It is understood that the positions of the first communication jack 27a and the second communication jack 27b can be adjusted according to actual needs. The first and second communication jacks 27a and 27b each have a generally circular cross-section for receiving the second and first communication pins 17b and 17 a. A first communication metal tab (not shown) is provided in the first communication jack 27a, and a second communication metal tab (not shown) is provided in the second communication jack 27b, so that when the second communication pin 17b and the first communication pin 17a are inserted into the first communication jack 27a and the second communication jack 27b, respectively, the second communication pin 17b can be brought into contact with the first communication metal tab to form a communication connection, and the first communication pin 17a can be brought into contact with the second communication metal tab to form a communication connection. Alternatively, the first and second communication jacks 27a and 27b may be configured to have cross-sections of other suitable shapes, such as rectangular, square, oval, etc. Further, the number of the communication jacks 27 may be configured to be other suitable numbers more or less than 2, such as 1, 3, etc., as long as they can be matched with the communication pins 17.
In one or more embodiments, the plug device of the present invention includes a plug 10 as described in any of the above embodiments and a mating receptacle 20.
In one or more embodiments, the present invention also provides a charger (not shown). The charger has a plug 10 as described in any of the above embodiments. The charger further comprises a power plug having a plug portion which is connectable to a power source, an adapter which can adjust an output voltage of the power source, and a plug 10 connected to the adapter. In one or more embodiments, the power source is 220V mains power. The adapter is configured to regulate the 220V supply voltage to a suitable output voltage, such as 57V, or other suitable voltage greater or less than 57V, by limiting voltage and current, etc.
In one or more embodiments, the present invention also provides a battery pack (not shown). The battery pack includes the receptacle 20 described in any of the above embodiments. In one or more embodiments, the battery pack has 4 lead-acid batteries connected in series. Alternatively, the battery pack may be provided as a secondary battery other than a lead acid battery, such as a lithium ion battery or the like. Alternatively, the number of cells of the battery pack may be set to other suitable numbers more or less than 4, such as 2, 6, etc. The receptacle 20 is configured to form an electrical connection with each cell in the battery pack in order to charge it.
In one or more embodiments, the present invention also provides an electric vehicle (not shown). The electric vehicle comprises the charger according to any one of the above embodiments and the battery pack according to any one of the above embodiments. In one or more embodiments, the electric vehicle is an electric bicycle. Alternatively, the electric vehicle may be an electric motorcycle vehicle, an electric moped, or other suitable electric vehicle. By arranging the plug 10 and the socket 20 which are mutually matched and have the same male and female seat structure, when the charger is used for charging the battery pack of the electric vehicle, the risk of electric shock accidents of users can be effectively avoided or reduced.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (10)
1. A plug having a pin which can form either a positive or negative pole and a socket which can form the other of the positive or negative pole.
2. A socket having a pin which can form either a positive or negative pole and a socket which can form the other of the positive or negative pole.
3. A plug device, comprising:
the plug of claim 1;
the socket as set forth in claim 2, wherein the socket is a single socket,
wherein the pins of the plug are insertable into the sockets of the socket and the pins of the socket are insertable into the sockets of the plug such that when the plug is plugged to the socket, electrical connections can be made between the pins of the plug and the sockets of the socket and between the pins of the socket and the sockets of the plug, respectively.
4. A plug device according to claim 3, wherein a plug metal lug is provided in the socket of the plug and a socket metal lug is provided in the socket of the socket, such that when the plug is plugged into the socket, the pins of the plug are contactable with the socket metal lugs and the pins of the socket are contactable with the plug metal lugs.
5. The plugging device of claim 4,
the pins of the plug are configured to extend perpendicularly outwardly from the plug body of the plug, the sockets of the plug are configured to extend perpendicularly inwardly of the plug body, and
the prongs of the receptacle are configured to extend perpendicularly outward from the receptacle body of the receptacle and the receptacles of the receptacle are configured to extend perpendicularly inward from the receptacle body.
6. The plugging device of claim 4,
the pins of the plug are configured to extend perpendicularly outwardly from a plug body of the plug, and plug bosses are formed on the plug body to be spaced apart from and parallel to the pins of the plug, the insertion holes of the plug are arranged in the plug bosses, and
the pins of the socket are configured to extend perpendicularly outwardly from a socket body of the socket, and socket bosses spaced apart from and parallel to the pins of the socket are formed on the socket body, and the insertion holes of the socket are arranged in the socket bosses.
7. The plugging device of claim 6,
a plug circumferential wall surrounding the plug and the plug boss is formed on the plug body to enclose a plug slot receivable of the receptacle boss, and a receptacle circumferential wall surrounding the plug and the receptacle boss is formed on the receptacle body to enclose a receptacle slot receivable of the plug boss, so that the plug circumferential wall is insertable into the receptacle slot when the plug is plugged onto the receptacle.
8. A charger, characterized in that it comprises a plug according to claim 1.
9. A battery pack characterized in that it comprises a socket according to claim 2.
10. An electric vehicle characterized by comprising the charger according to claim 8 and the battery pack according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111027030.8A CN113690664A (en) | 2021-09-02 | 2021-09-02 | Plug, socket, plug device, charger, battery pack and electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111027030.8A CN113690664A (en) | 2021-09-02 | 2021-09-02 | Plug, socket, plug device, charger, battery pack and electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113690664A true CN113690664A (en) | 2021-11-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111027030.8A Pending CN113690664A (en) | 2021-09-02 | 2021-09-02 | Plug, socket, plug device, charger, battery pack and electric vehicle |
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| Country | Link |
|---|---|
| CN (1) | CN113690664A (en) |
Cited By (1)
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| CN116653606A (en) * | 2023-06-13 | 2023-08-29 | 新澜智能电子(常州)有限公司 | Lead-acid battery protection system and vehicle |
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