CN109742584B - Charging plug, charging socket and charging connecting device - Google Patents
Charging plug, charging socket and charging connecting device Download PDFInfo
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- CN109742584B CN109742584B CN201910110427.XA CN201910110427A CN109742584B CN 109742584 B CN109742584 B CN 109742584B CN 201910110427 A CN201910110427 A CN 201910110427A CN 109742584 B CN109742584 B CN 109742584B
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Abstract
The invention provides a charging plug, a charging socket and a charging connecting device, belonging to the field of electric connectors, wherein the charging plug comprises a guide plug, a conduction joint, a first conduction terminal, a first elastic connecting part and a second elastic connecting part; the guide plug is internally provided with a tube cavity and is connected with the second elastic connecting part through the first elastic connecting part; one end of the conduction joint is connected with the first conduction terminal and is arranged in the guide plug, and the other end of the conduction joint is connected with the second elastic connecting part; the charging socket comprises a stroke insertion tube and a circuit connection insertion tube; one end of the circuit connection insertion pipe is connected with the stroke insertion pipe, and a conduction circuit and a second conduction terminal are arranged on the inner wall of the circuit connection insertion pipe; the charging connecting device comprises a charging plug and a charging socket, has the characteristics of strong voltage resistance and overcurrent capacity, and can continuously transmit high-power charging electric energy for a long time; and the requirement on the alignment precision of the charging plug and the charging socket is low, the requirement on the high plugging service life is met, and the charging safety is ensured.
Description
Technical Field
The invention relates to the field of electric connectors, in particular to a plug, a charging socket and a charging connecting device.
Background
In recent years, although our country has a fast new energy automobile market development, the problems of short endurance mileage, long charging time and the like of the power battery are still key factors restricting the development of the electric automobile. Therefore, the problem of 'mileage anxiety' of a user is solved, the shortening of the charging time becomes a common recognition in the industry, and the most effective method for shortening the charging time is to improve the charging power under the condition allowed by the power battery. However, the charging connection device commonly used in China at present has certain limitations in the aspects of physical structure, electrical performance, charging safety and the like, so that the maximum single-loop charging power can only reach 150kW, which has a great difference from the high-power quick charging standard requirement specified by the international electrotechnical commission, namely the numerical value of 350 kW. It has become critical to develop a high voltage, high current, and safe and reliable charging connection device.
Disclosure of Invention
A first object of the present invention is to provide a charging plug, in which a conductive contact is hidden inside a guide plug, so as to effectively protect the conductive contact.
The second purpose of the invention is to provide a charging socket, which is used for being matched and connected with a charging plug, and the charging socket and the charging plug are designed by adopting a self-alignment insertion structure, so that the requirement on alignment precision is low, and the requirement on long plugging service life is met; the charging plug and the charging socket adopt a touch-proof protection design and a waterproof dustproof self-cleaning design to the plug interface, so that the charging safety is ensured.
The third purpose of the present invention is to provide a charging connection device, which includes the charging plug and the charging socket.
In view of the first object, the present invention provides a charging plug, including: the conductive connector comprises a guide plug, a conductive joint, a first conductive terminal, a first elastic connecting part and a second elastic connecting part;
the guide plug is internally provided with a tube cavity for accommodating the conduction connector, and the tail end of the guide plug is connected with the second elastic connecting part through a first elastic connecting part;
one end of the conduction joint is arranged in the guide plug, the first conduction terminal is arranged at one end of the conduction joint, and the other end of the conduction joint sequentially penetrates through the tail end of the guide plug and the first elastic connecting part to be connected with the second elastic connecting part;
the first elastic connecting part has an elastic force which enables the second elastic connecting part to move towards a direction far away from the guide plug, so that the conduction joint can extend into a pipe cavity of the guide plug under the driving of the second elastic connecting part;
or the second elastic connecting part can overcome the elastic force of the first elastic connecting part to move towards the direction of the guide plug, so that one end of the conduction joint, which is connected with the first conduction terminal, extends out of the head end of the guide plug.
Furthermore, the guide plug comprises a guide sleeve and a self-cleaning sleeve, the self-cleaning sleeve is connected with the head end of the guide sleeve, and the diameter of the self-cleaning sleeve is smaller than that of the guide sleeve.
Furthermore, a first sensor is arranged at the head end of the conduction joint, an insulating sheath is arranged at the head end of the self-cleaning sleeve, and when the conduction joint extends into the guide plug, the first sensor is abutted to the insulating sheath.
Further, still include distribution control box and conducting wire, distribution control box sets up the tip at second elastic connection portion, the conducting wire is connected respectively distribution control box with the conduction terminal.
Based on the second objective, the present invention provides a charging socket, which includes a stroke insertion tube and a circuit connection insertion tube; one end of the circuit connecting insertion tube is connected with the stroke insertion tube,
the inner channel of the stroke insertion pipe plays a role in guiding the charging plug;
the inner wall of the circuit connecting insertion pipe is provided with a conducting circuit and a second conducting terminal which are used for connecting a charging plug.
Further, the inner wall of the travel insertion tube is provided with a first self-cleaning tube socket, the inner wall of the circuit connection insertion tube is provided with a second self-cleaning tube socket, and the second self-cleaning tube socket is located between the first self-cleaning tube socket and the second conduction terminal.
Further, the device also comprises a second sensor, and the second sensor is positioned between the stroke insertion pipe and the circuit connection insertion pipe.
Furthermore, the stroke insertion pipe is provided with a first air inlet communicated with an internal channel of the stroke insertion pipe, and the first air inlet is positioned on one side of the first self-cleaning pipe sleeve far away from the circuit connection insertion pipe;
the circuit connecting insertion pipe is provided with a second air inlet communicated with an internal channel of the circuit connecting insertion pipe, and the second air inlet is positioned between the first self-cleaning pipe sleeve and the second self-cleaning pipe sleeve;
a first sewage draining port is formed between the inner channel of the stroke insertion pipe and the first self-cleaning pipe sleeve, a second sewage draining port is arranged on the inner channel of the stroke insertion pipe, and the second sewage draining port is located between the first self-cleaning pipe sleeve and the second air inlet.
Further, the self-guiding inserting tube comprises a self-guiding inserting hole, the self-guiding inserting hole is connected with one end, far away from the circuit connecting inserting tube, of the stroke inserting tube, and the shape of an inner channel of the self-guiding inserting hole is a cone with the diameter increasing gradually from the circuit connecting inserting tube to the stroke inserting tube.
In view of the third object, the present invention provides a charging connecting device, which includes the charging plug and the charging socket, wherein the guiding plug of the charging plug can be inserted into the travel socket of the charging socket, the conducting contact can be inserted into the circuit connecting socket, and the first conducting terminal and the second conducting terminal are in contact.
Has the advantages that:
according to the charging plug provided by the invention, the first elastic connecting part has an elastic force which can enable the second elastic connecting part to move towards the direction away from the guide plug, so that the conduction joint can extend into a pipe cavity of the guide plug under the driving of the second elastic connecting part; the first elastic connecting part can enable the conduction joint to be positioned in a pipe cavity of the guide plug under the condition of naturally not being subjected to external force, so that the first conduction terminal is hidden in the guide plug and isolated from the outside, and an electrified part cannot be touched to play a role in protection; or the second elastic connecting part can overcome the elastic force of the first elastic connecting part and move towards the direction of the guide plug, so that one end of the conduction joint connected with the first conduction terminal can extend out of the head end of the guide plug, and the first conduction terminal is in contact connection with the corresponding conduction terminal in the charging socket.
According to the charging socket provided by the invention, the self-guiding socket and the stroke insertion pipe are designed on the charging socket body, the charging plug is provided with the guiding plug, the self-alignment insertion structure design is realized by the mutual matching of the self-alignment insertion structure and the stroke insertion pipe, the alignment precision requirement is low, and the requirement on long plugging service life is met.
The charging connecting device provided by the invention adopts the charging plug and the charging socket.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a charging plug according to an embodiment of the present invention in a non-operating state;
fig. 2 is a schematic structural diagram of a charging plug according to an embodiment of the present invention in an operating state;
fig. 3 is a schematic structural diagram of a charging socket according to an embodiment of the present invention;
fig. 4 is a schematic internal structural diagram of a charging socket according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a charging connection device in a first plugging state according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of the charging connection device in a second plugging state according to the embodiment of the present invention.
Icon: 100-a charging plug; 110-a guide plug; 111-a guide sleeve; 112-self-cleaning sleeve; 113-an insulating sheath; 120-conductive joint; 121-a first sensor; 130-a first conductive terminal; 140-a first elastic connection; 150-a second elastic connection; 160-distribution control box; 170-conductive traces; 200-a charging socket; 210-a stroke cannula; 211-a first inlet; 212-first drain; 213-a second sewage draining exit; 220-a circuit connection cannula; 221-a second air inlet; 230-a conductive circuit; 240-a second conductive terminal; 250-a second sensor; 260-a first self-cleaning socket; 270-a second self-cleaning socket; 280-self-guiding socket.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
With the increasing requirements of the market on the cruising mileage and the charging time of the electric automobile, how to solve the problem of mileage anxiety of a user and shorten the charging time is an urgent matter. And shortening the charging time can only be achieved by increasing the charging power, increasing the charging voltage and the charging current. Therefore, the requirements for voltage resistance, overcurrent capability and safety performance of the charging connection device are becoming more and more strict.
At present, a charging connecting device (comprising a charging plug and a charging socket) commonly used in China has electrical specification parameters of 750V maximum rated voltage and 250A maximum rated current (shown in a table 1); the charging plug and the socket are connected in a seamless opposite-insertion type structure, the electric energy conduction terminal is exposed, a spring flip structure is adopted, and waterproof and dustproof are carried out through a sealing rubber ring which is arranged in a charging socket connector.
TABLE 1 Electrical Specification parameters for charging connection devices commonly used in China
At present, the charging connecting device commonly used in China has electrical specification parameters of 750V maximum rated voltage and 250A maximum rated current, and can not meet the high-power charging requirement of the market; the charging plug and the socket are connected by a seamless opposite-insertion structure, the requirement on the alignment precision is high, the limit device at the connection part is easy to damage, and the plugging service life is low; the electric energy conduction terminal is exposed in the air, so that the electric energy conduction terminal is easy to oxidize and damage to cause the reduction of conduction capability, and the problems of serious heating and even ablation during charging are solved; the charging socket adopts a spring flip structure, has poor protection effect and is easy to deposit dirt; the sealing rubber ring arranged in the interface is easy to age and fall off, and loses the waterproof and dustproof functions.
Aiming at the problems, the invention provides a charging plug, a charging socket and a charging connecting device, wherein the charging plug and the charging socket adopt unique engineering appearance design, and a conduction circuit is internally sealed, so that the surface oxidation of a joint can be prevented, and the electric properties such as voltage resistance, overcurrent resistance and the like are greatly improved; the charging plug and the charging socket are designed by adopting a self-alignment insertion structure, the alignment precision requirement is low, and the requirement on high plugging service life is met; the charging plug and the charging socket adopt a touch-proof protection design and a waterproof dustproof self-cleaning design to the plug interface, so that the charging safety is ensured.
The charging connecting device finally achieves the aim of continuously transmitting high-power charging electric energy for a long time through the innovative design.
The following specifically describes specific structures of a charging plug, a charging socket, and a charging connection device provided in the embodiments of the present invention.
As shown in fig. 1 and fig. 2, a charging plug 100 according to an embodiment of the present invention includes: a guide plug 110, a conductive contact 120, a first conductive terminal 130, a first elastic connection portion 140, and a second elastic connection portion 150.
The guide plug 110 comprises a guide sleeve 111 and a self-cleaning sleeve 112, the self-cleaning sleeve 112 is connected with the head end of the guide sleeve 111, and the diameter of the self-cleaning sleeve 112 is smaller than that of the guide sleeve 111. The guide plug 110 serves to facilitate a sealing connection with the inside of the charging socket 200 on the one hand, and to protect the conductive contact 120 on the other hand.
The guide plug 110 is provided with a lumen for accommodating the conductive connector 120, and the tail end of the guide plug 110 is connected with the second elastic connecting part 150 through the first elastic connecting part 140; the trailing end here refers to the trailing end of the guide sleeve 111.
One end of the conductive contact 120 is disposed in the guide plug 110, and the first conductive terminal 130 is disposed at one end of the conductive contact 120, and the other end of the conductive contact 120 sequentially passes through the tail end of the guide plug 110 and the first elastic connection part 140, and then is connected to the second elastic connection part 150; the first conductive terminal 130 herein refers to a direct current high voltage terminal DC +, a low voltage terminal DC-, and a ground terminal PE, which are arranged in a ring shape, respectively.
The first elastic connection portion 140 has an elastic force that moves the second elastic connection portion 150 toward a direction away from the guide plug 110, so that the conductive joint 120 can be driven by the second elastic connection portion 150 to extend into the lumen of the guide plug 110; that is, as shown in fig. 1, the first elastic connection portion 140 can make the conductive joint 120 be located in the lumen of the guide plug 110 without being subjected to an external force, so as to hide the first conductive terminal 130 in the guide plug 110, isolate the first conductive terminal 130 from the outside, prevent the charged part from being touched, and protect the charged part.
Alternatively, as shown in fig. 2, the second elastic connection portion 150 can move toward the direction of the guide plug 110 against the elastic force of the first elastic connection portion 140, so that the end of the conductive contact 120 connected to the first conductive terminal 130 can extend out of the head end of the guide plug 110, thereby allowing the first conductive terminal 130 to be in contact connection with the corresponding conductive terminal inside the charging socket 200.
It should be noted that the first elastic connection portion 140 is preferably a spring, and the second elastic connection portion 150 includes a spring and connection seats at two ends of the spring, wherein one of the connection seats is used for connecting the first elastic connection portion 140, and the other connection seat is used for connecting the corresponding power distribution control box 160.
Preferably, the head end of the conductive contact 120 is further provided with a first sensor 121, the head end of the self-cleaning sleeve 112 is provided with an insulating sheath 113, and the first sensor 121 can abut against the insulating sheath 113 when one end of the conductive contact 120 is inserted into the guide plug 110. Accordingly, the first sensor 121 is in contact with the insulating sheath 113, so that the self-cleaning sleeve 112 is located in a sealed space inside, and the conductive connector 120 and the first conductive terminal 130 thereon are protected when the charging plug 100 is idle.
Preferably, the charging plug 100 in this embodiment further includes a power distribution control box 160 and a conductive circuit 170, the power distribution control box 160 is disposed at an end of the second elastic connection portion 150, that is, connected to the other connection seat, the conductive circuit 170 is respectively connected to the power distribution control box 160 and the first conductive terminal 130, and the conductive circuit 170 includes a high voltage wire harness and a low voltage wire harness.
The present embodiment provides the charging plug 100, and by adjusting the specifications of the conductive contact 120 and the high-voltage wire harness, the magnitude of the voltage-proof and overcurrent capacity of the charging plug 100 as a whole can be changed.
As shown in fig. 3 and 4, a charging socket 200 provided in an embodiment of the present invention is used with the charging plug 100 provided in the above embodiment, specifically, the charging socket 200 includes a stroke insertion tube 210, a circuit connection insertion tube 220; one end of the circuit connection insertion tube 220 is connected with the stroke insertion tube 210, and an internal channel of the stroke insertion tube 210 plays a role in guiding the charging plug 100; specifically, the shape of the inner channel of the stroke insertion tube 210 is respectively adapted to the pipe diameter, shape and length of the guide sleeve 111 and the self-cleaning sleeve 112 according to the insertion direction, so that the stroke insertion tube 210, the guide sleeve 111 and the self-cleaning sleeve 112 can be tightly assembled to achieve a sealing effect.
The inner wall of the circuit connection insertion tube 220 is provided to connect the conductive circuit 230 and the second conductive terminal 240 of the charging plug 100. The conductive circuit 230 and the second conductive terminal 240 are respectively provided in a ring shape, wherein the second conductive terminal 240 includes a direct current high voltage terminal DC +, a low voltage terminal DC-, and a ground terminal PE, which are respectively provided in a ring shape, so as to be in contact with the direct current high voltage terminal DC +, the low voltage terminal DC-, and the ground terminal PE, respectively, in the first conductive terminal 130 on the conductive joint 120.
Preferably, the charging hub 200 further includes a second sensor 250, the second sensor 250 being located at a position between the travel cannula 210 and the circuit connection cannula 220. The second sensor 250 and the first sensor 121 are magnetic sensors, and when the charging plug 100 is inserted into the charging socket 200, the second sensor 250 and the first sensor 121 generate electromagnetic induction to determine whether the charging plug 100 is inserted in place.
Before the charging plug 100 is plugged into the charging socket 200, the conductive connector 120 is hidden inside the guide plug 110, is wrapped and protected by the self-cleaning sleeve 112, the insulating sheath 113 and the first sensor 121, is isolated from the outside, and a charged part (the first conductive terminal 130) cannot be touched; in the process of inserting the charging plug 100 into the charging socket 200, after the guiding plug 110 completely enters the stroke insertion tube 210, when the second sensor 250 and the first sensor 121 generate electromagnetic induction, and it is determined that the self-cleaning sleeve 112 is inserted in place, the first elastic connection part 140 can be compressed by the second elastic connection part 150, so that the conductive connector 120 extends out of the guiding plug 110 and is connected with the conductive circuit 230 and the second conductive terminal 240 inside the circuit connection insertion tube 220.
Preferably, the inner wall of the travel insertion tube 210 is provided with a first self-cleaning tube sleeve 260, the inner wall of the circuit connection insertion tube 220 is provided with a second self-cleaning tube sleeve 270, and a second self-cleaning pipe is located between the first self-cleaning tube sleeve 260 and the second conduction terminal 240.
Preferably, the stroke insertion tube 210 is provided with a first air inlet 211 communicated with the inner channel thereof, the first air inlet 211 is positioned at one side of the first self-cleaning socket 260 far away from the circuit connection insertion tube 220;
the circuit connecting insertion tube 220 is provided with a second air inlet 221 communicated with the internal channel thereof, and the second air inlet 221 is positioned between the first self-cleaning sleeve 260 and the second self-cleaning sleeve 270;
a first drain outlet 212 is formed between the inner passage of the stroke insert pipe 210 and the first self-cleaning socket 260, the inner passage of the stroke insert pipe 210 is provided with a second drain outlet 213, and the second drain outlet 213 is positioned between the first self-cleaning socket 260 and the second inlet 221.
The self-cleaning sleeve 112 and the inner wall of the charging socket 200 are respectively closely attached to the first self-cleaning sleeve 260 and the second self-cleaning sleeve 270, so that impurities such as sewage and dust are respectively filtered between the two first self-cleaning sleeves 260 and the second self-cleaning sleeve 270 to form a sewage discharge space. Thereby, the conductive connector 120 is in a clean space when extending out of the guide plug 110, and the influence of sundries on charging is reduced. Referring to fig. 5, to determine whether the charging plug 100 is inserted in place), compressed air is introduced into the first air inlet 211 to discharge the impurities through the first sewage outlet 212, and then compressed air is introduced into the second air inlet 221 to discharge the impurities through the second sewage outlet 213;
as shown in fig. 6, after the self-cleaning operation is completed, the first elastic connection part 140 is compressed by the second elastic connection part 150, so that the conductive contacts 120 protrude from the guide pins 110 to be connected to the conductive circuit 230 and the second conductive terminals 240 inside the circuit connection pins 220, and the power transmission operation is started. In the charging process, the electric energy conduction space is always in a clean and sealed state through filtering and plugging between the first self-cleaning pipe sleeve 260 and the second self-cleaning pipe sleeve 270.
Preferably, the charging socket 200 further comprises a self-guiding socket 280 connected to an end of the travel insertion tube 210 away from the circuit connection insertion tube 220, and the shape of the inner tube of the self-guiding socket 280 is a cone with an increasing diameter from the circuit connection insertion tube 220 to the travel insertion tube 210.
When charging plug 100 and charging socket 200 begin to make plug-in contact, the inclination of the head end of guide plug 110 and the inclination of the wall fit of the inner wall of self-guiding socket 280 are the same; under the action of the transverse thrust, the guide plug 110 slides into the stroke socket along the pipe wall, so as to play a role in guiding and smoothly connect the charging plug 100 with the charging socket 200.
Referring to fig. 1 to 6, a charging connection device according to an embodiment of the present invention includes the charging plug 100 and the socket 200, the guiding plug 110 of the charging plug 100 can be inserted into the stroke insertion tube 210 of the socket 200, the conducting terminal 120 can be inserted into the circuit connection insertion tube 220, and the first conducting terminal 130 and the second conducting terminal 240 are in contact.
Compared with the prior art, the charging connecting device provided by the embodiment of the invention has the following advantages:
1. the voltage resistance and overcurrent capacity are strong, and high-power charging electric energy can be continuously transmitted for a long time; the self-alignment inserting structure is designed, the alignment precision requirement is low, and the requirement of high plugging service life is met; touch protection design, waterproof dustproof automatically cleaning design are prevented, and charging safety is guaranteed.
2. The charging plug and the charging socket adopt unique engineering appearance design, and the conduction circuit is internally sealed, so that the voltage resistance, overcurrent resistance and other electrical properties are greatly improved; the rated voltage of the charging plug and the charging socket is increased to 1000V for 800-.
3. The design has self-steering socket and stroke intubate on the socket body that charges, and charging plug is provided with guide plug, and self-alignment inserts the structural design and realizes by both mutually supporting, and the counterpoint accuracy requirement is low, satisfies high plug life-span requirement.
4. Touch protection design: before the charging plug is plugged with the charging socket, the conduction joint is hidden inside the guide plug, is wrapped and protected by the self-cleaning sleeve, the insulating sheath and the first sensor, is isolated from the outside, and cannot be touched at a charged part; in the process of plugging the charging plug and the charging socket, the guide plug completely enters the charging socket, and then the conduction connector can extend out through the first elastic connecting part and the second elastic connecting part and is connected with a conduction circuit inside the charging socket.
4. Waterproof dustproof automatically cleaning design: the charging plug is provided with a self-cleaning sleeve, and the charging socket is internally provided with a first air inlet, a second air inlet, a first self-cleaning sleeve, a second self-cleaning sleeve, a first sewage outlet and a second sewage outlet. In the process of plugging the charging plug and the charging socket, the self-cleaning sleeve is tightly attached to the first self-cleaning sleeve and the second self-cleaning sleeve on the inner pipe wall of the charging socket, and impurities such as sewage, dust and the like are respectively filtered to a space between the first self-cleaning sleeve and the second self-cleaning sleeve to form a sewage discharge space; after the charging plug and the charging socket are inserted in place, compressed air is introduced into the first air inlet to discharge sundries through the first sewage discharge port, and then compressed air is introduced into the second air inlet to discharge the sundries through the first sewage discharge port and the second sewage discharge port; in the charging process, the electric energy conduction space is always in a clean and sealed state through the filtering and plugging of the first self-cleaning pipe sleeve and the second self-cleaning pipe sleeve. Through the structural design, the charging connecting device can meet the requirement of charging safety performance
In summary, the charging connection device provided by the present embodiment has three main advantages: firstly, high-power charging electric energy (rated voltage 800-1000V, rated current 350-450A, electric energy transmission power can reach 350kW) can be continuously transmitted for a long time; secondly, through the self-alignment insertion structure design, the alignment precision requirements of the charging plug and the charging socket are reduced, and the insertion and extraction service life is prolonged; thirdly, through touch protection design, waterproof dustproof automatically cleaning design, satisfy the security performance requirement of charging.
The electrical specification parameters of the charging connection device provided by the embodiment of the invention are shown in Table 2
TABLE 2 Electrical Specification parameters of charging connection device
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. A charging plug, comprising: the conductive connector comprises a guide plug, a conductive joint, a first conductive terminal, a first elastic connecting part and a second elastic connecting part;
the guide plug is internally provided with a tube cavity for accommodating the conduction connector, and the tail end of the guide plug is connected with the second elastic connecting part through a first elastic connecting part;
one end of the conduction joint is arranged in the guide plug, the first conduction terminal is arranged at one end of the conduction joint, and the other end of the conduction joint sequentially penetrates through the tail end of the guide plug and the first elastic connecting part to be connected with the second elastic connecting part;
the first elastic connecting part has an elastic force which enables the second elastic connecting part to move towards a direction far away from the guide plug, so that the conduction joint can extend into a pipe cavity of the guide plug under the driving of the second elastic connecting part;
or the second elastic connecting part can overcome the elastic force of the first elastic connecting part to move towards the direction of the guide plug, so that one end of the conduction joint, which is connected with the first conduction terminal, extends out of the head end of the guide plug;
the head end of the conduction connector is provided with a first sensor, the guide plug comprises a self-cleaning sleeve, the head end of the self-cleaning sleeve is provided with an insulating sheath, and when the conduction connector extends into the guide plug, the first sensor is abutted to the insulating sheath.
2. The charging plug of claim 1, wherein the guide plug comprises a guide sleeve, the self-cleaning sleeve being connected with a head end of the guide sleeve, the self-cleaning sleeve having a diameter smaller than the guide sleeve diameter.
3. The charging plug according to claim 1, further comprising a power distribution control box provided at an end of the second elastic connecting portion, and a conductive line connecting the power distribution control box and the conductive terminal, respectively.
4. A charging socket is characterized by comprising a stroke insertion pipe and a circuit connection insertion pipe; one end of the circuit connecting insertion tube is connected with the stroke insertion tube,
the inner channel of the stroke insertion pipe plays a role in guiding the charging plug;
the inner wall of the circuit connecting insertion pipe is provided with a conduction circuit and a second conduction terminal which are used for connecting a charging plug;
the inner pipe wall of the travel insertion pipe is provided with a first self-cleaning pipe sleeve, the inner pipe wall of the circuit connection insertion pipe is provided with a second self-cleaning pipe sleeve, and the second self-cleaning pipe sleeve is located between the first self-cleaning pipe sleeve and the second conduction terminal;
the stroke insertion pipe is provided with a first air inlet communicated with an internal channel of the stroke insertion pipe, and the first air inlet is positioned on one side, away from the circuit connection insertion pipe, of the first self-cleaning pipe sleeve; the circuit connecting insertion pipe is provided with a second air inlet communicated with an internal channel of the circuit connecting insertion pipe, and the second air inlet is positioned between the first self-cleaning pipe sleeve and the second self-cleaning pipe sleeve; a first sewage draining port is formed between the inner channel of the stroke insertion pipe and the first self-cleaning pipe sleeve, a second sewage draining port is arranged on the inner channel of the stroke insertion pipe, and the second sewage draining port is located between the first self-cleaning pipe sleeve and the second air inlet.
5. The charging hub of claim 4, further comprising a second sensor positioned between the travel cannula and the circuit connection cannula.
6. The charging socket according to claim 4, comprising a self-guiding socket connected to an end of the travel insertion tube remote from the circuit connection insertion tube, wherein the shape of the internal passage of the self-guiding socket is tapered with increasing diameter in a direction from the circuit connection insertion tube to the travel insertion tube.
7. A charging connection device comprising the charging plug of any one of claims 1 to 3 and the charging socket of any one of claims 4 to 6, wherein a guide plug of the charging plug is insertable into the travel socket of the charging socket, the conductive contact is insertable into the circuit connection socket, and the first conductive terminal and the second conductive terminal are in contact.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910110427.XA CN109742584B (en) | 2019-02-11 | 2019-02-11 | Charging plug, charging socket and charging connecting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910110427.XA CN109742584B (en) | 2019-02-11 | 2019-02-11 | Charging plug, charging socket and charging connecting device |
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| CN109742584A CN109742584A (en) | 2019-05-10 |
| CN109742584B true CN109742584B (en) | 2021-01-26 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| FR2961026B1 (en) * | 2010-06-07 | 2015-04-17 | Multi Holding Ag | ELECTRICAL CONNECTION ELEMENT, VEHICLE AND RECHARGEING STATION COMPRISING SUCH A MALE ELEMENT, AND ELECTRICAL CONNECTION ASSEMBLY |
| US8641446B1 (en) * | 2012-07-27 | 2014-02-04 | Chin Nan Precision Electronics Co., Ltd. | Coaxial probe |
| CN206230294U (en) * | 2016-12-09 | 2017-06-09 | 周育民 | The electric rotary main shaft device of self-cleaning |
| CN208173896U (en) * | 2018-03-23 | 2018-11-30 | 郑州中能东道科技有限公司 | A kind of fixed device of charging pile socket |
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2019
- 2019-02-11 CN CN201910110427.XA patent/CN109742584B/en active Active
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