CN214523372U

CN214523372U - Charging device of new energy automobile

Info

Publication number: CN214523372U
Application number: CN202120551517.5U
Authority: CN
Inventors: 李山开
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-03-17
Filing date: 2021-03-17
Publication date: 2021-10-29
Anticipated expiration: 2031-03-17

Abstract

The invention provides a charging device of a new energy automobile, which comprises: a charging gun body; the charging gun comprises a first cylindrical section and a second cylindrical section which are integrally formed; a plurality of pistons are circumferentially arranged in the first cylindrical section and close to the second cylindrical section, and push plates are arranged at positions away from the pistons by preset distances; a corrugated pipe is communicated between the piston and the push plate; the piston comprises a piston cylinder and a first push rod, a spring is arranged in the piston cylinder, one end of the spring is connected to the bottom end face in the piston, the other end of the spring is connected to one end part of the first push rod, and the other end part of the first push rod is fixedly connected with a buckle; one end of the push plate, which is far away from the corrugated pipe, is fixedly connected with a second push rod through a second connecting rod, and the end part of the second push rod, which is far away from the second connecting rod, is fixedly connected with a connection confirmation conducting post; the middle position of one end of the push plate, which is far away from the corrugated pipe, is connected with a plug. The invention can automatically monitor whether the temperature at the plug exceeds the threshold value, carry out over-temperature protection measures and continue charging after the temperature is recovered to be normal.

Description

Charging device of new energy automobile

Technical Field

The application relates to new energy automobile technical field, especially relates to a charging device of new energy automobile.

Background

The new energy automobile electric automobile adopts unconventional automobile fuel as a power source, the new energy electric automobile needs to be connected with a charging pile by a charging gun to charge a vehicle-mounted power supply in the use process, the charging gun is completely inserted into a charging port of the automobile in the use process, the discharging current of the charging gun is large, the charging time is long, more heat is generated in the charging process, and the generated heat is difficult to discharge because a plug of the charging gun is completely inserted into the charging port of the automobile, so that the heat accumulation at the joint of the charging gun is easily caused in high-temperature weather, the local temperature is overhigh, the conventional charging gun is not provided with an over-temperature protection device, the work cannot be stopped even if the temperature of the charging gun head for charging the new energy automobile exceeds a safety threshold value, the heat is accumulated at the charging gun head, more and more heat is accumulated, and the short circuit condition of a socket and the plug is easily caused, serious and even cause fire. There is therefore a need for a charging gun that provides over-temperature protection.

Disclosure of Invention

In order to solve the above technical problem, the embodiments of the present specification are implemented as follows: the invention provides a charging device of a new energy automobile, which comprises:

a charging gun body;

the charging gun main body comprises a first cylindrical section and a second cylindrical section which are integrally formed;

a plurality of pistons are circumferentially arranged in the first cylindrical section and close to the second cylindrical section, and push plates are arranged at positions away from the pistons by preset distances;

a corrugated pipe is communicated between the piston and the push plate;

the piston comprises a piston cylinder and a first push rod, a spring is arranged in the piston cylinder, one end of the spring is connected to the bottom end face in the piston, the other end of the spring is connected to one end part of the first push rod, and the other end part of the first push rod is fixedly connected with a buckle;

one end, away from the corrugated pipe, of the push plate is fixedly connected with a second push rod through a second connecting rod, the end, away from the second connecting rod, of the second push rod is fixedly connected with a connection confirmation conducting post, and the connection confirmation conducting post is used for confirming the charging state of the new energy automobile;

one end of the push plate, which is far away from the corrugated pipe, is fixedly connected with a first connecting rod, and the first connecting rod extends into a sleeve fixed on the side wall of the inner cavity of the charging gun main body; the sleeve comprises a sleeve base and a sleeve wall, and expansion alloy is arranged in the sleeve, wherein in an initial state, the expansion alloy and the first connecting rod are separated by a preset distance;

a plug is connected to the middle position of one end, away from the corrugated pipe, of the push plate, and the plug is used for charging the new energy automobile;

preferably, the second push rod deviates from the second connecting rod and is close to the position where the connection confirmation conducting post is arranged, and the limiting baffle is used for limiting the position where the connection confirmation conducting post is arranged.

Preferably, the connection confirmation conductive column is provided with a first embedded micro thermal sensor and a second embedded micro thermal sensor; the first embedded micro thermal sensor and the second embedded micro thermal sensor are used for monitoring the temperature of the connection confirmation conducting column.

Preferably, the first embedded micro thermal sensor and the second embedded micro thermal sensor are mounted in the measurement hole inside the connection confirmation conductive pillar.

Preferably, the expansion alloy is any one of iron-nickel-cobalt glass sealing alloy or ceramic sealing alloy.

Preferably, the number of the pistons is 4-6.

Preferably, a grab handle is arranged on the second cylindrical section.

One embodiment of the present description achieves the following advantageous effects: the charging device of the new energy automobile provided by the invention has an over-temperature protection function, and can automatically stop the charging process when the temperature of the plug 2 exceeds a threshold value in the charging process of the new energy automobile to be charged, and automatically recover the charging process after the temperature is recovered to be normal. Compare the rifle that charges in prior art can avoid to a great extent that the rifle plug temperature that charges is too high, and the heat accumulates and leads to socket and plug to appear the phenomenon of short circuit and take place.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure 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, it is obvious that the drawings in the following description are only some embodiments described in the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without any creative effort.

Fig. 1 is a schematic structural diagram of a charging device of a new energy vehicle according to the present invention.

Wherein 1 denotes a charging gun body, 2 denotes a plug, 3 denotes a first embedded micro thermo-sensor, 4 denotes a second embedded micro thermo-sensor, 5 denotes a push plate, 6 denotes a snap, 7 denotes a first push rod, 8 denotes a piston, 9 denotes a spring, 10 denotes a bellows, 11 denotes a first link, 12 denotes a second link, 13 denotes a sleeve wall, 14 denotes an expansion alloy, 15 denotes a sleeve base, 16 denotes a limit stop, 17 denotes a second push rod, 18 denotes a first cylindrical section, 19 denotes a second cylindrical section, 20 denotes a piston cylinder, 21 denotes a connection confirmation conductive post, and 22 denotes a sleeve.

Detailed Description

To make the objects, technical solutions and advantages of one or more embodiments of the present disclosure more apparent, the technical solutions of one or more embodiments of the present disclosure will be described in detail and completely with reference to the specific embodiments of the present disclosure and the accompanying drawings. It is to be understood that the embodiments described are only a few embodiments of the present specification, and not all embodiments. All other embodiments that can be derived by a person skilled in the art from the embodiments given herein without making any creative effort fall within the scope of protection of one or more embodiments of the present specification.

As shown in fig. 1, fig. 1 is a schematic structural diagram of a charging device for a new energy vehicle provided by the present invention, the charging gun includes a charging gun main body 1, the charging gun main body 1 includes a first cylindrical section 18 and a second cylindrical section 19 which are integrally formed, the first cylindrical section 18 is a core of the present invention, and has a function of providing an over-temperature protection function for the charging gun, that is, after a temperature of a plug 2 of the charging gun exceeds a certain temperature, the plug 2 can be separated from a socket of the vehicle to be charged, so that charging of the vehicle to be charged is temporarily stopped, and a charging process of the vehicle to be charged can be automatically resumed after the temperature of the plug 2 is reduced. The second cylindrical section 19 is mainly used to provide an auxiliary function of a handle capable of grasping the charging gun, and the following description focuses on the content structure of the first cylindrical section 18.

As shown in fig. 1, a plurality of pistons 8 are circumferentially arranged in the first cylindrical section 18 near the second cylindrical section 19, a push plate 5 is arranged at a predetermined distance from the pistons 8, and a corrugated pipe 10 is communicated between the pistons 8 and the push plate 5. The structure of the piston 8 is explained below: the piston 8 comprises a piston cylinder 20 and a first push rod 7, a spring 9 is arranged in the piston cylinder, one end of the spring 9 is connected to the bottom inside the piston 8, one end of the spring 9 is connected to one end of the first push rod 7, and the other end of the first push rod 7 is fixedly connected with a buckle 6.

One end of the push plate 5 departing from the corrugated pipe 10 is connected with a second push rod 17 through a second connecting rod 12, the end of the second push rod 17 departing from the second connecting rod 12 is connected with a confirmation conductive column 21, and the connection confirmation conductive column 21 is used for confirming whether the new energy automobile to be charged is charging (the connection confirmation conductive column is prior art, and is not repeated here).

One end of the push plate 5, which is far away from the corrugated pipe 10, is fixedly connected with a first connecting rod 11, and the first connecting rod 11 extends into a sleeve fixed on the side wall of the inner cavity of the charging gun main body 1; the sleeve 22 comprises a sleeve base 15 and a sleeve wall 13, and an expansion alloy 14 is arranged inside the sleeve 22, wherein in an initial state, the expansion alloy 14 and the first connecting rod 11 are separated by a preset distance.

The middle position of the push plate 5 deviating from one end of the corrugated pipe 10 is connected with a plug 2, and the plug 2 is used for charging the new energy automobile.

In a further optimized scheme, a position, which is away from the second connecting rod 12 and close to the connection confirmation conductive column 21, of the second push rod 17 is provided with a limiting baffle 16, and the limiting baffle 16 is used for limiting the position of the connection confirmation conductive column 21.

In a further optimized scheme, a first embedded micro thermal sensor 3 and a second embedded micro thermal sensor 4 are arranged on the connection confirmation conducting column 21; the first embedded micro thermal sensor 3 and the second embedded micro thermal sensor 4 are used for monitoring the temperature at the position where the conductive post 21 is confirmed in connection, and sending the collected temperature data to a memory card inside the charging gun in real time (the memory card is not shown in fig. 1, and a connection wire between the first embedded micro thermal sensor 3 and the second embedded micro thermal sensor 4 and the memory card is also not shown, which is the prior art, and therefore is not described herein again).

In a further optimized scheme, the first embedded micro thermal sensor 3 and the second embedded micro thermal sensor 4 are installed in the measurement hole inside the connection confirmation conductive column 21.

In a further optimized scheme, the expansion alloy 14 is made of any one of iron-nickel-cobalt glass sealing alloy or ceramic sealing alloy.

In a further optimized scheme, the number of the pistons 8 is 4-6.

In a further optimized scheme, a grab handle is arranged on the second cylindrical section 19.

The working principle of the invention is as follows: need treat the new energy automobile who charges when charging, the manual work picks up the handle of 19 departments of second cylinder section, the rifle that will charge inserts in the new energy automobile's that treats charging the mouth, at the inserted in-process, buckle 6 and the internal face contact of the mouth that charges, internal face extrusion buckle 6, carry out and transmit first push rod 7 with the extrusion force, first push rod 7 compression spring 9, under the effect of spring 9's restoring force, buckle 6 and the internal face in close contact with of the mouth that charges, thereby the rifle that charges can insert firmly in new energy automobile's the mouth that charges. After charging for a period of time, the temperature at the plug 2 rises, exceed the threshold value, in the process of the temperature rise of the plug 2, the temperature of the expansion alloy 14 rises, the volume expands, and then the expansion alloy 14 gradually contacts with the first connecting rod 11, the expansion alloy 14 continues to expand, can produce the extrusion force to the first connecting rod 11, the relative motion of keeping away from the mouth that charges is made to the first connecting rod 11, thereby drive the push pedal 5 to keep away from the mouth that charges, finally the push pedal 5 drives the plug and separates with the socket in the mouth that charges, stop the charging process to the new energy automobile, then the temperature of the expansion alloy 14 reduces, the volume shrinks, finally the first connecting rod 11 resets, drive the push pedal 5 to reset, finally drive the plug 2 to reset, continue to charge the new energy automobile that charges, so on this cycle is reciprocal.

The charging device of the new energy automobile provided by the invention has an over-temperature protection function, and can automatically stop the charging process when the temperature of the plug 2 exceeds a threshold value in the charging process of the new energy automobile to be charged, and automatically recover the charging process after the temperature is recovered to be normal. Compare the rifle that charges in prior art can avoid to a great extent that the rifle plug temperature that charges is too high, and the heat accumulates and leads to socket and plug to appear the phenomenon of short circuit and take place.

It is to be understood that in the description of the present invention, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the purpose of convenience in describing the present invention, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.

Moreover, in this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.

Claims

1. The utility model provides a charging device of new energy automobile which characterized in that includes:

a charging gun body (1);

the charging gun main body (1) comprises a first cylindrical section (18) and a second cylindrical section (19) which are integrally formed;

a plurality of pistons (8) are circumferentially arranged in the first cylindrical section (18) close to the second cylindrical section (19), and push plates (5) are arranged at positions away from the pistons (8) by preset distances;

a corrugated pipe (10) is communicated between the piston (8) and the push plate (5);

the piston (8) comprises a piston cylinder (20) and a first push rod (7), a spring (9) is arranged in the piston cylinder (20), one end of the spring (9) is connected to the bottom end face of the interior of the piston (8), the other end of the spring (9) is connected to one end of the first push rod (7), and the other end of the first push rod (7) is fixedly connected with a buckle (6);

one end, deviating from the corrugated pipe (10), of the push plate (5) is fixedly connected with a second push rod (17) through a second connecting rod (12), the end, deviating from the second connecting rod (12), of the second push rod (17) is fixedly connected with a connection confirmation conductive column (21), and the connection confirmation conductive column (21) is used for confirming the charging state of the new energy automobile;

one end, deviating from the corrugated pipe (10), of the push plate (5) is fixedly connected with a first connecting rod (11), and the first connecting rod (11) extends into a sleeve fixed on the side wall of the inner cavity of the charging gun main body (1); the sleeve (22) comprises a sleeve base (15) and a sleeve wall (13), an expansion alloy (14) is arranged in the sleeve (22), and the expansion alloy (14) and the first connecting rod (11) are separated by a preset distance in an initial state;

the middle position of the push plate (5) deviating from one end of the corrugated pipe (10) is connected with a plug (2), and the plug (2) is used for charging the new energy automobile.

2. The charging device of the new energy automobile according to claim 1, wherein a limiting baffle (16) is arranged at a position where the second push rod (17) departs from the second connecting rod (12) and is close to the connection confirmation conducting post (21), and the limiting baffle (16) is used for limiting the position of the connection confirmation conducting post (21).

3. The charging device for the new energy automobile according to claim 1, wherein the connection confirmation conductive post (21) is provided with a first embedded micro thermal sensor (3) and a second embedded micro thermal sensor (4); the first embedded micro thermal sensor (3) and the second embedded micro thermal sensor (4) are used for monitoring the temperature at the connection confirmation conductive column (21).

4. The charging device for a new energy vehicle according to claim 3, wherein the first embedded micro thermal sensor (3) and the second embedded micro thermal sensor (4) are installed in the internal measuring hole of the connection confirmation conductive pillar (21).

5. The charging device for the new energy automobile according to claim 1, wherein the expansion alloy (14) is any one of a fe-ni-co glass sealing alloy or a ceramic sealing alloy.

6. The charging device for the new energy automobile according to claim 1, wherein the number of the pistons (8) is 4-6.

7. The charging device of the new energy automobile according to claim 1, wherein a handle is provided on the second cylindrical section (19).