阅读说明：本技术 一种防脱落式新能源汽车用充电枪 (Anti-drop formula new energy automobile is with rifle that charges ) 是由 储诚彬 于 2020-11-16 设计创作，主要内容包括：本发明公开了一种防脱落式新能源汽车用充电枪,包括充电枪本体,所述充电枪本体的侧壁开设有多个端子孔,且所述端子孔内设有充电端子,所述充电枪本体的侧壁固定连接有中空橡胶圈,所述充电枪本体的侧壁开设有储液槽,所述储液槽内填充有磁流变液,所述中空橡胶圈与储液槽通过导液管连通,所述储液槽内密封滑动连接有活塞,所述端子孔内安装有驱动活塞移动的驱动装置。本发明通过磁流变液挤入中空橡胶圈内,并使中空橡胶圈鼓起并形成接口内壁形状,可以使充电枪与接口完美匹配,并在接通电路后使电磁铁通电,流入中空橡胶圈在电磁铁磁场作用下形成固体,如此可使充电枪稳固的插在接口内,避免充电枪在充电过程中发生脱落。(The invention discloses an anti-drop charging gun for a new energy automobile, which comprises a charging gun body, wherein the side wall of the charging gun body is provided with a plurality of terminal holes, charging terminals are arranged in the terminal holes, the side wall of the charging gun body is fixedly connected with a hollow rubber ring, the side wall of the charging gun body is provided with a liquid storage tank, magnetorheological fluid is filled in the liquid storage tank, the hollow rubber ring is communicated with the liquid storage tank through a liquid guide pipe, a piston is connected in the liquid storage tank in a sealing and sliding manner, and a driving device for driving the piston to move is arranged in each terminal hole. The magnetorheological fluid is extruded into the hollow rubber ring, the hollow rubber ring is bulged and forms the shape of the inner wall of the interface, the charging gun can be perfectly matched with the interface, the electromagnet is electrified after a circuit is switched on, and the magnetorheological fluid flows into the hollow rubber ring to form a solid under the action of the magnetic field of the electromagnet, so that the charging gun can be stably inserted into the interface, and the charging gun is prevented from falling off in the charging process.)

1. An anti-drop charging gun for a new energy automobile comprises a charging gun body (1), a plurality of terminal holes (2) are arranged on the side wall of the charging gun body (1), a charging terminal (3) is arranged in each terminal hole (2), it is characterized in that the side wall of the charging gun body (1) is fixedly connected with a hollow rubber ring (4), a liquid storage tank (5) is arranged on the side wall of the charging gun body (1), magnetorheological fluid is filled in the liquid storage tank (5), the hollow rubber ring (4) is communicated with the liquid storage tank (5) through a liquid guide pipe (6), a piston (7) is connected in the liquid storage tank (5) in a sealing and sliding manner, a driving device for driving the piston (7) to move is installed in the terminal hole (2), an electromagnet (11) is installed on the charging gun body (1), and the electromagnet (11) is coupled in a charging circuit of the charging gun body (1).

2. The anti-drop charging gun for the new energy automobile as claimed in claim 1, wherein the driving device comprises a slip ring (8) slidably connected in the terminal hole (2), a telescopic air bag (9) is fixedly connected to a side wall of the slip ring (8), one end of the telescopic air bag (9) far away from the slip ring (8) is fixedly connected to the inner wall of the terminal hole (2), and the telescopic air bag (9) is communicated with the liquid storage tank (5) through an air duct (10).

3. The anti-drop formula charging gun for new energy automobile of claim 1 or 2, characterized in that a bar groove (101) has been seted up to the lateral wall of charging gun body (1), sealed rotation is connected with sleeve (12) in bar groove (101), sealed sliding connection has heat insulating plug (16) in sleeve (12), the lateral wall fixedly connected with ejector pin (17) of heat insulating plug (16), install the thrust unit that promotes heat insulating plug (16) and remove in bar groove (101).

4. The charging gun for the anti-drop new energy automobile according to claim 3, wherein the pushing device comprises two memory metal strips (13) fixedly connected to the inner wall of the strip-shaped groove (101), the sleeve (12) is filled with the evaporation liquid, a first heat conducting strip (14) is arranged inside the strip-shaped groove (101), a second heat conducting strip (15) is arranged on the side wall of the sleeve (12), and one end of the sleeve (12) close to the first heat conducting strip (14) is fixedly connected with the memory metal strips (13).

Technical Field

The invention relates to the technical field of new energy vehicles and related equipment, in particular to an anti-drop charging gun for a new energy vehicle.

Background

With the rapid development of new energy vehicles, charging equipment for new energy vehicles is also popular. When the new energy automobile charges at present, the rifle that charges need insert the interface that charges and charge. And because the rifle that charges of outdoor charging station and the interface that charges of different models car have certain cooperation difference, partly rifle that charges easily takes place to become flexible after inserting the interface that charges, leads to droing in the process of charging. Accordingly, the present application document provides an anti-drop formula charging gun for new energy automobile.

Disclosure of Invention

The invention aims to solve the defects in the prior art, and provides an anti-drop charging gun for a new energy automobile.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides an anti-drop formula new energy automobile is with rifle that charges, includes the rifle body that charges, a plurality of terminal holes have been seted up to the lateral wall of the rifle body that charges, just be equipped with the terminal that charges in the terminal hole, the lateral wall fixedly connected with cavity rubber circle of the rifle body that charges, the reservoir has been seted up to the lateral wall of the rifle body that charges, the reservoir intussuseption is filled with magnetorheological suspensions, cavity rubber circle passes through the catheter intercommunication with the reservoir, sealed sliding connection has the piston in the reservoir, install the drive arrangement that the drive piston removed in the terminal hole, install electromagnet on the rifle body that charges, just electromagnet coupling is in the charging circuit of the rifle body that charges.

Preferably, the driving device comprises a sliding ring which is slidably connected in the terminal hole, a telescopic air bag is fixedly connected to the side wall of the sliding ring, one end, far away from the sliding ring, of the telescopic air bag is fixedly connected to the inner wall of the terminal hole, and the telescopic air bag is communicated with the liquid storage tank through an air duct.

Preferably, the bar groove has been seted up to the lateral wall of rifle body that charges, the sealed rotation of bar inslot is connected with the sleeve, sealed sliding connection has the heat insulating plug in the sleeve, the lateral wall fixedly connected with ejector pin of heat insulating plug, the thrust unit that promotes the heat insulating plug and remove is installed to the bar inslot.

Preferably, thrust unit includes two memory metal strips of fixed connection on the bar inslot wall, the sleeve intussuseption is filled with the evaporating liquid, be equipped with first heat conduction strip on the bar inslot portion, be equipped with second heat conduction strip on the telescopic lateral wall, just the sleeve is close to the one end and the memory metal strip fixed connection of first heat conduction strip.

The invention has the following beneficial effects:

1. after the charging gun is inserted into the interface, magnetorheological fluid is extruded into the hollow rubber ring, the hollow rubber ring is bulged and forms the shape of the inner wall of the interface, the charging gun can be perfectly matched with the interface, the electromagnet is electrified after a circuit is switched on, and the magnetorheological fluid flows into the hollow rubber ring to form a solid under the action of the magnetic field of the electromagnet, so that the charging gun can be stably inserted into the interface, and the charging gun is prevented from falling off in the charging process;

2. through setting up parts such as sleeve, heat insulating plug, ejector pin and thrust unit, can take place to charge when unusual and lead to the rifle overheated, thrust unit pops out heat insulating plug and ejector pin, can break away from the interface rapidly with the rifle that charges, prevents to take place the dangerous condition.

Drawings

Fig. 1 is a schematic structural diagram according to a first embodiment of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

FIG. 3 is a schematic structural diagram of a second embodiment of the present invention;

FIG. 4 is an enlarged view of the structure at B in FIG. 3;

fig. 5 is an enlarged schematic view of the structure at B when the charging gun is overheated.

In the figure: the charging gun comprises a charging gun body 1, a strip-shaped groove 101, a terminal hole 2, a charging terminal 3, a hollow rubber ring 4, a liquid storage tank 5, a liquid guide pipe 6, a piston 7, a sliding ring 8, a telescopic air bag 9, a gas guide pipe 10, an electromagnet 11, a sleeve 12, a memory metal strip 13, a first heat conduction strip 14, a second heat conduction strip 15, a heat insulation plug 16 and a push rod 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to 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.

The first embodiment is as follows:

referring to fig. 1-2, a charging gun for anti-drop formula new energy automobile, including charging gun body 1, a plurality of terminal holes 2 have been seted up to the lateral wall of charging gun body 1, and be equipped with charging terminal 3 in the terminal hole 2, the lateral wall fixedly connected with cavity rubber circle 4 of charging gun body 1, reservoir 5 has been seted up to the lateral wall of charging gun body 1, the intussuseption of reservoir 5 intussuseption is filled with magnetorheological suspensions, cavity rubber circle 4 and reservoir 5 pass through catheter 6 intercommunication, sealed sliding connection has piston 7 in the reservoir 5, install the drive arrangement that drive piston 7 removed in the terminal hole 2, install electro-magnet 11 on the charging gun body 1, and electro-magnet 11 coupling is in the charging circuit of charging gun body 1.

Drive arrangement includes sliding ring 8 of sliding connection in terminal hole 2, and the lateral wall fixed connection of sliding ring 8 has flexible gasbag 9, and the one end fixed connection that slip ring 8 was kept away from to flexible gasbag 9 is on terminal hole 2 inner walls, communicates through air duct 10 between flexible gasbag 9 and the reservoir 5.

It should be noted that, during specific manufacturing, the terminal hole 2 may be set to be deeper, so that when the charging gun is inserted into the interface, the conductive terminal in the interface can push the slip ring 8 to move right to squeeze the magnetorheological fluid into the hollow rubber ring 4, and then contact the charging terminal 3 to electrify the electromagnet 11 to form the magnetorheological fluid into a solid, thereby preventing the magnetorheological fluid from forming a solid and being unable to flow due to the fact that the magnetorheological fluid forms a solid when the pilot circuit is energized.

When the device is used, when the charging gun body 1 is inserted into a charging interface, the conductive terminal in the charging interface is propped against the sliding ring 8, the sliding ring 8 is pushed towards the inside of the terminal hole 2, the telescopic air bag 9 can be compressed, air in the telescopic air bag is squeezed into the liquid storage tank 5, the piston 7 can be pushed to move right, magnetorheological fluid is squeezed into the hollow rubber ring 4 along the liquid guide pipe 6, the hollow rubber ring 4 is expanded until the outer wall of the hollow rubber ring 4 is contacted with the inner wall of the charging interface, so that the outer wall of the charging gun body 1 is perfectly matched with the inner wall of the interface, the electromagnet 11 is electrified during charging, under the action of the magnetic field of the electromagnet 11, the magnetorheological fluid in the hollow rubber ring 4 is in a solid state, so that the charging gun body 1 can be stably inserted into the interface, and the phenomenon that the charging gun is separated due to large matching difference between the charging gun and the interface, after charging, the charging gun body 1 is pulled out, the charging circuit is disconnected, the electromagnet 11 is synchronously powered off, magnetorheological fluid becomes liquid again, the telescopic air bag 9 is stretched and recovered under the action of self elasticity, and the piston 7 is pulled to move left for resetting, so that the magnetorheological fluid in the hollow rubber ring 4 is pumped back into the liquid storage tank 5.

Example two:

referring to fig. 3-5, the difference from the first embodiment is that a strip-shaped groove 101 is formed in a side wall of the charging gun body 1, a sleeve 12 is rotatably and hermetically connected in the strip-shaped groove 101, a circumferential outer wall of the sleeve 12 is in close contact with a circumferential inner wall of the strip-shaped groove 101, a heat insulation plug 16 is slidably and hermetically connected in the sleeve 12, a top rod 17 is fixedly connected to a side wall of the heat insulation plug 16, a pushing device for pushing the heat insulation plug 16 to move is installed in the strip-shaped groove 101, it should be noted that the sleeve 12 and the heat insulation plug 16 are both made of heat insulation materials such as vacuum heat insulation plates, and a heat insulation layer is also.

The pushing device comprises two memory metal strips 13 fixedly connected to the inner wall of the strip-shaped groove 101, and evaporation liquid is filled in the sleeve 12, specifically, the evaporation liquid can be alcohol or other liquid which is rapidly vaporized in a large amount at high temperature. The inside first heat conduction strip 14 that is equipped with of bar groove 101, be equipped with second heat conduction strip 15 on the lateral wall of sleeve 12, as shown in fig. 4, the both sides wall of first heat conduction strip 14 sets up terminal hole 2 and bar groove 101 respectively, the both sides of second heat conduction strip 15 set up respectively at sleeve 12 inside and outside wall, first heat conduction strip 14 and second heat conduction strip 15 can adopt metal material that heat conduction is good such as copper, and sleeve 12 is close to the one end of first heat conduction strip 14 and memory metal strip 13 fixed connection, memory metal strip 13 can adopt two-way memory alloy, be straight form under normal temperature, and the deformation is the cross form when higher temperature, and can make sleeve 12 rotate certain angle.

As shown in fig. 4, the first heat conduction bars 14 are offset from the sleeve 12 by a predetermined distance, so that the first heat conduction bars 14 can contact with the air in the bar-shaped groove 101 to transfer heat to the memory metal bar 13, and the circumferential outer wall of the sleeve 12 is in close contact with the circumferential inner wall of the bar-shaped groove 101, so that heat cannot be transferred to the second heat conduction bars 15 through the air and introduced into the sleeve 12.

In this embodiment, in the normal charging state, the temperature is low and does not rise to the deformation point of the memory metal strip 13, and the memory metal strip 13 is in a straight state, as shown in fig. 4, at this time, the first heat conducting strip 14 and the second heat conducting strip 15 are not in contact, and the heat cannot be transferred into the sleeve 12 under the action of the heat insulating material. When the temperature rises to the deformation point of the memory metal strips 13 due to abnormal charging, the two memory metal strips 13 are deformed to form a cross shape as shown in fig. 5, the sleeve 12 is rotated by a certain angle, the first heat conduction strips 14 are contacted with the second heat conduction strips 15, the heat in the terminal hole 2 can be transferred into the sleeve 12 through the first heat conduction strips 14 and the second heat conduction strips 15, the evaporating liquid in the sleeve 12 is quickly vaporized and evaporated in a large quantity at a high temperature, the heat insulation plugs 16 and the ejector rods 17 are pushed to quickly eject outwards, the ejected ejector rods 17 push the inner wall of the interface, a reaction force can be applied to the charging gun, and therefore, the charging gun can be quickly separated from the interface when the temperature rises due to abnormal charging, and dangerous situations such as short circuit are prevented.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention should be covered by the scope of the present invention.