CN214313732U

CN214313732U - Electric vehicle charging plug and socket assembly

Info

Publication number: CN214313732U
Application number: CN202023260099.9U
Authority: CN
Inventors: 刘迪锋
Original assignee: Shenzhen Xinhailin Electronic Technology Co ltd
Current assignee: Shenzhen Xinhailin Electronic Technology Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-09-28
Anticipated expiration: 2030-12-30

Abstract

The utility model discloses an electric motor car charging plug socket subassembly, including plug subassembly and locking subassembly, plug subassembly includes the casing, PIN needle group, the fixed block of fixed PIN needle group, connector and conductor wire, the locking subassembly includes locking switch and compression switch, locking switch is rotatable to be installed on plug subassembly's casing, conductor wire and conducting strip in the compression switch connecting plug subassembly, outside cable is connected to the conducting strip, only when putting locking switch to assigned position, compression switch just can put conducting strip and conductor wire through, in addition, the compression switch inner chamber is equipped with the isolation chamber of keeping apart conductor wire and conducting strip contact, electric arc has been prevented and has produced, has fine security performance.

Description

Electric vehicle charging plug and socket assembly

Technical Field

The utility model relates to an electric motor car charging plug socket subassembly belongs to cable wire rod technical field.

Background

Along with the popularization of electric motor cars, charging equipment and charging equipment accessories have been newly innovated, the charging plug is one of indispensable product in the charging equipment, be the instrument of connecting consumer and power, consider whether qualified, except basic power supply function, more still be the security, because consider the security, prevent to produce electric arc at the twinkling of an eye of circular telegram, so the charging plug on the market has adopted locking structure, carry out circular telegram again after the connection is confirmed, it is more common to adopt contact switch, press the trigger switch-on, but this kind of locking structure only needs one to press can, the security performance is still not enough, the condition that has the mistake to touch takes place, in addition, discover in practice, even having adopted locking mechanism, because inside detail handles imperfectly, the product still has the emergence of electric arc condition.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned problem that prior art exists, the utility model aims to provide an electric motor car charging plug socket subassembly has optimized the point structure through twice locking structure, has prevented the production of electric arc, improves the security performance of product.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme:

a charging plug and socket assembly of an electric vehicle comprises a plug assembly and a locking assembly, wherein the plug assembly comprises a shell, a PIN needle group, a fixed block for fixing the PIN needle group, a connector and a conductor wire, the PIN needle group is inserted on the fixed block, the fixed block is hinged with the connector, the conductor wire penetrates through the connector to be communicated with the PIN needle group, the shell comprises a shell I nested on the outer wall of the connector and a shell II hinged with the shell I, bosses are symmetrically arranged on two sides of the edge of the shell I, which is contacted with the shell II, on the boss, hole sites I are arranged, the shell II is provided with hole sites II corresponding to the bosses on the shell I, the top of the shell II is provided with hole sites III and buckles, the locking assembly comprises a locking switch and a pressing switch, the locking switch is rotatably arranged on the shell of the plug assembly, a boss I and a boss II for rotation are respectively arranged at the connecting positions of the shell I and the shell II, the boss I is arranged in the hole sites I, protruding II is installed in hole site II, still be equipped with control pressfitting switch on the locking switch horizontal pole I and with buckle complex horizontal pole II, pressfitting switch includes the dustcoat, the button, spring and pressfitting piece, the dustcoat bottom articulates on the connector, pressfitting piece is articulated with the button, the spring nestification is in pressfitting piece outer wall and contradicts the locating part on the connector bottom, pressfitting piece is located conductor wire upper portion and not contact, the button passes II hole sites III at top of casing and exposes, the conducting strip is located between conductor wire and the pressfitting piece without contacting, outside cable is connected to the conducting strip.

Preferably, the locating part on the bottom of the connector is an integrally formed arc-shaped protruding structure and forms a closed isolation chamber together with the compression switch outer cover, the bottom of the isolation chamber is a through hole for connecting a conducting wire, the spring abutting position is the edge position of the top of the isolation chamber, the top edge of the isolation chamber plays a limiting role, the spring compression drives the compression sheet to move up and down, and when the spring is pressed to the bottom, the compression sheet can press the conducting sheet until the conducting sheet is contacted with the conducting wire.

More preferably, the isolation chamber surrounds the conductive wire, the pressing sheet and the conductive sheet, the contact position after pressing is located in the isolation chamber, the isolation chamber plays a role of a protective cover, and when the conductive wire, the pressing sheet and the conductive sheet are in mutual contact, once an electric arc is generated, the isolation chamber can be isolated, and the outside cannot be influenced.

More preferably, the outer wall of the isolation chamber is made of LCP material, and has more excellent heat resistance and arc resistance.

Preferably, the terminals of the pressing pieces are of circular arc structures, the positions of the conducting pieces and the pressing pieces to be contacted are also of circular arc shapes, and the situation that point discharge arcs is generated when the contacts are contacted or disconnected is avoided.

Preferably, the positions of the conductive sheet, the laminating sheet and the conductive wire to be contacted adopt phosphor bronze materials and are provided with silver oxide coatings, so that the probability of arc discharge is reduced.

Preferably, the hole site I arranged on the boss on the shell I is a hole site structure with a circular arc track, the hole site I is matched with the boss on the locking switch to form a first locking structure, and the second locking structure is generated by matching a buckle on the shell II with an upper cross rod II of the locking switch.

More preferably, the circle center of the track of the circular arc hole site I is the same as that of the hole site II, so that the pressing switch can generate upward displacement to form locking when pressed.

Preferably, the outer wall of the shell II is coated with the plastic, so that the inner film and the outer film of the plug are prevented from falling off, the isolation chamber is in an anoxic state, and the capacity of generating electric arcs is weakened.

Compared with the prior art, the beneficial effects of the utility model are that: through two locking structures, the safety of the plug during power-on is improved, an isolation chamber is arranged at the position of an internal contact, contact electric arcs are effectively blocked, detail processing is also adopted at the position of the contact, the condition of point discharge arc discharge is avoided when the arc-shaped contact is contacted or disconnected, in addition, in the aspect of material, the outer wall of the isolation chamber is made of LCP (liquid Crystal Polymer) materials, the isolation chamber has better heat resistance and arc resistance, the positions, to be contacted, of the conducting sheet, the pressing sheet and the conducting wire are made of phosphor bronze materials, silver oxide coatings are arranged, the probability of arc discharge is reduced, the outer wall of a shell II is made of nylon coated plastics, the inner membrane and the outer membrane of the plug are prevented from falling off, the isolation chamber is in an anoxic state, and the capacity of electric arcs is weakened.

Drawings

Fig. 1 is a schematic structural diagram of a preferred embodiment of an electric vehicle charging plug and socket assembly provided by the present invention;

fig. 2 is an exploded pictorial illustration of a preferred embodiment of an electric vehicle charging plug and socket assembly provided by the present invention;

fig. 3 is a schematic diagram of a locking switch of a preferred embodiment of the electric vehicle charging plug and socket assembly provided by the present invention;

fig. 4 is a schematic cross-sectional view of an isolation chamber of a preferred embodiment of the electric vehicle charging plug and socket assembly provided by the present invention.

Detailed Description

The invention will now be described more fully hereinafter with reference to the accompanying drawings and preferred embodiments.

Fig. 1-4 are schematic views illustrating a preferred embodiment of an electric vehicle charging plug and socket assembly provided by the present invention. As shown in fig. 1-4, the electric vehicle charging plug and socket assembly comprises a plug assembly 1 and a locking assembly 2, the plug assembly 1 comprises a housing 101, a PIN group 102, a fixing block 103 for fixing the PIN group 102, a connector 104 and a conducting wire 105, the PIN group 102 is inserted into the fixing block 103, the fixing block 103 is hinged to the connector 104, the conducting wire 105 passes through the connector 104 to be connected with the PIN group 102, the housing 101 comprises a housing i 106 nested on the outer wall of the connector 104 and a housing ii 107 hinged to the housing i 106, bosses 108 are symmetrically arranged on the housing i 106 at two sides of the edge contacting with the housing ii 107, hole sites i 109 are arranged on the bosses 108, hole sites ii 110 are arranged on the housing ii 107 corresponding to the bosses 108 on the housing i 106, hole sites iii 111 and buckles 112 are arranged on the top of the housing ii 107, the locking assembly 2 comprises a locking switch 201 and a press fit switch 202, the locking switch 201 is rotatably mounted on the housing 101 of the plug assembly 1, the connection positions of the shell I106 and the shell II 107 are respectively provided with a protrusion I203 and a protrusion II 204 for rotation, the protrusion I203 is arranged in a hole I109, the protrusion II 204 is arranged in a hole II 110, the locking switch 201 is further provided with a cross bar I205 for controlling the press switch 202 and a cross bar II 206 matched with the buckle 112, the press switch 202 comprises an outer cover 207, a button 208, a spring 209 and a press sheet 210, the bottom of the outer cover 207 is hinged on the connector 104, the press sheet 210 is hinged with the button 208, the spring 209 is nested on the outer wall of the press sheet 210 and abutted against a limiting part 113 on the bottom of the connector 104, the press sheet 210 is positioned on the upper part of the conductive wire 105 and is not contacted, the button 208 penetrates through the hole III 111 on the top of the shell II 107 and is exposed, the conductive sheet 3 is not contacted between the conductive wire 105 and the press sheet 210, and the conductive sheet 3 is connected with an external cable.

It is worth noting that: the limiting member 113 on the bottom of the connector 104 is an integrally formed arc-shaped protruding structure and forms a closed isolation chamber 114 together with the housing 207 of the press switch 202, the bottom of the isolation chamber 114 is a through hole for connecting the conductive wire 105, the abutting position of the spring 209 is the edge position of the top of the isolation chamber 114, the isolation chamber 114 surrounds the conductive wire 105, the press sheet 210 and the conductive sheet 3, the contact position after press bonding is located in the isolation chamber 114, the outer wall of the isolation chamber 114 is made of LCP (liquid Crystal Polymer) material, the terminal of the press sheet 210 is in an arc-shaped structure, the positions of the conductive sheet 3 to be contacted with the press sheet 210 and the conductive wire 105 are also in an arc shape, the positions of the conductive sheet 3 to be contacted with the press sheet 210 and the conductive wire 105 are made of phosphor bronze and provided with silver oxide coatings, the hole site I109 arranged on the boss 108 on the housing I106 is in an arc-shaped track structure, the track center of the arc-shaped hole site I109 is the same as the center of the arc-shaped hole site II 110, the outer wall of the shell II 107 is coated with plastic by adopting nylon.

In the implementation process, firstly, the PIN needle group is inserted into the charging equipment, when the locking switch is at an initial position, the protrusion I is located at the bottommost part of the hole site I, the protrusion II on the locking switch rotates around the hole site II on the outer wall of the shell II, because the hole site I arranged on the boss on the shell I is of a hole site structure with an arc track, the circle center of the track of the arc hole site I is the same as that of the hole site II, the protrusion I can slide around the hole site II in the arc hole site I, at the moment, the cross rod I can gradually approach to a button on the pressing switch, the cross rod II gradually approaches to a buckle on the shell II, when the protrusion I is abutted to the top of the hole site I and the stroke is moved, at the moment, the cross rod II is clamped and fixed with the buckle, so that the cross rod I is pressed to the button, the spring bottom of the pressing switch is contacted with the edge of the isolation chamber, when the button is pressed, the spring can be downwards extruded to drive the pressing sheet to move downwards, when the locking switch rotates to the bottom, the pressing sheet can make the conducting sheet contact with the conducting wire to form electrification, and the contact position is just positioned in the isolation chamber.

Finally, it must be said here that: the above embodiments are only used for further detailed description of the technical solutions of the present invention, and should not be understood as limiting the scope of the present invention, and the modifications and adjustments made by those skilled in the art according to the above-mentioned contents of the present invention are all included in the scope of the present invention.

Claims

1. The utility model provides an electric motor car plug and socket subassembly that charges, includes plug subassembly and locking subassembly, plug subassembly includes fixed block, connector and the conductor wire of casing, PIN needle group, fixed PIN needle group, and PIN needle group pegs graft on the fixed block, and the fixed block is articulated with the connector, and the conductor wire passes connector and PIN needle group switch-on, its characterized in that: the shell comprises a shell I nested on the outer wall of the connector and a shell II hinged with the shell I, bosses are symmetrically arranged on two sides of the edge of the shell I, which is contacted with the shell II, hole sites I are arranged on the bosses, hole sites II are arranged on the shell II, which are corresponding to the bosses on the shell I, hole sites III and buckles are arranged on the top of the shell II, the locking component comprises a locking switch and a pressing switch, the locking switch is rotatably arranged on the shell of the plug component, a boss I and a boss II for rotation are respectively arranged at the connecting positions of the shell I and the shell II, the boss I is arranged in the hole site I, the boss II is arranged in the hole site II, a cross rod I for controlling the pressing switch and a cross rod II matched with the buckles are also arranged on the locking switch, the pressing switch comprises an outer cover, a button, a spring and a pressing sheet, the bottom of the outer cover is hinged on the connector, the pressing sheet is hinged with the button, the spring is nested on the outer wall of the pressing sheet and abuts against a limiting part on the bottom of the connector, the pressing sheet is located on the upper portion of the conducting wire and is not in contact with the conducting wire, the button penetrates through the hole position III in the top of the shell II and is exposed out of the hole position III, the conducting sheet is located between the conducting wire and the pressing sheet in an untouched mode, and the conducting sheet is connected with an external cable.

2. The electric vehicle charging plug and socket assembly of claim 1, wherein: the limiting part on the bottom of the connector is an integrally formed arc-shaped protruding structure and forms a closed isolation chamber together with the press-fit switch outer cover, the bottom of the isolation chamber is a through hole connected with a conductor wire, and the abutting position of the spring is the edge position of the top of the isolation chamber.

3. The electric vehicle charging plug and socket assembly of claim 2, wherein: the isolating chamber surrounds the conducting wire, the pressing sheet and the conducting sheet, and the contact position after pressing is located in the isolating chamber.

4. A charging plug and socket assembly for an electric vehicle as defined in claim 3, wherein: the outer wall of the isolation chamber is made of LCP material.

5. The electric vehicle charging plug and socket assembly of claim 1, wherein: the terminal of the pressing sheet is of an arc-shaped structure, and the position of the conducting sheet to be contacted with the pressing sheet is also of an arc shape.

6. The electric vehicle charging plug and socket assembly of claim 1, wherein: the positions of the conductive sheet, the laminating sheet and the conductive wire to be contacted adopt phosphor bronze materials and are provided with silver oxide coatings.

7. The electric vehicle charging plug and socket assembly of claim 1, wherein: a hole site I arranged on a boss on a shell I is of a hole site structure with an arc-shaped track.

8. The electric vehicle charging plug and socket assembly of claim 7, wherein: the circle center of the track of the circular arc hole site I is the same as that of the hole site II.

9. The electric vehicle charging plug and socket assembly of claim 1, wherein: the outer wall of the shell II is coated with plastic by adopting nylon.