CN212366273U

CN212366273U - Fill electric pile's elasticity crimping formula electric connector

Info

Publication number: CN212366273U
Application number: CN202020878283.0U
Authority: CN
Inventors: 曹孝培
Original assignee: Shaoguan Fangsheng Electric Equipment Co ltd
Current assignee: Shaoguan Fangsheng Electric Equipment Co ltd
Priority date: 2020-05-05
Filing date: 2020-05-22
Publication date: 2021-01-15
Anticipated expiration: 2030-05-22
Also published as: CN212984779U; CN212271747U; CN212336849U; CN111561201A; CN111535635A; CN111535638A; CN212957871U; CN111535637A; CN212478702U; CN111561202A; CN212249410U; CN111550101A; CN212507626U; CN212957870U; CN111550102A; CN212428245U; CN212478703U; CN111535636A; CN212439782U; CN111535634A

Abstract

The utility model relates to an elastic force compression joint type electric connector, an elastic force compression joint type electric connector of a charging pile, which is characterized by comprising a wiring device; the wiring device comprises a first electrode, a spring and a hard body, wherein the first electrode is connected with the hard body through the spring. The utility model discloses a spring can provide great elasticity, guarantee first electrode and connect the electric object to laminate closely to guarantee electric connection's reliability.

Description

Fill electric pile's elasticity crimping formula electric connector

Technical Field

The utility model relates to an elasticity crimping formula electric connector.

Background

With the development and progress of society, new energy vehicles such as electric vehicles and the like are more and more popularized. Among them, the number of electric vehicles driven by electric energy is increasing year by year due to the environmental protection requirement.

When the energy of new energy vehicles such as electric vehicles is consumed to a certain extent or exhausted, the new energy vehicles such as electric vehicles generally need to be charged through the connection of the output end (i.e. charging gun) of the charging pile. In order to increase the turnover rate of new energy vehicles such as electric vehicles and shorten the time when the new energy vehicles such as electric vehicles cannot be used during charging, the current technical trend is to charge the new energy vehicles such as electric vehicles by adopting larger current. Correspondingly, higher requirements are put forward on the charging reliability of new energy vehicles such as electric vehicles and the like.

The charging mode of new energy vehicles such as electric vehicles and the like needs to be improved.

SUMMERY OF THE UTILITY MODEL

For solving one or more among the above-mentioned problem, the utility model aims to provide an elasticity crimping formula electric connector, the spring can provide great elasticity, guarantee first electrode and connect the electric object to laminate closely to guarantee electric connection's reliability.

The utility model discloses the detailed technical scheme who takes does: an elastic compression joint type electric connector of a charging pile is characterized by comprising a wiring device; the wiring device comprises a first electrode, a spring and a hard body, wherein the first electrode is connected with the hard body through the spring.

Further, the wiring device includes a first electrode group; the first electrode group comprises a hard body provided with a containing cavity; the first electrode group also comprises a first electrode inserted into the accommodating cavity and a spring; the first electrode is inserted into the accommodating cavity, and one end of the first electrode is exposed out of the hard body; the spring is respectively connected with the hard body and the first electrode.

Furthermore, the first electrode extends outwards to form a limiting body, two ends of the spring respectively support against the limiting body and the inner wall of the accommodating cavity, and the limiting body supports against the inner wall of the accommodating cavity.

Furthermore, the number of the first electrodes is more than two, the hard body comprises a fixing plate, and the fixing plate is the inner wall of the accommodating cavity and is fixedly connected with the hard body.

Further, first electrode group still includes isolation assembly, and isolation assembly includes insulating isolation pad, and the spring housing is established at first electrode, and the isolation pad setting is between the end of spring, the inner wall of spacing body.

Furthermore, the isolation assembly further comprises a flexible and insulating isolation sleeve, and the isolation sleeve is sleeved on the first electrode and located between the spring and the first electrode.

Furthermore, the isolation pad is fixedly provided with a connecting bulge, and two ends of the isolation sleeve are respectively embedded into the isolation pad.

Furthermore, the wiring device further comprises a second electrode group, the second electrode group further comprises second electrodes, the second electrode group comprises hard bodies provided with the second electrodes, and the second electrodes can be respectively opposite to the first electrodes.

Further, the hard body is provided with and holds the chamber, and the second electrode outwards extends and forms the spacing body, and the jump ring groove has been seted up to the second electrode, and the jump ring card is gone into the jump ring groove, jump ring, spacing body centre gripping hard body.

The technical scheme has the following advantages or beneficial effects:

1) the spring can provide larger elastic force and ensure that the first electrode is tightly attached to the connected object, so that the reliability of electrical connection is ensured;

2) the spring can be prevented from being heated and fused or losing elasticity when being electrified, and the function of the spring is ensured not to be influenced by the electrification, so that the phenomenon of poor contact caused by the weakening of the elasticity of the spring can be avoided;

3) the assembly efficiency of the first electrode group can be made high.

Drawings

Fig. 1 is a schematic perspective view of a half-section of a first electrode 1 according to an embodiment of the present invention.

Fig. 2 is a perspective view of the hard body 2 according to an embodiment of the present invention.

Fig. 3 is a schematic perspective view of a half-section of an improved structure of an electric connector electrode of a charging pile according to an embodiment (embodiment one) of the present invention.

Fig. 4 is a schematic half-section view of an electrical connector structure of a charging pile according to an embodiment (embodiment one) of the present invention, where the section is perpendicular to fig. 3.

Fig. 5 is a schematic perspective view of an electrical connector structure of a charging pile according to another embodiment (embodiment two) of the present invention.

Fig. 6 is a perspective view of a hard body 2 according to still another embodiment (third embodiment) of the present invention.

Fig. 7 is a schematic perspective view of a hard body 2 according to still another embodiment (third embodiment) of the present invention in half section.

Fig. 8 is a schematic side view of an electrical connector structure of a charging pile according to still another embodiment (embodiment three).

Fig. 9 is a front view schematically illustrating an electrical connector structure of a charging pile according to another embodiment (embodiment four) of the present invention.

Fig. 10 is an exploded side view of an electrical connector electrode structure of a charging post according to an embodiment (embodiment five) of the present invention; the hard body 2 is not shown.

Fig. 11 is a schematic perspective view of a half-section of an insulating sheath 331 according to an embodiment (embodiment five) of the present invention.

Fig. 12 is a schematic perspective view of an isolation pad 332 according to an embodiment (embodiment five) of the present invention.

Fig. 13 is a schematic perspective view of the snap spring 141 according to an embodiment (embodiment five) of the present invention.

Fig. 14 is a perspective view of the hard body 2 according to an embodiment (embodiment five) of the present invention.

Fig. 15 is a schematic perspective view of the hard body 2 according to an embodiment (embodiment five) of the present invention; the fixing plate 25 is not shown.

Fig. 16 is a schematic side view of an electrical connector electrode structure of a charging post according to an embodiment (embodiment five) of the present invention; the hard body 2 is not shown.

Fig. 17 is a block diagram of the power supply device 4 according to an embodiment (sixth embodiment) of the present invention.

Fig. 18 is a block diagram of the power supply device 4 according to an embodiment (seventh embodiment) of the present invention.

A first electrode 1; a wiring hole 12; a holding hole 13; a threaded section 131; a fixed section 132; a stopper body 14; a clamp spring 141; a clamp spring slot 142; a contact end 19; a hard body 2; the accommodating space 21; a stopper wall 211; a threading hole 22; an operation port 23; a movable plate 24; a fixed plate 25; a wiring device 3; a first electrode group 31; a first electrode 311; an elastic member 312; a second electrode group 32; the second electrode 321; an isolation component 33; an insulating sleeve 331; the insulating pad 332; the coupling projection 333; a power supply device 4; an input section 41; a live line 411; a neutral line 412; a ground line 413; a safety device 414; a charging pile 42; an output unit 43; a contactor 44; an electric wire W1; new energy vehicle W2.

Detailed Description

The technical solution of the present invention will be described below with reference to the accompanying drawings of the embodiments of the present invention.

The first embodiment.

Fill electric pile's electric connector electrode and improve structure, including the carrier and set up on the carrier (the attached drawing does not mark) touch electrically conductive first electrode 1 and second electrode (the attached drawing does not mark) each other, still include the elastic insulator, the elastic insulator offsets or is close with first electrode 1 and carrier respectively to when making first electrode 1 touch mutually with the second electrode, first electrode 1 has elasticity.

Fill electric pile's electric connector electrode and improve structure, including first electrode 1 and be provided with hard body 2 of accommodation space 21. Usually, the hard bodies 2 have insulation properties. Typically, the first electrode 1 is made of an electrically conductive material, such as brass or the like.

The first electrode 1 extends outwards to form a limiting body 14, the first electrode 1 is inserted into the accommodating space 21, and the limiting body 14 is exposed from the hard body 2 (i.e. the contact end 19).

The hard body 2 has elasticity. For example, the hard body 2 is made of rubber. The hardness of the hard body 2 is twenty degrees to eighty degrees, preferably forty degrees.

The spacing body 14 has a portion which, viewed along the first electrode 1, extends beyond the receiving space 21.

The working principle is as follows: before use, the first electrode 1 is electrically connected to the wire W1.

When in use, the hard body 2 is close to the object to be connected (not shown in the drawing, usually, the electrode modification structure of the electric connector of another charging pile is also a conductor electrically connected with the electric wire W1) until the contact end 19 is contacted with the object to be connected; the hard body 2 is continuously moved, the first electrode 1 moves along the accommodating space 21, and the hard body 2 is continuously moved until the limiting body 14 abuts against the hard body 2 to enable the hard body 2 to be elastically deformed; the position of the rigid bodies 2 is maintained (either by hand or by other conventional retaining structures such as snaps or the like). The elasticity provided by the hard body 2 can ensure that the contact end 19 is tightly attached to the object to be connected, thereby ensuring the reliability of the electrical connection.

Preferably, the first electrode 1 is attached to the inner wall of the accommodating space 21; to ensure that the first electrode 1 does not wobble within the receiving space 21.

Preferably, the cross section of the first electrode 1 and the cross section of the hard body 2 are both circular, and the cross section of the stopper 14 is annular.

Further, the first electrode 1 is provided with a wiring hole 12, the other end of the first electrode 1 (i.e. the other end of the contact end 19) is provided with a holding hole 13 communicated with the wiring hole 12, and the holding hole 13 includes a threaded section 131. The first electrode 1 and the wire W1 are electrically connected by inserting the wire W1 into the wire connection hole 12, and then screwing a bolt (not shown) into the threaded section 131 to abut against the wire W1, so that the first electrode 1 and the wire W1 are electrically connected.

Furthermore, the side wall of the hard body 2 is provided with a threading hole 22 communicated with the accommodating space 21, and the threading hole 22 is over against the wiring hole 12, namely, the wiring hole 12 is completely positioned in the threading hole 22 when viewed along the wiring hole 12. After the wire W1 is inserted into the wire connecting hole 12 through the threading hole 22, the wire W1 can be fixed to the first electrode 1, and the wire W1 is not clamped by the first electrode 1 and the inner wall of the accommodating space 21 and is not easy to move, so that the risk of the wire W1 falling off from the first electrode 1 can be eliminated or reduced.

Preferably, the threading hole 22 is a long hole and is tangent to the wiring hole 12. When the hard body 2 is elastically deformed, the inner wall of the wire insertion hole 22 does not abut against the electric wire W1, and the risk of the electric wire W1 falling off from the first electrode 1 can be eliminated or reduced.

Further, the receiving space 21 extends to form an operation opening 23 opposite to the threaded section 131, i.e. the threaded section 131 is located completely within the operation opening 23 as seen along the first electrode 1. After the electric wire W1 is inserted into the wiring hole 12 through the threading hole 22, the bolt can be screwed into the threaded section 131 from the operation opening 23, so that the first electrode 1 and the electric wire W1 can be electrically connected.

Further, the abutting hole 13 further includes a fixing section 132, and the fixing section 132 and the threaded section 131 are respectively located at two sides of the wire connecting hole 12. Typically, the fixed segment 132 is formed for a fabrication aperture. The bolt abuts against the electric wire W1, bends the electric wire W1, and inserts the electric wire W1 into the fixing segment 132, thereby improving the connection strength between the first electrode 1 and the electric wire W1.

Preferably, the cross section of the first electrode 1 is non-circular (the cross section of the first electrode 1 is non-circular, and the drawing is not shown); such as rectangular, square, oval, etc., other than circular. The first electrode 1 can be prevented from rotating in the accommodating space 21, so that the inner wall of the threading hole 22 does not abut against the wire W1, and the risk that the wire W1 falls off from the first electrode 1 can be eliminated or reduced.

Preferably, the wiring holes 12 penetrate the first electrode 1, and the number of the threading holes 22 is two. The input portion 41 enables wiring through the wiring hole 12, further reducing the risk of the electric wire W1 falling off from the first electrode 1.

Example two.

The electric connector structure of the charging pile comprises a first electrode 1 and a hard body 2 provided with an accommodating space 21, wherein the first electrode 1 extends outwards to form a limiting body 14, the first electrode 1 is inserted into the accommodating space 21, and the limiting body 14 is exposed from the hard body 2 (namely a contact end 19); the hard body 2 has elasticity.

A hard movable plate 24 is arranged between the limiting body 14 and the hard body 2,

the movable plate 24 extends beyond the hard body 2 or coincides with the hard body 2, seen along the first electrode 1. The movable plate 24 is typically made of hard, insulating material such as ABS plastic, bakelite, etc.

When in use, the hard body 2 is close to the object to be connected (not shown in the drawing, usually an electric connector structure of another charging pile, which can also be a conductor electrically connected with the electric wire W1) until the contact end 19 contacts with the object to be connected; the hard body 2 is continuously moved, the first electrode 1 moves along the accommodating space 21, and the hard body 2 is continuously moved until the limiting body 14 abuts against the movable plate 24, the movable plate 24 uniformly (due to the large contact area) abuts against the hard body 2, and the hard body 2 is uniformly elastically deformed; the position of the rigid bodies 2 is maintained (either by hand or by other conventional retaining structures such as snaps or the like). The hard body 2 provides uniform elasticity, which can ensure that the contact end 19 is tightly attached to the object to be connected, thereby ensuring the reliability of the electrical connection.

Further, the hard body 2 further includes a hard fixing plate 25, and the fixing plate 25 is fixedly connected to the other end (the other end at the end where the movable plate 24 is located) of the hard body 2, for example, by bonding or the like in a conventional manner. The fixing plate 25 is usually made of hard insulating material such as ABS plastic, bakelite, etc. Usually, the fixing plate 25 is provided with a hole facing the operation opening 23; so as not to obstruct the operation port 23. The two ends of the hard body 2 can be uniformly propped against each other, so that the hard body 2 is uniformly in elastic shape, and the reliability of electrical connection is further ensured.

Preferably, the number of the first electrodes 1 and the accommodating space 21 is two or more, and the first electrodes 1 are inserted into the hard bodies 2, respectively. With first electrode 1 respectively with electric wire W1 electric connection, can make the electric connector structure of filling electric pile pass through great electric current in, can reduce eddy current loss, relatively energy-conserving.

Further, the movable plates 24 are integrally connected, and the fixed plates 25 are integrally connected. When the position-limiting body 14 abuts against the movable plate 24 and the movable plate 24 abuts against the hard body 2, the movable plate 24 can make each first electrode 1 be linked, so as to ensure that the abutting force between the connected objects of each first electrode 1 is uniform.

Example three.

Fill electric pile's electric connector structure, hard body 2 are more than two rows, and each hard body 2 connects as an organic whole.

Furthermore, the side wall of the hard body 2 is provided with a threading hole 22 communicated with the accommodating space 21, the threading hole 22 is over against the wiring hole 12, namely, the wiring hole 12 is completely positioned in the threading hole 22 when viewed along the wiring hole 12, and the threading hole 22 is exposed from two sides of the hard body 2 respectively. Both sides of the hard body 2 can be inserted with wires W1 for wiring, which is convenient.

Further, the cross section of the connected hard bodies 2 is a rotationally symmetrical figure, such as a rectangle, a circle, an ellipse, a regular hexagon, and the like. After the hard body 2 rotates one hundred eighty degrees, wires W1 can be inserted from two sides of the hard body 2 for wiring respectively, and the front and the back of the hard body 2 do not need to be distinguished, so that the hard body is convenient to use.

Furthermore, the movable plate 24 and the fixed plate 25 are respectively fixedly connected with and overlapped with two ends of the hard body 2, that is, the cross section of the movable plate 24 and the cross section of the fixed plate 25 are both overlapped with the cross section of the hard body 2.

Example four.

Fill electric pile's electric connector structure, stereoplasm 2 is two. With first electrode 1 respectively with electric wire W1 electric connection, do not have the stereoplasm 2 that the centre was listed as in the middle of two lists of stereoplasm 2 (the both sides of the stereoplasm 2 that the centre was listed as are difficult to the wiring because stereoplasm 2 blocks), when being convenient for be connected first electrode 1 and electric wire W1, when can making the electric connector structure of filling electric pile pass through great electric current, can reduce eddy current loss, relatively energy-conservation.

Example five.

In the electric connector structure of the charging pile, the first electrode group 31 includes a hard body 2 provided with a housing space 21. Usually, the hard body 2 is made of hard insulating material such as ABS plastic or bakelite.

The first electrode group 31 further includes a first electrode 311 inserted into the receiving space 21 and an elastic member 312.

The first electrode 311 is inserted into the accommodation space 21 and has one end exposed from the hard body 2.

The elastic element 312 is connected to the hard body 2 and the first electrode 311, and the elastic element 312 provides an elastic force to make the end of the first electrode 311 exposed from the hard body 2 tend to be away from the hard body 2.

The working principle is as follows: before use, the first electrode 311 is electrically connected to the wire W1.

In use, the hard body 2 is close to the object (not shown in the drawings, usually the second electrode set 32, which may also be a conductor electrically connected to the wire W1) until the first electrode 311 contacts the object. The elastic element 312 can provide a larger elastic force, and ensure that the first electrode 311 is tightly attached to the object to be connected, thereby ensuring the reliability of the electrical connection.

Preferably, the first electrode 311 extends outward to form the position-limiting body 14, the elastic element 312 is a spring, and two ends of the elastic element respectively abut against the position-limiting body 14 and the inner wall of the accommodating space 21 (i.e., the fixing plate 25), and the position-limiting body 14 abuts against the inner wall of the accommodating space 21 (i.e., the position-limiting wall 211). The repulsive force provided by the elastic member 312 causes the first electrode 311 to have a tendency to move away from the hard body 2 from the end exposed from the hard body 2. Of course, both ends of the elastic element 312 may also be fixedly connected to the inner walls of the position-limiting body 14 and the accommodating space 21, respectively, to provide a pulling force to make the end of the first electrode 311 exposed from the hard body 2 tend to be away from the hard body 2.

Preferably, the number of the first electrodes 311 is two or more, the rigid body 2 includes a fixing plate 25, and the fixing plate 25 is an inner wall of the accommodating space 21 and is fixedly connected to the rigid body 2 (by means of adhesion or bolt fastening). During assembly, the first electrodes 311 are inserted into the accommodating spaces 21 and the elastic members 312, respectively, and then the fixing plate 25 is fixedly connected to the hard body 2, so that the assembly efficiency of the first electrode group 31 can be increased.

Further, the first electrode assembly 31 further includes an isolation assembly 33, the isolation assembly 33 includes an insulating isolation pad 332, the elastic element 312 is sleeved on the first electrode 311, and the isolation pad 332 is disposed between an end of the elastic element 312 and an inner wall of the position-limiting body 14. The elastic element 312 and the stopper 14 of the first electrode 311 can be insulated, current does not pass through the elastic element 312 when the first electrode 311 is electrified, the elastic element 312 is prevented from being electrified, heated, melted or lose elasticity, the function of the elastic element 312 is ensured not to be influenced by the electrification, and the phenomenon of poor contact caused by the weakening of the elasticity of the elastic element 312 can be avoided.

Further, the isolation assembly 33 further includes a flexible and insulating sleeve 331, and the insulating sleeve 331 is disposed on the first electrode 311 and located between the elastic element 312 and the first electrode 311. The insulating sleeve 331 is typically a corrugated tube made of PP plastic. The elastic member 312 and the first electrode 311 can be insulated, current does not pass through the elastic member 312 when the first electrode 311 is electrified, the elastic member 312 is prevented from being electrified, heated, melted or lose elasticity, the function of the elastic member 312 is ensured not to be influenced by the electrification, and the phenomenon of poor contact caused by the weakening of the elasticity of the elastic member 312 can be avoided.

Further, the isolation pad 332 is fixedly provided with a connecting protrusion 333, and two ends of the insulating sleeve 331 are respectively embedded into the isolation pad 332. The insulating sleeve 331 and the isolation pad 332 can be preassembled into a whole, which is beneficial to improving the production efficiency.

Further, the wiring device 3 further includes a second electrode group 32, the second electrode group 32 further includes second electrodes 321, the second electrode group 32 includes rigid bodies 2 provided with the second electrodes 321, and the second electrodes 321 can respectively face the first electrodes 311, that is, there can be a portion where each first electrode 311 can respectively overlap each second electrode 321 when viewed along the first electrodes 311.

Preferably, the hard body 2 is provided with the accommodating space 21, the second electrode 321 extends outwards to form the limiting body 14, the second electrode 321 is provided with a clamp spring groove 142, the clamp spring 141 is clamped in the clamp spring groove 142, and the clamp spring 141 and the limiting body 14 clamp the hard body 2, so that the second electrode 321 is arranged on the hard body 2. Assembly of the second electrode set 32 is facilitated.

Example six.

The new energy vehicle power supply device comprises a power supply device 4 and a wiring device 3.

The power supply structure 4 includes an input portion 41, a charging pile 42, and an output portion 43 electrically connected in sequence.

The input part 41 is electrically connected with the charging pile 42 through the wiring device 3. The charging post 42 is a conventional device for charging the new energy vehicle W2, and is generally capable of inverting ac power into dc power and supplying power to the new energy vehicle W2 through the new energy vehicle W2 wired to the new energy vehicle W2.

The wiring device 3 comprises a second electrode set 32 and a first electrode set 31, wherein the first electrode set 31 can move relative to the second electrode set 32, so that the wiring device 3 can be powered on or off.

Further, the first electrode group 31 is provided with at least two first electrodes 311, the second electrode group 32 is provided with at least two second electrodes 321, and the second electrodes 321 can respectively face the first electrodes 311, that is, there can be a portion where each first electrode 311 can respectively overlap each second electrode 321 when viewed along the first electrodes 311. To increase the current allowed through the wiring device 3.

Further, the input unit 41 is a five-phase power supply structure, that is, the input unit 41 includes three live wires 411, a neutral wire 412, and a ground wire 413.

Further, at least one of the live wires 411 of the input portion 41 is provided with a safety device 414. Typically, the fuse 414 is an overload protection device such as a fuse, an air switch, or the like. To improve the safety of the power supply device 4. Normally, all of the live wires 411 of the input unit 41 are provided with the safety device 414.

Further, the input portion 41 further includes a contactor 44, and the live wires 411 of the input portion 41 are electrically connected to the contactor 44. Typically, the contactor 44 is a relay or the like.

Preferably, the contactor 44 is energized when the wiring device 3 is energized, and the contactor 44 is opened when the wiring device 3 is opened. The first electrode 311 and the second electrode 321 can be prevented from discharging due to the connection or disconnection of the wiring device 3, so that the electrodes can be prevented from being oxidized due to the generation of electric arcs and sparks between the first electrode 311 and the second electrode 321, and further, an electrical fire or equipment damage can be avoided.

Further, the contactor 44 supplies power to the output of the wiring device 3 (which is a conventional circuit, and the circuit diagram is not shown), so that the contactor 44 is energized when the wiring device 3 is energized, and the contactor 44 is opened when the wiring device 3 is opened. The structure is simpler, need not to set up PLC etc. and accuse device, is favorable to reduce cost.

Further, the contactors 44 are electrically connected to the second electrodes 321, respectively.

Example seven.

New energy vehicle power supply unit fills electric pile 42 and passes through termination 3 and output 43 electric connection.

It will be understood that the terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for the convenience and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered limiting of the scope of the present invention.

Claims

1. An elastic compression joint type electric connector of a charging pile is characterized by comprising a wiring device (3); the wiring device (3) comprises a first electrode (311), a spring and a hard body (2), wherein the first electrode (311) is connected with the hard body (2) through the spring.

2. The elastic force crimping type electric connector of a charging pile according to claim 1, wherein the wiring device (3) includes a first electrode group (31); the first electrode group (31) comprises a hard body (2) provided with a receiving cavity (21); the first electrode group (31) further comprises a first electrode (311) inserted into the accommodating cavity (21) and a spring; the first electrode (311) is inserted into the accommodating cavity (21) and one end of the first electrode is exposed out of the hard body (2); the spring is connected to the hard body (2) and the first electrode (311), respectively.

3. The elastic force crimping type electric connector of the charging pile according to claim 2, wherein the first electrode (311) extends outwards to form a limiting body (14), two ends of the spring respectively support against the limiting body (14) and the inner wall of the accommodating cavity (21), and the limiting body (14) supports against the inner wall of the accommodating cavity (21).

4. The elastic force pressing type electric connector of the charging pile according to claim 3, wherein the number of the first electrodes (311) is two or more, the hard body (2) comprises a fixing plate (25), and the fixing plate (25) is an inner wall of the accommodating cavity (21) and is fixedly connected with the hard body (2).

5. The elastic force crimping type electric connector of the charging pile according to claim 3, wherein the first electrode group (31) further comprises an isolation component (33), the isolation component (33) comprises an insulating isolation pad (332), the spring is sleeved on the first electrode (311), and the isolation pad (332) is arranged between the end head of the spring and the inner wall of the limiting body (14).

6. The elastic force crimping type electric connector of the charging pile according to claim 5, wherein the isolation component (33) further comprises a flexible and insulating isolation sleeve (331), and the isolation sleeve (331) is sleeved on the first electrode (311) and located between the spring and the first electrode (311).

7. The elastic force pressing type electric connector of the charging pile according to claim 6, wherein the isolation pad (332) is fixedly provided with a connecting protrusion (333), and two ends of the isolation sleeve (331) are respectively embedded into the isolation pad (332).

8. The elastic force pressing type electric connector of the charging pile according to claim 2, wherein the wiring device (3) further comprises a second electrode group (32), the second electrode group (32) further comprises a second electrode (321), the second electrode group (32) comprises a hard body (2) provided with the second electrode (321), and the second electrode (321) can be respectively opposite to the first electrode (311).

9. The elastic force crimping type electric connector of the charging pile according to claim 8 is characterized in that the hard body (2) is provided with an accommodating cavity (21), the second electrode (321) extends outwards to form the limiting body (14), the second electrode (321) is provided with a clamp spring groove (142), the clamp spring (141) is clamped into the clamp spring groove (142), and the clamp spring (141) and the limiting body (14) clamp the hard body (2).