CN214775427U

CN214775427U - Charging pile

Info

Publication number: CN214775427U
Application number: CN202120234629.8U
Authority: CN
Inventors: 陈爽; 何相江; 吴晓莉; 马瑞祥; 宋柯
Original assignee: Luzhou Energy Investment Co ltd
Current assignee: Luzhou Energy Investment Co ltd
Priority date: 2021-01-27
Filing date: 2021-01-27
Publication date: 2021-11-19
Anticipated expiration: 2031-01-27

Abstract

The utility model relates to the technical field of charging piles, and provides a charging pile, which comprises a pile body, wherein a door frame is arranged on the pile body, a door plate is arranged on the door frame in a rotating manner, and a water guide groove is arranged along the circumferential direction of the inner peripheral wall surface of the door frame; the outer wall surface of the door plate is provided with a vent, a protective screen plate and a shutter are arranged at the vent, and a fan is also arranged in the door plate; the utility model discloses a solar charging pile, including the pile body, the pile body is provided with the install bin and the module of charging, the install bin is provided with the mounting groove, and the tank bottom internal face of mounting groove is provided with the plug jack, and the both sides internal face of mounting groove is provided with the direction spout, the rear end face of the module of charging is provided with the plug that matches with the plug jack, and the both sides terminal surface of the module of charging is provided with the slider that matches with the direction spout. The utility model discloses waterproof dustproof function is excellent, and the module simple to operate that charges is swift.

Description

Charging pile

Technical Field

The utility model relates to a fill electric pile technical field, particularly, relate to a fill electric pile.

Background

With the wide use of electric energy vehicles, derived charging piles also become indispensable complete equipment. It is similar to the tanker aircraft inside the filling station to fill its function of electric pile, can fix on ground or wall, install in public building (public building, market, public parking area etc.) and residential quarter parking area or charging station, can charge for the electric automobile of various models according to different voltage classes, the input and the alternating current grid lug connection of filling electric pile, the output all is equipped with the charging plug and is used for charging for electric automobile, it generally provides two kinds of charging methods of conventional charging and quick charge to fill electric pile, people can use specific charging card to brush the card on the man-machine interaction operation interface that fills electric pile and provide and use, carry out corresponding charging method, the charging time, operation such as expense data printing, it can show the charging volume to fill electric pile display screen, the expense, data such as charging time.

Fill electric pile at present and have following defect:

1. most set up in outdoor, receive dust, rainwater weather effect outdoors, fill electric pile easy water and be full of the dust, the influence fills electric pile life, and probably brings the potential safety hazard.

2. Fill electric pile among the prior art, be provided with binding post in its cabinet body and come to be connected with the module of charging and be connected, binding post is fixed in the internal position of cabinet, and the module of charging generally fixes through the additional mounting at the internal of cabinet, in the assembling process, has the problem of the module of charging assembly difficulty.

Therefore, how to solve the above problems becomes the focus of research of those skilled in the art

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fill electric pile to solve the not enough problem of prior art.

The embodiment of the utility model discloses a realize through following technical scheme:

a charging pile comprises a pile body, wherein a door frame is arranged on the pile body, a door plate is rotatably arranged on the door frame, a water chute is circumferentially arranged along the inner peripheral wall surface of the door frame, a raised rib plate is arranged at the edge part of the inner wall surface of the door plate, and the rib plate is arranged in the water chute when the door plate is closed on the door frame;

the outer wall surface of the door plate is provided with a vent, a protective screen plate consisting of a plurality of heart shapes is arranged at the vent, beam frames protruding inwards are arranged around the vent, shutters are arranged in the beam frames, dustproof cotton covers the ports of the beam frames, the inner wall surface of the door plate is also provided with a fan mounting rack, and a plurality of direct current fans are arranged on the fan mounting rack;

the internal right of stake fixed install bin and the module of charging of being provided with of door frame department, the backplate medial surface top-down of install bin is provided with a plurality of spaced limiting plates each other, and regional formation is used for the installation between the adjacent limiting plate the mounting groove of the module of charging, the tank bottom internal face of mounting groove are provided with plug jack, and the both sides internal face of mounting groove is provided with the direction spout, the rear end face of the module of charging is provided with the plug that matches with plug jack, and the both sides terminal surface of the module of charging is provided with the slider that matches with the direction spout.

The water guide groove comprises an inner side plate, an outer side plate and a bottom plate, the inner side plate and the outer side plate are oppositely arranged on two side edges of the bottom plate to form a U-shaped water guide groove, and one end, far away from the bottom plate, of the inner side plate is provided with a bending part facing one side of the outer side plate; the inner side plate of the water chute positioned on one side of the top of the doorframe is an arc-shaped arch plate, and the outer side plate of the water chute positioned on one side of the bottom of the doorframe is downwards inclined from one end close to the bottom plate to the end far away from the bottom plate.

Further, the fan mounting bracket is U type slot structure, and the both sides roof beam of fan mounting bracket is provided with the right angle portion of bending that turns over to the outside, the right angle portion of bending is provided with a plurality of installation screws of being connected with the door plant, and the mounting panel of fan mounting bracket is provided with a plurality of locating holes, direct current fan is spacing to be set up in the locating hole.

Further, a sealing rubber strip is arranged along the edge of the ventilation opening.

Furthermore, the door plate is integrally formed with a bending plate perpendicular to the door plate, and the bending plate is hinged to the door frame through a hinge.

Furthermore, be provided with scram button and safety cover on the pile body, the upper end of safety cover is connected with the pile body through the round pin axle, and will scram button covers, and the safety cover can wind the round pin axle is rotatory.

Further, be provided with the lock on the door plant, the lock includes bull stick and spring bolt, the spring bolt is fixed in on the bull stick, can follow the bull stick rotates, and the front of door plant is provided with the lock cover, the one end that the bull stick is located the door plant front sets up in the lock cover, and the lock cover is provided with the locking closure on the lock cover.

Furthermore, the charging module is connected with a discharging module, the discharging module comprises a cooling box and a discharging resistor, the discharging resistor is arranged in the cooling box, a phase-change liquid medium is contained in the cooling box, the cooling box is provided with a liquid outlet pipe and a return pipe, and a condensing pipe is arranged between the liquid outlet pipe and the return pipe; the discharge resistor is wrapped outside the resistor sheath, a heat absorption sheet is arranged between the resistor sheath and the discharge resistor, a heat radiating sheet is arranged outside the resistor sheath, and the heat absorption sheet is connected with the heat radiating sheet through a plurality of heat conducting copper pipes.

Further, the phase-change liquid medium is any one of transformer oil, freon, carbon tetrafluoride and sulfur hexafluoride.

The utility model discloses technical scheme has following advantage and beneficial effect at least:

1. the utility model discloses a set up the guiding gutter in door frame inner peripheral wall circumference, after the door plant lock, rainwater can be discharged from the door frame bottom along the guiding gutter, play water-proof effects, be provided with the dust screen in vent department simultaneously, can prevent that the dust from getting into in the electric pile of charging, and the protective structure and the structure of keeping off the rain of vent department can avoid the rainwater to drip into in the electric pile of charging as far as possible;

2. the utility model discloses a set up direction spout and limiting plate guide in the mounting groove and charge the module and insert the mounting groove, make in the plug inserts the plug jack, realize charging in the module is fixed in the install bin, simple to operate is swift.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a charging pile provided in embodiment 1 of the present invention;

FIG. 2 is a front view of a door panel;

FIG. 3 is a rear view of the door panel;

FIG. 4 is a side view of a door panel;

FIG. 5 is a cross-sectional view taken along A-A of FIG. 3;

FIG. 6 is a rear view of the fan mount;

FIG. 7 is a side view of the fan mount;

FIG. 8 is a schematic structural view of the mounting box;

FIG. 9 is a first schematic structural diagram of a charging module;

FIG. 10 is a second schematic structural view of a charging module;

FIG. 11 is a front view of the flume;

FIG. 12 is a side sectional view of a flume;

FIG. 13 is a schematic diagram of a discharge module;

FIG. 14 is a cross-sectional view taken along line B-B of FIG. 13;

fig. 15 is a schematic view of the structure of the door lock.

Icon: 1-pile body, 2-door frame, 3-door panel, 4-water chute, 401-inner panel, 402-outer panel, 403-bottom panel, 404-bending part, 5-rib plate, 6-sealing rubber strip, 7-protection screen plate, 8-shutter, 9-dustproof cotton, 10-pin shaft, 11-pressing bar, 12-fan mounting frame, 13-DC fan, 14-mounting box, 15-charging module, 16-limiting plate, 17-plug jack, 18-sliding groove, 19-plug, 20-heat dissipation hole, 21-hidden handle, 22-sliding block, 23-bending plate, 24-door lock, 2401-rotating rod, 2402-bolt, 2403- 'one' counter bore, 25-door lock sleeve, 26-lock cover, 27-protective cover, 28-positioning hole, 29-cooling box, 30-liquid outlet pipe, 31-return pipe, 32-condensation pipe, 33-fan, 34-resistor, 35-resistor sheath, 36-wiring terminal, 37-heat absorbing sheet, 38-heat radiating sheet, 39-epoxy resin sealing layer, 40-heat conducting copper pipe and 41-heat radiating fin.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which is usually placed when the product of this application is used, the description is only for convenience of description and simplification, but the indication or suggestion that the device or element to be referred must have a specific orientation, be constructed in a specific orientation and be operated is not to be construed as limiting the present invention.

In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

Referring to fig. 1 to 7, the present embodiment provides a charging pile, including a pile body 1, a door frame 2 and a door panel 3 are arranged on the pile body 1, and the door panel 3 is rotatably connected to the door frame 2 through a hinge. The inner peripheral wall surface circumference of door frame 2 is provided with guiding gutter 4, the cross-section of guiding gutter 4 is the U type, and the wall face limit portion of door plant 3 towards door frame 2 one side is provided with floor 5, and when door plant 3 closed fastening door frame 2, floor 5 inserts in guiding gutter 4, and door plant 3 covers the equipment district, and the rainwater that drips to on filling electric pile just discharges from door frame 2 bottom along guiding gutter 4 like this, has played water-proof effects.

The door plate 3 is provided with a vent, a sealing rubber strip 6 is adhered to the vent, a protective screen plate 7 consisting of a plurality of heart-shaped parts is arranged at the vent, a beam frame protruding towards the inner side is arranged at the periphery of the vent, a louver 8 is arranged in the beam frame, a port of the beam frame is covered with dustproof cotton 9, a pressing strip 11 is arranged on the surface of the dustproof cotton 9, the pressing strip 11 is welded with the inner side surface of the door plate 3, a fan mounting frame 12 is further arranged on the inner wall surface of the door plate 3, the fan mounting frame 12 is of a U-shaped groove structure, two side beams of the fan mounting frame 12 are provided with right-angle bending parts 404 turning outwards, the right-angle bending parts 404 are provided with a plurality of mounting screw holes connected with the door plate 3, a plurality of positioning holes 28 are formed in a mounting plate of the fan mounting frame 12, the direct current fan 13 is limited in the positioning holes 28, and can play a role of protecting the louver 8 through the

protective screen plate

7, and 8 shutter can avoid the rainwater to instil into charging pile as far as possible in, the dust screen can prevent that the dust from getting into charging pile simultaneously, and direct current fan 13 can play the radiating effect.

Referring to fig. 8 to 10, the installation box 14 and the charging module 15 are fixedly arranged at the door frame 2 in the pile body 1, a mounting hole is formed in a back plate of the installation box 14, the installation box 14 is fixed to a charging pile through a bolt penetrating through the mounting hole, the installation box 14 is provided with a plurality of strip-shaped heat dissipation holes 20 so as to facilitate heat dissipation, a plurality of limiting plates 16 which are transversely arranged and spaced from each other are integrally formed on the inner wall surface of the back plate of the installation box 14 from top to bottom, a mounting groove for mounting the charging module 15 is formed between every two adjacent limiting plates 16, plug jacks 17 are formed in the inner wall surface of the bottom of the mounting groove, and preferably, the plug jacks 17 are arranged at four corners of the mounting groove. The left and right sides internal wall of mounting groove is provided with direction spout 18, the rear end face of the module of charging 15 is provided with the plug 19 that matches with plug jack 17, and the front end of plug 19 is the toper form to more do benefit to plug 19 and insert in plug jack 17, the preceding terminal surface of the module of charging 15 is provided with hides handle 21, neither occupation space, also conveniently takes out install bin 14 with the module of charging 15. It can be seen that, when installing the module 15 that charges, the slider 22 that will charge the module 15 aligns direction spout 18, slides in the mounting groove to make the lower terminal surface of the module 15 that charges and the up end laminating of stopper through the stopper, utilize the guide of direction spout 18 and stopper, make plug 19 can insert plug jack 17 smoothly, accomplish quick installation, convenient and fast.

Referring to fig. 11 to 12, in the embodiment, in order to enable the water to smoothly flow along the water chute 4 without being retained, the water chute 4 includes an inner side plate 401, an outer side plate 402 and a bottom plate 403, the inner side plate 401 and the outer side plate 402 are oppositely disposed on two side edges of the bottom plate 403 to form a U-shaped water chute 4, one end of the inner side plate 401, which is away from the bottom plate 403, is provided with a bent portion 404 facing one side of the outer side plate 402, a water blocking protrusion is formed by the bent portion 404, so that rainwater in the water chute 4 can be blocked from overflowing the water chute 4, and the rainwater is prevented from overflowing from one side of the inner side plate 401 to the inside of the charging pile, meanwhile, the inner side plate 401 of the water chute 4, which is located on one side of the top of the door frame 2, is an arc-shaped arch plate, which is connected with the inner side plates 401 on two sides in an arc manner, so that the rainwater can smoothly flow from two sides, while the outer side plate 402 of the water chute 4, which is located on one side of the bottom of the door frame 2, is inclined downward from one end close to the end of the bottom plate 403, the rainwater of being convenient for like this flows from the bottom of door frame 2, avoids the rainwater gathering.

Meanwhile, referring to fig. 2, the door panel 3 is integrally formed with a bending plate 23 perpendicular to the door panel, and the bending plate 23 is hinged to the door frame 2 through a hinge, so that the door panel 3 is rotatably connected to the door frame 2 through the perpendicular bending plate 23, and the door panel 3 obtains a large opening degree.

Referring to fig. 15, in this embodiment, a door lock 24 is disposed on the door panel 3, the door lock 24 includes a rotating rod 2401 and a bolt 2402, the door panel 3 is provided with a threaded hole, the rotating rod 2401 is screwed into the threaded hole in a threaded manner, a first end of the rotating rod 2401 is provided with a mounting hole, the bolt 2402 is attached to the first end of the rotating rod 2401, and then the bolt 2402 is pressed against the first end of the rotating rod 2401 by screwing a screw into the mounting hole, so that the rotating rod 2401 is rotated by 90 degrees, and the bolt 2402 is turned from vertical to horizontal and is blocked by a frame of the pile body 1, and the door panel 3 cannot be opened outward. Door plant 3 openly is provided with door lock sleeve 25, door lock sleeve 25 is the pipe form, and the tip is convertible at door lock sleeve 25 is provided with locking closure 26, bull stick 2401 is located the positive one end of door plant 3, and the second end position of bull stick 2401 is located door lock sleeve 25 promptly, and is provided with "one" word counter bore 2403 at this end tip, just can rotate bull stick 2401 through "one" word screwdriver, opens and closes door plant 3, plays certain guard action, prevents that anyone from opening door plant 3 at will.

Meanwhile, as shown in fig. 1, an emergency stop button and a protective cover 27 are arranged on the pile body 1, the upper end portion of the protective cover 27 is connected with the pile body 1 through a pin shaft 10 and covers the emergency stop button, the protective cover 27 can wind the pin shaft 10 to rotate, the protective cover 27 is rotated around the pin shaft 10 by poking the protective cover 27, the emergency stop button is exposed, emergency stop operation can be performed, after the emergency stop operation is completed, the protective cover 27 is loosened, and under the action of gravity, the protective cover 27 rotates around a pivot to cover the emergency stop button again.

Referring to fig. 13 to 14, after the charging pile is charged, a part of remaining electric energy generally needs to be reset to zero in time to avoid a safety hazard, a common way of resetting the remaining electric energy to zero is consumed by an additional resistor 34, which causes a large amount of heat of the resistor 34, in order to avoid an excessively high temperature caused by the heat of the resistor 34, the charging module 15 is connected to a discharging module, the discharging module includes a cooling box 29 and the discharging resistor 34, the cooling box 29 includes a box body and a box cover, the box body and the box cover are detachably connected, the discharging resistor 34 is disposed in the cooling box 29, a phase-change liquid medium is contained in the cooling box 29, the phase-change liquid medium does not have the discharging resistor 34, the phase-change liquid medium is any one of transformer oil, freon, carbon tetrafluoride and sulfur hexafluoride, a liquid outlet pipe 30 is disposed on the right side of the cooling box 29, the left side is provided with the back flow pipe 31, and the port of drain pipe 30 is located on the port of back flow pipe 31, be connected with condenser pipe 32 between drain pipe 30 and the back flow pipe 31, and condenser pipe 32 is by the slope of drain pipe 30 one side to back flow pipe 31 one side setting downwards to the gas that is convenient for evaporate gets into condenser pipe 32 through drain pipe 30, flows into cooler bin 29 through back flow pipe 31 again. In order to enhance the cooling effect of the condensation duct 32, a fan 33 for blowing air toward the condensation duct 32 is disposed below the condensation duct 32, the fan 33 is fixed to a mounting plate, and both ends of the mounting plate are fixed to the liquid outlet pipe 30 and the return pipe 31.

The discharge resistor 34 is externally sealed and coated outside the resistor 34, an upper end opening and a lower end opening of the resistor sheath 35 are closed, an end cover is arranged at the opening, a binding post 36 is arranged on the box cover, the binding post 36 downwards penetrates through the end cover to be connected with the resistor 34, a heat absorbing sheet 37 is arranged between the resistor sheath 35 and the resistor 34, a heat radiating sheet 38 is arranged on the outer side of the resistor sheath 35, an epoxy resin sealing layer 39 is filled between the resistor sheath 35 and the heat absorbing sheet 37 as well as between the resistor sheath 35 and the heat radiating sheet 38 so as to insulate the resistor 34, the heat absorbing sheet 37 is connected with the heat radiating sheet 38 through a plurality of heat conducting copper pipes 40, a plurality of heat radiating fins 41 are uniformly distributed on the outer wall surface of the heat radiating sheet 38, and the heat radiating area is increased through the heat radiating fins 41.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a fill electric pile, includes pile body (1), be provided with door frame (2) on pile body (1), door frame (2) rotate and are provided with door plant (3), its characterized in that: a water chute (4) is arranged along the circumferential direction of the inner peripheral wall surface of the door frame (2), a raised rib plate (5) is arranged at the edge part of the inner wall surface of the door plate (3), and when the door plate (3) is closed on the door frame (2), the rib plate (5) is placed in the water chute (4);

the outer wall surface of the door plate (3) is provided with a vent, a protective screen plate (7) consisting of a plurality of heart shapes is arranged at the vent, beam frames protruding inwards are arranged around the vent, shutters (8) are arranged in the beam frames, the ports of the beam frames are covered with dustproof cotton (9), the inner wall surface of the door plate (3) is also provided with a fan mounting rack (12), and a plurality of direct current fans (13) are arranged on the fan mounting rack (12);

just right in pile body (1) door frame (2) department is fixed to be provided with install bin (14) and charging module (15), the backplate medial surface top-down of install bin (14) is provided with a plurality of spaced limiting plate (16) each other, and regional formation is used for the installation between adjacent limiting plate (16) the mounting groove of charging module (15), the tank bottom internal face of mounting groove are provided with plug jack (17), and the both sides internal face of mounting groove is provided with direction spout (18), the rear end face of charging module (15) is provided with plug (19) that match with plug jack (17), and the both sides terminal surface of charging module (15) is provided with slider (22) that matches with direction spout (18).

2. A charging pile according to claim 1, characterised in that: the water chute (4) comprises an inner side plate (401), an outer side plate (402) and a bottom plate (403), the inner side plate (401) and the outer side plate (402) are oppositely arranged on two side edges of the bottom plate (403) to form a U-shaped water chute (4), and one end, far away from the bottom plate (403), of the inner side plate (401) is provided with a bending part (404) facing one side of the outer side plate (402); the inner side plate (401) of the water chute (4) positioned on one side of the top of the door frame (2) is an arc-shaped arch plate, and the outer side plate (402) of the water chute (4) positioned on one side of the bottom of the door frame (2) is downwards inclined from one end close to the bottom plate (403) to one end far away from the bottom plate (403).

3. A charging pile according to claim 1, characterised in that: fan mounting bracket (12) are U type slot structure, and the both sides roof beam of fan mounting bracket (12) is provided with right angle portion of bending (404) that turns over to the evagination, right angle portion of bending (404) is provided with a plurality of installation screw of being connected with door plant (3), and the mounting panel of fan mounting bracket (12) is provided with a plurality of locating holes (28), direct current fan (13) are spacing to be set up in locating hole (28).

4. A charging pile according to claim 1, characterised in that: and a sealing rubber strip (6) is arranged along the edge of the vent.

5. A charging pile according to claim 1, characterised in that: the door plate (3) is integrally formed with a bending plate (23) perpendicular to the door plate, and the bending plate (23) is hinged to the door frame (2) through a hinge.

6. A charging pile according to claim 1, characterised in that: be provided with scram button and safety cover on stake body (1), the upper end of safety cover is connected with stake body (1) through round pin axle (10) and will scram button covers, and the safety cover can wind round pin axle (10) are rotatory.

7. A charging pile according to claim 1, characterised in that: be provided with door lock (24) on door plant (3), door lock (24) are including bull stick (2401) and spring bolt (2402), spring bolt (2402) are fixed in on bull stick (2401), can follow bull stick (2401) rotates, and the front of door plant (3) is provided with door lock sleeve (25), the one end that bull stick (2401) is located door plant (3) front sets up in door lock sleeve (25) and is provided with locking closure (26) on door lock sleeve (25).

8. A charging pile according to claim 1, characterised in that: the charging module (15) is connected with a discharging module, the discharging module comprises a cooling box (29) and a discharging resistor (34), the discharging resistor (34) is arranged in the cooling box (29), a phase-change liquid medium is contained in the cooling box (29), the cooling box (29) is provided with a liquid outlet pipe (30) and a return pipe (31), and a condensing pipe (32) is arranged between the liquid outlet pipe (30) and the return pipe (31); the discharging resistor (34) is wrapped by the resistor sheath (35), a heat absorbing sheet (37) is arranged between the resistor sheath (35) and the discharging resistor (34), a heat radiating sheet (38) is arranged on the outer side of the resistor sheath (35), and the heat absorbing sheet (37) is connected with the heat radiating sheet (38) through a plurality of heat conducting copper pipes (40).

9. A charging pile according to claim 8, characterised in that: the phase-change liquid medium is any one of transformer oil, freon, carbon tetrafluoride and sulfur hexafluoride.