A charging gun

Abstract

The present invention discloses a charging gun, including a gun head, a shell, a lock assembly, a cable assembly, a control assembly and a waterproof assembly; the shell includes an integrally connected head and tail; the interior of the shell is divided into a lock installation cavity and a cable installation cavity which are not connected to each other by a partition; a shell groove is reserved at the tail of the shell corresponding to the position of the lock installation cavity; a lock assembly and a control assembly are arranged inside the lock installation cavity; a cable assembly is arranged inside the cable installation cavity; the cable assembly is electrically connected to the gun head; and the control assembly is electrically connected to the cable assembly. In the charging gun provided by the present invention, after rainwater enters the lock installation cavity, the rainwater flows into the drain pipe, and then flows into the moisture collection chamber and is discharged to the external environment through the water outlet hole; the water outlet hole can be normally closed in bad weather, so as to prevent dust, sand, impurities, etc. in the external environment from entering the shell; the micro switch in the lock installation cavity ensures dryness, which is conducive to the long-term normal operation of the micro switch.

Description

Technical Field

[0001] The present invention relates to the technical field of charging equipment, and in particular to a charging gun. Background Art

[0002] As a green means of transportation with broad development prospects, electric vehicles will be popularized at an extremely rapid speed in the future, and the future market prospects are also extremely huge. Against the backdrop of the serious global energy crisis and environmental crisis, the Chinese government is actively promoting the application and development of new energy vehicles, and charging guns are important supporting infrastructure necessary for the development of electric vehicles.

[0003] The Chinese patent with the announcement number CN206236873U discloses a structure of a charging gun, which includes a gun body, a switch device and a riveting tube, wherein: the gun body includes an upper grip and a lower grip that are opposite to each other, and a receiving space is formed inside the upper and lower grips, and a butt joint for transmitting power is assembled on one side, and a receiving groove is concavely provided on the top of the upper grip; the switch device is assembled at the gun body, including an operating button assembled at the receiving groove of the upper grip, and a buckling portion extending to the top of the butt joint is provided on one side of the operating button, and a buckling portion extending to the top of the butt joint is provided on the other side. There is an elastic body for resetting the operating button, and a micro switch located in the receiving groove is provided at the bottom of the operating button, and the micro switch is electrically connected to a control circuit located in the receiving space of the gun body, and one side of the control circuit is provided with multiple transmission lines for controlling the power transmission of the docking joint, and the other side is connected with a power line; and the riveting tube is assembled on the other side of the upper and lower grips relative to the docking joint, and is provided with a riveting head riveted at the joint position of one side of the upper and lower grips, and the inside of the riveting head is provided with a channel that passes through the outside of the riveting tube and is provided for the power line of the control circuit. This invention achieves the purpose of preventing moisture from penetrating into the receiving space inside the gun body, has the effect of extending the service life of the control circuit and other components of the switch device, and by installing the operating button and micro switch of the switch device in the receiving groove at the top of the upper grip, it can be convenient for inspection, maintenance or replacement, and the maintenance operation is more time-saving and labor-saving.

[0004] The above invention has the following problems during implementation: although the invention achieves the purpose of preventing water vapor from penetrating into the internal space of the gun body, if the charging gun is charged for a long time in heavy rain / rainstorm, it is difficult to ensure that rainwater will not penetrate into the gun body. At this time, once the rainwater penetrates into the outer shell of the charging gun, it is difficult to discharge it. There are many electrical components in the charging gun. Once rainwater penetrates, it is easy to cause the charging gun to short-circuit and be damaged.

[0005] The Chinese patent with announcement number CN217444701U discloses a charging gun housing and a charging gun, including: a plug-in shell for plugging in the charging assembly of the charging gun, the plug-in shell includes a head and a tail connected to each other, the outer wall of the head has a first mounting portion, the tail has a guide hole, and the guide hole is arranged along the extension direction of the tail; a front cover body, which is covered on the first mounting portion and surrounded by the first mounting portion to form a first guide cavity, the first guide cavity is connected to the guide hole, and the first mounting portion is used to install a locking member. The charging gun housing of this invention discharges the liquid that enters the first guide cavity through the lock member through the guide hole at the tail, thereby improving the protection level and user experience of the charging gun.

[0006] The above invention has the following problems during implementation: (1) Since external liquid (such as water) enters the first guide cavity through the lock, the liquid in the first guide cavity can be discharged through the guide hole at the tail to prevent the liquid from flowing out of the first guide cavity and into the charging assembly. However, when the external liquid passes through the micro switch, although the micro switch has a waterproof function, it is still possible that the sealing ring loses its elasticity or is damaged due to long-term contact with water, causing water leakage in the micro switch, thereby damaging the charging gun; (2) The charging gun of the invention is not suitable for use on rainy days. There is always water inside the first mounting part of the charging shell. After the rain stops, the residual water remaining inside the first mounting part (i.e., the space below the front cover) is difficult to dry quickly because the drainage port is relatively small and the first mounting part is relatively closed. The micro switch is in a humid environment, which is not conducive to its normal operation. (3) The drainage port of the invention is an open drainage port, which discharges external liquid in real time. This creates another problem. Dust, sand, impurities, etc. in the external environment can also enter the interior of the charging shell of the invention through the drainage port, affecting the normal operation of the micro switch. Summary of the invention

[0007] In view of this, the present invention provides a charging gun.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] A charging gun, comprising a gun head, a shell, a lock assembly, a cable assembly, a control assembly and a waterproof assembly; the shell comprises a head and a tail portion connected in one piece; the interior of the shell is divided into a lock installation cavity and a cable installation cavity which are not connected to each other by a partition; a shell groove is reserved at the tail portion of the shell corresponding to the position of the lock installation cavity; a lock assembly and a control assembly are arranged inside the lock installation cavity; a cable assembly is arranged inside the cable installation cavity; the cable assembly is electrically connected to the gun head; the control assembly is electrically connected to the cable assembly; the shell is respectively provided with a first through groove and a second through groove at the head end and the tail end of the cable installation cavity; the gun head cover is arranged on the first through groove; the tail portion of the cable assembly extends out of the second through groove;

[0010] The waterproof component includes a cooling chamber, a moisture collecting chamber, an air supply chamber, a heat dissipation main pipe, a heat dissipation branch pipe and a drain pipe; a handle groove is provided at the side end of the moisture collecting chamber away from the gun head; the cooling chamber and the moisture collecting chamber are fixedly connected; the cooling chamber and the moisture collecting chamber are embedded in the interior of the shell groove; the cooling chamber and the shell are detachably connected; a drain pipe connected to the interior of the moisture collecting chamber is provided on the shell; an anti-backflow component is provided inside the drain pipe; a water outlet is provided at the bottom end of the moisture collecting chamber; a cooling medium is passed into the cooling chamber; the two heat dissipation main pipes are respectively fixed in the interior of the cable installation cavity; the two ends of the heat dissipation branch pipe are respectively connected to the heat dissipation main pipes; the heat dissipation branch pipe passes through the cooling chamber and the moisture collecting chamber in sequence; an adjustment part is detachably provided on the side end surface of the moisture collecting chamber that is not in contact with the cooling chamber; an air supply component is provided in the air supply chamber.

[0011] Further, the shell package includes a first shell and a second shell;

[0012] The first shell includes a head and a tail connected in one piece; the tail of the first shell is tilted downward; the second shell includes a head and a tail connected in one piece; the tail of the second shell is tilted downward;

[0013] The first shell and the second shell are sealed and embedded with each other; the first shell and the second shell are threadedly connected;

[0014] The first shell and the second shell are provided with a lock slot at one end of the head of the lock installation cavity;

[0015] The flange end of the gun head is threadedly connected to the first shell and the second shell respectively; a sealing gasket is embedded between the flange end of the gun head and the first shell and the second shell.

[0016] Further, the cable assembly includes a cable, a terminal, a cable sheath, a control element and a retaining frame;

[0017] One end of the cable is provided with a plurality of rubber-coated terminals, and the other end of the cable is provided with a rubber-coated cable sheath; a control element is provided on the cable; the control element is electrically connected to the cable; one end of the cable is electrically connected to the gun head through a plurality of terminals; the cable is arranged inside the cable installation cavity; the cable sheath is matched and penetrated to extend out of the second through slot;

[0018] The retaining frame is arranged inside the cable installation cavity; the retaining frame is threadedly connected to the gun head;

[0019] The retaining frame is provided with a plurality of through holes; the cables and terminals of the cable assembly are respectively passed through the plurality of through holes and are electrically connected to the gun head;

[0020] A fixing head is fixedly arranged at the outer end of the cable sheath; a fixing groove is circumferentially opened on the fixing head; and the first shell and the second shell are respectively matched and clamped in the fixing groove.

[0021] Furthermore, the lock assembly includes a lock plate, a lock portion, a button portion, an elastic member and a baffle;

[0022] The middle end of the locking plate is rotatably connected to the first shell and the second shell through a pin shaft;

[0023] The front end of the locking plate is penetrated by the locking slot; the locking portion is provided at one end of the locking plate extending from the locking slot;

[0024] The rear end of the locking plate is threadedly connected to the button portion; the first shell and the second shell are provided with a button slot at the upper end of the cable installation cavity, and the button portion extends through the button slot;

[0025] The lower end of the button portion is provided with a receiving groove; an elastic member is provided inside the receiving groove; the other end of the elastic member is in contact with the contact plate; the contact plate is fixed inside the lock buckle installation cavity;

[0026] A baffle is provided at the lower end of the locking plate; the baffle is located between the pin shaft and the button portion.

[0027] Further, the baffle includes side baffles, a top baffle and a soft moisture-absorbing block;

[0028] The side baffle plate and the top baffle plate are both fixedly connected to the lower end of the locking plate;

[0029] The side baffle is an annular structure; the soft moisture-absorbing block is fixedly provided on the inner side surface of the side baffle in the circumferential direction; the longitudinal section of the soft moisture-absorbing block is an inverted right-angled trapezoid;

[0030] The top baffle is provided at the top end of the side baffle; a switch through hole is provided through the top baffle.

[0031] Further, the control assembly includes a micro switch, a micro switch mounting seat and a waterproof mounting box;

[0032] The waterproof installation box is fixedly arranged on the partition; the upper end of the waterproof installation box is fixedly connected to the lower end of the micro switch mounting seat;

[0033] The micro switch mounting seat is located inside the side baffle; a slot is circumferentially provided on the outer side surface of the micro switch mounting seat; and the soft moisture-absorbing block is matched and embedded in the slot;

[0034] The micro switch is fixedly arranged inside the micro switch mounting seat; the micro switch is located below the switch through hole; the top end of the micro switch abuts against the lower end of the locking plate;

[0035] The signal line of the micro switch is inserted into the interior of the waterproof installation box, and one end of the signal line of the micro switch passes through the waterproof installation box and is electrically connected to the control element.

[0036] Furthermore, the bottom end of the moisture collection chamber has a water outlet; the water outlet protrudes toward the outer side of the shell;

[0037] A water outlet plate is fixedly provided on the inner bottom wall of the moisture collection chamber; the bottom end surface of the water outlet plate and the top end surface of the water outlet portion are parallel to each other;

[0038] A water level sensor is provided on the water outlet plate;

[0039] A water outlet hole is provided through the bottom end surface of the water outlet plate and the water collection chamber; a rotating plate is provided on the bottom end surface of the water outlet plate; a first motor is fixedly provided on the top end surface of the water outlet portion; an output shaft of the first motor passes through the water outlet portion and is connected to a connecting rod; the connecting rod is fixedly connected to the middle part of the rotating plate; a plate through hole connected to the water outlet hole is provided on the rotating plate, and the plate through hole does not cover the center of the rotating plate;

[0040] A controller and a power supply are provided on the side end surface of the moisture collection chamber that is not adjacent to the cooling chamber;

[0041] The drain pipe is located on one side of the top of the water collection chamber close to the direction of the gun head; the drain pipe is arranged horizontally when the charging gun is charging;

[0042] A wire-passing hole is provided on the moisture collection chamber; a wire-passing pipe is provided inside the moisture collection chamber; two ends of the wire-passing pipe are respectively connected with the inside of the air supply chamber and the outside of the moisture collection chamber.

[0043] Furthermore, a sealing ring is fixedly provided inside the connecting pipe opening of the heat dissipation main pipe; the two ends of the heat dissipation branch pipe are respectively tightly mounted inside the sealing rings of the two heat dissipation main pipes; the heat dissipation branch pipes are arranged in a continuous S shape inside the moisture collection chamber; a micro air pump is provided on the heat dissipation main pipe; the top and bottom ends of the cooling chamber respectively have a medium inlet and a medium output; the medium inlet and the medium output both protrude toward the outside of the shell; a cooling medium inlet is provided at the top of the medium inlet; a cooling medium outlet is provided at the bottom of the medium output; a power supply is provided inside the waterproof installation box; the power supply is electrically connected to the micro switch and the micro air pump respectively.

[0044] Further, the air supply assembly includes a base, a second motor and a fan;

[0045] The base is arranged in an inclined manner; the second motor is fixedly provided on the upper end of the base;

[0046] The output shaft of the second motor is fixedly connected to the fan;

[0047] A plurality of ventilation holes are provided on the sides and top of the air supply chamber;

[0048] A fixing frame is fixedly disposed at the outer end of the waterproof installation box; an elastic ring is fixedly disposed circumferentially on the inner side of the fixing frame; and the upper end of the air supply chamber is tightly clamped inside the elastic ring;

[0049] The water level sensor is electrically connected to the controller; the controller is electrically connected to the first motor, the second motor, the fan, and the micro air pump respectively; and the power supply is electrically connected to the first motor, the second motor, and the fan respectively.

[0050] Further, the anti-backflow assembly includes a slider, a counterweight and a tension spring;

[0051] The end of the drain pipe close to the gun head is provided with a water inlet connected to the lock installation cavity, and the other end of the drain pipe is blocked;

[0052] A drainage channel is provided inside the drainage pipe; the inner diameter of the drainage channel is larger than the inner diameter of the water inlet; the drainage channel is connected to the water inlet;

[0053] The sliding block is matched and slidably connected in the drainage channel;

[0054] A first drain port is provided inside the slider; the first drain port is composed of a first transverse drain port and a first longitudinal drain port that are interconnected; the first transverse drain port is connected to the drainage channel;

[0055] A second drain port is provided inside the pipe wall of the drain pipe; the second drain port is composed of a second transverse drain port and a second longitudinal drain port which are interconnected; the second transverse drain port is connected to the inside of the moisture collection chamber;

[0056] At least one slider through hole is provided inside the slider; the slider through hole is composed of a large-diameter slider through hole and a small-diameter slider through hole that are interconnected; the small-diameter slider through hole is connected to the drainage channel;

[0057] A counterweight is placed in the large-diameter slider through hole of each slider through hole; the counterweight is fixedly connected to one end of the tension spring; the tension spring passes through the small-diameter slider through hole; the other end of the tension spring is fixedly connected to the other end of the drain pipe;

[0058] When the tension spring is in a natural state, the first longitudinal drain outlet is connected to the second longitudinal drain outlet; the distance between the vertical end surface of the second longitudinal drain outlet close to the gun head direction and the vertical end surface of the first longitudinal drain outlet close to the gun head direction is not less than the distance between the outer wall of the other end of the slider and the inner wall of the other end of the drainage channel; the distance between the vertical end surface of the second longitudinal drain outlet close to the gun head direction and the vertical end surface of the first longitudinal drain outlet away from the gun head direction is less than the distance between the outer wall of one end of the slider and the inner wall of one end of the drainage channel.

[0059] Compared with the prior art, the present invention has the following beneficial effects:

[0060] (1) For the charging gun provided by the present invention, if rainwater enters the lock mounting cavity, the rainwater will flow into the drain pipe, then into the water collection chamber, and then be discharged to the outside environment through the water outlet. The water outlet is not normally open, but can be normally closed in bad weather to prevent dust, sand, impurities, etc. from the external environment from entering the shell, thereby ensuring the long-term normal operation of the micro switch.

[0061] (2) The micro switch of the charging gun provided by the present invention is not exposed to the water environment and does not come into contact with water. Even if water enters the lock mounting cavity of the shell, the water will not penetrate into the micro switch, and the waterproof mounting box ensures that the signal line and power supply of the micro switch are not in contact with water.

[0062] (3) For the charging gun provided by the present invention, if the charging gun is tilted toward the gun head, the slider will completely block the drainage channel, so that the water collected in the water collection chamber cannot flow back into the lock mounting cavity of the shell;

[0063] (4) In the charging gun provided by the present invention, the fan continuously delivers wind to the lock mounting cavity. Even if a small amount of accumulated water or a small amount of water droplets remain inside the lock mounting cavity, the small amount of accumulated water or a small amount of water droplets will be blown dry quickly. The interior of the lock mounting cavity including the micro switch is in a dry environment, which is conducive to its normal operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] Figure 1 A three-dimensional diagram of a charging gun provided in an embodiment of the present invention;

[0065] Figure 2 for Figure 1 Another angle structural diagram;

[0066] Figure 3 A three-dimensional diagram of a charging gun provided by an embodiment of the present invention after a gun head kit is installed;

[0067] Figure 4 A top view of a charging gun provided in an embodiment of the present invention;

[0068] Figure 5 for Figure 4 AA section view in the figure;

[0069] Figure 6 for Figure 5 A magnified view of part A in FIG.

[0070] Figure 7 A schematic diagram of the exploded structure of a charging gun provided in an embodiment of the present invention;

[0071] Figure 8 A schematic diagram of the exploded structure of a charging gun provided in an embodiment of the present invention;

[0072] Fig. 9 A schematic diagram of the exploded structure of a charging gun provided in an embodiment of the present invention;

[0073] Fig.10 A three-dimensional diagram of a lock assembly and a waterproof assembly provided in an embodiment of the present invention;

[0074] Fig.11 A three-dimensional diagram of a water outlet plate, a water level sensor, a rotating plate and a first motor provided in an embodiment of the present invention;

[0075] Fig.12 A three-dimensional diagram of a drain pipe provided by an embodiment of the present invention;

[0076] Fig.13 A three-dimensional diagram of a slider provided by an embodiment of the present invention;

[0077] Fig.14 for Fig.13 Schematic diagram of the structure from another angle.

[0078] In the figure: 1, gun head; 2, first shell; 3, second shell; 4, lock slot; 5, first slot; 6, second slot; 7, shell slot; 8, screw; 9, partition; 10, lock installation cavity; 11, cable installation cavity; 12, sealing gasket; 13, cable; 14, terminal; 15, cable sheath; 16, control element; 17, retaining frame; 18, fixed wire head; 19, lock plate; 20, lock part; 21, button part; 22, elastic member; 23, baffle; 231, side baffle; 232, top baffle; 233, soft moisture absorbent block; 234, switch through hole; 24, micro switch; 25, micro switch mounting seat; 26, waterproof mounting box; 27, cooling chamber; 271, medium inlet; 272, medium outlet; 28, moisture collection chamber; 281 , water outlet; 29, air supply chamber; 30, heat dissipation main pipe; 31, heat dissipation branch pipe; 32, drain pipe; 33, grip groove; 34, slider; 35, counterweight; 36, tension spring; 37, water inlet; 38, drainage channel; 39, first drain outlet; 40, second drain outlet; 41, slider through hole; 42, water outlet plate; 43, water level sensor; 44, water outlet hole; 45, rotating plate; 46, plate through hole; 47, first motor; 48, connecting rod; 49, controller; 50, power supply; 51, wire hole; 52, wire tube; 53, adjusting part; 54, elastic sealing block; 55, sealing ring; 56, base; 57, second motor; 58, fan; 59, ventilation hole; 60, fixing frame; 61, elastic ring; 62, gun head kit; 63, abutment plate. DETAILED DESCRIPTION

[0079] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0080] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of 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 and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0081] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0082] Example:

[0083] like Figure 1-14 As shown, a charging gun includes a gun head 1, a shell, a locking assembly, a cable assembly, a control assembly and a waterproof assembly.

[0084] The shell package includes a first shell 2 and a second shell 3; the first shell 2 includes a head and a tail connected in one piece; the tail of the first shell 2 is tilted downward; the second shell 3 includes a head and a tail connected in one piece; the tail of the second shell 3 is tilted downward.

[0085] The first shell 2 and the second shell 3 are sealed and fitted with each other; a groove is provided on the connecting end surface of one of the first shell 2 and the second shell 3, and a convex strip is provided on the connecting end surface of the other shell, the groove and the convex strip are fitted with each other, and a sealing strip is also embedded in the fitted connecting end surfaces. The first shell 2 and the second shell 3 are threadedly connected; a threaded connection portion is provided on the second shell 3, and a threaded hole is provided on the first shell 2 at a position corresponding to the threaded connection portion, and a screw 8 is screwed into the threaded connection portion through the threaded hole to realize the threaded connection of the first shell 2 and the second shell 3.

[0086] The first housing 2 and the second housing 3 are provided with a lock slot 4 at one end of the head of the lock installation cavity 10. The first housing 2 and the second housing 3 are provided with a first slot 5 at the head end of the cable installation cavity 11. The first housing 2 and the second housing 3 are provided with a second slot 6 at the tail end of the cable installation cavity 11. The tail of the first housing 2 and the second housing 3 is provided with a housing slot 7 corresponding to the position of the lock installation cavity 10.

[0087] The interior of the housing is divided into a lock installation cavity 10 and a cable installation cavity 11 which are not connected to each other by a partition 9. A groove is provided on the connecting end surface of the partition 9 of one of the first housing 2 and the second housing 3, and a convex strip is provided on the connecting end surface of the partition 9 of the other housing. The groove and the convex strip fit together, and a sealing strip is also embedded in the fitting connecting end surface. An installation hole for installing a waterproof installation box 26 is provided on the partition 9.

[0088] The flange end cover of the gun head 1 is arranged on the first through groove 5. The flange end of the gun head 1 is threadedly connected to the first shell 2 and the second shell 3 respectively; a sealing gasket 12 is embedded between the flange end of the gun head 1 and the first shell 2 and the second shell 3. Usually, a gun head set 62 is covered on the gun head 1.

[0089] The lock assembly and the control assembly are arranged inside the lock installation cavity 10; the cable assembly is arranged inside the cable installation cavity 11; the cable assembly is electrically connected to the gun head 1; the control assembly is electrically connected to the cable assembly. The tail of the cable assembly extends out of the second through slot 6.

[0090] The cable assembly includes a cable 13 , a terminal 14 , a cable sheath 15 , a control element 16 and a retaining frame 17 .

[0091] One end of the cable 13 is provided with a plurality of rubber-coated terminals 14, and the other end of the cable 13 is provided with a rubber-coated cable sheath 15; a control element 16 is provided on the cable 13; the control element 16 and the cable 13 are electrically connected; one end of the cable 13 is electrically connected to the gun head 1 through the plurality of terminals 14; the cable 13 is arranged inside the cable installation cavity 11; the cable sheath 15 is matched and penetrates through the second through slot 6.

[0092] The retainer 17 is arranged inside the cable installation cavity 11; the retainer 17 is threadedly connected to the gun head 1. The retainer 17 is provided with a plurality of through holes; the cable 13 and the terminal 14 of the cable assembly are respectively passed through the plurality of through holes and electrically connected to the gun head 1. A fixed wire head 18 is fixedly arranged at the outer end of the cable sheath 15; a fixed groove is circumferentially provided on the fixed wire head 18; the first shell 2 and the second shell 3 are respectively matched and clamped in the fixed groove.

[0093] The lock assembly includes a lock plate 19, a lock portion 20, a button portion 21, an elastic member 22 and a baffle 23. The middle end of the lock plate 19 is rotatably connected to the first housing 2 and the second housing 3 through a pin shaft. The front end of the lock plate 19 is provided with a lock slot 4 extending out of the lock slot; the lock portion 20 is provided at one end of the lock plate 19 extending out of the lock slot 4; the rear end of the lock plate 19 is threadedly connected to the button portion 21; the first housing 2 and the second housing 3 are provided with a button slot at the upper end of the cable installation cavity 11, and the button portion 21 is provided with a button slot extending out of the button slot.

[0094] The lower end of the button portion 21 is provided with a receiving groove; an elastic member 22 is provided inside the receiving groove; the elastic member 22 can be a compression spring. The other end of the elastic member 22 is in contact with the abutment plate 63; the abutment plate 63 is fixed inside the lock mounting cavity 10. The lower end of the lock plate 19 is provided with a baffle plate 23; the baffle plate 23 is located between the pin shaft and the button portion 21.

[0095] The baffle 23 includes a side baffle 231, a top baffle 232 and a soft moisture-absorbing block 233. The side baffle 231 and the top baffle 232 are fixedly connected to the lower end of the locking plate 19. The side baffle 231 is an annular structure; the inner side surface of the side baffle 231 is circumferentially fixed with a soft moisture-absorbing block 233; the soft moisture-absorbing block 233 can be a sponge block. The longitudinal section of the soft moisture-absorbing block 233 is an inverted right-angled trapezoid. The top of the side baffle 231 is provided with a top baffle 232; the top baffle 232 is provided with a switch through hole 234.

[0096] If water enters the lock installation cavity 10 on a rainy day, the upper water is blocked by the top baffle 232 to prevent it from entering the micro switch 24, and the lower water is absorbed by the soft moisture-absorbing block 233 to prevent it from entering the micro switch 24. As a result, the micro switch 24 is not exposed to the water environment and does not come into contact with water. Even if water enters the lock installation cavity 10 of the housing, the water will not penetrate into the micro switch 24. The waterproof installation box 26 ensures that the signal line and the power supply of the micro switch 24 are also not in contact with water.

[0097] The control assembly includes a micro switch 24, a micro switch mounting seat 25 and a waterproof mounting box 26. The waterproof mounting box 26 is fixedly mounted on the partition 9; the upper end of the waterproof mounting box 26 is fixedly connected to the lower end of the micro switch mounting seat 25. The micro switch mounting seat 25 is located inside the side baffle 231; a card slot is opened in the circumferential direction of the outer side surface of the micro switch mounting seat 25; and a soft moisture-absorbing block 233 is matched and embedded in the inside of the card slot. When the lock plate 19 rotates with the pin shaft, the baffle 23 also rotates with the lock plate 19, and the lock plate 19 is pressed on the micro switch 24. The water at the lower end of the lock mounting cavity 10 can still be absorbed by the soft moisture-absorbing block 233 and prevented from entering the micro switch 24.

[0098] A micro switch 24 is fixedly mounted inside the micro switch mounting seat 25; the micro switch 24 is located below the switch through hole 234; the top of the micro switch 24 abuts against the bottom of the lock plate 19. The signal line of the micro switch 24 is inserted into the waterproof mounting box 26, and one end of the signal line of the micro switch 24 passes through the waterproof mounting box 26 and is electrically connected to the control element 16.

[0099] The waterproof assembly includes a cooling chamber 27 , a moisture collection chamber 28 , an air supply chamber 29 , a heat dissipation main pipe 30 , a heat dissipation branch pipe 31 and a drainage pipe 32 .

[0100] A grip groove 33 is provided at the side end of the moisture collection chamber 28 away from the gun head 1; the cooling chamber 27 and the moisture collection chamber 28 are fixedly connected; the cooling chamber 27 and the moisture collection chamber 28 are embedded in the housing groove 7; the cooling chamber 27 and the housing are threadedly connected.

[0101] Drain holes are provided through the shell and the water collection chamber 28; the two ends of the drainage hole are connected to the inside of the shell and the inside of the water collection chamber 28 respectively; a drainage pipe 32 is fixedly provided in the drainage hole of the shell, and the drainage pipe 32 slightly extends out of the drainage hole of the shell. When the cooling chamber 27 and the water collection chamber are embedded in the shell groove 7, the drainage pipe 32 slightly extends into the drainage hole of the water collection chamber 28. The drainage pipe 32 is located on the top side of the water collection chamber 28 close to the gun head 1; the drainage pipe 32 is arranged horizontally when the charging gun is charging.

[0102] An anti-backflow assembly is provided inside the drain pipe 32 , and the anti-backflow assembly includes a slider 34 , a counterweight 35 and a tension spring 36 .

[0103] One end of the drain pipe 32 close to the gun head 1 is opened with a water inlet 37 connected to the lock mounting cavity 10, and the other end of the drain pipe 32 is blocked.

[0104] A drainage channel 38 is provided inside the drainage pipe 32; the inner diameter of the drainage channel 38 is larger than the inner diameter of the water inlet 37; the drainage channel 38 is connected to the water inlet 37. A slider 34 is slidably connected inside the drainage channel 38; a first drainage port 39 is provided inside the slider 34; the first drainage port 39 is composed of a first transverse drainage port and a first longitudinal drainage port that are connected to each other; the first transverse drainage port is connected to the drainage channel 38.

[0105] A second drain port 40 is provided inside the wall of the drain pipe 32 ; the second drain port 40 is composed of a second transverse drain port and a second longitudinal drain port which are interconnected; and the second transverse drain port is connected to the inside of the moisture collection chamber 28 .

[0106] At least one slider through hole 41 is provided inside the slider 34; the slider through hole 41 is composed of a large-diameter slider through hole 41 and a small-diameter slider through hole 41 that are interconnected; the small-diameter slider through hole 41 is connected to the drainage channel 38. The width of each large-diameter slider through hole 41 is not less than the width of the counterweight 35; a counterweight is placed in the large-diameter slider through hole 41 of each slider through hole 41. The counterweight 35 is fixedly connected to one end of the tension spring 36; the tension spring 36 passes through the small-diameter slider through hole 41; the other end of the tension spring 36 is fixedly connected to the other end of the drainage pipe 32.

[0107] When the tension spring 36 is in a natural state, the first longitudinal drain outlet is connected to the second longitudinal drain outlet; the distance between the vertical end face of the second longitudinal drain outlet close to the gun head 1 and the vertical end face of the first longitudinal drain outlet close to the gun head 1 is not less than the distance between the outer wall of the other end of the slider 34 and the inner wall of the other end of the drainage channel 38; the distance between the vertical end face of the second longitudinal drain outlet close to the gun head 1 and the vertical end face of the first longitudinal drain outlet away from the gun head 1 is less than the distance between the outer wall of one end of the slider 34 and the inner wall of one end of the drainage channel 38.

[0108] When the charging gun is charging, the drain pipe 32 is in a horizontal state and the tension spring 36 is in a natural state; if it rains and water enters the lock mounting cavity 10 of the shell (the interior of the cable mounting cavity 11 is in a closed state and no water enters), the water in the lock mounting cavity 10 of the shell enters the interior of the moisture collection chamber 28 through the drain pipe 32, the first drain port 39, and the second drain port 40, thereby achieving the discharge and collection of rainwater.

[0109] When the charging gun is manually held, if the charging gun tilts toward the gun head 1, since the gravity of the counterweight 35 is greater than the elastic force of the tension spring 36, the slider 34 slides under the action of its own gravity and the gravity of the counterweight 35 until it rests on the inner wall of one end of the drainage channel 38, the first drainage port 39 and the second drainage port 40 are no longer connected, and the slider 34 completely blocks the drainage channel 38, so that the water collected in the moisture collection chamber 28 cannot flow back into the lock mounting cavity 10 of the shell.

[0110] The bottom end of the water collection chamber 28 has a water outlet 281, which protrudes toward the outside of the housing. The water outlet 281 is convenient for discharging water to the outside of the gun body.

[0111] A water outlet plate 42 is fixedly provided on the inner bottom wall of the water collection chamber 28 ; the bottom end surface of the water outlet plate 42 and the top end surface of the water outlet portion 281 are parallel to each other. A water level sensor 43 is provided on the water outlet plate 42 .

[0112] A water outlet hole 44 is provided through the bottom end surface of the water outlet plate 42 and the water collection chamber 28; a rotating plate 45 is provided on the bottom end surface of the water outlet plate 42; a first motor 47 is fixedly provided on the top end surface of the water outlet portion 281; a motor protection cover is provided outside the first motor 47. The output shaft of the first motor 47 passes through the motor protection cover, the water outlet portion 281 and is connected with the connecting rod 48; the connecting rod 48 is fixedly connected with the middle part of the rotating plate 45; a plate through hole 46 connected with the water outlet hole 44 is provided on the rotating plate 45, and the plate through hole 46 does not cover the center of the rotating plate 45.

[0113] A controller 49 and a power supply 50 are provided on the side end surface of the moisture collection chamber 28 that is not in contact with the cooling chamber 27. A wire hole 51 is provided on the moisture collection chamber 28; a wire pipe 52 is provided inside the moisture collection chamber 28; the two ends of the wire pipe 52 are respectively connected to the inside of the air supply chamber 29 and the outside of the moisture collection chamber 28. An adjusting member 53 is threadedly connected to the side end surface of the moisture collection chamber 28 that is not in contact with the cooling chamber 27; the adjusting member 53 is a bolt.

[0114] The water level sensor 43 detects the water level inside the moisture collection chamber 28 in real time; when the water level sensor 43 detects in real time that the water level inside the moisture collection chamber 28 is lower than the set threshold, the through hole 46 on the rotating plate 45 and the water outlet hole 44 are not connected; when the water level sensor 43 detects in real time that the water level inside the moisture collection chamber 28 exceeds the set threshold, the output shaft of the first motor 47 controls the connecting rod 48 and the rotating plate 45 to rotate 180°, at which time the through hole 46 on the rotating plate 45 and the water outlet hole 44 are connected, and the water inside the moisture collection chamber 28 is discharged to the external environment through the water outlet hole 44.

[0115] Therefore, the water outlet 44 is not normally open, but can be normally closed in bad weather to prevent dust, sand, impurities, etc. from the external environment from entering the shell, thereby ensuring the long-term normal operation of the micro switch 24.

[0116] The top and bottom of the cooling chamber 27 are provided with a medium inlet 271 and a medium outlet 272, respectively. Both the medium inlet 271 and the medium outlet 272 protrude toward the outside of the shell. A cooling medium inlet is provided at the top of the medium inlet 271; an elastic sealing block 54 is embedded in the cooling medium inlet. A cooling medium outlet is provided at the bottom of the medium outlet 272; an elastic sealing block 54 is embedded in the cooling medium outlet. Cooling medium is introduced into the cooling chamber 27.

[0117] The space arrangement of the medium inlet 271 and the medium outlet 272 facilitates the input and output of the cooling medium into and from the cooling chamber 27. The cooling medium may be cooling water, which can be poured into the cooling chamber 27 through the cooling medium inlet; the cooling medium may be cooling gas, and the cooling medium inlet and the cooling medium outlet are respectively connected to the cooling gas supply device and the cooling gas recovery device through a hose.

[0118] Two heat dissipation main pipes 30 are respectively fixedly arranged inside the cable installation cavity 11; a sealing ring 55 is fixedly arranged inside the connecting pipe opening of the heat dissipation main pipe 30. The two ends of the heat dissipation branch pipe 31 are respectively tightly arranged inside the sealing rings 55 of the two heat dissipation main pipes 30. The heat dissipation branch pipes 31 pass through the cooling chamber 27 and the moisture collection chamber 28 in sequence; the heat dissipation branch pipes 31 are arranged in a continuous S shape inside the moisture collection chamber 28. A micro air pump is provided on the heat dissipation main pipe 30 (the micro air pump is purchased from a conventional micro air pump on the market, not shown in the figure, and the installation method of the micro air pump is the same as the conventional market).

[0119] The heat dissipation main pipe 30 and the heat dissipation branch pipe 31 play a role in dissipating heat inside the cable installation cavity 11. When the micro air pump is working, the gas inside the cable installation cavity 11 is transported to the cooling chamber 27 and the moisture collection chamber 28, and then transported back to the cable installation cavity 11. The cooling medium cools the gas, and the rainwater collected in the moisture collection chamber 28 also exchanges heat with the gas in the heat dissipation branch pipe 31, which has a certain cooling effect on the gas in the heat dissipation branch pipe 31, thereby realizing the heat dissipation and cooling function of the charging gun during the charging process.

[0120] An air supply assembly is provided in the air supply chamber 29. The air supply assembly includes a base 56, a second motor 57 and a fan 58. The base 56 is arranged in an inclined manner. The second motor 57 is fixedly provided on the upper end of the base 56; the output shaft of the second motor 57 is fixedly connected to the fan 58; a plurality of ventilation holes 59 are provided on the four sides and the top surface of the air supply chamber 29; a fixing frame 60 is fixedly provided on the outer end of the waterproof installation box 26; an elastic ring 61 is fixedly provided on the inner side of the fixing frame 60 in a circumferential direction; and the upper end of the air supply chamber 29 is tightly fitted and clamped inside the elastic ring 61.

[0121] The bottom plate of the air supply chamber 29 is detachable. After the base 56, the second motor 57 and the fan 58 are installed on the bottom plate, the bottom plate is detachably connected to the lower end of the side plate of the air supply chamber 29, and the bottom plate and the side plate of the air supply chamber 29 can be snap-fitted, threaded, etc.

[0122] The second motor 57 drives the entire fan 58 to rotate, so that the fan 58 rotates as a whole; the fan 58 itself has a motor inside, and this motor drives the blades of the fan 58 to rotate, and the fan 58 works. Therefore, during the rotation process, the fan 58 continuously delivers wind to the ventilation holes 59 on the surroundings, and then delivers wind to the lock mounting cavity 10 through the ventilation holes 59 on the surroundings. Therefore, even if a small amount of accumulated water or a small amount of water droplets remain inside the lock mounting cavity 10, during the air supply process of the fan 58, the small amount of accumulated water or a small amount of water droplets will be blown dry quickly, and the interior of the lock mounting cavity 10 including the micro switch 24 is in a dry environment, which is conducive to its normal operation.

[0123] A power supply 50 is provided inside the waterproof installation box 26; the power supply 50 is electrically connected to the micro switch 24 and the micro air pump. The water level sensor 43 is electrically connected to the controller 49; the controller 49 is electrically connected to the first motor 47, the second motor 57, the fan 58, and the micro air pump; the power supply 50 is electrically connected to the first motor 47, the second motor 57, and the fan 58.

[0124] Working principle: first, the air supply chamber 29 is tightly fitted into the sealing ring 55 in the fixing frame 60, and then the cooling chamber 27 and the moisture collection chamber 28 are installed in the housing groove 7; at this time, the lower end of the air supply chamber 29 and the lower end of the moisture collection chamber 28 are abutted, the wiring in the air supply chamber 29 is electrically connected to the controller 49 through the wire tube 52, and the wiring of the water level sensor 43 is electrically connected to the controller 49 through the wire hole 51, the fixing rod on the cooling chamber 27 is in contact with the fixing rod on the first housing 2, and the two fixing rods in contact are threaded with screws 8, and the drain pipe 32 is slightly extended into the drain through hole of the moisture collection chamber 28, and then the adjusting member 53 is screwed out, and the heat dissipation air duct is pushed into the sealing ring 55 of the heat dissipation main pipe 30 to achieve the installation of the waterproof component;

[0125] When the charging gun is charging, the locking part 20 is buckled into the groove of the charging part of the electric vehicle. At this time, the locking part 20 rotates upward along the pin axis, and the button part 21 and the baffle plate 23 rotate downward along the pin axis. The button part 21 presses the elastic member 22 downward, and the locking plate 19 presses on the micro switch 24. The micro switch 24 transmits the signal to the control element 16 through the signal line, and the control element 16 transmits the signal to the cable 13. At this time, the circuit between the power supply external to the cable 13, the cable 13, the gun head 1 and the charging part of the electric vehicle is connected, and the charging operation is realized; the electric vehicle is charged After completion, the button part 21 is pressed, the lock part 20 rotates along the pin shaft and lifts upward, the lock part 20 is disengaged from the groove of the charging part of the electric vehicle, and the charging gun is pulled out from the charging part of the electric vehicle. After releasing the button part 21, the button part 21 returns to its original position under the action of the elastic member 22. At this time, the lock plate 19 no longer presses the micro switch 24, and the micro switch 24 no longer transmits the signal to the control element 16 through the signal line. At this time, the circuit between the power supply external to the cable 13, the cable 13, the gun head 1 and the charging part of the electric vehicle is no longer conductive, and the charging operation is stopped;

[0126] On rainy days, if rainwater enters the lock mounting cavity 10, the rainwater will flow into the drain pipe 32 and then into the water collection chamber 28; when the amount of water is small, the water level sensor 43 detects in real time that the water level inside the water collection chamber 28 is lower than the set threshold, at which time the through hole 46 on the upper plate of the rotating plate 45 and the water outlet hole 44 are not connected; when the amount of water accumulates and the water level sensor 43 detects in real time that the water level inside the water collection chamber 28 exceeds the set threshold, the output shaft of the first motor 47 controls the connecting rod 48 and the rotating plate 45 to rotate 180°, at which time the through hole 46 on the upper plate of the rotating plate 45 and the water outlet hole 44 are connected, and the water inside the water collection chamber 28 is discharged to the external environment through the water outlet hole 44;

[0127] The heat dissipation main pipe 30 and the heat dissipation branch pipe 31 cool down and dissipate the gas inside the cable installation cavity 11; the air supply chamber 29 continuously delivers air to the interior of the lock installation cavity 10. Even if a small amount of accumulated water or a small amount of water droplets remain inside the lock installation cavity 10, the accumulated water or the small amount of water droplets can be blown dry quickly, which is beneficial to the normal operation of the micro switch 24.

[0128] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A charging gun, comprising a gun head (1), a housing, a locking assembly, a cable assembly, a control assembly and a waterproof assembly; characterized in that: The shell comprises a head and a tail portion which are integrally connected; the interior of the shell is divided into a lock installation cavity (10) and a cable installation cavity (11) which are not connected to each other by a partition (9); a shell groove (7) is reserved at the tail portion of the shell at a position corresponding to the lock installation cavity (10); a lock assembly and a control assembly are arranged inside the lock installation cavity (10); a cable assembly is arranged inside the cable installation cavity (11); the cable assembly is electrically connected to the gun head (1); the control assembly is electrically connected to the cable assembly; the shell is provided with a first through groove (5) and a second through groove (6) at the head end and the tail end of the cable installation cavity (11), respectively; the gun head (1) is covered on the first through groove (5); the tail portion of the cable assembly extends out of the second through groove (6); The waterproof component comprises a cooling chamber (27), a moisture collection chamber (28), an air supply chamber (29), a heat dissipation main pipe (30), a heat dissipation branch pipe (31) and a drainage pipe (32); a side end of the moisture collection chamber (28) away from the gun head (1) is provided with a grip groove (33); the cooling chamber (27) and the moisture collection chamber (28) are fixedly connected; the cooling chamber (27) and the moisture collection chamber (28) are embedded in the interior of the housing groove (7); the cooling chamber (27) and the housing are detachably connected; a drainage pipe (32) is provided on the housing and is connected to the interior of the moisture collection chamber (28); the drainage pipe The interior of the cable installation cavity (11) is provided with an anti-backflow component; the bottom end of the moisture collection chamber (28) is provided with a water outlet (44); a cooling medium is introduced into the cooling chamber (27); the two heat dissipation main pipes (30) are respectively fixedly arranged inside the cable installation cavity (11); the two ends of the heat dissipation branch pipe (31) are respectively connected to the heat dissipation main pipe (30); the heat dissipation branch pipe (31) passes through the cooling chamber (27) and the moisture collection chamber (28) in sequence; the side end surface of the moisture collection chamber (28) not in contact with the cooling chamber (27) is detachably provided with an adjusting member (53); and an air supply component is provided in the air supply chamber (29).

2. A charging gun according to claim 1, characterized in that: The shell package comprises a first shell (2) and a second shell (3); The first shell (2) comprises a head portion and a tail portion connected in one piece; the tail portion of the first shell (2) is arranged obliquely downward; the second shell (3) comprises a head portion and a tail portion connected in one piece; the tail portion of the second shell (3) is arranged obliquely downward; The first shell (2) and the second shell (3) are sealed and engaged with each other; the first shell (2) and the second shell (3) are threadedly connected; The first shell (2) and the second shell (3) are provided with a lock slot (4) at one end of the head of the lock installation cavity (10); The flange end of the gun head (1) is threadedly connected to the first shell (2) and the second shell (3) respectively; and a sealing gasket (12) is embedded between the flange end of the gun head (1) and the first shell (2) and the second shell (3).

3. A charging gun according to claim 2, characterized in that: The cable assembly comprises a cable (13), a terminal (14), a cable sheath (15), a control element (16) and a retaining frame (17); One end of the cable (13) is provided with a plurality of rubber-coated terminals (14), and the other end of the cable (13) is provided with a rubber-coated cable sheath (15); a control element (16) is provided on the cable (13); the control element (16) and the cable (13) are electrically connected; one end of the cable (13) is electrically connected to the gun head (1) via the plurality of terminals (14); the cable (13) is arranged inside the cable installation cavity (11); the cable sheath (15) is matched and penetrates through the second through slot (6); The retaining frame (17) is arranged inside the cable installation cavity (11); the retaining frame (17) and the gun head (1) are threadedly connected; The retaining frame (17) is provided with a plurality of through holes; the cables (13) and terminals (14) of the cable assembly are respectively passed through the plurality of through holes and are electrically connected to the gun head (1); A wire fixing head (18) is fixedly provided at the outer end of the cable sheath (15); a fixing groove is circumferentially provided on the wire fixing head (18); and the first shell (2) and the second shell (3) are respectively matched and clamped in the fixing groove.

4. A charging gun according to claim 3, characterized in that: The lock assembly comprises a lock plate (19), a lock portion (20), a button portion (21), an elastic member (22) and a baffle (23); The middle end of the locking plate (19) is rotatably connected to the first shell (2) and the second shell (3) via a pin; The front end of the locking plate (19) is penetrated by the locking slot (4); the locking portion (20) is provided at one end of the locking plate (19) that extends out of the locking slot (4); The rear end of the locking plate (19) is threadedly connected to the button portion (21); the first housing (2) and the second housing (3) are provided with a button slot at the upper end of the cable installation cavity (11), and the button portion (21) extends through the button slot; A receiving groove is provided at the lower end of the button portion (21); an elastic member (22) is provided inside the receiving groove; the other end of the elastic member (22) is in contact with an abutment plate (63); the abutment plate (63) is fixed inside the lock buckle installation cavity (10); A baffle (23) is provided at the lower end of the locking plate (19); the baffle (23) is located between the pin shaft and the button portion (21).

5. A charging gun according to claim 4, characterized in that: The baffle (23) comprises a side baffle (231), a top baffle (232) and a soft moisture-absorbing block (233); The side baffle plate (231) and the top baffle plate (232) are both fixedly connected to the lower end of the locking plate (19); The side baffle (231) is an annular structure; the soft moisture-absorbing block (233) is fixedly provided circumferentially on the inner side surface of the side baffle (231); the longitudinal section of the soft moisture-absorbing block (233) is an inverted right-angled trapezoid; The top end of the side baffle (231) is provided with the top baffle (232); the top baffle (232) is provided with a switch through hole (234).

6. A charging gun according to claim 5, characterized in that: The control assembly comprises a micro switch (24), a micro switch mounting seat (25) and a waterproof mounting box (26); The waterproof installation box (26) is fixedly mounted on the partition (9); the upper end of the waterproof installation box (26) is fixedly connected to the lower end of the micro switch mounting seat (25); The micro switch mounting seat (25) is located inside the side baffle (231); a slot is circumferentially provided on the outer side surface of the micro switch mounting seat (25); and the soft moisture absorbing block (233) is matched and embedded in the slot; The micro switch (24) is fixedly mounted inside the micro switch mounting seat (25); the micro switch (24) is located below the switch through hole (234); the top end of the micro switch (24) abuts against the bottom end of the locking plate (19); The signal line of the micro switch (24) is inserted into the interior of the waterproof installation box (26), and one end of the signal line of the micro switch (24) passes out of the waterproof installation box (26) and is electrically connected to the control element (16).

7. A charging gun according to claim 6, characterized in that: The bottom end of the moisture collection chamber (28) has a water outlet (281); the water outlet (281) protrudes toward the outside of the shell; A water outlet plate (42) is fixedly provided on the inner bottom wall of the moisture collection chamber (28); the bottom end surface of the water outlet plate (42) and the top end surface of the water outlet portion (281) are parallel to each other; The water outlet plate (42) is provided with a water level sensor (43); A water outlet hole (44) is formed on the bottom end surface of the water outlet plate (42) and the water collection chamber (28); a rotating plate (45) is provided on the bottom end surface of the water outlet plate (42); a first motor (47) is fixedly provided on the top end surface of the water outlet portion (281); an output shaft of the first motor (47) passes through the water outlet portion (281) and is connected to a connecting rod (48); the connecting rod (48) is fixedly connected to the middle portion of the rotating plate (45); a plate through hole (46) is formed on the rotating plate (45) and is connected to the water outlet hole (44); the plate through hole (46) does not cover the center of the rotating plate (45); A controller (49) and a power supply (50) are provided on the side end surface of the moisture collection chamber (28) that is not in contact with the cooling chamber (27); The drainage pipe (32) is located on one side of the top end of the moisture collection chamber (28) close to the gun head (1); the drainage pipe (32) is arranged horizontally when the charging gun is charging; The moisture collection chamber (28) is provided with a wire passing hole (51); a wire passing pipe (52) is provided inside the moisture collection chamber (28); two ends of the wire passing pipe (52) are respectively connected to the inside of the air supply chamber (29) and the outside of the moisture collection chamber (28).

8. A charging gun according to claim 7, characterized in that: A sealing ring (55) is fixedly disposed inside the connecting pipe opening of the heat dissipation main pipe (30); The two ends of the heat dissipation branch pipe (31) are respectively tightly mounted inside the sealing rings (55) of the two heat dissipation main pipes (30); The heat dissipation pipes (31) are arranged in a continuous S-shape inside the moisture collection chamber (28); The heat dissipation main pipe (30) is provided with a micro air pump; The top end and the bottom end of the cooling chamber (27) are respectively provided with a medium inlet portion (271) and a medium outlet portion (272); the medium inlet portion (271) and the medium outlet portion (272) both protrude toward the outside of the shell; A cooling medium inlet is provided at the top end of the medium inlet portion (271); a cooling medium outlet is provided at the bottom end of the medium outlet portion (272); A power supply (50) is provided inside the waterproof installation box (26); the power supply (50) is electrically connected to the micro switch (24) and the micro air pump respectively.

9. A charging gun according to claim 8, characterized in that: The air supply assembly comprises a base (56), a second motor (57) and a fan (58); The base (56) is arranged in an inclined manner; the second motor (57) is fixedly provided on the upper end of the base (56); The output shaft of the second motor (57) is fixedly connected to the fan (58); The air supply chamber (29) is provided with a plurality of ventilation holes (59) on the sides and the top surface thereof; A fixing frame (60) is fixedly provided at the outer end of the waterproof installation box (26); an elastic ring (61) is fixedly provided circumferentially on the inner side of the fixing frame (60); and the upper end of the air supply chamber (29) is tightly clamped inside the elastic ring (61); The water level sensor (43) is electrically connected to the controller (49); the controller (49) is electrically connected to the first motor (47), the second motor (57), the fan (58), and the micro air pump; and the power supply (50) is electrically connected to the first motor (47), the second motor (57), and the fan (58).

10. A charging gun according to claim 9, characterized in that: The backflow prevention assembly comprises a slider (34), a counterweight (35) and a tension spring (36); One end of the drainage pipe (32) close to the gun head (1) is provided with a water inlet (37) connected to the lock mounting cavity (10), and the other end of the drainage pipe (32) is blocked; A drainage channel (38) is provided inside the drainage pipe (32); the inner diameter of the drainage channel (38) is larger than the inner diameter of the water inlet (37); the drainage channel (38) is connected to the water inlet (37); The sliding block (34) is matched and slidably connected in the drainage channel (38); A first drain port (39) is provided inside the sliding block (34); the first drain port (39) is composed of a first transverse drain port and a first longitudinal drain port that are interconnected; the first transverse drain port is connected to the drainage channel (38); A second drainage port (40) is provided inside the wall of the drainage pipe (32); the second drainage port (40) is composed of a second transverse drainage port and a second longitudinal drainage port which are interconnected; the second transverse drainage port is connected to the interior of the moisture collection chamber (28); At least one slider through hole (41) is formed inside the slider (34); the slider through hole (41) is composed of a large-diameter slider through hole and a small-diameter slider through hole that are interconnected; the small-diameter slider through hole is connected to the drainage channel (38); A counterweight block is placed in the large-diameter slider through hole of each slider through hole (41); the counterweight block (35) is fixedly connected to one end of the tension spring (36); the tension spring (36) passes through the small-diameter slider through hole; the other end of the tension spring (36) is fixedly connected to the other end of the drain pipe (32); When the tension spring (36) is in a natural state, the first longitudinal drain port is connected to the second longitudinal drain port; the distance between the vertical end face of the second longitudinal drain port close to the direction of the gun head (1) and the vertical end face of the first longitudinal drain port close to the direction of the gun head (1) is not less than the distance between the outer wall of the other end of the slider (34) and the inner wall of the other end of the drainage channel (38); the distance between the vertical end face of the second longitudinal drain port close to the direction of the gun head (1) and the vertical end face of the first longitudinal drain port away from the direction of the gun head (1) is less than the distance between the outer wall of one end of the slider (34) and the inner wall of one end of the drainage channel (38).

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