Charging gun locking structure for charging pile

Abstract

The charging gun locking structure comprises a charging shell, an assembling opening is formed in the right end of the charging shell, a power connection seat is connected into the assembling opening, a charging opening is formed in the right end of the power connection seat, and a plurality of contact pins are connected to the left side of the inner wall of the charging opening. The left ends of the multiple contact pins are jointly connected with a power circuit board, the lower end of the power circuit board is externally connected with a power source through a wire, a charging head is inserted into the charging port, a butt joint is arranged at the left end of the charging head, the right end of the charging head is connected with a holding gun support, and a charging cable penetrates through the holding gun support. The charging cable is electrically connected with the butt joint; the structure design is reasonable, an operator can align the charging head with the power connection seat conveniently, the charging head can be locked and fixed, the stability is high, the dustproof shell is used for carrying out dustproof protection on the charging port, and convenience and rapidness are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of charging piles, and in particular to a charging gun locking structure for a charging pile. Background Art

[0002] The function of the charging pile is similar to that of a gas pump in a gas station. It can be fixed on the ground or on a wall and installed in parking lots or charging stations in public buildings and residential areas. It can charge electric vehicles of various models according to different voltage levels. The existing charging pile includes a device body, a control assembly is provided at the right end of the device body, and a charging gun assembly is provided at the front end of the device body.

[0003] Charging piles generally provide two charging methods: conventional charging and fast charging. People can use a specific charging card to swipe the card on the human-machine interactive operation interface provided by the charging pile to perform corresponding charging methods, charging time, and cost data printing. The charging pile display can display data such as charging amount, cost, and charging time. Therefore, the development of charging piles is as important as the development of electric vehicle technology.

[0004] In the prior art, the charging gun is usually hung directly on the charging pile, which makes it easy for the charging gun to fall off; another method is to directly set a buckle to fix the charging gun on the charging pile, so that when taking it out, the buckle needs to be unlocked, which is inconvenient. To this end, we propose a charging gun locking structure for a charging pile. Summary of the invention

[0005] The purpose of the present invention is to provide a charging gun locking structure for a charging pile to overcome the technical problems existing in the prior art.

[0006] In order to achieve the above technical objectives and the above technical effects, the present invention provides the following technical solutions:

[0007] A charging gun locking structure for a charging pile comprises a charging shell, an assembly port is provided at the right end of the charging shell, a power socket is connected in the assembly port, a charging port is provided at the right end of the power socket, a plurality of pins are connected to the left side of the inner wall of the charging port, the left ends of the plurality of pins are commonly connected to a power circuit board, the lower end of the power circuit board is connected to an external power source through a wire, a charging head is plugged into the charging port, a docking connector is provided at the left end of the charging head, a holding stock is connected to the right end of the charging head, a charging cable is passed through the holding stock, and the charging cable is electrically connected to the docking connector.

[0008] Preferably, in a charging gun locking structure for a charging pile, the left side wall of the power socket is rotatably connected to a steering shaft, the left end of the steering shaft is connected to a circular rotating disk, the outer wall of the steering shaft is connected to a spur gear, the outer side of the left side wall of the power socket is connected to a protective shell, the protective shell is circumferentially provided with four circular through holes, push-pull rods are movably inserted in the circular through holes, a traction rod is hinged between the push-pull rod and the circular rotating disk through a pin shaft, the outer wall of the push-pull rod is connected to a fixed retaining ring, and a reset spring is connected between the fixed retaining ring and the inner wall of the protective shell.

[0009] Preferably, in a charging gun locking structure for a charging pile, four clearance openings are circumferentially opened in the middle part of the outer wall of the power socket, four side brackets are circumferentially connected to the left side of the outer wall of the power socket, the end of the side bracket is rotatably connected to a locking rod, the right end of the locking rod is connected to a pin, the pin passes through the clearance opening, a limiting groove is opened on the left part of the locking rod, a guide wheel is rotatably arranged in the limiting groove, the end of the guide wheel is rotatably connected to a U-shaped frame, and the U-shaped frame is fixed to the end of the push-pull rod.

[0010] Preferably, in a charging gun locking structure for a charging pile, the left side wall of the power socket is connected to a guide rail, a movable socket is slidably connected to the guide rail, a metal rectangular bar is connected to the left end of the movable socket, a tooth groove is provided on the side of the metal rectangular bar close to the steering shaft, the tooth groove is meshed with a spur gear, an electromagnet is provided under the guide rail, and the electromagnet is fixedly installed on the left end of the power socket.

[0011] Preferably, in a charging gun locking structure for a charging pile, a battery is connected to the bottom wall of the charging shell, slots are provided at the front and rear inner walls of the power socket, and the battery and the electromagnet are connected in series in sequence between the two slots through a wire.

[0012] Preferably, in a charging gun locking structure for a charging pile, fixed metal strips are symmetrically connected to the front and rear ends of the charging head, a slide is provided on the top of the charging head, a conductive sheet is connected between the fixed metal strip and the left side of the inner wall of the slide, a guide rod is connected between the left end of the slide and the holding stock, the outer movable sleeve of the guide rod is provided with a movable metal strip, the left part of the guide rod is provided with a first spring, four pin holes are circumferentially provided on the outer wall of the charging head, and the slide is located between two adjacent pin holes.

[0013] Preferably, in a charging gun locking structure for a charging pile, the movable metal bar is provided with a guide hole in the horizontal direction, a plurality of positioning grooves are provided at equal distances at the bottom of the movable metal bar, and a push block is connected to the right side of the top of the movable metal bar.

[0014] Preferably, in a locking structure of a charging gun for a charging pile, a stepped opening is provided on the top of the holding stock, the stepped opening is staggered with the charging cable, a traction rope passes through the stepped opening, a pull ring is connected to the lower end of the traction rope, a wedge block matching the positioning groove is connected to the upper end of the traction rope, and a second spring is connected between the wedge block and the stepped surface of the stepped opening.

[0015] Preferably, in a charging gun locking structure for a charging pile, both the first spring and the second spring are compression springs.

[0016] Preferably, in a charging gun locking structure for a charging pile, the right end of the charging shell is rotatably connected to a dustproof shell via a pin shaft.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The structural design of the present invention is reasonable. By fixing the metal strip and the slot, the charging head can be inserted accurately. The pin can be inserted into the docking connector, so that the charging cable and the power circuit board form a passage. The external power supply can charge the vehicle. By holding the butt, the operator can align the charging head with the power socket.

[0019] 2. The present invention uses an electromagnet to magnetically adsorb the metal rectangular bar, and the steering shaft rotates after the tooth groove meshes with the transmission spur gear. The circular turntable drives the traction rod to deflect and then the push-pull rod extends out of the protective shell, so that the locking rod deflects around the side bracket, and the pin column penetrates the clearance opening and extends into the pin hole, so that the charging head can be locked and fixed, and the stability is high;

[0020] 3. The movable metal bar in the present invention can extend into the left side of the slideway along the guide rod, so that a passage is formed between the movable metal bar, the conductive sheet, the fixed metal bar, the electromagnet and the battery, which is convenient for realizing the magnetization of the electromagnet by powering on. After charging is completed, the pull ring is pulled, and the pin column is separated from the pin hole after the electromagnet is powered off, which is convenient for pulling out the charging head. The dustproof shell is used to protect the charging port from dust, which is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a side structural diagram of the guide rail in the present invention;

[0024] Figure 3 for Figure 2 Schematic diagram of the cross section at AA in the middle;

[0025] Figure 4 It is a side view structural diagram of the circular turntable in the present invention;

[0026] Figure 5 It is a structural schematic diagram of the power socket in the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the charging head in the present invention;

[0028] Figure 7 It is a side view structural diagram of the charging head in the present invention;

[0029] Figure 8 It is a schematic diagram of the structure of the movable metal strip in the present invention.

[0030] In the figure: 1. Charging shell; 2. Power socket; 3. Charging port; 4. Pin; 5. Power circuit board; 6. Charging head; 7. Connector; 8. Grip stock; 9. Charging cable; 101. Battery; 102. Dust cover; 201. Steering shaft; 202. Round turntable; 203. Spur gear; 204. Protective shell; 205. Round through hole; 206. Push-pull rod; 207. Towing rod; 208. Fixed retaining ring; 209. Return spring; 211. Make way; 212. Side bracket; 213. Locking rod; 214. Pin; 215. Limit Groove; 216, guide wheel; 217, U-shaped frame; 221, guide rail; 222, moving seat; 223, metal rectangular strip; 224, tooth groove; 225, electromagnet; 231, slot; 601, fixed metal strip; 602, slideway; 603, conductive sheet; 604, guide rod; 605, movable metal strip; 606, pin hole; 607, first spring; 651, guide hole; 652, positioning groove; 653, push block; 801, step opening; 802, traction rope; 803, pull ring; 804, wedge block; 805, second spring. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Embodiment 1

[0033] See also Figure 1As shown, this embodiment is a charging gun locking structure for a charging pile, including a charging shell 1, an assembly port is opened at the right end of the charging shell 1, a power socket 2 is connected in the assembly port, a charging port 3 is opened at the right end of the power socket 2, a plurality of pins 4 are connected to the left side of the inner wall of the charging port 3, and the left ends of the plurality of pins 4 are commonly connected to a power circuit board 5, the lower end of the power circuit board 5 is connected to an external power source through a wire, a charging head 6 is plugged into the charging port 3, a docking connector 7 is provided at the left end of the charging head 6, a holding stock 8 is connected to the right end of the charging head 6, a charging cable 9 is passed through the holding stock 8, and the charging cable 9 is electrically connected to the docking connector 7.

[0034] The specific implementation of this embodiment is as follows:

[0035] In this embodiment, the charging head 6 is inserted into the power socket 2 along the charging port 3, and the pin 4 can be extended into the docking connector 7, so that the charging cable 9 and the power circuit board 5 form a passage, and the external power supply can charge the vehicle. By setting the holding stock 8, the operator can easily align the charging head 6 with the power socket 2.

[0036] Embodiment 2

[0037] See also Figure 1-5 As shown, on the basis of Example 1, the left side wall center of the power socket 2 is rotatably connected to a steering shaft 201, the left end of the steering shaft 201 is connected to a circular rotating disk 202, the outer wall of the steering shaft 201 is connected to a spur gear 203, and the outer side of the left side wall of the power socket 2 is connected to a protective shell 204, the protective shell 204 is circumferentially provided with four circular through holes 205, and a push-pull rod 206 is movably inserted in the circular through holes 205, and a traction rod 207 is hinged between the push-pull rod 206 and the circular rotating disk 202 through a pin shaft, the outer wall of the push-pull rod 206 is connected to a fixed retaining ring 208, and a reset spring 209 is connected between the fixed retaining ring 208 and the inner wall of the protective shell 204.

[0038] Four clearance openings 211 are circumferentially opened in the middle part of the outer wall of the power socket 2, and four side brackets 212 are circumferentially connected to the left side of the outer wall of the power socket 2. The end of the side bracket 212 is rotatably connected to a locking rod 213, and the right end of the locking rod 213 is connected to a pin 214, and the pin 214 passes through the clearance opening 211. A limiting groove 215 is opened on the left part of the locking rod 213, and a guide wheel 216 is rotatably arranged in the limiting groove 215. The end of the guide wheel 216 is rotatably connected to a U-shaped frame 217, and the U-shaped frame 217 is fixedly connected to the end of the push-pull rod 206.

[0039] The left side wall of the power socket 2 is connected to a guide rail 221, and a movable seat 222 is slidably connected to the guide rail 221. The left end of the movable seat 222 is connected to a metal rectangular bar 223. The metal rectangular bar 223 is provided with a tooth groove 224 on the side close to the steering shaft 201. The tooth groove 224 is meshed and connected to the spur gear 203. An electromagnet 225 is provided below the guide rail 221 and is fixedly installed on the left end of the power socket 2.

[0040] The bottom wall of the charging shell 1 is connected to the battery 101, and the inner wall of the power socket 2 is provided with slots 231 at the front and rear. The battery 101 and the electromagnet 225 are connected in series in sequence through a wire between the two slots 231.

[0041] The specific implementation of this embodiment is as follows:

[0042] In this embodiment, when the battery 101 and the electromagnet 225 form a passage, the electromagnet 225 can magnetically adsorb the metal rectangular bar 223, and use the guide rail 221 to cooperate with the moving seat 222 for limiting guidance. After the metal rectangular bar 223 moves, the tooth groove 224 engages with the transmission spur gear 203, and the steering shaft 201 can drive the round turntable 202 to rotate. After the traction rod 207 is deflected, the push-pull rod 206 extends out of the protective shell 204 along the round through hole 205, and the guide wheel 216 can move in the limiting groove 215, so that the locking rod 213 deflects around the side bracket 212, and then the pin 214 passes through the yielding port 211, so that the charging head 6 can be locked and fixed.

[0043] Embodiment 3

[0044] See also Figure 1-8 As shown, on the basis of the second embodiment, the front and rear ends of the charging head 6 are symmetrically connected with fixed metal strips 601, a slide 602 is provided on the top of the charging head 6, a conductive sheet 603 is connected between the fixed metal strip 601 and the left side of the inner wall of the slide 602, a guide rod 604 is connected between the left end of the slide 602 and the holding butt 8, a movable metal strip 605 is provided on the outer movable sleeve of the guide rod 604, a first spring 607 is provided on the left part of the guide rod 604, four pin holes 606 are provided in the circumferential direction of the outer wall of the charging head 6, and the slide 602 is located between two adjacent pin holes 606.

[0045] The movable metal bar 605 is provided with a guide hole 651 in the horizontal direction, a plurality of positioning grooves 652 are provided at equal intervals at the bottom of the movable metal bar 605 , and a push block 653 is connected to the right side of the top of the movable metal bar 605 .

[0046] A stepped opening 801 is provided on the top of the gun holding stock 8, and the stepped opening 801 is staggered with the charging cable 9. A traction rope 802 runs through the stepped opening 801, and a pull ring 803 is connected to the lower end of the traction rope 802. A wedge block 804 that cooperates with the positioning groove 652 is connected to the upper end of the traction rope 802, and a second spring 805 is connected between the wedge block 804 and the stepped surface of the stepped opening 801.

[0047] The first spring 607 and the second spring 805 are both compression springs, and can be elastically reset after the external force is removed.

[0048] The right end of the charging shell 1 is rotatably connected to a dustproof shell 102 via a pin shaft, which can cover the charging port 3 to prevent dust when idle.

[0049] The specific implementation of this embodiment is as follows:

[0050] In this embodiment, the fixed metal strip 601 cooperates with the slot 231 to facilitate accurate insertion of the charging head 6, and the push block 653 is used to push the movable metal strip 605 to the left, and the upper end of the wedge block 804 extends into the positioning groove 652 to position the movable metal strip 605. The movable metal strip 605 can extend into the left side of the slideway 602 along the guide rod 604, and finally a passage is formed between the movable metal strip 605, the conductive sheet 603, the fixed metal strip 601, the electromagnet 225 and the battery 101, so that the electromagnet 225 is energized and magnetized. At this time, the pin 214 extends into the pin hole 606 to lock the charging head 6, and the stability is high. After charging is completed, the pull ring 803 is pulled, and after the wedge block 804 is separated from the positioning groove 652, the first spring 607 drives the movable metal strip 605 to reset. After the electromagnet 225 is powered off, the pin 214 resets and disengages from the pin hole 606, which facilitates the removal of the charging head 6, which is convenient and quick.

[0051] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0052] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A charging gun locking structure for a charging pile, comprising a charging shell (1), characterized in that: The right end of the charging shell (1) is provided with an assembly port, and a power socket (2) is connected to the assembly port. The right end of the power socket (2) is provided with a charging port (3). The left side of the inner wall of the charging port (3) is connected with a plurality of pins (4). The left ends of the plurality of pins (4) are commonly connected with a power circuit board (5). The lower end of the power circuit board (5) is connected to an external power source through a wire. A charging head (6) is plugged into the charging port (3). A docking connector (7) is provided at the left end of the charging head (6). A gun holding stock (8) is connected to the right end of the charging head (6). A charging cable (9) is inserted into the gun holding stock (8), and the charging cable (9) is electrically connected to the docking connector (7).

2. A charging gun locking structure for a charging pile according to claim 1, characterized in that: The left side wall center of the power receiving seat (2) is rotatably connected to a steering shaft (201), the left end of the steering shaft (201) is connected to a circular rotating disk (202), the outer wall of the steering shaft (201) is connected to a spur gear (203), the outer side of the left side wall of the power receiving seat (2) is connected to a protective shell (204), the protective shell (204) is provided with four circular through holes (205) in the circumference, a push-pull rod (206) is movably inserted in the circular through hole (205), a traction rod (207) is hinged between the push-pull rod (206) and the circular rotating disk (202) via a pin shaft, the outer wall of the push-pull rod (206) is connected to a fixed retaining ring (208), and a return spring (209) is connected between the fixed retaining ring (208) and the inner wall of the protective shell (204).

3. The locking structure of a charging gun for a charging pile according to claim 2, characterized in that: Four clearance openings (211) are circumferentially provided at the middle part of the outer wall of the power receiving socket (2); four side brackets (212) are circumferentially connected to the left side of the outer wall of the power receiving socket (2); the ends of the side brackets (212) are rotatably connected to locking rods (213); the right end of the locking rod (213) is connected to a pin (214); the pin (214) passes through the clearance opening (211); a limiting groove (215) is provided at the left part of the locking rod (213); a guide wheel (216) is rotatably provided in the limiting groove (215); the end of the guide wheel (216) is rotatably connected to a U-shaped frame (217); the U-shaped frame (217) is fixedly connected to the end of the push-pull rod (206).

4. The locking structure of a charging gun for a charging pile according to claim 2, characterized in that: The left side wall of the power receiving seat (2) is connected to a guide rail (221), a movable seat (222) is slidably connected to the guide rail (221), a metal rectangular bar (223) is connected to the left end of the movable seat (222), a tooth groove (224) is provided on the side of the metal rectangular bar (223) close to the steering shaft (201), the tooth groove (224) is meshedly connected to the spur gear (203), an electromagnet (225) is provided below the guide rail (221), and the electromagnet (225) is fixedly mounted on the left end of the power receiving seat (2).

5. The locking structure of a charging gun for a charging pile according to claim 4, characterized in that: The bottom wall of the charging shell (1) is connected to a storage battery (101), and slots (231) are provided at the front and rear inner walls of the power receiving socket (2), and the storage battery (101) and the electromagnet (225) are connected in series in sequence via a wire between the two slots (231).

6. The locking structure of a charging gun for a charging pile according to claim 1, characterized in that: The front and rear ends of the charging head (6) are symmetrically connected with fixed metal strips (601), the top of the charging head (6) is provided with a slideway (602), a conductive sheet (603) is connected between the fixed metal strip (601) and the left side of the inner wall of the slideway (602), a guide rod (604) is connected between the left end of the slideway (602) and the holding buttstock (8), the outer movable sleeve of the guide rod (604) is provided with a movable metal strip (605), the left part of the guide rod (604) is provided with a first spring (607), the outer wall of the charging head (6) is circumferentially provided with four pin holes (606), and the slideway (602) is located between two adjacent pin holes (606).

7. A charging gun locking structure for a charging pile according to claim 6, characterized in that: The movable metal bar (605) is provided with a guide hole (651) in the horizontal direction, a plurality of positioning grooves (652) are provided at equal distances at the bottom of the movable metal bar (605), and a push block (653) is connected to the right side of the top of the movable metal bar (605).

8. The locking structure of a charging gun for a charging pile according to claim 7, characterized in that: A stepped opening (801) is provided on the top of the holding stock (8), and the stepped opening (801) is staggered with the charging cable (9). A traction rope (802) runs through the stepped opening (801), and a pull ring (803) is connected to the lower end of the traction rope (802). A wedge block (804) that matches the positioning groove (652) is connected to the upper end of the traction rope (802), and a second spring (805) is connected between the wedge block (804) and the stepped surface of the stepped opening (801).

9. A charging gun locking structure for a charging pile according to claim 8, characterized in that: The first spring (607) and the second spring (805) are both compression springs.

10. The locking structure of a charging gun for a charging pile according to claim 1, characterized in that: The right end of the charging shell (1) is rotatably connected to a dustproof shell (102) via a pin shaft.

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