Dual-sealing waterproof charging connection device and charging equipment

Abstract

The invention provides a dual-seal waterproof charging connection device, and the device comprises a charging socket which comprises a socket housing for plugging a charging gun and a charging interface which is located in the socket housing and is used for electrically connecting the charging gun, and the lower part, adjacent to the charging interface, of the socket housing is provided with a lock hole; the water receiving tank is arranged below the socket shell and comprises a water tank shell and a sealing pipe located in the water tank shell, the water tank shell is connected with the socket shell in a sealed mode and surrounds the lock hole, a through hole corresponding to the lock hole is formed in the lower portion of the water tank shell, and the lower end of the sealing pipe surrounds the through hole and is connected with the water tank shell in a sealed mode; and the electronic lock is arranged below the water tank shell, the electronic lock comprises a lock shell and a locking rod capable of moving up and down relative to the lock shell, the locking rod can sequentially penetrate through the through hole, the sealing pipe and the lock hole to enter the socket shell, the locking rod is connected with the upper end of the sealing pipe in a sealed mode, and the good waterproof connection effect is achieved. The invention also provides charging equipment using the charging connection device.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicle charging, and more specifically, to a double-sealed and waterproof charging connection device, and a charging device comprising the charging connection device. Background Art

[0002] With the rapid development of the times and the improvement of people's living standards, cars are becoming more and more popular. In the current automobile market, new energy vehicles account for a considerable proportion. With the development of automobile intelligence, new energy vehicles are increasingly becoming the first choice for people to choose cars.

[0003] New energy vehicles mainly include electric vehicles and hybrid vehicles. All electric vehicles and most hybrid vehicles have charging interfaces. New energy vehicles are charged by connecting to charging connection devices through the charging interfaces to meet further usage needs.

[0004] The charging connection device is an indispensable device for charging new energy vehicles. Some existing charging connection devices are arranged in outdoor parking environments. Waterproofing of the charging end during charging is an important technical issue. The disadvantage of waterproofing may cause damage to the equipment at the least and safety accidents at the worst. The waterproof structure of the charging interface of the existing charging connection device has problems such as complex structure or poor waterproof effect, which cannot meet user needs well. Summary of the invention

[0005] In view of the above, the present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a double-sealed and waterproof charging connection device and charging equipment. Based on the structure that the electronic lock is set below the charging socket, a water receiving box including a sealing pipe is set. The sealing pipe is respectively sealed with the bottom seal of the water receiving box and the locking rod, so as to realize the drainage of possible water inflow into the socket housing and prevent water from entering other areas of the electronic lock and causing damage to the equipment. At the same time, the charging connection device has a simple structure and is suitable for application in large-scale industrial production.

[0006] To this end, in a first aspect, an embodiment of the present invention provides a double-sealed and waterproof charging connection device, comprising:

[0007] A charging socket, comprising a socket housing for plugging and unplugging a charging gun and a charging interface located in the socket housing and used to electrically connect the charging gun, wherein a lock hole is provided at the lower portion of the socket housing adjacent to the charging interface;

[0008] A water receiving box is arranged below the socket housing, the water receiving box comprises a water tank housing and a sealing tube located inside the water tank housing, the water tank housing is sealingly connected to the socket housing and surrounds the lock hole, a through hole corresponding to the lock hole is arranged below the water tank housing, and the lower end of the sealing tube is sealingly connected to the water tank housing around the through hole; and,

[0009] An electronic lock is arranged below the water tank housing, and includes a lock housing and a locking rod that can move up and down relative to the lock housing. The locking rod can sequentially pass through the through hole, the sealing tube and the lock hole to enter the socket housing, and the locking rod is sealingly connected to the upper end of the sealing tube.

[0010] Preferably, the sealing tube is configured as a retractable structure.

[0011] Preferably, the sealing tube is configured as a bellows; or,

[0012] The sealing tube is configured as a rubber tube or a silicone tube.

[0013] Preferably, the periphery of the lower end of the sealing tube is folded outward to form a sealing rib, and a first sealing groove corresponding to and accommodating the sealing rib is provided around the through hole at the bottom of the water tank shell.

[0014] Preferably, a connecting ring surrounding the through hole is provided at the bottom of the water tank housing, and the connecting ring and the bottom of the water tank housing are spaced apart to form the first sealing groove, and the first sealing groove fixes the sealing tube by welding or clamping.

[0015] Preferably, the upper end periphery of the sealing tube extends inwardly to form a sealing hoop strip, and the locking rod is provided with a second sealing groove corresponding to and sealingly accommodating the sealing hoop strip.

[0016] Preferably, the water receiving box further comprises a drain pipe, and the drain pipe is connected to the outside through the bottom of the water tank housing; and / or,

[0017] A sealing ring is arranged between the connection structure of the water tank housing and the socket housing.

[0018] Preferably, the electronic lock further comprises a driver, which is disposed in the lock housing and is used to drive the locking rod to move.

[0019] Preferably, the circumference of the lower end of the sealing tube is folded outward to form a sealing rib, and the bottom of the water tank shell is provided with a first sealing groove corresponding to and accommodating the sealing rib around the through hole; the circumference of the upper end of the sealing tube extends inward to form a sealing hoop strip, and the locking rod is provided with a second sealing groove corresponding to and sealingly accommodating the sealing hoop strip; the upper end of the sealing tube is sealingly connected to the locking rod, and the lower end of the sealing tube is sealingly connected to the bottom of the water tank shell.

[0020] In a second aspect, an embodiment of the present invention further provides a charging device, comprising the charging connection device according to the first aspect and a power supply device electrically connected to the charging interface.

[0021] The charging connection device and charging equipment provided by the present invention are based on the structure that the electronic lock is arranged below the charging socket, and a water receiving box including a sealing tube is arranged between the charging socket and the electronic lock. The sealing tube is respectively sealed with the bottom seal of the water receiving box and the locking rod, so that the water receiving box is connected to the socket shell in a single manner, thereby realizing the drainage of possible water inflow into the socket shell, preventing water from entering other areas of the charging connection device, such as the internal circuit module of the electronic lock, thereby avoiding damage to the equipment. The charging connection device has a simple structure and has a high waterproof effect, providing users with a good usage experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the three-dimensional structure of a double-sealed and waterproof charging connection device provided in an embodiment of the present invention;

[0023] Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure of the charging connection device with some components omitted;

[0024] Figure 3 for Figure 1 Schematic diagram of the exploded structure of the charging connection device;

[0025] Figure 4 for Figure 1 A schematic cross-sectional view of the charging connection device along line AA;

[0026] Figure 5 for Figure 4 Enlarged view of area B;

[0027] Figure 6 for Figure 2 Side view of the charging connection device. DETAILED DESCRIPTION

[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0029] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific processes and examples of materials, but those of ordinary skill in the art can be aware of the applicability of other processes and / or the use of other materials.

[0030] Please refer to Figures 1 to 6 The purpose of the present invention is to provide a double-sealed and waterproof charging connection device 100. Among the charging devices, the charging device can be a charging device at a public charging service station or a personal charging device in a private parking space, or it can be a vehicle body charging port. The charging connection device 100 is used to realize the connection between the charging device and the charging gun of the new energy vehicle, thereby charging the new energy vehicle.

[0031] The charging connection device 100 comprises:

[0032] The charging socket 10 includes a socket housing 11 for plugging and unplugging the charging gun and a charging interface 12 located in the socket housing 11 and used to electrically connect the charging gun. A lock hole 13 is provided at the lower portion of the socket housing 11 adjacent to the charging interface 12.

[0033] A water receiving box 20 is disposed below the socket housing 11. The water receiving box 20 includes a water tank housing 21 and a sealing tube 22 located in the water tank housing 21. The water tank housing 21 is sealed to the socket housing 11 and surrounds the lock hole 13. A through hole 23 corresponding to the lock hole 13 is provided below the water tank housing 21. The lower end of the sealing tube 22 is sealed to the water tank housing 21 around the through hole 23; and,

[0034] The electronic lock 30 is arranged below the water tank housing 21. The electronic lock 30 includes a lock housing 31 and a locking rod 32 that can move up and down relative to the lock housing 31. The locking rod 32 can pass through the through hole 23, the sealing tube 22 and the lock hole 13 in sequence to enter the socket housing 11. The locking rod 32 is sealingly connected to the upper end of the sealing tube 22.

[0035] In this embodiment, an electronic lock 30 is provided below the charging socket 10, and the locking rod 32 of the electronic lock can move into the socket housing 11, and this structure meets the NACS North American charging standard. A water receiving box 20 is further provided between the electronic lock 30 and the charging socket 10, and the locking rod 32 is provided to be able to pass through the water receiving box 20. At the same time, the water receiving box 20 is provided with a sealing structure, which can receive water drops or water flows that may appear in the socket housing 11 of the charging socket 10, and will not allow water drops or water flows to enter the area where the electronic lock 30 is located. The structure is simple and stable, and has a good waterproof effect.

[0036] Further, the sealing tube 22 is configured as a retractable structure. In this embodiment, the sealing tube 22 is configured as a retractable structure, the lower end of which is sealed and connected to the water tank housing 21, and the upper end is sealed and connected to the locking rod 32. The retractable structure of the sealing tube 22 allows the locking rod 32 to always maintain a relatively sealed state with the water receiving box 20 during the up and down movement. It can be understood that the sealing tube 22 may not be a retractable structure, and the upper end of the sealing tube 22 and the locking rod 32 are relatively slidably sealed to prevent water drops or water flows from passing through.

[0037] Furthermore, the sealing tube 22 is configured as a bellows. In this embodiment, the sealing tube 22 is configured as a bellows structure, which has a good retractable structure and can maintain structural stability after a long period of expansion and contraction.

[0038] It is understandable that the sealing tube 22 can also be set as a rubber tube or a silicone tube. The sealing tube 22 has a certain elasticity, can be extended and retracted, and can also meet relevant waterproof requirements.

[0039] Furthermore, the periphery of the lower end of the sealing tube 22 is folded outward to form a sealing rib 221, and the bottom of the water tank housing 21 is provided with a first sealing groove 211 corresponding to and accommodating the sealing rib 221 around the through hole 23. In this embodiment, by providing the matching structure of the sealing rib 221 and the first sealing groove 211, the sealing connection structure between the sealing tube 22 and the water tank housing 21 is strengthened, and the waterproof effect can be further improved.

[0040] Specifically, the bottom of the water tank housing 21 is provided with a connecting ring 212 surrounding the through hole 23, and the connecting ring 212 and the bottom of the water tank housing 21 are spaced apart to form the first sealing groove 211, and the first sealing groove 211 fixes the sealing tube 22 by welding or clamping. It can be understood that the water tank housing 21 and the connecting ring 212 can also be integrally formed to form a corresponding sealing connection between the first sealing groove 211 and the sealing rib 221.

[0041] Furthermore, the sealing tube 22 forms a sealing ring 222 near the lower end periphery, which is sealed and connected to the locking rod 32. In this embodiment, the lower end of the sealing tube 22 and the locking rod 32 are sealed, which further increases the sealing effect of the overall structure. The sealing connection here is a sliding friction sealing connection.

[0042] Furthermore, the upper end periphery of the sealing tube 22 extends inward to form a sealing hoop strip 223, and the locking rod 32 is provided with a second sealing groove 321 corresponding to and sealingly accommodating the sealing hoop strip 223. In this embodiment, the upper end of the sealing tube 22 is used to prevent water droplets or water flow from flowing along the wall surface of the locking rod 32, and the matching structure of the sealing hoop strip 223 and the second sealing groove 321 is provided to further block water droplets or water flow, and at the same time, the structural stability of the sealing tube 22 and the locking rod 32 can be enhanced.

[0043] Furthermore, the water receiving box 20 further includes a drain pipe 24, and the drain pipe 24 is connected to the outside through the bottom of the water tank housing 21. In this embodiment, the water receiving box 20 discharges the water in the water tank housing 21 to the outside through the drain pipe 24 to avoid water accumulation.

[0044] Furthermore, a sealing ring 40 is provided between the connection structure of the water tank housing 21 and the socket housing 11. The sealing ring 40 is specifically provided as a special-shaped sealing ring, which is adapted to the interface shape of the connection part between the water tank housing 21 and the socket housing 11.

[0045] Furthermore, the electronic lock 30 further includes a driver 33 , which is disposed in the lock housing 31 and is used to drive the locking rod 32 to move.

[0046] In one embodiment, the lower end periphery of the sealing tube 22 is folded outward to form a sealing rib 221, and the bottom of the water tank housing 21 is provided with a first sealing groove 211 corresponding to the sealing rib 221 around the through hole 23; the upper end periphery of the sealing tube 22 extends inward to form a sealing hoop strip 223, and the locking rod 32 is provided with a second sealing groove 321 corresponding to the sealing hoop strip 223; the upper end of the sealing tube 22 is sealedly connected to the locking rod 32, and the lower end of the sealing tube 22 is sealedly connected to the bottom of the water tank housing 21. In this embodiment, by providing the sealing tube 22 and sealingly connecting the upper and lower ends of the sealing tube 22 to the locking rod 32 and the water tank housing 21, respectively, the sealing of the charging socket 10 and the electronic lock 30 is achieved.

[0047] In a second aspect, an embodiment of the present invention further provides a charging device, comprising the above-mentioned charging connection device and a power supply device electrically connected to the charging interface. The power supply device is connected to the mains or industrial electricity, and outputs electric energy to the new energy vehicle through the charging connection device and the charging gun.

[0048] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" 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 representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0049] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A double-sealed waterproof charging connection device, characterized in that: include: A charging socket, comprising a socket housing for plugging and unplugging a charging gun and a charging interface located in the socket housing and used to electrically connect the charging gun, wherein a lock hole is provided at the lower portion of the socket housing adjacent to the charging interface; A water receiving box is arranged below the socket housing, the water receiving box comprises a water tank housing and a sealing tube located inside the water tank housing, the water tank housing is sealingly connected to the socket housing and surrounds the lock hole, a through hole corresponding to the lock hole is arranged below the water tank housing, and the lower end of the sealing tube is sealingly connected to the water tank housing around the through hole; and, An electronic lock is arranged below the water tank housing, and includes a lock housing and a locking rod that can move up and down relative to the lock housing. The locking rod can sequentially pass through the through hole, the sealing tube and the lock hole to enter the socket housing, and the locking rod is sealingly connected to the upper end of the sealing tube.

2. The charging connection device according to claim 1, characterized in that: The sealing tube is configured as a retractable structure.

3. The charging connection device according to claim 2, characterized in that: The sealing tube is configured as a bellows; or, The sealing tube is configured as a rubber tube or a silicone tube.

4. The charging connection device according to claim 1, characterized in that: The periphery of the lower end of the sealing tube is folded outward to form a sealing rib, and a first sealing groove corresponding to and accommodating the sealing rib is provided around the through hole at the bottom of the water tank shell.

5. The charging connection device according to claim 4, characterized in that: A connecting ring surrounding the through hole is provided at the bottom of the water tank housing, and the connecting ring and the bottom of the water tank housing are spaced apart to form the first sealing groove, and the first sealing groove fixes the sealing tube by welding or clamping.

6. The charging connection device according to claim 1, characterized in that: The upper end periphery of the sealing tube extends inwardly to form a sealing hoop strip, and the locking rod is provided with a second sealing groove corresponding to and sealingly accommodating the sealing hoop strip.

7. The charging connection device according to claim 1, characterized in that: The water receiving box further comprises a drain pipe, and the drain pipe is connected to the outside through the bottom of the water tank housing; and / or, A sealing ring is arranged between the connection structure of the water tank housing and the socket housing.

8. The charging connection device according to claim 1, characterized in that: The electronic lock further comprises a driver, which is arranged in the lock housing and is used for driving the locking rod to move.

9. According to the charging connection device according to claim 1, the lower end periphery of the sealing tube is folded outward to form a sealing rib, and the bottom of the water tank shell is provided with a first sealing groove corresponding to and accommodating the sealing rib around the through hole; the upper end periphery of the sealing tube extends inward to form a sealing hoop strip, and the locking rod is provided with a second sealing groove corresponding to and sealingly accommodating the sealing hoop strip; the upper end of the sealing tube is sealingly connected to the locking rod, and the lower end of the sealing tube is sealingly connected to the bottom of the water tank shell.

10. A charging device, characterized in that: It comprises a charging connection device according to any one of claims 1 to 9 and a power supply device electrically connected to the charging interface.

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