Electronic lock and charging device

Abstract

The utility model relates to an electronic lock and a charging device. The electronic lock comprises a shell, a locking piece and a driving piece; a containing cavity is formed in the shell, a limiting strip, a stopping block and two limiting blocks are arranged on the bottom wall of the containing cavity, a limiting area is formed between the stopping block and the limiting strip, the two limiting blocks are located on the two sides of the limiting strip, and positioning grooves are formed in the limiting blocks; the locking piece comprises a control part and a lock rod, a limiting groove matched with the limiting strip is formed in the bottom wall of the control part, positioning blocks matched with the positioning grooves are formed on the two sides of the control part, and a limiting part is formed at the end, away from the lock rod, of the control part; wherein the control part is arranged in the containing cavity, the limiting strip is arranged in the limiting groove, the two positioning blocks are arranged in the corresponding positioning grooves respectively, the limiting part is arranged in the limiting area, and the lock rod penetrates through the shell; the driving piece is installed in the containing cavity and used for controlling the locking piece to move. The charging device comprises the electronic lock. According to the utility model, the lock rod is accurate in movement and high in safety.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy vehicle charging, and in particular to an electronic lock and a charging device. Background Art

[0002] With the continuous development of society, environmental protection and energy conservation have become the main trend of human social development. More and more new energy vehicles are being developed and gradually replacing fuel vehicles. Just as fuel vehicles need to refuel at gas stations, new energy vehicles also need charging piles to replenish electricity. As a result, charging piles and other charging supporting facilities also play an important role in the development and promotion of new energy.

[0003] However, when a new energy vehicle is charged using a charging gun, the charging gun needs to be removed from the charging pile and inserted into the charging port of the car. In order to ensure the safety of people and vehicles during the charging process, an electronic lock is required to lock the charging gun after the charging gun is inserted into the charging port to prevent accidental disconnection of the charging.

[0004] Referring to the utility model patent with publication number CN282487U, it discloses an electronic lock including a housing, a motor, a locking rod, gears and other components. The motor drives the locking rod to move through the gears, thereby locking and unlocking the charging gun. However, the electronic lock does not have a structure to limit the movement range of the locking rod, which causes the locking rod to easily deviate when moving, resulting in the charging gun not being locked normally, thereby posing a safety hazard.

[0005] Therefore, it is necessary to provide a technical solution to solve the above problems. Utility Model Content

[0006] The utility model provides an electronic lock and a charging device, aiming to solve the problem that the movement of the lock rod in the existing electronic lock is unstable, resulting in the charging gun being unable to lock normally, thereby posing a safety hazard.

[0007] To achieve the above object, the present invention provides an electronic lock, comprising a housing, a locking member and a driving member;

[0008] An accommodating cavity is formed inside the housing, and a bottom wall of the accommodating cavity is provided with a limit strip, a stop block and two limit blocks, a limit area is formed between the stop block and the limit strip, the two limit blocks are distributed on both sides of the limit strip, and a positioning groove is formed on a side of the limit block close to the limit strip;

[0009] The locking member includes a control part and a locking rod connected to one end of the control part; a limiting groove adapted to the limiting strip is formed on the bottom wall of the control part, and positioning blocks adapted to the positioning groove are formed on both sides of the control part; a limiting part is formed at one end of the control part away from the locking rod, the control part is arranged in the accommodating cavity, and the limiting strip is arranged in the limiting groove, the two positioning blocks are respectively arranged in the corresponding positioning grooves, and the limiting part is placed in the limiting area to limit the movement range of the control part; the locking rod passes through the housing;

[0010] The driving member is installed in the accommodating cavity and is used to control the movement of the locking member.

[0011] Preferably, the electronic lock further includes a contact switch, which is electrically connected to the driving member; a guide portion is formed on the control portion, the wall surface of the guide portion is inclined, and the detection end of the contact switch abuts against the wall surface of the guide portion to detect the position of the control portion.

[0012] Preferably, the electronic lock also includes a non-emergency linkage unlocking member; the non-emergency linkage unlocking member includes an operating part and a rotating part, the rotating part is arranged in the accommodating cavity and is rotatably connected to the shell, a protrusion is provided on the control part, the rotating part is in contact with the protrusion, and the operating part is arranged on the outside of the shell and is fixedly connected to the rotating part.

[0013] Preferably, one end of the rotating part passes through the outer shell, and the rotating part and the outer shell are sealed by a first sealing ring.

[0014] Preferably, the housing includes an upper shell and a lower shell, and the upper shell and the lower shell are welded by laser welding or ultrasonic welding.

[0015] Preferably, a first surrounding edge is formed on the upper surface of the lower shell, and a second surrounding edge is formed on the lower surface of the upper shell; when the upper shell is connected to the lower shell, the second surrounding edge is arranged on the outside of the first surrounding edge.

[0016] Preferably, the length of the limiting area is 7mm-8mm.

[0017] Preferably, the locking rod and the housing are sealed via a second sealing ring.

[0018] Preferably, a driving gear is installed at the output end of the driving member, and a tooth portion is formed on the upper surface of the control portion; a transmission gear is provided in the accommodating cavity, and the transmission gear is respectively engaged with the driving gear and the tooth portion.

[0019] A charging device includes the above-mentioned electronic lock.

[0020] The beneficial effects of the electronic lock and charging device involved in the utility model are:

[0021] The present application utilizes the cooperation of the limit strip and the limit groove so that the control part can only move along the length direction of the limit strip, while the cooperation of the positioning block and the positioning groove limits the longitudinal movement of the control part. In this way, it can ensure that when the driving part drives the control part to move, the locking rod moves in a predetermined direction, thereby improving the movement accuracy of the locking rod and reducing the risk of locking rod deviation; secondly, the addition of the limit part limits the movement range of the control part, avoiding the occurrence of excessive extension or excessive retraction of the locking rod, making the overall structure of the electronic lock more stable and improving the service life of the electronic lock; in addition, the limit strip, limit groove, positioning block, positioning groove and other structures are all directly formed on the shell or locking part, reducing the components of the electronic lock, reducing the production difficulty of the electronic lock, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural diagram of an electronic lock involved in the present utility model;

[0023] Figure 2 This is a diagram of the internal structure of an electronic lock involved in the present utility model;

[0024] Figure 3 This is a cross-sectional schematic diagram of an electronic lock involved in the present utility model;

[0025] Figure 4 This is a schematic diagram of the cooperation between a driving member and a locking member in an electronic lock involved in the present utility model;

[0026] Figure 5 This is a schematic diagram of the cooperation between a non-emergency linkage unlocking member and a locking member in an electronic lock involved in the present utility model;

[0027] Figure 6 This is a schematic diagram of the cooperation between a contact switch and a locking member in an electronic lock involved in the present utility model;

[0028] Figure 7 This is a schematic diagram of the connection between the locking member and the lower housing of an electronic lock involved in the present utility model;

[0029] Figure 8 This is a structural diagram of a locking member in an electronic lock involved in the present utility model;

[0030] Figure 9 This is a structural diagram of a locking member in an electronic lock according to the present invention from another perspective;

[0031] Figure 10 This is a structural diagram of the lower housing of an electronic lock involved in the present utility model;

[0032] Figure 11 The figure is a structural diagram of an upper shell of an electronic lock involved in the present utility model.

[0033] Markings in the figure:

[0034] 1. Housing; 2. Locking member; 3. Driving member; 4. Second sealing ring; 5. Transmission gear; 6. Contact switch; 7. Non-emergency linkage unlocking member;

[0035] 11. Upper shell; 111. Second surrounding edge; 12. Lower shell; 121. Limiting strip; 122. Stop block; 123. Limiting block; 125. Limiting area; 126. First surrounding edge;

[0036] 21. Control unit; 211. Limiting groove; 212. Positioning block; 213. Limiting unit; 214. Insertion slot; 216. Guide unit; 217. Protrusion; 218. Tooth unit; 22. Locking rod;

[0037] 31. Driving gear;

[0038] 71. Operating unit; 72. Rotating unit. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0040] It should be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element at the same time; when an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0042] In the description of the embodiments of the present invention, it should be understood that the directions or positional relationships indicated by “up”, “down”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0043] The utility model relates to a charging device that can be used to supplement electric energy for new energy vehicles. During the charging process, the charging device is locked with the new energy vehicle through an electronic lock to ensure that the charging process is stable. Figures 1-11 , the electronic lock comprises a housing 1, a locking member 2 and a driving member 3;

[0044] An accommodating cavity is formed inside the housing 1. The bottom wall of the accommodating cavity is provided with a limiting strip 121, a stop block 122, and two limiting blocks 123. A limiting area 125 is formed between the stop block 122 and the limiting strip 121. The two limiting blocks 123 are distributed on both sides of the limiting strip 121, and a positioning groove is formed on the side of the limiting block 123 close to the limiting strip 121.

[0045] The locking member 2 includes a control portion 21 and a locking rod 22 connected to one end of the control portion 21; a limiting groove 211 adapted to the limiting strip 121 is formed on the bottom wall of the control portion 21, and positioning blocks 212 adapted to the positioning groove are formed on both sides thereof; a limiting portion 213 is formed at one end of the control portion 21 away from the locking rod 22; the control portion 21 is disposed in the accommodating cavity, and the limiting strip 121 is disposed in the limiting groove 211, the two positioning blocks 212 are respectively disposed in the corresponding positioning grooves, and the limiting portion 213 is disposed in the limiting area 125 to limit the movement range of the control portion 21; the locking rod 22 passes through the housing 1;

[0046] The driving member 3 is installed in the accommodating cavity and is used to control the movement of the locking member 2 .

[0047] In this embodiment, the limiting strip 121, the stopping block 122 and the limiting block 123 are all integrally formed on the housing 1, while the positioning block 212, the limiting groove 211 and the limiting portion 213 are integrally formed on the locking member 2. In this way, the number of components of the electronic lock can be effectively reduced, the difficulty of production and assembly of the electronic lock is reduced, and the production efficiency of the electronic lock is improved. When the control part 21 is installed in the inside of the shell 1, the control part 21 can only move along the length direction of the limit bar 121 through the cooperation between the limit bar 121 and the limit groove 211, while the cooperation between the positioning block 212 and the positioning groove limits the longitudinal movement of the control part 21. In this way, it can be ensured that when the driving member 3 drives the control part 21 to move, the locking rod 22 moves in a predetermined direction, thereby improving the movement accuracy of the locking rod 22, reducing the risk of the locking rod 22 offset, ensuring that the electronic lock is accurately locked to the new energy vehicle, and eliminating safety hazards; in addition, the limiting part 213 can only move within the limiting area 125, thereby limiting the movement range of the control part 21. When the limiting part 213 conflicts with the limit bar 121, the locking rod 22 cannot move forward any further, and when the limiting part 213 conflicts with the stop block 122, the locking rod 22 cannot move backward any further. In this way, the situation of excessive extension or excessive retraction of the locking rod 22 is avoided, making the overall structure of the electronic lock more stable and safer.

[0048] To further illustrate, the length of the limiting region 125 is 7mm-8mm; that is, the distance between the end of the limiting strip 121 and the stop block 122 is 7mm-8mm. Within this travel range, the locking rod 22 is securely locked to the new energy vehicle while eliminating the need for excessive space within the electronic lock, minimizing the size of the electronic lock.

[0049] As a preferred option, see Figure 9 The bottom of the control unit 21 is formed with an insertion slot 214, in which a block is located. The middle of the lock rod 22 is provided with a slot that matches the block. One end of the lock rod 22 is placed in the insertion slot 214, and the block is placed in the slot. The lower end of the lock rod 22 contacts the limit bar 121. Compared to the method of gluing or welding the lock rod 22 to the control unit 21, this design is not only convenient to assemble, but also more stable between the lock rod 22 and the control unit 21 after assembly.

[0050] As a preferred option, see Figure 1 、 Figure 10 and Figure 11 The shell 1 includes an upper shell 11 and a lower shell 12, and the upper shell 11 and the lower shell 12 are connected by laser welding, ultrasonic welding, etc. During the welding process, the parts of the upper shell 11 and the lower shell 12 that are close to each other are heated and fused, and then form a whole after cooling. In this way, there is no gap between the upper shell 11 and the lower shell 12, which improves the sealing effect. This design can reduce the use of sealing rings and reduce production costs.

[0051] As a preferred option, see Figure 1 、 Figure 10 and Figure 11 A first edge 126 is formed on the upper surface of the lower shell 12, and a second edge 111 is formed on the lower surface of the upper shell 11. When the upper shell 11 and the lower shell 12 are connected, the second edge 111 is arranged outside the first edge 126. The cooperation between the first edge 126 and the second edge 111 ensures precise alignment of the upper shell 11 and the lower shell 12. In addition, the first edge 126 and the second edge 111 form an interference fit. Even if a small gap exists between the upper shell 11 and the lower shell 12, the first edge 126 can act as a water barrier inside, reducing the possibility of liquid entering the accommodating cavity.

[0052] As a preferred option, see Figure 3 The locking rod 22 is sealed to the housing 1 via a second sealing ring 4. This design improves the sealing performance of the electronic lock, preventing external liquids from seeping into the lock's interior and preventing the lock from failing due to short circuits. Preferably, the second sealing ring 4 has a square cross-section and a thickness greater than 2.5 mm. This ensures sufficient contact between the second sealing ring 4 and the locking rod 22, making it less susceptible to deformation due to movement of the locking rod 22 and resulting in a stable seal.

[0053] As a preferred option, see Figure 4 A driving gear 31 is mounted on the output end of the driver 3, and a toothed portion 218 is formed on the upper surface of the control unit 21. A transmission gear 5 is located within the accommodating cavity, meshing with the driving gear 31 and the toothed portion 218. The driver 3 can drive the driving gear 31 to rotate forward or reverse. Driven by the transmission gear 5, the control unit 21 moves forward or backward accordingly, thereby achieving the telescopic movement of the locking rod 22.

[0054] As a preferred option, see Figure 6 The electronic lock also includes a contact switch 6, which is electrically connected to the drive member 3. A guide portion 216 is formed on the control portion 21, and the wall surface of the guide portion 216 is inclined. The detection end of the contact switch 6 abuts against the wall surface of the guide portion 216 to detect the position of the control portion 21. During the movement of the control portion 21, the contact position between the detection end of the contact switch 6 and the wall surface of the guide portion 216 will change accordingly. Since the wall surface of the guide portion 216 is inclined, the detection end of the contact switch 6 will gradually change its position. When the control portion 21 moves into position, the contact switch 6 will be activated accordingly to transmit information to the drive member 3, causing the drive member 3 to stop driving the control portion 21 to move, thereby ensuring that the control portion 21 moves accurately into position. If the contact switch 6 cannot be activated normally, it means that the lock rod 22 has not moved into position. The charging pile can receive the signal and feedback it to the user, thereby eliminating safety hazards.

[0055] As a preferred option, see Figure 5 The electronic lock also includes a non-emergency linkage unlocking member 7; the non-emergency linkage unlocking member 7 includes an operating portion 71 and a rotating portion 72. The rotating portion 72 is arranged in the accommodating cavity and is rotatably connected to the housing 1. A protrusion 217 is provided on the control portion 21. The rotating portion 72 is in contact with the protrusion 217. The operating portion 71 is arranged on the outside of the housing 1 and is fixedly connected to the rotating portion 72. When the electronic lock fails or someone else mistakenly operates it and needs to be unlocked urgently, the operating portion 71 can be pushed to cause the rotating portion 72 to rotate, and then the rotating portion 72 pushes the protrusion 217 to directly drive the control portion 21 to approach the stop portion, that is, to retract the locking rod 22, thereby releasing the locked state of the electronic lock and improving the safety performance of the electronic lock. Compared with the method of using a driving gear to drive the control portion 21 to move, the method of directly driving the control portion 21 to move is more stable and safer.

[0056] Furthermore, one end of the rotating portion 72 passes through the housing 1, and a first sealing ring is used to seal the rotating portion 72 and the housing 1. This design improves the sealing performance of the electronic lock, preventing external liquid from penetrating into the interior of the electronic lock, thereby preventing the electronic lock from failing due to a short circuit.

[0057] The above description is only a preferred embodiment of the present invention, and its structure is not limited to the shapes listed above. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An electronic lock, characterized in that: It comprises a housing (1), a locking member (2) and a driving member (3); An accommodating cavity is formed inside the housing (1); a bottom wall of the accommodating cavity is provided with a limiting strip (121), a stop block (122) and two limiting blocks (123); a limiting area (125) is formed between the stop block (122) and the limiting strip (121); the two limiting blocks (123) are distributed on both sides of the limiting strip (121); and a positioning groove is formed on a side of the limiting block (123) close to the limiting strip (121); The locking member (2) includes a control part (21) and a locking rod (22) connected to one end of the control part (21); a limiting groove (211) adapted to the limiting strip (121) is formed on the bottom wall of the control part (21), and positioning blocks (212) adapted to the positioning groove are formed on both sides of the control part (21); a limiting part (213) is formed at one end of the control part (21) away from the locking rod (22); the control part (21) is arranged in the accommodating cavity, and the limiting strip (121) is arranged in the limiting groove (211), two positioning blocks (212) are respectively arranged in the corresponding positioning grooves, and the limiting part (213) is placed in the limiting area (125) to limit the moving range of the control part (21); the locking rod (22) passes through the housing (1); The driving member (3) is installed in the accommodating cavity and is used to control the movement of the locking member (2).

2. An electronic lock according to claim 1, characterized in that: The invention also includes a contact switch (6) electrically connected to the driving member (3); a guide portion (216) is formed on the control portion (21), the wall surface of the guide portion (216) is arranged in an inclined manner, and the detection end of the contact switch (6) abuts against the wall surface of the guide portion (216) to detect the position of the control portion (21).

3. The electronic lock according to claim 1, characterized in that: The invention also includes a non-emergency linkage unlocking member (7); the non-emergency linkage unlocking member (7) includes an operating portion (71) and a rotating portion (72); the rotating portion (72) is arranged in the accommodating cavity and is rotatably connected to the housing (1); a protrusion (217) is provided on the control portion (21); the rotating portion (72) is in contact with the protrusion (217); the operating portion (71) is arranged outside the housing (1) and is fixedly connected to the rotating portion (72).

4. An electronic lock according to claim 3, characterized in that: One end of the rotating part (72) passes through the housing (1), and the rotating part (72) and the housing (1) are sealed via a first sealing ring.

5. The electronic lock according to claim 1, characterized in that: The housing (1) comprises an upper shell (11) and a lower shell (12), and the upper shell (11) and the lower shell (12) are welded by laser welding or ultrasonic welding.

6. An electronic lock according to claim 5, characterized in that: The upper surface of the lower shell (12) is formed with a first surrounding edge (126), and the lower surface of the upper shell (11) is formed with a second surrounding edge (111); when the upper shell (11) is connected to the lower shell (12), the second surrounding edge (111) is arranged on the outside of the first surrounding edge (126).

7. The electronic lock according to claim 1, characterized in that: The length of the limiting area (125) is 7mm-8mm.

8. The electronic lock according to claim 1, characterized in that: The locking rod (22) and the housing (1) are sealed via a second sealing ring (4).

9. The electronic lock according to claim 1, characterized in that: A driving gear (31) is installed at the output end of the driving member (3), and a tooth portion (218) is formed on the upper surface of the control portion (21); a transmission gear (5) is provided in the accommodating cavity, and the transmission gear (5) is respectively engaged with the driving gear (31) and the tooth portion (218).

10. A charging device, characterized in that: The electronic lock comprises the electronic lock according to any one of claims 1 to 9.

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