Electric leakage detection device for charging pile

Abstract

The utility model discloses an electric leakage detection device for a charging pile, and relates to the technical field of charging pile detection, the electric leakage detection device for the charging pile comprises a volt-ampere meter, a detection piece is sleeved with a connection cover, one end of the connection cover far away from the volt-ampere meter is in threaded connection with a cover body, the cover body is sleeved with an installation plate, and the installation plate is in threaded connection with the connection cover. A convex block is mounted on the mounting plate, and a connecting rod is mounted on one side, far away from the volt-ammeter, of the mounting plate; and the movable plate is rotationally installed on the cover body, a limiting rod is installed on the side, close to the installation plate, of the movable plate, and elastic pieces are annularly arrayed on the other side of the movable plate in the circumferential direction of the movable plate. According to the utility model, the connecting cover and the cover body are in limited connection, the structure is simple, the cover body is convenient to disassemble, replace or maintain when the cover body is damaged, the service life of the device is prolonged, the detection cost is reduced, the protective cover and the charging head can be connected in a clamping manner, and the protective cover is prevented from falling off to affect the detection effect.

Description

Technical Field

[0001] The utility model relates to the technical field of charging pile detection, in particular to a leakage detection device for a charging pile. Background Art

[0002] With the development of new energy technology, new energy electric vehicles are becoming more and more popular and widely used, and more and more electric vehicle charging piles are installed. In order to ensure the safe use of charging piles, it is necessary to test the charging piles, including charging function control test, communication function test, insulation detection function test, vehicle plug locking function test, and pre-charging function test. Among them, insulation detection is an important part of ensuring the safety of electric vehicle charging. By measuring and evaluating the insulation resistance of the charging pile, it can be determined whether the charging pile has safety hazards such as leakage, thereby ensuring the electrical safety of users and the surrounding environment.

[0003] The existing Chinese patent publication number is CN219891387U, and its name is a charging pile leakage detection device. 1. The top of the first measuring tube head can be used to contact the body of the charging pile to detect whether the charging pile has leakage. The cover can block the sparks and smoke generated when the charging pile leaks, so that the staff has time to respond. This device is easy to carry, convenient for the staff to detect the charging pile, and improves the detection efficiency of the charging pile leakage. 2. It plays an auxiliary guiding role to prevent the staff from directly contacting the leakage gun head, improves safety, and facilitates the first measuring tube head and the second measuring tube head to be fixed in place, which is convenient for the user to operate and improves safety.

[0004] However, in this technology, the connecting rod is fixedly connected to the cover body, and the cover body cannot be disassembled independently. When sparks and smoke are generated during the detection process, it will cause a certain degree of damage to the inner wall of the cover body. After long-term use, the cover body will inevitably be damaged. When the cover body is damaged, the entire device needs to be replaced, which reduces the service life of the device and increases the detection cost. Therefore, we propose a leakage detection device for charging piles to solve the above problems. Utility Model Content

[0005] The utility model provides a leakage detection device for a charging pile, which has the advantages of simple structure, convenient disassembly, replacement or maintenance of the cover body, prolonged service life of the device, reduced detection cost and can avoid the protective cover from falling off and affecting the detection effect, so as to solve the problem that the cover body cannot be disassembled independently and when it is damaged, the entire device needs to be replaced, which reduces the service life of the device and increases the detection cost.

[0006] In order to achieve the purpose of independently disassembling the cover body when it is damaged, extending the service life of the entire device and reducing the detection cost, the utility model provides the following technical solutions: a leakage detection device for a charging pile, comprising a voltage and current meter, and also comprising a detection member arranged at one end of the voltage and current meter, the detection member is connected to a charging head, a connecting cover is sleeved on the outside of the detection member, the connection cover is threadedly connected to the cover body at one end away from the voltage and current meter, a mounting plate is sleeved on the cover body, a protrusion is installed on the mounting plate, the protrusion is clamped on the inner wall of the connecting cover, and a connecting rod is installed on the side of the mounting plate away from the voltage and current meter; a movable plate rotatably installed on the cover body, a limiting rod is installed on the side of the movable plate close to the mounting plate, which is used to block and limit the connecting rod, and the other side of the movable plate has spring fragments along its circumferential annular array.

[0007] As a preferred technical solution of the utility model, the detection member includes a mounting rod, the mounting rod is installed on the voltage and current meter, a detection device is installed at the other end of the mounting rod, the detection device is plugged into the charging head, and the connection cover is installed on the outside of the mounting rod.

[0008] As a preferred technical solution of the utility model, the cover body includes a connecting block, a protective cover and a connecting frame. The protective cover is installed between the connecting block and the connecting frame. The connecting block is provided with an external thread on the outside for threaded connection with the connecting cover. The mounting plate is sleeved on the connecting block.

[0009] As a preferred technical solution of the utility model, the protrusion is staggered with the connecting rod, a card slot is provided on the inner wall of the opening end of the connecting cover, an arc-shaped connecting slot is connected to a section of the card slot near the voltage and ammeter, the connecting slot is provided on the inner wall of the connecting cover, and the protrusion is movably arranged at the end of the connecting slot away from the card slot.

[0010] As a preferred technical solution of the utility model, the mounting plate and the movable plate are both in annular shape, the spring piece is installed inside one end of the protective cover close to the connecting block, and the spring piece is clamped on the movable plate.

[0011] As a preferred technical solution of the utility model, the inner side of the connecting frame is provided with a circumferential annular array of limiting members, and the connecting frame is clamped with a convex edge, and the convex edge is installed on the charging head.

[0012] As a preferred technical solution of the utility model, the limiter comprises a connecting spring installed in a connecting frame, a limit block is installed near one end of the connecting spring close to the convex edge, and the limit block extends to the inner side of the connecting frame.

[0013] Compared with the prior art, the utility model provides a leakage detection device for a charging pile, which has the following beneficial effects:

[0014] 1. The leakage detection device for the charging pile is used to connect the cover and the cover body for limited connection through the use of the mounting plate, the bump, the connecting rod, the movable plate, the limit rod and the spring piece. The structure is simple, and it is convenient to disassemble, replace or maintain the cover body when it is damaged, thereby extending the service life of the device and reducing the detection cost.

[0015] 2. The leakage detection device for the charging pile is used in conjunction with the connection frame, convex edge, connection spring and limit block to clamp the protective cover and the charging head to prevent the protective cover from falling off, causing the detection device to separate from the charging head and affecting the detection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 For this utility model Figure 1 A schematic diagram of the structure from another perspective;

[0018] Figure 3 This is a schematic diagram of the structure of the utility model after the detection device is separated from the charging head;

[0019] Figure 4 This is a schematic diagram of the structure of the connection spring and the limit block of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the utility model when the connecting cover and the protective cover are connected;

[0021] Figure 6 This is a schematic diagram of the structure of the utility model when the connecting cover and the protective cover are separated;

[0022] Figure 7 This is a schematic diagram of the structure of the connection cover of the utility model;

[0023] Figure 8 This is a schematic diagram of the structure of the protective cover of the utility model;

[0024] Fig. 9 For this utility model Figure 5 Schematic diagram of the structure at A in the middle.

[0025] In the figure: 1. voltage and current meter; 2. mounting rod; 3. charging head; 4. connecting cover; 5. protective cover; 6. connecting frame; 7. convex edge; 8. connecting spring; 9. limit block; 10. connecting block; 11. mounting plate; 12. convex block; 13. connecting rod; 14. slot; 15. connecting slot; 16. limit rod; 17. movable plate; 18. spring; 19. detection device. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-Figure 9 The utility model discloses a leakage detection device for a charging pile, including a voltage and current meter 1, and also including a detection member arranged at a section of the voltage and current meter 1, the detection member is connected to a charging head 3, a connecting cover 4 is sleeved on the outside of the detection member, and the connecting cover 4 is threadedly connected to a cover body at one end away from the voltage and current meter 1, a mounting plate 11 is sleeved on the cover body, and a convex block 12 is installed on the mounting plate 11, the mounting plate 11, the convex block 12 and the connecting rod 13 are an integrated structure, the convex block 12 is clamped on the inner wall of the connecting cover 4, and a connecting rod 13 is installed on the side of the mounting plate 11 away from the voltage and current meter 1, and the convex block 12 and the connecting rod 13 are staggered. A card slot 14 is provided on the inner wall of the opening end of the connecting cover 4, and the card slot 14 is connected to an arc-shaped connecting slot 15 near a section of the voltage and current meter 1, and the connecting slot 15 is provided on the inner wall of the connecting cover 4, and the convex block 12 is movably clamped at the end of the connecting slot 15 away from the card slot 14. When the cover body needs to be disassembled, the limit rod 16 is toggled to drive the movable plate 17 to rotate The movable plate 17 is moved, the spring piece 18 releases the limit of the movable plate 17, thereby releasing the limit of the connecting rod 13, stopping the moving movable plate 17, and the spring piece 18 limits the movable plate 17, toggling the connecting rod 13, driving the mounting plate 11 to rotate on the connecting block 10, and the protrusion 12 moves from one end of the connecting groove 15 to the end connected with the card slot 14. After the protrusion 12 no longer moves, the connecting rod 13 is fixed to limit the protrusion 12, which is used to further connect the connecting cover 4 with the connecting block 10, thereby improving the effect of the limited connection, and rotating the cover body at the same time, releasing the threaded connection between the connecting block 10 and the connecting cover 4, and the protrusion 12 is removed from the card slot 14, and the disassembly of the cover body can be completed; the movable plate 17 installed on the cover body is rotated, and the movable plate 17 is close to the side of the mounting plate 11. The limiting rod 16 is installed, which is used to block and limit the connecting rod 13, and the other side of the movable plate 17 is provided with a spring piece 18 along its circumferential annular array, which is used to limit the movable plate 17 and the limiting rod 16.

[0028] Specifically, the detection component includes a mounting rod 2, which is mounted on the voltage and current meter 1. A detection device 19 is installed at the other end of the mounting rod 2, and the detection device 19 is plugged into the charging head 3. The connecting cover 4 is installed outside the mounting rod 2.

[0029] In this embodiment, a hole groove is opened on the charging head 3, and the connecting cover 4 and the mounting rod 2 are an integrated structure. During detection, the detection device 19 is aligned with the hole groove and inserted, and the cover body is stuck to the outside of the charging head 3, and detection can be carried out. During the detection process, the connection is protected to avoid sparks.

[0030] Specifically, the cover body includes a connecting block 10, a protective cover 5 and a connecting frame 6. The protective cover 5 is installed between the connecting block 10 and the connecting frame 6. The connecting block 10 is provided with an external thread on the outside for threaded connection with the connecting cover 4. The mounting plate 11 is sleeved on the connecting block 10. The mounting plate 11 and the movable plate 17 are both annular. The spring piece 18 is installed inside the end of the protective cover 5 close to the connecting block 10, and the spring piece 18 is clamped on the movable plate 17.

[0031] In this embodiment, the connecting block 10, the protective cover 5 and the connecting frame 6 are an integrated structure. The connecting block 10 is provided with an annular groove matching the mounting plate 11. The protective cover 5 is provided with an annular groove matching the movable plate 17 at one end close to the connecting block 10. The movable plate 17 is provided with a groove matching the spring piece 18. By threading the connecting cover 4 to the connecting block 10, the protective cover 5 and the connecting frame 6 can be mounted on the outside of the detection device 19. The spring piece 18 is set to limit the movable plate 17 and the limit rod 16 when the limit rod 16 does not need to be moved.

[0032] Specifically, there are limiting members along a circumferential ring array on the inner side of the connecting frame 6, a flange 7 is clamped in the connecting frame 6, the flange 7 is installed on the charging head 3, the limiting member includes a connecting spring 8, the connecting spring 8 is installed in the connecting frame 6, a limiting block 9 is installed near one end of the connecting spring 8 close to the flange 7, and the limiting block 9 extends to the inner side of the connecting frame 6.

[0033] In this embodiment, the connecting spring 8 and the limit block 9 are an integral structure, and the flange 7 and the charging head 3 are an integral structure. When the device is installed on the charging head 3, the connecting frame 6 is sleeved onto the outside of the charging head 3 and moved to the outside of the flange 7. The flange 7 squeezes the limit block 9, the connecting spring 8 is compressed, and the limit block 9 moves toward the connecting frame 6. The connecting frame 6 successfully moves to the outside of the flange 7. The connecting spring 8 drives the limit block 9 to reset and limits the flange 7, thereby limiting the connection between the protective cover 5 and the charging head 3 to prevent it from falling off at will.

[0034] The working principle and use process of the utility model are as follows: when in use, the detection device 19 is aligned with the hole groove on the charging head 3 and inserted, the connecting frame 6 is put on the outside of the charging head 3 and moved to the outside of the convex edge 7, the convex edge 7 squeezes the limit block 9, the connecting spring 8 is compressed, and the limit block 9 moves into the connecting frame 6. The connecting frame 6 successfully moves to the outside of the convex edge 7, and the connecting spring 8 drives the limit block 9 to reset and limit the convex edge 7, so that the protective cover 5 and the charging head 3 are limitedly connected, and the detection can be carried out. The connection cover 4 is used in conjunction with the cover body. During the inspection process, the connection is protected to prevent sparks from popping out. When the cover is damaged after long-term use, the limit rod 16 is moved to drive the movable plate 17 to rotate, and the spring 18 releases the limit of the movable plate 17, thereby releasing the limit of the connecting rod 13, and the movable plate 17 stops moving. The spring 18 limits the movable plate 17, and the connecting rod 13 is moved to drive the mounting plate 11 to rotate on the connecting block 10. The protrusion 12 moves from one end of the connecting groove 15 to the end connected to the card slot 14. After the protrusion 12 stops moving, pinch the connecting rod 1 3, fix it, thereby limiting the protrusion 12, and rotate the cover body at the same time to release the threaded connection between the connection block 10 and the connection cover 4. During the rotation of the cover body, the protrusion 12 gradually moves out of the card slot 14. When the protrusion 12 is completely moved out of the card slot 14, the removal of the cover body is completed. When a new cover body needs to be installed, the connection block 10 is inserted into the inside of the opening end of the connection cover 4, so that the protrusion 12 is inserted into the card slot 14, and the protective cover 5 is rotated. The connection block 10 is gradually screwed into the end of the connection cover 4 close to the voltage and current meter 1 The protrusion 12 moves in the card slot 14. When it moves to the connecting slot 15, the connecting rod 13 is pushed to make the protrusion 12 move to the other end of the connecting slot 15, and then the limiting rod 16 is pushed to drive the movable plate 17 to rotate, and the spring piece 18 releases the limit on the movable plate 17. When the limiting rod 16 moves to the side where the connecting rod 13 is reset, the movable plate 17 stops rotating, the spring piece 18 limits it, and the limiting rod 16 limits the connecting rod 13, so as to further limit the connection between the connecting cover 4 and the connecting block 10, that is, the cover body is installed.

[0035] To sum up, the leakage detection device for the charging pile is used in conjunction with the mounting plate 11, the protrusion 12, the connecting rod 13, the movable plate 17, the limiting rod 16 and the spring piece 18 to connect the connecting cover 4 with the cover body for limiting connection. The structure is simple, and it is convenient to disassemble, replace or maintain the cover body when it is damaged, thereby extending the service life of the device and reducing the detection cost. The connecting frame 6, the flange 7, the connecting spring 8 and the limiting block 9 are used to clamp the protective cover 5 and the charging head 3 to prevent the protective cover 5 from falling off, causing the detection device 19 to separate from the charging head 3 and affecting the detection effect.

[0036] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0037] 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 appended claims and their equivalents.

Claims

1. A leakage detection device for a charging pile, comprising a voltage and current meter (1), characterized in that: Also includes: A detection component is arranged at a section of the voltage and current meter (1), the detection component is connected to a charging head (3), a connection cover (4) is sleeved on the outside of the detection component, a cover body is threadedly connected to one end of the connection cover (4) away from the voltage and current meter (1), a mounting plate (11) is sleeved on the cover body, a bump (12) is mounted on the mounting plate (11), the bump (12) is clamped on the inner wall of the connection cover (4), and a connecting rod (13) is mounted on the side of the mounting plate (11) away from the voltage and current meter (1); A movable plate (17) is rotatably mounted on the cover body, wherein a limiting rod (16) is mounted on one side of the movable plate (17) close to the mounting plate (11) for blocking and limiting the connecting rod (13), and spring pieces (18) are arranged in a circumferential annular array on the other side of the movable plate (17).

2. A leakage detection device for a charging pile according to claim 1, characterized in that: The detection member comprises a mounting rod (2), the mounting rod (2) being mounted on the voltage and current meter (1), a detection device (19) being mounted on the other end of the mounting rod (2), the detection device (19) being plugged into the charging head (3), and the connection cover (4) being mounted outside the mounting rod (2).

3. A leakage detection device for a charging pile according to claim 2, characterized in that: The cover body comprises a connection block (10), a protective cover (5) and a connection frame (6); the protective cover (5) is installed between the connection block (10) and the connection frame (6); the connection block (10) is provided with an external thread on the outside for threaded connection with the connection cover (4); and the mounting plate (11) is sleeved on the connection block (10).

4. A leakage detection device for a charging pile according to claim 3, characterized in that: The protrusion (12) and the connecting rod (13) are staggered, and a slot (14) is provided on the inner wall of the opening end of the connecting cover (4). A section of the slot (14) close to the voltage and current meter (1) is connected to an arc-shaped connecting slot (15). The connecting slot (15) is provided on the inner wall of the connecting cover (4), and the protrusion (12) is movably arranged at an end of the connecting slot (15) away from the slot (14).

5. A leakage detection device for a charging pile according to claim 3, characterized in that: The mounting plate (11) and the movable plate (17) are both in the shape of a ring, the spring piece (18) is mounted inside one end of the protective cover (5) close to the connecting block (10), and the spring piece (18) is clamped on the movable plate (17).

6. A leakage detection device for a charging pile according to claim 3, characterized in that: The inner side of the connection frame (6) is provided with a circumferential annular array of limiting members, and a convex edge (7) is clamped in the connection frame (6), and the convex edge (7) is mounted on the charging head (3).

7. A leakage detection device for a charging pile according to claim 6, characterized in that: The limiting member comprises a connecting spring (8), the connecting spring (8) being mounted in the connecting frame (6), a limiting block (9) being mounted on one end of the connecting spring (8) close to the convex edge (7), the limiting block (9) extending to the inner side of the connecting frame (6).

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