New energy automobile charging pile detector
The protective and short-circuit protection components, connected by magnetic attraction, automatically disconnect the circuit, solving the problems of prolonged pressing and electric contact injury during the charging pile tester's testing process, and achieving a safe and reliable testing process.
Patent Information
- Application Number
- CN202422658448.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-10-31
AI Technical Summary
Existing charging pile testing instruments require prolonged pressing during the testing process, leading to worker fatigue, and in the event of equipment failure, the current coming into contact with the human body may cause injury.
The protective and short-circuit protection components, which use magnetic connection, separate the mobile end from the fixed end by de-energizing the magnetic connection, cut off the power supply, and conduct the current to the ground in the event of a short circuit, thus avoiding damage to personnel and equipment caused by the short circuit.
It enables automatic power-off during the testing process, reducing staff fatigue, ensuring personal safety, and preventing damage to personnel and equipment from short circuits.
Smart Images

Figure CN223664694U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of testing instrument technology, specifically to a testing instrument for new energy vehicle charging piles. Background Technology
[0002] Charging pile testers are divided into DC charging pile testers and AC charging pile testers. They are mainly used for debugging and verifying the functions of charging pile products at the installation site, as well as for the later maintenance of charging piles. They can also be used in the research and development and production process.
[0003] A search revealed that Chinese Patent CN211453690U discloses a safe charging pile testing device for new energy vehicles. The device includes a housing, a movable block inserted into the left side of the housing, a triangular insert fixedly installed inside the movable block, and a parallel insert fixedly installed below the triangular insert. Two fixed plates are fixedly installed on the left side of the inner wall of the housing. A movable plate located to the left of the movable block is movably installed on the opposite side of the fixed plates. A metal block penetrating the movable plate is fixedly installed to the left of the triangular and parallel inserts, and a first conductive block is fixedly installed to the left of the metal block. This safe charging pile testing device for new energy vehicles can promptly separate the first and second conductive blocks when a circuit fault occurs, thus ensuring the user's safety and achieving high safety performance, making it safer and more reliable to use.
[0004] However, in the above technical solution, the first guide block and the second conductive block are only brought into contact to form a current path by pressing the movable plate. However, the charging pile tester generally needs a certain amount of time to complete the test. During the test, the movable plate needs to be pressed continuously. If the pressing is maintained manually, it will not only make the staff more tired, but also cause harm to the human body if the current comes into contact with the human body when the equipment has a circuit failure. Utility Model Content
[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a new energy vehicle charging pile testing instrument.
[0006] The technical solution of this utility model is as follows: A new energy vehicle charging pile tester includes a housing with a cover rotatably connected to it, and a tester body connected inside the housing. The tester body consists of an instrument part and a socket part. A protective component is connected to the housing. When the protective component is in use, the magnetic connection between the moving end and the fixed end of the protective component is disconnected, and the moving end moves vertically to push the tester body away from the fixed end to cut off the power supply. A short-circuit protection component is connected to the housing. When the short-circuit protection component is in use, it connects the housing to the ground to form a current path.
[0007] Preferably, the box body has a notch, and a partition can be detachably connected inside the notch.
[0008] Preferably, the partition is connected with symmetrically arranged dovetail blocks, which are slidably connected to the dovetail grooves opened at the notch of the shell.
[0009] Preferably, the socket portion consists of a fixed portion and a movable portion, the fixed portion and the movable portion are arranged in parallel, the fixed portion is connected to the housing, and there is a receiving cavity between the movable portion and the fixed portion that is connected to the protective component. The movable portion is provided with a charging gun socket.
[0010] Preferably, the protective assembly includes a movable seat disposed within the accommodating cavity and connected to the movable part; a fixed seat disposed parallel to the movable seat and connected to the fixed part; multiple guide members, each connected at both ends to the fixed part and the movable part respectively; elastic members, the number of which corresponds to the number of guide members, and the elastic members sleeved on the outside of the guide members; a conductive block passing through the movable seat and connected to the movable part, electrically connected to the movable part; a conductive seat connected to the fixed seat and electrically connected to the fixed part; a magnetic attractor connected to the fixed seat; and a magnetic attachment connected to the movable seat, magnetically attracted to the magnetic attractor.
[0011] Preferably, the short-circuit protection component includes a grounding wire, one end of which is connected to the housing; a grounding terminal, which is connected to the grounding wire; a handle connected to the grounding terminal; the handle and the grounding terminal are arranged in a cross shape; and a spiral blade connected to the grounding terminal.
[0012] Preferably, a warning light is threaded onto the grounding terminal.
[0013] Preferably, the box body is connected to a handle, and the handle is attached with an anti-slip sleeve.
[0014] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:
[0015] In this invention, the magnetic component of the protective assembly loses its magnetic force when the power is cut off, thereby restoring the mobile end from the working state to the initial state. The vertical movement of the mobile end of the protective assembly drives the mobile end of the detector body to move. The fixed end of the detector body moves away from the mobile end, disconnecting the entire circuit and preventing short circuits from causing harm to surrounding personnel and the detector body. At the same time, the anti-short circuit component connected to the housing connects the housing to the ground. In the event of a short circuit or other circuit failure in the detector body, the current can be promptly conducted to the ground to prevent the current from causing harm to the equipment and personnel. Attached Figure Description
[0016] Figure 1 This is a perspective view of the present utility model;
[0017] Figure 2 for Figure 1 A cross-sectional view;
[0018] Figure 3 This is a schematic diagram of the box structure;
[0019] Figure 4 This is a cross-sectional view of the protective components.
[0020] Reference numerals in the attached diagram: 1. Box body; 2. Box cover; 3. Detector body; 4. Partition; 5. Dovetail block; 6. Dovetail groove; 7. Fixed part; 8. Moving part; 9. Charging gun socket; 10. Moving base; 11. Fixed base; 12. Guide component; 13. Elastic component; 14. Conductive block; 15. Conductive base; 16. Magnetic component; 17. Magnetic accessory; 18. Grounding wire; 19. Grounding terminal; 20. Handle; 21. Spiral blade; 22. Warning light; 23. Handle. Detailed Implementation
[0021] Example 1
[0022] like Figures 1-4 As shown, the present invention proposes a new energy vehicle charging pile tester, which includes a housing 1, a housing cover 2, a tester body 3 and protective components, wherein the housing 1 and the housing cover 2 are hinged together.
[0023] In an optional embodiment, a notch is provided on the housing 1, and a partition 4 is detachably connected to the notch; symmetrically arranged dovetail blocks 5 are connected to the partition 4, and the dovetail blocks 5 are slidably connected to the dovetail groove 6 opened at the notch of the housing.
[0024] The detector body 3 is connected inside the housing 1. The detector body 3 consists of an instrument section and a socket section. Multiple casters are connected to the housing 1. The protective component is connected to the housing 1. When the protective component is in use, the magnetic connection between the moving end and the fixed end of the protective component is disconnected. The moving end moves vertically to push the detector body 3 away from the fixed end to cut off the power. The short-circuit protection component is connected to the housing 1. When the short-circuit protection component is in use, the short-circuit protection component connects the housing 1 to the ground to form a current path.
[0025] In an optional embodiment, the socket portion consists of a fixed portion 7 and a movable portion 8. The fixed portion 7 and the movable portion 8 are arranged in parallel. The fixed portion 7 is connected to the housing 1. A receiving cavity connected to the protective component is provided between the movable portion 8 and the fixed portion 7. The movable portion 8 is provided with a charging gun socket 9.
[0026] In an optional embodiment, a handle 23 is connected to the housing 1, and an anti-slip sleeve is adhered to the handle 23; the anti-slip sleeve may be, but is not limited to, a sponge layer.
[0027] Example 2
[0028] like Figures 3-4 As shown, this utility model proposes a new energy vehicle charging pile testing instrument. Compared with Embodiment 1, this embodiment describes the detailed structure of the protective component. The protective component includes a movable base 10, a fixed base 11, a guide member 12, an elastic member 13, a conductive block 14, a conductive base 15, a magnetic suction member 16, and a magnetic attachment 17. The movable base 10 is disposed in the accommodating cavity and is connected to the movable part 8. The fixed base 11 is arranged parallel to the movable base 10 and is connected to the fixed part 7. Multiple guide members 12 are distributed and symmetrically arranged. The two ends of the guide members 12 are respectively connected to the fixed part 7 and the movable part 8. The guide members 12 are selected from, but not limited to, other types. Limited to multi-stage telescopic rods; the number of elastic elements 13 corresponds to the number of guide elements 12, and the elastic elements 13 are sleeved on the outside of the guide elements 12; the elastic elements 13 are selected from, but are not limited to, springs; the conductive block 14 passes through the movable seat 10 and is connected to the movable part 8, and the conductive block 14 is electrically connected to the movable part 8; the conductive seat 15 is connected to the fixed seat 11, and the conductive seat 15 is electrically connected to the fixed part 7; the magnetic suction element 16 is connected to the fixed seat 11; the magnetic suction element 16 is selected from electromagnets; the magnetic attachment 17 is connected to the movable seat 10, and the magnetic attachment 17 is magnetically connected to the magnetic suction element 16, and the magnetic attachment 17 and the magnetic suction element 16 are the movable end and the fixed end, respectively; the magnetic attachment 17 is selected from metal materials containing elements such as iron, cobalt, and nickel.
[0029] Example 3
[0030] like Figures 1-2 As shown in the figure, the present invention proposes a new energy vehicle charging pile tester. Compared with the previous embodiment, this embodiment describes the detailed structure of the short-circuit protection component. The short-circuit protection component includes a grounding wire 18, a grounding terminal 19, a handle 20, and a spiral blade 21. One end of the grounding wire 18 is connected to the housing 1. The grounding terminal 19 is connected to the grounding wire 18. The handle 20 is connected to the grounding terminal 19. The handle 20 and the grounding terminal 19 are arranged in a cross shape. The spiral blade 21 is connected to the grounding terminal 19.
[0031] In an optional embodiment, a warning light 22 is threaded onto the grounding terminal 19; the warning light 22 is a model with its own battery to prevent accidental electric shock to people in the vicinity.
[0032] In summary, when using this utility model, the operator pulls the handle 23 on the box 1 and moves the box 1 to the vicinity of the charging pile to be tested using the rollers installed on the box 1. After leveling the box 1, the box cover 2 is opened, and the grounding terminal 19 placed inside the box 1 is taken out. Rotating the handle 20 will cause the grounding terminal 19 to rotate, and then the spiral blade 21 will drill into the soil to a certain depth. Then, the warning light 22 on the grounding terminal 19 is turned on to remind the surrounding personnel to prevent them from contacting the grounding wire 18. Then, the charging gun is inserted into the charging gun socket 9 for testing. When the charging gun is inserted into the charging gun socket 9 on the moving part 8, the operator needs to press it with their hand to insert it. When the charging gun is inserted, the moving part 8 will move down and move closer to the fixed part 7. The movable seat 10 and conductive block 14 will move closer to the fixed seat 11 and conductive seat 15. The conductive block 14 and conductive seat 15 will contact each other and connect the circuit. When the circuit is connected, the magnetic suction component 16 will also be energized synchronously to generate magnetic force. The magnetic force attracts the magnetic attachment 17, causing it to move the movable seat 10 to press tightly against the fixed seat 11 and compress the length of the elastic component 13 and the guide component 12, so that the movable part 8 is kept in a fixed position to maintain the smooth flow of the circuit. When the equipment is short-circuited or other situations occur that cause the current to terminate or abnormally affect the normal operation of the magnetic suction component 16, the magnetic force of the magnetic suction component 16 will disappear after the power is cut off, and it will lose its attraction to the magnetic attachment 17. The elastic component 13 will rebound and push the movable seat 10 and the movable part 8 to move vertically along the central axis of the guide component 12. The conductive block 14 will disengage from the conductive seat 15, and the circuit will be disconnected to prevent damage to personnel and equipment.
[0033] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.
Claims
1. A new energy vehicle charging pile testing instrument, characterized in that, include The box (1) is rotatably connected to the box cover (2), and the main body of the detector (3) is connected inside the box (1). The main body of the detector (3) consists of an instrument part and a socket part. The protective component is connected to the housing (1); when the protective component is in use, the magnetic connection between the moving end and the fixed end of the protective component is disconnected, and the moving end moves vertically to push the detector body (3) away from the fixed end to cut off the power supply. The short-circuit protection component is connected to the enclosure (1). When the short-circuit protection component is in use, it connects the enclosure (1) to the ground to form a current path.
2. The new energy vehicle charging pile tester according to claim 1, characterized in that, The box body (1) has a notch, and a partition (4) can be detachably connected inside the notch.
3. The new energy vehicle charging pile tester according to claim 2, characterized in that, Symmetrically arranged dovetail blocks (5) are connected to the partition (4), and the dovetail blocks (5) are slidably connected to the dovetail groove (6) opened at the notch of the shell.
4. The new energy vehicle charging pile tester according to claim 1, characterized in that, The socket part consists of a fixed part (7) and a movable part (8). The fixed part (7) and the movable part (8) are arranged in parallel. The fixed part (7) is connected to the housing (1). There is a receiving cavity between the movable part (8) and the fixed part (7) that is connected to the protective component. The movable part (8) is provided with a charging gun socket (9).
5. A new energy vehicle charging pile tester according to claim 4, characterized in that, Protective components include A movable seat (10) is disposed in the receiving cavity and is connected to the movable part (8); A fixed base (11) is arranged parallel to the movable base (10), and the fixed base (11) is connected to the fixed part (7); The guide (12) is distributed in multiple parts, and the two ends of the guide (12) are connected to the fixed part (7) and the moving part (8) respectively; The number of elastic elements (13) corresponds to that of guide elements (12), and the elastic elements (13) are sleeved on the outside of guide elements (12); A conductive block (14) passes through the movable seat (10) and is connected to the movable part (8), and the conductive block (14) is electrically connected to the movable part (8); A conductive base (15) is connected to a fixed base (11), and the conductive base (15) is electrically connected to the fixed part (7). A magnetic chuck (16) is attached to a fixed base (11); A magnetic attachment (17) is attached to a movable base (10), and the magnetic attachment (17) is magnetically connected to a magnetic attractor (16).
6. The new energy vehicle charging pile tester according to claim 1, characterized in that, Short-circuit protection components include Grounding wire (18), one end of which is connected to the enclosure (1); A grounding terminal (19) is connected to a grounding wire (18). A handle (20) is connected to the grounding terminal (19). The handle (20) and the grounding terminal (19) are arranged in a cross shape. A spiral blade (21) is connected to the grounding terminal (19).
7. A new energy vehicle charging pile tester according to claim 6, characterized in that, A warning light (22) is threaded onto the grounding terminal (19).
8. A new energy vehicle charging pile tester according to claim 1, characterized in that, A handle (23) is attached to the box body (1), and an anti-slip sleeve is attached to the handle (23).
Citation Information
Patent Citations
Charging pile detection device for new energy automobile, which is safe to operate
CN211453690U