Multi-station leakage current detection clamp for charging pile accessories

Abstract

The utility model discloses a multi-station leakage current detection clamp for charging pile accessories, which comprises an insulating seat, two concave conductive aluminum blocks are arranged on the insulating seat, an input connector and an output connector are arranged on the insulating seat, a conductive red copper plate is inserted between concave grooves of the two concave conductive aluminum blocks, and the conductive red copper plate is provided with a plurality of concave grooves. A plurality of groups of plugging assemblies are arranged in the insulating seat, each group of plugging assembly comprises a cylinder I, a fixed seat and a push plate, a piston rod of the cylinder I is connected with the fixed seat, the other end of the fixed seat is connected with one surface of the push plate, a plurality of conductive sleeve groups are arranged on one surface, far away from the fixed seat, of the push plate, and each conductive sleeve group comprises a plurality of conductive needle sleeves; a product clamping seat is arranged between the two concave conductive aluminum blocks, a plurality of clamping openings are formed in each product clamping seat, the other end of each conductive sleeve group is connected with a control panel, a plurality of change-over switches are arranged on the insulating seat, and each change-over switch is used for controlling one conductive sleeve group. According to the structure, multiple products can be detected at the same time, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of charging pile accessory fixtures, and in particular relates to a multi-station leakage current detection fixture for charging pile accessories. Background Technology

[0002] like Figure 1 , Figure 2 As shown, this structure, as a charging pile accessory, is used to detect whether a charging plug is plugged into the charging interface. It includes a plastic shell 1 and a communication control circuit board 2 disposed inside the plastic shell 1. The communication control circuit board 2 has a pin group 3 for power supply on its side. After the structure is manufactured, leakage current detection is required on the plastic shell 1. The current operation method is to clamp the input and output ends of the existing leakage current detection device on both sides of the plastic shell 1 of the charging pile accessory, and then connect the pin group 3 (which includes multiple pins) of the charging pile accessory to the required voltage to detect leakage current in the plastic shell 1. However, this structure requires manual removal of both ends of the leakage current detection device for each operation, and then reconnection when testing a new charging pile accessory, which is relatively inefficient. Therefore, it needs to be improved. Utility Model Content

[0003] The purpose of this utility model is to provide a multi-station leakage current detection fixture for charging pile accessories, which solves the problem of low working efficiency in existing leakage current detection of charging pile accessories.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model relates to a multi-position leakage current detection fixture for charging pile accessories, comprising an insulating base with concave conductive aluminum blocks arranged on the left and right sides. An input connector connected to the left-side concave conductive aluminum block is located on the left side of the insulating base, and an output connector connected to the right-side concave conductive aluminum block is located on the right side. A conductive copper plate is inserted between the concave grooves of the two concave conductive aluminum blocks, the conductive copper plate penetrating a plastic shell. The insulating base contains several sets of insertion components. Each set of insertion components includes a cylinder, a fixed base, and a push plate. The piston rod of the cylinder is connected to the fixed base, and the other end of the fixed base is connected to one side of the push plate. Several sets of conductive sleeves are arranged on the side of the push plate away from the fixed base. Each set of conductive sleeves includes... The device includes several conductive pin sleeves that are inserted one-to-one with the pins on the pin assembly. A product clamp fixed on an insulating base is provided between the two concave conductive aluminum blocks. The number of product clamps is the same as the number of plug-in components, and each product clamp is provided with one or more clamping openings. Each clamping opening is used to place a plastic shell with a communication control circuit board. Each set of conductive sleeves is aligned with the notch on the side of a corresponding clamping opening, and the conductive sleeve can be inserted into the notch on the side of the clamping opening when the push plate moves. The other end of the conductive sleeve is connected to a control board. The insulating base is provided with one or more switching switches that are electrically connected to the control board. Each switching switch is used to control one conductive sleeve. A power supply connector and a start switch that are electrically connected to the control board are provided on the back of the insulating base.

[0006] Preferably, in order to clamp the conductive copper plate, the left and right sides of the insulating base are provided with rotary clamping cylinders that are electrically connected to the control board, and the rotary clamping cylinders can press the conductive copper plate into the concave groove of the concave conductive aluminum block after rotation.

[0007] Preferably, the insulating base is provided with a mounting groove, the cylinder is fixed in the mounting groove, the push plate is located outside the mounting groove, the side of the mounting groove near the push plate has an open structure, and a protective cover plate is provided above the mounting groove.

[0008] Preferably, in order to achieve the guiding function, the push plate is fixed on a guide strip, and two sliders are provided at the bottom of each guide strip. The two sliders at the bottom of the same guide strip are respectively connected to a guide rail, and the guide rail is fixed in the mounting groove.

[0009] Preferably, there are two sets of plug-in components, and each of the left and right sides of the insulating base is provided with a pneumatic switch that is electrically connected to the control board and can control one cylinder.

[0010] Preferably, for ease of later relocation, the insulating base is provided with waist groove through holes on both sides.

[0011] The present invention has the following advantages: the detection method of this structure can improve the work efficiency of testing charging pile accessories. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of existing charging pile accessories in Example 1. Figure 1 ;

[0013] Figure 2 This is a schematic diagram of the structure of existing charging pile accessories in Example 1. Figure 2 ;

[0014] Figure 3 This is a schematic diagram of the structure of a multi-station leakage current detection fixture for charging pile accessories in Example 1. Figure 1 ;

[0015] Figure 4 for Figure 3 Enlarged view of point A;

[0016] Figure 5 This is a schematic diagram of the structure of a multi-station leakage current detection fixture for charging pile accessories in Example 1. Figure 2 ;

[0017] Figure 6 This is a schematic diagram of the structure of a multi-station leakage current detection fixture for charging pile accessories in Example 1 without the installation of a conductive copper plate and a protective cover.

[0018] Figure 7 This is a schematic diagram of the structure of one set of plug-in components in Example 1;

[0019] Figure 8 This is a schematic diagram of the structure when the base plate of the insulating seat is removed in Example 1;

[0020] Figure 9 This is a schematic diagram of the structure of a multi-station leakage current detection fixture for a charging pile accessory in Example 1, when one product is installed.

[0021] Figure label:

[0022] 1. Plastic housing; 2. Communication control circuit board; 3. Pin assembly; 4. Insulating base; 5. Switch 401; 6. Concave conductive aluminum block; 7. Input connector; 8. Output connector; 9. Conductive copper plate; 10. Cylinder 1; 11. Fixing base; 12. Push plate; 13. Conductive pin sleeve; 14. Product clamp; 15. Clamping jaw; 16. Control board; 17. Power supply connector; 18. Start switch; 19. Rotary clamping cylinder; 20. Mounting groove; 21. Protective cover plate; 22. Guide bar; 23. Slider; 24. Guide rail; 25. Pneumatic switch; 26. Waist groove through hole. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] Example 1

[0025] Please see Figure 3-9 As shown in this embodiment, a multi-station leakage current detection fixture for charging pile accessories includes an insulating base 4. The insulating base 4 has concave conductive aluminum blocks 5 distributed left and right. An input connector 6 connected to the left concave conductive aluminum block 5 is located on the left side of the insulating base 4, and an output connector 7 connected to the right concave conductive aluminum block 5 is located on the right side of the insulating base 4. A conductive copper plate 8 is inserted between the concave grooves of the two concave conductive aluminum blocks 5. The conductive copper plate 8 is used to penetrate the plastic shell 1. The insulating base 4 contains several sets of insertion components. Each set of insertion components includes a cylinder 9, a fixed base 10, and a push plate 11. The piston rod of the cylinder 9 is connected to the fixed base 10. The other end of the fixed base 10 is connected to one side of the push plate 11. Several sets of conductive sleeves are provided on the side of the push plate 11 away from the fixed base 10. Each set of conductive sleeves includes several... A conductive pin sleeve 12 is inserted one-to-one with the pins on the pin assembly 3. A product clamp 13 fixed on the insulating base 4 is provided between the two concave conductive aluminum blocks 5. The number of product clamps 13 is the same as the number of plug-in components, and each product clamp 13 is provided with one or more clamping slots 14. Each clamping slot 14 is used to place a plastic shell 1 with a communication control circuit board 2. Each set of conductive sleeves is aligned with the notch on the side of a corresponding clamping slot 14, and the conductive sleeve can be inserted into the notch on the side of the clamping slot 14 when the push plate 11 moves. The other end of the conductive sleeve is connected to a control board 15. The insulating base 4 is provided with one or more switching switches 401 that are electrically connected to the control board 15. Each switching switch 401 is used to control one conductive sleeve. A power supply connector 16 and a start switch 17 that are electrically connected to the control board 15 are provided on the back of the insulating base 4.

[0026] Preferably, to clamp the conductive copper plate 8, rotary clamping cylinders 18 electrically connected to the control board 15 are provided on both the left and right sides of the insulating base 4. After rotation, the rotary clamping cylinders 18 can press the conductive copper plate 8 into the concave groove of the concave conductive aluminum block 5. Through this structural arrangement, the rotary clamping cylinders 18 on both sides ensure that the conductive copper plate 8 is pressed into the concave conductive aluminum block 5 during operation (the final clamping state is as follows). Figure 4 (The left side view), to prevent it from moving randomly during the testing process, which could lead to poor contact and ultimately affect the testing results. Also, when it is necessary to disassemble each product (i.e., Figure 1 (the structure), simply rotate the two rotary clamping cylinders 18 to... Figure 3 With the right side in position, the conductive copper plate 8 can be quickly lifted, and the various products threaded onto the conductive copper plate 8 can be pulled out from the clamp 14.

[0027] Preferably, the insulating base 4 is provided with a mounting groove 19, the cylinder 9 is fixed in the mounting groove 19, the push plate 11 is located outside the mounting groove 19, and the side of the mounting groove 19 near the push plate 11 has an open structure. A protective cover plate 20 is provided above the mounting groove 19. Through the above structural settings, the cylinder 9 can be installed in a hidden manner, making the entire equipment structure neater and also protecting the cylinder 9.

[0028] Preferably, in order to achieve the guiding function, the push plate 11 is fixed on a guide strip 21. Each guide strip 21 has two sliders 22 at its bottom. The two sliders 22 at the bottom of the same guide strip 21 are respectively connected to a guide rail 23. The guide rail 23 is fixed in the mounting groove 19. With the above structure, the push plate 11 can play a guiding role when it moves back and forth, avoiding the problem of misalignment between the conductive needle sleeve 12 and the pin on the pin assembly 3 due to position deviation during movement.

[0029] Preferably, there are two sets of plug-in components, and each of the left and right sides of the insulating base 4 is provided with a pneumatic switch 24 that is electrically connected to the control board 15 and can control a cylinder 9. By setting the pneumatic switch 24, the two sets of plug-in components can be controlled separately, which is convenient for users to use them separately as needed.

[0030] Preferably, for ease of later relocation, both sides of the insulating base 4 are provided with waist groove through holes 25. In this embodiment, the addition of waist groove through holes 25 facilitates the later manual grasping and relocation of the insulating base 4. The operation of this structure is as follows: the power supply connector 16 connects to an external power supply. When this structure needs to adjust... Figure 1 When testing the products shown, place the products to be tested one by one into the clamp 14. Then, pass the entire conductive copper plate 8 through the products on the left and out through the products on the right. The right side of the conductive copper plate 8 should be secured in the groove of the right-side concave conductive aluminum block 5, and the left side in the groove of the left-side concave conductive aluminum block 5. Then, drive the two rotary clamping cylinders 18 to rotate and press down, pressing the conductive copper plate 8 firmly into the concave conductive aluminum block 5 (the final pressed state is as shown). Figure 4(Left side state); At this time, connect the input connector 6 and output connector 7 to the input and output interfaces of the existing leakage current detection equipment respectively; then drive the cylinder 9 on the plug-in assembly to work, driving the push plate 11 to move towards the clamp 14 until the conductive pin sleeve 12 passes through the notch on the side of the clamp 14 and is plugged into the pins on the pin group 3 one-to-one. Then press the start switch 17 at the rear, and the external power supply supplies power to the control board 15, which in turn supplies power to each conductive sleeve group, ultimately supplying power to each product. Since the concave conductive aluminum block 5 and the conductive copper plate 8 are both conductive materials, if a product has a leakage problem, the current will be detected by the existing leakage current detection equipment through the conductive copper plate 8. After detection, first close one set of plug-in assemblies. If the leakage current detection equipment can still detect the leakage current after the set of plug-in assemblies is closed, it means that the product has a leakage problem. If a device in a testing group is found to be leaking current, first shut down another set of plug-in components, then reopen the set of plug-in components with the leaking current to reset it. Then, by sequentially shutting down each of the switch 401 on that set of plug-in components, you can determine which product is leaking current. This method can quickly locate the leaking product. Since leakage current is rare in general products during manufacturing, it is still necessary to test each product individually. However, the testing method of this structure uses one-to-many testing during the testing process, enabling rapid screening of a group and further improving work efficiency. It also eliminates the need to disconnect the testing connection cable for each product and reconnect it when testing a new product, which reduces testing efficiency. In addition, this structure can also detect the current magnitude. Therefore, this structure can improve the work efficiency of testing charging pile accessories.

[0031] It should also be noted that the specific structure of the control board 15, how the control board 15 is electrically connected to the start switch 17 and the switching switch 401, and how the switching switch 401 controls the conduction or disconnection of each conductive bushing are all conventional technologies in the field, and therefore will not be described in detail.

[0032] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall fall within the protection scope of the present utility model.

Claims

1. A multi-position leakage current detection fixture for charging pile accessories, comprising an insulating base (4), characterized in that: The insulating base (4) is provided with concave conductive aluminum blocks (5) distributed on the left and right sides. The left side of the insulating base (4) is provided with an input connector (6) connected to the concave conductive aluminum block (5) on the left side. The right side of the insulating base (4) is provided with an output connector (7) connected to the concave conductive aluminum block (5) on the right side. A conductive copper plate (8) is inserted between the concave grooves of the two concave conductive aluminum blocks (5). The conductive copper plate (8) is used to penetrate the plastic shell (1). The insulating base (4) is provided with several sets of plug-in components. Each set of plug-in components includes a cylinder (9), a fixed base (10), and a push plate (11). The piston rod of the cylinder (9) is connected to the fixed base (10). The other end of the fixed base (10) is connected to one side of the push plate (11). The side of the push plate (11) away from the fixed base (10) is provided with several The conductive sleeves of the dry assembly include several conductive pin sleeves (12) that are inserted one-to-one with the pins on the pin assembly (3). A product clamp (13) fixed on the insulating base (4) is provided between the two concave conductive aluminum blocks (5). The number of product clamps (13) is the same as the number of plug-in components. Each product clamp (13) is provided with one or more clamps (14). Each clamp (14) is used to place a plastic shell (1). The other end of the conductive sleeve is connected to a control board (15). The insulating base (4) is provided with one or more switching switches (401) that are electrically connected to the control board (15). Each switching switch (401) is used to control one conductive sleeve. A power supply connector (16) and a start switch (17) that are electrically connected to the control board (15) are provided on the back of the insulating base (4).

2. The multi-station leakage current detection fixture for charging pile accessories according to claim 1, characterized in that: The insulating base (4) is provided with a rotary clamping cylinder (18) electrically connected to the control board (15) on both the left and right sides. After the rotary clamping cylinder (18) rotates, it can press the conductive copper plate (8) into the concave groove of the concave conductive aluminum block (5).

3. The multi-station leakage current detection fixture for charging pile accessories according to claim 1, characterized in that: The insulating base (4) is provided with an installation groove (19), the cylinder (9) is fixed in the installation groove (19), the push plate (11) is located outside the installation groove (19), and the side of the installation groove (19) near the push plate (11) has an open structure, and a protective cover plate (20) is provided above the installation groove (19).

4. The multi-station leakage current detection fixture for charging pile accessories according to claim 3, characterized in that: The push plate (11) is fixed on a guide strip (21). Each guide strip (21) has two sliders (22) at its bottom. The two sliders (22) at the bottom of the same guide strip (21) are respectively connected to a guide rail (23). The guide rail (23) is fixed in the mounting groove (19).

5. The multi-station leakage current detection fixture for charging pile accessories according to claim 1, characterized in that: There are two sets of plug-in components, and each of the left and right sides of the insulating base (4) is provided with a pneumatic switch (24) that is electrically connected to the control board (15) and can control a cylinder (9).

6. The multi-station leakage current detection fixture for charging pile accessories according to claim 1, characterized in that: Both sides of the insulating base (4) are provided with waist groove through holes (25).

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