Plug switching device for electromagnetic compatibility test of charging pile

Abstract

The invention relates to the technical field of switching devices, in particular to a plug switching device for a charging pile electromagnetic compatibility test, which comprises a charging pile electromagnetic compatibility tester and a plug switching mechanism, and is characterized in that the plug switching mechanism is mounted on the inner side of the charging pile electromagnetic compatibility tester; the plug switching mechanism is formed by combining a switching base, a jack and a jack top cover. Through the plug switching mechanism, switching of the oil gun at the output end of the charging pile is integrally realized, correct connection and signal transmission between the charging pile and test equipment are ensured, the test process is simplified, through cooperation of the movable mechanism, it is ensured that the compensation plate conveniently extends out and hides, the oil gun is prevented from falling off when extending out, and the service life of the oil gun is prolonged. The auxiliary heat dissipation in the test process is met; and the compensation plate can be quickly recovered when the plug switching mechanism is idle, gap compensation at the accommodating groove is satisfied, the sealing of the whole plug switching mechanism in idle is ensured, the intervention of external dust is prevented, and the service life is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of adapter devices, and in particular to a plug adapter device for electromagnetic compatibility testing of a charging pile. Background Art

[0002] As an important charging device for electric vehicles, the electromagnetic compatibility (EMC) of charging piles is of vital importance. Electromagnetic compatibility refers to the ability of a device or system to work normally in its electromagnetic environment and not cause unbearable electromagnetic interference to anything in the environment; for charging piles, this means that it needs to operate safely and reliably in various electromagnetic environments without causing adverse effects on the surrounding electromagnetic environment; in the research and development, production and maintenance of charging piles, electromagnetic compatibility testing is an indispensable part; however, traditional testing methods often have many inconveniences, such as complex test circuits and low test efficiency; in order to solve these problems, researchers began to explore new testing technologies and devices, among which the plug adapter is an important innovation; through the plug adapter, the output gun head of the charging pile can be directly connected to the resistive load or other test equipment, so as to perform electromagnetic compatibility testing without the need to use complex test circuits.

[0003] In the prior art, for example, a portable AC charging pile test tool with publication number CN115980403A includes a control box, a handle is fixed on the top surface of the control box by screws, a charging gun socket is fixed on one side of the handle by screws, the charging gun socket is used to connect an external charging gun, and a plurality of power sockets for connecting external loads are arranged in an array on the other side of the handle, and a power meter is arranged on one side of the charging gun socket. The characteristic of this structure is that the top surface of the control box is divided into an access area and an output area by the handle, the functional area is simply arranged, and all functional operating components are concentrated on the front of the control box. The test tool can be placed on the ground or on the desktop to start the test process. The test operation is convenient and quick to use, and the setting of the handle can make the test tool more portable.

[0004] However, in actual use, the plug interface on the socket lacks protection, and the connection between the plug adapter and the charging pile output gun head or test equipment may not be stable enough. When one party pulls, the adapter position may accidentally loosen or fall off, resulting in inaccurate electromagnetic compatibility test data; and during the test, due to the transmission and conversion of current, additional heat may be generated, causing equipment safety problems.

[0005] Therefore, the present invention proposes a plug adapter for electromagnetic compatibility testing of charging piles to solve the problem that the connection between the existing plug adapter and the output gun head of the charging pile or the test equipment may be unstable, and when one party pulls, the adapter position is prone to accidentally loosening or falling off. The plug adapter can stably connect the output gun head of the charging pile and prevent the output gun head of the charging pile from being loosened by accidental pulling by external force. The adapter not only meets the electromagnetic compatibility test of the charging pile, but also meets the heat dissipation during the test, and also meets the sealing compensation of the heat dissipation holes of the adapter when the adapter is idle. Summary of the invention

[0006] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a plug adapter for the electromagnetic compatibility test of a charging pile, which has the advantages of an adapter meeting the electromagnetic compatibility test of the charging pile, heat dissipation during the test, and sealing compensation of the heat dissipation holes when the adapter is idle.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a plug adapter device for electromagnetic compatibility testing of a charging pile, comprising an electromagnetic compatibility tester for a charging pile and a plug adapter mechanism, wherein the plug adapter mechanism is installed on the inner side of the electromagnetic compatibility tester for the charging pile, and the plug adapter mechanism is composed of an adapter base, a socket and a socket top cover, and the socket top cover is rotatably installed on the upper end of the socket, and mounting grooves are respectively provided on the inner walls on both sides of the adapter base, and a compensation block is fixedly installed on the inner surface of the mounting groove, and a vertical plate is fixedly connected to the upper end of the compensation block, and a sliding groove is provided on the inner wall of the vertical plate, and a push block is slidably connected to the inner surface of the sliding groove, and the two side surfaces of the push block are fixedly connected to the limiting edge blocks, and movable mechanisms are arranged on both sides of the limiting edge blocks, and receiving grooves are provided on the inner walls on both sides of the socket, and the inner surface of the receiving groove is movably connected to the compensation plate, and the inner walls on both sides of the compensation plate are provided with beveled edge block beveled edge grooves.

[0008] Preferably, the movable mechanism includes movable arm rod 1, movable arm rod 2 and a bevel insert block, one end of the movable arm rod 1 is rotatably connected to the outer side surface of the limiting edge block, the other end of the movable arm rod 1 is rotatably connected to a hinge seat, the hinge seat is fixedly installed on one end of the movable arm rod 2, the other end of the movable arm rod 2 is fixedly connected to one end of the bevel insert block, and the outer surface of the bevel insert block is movably inserted into the inner wall of the bevel insert groove of the bevel insert block.

[0009] Preferably, a square groove is provided on the upper surface of the adapter base, and a spring piece is fixedly connected to the inner side wall of the square groove, and the spring piece is in a "yao"-shaped block structure. The other end of the spring piece is fixedly connected to a connecting rod, and the outer surface of the connecting rod is slidingly connected to the inner wall of the square groove, and the outer surface of the upper end of the connecting rod is fixedly connected to the inner surface of the beveled plug block.

[0010] Preferably, a rubber soft pad is fixedly installed at the upper end of the compensation plate. The outer surface of the rubber soft pad is in movable contact with the inner side surface of the socket top cover. Sliders are fixedly connected to both side surfaces of the compensation plate, and sliding grooves are arranged on the outer surfaces of the sliders. The sliding grooves are opened on both sides of the receiving groove.

[0011] Preferably, a second slot is penetrated and opened on the inner wall of the sliding groove. The inner surface of the second slot is in movable connection with the outer surface of the bevel plug. Heat dissipation holes and a first slot are also opened on the curved surface of the socket. The heat dissipation holes penetrate the inner wall of the socket. Two groups of the first slots are opened and symmetrically distributed about the longitudinal central axis of the receiving groove. The inner surface of the first slot is in movable insertion connection with the outer surface of the bevel plug.

[0012] Preferably, a guide rod is fixedly connected to the inner surface of the sliding groove. The outer surface of the guide rod is in sliding connection with the inner wall of the push block. A contact elastic wire is fixedly connected to the upper end of the push block. The contact elastic wire is slidably sleeved outside the guide rod, and the other end of the contact elastic wire is fixedly connected to the inner top surface of the sliding groove.

[0013] Preferably, a buckling groove is opened on the outer inner wall of the push block. Locking blocks are fixedly installed on both outer surfaces of the push block. An anti-retreat braking component is arranged on the outer side surface of the locking block.

[0014] Preferably, the anti-retreat braking component includes a fixed piece, a movable piece and a locking groove plate. Reserved grooves are opened on the inner surfaces of the fixed piece and the movable piece. The inner surface of the reserved groove is in movable connection with the outer surface of the limit edge block. Both ends of the fixed piece are respectively fixedly connected to the outer surface of the vertical plate. The movable piece is slidably installed outside the vertical plate.

[0015] Preferably, a stress convex plate is fixedly installed on the outer surface of the movable piece. A locking groove plate is fixedly installed on one side of the movable piece close to the push block. Two groups of the locking groove plates are arranged and symmetrically distributed about the horizontal central axis of the movable piece. The two groups of the locking groove plates are in a "C"-shaped plate structure. The inner side surface of the locking groove plate is in movable contact with the outer surface of the locking block.

[0016] Preferably, an I-shaped elastic block is fixedly connected to one side of the movable piece far from the locking groove plate. The other end of the I-shaped elastic block is fixedly connected to the outer surface of the fixed piece. The I-shaped elastic block is in an "I"-shaped block structure. Rubber arc-shaped elastic pieces are fixedly connected to both sides of the I-shaped elastic block. Two groups of the I-shaped elastic block and the rubber arc-shaped elastic pieces are arranged and symmetrically distributed about the horizontal central axis of the fixed piece and the movable piece.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The present invention proposes a plug adapter for electromagnetic compatibility testing of a charging pile. The plug adapter mechanism is used to realize the adapter of the oil gun at the output end of the charging pile, which ensures the correct connection and signal transmission between the charging pile and the test equipment, simplifies the test process, and cooperates with the movable mechanism to ensure that the compensation plate can be easily extended and hidden, which not only meets the anti-dropping of the oil gun when extended, but also meets the auxiliary heat dissipation during the test; it can also quickly recover the compensation plate when the plug adapter mechanism is idle, meet the gap compensation at the receiving groove, ensure the sealing of the plug adapter mechanism as a whole when idle, prevent the intervention of external dust, and extend the service life; it solves the problem that the connection between the existing plug adapter and the output gun head of the charging pile or the test equipment is not stable enough and the adapter position is prone to accidental loosening or falling off. It can stably connect the plug adapter and the output gun head of the charging pile, while preventing the output gun head of the charging pile from being accidentally pulled and loosened by external force, meet the electromagnetic compatibility test of the charging pile, meet the heat dissipation during the test, and meet the sealing compensation of the heat dissipation hole of the adapter when the adapter is idle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 ;

[0020] Figure 2 The three-dimensional structure of the present invention is shown in FIG. Figure 2 ;

[0021] Figure 3 This is a structural schematic diagram of the charging pile output gun head inserted into the plug adapter mechanism of the present invention;

[0022] Figure 4 It is a structural schematic diagram of the charging pile output gun head of the present invention without being inserted into the plug adapter mechanism;

[0023] Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure at point A;

[0024] Figure 6 It is a schematic diagram of the structure of the socket top cover and the socket cover in a tight state of the present invention;

[0025] Figure 7 It is a schematic diagram of the connection structure between the adapter base and the socket of the present invention;

[0026] Figure 8 For the present invention Figure 7 A schematic diagram of the enlarged structure at B;

[0027] Fig. 9 It is a schematic structural diagram of a state in which a bevel inserting block of the present invention is inserted into a bevel inserting block bevel inserting groove;

[0028] Fig.10It is a structural schematic diagram of the bevel insert block of the present invention being separated from the bevel insert block bevel insert groove;

[0029] Fig.11 It is a schematic diagram of the connection structure between the push block and the anti-recoil brake assembly of the present invention;

[0030] Fig.12 It is a partial structural schematic diagram of the anti-recoil brake assembly of the present invention;

[0031] Fig.13 For the present invention Fig.12 Enlarged structural diagram at C.

[0032] In the figure: 1. Charging pile electromagnetic compatibility tester; 2. Plug adapter mechanism; 21. Adapter base; 22. Socket; 23. Socket cover; 231. Boss; 210. Mounting slot; 2100. Square slot; 3. Compensation block; 31. Vertical plate; 310. Slide slot; 311. Guide rod; 312. Abutment elastic wire; 32. Push block; 320. Buckle slot; 321. Limiting edge block; 33. Movable arm rod 1; 34. Movable arm rod 2; 341. Bevel Insert block; 342, connecting rod; 343, spring piece; 35, fixing plate; 350, reserved groove; 351, I-shaped spring block; 352, rubber arc spring piece; 36, movable plate; 361, force-bearing convex plate; 37, locking groove plate; 371, locking block; 220, receiving groove; 4, compensation plate; 40, oblique side groove; 41, rubber soft pad; 42, slider; 2200, heat dissipation hole; 2201, slot one; 2202, sliding groove; 2203, slot two. DETAILED DESCRIPTION

[0033] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] For example, see Figure 1-13The present invention provides a technical solution: a plug adapter for charging pile electromagnetic compatibility testing, comprising a charging pile electromagnetic compatibility tester 1 and a plug adapter mechanism 2, the plug adapter mechanism 2 is installed on the inner side of the charging pile electromagnetic compatibility tester 1, the plug adapter mechanism 2 is composed of an adapter base 21, a socket 22 and a socket top cover 23, the socket top cover 23 is rotatably installed on the upper end of the socket 22, and mounting grooves 210 are respectively opened on the inner walls of both sides of the adapter base 21, and the inner surface of the mounting groove 210 is fixed A compensation block 3 is fixedly installed, and a vertical plate 31 is fixedly connected to the upper end of the compensation block 3. A slide groove 310 is provided on the inner wall of the vertical plate 31. A push block 32 is slidably connected to the inner surface of the slide groove 310. The two side surfaces of the push block 32 are fixedly connected to the limited edge blocks 321. A movable mechanism is arranged on both sides of the limited edge block 321. Receiving grooves 220 are provided on the inner walls of both sides of the socket 22. The inner surface of the receiving groove 220 is movably connected to the compensation plate 4. The inner walls of both sides of the compensation plate 4 are provided with beveled edge block beveled edge grooves 40.

[0035] The socket top cover 23 is rotatably connected to one side of the socket 22 through a hinge, and bosses 231 are symmetrically installed on both sides of the socket top cover 23. The inner surface of the boss 231 is provided with a docking hole, and the inner surface of the docking hole is movably abutted against the top of the vertical plate 31; through the adaptation of the docking hole on the inner side of the boss 231 and the top position of the vertical plate 31, the stability of the socket top cover 23 and the socket 22 after the cover is strengthened, and the rubber soft pad 41 connected to the upper end of the compensation plate 4 further enhances the sealing of the two covers.

[0036] Embodiment 2, refer to the attached Figure 1-13 , on the basis of the first embodiment, in order to realize the compensation of the receiving groove 220 and the anti-dropping of the gun head position at the output end of the charging pile: a rubber soft pad 41 is fixedly installed on the upper end of the compensation plate 4, and the outer surface of the rubber soft pad 41 is movably abutted against the inner side surface of the socket top cover 23, and the two side surfaces of the compensation plate 4 are fixedly connected with sliders 42, and the outer surface of the slider 42 is provided with a sliding groove 2202, and the sliding groove 2202 is opened on both sides of the receiving groove 220; a slot 2203 is opened through the inner wall of the sliding groove 2202, and the inner surface of the slot 2203 is movably connected with the outer surface of the bevel plug block 341, and a heat dissipation hole 2200 and a slot 1 2201 are also opened on the curved surface of the socket 22, and the heat dissipation hole 2200 passes through the inner wall of the socket 22, and the slot 1 2201 is opened in two groups and is symmetrically distributed about the longitudinal center axis of the receiving groove 220, and the inner surface of the slot 1 2201 is movably plugged with the outer surface of the bevel plug block 341;

[0037] When the compensation plate 4 is completely received into the inner side of the receiving groove 220 as the compensation plate, the movable mechanism is in the initial state. When the compensation plate 4 is hidden, the movable mechanism serves as a locking member of the compensation plate 4. When the compensation plate 4 needs to be extended, the movable mechanism is first unlocked, and then the compensation plate 4 is pulled upward. At this time, the sliders 42 on both sides of the compensation plate 4 are adapted to slide on the inner wall of the sliding groove 2202. Specifically, Figure 4 and Figure 5 As shown, after the compensation plate 4 is fully extended, the unlocked movable mechanism returns to its initial position again. At this time, the bevel insert block 341 enters from the slot two 2203 and is inserted back into the slot one 2201. In this way, the movable mechanism is locked again while the bottom end position of the compensation plate 4 is abutted. The movable mechanism can now serve as an anti-retraction part of the compensation plate 4 to prevent the oil gun from being pulled off by external force due to the retraction of the compensation plate 4. In this way, the installation of the movable mechanism can achieve different effects in different states.

[0038] Embodiment 3, refer to the attached Figure 1-13 On the basis of the second embodiment, in order to unlock the compensation plate 4: the movable mechanism includes a movable arm rod 1 33, a movable arm rod 2 34 and a bevel insert block 341, one end of the movable arm rod 1 33 is rotatably connected to the outer side surface of the limiting edge block 321, and the other end of the movable arm rod 1 33 is rotatably connected to a hinge seat, which is fixedly installed on one end of the movable arm rod 2 34, and the other end of the movable arm rod 2 34 is fixedly connected to one end of the bevel insert block 341, and the outer surface of the bevel insert block 341 is movably plugged into the inner wall of the bevel insert groove 40 of the bevel insert block; a square groove 2100 is provided on the upper surface of the adapter base 21, and a spring piece 343 is fixedly connected to the inner side wall of the square groove 2100, and the spring piece 343 is in a "yao"-shaped block structure. The other end of 3 is fixedly connected with a connecting rod 342, the outer surface of the connecting rod 342 is slidably connected to the inner wall of the square groove 2100, and the outer surface of the upper end of the connecting rod 342 is fixedly connected to the inner surface of the beveled insert block 341; the inner surface of the slide groove 310 is fixedly connected with a guide rod 311, the outer surface of the guide rod 311 is slidably connected to the inner wall of the push block 32, and the upper end of the push block 32 is fixedly connected with an abutting elastic wire 312, the abutting elastic wire 312 is slidably sleeved on the outside of the guide rod 311, and the other end of the abutting elastic wire 312 is fixedly connected to the inner top surface of the slide groove 310; a buckling groove 320 is provided on the outer inner wall of the outer side of the push block 32, and locking blocks 371 are fixedly installed on the outer surfaces of both sides of the push block 32, and the outer side surface of the locking block 371 is provided with an anti-retraction brake assembly;

[0039] When the movable mechanism is unlocked, the finger is inserted into the buckling groove 320 provided on the push block 32 and the push block 32 is lifted upward. At this time, the push block 32 slides on the inner wall of the slide groove 310, and the elastic wire 312 is elastically compressed by the push of the top of the push block 32. At this time, the limit edge block 321 slides synchronously on the surface of the vertical plate 31. During the rising process of the push block 32, the angle of the movable arm rod 33 connecting the two sides of the limit edge block 321 changes. At this time, the two sets of movable arm rods 33 form a The angle of the expansion, through the setting of the connecting rod 342, when the movable arm rod 1 33 expands outward, the connecting rod 342 slides outward on the inner wall of the square groove 2100, and the spring piece 343 is pushed by the connecting rod 342 to generate compression. At the same time, the two groups of movable arm rods 2 34 and the bevel insert block 341 move outward horizontally relative to each other, and the bevel insert block 341 releases the restriction on both sides of the compensation plate 4. At this time, the operator only needs to use the other hand to pull the compensation plate 4 upward to protect both sides of the oil gun;

[0040] After the compensation plate 4 is fully extended, the slider 42 reaches the inner top position of the sliding groove 2202. At this time, the compensation plate 4 can no longer be pulled upward, and then the hand pulling the push block 32 is released. At this time, the push block 32 is reset downward by the reverse elastic force of the abutting elastic wire 312 and the spring piece 343, and the push block 32 moves on the inner side of the slide groove 310. At this time, the angle between the two sets of movable arm rods 1 33 becomes smaller, and the movable arm rods 2 34 and the beveled insert block 341 on both sides are pulled inward. The beveled insert block 341 passes through the slot 2 203 and is inserted back into the inner side of the slot 1 2201. At this time, the upper end of the beveled insert block 341 is just at the bottom of the compensation plate 4, and can directly abut the bottom of the compensation plate 4, thereby preventing the compensation plate 4 from falling, ensuring that the compensation plate 4 always protects the gun head part of the output end of the charging pile during the electromagnetic compatibility test to prevent it from falling off;

[0041] It should be noted that after the compensation plate 4 is fully extended out of the receiving slot 220, the heat dissipation holes 2200 are exposed while protecting the gun head of the oil gun, which can provide auxiliary heat dissipation for the additional heat generated by current transmission and conversion during the test; and when the compensation plate 4 is recovered to the receiving slot 220, the heat dissipation holes 2200 are blocked, and dust will not enter the socket 22 due to long-term exposure, thereby extending the overall service life of the equipment and improving the accuracy of the test data.

[0042] Embodiment 4, refer to the attached Figure 1-13, on the basis of Embodiment 3, in order to realize the self-shifting of the pushing block 32, an anti-retreat braking component is added in this embodiment: The anti-retreat braking component includes a fixed piece 35, a movable piece 36 and a locking groove plate 37. Reserved grooves 350 are formed on the inner surfaces of the fixed piece 35 and the movable piece 36. The inner surface of the reserved groove 350 is movably connected to the outer surface of the limit edge block 321. Both ends of the fixed piece 35 are fixedly connected to the outer surface of the vertical plate 31, and the movable piece 36 is slidably installed on the outside of the vertical plate 31; A force-receiving convex plate 361 is fixedly installed on the outer surface of the movable piece 36, and a locking groove plate 37 is fixedly installed on the side of the movable piece 36 close to the pushing block 32. Two groups of locking groove plates 37 are provided and symmetrically distributed about the horizontal central axis of the movable piece 36. The two groups of locking groove plates 37 are in a "C"-shaped plate structure. The inner side surface of the locking groove plate 37 is movably abutted against the outer surface of the locking block 371; A工字-shaped elastic block 351 is fixedly connected to the side of the movable piece 36 away from the locking groove plate 37. The other end of the工字-shaped elastic block 351 is fixedly connected to the outer surface of the fixed piece 35. The工字-shaped elastic block 351 is in an "I"-shaped block structure. Rubber arc-shaped elastic pieces 352 are fixedly connected to both sides of the工字-shaped elastic block 351. Two groups of the工字-shaped elastic block 351 and the rubber arc-shaped elastic pieces 352 are provided and symmetrically distributed about the horizontal central axis of the fixed piece 35 and the movable piece 36;

[0043] Two groups of relatively distributed locking blocks 371 are added on both sides of the pushing block 32. When the pushing block 32 and the limit edge block 321 are pushed and moved to different positions, it is necessary to brake the position where the pushing block 32 stops; Specifically, when the斜边inserting block 341 is inserted into the first slot 2201 and the斜边inserting edge slot 40 of the斜边inserting block, the pushing block 32 is in the lower position of the sliding groove 310, as Fig. 9 shown, and the locking blocks 371 on the lower side of the pushing block 32 are respectively located inside the locking groove plates 37 at the lower end of the movable piece 36; When the斜边inserting block 341 is withdrawn from the斜边inserting edge slot 40 of the斜边inserting block, the pushing block 32 is in the upper position of the sliding groove 310, specifically as Fig.10As shown, the locking block 371 of the push block 32 is located on the inner side of the locking groove plate 37 at the upper end of the movable piece 36; when the pair is moved, the operator buckles the buckling groove 320 on the push block 32 with one hand, and puts the thumb and index finger of the other hand on the inner side of the two sets of force-bearing convex plates 361, and locks the push block 32 in different states, and pushes outward with force to make the movable piece 36 move relatively toward the locking groove plate 37. At this time, the I-shaped spring block 351 and the rubber arc spring piece 352 are compressed and deformed by external force. When the locking groove plate 37 moves to both sides, the push block 32 can be locked in the slide groove The inner side of 310 can be moved at will. When it moves to the above position, you only need to loosen the two fingers that push the force-bearing convex plate 361 to reset the movable sheet 36, so that the locking groove plate 37 can engage the locking block 371, thereby completing the locking of the push block 32 and realizing double locking of the bevel plug block 341 in different states, ensuring the locking of the compensation plate 4 when it is stored and preventing it from retreating when it is extended; further solving the problem that the connection between the existing plug adapter and the charging pile output gun head or test equipment is not stable enough and the adapter position is prone to accidental loosening or falling off.

[0044] Embodiment 5, based on embodiment 4, a method for using a plug adapter for electromagnetic compatibility testing of a charging pile is proposed, comprising the following steps:

[0045] Step 1: Insert the charging pile output gun head into the plug adapter to ensure that it is inserted in place without looseness; if compensation or anti-dropping of the compensation plate 4 is required, first unlock the movable mechanism, insert your finger into the buckle slot 320, lift the push block 32 upward, so that the movable arm rod 1 33 expands outward, and at the same time, the movable arm rod 2 34 and the bevel insert block 341 move horizontally outward relative to each other to release the restrictions on both sides of the compensation plate 4, and then use the other hand to pull the compensation plate 4 upward until the slider 42 reaches the inner top position of the sliding slot 2202 and cannot be pulled upward any further;

[0046] Step 2: When locking the movable mechanism, release the hand that lifts the push block 32, and the push block 32 is reset downward under the influence of the reverse elastic force, and the angle between the two sets of movable arm rods 1 33 becomes smaller, and the movable arm rods 2 34 on both sides and the bevel insert block 341 are pulled inward, and the bevel insert block 341 passes through the second slot 2203 and is inserted back into the inner side of the first slot 2201, and abuts against the bottom of the compensation plate 4, completing the locking;

[0047] Step 3: Start the test equipment and perform the electromagnetic compatibility test according to the test requirements. During the test, pay attention to the working status of the plug adapter to ensure that there is no abnormality.

[0048] Step 4. After the test is completed, first disconnect the connection between the test equipment and the plug adapter, unlock the movable mechanism, unlock the compensation plate 4 and push it back into the receiving slot 220, remove the charging pile output gun head from the socket 22, and finally, flip the socket top cover 23 and tighten the socket top cover 23 and the socket 22 with the fasteners.

[0049] Although 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 plug adapter device for electromagnetic compatibility testing of a charging pile, comprising a charging pile electromagnetic compatibility tester (1) and a plug adapter mechanism (2), characterized in that: The plug adapter mechanism (2) is installed on the inner side of the charging pile electromagnetic compatibility tester (1). The plug adapter mechanism (2) is composed of an adapter base (21), a socket (22) and a socket cover (23). The socket cover (23) is rotatably installed on the upper end of the socket (22). The inner walls on both sides of the adapter base (21) are respectively provided with mounting grooves (210). The inner surface of the mounting groove (210) is fixedly installed with a compensation block (3). The upper end of the compensation block (3) is fixedly connected to a vertical plate (31). A slide groove (310) is provided on the inner wall of the vertical plate (31), a push block (32) is slidably connected to the inner surface of the slide groove (310), a limiting edge block (321) is fixedly connected to the two side surfaces of the push block (32), and a movable mechanism is arranged on the two sides of the limiting edge block (321), a receiving groove (220) is provided on the inner walls on both sides of the socket (22), a compensation plate (4) is movably connected to the inner surface of the receiving groove (220), and a beveled edge block beveled edge groove (40) is provided on the inner walls on both sides of the compensation plate (4).

2. A plug adapter for electromagnetic compatibility testing of a charging pile according to claim 1, characterized in that: The movable mechanism comprises a movable arm rod 1 (33), a movable arm rod 2 (34) and a bevel insert block (341); one end of the movable arm rod 1 (33) is rotatably connected to the outer side surface of the limiting edge block (321); the other end of the movable arm rod 1 (33) is rotatably connected to a hinge seat; the hinge seat is fixedly mounted on one end of the movable arm rod 2 (34); the other end of the movable arm rod 2 (34) is fixedly connected to one end of the bevel insert block (341); the outer surface of the bevel insert block (341) is movably inserted into the inner wall of the bevel insert groove (40) of the bevel insert block.

3. A plug adapter for electromagnetic compatibility testing of a charging pile according to claim 2, characterized in that: A square groove (2100) is provided on the upper surface of the adapter base (21), and a spring sheet (343) is fixedly connected to the inner side wall of the square groove (2100), and the spring sheet (343) is in a "yao"-shaped block structure. The other end of the spring sheet (343) is fixedly connected to a connecting rod (342), and the outer surface of the connecting rod (342) is slidably connected to the inner wall of the square groove (2100), and the outer surface of the upper end of the connecting rod (342) is fixedly connected to the inner surface of the beveled edge plug block (341).

4. A plug adapter for electromagnetic compatibility testing of a charging pile according to claim 1, characterized in that: A rubber pad (41) is fixedly mounted on the upper end of the compensation plate (4), and the outer surface of the rubber pad (41) is movably abutted against the inner surface of the socket top cover (23). Sliders (42) are fixedly connected to the two side surfaces of the compensation plate (4), and the outer surface of the slide block (42) is provided with a sliding groove (2202), and the sliding groove (2202) is opened on both sides of the receiving groove (220).

5. A plug adapter for electromagnetic compatibility testing of a charging pile according to claim 4, characterized in that: On the inner wall of the sliding groove (2202), a second slot (2203) is penetratingly formed. The inner surface of the second slot (2203) is movably connected to the outer surface of the bevel plug (341). On the curved surface of the socket (22), a heat dissipation hole (2200) and a first slot (2201) are also formed. The heat dissipation hole (2200) penetrates the inner wall of the socket (22). Two groups of the first slots (2201) are formed and symmetrically distributed about the longitudinal central axis of the receiving groove (220). The inner surface of the first slot (2201) is movably inserted into the outer surface of the bevel plug (341).

6. A plug adapter for electromagnetic compatibility testing of a charging pile according to claim 1, characterized in that: On the inner surface of the sliding groove (310), a guide rod (311) is fixedly connected. The outer surface of the guide rod (311) is slidably connected to the inner wall of the push block (32). At the upper end of the push block (32), a contact elastic wire (312) is fixedly connected. The contact elastic wire (312) is slidably sleeved outside the guide rod (311), and the other end of the contact elastic wire (312) is fixedly connected to the inner top surface of the sliding groove (310).

7. A plug adapter for electromagnetic compatibility testing of a charging pile according to claim 6, characterized in that: On the outer inner wall of the push block (32), a buckling groove (320) is formed. On the outer surfaces of both sides of the push block (32), locking blocks (371) are fixedly installed. On the outer side surface of the locking block (371), an anti-retreat braking assembly is provided.

8. A plug adapter for electromagnetic compatibility testing of a charging pile according to claim 7, characterized in that: The anti-retreat braking assembly includes a fixed piece (35), a movable piece (36), and a locking groove plate (37). On the inner surfaces of both the fixed piece (35) and the movable piece (36), a reserved groove (350) is formed. The inner surface of the reserved groove (350) is movably connected to the outer surface of the limit edge block (321). The two ends of the fixed piece (35) are respectively fixedly connected to the outer surface of the vertical plate (31). The movable piece (36) is slidably installed outside the vertical plate (31).

9. A plug adapter for electromagnetic compatibility testing of a charging pile according to claim 8, characterized in that: On the outer surface of the movable piece (36), a force-receiving convex plate (361) is fixedly installed. On the side of the movable piece (36) close to the push block (32), a locking groove plate (37) is fixedly installed. Two groups of the locking groove plates (37) are formed and symmetrically distributed about the horizontal central axis of the movable piece (36). The two groups of the locking groove plates (37) are in a "C"-shaped plate structure. The inner side surface of the locking groove plate (37) is movably abutted against the outer surface of the locking block (371).

10. A plug adapter for electromagnetic compatibility testing of a charging pile according to claim 9, characterized in that: On the side of the movable piece (36) far from the locking groove plate (37), an I-shaped elastic block (351) is fixedly connected. The other end of the I-shaped elastic block (351) is fixedly connected to the outer surface of the fixed piece (35). The I-shaped elastic block (351) is in an "I"-shaped block structure. On both sides of the I-shaped elastic block (351), rubber arc-shaped elastic pieces (352) are fixedly connected. Two groups of both the I-shaped elastic block (351) and the rubber arc-shaped elastic pieces (352) are formed and symmetrically distributed about the horizontal central axis of the fixed piece (35) and the movable piece (36).

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