Automatic locking charging pile plug

Abstract

An automatic locking charging pile plug comprises a gun body, a plug assembly, an electromagnet and a permanent magnet. One end of the plug is provided with a groove, and the end of the plug provided with the groove is provided with a slideway; the electromagnet is fixed at one end of the slide way, and the permanent magnet is arranged in the slide way; the plug assembly is fixedly installed on the end face, provided with the groove, of the gun body. And an automatic locking part is arranged between the plug assembly and the permanent magnet. The problem of automatic locking is effectively solved, the electromagnet is arranged to be matched with the permanent magnet, the plug pin is arranged to serve as a driving mechanism, the structure is simple, cost is low, and the effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of charging piles, in particular to a charging pile plug with automatic locking. Background Art

[0002] A charging pile is a charging station for electric vehicles, and its appearance is like a parking time meter. With the continuous popularization of new energy vehicles, a large number of charging piles have been put into people's lives. One charging pile can charge two cars simultaneously, and the charging time from out of power to full charge is 6 to 8 hours. The charging pile can achieve charging by timing, calculating the electricity consumption, and calculating the amount of money, and can be used as a power purchase terminal for citizens.

[0003] According to a charging pile plug with an automatic detachment type described in the application number 202211741913.X, a charging pile plug can be provided to disconnect the connection between the plug and the socket of the charging pile after charging is completed.

[0004] However, due to the movement of a pair of electromagnets during charging and non-charging, the wires connected to the magnets are worn to varying degrees during long-term use. Once damaged, it is extremely harmful and difficult to replace. Content of the Utility Model

[0005] In view of the above problems, the present utility model is proposed to provide a charging pile plug with automatic locking that overcomes or at least partially solves the above problems.

[0006] To solve the above problems, the present utility model discloses a charging pile plug with automatic locking, including: a gun body, a plug assembly, an electromagnet, and a permanent magnet; a groove is provided at one end of the plug, and a slideway is provided at the end of the plug where the groove is located; the electromagnet is fixed at one end of the slideway, and the permanent magnet is arranged in the slideway; the plug assembly is fixedly installed on the end face of the gun body where the groove is located; an automatic locking component is arranged between the plug assembly and the permanent magnet.

[0007] Further, the groove is an O-shaped groove.

[0008] Further, the plug assembly includes a spring, a protective sleeve, and a plug; the protective sleeve is connected to the inner column of the O-shaped groove through a slideway; one end of the protective sleeve is fixedly provided with the plug; the spring is arranged at the bottom end of the O-shaped groove and the end of the protective sleeve away from the plug.

[0009] Further, the protective sleeve is provided with a first hole; a second hole is provided above the slideway, and the positions overlap during the charging state.

[0010] Further, the automatic locking component further includes a bolt; the bolt is arranged in the second hole; a magnetic pole is arranged at one end of the bolt close to the permanent magnet.

[0011] Further, the automatically locking charging pile plug further includes a temperature sensor; the temperature sensor is disposed on the end face of the inner column.

[0012] Further, the automatically locking charging pile plug further includes a switch; the switch is disposed in the circuit of the electromagnet.

[0013] Further, the automatically locking charging pile plug further includes a moving block; the moving block is connected to the side of the gun body near the socket end through a slideway.

[0014] The present utility model has the following advantages:

[0015] An electromagnet and a permanent magnet are provided, and a magnetic plug pin that is driven in cooperation therewith. By changing the circuit of the electromagnet, the magnetic field is changed, thereby changing the movement of the permanent magnet, and further changing the movement of the plug pin. Locking and unlocking can be realized under a circuit signal, so as to achieve automatic locking. The structure is simple, the cost is low, and the effect is good. Description of the Drawings

[0016] Figure 1 is a schematic structural diagram of an embodiment of an automatically locking charging pile plug of the present utility model;

[0017] Figure 2 is the present utility model Figure 1 The enlarged structural diagram of the plug part in.

[0018] In the figure: 1, gun body; 2, electromagnet; 3, permanent magnet; 4, plug assembly; 5, plug pin; 6, switch; 7, moving block; 8, temperature sensor; 41, spring; 42, protective sleeve; 43, plug. Detailed Embodiment

[0019] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the present utility model will be further described in detail below with reference to the drawings and specific embodiments.

[0020] It should be noted that the description of the wire is omitted in this application. The wire in the charging pile is well known, and will be described together with the wire when specifically describing the embodiment.

[0021] Embodiment 1

[0022] Refer to Figure 1, showing a schematic structural diagram of an automatically locking charging pile plug of the present utility model, specifically including: an automatically locking charging pile plug, characterized by comprising: a gun body 1, a plug assembly 4, an electromagnet 2 and a permanent magnet 3; one end of the gun body 1 is provided with a groove, and a slideway is arranged in the groove; it should be noted that the other end of the gun body 1 is provided with an electric wire, which is connected to the charging pile, and the plug assembly 4, the electromagnet 2 and the permanent magnet 3 are arranged in the groove, and the slideway is arranged on the end face of the gun body 1 where the groove is provided, specifically at the non-groove position of the gun body 1, and the electromagnet 2 and the permanent magnet 3 are placed in the slideway.

[0023] The electromagnet 2 is fixed at one end of the slideway, and the permanent magnet 3 is arranged in the slideway. It should be noted that the electromagnet 2 is a device that generates electromagnetic force when energized. A conductive winding matching its power is wound around the iron core. This current-carrying coil has magnetism like a magnet and is called an electromagnet. We usually make it in a bar shape or a horseshoe shape to make the iron core easier to magnetize. In addition, in order to make the electromagnet demagnetize immediately when the power is cut off, we often use soft iron or silicon steel materials with faster demagnetization to make it. Such an electromagnet has magnetism when energized and the magnetism disappears immediately after the power is cut off. It can also achieve a change in the magnetic pole by changing the current.

[0024] A guide rail is provided at the bottom end of the permanent magnet 3. The permanent magnet 3 reciprocates on the slideway. The plug assembly 4 is fixedly installed on the end face of the gun body 1 with a groove. It should be noted that the permanent magnet 3 is a magnet with different magnetic poles at both ends. Since the realization of the functions of this application requires the use of the principle of like poles repelling and opposite poles attracting of magnets, it is assumed that the end of the permanent magnet 3 close to the electromagnet 2 is the N pole, and the other end is the S pole. When the magnetic field formed by the electromagnet 2 is the same as the N pole, at this time, a huge repulsive force is generated between the electromagnet 2 and the permanent magnet 3, causing the permanent magnet 3 to move away from the electromagnet 2. This is the charging locked state. Under the action of the permanent magnet 3, the plug assembly 4 is locked at this time; when the charging is completed or the charging pile plug is just removed, at this time, the electromagnet 2 generates a magnetic field opposite to the N pole, generating a huge suction force on the permanent magnet 3, causing the permanent magnet 3 to move towards the electromagnet 2, and the plug assembly 4 is unlocked; similarly, if the end of the permanent magnet 3 close to the electromagnet 2 is the S pole, and the other end is the N pole, at this time, when the electromagnet generates a magnetic field the same as the S pole, a huge repulsive force is generated between the electromagnet 2 and the permanent magnet, causing the permanent magnet 3 to move away from the electromagnet 2. At this time, it is the charging locked state. Under the action of the permanent magnet 3, the plug assembly 4 is locked at this time, and the unlocking state principle is the same as described above. It should be added that the electromagnet 2 is electrically connected to the charging pile center. When the plug is not inserted into the target position, the charging pile center controls the current to make the electromagnet 2 emit a magnetic field opposite to the end of the permanent magnet 3 close to the electromagnet 2, generating a huge suction force, causing the permanent magnet 3 to move towards the electromagnet 2, not locked or unlocked; when the plug is inserted into the target position, the charging pile center controls the current change to make the electromagnet 2 emit a magnetic field the same as the permanent magnet 3 and the end of the electromagnet 2, generating a huge repulsive force, causing the permanent magnet 3 to move away from the electromagnet 2, completing the locking. This unlocking and locking through the action of the magnet is the automatic locking and unlocking component.

[0025] Further, at least one set of the electromagnet 2 and the permanent magnet 3 is provided, preferably three sets, symmetrically distributed along the cross-section of the plug, which is beneficial to stable force and maintaining balance; furthermore, the permanent magnet 3 can be replaced with a moving block, and two magnets with different poles are arranged at both ends of the moving block, and it is necessary to ensure that the magnetic force generated between the magnet and the electromagnet 2 can drive the moving block to move.

[0026] In this embodiment, by setting the magnet assembly and using the suction and repulsive forces of the magnet, the automatic locking and unlocking of the plug assembly is realized. This setting has a long service life, is stable, and has a low replacement cost.

[0027] Embodiment 2

[0028] Refer to Figure 2, the groove is an O-shaped groove which is not used for installing an O-ring. After the O-shaped groove is dug out, an inner column is formed at this part of the plug. The inner column is cylindrical and one end is exposed. Further, the plug assembly 4 includes a spring 41, a protective sleeve 42 and a plug 43; the protective sleeve 42 is connected to the inner column of the O-shaped groove through a slideway; one end of the protective sleeve 42 is fixedly provided with the plug 43; the spring 41 is arranged at the bottom end of the groove and the end of the protective sleeve 42 far from the plug. It should be noted that the spring 41 surrounds the inner column, with one end abutting against the bottom of the groove and the other end abutting against the protective sleeve 42. The spring 41 is the key to the automatic locking device. Depending on the storage and release of its elastic potential energy, it completes automatic locking and unlocking. Specifically, how to achieve this will be described in combination with the following statements; in addition to this, at this position, in addition to setting the spring 41, any material with the same performance as the spring 41 can also be set, which can achieve reset and has a long service life, such as a shrapnel, etc.

[0029] Further, the protective sleeve 42 is provided with a first hole; a second hole is provided above the slideway, and the positions overlap in the charging state. It should be noted that during installation, the rotation, movement in the Y-axis and Z-axis directions of the protective sleeve 42 need to be restricted, and only its movement in the X-axis direction (taking the axis direction of the inner column as the X-axis direction) is allowed. After the first hole and the second hole are aligned and can overlap at a certain moment position, installation can be carried out. At the same time, assuming the length of the protective sleeve 42 should be at least equal to the sum of the length of the inner column and the length of the plug, so that the spring 41 can wrap the plug 43 by the protective sleeve 42 in the natural state.

[0030] Furthermore, the automatic locking component further includes a bolt 5; the bolt 5 is arranged in the second hole; a magnetic pole is provided at the end of the bolt 5 near the permanent magnet 3. It should be noted that in the implementation of this application, the bolt 5 is used as the transmission component. In fact, a crank-slider mechanism and an electric telescopic rod can also be provided. Preferably, the bolt 5 is used, and the advantages are simple structure, low cost, and long service life. When not charged, the bolt 5 is in the second hole. Due to the attraction between the magnetic pole of the bolt 5 and the permanent magnet, even if it is arranged at other positions in this hole, it will be attracted by the permanent magnet 3 and move towards it. At this time, the spring 42 is in its natural state; when charging, plug the plug into the socket. Under the action of force, the plug 41 compresses the spring 41 and moves in the X-axis direction. At this time, the circuit is powered on, and the charging pile affects the electromagnet 2 by changing the current, causing it to generate a repulsive force, moving the permanent magnet 3 away from the electromagnet 2. Then, the electromagnet 2 also generates a repulsive force at this time, moving the bolt 5 in the direction away from the permanent magnet 3. Also, since the upper end of the second hole is blocked by the protective sleeve at this time, the bolt 5 can only stay in the second hole. During the continuous compression of the spring 41 by the protective sleeve 42, when the positions of the first hole and the second hole overlap, the bolt 5 instantaneously moves into the first hole under the action of the repulsive force. At this time, it should be noted that the length of the bolt 5 should be greater than the depth of the first hole, and the length of the second hole is greater than the length of the bolt 5 to complete the locking; after charging is completed, the charging pile gives a signal, the electromagnet 2 generates an attractive force, the permanent magnet 3 moves towards the electromagnet 2, and then, the permanent magnet 3 also generates an attractive force, and the bolt 5 moves towards the permanent magnet 3. When the bolt 5 leaves the first hole, the spring 41 immediately resets, and the protective sleeve 42 moves towards the plug 43 under the elastic force of the spring 41, causing the plug 43 to leave the socket, thereby achieving power-off. The above process is how the automatic locking realizes separation.

[0031] Furthermore, a temperature sensor 8 is also included; the temperature sensor 8 is arranged on the cross-section of the inner column to monitor the temperature of the protective sleeve 42 at all times. The temperature sensor 8 is electrically connected to the charging pile. When the temperature sensor detects a signal of abnormal temperature, it immediately feeds back to the charging pile, and the charging pile immediately changes the current to control the electromagnet 2, causing the electromagnet 2 to generate an attractive force, moving the permanent magnet 3 towards the electromagnet 2, thereby causing the bolt 5 to leave the first hole to complete power-off. It should be noted that a default temperature needs to be set, and a signal will be automatically fed back when the temperature exceeds this temperature.

[0032] Furthermore, the automatically locking charging pile plug further includes a switch 6; the switch 6 is arranged in the circuit of the electromagnet 2. It should be noted that the setting of the switch 6 is an insurance measure to prevent the plug 43 from failing to be removed. Therefore, the switch 6 is arranged in the circuit of the electromagnet 2 and its position is set at a place on the gun body 1 far from the plug 43. In case of a failure or danger, people can also press the switch to unlock and complete the action of pulling out the plug. It should be noted that when the switch 6 is pressed, the circuit of the electromagnet 2 is open, its iron core is not magnetized and is just an ordinary iron core. The permanent magnet 3 also has an attraction to the iron core. And since the iron core is fixed, the permanent magnet 3 moves towards the iron core, so that the bolt 5 moves towards the permanent magnet 3 to complete the unlocking.

[0033] In this embodiment, it is further illustrated how the automatic locking is achieved. By setting the magnetized bolt 5 to cooperate with the electromagnet 2 and the permanent magnet 3, the automatic locking is completed. This structure is simple, low in cost and also convenient for replacement.

[0034] Embodiment 3

[0035] This embodiment provides a structure for fixing the plug on a new energy vehicle. The automatically locking charging pile plug further includes a moving block 7; the moving block 7 is connected to the side of the gun body 1 near the socket end through a slideway. Preferably, at least two groups of the moving block 7 and the slideway structure are provided to facilitate achieving balance. It should be noted that this fixing structure needs to cooperate with the charging position of the new energy vehicle to achieve fixation. After the moving block 7 enters the charging position of the new energy vehicle, it rotates and then gets stuck in position, making the gun body 1 unable to move. When it needs to be removed, first rotate the plug. When the moving block 7 reaches the specified position, it can be pulled out. In this way, after charging is cut off, the plug will not fall to the ground due to unlocking and cause losses.

[0036] Finally, it should also be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or terminal device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or terminal device including the element.

[0037] The above has introduced in detail an automatically locking charging pile plug provided by the present utility model. Specific examples are used in this article to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model; at the same time, for those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present utility model.

Claims

1. An automatically locked charging pile plug, characterized in that: include: Gun body, plug assembly, and electromagnet and permanent magnet; A groove is provided at one end of the plug, and a slideway is provided at one end of the plug where the groove is provided; The electromagnet is fixed to one end of the slideway, and the permanent magnet is arranged in the slideway; The plug assembly is fixedly mounted on the end surface of the gun body provided with the groove; An automatic locking component is arranged between the plug assembly and the permanent magnet.

2. The automatically locked charging pile plug according to claim 1, characterized in that: The groove is an O-shaped groove.

3. The automatically locked charging pile plug according to claim 2, characterized in that: The plug assembly comprises a spring, a protective sleeve and a plug; The protective sleeve is connected to the inner column of the O-shaped groove via a slideway; The plug is fixedly mounted at one end of the protective sleeve; The spring is arranged at the bottom end of the O-shaped groove and at an end of the protective sleeve away from the plug.

4. The automatically locked charging pile plug according to claim 3, characterized in that: The protective cover is provided with a first hole; A second hole is arranged above the slideway and overlaps with the first hole in the charging state.

5. The automatically locked charging pile plug according to claim 4, characterized in that: Also includes latches; The latch is disposed in the second hole; A magnetic pole is arranged at one end of the latch close to the permanent magnet.

6. The automatically locked charging pile plug according to claim 3, characterized in that: Also includes a temperature sensor; The temperature sensor is arranged on the end surface of the inner column.

7. The automatically locked charging pile plug according to claim 1, characterized in that: The automatically locked charging pile plug also includes a switch; The switch is arranged in the circuit of the electromagnet.

8. The automatically locked charging pile plug according to claim 1, characterized in that: The automatically locked charging pile plug also includes a moving block; The moving block is connected to the side surface of the gun body near the socket end through a slideway.

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