Electromagnetic force separating mechanism and electromagnetic force charging gun

Abstract

The invention relates to the technical field of charging gun separating devices, in particular to an electromagnetic force separating mechanism and an electromagnetic force charging gun, and the electromagnetic force separating mechanism comprises a framework which is arranged in a charging gun head, and the output port of the framework is located at the output end of the charging gun head; the electromagnetic coil group is arranged on the outer side of the framework in a sleeving manner; and the permanent magnet ejector rod group is axially arranged on the inner side of the framework and corresponds to the electromagnetic coil group. According to the electromagnetic force separation mechanism, magnetic fields in different directions can be formed by controlling the direction of current introduced into the electromagnetic coil group, and act on the permanent magnet ejector rod group on the inner side of the framework, so that the permanent magnet ejector rod group is ejected out of the output port of the framework, and meanwhile, the charging gun head moves in the opposite direction and realizes a separation state; or the permanent magnet ejector rod group retracts to the inner side of the framework to realize resetting; the electromagnetic force separation mechanism is simple in structure, low in cost, easy to implement and not prone to faults.

Description

Technical Field

[0001] The present application relates to the technical field of charging gun detachment devices, and particularly to an electromagnetic force detachment mechanism and an electromagnetic force charging gun. Background Art

[0002] There are mainly two existing ways to detach the charging gun head. One is direct manual detachment, that is, after the user presses the switch lock at the handle of the charging gun head, the user pulls it out by himself; this way requires the user to apply a relatively large force to pull out the charging gun head, resulting in a poor user experience and easy wear of the charging gun head. In order to improve the detachment efficiency and user experience, most people now adopt another way of detaching with an external mechanical detachment device, that is, through a third-party robotic arm and manipulator structure to simulate the manual detachment method; this way requires a vision recognition system to identify the charging interface of the vehicle, and through a robotic arm with six or more degrees of freedom to simulate the insertion and extraction of the charging gun by hand; the mechanical structure design is complex and requires a complex mechanical control system; and the manipulator itself has a large volume, and it is necessary to consider the mechanical center of gravity, stability, and recognition, resulting in a larger overall volume of the device; at the same time, due to the robotic arm having six or more degrees of freedom, the product cost is high, there are many fault points, additional operating space is required, and it is easy to have a situation of competing for the operation position with the vehicle parking position.

[0003] Therefore, the existing detachment devices for charging gun heads have problems such as overly complex structures, many fault points, and difficulty in implementation. Summary of the Invention

[0004] In view of the above deficiencies of the prior art, the purpose of the present application is to provide an electromagnetic force detachment mechanism and an electromagnetic force charging gun, aiming to solve the problems of overly complex structures, many fault points, and difficulty in implementation existing in the existing detachment devices for charging gun heads.

[0005] The technical solution adopted by the present application to solve the technical problems is as follows: An electromagnetic force detachment mechanism is provided at the output end of the charging gun head. The electromagnetic force detachment mechanism includes:

[0006] A skeleton, the skeleton is arranged inside the charging gun head, and the output port of the skeleton is located at the output end of the charging gun head;

[0007] An electromagnetic coil group, the electromagnetic coil group is sleeved outside the skeleton;

[0008] A permanent magnet ejector rod group, the permanent magnet ejector rod group is axially placed inside the skeleton and is arranged corresponding to the electromagnetic coil group;

[0009] When current is passed through the electromagnetic coil group, a magnetic field is formed. Under the action of the magnetic field, the permanent magnet push rod group is pushed out from the inner side of the frame toward the output port, and drives the charging gun head to move in the opposite direction, thereby completing the separation of the charging gun head.

[0010] When a current in the opposite direction is passed through the electromagnetic coil group, a magnetic field in the opposite direction is formed. Under the action of the magnetic field in the opposite direction, the permanent magnet top rod group moves from the output port toward the inner side of the frame until the permanent magnet top rod group is completely placed on the inner side of the frame.

[0011] Optionally, the electromagnetic coil group includes three or more electromagnetic coils, and the three or more electromagnetic coils are sequentially arranged on the outside of the skeleton along a direction away from the output port, and adjacent electromagnetic coils are independent of each other.

[0012] Optionally, the permanent magnet top rod group includes a plurality of permanent magnet top rods, and the permanent magnet top rods are arranged in a one-to-one correspondence with the electromagnetic coils; adjacent permanent magnet top rods are connected to each other.

[0013] Optionally, a fixing assembly is provided at one end of the skeleton away from the output port, and the fixing assembly includes a fixing piece, a spring and a fixing ball; one end of the spring is fixedly connected to the fixing piece, and the other end of the spring is connected to the fixing ball; when the permanent magnet top rod group moves to the bottom of the fixing ball, the fixing ball contacts and engages with the permanent magnet top rod, thereby stopping the movement of the permanent magnet top rod group.

[0014] Optionally, the fixing member is a driving motor, and when the permanent magnet push rod group moves to below the fixing ball, the driving motor compresses the spring, driving the fixing ball to abut and engage with the permanent magnet push rod, thereby stopping the permanent magnet push rod group from moving.

[0015] Optionally, the permanent magnet top rod assembly is provided with a snap-fitting groove corresponding to the fixing ball.

[0016] Optionally, a limiting member is provided at one end of the skeleton close to the output port, and when the permanent magnet push rod group is pushed out from the output port, the limiting member abuts against the permanent magnet push rod group.

[0017] Optionally, the outer side of the electromagnetic coil assembly is also covered with a shielding layer.

[0018] Optionally, the electromagnetic force disengagement mechanism further includes a controller and a power supply that are connected to each other, wherein the controller is connected to the electromagnetic coil group and controls the direction of current flowing into the electromagnetic coil group.

[0019] On the other hand, an electromagnetic force charging gun is also disclosed, which includes a charging gun head and a plurality of electromagnetic force disengagement mechanisms; the electromagnetic force disengagement mechanisms are arranged at the output end of the charging gun head; the electromagnetic force disengagement mechanisms are the electromagnetic force disengagement mechanisms as described above.

[0020] Compared with the prior art, the present application provides an electromagnetic force disengagement mechanism and an electromagnetic force charging gun. Among them, the electromagnetic force disengagement mechanism includes a skeleton, an electromagnetic coil group and a permanent magnet ejector rod group. The electromagnetic coil group is sleeved outside the skeleton. By controlling the direction of the current flowing into the electromagnetic coil group, different directions of magnetic fields can be formed, which act on the permanent magnet ejector rod group inside the skeleton, so that the permanent magnet ejector rod group is ejected from the output port of the skeleton, causing the charging gun head to move in the opposite direction and achieve the disengaged state, or causing the permanent magnet ejector rod group to retract from the output port of the skeleton to the inside of the skeleton to achieve reset; using the electromagnetic force of the electromagnetic coil group to drive the movement of the permanent magnet ejector rod group to achieve the disengagement of the charging gun head, the structure is simple, the cost is low, it is easy to implement, not prone to failure, can be used again after reset, and the disengagement efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the electromagnetic force disengagement mechanism provided in the present application when the charging plug is connected to the vehicle body charging port;

[0022] Figure 2 is a schematic diagram of the electromagnetic force disengagement mechanism provided in the present application when the charging plug is not in use;

[0023] Figure 3 is Figure 1 an enlarged schematic diagram of A in

[0024] Figure 4 is a side view of the charging plug (including the electromagnetic force disengagement mechanism) provided in the present application;

[0025] Figure 5 is Figure 4 an enlarged schematic diagram of B in

[0026] Figure 6 is Figure 1 an enlarged schematic diagram of another embodiment of A in

[0027] Description of the reference numerals:

[0028] 100. Electromagnetic force detachment mechanism; 200. Charging gun head; 300. Charging gun body; 400. Vehicle body charging port; 110. Electromagnetic coil group; 120. Permanent magnet ejector rod group; 130. Fixing component; 140. Skeleton; 150. Shielding layer; 160. Limiting part; 170. Output port; 210. Connecting protrusion; 220. Dust cover; 310. Locking component; 320. Output end; 111. First electromagnetic coil; 112. Second electromagnetic coil; 113. Third electromagnetic coil; 121. First permanent magnet ejector rod; 122. Second permanent magnet ejector rod; 123. Third permanent magnet ejector rod; 131. Fixing groove; 132. Driving motor; 133. Spring; 134. Fixed ball. Detailed implementation manners

[0029] The embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application.

[0030] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0031] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "plurality" is two or more.

[0032] The terms "parallel", "perpendicular", etc. do not mean that the components are required to be absolutely parallel or perpendicular, but may be slightly inclined. For example, "parallel" only means that its direction is more parallel relative to "perpendicular", and does not mean that the structure must be completely parallel, but may be slightly inclined.

[0033] The terms "horizontal", "vertical", "hanging", etc. do not mean that the components are required to be absolutely horizontal, vertical or hanging, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but may be slightly inclined.

[0034] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0035] With reference to Figure 1 、 Figure 2 and Figure 3 In the first embodiment of the present application, an electromagnetic force detachment mechanism 100 is provided, which is arranged at the output end 320 of the charging gun head 200. The electromagnetic force detachment mechanism 100 includes: a skeleton 140, an electromagnetic coil group 110, and a permanent magnet ejector rod group 120; the skeleton 140 is arranged inside the charging gun head 200, and the output port 170 of the skeleton 140 is located at the output end 320 of the charging gun head 200; the electromagnetic coil group 110 is sleeved outside the skeleton 140; the permanent magnet ejector rod group 120 is axially placed inside the skeleton 140 and is correspondingly arranged with the electromagnetic coil group 110.

[0036] After a current is passed through the electromagnetic coil group 110 to form a magnetic field, the permanent magnet ejector rod group 120 is ejected from the inside of the skeleton 140 towards the output port 170 under the action of the magnetic field, and drives the charging gun head 200 to move in the opposite direction to complete the detachment of the charging gun head 200; after a current in the opposite direction is passed through the electromagnetic coil group 110 to form a magnetic field in the opposite direction, the permanent magnet ejector rod group 120 moves from the output port 170 towards the inside of the skeleton 140 under the action of the magnetic field in the opposite direction until the permanent magnet ejector rod group 120 is completely placed inside the skeleton 140. Specifically, the skeleton 140 can be a groove; the output port 170 of the groove is located at the output end 320 and is connected to the outside.

[0037] When the charging gun head 200 is in close contact with the vehicle body charging port 400 to complete charging and is unlocked, a current can be passed through the electromagnetic coil group 110. Using the magnetic field formed by the energization of the electromagnetic coil group 110, it acts on the permanent magnet ejector rod group 120, causing the permanent magnet ejector rod group 120 to move in a specified direction. Thus, the permanent magnet ejector rod group 120 can be ejected from the inner side of the framework 140 towards the output port 170. At the same time, under the reaction force, the charging gun head 200 moves in the opposite direction, creating a gap between the charging gun head 200 and the vehicle body charging port 400. According to the existing design specifications of the charging gun head 200, this gap is preferably greater than or equal to 4 cm, and more preferably greater than or equal to 4.5 cm. Thereby, the connection between the charging gun head 200 and the vehicle body charging port 400 is disconnected, and the physical separation of the charging gun head 200 from the vehicle body charging port 400 is achieved. Users can easily take away and recycle the charging gun head 200, improving the user experience. Specifically, when ejecting, by controlling the current magnitude, action time, etc., the ejection length of the permanent magnet ejector rod group 120 is set. While ensuring that the ejection length can physically separate the charging gun head 200 from the vehicle body charging port 400, the permanent magnet ejector rod group 120 does not completely eject from the output port 170, and a part of the permanent magnet ejector rod group 120 remains embedded in the inner side of the framework 140.

[0038] At the same time, the length of the electromagnetic coil group 110 is greater than or equal to 80% of the overall length of the permanent magnet ejector rod group 120, and is preferably 1 to 1.5 times the overall length of the permanent magnet ejector rod group 120; at the same time, the ejection length of the permanent magnet ejector rod group 120 is preferably less than 80% of the overall length of the permanent magnet ejector rod group 120.

[0039] And after the charging gun head 200 is ejected to a specific distance to achieve the physical separation of the charging gun head 200 from the vehicle body charging port 400, a current in the opposite direction can be passed through the electromagnetic coil group 110, thereby forming a magnetic field in the opposite direction, acting on the permanent magnet ejector rod group 120, causing the permanent magnet ejector rod group 120 to move from the output port 170 of the framework 140 towards the inner side direction of the framework 140 until the permanent magnet ejector rod group 120 completely retracts into the inner side of the framework 140 and completes the reset, so as to be able to continue to eject a specific length to achieve the separation of the charging gun head 200 from the vehicle body charging port 400. Therefore, after the charging gun head 200 is separated from the vehicle body charging port 400, the permanent magnet ejector rod group 120 immediately returns to its original position, so that when the user retracts the charging gun head 200 again, the permanent magnet ejector rod group 120 has completely retracted into the inner side of the framework 140 and will not collide with external objects. The permanent magnet ejector rod group 120 can maintain the integrity and sensitivity of the device, cope with subsequent use, and extend the service life of the electromagnetic force separation mechanism 100.

[0040] In addition, the combination of the electromagnetic coil group 110 and the permanent magnet ejector rod group 120 is carried out by using electromagnetic force. By controlling parameters such as the magnitude, direction, and frequency of the current flowing into the electromagnetic coil group 110, the magnitude, direction, and action time of the magnetic field can be controlled more precisely, so as to achieve precise control of the movement, accurately control the ejection length of the permanent magnet ejector rod group 120. The structure is simple, the cost is low, and it is easy to implement and not prone to failure. After the permanent magnet ejector rod group 120 is reset, it can be used again; and electric energy can be directly and efficiently converted into mechanical energy, and the energy loss in the intermediate link is relatively small, improving the energy utilization rate; the response speed of the electromagnetic force is very fast, and it can reach a high speed or complete the change of speed and direction in a very short time, improving the sensitivity and response speed of the electromagnetic force detachment mechanism 100; at the same time, the movement of the electromagnetic force can be connected with the control system, thereby improving the degree of automation and facilitating remote control.

[0041] The electromagnetic force detachment mechanism 100 of this embodiment includes a skeleton 140, an electromagnetic coil group 110, and a permanent magnet ejector rod group 120. The electromagnetic coil group 110 is sleeved outside the skeleton 140. By controlling the direction of the current flowing into the electromagnetic coil group 110, magnetic fields in different directions can be formed, acting on the permanent magnet ejector rod group 120 inside the skeleton 140, so that the permanent magnet ejector rod group 120 is ejected from the output port 170 of the skeleton 140, causing the charging gun head 200 to move in the opposite direction and achieve the detachment state, or causing the permanent magnet ejector rod group 120 to retract from the output port 170 of the skeleton 140 to the inside of the skeleton 140 to achieve reset; using the electromagnetic force of the electromagnetic coil group 110 to drive the movement of the permanent magnet ejector rod group 120 to achieve the detachment of the charging gun head 200, the structure is simple, the cost is low, and it is easy to implement and not prone to failure. After reset, it can be used again, and the detachment efficiency is high.

[0042] In some embodiments, the electromagnetic coil group 110 includes three or more electromagnetic coils. The three or more electromagnetic coils are sequentially arranged outside the skeleton 140 along the direction away from the output port 170, and adjacent electromagnetic coils are all independent of each other.

[0043] Preferably, the axes of three or more of the electromagnetic coils are on the same horizontal line, that is, at the same distance from the permanent magnet ejector rod group 120; moreover, the magnetic directions of three or more permanent magnet ejector rods are the same, such as all N on the left and S on the right, or all S on the left and N on the right; that is, the adjacent permanent magnet ejector rods attract each other; the arrangement of three or more electromagnetic coils can generate a magnetic field that is vectorially superimposed on each other, and the superimposition effect is significant, so that a stronger magnetic field can be formed with a smaller current, enabling the permanent magnet ejector rod group 120 to eject a farther distance. Specifically, under the combined action of three or more of the electromagnetic coils, a current can be passed through at a relatively low voltage (a voltage in the order of 10V, such as 12V), thereby enabling the permanent magnet ejector rod group 120 to eject a distance greater than or equal to 4.5 cm. If there is only one or two electromagnetic coils, a higher voltage (such as 220V or 110V) is required to pass a current in order to make the ejection length of the permanent magnet ejector rod group 120 greater than 4 cm, and the risk of current control under high voltage is relatively high.

[0044] When the electromagnetic coil group 110 includes three electromagnetic coils, it may specifically include a first electromagnetic coil 111, a second electromagnetic coil 112, and a third electromagnetic coil 113, which are sequentially arranged on the outer side of the skeleton 140 in a direction away from the output port 170.

[0045] Adjacent electromagnetic coils are all independent of each other. The current parameters passed through the independent electromagnetic coils can be adjusted, so as to change the magnitude of the electromagnetic force applied to the permanent magnet ejector rod, prevent the permanent magnet ejector rod from becoming weak during the movement process, resulting in a decrease in the response speed, and can also more precisely adjust the movement state of the permanent magnet ejector rod, improving the control accuracy. At the same time, when any one of the electromagnetic coils is damaged, the current parameters passed through the undamaged electromagnetic coils can be adjusted, so as to ensure that the permanent magnet ejector rod can still move according to the original movement state and the movement state is stable.

[0046] In some embodiments, the permanent magnet ejector rod group 120 includes three or more permanent magnet ejector rods, and the three or more permanent magnet ejector rods are sequentially placed inside the skeleton 140 in a direction away from the output port 170; the adjacent permanent magnet ejector rods are connected to each other. That is, the permanent magnet ejector rod group 120 can be composed of multiple connected permanent magnet ejector rods or integrally formed by multiple permanent magnet ejector rods, which can ensure the uniformity of each part of the permanent magnet ejector rod group 120, so that the electromagnetic forces applied by multiple electromagnetic coils to each part of the magnet ejector rod group are the same, thereby ensuring the stable movement process, high sensitivity and response speed of the permanent magnet ejector rod group 120. Preferably, the three or more permanent magnet ejector rods have the same size and dimensions, which is convenient for the uniform action of the electromagnetic force on the permanent magnet ejector rod. At the same time, the ejection length of the permanent magnet ejector rod is less than or equal to 80% of the length of a single permanent magnet ejector rod.

[0047] When the permanent magnet ejector rod group 120 includes three permanent magnet ejector rods, specifically, it may include a first permanent magnet ejector rod 121, a second permanent magnet ejector rod 122, and a third permanent magnet ejector rod 123. The three are sequentially placed inside the framework 140 in a direction away from the output port 170, and they are connected to each other. At the same time, the first permanent magnet ejector rod 121 is placed corresponding to the first electromagnetic coil 111, the second permanent magnet ejector rod 122 is placed corresponding to the second electromagnetic coil 112, and the third permanent magnet ejector rod 123 is placed corresponding to the third electromagnetic coil 113.

[0048] With reference to Figure 4 and Figure 5 , in some embodiments, a fixing component 130 is provided at one end of the framework 140 away from the output port 170. The fixing component 130 includes a fixing member, a spring 133, and a fixing ball 134. One end of the spring 133 is fixedly connected to the fixing member, and the other end of the spring 133 is connected to the fixing ball 134. When the permanent magnet ejector rod group 120 moves below the fixing ball 134, the fixing ball 134 comes into contact and engages with the permanent magnet ejector rod, thereby stopping the movement of the permanent magnet ejector rod group 120.

[0049] The function of the spring 133 is to connect the fixing ball 134 and the fixing member. The fixing member can be a screw, a bolt, etc., and is used to fix the spring 133 on the framework 140. Specifically, before the permanent magnet ejector rod group 120 moves below the fixing ball 134, the fixing ball 134 is connected to the fixing member through the spring 133. At this time, the spring 133 is only affected by the weight of the fixing ball 134 and is in a stretched state. When the permanent magnet ejector rod group 120 moves below the fixing ball 134, the surface of the permanent magnet ejector rod comes into contact with the fixing ball 134, and as the permanent magnet ejector rod group 120 continues to move, the frictional force drives the fixing ball 134 to move together, increasing the stretching length of the spring 133, increasing the elastic restoring force of the spring 133 and the pulling force of the spring 133 on the fixing ball 134, thereby hindering the continued movement of the permanent magnet ejector rod group 120 until the permanent magnet ejector rod group 120 stops moving.

[0050] The fixing member is provided above one end of the framework 140 away from the output port 170. That is, when the permanent magnet ejector rod group 120 retracts, the output port 170 is located on one side of the permanent magnet ejector rod group 120, the fixing component 130 is located above the other side of the permanent magnet ejector rod group 120, and the end of the permanent magnet ejector rod group 120 away from the output port 170 is clamped and fixed through the fixing component 130. When the permanent magnet ejector rod group 120 includes several permanent magnet ejector rods, the permanent magnet ejector rod farthest from the output port 170 comes into contact and engages with the fixing ball 134 of the fixing component 130, and the other permanent magnet ejector rods are also fixed in position due to mutual magnetic attraction.

[0051] In this process, by setting the weight of the fixed ball 134, the surface roughness of the permanent magnet ejector rod group 120, and the elastic coefficient of the spring 133, etc., the permanent magnet ejector rod group 120 can be controlled to retract to a specified position or retract to its original position before ejection. This facilitates the subsequent precise ejection of a specific length by the permanent magnet ejector rod group 120 under the action of the same force. After the permanent magnet ejector rod group 120 ejects, due to the elastic restoring force of the spring 133, the spring 133 will drive the fixed ball 134 to return to its original position. Then, when the permanent magnet ejector rod group 120 moves below the fixed ball 134 subsequently, it will again hinder the movement of the permanent magnet ejector rod group 120 and make it return to its original position.

[0052] The setting of the fixing component 130 makes the retraction position of the permanent magnet ejector rod group 120 fixed, which can ensure the stable movement state of the permanent magnet ejector rod group 120 and can be reproduced multiple times, improving the accuracy of the length distance of the permanent magnet ejector rod group 120 ejecting out of the output port 170. And the fixing component 130 can also clamp and fix the permanent magnet ejector rod group 120 at a specific position, preventing the permanent magnet ejector rod from falling out of the skeleton 140 when the user uses it, and improving the structural stability of the electromagnetic force detachment mechanism 100.

[0053] Furthermore, the fixing member can be selected as the driving motor 132, preferably a micro motor, which can be placed in a smaller space. When the permanent magnet ejector rod group 120 moves below the fixed ball 134, the driving motor 132 compresses the spring 133, driving the fixed ball 134 to abut and engage with the permanent magnet ejector rod, so that the permanent magnet ejector rod group 120 stops moving. That is, when the permanent magnet ejector rod group 120 moves below the fixed ball 134, the driving motor 132 pushes the spring 133 to drive the fixed ball 134 to contact the permanent magnet ejector rod group 120 and apply pressure to the permanent magnet ejector rod group 120, so that the permanent magnet ejector rod group 120 stops moving below the fixed ball 134. After the permanent magnet ejector rod group 120 stops moving, the driving motor 132 moves in the reverse direction, and can combine with the elastic restoring force of the spring 133 to drive the fixed ball 134 to quickly return to its original position.

[0054] Selecting the driving motor 132 as the fixing member can quickly stop the permanent magnet ejector rod group 120 below the fixed ball 134 with high efficiency, and the stopping position of the permanent magnet ejector rod group 120 is determined. By adjusting the position of the fixing component 130, the starting position and retraction position of the permanent magnet ejector rod group 120 can be set, improving the control accuracy of the movement state of the permanent magnet ejector rod group 120. At the same time, the driving motor 132 can be connected and used through an external controller, and can be remotely operated, which can improve the automation degree of the electromagnetic force detachment mechanism 100.

[0055] The charging plug may be provided with a fixing groove 131, and the fixing member is fixed at the fixing groove 131; or when the fixing member is a driving motor 132, the driving motor 132 moves within the fixing groove 131, thereby driving the movement of the fixing ball 134. The fixing ball 134 can be made of any material, preferably an alloy ball, which has a certain hardness and can resist wear; specifically, the fixing ball 134 can be a copper ball.

[0056] Further, the permanent magnet ejector rod group 120 is provided with engaging grooves corresponding to the fixing balls 134. The engaging grooves can match with the fixing balls 134, thereby improving the connection stability between the fixing balls 134 and the permanent magnet ejector rod group 120, facilitating the fixing balls 134 to act on specific positions of the permanent magnet ejector rod group 120, and thus stopping the permanent magnet ejector rod group 120.

[0057] Combined with reference Figure 6 In some embodiments, a limiting member 160 is provided at one end of the framework 140 close to the output port 170. When the permanent magnet ejector rod group 120 is ejected from the output port 170, the limiting member 160 abuts against the permanent magnet ejector rod group 120. By the abutment of the limiting member 160 against the permanent magnet ejector rod group 120, it is prevented that the permanent magnet ejector rod group 120 completely falls out when being ejected from the output port 170.

[0058] Further, the permanent magnet ejector rod group 120 is provided with engaging protrusions, and the engaging protrusions can engage with the limiting member 160, thereby limiting the ejection length of the permanent magnet ejector rod group 120 and preventing the permanent magnet ejector rod group 120 from completely falling out when being ejected from the output port 170. When the permanent magnet ejector rod group 120 includes several permanent magnet ejector rods, the engaging protrusions are provided on the first permanent magnet ejector rod 121 closest to the output port 170, and can engage with the limiting member 160 through the engaging protrusions, thereby preventing the first permanent magnet ejector rod 121 from completely falling out, and the adjacent permanent magnet ejector rods are magnetically attracted to each other. When the first permanent magnet ejector rod 121 is engaged and fixed, the positions of the other permanent magnet ejector rods are also simultaneously limited.

[0059] In some embodiments, the outer side of the electromagnetic coil group 110 is further coated with a shielding layer 150. The shielding layer 150 can reduce or shield the influence of the external magnetic field on the electromagnetic coil group 110, ensure that the magnetic field of the electromagnetic coil group 110 can fully act on the permanent magnet ejector rod group 120, and ensure the transmission efficiency.

[0060] In some embodiments, the electromagnetic force release mechanism 100 further includes a controller and a power source connected to each other. The controller is connected to the electromagnetic coil group 110 and controls the direction of the current flowing into the electromagnetic coil group 110.

[0061] Specifically, when the charging gun head 200 is unlocked after charging is completed with the vehicle body charging port 400, the controller can receive the unlocking signal, thereby passing a current through the electromagnetic coil group 110 to push out the permanent magnet ejector rod group 120, causing the charging gun head 200 to disengage from the vehicle body charging port 400. After the disengagement is completed, the controller controls the passage of a reverse current through the electromagnetic coil group 110 to retract the permanent magnet ejector rod group 120 to its original position, realizing the automatic control and management of the electromagnetic force disengagement mechanism 100. In addition, the controller can also be connected to the drive motor 132 to control the fixing assembly 130 to fix the permanent magnet ejector rod group 120 to a specific position.

[0062] Combined with reference Figure 1 and Figure 2 , in the second embodiment of the present application, an electromagnetic force charging gun is provided, including a charging gun head 200 and a plurality of electromagnetic force disengagement mechanisms 100; the electromagnetic force disengagement mechanism 100 is disposed at the output end 320 of the charging gun head 200; the electromagnetic force disengagement mechanism 100 is the electromagnetic force disengagement mechanism 100 as described in the first embodiment and any one of its implementation manners.

[0063] The electromagnetic force charging gun of this embodiment can be connected to the vehicle body charging port 400 through the charging gun head 200 to charge the vehicle body. After charging is completed, the electromagnetic force disengagement mechanism 100 at the output end 320 can use electromagnetic force to disengage the charging gun head 200 from the vehicle body charging port 400, enabling the user to easily use the charging gun head 200 to complete charging and disengagement, improving the user experience. Moreover, the electromagnetic force disengagement mechanism 100 has a simple structure, low cost, is easy to implement, is not prone to failure, and extends the service life of the electromagnetic force charging gun.

[0064] In some implementation manners, a connection protrusion 210 is provided at the output end 320 of the charging gun head 200, and the charging operation is carried out by tightly connecting with the vehicle body charging port 400 through the connection protrusion 210. There can be several electromagnetic force disengagement mechanisms 100, which are disposed at the output end 320 of the charging gun head 200 and are arranged around the connection protrusion 210. After charging is completed, the permanent magnet ejector rod groups 120 of several electromagnetic force disengagement mechanisms 100 perform the ejection operation synchronously, thereby disengaging the charging gun head 200 from the vehicle body charging port 400. The number of electromagnetic force disengagement mechanisms 100 can be set according to actual needs. It can be three, and the central axis included angle between adjacent electromagnetic force disengagement mechanisms 100 is 120°; it can also be four, and the central axis included angle between adjacent electromagnetic force disengagement mechanisms 100 is 90°, and so on. Specifically, preferably, there are four electromagnetic force disengagement mechanisms 100, all of which are disposed at the output end 320 of the charging gun head 200 and are arranged around the connection protrusion 210, and the central axis included angle between adjacent electromagnetic force disengagement mechanisms 100 is 90°.

[0065] A number of interface protrusions corresponding to the vehicle body charging port 400 may also be provided on the connection protrusion 210, so as to increase the contact friction force with the vehicle body charging port 400, etc., and achieve a stable connection with the vehicle body charging port 400.

[0066] Furthermore, the electromagnetic force charging gun further includes a charging gun body 300, the charging gun head 200 is arranged on the charging gun body 300, and a locking member 310 extending to one side of the connection protrusion 210 is arranged on the charging gun body 300. A locking groove corresponding to the locking member 310 is arranged on the vehicle body charging port 400; when the charging gun head 200 is in close fit with the vehicle body charging port 400, the locking member 310 is snapped into the locking groove, forming a locked state of the charging gun head 200 and the vehicle body charging port 400, which can ensure that the charging gun head 200 and the vehicle body charging port 400 are stably connected during the charging process. When the charging is completed, the locking member 310 can be disengaged from the locking groove, so as to reach the unlocked state, and the charging gun head 200 and the vehicle body charging port 400 are disengaged through the electromagnetic force disengagement mechanism 100 in the unlocked state.

[0067] Even further, the locking member 310 is provided with a collarbone protrusion that can be snapped into the locking groove, a movable motor and a spring 133. The movable motor is connected to the locking protrusion through the spring 133, and the movable motor is connected to the controller; at the same time, a sensor is arranged at the vehicle body charging port 400 or the charging gun head 200. After the controller receives the signal that the vehicle body charging port 400 and the charging gun head 200 are in close fit, it drives the movable motor to push the spring 133 to drive the locking protrusion to extend out until it is snap-fitted and fixed with the locking groove, realizing the locked state; when the charging is completed, the controller receives the signal of charging completion, then reversely drives the movable motor to pull the spring 133 to drive the locking protrusion to disengage from the locking groove, realizing the unlocked state; and drives all the electromagnetic force disengagement mechanisms 100 to operate simultaneously, that is, a specific current is passed through all the electromagnetic coil groups 110, so that all the permanent magnet ejector rod groups 120 are ejected simultaneously, realizing the disengagement of the charging gun head 200 and the vehicle body charging port 400.

[0068] After the charging gun head 200 is disengaged from the vehicle body charging port 400 and the charging gun head 200 is not in use, a dust cover 220 may also be sleeved on the charging gun head 200. Specifically, the dust cover 220 is sleeved on the outside of the connection protrusion 210 to prevent impurities, dust, moisture, etc. from sticking to the connection protrusion 210 and the charging gun head 200, affecting their subsequent use.

[0069] In summary, an electromagnetic force detachment mechanism and an electromagnetic force charging gun are provided in the present application. Among them, the electromagnetic force detachment mechanism includes a skeleton, an electromagnetic coil group, and a permanent magnet ejector rod group. The electromagnetic coil group is sleeved outside the skeleton. By controlling the direction of the current passing through the electromagnetic coil group, electromagnetic forces in different directions can be formed, acting on the permanent magnet ejector rod group inside the skeleton, so that the permanent magnet ejector rod group is ejected from the output port of the skeleton, causing the charging gun head to move in the opposite direction and achieve the detachment state, or causing the permanent magnet ejector rod group to retract from the output port of the skeleton to the inside of the skeleton to achieve reset; using the electromagnetic force of the electromagnetic coil group to drive the movement of the permanent magnet ejector rod group to achieve the detachment of the charging gun head, the structure is simple, the cost is low, it is easy to implement, not prone to failure, can be used again after reset, and has a high detachment efficiency.

[0070] Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing examples, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing examples, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the examples of the present application.

Claims

1. An electromagnetic force disengaging mechanism, characterized in that, Set at the output end of the charging gun head, the electromagnetic force disengagement mechanism includes: A frame, wherein the frame is disposed in the charging gun head, and an output port of the frame is located at an output end of the charging gun head; An electromagnetic coil group, wherein the electromagnetic coil group is sleeved on the outside of the frame; A permanent magnet mandrel group, which is axially placed on the inner side of the frame and is arranged corresponding to the electromagnetic coil group; When current is passed through the electromagnetic coil group, a magnetic field is formed. Under the action of the magnetic field, the permanent magnet push rod group is pushed out from the inner side of the frame toward the output port, and drives the charging gun head to move in the opposite direction, thereby completing the separation of the charging gun head. When a current in the opposite direction is passed through the electromagnetic coil group, a magnetic field in the opposite direction is formed. Under the action of the magnetic field in the opposite direction, the permanent magnet top rod group moves from the output port toward the inner side of the frame until the permanent magnet top rod group is completely placed on the inner side of the frame.

2. The electromagnetic force detachment mechanism according to claim 1, characterized in that, The electromagnetic coil group includes three or more electromagnetic coils, and the three or more electromagnetic coils are sequentially arranged on the outside of the frame in a direction away from the output port, and adjacent electromagnetic coils are independent of each other.

3. The electromagnetic force detachment mechanism according to claim 2, characterized in that, The permanent magnet top rod group includes a plurality of permanent magnet top rods, and the permanent magnet top rods are arranged in one-to-one correspondence with the electromagnetic coils; adjacent permanent magnet top rods are connected to each other.

4. The electromagnetic force disengaging mechanism according to claim 1, wherein A fixing assembly is provided at one end of the skeleton away from the output port, and the fixing assembly includes a fixing piece, a spring and a fixing ball; one end of the spring is fixedly connected to the fixing piece, and the other end of the spring is connected to the fixing ball; when the permanent magnet top rod group moves to the bottom of the fixing ball, the fixing ball contacts and engages with the permanent magnet top rod, thereby stopping the movement of the permanent magnet top rod group.

5. The electromagnetic force disengaging mechanism according to claim 4, wherein The fixing member is a driving motor. When the permanent magnet push rod group moves to the bottom of the fixing ball, the driving motor compresses the spring, driving the fixing ball to abut and engage with the permanent magnet push rod, thereby stopping the permanent magnet push rod group from moving.

6. The electromagnetic force disengaging mechanism according to claim 4, wherein The permanent magnet top rod group is provided with a clamping groove corresponding to the fixing ball.

7. The electromagnetic force disengaging mechanism according to claim 1, wherein A limiting member is arranged at one end of the frame close to the output port, and when the permanent magnet push rod group is pushed out from the output port, the limiting member abuts against the permanent magnet push rod group.

8. The electromagnetic force disengaging mechanism according to claim 1, characterized in that, The outer side of the electromagnetic coil assembly is also covered with a shielding layer.

9. The electromagnetic force disengaging mechanism according to claim 1, wherein The electromagnetic force disengagement mechanism further includes a controller and a power supply which are connected to each other. The controller is connected to the electromagnetic coil group and controls the direction of the current flowing into the electromagnetic coil group.

10. An electromagnetic force charging gun, characterized in that It comprises a charging gun head and a plurality of electromagnetic force disengagement mechanisms; the electromagnetic force disengagement mechanism is arranged at the output end of the charging gun head; the electromagnetic force disengagement mechanism is the electromagnetic force disengagement mechanism according to any one of claims 1 to 9.

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