Pressure-sensitive charging pile for new energy automobile

Abstract

The invention is applicable to the technical field of new energy automobile charging piles, and provides a pressure-sensitive charging pile for a new energy automobile, the pressure-sensitive charging pile comprises a charging pile body, the charging pile body is connected with a charging part, the charging part comprises a charging head, and the charging head is connected with a base through a charging wire; the charging device further comprises a protection module, the protection module comprises a mounting box, a winding roller is rotationally mounted in the mounting box, a winding rope is wound on the winding roller, the free end of the winding rope is connected with the charging head through a connecting sleeve, mounting boxes are arranged at the two ends of the winding roller, and a coil spring is mounted in each mounting box. Connecting rods are installed at the two ends of the winding roller correspondingly, and the free ends of the coil springs are connected with the connecting rods. And the control unit is arranged in the center of one coil spring. The device can cope with various possible damage conditions of the charging head in the charging process, effectively protects the charging part, reduces the damage risk of the charging part, and prolongs the service life of the device.

Description

Technical Field

[0001] The present invention belongs to the technical field of new energy vehicle charging piles, and in particular relates to a pressure-sensitive charging pile for new energy vehicles. Background Art

[0002] Charging piles are infrastructure that provide electrical energy for electric vehicles (EVs). They are usually installed in parking spaces and charge electric vehicles through charging plugs.

[0003] In the prior art, the charging plug is plugged into a designated position of the charging pile when in use. When the user wants to charge the electric vehicle, he only needs to unplug the charging plug and insert it into the charging port of the charging plug to charge.

[0004] However, since such charging piles lack protective equipment for the charging plug, if the user does not put the charging plug back to the designated position of the charging pile after use, the charging plug may fall off, thereby causing damage to the charging plug. In addition, if the user forgets to unplug the charging plug, the charging plug may be pulled by the vehicle and break or suffer serious damage. Summary of the invention

[0005] The purpose of the embodiments of the present invention is to provide a pressure-sensitive charging pile for new energy vehicles, aiming to solve the problems raised in the above-mentioned background technology.

[0006] The embodiment of the present invention is implemented as follows: a pressure-sensitive charging pile for a new energy vehicle includes a charging pile body, the charging pile body is connected to a charging unit, the charging unit includes a charging head, and the charging head is connected to a base through a charging line; and further includes: A protection module, the protection module comprises an installation box installed at the bottom of the charging pile body, a winding roller is rotatably installed in the installation box, and a driving unit for driving the winding roller to rotate is also provided on the installation box, a winding rope is wound on the winding roller, the free end of the winding rope extends to the outside of the installation box, and the free end of the winding rope is connected to a connecting sleeve, and the connecting sleeve is installed at the bottom of the charging head, and installation boxes are provided at both ends of the winding roller, and a coil spring is installed in each of the installation boxes, and connecting rods are installed at both ends of the winding roller, and the free ends of the two coil springs are respectively connected to the two connecting rods; The control unit is arranged at the center of a coil spring, and when the coil spring is tightened and a preset pressure is applied to the control unit, the control unit controls the drive unit to start; when the coil spring is continuously relaxed and the pressure on the control unit is released, the control unit controls the drive unit to stop working.

[0007] According to a further technical solution, a base is provided at the bottom of the charging pile body.

[0008] According to a further technical solution, the protection module further comprises a support frame installed outside the installation box, the winding rope passes through the support frame, and a limiting ring matching the support frame is also provided on the side of the winding rope close to the connecting sleeve.

[0009] According to a further technical solution, the driving unit comprises a driving motor mounted on a mounting box, an output end of the driving motor is connected to a driving shaft, and the winding roller is sleeved on the driving shaft; When the coil spring is tightened and applies a preset pressure to the control unit, the control unit controls the drive motor to start; When the coil spring continues to relax and releases the pressure on the control unit, the control unit will control the drive motor to stop working.

[0010] According to a further technical solution, the control unit includes a mounting ring coaxially arranged with the drive shaft, and a plurality of pressure blocks are installed in a ring array on the mounting ring, one end of each of the pressure blocks is installed in a mounting hole opened in the mounting ring, and each of the pressure blocks is installed in the mounting hole along the radial sliding direction of the mounting ring, one end of each of the pressure blocks located inside the mounting hole is connected to a side of the mounting hole close to the center of the mounting ring through a second return spring, and a push-type controller is also provided on the side of each of the mounting holes close to the center of the mounting ring.

[0011] According to a further technical solution, a limiting unit for limiting the position of the reeling rope is further provided on the outside of the installation box, and the limiting unit allows the reeling rope to be unwound only during normal operation.

[0012] According to a further technical solution, the limit unit comprises two mounting frames symmetrically mounted on both sides of the winding rope, a limit stopper is rotatably mounted on the mounting frame, and a plurality of limit platforms matching the limit stopper are arranged on the winding rope, one end of the limit stopper away from the winding rope is connected to the mounting frame through a plurality of first return springs, and an electromagnet is also installed on the mounting frame; The charging head is also provided with a sensor controller for controlling the start and stop of the electromagnet. When the sensor controller detects that the charging head is inserted into the charging port of the electric vehicle or the installation position on the charging pile body, the electromagnet will be powered off; when the sensor controller detects that the charging head is pulled out from the charging port of the electric vehicle or the installation position on the charging pile body, the electromagnet will be powered on; The electromagnet is also controlled by a push-type controller. When the push-type controller is pressed to generate a signal and the electromagnet is still in a power-off state, the signal generated by the push-type controller will control the electromagnet to be energized.

[0013] A pressure-sensitive charging pile for new energy vehicles provided by an embodiment of the present invention, in the initial state, the charging head is plugged into a designated position on the charging pile body, and the reel rope is reeled onto the reel roller. When in use, the operator removes the charging head from the charging pile body and plugs it into the charging port of the electric vehicle for charging. In this process, the charging head will synchronously drive the connecting sleeve to move, thereby pulling the reel rope through the connecting sleeve. In the process of pulling the reel rope for unwinding, the reel roller rotates, and the reel roller can pull the reel spring through the connecting rod, so that the reel spring is tightened by force and provides a reeling force. Due to the effect of the reeling force, a certain amount of force is required to pull the reel rope. At this time, the user will hold the charging head tightly, which can prevent the charging head from falling due to the operator's unstable grip. At the same time, through the effect of the reeling force, the reel rope after use can be automatically reeled back onto the reel roller. At this time, the position of the charging head will also be limited within a certain range. Even if the plugging is unstable or falls off, the charging head will not fall to the ground, which can effectively prevent the damage caused by the charging head falling. In addition, during normal use, the tightening degree of the coil spring will not cause the control unit to work. When the user forcibly drags the charging head and causes the winding rope to be overstretched, the drive unit will start and drive the winding roller to rotate until the force applied to the control unit when the coil spring is tightened reaches the preset value, thereby winding the winding rope onto the winding roller, and the charging head will be pulled back. And because the force of the winding rope is directly applied to the charging head, it will not cause damage to the connection between the charging head and the charging cable, and the connection between the charging cable and the charging pile body. The device can cope with various possible damages to the charging head during the charging process, effectively protect the charging part, reduce the risk of damage to the charging part, and thus extend the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of the structure of a pressure-sensitive charging pile for new energy vehicles provided by an embodiment of the present invention; Figure 2 A protection module in a pressure-sensitive charging pile for new energy vehicles provided by an embodiment of the present invention Schematic diagram of the structure; Figure 3 for Figure 2 A in the enlarged view; Figure 4 A schematic diagram of the internal structure of an installation box in a pressure-sensitive charging pile for a new energy vehicle provided by an embodiment of the present invention; Figure 5 A schematic diagram of the structure of the coil spring and the winding roller in a pressure-sensitive charging pile for new energy vehicles provided by an embodiment of the present invention; Figure 6 A schematic diagram of the internal structure of a mounting ring in a pressure-sensitive charging pile for a new energy vehicle provided in an embodiment of the present invention.

[0015] In the accompanying drawings: the charging pile body 1; the base 11; the charging part 12; the charging line 121; the charging head 122; the protection module 2; the installation box 21; the driving motor 22; the driving shaft 23; the winding roller 24; the connecting rod 241; the winding rope 25; the limit platform 251; the connecting sleeve 252; the limit ring 253; the installation box 26; the coil spring 27; the support frame 28; the limit unit 3; the installation frame 31; the limit block 32; the first return spring 33; the electromagnet 34; the control unit 4; the installation ring 41; the installation hole 411; the pressure block 42; the second return spring 43; the push-type controller 44. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0017] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0018] like Figure 1-Figure 5 As shown, a pressure-sensitive charging pile for new energy vehicles provided by an embodiment of the present invention includes a charging pile body 1, the charging pile body 1 is connected to a charging unit 12, the charging unit 12 includes a charging head 122, and the charging head 122 is connected to a base 11 through a charging line 121; and further includes: A protection module 2, the protection module 2 comprises an installation box 21 installed at the bottom of the charging pile body 1, a winding roller 24 is rotatably installed in the installation box 21, and a driving unit for driving the winding roller 24 to rotate is also provided on the installation box 21, a winding rope 25 is wound on the winding roller 24, the free end of the winding rope 25 extends to the outside of the installation box 21, and the free end of the winding rope 25 is connected to a connecting sleeve 252, and the connecting sleeve 252 is installed at the bottom of the charging head 122, and installation boxes 26 are provided at both ends of the winding roller 24, and a coil spring 27 is installed in each of the installation boxes 26, and connecting rods 241 are installed at both ends of the winding roller 24, and the free ends of the two coil springs 27 are respectively connected to the two connecting rods 241; The control unit 4 is arranged at the center of a coil spring 27, and when the coil spring 27 is tightened and a preset pressure is applied to the control unit 4, the control unit 4 controls the drive unit to start; when the coil spring 27 is continuously relaxed and the pressure on the control unit 4 is released, the control unit 4 controls the drive unit to stop working.

[0019] In the embodiment of the present invention, the two installation boxes 26 are respectively installed at the two ends of the inside of the installation box 21, and do not contact the end of the winding roller 24, and do not rotate synchronously with the winding roller 24. In the initial state, the charging head 122 is plugged into the designated position on the charging pile body 1, and the winding rope 25 is wound on the winding roller 24. When in use, the operator removes the charging head 122 from the charging pile body 1 and plugs it into the charging port of the electric vehicle for charging. In this process, the charging head 122 will synchronously drive the connecting sleeve 252 to move, thereby pulling the winding rope 25 through the connecting sleeve 252. In the process of pulling the winding rope 25 for unwinding, the winding roller 24 rotates, and the winding roller 24 can pull the winding spring 27 through the connecting rod 241, so that the winding spring 27 is tightened and provides a winding force. Due to the effect of the winding force, a certain amount of force is required to pull the winding rope 25. At this time, the user will hold the charging head 122 tightly, which can prevent the charging head 122 from falling due to the operator's unstable grip. At the same time, through the effect of the winding force, the winding rope 25 after use can be automatically wound back onto the reel 24. At this time, the position of the charging head 122 will also be limited within a certain range. Even if the plug is unstable or falls off, the charging head 122 will not fall to the ground, which can effectively prevent the damage caused by the charging head 122 falling. In addition, during normal use, the tightening degree of the coil spring 27 will not cause the control unit 4 to work. When the user forcibly drags the charging head 122 and causes the winding rope 25 to be overstretched, until the force acting on the control unit 4 when the coil spring 27 is tightened reaches a preset value, the drive unit will start and drive the reel 24 to rotate, thereby rewinding the winding rope 25 onto the reel 24, and the charging head 122 will be pulled back. Furthermore, since the force of the reel rope 25 is directly applied to the charging head 122 , no damage is caused to the connection between the charging head 122 and the charging line 121 , and the connection between the charging line 121 and the charging pile body 1 .

[0020] like Figure 1 As shown, as a preferred embodiment of the present invention, a base 11 is provided at the bottom of the charging pile body 1, and the charging pile body 1 can be installed at a designated position through the base 11 and the charging pile body 1 can be kept stable.

[0021] like Figure 1 and 2 As shown, as a preferred embodiment of the present invention, the protection module 2 also includes a support frame 28 installed on the outside of the installation box 21, the winding rope 25 passes through the support frame 28, and a limiting ring 253 matching the support frame 28 is also provided on the side of the winding rope 25 close to the connecting sleeve 252.

[0022] In the embodiment of the present invention, during use, when the charging head 122 is plugged into the designated position of the charging pile body 1, a section of the reeling rope 25 will extend out of the installation box 21. The support frame 28 provides support and limit, so that the exposed section of the reeling rope 25 will not swing at will. In addition, when the reeling rope 25 is reeled, the limit ring 253 will abut against the support frame 28, which can prevent the reeling rope 25 from being over-reeled as a whole, ensuring that the normal use of the charging unit 12 will not be affected by the protection module 2.

[0023] like Figure 4 and Figure 5 As shown, as a preferred embodiment of the present invention, the driving unit includes a driving motor 22 installed on a mounting box 21, the output end of the driving motor 22 is connected to a driving shaft 23, and the winding roller 24 is sleeved on the driving shaft 23; When the coil spring 27 is tightened and applies a preset pressure to the control unit 4, the control unit 4 controls the drive motor 22 to start; When the coil spring 27 is continuously relaxed and releases the pressure on the control unit 4 , the control unit 4 controls the driving motor 22 to stop working.

[0024] In the embodiment of the present invention, when the control unit 4 controls the drive motor 22 to start, the drive motor 22 will drive the drive shaft 23 to rotate, thereby driving the winding roller 24 to rotate, so as to reel the winding rope 25. As the winding roller 24 rotates and continuously reels the winding rope 25, the tension on the winding spring 27 will be continuously released, so that the winding spring 27 is in a relaxed state. When the pressure applied by the winding spring 27 to the control unit 4 is less than a preset value, the control unit 4 will stop working and no longer control the drive motor 22 to start. At this time, the winding of the winding rope 25 is completed, and the winding roller 24 will also stop rotating.

[0025] In addition, the preset value of the pressure can be specifically set according to the unwinding length of the reel rope 25 and the preload force of the coil spring 27. It is only necessary to ensure that when the charging head 122 is stretched to a certain length, the displacement of the coil spring 27 caused by the stretching of the internal contraction can control the control unit 4 to start.

[0026] like Figure 5 and 6As shown, as a preferred embodiment of the present invention, the control unit 4 includes a mounting ring 41 coaxially arranged with the drive shaft 23, and a plurality of pressure blocks 42 are installed in a ring on the mounting ring 41, one end of each of the pressure blocks 42 is installed in a mounting hole 411 opened in the mounting ring 41, and each of the pressure blocks 42 is installed in the mounting hole 411 along the radial sliding direction of the mounting ring 41, and one end of each of the pressure blocks 42 located inside the mounting hole 411 is connected to the side of the mounting hole 411 close to the center of the mounting ring 41 through a second return spring 43, and a push-type controller 44 is also provided on the side of each of the mounting holes 411 close to the center of the mounting ring 41.

[0027] In the embodiment of the present invention, in the initial state, each pressing block 42 is only acted upon by the elastic force of the second return spring 43, at which point one end of the pressing block 42 will extend out of the mounting ring 41, and the pressing block 42 will not contact the push-type controller 44. During use, the coil spring 27 will be continuously tightened by the tension, so that the center of the coil spring 27 will continuously apply pressure to each pressing block 42, thereby pushing each pressing block 42 to slide toward the side close to the center of the mounting ring 41, and finally causing the pressing block 42 to contact the push-type controller 44. When the push-type controller 44 is pressed, a signal will be generated to control the start of the drive motor 22. During the winding process, as the coil spring 27 continues to relax, the pressing block 42 will be continuously moved toward the side away from the center of the mounting ring 41 by the elastic force of the second return spring 43, and finally causing the pressing block 42 to no longer contact the push-type controller 44, and the drive motor 22 will stop at this time.

[0028] like Figure 1-Figure 3 As shown, as a preferred embodiment of the present invention, a limiting unit 3 for limiting the winding rope 25 is further provided on the outside of the installation box 21. The limiting unit 3 can make the winding rope 25 only unwindable during normal operation.

[0029] The limit unit 3 includes two mounting frames 31 symmetrically mounted on both sides of the winding rope 25, and the limit stopper 32 is rotatably mounted on the mounting frame 31, and the winding rope 25 is provided with a plurality of limit platforms 251 matching the limit stopper 32, and the end of the limit stopper 32 away from the winding rope 25 is connected to the mounting frame 31 through a plurality of first return springs 33, and the mounting frame 31 is also equipped with an electromagnet 34; The charging head 122 is also provided with a sensor controller for controlling the start and stop of the electromagnet 34. When the sensor controller detects that the charging head 122 is inserted into the charging port of the electric vehicle or the installation position on the charging pile body 1, the electromagnet 34 will be powered off; when the sensor controller detects that the charging head 122 is pulled out from the charging port of the electric vehicle or the installation position on the charging pile body 1, the electromagnet 34 will be powered on; In addition, the electromagnet 34 is also controlled by the push-type controller 44. When the push-type controller 44 is pressed to generate a signal, and the electromagnet 34 is still in a power-off state, the signal generated by the push-type controller 44 will control the electromagnet 34 to be powered on.

[0030] In the embodiment of the present invention, when in use, when the electromagnet 34 is in the power-off state, the limit block 32 is stuck on the winding rope 25 by the elastic force of the first return spring 33, and the winding rope 25 is limited by the cooperation with the limit platform 251, thereby offsetting the winding force generated by the winding spring 27, so that the winding rope 25 cannot shrink into the inside of the installation box 21, that is, when the charging head 122 is inserted into the electric vehicle charging port or the installation position on the charging pile body 1, it will no longer be affected by the tension of the winding rope 25, preventing the winding force of the winding rope 25 from continuously acting on the charging head 122, causing the problem of unstable connection. When the charging head 122 is pulled out from the electric vehicle charging port or the installation position on the charging pile body 1, the electromagnet 34 is energized, and the limit block 32 is opened to both sides by the magnetic attraction of the electromagnet 34, and no longer contacts the winding rope 25. At this time, when the reel cord 25 is pulled outward, it will always be affected by the reeling force of the coil spring 27. Since a certain amount of force is required to pull the reel cord 25, the user will hold the charging head 122 tightly at this time, which can prevent the charging head 122 from falling due to the operator's unstable grip.

[0031] Working principle: In the initial state, the charging head 122 is plugged into the designated position on the charging pile body 1, and the reeling rope 25 is reeled on the reeling roller 24. When in use, the operator removes the charging head 122 from the charging pile body 1 and plugs it into the charging port of the electric vehicle for charging. In this process, the charging head 122 will synchronously drive the connecting sleeve 252 to move, thereby pulling the reeling rope 25 through the connecting sleeve 252. In the process of pulling the reeling rope 25 for unwinding, the reeling roller 24 rotates, and the reeling roller 24 can pull the coiling spring 27 through the connecting rod 241, so that the coiling spring 27 is tightened and provides a reeling force. Due to the effect of the reeling force, a certain amount of force is required to pull the reeling rope 25. At this time, the user will hold the charging head 122 tightly, which can prevent the charging head 122 from falling due to the operator's unstable grip. At the same time, through the action of the winding force, the winding rope 25 after use can be automatically wound back onto the reel 24. At this time, the position of the charging head 122 will also be limited within a certain range. Even if the connection is unstable or falls off, the charging head 122 will not fall to the ground, which can effectively prevent the charging head 122 from being damaged due to falling.

[0032] During normal use, the tightening degree of the coil spring 27 will not cause the control unit 4 to work. When the user forcibly drags the charging head 122 and causes the winding rope 25 to be overstretched, the force generated by the tightening of the coil spring 27 will push each pressing block 42 to slide to the side close to the center of the mounting ring 41, and eventually the pressing block 42 will contact the push-type controller 44. When the push-type controller 44 is pressed, a signal will be generated to control the start of the drive motor 22. The drive motor 22 will drive the drive shaft 23 to rotate, thereby driving the winding roller 24 to rotate, so as to reel the winding rope 25. As the reel 24 rotates and continuously reels the reel rope 25, the tension on the coil spring 27 will be continuously released, so that the coil spring 27 is in a relaxed state, and the pressure block 42 will continuously move to the side away from the center of the circle of the mounting ring 41 under the elastic force of the second return spring 43, and finally the pressure block 42 will no longer contact the push-type controller 44, at which time the drive motor 22 will stop, the reel rope 25 is reeled, and the reel roller 24 will also stop rotating. And because the force of the reel rope 25 is directly applied to the charging head 122, it will not cause damage to the connection between the charging head 122 and the charging line 121, and the connection between the charging line 121 and the charging pile body 1.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pressure-sensitive charging pile for new energy vehicles, characterized in that: The charging pile body includes a charging pile body connected to a charging unit, the charging unit includes a charging head, and the charging head is connected to the base through a charging line; and further includes: A protection module, the protection module comprises an installation box installed at the bottom of the charging pile body, a winding roller is rotatably installed in the installation box, and a driving unit for driving the winding roller to rotate is also provided on the installation box, a winding rope is wound on the winding roller, the free end of the winding rope extends to the outside of the installation box, and the free end of the winding rope is connected to a connecting sleeve, and the connecting sleeve is installed at the bottom of the charging head, and installation boxes are provided at both ends of the winding roller, and a coil spring is installed in each of the installation boxes, and connecting rods are installed at both ends of the winding roller, and the free ends of the two coil springs are respectively connected to the two connecting rods; The control unit is arranged at the center of a coil spring, and when the coil spring is tightened and a preset pressure is applied to the control unit, the control unit controls the drive unit to start; when the coil spring is continuously relaxed and the pressure on the control unit is released, the control unit controls the drive unit to stop working.

2. The pressure-sensitive charging pile for new energy vehicles according to claim 1, characterized in that: A base is arranged at the bottom of the charging pile body.

3. The pressure-sensitive charging pile for new energy vehicles according to claim 1, characterized in that: The protection module also includes a support frame installed outside the installation box, the winding rope passes through the support frame, and a limiting ring matching the support frame is also provided on the side of the winding rope close to the connecting sleeve.

4. The pressure-sensitive charging pile for new energy vehicles according to claim 1, characterized in that: The driving unit comprises a driving motor mounted on the mounting box, the output end of the driving motor is connected to a driving shaft, and the winding roller is sleeved on the driving shaft; When the coil spring is tightened and applies a preset pressure to the control unit, the control unit controls the drive motor to start; When the coil spring continues to relax and releases the pressure on the control unit, the control unit will control the drive motor to stop working.

5. The pressure-sensitive charging pile for new energy vehicles according to claim 4, characterized in that: The control unit includes a mounting ring coaxially arranged with the drive shaft, and a plurality of pressure blocks are installed in a ring array on the mounting ring, one end of each of the pressure blocks is installed in a mounting hole opened in the mounting ring, and each of the pressure blocks is installed in the mounting hole along the radial sliding direction of the mounting ring, one end of each of the pressure blocks located inside the mounting hole is connected to a side of the mounting hole close to the center of the mounting ring through a second return spring, and a push-type controller is also provided on the side of each of the mounting holes close to the center of the mounting ring.

6. The pressure-sensitive charging pile for new energy vehicles according to claim 5, characterized in that: A limiting unit for limiting the position of the reeling rope is also provided on the outside of the installation box, and the limiting unit allows the reeling rope to only be unwound during normal operation.

7. The pressure-sensitive charging pile for new energy vehicles according to claim 6, characterized in that: The limit unit comprises two mounting frames symmetrically mounted on both sides of the winding rope, the limit stopper is rotatably mounted on the mounting frame, and the winding rope is provided with a plurality of limit platforms matching the limit stopper, the end of the limit stopper away from the winding rope is connected to the mounting frame through a plurality of first return springs, and the mounting frame is also provided with an electromagnet; The charging head is also provided with a sensor controller for controlling the start and stop of the electromagnet. When the sensor controller detects that the charging head is inserted into the charging port of the electric vehicle or the installation position on the charging pile body, the electromagnet will be powered off; when the sensor controller detects that the charging head is pulled out from the charging port of the electric vehicle or the installation position on the charging pile body, the electromagnet will be powered on; The electromagnet is also controlled by a push-type controller. When the push-type controller is pressed to generate a signal and the electromagnet is still in a power-off state, the signal generated by the push-type controller will control the electromagnet to be energized.

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