CN221894444U - Cable winding roll with controllable winding and unwinding length - Google Patents

Abstract

The application relates to a cable winding roll with controllable winding and unwinding length, which relates to the technical field of winding rolls, and comprises a control panel, a winding control unit and a winding control unit, wherein the control panel is externally connected to a charging pile shell and is used for inputting a set length signal, an unwinding control signal and a winding control signal; the servo motor is arranged in the cable winding drum, and the driving end is in transmission fit with the reel hub and is used for driving the reel hub to rotate towards the paying-off direction or the winding-up direction; the paying-off detection module is fixedly connected with the frame body and is used for receiving paying-off control signals or winding control signals, detecting the winding and unwinding length and outputting winding and unwinding length signals; the signal processing module is used for receiving and comparing the set length signal and the wire winding and unwinding length signal and outputting a locking control signal when the wire winding and unwinding length reaches the set length; the servo motor is connected with the signal processing module in a signal way, receives the locking control signal and stops rotating. The application can wind and unwind the cable with set length according to the actual requirement of the user.

Description

A cable reel with controllable cable length

Technical Field

The present application relates to the field of cable reel technology, and in particular to a cable reel with controllable cable reel length.

Background Art

Electric vehicles are created in response to energy shortages and environmental issues, and electric vehicle charging pile equipment is like a gas station, providing charging services. The charging pile is a power supply device installed outside the electric vehicle, connected to the AC power grid, and provides power for the on-board charging servo motor of the electric vehicle.

In the prior art, the electric cable reel is installed in the shell of the charging pile, and the charging gun connected to the cable is placed outside the shell of the charging pile. The common cable reel is mainly composed of a frame, a servo motor, a reel hub, etc. The frame is fixed to the internal structure of the charging pile shell, and the installation shaft of the reel hub is rotatably connected to the frame. The servo motor is driven by the reel hub through a transmission mechanism such as a gear ring belt. When the charging pile needs to be used, the user can control the servo motor to drive the reel hub to rotate through the control panel external to the charging pile, and the cable wound on the reel hub can be released.

However, when the user controls the cable reel in the charging pile through the control panel to release the cable, the servo motor releases all the cables on the reel hub after receiving the control signal. If the distance between the charging port of the car and the charging pile is short, the excessively long cable can easily be dragged on the ground and get stained with water stains, dust, etc. on the ground, which can easily affect the service life of the cable. There is room for improvement.

Utility Model Content

In order to control the cable reel to release a set length of cable according to user needs and reduce the situation where the excessively long cable is dragged on the ground and causes a reduction in service life, the present application provides a cable reel with controllable reel length.

The present application provides a cable reel with controllable cable length, which adopts the following technical solution:

A cable reel with controllable cable length, comprising:

The control panel is externally mounted on the charging pile housing and is used to input the set length signal, the line release control signal, and the line retraction control signal;

A servo motor is fixedly connected to the frame, a driving end is matched with the reel hub, and is connected to the signal output end of the control panel, and is used to receive the release control signal and drive the reel hub to rotate in the release direction, and receive the take-up control signal and drive the reel hub to rotate in the take-up direction;

A line-releasing detection module is fixedly connected to the frame and connected to the signal output terminal of the control panel, and is used to receive the line-releasing control signal or the line-retracting control signal, detect the length of the line-retracting and releasing, and output the line-retracting and releasing length signal;

A signal processing module is connected to the control panel and the signal output end of the wire-releasing detection module, and is used to receive and compare the set length signal with the wire-reeling length signal, and output a locking control signal when the wire-reeling length reaches the set length;

The signal input end of the servo motor is signal-connected to the signal output end of the signal processing module, and the servo motor receives the locking control signal and stops rotating.

By adopting the above technical solution, when the operator uses the charging pile, the actual required cable length can be determined according to the distance between the car and the charging pile, and the set length of the cable can be set through the control panel and then the release control signal can be input. After receiving the release control signal, the servo motor drives the reel hub to rotate, so that the cable on the reel hub is released through the charging pile. During the release process, the release detection module detects the actual length of the cable released by the charging pile. After comparison by the signal processing module, when the length of the released cable reaches the preset required cable length, the servo motor stops rotating, and the reel hub locks and stops releasing the cable; when the user has finished charging, the reel control signal can be input through the control panel, and the servo motor can be controlled to rotate in the reel direction until the released cable is completely recovered and then stops driving. Through the coordination and use of the control panel, servo motor, wire-release detection module and signal processing module, the length of the released cable can be automatically controlled according to the user's cable length requirements, and the cable reel can be automatically controlled to stop releasing the cable when the retracted and released length reaches the set length. This can meet the user's cable length requirements while avoiding the situation where the cable is too long and dragged on the ground, effectively reducing the occurrence of cable contamination and damage, and effectively extending the service life of the charging pile cable.

Preferably, a mounting block is fixedly connected to the frame, a mounting cavity is formed in the mounting block, two parallel limiting columns are rotatably connected in the mounting cavity, and a wire hole for the cable to pass through is formed between the two limiting columns.

By adopting the above technical solution, during the process of the cable reel winding and releasing the cable, the rotation of the two limit columns can convert the sliding friction formed by the contact between the cable and the mounting block into rolling friction, which can effectively reduce the wear of the cable during the winding and releasing process and further extend the service life of the cable.

Preferably, a sensing hole is formed through the body of one of the limit posts;

The wire-laying detection module comprises an infrared radiation sensor fixedly connected to the mounting block, the infrared radiation sensor comprises a transmitting end and a receiving end, the transmitting end and the receiving end are located on both sides of the limiting column, and when the limiting column rotates until the sensing hole is aligned with the transmitting end and the receiving end, the receiving end outputs a high-level signal;

The signal output terminal of the receiving end is signal-connected to a first single-chip microcomputer, which receives the high-level signal, calculates the number of occurrences of the high-level signal, and outputs the retractable line length signal.

By adopting the above technical scheme, during the process of reeling and releasing the cable, when the limit column rotates to the point where the sensing hole is directly opposite the transmitting end and the receiving end, the infrared rays emitted by the transmitting end are received by the receiving end, and the receiving end outputs a high-level signal. Since the cable reeling and releasing length corresponding to each rotation of the limit column is fixed, the length of the reeled and released cable can be calculated by the first single-chip microcomputer according to the number of times the high-level signal is received, thereby achieving the technical effect of automatically detecting the actual length of the reeled and released cable.

Preferably, the mounting block is provided with two mounting grooves, the transmitting end and the receiving end are respectively embedded and installed in the mounting grooves, and through holes for infrared rays to pass through are respectively penetrated on the inner walls of the two mounting grooves close to the mounting cavity.

By adopting the above technical scheme, the transmitting end and the receiving end are embedded in the installation groove. When the limiting column is rotated until the sensing hole is coaxial with the through holes on both sides of the limiting column, the infrared rays emitted by the transmitting end can be received by the receiving end, thereby realizing the technical effect of sensing the sensing hole. The two installation grooves can prevent the transmitting end and the receiving end from being exposed to the outside of the installation block, thereby making the overall structure of the installation block more compact and providing good protection for the transmitting end and the receiving end.

Preferably, a limiting ring groove is provided on the outer side wall of the limiting column, and the inner corner of the limiting ring groove is rounded, and the wire passing hole is formed between the groove walls of the two limiting ring grooves.

By adopting the above technical solution, since the inner corners of the limiting ring groove are rounded, the sharp corners in the wire hole can be reduced, which can further reduce the damage to the cable during the wire reeling and releasing process.

Preferably, the signal processing module includes a second single-chip microcomputer, a signal input terminal of the second single-chip microcomputer is signal-connected to the first single-chip microcomputer and a signal output terminal of the control panel, and the second single-chip microcomputer receives and compares the retractable line length signal and the set length signal.

By adopting the above technical solution, the second single chip compares the length of the retractable wire with the set length, and automatically controls the servo motor and the second motor to stop running when the length of the retractable wire reaches the set length, thereby achieving the technical effect of automatically locking the cable reel.

Preferably, the reel hub comprises a winding drum and a mounting shaft, the mounting shaft coaxially passes through the winding drum, and both ends of the mounting shaft are fixedly connected to the frame, a plurality of electromagnetic locks are fixedly connected to the frame, and the plurality of electromagnetic locks each comprise a telescopic rod, and a plurality of locking slots are provided on the side wall of the winding drum opposite to the electromagnetic lock;

The signal input ends of the electromagnetic locks are connected to the signal output ends of the second single chip microcomputer, and the electromagnetic locks receive the locking control signal and drive the telescopic rod to extend into the locking slot.

By adopting the above technical solution, when the length of the reel reaches the set length, the electromagnetic lock extends the telescopic rod so that the telescopic rod slides into the locking slot, which can reduce the collision of the driving teeth on the driving shaft of the servo motor caused by the continuous rotation of the reel hub due to inertia, thereby reducing the damage to the servo motor, thereby extending the service life of the servo motor.

In summary, the cable reel with controllable reel length has at least one of the following beneficial technical effects:

1. Through the coordination and use of the control panel, servo motor, infrared beam sensor, limit column, first single-chip microcomputer and second single-chip microcomputer, technical effects such as automatic retracting and releasing, automatic detection of retracting and releasing length, and automatic locking of retracting and releasing can be achieved. The cable can be retracted and released according to the actual cable length required by the user, reducing the situation where the cable is dragged on the ground due to being released too long, causing the cable to be contaminated and damaged, and effectively extending the service life of the cable;

2. By using the second single-chip microcomputer and the electromagnetic lock together, the damage to the driving teeth on the servo motor drive shaft caused by the continuous rotation of the reel hub due to inertia can be reduced, thereby extending the service life of the servo motor.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of an embodiment of the present application for illustrating the overall structure of a cable reel.

FIG. 2 is a schematic diagram of an embodiment of the present application for illustrating a servo motor installation structure.

FIG. 3 is a schematic diagram of an embodiment of the present application for illustrating the internal structure of a mounting block.

FIG. 4 is a schematic diagram for illustrating the installation position of the electromagnetic lock according to an embodiment of the present application.

FIG. 5 is a schematic diagram of an embodiment of the present application for demonstrating the internal signal transmission of a cable reel

Explanation of the reference numerals: 1. Servo motor; 2. Frame; 24. Mounting block; 242. Mounting cavity; 243. Mounting slot; 25. Limiting column; 251. Sensing hole; 252. Limiting ring groove; 26. Wire hole; 3. Reel hub; 31. Reel; 311. Locking slot; 32. Mounting shaft; 4. Infrared counter-radiation sensor; 41. Transmitter; 42. Receiving end; 43. Through hole; 5. Electromagnetic lock; 51. Telescopic rod.

DETAILED DESCRIPTION

The present application is further described in detail below in conjunction with Figures 1-5.

Example

The embodiment of the present application discloses a cable reel with controllable length of reeling and unwinding. Referring to Figures 1, 2 and 5, it mainly includes a control panel, which is externally mounted on the charging pile housing and is used to input a set length signal, a line-release control signal and a line-rewinding control signal; a servo motor 1, which is mounted in the cable reel, and the driving end is in transmission cooperation with the reel hub 3, and is connected to the signal output end of the control panel for receiving a line-release control signal and driving the reel hub 3 to rotate in the line-release direction, and receiving a line-rewinding control signal and driving the reel hub 3 to rotate in the line-rewinding direction; a line-release detection module, which is fixedly connected to the frame 2, and is connected to the signal output end of the control panel for receiving a line-release control signal or a line-rewinding control signal and detecting the length of the reeling and unwinding line, and outputting a line-release and unwinding length signal; a signal processing module, which is connected to the control panel and the signal output end of the line-release detection module for receiving and comparing the set length signal and the reeling and unwinding line length signal, and outputting a locking control signal when the reeling and unwinding line length reaches the set length.

Referring to Figures 1 and 2, a driving tooth is provided on the outer wall of a side plate of the reel hub 3, and the driving shaft of the servo motor 1 is connected to the driving tooth through a transmission belt, gears and other structures. The signal input end of the servo motor 1 is connected to the signal output end of the signal processing module, and the servo motor 1 receives the locking control signal and stops rotating.

When the operator uses the charging pile, the actual required cable length can be determined according to the distance between the car and the charging pile, and the set length of the cable can be set through the control panel and then the release control signal can be input. After receiving the release control signal, the servo motor 1 drives the reel hub 3 to rotate, so that the cable on the reel hub 3 is released through the charging pile.

During the cable release process, the cable release detection module detects the actual length of the cable released by the charging pile. After comparison by the signal processing module, when the length of the released cable reaches the preset required cable length, the servo motor 1 stops rotating, and the reel hub 3 locks and stops releasing the cable.

When the user has finished charging, the control panel inputs the wire reel control signal, which can control the servo motor 1 to rotate in the wire reel direction until the released cable is completely recovered and stops driving. Through the coordination and use of the control panel, the servo motor 1, the wire release detection module and the signal processing module, the length of the released cable can be automatically controlled according to the user's cable length requirements, and the reel can be automatically controlled to stop releasing the cable when the reel length reaches the set length. While meeting the user's cable length requirements, it can avoid the situation where the cable is too long and dragged on the ground, which can effectively reduce the occurrence of cable contamination and damage, and effectively extend the service life of the charging pile cable.

1 and 3 , a mounting block 24 is fixedly connected to the frame body 2, a guide hole matching the guide rod is penetrated through the mounting block 24, a mounting cavity 242 is formed in the mounting block 24, two parallel limit columns 25 are rotatably connected in the mounting cavity 242, and a wire hole 26 for the cable to pass through is formed between the two limit columns 25.

During the process of cable retraction and extension, the rotation of the two limit posts 25 can convert the sliding friction formed by the contact between the cable and the mounting block 24 into rolling friction, which can effectively reduce the wear of the cable during the retraction and extension process and further extend the service life of the cable.

3 , a sensing hole 251 is formed through the body of one of the limit posts 25; the line-laying detection module includes an infrared radiation sensor 4 fixedly connected to the mounting block 24, the infrared radiation sensor 4 includes a transmitting end 41 and a receiving end 42, the transmitting end 41 and the receiving end 42 are located on both sides of the limit post 25, when the limit post 25 rotates until the sensing hole 251 is aligned with the transmitting end 41 and the receiving end 42, the receiving end 42 outputs a high level signal;

The signal output terminal of the receiving terminal 42 is connected to the first single chip microcomputer, which receives the high level signal, calculates the number of occurrences of the high level signal, and outputs a retractable line length signal.

During the process of retracting and releasing the cable, when the limit column 25 rotates to the point where the sensing hole 251 is directly opposite the transmitting end 41 and the receiving end 42, the infrared rays emitted by the transmitting end 41 are received by the receiving end 42, and the receiving end 42 outputs a high-level signal. Since the cable retracting and releasing length corresponding to each rotation of the limit column 25 is fixed, the length of the retracted and released cable can be calculated by the first single-chip microcomputer according to the number of times the high-level signal is received, thereby achieving the technical effect of automatically detecting the actual length of the retracted and released cable on the cable reel.

3 , the mounting block 24 is provided with two mounting grooves 243 , in which the transmitting end 41 and the receiving end 42 are respectively embedded and installed, and through holes 43 for infrared rays to pass through are respectively provided on the inner walls of the two mounting grooves 243 near the mounting cavity 242 .

The transmitting end 41 and the receiving end 42 are embedded in the installation groove 243. When the limiting column 25 is rotated to the point where the sensing hole 251 is coaxial with the through holes 43 on both sides of the limiting column 25, the infrared rays emitted by the transmitting end 41 can be received by the receiving end 42, thereby achieving the technical effect of sensing the sensing hole 251. The two installation grooves 243 can prevent the transmitting end 41 and the receiving end 42 from being exposed to the outside of the installation block 24, thereby making the overall structure of the installation block 24 more compact and providing good protection for the transmitting end 41 and the receiving end 42.

1 and 3 , a limiting annular groove 252 is provided on the outer wall of the limiting column 25 , and the inner corners of the limiting annular groove 252 are rounded, and the wire hole 26 is formed between the groove walls of the two limiting annular grooves 252 .

Since the inner corners of the limiting ring groove 252 are rounded, the sharp corners in the wire hole 26 can be reduced, and the damage to the cable during the wire retracting and releasing process can be further reduced.

In the embodiment of the present application, the signal processing module adopts a second single-chip microcomputer, the signal input end of the second single-chip microcomputer is connected to the signal output end of the first single-chip microcomputer and the control panel, and the second single-chip microcomputer receives the retractable line length signal and the set length signal and compares them.

The second single chip compares the length of the retractable wire with the set length, and automatically controls the servo motor 1 and the second motor to stop running when the length of the retractable wire reaches the set length, thereby achieving the technical effect of automatically locking the cable reel.

Referring to Figure 4, the reel hub 3 includes a winding drum 31 and a mounting shaft 32, the mounting shaft 32 coaxially passes through the winding drum 31, and both ends of the mounting shaft 32 are fixedly connected to the frame 2, and a plurality of electromagnetic locks 5 are fixedly connected to the frame 2, and the plurality of electromagnetic locks 5 each include a telescopic rod 51, and a plurality of locking slots 311 are provided on the side walls opposite to the winding drum 31 and the electromagnetic locks 5; the signal input ends of the plurality of electromagnetic locks 5 are connected to the signal output ends of the second single-chip microcomputer, and the plurality of electromagnetic locks 5 receive locking control signals and drive the telescopic rods 51 to extend into the locking slots 311.

The signal input end of the electromagnetic lock 5 is also connected to the signal output end of the control panel. When the operator inputs a wire-reeling control signal through the control panel, the electromagnetic lock 5 retracts the telescopic rod 51 after receiving the wire-reeling control signal.

When the length of the reel-in wire reaches the set length, the electromagnetic lock 5 extends the telescopic rod 51 so that the telescopic rod 51 slides into the locking slot 311, which can reduce the collision of the driving teeth on the driving shaft of the servo motor 1 caused by the continuous rotation of the reel hub 3 due to inertia, thereby reducing the damage to the servo motor 1, thereby extending the service life of the servo motor 1.

The implementation principle of a cable reel with controllable reel length in the embodiment of the present application is as follows: through the coordination and use of the control panel, the servo motor 1, the infrared beam sensor 4, the limit column 25, the first single-chip microcomputer and the second single-chip microcomputer, technical effects such as automatic reeling and unreeling, automatic detection of reeling and unreeling length, and automatic locking of reeling and unreeling can be achieved. The cable can be reeled and unreeled according to the actual cable length required by the user, reducing the situation where the cable is dragged on the ground due to being released too long, causing the cable to be contaminated or damaged, thereby effectively extending the service life of the cable.

The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims (7)

1. A cable take-up reel with a controllable take-up and pay-off length, comprising:

The control panel is externally connected to the charging pile shell and is used for inputting a set length signal, a paying-off control signal and a wire-collecting control signal;

The servo motor (1) is fixedly connected with the frame body (2), the driving end is in transmission fit with the reel hub (3), is in signal connection with the signal output end of the control panel, and is used for receiving the paying-off control signal and driving the reel hub (3) to rotate towards the paying-off direction, receiving the winding control signal and driving the reel hub (3) to rotate towards the winding direction;

The paying-off detection module is fixedly connected with the frame body (2), is in signal connection with the signal output end of the control panel, and is used for receiving the paying-off control signal or the paying-off control signal, detecting the paying-off length and outputting a paying-off length signal;

The signal processing module is in signal connection with the control panel and the signal output end of the pay-off detection module, and is used for receiving and comparing the set length signal with the pay-off length signal and outputting a locking control signal when the pay-off length reaches the set length;

The signal input end of the servo motor (1) is in signal connection with the signal output end of the signal processing module, and the servo motor (1) receives the locking control signal and stops rotating.

2. The cable winding roll with the controllable winding and unwinding length according to claim 1, wherein a mounting block (24) is fixedly connected to the frame body (2), a mounting cavity (242) is formed in the mounting block (24), two limit posts (25) which are arranged in parallel are rotationally connected to the mounting cavity (242), and a wire through hole (26) through which a cable passes is formed between the two limit posts (25).

3. The cable winding roll with controllable winding and unwinding length according to claim 2, characterized in that an induction hole (251) is formed in a column body of one of the limit columns (25) in a penetrating manner;

The paying-off detection module comprises an infrared correlation sensor (4) fixedly connected with the mounting block (24), the infrared correlation sensor (4) comprises a transmitting end (41) and a receiving end (42), the transmitting end (41) and the receiving end (42) are positioned on two sides of the limiting column (25), and when the limiting column (25) rotates to the position that the sensing hole (251) is right opposite to the transmitting end (41) and the receiving end (42), the receiving end (42) outputs a high-level signal;

The signal output end of the receiving end (42) is connected with a first single chip microcomputer, and the first single chip microcomputer receives the high-level signal, calculates the occurrence number of the high-level signal and outputs the wire winding and unwinding length signal.

4. A cable winding roll with controllable winding and unwinding length according to claim 3, wherein the mounting block (24) is provided with two mounting grooves (243), the transmitting end (41) and the receiving end (42) are respectively embedded and mounted in the mounting grooves (243), and the two mounting grooves (243) are respectively provided with through holes (43) for infrared ray to pass through in a penetrating manner near the inner wall of the mounting cavity (242).

5. A cable take-up and pay-off length controllable winding drum according to claim 3, wherein a limiting ring groove (252) is formed on the outer side wall of the limiting column (25), inner corners of the limiting ring groove (252) are arranged in a round shape, and the wire passing hole (26) is formed between the groove walls of the two limiting ring grooves (252).

6. The cable winding roll with controllable winding and unwinding length according to claim 3, wherein the signal processing module comprises a second single-chip microcomputer, a signal input end of the second single-chip microcomputer is in signal connection with a signal output end of the first single-chip microcomputer and a signal output end of the control panel, and the second single-chip microcomputer receives and compares the winding and unwinding length signal and the set length signal.

7. The cable winding roll with controllable winding and unwinding length according to claim 6, wherein the reel hub (3) comprises a winding reel (31) and a mounting shaft (32), the mounting shaft (32) coaxially penetrates through the winding reel (31) and two ends of the mounting shaft (32) are fixedly connected with a frame body (2), a plurality of electromagnetic locks (5) are fixedly connected to the frame body (2), the electromagnetic locks (5) comprise telescopic rods (51), and a plurality of locking slotted holes (311) are formed in the side walls, opposite to the electromagnetic locks (5), of the winding reel (31);

The signal input ends of the electromagnetic locks (5) are in signal connection with the signal output ends of the second single chip microcomputer, and the electromagnetic locks (5) receive the locking control signals and drive the telescopic rods (51) to extend into the locking slotted holes (311).