Car charging pile

Abstract

This prevents the charging wire harness from being stepped on and damaged. [Solution] An automotive charging pile is provided with a charging pile interface on the charging pile body, and the wire harness module comprises a module housing 21, a winding reel 22, a charging wire harness 23 and a reel drive member 24, a housing chamber is provided inside the module housing, the winding reel is rotatably fitted into the module housing and the winding reel is located inside the housing chamber, the reel drive member is used to rotate the winding reel, the charging wire harness is wound around the winding reel, a charging pile connector 3 and an automotive connector are connected to both ends of the charging wire harness, the charging pile connector and the charging pile interface are plug-in fitted in a detachable manner, and the automotive connector and the automotive charging interface are plug-in fitted in a detachable manner.

Description

Technical Field

[0001] This application relates to the field of charging piles, particularly to automotive charging piles.

Background Art

[0002] Due to the limited conventional fuel resources, the energy crisis has become the focus of people's attention, and electric vehicles have become an important solution to alleviate this problem. With the popularization and development of electric vehicles, charging piles for charging electric vehicles, as an important component of the electric vehicle ecosystem, are in increasing demand day by day. Among them, high-efficiency and environmentally friendly DC charging has already become the charging method that electric vehicle users first choose.

[0003] In the related art in the past, the charging pile includes a charging pile body and a charging wire harness. One end of the charging wire harness is fixedly connected to the charging pile body, and an automotive connector is fixedly attached to the other end. The automotive connector is used to be detachably plugged and fitted into the charging interface of the electric vehicle.

[0004] When charging an electric vehicle, the user needs to plug the automotive connector into the charging interface and then start the charging pile body to charge the electric vehicle. On the other hand, after the charging of the electric vehicle is completed, the user needs to unplug the automotive connector from the charging interface and temporarily install the automotive connector on the connector fixing rack of the charging pile so that it can be removed during the next charging. For example, refer to Figure 1 of the specification of the invention patent of Patent Document 1.

[0005] Regarding the above-mentioned related technologies, the applicant has found in practice that after the automotive connector of the charging pile is temporarily installed on the connector fixing rack of the charging pile and plugged into the charging interface of an electric vehicle, the charging wire harness is often left scattered on the ground, making it susceptible to being stepped on and damaged, and increasing the maintenance costs of the charging pile. [Prior art documents] [Patent Documents]

[0006] [Patent Document 1] Publication number CN119590238A [Overview of the Initiative] [Problems that the invention aims to solve]

[0007] This application provides an automotive charging pile to reduce the occurrence of situations in which charging wire harnesses are stepped on and damaged. [Means for solving the problem]

[0008] The automotive charging pile provided in this application comprises a charging pile body and a wire harness module.

[0009] The charging pile body is provided with a charging pile interface. The wire harness module comprises a module housing, a winding reel, a charging wire harness, and a reel drive member. A housing chamber is provided inside the module housing, the winding reel is rotatably fitted into the module housing, the winding reel is located inside the housing chamber, and the reel driving member is used to rotate the winding reel. The charging wire harness is wound around the winding reel, the charging wire harness is movably attached to the module housing, and the charging wire harness has a charging pile connector and an automotive connector connected to both ends, The charging pile connector and the charging pile interface are plug-in mated in a detachable manner, and the automotive connector and the automotive charging interface are plug-in mated in a detachable manner.

[0010] By adopting the above technical solution, when an electric vehicle needs charging, the user takes out the required length of charging wire harness from the storage chamber, plugs in the charging pile connector and the automotive connector to the charging pile connector and charging interface respectively, and charges the electric vehicle. When charging the electric vehicle, the excess charging wire harness is stored in the storage chamber, preventing the charging wire harness from being scattered on the ground and reducing the likelihood of it being stepped on and damaged.

[0011] After the electric vehicle is fully charged, the user disconnects the charging pile connector and the vehicle connector from the charging pile connector and the charging interface, respectively. The charging wire harness is then stored in the storage chamber using a reel drive member. The user then moves and stores the wire harness module, which can be stored in the user's car or home. This allows the user to use and maintain the wire harness module personally, reducing the likelihood of the wire harness module being shared. This further reduces the amount of wire harnesses scattered on the ground and lowers the maintenance costs of the charging pile. Additionally, when the user does not need to charge the electric vehicle, it becomes easier to use the charging wire harness to power other devices, which is advantageous in ensuring the versatility of the wire harness module.

[0012] Optionally, the reel drive member is arranged as a spiral spring, and both ends of the reel drive member are attached to the module housing and the winding reel, respectively.

[0013] By employing the above technical solution, when an electric vehicle needs charging, the user can pull out the required length of charging wire harness from the housing chamber against the elastic force of the reel drive member, and plug in both ends of the charging wire harness to the charging pile connector and charging interface, respectively.

[0014] After the electric vehicle is fully charged, the user removes both ends of the charging wire harness from the charging pile connector and charging interface, respectively, and the elastic force stored in the spiral spring rotates the winding reel in the reverse direction, thereby storing the charging wire harness in the storage chamber, which is advantageous in reducing the difficulty of storing the charging wire harness by the user.

[0015] The winding reel may optionally be provided with a first reel groove and a second reel groove, wherein the second reel groove has a larger diameter than the first reel groove, and the first reel groove communicates with the second reel groove via a notch. A locking disc is rotatably fitted into the module housing, and the locking disc is provided with a sliding projection, the sliding projection is provided away from the axis of the locking disc, and the sliding projection is slidably fitted into the first reel groove and the second reel groove. The winding reel is provided with a locking projection at the location of the notch, the locking projection is provided with a locking groove for accommodating the sliding projection, and both the first reel groove and the second reel groove communicate with the locking groove, and when the sliding projection is accommodated inside the locking groove, the angle α between the line connecting the axis of the locking disc and the sliding projection and the line connecting the axis of the winding reel and the sliding projection is in the range of 75° to 105°.

[0016] By adopting the above technical solution, after the user pulls out the charging wire harness to meet their usage needs, releasing the charging wire harness rotates the winding reel in the reverse direction, causing the sliding projection to retract into the locking groove, and further locking the length of the charging wire harness to the required length becomes easier. This makes it easier for the user to control the length of the charging wire harness they have pulled out and is advantageous in reducing the occurrence of situations where the charging wire harness is too long and scattered on the ground.

[0017] Optionally, the reel drive member is arranged as an electric motor, and the reel drive member has a stator and a rotor attached to the module housing and the winding reel, respectively. The wire harness module further comprises a control button electrically connected to the reel drive member, The control button has a first control state and a second control state, and when the control button switches between the first control state and the second control state, the rotation direction of the rotor of the reel drive member switches between counterclockwise and clockwise.

[0018] By adopting the above technical solution, when the electric vehicle needs charging, the user adjusts the state of the control button, causing the winding reel to rotate due to the action of the reel drive member, which then feeds out the required length of charging wire harness from the storage chamber, thus facilitating the user to subsequently plug in both ends of the charging wire harness to the charging pile connector and charging interface, respectively.

[0019] After the electric vehicle is fully charged, the user can pull the charging wire harness back into the storage chamber by disconnecting both ends of the charging wire harness from the charging pile connector and charging interface, respectively, and then adjusting the state of the control button to rotate the winding reel in the reverse direction, thus reducing the difficulty for the user in storing the charging wire harness.

[0020] Optionally, the wire harness module further includes a storage battery for supplying power to the reel drive member and the control button.

[0021] By adopting the above technical solution, when the wire harness is sent out from or drawn into the accommodation chamber by the reel drive member, the storage battery supplies energy to the reel drive member, so that it does not overly depend on external power supply when using the reel drive member, which is advantageous for ensuring the ease of use of the wire harness module.

[0022] Optionally, the charging wire harness is electrically connected to the storage battery, and when charging an electric vehicle through the wire harness module, the current charges the storage battery through the charging wire harness.

[0023] By adopting the above technical solution, the storage battery is charged along with the charging of the electric vehicle, which is advantageous for reducing the occurrence of situations where the user separately charges or replaces the storage battery and further ensuring the ease of use of the wire harness module.

[0024] Optionally, a liquid cooling module for transporting refrigerant is provided in the charging pile body. The charging wire harness includes a conductor core wire, a wire harness inlet pipe, a wire harness outlet pipe, and an intermediate filling layer. The conductor core wire, the wire harness inlet pipe, and the wire harness outlet pipe are all located inside the intermediate filling layer. The wire harness inlet pipe is connected to the wire harness outlet pipe, the wire harness inlet pipe and the charging pile body are connected in a detachable manner, and the wire harness outlet pipe and the charging pile body are connected in a detachable manner. When both the wire harness inlet pipe and the wire harness outlet pipe are connected to the charging pile body, the refrigerant can circulate among the liquid cooling module, the wire harness inlet pipe, and the wire harness outlet pipe.

[0025] By adopting the above technical solution, when charging an electric vehicle is required, the charging pile body is connected to the wire harness inlet and wire harness outlet, and the refrigerant is circulated between the liquid cooling module, the wire harness inlet, and the wire harness outlet, which is advantageous in reducing the adverse effects of heat generated in the conductor core when charging at high power.

[0026] Optionally, the charging pile body may be provided with a cleaning module for transporting cleaning agent. When both the wire harness inlet pipe and the wire harness outlet pipe are connected to the charging pile body, the cleaning agent circulates between the cleaning module, the wire harness inlet pipe, and the wire harness outlet pipe.

[0027] By adopting the above technical solution, after the electric vehicle is fully charged, the cleaning module introduces cleaning agent into the wire harness inlet and outlet pipes, flushing out any refrigerant remaining inside the wire harness inlet and outlet pipes, thereby improving the convenience of cleaning the wire harness module for the user.

[0028] Optionally, a method for controlling a liquid cooling module and a cleaning module, Step S1 confirms that both the wire harness inlet pipe and the wire harness outlet pipe are completely connected, Step S2 involves measuring the output flow rate Q1 of the refrigerant / cleaning agent output from the output control valve in real time using an output flow meter, and measuring the input flow rate Q2 of the refrigerant / cleaning agent input from the input control valve in real time using an input flow meter. The step includes comparing the output flow rate Q1 with the input flow rate Q2, If the difference between the output flow rate Q1 and the input flow rate Q2 is always within the error range k during time t, it is determined that there is no leakage of refrigerant / cleaning agent, and the refrigerant is continuously transported via the liquid cooling module, or the cleaning agent is continuously transported via the cleaning module. If the difference between the output flow rate Q1 and the input flow rate Q2 is consistently outside the error range k during time t, it is determined that a refrigerant / cleaning agent leak has occurred, and the transport of refrigerant via the liquid cooling module or the transport of cleaning agent via the cleaning module is stopped.

[0029] By adopting the above technical solution, when a leak of refrigerant or cleaning agent occurs, the transport of the refrigerant or cleaning agent can be immediately stopped, reducing losses due to the leak, and lowering the maintenance costs of the automotive charging pile.

[0030] Optionally, the charging pile body is provided with a module chamber for housing the wire harness module.

[0031] By adopting the above technical solution, the wire harness module installed inside the module chamber is less likely to come into direct contact with the outside world, thus reducing the occurrence of situations in which the wire harness module is damaged by collisions or being stepped on. [Effects of the Invention]

[0032] As described above, this application provides at least one beneficial technical effect as described below.

[0033] 1. When an electric vehicle needs charging, the user takes out the required length of charging wire harness from the storage chamber, plugs both ends of the charging wire harness into the charging pile connector and charging interface respectively, and charges the electric vehicle. When charging the electric vehicle, excess charging wire harness is stored in the storage chamber, which reduces the likelihood of the charging wire harness being scattered on the ground and reduces the likelihood of it being stepped on and damaged. After the electric vehicle is fully charged, the user disconnects both ends of the charging wire harness from the charging pile connector and charging interface, respectively, and stores the charging wire harness in the storage chamber using a reel drive component. The user then transfers and stores the wire harness module themselves, which can be in the user's car or home. This allows the user to use and maintain the wire harness module personally, reducing the likelihood of the wire harness module being shared, thus further reducing the amount of wire harnesses scattered on the ground and lowering the maintenance costs of the charging pile. Furthermore, when users do not need to charge their electric vehicles, the charging wire harness can be easily used to supply power to other devices, which is advantageous in ensuring the versatility of the wire harness module.

[0034] 2. When charging the electric vehicle is required, the user adjusts the state of the control button, causing the winding reel to rotate due to the action of the reel drive member, and the required length of charging wire harness is fed out from the storage chamber, making it easy for the user to then plug in both ends of the charging wire harness to the charging pile connector and charging interface, respectively. After the electric vehicle is fully charged, the user can pull the charging wire harness back into the storage chamber by disconnecting both ends of the charging wire harness from the charging pile connector and charging interface, respectively, and then adjusting the state of the control button to rotate the winding reel in the reverse direction, thus reducing the difficulty for the user in storing the charging wire harness. [Brief explanation of the drawing]

[0035] [Figure 1] This is a schematic diagram showing the opening of the module chamber of the charging pile body according to Embodiment 1 of this application. [Figure 2] This is a schematic diagram of the wire harness module according to Embodiment 1 of this application. [Figure 3] This is a first exploded schematic diagram of a wire harness module according to Embodiment 1 of this application. [Figure 4] This is a second exploded schematic diagram of the wire harness module according to Embodiment 1 of this application. [Figure 5] This is a schematic plan view of the first reel groove and the second reel groove according to Embodiment 1 of this application. [Figure 6] This is a schematic diagram of the wire harness module according to Embodiment 2 of this application. [Figure 7] This is a schematic diagram of the winding of the charging wire harness according to Embodiment 2 of this application. [Figure 8] This is a schematic cross-sectional view of a wire harness module according to Embodiment 2 of this application. [Figure 9] This is a schematic diagram of the fitting between the lock ratchet ring and the lock ratchet teeth according to Embodiment 2 of this application. [Figure 10] This is a schematic exploded view of the lock ratchet ring and lock ratchet teeth according to Embodiment 2 of this application. [Figure 11] This is a schematic cross-sectional view of a wire harness module according to Embodiment 3 of this application. [Figure 12] This is a schematic diagram of the transmission gear set according to Embodiment 3 of this application. [Figure 13]This is a PID diagram of the liquid cooling module and cleaning module according to Embodiment 4 of this application. [Figure 14] This is a schematic cross-sectional view of the charging wire harness according to Embodiment 4 of this application. [Modes for carrying out the invention]

[0036] The present application will be described in more detail below with reference to Figures 1 through 14.

[0037] Example 1: Embodiment 1 of this application discloses an automotive charging pile. Referring to Figures 1 and 2, the automotive charging pile comprises a charging pile body 1 and a wire harness module 2.

[0038] The charging pile unit 1 is electrically connected to the power grid, and the charging pile unit 1 is provided with a charging pile interface 11, which can be used to charge electric vehicles. One or more charging pile interfaces 11 may be provided. Furthermore, when multiple charging pile interfaces 11 are provided, the multiple charging pile interfaces 11 are distributed around the charging pile unit 1, which facilitates charging electric vehicles in different directions and is advantageous in increasing the versatility of the charging pile unit 1.

[0039] Referring to Figure 1, a module chamber 101 is provided at the bottom of the charging pile body 1. The module chamber 101 is opened and closed by a cover plate rotatably connected to the charging pile body 1, allowing the wire harness module 2 to be housed inside the module chamber 101, thus reducing the likelihood of external interference or damage to the wire harness module 2. For example, in this embodiment 1, three charging pile interfaces 11 may be provided, two of which are located on either side of the top of the charging pile body 1, and the remaining charging pile interface 11 is located inside the module chamber 101. The charging pile interface 11 located inside the module chamber 101 can be connected to the charging pile body 1 via a charging cable, which facilitates quick connection between the wire harness module 2 and the charging pile body 1 when the wire harness module 2 is housed inside the module chamber 101, and is advantageous in reducing the occurrence of situations where one end of the charging wire harness 23 is scattered outside the module chamber 101.

[0040] Referring to Figure 2, the wire harness module 2 is provided independently of the charging pile body 1; that is, the wire harness module 2 can be detachably attached to charging pile bodies 1 of different specifications. When charging an electric vehicle, the user uses their own wire harness module 2 for charging.

[0041] Referring to Figures 3 and 4, the wire harness module 2 comprises a module housing 21, a winding reel 22, a charging wire harness 23, and a reel drive member 24. Inside the module housing 21 is a housing chamber 201, and the winding reel 22 is located inside the housing chamber 201 and is rotatably fitted to the central mounting rod of the module housing 21. An electrical slip ring is fixedly attached to the module housing 21, and one end of the charging wire harness 23 is fixed to the movable element of the electrical slip ring and electrically connected, making it easier to ensure current transport between the charging wire harness 23 and the electrical slip ring when it rotates.

[0042] The charging wire harness 23 is wound in multiple layers along the radial direction of the winding reel 22, which makes it easier to reduce the volume of the winding reel, and also makes it convenient to drive and rotate the winding reel 22 by pulling the charging wire harness 23 to unwind it, or to rotate the winding reel 22 to wind the charging wire harness 23 onto the winding reel 22. The winding reel 22 provided inside the storage chamber 201 makes it easy to keep all or part of the charging wire harness 23 inside the storage chamber 201, which is advantageous in reducing the chances of the charging wire harness 23 being scattered on the ground and frequently stepped on or run over during use or storage, thereby reducing the circumstances under which damage to the charging wire harness 23 may occur.

[0043] In this application, "electrical slip ring" refers to any known type of electrical slip ring in the prior art that can rotate a conductive movable element relative to a conductive stator, and that ensures that current transport is not interrupted when the conductive rotor rotates due to close contact between the movable element and the stator.

[0044] Referring to Figure 4, the charging wire harness 23 is electrically connected to the charging pile connector 3 by a stator of an electrical slip ring at one end, and the charging pile connector 3 fits into the charging pile interface 11 of the charging pile body 1. When the charging pile connector 3 is plugged into the charging pile interface 11, the charging pile body 1 can transport power from the power grid to the outside via the charging wire harness 23, but when the charging pile connector 3 is unplugged from the charging pile interface 11, the transport of power from the power grid to the outside via the charging wire harness 23 stops. Of course, in some embodiments, the charging pile connector 3 may be extended by a charging cable to facilitate connection to charging pile interfaces 11 at different locations.

[0045] The other end of the charging wire harness 23 is fixedly connected to the automotive connector 4, which is compatible with the charging interface of an electric vehicle. When the charging pile connector 3 is plugged into the charging pile interface 11 of the charging pile body 1, and the automotive connector 4 is plugged into the charging interface of an electric vehicle, the charging pile body 1 can transport power from the power grid to the electric vehicle via the charging wire harness 23, thereby charging the electric vehicle. On the other hand, when the charging pile connector 3 is unplugged from the charging pile interface 11, or when the automotive connector 4 is unplugged from the charging interface of an electric vehicle, the power from the power grid stops being transported to the electric vehicle via the charging wire harness 23, thereby stopping the charging of the electric vehicle.

[0046] Therefore, by plugging in the automotive connector 4 and the electric vehicle's charging interface in a detachable manner, and by plugging in the charging pile connector 3 and the charging pile interface 11 in a detachable manner, when charging the electric vehicle is required, the charging pile connector 3 and the automotive connector 4 must be plugged in corresponding to the charging pile interface 11 and the electric vehicle's charging interface, respectively. After the electric vehicle is fully charged, the automotive connector 4 can be unplugged from the electric vehicle's charging interface, reducing the occurrence of situations where charging cables are scattered on the ground without being managed.

[0047] Furthermore, in some embodiments, a conversion adapter is provided on the charging pile connector 3 to enable the charging wire harness 23 to be compatible with charging pile bodies 1 of different specifications, and to ensure that the wire harness module 2 can be effectively connected to charging pile bodies 1 of different specifications when necessary, or to ensure the versatility of the wire harness module 2 by enabling connection of other electrical equipment during external discharge of the electric vehicle.

[0048] The charging wire harness 23 comprises a conductor core wire 231, an intermediate filling layer 232, and an insulating coating. The conductor core wire is located inside the intermediate filling layer, and the insulating coating covers the intermediate filling layer, facilitating the transport of charging current through the conductor core wire, which is made of a conductive metal such as copper. The conductor core wire is formed by twisting together several conductive wires, and the cross-sectional area of ​​each of these conductive wires is 0.2 mm². 2 By doing the following, the conductor core becomes more easily deformed through the small gaps between the conductive wires, thus giving the conductor core better flexibility.

[0049] The cross-sectional shape of the conductor core can be adjusted according to the actual situation, and can be, for example, circular, square, or rectangular. Referring to Figures 3 and 4, in Embodiment 1 of this application, the cross-section of the conductor core is rectangular, and the thickness of the conductor core is smaller than the width of the conductor core, so that the conductor core is more easily curved along its thickness direction, thereby making it easier to wind the conductor core onto the winding reel 22 and reducing the occurrence of situations where the conductor core is too stiff to wind.

[0050] The reel drive member 24 is used to rotate the winding reel 22 during winding and unwinding. The reel drive member 24 drives and rotates the winding reel 22 by its own elastic or electric rotation, making it easier for the user to wind or unwind. The reel drive member 24 may be arranged as a spiral spring or an electric motor.

[0051] In Embodiment 1 of this application, when the reel drive member 24 is arranged as a spiral spring, it is easy to drive and rotate the winding reel 22 by utilizing its own elasticity. The inner and outer rings of the reel drive member 24 are fixedly connected to the central mounting rod of the module housing 21 and the winding reel 22, respectively, and the reel drive member 24 is fitted onto the central mounting rod of the module housing 21. When the user unwinds the charging wire harness 23, the elastic force of the reel drive member 24 pulls the charging wire harness 23 out of the storage chamber 201, and when the user winds the charging wire harness 23, the elastic force stored in the reel drive member 24 during unwinding rotates the winding reel 22 in the reverse direction, storing the charging wire harness 23 back into the storage chamber 201.

[0052] Referring to Figure 5, the side of the take-up reel 22 facing the electric slip ring is provided with a first reel groove 202 and a second reel groove 203, the diameter of which is larger than that of the first reel groove 202, and the first reel groove 202 communicates with the second reel groove 203 via a notch. Referring to Figures 3 and 4 together, a locking turntable 204 is rotatably fitted into the module housing 21, and a sliding projection 205 is integrally provided on the locking turntable 204, the sliding projection 205 is provided away from the axis of the locking turntable 204, and the sliding projection 205 is slidably fitted into the first reel groove 202 and the second reel groove 203. A locking projection 207, which is fixedly connected to the take-up reel, is provided at the location of the notch. The locking projection 207 is provided with a locking groove 206 for accommodating the sliding projection 205, and both the first reel groove 202 and the second reel groove 203 communicate with the locking groove 206 via notches. When the sliding projection 205 is housed inside the locking groove 206, the angle α between the line connecting the axis of the locking turntable 204 and the sliding projection 205 and the line connecting the axis of the winding reel and the sliding projection 205 is in the range of 75° to 105°. This makes it difficult for the winding reel 22 to rotate due to the elastic action of the reel drive member 24, making it easier for the user to control the length of the charging wire harness 23 that has been pulled out. Furthermore, an inclined opening is provided at the notch of the first reel groove 202, and a contraction portion is provided at the notch of the second reel groove, facilitating the sliding projection 205 to enter the first reel groove 202 from the locking groove 206 along path L1, or to enter the locking groove 206 in the opposite direction from the second reel groove 203 along path L2.

[0053] Illustratively, referring to Figure 5, the sliding projection 205 is initially located inside the locking groove 206. When the user pulls the charging wire harness 23 against the elastic force of the reel drive member 24 and moves the winding reel 22 clockwise, the sliding projection 205 moves forward relative to the winding reel 22 along path L1 or path L2, and further rotates the winding reel 22 by the required angle as needed. After the charging wire harness 23 has been pulled out to the required length range, when the charging wire harness 23 is released, the sliding projection 205 moves backward relative to the winding reel 22 along path L1 or path L2, and further locks the charging wire harness 23 in a position close to the required length. Thus, it becomes easier to control the length of the charging wire harness 23 used, and further reduces the occurrence of situations where the charging wire harness 23 is pulled out too long, scattered on the ground, and stepped on.

[0054] In the implementation principle of the automobile charging pile according to Embodiment 1 of this application, the wire harness module 2 and the charging pile body 1 are independent of each other, so the wire harness module 2 does not need to be moved by the user after use is complete, and the occurrence of situations in which the wire harness module 2 is damaged prematurely due to insufficient maintenance is reduced. Furthermore, when charging via the wire harness module 2, the charging wire harness 23 needs to be pulled out independently from within the wire harness module 2, so the charging wire harness 23 is less likely to be too long and scattered on the ground, thereby reducing the likelihood of the charging wire harness 23 being stepped on and damaged.

[0055] Example 2: Embodiment 2 of this application discloses a wire harness module applicable to the automotive charging pile described in Embodiment 1. Referring to Figures 6 to 10, the main differences from the wire harness module described in Embodiment 1 are as follows.

[0056] 1. The winding method of the charging wire harness 23 is different; that is, the charging wire harness 23 is wound around the winding reel 22 along the axial direction of the winding reel 22.

[0057] 2. The locking mechanism of the winding reel 22 is different; specifically, the winding reel 22 is locked in one direction by a locking ratchet ring 221 and locking ratchet teeth 222.

[0058] Details are as follows:

[0059] Referring to Figures 9 and 10, a locking ratchet ring 221 is coaxially and fixedly connected to the winding reel 22, and the teeth of the locking ratchet ring 221 are arranged to face inward toward the axis of the winding reel 22. Four locking ratchet teeth 222 are slidably fitted into the module housing 21 by a sliding plate 211, and the sliding plate 211 is fixedly mounted to the module housing 21. The four locking ratchet teeth 222 are distributed circumferentially around the axis of the locking ratchet ring 221, and all four locking ratchet teeth 222 are slidably fitted into the sliding plate 211 along the radial direction of the locking ratchet ring 221. The specifications of the lock ratchet teeth 222 are compatible with those of the lock ratchet ring 221, and the lock ratchet teeth 222 and the slide plate 211 are connected by a lock elastic member 223 having elasticity such as a linear spring, thereby allowing the lock ratchet teeth 222 to be pressed and fitted into the lock ratchet ring 221 more easily under normal conditions.

[0060] A lock reel 212 is rotatably fitted to the central mounting rod of the module housing 21 by a bearing, and the lock reel 212 is connected to the lock ratchet teeth 222 via a lock link 2121, the lock link 2121 having both ends rotatably fitted to the lock reel 212 and the lock ratchet teeth 222 respectively, so that all four lock ratchet teeth 222 can be moved closer to or further away from the lock reel 212 along the radial direction of the lock ratchet ring 221, thereby allowing all four lock ratchet teeth 222 to be stably engaged with the lock ratchet ring 221 or to be quickly disengaged from the lock ratchet ring 221 at the same time.

[0061] When the user pulls and unwinds the charging wire harness 23, the rotation direction of the locking ratchet ring 221 is the same as the orientation of the teeth of the locking ratchet teeth 222, and the locking ratchet ring 221 pushes open the locking ratchet teeth 222 against the elastic force of the linear spring, causing the locking ratchet teeth 222 to slide along the slide plate 211, and the locking link 2121 drives and rotates the locking reel 212, disengaging the locking ratchet teeth 222 from the locking ratchet ring 221, so that the winding reel 22 can rotate without being hindered by the locking ratchet teeth 222.

[0062] When the user releases the charging wire harness 23 and finishes unwinding, the rotation direction of the locking ratchet ring 221 is opposite to the direction of the teeth of the locking ratchet teeth 222, and the locking ratchet ring 221 is held in place by the teeth of the locking ratchet teeth 222. Thus, the winding reel 22 is less likely to rotate due to the obstruction of the locking ratchet teeth 222, making it easier for the user to pull out the required length of charging wire harness 23 from the storage chamber 201.

[0063] When it is necessary to wind up the charging wire harness 23, the user rotates the lock reel 212 against the elasticity of the linear spring, and the lock link 2121 simultaneously moves the teeth of the four lock ratchet teeth 222 away from the teeth of the lock ratchet ring 221, allowing the winding reel 22 to rotate without being obstructed by the lock ratchet teeth 222, and to store the charging wire harness 23 back inside the storage chamber 201.

[0064] In the implementation principle of the wire harness module according to Embodiment 2 of this application, the reel drive member 24, which is arranged as a locking ratchet tooth 222, a locking ratchet ring 221, and a spiral spring, allows the user to conveniently pull out the required length of the charging wire harness 23 when winding it up.

[0065] Example 3: Embodiment 3 of this application discloses a wire harness module, the main differences from the wire harness module described in Embodiment 1 are as follows.

[0066] 1. The winding method of the charging wire harness 23 is different; that is, the charging wire harness 23 is wound around the winding reel 22 along the axial direction of the winding reel 22.

[0067] 2. The arrangement of the reel drive member 24 is different; specifically, the reel drive member 24 is arranged as an electrical component.

[0068] 3. The locking mechanism of the winding reel 22 is different; specifically, the winding reel 22 is locked by the stationary position of the movable element of the reel drive member 24.

[0069] Details are as follows:

[0070] Referring to Figures 11 and 12, the reel drive member 24 drives and rotates the winding reel 22 using a power source. The stator of the reel drive member 24 is fixedly attached to the central mounting plate of the module housing 21, the central mounting plate is located inside the winding reel 22, and the movable part of the reel drive member 24 drives and rotates the winding reel 22 using the transmission gear set 5.

[0071] The transmission gear set 5 comprises a drive sun gear 51, a transmission planetary gear 52, and a transmission gear ring 53. The drive sun gear 51 is coaxially fixed and mounted to the movable element of the reel drive member 24. There are four transmission planetary gears 52, which are distributed circumferentially around the axis of the drive sun gear 51. The transmission planetary gears 52 are rotatably fitted into the module housing 21 and mesh with the drive sun gear 51. The transmission gearing 53 is fixed and mounted coaxially to the winding reel 22, and all four transmission planetary gears 52 mesh with the transmission gearing 53. The drive sun gear 51 drives the transmission planetary gears 52 to rotate, and the transmission planetary gears 52 drive the transmission gearing 53 and the winding reel 22 to rotate. Thus, within the limited internal space of the winding reel 22, the relatively compact transmission gear set 5 and the small-volume, low-output reel drive member 24 make it easy to drive the winding reel 22 to perform winding and unwinding.

[0072] The wire harness module 2 further comprises a control button 25, a module circuit board 26, and a storage battery 27. The control button 25 is fixedly mounted outside the module housing 21, and both the control button 25 and the reel drive member 24 are electrically connected to the module circuit board 26. The control button 25 has a first control state and a second control state, and when the control button 25 switches between the first and second control states, the rotation direction of the rotor of the reel drive member 24 switches between counterclockwise and clockwise.

[0073] The battery 27 is fixedly mounted to the central mounting plate of the module housing 21, and both the battery 27 and the charging wire harness 23 are electrically connected to the module circuit board 26. Therefore, when charging an electric vehicle, the battery 27 can store power from the power grid via the current transported by the charging wire harness 23 and the module circuit board 26, reducing the need for the user to separately charge or replace the battery 27. Furthermore, by supplying energy to the reel drive member 24 and the control button 25 using the battery 27, the power supply demand of the wire harness module 2 to the external power grid can be reduced, thereby increasing the versatility of the wire harness module 2. For example, the wire harness module 2 powered by the battery 27 can be used for external discharge of an electric vehicle to meet the power demands of the user's camping equipment.

[0074] The implementation principle of the wire harness module according to Embodiment 3 of this application is that the reel drive member 24, which is arranged as an electric device, drives and rotates the winding reel 22, allowing the user to perform winding and unwinding in a more convenient electric manner. Furthermore, by integrating the charging of the storage battery 27 into the charging process of an electric vehicle, the wire harness of the storage battery 27 is not limited to a single usage scenario, which is advantageous in ensuring the versatility of the wire harness module 2.

[0075] Example 4: Embodiment 4 of this application discloses an automotive charging pile that includes all the technical features of Embodiment 1, plus the following additional technical features.

[0076] Referring to Figure 13, the charging pile body 1 is provided with a liquid cooling module 6, which comprises a heat sink 61, a cooling fan 62, a liquid cooling plate 63, and a refrigerant storage tank 64. The cooling fan 62 is attached to one side of the heat sink 61 to facilitate the blowing of heat emitted by the heat sink 61 to the outside of the automotive charging pile. Several liquid cooling plates 63 are provided, and each of the liquid cooling plates 63 is fitted in close proximity to each charging unit of the automotive charging pile where heat generation is relatively serious, so that the heat generated during charging of the charging unit is transferred to the liquid cooling plate 63 in a timely manner. The liquid cooling plate 63 is connected to the input terminal of the heat sink 61 via a liquid cooling input pump 611, and the liquid cooling plate 63 is connected to the output terminal of the heat sink 61 via a liquid cooling output pump 612, facilitating the transfer of heat from the charging unit to the refrigerant and further dissipation to the outside of the automotive charging pile via the heat sink 61. The refrigerant storage tank 64 is connected to the pipeline between the radiator 61 and the liquid cooling plate 63 via a refrigerant replenishment pump 641, facilitating the replenishment of the refrigerant. Here, the refrigerant may be a liquid refrigerant such as water, aqueous coolant, fluorinated liquid, or synthetic oil.

[0077] Referring to Figure 14, the charging wire harness 23 further comprises a wire harness inlet pipe 234 and a wire harness outlet pipe 235, both of which can be connected to the liquid cooling module 6, facilitating the transport of refrigerant from the liquid cooling module 6 to the wire harness inlet pipe 234 and wire harness outlet pipe 235. In addition, to facilitate the connection of the wire harness inlet pipe 234 and wire harness outlet pipe 235, an electrical / liquid composite slip ring may be attached to the charging pile body 1 to transport current and liquid during rotation. Both the wire harness inlet pipe 234 and wire harness outlet pipe 235 are located inside the intermediate packed bed, and they communicate with each other, facilitating the flow of refrigerant from the wire harness inlet pipe 234 to the wire harness outlet pipe 235. The wire harness inlet pipe 234 and the wire harness outlet pipe 235 can both be connected to the charging pile body 1 in a detachable manner. For example, a wire harness input connector (not shown) is connected to the wire harness inlet pipe 234, and a wire harness output connector (not shown) is connected to the wire harness outlet pipe 235, and both the wire harness input connector and the wire harness output connector can be connected to the charging pile body 1 in a detachable manner.

[0078] When charging an electric vehicle is required, both ends of the charging wire harness 23 must be plugged into the charging pile connector and charging interface, respectively. Additionally, the wire harness input fitting and wire harness output fitting must be connected to the pile body output interface and pile body input interface, respectively. Circulating the refrigerant between the liquid cooling module 6, the wire harness inlet pipe 234, and the wire harness outlet pipe 235 is advantageous in reducing the adverse effects of heat generated in the conductor core when charging at high power.

[0079] Referring to Figure 13, the charging pile body 1 is further provided with a cleaning module 7 which includes a cleaning output pump 71 and a cleaning input pump 72.

[0080] The cleaning output pump 71 is detachably connected to the wire harness inlet pipe 234 via an output control valve 711, which may be an electric three-way valve. The output end of the radiator 61 is connected to one valve port of the output control valve 711, facilitating the connection of the output end of the radiator 61 to the wire harness inlet pipe 234, or the connection of the output end of the cleaning output pump 71 to the wire harness inlet pipe 234. The input end of the cleaning output pump 71 is connected to a cleaning agent storage device (not shown) which transports cleaning agent to the wire harness inlet pipe 234 and the wire harness outlet pipe 235, and further cleans the refrigerant remaining inside the liquid cooling module 6 and inside the wire harness inlet pipe 234 and the wire harness outlet pipe 235, thereby facilitating a reduction in the frequency with which the user cleans the wire harness module 2.

[0081] The cleaning input pump 72 is detachably connected to the wire harness outlet pipe 235 via an input control valve 721, which may be an electric three-way valve. The input end of the radiator 61 is connected to one valve port of the input control valve 721, facilitating the connection of the input end of the radiator 61 to the wire harness outlet pipe 235, or the connection of the input end of the cleaning input pump 72 to the wire harness outlet pipe 235. The output end of the cleaning input pump 72 is connected to a detergent discharge device, facilitating the transfer of refrigerant remaining inside the liquid cooling module 6 and inside the wire harness inlet pipe 234 and wire harness outlet pipe 235 to the detergent discharge device. Therefore, by adjusting the communication state of the output control valve 711 and the input control valve 721, the charging wire harness 23 can be cooled by the liquid cooling module 6 during charging, and the inside of the charging wire harness 23 and / or the inside of the liquid cooling module 6 can be cleaned and maintained by the cleaning module 7 after charging is complete.

[0082] Specifically, in this embodiment 4, the type of cleaning agent is water, the cleaning agent storage device is the municipal water supply network, the cleaning agent discharge device is the municipal drainage network, the rechargeable pile body 1 is supplied with water via the existing external water supply network, and the water after cleaning is discharged via the existing drainage network.

[0083] Furthermore, an output flow meter 12 is provided at the output terminal of the output control valve 711, and an input flow meter 13 is provided at the input terminal of the input control valve 721, making it easy to measure the flow rates of the refrigerant and cleaning agent.

[0084] Furthermore, Embodiment 4 of this application further discloses a method for controlling a liquid cooling module and a cleaning module, which includes the following steps.

[0085] S1: Detects whether the wire harness inlet pipe 234 and wire harness outlet pipe 235 are connected to the output control valve 711 and input control valve 721 respectively, according to the standard.

[0086] For example, when a wire harness inlet pipe 234 or wire harness outlet pipe 235 is connected to the charging pile body 1 by a screw-type interlocking mechanism, a method for detecting the number of turns in the screw-type interlocking mechanism can be used to detect whether the number of turns is sufficient, thereby determining whether the connection is sufficiently strong and sealed.

[0087] After both the wire harness inlet pipe 234 and the wire harness outlet pipe 235 are connected to their respective positions according to the standards, refrigerant is supplied to the wire harness inlet pipe 234, and the electric vehicle is charged at the standard output. If the wire harness inlet pipe 234 and wire harness outlet pipe 235 are not connected to their designated positions according to the standard, the user is instructed to check the connection status of the wire harness inlet pipe 234 and wire harness outlet pipe 235. After the user reconnects the wire harness inlet pipe 234 and wire harness outlet pipe 235 according to the standard as instructed, refrigerant is input to the wire harness inlet pipe 234 and the electric vehicle is charged at the standard output. If the user has not reconnected the wire harness inlet pipe 234 and wire harness outlet pipe 235 according to the standard, the refrigerant input to the wire harness inlet pipe 234 is stopped and the electric vehicle is charged at an output lower than the standard output.

[0088] If, in step S1, it is confirmed that both the wire harness inlet pipe 234 and the wire harness outlet pipe 235 are connected to their respective positions according to the standards, then steps S2 and S3 below are performed.

[0089] S2: The output flow meter measures the output flow rate Q1 of the refrigerant / cleaning agent output from the output control valve in real time, and the input flow meter measures the input flow rate Q2 of the refrigerant / cleaning agent input from the input control valve in real time.

[0090] S3: Compare the output flow rate Q1 with the input flow rate Q2.

[0091] If the difference between the output flow rate Q1 and the input flow rate Q2 is always within the error range k during time t, it is determined that there is no refrigerant / cleaning agent leakage. Both the output control valve 711 and the input control valve 721 are kept open, and refrigerant is continuously transported via the liquid cooling module 6, or cleaning agent is continuously transported via the cleaning module 7.

[0092] If the difference between the output flow rate Q1 and the input flow rate Q2 is always outside the error range k during time t, it is determined that a refrigerant / cleaning agent leak has occurred, and both the output control valve 711 and the input control valve 721 are adjusted to the closed position, and the transport of refrigerant via the liquid cooling module 6 or the transport of cleaning agent via the cleaning module 7 is stopped.

[0093] Therefore, by determining the output flow rate Q1 and input flow rate Q2 of the refrigerant / cleaning agent in real time, if the output flow rate Q1 and input flow rate Q2 exceed the design values ​​for an extended period, the transport of the refrigerant / cleaning agent is stopped. Thus, if the user has not connected the wire harness inlet pipe 234 and wire harness outlet pipe 235 according to the specifications, the supply of the refrigerant / cleaning agent is immediately shut off, making it easier to reduce losses due to refrigerant / cleaning agent leakage.

[0094] The implementation principle of the automobile charging pile according to Embodiment 4 of this application is that when a user charges an electric vehicle, the charging wire harness 23 must be connected to the liquid cooling module 6 inside the charging pile body 1, which facilitates cooling the charging wire harness 23 and is advantageous in ensuring that the charging wire harness 23 is at an appropriate operating temperature. Furthermore, after the electric vehicle is fully charged, the cleaning module 7 cleans the refrigerant remaining in the charging wire harness 23, thereby facilitating a reduction in the frequency with which the user needs to clean the charging wire harness 23 afterward.

[0095] All of the above are preferred embodiments of the present application and do not limit the scope of protection of this application; therefore, any equivalent modifications made based on the structure, shape, and principle of this application shall be included within the scope of protection of this application. [Explanation of symbols]

[0096] 1. Rechargeable pile unit, 101 Module Chamber, 11. Charging pile interface, 12 output flowmeter, 13 Input flow meter, 2 wire harness modules, 201 containment chamber, 202 First reel groove, 203 Second reel groove, 204 Rock Rotating Disc, 205 sliding protrusion, 206 Locking groove, 207 Locking protrusion, 21 module housing, 211 Slide disc, 212 Lock Reel, 2121 Rocklink, 22 reel-in-one, 221 Locking ratchet ring, 222 locking ratchet teeth, 223 Locking elastic member, 23 Charging wire harness, 231 Conductor core wire, 232 Intermediate packing layer, 233 Insulating coating, 234 Wire harness inlet pipe, 235 Wire harness lead tube, 24 Reel drive member, 25 control buttons, 26 module circuit boards, 27 Storage batteries, 3 charging cable connectors, 4. Automotive connectors, 5 transmission gear sets, 51 Drive Sun Gear, 52 Transmission planetary gears, 53 Transmission gearing, 6 liquid cooling modules, 61 Heatsink, 611 Liquid-cooled input pump, 612 liquid-cooled output pump, 62 cooling fans, 63 liquid cooling plates, 64 refrigerant storage tanks, 641 Refrigerant replenishment pump, 7 Cleaning module, 71 Cleaning output pump, 711 Output control valve, 72 Cleaning input pump, 721 Input Control Valve

Claims

1. It is a car charging station, The charging stand comprises a main unit (1) and a wire harness module (2), The charging stand body (1) is provided with a charging stand interface (11), The wire harness module (2) comprises a module housing (21), a winding reel (22), a charging wire harness (23), and a reel driving member (24). A storage chamber (201) is provided inside the module housing (21), the winding reel (22) is rotatably fitted into the module housing (21), and the winding reel (22) is located inside the storage chamber (201), and the reel driving member (24) is used to rotate the winding reel (22). The charging wire harness (23) is wound around the retractable reel (22), and a charging stand connector (3) and an automotive connector (4) are connected to both ends of the charging wire harness (23), The charging stand connector (3) and the charging stand interface (11) are plug-in mated in a detachable manner, and the automotive connector (4) and the automotive charging interface are plug-in mated in a detachable manner. The reel drive member (24) is arranged as an electric motor, and the reel drive member (24) has a stator and a rotor attached to the module housing (21) and the winding reel (22), respectively. The wire harness module (2) further comprises a control button (25) electrically connected to the reel drive member (24), The car charging station is characterized in that the control button (25) has a first control state and a second control state, and when the control button (25) switches between the first control state and the second control state, the rotation direction of the rotor of the reel drive member (24) switches between counterclockwise and clockwise.

2. The automobile charging station according to claim 1, characterized in that the reel driving member (24) is arranged as a spiral spring, and both ends of the reel driving member (24) are attached to the module housing (21) and the winding reel (22), respectively.

3. The winding reel is provided with a first reel groove (202) and a second reel groove (203), the second reel groove (203) having a larger diameter than the first reel groove (202), and the first reel groove (202) communicating with the second reel groove (203) via a notch. A locking turntable (204) is rotatably fitted into the module housing, and a sliding projection (205) is provided on the locking turntable (204), the sliding projection (205) is provided away from the axis of the locking turntable (204), and the sliding projection (205) is slidably fitted into the first reel groove (202) and the second reel groove (203). The car charging station according to claim 2, characterized in that the winding reel (22) is provided with a locking projection (207) at the position where the notch is located, the locking projection (207) is provided with a locking groove (206) for accommodating the sliding projection (205), and both the first reel groove (202) and the second reel groove (203) communicate with the locking groove (206), and when the sliding projection (205) is accommodated inside the locking groove (206), the angle α between the line connecting the axis of the locking rotating plate (204) and the sliding projection (205) and the line connecting the axis of the winding reel (22) and the sliding projection (205) is in the range of 75° to 105°.

4. The automobile charging station according to claim 1, further comprising a rechargeable battery (27) for supplying power to the reel drive member (24) and the control button (25).

5. The charging wire harness (23) is electrically connected to the storage battery (27), and when charging an electric vehicle via the wire harness module (2), the current is supplied to charge the storage battery (27) via the charging wire harness (23), as described in claim 4.

6. The charging station body (1) is provided with a liquid cooling module (6) for transporting refrigerant. The charging wire harness (23) comprises a conductor core (231), a wire harness inlet (234), a wire harness outlet (235), and an intermediate filling layer (232), wherein the conductor core (231), the wire harness inlet (234), and the wire harness outlet (235) are all located inside the intermediate filling layer (232). The wire harness inlet pipe (234) is connected to the wire harness outlet pipe (235), the wire harness inlet pipe (234) and the charging stand body (1) are connected in a detachable manner, and the wire harness outlet pipe (235) and the charging stand body (1) are connected in a detachable manner. The automobile charging station according to claim 1, characterized in that when both the wire harness inlet pipe (234) and the wire harness outlet pipe (235) are connected to the charging station body (1), the refrigerant circulates between the liquid cooling module (6), the wire harness inlet pipe (234), and the wire harness outlet pipe (235).

7. The charging stand body (1) is provided with a cleaning module (7) for transporting cleaning agents. The automobile charging station according to claim 6, characterized in that when both the wire harness inlet pipe (234) and the wire harness outlet pipe (235) are connected to the charging station body (1), the cleaning agent circulates between the cleaning module (7), the wire harness inlet pipe (234), and the wire harness outlet pipe (235).

8. The control method for the liquid cooling module and the cleaning module is applied, and the control method for the liquid cooling module and the cleaning module is as follows: Step S1 confirms that both the wire harness inlet pipe (234) and the wire harness outlet pipe (235) are completely connected. Step S2 involves measuring the output flow rate Q1 of the refrigerant / cleaning agent output from the output control valve (711) in real time using the output flow meter (12), and measuring the input flow rate Q2 of the refrigerant / cleaning agent input from the input control valve (721) in real time using the input flow meter (13), The step includes comparing the output flow rate Q1 with the input flow rate Q2, If the difference between the output flow rate Q1 and the input flow rate Q2 is always within the error range k during time t, it is determined that there is no leakage of refrigerant / cleaning agent, and the refrigerant is continuously transported via the liquid cooling module (6), or the cleaning agent is continuously transported via the cleaning module (7). The automobile charging station according to claim 7, characterized in that if the difference between the output flow rate Q1 and the input flow rate Q2 is always outside the error range k during time t, it is determined that a leak of refrigerant / cleaning agent has occurred, and the transport of refrigerant via the liquid cooling module (6) is stopped, or the transport of cleaning agent via the cleaning module (7) is stopped.

9. The automobile charging station according to claim 1, characterized in that the charging station body (1) is provided with a module chamber (101) for housing the wire harness module (2).

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