Direct current charging seat, direct current charging system and vehicle

Abstract

The utility model provides a direct-current charging seat, a direct-current charging system and a vehicle, and relates to the technical field of automobiles, the direct-current charging seat comprises a charging seat body, a locking device and a fixing structure, a mounting surface is formed on the outer side surface of the charging seat body, the locking device is arranged on the mounting surface, and the fixing structure is connected to the locking device and the charging seat body. According to the direct-current charging base, the locking device is additionally arranged on the charging base body, when the gun head of the alternating-current charging pile is inserted into the charging base body, the gun head can be locked and fixed to the charging base body through the locking device, and in other words, the locking rod of the locking device is inserted into the charging base body to complete the locking action. Therefore, the condition is provided for the alternating current charging pile to charge the automobile provided with the direct current charging base under the alternating current charging current larger than or equal to 32 A, and the problem that the alternating current charging pile cannot charge the automobile provided with the direct current charging base due to the fact that an existing direct current charging base is lack of locking action is solved.

Description

Technical Field

[0001] This application belongs to the technical field of automobiles, and particularly relates to a DC charging seat, a DC charging system, and a vehicle. Background Art

[0002] Currently, DC charging has gradually become the mainstream energy replenishment method in the market. However, in remote areas, the situation where DC charging piles cannot be installed due to problems such as grid capacity and supporting facilities still exists.

[0003] In addition, according to national standards, for AC charging currents less than 16A, an electronic lock is not required; for AC charging currents greater than or equal to 32A, an electronic lock must be set. After the charging gun is inserted, if there is no locking action, the vehicle will only charge with a current of 16A or lower; if a higher charging current is to be obtained, a locking action must be performed to ensure that the charging gun will not be pulled out during charging.

[0004] Therefore, for an automobile equipped with a DC charging seat, even if the vehicle is internally equipped with an AC / DC adapter, etc., it is impossible to charge the automobile equipped with a DC charging seat through an AC charging pile at an AC charging current greater than or equal to 32A. Summary of the Utility Model

[0005] The purpose of the embodiments of this application is to provide a DC charging seat, a DC charging system, and a vehicle to solve the technical problem in the prior art that it is difficult for an AC charging pile to charge an automobile equipped with a DC charging seat at an AC charging current greater than or equal to 32A.

[0006] To achieve the above purpose, the technical solution adopted in this application is:

[0007] The first aspect of this application provides a DC charging seat, including:

[0008] A charging seat body, on the outer side surface of which an installation surface is formed;

[0009] A locking device, which is arranged on the installation surface. When the locking device is in the locked state, the locking rod of the locking device can be inserted into and cooperate with a groove on the charging pile gun head of the charging seat body;

[0010] A fixing structure, which is connected between the locking device and the charging seat body.

[0011] Optionally, a lock hole communicating with the inner side surface of the charging seat body is provided on the installation surface, and the locking rod of the locking device is inserted into the lock hole.

[0012] Optionally, a convex platform is formed on the circumferential side surface of the charging seat body. On the side of the convex platform away from the charging seat body, an installation surface is formed. The installation surface is a plane and the locking device is attached to the installation surface.

[0013] Optionally, fixing structures are respectively arranged on both sides of the boss along the first direction, and the first direction is perpendicular to the axis direction of the charging base body.

[0014] Optionally, the locking device is detachably connected to the charging base body through the fixing structure.

[0015] Optionally, the fixing structure includes a first bolt column, a second bolt column and a connecting bolt. The first bolt column is arranged on the locking device, the second bolt column is arranged on the charging base body, and the connecting bolt passes through the first bolt column and inserts into the threaded hole on the second bolt column.

[0016] Optionally, the second bolt column is directly connected to the outer circumferential side surface of the charging base body; alternatively, a connecting seat is arranged on the circumferential side surface of the charging base body, and the second bolt column is arranged on the connecting seat.

[0017] Optionally, the locking device is an electronic lock.

[0018] In the second aspect of the present application, a DC charging system is provided, including a control device, a detection circuit, an AC-DC converter, and a DC charging base as provided in any of the above technical solutions. The locking device, the detection circuit, and the AC-DC converter of the DC charging base are all connected to the control device. When the charging pile gun head is inserted into the DC charging base, the control device receives the signal output by the detection circuit and controls the lock rod of the locking device to insert into the groove on the charging pile gun head.

[0019] In the third aspect of the present application, a vehicle is provided, including the DC charging system as provided in the above technical solutions.

[0020] The beneficial effect of the present application is as follows: In the present application, a locking device is added to the charging base body. When the gun head of the AC charging pile is inserted into the charging base body, the gun head can be locked to the charging base body through the locking device, that is, the lock rod of the locking device inserts into the gun head to complete the locking action. Since the DC charging base provided in the present application can complete the locking action, it provides conditions for the AC charging pile to charge a vehicle equipped with a DC charging base under an AC charging current greater than or equal to 32A, avoiding the problem that the existing DC charging base lacks a locking action, resulting in the AC charging pile being unable to charge a vehicle equipped with a DC charging base. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1Schematic structural diagram of the DC charging dock provided by the embodiment of the present application;

[0023] Figure 2 Explosion schematic diagram of the cooperation between the DC charging dock and the gun head provided by the embodiment of the present application;

[0024] Figure 3 Another schematic structural diagram of the DC charging dock provided by the embodiment of the present application;

[0025] Figure 4 Explosion structural diagram of the DC charging dock provided by the embodiment of the present application;

[0026] Figure 5 Schematic structural diagram of the charging dock body provided by the embodiment of the present application;

[0027] Figure 6 Schematic structural diagram of the locking device provided by the embodiment of the present application.

[0028] Among them, the reference numerals in the figure are as follows:

[0029] 1 - DC charging dock; 2 - gun head;

[0030] 11 - charging dock body; 12 - locking device; 13 - fixing structure;

[0031] 111 - boss; 112 - mounting surface; 113 - lock hole; 114 - connecting seat;

[0032] 121 - lock rod;

[0033] 131 - first bolt column; 132 - second bolt column; 133 - connecting bolt;

[0034] 21 - groove. Detailed implementation manners

[0035] To make the objectives, technical solutions, and advantages of the present application clearer, the following will further describe the embodiments of the present application in detail with reference to the drawings. The embodiments described by referring to the drawings are exemplary and are intended to explain the present application, rather than being construed as a limitation to the present application.

[0036] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "thickness", "top", "bottom", "inner", "outer", "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0037] For the convenience of clearly describing the technical solutions of this application, terms such as "first" and "second" are used to distinguish identical or similar items with basically the same functions and roles. Those skilled in the art can understand that terms such as "first" and "second" do not limit the quantity and execution order, and the terms "first" and "second" do not necessarily limit being different.

[0038] In this application, unless otherwise clearly specified and limited, terms such as "connected" and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

[0039] In this application, "and / or" is merely a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this text generally represents an "or" relationship between the associated objects before and after.

[0040] It should be noted that in this application, words such as "in one embodiment", "exemplarily", and "for example" are used to give examples, illustrations, or explanations. Any embodiment or design solution described as "in one embodiment", "exemplarily", or "for example" in this application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Exactly, using words such as "in one embodiment", "exemplarily", and "for example" aims to present relevant concepts in a specific manner.

[0041] Please refer to Figures 1 - 6 , and now the DC charging dock 1 provided by the embodiment of this application will be described.

[0042] A DC charging dock 1 includes a charging dock body 11, a locking device 12, and a fixing structure 13.

[0043] The charging dock body 11 is used to cooperate with the gun head 2 of the charging pile. That is, when the charging dock body 11 is applied to a vehicle, by inserting the gun head 2 of the charging pile into the charging dock body 11, it can be used to charge the battery of the vehicle.

[0044] According to national standards, for alternating current (AC) charging currents less than 16 A, an electronic lock is not required; for AC charging currents greater than or equal to 32 A, an electronic lock must be set. After the charging gun is inserted, if there is no locking action, the vehicle will charge only with a current of 16 A or lower; if a higher charging current is to be obtained, a locking action must be taken to ensure that the charging gun head 2 will not be pulled out during charging. Therefore, for vehicles equipped with existing DC charging sockets, even if they are internally equipped with on-vehicle chargers, AC-DC adapters, etc. (mainly used for voltage conversion, which can convert alternating current (AC) into direct current (DC), and the gun head 2 of the AC charging pile is inserted into the DC charging socket 1, and the alternating current is converted into direct current through the AC-DC adapter to charge the battery inside the vehicle), it is impossible to charge the vehicle equipped with the DC charging socket 1 through the AC charging pile at an AC charging current greater than or equal to 32 A. Coupled with the fact that DC charging has gradually become the mainstream energy replenishment method in the market, there are still situations where DC charging piles cannot be installed in remote areas due to problems such as grid capacity and supporting facilities. Therefore, it is necessary to solve the problem of being able to charge the vehicle equipped with the DC charging socket 1 through the AC charging pile at an AC charging current greater than or equal to 32 A.

[0045] Therefore, the DC charging socket 1 of this embodiment further includes a locking device 12 and a fixing structure 13. Please refer to Figure 1 , which is a schematic structural diagram of the DC charging socket 1, Figure 1 in which the charging socket body 11, the locking device 12 and the fixing structure 13 are shown. In Figure 1 it is shown that the locking device 12 is arranged on one side of the charging socket body 11.

[0046] An installation surface 112 is formed on the outer side surface of the charging socket body 11, and the locking device 12 is arranged on the installation surface 112. By providing the installation surface 112 on the charging socket body 11, it is convenient to position and install the locking device 12 on the charging socket body 11.

[0047] The locking device 12 has a locked state and an unlocked state. When the locking device 12 is in the locked state, the locking rod 121 of the locking device 12 can be inserted and engaged with the groove 21 on the charging pile gun head 2 on the charging socket body 11, so that the charging pile gun head 2 cannot be pulled out from the charging socket body 11; when the locking device 12 is in the unlocked state, the locking rod 121 of the locking device 12 retracts, that is, the locking rod 121 of the locking device 12 does not insert into the groove 21 on the charging pile gun head 2, and the locking of the charging pile gun head 2 by the locking device 12 is released, so that the charging pile gun head 2 can be pulled out from the charging socket body 11.

[0048] The locking device 12 is arranged on the mounting surface 112, and the locking device 12 is connected to the charging base body 11 through the fixing structure 13, that is, the position of the locking device 12 is fixed relative to the charging base body 11. Since the insertion of the gun head 2 of the charging pile into the charging base body 11 is directional, that is, when the gun head 2 is inserted into the charging base body 11, the position of the groove 21 on the charging pile gun head 2 is fixed relative to the charging base body 11. Therefore, the locking device 12 can be fixed on the charging base body 11. When the locking device 12 is in the locked state, the locking rod 121 of the locking device 12 can be inserted into and engaged with the groove 21 on the charging pile gun head 2 on the charging base body 11.

[0049] In this embodiment, a locking device 12 is added to the charging base body 11. When the gun head 2 of the AC charging pile is inserted into the charging base body 11, the gun head 2 can be locked to the charging base body 11 through the locking device 12, that is, the locking action is completed by inserting the locking rod 121 of the locking device 12 into the charging base body 11. Since the DC charging base 1 provided in this embodiment can complete the locking action, conditions are provided for the AC charging pile to charge a vehicle equipped with the DC charging base 1 at an AC charging current greater than or equal to 32A, avoiding the problem that the existing DC charging base 1 lacks a locking action, resulting in the inability of the AC charging pile to charge a vehicle equipped with the DC charging base 1 at an AC charging current greater than or equal to 32A.

[0050] Generally, the outer circumferential side of the charging base body 11 is mainly an arc surface. Therefore, in order to facilitate fixing the locking device 12 on the charging base body 11, it is necessary to change the shape of the charging base body 11 so that a mounting surface 112 is formed on the outer circumferential side of the charging base body 11, and the locking device 12 can be stably mounted on the charging base body 11 through the mounting surface 112.

[0051] For the fixing structure 13 connecting the charging base body 11 and the locking device 12, the locking device 12 can be detachably connected to the charging base body 11 through the fixing structure 13. For example, the locking device 12 can be snapped onto the charging base body 11 through the fixing structure 13. By setting the locking device 12 to be detachably connected to the charging base body 11, it is convenient to repair and replace the locking device 12 when the locking device 12 fails. Of course, it is also possible to set the locking device 12 to be non - detachably connected to the charging base body 11.

[0052] When locking the gun head, that is, the locking device 12 fixed on the charging base body 11, when its locking rod 121 extends, it can be inserted into the gun head 2, thereby realizing the locking of the gun head 2. At this time, the locking device 12 is in the locked state. For the locking rod 121 inserted into the groove 21 on the gun head 2, there are the following two situations:

[0053] Case 1: The locking rod 121 does not pass through the charging base body 11 but is directly inserted into the gun head 2 .

[0054] When the gun head 2 of the AC charging pile is inserted into the charging seat body 11, the locking device 12 is activated, and the locking rod 121 of the locking device 12 is inserted into the part of the gun head 2 that is not inserted into the charging seat body 11, that is, the part of the gun head 2 that is not inserted into the charging seat body 11 is provided with a groove or hole that matches the locking rod 121.

[0055] Case 2: The charging base body 11 is provided with a locking hole 113 communicating with the inner side of the charging base body 11 , and the locking rod 121 of the locking device 12 can be inserted into the groove 21 on the gun head 2 through the locking hole 113 .

[0056] See also Figure 4 , is an exploded schematic diagram of the locking device 12 and the charging base body 11 in the DC charging base 1, Figure 4 The locking hole 113 on the charging seat body 11 is shown in the figure. When the gun head 2 of the AC charging pile is inserted into the charging seat body 11, the locking device 12 is activated, and the locking rod 121 of the locking device 12 is inserted into the part of the gun head 2 inserted into the charging seat body 11 through the locking hole 113.

[0057] See also Figure 2 , which is a structural diagram of the gun tip 2 not being inserted into the DC charging seat 1. Figure 2 The gun head 2 in the figure is a national standard AC / DC adapter gun head, and the gun head 2 has a groove 21. In the second situation, it is not necessary to add a new groove 21 on the gun head 2. Instead, the locking rod 121 of the locking device 12 cooperates with the groove 21 on the gun head 2 to avoid the need to add an additional groove 21 on the gun head 2 and make the structure complicated. Of course, if there is no groove 21 on the gun head 2, a new groove 21 needs to be added to the gun head 2. Please refer to Figure 3 , Figure 3 is a structural schematic diagram of a DC charging station 1, Figure 3 The diagram shows that the locking device 12 is in a locked state, and the locking rod 121 of the locking device 12 extends out of the inner surface of the charging stand body 11. Figure 3 The middle locking rod 121 extends out of the inner surface of the charging base body 11 to be inserted into the groove 21 on the gun head 2 .

[0058] In the second case, the locking rod 121 of the locking device 12 is inserted into the groove 21 on the gun head 2 through the locking hole 113, which is also conducive to reducing the volume of the locking device 12 compared to the first case. Since the space around the charging base body 11 in the car is limited, the smaller the volume of the locking device 12, the better.

[0059] The shape of the locking hole 113 on the charging base body 11 matches the shape of the locking rod 121, and there is a gap between the locking hole 113 and the locking rod 121, that is, the locking rod 121 does not contact the inner side surface of the locking hole 113.

[0060] There are two grooves 21 on the gun head 2. Therefore, two locking devices 12 can be provided on the charging base body 11, and the locking rods 121 of the two locking devices 12 are respectively matched with different grooves 21. Of course, it is preferable to provide only one locking device 12 on the charging base body 11, which simplifies the structure of the DC charging base while satisfying the locking operation of the DC charging base 1.

[0061] In Case 2, it is preferable to provide the locking hole 113 on the mounting surface 112. Please refer to Figure 5 , which shows the locking hole 113 provided on the mounting surface 112. Of course, to accommodate different structures of the locking device 12, the mounting surface 112 and the locking hole 113 can be provided in different areas of the charging base body 11.

[0062] Regarding the locking device 12, in one embodiment, the locking device 12 is an electronic lock.

[0063] The electronic lock is a smart lock that uses electronic technology to control the opening and closing of the lock. Usually, a detection circuit is configured on the DC charging base 1. When the gun head 2 of the AC charging pile is inserted into the charging base body 11, the voltage of the detection circuit changes and transmits a signal to the control device. After receiving the signal output by the detection circuit, the control device can output a control signal to control the locking rod 121 of the locking device 12 to move and insert into the groove 21 on the gun head 2 of the charging pile to complete the locking operation.

[0064] When the vehicle's charging is completed, a signal will be sent to the control device. After receiving the signal, the control device will control the locking rod 121 of the locking device 12 to retract to release the locking of the gun head 2 of the charging pile by the locking device 12.

[0065] The locking device 12 in this embodiment adopts an electronic lock, which can automatically control the locking of the gun head 2. For the DC charging base 1 provided in this embodiment, a sound reminder device can also be provided on the vehicle or the charging pile. When the locking rod 121 of the locking device 12 moves and inserts into the groove 21 on the gun head 2 of the charging pile, the control device can control the sound reminder device to emit a sound reminder to remind the user that the locking is completed; when the locking rod 121 of the locking device 12 moves and retracts, the control device can control the sound reminder device to emit a sound reminder to remind the user that the unlocking is completed.

[0066] The locking device 12 provided in this embodiment preferably has a volume smaller than that of the charging base body 11. Since the space around the charging base body 11 on the vehicle is limited, the volume of the locking device 12 is preferably smaller than that of the charging base body 11. Please refer toFigure 1 It shows that the length of the locking device 12 along the X-axis direction is less than the length of the charging base body 11 along the X-axis direction, and the length of the locking device 12 along the Z-axis direction is less than the length of the charging base body 11 along the Z-axis direction.

[0067] Regarding the locking rod 121 of the locking device 12, please refer to Figure 6 , Figure 6 is a schematic structural diagram of the locking device 12. As can be seen from Figure 6 , the locking rod 121 has a free end, and the cross-sectional area of the free end is smaller than the cross-sectional area of other regions of the locking rod 121 except the free end, so that the free end of the locking rod 121 can be inserted into the groove 21 on the gun head 2. That is, by setting the cross-sectional area of the free end of the locking rod 121 to be smaller than the cross-sectional area of other regions of the locking rod 121 except the free end, a groove 21 with a relatively small volume can be formed on the gun head 2, and at the same time, the sufficient strength of the locking rod 121 can be ensured.

[0068] As previously recorded, when the gun head 2 is a national standard AC / DC adapter gun head, the gun head 2 is provided with a groove 21 by itself. Therefore, when the gun head 2 is a national standard AC / DC adapter gun head with a groove 21 provided by itself, the size of the free end of the locking rod 121 should be set to cooperate with the groove 21 on the national standard AC / DC adapter gun head.

[0069] Generally, one locking rod 121 can be provided on the locking device 12. Of course, a locking device 12 including more than two locking rods 121 can also be selected. At this time, a corresponding number of grooves 21 need to be provided on the gun head 2 so that the locking rod 121 can be inserted into the corresponding groove 21 on the gun head 2 when it extends out. It is preferable that the locking device 12 includes only one locking rod 121, which can reduce the volume of the locking device 12 while ensuring that the gun head 2 is locked on the charging base body 11.

[0070] For the example where the locking device 12 includes two locking rods 121, the two locking rods 121 can be inserted into the groove 21 on the gun head 2 through the locking holes 113; or, the two locking rods 121 can be directly inserted into the gun head 2 without passing through the charging base body 11; or, one of the two locking rods 121 can be inserted into the groove 21 on the gun head 2 through the locking hole 113 and the other locking rod 121 can be directly inserted into the gun head 2 without passing through the charging base body 11.

[0071] Regarding the mounting surface 112 formed on the outer side surface of the charging base body 11, in one embodiment, please refer to Figure 4 and Figure 5 , Figure 4 is an exploded view of the charging base body 11 and the locking device 12, Figure 5 is a schematic structural diagram of the charging base body 11, Figure 4 and Figure 5As shown in the figure, a boss 111 is formed on the circumferential side surface of the charging base body 11. An installation surface 112 is formed on the side of the boss 111 away from the charging base body 11. The installation surface 112 is a flat surface, and the locking device 12 is attached to the installation surface 112.

[0072] By providing the boss 111, it is convenient to form the installation surface 112. By providing the installation surface 112 as a flat surface, it is convenient to position the locking device 12 on the charging base body 11, which is beneficial to fixing the locking device 12 on the charging base body 11.

[0073] Regarding the area size of the installation surface 112, it should be adapted to the volume size of the locking device 12. Regarding the height of the boss 111 protruding from the charging base body 11, it needs to cooperate with the length of the locking rod 121 of the locking device 12. Please refer to Figure 2 , Figure 2 As shown in the figure, the gun head 2 is a national standard AC / DC adapter gun head, and the gun head 2 is provided with a groove 21 by itself. When the locking rod 121 of the locking device 12 is inserted into the groove 21 on the gun head 2 through the lock hole 113, it is necessary to ensure that the free end of the locking rod 121 extends into the groove 21 and does not contact the wall surface of the groove 21. Therefore, it is necessary to reasonably set the height of the boss 111 protruding from the charging base body 11 according to the length of the locking rod 121 of the locking device 12 extending out.

[0074] Regarding the position of the boss 111 on the charging base body 11, it corresponds to the position of the groove 21 on the gun head 2 when the gun head 2 is inserted into the charging base body 11. Please refer to Figure 2 As shown in the figure, the boss 111 is located on the left side of the charging base body 11.

[0075] Please refer to Figure 2 As shown in the figure, a boss 111 is formed on the charging base body 11. That is, when a locking device 12 is provided on the charging base body 11, a boss 111 is provided on the charging base body 11. When two locking devices 12 are provided on the charging base body 11, two bosses 111 can be provided on the charging base body 11, and the two locking devices 12 are respectively installed on the corresponding bosses 111.

[0076] Please refer to Figure 5 , Figure 5 It is a schematic structural diagram of the charging base body 11, Figure 5 As shown in the figure, a plurality of square holes are provided on the boss 111. The square holes are weight-reducing holes. By providing the weight-reducing holes, the weight of the charging base body 11 can be reduced, and the material used for injection molding the shell of the charging base body 11 can be reduced, saving costs. Figure 5The weight-reducing holes shown in the figure are square-shaped and are matched with the block-shaped boss 111. Of course, the shape of the weight-reducing holes can also be set to other shapes than square. In addition, in some examples, weight-reducing holes may not be provided on the boss 111, that is, only locking holes 113 are provided on the boss 111.

[0077] Regarding the distribution of the fixing structure 13, in one embodiment, fixing structures 13 are respectively provided on both sides of the boss 111 along the first direction, and the first direction is perpendicular to the axis direction of the charging base body 11.

[0078] Combined with Figure 4 , the first direction is Figure 4 the Z-axis direction in . By setting that fixing structures 13 are respectively provided on both sides of the boss 111 along the first direction, the locking device 12 can be stably fixed on the charging base body 11, and preferably the fixing structures 13 are symmetrically distributed.

[0079] Please refer to Figure 4 and Figure 5 , which shows that one fixing structure 13 is respectively provided on both sides of the boss 111. Since the space around the charging base body 11 on the vehicle is limited, therefore, on the premise of stably fixing the locking device 12 on the charging base body 11, it is better that the number of the fixing structures 13 is relatively small.

[0080] In this embodiment, the first direction is perpendicular to the axis direction of the charging base body 11 to facilitate reasonable layout and realize fixing the locking device 12 on the charging base body 11 within a limited space.

[0081] Combined with Figure 4 , the first direction is Figure 4 the Z-axis direction in . For locking devices 12 with different structures, it can be set that fixing structures 13 are respectively provided on both sides of the boss 111 along the first direction, and the first direction is parallel to the axis direction of the charging base body 11.

[0082] In this embodiment, since fixing structures 13 are respectively provided on both sides of the boss 111, the number of the fixing structures 13 is more than two. For locking devices 12 with different structures, one fixing structure 13 can also be provided to fix the locking device 12 on the charging base body 11 through one fixing structure 13.

[0083] In one embodiment, the locking device 12 is detachably connected to the charging base body 11 through a fixing structure 13 to facilitate the replacement of the locking device 12. Regarding the specific structure of the locking device 12, in one embodiment, the fixing structure 13 includes a first bolt column 131, a second bolt column 132, and a connecting bolt 133. The first bolt column 131 is provided on the locking device 12, the second bolt column 132 is provided on the charging base body 11, and the connecting bolt 133 passes through the first bolt column 131 and is inserted into the threaded hole on the second bolt column 132.

[0084] Please refer to Figure 3 and Figure 4 , Figure 3 which shows the locking device 12 connected to the charging base body 11 through the fixing structure 13. Figure 4 Fig. is an exploded view of the locking device 12 and the charging base body 11. Figure 3 and Figure 4 show the first bolt column 131, the second bolt column 132, and the connecting bolt 133. When installing the locking device 12 on the charging base body 11, first fit the locking device 12 to the mounting surface 112 on the charging base body 11, then align the first bolt column 131 with the second bolt column 132. A through hole is provided on the first bolt column 131, and the inner side surface of the through hole may or may not have threads. A threaded hole is provided inside the second bolt column 132. The connecting bolt 133 is threadedly connected to the second bolt column 132. Insert the connecting bolt 133 into the first bolt column 131 and screw it into the second bolt column 132 so that the connecting bolt 133 is fixed between the first bolt column 131 and the second bolt column 132, thereby fixing the locking device 12 and the charging base body 11.

[0085] After installing the fixing structures 13 on the locking device 12 and the charging base body 11, the locking device 12 can be fixed on the charging base body 11.

[0086] The fixing structure 13 provided in this embodiment has a simple structure and is easy to operate, facilitating the installation and disassembly of the locking device 12.

[0087] Regarding the connection between the second bolt column 132 and the charging base body 11, please refer to Figure 5 , which shows that the second bolt column 132 provided below the boss 111 is directly connected to the outer circumferential side surface of the charging base body 11; please continue to refer to Figure 5 , which shows that a connecting seat 114 is provided on the outer circumferential side surface of the charging base body 11, and the second bolt column 132 provided above the boss 111 is provided on the connecting seat 114, and the free ends of the two second bolt columns 132 are flush. The overall structure of the second bolt column 132 and the charging base body 11 is compact, which is reasonable and conducive to the space around the charging base body 11.

[0088] Preferably, the second bolt post 132 disposed below the boss 111 is connected not only to the circumferential side surface of the charging base body 11 but also to the boss 111 to improve the connection strength; the second bolt post 132 disposed above the boss 111 is connected not only to the connection seat 114 but also to the boss 111 to improve the connection strength.

[0089] Regarding the distribution of the first bolt posts 131 on the locking device 12, refer to Figure 6 , Figure 6 which is a schematic structural diagram of the locking device 12, Figure 6 and it is shown that stepped surfaces are formed on the upper and lower end surfaces of the locking device 12, and the two first bolt posts 131 are respectively disposed on the upper and lower stepped surfaces of the locking device 12, so that the structure of the locking device 12 is compact and conducive to reducing the overall volume of the locking device 12.

[0090] Preferably, the second bolt post 132 and the housing of the charging base body 11 are integrally formed; preferably, the first bolt post 131 and the housing of the locking device 12 are integrally formed.

[0091] Preferably, please refer to Figure 5 , which shows that reinforcing ribs are provided on the second bolt post 132 to improve the strength of the second bolt post 132. Similarly, reinforcing ribs can also be provided on the first bolt post 131.

[0092] This embodiment provides a DC charging system, including a control device, a detection circuit, an AC / DC converter, and the DC charging base 1 provided in any of the above embodiments. The locking device 12, the detection circuit, and the AC / DC converter of the DC charging base 1 are all connected to the control device.

[0093] When the charging pile gun head 2 is inserted into the DC charging base 1, the control device receives the signal output by the detection circuit and controls the locking rod 121 of the locking device 12 to insert into the groove 21 on the charging pile gun head 2. When the vehicle charging is completed, a signal will be sent to the control device. After receiving the signal, the control device will control the locking rod 121 of the locking device 12 to retract to release the locking of the charging pile gun head 2 by the locking device 12.

[0094] In this embodiment, a locking device 12 is added to the charging base body. When the gun head 2 of the AC charging pile is inserted into the charging base body 11, the gun head 2 can be locked to the charging base body 11 through the locking device 12, that is, the locking rod 121 of the locking device 12 is inserted into the gun head 2 to complete the locking action. Since the DC charging base 1 provided in this embodiment can complete the locking action, it provides conditions for the AC charging pile to charge a vehicle equipped with the DC charging base 1 at an AC charging current greater than or equal to 32A, avoiding the problem that the existing DC charging base lacks a locking action, resulting in the inability of the AC charging pile to charge a vehicle equipped with the DC charging base.

[0095] This embodiment provides a vehicle, including the DC charging system provided in the above embodiment.

[0096] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A DC charging stand, characterized in that, Comprising: A charging base body, on the outer side surface of which an installation surface is formed; A locking device, arranged on the installation surface, when the locking device is in the locked state, the locking rod of the locking device can be inserted and fitted into a groove on a charging pile gun head on the charging base body; A fixing structure, connecting the locking device and the charging base body.

2. The DC charging stand according to claim 1, wherein A lock hole communicating with the inner side surface of the charging base body is arranged on the installation surface, and the locking rod of the locking device is inserted into the lock hole.

3. The DC charging stand according to claim 1, characterized in that, A boss is formed on the circumferential outer side surface of the charging base body, and the installation surface is formed on one side of the boss away from the charging base body, the installation surface is a plane and the locking device is attached to the installation surface.

4. The DC charging stand according to claim 3, characterized in that, The fixing structures are respectively arranged on both sides of the boss along a first direction, and the first direction is perpendicular to the axis direction of the charging base body.

5. The DC charging stand according to any one of claims 1-4, characterized in that, The locking device is detachably connected to the charging base body through the fixing structure.

6. The DC charging base according to claim 5, characterized in that, The fixing structure includes a first bolt column, a second bolt column and a connecting bolt, the first bolt column is arranged on the locking device, the second bolt column is arranged on the charging base body, and the connecting bolt passes through the first bolt column and is inserted into a threaded hole on the second bolt column.

7. The DC charging stand according to claim 6, characterized in that, The second bolt column is directly connected to the circumferential outer side surface of the charging base body; or, a connecting seat is arranged on the circumferential side surface of the charging base body, and the second bolt column is arranged on the connecting seat.

8. The DC charging stand according to any one of claims 1-4, characterized in that, The locking device is an electronic lock.

9. A DC charging system, characterized in that, Comprising a control device, a detection circuit, an AC / DC converter and the DC charging base according to any one of claims 1-8, the locking device, the detection circuit and the AC / DC converter of the DC charging base are all connected to the control device, when the charging pile gun head is inserted into the DC charging base, the control device receives a signal output by the detection circuit and controls the locking rod of the locking device to be inserted into a groove on the charging pile gun head.

10. A vehicle, characterized in that, Comprising the DC charging system according to claim 9.

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